Analysis of peptide histidine-isoleucine/ vasoactive intestinal polypeptideimmunoreactive neurons in the central nervous system with special reference to their relation to corticotropin releasing factor-and enkephalin-like immunoreactivities in the paraventricular hypothalamic nucleus

Neuroscience ◽  
1987 ◽  
Vol 23 (3) ◽  
pp. 827-857 ◽  
Author(s):  
T. Hökfelt ◽  
J. Fahrenkrug ◽  
G. Ju ◽  
S. Ceccatelli ◽  
Y. Tsuruo ◽  
...  
Keyword(s):  
Central Nervous System ◽  
Nervous System ◽  
Special Reference ◽  
Corticotropin Releasing Factor ◽  
Hypothalamic Nucleus ◽  
Paraventricular Hypothalamic Nucleus ◽  
The Central Nervous System

Effect of a central CRF antagonist on cardiovascular and thermoregulatory responses induced by stress or IL-1 beta

1993 ◽  
Vol 265 (4) ◽  
pp. R834-R839 ◽  
Author(s):  
T. Nakamori ◽  
A. Morimoto ◽  
N. Murakami
Keyword(s):  
Central Nervous System ◽  
Nervous System ◽  
Interleukin 1 ◽  
Corticotropin Releasing Factor ◽  
Mild Stress ◽  
Induced Responses ◽  
Interleukin 1 Beta ◽  
The Central Nervous System ◽  
Beta 2

We investigated the role of central corticotropin-releasing factor (CRF) in the development of cardiovascular and thermal responses induced by stress or by interleukin-1 beta (IL-1 beta) in free-moving rats. Intracerebroventricular (icv) injection of alpha-helical CRF9-41 (10 micrograms), a CRF receptor antagonist, significantly attenuated hypertension, tachycardia, and a rise in body temperature induced by cage-switch stress, a mild stress. However, icv injection of alpha-helical CRF9-41 (10 micrograms) had no effect on hypertension, tachycardia, or fever induced by intraperitoneal (ip) injection of IL-1 beta (2 micrograms/kg) or icv prostaglandin E2 (PGE2, 100 ng). In contrast, icv injection of alpha-helical CRF9-41 (10 micrograms) significantly attenuated hypertension, tachycardia, or fever induced by icv injection of IL-1 beta (20 ng). The present results suggest that central CRF has an important role in the development of the cage-switch stress-induced responses, but it does not seem to contribute to the hypertension, tachycardia, and fever induced by ip IL-1 beta or by central PGE2. However, it is possible that when IL-1 beta directly acts on the central nervous system, some of its actions are mediated by central CRF.

scholarly journals Disrupted Leptin Signaling in the Lateral Hypothalamus and Ventral Premammillary Nucleus Alters Insulin and Glucagon Secretion and Protects Against Diet-Induced Obesity

Endocrinology ◽  
2016 ◽  
Vol 157 (7) ◽  
pp. 2671-2685 ◽  
Author(s):  
Heather C. Denroche ◽  
Maria M. Glavas ◽  
Eva Tudurí ◽  
Subashini Karunakaran ◽  
Whitney L. Quong ◽  
...  
Keyword(s):  
Central Nervous System ◽  
Nervous System ◽  
Weight Gain ◽  
Blood Glucose ◽  
Glucagon Secretion ◽  
Hypothalamic Nucleus ◽  
Leptin Signaling ◽  
Glucose Levels ◽  
The Central Nervous System

Leptin signaling in the central nervous system, and particularly the arcuate hypothalamic nucleus, is important for regulating energy and glucose homeostasis. However, the roles of extra-arcuate leptin responsive neurons are less defined. In the current study, we generated mice with widespread inactivation of the long leptin receptor isoform in the central nervous system via Synapsin promoter-driven Cre (Leprflox/flox Syn-cre mice). Within the hypothalamus, leptin signaling was disrupted in the lateral hypothalamic area (LHA) and ventral premammillary nucleus (PMV) but remained intact in the arcuate hypothalamic nucleus and ventromedial hypothalamic nucleus, dorsomedial hypothalamic nucleus, and nucleus of the tractus solitarius. To investigate the role of LHA/PMV neuronal leptin signaling, we examined glucose and energy homeostasis in Leprflox/flox Syn-cre mice and Leprflox/flox littermates under basal and diet-induced obese conditions and tested the role of LHA/PMV neurons in leptin-mediated glucose lowering in streptozotocin-induced diabetes. Leprflox/flox Syn-cre mice did not have altered body weight or blood glucose levels but were hyperinsulinemic and had enhanced glucagon secretion in response to experimental hypoglycemia. Surprisingly, when placed on a high-fat diet, Leprflox/flox Syn-cre mice were protected from weight gain, glucose intolerance, and diet-induced hyperinsulinemia. Peripheral leptin administration lowered blood glucose in streptozotocin-induced diabetic Leprflox/flox Syn-cre mice as effectively as in Leprflox/flox littermate controls. Collectively these findings suggest that leptin signaling in LHA/PMV neurons is not critical for regulating glucose levels but has an indispensable role in the regulation of insulin and glucagon levels and, may promote the development of diet-induced hyperinsulinemia and weight gain.

Actinomycotic granuloma of the Gasserian ganglion with primary site in a dental root

1981 ◽  
Vol 54 (4) ◽  
pp. 553-555 ◽  
Author(s):  
Enrico Perna ◽  
R. Liguori ◽  
G. Petrone ◽  
E. Mannarino
Keyword(s):  
Central Nervous System ◽  
Nervous System ◽  
Special Reference ◽  
Unusual Case ◽  
Primary Site ◽  
Pathological Diagnosis ◽  
Gasserian Ganglion ◽  
Content Type ◽  
The Central Nervous System ◽  
Fine Print

✓ An unusual case of cerebral actinomycosis of the Gasserian ganglion is reported. The location and the pathological diagnosis of granuloma are both extremely rare. The literature is briefly reviewed with special reference to similar reports. The manner of spread and the course of the disease are described. The present case tends to confirm the opinion that primary cerebral actinomycosis is extremely rare and probably does not exist. The case also definitely indicates that the organism reaches the central nervous system by way of nerve or perineural pathways.

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