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https://www.readbyqxmd.com/read/28432554/epigallocatechin-gallate-protects-beas-2b-cells-from-lipopolysaccharide-induced-apoptosis-through-upregulation-of-gastrin-releasing-peptide
#1
Peethambaran Divya, Bijesh Puthusseri, Denny Joseph Kollareth Manual, Mohammed Azharuddin Savanur
Gastrin-releasing peptide (GRP) plays a major role in the development and maintenance of lung epithelial cells by promoting cell division, whereas its suppression causes growth arrest and apoptosis. The present study shows that human bronchial epithelial BEAS-2B cells challenged with lipopolysaccharide (LPS), an endotoxin from gram-negative bacteria, downregulated GRP expression and induced apoptosis via upregulation of p53 and active caspase-3, signifying the importance of GRP in lung epithelial cell survival...
April 21, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28432443/progastrin-a-potential-predictive-marker-of-liver-metastasis-in-colorectal-cancer
#2
David A Westwood, Oneel Patel, Christopher Christophi, Arthur Shulkes, Graham S Baldwin
BACKGROUND AND AIMS: Staging of colorectal cancer often fails to discriminate outcomes of patients with morphologically similar tumours that exhibit different clinical behaviours. Data from several studies suggest that the gastrin family of growth factors potentiates colorectal cancer tumourigenesis. The aim of this study was to investigate whether progastrin expression may predict clinical outcome in colorectal cancer. METHODS: Patients with colorectal adenocarcinoma of identical depth of invasion who had not received neoadjuvant therapy were included...
April 21, 2017: International Journal of Colorectal Disease
https://www.readbyqxmd.com/read/28430608/adrenalectomy-abolishes-hypergravity-induced-gastric-acid-hyposecretion
#3
Kiyong Na, Hyun-Soo Kim
Jet fighter pilots experience high gravitational acceleration forces in the cephalocaudal direction (+Gz), causing severe stress. Stress affects different physiological functions of the gastrointestinal tract. Although the effects of exposure to hypergravity on cardiovascular and cerebral functions have been the subject of numerous studies, crucial information regarding potential pathophysiological alterations following hypergravity exposure in the gastrointestinal tract is lacking. We recently documented a significant decrease in gastric secretory activity in rats after acute exposure to hypergravity...
February 16, 2017: Oncotarget
https://www.readbyqxmd.com/read/28425145/prevalence-of-gastroesophageal-reflux-in-cats-during-anesthesia-and-effect-of-omeprazole-on-gastric-ph
#4
R S Garcia, P C Belafsky, A Della Maggiore, J M Osborn, B H Pypendop, T Pierce, V J Walker, A Fulton, S L Marks
BACKGROUND: Gastroesophageal reflux (GER) is poorly characterized in anesthetized cats, but can cause aspiration pneumonia, esophagitis, and esophageal stricture formation. OBJECTIVE: To determine whether pre-anesthetic orally administered omeprazole increases gastric and esophageal pH and increases serum gastrin concentrations in anesthetized cats, and to determine the prevalence of GER using combined multichannel impedance and pH monitoring. ANIMALS: Twenty-seven healthy cats undergoing elective dental procedures...
April 19, 2017: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/28420122/the-effect-of-salt-intake-and-potassium-supplementation-on-serum-gastrin-levels-in-chinese-adults-a-randomized-trial
#5
Yuan-Yuan Wang, Wen-Wen He, Yan-Chun Liu, Yi-Feng Lin, Lu-Fei Hong
Excess dietary salt is strongly correlated with cardiovascular disease, morbidity, and mortality. Conversely, potassium likely elicits favorable effects against cardiovascular disorders. Gastrin, which is produced by the G-cells of the stomach and duodenum, can increase renal sodium excretion and regulate blood pressure by acting on the cholecystokinin B receptor. The aim of our study was to assess the effects of altered salt and potassium supplementation on serum gastrin levels in humans. A total of 44 subjects (38-65 years old) were selected from a rural community in northern China...
April 14, 2017: Nutrients
https://www.readbyqxmd.com/read/28417160/diagnosis-of-recurrent-prostate-cancer-with-pet-ct-imaging-using-the-gastrin-releasing-peptide-receptor-antagonist-68-ga-rm2-preliminary-results-in-patients-with-negative-or-inconclusive-18-f-fluoroethylcholine-pet-ct
#6
Gesche Wieser, Ilinca Popp, H Christian Rischke, Vanessa Drendel, Anca-Ligia Grosu, Mark Bartholomä, Wolfgang A Weber, Rosalba Mansi, Ulrich Wetterauer, Wolfgang Schultze-Seemann, Philipp T Meyer, Cordula Annette Jilg
PURPOSE/BACKGROUND: [(18)F]fluoroethylcholine ((18)FECH) has been shown to be a valuable PET-tracer in recurrent prostate cancer (PCa), but still has limited accuracy. RM2 is a gastrin-releasing peptide receptor (GRPr) antagonist that binds to GRPr on PCa cells. Recent studies suggest that GRPr imaging with PET/CT is a promising technique for staging and restaging of PCa. We explore the value of GRPr-PET using the (68)Ga-labeled GRPr antagonist RM2 in a selected population of patients with biochemically recurrent PCa and a negative/inconclusive (18)FECH-PET/CT...
April 18, 2017: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/28413860/distribution-and-characterisation-of-cck-containing-enteroendocrine-cells-of-the-mouse-small-and-large-intestine
#7
Josiane Fakhry, Joyce Wang, Patricia Martins, Linda J Fothergill, Billie Hunne, Pierre Prieur, Arthur Shulkes, Jens F Rehfeld, Brid Callaghan, John B Furness
There is general consensus that enteroendocrine cells, EEC, containing the enteric hormone cholecystokinin (CCK) are confined to the small intestine and predominate in the duodenum and jejunum. Contrary to this, EEC that express the gene for CCK have been isolated from the large intestine of the mouse and there is evidence for EEC that contain CCK-like immunoreactivity in the mouse colon. However, the human and rat colons do not contain CCK cells. In the current study, we use immunohistochemistry to investigate CCK peptide presence in endocrine cells, PCR to identify cck transcripts and chromatography to identify CCK peptide forms in the mouse small and large intestine...
April 17, 2017: Cell and Tissue Research
https://www.readbyqxmd.com/read/28408643/gastrin-induces-parathyroid-hormone-like-hormone-expression-in-gastric-parietal-cells
#8
Asma Al Menhali, Theresa M Keeley, Elise S Demitrack, Linda C Samuelson
Parietal cells play a fundamental role in stomach maintenance, not only by creating a pathogen-free environment through the production of gastric acid, but also by secreting growth factors important for homeostasis of the gastric epithelium. The gastrointestinal hormone gastrin is known to be a central regulator of both parietal cell function and gastric epithelial cell proliferation and differentiation. Our previous gene expression profiling studies of mouse stomach identified parathyroid hormone-like hormone (PTHLH) as a potential gastrin-regulated gastric growth factor...
April 13, 2017: American Journal of Physiology. Gastrointestinal and Liver Physiology
https://www.readbyqxmd.com/read/28398409/-macrocytosis-of-red-blood-cells-and-early-arthritis-positive-for-rheumatoid-factor-such-as-initial-manifestations-of-a-neuroendocrine-gastrin-secreting-gastric-tumor
#9
Ciro Manzo, Maria Natale, Gennaro Mossetti, Aniello Piscopo
Neuroendocrine tumors (NETs) represent uncommon tumors arising from the excessive proliferation of enterochromaffin-like (ECL) cells (so-called Kulchitsky cell). Gastric NETs (GNET) represent less than 2% of all NETs and less than 1% of all stomach neoplasms. In particular, gastric NETs type 1 (associated to chronic atrophic gastritis and hypergastrinaemia) is the more frequent one, accounting for 70-80% of all GNET. A macrocytic anemia is a frequent manifestation of GNET type 1. The possibility that macrocytic anemia appear during therapy with methotrexate (MTX) is widely documented...
March 2017: Recenti Progressi in Medicina
https://www.readbyqxmd.com/read/28397104/omeprazole-absorption-and-fasting-gastrinemia-after-roux-en-y-gastric-bypass
#10
Renata V A Collares-Pelizaro, José S Santos, Carla B Nonino, Cristiane M Gaitani, Wilson Salgado
PURPOSE: Roux-en-Y gastric bypass (RYGB) is one of the bariatric surgeries most frequently performed worldwide. Since this operation may predispose to the formation of peptic ulcer of the gastrojejunal anastomosis, the use of proton pump inhibitors (PPI) is recommended during the first postoperative year. However, so far, there is no detailed knowledge about the absorption of this medication during the immediate postoperative period and consequently about its effectiveness in blocking acid secretion...
April 10, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/28395823/gastric-toxicity-involving-alterations-of-gastritis-related-protein-expression-in-mice-following-long-term-exposure-to-nano-tio2
#11
Fashui Hong, Nan Wu, Yingjun Zhou, Li Ji, Ting Chen, Ling Wang
Nano TiO2 has been widely used in food industry as a coloring agent, whether the application has adverse effects on stomach for humans and animals is rarely concerned. This study determined whether intragastric administration with nano TiO2 every day for nine months cause gastric damages and dysfunction, and is associated with changes of stomach damage-related protein expression in mice. Our results suggested that nano TiO2 exposure resulted in significant titanium accumulation in the stomach, reductions in daily food intake and water intake, stomach weight, and stomach indices...
May 2017: Food Research International
https://www.readbyqxmd.com/read/28382954/early-traditional-chinese-medicine-bundle-therapy-for-the-prevention-of-sepsis-acute-gastrointestinal-injury-in-elderly-patients-with-severe-sepsis
#12
Yifei Wang, Yunhua Zhang, Ronglin Jiang
This study aimed to study the effect of early traditional Chinese medicine bundle therapy on the prevention of sepsis-associated acute gastrointestinal injury (AGI). This was a multicenter, prospective, observational, non-randomized cohort study of 296 consecutive patients with severe sepsis during 2013/3 and 2014/11; 150 patients received standard treatments (controls) and 146 received traditional Chinese medicine bundle therapy (intervention group) (herbal decoction gavage based on syndrome differentiation, Chinese acupuncture, application of mirabilite, and defecation mixture)...
April 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28375946/antisecretory-effects-of-chimeric-somatostatin-dopamine-receptor-ligands-on-gastroenteropancreatic-neuroendocrine-tumors
#13
Anne Couvelard, Didier Pélaprat, Safi Dokmak, Alain Sauvanet, Thierry Voisin, Alain Couvineau, Philippe Ruszniewski
OBJECTIVES: The recent finding that gastroenteropancreatic neuroendocrine tumors expressed the dopaminergic D2 receptor in addition to somatostatin (sst) receptors suggested that multiple targeting approaches might decrease hormone hypersecretion more effectively than sst agonists alone. METHODS: To test this hypothesis, (i) we measured the expression of sst receptor type 2 (sst2 receptor) and D2 receptor in 11 gastroenteropancreatic neuroendocrine tumors and (ii) we compared the ability of lanreotide, cabergoline, their combination, and sst/D2 chimeric ligands to decrease chromogranin A (CgA), gastrin, or serotonin release in primary cultures derived from these tumors...
May 2017: Pancreas
https://www.readbyqxmd.com/read/28369403/serum-gastrin-and-cholecystokinin-are-associated-with-subsequent-development-of-gastric-cancer-in-a-prospective-cohort-of-finnish-smokers
#14
Gwen Murphy, Christian C Abnet, Hyoyoung Choo-Wosoba, Emily Vogtmann, Stephanie J Weinstein, Philip R Taylor, Satu Männistö, Demetrius Albanes, Sanford M Dawsey, Jens F Rehfeld, Neal D Freedman
Background: Gastrin, which induces gastric acid secretion, and a structurally similar hormone, cholecystokinin (CCK)-a potent acid inhibitor, may each play a role in gastric cancer. However, few studies have investigated this hypothesis in humans. We therefore investigated whether serum gastrin or CCK concentrations at baseline were associated with the incidence of gastric non-cardia adenocarcinomas (GNCA), oesophagogastric junctional adenocarcinomas (EGJA) or gastric carcinoid tumours over 24 years of follow-up in a study nested within the all-male Alpha-Tocopherol, Beta-Carotene Cancer Prevention (ATBC) Study of Finnish smokers...
March 27, 2017: International Journal of Epidemiology
https://www.readbyqxmd.com/read/28365862/spinal-mechanisms-of-itch-transmission
#15
REVIEW
Devin M Barry, Admire Munanairi, Zhou-Feng Chen
Peripheral itch stimuli are transmitted by sensory neurons to the spinal cord dorsal horn, which then transmits the information to the brain. The molecular and cellular mechanisms within the dorsal horn for itch transmission have only been investigated and identified during the past ten years. This review covers the progress that has been made in identifying the peptide families in sensory neurons and the receptor families in dorsal horn neurons as putative itch transmitters, with a focus on gastrin-releasing peptide (GRP)-GRP receptor signaling...
April 1, 2017: Neuroscience Bulletin
https://www.readbyqxmd.com/read/28351312/neuropeptide-gastrin-releasing-peptide-induces-pi3k-reactive-oxygen-species-dependent-migration-in-lung-adenocarcinoma-cells
#16
Natália Jaeger, Rafael Sanguinetti Czepielewski, Maira Bagatini, Bárbara N Porto, Cristina Bonorino
Nerve fibers and neurotransmitters have increasingly been shown to have a role in tumor progression. Gastrin-releasing peptide is a neuropeptide linked to tumor aggressiveness, acting as an autocrine tumor growth factor by binding to its receptor, gastrin-releasing peptide receptor, expressed by many tumors. Although neuropeptides have been previously linked to tumor cell proliferation, more recent studies have uncovered roles for neuropeptides in chemotaxis and metastasis. Understanding the precise roles of such peptides in cancer is crucial to optimizing targeted therapy design...
March 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28347132/radiolabeled-peptides-current-and-new-perspectives
#17
REVIEW
Marta Opalinska, Alicja Hubalewska-Dydejczyk, Anna Sowa-Staszczak
Radiolabeled peptides have been the subject of research for over 20 years and during that time possibility/variety of peptide receptor imaging and later targeted radiotherapy increased significantly. The targeted receptors belong to the large family of G-protein-coupled receptors or tyrosine kinases receptors partially connected with them. They both regulate large signaling networks, control multiple cell functions and are implicated in many diseases including cancers. The essential feature of peptides used in nuclear medicine involves their ability to binding with high affinity and specify to their receptors overexpressed on tumor cells...
June 2017: Quarterly Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/28346098/filter-plate-based-screening-of-mip-spe-materials-for-capture-of-the-biomarker-pro-gastrin-releasing-peptide
#18
Kishore Kumar Jagadeesan, Cecilia Rossetti, Abed Abdel Qader, Léon Reubsaet, Börje Sellergren, Thomas Laurell, Simon Ekström
Affinity-based solid-phase extraction (SPE) is an attractive low-cost sample preparation strategy for biomarker analysis. Molecularly imprinted polymers (MIPs) as affinity sorbents offer unique opportunities for affinity SPE, due to their low manufacturing cost and high robustness. A limitation is the prediction of their affinity; therefore, screening of analyte recovery and specificity within a large range of SPE conditions is important in order to ensure high-sensitivity detection and assay reproducibility...
January 1, 2017: SLAS Discovery
https://www.readbyqxmd.com/read/28345820/meta-analysis-of-serum-gastrin-releasing-peptide-precursor-as-a-biomarker-for-diagnosis-of-small-cell-lung-cancer
#19
Shui Ping Lv, Yi Wang, Lang Huang, Fei Wang, Jian Guo Zhou, Hu Ma
Background: The serum level of gastrin-releasing peptide precursor (proGRP) is generally. elevated in patients with small cell lung cancer (SCLC). However, the diagnostic sensitivity and specificity of serum proGRP in SCLC cases remains controversial. The study aimed to assess the diagnostic value of this biomarker by meta-analysis. Materials and Methods: The Cochrane, Clinical trials, Pubmed, Web of Science and Embase databases were searched and diagnostic values were calculated or extracted. Statistical analysis was accomplished with RevMan 5...
February 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28344494/prophylactic-and-curative-anti-ulcerogenic-activity-and-the-possible-mechanisms-of-action-of-some-desert-plants
#20
Reham M El-Meligy, Amani S Awaad, Gamal A Soliman, Sanaa A Kenawy, Saleh I Alqasoumi
The present study aimed to evaluate the anti-ulcerogenic activities and the possible mechanisms of action of seven desert plants from different families. Conyza dioscoridis (L.) Desf. (Asteraceae), Euphorbia hirta L. (Euphorpiaceae), Origanum syriacum L., Salvia lanigera L. (Lamiaceae), Sisymbrium irio L., Solanum nigrum Linn. (Solanaceae) and Solenostemma arghel (Del.) Hayne. (Asclepiadaceae), were tested using prophylactic and curative models of absolute ethanol-induced ulcer, at three doses (125, 250 & 500 mg/kg) of each extract...
March 2017: Saudi Pharmaceutical Journal: SPJ: the Official Publication of the Saudi Pharmaceutical Society
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