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au:PEREZ, VICTOR HABER

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Potenciales evocados auditivos de tronco en neonatos O nacidos a gran altitud
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Huamaní, Charles

; Oré Montalvo, Víctor

; Acuña Mamani, Juan

; Bayona Pancorbo, William

; Perez Alviz, Carlos

; Loaiza, Gladys Mateos

; Córdova Heredia, Golda

; Urquizo Chihuantito, Karen

Archivos argentinos de pediatría

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nov 2023, Volume 121 N. 5 Pages 7 - 7

Abstract: Es | Text: Es | PDF: Es

RESUMEN Introducción. Una forma no invasiva y segura de evaluar los parámetros neurofisiológicos en recién nacidos es la evaluación de los potenciales evocados auditivos del tronco encefálico (PEAT). Objetivo. Evaluar las latencias e intervalos de ondas de los PEAT en neonatos sanos nacidos a gran altitud (Cusco, 3399 msnm). Población y métodos. Estudio transversal y prospectivo. Se incluyeron neonatos menores a 14 días de vida, dados de alta a menos de 7 días de nacidos, evaluados para determinar los valores de los PEAT a intensidades sonoras de 70 dB, 80 dB y 90 dB. Se incluyeron las variables edad gestacional, peso al nacer, tipo de parto. Se calcularon las diferencias de las medianas de las latencias e intervalos de las ondas según edad gestacional y peso al nacer. Resultados. Se evaluaron 96 neonatos (17 pretérminos). Las medianas de las latencias de las ondas I a V a 90 dB fueron las siguientes: onda I 1,56 ms; onda II 2,74 ms; onda III 4,37 ms; onda IV 5,62 ms, onda V 6,63 ms. La latencia de la onda I para 80 dB fue de 1,71 ms y para 70 dB de 1,88 ms. Los intervalos para las ondas (I-III), (III-V) y (I-V) fueron de 2,8 ms, 2,2 ms y 5,0 ms respectivamente, sin diferencias entre intensidades (p >0,05). La prematuridad y el bajo peso estuvieron asociados a latencias de la onda I más prolongadas (p <0,05). Conclusiones. Se presentan valores ajustados de latencias e intervalos de los PEAT en neonatos nacidos a gran altitud. Se identificó que, a distintas intensidades sonoras, se ven diferencias en las latencias de las ondas, pero no en los intervalos entre ondas.

https://doi.org/10.5546/aap.2022-02809

Efecto de la uva y el portainjerto sobre la asimilación de iones del suelo en Cuauhtémoc, Chihuahua
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Sáenz-Pérez, Criseida Alhelí

; Ojeda-Barrios, Dámaris Leopoldina

; Perez-Leal, Ramona

; Macías-Carranza, Víctor

; Cabello-Pasini, Alejandro

Revista mexicana de ciencias agrícolas

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nov 2023, Volume 14 N. 7 elocation e2979

Abstract: Es En | Text: Es En | PDF: Es | PDF: En

Resumen El uso de portainjertos en la viticultura moderna es una práctica común para evitar el impacto de la filoxera y nemátodos sobre los viñedos. Sin embargo, el uso de los portainjertos afecta procesos metabólicos de la planta incluso la asimilación de agua y iones del suelo. En México, al igual que en otros países productores de uva, el uso de portainjertos se ha generalizado para proteger los viñedos contra microorganismos nocivos. No obstante, poco se conoce cuál es el impacto del uso de los portainjertos sobre la fisiología de las variedades de vid. Por lo anterior, el objetivo de este estudio fue el evaluar el efecto de los portainjertos 110-R, 101-14, 1103-P y 3309-C sobre la asimilación de nitrógeno, fósforo, sodio, cobre, hierro, manganeso y zinc en vides Merlot, Shiraz y Cabernet Sauvignon de Chihuahua, México. La concentración de nitrógeno no varió en relación con el portainjerto usado ni la variedad cultivada. Además, la concentración de N en las hojas de vid disminuyó a lo largo del tiempo. Lo anterior es el resultado de la movilización de iones a zonas de almacenaje durante el periodo de senescencia foliar. Por otro lado, la concentración de fósforo, sodio, cobre, hierro y zinc en las hojas de las variedades y portainjertos estudiadas no presentaron diferencias significativas. Sin embargo, la concentración de Mn en las hojas de Merlot fue 30% mayor en las vides con portainjerto 1103-P en comparación a las vides con portainjerto 3309-C. En este estudio se demostró que el portainjerto impacta la asimilación de iones en las variedades de uva para vino.

Abstract The use of rootstocks in modern viticulture is a common practice to avoid the impact of phylloxera and nematodes on vineyards. However, the use of rootstocks affects the metabolic processes of the plant, including the assimilation of water and ions from the soil. In Mexico, as in other grape-growing countries, the use of rootstocks has become widespread to protect vineyards against harmful microorganisms. Nevertheless, little is known about the impact of rootstock use on the physiology of vine varieties. Therefore, this study aimed to evaluate the effect of rootstocks 110-R, 101-14, 1103-P, and 3309-C on the assimilation of nitrogen, phosphorus, sodium, copper, iron, manganese, and zinc in Merlot, Shiraz, and Cabernet Sauvignon vines from Chihuahua, Mexico. The nitrogen concentration did not vary in relation to the rootstock used or the variety grown. In addition, the concentration of N in vine leaves decreased over time. This is the result of the mobilization of ions to storage areas during the period of foliar senescence. On the other hand, the concentration of phosphorus, sodium, copper, iron, and zinc in the leaves of the varieties and rootstocks studied did not present significant differences. Nonetheless, the concentration of Mn in Merlot leaves was 30% higher in vines with rootstock 1103-P compared to vines with rootstock 3309-C. In this study, it was shown that rootstock impacts ion assimilation in wine grape varieties.

https://doi.org/10.29312/remexca.v14i7.2979

Evaluación del neurodesarrollo en niños con exposición intrauterina al virus del Zika: estudio observacional transversal
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Estupiñan-Perez, Victor H.

; Jiménez-Urrego, Angela M.

; Cruz-Mosquera, Freiser E.

; Botero-Carvajal, Alejandro

Revista Peruana de Medicina Experimental y Salud Pública

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sep 2023, Volume 40 N. 3 Pages 333 - 339

Abstract: Es En | Text: Es En | PDF: Es | PDF: En

RESUMEN El virus del Zika produce desenlaces adversos para el desarrollo del sistema nervioso. Este estudio describe el neurodesarrollo cognitivo, adaptativo, comunicativo, social y motor de niños expuestos intrauterinamente al virus del Zika y hace una evaluación del neurodesarrollo con la escala de Battelle a los tres años después del nacimiento. Participaron 30 niños con una media de edad al momento de la evaluación de 37,5 (RIC: 35,7-39,2) meses. Se halló una edad equivalente en meses en las áreas: motora 25,8 (DE: 7,8), adaptativa 26,7 (DE: 5,8), comunicativa 30,2 (DE: 6,9), personal social 33,5 (DE: 8,3) y cognitiva 35,6 (DE: 5,9). Los niños presentaron retraso en el desarrollo para la edad cronológica, 25 niños presentaban retraso en una de las cinco áreas evaluadas. Una alta proporción de niños expuestos al virus del Zika durante la gestación presentaron retraso en el desarrollo, principalmente en el dominio adaptativo y motor.

ABSTRACT Zika virus infection affects the development of the nervous system. This study describes the cognitive, adaptative, communicative, social and motor neurodevelopment of children exposed to Zika virus in utero. We used the Batelle scale to assess neurodevelopment three years after birth. Thirty children were included, who had a mean age at evaluation of 37.5 (IQR: 35.7-39.2) months. We found the following equivalent ages in months for each area: motor 25.8 (SD: 7.8), adaptive 26.7 (SD: 5.8), communicative 30.2 (SD: 6.9), social personal 33.5 (SD: 8.3) and cognitive 35.6 (SD: 5.9). Children showed development delay for their chronological age, 25 children were delayed in one of the five areas assessed. A high rate of children exposed to Zika virus during gestation presented delayed developmental age, mainly regarding the adaptive and motor areas.

https://doi.org/10.17843/rpmesp.2023.403.12880

Strengthening public health policies for childhood cancer: Peru’s achievements through the WHO Global Initiative for Childhood Cancer
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Maradiegue, Essy

; Pascual, Claudia

; Vasquez, Liliana

; Maza, Ivan

; Ugaz, Cecilia

; Montoya, Jackeline

; Zapata, Arturo

; García, Henry

; Chavez, Sharon

; Ordoñez, Katy

; Rossi, Jonathan

; Diaz, Rosdali

; Morales, Roxana

; Trigoso, Viviana

; Ames, Romy

; Celis, Edinho

; Barzola, Isela

; Torres, Liliana

; Cosme, Melitta

; Tarrillo, Fanny

; Rojas, Ninoska

; Santillan, Carlos

; Quispe, Yuly

; Palacios, Víctor

; Godoy, Victoria

; Tello, Mariela

; Tarco, Duniska

; Wachtel, Antonio

; Malaver, Estela

; Diaz, Elizabeth

; Goyburu, Marlene

; Perez, Vivian

; Talavera, Ivy

; Baca, Maria Edith

; Maza, Mauricio

; Saldaña, Lily

; Holguin, Alexis

; Jarquin, Marta

; Loggetto, Patricia

; Metzger, Monika

; Friedrich, Paola

; Lam, Cath

; Rodriguez Galindo, Carlos

Revista Panamericana de Salud Pública

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2023, Volume 47 elocation e132

Abstract: Pt Es En | Text: Pt Es En | PDF: Pt | PDF: Es | PDF: En

RESUMO Objetivo. Relatar o progresso, desde junho de 2019, da implementação da Iniciativa Global da Organização Mundial da Saúde para o Câncer Infantil no Peru, no âmbito do marco CureAll, que pode ser replicado em países de baixa e média renda. Método. Foi utilizado um método misto de avaliação participativa e documental. A avaliação participativa incluiu interessados diretos de diferentes instituições governamentais, organizações sem fins lucrativos e parceiros internacionais. O aspecto documental consistiu em uma revisão de dados sobre o ambiente regulatório, projetos nacionais e intervenções implementadas. O Ministério da Saúde do Peru contou com mais de 150 participantes para a formação de comitês de trabalho, que elaboraram políticas e documentos normativos para fortalecer os serviços de atenção primária à saúde. Resultados. Entre os resultados alcançados estão a redução da taxa nacional de abandono do tratamento, de 18,6% para 8,5%, a aprovação da Lei do Câncer Infantil, melhorias no manejo de pacientes com neutropenia febril e redução nas taxas de deterioração clínica e mortalidade de pacientes hospitalizados. A implementação do CureAll permite que as equipes locais adotem estratégias específicas e monitorem os resultados iniciais em oncologia pediátrica. Conclusões. Os resultados obtidos refletem o trabalho em equipe, a liderança das autoridades, o suporte técnico dos profissionais e o apoio das organizações envolvidas. Serão necessárias mais ações para garantir a sustentabilidade, além de ferramentas de monitoramento para assegurar o sucesso das atividades planejadas.

RESUMEN Objetivo. Informar sobre los avances de Perú en el periodo transcurrido a partir de junio del 2019, en relación con la puesta en práctica de la Iniciativa Global de la Organización Mundial de la Salud contra el Cáncer Infantil utilizando el marco CureAll, que es posible replicar en los países de ingresos bajos y medianos. Métodos. Se utilizó un método mixto de evaluación participativa y documental. En la evaluación participativa intervinieron las partes interesadas de diversas instituciones gubernamentales, organizaciones sin fines de lucro y asociados internacionales. El aspecto documental consistió en un examen de los datos sobre el entorno regulatorio, los proyectos nacionales y las intervenciones llevadas a cabo. El Ministerio de Salud involucró a más de 150 participantes que formaron los comités de trabajo que han elaborado documentos normativos y regulatorios a fin de reforzar los servicios de asistencia. Resultados. Entre los logros cabe citar la disminución del 18,6% al 8,5% de la tasa nacional de abandono del tratamiento, la aprobación de la Ley de Cáncer Infantil, las mejoras en el tratamiento de los pacientes con neutropenia febril y la reducción de las tasas de episodios de deterioro clínico y de mortalidad en los pacientes hospitalizados. El marco de aplicación de CureAll permite que los equipos locales pongan en práctica estrategias específicas y realicen un seguimiento de los resultados iniciales en el ámbito de la oncología pediátrica. Conclusiones. Los resultados obtenidos reflejan el trabajo en equipo, el liderazgo de las autoridades, el respaldo técnico de los profesionales y el apoyo de las organizaciones implicadas. En el futuro, será necesario adoptar nuevas medidas para asegurar su viabilidad, y será preciso contar con herramientas de seguimiento para garantizar el éxito de las actividades planificadas.

ABSTRACT Objective. To report the progress in Peru, since June 2019, in the implementation of the World Health Organization Global Initiative for Childhood Cancer using the CureAll framework, which can be replicated in low- and middle-income countries. Methods. A mixed method was used of participatory and documentary evaluation. The participatory evaluation included stakeholders from various government institutions, nonprofit organizations, and international partners. The documentary aspect consisted of a review of data on the regulatory environment, national projects, and interventions implemented. The Ministry of Health engaged more than 150 participants to form working committees, which have developed policy and regulatory documents to strengthen care services. Results. Achievements include a decrease in the national treatment abandonment rate from 18.6% to 8.5%, the approval of the Childhood Cancer Law, improvements in the management of patients with febrile neutropenia, and a reduction in rates of events of clinical deterioration and mortality of hospitalized patients. The Cure All implementation framework allows local teams to implement specific strategies and monitor early outcomes in pediatric oncology. Conclusions. The results obtained reflect the teamwork, the leadership of the authorities, the technical support of professionals, and the support of involved organizations. Further actions will be needed to guarantee sustainability, and monitoring tools are needed to assure success in the planned activities.

https://doi.org/10.26633/rpsp.2023.132

Contribution of public oral pathology services to the diagnosis of oral and oropharyngeal cancer in Brazil
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LOUREDO, Brendo Vinicius Rodrigues

; CURADO, Maria Paula

; PENAFORT, Paulo Victor Mendes

; DE ARRUDA, José Alcides Almeida

; ABREU, Lucas Guimarães

; MESQUITA, Ricardo Alves

; PINTO-JÚNIOR, Décio dos Santos

; ABRAHÃO, Aline Corrêa

; ANDRADE, Bruno Augusto Benevenuto de

; AGOSTINI, Michelle

; MORAES, Renata Mendonça

; ANBINDER, Ana Lia

; DOURADO, Pedro Henrique Silva

; SANTOS, Teresa Cristina Ribeiro Bartholomeu dos

; PIRES, Fábio Ramoa

; BORDIGNON, Natalia Cristina Trentin

; GONDAK, Rogério Oliveira

; DE OLIVEIRA, Marcia Gaiger

; CARRARD, Vinicius Coelho

; MARTINS, Manoela Domingues

; SOUSA-NETO, Sebastião Silvério

; ARANTES, Diego Antônio Costa

; MENDONÇA, Elismauro Francisco

; CIESLAK-SANCHES, Silvia Roberta

; ANTUNES, Daniella Moraes

; AMARAL-SILVA, Gleyson Kleber do

; MANIERI, Patricia Rubia

; RAMALHO, Luciana Maria Pedreira

; DOS SANTOS, Jean Nunes

; LEONEL, Augusto César Leal da Silva

; PEREZ, Danyel Elias da Cruz

; VERHEUL, Hannah Carmem Carlos Ribeiro Silva

; BARROSO, Keila Martha Amorim

; RODRIGUES, Flávia Luiza Santos

; GONZAGA, Amanda Katarinny Goes

; FERNANDES, Romana Renery

; DE SOUZA, Lélia Batista

; SOUZA, Lucas Lacerda de

; PONTES, Flávia Sirotheau Corrêa

; PONTES, Hélder Antônio Rebelo

; SILVA, Caroline Alfaia

; CÂMARA, Jeconias

; LIBÓRIO-KIMURA, Tatiana Nayara

; SANTOS-SILVA, Alan Roger

; LOPES, Márcio Ajudarte

; ALMEIDA, Oslei Paes de

; ROMAÑACH, Mário José

; VARGAS, Pablo Agustin

Brazilian Oral Research

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2023, Volume 37 elocation e126

Abstract: En | Text: En | PDF: En

Abstract This study aimed to evaluate the contribution of oral and maxillofacial pathology laboratories (OMPLs) in Brazilian public universities to the diagnosis of lip, oral cavity, and oropharyngeal squamous cell carcinoma (SCC). A cross-sectional study was performed using biopsy records from a consortium of sixteen public OMPLs from all regions of Brazil (North, Northeast, Central-West, Southeast, and South). Clinical and demographic data of patients diagnosed with lip, oral cavity, and oropharyngeal SCC between 2010 and 2019 were collected from the patients’ histopathological records. Of the 120,010 oral and maxillofacial biopsies (2010-2019), 6.9% (8,321 cases) were diagnosed as lip (0.8%, 951 cases), oral cavity (4.9%, 5,971 cases), and oropharyngeal (1.2%, 1,399 cases) SCCs. Most cases were from Brazil’s Southeast (64.5%), where six of the OMPLs analyzed are located. The predominant profile of patients with lip and oral cavity SCC was Caucasian men, with a mean age over 60 years, low schooling level, and a previous history of heavy tobacco consumption. In the oropharyngeal group, the majority were non-Caucasian men, with a mean age under 60 years, had a low education level, and were former/current tobacco and alcohol users. According to data from the Brazilian National Cancer Institute, approximately 9.9% of the total lip, oral cavity, and oropharyngeal SCCs reported over the last decade in Brazil may have been diagnosed at the OMPLs included in the current study. Therefore, this data confirms the contribution of public OMPLs with respect to the important diagnostic support they provide to the oral healthcare services extended by the Brazilian Public Health System.

https://doi.org/10.1590/1807-3107bor-2023.vol37.0126

Risk of urban flash floods in the Guadalajara Metropolitan Area, Mexico
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López, Moises

; Magaña, Victor

; Perez, Tania

Investigaciones geográficas

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2022, N. 108 elocation e60547

Abstract: En Es | Text: En Es | PDF: En | PDF: Es

Abstract The Guadalajara Metropolitan Area (GMA), in western Mexico, has experienced a rapid demographic and urban growth in recent decades. As a result of land use changes, an Urban Heat Island (UHI) has developed and intensified, which reflects not only in air surface temperature increases, but also in higher atmospheric moisture content and more intense precipitation events. Storms have become more frequent since the beginning of 1980s, which makes them one of the major meteorological hazards for the city. Such an increase in strong storms appears to be related to the urbanization process which in turn, has increased the vulnerability of the GMA to intense rains. The urban expansion towards the higher parts of the region has led to more water runoff and flash flood events in the low-level parts of the metropolitan area. An analysis by means of observed meteorological data and a rainfall - runoff model shows that the combined effect of increased precipitation and vulnerability results in a higher risk of urban flash floods. The loss of natural vegetation, the main roads that act as water channels that converge into the central part of the city, an insufficient drainage system and the lack of prevention actions have resulted in more frequent urban flash floods. All these vulnerability factors are associated with an inadequate urban expansion process. The model of flood risk may be used to define adaptation measures to face a changing climate.

Resumen La Zona Metropolitana de Guadalajara (ZMG), en el occidente de México, ha experimentado un rápido crecimiento demográfico y urbano durante las últimas décadas. Como resultado de los cambios en el uso del suelo, se ha desarrollado e intensificado una isla de calor urbano (UHI), que se refleja no solo en aumentos de la temperatura de la superficie del aire, sino también en un mayor contenido de humedad atmosférica y eventos de precipitación más intensos. Las tormentas se han vuelto más frecuentes desde principios de la década de 1980, lo que las convierte en uno de los principales peligros meteorológicos para la ciudad. Este aumento de tormentas fuertes parece estar relacionado con el proceso de urbanización que, a su vez, ha aumentado la vulnerabilidad de la ZMG a las lluvias intensas. Esta expansión hacia las partes más altas de la región ha provocado más escorrentías y eventos de inundaciones repentinas en las partes bajas del área metropolitana. Un análisis por medio de datos meteorológicos observados y un modelo de lluvia-escorrentía muestra que el efecto combinado de mayor precipitación y vulnerabilidad resulta en un mayor riesgo de inundaciones urbanas repentinas. La pérdida de vegetación natural, las vías principales que actúan como canales de agua, que confluyen en la parte central de la ciudad, un sistema de drenaje insuficiente y la falta de acciones de prevención han dado como resultado inundaciones urbanas súbitas más frecuentes. Todos estos factores de vulnerabilidad están asociados a un inadecuado proceso de expansión urbana. El modelo de riesgo de inundaciones puede utilizarse para definir medidas de adaptación para hacer frente a un clima cambiante.

https://doi.org/10.14350/rig.60547 29 downloads

Composition differences between organic and conventional processed foods: a meta-analytical study
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Tavares, Victor de Souza

; Stringheta, Paulo César

; Perez, Ronaldo

; Braga, Gustavo Bastos

; Mendonça, Adriana Corrêa

; Souza, Eliana Carla Gomes de

Ciência Rural

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2022, Volume 52 N. 5 elocation e20210237

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

RESUMO: Frequentemente são encontradas na literatura comparações entre a qualidade nutricional dos alimentos orgânicos e convencionais in natura, no entanto, pouco se discute acerca dos processados. Assim sendo, o objetivo desse estudo foi comparar o teor nutricional dos processados de ambos os sistemas de produção utilizando uma revisão sistemática da literatura e meta-análise, associando a aspectos de manejo das matérias-primas e processamento. Para isso, buscou-se artigos científicos publicados entre 2010 e 2020 e os dados obtidos foram analisados utilizando o método da diferença média padronizada com ajuste de Hedges e modelo analítico aleatório. Trinta e sete artigos foram selecionados, e os alimentos analisados em tais estudos foram agrupados em cinco categorias: cárneos, lácteos, pescado, vinhos e sucos/polpas de frutas. Nos produtos de origem animal o foco comparativo evidenciado foi principalmente o do perfil de ácidos graxos, enquanto nos de origem vegetal foi o dos fitoquímicos. Em relação à comparação do teor de nutrientes, foi possível constatar a similaridade nos orgânicos e nos convencionais na maioria dos estudos, entretanto, diferenças pontuais foram verificadas (P < 0,05): orgânicos com mais proteínas (cárneos), ômega 3 (lácteos) e menos ácido linoleico (lácteos e pescado). Também, notaram-se diferenças no manejo das matérias-primas orgânicas e convencionais, e similaridade no processamento. Portanto, a escolha por alimentos processados orgânicos não deve ser feita exclusivamente baseada em aspectos nutricionais, tendo em vista que as diferenças nos teores dos nutrientes em relação aos convencionais são praticamente inexistentes.

ABSTRACT: Comparisons between the nutritional quality of organic and conventional fresh foods are frequently reported in the literature; however, discussion about processed foods is less frequent. Therefore, this study compared the nutritional content of processed products from both production systems using a systematic review of the literature and meta-analysis, regarding aspects of raw material management and processing. The study reviewed scientific articles published between 2010 and 2020 and the data obtained were analyzed using the standardized mean difference method with Hedges’ adjustment and a random analytical model. Thirty-seven articles were selected, and the foods analyzed in the studies were grouped into five categories: meat products, dairy products, caught fish, wines, and fruit juices/pulps. In products of animal origin, the comparative focus shown was mainly that of the fatty acid profile, while in those of vegetable origin it was that of phytochemicals. Related to the comparison of nutrient contents, it was possible to verify the similarities in organic and conventional products in most studies; however, specific differences were verified (P < 0.05): organics contained more proteins (meat), omega 3 (dairy), and less linoleic acid (dairy and caught fish). Also, there were differences in the management of organic and conventional raw materials, and similarities in processing. Therefore, the choice for organic processed foods should not be made exclusively based on nutritional aspects, considering that the differences in nutrient contents in relation to those of conventional products are practically nonexistent.

https://doi.org/10.1590/0103-8478cr20210237 214 downloads

Análisis temporal de la distribución de Dendroctonus mexicanus Hopkins (1905) en México (2009-2018)
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Perez-Miranda, Ramiro

; González-Hernández, Antonio

; Velasco-Bautista, Efraín

; Romero-Sánchez, Martín Enrique

; Arriola-Padilla, Víctor Javier

; Acosta-Mireles, Miguel

; Carrillo Anzures, Fernando

Revista mexicana de ciencias forestales

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oct 2021, Volume 12 N. 67 Pages 27 - 55

Abstract: En Es | Text: En Es | PDF: En | PDF: Es

Abstract Bark beetles are one of the main agents of forest degradation in Mexico. Within this group, Dendroctonus mexicanus is considered the most aggressive because it affects several pine species every year. This study aimed to analyze the temporal and spatial distribution of this species based on databases from official forest notifications by the Ministry of Natural Resources (Semarnat) in Mexico from 2009 to 2018. The databases were reviewed, analyzed and debugged. The ecological zone (North, Center, and South) on the affected area variable was correlated by using a fixed effects model. During the interval of the years under study, the bark beetle was distributed in 25 Mexican states, mainly in the Western Sierra Madre, the Eastern Sierra Madre and the Transversal Neovolcanic Axis. The years with the highest number of records were from 2012 to 2014, when the beetle was present mainly in mixed pine-oak and oak-pine forests. Nuevo León, Chihuahua, Durango, Zacatecas and Michoacán are the states with had the largest surface areas affected by the beetle. Michoacán, Oaxaca, Durango, the State of Mexico, Nuevo León and Chihuahua had the largest volume of timber affected by the pest. The overall test value of F 2,14 (fixed effects) was 17.99, and the p-value was 0.0001. There are highly significant differences among the three zones analyzed, in regard to the response variable.

Resumen En México, uno de los principales agentes de degradación forestal son los insectos descortezadores; entre ellos, Dendroctonus mexicanus es considerado uno de los más agresivos, ya que cada año afecta a varias especies de pino en México. El presente estudio tuvo como objetivo analizar la distribución temporal y espacial de esta especie, a partir de las bases de datos de las notificaciones forestales oficiales, entregadas a la Secretaría de Recursos Naturales (Semarnat) de 2009 a 2018. Las bases de datos se revisaron, analizaron y depuraron. Se correlacionó la variable área ecológica (norte, centro y sur) en la superficie afectada mediante un modelo de efectos fijos. Durante el intervalo de años en estudio, el escarabajo de la corteza se distribuyó en 25 estados de la república mexicana, principalmente en la Sierra Madre Occidental, Sierra Madre Oriental y Eje Neovolcánico Transversal. Los años con mayor número de registros fueron de 2012 a 2014, con presencia en bosques de pino-encino y encino-pino. Nuevo León, Chihuahua, Durango, Zacatecas y Michoacán tuvieron la mayor superficie afectada por D. mexicanus. Michoacán, Oaxaca, Durango, Estado de México, Nuevo León y Chihuahua fueron las entidades que presentaron una mayor cantidad de madera afectada por la plaga. El valor de la prueba global de F 2,14 (efectos fijos) fue de 17.99, y el valor p fue de 0.0001. Entre las tres zonas analizadas existen diferencias altamente significativas en cuanto a la variable de respuesta.

https://doi.org/10.29298/rmcf.v12i67.1079 60 downloads

Asociación entre el tipo de papila duodenal mayor y canulación biliar difícil en centro terciario privado
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Gutierrez-De Aranguren, Constantino

; Parra-Perez, Victor

; Soto, Alonso

; Ruesta Córdova, Arturo Fernando

; Veramendi-Schult, Isabel

; Hung Quiero, Margarita Paula

; Alba Rodríguez, María Esther

Revista de Gastroenterología del Perú

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jul 2021, Volume 41 N. 3 Pages 169 - 175

Abstract: En Es | Text: En Es | PDF: En | PDF: Es

ABSTRACT Introduction : Difficult cannulation in cases of endoscopic retrograde cholangiopancreatography (ERCP) could be associated with several factors, including: type of major papilla, however, there are limited data regarding this possible association. Objectives : To determine the association between the type of papilla and difficult biliary cannulation. Materials and methods : A retrospective cross-sectional analytical study was conducted in patients over 18 years old who underwent ERCP on papilla naive, from July 2019 to April 2021, in a private institution. Unsuccessful cannulations were excluded. The papilla was classified based on Haraldsson classification. The crude association and adjusted for possible confounders between the type of papilla and difficult cannulation was evaluated. Relative risks (RR) and 95% confidence intervals were calculated. Results : 188 patients were included. The mean age was 55 years, 66% female. The most frequent indication was choledocholithiasis with 88.5%. The most frequent type of major duodenal papilla was type 1 (32%), followed by type 3 (27%), type 2 (25%) and type 4 (16%). Type 2, 3, 4 papillae showed a significant relationship with difficult cannulation compared to type 1 (p<0.001, p<0.001 and p=0.008 respectively). The indication other than choledocholithiasis also showed a significant relationship with difficult cannulation (p<0.001). In the adjusted analysis, the RR for difficult cannulation compared to type 1 papilla was: 2.51 (95% CI 1.23-5.94) for type 2 papilla, 3.72 (95% CI 1.79-7.71) for papilla type 3 and 3.41 (95% CI 1.54-7.71) for type 4. The indication other than choledocholithiasis was also associated with a higher risk of difficult cannulation with a RR of 2.36 (95% CI 1.57-3.56). The fistulotomy type precut was used more frequently in the type 3 papilla (46%), while the use of cannula was more frequent in the type 4 papilla (29.6%). Conclusions : Papilla types 2, 3 and 4 are associated with a higher risk of difficult cannulation. This should be considered when performing ERCP in order to reduce the risk of complications.

RESUMEN Introducción : La canulación difícil en casos de colangiopancreatografía retrógrada endoscópica (CPRE) podría asociarse a diversos factores incluyendo el tipo de papila mayor, sin embargo, existen datos limitados con respecto a esta posible asociación. Objetivos : Determinar la asociación entre el tipo de papila y la canulación biliar difícil. Materiales y métodos : Se realizó un estudio retrospectivo transversal analítico en pacientes mayores de 18 años en quienes se realizó CPRE en papila virgen, de julio 2019 a abril 2021, en una institución privada. Se excluyeron las canulaciones frustras. La papila fue clasificada en base a la clasificación de Haraldsson. Se evaluó la asociación cruda y ajustada a posibles confusores entre el tipo de papila y canulación difícil. Se calcularon los riesgos relativo (RR) e intervalos de confianza al 95%. Resultados : Se incluyeron 188 pacientes. La edad media fue 55 años, el 66% de sexo femenino. La indicación más frecuente fue coledocolitiasis con 88,5%. El tipo de papila duodenal mayor más frecuente fue el tipo 1 (32%), seguido de tipo 3 (27%), tipo 2 (25%) y tipo 4 (16%). Las papilas tipo 2, 3, 4 presentaron una relación significativa con canulación difícil comparadas con la tipo 1 (p<0,001, p<0,001 y p=0,008 respectivamente). La indicación diferente a coledocolitiasis también mostró una relación significativa con canulación difícil (p<0,001). En el análisis ajustado, El RR para canulación difícil en comparación con la papila tipo 1 fue: de 2,51 (IC 95% 1,23-5,94) para la papila tipo 2, 3,72 (IC 95% 1,79-7,71) para la papila tipo 3 y 3,41 (IC 95% 1,54-7,71) para la tipo 4. La indicación distinta a la coledocolitiasis también se asoció a un mayor riesgo de canulación difícil con un RR de 2.36 (IC95% 1,57-3,56). El precorte tipo fistulotomía fue usado con mayor frecuencia en la papila tipo 3 (46%) mientras que el uso de canulótomo fue más frecuente en la papila tipo 4 (29,6%). Conclusiones : Los tipos de papila 2, 3 y 4, están asociados a mayor riesgo de canulación difícil. Ello debe ser considerado al momento de realizar la CPRE a fin de reducir el riesgo de complicaciones.

https://doi.org/10.47892/rgp.2021.413.1255

10.

COVID-19 pandemic accelerated virtual transformation in dental education: a multicenter review of remote teaching and teledentistry
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FERNÁNDEZ, Constanza E.

; SIGUA-RODRIGUEZ, Eder A.

; VERGARA-HERNÁNDEZ, Clara I.

; TORAL-RIZO, Victor H.

; TELLO, Gustavo

; MADRID TROCONIS, Cristhian C.

; PEREZ PUELLO, Sthefanie

; ROQUE-TORRES, Gina D.

RGO - Revista Gaúcha de Odontologia

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2021, Volume 69 elocation e20210029

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

RESUMO Embora antes da pandemia houvesse alguma resistência à virtualização da educação odontológica, a pandemia COVID-19 está nos fornecendo uma oportunidade única de superar várias barreiras que anteriormente bloqueavam a adoção do ensino à distância e teledontologia. Graças à ampla disponibilidade de telecomunicações, tecnologias digitais e plataformas, a educação à distância e a teledontologia parecem ser a escolha preferida para manter a educação odontológica e o atendimento ativo aos pacientes durante a pandemia, sem riscos de contaminação. Neste artigo, revisamos estratégias válidas de educação a distância e possíveis alternativas úteis na transformação virtual na educação odontológica. Além disso, o papel do teleodontologia e suas vantagens, assim como também os desafios. No atual contexto pandêmico, como educadores odontológicos, somos chamados a ser criativos e flexíveis. Cada escola de odontologia deve se adaptar e usar a educação à distância, tanto quanto possível, até que a atenção clínica possa ser readotada. As evidências apresentadas nesta revisão corroboram nossa posição de que, sob esta pandemia, a educação a distância e a telemedicina / teleodontologia podem ser “a solução virtual conveniente”, para adaptar e aprimorar a forma até então clássica de ensino de odontologia, agora por meio da teleducação.

ABSTRACT Although prior to the pandemic there was some resistance to the virtualization of dental education, the COVID-19 pandemic is providing us a unique opportunity to overcome several barriers that previously blocked the adoption of remote teaching and teledentistry. Thanks to the extended availability of telecommunications, digital technologies, and platforms, remote education and teledentistry appear to be the preferred choice to maintain dental education and patient care active under this pandemic, without contamination risks. In this paper, we review valid remote education strategies and possible alternatives useful in virtual transformation in dental education. Furthermore, the role of teledentistry and its advantages and challenges are also revised. Under the current pandemic context, as dental educators, we are called to be creative and flexible. Every dental school should adapt and use remote education as much as possible until clinical attention can be readopted. The evidence presented in this review supports our position that under this pandemic, remote education and telemedicine/teledentistry may be “the virtual convenient solution”, to adapt and improve the hitherto classic way of teaching dentistry through tele-education.

https://doi.org/10.1590/1981-86372021002920200171 170 downloads

11.

Impact of organic certification on the price of ready-to-drink fruit nectars and juices
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TAVARES, Victor de Souza

; PEREZ, Ronaldo

; STRINGHETA, Paulo César

; BRAGA, Gustavo Bastos

Food Science and Technology

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2021, Volume 41 N. 2 Pages 395 - 403

Abstract: En | Text: En | PDF: En

Abstract Several studies indicate that the consumer market considers the price of organic foods to be significantly high and attribute this fact as one of the main restrictive aspects for starting the consumption of organic foods or even increasing their frequency. Given this scenario, the present study is proposed as a way to confirm such a perception. Therefore, the purpose of the study is to evaluate if the price of organic is higher than conventional in the market of ready-for-consumption juices and nectars, using samples collected in Brazil and France. For this, the hedonic price methodology was applied, using as variables the information described on ready-to-drink processed juices/nectars marketed in Brazil and France. The results of the study confirm that organic version is more expensive, with the price being approximately 50% higher in the Brazilian market, and 10% higher in France. Additional attributes, such as type of packaging, pulp content, and flavor, are also relevant for the price. This is believed to be the first study to evaluate the impact on price of the organic certification of ready-for-consumption juices and nectars in different consumer markets.

https://doi.org/10.1590/fst.01920 232 downloads

12.

Predictive Factors of Mortality in Acute Aortic Dissection and Validity of the EuroSCORE Algorithm in a Small-Sized Cardiac Surgery Institution
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Rios, Facundo

; Perez, Diego

; Soca, Gerardo

; Robaina, Ricardo

; Dayan, Victor

Brazilian Journal of Cardiovascular Surgery

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dec 2020, Volume 35 N. 6 Pages 878 - 883

Abstract: En | Text: En | PDF: En

Abstract Introduction: Acute aortic dissection (AAD) is a devastating surgical emergency, with high operative mortality. Several scoring algorithms have been used to establish the expected mortality in these patients. Our objective was to define the predictive factors for mortality in our center and to validate the EuroSCORE and Penn classification system. Methods: Patients who underwent surgery for AAD from 2006 to 2016 were retrieved from the institution’s database. Preoperative, operative and postoperative variables were collected. Observed and expected mortality was calculated by EuroSCORE. Logistic regression analysis and Cox regression analysis were performed to find predictors of operative mortality and survival, respectively. The receiver operating characteristic (ROC) curves were plotted for logistic EuroSCORE, and the area under the ROC curve (AUC) was calculated. Results: 87 patients (27.6% female) underwent surgery for AAD. The mean age was 58.6±9.7 years. Expected and observed operative mortality was 25.8±15.1% and 20.7%, respectively. Penn Aa, Ab and Abc shared similar observed/expected (O/E) mortality ratio. The only independent predictor of operative mortality (OR: 3.63; 95% CI: 1.19-11.09) and survival (HR: 2.6; 95% CI: 1.5-4.8) was female gender. EuroSCORE showed a very poor prediction capacity, with an AUC=0.566. Conclusion: Female gender was the only independent predictor of operative mortality and survival in our institution. EuroSCORE is a poor scoring algorithm to predict mortality in AAD, but with consistent results for Penn Aa, Ab and Abc.

https://doi.org/10.21470/1678-9741-2020-0053 285 downloads

13.

Systemic Lithium Chloride Administration Improves Tooth Extraction Wound Healing in Estrogen-Deficient Rats
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Duarte, Poliana M.

; Miranda, Tamires S.

; Marins, Letícia M.

; Perez, Erick G.

; Copes, Liliana G.

; Tonietto, Cristine B.

; Montalli, Victor A. M.

; Malta, Fernando S.

; Napimoga, Marcelo H.

Brazilian Dental Journal

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nov 2020, Volume 31 N. 6 Pages 640 - 649

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

Resumo O objetivo deste estudo foi avaliar os efeitos do Cloreto de Lítio (ClLi) na cicatrização de alvéolos de ratas deficientes em estrogênio. Setenta e duas ratas foram alocadas em um dos seguintes grupos: Controle, Ovariectomia e Cloreto de Lítio (150mg/kg/ oralmente a cada 2 dias) + ovarectomia. Os animais receberam ClLi ou água a partir do 14º dia pós-ovariectomia, até a conclusão do experimento. No 21º dia após a ovariectomia, os primeiros molares foram extraídos. As ratas foram sacrificadas nos dias 10, 20 e 30 após extrações. Foram avaliadas a cicatrização óssea (BH), células positivas para TRAP e coloração imuno-histoquímica para OPG, RANKL, BSP, OPN e OCN. O grupo Ovariectomia apresentou BH diminuída em comparação ao grupo LiCl aos 10 dias e a menor BH aos 20 dias (p<0,05). Aos 30 dias, os grupos Ovariectomia e LiCl apresentaram menor BH do que o Controle (p<0,05). O número de células positivas para TRAP foi menor no grupo ClLi em 20 dias e o maior no grupo Ovariectomia em 30 dias (p<0,05). Aos 10 dias de cicatrização, o grupo ClLi demonstrou imunomarcação mais intensa em todos os marcadores testados quando comparado aos outros grupos, enquanto o grupo Ovariectomia apresentou maior expressão de RANKL do que a do controle (p<0,05). O ClLi melhorou a cicatrização óssea em ratos com deficiência de estrogênio, particularmente nas fases iniciais do reparo. No entanto, como os dados sobre os efeitos do cloreto de lítio no tecido ósseo ainda são preliminares, mais estudos relacionados à sua toxicidade e protocolo de administração são necessários antes de sua aplicação na prática clínica.

Abstract The purpose of this investigation was to evaluate the effects of lithium chloride (LiCl) on the socket healing of estrogen-deficient rats. Seventy-two rats were allocated into one of the following groups: Control, Ovariectomy and LiCl (150 mg/kg/2 every other day orally) + Ovariectomy. Animals received LiCl or water from the 14th day post-ovariectomy, until the completion of the experiment. On the 21st day after ovariectomy, the first molars were extracted. Rats were euthanized on the 10th, 20th and 30th days following extractions. Bone healing (BH), TRAP positive cells and immunohistochemical staining for OPG, RANKL, BSP, OPN and OCN were evaluated. The Ovariectomy group presented decreased BH compared to the LiCl group at 10 days, and the lowest BH at 20 days (p<0.05). At 30 days, the Ovariectomy and LiCl-groups presented lower BH than that of the Control (p<0.05). The number of TRAP-stained cells was the lowest in the LiCl group at 20 days and the highest in the Ovariectomy group at 30 days (p<0.05). At 10 days of healing, the LiCl group demonstrated stronger staining for all bone markers when compared to the other groups, while the Ovariectomy group presented higher RANKL expression than that of the Control (p<0.05). LiCl enhanced bone healing in rats with estrogen deficiency, particularly in the initial healing phases. However, as data on the effects of lithium chloride on bone tissue are still preliminary, more studies related to its toxicity and protocol of administration are necessary before its application in clinical practice.

https://doi.org/10.1590/0103-6440202003595 733 downloads

14.

Strategies and operational procedures in oral radiology to mitigate potential SARS-CoV-2 transmission
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Roque-Torres, Gina Delia

; Toral Rizo, Victor

; Fernández, Constanza E.

; Madrid Troconis, Cristian Camilo

; Sigua-Rodriguez, Eder Alberto

; Perez Puello, Stephanie

; Tello Melendez, Gustavo

Revista Estomatológica Herediana

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oct 2020, Volume 30 N. 4 Pages 245 - 253

Abstract: En Es | Text: En Es | PDF: En | PDF: Es

SUMMARY Coronavirus disease (COVID-19) is highly transmissible through respiratory droplets, saliva, and aerosol particles. Infection can lead to severe acute respiratory syndrome and trigger multi-organ failure and death. Most clinical dental procedures involve contact with saliva or the generation of aerosols with saliva and blood. These airborne particles increase the risk of transmission by COVID-19 between dentists and patients. Thus, dentistry must adopt procedures to reduce transmission during dental procedures. Although these strategies may not be directly applicable to all institutions due to cultural, social, geographical, and economic differences, the underlying principles and implemented strategies remain relevant and can be adopted or modified by the institutions dealing with the current COVID-19 outbreak. The purpose of this article is to discuss one of the principal sources of COVID-19 transmission: saliva, the biofluid most frequently handled in a radiology environment. The authors also recommend strategies and operational procedures to decrease the spread of COVID-19 in a radiological routine.

RESUMEN La enfermedad por coronavirus (COVID-19) se transmite fácilmente a través de gotitas respiratorias, saliva y partículas de aerosol. La infección puede desencadenar un síndrome respiratorio agudo severo, insuficiencia multiorgánica y, en algunos casos, la muerte. Los procedimientos clínicos dentales determinan el contacto con saliva o la generación de aerosoles con saliva y sangre, lo que implica un alto riesgo de transmisión por COVID-19 entre odontólogos y pacientes. Por ello, la práctica odontologica debe adoptar medidas para detener la propagación durante los procedimientos dentales. En este artículo se revisan las estrategias para mitigar el riesgo de transmisión de COVID-19. Si bien estas estrategias pueden no ser directamente aplicables a todas las instituciones debido a diferencias culturales, sociales, geográficas y económicas inherentes, los principios subyacentes y las estrategias implementadas siguen siendo relevantes y pueden ser adoptados o modificados por las instituciones que se ocupan del brote actual de COVID-19. El propósito de este artículo es discutir una de las principales fuentes de transmisión de COVID-19: la saliva, el biofluido que se maneja con mayor frecuencia en un entorno radiológico. Los autores también recomiendan estrategias y procedimientos operativos para disminuir la propagación de COVID-19 en una rutina radiológica.

https://doi.org/10.20453/reh.v30i4.3877

15.

Estructura factorial de la versión mexicana del Inventario de Depresión de Beck II en población general del sureste mexicano
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ROSAS-SANTIAGO, FRANCISCO JAVIER

; RODRÍGUEZ-PEREZ, VÍCTOR

; HERNÁNDEZ-AGUILERA, ROSA DIANETH

; LAGUNES-CÒRDOBA, ROBERTO

Revista Salud Uninorte

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aug 2020, Volume 36 N. 2 Pages 436 - 449

Abstract: Es En | Text: Es En | PDF: Es | PDF: En

RESUMEN Objetivo: Determinar la estructura factorial del cuestionario BDI-II en población abierta del sureste de México. Método: Se recolectaron aplicaciones del BDI-II en una muestra de 3701 habitantes del municipio de Oaxaca de Juárez de siete colonias diferentes. Se describen las características generales de la población y se contrasta el ajuste de la estructura a los datos de la muestra con cinco estructuras factoriales propuestas en estudios de validación psicométrica anteriores por medio del análisis factorial confirmatorio. Así mismo, se determinó la confiabilidad total de la prueba. Resultados: El análisis confirmatorio muestra que los datos se ajustan a la estructura teórica propuesta por Beck, Steer y Brown con dos modificaciones. Las otras estructuras analizadas tienen índices de ajuste menos satisfactorios. La confiabilidad total de la prueba fue de .92. Discusión y conclusión: Se discuten algunas razones por las cuales los resultados de este trabajo difieren de los reportados en investigaciones anteriores y la importancia del análisis psicométrico adecuado para pruebas utilizadas en distintas poblaciones de estudio.

ABSTRACT Objective: To determine the factorial structure of the BDI-II questionnaire in the open population of southeastern Mexico. Method: BDI-II applications were collected in a sample of 3,701 inhabitants of the municipality of Oaxaca de Juarez from seven different colonies. The general characteristics of the population are described and the adjustment of the structure to the data of the sample is contrasted with five factorial structures proposed in previous psychometric validation studies by means of confirmatory factor analysis. Likewise, the total reliability of the test was determined. Results: The confirmatory analysis shows that the data conform to the theoretical structure proposed by Beck, Steer and Brown with two modifications. The other structures analyzed have less satisfactory adjustment indices. The total reliability of the test was .92. Discussion and conclusion: We discuss some reasons why the results of this work differ from those reported in previous research and the importance of adequate psychometric analysis for tests used in different study populations.

https://doi.org/10.14482/sun.36.2.616.85 362 downloads

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