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Miguel del Campo, Néstor Lagos and Hernán Lara

the intraovarian distribution of sympathetic fibers, which is similar in all mammalian species, although the density of the network varies considerably among them ( Jacobowitz & Wallach 1967 ). Norepinephrine is the main neurotransmitter that is

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Xin Li, Hongjiao Li, Di Zhang, Guojin Xu, Jinglin Zhang and Sheng Cui

. 2012 , Kageyama 2013 , Oyola & Handa 2017 , Heck & Handa 2019 , Mohammadi et al. 2019 ), including the abnormalities of the synthesis and secretion of FSH and LH, in which the norepinephrine (NE) is involved ( Lobo et al. 1983 , Moberg 1991

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Xiaochuan Chen, Amy C Kelly, Dustin T Yates, Antoni R Macko, Ronald M Lynch and Sean W Limesand

& Friedman 2014 ). Elevated epinephrine and norepinephrine (NE) concentrations in the fetus are primary determinants for adaptive changes in metabolism and reduced growth rates ( Apatu & Barnes 1991 , Milley 1997 , Bassett & Hanson 1998 , Davis et al

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Araceli Morales, Miriam Gonzalez, Raquel Marin, Mario Diaz and Rafael Alonso

), and to modulate the response of GnRH-producing cells to classical neurotransmitters ( Morales et al. 2003 , 2005 ). We previously found that treatment of GT1-7 cells with E 2 for 48 h inhibited the accumulation of cAMP induced by nor-epinephrine

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B Anguiano, R Rojas-Huidobro, G Delgado and C Aceves

), norepinephrine (NE) from Sigma Chemical Co. (St Louis, MO, USA) and BRO from Sandoz (Sandoz de Mexico, Mexico DF). Oligonucleotides were synthesized by GIBCO-BRL (Gaithersburg, MD, USA). All other reagents were of the highest purity commercially available

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C. Wrutniak and G. Cabello

ABSTRACT

The effects of hypothyroidism on the lipolytic activity of norepinephrine were assessed in the newborn lamb. Lambs were separated into three groups: group A were controls; groups B and C were made hypothyroid by administration of benzylthiouracil from birth until 11 days of age.

In control lambs, plasma free fatty acid concentrations, used as an index of lipolytic activity, increased significantly (plus 0·45 mmol/l) during the infusion of norepinephrine, whereas they did not change in hypothyroid lambs (group B). Adding thyroxine and tri-iodothyronine to the infusion medium (group C) immediately restored the free fatty acid response to norepinephrine in hypothyroid lambs (plus 0·41 mmol/l).

These results suggest that thyroid hormones could modulate the lipolytic activity of catecholamines in the newborn lamb without a latent period.

J. Endocr. (1986) 108, 451–454

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Jinpin Wang, Catherine M Wernette, Robert L Judd, Kevin W Huggins and B Douglas White

(i.c.v.) injections of either leptin or vehicle. Blood glucose concentrations were measured daily and the norepinephrine content of various tissues was determined at the end of the study. The results suggest that impairment of the sympathetic nervous

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Daniela Álvarez, Karina Ceballo, Sofía Olguín, Jonathan Martinez-Pinto, Manuel Maliqueo, Daniela Fernandois, Ramón Sotomayor-Zárate and Gonzalo Cruz

obese rats leads to long-term reproductive dysfunction. Female rats exposed to high serum estradiol levels during early life show increased levels of norepinephrine (NE) in the ovaries, indicating an increased sympathetic tone related to the formation

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Christopher J Charles, David L Jardine, Miriam T Rademaker and A Mark Richards

plasma norepinephrine report either no effect ( Rademaker et al . 2005 , Davis et al . 2007 a ) or activation ( Davis et al . 2007 b ) of norepinephrine, taken as an index of global activity of the SNS. To our knowledge, there have been no studies

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Sushil K Mahata, Hong Zheng, Sumana Mahata, Xuefei Liu and Kaushik P Patel

overactivation and progression of HF is less well known. Circulating catecholamines, comprising dopamine (DA), norepinephrine (NE) and epinephrine (EPI), are primarily synthesized and released from the chromaffin cells of the adrenal medulla ( Goldstein et al