ABSTRACT
The effects of noise on gastric secretion and ulceration in male albino rats were investigated. Forty-eight rats were used and divided into three main groups i.e. young, adult and senile. Each group was subdivided into control and experimental subgroups. The experimental animals were exposed to noise stress [100 dB] one hour daily for four weeks. The results showed that noise decreased the volume and total acid output in all animal groups and increased the titratable acidity in young group. Noise increased the ulcer index in adult and senile groups and led to vascular congestion, inflammatory cell infiltration, glandular deformity, mucosal atrophy and musculosa hypertrophy in the stomach of all groups
Subject(s)
Animals, Laboratory , Stress, Mechanical , Gastric Mucosa , Gastric Juice , RatsABSTRACT
Sixty adult albino rats [20 males and 40 females] were used to study the effect of sexual excitation on the male genital system. Rats were divided into two equal groups i.e. control and experimental. Rats were exposed to continuous sexual excitation for one month. Hormonal studies showed imbalance in the pituitary gonadotrophic and corticotrophic hormones as well as testosterone and cortisol. Histological studies showed severe affection of the secretory sex organs [testes, seminal vesicles and prostate] with no significant affection of the penis and vas deference