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The lack of association between monoamine oxidase (MAO) intron 13 polymorphism and platelet MAO-B activity among men


Pivac, Nela; Knežević, Jelena; Mustapić, Maja; Deželjin, Martina; Muck-Šeler, Dorotea; Kozarić-Kovačić, Dragica; Balija, Melita; Matijević, Tanja; Pavelić, Jasminka
The lack of association between monoamine oxidase (MAO) intron 13 polymorphism and platelet MAO-B activity among men // Life Sciences, 79 (2006), 45-49 (međunarodna recenzija, članak, znanstveni)


Naslov
The lack of association between monoamine oxidase (MAO) intron 13 polymorphism and platelet MAO-B activity among men

Autori
Pivac, Nela ; Knežević, Jelena ; Mustapić, Maja ; Deželjin, Martina ; Muck-Šeler, Dorotea ; Kozarić-Kovačić, Dragica ; Balija, Melita ; Matijević, Tanja ; Pavelić, Jasminka

Izvornik
Life Sciences (0024-3205) 79 (2006); 45-49

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Monoamine oxidase (MAO); platelets; MAO-B activity; MAO-B intron 13 polymorphism; Control male subjects

Sažetak
Monoamine oxidase (MAO), a mitochondrial flavine containing enzyme, exists in two isoenzymes, MAO-A and MAO-B. Platelets contain MAO-B subtype, proposed to be a biomarker for different personality characteristics and vulnerability for substance abuse. The most common polymorphism of MAO-B gene, a single base change (A or G) occurs in intron 13. It has been proposed to be a functional polymorphism, controlling the activity of MAO-B in platelets. The aim of the study was to determine the association between platelet MAO-B activity and MAO-B intron 13 polymorphism in 225 racially and ethnically uniform healthy Caucasian men of the Croatian origin. Our results showed that platelet MAO-B activity did not differ between subjects subdivided into those with &laquo ; ; ; ; ; A allele&raquo ; ; ; ; ; or &laquo ; ; ; ; ; G allele&raquo ; ; ; ; ; . This polymorphism of the MAO-B gene did not control the activity of the MAO-B in platelets. Platelet MAO-B activity was associated only with the smoking status, and it was significantly decreased in smokers when compared to nonsmokers. No significant association was found between MAO-B polymorphism and smoking status. In healthy individuals of the Croatian origin, the studied MAO-B polymorphism showed a lack of functional importance in regulating MAO-B activity in platelets. Since different populations may vary in the association between functional polymorphism and the MAO-B activity, and the genotype of transcription factor AP-2 was reported to be associated with altered platelet MAO-B activity, and with specific personality traits, further studies on different populations should be conducted to elucidate the molecular mechanism/s regulating platelet MAO-B activity.

Izvorni jezik
Engleski

Znanstvena područja
Biologija, Temeljne medicinske znanosti, Kliničke medicinske znanosti



POVEZANOST RADA


Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus
  • MEDLINE