In vitro evidence that leptin suppresses melatonin secretion during long days and stimulates its secretion during short days in seasonal breeding ewes.

[1]  A. Foá,et al.  Daily Rhythms of Serum Leptin in Ewes: Effects of Feeding, Pregnancy and Lactation , 2005, Chronobiology international.

[2]  C. Adam,et al.  Appetite regulation and seasonality: implications for obesity , 2004, The Proceedings of the Nutrition Society.

[3]  M. Klingenspor,et al.  Photoperiodic regulation of leptin sensitivity in the Siberian hamster, Phodopus sungorus, is reflected in arcuate nucleus SOCS-3 (suppressor of cytokine signaling) gene expression. , 2004, Endocrinology.

[4]  P. Chelikani,et al.  Short communication: Tissue distribution of leptin and leptin receptor mRNA in the bovine. , 2003, Journal of dairy science.

[5]  M. Amstalden,et al.  Effects of leptin on basal and GHRH-stimulated GH secretion from the bovine adenohypophysis are dependent upon nutritional status. , 2003, The Journal of endocrinology.

[6]  P. Morgan,et al.  Photoperiodic programming of body weight through the neuroendocrine hypothalamus. , 2003, The Journal of endocrinology.

[7]  G. L. Williams,et al.  Divergent Effects of Leptin on Luteinizing Hormone and Insulin Secretion are Dose Dependent , 2003, Experimental biology and medicine.

[8]  H. Lehnert,et al.  Leptin resistance - or why leptin fails to work in obesity. , 2003, Experimental and clinical endocrinology & diabetes : official journal, German Society of Endocrinology [and] German Diabetes Association.

[9]  D. Miller,et al.  Seasonal and dose-dependent effects of intracerebroventricular leptin on lh secretion and appetite in sheep. , 2002, The Journal of endocrinology.

[10]  B. Gündüz.  Daily rhythm in serum melatonin and leptin levels in the Syrian hamster (Mesocricetus auratus). , 2002, Comparative biochemistry and physiology. Part A, Molecular & integrative physiology.

[11]  S. Canpolat,et al.  Effects of pinealectomy and exogenous melatonin on serum leptin levels in male rat. , 2001, European journal of pharmacology.

[12]  J. Goding,et al.  Sex, fat and the tilt of the earth: effects of sex and season on the feeding response to centrally administered leptin in sheep. , 2001, Endocrinology.

[13]  J. Mercer,et al.  The regulation of body weight: lessons from the seasonal animal , 2001, The Proceedings of the Nutrition Society.

[14]  H. Niggemann,et al.  Modulation of leptin sensitivity by short photoperiod acclimation in the Djungarian hamster, Phodopus sungorus , 2000, Journal of Comparative Physiology B.

[15]  J. Flier,et al.  Functional properties of leptin receptor isoforms: internalization and degradation of leptin and ligand-induced receptor downregulation. , 1999, Diabetes.

[16]  J. Flier,et al.  Identification of SOCS-3 as a potential mediator of central leptin resistance. , 1998, Molecular cell.

[17]  D. Keisler,et al.  Leptin receptor mRNA is expressed in ewe anterior pituitary and adipose tissues and is differentially expressed in hypothalamic regions of well-fed and feed-restricted ewes. , 1997, Domestic animal endocrinology.

[18]  G. Heldmaier,et al.  Short photoperiod reduces leptin gene expression in white and brown adipose tissue of Djungarian hamsters , 1996, FEBS letters.

[19]  T. Misztal,et al.  Seasonal changes of melatonin secretion in relation to the reproductive cycle in sheep , 1996 .

[20]  R. Reiter.  Melatonin: That Ubiquitously Acting Pineal Hormone , 1991 .

[21]  N. Wayne,et al.  Regulation of the onset of the breeding season of the ewe: importance of long days and of an endogenous reproductive rhythm. , 1989, The Journal of endocrinology.

[22]  P. Cowen,et al.  Direct radioimmunoassay for melatonin in plasma. , 1983, Clinical chemistry.

[23]  R. Reiter.  The pineal and its hormones in the control of reproduction in mammals. , 1980, Endocrine reviews.

[24]  T. Mizuno,et al.  Role of the mesenchyme in the induction of the rat prostate gland by androgens in organ culture. , 1979, The Journal of endocrinology.

[25]  A. Kalsbeek,et al.  Printed in U.S.A. Copyright © 2001 by The Endocrine Society The Suprachiasmatic Nucleus Generates the Diurnal Changes in Plasma Leptin Levels , 2000 .

[26]  A. Loudon,et al.  Printed in U.S.A. Copyright © 2000 by The Endocrine Society Leptin Acts on Metabolism in a Photoperiod-Dependent Manner, But Has No Effect on Reproductive Function in the Seasonally Breeding Siberian Hamster , 2022 .