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https://www.readbyqxmd.com/read/27894924/antidepressant-like-effects-exerted-by-the-intranasal-administration-of-a-glucagon-like-peptide-2-derivative-containing-cell-penetrating-peptides-and-a-penetration-accelerating-sequence-in-mice
#1
Sachie Sasaki-Hamada, Ryuji Nakamura, Yusuke Nakao, Toshiki Akimoto, Emi Sanai, Mio Nagai, Michiko Horiguchi, Chikamasa Yamashita, Jun-Ichiro Oka
The intracerebroventicular (i.c.v.) administration of glucagon-like peptide-2 (GLP-2) to rodents was shown to have antidepressant-like effects in imipramine-resistant depression-model mice. In order to utilize GLP-2 as a clinical treatment tool for depression, we herein focused on the intranasal delivery that is non-invasive approach, because the i.c.v. administration is invasive and impractical. In the present study, we prepared a GLP-2 derivative containing cell penetrating peptides (CPPs) and a penetration accelerating sequence (PAS) (PAS-CPPs-GLP-2) for the intranasal (i...
November 25, 2016: Peptides
https://www.readbyqxmd.com/read/27892685/gut-a-key-player-in-the-pathogenesis-of-type-2-diabetes
#2
Giovanna Muscogiuri, Giancarlo Balercia, Luigi Barrea, Angelo Cignarelli, Francesco Giorgino, Jens J Holst, Daniela Laudisio, Francesco Orio, Giacomo Tirabassi, Annamaria Colao
The gut regulates glucose and energy homeostasis; thus, the presence of ingested nutrients into the gut activates sensing mechanisms that affect both glucose homeostasis and regulate food intake. Increasing evidence suggest that gut may also play a key role in the pathogenesis of type 2 diabetes which may be related to both the intestinal microbiological profile and patterns of gut hormones secretion. Intestinal microbiota includes trillions of microorganisms but its composition and function may be adversely affected in type 2 diabetes...
November 28, 2016: Critical Reviews in Food Science and Nutrition
https://www.readbyqxmd.com/read/27773841/purification-partial-characterization-and-bioactivity-of-sulfated-polysaccharides-from-grateloupia-livida
#3
Liu Tang, Yicun Chen, Zebin Jiang, Shuping Zhong, Weizhou Chen, Fuchun Zheng, Ganggang Shi
Purification, preliminary characterization and bioactivity of polysaccharides from Grateloupia livida (GL) were investigated. Three water-soluble sulfated polysaccharide fractions (GLP-1, GLP-2 and GLP-3) were isolated and purified from the edible and medicinal red seaweed, Grateloupia livida (Harv.) Yamada by DEAE Sepharose CL-6B and Sephadex G-100 column chromatography, and chemical characterization was performed by HPGPC, GC-MS, FT-IR and SEM. In addition, anticoagulant activities were determined by activated partial thromboplastin time (APTT), thrombin time (TT) and prothrombin time (PT) using normal human plasma in vitro...
October 20, 2016: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/27770239/irinotecan-induced-mucositis-the-interactions-and-potential-role-of-glp-2-analogues
#4
Bronwen J Mayo, Andrea M Stringer, Joanne M Bowen, Emma H Bateman, Dorothy M Keefe
PURPOSE: A common side effect of irinotecan administration is gastrointestinal mucositis, often manifesting as severe diarrhoea. The damage to the structure and function of the gastrointestinal tract caused by this cytotoxic agent is debilitating and often leads to alterations in patients' regimens, hospitalisation or stoppage of treatment. The purpose of this review is to identify mechanisms of irinotecan-induced intestinal damage and a potential role for GLP-2 analogues for intervention...
October 21, 2016: Cancer Chemotherapy and Pharmacology
https://www.readbyqxmd.com/read/27732058/vascular-biology-of-glucagon-receptor-superfamily-peptides-complexity-controversy-and-clinical-relevance
#5
Gemma Pujadas, Daniel J Drucker
Regulatory peptides produced in islet and gut endocrine cells, including glucagon, GLP-1, GLP-2, and GIP exert actions with considerable metabolic importance and translational relevance. Although the clinical development of GLP-1 receptor (GLP-1R) agonists and dipeptidyl peptidase-4(DPP4) inhibitors has fostered research into how these hormones act on the normal and diseased heart, less is known about the actions of these peptides on blood vessels. Here we review the effects of these peptide hormones on normal blood vessels, and highlight their vascular actions in the setting of experimental and clinical vascular injury...
October 12, 2016: Endocrine Reviews
https://www.readbyqxmd.com/read/27729007/intestinal-microbiota-could-transfer-host-gut-characteristics-from-pigs-to-mice
#6
H Diao, H L Yan, Y Xiao, B Yu, J Yu, J He, P Zheng, B H Zeng, H Wei, X B Mao, D W Chen
BACKGROUND: The present study was conducted to compare the differences in gut microbiota composition and gut-phenotypes among pig breeds, and determine whether these differences would transmit to mice colonized with fecal microbiota of different pig breeds. A total of 24 1-day-old germ-free BALB/C mice were divided into 3 groups (TFM, YFM and RFM), which were transplanted with intact fecal microbiota of Tibetan pig (TP), Yorkshire pig (YP) and Rongchang pig (RP), respectively. RESULTS: Results showed that different pig breeds exhibited distinct gut microbiota profile based on high-throughput pyrosequencing...
October 11, 2016: BMC Microbiology
https://www.readbyqxmd.com/read/27720872/lareth-25-and-%C3%AE-cd-improve-central-transitivity-and-central-pharmacological-effect-of-the-glp-2-peptide
#7
Yusuke Nakao, Michiko Horiguchi, Ryuji Nakamura, Sachie Sasaki-Hamada, Chihiro Ozawa, Taichi Funane, Ryo Ozawa, Jun-Ichiro Oka, Chikamasa Yamashita
Depression is a common mental disorder. More than 350 million people of all ages suffer from depression worldwide. Although a number of antidepressants are available, >20% of patients with major depressive disorder suffer from treatment-resistant depression. Therefore, development of novel therapeutics to overcome this condition is required. We reported that intracerebroventricular administration of glucagon-like peptide-2 (GLP-2) exerts antidepressant-like effects treated with or without adrenocorticotropic hormone...
October 5, 2016: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/27716276/elevations-in-growth-hormone-and-glucagon-like-peptide-2-levels-on-admission-are-associated-with-increased-mortality-in-trauma-patients
#8
Matthew P Rowan, Darrick J Beckman, Julie A Rizzo, Claire L Isbell, Christopher E White, Stephen M Cohn, Kevin K Chung
BACKGROUND: Burn and trauma patients present a clinical challenge due to metabolic derangements and hypermetabolism that result in a prolonged catabolic state with impaired healing and secondary complications, including ventilator dependence. Previous work has shown that circulating levels of growth hormone (GH) are predictive of mortality in critically ill adults, but few studies have examined the prognostic potential of GH levels in adult trauma patients. METHODS: To investigate the utility of GH and other endocrine responses in the prediction of outcomes, we conducted a prospective, observational study of adult burn and trauma patients...
October 4, 2016: Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine
https://www.readbyqxmd.com/read/27664588/influence-of-glucagon-like-peptide-2-on-energy-homeostasis
#9
REVIEW
Sara Baldassano, Antonella Amato, Flavia Mulè
Glucagon like peptide-2 (GLP-2) is a gastrointestinal hormone released from enteroendocrine L-type cells together with glucagon like peptide-1 in response to dietary nutrients. GLP-2 acts through a specific receptor, the GLP-2 receptor, mainly located in the gut and in the brain. Classically, GLP-2 is considered a trophic hormone involved in the maintenance of intestinal epithelial morphology and function. This role has been targeted for therapies promoting repair and adaptive growth of the intestinal mucosa...
December 2016: Peptides
https://www.readbyqxmd.com/read/27663542/serum-fasting-glp-1-and-glp-2-associate-with-intestinal-adaptation-in-pediatric-onset-intestinal-failure
#10
Annika Mutanen, Mikko P Pakarinen
AIM: Glukagon-like-peptide-1 (GLP-1) and -2 (GLP-2), produced by intestinal L-cells, are key hormones regulating intestinal transit, secretion, absorption, and mucosal growth. We evaluated naïve fasting serum GLP-1 and GLP-2 levels in pediatric intestinal failure (IF). METHODS: Fifty-five IF patients with median age 4.2 (IQR 1.3-12) years and 47 matched healthy controls underwent measurement of fasting serum GLP-1 and GLP-2. RESULTS: Serum GLP-2 [19...
September 14, 2016: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/27660290/differential-effects-on-intestinal-adaptation-following-exogenous-glucagon-like-peptide-2-therapy-with-and-without-enteral-nutrition-in-neonatal-short-bowel-syndrome
#11
David W Lim, Abdoulaye Diané, Mitsuru Muto, Donna F Vine, Patrick N Nation, Pamela R Wizzard, David L Sigalet, David L Bigam, Paul B Pencharz, Justine M Turner, Paul W Wales
BACKGROUND: We aim to study the efficacy of exogenously administered glucagon-like peptide 2 (GLP-2) on intestinal adaptation in 2 preclinical models of neonatal short bowel syndrome (SBS) according to remnant intestinal anatomy, with and without ileum. Furthermore, we aim to determine if this adaptive effect was potentiated with enteral nutrition (EN). METHODS: Neonatal piglets were block-randomized to 75% mid-intestinal (JI group, retains ileum) or distal-intestinal (JC group, has no ileum) resection or no resection (sham control) and GLP-2 treatment (11 nmol/kg/d) or saline control for 7 days...
September 22, 2016: JPEN. Journal of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/27641625/generation-of-glucagon-like-peptide-2-expressing-saccharomyces-cerevisiae-and-its-improvement-of-the-intestinal-health-of-weaned-rats
#12
Zhongwei Zhang, Xiaodong Wu, Lili Cao, Zhengdong Zhong, Yan Zhou
We aimed to assess the feasibility of enhancing the intestinal development of weaned rats using glucagon-like peptide-2 (GLP-2)-expressing Saccharomyces cerevisiae (S. cerevisiae). GLP-2-expressing S. cerevisiae (GLP2-SC) was generated using a recombinant approach. The diet of weaned rats was supplemented with the GLP2-SC strain. The average daily gain (ADG), the intestinal morphology and the activities of the digestive enzymes in the jejunum were tested to assess the influence of the GLP2-SC strain on intestinal development...
September 19, 2016: Microbial Biotechnology
https://www.readbyqxmd.com/read/27580097/current-and-potential-therapeutic-targets-of-glucagon-like-peptide-2
#13
Kaori Austin, Melanie A Markovic, Patricia L Brubaker
Glucagon-like peptide-2 (GLP-2) is a gut hormone that promotes highly specific growth and function of the intestinal epithelium. Recent studies have begun to elucidate the complex mechanism of action of GLP-2, which is mediated indirectly through other intestinal factors. Although a long-acting GLP-2 analog has recently been approved for treatment of adult patients with short bowel syndrome, there remain numerous conditions characterized by intestinal insufficiency for which pre-clinical studies, as well as some limited clinical data, support further consideration of GLP-2 for expanded therapeutic use...
August 28, 2016: Current Opinion in Pharmacology
https://www.readbyqxmd.com/read/27565666/glp-1-and-glp-2-levels-are-correlated-with-satiety-regulation-after-roux-en-y-gastric-bypass-results-of-an-exploratory-prospective-study
#14
Everton Cazzo, José Carlos Pareja, Elinton Adami Chaim, Bruno Geloneze, Maria Rita Lazzarini Barreto, Daniéla Oliveira Magro
BACKGROUND: Changes in satiety regulation are known to play a pivotal role in the weight loss effects of Roux-en-Y gastric bypass (RYGB) and the mechanisms by which these changes occur are not entirely known. There are previous reports of the influence of GLP-1 to cause enhancement of satiation, but in regard to GLP-2, it remains unclear. This study aimed to determine whether there is a correlation between the levels of GLP-1 and GLP-2 and satiety regulation following RYGB. MATERIALS AND METHODS: An exploratory prospective cohort study was made which enrolled 11 individuals who underwent RYGB and were followed-up for 12 months...
August 27, 2016: Obesity Surgery
https://www.readbyqxmd.com/read/27503937/glucagon-like-peptide-2-stimulates-postresection-intestinal-adaptation-in-preterm-pigs-by-affecting-proteins-related-to-protein-carbohydrate-and-sulphur-metabolism
#15
Pingping Jiang, Andreas Vegge, Thomas Thymann, Jennifer Man-Fan Wan, Per Torp Sangild
BACKGROUND: Exogenous glucagon-like peptide 2 (GLP-2) stimulates intestinal adaptation after resection in animal models of pediatric short bowel syndrome (SBS). It is unknown whether the molecular mechanisms of such GLP-2 effects are similar to those of postresection spontaneous adaptation. Using preterm pigs as a model, we hypothesized that GLP-2 treatment would change the intestinal proteome within the first week after resection, relative to individuals not resected or resected without GLP-2 treatment...
August 8, 2016: JPEN. Journal of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/27456494/effect-of-prebiotic-intake-on-gut-microbiota-intestinal-permeability-and-glycemic-control-in-children-with-type-1-diabetes-study-protocol-for-a-randomized-controlled-trial
#16
Josephine Ho, Raylene A Reimer, Manpreet Doulla, Carol Huang
BACKGROUND: The gut microbiome is increasingly recognized as a contributor to disease states. Patients with type 1 diabetes (DM1) have distinct gut microbiota in comparison to non-diabetic individuals, and it has been linked to changes in intestinal permeability, inflammation and insulin resistance. Prebiotics are non-digestible carbohydrates that alter gut microbiota and could potentially improve glycemic control in children with DM1. This pilot study aims to determine the feasibility of a 12-week dietary intervention with prebiotics in children with DM1...
2016: Trials
https://www.readbyqxmd.com/read/27439698/c-fos-induction-by-gut-hormones-and-extracellular-atp-in-osteoblastic-like-cell-lines
#17
Elda Leonor Pacheco-Pantoja, Jane P Dillon, Peter J M Wilson, William D Fraser, James A Gallagher
It is widely accepted that the c-Fos gene has a role in proliferation and differentiation of bone cells. ATP-induced c-Fos activation is relevant to bone homeostasis, because nucleotides that are present in the environment of bone cells can contribute to autocrine/paracrine signalling. Gut hormones have previously been shown to have an effect on bone metabolism. In this study, we used the osteoblastic Saos-2 cell line transfected with a c-Fos-driven reporter stimulated with five gut hormones: glucose inhibitory peptide (GIP), glucagon-like peptide-1 (GLP-1), glucagon-like peptide-2 (GLP-2), ghrelin and obestatin, in the presence or absence of ATP...
July 20, 2016: Purinergic Signalling
https://www.readbyqxmd.com/read/27433811/safety-and-efficacy-of-teduglutide-gattex-in-patients-with-crohn-s-disease-and-need-for-parenteral-support-due-to-short-bowel-syndrome-associated-intestinal-failure
#18
Bharati Kochar, Millie D Long, Edward Shelton, Lorraine Young, Francis A Farraye, Vijay Yajnik, Hans Herfarth
BACKGROUND: Teduglutide is a GLP-2 analogue indicated for treatment of adults with short bowel syndrome (SBS). Because of the rarity of SBS, real-world safety or efficacy data are not available in patients with Crohn's disease (CD) and SBS treated with teduglutide. AIM: To evaluate teduglutide's safety and efficacy in CD patients with SBS. METHODS: We conducted a retrospective cohort study at 3 tertiary centers in the United States between 2012 and 2014...
July 18, 2016: Journal of Clinical Gastroenterology
https://www.readbyqxmd.com/read/27345324/glucagon-like-peptide-2-and-its-beneficial-effects-on-gut-function-and-health-in-production-animals
#19
REVIEW
E E Connor, C M Evock-Clover, E H Wall, R L Baldwin, M Santin-Duran, T H Elsasser, D M Bravo
Numerous endocrine cell subtypes exist within the intestinal mucosa and produce peptides contributing to the regulation of critical physiological processes including appetite, energy metabolism, gut function, and gut health. The mechanisms of action and the extent of the physiological effects of these enteric peptides are only beginning to be uncovered. One peptide in particular, glucagon-like peptide 2 (GLP-2) produced by enteroendocrine L cells, has been fairly well characterized in rodent and swine models in terms of its ability to improve nutrient absorption and healing of the gut after injury...
July 2016: Domestic Animal Endocrinology
https://www.readbyqxmd.com/read/27324885/management-and-complications-of-short-bowel-syndrome-an-updated-review
#20
REVIEW
Robert E Carroll, Enrico Benedetti, Joseph P Schowalter, Alan L Buchman
Short bowel syndrome (SBS) is defined as loss of bowel mass from surgical resection, congenital defects, or disease. Intestinal failure (IF) includes the subset of SBS unable to meet nutrition needs with enteral supplements and requires parenteral nutrition (PN). The parenteral treatment of SBS is now a half-century old. Recent pharmacologic treatment (GLP-2 analogues) has begun to make a significant impact in the care and ultimate management of these patients such that the possibility of reducing PN requirements in formerly PN-dependent patients is a now a real possibility...
July 2016: Current Gastroenterology Reports
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