The response of nucleus preopticus neurosecretory cells to ovarian pressure in the teleost, Clarias batrachus (Linn.).
The changes undergone by the neurosecretory cells of the nucleus preopticus (NPO) were investigated histologically and immunocytochemically following pressure stimulation of the ovaries in the teleost, Clarias batrachus. Application of intraovarian pressure of 10 mm Hg revealed marked hypertrophy of the cells, while pressures of 20 and 30 mm Hg resulted in hypertrophy and exhaustion of the cells. No changes were observed when the treatment was preceded by transection of the spinal cord. The results suggest the existence of a pressure-excitable neural pathway from the ovary capable of eliciting profound cytological changes in the NPO.
Department of Pharmaceutical Sciences, Nagpur University, India.
N
N
Subhedar
N S
NS
Rama Krishna
M K
MK
Deshmukh
D000818:Animals; D002397:Catfishes / Q000502:physiology*; D005260:Female; D006984:Hypertrophy; D007150:Immunohistochemistry; D009489:Neurosecretion; D010053:Ovary / Q000502:physiology*; D011301:Preoptic Area / Q000473:pathology / Q000502:physiology*; D011311:Pressoreceptors / Q000502:physiology*