Cited by 28Hormonal and reproductive studiesNitric Oxide and Endothelin EffectsHypothalamic control of reproductive hormones

Elevated Plasma Concentration of Asymmetric Dimethylarginine That Is Reduced by Single Dose Testosterone Administration in Idiopathic Hypogonadotropic Hypogonadism Patients

Cakir, Erdinc, Ozcan, Omer, Yaman, Halil, Akgul, Emin Ozgur, Bilgi, Cumhur, Erbil, M. Kemal, Yesilova, Zeki·2005·The Journal of Clinical Endocrinology & Metabolism

Abstract

Our aim was to investigate whether plasma l-arginine and asymmetric dimethylarginine (ADMA) concentrations and nitric oxide (NO) production are altered in male idiopathic hypogonadotropic hypogonadism (IHH) patients in the hypogonadal state and after single dose testosterone administration compared with those in control subjects. Eighteen newly diagnosed male patients with IHH and 20 healthy volunteer controls matched by age and body mass index were enrolled in the study. Single dose testosterone was administrated im. Initially, pretreatment blood samples were collected after overnight fasting. Posttreatment blood samples were drawn 10 d after the injection. ADMA, l-arginine, and NO were measured in pre- and posttreatment blood samples. The pretreatment ADMA and l-arginine levels were significantly higher, and plasma nitrite plus nitrate (NOx) levels were lower than those in the control group. After 10 d of treatment, ADMA and l-arginine levels were significantly reduced, and NOx levels were significantly increased. There was a significant positive correlation (P < 0.01) between ADMA and l-arginine and a negative correlation between ADMA and NOx levels in patients and controls. In conclusion, the patients with IHH showed elevated plasma ADMA levels associated with a reduction in NO production. Single dose parenteral T administration lowered ADMA concentrations and increased NO production to the control group values.

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Crossref · 10.1210/jc.2004-2045

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Authors
Cakir, E., Ozcan, O., Yaman, H., Akgul, E. O., Bilgi, C., Erbil, M. K., & Yesilova, Z.
Affiliations
  • Departments of Emergency Medicine (E.C., O.O., C.B.), Ankara, Turkey
  • Biochemistry (H.Y., E.O.A., M.K.E.), Ankara, Turkey
  • Gastroenterology (Z.Y.), Gulhane Military Medical School, Ankara, Turkey
Venue
The Journal of Clinical Endocrinology & Metabolism
Published
2005-03-01
Volume
90
Issue
3
Pages
1651-1654
ISSN
  • 0021-972X (ISSN-L)
  • 1945-7197
OpenAlex
W2059240079
Cited by
28
References
35
Citations by year
2025: 1 · 2019: 1 · 2018: 2 · 2017: 1 · 2016: 2 · 2015: 2 · 2014: 2 · 2013: 1 · 2012: 5
FWCI
1.66
Type
journal article
Language
en
Open access
closed
Locations
  • The Journal of Clinical Endocrinology & Metabolism (publishedVersion)
  • PubMed (publishedVersion)
Funders
Eli Lilly and Company
Topics
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Hormonal and reproductive studies
  • Health Sciences › Medicine › Physiology › Nitric Oxide and Endothelin Effects
  • Health Sciences › Medicine › Reproductive Medicine › Hypothalamic control of reproductive hormones
Keywords
asymmetric dimethylarginine, idiopathic hypogonadotropic hypogonadism, testosterone administration, L-arginine, nitric oxide, nitrite/nitrate, endothelial dysfunction, male hypogonadism
MeSH terms
Adult, Androgens, Arginine, Humans, Hypogonadism, Male, Nitrates, Nitric Oxide, Nitrites, Testosterone

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