نتایج جستجو برای: aas
تعداد نتایج: 3708 فیلتر نتایج به سال:
Background—Although illicit anabolic-androgenic steroid (AAS) use is widespread, the cardiac effects of long-term AAS use remain inadequately characterized. We compared cardiac parameters in weightlifters reporting long-term AAS use to those in otherwise similar weightlifters without prior AAS exposure. Methods and Results—We performed 2D tissue-Doppler and speckle-tracking echocardiography to ...
BACKGROUND Although illicit anabolic-androgenic steroid (AAS) use is widespread, the cardiac effects of long-term AAS use remain inadequately characterized. We compared cardiac parameters in weightlifters reporting long-term AAS use to those in otherwise similar weightlifters without prior AAS exposure. METHODS AND RESULTS We performed 2D tissue-Doppler and speckle-tracking echocardiography t...
Background Anabolic Androgenic Steroids (AAS) are synthetic derivatives of the male sex hormone (testosterone) that are increasingly used by athletes as performance enhancing drugs to increase muscle mass and strength. Multiple health adverse effects may be caused by its non-medical use. Several international and regional studies showed the high prevalence of AAS usage and low level of awarenes...
The recreational use of androgenic anabolic steroids (AAS) has been associated with a range of health and psychological problems in the past, but very little research has considered what impact AAS might have upon cognition and memory. The present study aimed to identify whether the recreational use of AAS is linked to deficits in everyday retrospective memory (RM) and everyday prospective memo...
In hamsters, adolescent anabolic-androgenic steroid (AAS) exposure facilitates offensive aggression, in part by altering the development and activity of anterior hypothalamic arginine vasopressin (AH-AVP). This study assessed whether these effects were lasting by examining aggression and AH-AVP during AAS withdrawal. Adolescent hamsters administered AAS were tested as adults for aggression at 1...
BACKGROUND Anabolic-androgenic steroids (AAS) abuse by the athletes has dramatically increased during the recent decades. These substances might increase the skin lipids and enhance the cutaneous microbial proliferation. OBJECTIVES The current study aimed to investigate the potential side effects of AAS on the bacterial microflora colonization of the bodybuilders` skin. PATIENTS AND METHODS...
Laboratory red blood cell (RBC) measurements are clinically important, heritable and differ among ethnic groups. To identify genetic variants that contribute to RBC phenotypes in African Americans (AAs), we conducted a genome-wide association study in up to ~16 500 AAs. The alpha-globin locus on chromosome 16pter [lead SNP rs13335629 in ITFG3 gene; P < 1E-13 for hemoglobin (Hgb), RBC count, mea...
BACKGROUND Anabolic androgenic steroids (AAS) are testosterone derivatives used by athletes and recreational users to improve athletic performance and/or enhance appearance. Anabolic androgenic steroids use may have serious and potentially irreversible adverse effects on different organs and systems, including the reproductive system. OBJECTIVE This systematic review and meta-analysis aimed t...
OBJECTIVES To find the relationship between anabolic androgenic steroids (AAS) using and QT interval in athletes. METHODS Between January 1, 2005 and May 31, 2007, we examined QTc interval duration in 165 consecutive male professional bodybuilders [age: 32.1 +/- 4.6 years]. Of these, 79 were AAS users. The control group included 90 sedentary age and gender matched subjects [none of them were ...
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