ผลของสารสกัดกระเทียมต่อระดับฮอร์โมนเทสโทสเตอโรนในซีรั่ม และคุณภาพของตัวอสุจิในหนูแรทเพศผู้ / รัตนา พิเคราะห์งาม = Effects of garlic extract on serum testosterone level and sperm quality in adult male rats
Effects of garlic extract on testosterone secretion and sperm qualifies were studied in adult male rats. Garlic extracted by chloroform at doses of 80, 160 and 320 mg/kg were daily forced-fed to animals for 30 days. Serum cholesterol, triglyceride, LDL, HDL and testosterone levels were assayed : the density, motility, viability and fertility of sperms were studied. Testosterone secretion from mouse's Leydig's cell were conducted in vitro. The treatment at dose of 160 mg/kg decreased serum cholesterol triglyceride, LDL, testosterone levels, and sperm qualities. The dose or 160 mg/kg dramatically decreased serum cholesterol (50.05±4.19, 56.66±2.97, 53.60±5.633 mg/dl) were observed compare to that of the control group (60.41±4.34 mg/dl) ; The decrement of triglyceride found at D10>D20>D30 were 43.18±7.l4>38.17±6.68>32.78±6.22 mg/dl whereas that of the control group was 75.00±2.15 mg/dl ; serum LDL 6.59±0.36>5.75±1.33>5.58±l.79 mg/dl were different from that of the control group (12.62±0.89 mg/dl). On the other hand serum HDL relatively increased in 10 consecutive days (41.45±6.61< 44.36±3.90<45.36±6.10 mg/dl) ; Serum testosterone (2098±149.00>2006.48±l09.28 J >1920.48±202.38 pmol/L were relatively lower than that of the control group (2540.59±224.58 pmol/L). The 160 mg/kg extract reduced the sperm density from 85±12.86 to 30±11.30 x 106 cell/10 ul. In addition, the above dose minimized the sperm viability from 76 to 24% and decreased the implantation by 50% The combination of garlic extract 160 mg/kg and testosterone 50 ug restored the implantation by 3 fold compare to the treatment by sole extract. Besides, the extract at dose of 0.125 mg partly inhibited the secretion of testosterone levels from mouse's Leydig's cell.