نتایج جستجو برای: nk1r

تعداد نتایج: 208  

Journal: :Neuropharmacology 2014
S. Clare Stanford

Both psychostimulants and antidepressants target monoamine transporters and, as a consequence, augment monoamine transmission. These two groups of drugs also increase motor activity in preclinical behavioural screens for antidepressants. Substance P-preferring receptor (NK1R) antagonists similarly increase both motor activity in these tests and monoamine transmission in the brain. In this artic...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2001
L Santarelli G Gobbi P C Debs E T Sibille P Blier R Hen M J Heath

Alterations in serotonin (5-hydroxytriptamine, 5-HT), norepinephrine, and gamma-aminobutyric acid have been linked to the pathophysiology of anxiety and depression, and medications that modulate these neurotransmitters are widely used to treat mood disorders. Recently, the neuropeptide substance P (SP) and its receptor, the neurokinin 1 receptor (NK1R), have been proposed as possible targets fo...

Journal: :Gastroenterology 2021

Background & AimsTreatments are needed for gastroparesis; antagonists of tachykinin receptor 1 (TACR1, also called NK1R) can reduce symptoms nausea and vomiting. We investigated the safety efficacy tradipitant, an antagonist NK1R, in patients with idiopathic or diabetic gastroparesis.MethodsWe performed a double-blind trial 152 adults gastroparesis at 47 sites United States from November 2016 t...

Journal: :American journal of physiology. Cell physiology 2011
Enrique Rozengurt

G PROTEIN-COUPLED RECEPTORS (GPCRs, also designated as heptahelical receptors or 7TMRs) are integral membrane proteins characterized by seven transmembrane -helices. GPCRs, with 800 genes, represent the largest transmembrane receptor superfamily in the human genome (11). Many intercellular messengers, including hormones, neurotransmitters, chemokines, growth and developmental factors, bioactive...

Neurokinin 1 receptors (NK1R) are overexpressed on several types of important human cancer cells. Substance P (SP) is the most specific endogenous ligand known for NK1Rs. Accordingly, a new SP analogue was synthesized and evaluated for detection of NK1R positive tumors. [6-hydrazinopyridine-3-carboxylic acid (HYNIC)-Tyr8-Met(O)11-SP] was synthesized and radiolabeled with 99mTc using ethylenedia...

2015
Saeed Mozaffari Mostafa Erfani Davood Beiki Fariba Johari Daha Farzad Kobarfard Saeed Balalaie Babak Fallahi

Neurokinin 1 receptors (NK1R) are overexpressed on several types of important human cancer cells. Substance P (SP) is the most specific endogenous ligand known for NK1Rs. Accordingly,a new SP analogue was synthesized and evaluated for detection of NK1R positive tumors.[6-hydrazinopyridine-3-carboxylic acid (HYNIC)-Tyr(8)-Met(O)(11)-SP] was synthesized and radiolabeled with (99m)Tc using ethylen...

Journal: :The Journal of neuroscience : the official journal of the Society for Neuroscience 2003
Silvia Pagliardini Jun Ren John J Greer

The aim of this study was to provide a systematic examination of the ontogenesis of the mammalian respiratory rhythm generating center, the pre-Bötzinger complex (pre-BötC). A combination of immunohistochemical markers and electrophysiological recordings was used to determine the time of inception of the pre-BötC and the developmental changes during the perinatal period in rats spanning from em...

Journal: :American journal of physiology. Gastrointestinal and liver physiology 2013
Pierre Miegueu David H St-Pierre Marc Lapointe Pegah Poursharifi HuiLing Lu Abhishek Gupta Katherine Cianflone

Obesity, inflammation, and insulin resistance are closely linked. Substance P (SP), via its neurokinin 1 receptor (NK1R), mediates inflammatory and, possibly, neuroendocrine processes. We examined SP effects on lipid storage and cytokine production in 3T3-L1 adipocytes and adipose tissues. 3T3-L1 adipocytes and preadipocytes express NK1R, and 8 days of SP supplementation during differentiation ...

Journal: :The Journal of neuroscience : the official journal of the Society for Neuroscience 2008
Erika Polgár Khulood M Al-Khater Safa Shehab Masahiko Watanabe Andrew J Todd

Although most projection neurons in lamina I express the neurokinin 1 receptor (NK1r), we have identified a population of large multipolar projection cells that lack the NK1r, are characterized by the high density of gephyrin puncta that coat their cell bodies and dendrites, and express the transcription factor Fos in response to noxious chemical stimulation. Here we show that these cells have ...

Journal: :The Journal of physiology 2006
Angelina Y Fong Jeffrey T Potts

In the present study, we examined the role of the neurokinin-1 receptor (NK1R) in the modulation of respiratory rhythm in a functionally identified bradypnoeic region of the ventral respiratory group (VRG) in the in situ arterially perfused juvenile rat preparation. In electrophysiologically and functionally identified bradypnoeic sites corresponding to the Bötzinger complex (BötC), microinject...

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