A study on the stabilty of different frusemide liquid dosage formulas: Oral solution, syrup, Elixir, Suspension and emulsion Iraqi J Pharm Sci , Vol.17 (2) ,2008 Abuse of Androgen 9 Effects of Abuse of Anabolic Androgenic Steroids on Iraqi Athletes Al-Muhannad M. Taher* , May S. Al-Sabbagh1,** and Dawser K. Al-Khashali*** * Pharmacist at Yarmook Hospital , Baghdad , Iraq ** Department of Clinical Pharmacy , College of Pharmacy , University of Baghdad, Baghdad , Iraq *** Department of Pharmacology and Toxicology ,College of Pharmacy ,University of Baghdad, Baghdad ,Iraq Abstract Anabolic androgenic steroids (AAS) are man-made derivatives of the male sex hormone testosterone, originally designed for therapeutic uses to provide higher anabolic potency with lower androgenic effects. Increasing numbers of young athletes are using these agents illicitly to enhance physical fitness, appearance, and performance despite their numerous side effects and worldwide banning. Today, their use remains one of the main health problems in sports because of their availability and low price. The present study focuses on investigating the adverse effects of anabolic androgenic steroid abuse on sex hormones, liver and renal function tests, fasting glucose levels and lipid metabolism in Iraqi male recreational bodybuilders. We have recruited fifteen male bodybuilders (age 19-32 years) and an equal number of healthy non-obese, non-AAS-using sedentary controls. Serum hormones (luteinizing hormone (LH), follicle stimulating hormone (FSH), total testosterone, and prolactin), liver function indices (serum alanine aminotransferase (ALT), aspartate aminotransferase(AST), alkaline phosphatase(ALP), total and direct bilirubin), renal function parameters (serum creatinine and urea), lipid profile and serum glucose levels were measured. Abuse of AAS was associated with significant decreases (p< 0.005) in serum levels of LH (66.9%), FSH (49.8 %) and testosterone (63.7%) together with significant increases (p< 0.05) in prolactin concentrations (49.8%) in AAS-using bodybuilders compared to sedentary controls. Anabolic androgenic steroids- using athletes had significantly higher (p< 0.05) circulating levels of total bilirubin (116.3%), direct bilirubin (127.6%), aspartate (1752.9%) and alanine (263.1 %) transaminases than those of sedentary control subjects. Serum alkaline phosphatase levels were not significantly different (p> 0.05) between the two groups. Concerning renal function, AAS-using athletes had significantly higher serum concentrations of creatinine (28.6%) and urea (21.3%) than sedentary controls. Meanwhile, AAS abuse was accompanied by atherogenic lipid profile. Anabolic androgenic steroids -using athletes had significantly higher (p< 0.05) serum levels of triglycerides (TG) (45.6%), low density lipoprotein- cholesterol (LDL-C) (26.0%) and very low density lipoprotein-cholesterol(VLDL-C) (45.6%) together with significantly lower serum concentrations of high density lipoprotein-cholesterol (HDL-C) (31.3%) than sedentary controls. Serum total cholesterol (TC) and fasting glucose concentrations were not significantly different (p> 0.05) between the two groups. The results presented in the study confirm that abuse of AAS induces unfavorable body functions and undesirable side effects. Therefore, efforts should be sought against use of these compounds outside the therapeutic frame. Key words: anabolic steroids, athletes, bodybuilding, exercise. ةصالخلا ( و بلوع ى د قل دصت صا تصث تدةُ ي Testosterone اد تدريخلات ادذلق دو رح تاقت ادير ةي ادبلرج اديوريت لا ) ( لي ترضر يا ح .ابلر ادلعانقت يي يتلا ادرخقردد ادبخ خاذصةي تصث اوقكح .ي ربد اديرلذقت Testosterone قي ادا ) لليي ا رخغ كذح لح ا اخل صرة ليريع اد لد تصث ادرحي ادتربخرات اديتلرعن نةل يتراريق ادلق ذدو ي تصث ادرحي يرد اديلجيقت اويديذدو ي ادليقت ادرلة دو تاةلقت و قع و تصث ختوقكث ربد اديةا يي ختقمر ليق .خوتذر اونتالال اداقكا ديبد اديرلذقت ذي ادرخقردد يري قلي ادرخقرو لح ادو ر ادرلخا .ابمرخع ربد ادلعانو ي و ييع دتاددي اا درات اوقكح ربد اد تدريخلات ادذلق دو تصث تةت ادير ة قت لح ي ادلل ي يظق و ادلذل ي ادلصث ي تةت اةتخد اد رةل ي تةت اد لر لح ( عخقردقل ختوقكةي اد تدريخلات ادذلق دو ي 15 ي ادلل ديليةتو يقعنح عخقرو ليقل اام قل .امتيصع ربد ادلعانو تصث ) تتيلت كري ادتاددي تصث دقط تةت ( تاةتقل و خيقعنةي عخقرو ليقل اام قل ي و ختوقكةي اد تدريخلات ادذلق دو.15) ,Total and direct bilirubin( ي يظق و ادلذل )LH, FSH, Testosterone, and prolactinادير ة قت لح ي ادلل ) SAST, SALT, and alkaline phosphatase( ي يظق و ادلصث )S creatinine and S urea ي تةت اةتخد اد رةل لح ) ( لقيرقلو دث ارلد اد لر لح ادلل .يظير ارصدي ادذدق قت اا درال بي TC, TG, HDL-C, LDL-C, and VLDL-C ي ادلل ) . ديو ولةخو ياررو دتوقكح اد تدريخلات ادذلق دو تصث ارلد ادير ة قت لح ي ادلل 1 Corresponding author : E-mail : may_sabbagh @ yahoo.com Received : 17/6/2008 Accepted : 16/9/2008 Iraqi J Pharm Sci , Vol.17 (2) ,2008 Abuse of Androgen 10 ( ل ةعن ولةخو prolactin( ي عافد تةت )LH, FSH, and total testosterone ندا دةنا افقي ولةج لح ارالد ادا ) Total and direct bilirubin, SASTدلت توقكح اد تدريخلات ادذلق دوا ارال بد د تخق ن ولةخو ياررو لح تةخقت ادا ) and SALT( د تلل يمة يج لري ولةج لح تةت ادا )alkaline phosphatase لد اديليةتتد .يظيرت ادلعانو يخضقل ) ( لح ي ادلل دلت توقكح اد تدريخلات ادذلق دو لقيرقلو دث عافقى ولةج لح تةت creatinine and urea عافقى تةت ادا ) ( لح ي ادلل .دي ختي منجو يج لري ولةج لح HDL-C( ي ا افقي ولةج لح تةت )TG, LDL-C, and VLDL-Cادا ) ( ي اد لر لح ي ادلل لد اديليةتتد .لح رةر ادلتق ادتح يلرتايق ربد ادلعانوا خيلللق انتلتق يي نتالال TC تةت ) اد تدريخلات ادذلق دو ىقع كقع ادوم خر ج دث ن ةل ضقتفقت ار ر نصذقل تصث يظق و م ي اي قي .يامذلق خلي لح لبل قعت ادلية يمي ااصدي يي لد انتالال ربد اديرلذقت ىقع اوكقع ادوممح . Introduction Self-administration of large doses of anabolic androgenic steroids ( AAS ) by athletes to obtain a well-shaped body and to increase muscular strength has been increasingly noticeable since the 1950s.1,2 Anabolic androgenic steroids are widely used by professional and recreational athletes as well as nonathletes.3 Abuse of AAS is not limited to male adults but also reported in female adults as well as adolescents of both sexes.1 Every tissue in the body, including the brain, has androgen receptors; therefore, AAS exert systemic as well as psychological effects.4 Anabolic androgenic steroids have been linked with a wide range of unwanted adverse effects. These effects may range from physically unattractive, such as acne and gynecomastia in males, to serious and life threatening, such as cardiovascular diseases and hepatic carcinoma. Most effects are reversible upon withdrawal.2,5 Because of their widespread use, many side effects may turn out to be significant risk factors when considering public health. Increased risk of violent death was reported among AAS abusers from impulsive, aggressive behavior, or depressive symptoms.6 Anabolic androgenic steroids have been taken in cycles. Traditionally, AAS users combine two or more different drugs, mixing oral and injectable AAS. They begin a cycle with a low dose of AAS and slowly increase the dose and then the dose is tapered to zero.3 Doses taken by abusers can be 10-100 times higher than those used for medical purposes. The aim of the present study was to evaluate the changes in serum sex hormones, liver and renal function indices, glucose level and lipid metabolism in Iraqi male anabolic androgenic steroid abusers. Material,Subjects and Methods Participants Fifteen non-obese male bodybuilders aged 19-32 years (mean 23.27 ± 3.73) were recruited at local gyms in Baghdad city . Bodybuilders were interviewed concerning their health (current diseases and family diseases), consumption of high protein diet, regular exercise, lifetime steroid abuse, pattern of use, and whether other supplements and drugs being used. Exclusion criteria included smoking, alcohol consumption, presence of chronic medical conditions (diabetes mellitus, liver or kidney disorders) and the use of growth hormone. Anabolic steroid abusers were selected if they were currently using AAS. Table (1) summarizes AAS used with their doses and duration of use prior to sample withdrawal. . All of the participants took androgens in cycles and none was taking AAS in a continuous pattern. Cycles were 4-8 weeks in duration separated by suspension periods of 4-12 weeks. A control group of healthy sedentary males (n=15) with a mean age of 22.1 ± 3.65 years were recruited from the community and historically had not ever used anabolic steroids. Unfortunately, absence of bodybuilding controls was evident because, as was found, persons who continue to exercise regularly use AAS routinely. The two groups of volunteers were comparable with respect to their age and height. However, the study group taking AAS had significantly greater mean weight and BMI. Sample collection Subjects' weight and height were measured using a balance beam and a vertical ruler. Participants were asked to fast for 12 hours and avoid heavy physical exercise before attending for sample collection. One blood sample was collected from each volunteers by venipuncture between 08:00-10:00 AM. A total of 15 ml blood was obtained and placed in EDTA-free tubes to be centrifuged for 5-10 minutes at 3000 rpm. Serum was then divided into several 1.5 mL Eppendorf tubes and stored at (-20oC) until time for the assay. Laboratory measurements Serum concentrations of LH, FSH, prolactin and total testosterone were determined by immunofluorometric assays on a mini VIDAS analyzer 7,8 . Liver and renal function indices were measured by colorimetric methods using the commercially available kits9,10,11,12,13,14,15. Serum total cholesterol, triglyceride, high- density lipoprotein cholesterol and fasting glucose concentrations were determined by Iraqi J Pharm Sci , Vol.17 (2) ,2008 Abuse of Androgen 11 routine autoanalyzer methods16,17,18,19. Serum low- and very low-density lipoprotein cholesterol concentrations were determined through the Friedwald formula20. Table 1 : Dose and duration of AAS use for fifteen body builders Statistical analysis Data were expressed as mean ± SD (standard deviation). Unpaired t-test was employed to examine the difference in means of the AAS-using group and sedentary controls. Pearson correlation (r) was used to analyze the relationships between total dose of AAS used prior to sample withdrawal and the hormonal and biochemical changes. A level of p value < 0.05 was considered statistically significant difference. Results Serum hormone levels Serum LH, FSH, and total testosterone levels in AAS-using bodybuilders were significantly lower (p < 0.005) than those in the sedentary controls (66.9%, 49.8%, and 63.7% respectively). However, AAS-using bodybuilders had significantly higher (p< 0.05) prolactin concentrations (49.8%) than sedentary controls (table 2). Subject no, AAS used Route of administration Dose (mg/kg) Duration of prior sampling(wk) Total dose received (mg) 1 Methandrostenolone O 175 6 1350 Nandrolone decanoate P 50 2 Methandrostenolone O 140 4 660 Nandrolone decanoate P 25 3 Methandrostenolone O 140 4 760 Nandrolone decanoate P 50 4 Methandrostenolone O 245 4 980 5 Methandrostenolone O 210 4 840 6 Testodterone proponate P 50 3 450 Nandrolone decanoate P 100 7 Mthenolone O 20 3 660 Oxymetholone O 150 Nandrolone decanoate P 50 8 Methandrostenolone O 175 6 1350 Nandrolone decanoate P 50 9 Methandrostenolone O 140 4 760 Nandrolone decanoate P 50 10 Methandrostenolone O 175 6 1650 Nandrolone decanoate P 100 11 Methandrostenolone O 245 4 2780 Sustanon P 250 Nandrolone decanoate P 200 12 Methandrostenolone O 175 4 1800 Nandrolone decanoate P 25 Sustanon P 250 13 Methandrostenolone O 175 4 1100 Nandrolone decanoate P 100 14 Methandrostenolone O 245 6 2670 Nandrolone decanoate P 200 15 Methandrostenolone O 245 6 2670 Nandrolone decanoate p 200 Iraqi J Pharm Sci , Vol.17 (2) ,2008 Abuse of Androgen 12 Table 2: Effects of anabolic androgenic steroids on serum hormones in AAS-using bodybuilders compared to sedentary controls. Variable Sedentary Controls N=15 (mean ±SD) AAS-using BB N=15 (mean ± SD) LH (mIU/mL) 3.11 ± 0.94 1.03 ± 1.09** FSH (mIU/mL) 2.93 ± 1.30 1.47 ± 0.87** Testosterone (ng/mL) 7.47 ± 1.95 2.71 ± 1.75** PRL (ng/mL) 14.44 ± 6.19 21.63 ± 8.88* Values expressed as mean + SD The P- values refer to the differences from the control group. * : P < 0.05 significant difference between the two groups. ** : P <0.005 highly significant difference between the two groups. N = no. of subjects. Table 3: Effects of anabolic androgenic steroids on liver function tests in AAS-using bodybuilders compared to sedentary controls. .Variabl e Sedentary Controls N=15 (mean ± SD) AAS-using BB N=15 (mean ± SD) Total bilirubin (mg/dL) 0.49 ± 0.63 1.06 ± 0.74* Direct bilirubin (mg/dL) 0.29 ± 0.41 0.66 ± 0.47* ALP (U/L) 80.20 ± 20.26 93.20 ± 37.19 ns AST (U/L) 1.21 ± 4.69 22.42 ± 27.02** ALT (U/L) 4.69 ± 6.52 17.03 ± 17.02* Values expressed as mean + SD The P- values refer to the differences from the control group. * : P < 0.05 significant difference between the two groups. ** : P <0.005 highly significant difference between the two groups. ns : non significant (P > 0.05 ) significant difference between the two groups N = no. of subjects. Liver function parameters Anabolic androgenic steroids-using bodybuilders had significantly higher (p< 0.05) circulating levels of total and direct bilirubin (116.3% and 127.6% respectively) than sedentary controls. Anabolic androgenic steroids -using bodybuilders had significantly higher serum AST (1752.9%, p< 0.005) and ALT (263.1%, p< 0.05) activities than sedentary controls (table 3). Serum alkaline phosphatase levels were not significantly different (p> 0.05) between the two studied groups. Renal function tests (Table 4) demonstrates that AAS-using bodybuilders had significantly higher circulating levels of creatinine (28.6%) and urea (21.3%) (p< 0.005 and p< 0.05, respectively) than sedentary control group. Table 4: Effects of anabolic androgenic steroids on renal function tests in AAS- using bodybuilders compared to sedentary controls. Values expressed as mean + SD The P- values refer to the differences from the control group. * : P < 0.05 significant difference between the two groups. ** : P <0.005 highly significant difference between the two groups. N = no. of subjects. Lipid profile and fasting serum glucose Circulating levels of HDL-C were significantly lower (p< 0.005) (31.3%) in AAS-abusing bodybuilders than sedentary controls. Table (5) indicates that AAS-using bodybuilders had significantly higher (p< 0.05) serum levels of triglycerides (45.6%), LDL-C (26.0%) and VLDL-C (45.6%) than sedentary controls. Serum total cholesterol and glucose concentrations were not significantly different (p> 0.05) between AAS-using bodybuilders and sedentary control subjects. Variable Sedentary Controls N=15 (mean ± SD) AAS-using BB N=15 (mean ± SD) Cr (mg/dL) 0.84 ± 0.19 1.08 ± 0.21** Urea (mg/dL) 38.07 ± 8.58 46.18 ± 14.37* Iraqi J Pharm Sci , Vol.17 (2) ,2008 Abuse of Androgen 13 Table 5: Effects of anabolic androgenic steroids on lipid profile and serum glucose in AAS-using bodybuilders compared to sedentary controls Variable Sedentary Controls N=15 (mean ± SD) AAS-using BB N=15 (mean ± SD) Cholesterol (mg/dL) 153.80 ± 21.62 171.20 ± 37.19 ns TG (mg/dL) 74.93 ± 42.84 109.13 ± 57.50* HDL-C (mg/dL) 44.60 ± 7.15 30.67 ± 7.64** LDL-C (mg/dL) 94.21 ± 21.13 118.71 ± 34.76* VLDL-C (mg/dL) 14.99 ± 8.57 21.83 ± 11.50* FSG (mg/dL) 83.20 ± 17.63 89.93 ± 9.16ns Values expressed as mean + SD The P- values refer to the differences from the control group. *: P < 0.05 significant difference between the two groups. **: P <0.005 highly significant difference between the two groups. ns non significant (P > 0.05 ) significant difference between the two groups N = no. of subjects. Adverse effects Participants were asked questions about unusual adverse effects that would be felt during an AAS cycle and the most common reported side effects were aggression, changes in libido, acne formation, headaches, and premature hair loss as summarized in table 6. Table 6: Adverse effects reported by AAS- using bodybuilders. Adverse effect No. of Subjects N=15 % Unusual aggression 8 53 Changes in libido 6 40 Acne 3 20 Headaches 4 27 Hair loss 2 13 Discussion Subjects of this study use independently anabolic androgenic steroids mainly to enhance external physique. Besides being an unethical practice, abuse of AAS has been associated with several health risks and various adverse effects which affect almost all organs and systems of the human body. Anabolic androgenic steroids-using bodybuilders had significantly lower (p< 0.005) serum levels of LH, FSH and total testosterone than sedentary controls (table 2). The results were consistent with those reported by Holma et al21 who observed reduced serum levels of LH, FSH and testosterone in athletics during a course of oral intake of methandrostenolone (15 mg/day). Exogenously administered anabolic androgenic steroids exert a negative feedback on the secretion of gonadotrophins, mostly attributed to a direct effect on the hypothalamus to decrease secretion of GnRH. This in turn causes a corresponding decrease in secretion of both LH and FSH and eventually biosynthesis and release of testosterone from the testes.22 In addition, anabolic androgenic steroids may produce local suppressive effects on the testes and on adrenal androgen production.23 Serum prolactin levels in AAS- using bodybuilders were significantly higher than those in sedentary controls (p < 0.05) (table 2). Data reported by Stoffel-Wagner et al24 and Leibenluft et al25 were consistent with the interpretation that testosterone and/or its metabolites facilitate the secretion of prolactin. Estrogen is known to stimulate prolactin release from the anterior pituitary.26 Non- aromatizable AAS (stanozolol and methandrostenolone) were reported to activate estrogen receptors through interaction of either the parent compound or its metabolites indicating a possible mechanism for increased prolactin secretion.27 The available data in the corresponding literature on the influence of exogenously administered androgens on prolactin serum level were found controversial. Serum total and direct bilirubin levels in AAS- using bodybuilders were significantly higher (p< 0.05) than those in sedentary controls (table 3). Androgens can selectively interfere with bile excretion by the liver. Canalicular bile plugs were observed after treatment with methyltestosterone, oxymetholone, mestranol, and norethandrolone.28 Cases of cholestatic jaundice have been recorded in patients therapeutically using or athletes abusing AAS (especially 17 alkylated agents).29,30 Serum AST and ALT levels in AAS-using bodybuilders were significantly higher (p< 0.005 and p< 0.05, respectively) than those in sedentary controls (table 3). Canalicular cholestasis is characterized by mild hepatocellular injury and release of transaminases leading to mild elevations in serum levels of these enzymes.29 However, since sustained weightlifting alone can result in mild elevations in serum transaminase Iraqi J Pharm Sci , Vol.17 (2) ,2008 Abuse of Androgen 14 activities31,32, the increase in serum transaminases may be attributed to mild hepatocellular damage, muscle injury, or both. Urhausen et al33reported that serum transaminase levels were significantly higher (p< 0.001) in anabolic androgenic steroid- abusing athletes than bodybuilders who stopped using anabolic steroids for at least a year. A non-significant difference in serum ALP levels was found between the two studied groups (p > 0.05) (table 3). These results are consistent with those reported by O'Sullivan et al34 who observed no significant difference in alkaline phosphatase activities between anabolic steroid users and potential or past users. Anabolic androgenic steroids can induce cholestasis without elevating alkaline phosphatase levels. ALP activity is usually less than threefold elevated and often is normal.35 Anabolic androgenic steroids -using athletes had significantly higher serum creatinine (p< 0.005) and urea (p< 0.05) levels than sedentary controls (table 4). Studies in rat models provide evidence that, compared with females, aging males exhibit decreased glomerular filtration rate and develop glomerular injury, glomerulosclerosis and proteinuria.36 In addition, cases of acute renal failure had been reported in clinical patients or bodybuilders administering anabolic steroids.29,37 However, in the present study, we cannot ignore other factors that may have participated in deteriorating renal function parameters in anabolic androgenic steroid-using athletes e.g. consumption of high protein diet. Serum concentrations of triglycerides, VLDL-C and LDL-C were significantly higher in AAS- useres (p< 0.05) than those in controls (table 5). The rise in serum levels was positively correlated with the intake of AAS. Anabolic androgenic steroids can elevate serum levels of triglycerides by 40-50% in bodybuilders and other power-training athletes.38 Kiraly39in 1988 reported similar results while studying the effects of large doses of testosterone and other anabolic androgenic steroids on serum lipids during a 12 week strength-training period. Elevated serum triglyceride (p< 0.05) levels were found with decreased serum HDL-C (p< 0.005). Serum LDL-C levels were significantly higher (p< 0.05) during steroid intake in studies reported by Fröhlich et al40 and Palatini et al41. Anabolic androgenic steroids -users had elevated levels of apolipoprotein B, a component of both LDL and VLDL.42,43 Conversely, circulating levels of LDL-C and VLDL-C were not significantly different while using AAS in studies reported by Sader et al44 and Singh et al45, respectively. A non- significant difference in serum total cholesterol levels was found between the two studied groups (p > 0.05) (table 5). Our results confirm those reported by many studies40,42 . Anabolic androgenic steroids effects on plasma lipids have been reported to be unpredictable and depend on the dose, route of administration, and type of AAS (aromatizable or not).46 Low dosages have been associated with hypolipemic response, while high doses have had opposite effects.47,48 Serum HDL-C levels in AAS-using bodybuilders were significantly lower than those in sedentary controls (p < 0.005) (table 4). The postulated mechanism to explain anabolic steroid-induced alteration in serum HDL-C levels is an increase in hepatic triglyceride lipase activity, an enzyme responsible for catabolizing HDL with its phospholipase activity.49 In addition, apolipoprotein A-1, a major component of HDL particle, was reported to be decreased by AAS.42,45 The results obtained in the present study showed absolute consistency with the available data. A non-significant difference in serum glucose levels was found between the two studied groups (p > 0.05) (table 5). The influence of testosterone and anabolic steroids on glucose metabolism was found controversial. Results of the present study agree with those reported by Friedl et al50 who observed no alterations in fasting serum glucose in normal men treated with testosterone enanthate or nandrolone decanoate for 6 weeks. On the other hand, Cohen and Hickman51 concluded that power lifters taking high dose (mean 200 mg/day) of anabolic androgenic steroids had diminished glucose tolerance compared to non-steroid using athletes, obese sedentary men, or non-obese sedentary men. Such controversy in the corresponding literature may be explained to be due to differences in doses used. Higher AAS doses reduce insulin sensitivity and impair glucose tolerance.46 Although AAS doses used by subjects in the present study were considered to be high; they were much smaller than those used by athletes in Cohen and Hickman51 study. The most common side effects reported by our subjects were unusual aggression (53%), changes in libido (40%), acne formation (20%), headaches (27%) and premature hair loss (13%) (table 6). Perry et al52 reported that anabolic steroid using weightlifters were more aggressive than nonusers according to different psychiatric scores. Changes in libido appear to be the most common adverse effect reported in a group of present and past AAS users (approximately 61%).34 Reports do indicate that toward the end of AAS cycle, some males may experience loss of libido.53 Acne was also found very Iraqi J Pharm Sci , Vol.17 (2) ,2008 Abuse of Androgen 15 common side effect among anabolic steroid users as reported by O'Sullivan et al.34 Increases in acne formation is related to stimulation of sebaceous glands resulting in a more oily skin.34 Premature hair loss does not appear to be very common. It is likely that androgenic alopecia as a result of AAS use is more prevalent in males who are genetically predisposed to balding.54 Headaches are also not very common among AAS abusers. O'Sullivan et al34 reported only 9% of AAS using athletes may develop headaches. However, the exact mechanism is unknown. Conclusion In conclusion, anabolic androgenic steroid abuse lowered serum concentrations of pituitary gonadotrophins, LH and FSH, and testosterone. Increased levels of prolactin were also manifested. Abuse of anabolic steroids probably causes cholestasis, however, with mildly elevated liver enzymes. In addition, effect of anabolic androgenic steroids on renal function indices was not well established indicating that other factors, such as high protein diet, may have contributed in elevation of blood urea and creatinine levels. Finally, lipid profile was impaired toward evidenced dyslipidaemia. References 1. Lombardo JA. Anabolic-androgenic steroids. NIDA Res Monogr 102. 1990, p 60-73. 2. Rogol AD, Yesalis CE. Anabolic- androgenic steroids and athletes: What are the issues? J Clin Endocrinol Metab. 1992; 74(3): 465-469. 3. Bagatell CJ, Bremner WJ. Androgens in men - Uses and abuses. NEJM. 1996; 334(11): 707-715. 4. Kuhn CM. Anabolic steroids. 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