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The medical bibliography is deficient in research involving structural and laboratory abnormalities of the liver in asymptomatic and oligosymptomatic male alcoholics. The present study describes the alterations in tests that evaluate liver aggression, lesion and dysfunction, also correlating these with the changes in the consistency and sensitivity of the liver in aged and non-aged alcoholics. Cross-sectional study involving 100 alcoholic men, 50 aged and 50 non-aged. Of the aged and non-aged, respectively, the liver was palpable in 68% and 80%, the spleen was percutable in 72% and 74% and palpable in 12% and 22%, non-painful soft hepatomegaly was observed in 14% and 8%, painful hepatomegaly in 0% and 2%, firm hepatomegaly (painful and non-painful) in 54% and 70%, hepatomegaly and splenomegaly (percutable and palpable spleen) in 84% and 84%, and portal hypertension in 10 % and 14%. Elevated levels of aspartate aminotransferase were observed in 66% and 84%, alanine aminotransferase in 24% and 60%, gamma glutamyl transferase in 46% and 82% and alkaline phosphatase in 0% and 16% of the aged and non-aged, respectively. Elevation of aspartate aminotransferase greater than twice the reference value and the ratio aspartate aminotransferase to alanine aminotransferase greater than 2 were observed in 18% and 42% and 18% and 10% of the aged and non-aged, respectively. Hypoalbuminemia and hyperbilirubinemia were observed in 70% and 24% of the aged and 40% and 44% of the non-aged, respectively. The clinical and laboratory alterations observed are compatible with acute liver disease in 18% and 42%; chronic liver disease in 54% and 70%; portal hypertension in 10% and 14% of aged and non-aged patients, respectively.

A bibliografia médica carece de pesquisas que envolvem anormalidades estruturais e laboratoriais do fígado em homens alcoolistas assintomáticos e oligossintomáticos. O presente estudo descreve as alterações de testes que avaliam a agressão, lesão e disfunção, correlacionando-as com as mudanças da consistência e sensibilidade do fígado em alcoolistas idosos e não idosos. Este estudo transversal envolve 100 homens alcoolistas, 50 idosos e 50 não idosos. Em idosos e não idosos, respectivamente, o fígado estava palpável em 68% e 80%, o baço estava percutível em 72% e 74% e palpável em 12% e 22%, hepatomegalia mole dolorosa foi observada em 14% e 8%, hepatomegalia mole não dolorosa em 0% e 2%, hepatomegalia firme (dolorosa e não dolorosa) em 54% e 70%, hepatomegalia e esplenomegalia (baço percutível e palpável) em 84% e 84% e hipertensão portal em 10% e 14%. Foram observados níveis elevados da aspartato aminotransferase em 66% e 84%, da alanino aminotransferase em 24% e 60%, da gamaglutamiltransferase em 46% e 82% e da fosfatase alcalina em 0% e 16% dos idosos e não idosos, respectivamente. Foi observada a elevação da aspartato aminotransferase maior que duas vezes o valor de referência e a relação aspartato aminotransferase sobre alanino aminotransferase maior que 2, em 18% e 42% e 18% e 10% dos idosos e não idosos, respectivamente. Hipoalbuminemia e hiperbilirrubinemia ocorreram em 70% e 24% dos idosos e 44% e 30% dos não idosos, respectivamente. As alterações clínicas e laboratoriais observadas são compatíveis com doença aguda do fígado em 18% e 42%, doença crônica do fígado em 54% e 70%, hipertensão portal em 10% e 14% dos pacientes idosos e não idosos, respectivamente

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Three-dimensional algebraic models, also called Genetic Hotels, are developed to represent the Standard Genetic Code, the Standard tRNA Code (S-tRNA-C), and the Human tRNA code (H-tRNA-C). New algebraic concepts are introduced to be able to describe these models, to wit, the generalization of the 2n-Klein Group and the concept of a subgroup coset with a tail. We found that the H-tRNA-C displayed broken symmetries in regard to the S-tRNA-C, which is highly symmetric. We also show that there are only 12 ways to represent each of the corresponding phenotypic graphs of amino acids. The averages of statistical centrality measures of the 12 graphs for each of the three codes are carried out and they are statistically compared. The phenotypic graphs of the S-tRNA-C display a common triangular prism of amino acids in 10 out of the 12 graphs, whilst the corresponding graphs for the H-tRNA-C display only two triangular prisms. The graphs exhibit disjoint clusters of amino acids when their polar requirement values are used. We contend that the S-tRNA-C is in a frozen-like state, whereas the H-tRNA-C may be in an evolving state.

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OBJECTIVES: To review some aspects of the etiopathogenesis of peptic ulcerous disease especially on the basis of studies on its correlation with Helicobacter pylori (H. pylori). METHODS: A search was made in the data bases MEDLINE, LILACS and PubMed, and in Brazilian and foreign books, referring to the incidence and prevalence of infection by H. pylori and of peptic ulcerous disease in various populations of different countries. RESULTS: It was observed that the prevalence of H. pylori infection is similar in individuals with peptic ulcerous disease and the general population. There are differences between countries with respect to the prevalence of infection and of gastric or duodenal peptic ulcers. In many countries the prevalence of infection by H. pylori shows stability while the prevalence of peptic ulcerous disease is declining. The prevalence of peptic ulcerous disease without H. pylori infection varies between 20% and 56% in occidental countries. DISCUSSION: The observations might be suggestive of H. pylori being only one more factor to be summed together with other aggressive components in the genesis of peptic ulcerous disease. We would therewith be returning to the classic concept that peptic gastric and duodenal ulcers have multifactorial etiology and would result from imbalance between aggressive and defensive factors. The focus of studies should be enriched with the identification of the defensive factors and of other aggressive factors besides the well known H. pylori and non-steroidal anti-inflammatory drugs, since these two aggressors do not exhaust the full causal spectrum.

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Objectives To review some aspects of the etiopathogenesis of peptic ulcerous disease especially on the basis of studies on its correlation with Helicobacter pylori (H. pylori). Methods A search was made in the data bases MEDLINE, LILACS and PubMed, and in Brazilian and foreign books, referring to the incidence and prevalence of infection by H. pylori and of peptic ulcerous disease in various populations of different countries. Results It was observed that the prevalence of H. pylori infection is similar in individuals with peptic ulcerous disease and the general population. There are differences between countries with respect to the prevalence of infection and of gastric or duodenal peptic ulcers. In many countries the prevalence of infection by H. pylori shows stability while the prevalence of peptic ulcerous disease is declining. The prevalence of peptic ulcerous disease without H. pylori infection varies between 20% and 56% in occidental countries. Discussion The observations might be suggestive of H. pylori being only one more factor to be summed together with other aggressive components in the genesis of peptic ulcerous disease. We would therewith be returning to the classic concept that peptic gastric and duodenal ulcers have multifactorial etiology and would result from imbalance between aggressive and defensive factors. The focus of studies should be enriched with the identification of the defensive factors and of other aggressive factors besides the well known H. pylori and non-steroidal anti-inflammatory drugs, since these two aggressors do not exhaust the full causal spectrum. .

Objetivos Revisar a etiopatogenia da doença ulcerosa péptica com base em revisão de estudos sobre a correlação entre Helicobacter pylori (H. pylori) e doença ulcerosa péptica. Métodos Foi realizada busca nas bases de dados MEDLINE, LILACS e PubMed, e em livros brasileiros e estrangeiros referentes à incidência e prevalência de infecção pelo H. pylori e de doença ulcerosa péptica em várias populações de diferentes países. Resultados Observamos que a prevalência da infecção pelo H. pylori é semelhante em indivíduos com doença ulcerosa péptica e a população geral; que existem diferenças entre países no que tange as prevalências de infecção e a de úlceras péptica gástrica e duodenal e que, em muitos países, a prevalência de infecção pelo H. pylori se mantém estável, enquanto a prevalência de doença ulcerosa péptica está em queda. A prevalência de doença ulcerosa péptica na ausência de infecção pelo H. pylori varia de 20% a 56% nos países ocidentais. Discussão As observações sugerem que o H. pylori constituiria somente mais um fator a ser somado ao rol dos agressores na gênese da doença ulcerosa péptica. Assim, estaríamos retornando ao conceito de que as úlceras pépticas, gástrica e duodenal, têm etiologia multifatorial e decorreriam, como era admitido no passado, do desequilíbrio entre fatores agressivos e defensivos da mucosa. O foco dos estudos deveria ser redirecionado à identificação dos fatores defensivos e de outros fatores agressivos além dos bem conhecidos H. pylori e medicamentos anti-inflamatórios não-esteróides, desde que esses dois agentes não cobrem todo o espectro ...

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An investigation of the biosynthesis pathways producing glycine and serine was necessary to clarify an apparent inconsistency between the self-referential model (SRM) for the formation of the genetic code and the model of coevolution of encodings and of amino acid biosynthesis routes. According to the SRM proposal, glycine was the first amino acid encoded, followed by serine. The coevolution model does not state precisely which the first encodings were, only presenting a list of about ten early assignments including the derivation of glycine from serine-this being derived from the glycolysis intermediate glycerate, which reverses the order proposed by the self-referential model. Our search identified the glycine-serine pathway of syntheses based on one-carbon sources, involving activities of the glycine decarboxylase complex and its associated serine hydroxymethyltransferase, which is consistent with the order proposed by the self-referential model and supports its rationale for the origin of the genetic code: protein synthesis was developed inside an early metabolic system, serving the function of a sink of amino acids; the first peptides were glycine-rich and fit for the function of building the early ribonucleoproteins; glycine consumption in proteins drove the fixation of the glycine-serine pathway.

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A model for the formation of the genetic code is presented where protein synthesis is directed initially by tRNA dimers. Proteins that are resistant to degradation and efficient RNA-binders protect the RNAs. Replication becomes elongational producing poly-tRNAs from which the mRNAs and ribosomes are derived. Attributions are successively fixed to tRNAs paired through the perfect palindromic anticodons, with the same bases at the extremities (5'ANA: UNU 3'; GNG: CNC; principal dinucleotides, pDiN). The 5' degeneracy is then developed. The first pairs to be encoded correspond to the hydropathy correlation outliers (Gly-CC: Pro-GG and Ser-GA: Ser-CU) and to the sector of homogeneous pDiN, composed by two pyrimidines or two purines. These amino acids are preferred in the N-ends of proteins, stabilizers of proteins against catabolism and strong RNA-binders. The next pairs complete the sector of homogeneous pDiN (Asp, Glu-UC: Leu-AG and Asn, Lys-UU: Phe-AA). This set of nine amino acids forms the protein cores with the predominant aperiodic conformation. Next enter the pairs with mixed pDiN (one purine and one pyrimidine), the RY attributions composing the protein N-ends and the YR attributions the C-ends. The last pair contains the main punctuation signs (Ile, Met, iMet-AU: Tyr, Stop-UA). The model indicates that genetic information emerged during the process of formation of the coding/decoding system and that genes were defined by the proteins. Stable proteins constructed the nucleoprotein system by binding to the RNAs that produced them. In this circular rationale, genes are memories in a metabolic system for production of proteins that stabilize it. The simplicity and the highly deterministic character of the process suggest that the Last Universal Common Ancestor populations could be composed, in early stages, of lineages bearing similar genetic codes.

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Knowledge on the evolution of aminoacyl-tRNA synthetases is crucial to studies on the origins of life. The relationships between the different aminoacyl-tRNA synthetase specificities in prokaryotic organisms are studied in this work. We reconstructed the ancestor sequences and the phylogenetic relationships utilizing the Maximum Likelihood method. The results suggest that in class I the evolution of the N-terminal segment was strongly influenced by the amino acid hydropathy in both domains of prokaryotes. The results for the C-terminal segments of class I were different in the two domains, indicating that its evolution was strongly influenced by the specific types of tRNA modification in each domain. The class II groups in Archaea were more heterogeneous with respect to the hydropathy of amino acids, indicating the interference of other influences. In bacteria, the configuration was also complex but the overall consensual division in two groups was maintained, group IIa forming a single branch with the five hydroapathetic amino acid specificities and group IIb containing the specificities for the moderately hydrophobic together with the hydrophilic amino acids. It is indicated that the aminoacyl-tRNA synthetase in both domains were subjected to different selective forces in diverse parts of the proteins, resulting in complex phylogenetic patterns.

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The correlation between hydropathies of anticodons and amino acids, detected by other authors utilizing scales of amino acid molecules in solution, was improved with the utilization of scales of amino acid residues in proteins. Three partitions were discerned in the correlation plot with the principal dinucleotides of anticodons (pDiN, excluding the wobble position). (a) The set of outliers of the correlation: Gly-CC, Pro-GG, Ser-GA and Ser-CU. The amino acids are consistently small, hydro-apathetic, stabilizers of protein N-ends, preferred in aperiodic protein conformations and belong to synthetases class II. The pDiN sequences are representative of the homogeneous sector (triplets NRR and NYY), distinguished from the mixed sector (triplets NRY and NYR), that depict a 70% correspondence to the synthetases class II and I, respectively. The triplet pairs proposed to be responsible for the coherence in the set of outliers are of the palindromic kind, where the lateral bases are the same, CCC: GGG and AGA: UCU. This suggests that UCU previously belonged to Ser, adding to other indications that the attribution of Arg to YCU was due to an expansion of the Arg-tRNA synthetase specificity. The other attributions produced two correlation sets. (b) One corresponds to the remaining pDiN of the homogeneous sector, containing both synthetase classes; its regression line overlapped the one formed by the remaining attributions to class II. (c) The other contains the pDiN of the mixed sector and produced steeper slopes, especially with the class I attributions. It is suggested that the correlation was established when the amino acid composition of the protein synthetases became progressively enriched and that the set of outliers were the earliest to have been fixed.

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CONTEXT: Hepatotoxicity is a potential complication from the usage of various illicit drugs, possibly consequent to their liver metabolism, but information on this is scarce in the medical literature. OBJECTIVE: To study the occurrence of clinical and laboratory hepatic alterations in chronic marijuana users, from the use of marijuana on its own or in association with other legal or illicit drugs. TYPE OF STUDY: transversal study SETTING: Hospital Espírita de Marília, Marília, São Paulo, Brazil PARTICIPANTS: The study was made among 123 patients interned in the Hospital Espírita de Marília from October 1996 to December 1998, divided into 3 groups: 26 (21%) using only marijuana, 83 (67.5%) using marijuana and crack, and 14 (11.4%) consuming marijuana and alcohol. PROCEDURES AND MAIN MEASUREMENTS: Patients were examined clinically with special emphasis on types of drugs used, drug intake route, age when consumption began, length and pattern of usage, presence of tattooing, jaundice, hepatomegaly and splenomegaly. Serum determinations of total proteins, albumin, globulin, total and fractions of bilirubin, aspartate (AST) and alanine (ALT) aminotransferases, alkaline phosphatase (AP), gamma-glutamyltransferase and prothrombin activity were performed. RESULTS: Among users of only marijuana, hepatomegaly was observed in 57.7% and splenomegaly in 73.1%, and slightly elevated AST (42.3%), ALT (34.6%) and AP (53.8%). The three groups did not differ significantly in the prevalence of hepatomegaly, splenomegaly and hepatosplenomegaly. The group using both marijuana and alcohol showed the highest prevalence of alterations and highest levels of aminotransferases. Mean AP levels were above normal in all groups. CONCLUSIONS: Chronic marijuana usage, on its own or in association with other drugs, was associated with hepatic morphologic and enzymatic alterations. This indicates that cannabinoids are possible hepatotoxic substances.

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CONTEXTO: Hepatotoxidade é uma complicação potencial do uso de várias drogas ilícitas, possivelmente como conseqüência do seu metabolismo hepático. Entretanto, informações sobre tal possibilidade são escassas na bibliografia médica. OBJETIVO: Estudar a ocorrência de alterações clínicas e laboratoriais hepáticas que podem ocorrer em usuários crônicos de maconha, isoladamente ou associadas ao uso de outras drogas lícitas e ilícitas. TIPO DE ESTUDO: estudo transversal LOCAL: Hospital Espírita de Marília, Marília - SP, Brasil. PARTICIPANTES: Foram estudados 123 pacientes, internados no Hospital Espírita de Marília de outubro de 1996 a dezembro de 1998, divididos em três grupos: 26 (21%) usuários exclusivamente de maconha, 83 (67,5%) usuários de maconha e crack e 14 (11,4%) usuários de maconha e álcool. PROCEDIMENTOS E VARIAVEIS ESTUDADAS: Os pacientes foram examinados clinicamente, com especial ênfase nos aspectos relativos aos tipos de drogas usadas e rotas de usos, idade de início do uso, tempo e padrão de uso, presença ou ausência de tatuagem, icterícia, hepatomegalia e esplenomegalia. Foram determinados os níveis séricos de proteínas totais, albumina, globulina, bilirrubina total e frações, aspartato-aminotransferase (AST), alanina-aminotransferase (ALT), fosfatase alcalina (FA), gama-glutamiltransferase e atividade da protrombina. RESULTADOS: Entre os usuários exclusivos de maconha foram observados hepatomegalia em 57,7% e esplenomegalia em 73,1% dos casos, e estavam discretamente elevadas a AST (42,3%), ALT (34,6%) e FA (53,8%). Os três grupos não diferiram significativamente nas prevalências de hepatomegalia, esplenomegalia e hepatoesplenomegalia. No grupo maconha/álcool foram observadas as maiores prevalências de alterações e níveis mais elevados das aminotransferases. Os níveis médios da fosfatase alcalina estavam acima do valor normal em todos os grupos. CONCLUSÕES: O uso crônico de maconha, exclusivo ou associado a outras drogas, associou-se a alterações morfológicas e enzimáticas hepáticas, sugerindo serem os canabinóides substâncias possivelmente hepatotóxicas.

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OBJECTIVE: To identify the electrocardiographic changes and their associations with metabolic and electrolytic changes in female alcoholics. METHODS: The study comprised 44 female alcoholics with no apparent physical disorder. They underwent the following examinations: conventional electrocardiography; serologic tests for syphilis, Chagas' disease, and hepatitis B and C viruses; urinary pregnancy testing; hematimetric analysis; biochemical measurements of albumin, fibrinogen, fasting and postprandial glycemias, lipids, hepatic enzymes, and markers for tissue necrosis and inflammation. RESULTS: Some type of electrocardiographic change was identified in 33 (75%) patients. In 17 (38.6%) patients, more than one of the following changes were present: prolonged QTc interval in 24 (54.5%), change in ventricular repolarization in 11(25%), left ventricular hypertrophy in 6 (13.6%), sinus bradycardia in 4 (9.1%), sinus tachycardia in 3 (6.8%), and conduction disorder in 3 (6.8%). The patients had elevated mean serum levels of creatine phosphokinase, aspartate aminotransferases, and gamma glutamyl transferase, as well as hypocalcemia and low levels of total cholesterol and LDL-cholesterol. The patients with altered electrocardiograms had a more elevated age, a lower alcohol consumption, hypopotassemia, and significantly elevated levels of triglycerides, postprandial glucose, sodium and gamma glutamyl transferase than those with normal electrocardiograms. The opposite occurred with fasting glycemia, magnesium, and alanine aminotransferase. CONCLUSION: The electrocardiographic changes found were prolonged QTc interval, change in ventricular repolarization, and left ventricular hypertrophy. Patients with normal and abnormal electrocardiograms had different metabolic and electrolytic changes.

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OBJECTIVE: To identify the electrocardiographic changes and their associations with metabolic and electrolytic changes in female alcoholics. METHODS: The study comprised 44 female alcoholics with no apparent physical disorder. They underwent the following examinations: conventional electrocardiography; serologic tests for syphilis, Chagas' disease, and hepatitis B and C viruses; urinary pregnancy testing; hematimetric analysis; biochemical measurements of albumin, fibrinogen, fasting and postprandial glycemias, lipids, hepatic enzymes, and markers for tissue necrosis and inflammation. RESULTS: Some type of electrocardiographic change was identified in 33 (75 percent) patients. In 17 (38.6 percent) patients, more than one of the following changes were present: prolonged QTc interval in 24 (54.5 percent), change in ventricular repolarization in 11(25 percent), left ventricular hypertrophy in 6 (13.6 percent), sinus bradycardia in 4 (9.1 percent), sinus tachycardia in 3 (6.8 percent), and conduction disorder in 3 (6.8 percent). The patients had elevated mean serum levels of creatine phosphokinase, aspartate aminotransferases, and gamma glutamyl transferase, as well as hypocalcemia and low levels of total cholesterol and LDL-cholesterol. The patients with altered electrocardiograms had a more elevated age, a lower alcohol consumption, hypopotassemia, and significantly elevated levels of triglycerides, postprandial glucose, sodium and gamma glutamyl transferase than those with normal electrocardiograms. The opposite occurred with fasting glycemia, magnesium, and alanine aminotransferase. CONCLUSION: The electrocardiographic changes found were prolonged QTc interval, change in ventricular repolarization, and left ventricular hypertrophy. Patients with normal and abnormal electrocardiograms had different metabolic and electrolytic changes

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PURPOSE: To review the medical literature regarding the histopathologic and biochemical liver test abnormalities in chronic asymptomatic or oligosymptomatic alcoholics. METHODS: Review of articles in the MEDLINE and LILACS databases regarding serum levels and prevalence of alterations in aspartate-aminotransferase, alanine-aminotransferase, alkaline phosphatase, and total bilirubin, in relation to liver histopathology, with or without discrimination of types of histopathologic alteration. RESULTS: Global mean prevalence rates of aspartate-aminotransferase and alanine-aminotransferase alterations were 86.3% and 51.1%; in cases with steatosis they were 79.1% and 38.5%; and in cases of hepatitis, 90.1% and 58%. In all studies, prevalence rates of aspartate-aminotransferase alterations were significantly higher with lower variability than those of alanine-aminotransferase. Mean aspartate-aminotransferase levels were higher than 2N (N is the upper normal limit of the method employed) in all cases with hepatitis histopathology, while those of alanine-aminotransferase were 1.48N, in the same cases. Prevalence of alkaline phosphatase and total bilirubin abnormalities were 74.5% and 74.9% globally; in cases of steatosis, they were 70.9% and 67.9%; and in cases of hepatitis, 75.9% and 77.7%. Mean alkaline phosphatase levels were above the upper normal limit in all cases, but those of total bilirubin were above normal in 4 of 7 hepatitis studies. CONCLUSIONS: Prevalence of aspartate-aminotransferase alteration was consistently related to presence of histopathologic abnormalities; an enzyme level higher than 2N suggests the diagnosis of alcoholic hepatitis.

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Foram estudados 406 pacientes, 382 (94 por cento) do sexo masculino, usuários de drogas ilícitas internados em hospital psiquiátrico. Informações sobre as características demográficas e epidemiológicas, tipos de droga, idade de início, padrões e rotas de uso foram obtidas através de instrumento anamnéstico estruturado. No mesmo intervalo de tempo, a prevalência de uso de drogas ilícitas foi muito maior entre os homens do que entre as mulheres. Em ambos os sexos, cerca de metade dos pacientes tinha idade abaixo dos 20 anos e 80 por cento, abaixo dos 30 anos. O início do uso ocorreu antes dos 20 anos de idade em 80 por cento dos homens e em 90 por cento das mulheres. A cor da pele não esteve relacionada com a prevalência de uso. O crack, isoladamente ou associado à maconha, foi a droga de uso mais prevalente: 37,2 por cento e 25,7 por cento, respectivamente, por homens; 58,3 por cento e 29,2 por cento, respectivamente, por mulheres. Eram 207 usuários de monodroga (51 por cento) e 199 de polidroga (49 por cento), sendo a primeira ligeiramente mais freqüente entre as mulheres. A quantidade de droga consumida por cerca de 98,6 por cento dos usuários de crack, 96,2 por cento dos de maconha e 91,7 por cento dos de cocaína era menor ou igual a 15g, 10g e 5g, respectivamente. Os homens consumiam crack e maconha em quantidades significativamente maiores que as mulheres. Tolerância foi observada apenas com relação ao crack.

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PURPOSE: To review the medical literature regarding the histopathologic and biochemical liver test abnormalities in chronic asymptomatic or oligosymptomatic alcoholics. METHODS: Review of articles in the MEDLINE and LILACS databases regarding serum levels and prevalence of alterations in aspartate-aminotransferase, alanine-aminotransferase, alkaline phosphatase, and total bilirubin, in relation to liver histopathology, with or without discrimination of types of histopathologic alteration. RESULTS: Global mean prevalence rates of aspartate-aminotransferase and alanine-aminotransferase alterations were 86.3 percent and 51.1 percent; in cases with steatosis they were 79.1 percent and 38.5 percent; and in cases of hepatitis, 90.1 percent and 58 percent. In all studies, prevalence rates of aspartate-aminotransferase alterations were significantly higher with lower variability than those of alanine-aminotransferase. Mean aspartate-aminotransferase levels were higher than 2N (N is the upper normal limit of the method employed) in all cases with hepatitis histopathology, while those of alanine-aminotransferase were 1.48N, in the same cases. Prevalence of alkaline phosphatase and total bilirubin abnormalities were 74.5 percent and 74.9 percent globally; in cases of steatosis, they were 70.9 percent and 67.9 percent; and in cases of hepatitis, 75.9 percent and 77.7 percent. Mean alkaline phosphatase levels were above the upper normal limit in all cases, but those of total bilirubin were above normal in 4 of 7 hepatitis studies. CONCLUSIONS: Prevalence of aspartate-aminotransferase alteration was consistently related to presence of histopathologic abnormalities; an enzyme level higher than 2N suggests the diagnosis of alcoholic hepatitis

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Evolution of metazoan 5S rRNA sequences was analyzed through base composition and types, location and frequency of clustered bases. Characters from sequences of protostomes did not show regular trends as compared with paleontology dating or organism complexity. Trends of increasing G and C, stronger in G clusters, and decreasing A and U, were detected in deuterostomes, in parallel with evolution of complexity. The multifunctional domain 71-104 was highlighted among conserved stretches. Clusters of C were typical of helices. Those of G were longer, extending from helices into loops or related to bulges, which is suggestive of functional significance. Deuterostomian trends were installed early in the lineage and reached full development in aquatic organisms, not increasing further after reptiles. It can be suggested that ribosomal RNA structures participated in deuterostomian high regulatory complexity, either specifically or as part of the widespread processes of chromosomal regionalization

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A funcao hepatica e suas correlacoes com a bilirrubina e as enzimas hepaticas foram avaliadas em 30 alcoolistas cronicos do sexo masculino, assintomaticos ou olingossintomaticos, internados em hospital psiquiatrico para desintoxicacao e tratamento de alcoolismo. Hipoalbunemia, hipoatividade da protrombina, hipofibrinogenemia e hipotransferrinemia ocorreram em 32 por cento, 32 por cento, 24 por cento, e 28 por cento dos pacientes, respectivamente...

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Indicadores bioquimicos e hematimetricos de inflamacao e lesao celular foram correlacionados com bilirrubina e enzimas hepaticas e pancreatica em 30 alcoolistas cronicos do sexo masculino internados em hospital psiquiatrico para desintoxicacao e tratamento do alcoolismo. A aspartato aminotransferase, alanino aminotransferase, gamaglumiltransferase, fosfatase alcalina e bilirrubina total estavam alteradas em 90(por cento), 63(por cento), 87(por cento), 23(por cento) e 23(por cento) dos casos, respectivamente. Entre os indicadores de inflamacao (desidrogenase latica, alterada em 16 dos casos; alfa-1 globulina, 24(por cento), alfa-2 globulina, 88(por cento); contagem de leucocitos, 28(por cento) nenhum estava correlacionado com as alteracoes da bilirrubina e enzimas hepaticas...

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