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Print version ISSN 0365-0596
An. Bras. Dermatol. vol.87 no.1 Rio de Janeiro Jan./Feb. 2012
Papillary atrophy of the tongue and nutritional status of hospitalized alcoholics *
Glossite atrófica e estado nutricional de alcoolistas hospitalizados
Selma Freire de Carvalho da CunhaI; Daniel Angelo de MeloII; Camila Bitu Moreno BragaIII; Helio VannucchiIV; Daniel Ferreira da CunhaV
IPhD in Internal Medicine - Doctor Professor at the Internal Medicine Department of the Medical School of Ribeirão Preto of the Universidade de São Paulo (FMRP-USP) - São Paulo (SP), Brasil
IIPhysician - Resident in Cardiology of the Universidade Federal de Uberlândia (UFU) - Uberlândia (MG), Brasil
IIIMaster in Medical Sciences - PhD candidate in Internal Medcine at the Medical School of Ribeirão Preto of the Universidade de São Paulo (FMRP-USP) - São Paulo (SP), Brasil
IVPhD in Internal Medicine - Full Professor at the Internal Medicine Department of the Medical School of Ribeirão Preto of the Universidade de São Paulo (FMRPUSP) - São Paulo (SP), Brasil
VPhD in Internal Medicine - Full Professor at the Internal Medicine Department of the Medical School of the Universidade Federal do Triângulo Mineiro (UFMT) - Uberaba (MG), Brasil
BACKGROUND: Atrophy of the papillae, mucosa, and dorsum of the tongue are considered classical signs of nutritional deficiencies.
OBJECTIVE: To assess the nutritional status of hospitalized alcoholics with or without papillary atrophy of the tongue.
METHODS: This study was performed with 21 hospitalized alcoholics divided into Atrophic Glossitis Group (n=13) and Normal Tongue Group (n=8). Healthy, non-alcoholic volunteers composed the Control Group (n=8). Anthropometry and bioelectric impedance were performed, and serum vitamins A, E, and B12 were determined.
RESULTS: There were no statistical differences in relation to age (46.7±8.7 vs. 46.8±15.8 years) or gender (92.3% vs. 87.5% male), respectively. Control Group volunteers were also paired in relation to age (47.5±3.1 years) and male predominance (62.5%). In relation to hospitalized alcoholics without atrophic lesions of the tongue and Control Group, patients with papillary atrophy showed lower BMI (18.6 ± 2,5 vs 23.8 ± 3.5 vs 26.7 ± 3,6 kg/m2 ) and body fat content 7.6 ± 3.5 vs 13.3 ± 6.5 vs 19.5 ± 4,9 kg). When compared with the Control Group, alcoholic patients with or without papillary atrophy of the tongue showed lower values of red blood cells (10.8 ± 2.2 vs 11.8 ± 2.2 vs 14.5 ± 1,6g/dL) and albumin (3.6 ± 0.9 vs 3.6 ± 0.8 vs 4.4 ± 0.2g/dL). The seric levels of vitamins A, E, and B12 were similar amongst the groups.
CONCLUSION: Hospitalized alcoholics with papillary atrophy of the tongue had lower BMI and fat body stores than controls, without associated hypovitaminosis.
Keywords: Alcoholism; Anthropometry; Glossitis; Tongue diseases; Vitamins
FUNDAMENTOS: A deficiência crônica de nutrientes pode levar à hipotrofia das papilas e da mucosa e do dorso da língua, considerada um sinal clássico de subnutrição protéico-energética.
OBJETIVO: O objetivo do presente estudo é comparar o estado nutricional, incluindo as dosagens dos níveis séricos de vitaminas A, E e B12 em pacientes alcoolistas com ou sem alterações tróficas das papilas linguais.
MÉTODOS: O estudo caso-controle incluiu 21 pacientes adultos alcoolistas internados em um hospital universitário. Utilizando-se de um sistema de fotografia da cavidade oral, dois clínicos independentes classificaram os indivíduos alcoolistas de acordo com a presença ou não de alterações tróficas na língua. Foram registrados os dados antropométricos, a composição corporal pela impedância bioelétrica e os exames laboratoriais para avaliação clínica e nutricional, incluindo dosagens das vitaminas A, E e B12. O estudo incluiu ainda voluntários saudáveis, não alcoolistas como Grupo Controle (n=8). A comparação entre os grupos foi feita por ANOYA-F ou pelo teste de Kruskal-Wallis, de acordo com a curva de normalidade dos resultados. Foram considerados significativos diferenças com p < 0,05.
RESULTADOS: De acordo com a presença de alterações tróficas nas papilas linguais, os pacientes alcoolistas foram alocados no Grupo Língua Despapilada (n=13) e Grupo Língua Normal (n=8), sem diferença estatística quanto à idade (46,7 ± 8,7 vs 46,8 ± 15,8 anos) e gênero masculino (92,3 vs 87,5%). Os voluntários do Grupo Controle apresentaram 47,5 ±3,1 anos, sendo 62,5% do gênero masculino. Os pacientes alcoolistas com hipotrofia papilar apresentaram menor IMC (18,6 ± 2,5 vs 23,8 ± 3,5 vs 26,7 ± 3,6 kg/m2) e gordura corporal (7,6 ± 3,5 vs 13,3 ± 6,5 vs 19,5 ± 4,9 kg), quando comparados com os demais grupos. Em relação ao Grupo Controle, os alcoolistas apresentaram menores valores de hemoglobina (10,8 ± 2,2 vs 11,8 ± 2,2 vs 14,5 ± 1,6 g/dL) e albumina sérica (3,6 ± 0,9 vs 3,6 ± 0,8 vs 4,4 ± 0,2 g/dL). Os níveis plasmáticos de vitaminas A, E e B12 foram similares entres os grupos.
CONCLUSÃO: Os pacientes alcoolistas com achados físicos de hipotrofia de papilas linguais apresentam menores valores em medidas antropométricas, de hemoglobina e albumina séricas que os grupos Controle ou de alcoolistas sem língua despapilada. Não houve evidências de hipovitaminoses associadas.
Palavras-chave: Alcoolismo; Antropometria; Doenças da língua; Glossite; Vitaminas
The systematic inspection of the dorsum of the tongue is an essential part of the physical dermatological examination. 1 The distinctive texture and appearance of the dorsal tongue are determined by a large number of papillae protruded from the lamina propria to the mucosa epithelium, which gives the tongue its surface roughness and pinkish color. Clinically, there are no criteria on normal tongue except the doctor's subjectivity. Absence of filiform or fungiform papillae in more than 50% of the tongue gives rise to a "soft " aspect, known as atrophic glossitis or smooth tongue. 2,3 This finding is seen in 1.3% to 9.0% of the non-hospitalized population and in 30% to 40% of the hospitalized elderly. 2,4,5
Papillary atrophy of the tongue may be a manifestation of celiac disease, cardiac failure, syphilis, oral candidiasis, amyloidosis, and conditions such as Sjögrens syndrome, Plummer-Vinson syndrome, and Riley-Day dysautonomia syndrome. 1,2,6 Atrophic glossitis can also be the result of protein-calorie malnutrition as well as deficiency of iron, vitamin B12, folic acid, riboflavin, and niacin.2,3,7, 8 Although atrophic glossitis is considered a clinical sign of nutritional deficit, its importance is unclear and there are few studies exploring how nutritional disorders affect the oral mucosa, more specifically the tongue.9
In alcoholics, atrophic glossitis may originate from malnutrition or from the direct effect of ethanol on the oral mucosa. 2,10 Based on the above data we put forward a hypothesis that hospitalized alcoholics with papillary atrophy of the tongue have more nutritional impairment that those without atrophic glossitis. In this context, the aim of the present study was to compare the nutritional status of hospitalized alcoholics with e without papillary atrophy of the tongue and with a healthy control group.
The data collection was made in the Universidade Federal do Triângulo Mineiro - MG, Brazil, and this research protocol was approved by an Independent Ethical Committee bureau. All participants signed an informed consent term, including authorization for photographic imaging. Twenty-one adult inpatients with diagnosis of alcoholism were included in this study. All patients ingested Brazilian sugar cane spirits in amounts more than 100 g ethanol/day of at least 10 years, reported by the patient or their relatives. Exclusion criteria were patients receiving nutritional therapy (enteral or parenteral) and vitamin supplements, those with renal failure, diabetes mellitus and HIV infection. Eight healthy, teetotal volunteers with aged from 40 to 50 years old and without atrophic lesions of the tongue comprised the Control Group.
Photographic documentation of the dorsum of the tongue of all hospitalized alcoholics was obtained. By analyzing the photographs, three independent observers inspected the dorsum and lateral margins of the outer surface of the tongue, in order to identify atrophic alterations in the tongue papillary. The tongue was considered normal when there was regular distribution of the mucosa, papillae easily visualized, with longitudinal and transversal sulcus. Papillary atrophy was diagnosed when there was flattening of the mucosa in the tip and lateral borders of the tongue, giving this organ a smooth, slick aspect (Figure 1). According to these pre-established criteria, hospitalized alcoholics presenting atrophic lesions of the tongue were included in the Atrophic Glossitis Group (n=13), whereas those with preserved tongue papillary were placed in the Normal Tongue Group (n=8).
Anthropometry and bioelectrical impedance analysis to assess body composition were performed after an overnight fasting. Anthropometric assessment was carried out according to standardized procedures and the arm measurement is presented as percentage of the ideal value, taking into account normal values according to gender and age. Bioelectric impedance was measured by means of the RJL Bioelectric Impedance Analyzer (BIA 101-A Detroit, MI, USA).
Blood sample was collected within 72 h of hospital admission, after an overnight fasting. Biochemical examinations included blood glucose and serum levels of creatinine, aspartate aminotransferase (AST), alanine aminotransferase (ALT), gammaglutamyltransferase (Gamma-GT), sodium, potassium, phosphorus, magnesium, calcium, and albumin, as well as hemoglobin, mean corpuscular volume (MCV) and total lymphocytes. Vitamin A and α-tocopherol were determined by high performance liquid chromatography with UV detection (HPLC-UV); Vitamin B12 was measured using the IMMULITE® kit (Siemens).
The statistical analysis was accomplished with the Statistica software package (Version 8.0, Statsoft Inc, Tulsa, Oklahoma). For the comparison of three groups, data were analyzed by ANOVA-F and by the Tukey test for variables with normal distribution and by the Kruskal-Wallis and Dunn tests for variables without normal distribution. The level of significance was set at p<0.05 in all analyses.
There was complete agreement between three observers in diagnosis of papillary atrophy of the tongue. Among the alcoholics, age, gender and diagnosis upon admission are shown in table 1. Subjects of control group were aged 47.5 ± 3.1 years, and 62.5% were male.
Anthropometry and body composition data are summarized in table 2. Alcoholics with papillary atrophy of the tongue presented lower body weight, body mass index (BMI), arm circumference, tricipital skinfold thickness, muscular arm circumference, and fat body mass.
Table 3 lists the results from the biochemical assessment. Compared with the Control Group, alcoholic patients showed higher gamma-GT and lower hemoglobin and serum albumin. The serum levels of vitamins A, E, and B12 were similar among groups. Hypovitaminosis E was detected in three alcoholic patients, two of them in the Atrophic Glossitis Group and one to the Normal Tongue Group.
Although alcoholic patients with papillary atrophy of the tongue showed statistically lower anthropometric values compared with the other groups, there was no laboratorial evidence of deficiency of vitamins A, E, and B12. Lower levels hemoglobin and serum albumin were detected among alcoholic patients irrespective of atrophic glossitis, which suggests that ethanol abuse is involved in chronic nutritional deficiency.
It is well established that chronic ethanol abuse increases lipid oxidation, thermogenesis, and energy expenditure.11 Although it is difficult to determine the etiology of nutritional deficiency because of the heterogeneity of organic disorders and the presence of confounding factors associated with secondary malnutrition, alcoholism per se can be considered the cause of body weight reduction.11 Although reduction in lean body mass only occurs in patients with alcoholic liver disease, the body fat stores were maintained in chronic alcoholics with or without liver disease. 12 Similar to our finding, Fragasso et al described low levels of hemoglobin (7.5 ± 2.4 mg/dl) in alcoholic patients. 13 In our study, anemia, hypoalbuminemia and hyperglycemia were probably manifestations of acute phase response, secondary to the condition that required hospitalization, as observed in numerous clinical situations.14
After a short period of protein deprivation, adult rats did not present glossitis or loss of tongue filiform papillae, as demonstrated by scanning electron optical microscopy.9 Using anthropometric and biochemical criteria, Bøhmer & Mower concluded that atrophic glossitis represents a sign of moderate to severe malnutrition, with sensitivity of 0.43 and specificity of 0.67 in the elderly. 2
Compared to elderly individuals with normal tongue, those with atrophic glossitis do not present differences in terms of plasma levels of various nutritional markers such as vitamin A and vitamin E.5 Studying photographs of tongues of 30 elderly subjects, Drinka et al found that cases with overt atrophic glossitis tended to have multiple nutritional deficiencies.7 There was high correlation of plasma vitamin E levels with percentage of normal papillary development, and some authors suggest a role of its antioxidant effect in the maintenance of cellular membrane integrity.7
Although symptoms seem to appear later in the course of vitamin deficiency, changes in the oral mucosa were early symptoms of vitamin B12 or folate deficiency in a population 70 years or older.15 Lower blood folate levels were found in 56% patients with glossitis, but no reduction was found in serum cobalamin.16 In contrast with our study, case reports of atrophic glossitis and glossodynia have often been related to vitamin B12 deficiency. 17, 18 Graells et al have recently described four cases of glossitis with linear lesions associated with vitamin B12 deficiency secondary to atrophic gastritis or bacterial overgrowth, in the absence of neurologic symptoms or anemia.19
Different from our results, Fragasso et al. documented low levels of cobalamin in 68.2% of alcoholic patients. Significant positive correlations between vitamin B12 and hepatic enzyme values (gamma-GT) were found in 80 male alcohol-dependent patients. 10,13 Plasma cobalamin was significantly elevated in the cirrhosis patients, which could be explained by a deficient hepatic clearance of cobalamin bound to hapto corrin.20 Therefore, for a proper interpretation of vitamin B12 levels, it may be clinically relevant to take markers of hepatocellular damage into account. 10 The methylmalonic acid concentration in serum may be useful for evaluating vitamin B12 status in hepatic disease with falsely normal or high concentration of cobalamina in serum. 21
Excessive consumption of alcohol leads to reduction of hepatic vitamin A in reason of the overlapping metabolic pathways between retinol and ethanol. 22 Blood retinol of hospitalized German middle-class alcohol consumers with different stages of alcoholic liver disease was lower than healthy control subjects. 23 Plasma vitamin E level was not different in alcohol consumers and non consumers but alcohol consumers had lower concentrations of serum beta-carotene and higher selenium concentrations. 24
Besides being associated with the loss of taste sensation, it has been shown that ethanol and its metabolite acetaldehyde increase epithelium permeability, thereby causing oral mucosal atrophy correlated with hyper regeneration, augmented epithelial cell proliferation in the dorsal surface of the tongue mucosa, and decreased lipid peroxidation levels. 25-28 It is possible that changes due to ethanol abuse per se mask changes in the tongue dorsum resulting from vitamin deficiency. Further studies focusing on the chronic effects of alcohol on the ventral tongue should be conducted in animals with or without nutritional deficiencies.
It is worthwhile to stress four limitations of our work. First, one should mention the small sample size and the diversity of clinical diagnosis among the alcoholic patients. Second, other water soluble vitamins and minerals that can also be related to atrophic glossitis were not measured.3 Alcoholics individuals may have hepatic dysfunction that alters serum lipoproteins. Due to the fact the serum values of some vitamins may be influenced by levels of lipoproteins, it is recommended that vitamin E is corrected by the levels of circulating fat.29 And lastly, data on nutritional history is not presented, even though the questionnaire about the frequency of semi-quantitative food intake was applied whenever possible. We chose to exclude such data because of the overestimation of energy intake due to probable intentional or non-intentional tendency of the interviewee to give replies based on what is more socially accepted.30
In conclusion, our results indicate that alterations in the tongue papillary of hospitalized alcoholics occur in parallel with reduced anthropometric measures, anemia e hypoalbuminemia. There is no evidence of the influence of hypovitaminosis A, E and B12 in atrophic glossitis of chronic alcoholics.
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Selma Freire de Carvalho da Cunha
Departamento de Clínica Médica Faculdade de Medicina de Ribeirão Preto.
Av. Bandeirantes, 3900.
Cep 14048-900 Ribeirão Preto-SP, Brazil
Phone: 55-16 3633-0036 / 55-16 3602-3369 Fax: 55-16 3633-6695
Received on 26.01.2010.
Approved by the Advisory Board and accepted for publication on 09.03.01.
Conflict of interest: None
Financial funding: National Council of Scientific and Technological Development (Conselho Nacional de Desenvolvimento Científico e Tecnológico - CNPq)
* Work performed at the Medical School of Ribeirão Preto of the Universidade de São Paulo (FMRP-USP) and Universidade Federal do Triângulo Mineiro (UFMT) - Uberaba (MG), Brasil.