Materials and methods
Animals and care
28 Adult male Syrian mice (10 weeks old, 35 g) were divided
into 4 groups. Group 1 was included diabetic mice that received a
single dose Streptozocin (STZ) (200 mg/kg) intra-peritoneally (ip).
Group 2 consisted diabetic mice that received vitamin C (10 mg/kg/
daily, ip). Mice in group 3 received vitamin C (10 mg/kg/daily, ip)
and group 4 serving as the control group without any treatment.
The mice were held in separate cages about 35 days (about one
duration of spermatogenesis) and were housed in a controlled
environment with a temperature ranged 25 2 8C and mean
relative humidity of 50 5%. They were fed ‘‘mice chow’’ and had
access to water ad libitum. The experimental proposal was approved
by our university ethics committee.
Streptozotocin treatment and induction of diabetes
Diabetes was induced via a single i.p. injection of buffered
solution (0.1 mol/l of citrate, pH 4.5) of STZ (200 mg/kg). Diabetes
criterion was hyperglycemia (blood glucose >250 mg/dl) (range
250–700) measured 72 h post injection [3,8].
Epididymal sperm preparation
Animals were anesthetized by ketamine and xylazine (150 mg/
kg and 10 mg/kg, respectively) and their dissected cauda epididymis
were placed in 1 ml of pre-warmed Ham’s F10 medium for
30 min. Gentle tearing was done to swim-out spermatozoa into
culture medium [3].
Materials and methodsAnimals and care28 Adult male Syrian mice (10 weeks old, 35 g) were dividedinto 4 groups. Group 1 was included diabetic mice that received asingle dose Streptozocin (STZ) (200 mg/kg) intra-peritoneally (ip).Group 2 consisted diabetic mice that received vitamin C (10 mg/kg/daily, ip). Mice in group 3 received vitamin C (10 mg/kg/daily, ip)and group 4 serving as the control group without any treatment.The mice were held in separate cages about 35 days (about oneduration of spermatogenesis) and were housed in a controlledenvironment with a temperature ranged 25 2 8C and meanrelative humidity of 50 5%. They were fed ‘‘mice chow’’ and hadaccess to water ad libitum. The experimental proposal was approvedby our university ethics committee.Streptozotocin treatment and induction of diabetesDiabetes was induced via a single i.p. injection of bufferedsolution (0.1 mol/l of citrate, pH 4.5) of STZ (200 mg/kg). Diabetescriterion was hyperglycemia (blood glucose >250 mg/dl) (range250–700) measured 72 h post injection [3,8].Epididymal sperm preparationAnimals were anesthetized by ketamine and xylazine (150 mg/kg and 10 mg/kg, respectively) and their dissected cauda epididymiswere placed in 1 ml of pre-warmed Ham’s F10 medium for30 min. Gentle tearing was done to swim-out spermatozoa intoculture medium [3].
การแปล กรุณารอสักครู่..