PubMed · 4698412
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R Bjornson. 1973. The people problem.. https://pubmed.ncbi.nlm.nih.gov/4698412/
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We compared the post mortem diagnostic value of gamma-glutamyltransferase (GGT), carbohydrate-deficient transferrin (CDT), alcoholic liver disease (ALD), blood alcohol concentration (BAC), the presence of multiple bruises and poor hygiene of the feet as markers of chronic alcoholism (heavy continuous drinking) in 32 alcoholics with 32 age-sex matched controls drawn from a forensic autopsy population. Alcoholics and controls were selected on the basis of positive and negative medical history but controls were excluded if BAC exceeded 70 mg%. Femoral venous blood, urine and vitreous humour alcohol concentrations were determined by headspace gas chromatography (GC). BAC was positive in 19 alcoholics (mean 234 mg%, range 2-570 mg%) and six controls (mean 32 mg%, range 2-52 mg%). Serum GGT was measured by a kinetic photometric method, and CDT by both isoelectric focusing/laser densitometry and by a commercial radioimmunoassay kit (CDTect). Features of alcoholic liver disease were graded histologically using two weighted scoring systems. Eleven alcoholics tested positive for GGT, CDTq and ALD, nine were positive for two tests, five for one test and three were negative for all three tests. No controls were positive for all three tests but six were positive for two tests and nine for only one test; 17 were negative for all three tests. Using the normal clinical cut-off values GGT, CDTq and CDTect gave poor specificity which was improved at moderate cost to sensitivity by raising cut off values for each test. Comparison of receiver operating characteristic curves, likelihood ratios and post-test odds showed CDT to be the best individual test, followed by ALD and GGT. Quantitation of CDT by IEF/laser densitometry performed slightly better than MAEC/RIA by CDTect. CDT shows considerable promise as a post mortem marker of chronic alcoholism.
Association studies between the A1 allele of the dopamine D2 receptor (DRD2) gene TaqI A polymorphism and alcoholism remain controversial. A recent study from Japan demonstrated that the A1 allele is associated with severe alcoholism in the Japanese population. We were interested in knowing if this association also exists in the Atayals of Taiwan, who were found to have a higher prevalence of alcohol-use disorders than the Han Chinese in Taiwan. Genotype and allele frequencies were determined in alcohol-abusing, alcohol-dependent, and nonalcoholic control Atayal natives in Taiwan. A1 allele frequencies in alcohol-dependent, alcohol-abusing, and normal control Atayals were 0.39, 0.42, and 0.39, respectively. No difference in A1 allele frequency was found among these three groups. Our data do not support the hypothesis that the A1 allele of the TaqI A polymorphism of the DRD2 gene increases susceptibility to alcohol-use disorders in the Atayals of Taiwan.
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