نتایج جستجو برای: serum testosterone assay

تعداد نتایج: 519026  

Journal: :Alcohol 2016
Annemarie Heberlein Bernd Lenz Birgitt Opfermann Michael Gröschl Eva Janke Katrin Stange Adrian Groh Johannes Kornhuber Helge Frieling Stefan Bleich Thomas Hillemacher

Preclinical and clinical studies show associations between testosterone and brain-derived neurotrophic growth factor (BDNF) serum levels. BDNF and testosterone have been independently reported to influence alcohol consumption. Therefore, we aimed to investigate a possible interplay of testosterone and BDNF contributing to alcohol dependence. Regarding possible interplay of testosterone and BDNF...

2010
Bo Sung Shin Eu Chang Hwang Chang Min Im Sun-ouck Kim Seung Il Jung Taek Won Kang Dong Deuk Kwon Kwangsung Park Soo Bang Ryu

PURPOSE To investigate patients who had transrectal ultrasonography (TRUS)-guided prostate biopsy to define the role of the serum testosterone level in predicting prostate cancer risk and its association with a high Gleason score. MATERIALS AND METHODS A total of 568 patients who underwent prostate biopsy were entered in this study. We divided the patients into two groups according to serum t...

2011
Claes Ohlsson Henri Wallaschofski Kathryn L. Lunetta Lisette Stolk John R. B. Perry Annemarie Koster Ann-Kristin Petersen Joel Eriksson Terho Lehtimäki Ilpo T. Huhtaniemi Geoffrey L. Hammond Marcello Maggio Andrea D. Coviello Luigi Ferrucci Margit Heier Albert Hofman Kate L. Holliday John-Olov Jansson Mika Kähönen David Karasik Magnus K. Karlsson Douglas P. Kiel Yongmei Liu Östen Ljunggren Mattias Lorentzon Leo-Pekka Lyytikäinen Thomas Meitinger Dan Mellström David Melzer Iva Miljkovic Matthias Nauck Maria Nilsson Brenda Penninx Stephen R. Pye Ramachandran S. Vasan Martin Reincke Fernando Rivadeneira Abdelouahid Tajar Alexander Teumer André G. Uitterlinden Jagadish Ulloor Jorma Viikari Uwe Völker Henry Völzke H. Erich Wichmann Tsung-Sheng Wu Wei Vivian Zhuang Elad Ziv Frederick C. W. Wu Olli Raitakari Anna Eriksson Martin Bidlingmaier Tamara B. Harris Anna Murray Frank H. de Jong Joanne M. Murabito Shalender Bhasin Liesbeth Vandenput Robin Haring

Testosterone concentrations in men are associated with cardiovascular morbidity, osteoporosis, and mortality and are affected by age, smoking, and obesity. Because of serum testosterone's high heritability, we performed a meta-analysis of genome-wide association data in 8,938 men from seven cohorts and followed up the genome-wide significant findings in one in silico (n = 871) and two de novo r...

Journal: :The Journal of reproduction and development 2007
Hataitip Trisomboon Gen Watanabe Phongphat Wetchasit Kazuyoshi Taya

The aim of the present study was to investigate the testosterone-like effect of Kaempferia parviflora (KP). Castrated immature rats were randomized and divided into two groups (control and KP-treatment groups). The rats (n=7-8) were treated daily for 5 days by oral route with water in the control group and 1,000 mg/kg of KP in the treatment group. All rats were decapitated 24 h after their last...

2004
Mario Pandin

During early fetal life of males, conversion of testosterone (T) to 5a-dihydrotestosterone (DHT) via the action of 5a-reductase in the external genital tissues is essential for complete sexual differentiation of male external genitalia. Measurement of low concentrations of DHT in serum of affected prepubertal males confirms the type of sexual disorder (1,2). Although commercial methodologies ha...

Journal: :the international journal of humanities 2007
abbass ghaffari-niaki azam afshar- naderi morteza taibi

the purpose of this study was to examine serum selenium (se), lipoproteins and testosterone responses to a single session of circuit resistance exercise. fourteen male college students volunteered in the present study. blood samples were taken at 30minutes before, immediately after 25 and 60minutes of single session of circuit resistance exercise (10 exercise, 20s for each exercise, and at 60%1...

2017
Joel Eriksson Robin Haring Niels Grarup Liesbeth Vandenput Henri Wallaschofski Erik Lorentzen Torben Hansen Dan Mellström Oluf Pedersen Matthias Nauck Mattias Lorentzon Lise Lotte Nystrup Husemoen Henry Völzke Magnus Karlsson Sebastian E. Baumeister Allan Linneberg Claes Ohlsson

CONTEXT Obesity in men is associated with low serum testosterone and both are associated with several diseases and increased mortality. OBJECTIVES Examine the direction and causality of the relationship between body mass index (BMI) and serum testosterone. DESIGN Bi-directional Mendelian randomization (MR) analysis on prospective cohorts. SETTING Five cohorts from Denmark, Germany and Swe...

Journal: :international journal of reproductive biomedicine 0
cyrus jalili sharareh ahmadi shiva roshankhah mohammadreza salahshoor

background: the predominant phytoestrogen in soy and derived products is the isoflavone genistein. genistein has antioxidant properties. morphine is a main psychoactive chemical in opium that can increase the generation of free radicals and therefore it could adversely affects the spermatogenesis. objective: the main goal was to investigate whether the genistein could protect morphine adverse e...

Journal: :The Japanese Journal of Urology 1969

Journal: :gene, cell and tissue 0
fahimeh mohammadghasemi cellular and molecular research center, faculty of medicine, guilan university of medical sciences, rasht, ir iran; cellular and molecular research center, faculty of medicine, guilan university of medical sciences, rasht, ir iran. tel: +98-9125153436 fax: +98-1333128842 rasool hassanzadeh student research center, guilan university of medical sciences, rasht, ir iran amir hassankhani student research center, guilan university of medical sciences, rasht, ir iran

background physical activity and alteration of temperature as a source of stress may have adverse effects on male reproduction. objectives the aim of this study was to investigate the effect of chronic swimming and standing in cold, warm and lukewarm water on mouse spermatogenesis. materials and methods forty-nine male mice (n = 49) were randomly divided into seven groups: c, control; swc, swim...

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