Directional dominance for low IgM and IgA levels.

نویسندگان

  • P Clark
  • R Jardine
  • P Jones
  • N G Martin
  • R J Walsh
چکیده

A biometrical genetical analysis of IgG, IgM, and IgA levels in 134 sets of twins is reported. High heritabilities, around .8, are found for all three immunoglobulin levels, and possible reasons for lower heritabilities found in family studies are discussed. There is evidence for genetical dominance tending to decrease IgM and IgA levels, but there is no evidence for the importance of family environment although the presence of dominance may make its detection difficult. The causes of covariation in the three measurements are unclear in males but in females appear to be mainly environmental in correlations with IgA and equally genetical and environmental in the IgG-IgM correlation.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Immunoglobulin IgG, IgM, IgA, and IgE Levels in Children with Chronic Sinusitis

Background and purpose: Sinusitis is a common disease in children that can lead to acute and chronic problems and sometimes severe complications. There is lack of evidence on underlying causes of chronic sinusitis in children in Iran, so, this study aimed to investigate the prevalence of humoral immune deficiency in patients with chronic sinusitis. Materials and methods: This cross-sectional s...

متن کامل

IgM, IgG, IgA Serum Levels and Lymphocytes Count Before and After Adenotonsillectomy

Background: Tonsils and adenoids are involved in both local immunity and immune surveillance for the development of immune defense mechanisms. A number of investigators have found decreased immunoglobulin levels after adenotonsillectomy while others have failed to find significant changes. The effects of adenotonsillectomy on the cellular immunity of children have not been investigated extensiv...

متن کامل

The Effect of an Intense Anaerobic Exercise Session on Serum Levels of IgG, IgM and IgA in Handball, Volleyball and Climbing Sports

Background and Aims: The immune system protects the body against many invasive foreign materials. The aim of this study was to investigate the effect of an intense anaerobic exercise session on serum IgG, IgM and IgA levels in handballists, volleybalists and climbers. Materials and Methods: In this study, 45 professional athletes with the average age of 20-30 years who had participated in th...

متن کامل

High Levels of IgA Antibodies to Helicobacter Pylori among Omani Women during Pregnancy and after Delivery

Background: Helicobacter pylori (H. pylori), is a common infection in pregnant women accompanied by variations in the levels of the IgM, IgA and IgG antibody isotypes. The variations of anti-H. pylori antibodies during and after pregnancy, and the extent of protection they provide to the mother and the fetus are not completely understood. Objectives: To investigate the changes of the anti-H. py...

متن کامل

COMPA RISON OF LEVELS OF IgG, IgA, AND IgM IN DIABETIC PATIENTS WITH DIFFERENT GLYCEMIC CONTROLS

Immunoglobulins G, A, and M have been reponed to be present in statistically significant higher levels in diabetic patients compared to healthy comrols. II may be conceived that the levels of immunoglobulins might be significantly higher in diabetics with long-lasting (months of) poor control than in peers with an equally long term period of good control. To assess this possibility, we meas...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • American journal of human genetics

دوره 33 5  شماره 

صفحات  -

تاریخ انتشار 1981