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Monoamine oxidase and homovanillic acid in boys with predispositions to substance abuse. 1994

S Gabel, and J Stadler, and J Bjorn, and R Shindledecker, and C L Bowden
Department of Psychiatry and Behavioral Sciences, Children's Hospital, Denver, CO 80218-1088.

Both dopaminergic dysregulation and abnormalities in monoamine oxidase (MAO) have been postulated as etiological factors in substance abuse. This study assessed whether MAO activity differed in sons of substance-abusing fathers compared with sons of nonsubstance-abusing fathers. It also assessed the levels of homovanillic acid (HVA), the metabolite of dopamine, and MAO in a group of substance-using/-abusing boys compared with peers without this history in the same setting. Sixty-five boys admitted to a residential center were evaluated on blood tests for HVA and MAO, and on a series of diagnostic instruments and questionnaires designed to elicit information about parental substance abuse and about the subject's own substance use/abuse. The results indicated tentatively that younger (< 12.0 years) sons of substance-abusing fathers had higher levels of MAO than younger sons of nonsubstance-abusing fathers. Levels of MAO in older (> or = 12.0 years) sons of substance-abusing and nonsubstance-abusing fathers did not differ. Boys with histories of significant use/abuse of substances themselves had significantly higher MAO levels and significantly lower HVA levels than peers of the same age without substance use/abuse histories.

UI MeSH Term Description Entries
D008297 Male Males
D008995 Monoamine Oxidase An enzyme that catalyzes the oxidative deamination of naturally occurring monoamines. It is a flavin-containing enzyme that is localized in mitochondrial membranes, whether in nerve terminals, the liver, or other organs. Monoamine oxidase is important in regulating the metabolic degradation of catecholamines and serotonin in neural or target tissues. Hepatic monoamine oxidase has a crucial defensive role in inactivating circulating monoamines or those, such as tyramine, that originate in the gut and are absorbed into the portal circulation. (From Goodman and Gilman's, The Pharmacological Basis of Therapeutics, 8th ed, p415) EC 1.4.3.4. Amine Oxidase (Flavin-Containing),MAO,MAO-A,MAO-B,Monoamine Oxidase A,Monoamine Oxidase B,Type A Monoamine Oxidase,Type B Monoamine Oxidase,Tyramine Oxidase,MAO A,MAO B,Oxidase, Monoamine,Oxidase, Tyramine
D009518 New York State bounded on the north by Lake Ontario and Canada, on the east by Vermont, Massachusetts, and Connecticut, on the south by the Atlantic Ocean, New Jersey, and Pennsylvania, and on the west by Pennsylvania, Lake Erie, and Canada.
D010552 Personality Assessment The determination and evaluation of personality attributes by interviews, observations, tests, or scales. Articles concerning personality measurement are considered to be within scope of this term. Assessment, Personality,Assessments, Personality,Personality Assessments
D012114 Residential Treatment A specialized residential treatment program for behavior disorders including substance abuse. It may include therapeutically planned group living and learning situations including teaching of adaptive skills to help patient functioning in the community. (From Kahn, A. P. and Fawcett, J. Encyclopedia of Mental Health, 1993, p320.) Residential Treatments,Treatment, Residential,Treatments, Residential
D002648 Child A person 6 to 12 years of age. An individual 2 to 5 years old is CHILD, PRESCHOOL. Children
D005220 Fathers Male parents, human or animal. Father
D006719 Homovanillic Acid A 3-O-methyl ETHER of (3,4-dihydroxyphenyl)acetic acid. 3-Methoxy-4-Hydroxyphenylacetic Acid,4-Hydroxy-3-Methoxyphenylacetic Acid,3 Methoxy 4 Hydroxyphenylacetic Acid,4 Hydroxy 3 Methoxyphenylacetic Acid,Acid, 3-Methoxy-4-Hydroxyphenylacetic,Acid, 4-Hydroxy-3-Methoxyphenylacetic,Acid, Homovanillic
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000293 Adolescent A person 13 to 18 years of age. Adolescence,Youth,Adolescents,Adolescents, Female,Adolescents, Male,Teenagers,Teens,Adolescent, Female,Adolescent, Male,Female Adolescent,Female Adolescents,Male Adolescent,Male Adolescents,Teen,Teenager,Youths

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