Abstract

To examine the effects of leptin on LHRH release in vivo. RESULTS Because of increasing interest in leptin, we examined the effects of leptin on LHRH release in the ovariectomized adult rhesus monkeys in vivo. Leptin at 10 pM, 1 nM, and 100 nM was infused for 20 min into the S-ME through a push cannula, while perfusates were collected through a pull cannula. Leptin stimulated LHRH release in a dose-responsive manner. Leptin at 10 pM increased LHRH release (50%) peaking at 20 min after the initiation of the infusion, and leptin at 1 nM and 100 nM increased LHRH release (100% and 180%, respectively), both peaking after the first 10 min of the infusion. Data from this study indicate that leptin may play an important role in linking a metabolic signal with reproductive function. FUTURE DIRECTIONS We plan to examine the causal relationship between leptin effects and NPY release. KEY WORDS leptin, pulsatile LHRH release, monkey hypothalamus.

  Funding Agency

Agency
National Institute of Health (NIH)
Institute
National Center for Research Resources (NCRR)
Type
Primate Research Center Grants (P51)
Project #
5P51RR000167-38
Application #
6277687
Study Section
Project Start
1998-05-01
Project End
1999-04-30
Budget Start
1997-10-01
Budget End
1998-09-30
Support Year
38
Fiscal Year
1998
Total Cost
Indirect Cost

  Institution

Name
University of Wisconsin Madison
Department
Type
DUNS #
161202122
City
Madison
State
WI
Country
United States
Zip Code
53715

  Publications

Kang, HyunJun; Mesquitta, Walatta-Tseyon; Jung, Ho Sun et al. (2018) GATA2 Is Dispensable for Specification of Hemogenic Endothelium but Promotes Endothelial-to-Hematopoietic Transition. Stem Cell Reports 11:197-211
Rhoads, Timothy W; Burhans, Maggie S; Chen, Vincent B et al. (2018) Caloric Restriction Engages Hepatic RNA Processing Mechanisms in Rhesus Monkeys. Cell Metab 27:677-688.e5
Ellis-Connell, Amy L; Balgeman, Alexis J; Zarbock, Katie R et al. (2018) ALT-803 Transiently Reduces Simian Immunodeficiency Virus Replication in the Absence of Antiretroviral Treatment. J Virol 92:
Park, Mi Ae; Jung, Ho Sun; Slukvin, Igor (2018) Genetic Engineering of Human Pluripotent Stem Cells Using PiggyBac Transposon System. Curr Protoc Stem Cell Biol 47:e63
Ellis, Amy; Balgeman, Alexis; Rodgers, Mark et al. (2017) Characterization of T Cells Specific for CFP-10 and ESAT-6 in Mycobacterium tuberculosis-Infected Mauritian Cynomolgus Macaques. Infect Immun 85:
Rodrigues, Michelle A (2017) Female Spider Monkeys (Ateles geoffroyi) Cope with Anthropogenic Disturbance Through Fission-Fusion Dynamics. Int J Primatol 38:838-855
Buechler, Connor R; Bailey, Adam L; Lauck, Michael et al. (2017) Genome Sequence of a Novel Kunsagivirus (Picornaviridae: Kunsagivirus) from a Wild Baboon (Papio cynocephalus). Genome Announc 5:
Wu, Hong; Whritenour, Jessica; Sanford, Jonathan C et al. (2017) Identification of MHC Haplotypes Associated with Drug-induced Hypersensitivity Reactions in Cynomolgus Monkeys. Toxicol Pathol 45:127-133
Shackman, A J; Fox, A S; Oler, J A et al. (2017) Heightened extended amygdala metabolism following threat characterizes the early phenotypic risk to develop anxiety-related psychopathology. Mol Psychiatry 22:724-732
Kalin, Ned H (2017) Mechanisms underlying the early risk to develop anxiety and depression: A translational approach. Eur Neuropsychopharmacol 27:543-553

Showing the most recent 10 out of 528 publications