Previous studies have shown that the expression of the neuropeptide galanin in the hippocampus is altered by seizures and that exogenous administration of galanin into the hippocampus attenuates seizure severity. To address the role of endogenous galanin in modulation of hippocampal excitability and its possible role in seizure mechanisms, we studied two types of transgenic mice: mice with a ta...

The neuropeptides galanin and neuropeptide Y (NPY) play an important role in the reproduction of rodents, e.g. by modulating the release of gonadal hormones, the nutritional status by effects on feeding behavior and also by infl uencing mating behavior. There are ageand genderdifferences in galaninand NPY like immunoreactivities (LIs) in brain areas important for higher functions, including the...

Leptin acts centrally via leptin receptor (LepRb)-expressing neurons to regulate food intake, energy expenditure, and other physiological functions. LepRb neurons are found throughout the brain, and several distinct populations contribute to energy homeostasis control. However, the function of most LepRb populations remains unknown, and their contribution to regulate energy homeostasis has not ...

Galanin is present in neurons in the brain that are important in the control of arterial pressure, and intracisternal administration of galanin evokes hypotension, but the site of action is unknown. In urethane-anesthetized, vagotomized mechanically ventilated Sprague-Dawley rats (n = 34), we investigated the effects of microinjecting galanin (1 mM, 50 nl, 50 pmol) into the rostral ventrolatera...

Galanin is present in neurons in the brain that are important in the control of arterial pressure and intracisternal administration of galanin evokes hypotension, but the site of action is unknown. In urethane-anaesthetised, vagotomised mechanically ventilated Sprague Dawley rats (N=34), we investigated the effects of microinjecting galanin (1mM, 50nL, 50pmol) into the rostral ventrolateral med...

OBJECTIVE This study investigated the association between plasma galanin level and depression severity. METHODS The severity of depression symptoms of 79 patients with major depressive disorder (MDD; 52 women and 27 men, 71 patients in onset, 8 in remission) was assessed using the 17-item Hamilton Depression Rating Scale. Venous fasting blood samples (5 mL) were taken from the 79 MDD patients...

Galanin, a newly discovered peptide, was found throughout the gastrointestinal tract of man, pig, and rat, exclusively in nerves. The concentrations of immunoreactive galanin ranged from 3.7 +/- 0.7 (mean +/- SEM) pmol/g in rat antrum to 76.5 +/- 14.3 pmol/g in pig colon. The predominantly intrinsic origin of the galanin nerves was shown by the finding of the peptide in submucosal ganglion cell...

The neuropeptide galanin is widely expressed in the nervous system and has an important role in nociception. It has been shown that galanin can facilitate and inhibit nociception in a dose-dependent manner, principally through the central nervous system, with enhanced antinociceptive actions after nerve injury. However, following nerve injury, expression of galanin within the peripheral nervous...

The present study examines the role of cerebroventricular administered (IIIrd ventricle) galanin on LHRH and LH release in adult and immature male rats. In both age groups, galanin stimulated LHRH synthesis and release from the hypothalamus, leading to a higher release of pituitary LH which in turn increased plasma LH levels. Galantide, a galanin receptor blocker, on the other hand, drastically...

INTRODUCTION Galanin is a neuropeptide with wide-ranging effects, especially within the endocrine and nervous systems. Galanin and its receptors are present in human skin. Galanin is expressed in different neural, endocrine and neuroendocrine tumors and, on the other hand, several neuropeptides, particularly alpha-MSH, seem to play a role in the pathogenesis of melanoma. OBJECTIVE To investig...