Abstract:
:Our earlier studies have demonstrated that gonadotropin-releasing hormone (GnRH) agonists suppress immune system function in female mice. No systematic studies regarding the effect of gender on immune system function following GnRH agonist treatment, however, have been reported. This study, therefore, investigated sequential changes in lymphocyte subsets in 3- and 10-week-old male mice following agonist or placebo administration. Changes in immunophenotypic expression of lymphocytes from thymus, bone marrow, spleen, and blood were analysed at periodic intervals. Upon agonist administration, plasma testosterone levels were significantly increased in pre-pubertal mice, but were significantly decreased in post-pubertal males. Absolute thymic weights, thymocytes and T subsets were significantly increased from the third week regardless of gonadal status. Blood lymphocyte subsets showed a decreasing trend after agonist administration in pre-pubertal males, whereas no differences were observed in post-pubertal males. No significant differences were observed in spleen cells after agonist administration. These studies, together with earlier observations in female mice indicate that GnRH agonist effects on the immune system, are independent of steroid hormone levels. In contrast to suppressive effects in females, GnRH agonist induce no change or ultimately enhanced lymphocyte counts in males, indicating differential effects on the immune system between males and females. This may have important implications for the treatment of various diseases.
journal_name
Immunol Cell Bioljournal_title
Immunology and cell biologyauthors
Rao LV,Cleveland RP,Kimmel RJ,Ataya KMdoi
10.1038/icb.1996.18subject
Has Abstractpub_date
1996-04-01 00:00:00pages
134-43issue
2eissn
0818-9641issn
1440-1711journal_volume
74pub_type
杂志文章abstract::Urinary tract infections are a major problem in human medicine for which better understanding of native immune defenses may reveal new pathways for therapeutic intervention. Tamm-Horsfall glycoprotein (THP), the most abundant urinary protein, interacts with bacteria including uropathogenic Escherichia coli (UPEC) as w...
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pub_type: 杂志文章
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journal_title:Immunology and cell biology
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journal_title:Immunology and cell biology
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journal_title:Immunology and cell biology
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journal_title:Immunology and cell biology
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journal_title:Immunology and cell biology
pub_type: 杂志文章
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journal_title:Immunology and cell biology
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journal_title:Immunology and cell biology
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journal_title:Immunology and cell biology
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