title: Adrenomedullary and glycemic alterations following diverse stress in soft-shelled turtles Lissemys punctata punctata Bonnoterre.
abstract: The objective of the current investigation was to study adrenomedullary and glycemic responses to stress in soft-shelled turtles, Lissemys p. punctata. Dehydration (7 days) and formalin (formaldehyde 1%, 0.1 mL/100 g body wt. daily for 7 days) stress-stimulated adrenomedullary activity at histological (by increasing the nuclear diameter and degranulation of chromaffin cells) and hormonal levels (by elevations of norepinephrine and epinephrine concentrations) with hyperglycemia in turtles. But salt loading (NaCl: 1%, 1 mL/100 g body wt. daily for 7 days) had no significant effect on adrenomedullary activity or glycemia presumably owing to the nonresponsiveness of adrenocortical activity to salt stress in turtles. It is suggested that dehydration and formalin stresses might have exerted their actions through the hypothalamo (CRF)-hypophysial (ACTH)-adrenocortical axis in turtles.
authors.affiliation: Histophysiology Laboratory, Department of Zoology, University of Calcutta (Ballygunge Campus), Calcutta, India.
authors.forename: Prajna Paramita
authors.initials: PP
authors.lastname: Ray
authors.forename: Supriti
authors.initials: S
authors.lastname: Sarkar
authors.forename: Santasri
authors.initials: S
authors.lastname: Chaudhuri-Sengupta
authors.forename: B R
authors.initials: BR
authors.lastname: Maiti
mesh_terms: D000313:Adrenal Medulla / Q000187:drug effects / Q000503:physiopathology*; D000818:Animals; D001786:Blood Glucose / Q000378:metabolism*; D019439:Chromaffin Cells / Q000166:cytology; D003681:Dehydration / Q000503:physiopathology; D004837:Epinephrine / Q000097:blood; D005260:Female; D005557:Formaldehyde / Q000494:pharmacology; D009638:Norepinephrine; D013312:Stress, Physiological / Q000502:physiology*; D014426:Turtles / Q000502:physiology*
chemical_list: D001786:Blood Glucose; D005557:Formaldehyde; D009638:Norepinephrine; D004837:Epinephrine