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Identification of Polymorphism in the MC1R Gene and Its Association with the Melanin Content in Feathers of Chinese Yellow Quails MCR MC R
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Qi, Y

; Zhang, X

; Pang, Y

; Yuan, B

; Cheng, J

Brazilian Journal of Poultry Science

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2023, Volume 25 Nº 2 elocation eRBCA-2022-1648

Resumo: En | Texto: En | PDF: En

ABSTRACT MC1R plays a crucial role in controlling the type of melanin synthesized in the melanocytes, which greatly affects plumage color in birds. One g.16796362G/T SNP was found in the MC1R gene coding region, which caused a Met120Ile mutation in the amino acid sequence. The Met120Ile mutation was located in the third transmembrane domain of the MC1R protein and decreased protein stability. The g.16796362G/T locus achieved medium polymorphism and had significant association with feather melanin content in Chinese yellow quails. The contents of total melanin and pheomelanin with AA genotype were significant lower than those with AB or BB genotypes in skin tissues, while the expression levels of MC1R mRNA had no significant difference in feathers with different genotypes. This experiment indicated that the Met120Ile mutation could affect the function of the MC1R protein and change the biosynthesis of melanin in Chinese yellow quails. MCR MC R melanocytes birds g16796362GT gGT g 16796362G T G region MetIle Met Ile sequence stability quails tissues GT

https://doi.org/10.1590/1806-9061-2022-1648

Study on the antioxidant activity of β-sitosterol and stigmasterol from Sacha Inchi oil and Prinsepia oil added to walnut oil
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CHENG, Qin

; ZHANG, Yuejiang

; LIN, Qi

; TIAN, Yang

; BAO, Yuanyuan

Food Science and Technology

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2022, Volume 42 elocation e69522

Resumo: En | Texto: En | PDF: En

Abstract The qualitative and quantitative sterol compositions of Sacha Inchi oil and Prinsepia oil were analysed by high-performance liquid chromatography (HPLC). The sterol compounds were mixed with citric acid, VE and other natural antioxidants and added to walnut oil, oxidation resistence was determined by the peroxide value and acid value. Gas chromatography/mass spectrometry (GC/MS) analysis was used to measure the fatty acids. The results showed that the content of β-sitosterol and stigmasterol in Sacha Inchi oil was 156.46 mg/100 g and 68.74 mg/100 g, Prinsepia oil was 176.26 mg/100 g and 38.29 mg/100 g, respectively. After 12 days of accelerated oxidation, the antioxidant effect was TBHQ > compound antioxidants > BHA > sterols of Sacha Inchi oil > sterols of Prinsepia oil > 30% Prinsepia oil > citric acid > VE. After accelerated oxidation for 48 h, the total unsaturated fatty acids in blank walnut oil showed a decreasing trend, and the antioxidant group inhibited the decrease in total unsaturated fatty acids. In conclusion, the antioxidant treatment groups can delay the oxidative cycle of walnut oil and effectively prolong the shelf life of walnut oil, and the compound groups can significantly enhance the antioxidant effect of walnut oil. This study provides a technical reference for the storage stability of walnut oil.

https://doi.org/10.1590/fst.69522

Saúde Cardiovascular e Fibrilação ou Flutter Atrial: Um Estudo Transversal do ELSA-Brasil
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Santos, Itamar S.

; Lotufo, Paulo A.

; Goulart, Alessandra C.

; Brant, Luisa C. C.

; Pinto Filho, Marcelo M

; Pereira, Alexandre C.

; Barreto, Sandhi M.

; Ribeiro, Antonio L. P.

; Thomas, G Neil

; Lip, Gregory Y. H.

; Bensenor, Isabela M.

; Arasalingam, Ajini

; Beane, Abi

; Bensenor, Isabela M

; Brocklehurst, Peter

; Cheng, Kar Keung

; El-Bouri, Wahbi

; Feng, Mei

; Goulart, Alessandra C

; Greenfield, Sheila

; Guo, Yutao

; Guruparan, Mahesan

; Gusso, Gustavo

; Gooden, Tiffany E

; Haniffa, Rashan

; Humphreys, Lindsey

; Jolly, Kate

; Jowett, Sue

; Kumarendran, Balachandran

; Lancashire, Emma

; Lane, Deirdre A

; Li, Xuewen

; Lip (Co-PI), Gregory Y.H.

; Li, Yan-guang

; Lobban, Trudie

; Lotufo, Paulo A

; Manseki-Holland, Semira

; Moore, David J

; Nirantharakumar, Krishnarajah

; Olmos, Rodrigo D

; Paschoal, Elisabete

; Pirasanth, Paskaran

; Powsiga, Uruthirakumar

; Romagnolli, Carla

; Santos, Itamar S

; Shantsila, Alena

; Sheron, Vethanayagam Antony

; Shribavan, Kanesamoorthy

; Szmigin, Isabelle

; Subaschandren, Kumaran

; Surenthirakumaran, Rajendra

; Tai, Meihui

; Neil Thomas (Co-PI), G

; Varella, Ana C

; Wang, Hao

; Wang, Jingya

; Zhang, Hui

; Zhong, Jiaoyue

Arquivos Brasileiros de Cardiologia

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2022, Nº ahead

Resumo: Pt En | Texto: Pt En | PDF: Pt | PDF: En

Resumo Fundamento A associação entre o status de saúde cardiovascular ideal ( ideal cardiovascular health ( ICVH) e diagnóstico de fibrilação ou flutter atrial (FFA) foi menos estudado em comparação a outras doenças cardiovasculares. Objetivos Analisar a associação entre o diagnóstico de FFA e métricas e escores de ICVH no Estudo Longitudinal de Saúde do Adulto (ELSA-Brasil). Métodos Este estudo analisou dados de 13141 participantes com dados completos. Os traçados eletrocardiográficos foram codificados de acordo com o Sistema de Minnesota, em um centro de leitura centralizado. As métricas do ICVH (dieta, atividade física, índice de massa corporal, tabagismo, glicemia de jeju, e colesterol total) e escores do ICVH foram calculados conforme proposto pela American Heart Association . Modelos de regressão logística bruta e ajustada foram construídos para analisar associações de métricas e escores do ICVH com diagnóstico de FFA. O nível de significância foi estabelecido em 0,05. Resultados A idade mediana da amostra foi de 55 anos, e 54,4% eram mulheres. Nos modelos ajustados, os escores de ICVH não apresentaram associação significativa com diagnóstico de FFA prevalente [odds ratio (OR):0,96; intervalo de confiança de 95% (IC95%):0,80-1,16; p=0,70). Perfis de pressão arterial ideal (OR:0,33; IC95%:0,1-0,74; p=0,007) e colesterol total ideal (OR:1,88; IC95%:1,19-2,98; p=0,007) foram significativamente associados com o diagnóstico de FFA. Conclusões Não foram identificadas associações significativas entre escores de ICVH global e diagnóstico de FFA após ajuste multivariado em nossas análises, devido, ao menos em parte, às associações antagônicas da FFA com métricas de pressão arterial e de colesterol total do ICVH. Nossos resultados sugerem que estimar a prevenção da FFA por meio de escore de ICVH global pode não ser adequado, e as métricas do ICVH devem ser consideradas separadamente.

Abstract Background The association between ideal cardiovascular health (ICVH) status and atrial fibrillation or flutter (AFF) diagnosis has been less studied compared to other cardiovascular diseases. Objective To analyze the association between AFF diagnosis and ICVH metrics and scores in the Brazilian Longitudinal Study of Adult Health (ELSA-Brasil). Methods This study analyzed data from 13,141 participants with complete data. Electrocardiographic tracings were coded according to the Minnesota Coding System, in a centralized reading center. ICVH metrics (diet, physical activity, body mass index, smoking, blood pressure, fasting plasma glucose, and total cholesterol) and scores were calculated as proposed by the American Heart Association. Crude and adjusted binary logistic regression models were built to analyze the association of ICVH metrics and scores with AFF diagnosis. Significance level was set at 0.05. Results The sample had a median age of 55 years and 54.4% were women. In adjusted models, ICVH scores were not significantly associated with prevalent AFF diagnosis (odds ratio [OR]:0.96; 95% confidence interval [95% CI]:0.80-1.16; p=0.70). Ideal blood pressure (OR:0.33; 95% CI:0.15–0.74; p=0.007) and total cholesterol (OR:1.88; 95% CI:1.19–2.98; p=0.007) profiles were significantly associated with AFF diagnosis. Conclusions No significant associations were identified between global ICVH scores and AFF diagnosis after multivariable adjustment in our analyses, at least partially due to the antagonistic associations of AFF with blood pressure and total cholesterol ICVH metrics. Our results suggest that estimating the prevention of AFF burden using global ICVH scores may not be adequate, and ICVH metrics should be considered in separate.

https://doi.org/10.36660/abc.20210970

Comparison of tooth movement and biological response resulting from different force magnitudes combined with osteoperforation in rabbits
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HUANG, Cheng-Yi

; LU, Hai-Ping

; YU, Yu-Feng

; DING, Xi

; ZHANG, Zan-Zan

; ZHANG, Jia-Nan

Journal of Applied Oral Science

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2021, Volume 29 elocation e20200734

Resumo: En | Texto: En | PDF: En

Abstract Objective To compare tooth movement rate and histological responses with three different force magnitude designs under osteoperforation in rabbit models. Methodology 48 rabbits were divided into three groups: Group A, Group B, and Group C, with traction force of 50 g, 100 g, 150 g, respectively. Osteoperforation was performed at the mesial of the right mandibular first premolar, the left side was not affected. One mini-screw was inserted into bones between two central incisors. Coil springs were fixed to the first premolars and the mini-screw. Tooth movement distance was calculated, and immunohistochemical staining of PCNA, OCN, VEGF, and TGF-β1 was analyzed. Results The tooth movement distance on the surgical side was larger than the control side in all groups (P<0.01). No significant intergroup difference was observed for the surgical side in tooth movement distance among the three groups (P>0.05). For the control side, tooth movement distance in Group A was significantly smaller than Groups B and C (P<0.001); no significant difference in tooth movement distance between Group B and Group C was observed (P>0.05). On the tension area of the moving premolar, labeling of PCNA, OCN, VEGF and TGF-β1 were confirmed in alveolar bone and periodontal ligament in all groups. PCNA, OCN, VEGF and TGF-β1 on the surgical side was larger than the control side in all groups (P<0.001). Conclusion Osteoperforation could accelerate orthodontic tooth movement rate in rabbits. Fast osteoperforation-assisted tooth movement in rabbits was achieve with light 50 g traction.

https://doi.org/10.1590/1678-7757-2020-0734 558 downloads

Phylogenetic and Pathotypic Characterization of a Newcastle Disease Virus Strain Isolated from Ducks and Pigeons in Hubei, China
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Wang, Y

; Zhang, H

; Gu, C

; Cheng, G

; Zhang, W

; Mehmood, K

; Hu, X

Brazilian Journal of Poultry Science

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Mar 2018, Volume 20 Nº 1 Páginas 145 - 152

Resumo: En | Texto: En | PDF: En

ABSTRACT Newcastle disease is a highly contagious disease responsible for major outbreaks and considerable economic losses in the poultry industry in China. There is still little information available regarding gene characterization of the NDV, especially in ducks and pigeons. Therefore, the aim of this study was to investigate NDV isolated from ducks and pigeons in Hubei, China. In this study, three NDVs from ducks and pigeons were isolated between 2013 and 2015.The fusion protein (F) gene of the NDV isolates was sequenced and phylogenetically analyzed. The clinical signs and gross histopathological lesions were examined. Phylogenetic analysis of these strains indicated that all the sequences are classified as genotype II. The isolates shared a 112 G-R-Q-G-R-L 117motif at the F protein cleavage site, indicating that these three isolates strains are lentogenic. Necropsy and histopathology showed the typical pathological changes. It was concluded that commercial ducks and pigeons in Hubei province carry lentogenic NDV strains with regular genetic divergence, indicating that these species may act as the main reservoirs of NDV in poultry. Therefore, strategies and surveillance should be undertaken to reduce the risk of ND outbreaks.

https://doi.org/10.1590/1806-9061-2016-0459 1191 downloads

Pollutant removal in subsurface wastewater infiltration systems with/without intermittent aeration under different organic pollutant loadings
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Fei, Hexin

; Tong, Deli

; Pan, Jing

; Zhang, Yang

; Huang, Linli

; Cheng, Fan

; Zheng, Fanping

Water SA

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Out 2016, Volume 42 Nº 4 Páginas 595 - 600

Resumo: En | Texto: En | PDF: En

Organic pollutant and nitrogen removal performance of subsurface wastewater infiltration systems (SWISs) with and without intermittent aeration, and operated under different organic pollutant loadings, was investigated. The intermittent aeration strategy not only significantly increased removal rates of organic pollutants and NH4+-N, but also successfully created aerobic conditions at a depth of 50 cm and did not change anoxic or anaerobic conditions at a depth of 80 and 110 cm, resulting in high TN removal. Increasing organic pollutant loading did not affect the removal of organic pollutants and nitrogen in intermittent aerated SWISs. High removal rates of COD (98.0%~98.4%), NH4+-N (93.8%~98.1%) and TN (84.5%~94.0%) were simultaneously obtained in intermittent aerated SWISs for organic pollutant loadings ranging from 7.4 to 29.1 g COD/(m²∙d), and these removal rates were significantly higher than for non-aerated SWISs. The results suggest that intermittent aeration is a reliable option to achieve high nitrogen removal in SWISs, especially with high organic pollutant loading.

https://doi.org/10.4314/wsa.v42i4.09 397 downloads

Effects of calcium to non-phytate phosphorus ratio and different sources of vitamin D on growth performance and bone mineralization in broiler chickens
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Han, Jincheng

; Wang, Jianguo

; Chen, Guanhua

; Qu, Hongxia

; Zhang, Jinliang

; Shi, Chuanxin

; Yan, Yongfeng

; Cheng, Yeonghsiang

Revista Brasileira de Zootecnia

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Jan 2016, Volume 45 Nº 1 Páginas 1 - 7

Resumo: En | Texto: En | PDF: En

ABSTRACT - A 7 × 2 factorial experiment was designed to test the effects of calcium (Ca) to non-phytate phosphorus (NPP) ratio (1.14, 1.43, 1.71, 2.00, 2.29, 2.57, and 2.86) and different sources of vitamin D (1α-hydroxycholecalciferol (1α-OH-D3) and 25-hydroxycholecalciferol (25-OH-D3)) on growth performance and bone mineralization in 1- to 42-d-old broiler chickens. On the day of hatch, 700 female Ross 308 broilers were weighed and randomly assigned to 14 treatments with five stainless steel cages of 10 birds each. Dietary Ca levels were 4.0, 5.0, 6.0, 7.0, 8.0, 9.0, and 10.0 g kg−1 and the NPP content was 3.5 g kg−1. The dose of 1α-OH-D3 or 25-OH-D3 was 5 µg kg−1. Diets were not supplemented with cholecalciferol (vitamin D3). Results showed that the Ca to NPP ratio, vitamin D source, and their interaction affected body weight gain (BWG), feed intake (FI), feed efficiency (FE), and carcass and breast yields, as well as tibia weight and length and ash weight in broiler chickens from 1 to 42 d of age. Broilers fed 1α-OH-D3 had higher BWG and FI as well as tibia breaking strength, weight, length, diameter, and ash weight than birds fed 25-OH-D3 at 42 d of age. The Ca to NPP ratio had a quadratic effect on BWG, FI, mortality, as well as tibia breaking strength, weight, length, ash weight, and ash and P contents in 42-d-old broilers. Broiler chickens at 42 d of age obtain optimal growth performance and bone mineralization at the Ca to NPP ratio of 2.32 when 1α-OH-D3 or 25-OH-D3 are used as the vitamin D source.

https://doi.org/10.1590/S1806-92902016000100001 2501 downloads

SYNTHESIS, CRYSTAL STRUCTURES AND PRELIMINARY ANTIBACTERIAL ACTIVITIES OF NICKEL(II) AND ZINC(II) COMPLEXES DERIVED FROM 2-BROMO-6-[(3-CYCLOHEXYLAMINOPROPYLIMINO) METHYL]PHENOL
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LI, WEI

; DING, YI

; CHENG, XIAO-SHAN

; YOU, ZHONGLU

Journal of the Chilean Chemical Society

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Set 2015, Volume 60 Nº 3 Páginas 3034 - 3037

Resumo: En | Texto: En | PDF: En

Two centrosymmetric mononuclear nickel(II) and zinc(II) complexes, [NiL2]-2NO3 (1) and [ZnL2(dca)2] (2), where L is the zwitterionic form of 2-bromo-6-[(3-cyclohexylaminopropylimino)methyl]phenol, and dca is the dicyanamide anion, have been synthesized. The complexes have been characterized by physico-chemical methods and single crystal X-ray determination. Complex (1) crystallizes in the monoclinic space group P2Jn with unit cell dimensions a = 7.0091(7) Å, b = 11.137(1) Å, c = 23.997(2) Å, β = 97.390(3)°, V = 1857.7(3) Å³, Z = 2, R1 = 0.0617, and wR2 = 0.1632. Complex (2) crystallizes in the triclinic space group P-1 with unit cell dimensions a = 8.762(1) Å, b = 10.386(1) Å, c = 10.687(2) Å, α = 85.209(2)°, β = 83.931(2)°, g = 88.734(2)°, V = 963.6(2) Å³, Z = 1, R1 = 0.0374, and wR2 = 0.0873. The Ni atom in (1) is in a square planar geometry, and the Zn atom in (2) is in an octahedral geometry. The preliminary antibacterial activities of the complexes were assayed.

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Purification of metallo-B-lactamase CcrA from Bacteroides fragilis with salting-out method
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Liu, Cheng-Cheng

; Zhai, Le

; Shi, Ying

; Yang, Ke-Wu

Brazilian Archives of Biology and Technology

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Out 2013, Volume 56 Nº 5 Páginas 811 - 816

Resumo: En | Texto: En | PDF: En

A simple and effective salting-out method was developed for the purification of the metallo-β-lactamase CcrA from Bacteroides fragilis based on the plasmid pMSZ02, in which the crude protein secreted into growth medium was precipitated by 80% sulfate saturation of the medium and purified with Q-Sepharose to offer pure CcrA with yield of 20.1 mg per litter medium. The dependence of the amount of protein precipitation on sulfate saturation was investigated, which showed that more than 80% sulfate saturation resulted the maximum protein precipitated. The purified CcrA was evaluated by steady-state kinetics using penicillin G and cephalothin V as substrates, which showed the Km values of 68±2 and 17±2 µM and Kcat values of 63±1 and 102±3 S-1, respectively. The comparison with the data of the protein from literature method showed that the salting-out method was viable, and it could be useful for the purification of other proteins secreted into growth medium.

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Association between AA-NAT gene polymorphism and reproductive performance in sheep
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Ding-ping, Bai

; Cheng-jiang, Yu

; Yu-lin, Chen

Electronic Journal of Biotechnology

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Mar 2012, Volume 15 Nº 2 Páginas 7 - 7

Resumo: En | Texto: En | PDF: En

Arylalkylamine N-acetyltransferase (AA-NAT) is critical enzyme in Melatonin (MLT) biosynthesis for MLT regulating the animal seasonal breeding. In this study, DNA sequencing methods were applied to detect the polymorphisms of the AA-NAT gene in 179 Chinese sheep belonging to two non-seasonal reproduction breeds and two seasonal reproduction breeds. One mutation at exon 3 (NM_001009461:c.486A > G) was ﬁrstly described at the sheep AA-NAT locus. Hence, we described the SmaI PCR-RFLP method for detecting EX3 486A > G mutation, frequencies of the AA-NAT-G allele varied from 0.871 to 0.908 in two non-seasonal reproduction breeds and 0.517 to 0.578 in two seasonal reproduction breeds. The associations of SmaI polymorphism with estrus traits was analyzed in non-seasonal reproduction breeds sheep and seasonal reproduction breeds sheep, the signiﬁcant statistical results were found between them, the GG genotype frequencies was higher in non-seasonal reproduction breeds (p < 0.001), while, the GA genotype frequencies was higher in seasonal reproduction breeds (p < 0.05). Hence, the EX3 486A > G mutation could facilitate association analysis and serve as a genetic marker for Chinese sheep breeding and genetics.

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