Short-Term Effects of Vasoligation upon Ptasma Follicle-stimulating Hormone, Luteinizing Hormone, and Prolactin in the Adult Rat: Further Evidence for a Direct Neural Connection between the Testes and the Central Nervous System1

ABSTRACT Serum and pituitary levels of luteinizing hormone (LH) and follicle stimulating hormone (FSH) were measured by radioimmunoassay in intact and castrated juvenile (21 days) and adult male rats. The effect of total starvation upon the gonadotrophin response to castration was also investigated in adult animals. In rats castrated at 21 days of age, serum and pituitary levels of LH were elevated by 7 days and increased progressively for 4 weeks. Serum concentrations of FSH also increased within 7 days and remained stable thereafter. Pituitary FSH levels initially declined and then increased. In adult animals serum LH and FSH concentrations increased after castration. Pituitary LH values also increased, while FSH levels remained stable for 14 days after operation. Serum FSH concentrations were consistently decreased in starved-intact animals. Starvation partially inhibited castration-induced release of LH without affecting pituitary LH or FSH synthesis or FSH release.

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Short-term effect of Tramadol injection on the serum levels of Follicle Stimulating Hormone, Luteinizing Hormone and Testosterone in Male Sahel Goats in Maiduguri, Nigeria

International Journal of Pharmacology and Toxicology ◽

10.14419/ijpt.v7i1.28585 ◽

2019 ◽

Vol 7 (1) ◽

pp. 6

Author(s):

Babagana Bako ◽

Sani Malami ◽

Garba Uthman Sadiq ◽

Lawan Gana Ashiekh

Keyword(s):

Luteinizing Hormone ◽

Follicle Stimulating Hormone ◽

Serum Levels ◽

Term Effect ◽

Control Group ◽

High Dose ◽

Short Term ◽

Short Term Effect ◽

Group 4 ◽

Stimulating Hormone

Tramadol is a synthetic analogue of codeine. Its mood elevation property and sex enhancement potentials are the main reason for its abuse. The aim of the study was to determine the short-term effect of tramadol administration on Follicle Stimulating Hormone (FSH), Luteinizing Hormone (LH) and Testosterone (TEST) levels in Male Sahel Goats. This was an experimental study conducted from 1st October 2017 to 12th November 2017 at the Livestock Teaching and Research Farm, University of Maiduguri, Maiduguri, Borno State Nigeria involving 20 Male Sahel Goats. The goats were divided in to 4 groups of 5 each; group 1 served as control and groups 2, 3 and 4 were injected intramuscularly with 4 mg/kg (low dose), 8 mg/kg (medium dose) and 12 mg/kg (high dose) of Tramadol respectively. The injections were given intramuscularly, 3 times a week for 4 weeks. Blood samples were collected to determine the serum levels of FSH, LH and TEST at 0, 1 week, 2 weeks, 3 weeks and 4 weeks of tramadol injections. The Mean±SD of the hormones were computed using SPSS 20. The difference in mean was compared using t test and ANOVA with p < 0.05 set for statistical significance. The baseline levels of FSH, LH and TEST in Male Sahel Goat in Maiduguri were 2.91±5.74 Miu/ml, 0.29±0.72 Miu/ml and 3.92±6.39 ng/ml respectively. Only the goats in group 4 showed a significant increase in serum FSH and LH by the 4th week (P=0.01 and 0.03 respectively) while no significant change was noted in the other groups. The was a decline in the level of Testosterone from 1st week through 4th week in all the experimental group but the level in the control group remain fairly constant throughout the experiment. The decline is inversely proportional to the dose of tramadol injection and most marked in group 4.High dose and prolonged used of Tramadol should be avoided because of side effects of Hypergonadotrophic hypogonadism.

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