Publications by authors named "P Prasada-Rao"
This study reports annual cyclic changes in the plasma levels of sex hormone binding globulin (SHBG), sex steroids (E(2), estradiol; T, testosterone; P, progesterone) and protein (PRT) in correlation with reproductive phases in both sexes of an Indian major carp, Labeo rohita. Plasma SHBG, E(2), T and PRT levels in females and SHBG and T levels in males showed steady increases (p<0.005) in parallel with the gonadosomatic index (GSI) escalation in the preparatory and prespawning phases attaining peak levels before spawning.
View Article and Find Full Text PDFThe nonapeptides, oxytocin and arginine vasopressin, play an important role in mammalian social and reproductive behavior. Using immunocytochemical procedures, we identified oxytocin-immunoreactive neurons in the frontal and auditory cortices, limbic areas such as the medial septal nucleus, horizontal limb of the diagonal band and the amygdala. Only arginine vasopressin neurons were present in the bed nucleus of the stria terminalis.
View Article and Find Full Text PDFThe study was carried out to investigate the prevalence and correlates of sexual risk behaviour among psychiatric inpatients in India. Consecutive inpatients (n = 618) were assessed using a structured interview and standardized measures. Women were more likely to be sexually active (50%) than men (36%), but equally likely (6% vs 5%) to engage in risky behaviour.
View Article and Find Full Text PDFObjective: To study the frequency of occurrence as well as the course and variations in the communicating branch of the musculocutaneous nerve and the relationship of the communicating branch to other structures in the upper arms of Zimbabwean subjects.
Design: Cross sectional anatomical dissections.
Setting: Department of Anatomy,University of Zimbabwe Medical School, Harare, Zimbabwe.
Article Synopsis
- The study examines the distribution of two types of goldfish gonadotropin-releasing hormone (GnRH) receptors, GfA and GfB, in the brain using immunohistochemistry and in situ hybridization.
- GfA receptors are widely distributed across various brain regions, including the olfactory bulbs and hypothalamus, while GfB receptors are found in a more limited area, mainly in the telencephalon and hypothalamus.
- The widespread presence of the GfA receptor, especially in areas linked to behavior, suggests a significant role in the actions of GnRH peptides in goldfish.