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形狀
lyophilized powder
品質等級
顏色
white
溶解度
1% acetic acid: 1 mg/mL
water: 1 mg/mL
UniProt登錄號
儲存溫度
−20°C
基因資訊
rat ... Ghrl(59301)
Amino Acid Sequence
Gly-Ser-Ser(O-n-octanoyl)-Phe-Leu-Ser-Pro-Glu-His-Gln-Lys-Ala-Gln-Gln-Arg-Lys-Glu-Ser-Lys-Lys-Pro-Pro-Ala-Lys-Leu-Gln-Pro-Arg
一般說明
Ghrelin is a gut-brain orexigenic peptide that functions in hunger signaling. This peptide is prominently synthesized by stomach and transported to brain. However, a specific subset of hypothalamic neurons also produces this peptide. It is expressed in gastrointestinal tract, hypothalamic arcuate nucleus, pituitary, kidney, liver, heart, lung and adipose tissue This peptide is composed of 28 amino acids, and its Ser3 residue is N-octanoylated.
應用
Ghrelin rat has been used for intraperitoneal injections, and microinjections in rats to study its effects on celiac disease, and passive avoidance learning (PAV) and spatial learning, respectively. It has also been used for intracerebroventricular injection in rats to study its influence on penicillin-induced epileptiform activity in rat.
生化／生理作用
Ghrelin acts as a ligand for G-protein coupled receptor, GHS-R1A (growth hormone secretagogue receptor), and controls energy utilization and feeding. This peptide is involved in enhancing the value of rewarding foods, drugs and alcohol. In rats with diabetes, the expression of ghrelin increased as a result of cachexia. In rats with ovariectomy, the expression of this peptide decreased in the endometrium. This peptide controls cognitive functions and has neuroprotective roles in neurodegenerative disorders. In cultured cortical neuronal networks, ghrelin increases the rate of synapse formation and activity development.
Endogenous ligand to the orphan growth-hormone secretagogue receptor that stimulates the release of growth hormone from the pituitary.
外觀
Lyophilized from 0.1% aqueous TFA
其他說明
Lyophilized from 0.1% TFA in H2O
儲存類別代碼
11 - Combustible Solids
水污染物質分類（WGK）
WGK 3
Krisztián Tóth et al.
Behavioural brain research, 202(2), 308-311 (2009-05-26)
The brain-gut peptide acylated-ghrelin (A-Ghr) is a potent growth hormone (GH) secretagogue substance. A-Ghr is also known to influence on memory and learning processes. Its effect is mediated partly via GH secretagogue receptor (GHS-R) type 1a. The amygdaloid body (AMY)
Funda Unsal et al.
Advances in clinical and experimental medicine : official organ Wroclaw Medical University, 23(3), 363-370 (2014-07-01)
Ghrelin is a hormone which has effects on the secretion of growth hormone, the gastrointestinal system, the cardiovascular system, cell proliferation and the reproductive system. The aim of this study is to investigate structural changes in the uterine tissue and
Ali Aslan et al.
Neuropeptides, 43(4), 295-302 (2009-06-26)
Ghrelin, a gastric peptide with key action on food intake, has been recently recognized as a potential antiepileptic agent. In the present study, we investigated the involvement of nitric oxide in the effect of ghrelin on penicillin-induced epileptiform activity in
Miklós Sárvári et al.
PloS one, 9(5), e97651-e97651 (2014-05-17)
The orexigenic gut-brain peptide, ghrelin and its G-protein coupled receptor, the growth hormone secretagogue receptor 1a (GHS-R1A) are pivotal regulators of hypothalamic feeding centers and reward processing neuronal circuits of the brain. These systems operate in a cooperative manner and
Irina I Stoyanova et al.
BMC neuroscience, 15, 49-49 (2014-04-20)
While ghrelin was initially related to appetite stimulation and growth hormone secretion, it also has a neuroprotective effect in neurodegenerative diseases and regulates cognitive function. The cellular basis of those processes is related to synaptic efficacy and plasticity. Previous studies
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