NDLI: Effect of thyroid hormone depletion on monoamines and expression patterns of catfish GnRH in the air-breathing catfish, Clarias gariepinus

Content Provider	Springer Nature Link
Author	Kumar, K. V. Sathya Sai Swapna, I. Gupta, Aparna Dutta Majumdar, K. C. Senthilkumaran, B.
Copyright Year	2006
Abstract	Thyroid hormone is known to have profound effect on the efficient functioning of the reproductive system. The GnRH-gondaotropin (GTH) axis is the crucial axis involved in regulation of the various aspects of reproduction like spermatogenesis, synthesis of sex steroids and regulation of courting and spawning behavior. Earlier study from our laboratory has shown that thyroid hormone depletion causes a decrease in GTH and GnRH levels in pituitary and preoptic area, respectively. GnRH secretion in pre-optic area is largely regulated by the monoaminergic system mainly dopamine (DA), epinephrine (E), norepinephrine (NE) and serotonin (5-HT). The expression pattern of catfish GnRH transcripts tends to corroborate our earlier findings. Hence, in the current study we aimed to investigate the levels of monoamines in the preoptic area-hypothalamus (POA-H), so as to determine whether thyroid hormone depletion modulates the monoaminergic neurotransmission thereby affecting GnRH secretion. The levels of NE and L-dopa decreased significantly while that of DA was unaltered following thyroid hormone depletion. DA has an inhibitory effect on GnRH secretion. Findings from the present study suggest that the inhibitory tone is unaltered while the stimulatory tone influencing GnRH neurons in POA-H is decreased during thiourea induced thyroid hormone depletion.
Starting Page	189
Ending Page	192
Page Count	4
File Format	PDF
ISSN	09201742
Journal	Fish Physiology and Biochemistry
Volume Number	31
Issue Number	2-3
e-ISSN	15735168
Language	English
Publisher	Springer Netherlands
Publisher Date	2006-08-29
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	cfGnRH Monoamines Preoptic area-Hypothalamus Thiourea Freshwater & Marine Ecology Animal Physiology Animal Anatomy / Morphology / Histology Animal Biochemistry Zoology
Content Type	Text
Resource Type	Article
Subject	Physiology Medicine Biochemistry Aquatic Science

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Thyroid hormone modulation of ovarian recrudescence of air-breathing catfish Clarias gariepinus

Thiourea-induced alteration in the expression patterns of some steroidogenic enzymes in the air-breathing catfish Clarias gariepinus

Effect of thyroid hormone depletion on monoamines and expression patterns of catfish GnRH in the air-breathing catfish, Clarias gariepinus.

Purification of vitellogenin from the air breathing catfish, Clarias gariepinus

Thyroxine-induced alterations in the testis and seminal vesicles of air-breathing catfish, Clarias gariepinus

Stress in African catfish (Clarias gariepinus) following overland transportation

In vitro induction of vitellogenin by estradiol 17 β in isolated hepatocytes of catfish, Clarias gariepinus

Bioaccumulation of cadmium and its biochemical effect on selected tissues of the catfish (Clarias gariepinus)

Physicochemical and kinetic characteristics of rhodanese from the liver of African catfish Clarias gariepinus Burchell in Asejire lake

Effect of thyroid hormone depletion on monoamines and expression patterns of catfish GnRH in the air-breathing catfish, Clarias gariepinus

Similar Documents

Thyroid hormone modulation of ovarian recrudescence of air-breathing catfish Clarias gariepinus

Thiourea-induced alteration in the expression patterns of some steroidogenic enzymes in the air-breathing catfish Clarias gariepinus

Effect of thyroid hormone depletion on monoamines and expression patterns of catfish GnRH in the air-breathing catfish, Clarias gariepinus.

Purification of vitellogenin from the air breathing catfish, Clarias gariepinus

Thyroxine-induced alterations in the testis and seminal vesicles of air-breathing catfish, Clarias gariepinus

Stress in African catfish (Clarias gariepinus) following overland transportation

In vitro induction of vitellogenin by estradiol 17 β in isolated hepatocytes of catfish, Clarias gariepinus

Bioaccumulation of cadmium and its biochemical effect on selected tissues of the catfish (Clarias gariepinus)

Physicochemical and kinetic characteristics of rhodanese from the liver of African catfish Clarias gariepinus Burchell in Asejire lake

Effect of thyroid hormone depletion on monoamines and expression patterns of catfish GnRH in the air-breathing catfish, Clarias gariepinus