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https://www.readbyqxmd.com/read/28512033/bifidobacterium-cect-7765-modulates-early-stress-induced-immune-neuroendocrine-and-behavioral-alterations-in-mice
#1
A Moya-Pérez, A Perez-Villalba, A Benítez-Páez, I Campillo, Y Sanz
Emerging evidence suggests that there is a window of opportunity within the early developmental period, when microbiota-based interventions could play a major role in modulating the gut-brain axis and, thereby, in preventing mood disorders. This study aims at evaluating the effects and mode of action of Bifidobacterium pseudocatenulatum CECT 7765 in a murine model of chronic stress induced by maternal separation (MS). C57Bl/6J male breast-fed pups were divided into four groups, which were subjected or not to MS and supplemented with placebo or B...
May 13, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28509372/differential-expression-of-micrornas-related-to-irritable-bowel-syndrome-in-a-rabbit-model
#2
Qinqin Yang, Xiaoping Xu, Hongshu Zhao, Yueqin Cai, Yongming Pan, Jianqin Xu, Quanxin Ma, Minli Chen
AIM: In the study we evaluated differential expression of miRNAs in the white hair and black eyes(WHBE) rabbit model of irritable bowel syndrome(IBS). METHODS: WHBE IBS rabbits were exposed to moist heat, stress, and stimulation with a low-dose laxative. Intestional propulsion rate(IPR) was measured. Blood samples were taken to detect changes in serum 5-hydroxytryptamine(5-HT) and dopamine(DA) levels, and colon tissues were to detect c-fos by immunohistochemistry...
May 16, 2017: Journal of Digestive Diseases
https://www.readbyqxmd.com/read/28449715/functional-implications-of-microbial-and-viral-gut-metagenome-changes-in-early-stage-l-dopa-na%C3%A3-ve-parkinson-s-disease-patients
#3
J R Bedarf, F Hildebrand, L P Coelho, S Sunagawa, M Bahram, F Goeser, P Bork, U Wüllner
BACKGROUND: Parkinson's disease (PD) presently is conceptualized as a protein aggregation disease in which pathology involves both the enteric and the central nervous system, possibly spreading from one to another via the vagus nerves. As gastrointestinal dysfunction often precedes or parallels motor symptoms, the enteric system with its vast diversity of microorganisms may be involved in PD pathogenesis. Alterations in the enteric microbial taxonomic level of L-DOPA-naïve PD patients might also serve as a biomarker...
April 28, 2017: Genome Medicine
https://www.readbyqxmd.com/read/28400091/metabolomic-changes-demonstrate-reduced-bioavailability-of-tyrosine-and-altered-metabolism-of-tryptophan-via-the-kynurenine-pathway-with-ingestion-of-medical-foods-in-phenylketonuria
#4
Denise M Ney, Sangita G Murali, Bridget M Stroup, Nivedita Nair, Emily A Sawin, Fran Rohr, Harvey L Levy
BACKGROUND: Deficiencies of the monoamine neurotransmitters, such as dopamine synthesized from Tyr and serotonin synthesized from Trp, are of concern in PKU. Our objective was to utilize metabolomics analysis to assess monoamine metabolites in subjects with PKU consuming amino acid medical foods (AA-MF) and glycomacropeptide medical foods (GMP-MF). METHODS: Subjects with PKU consumed a low-Phe diet combined with AA-MF or GMP-MF for 3weeks each in a randomized, controlled, crossover study...
April 6, 2017: Molecular Genetics and Metabolism
https://www.readbyqxmd.com/read/28246304/acute-adaption-to-oral-or-intravenous-phosphate-requires-parathyroid-hormone
#5
Linto Thomas, Carla Bettoni, Thomas Knöpfel, Nati Hernando, Jürg Biber, Carsten A Wagner
Phosphate (Pi) homeostasis is regulated by renal, intestinal, and endocrine mechanisms through which Pi intake stimulates parathyroid hormone (PTH) and fibroblast growth factor-23 secretion, increasing phosphaturia. Mechanisms underlying the early adaptive phase and the role of the intestine, however, remain ill defined. We investigated mineral, endocrine, and renal responses during the first 4 hours after intravenous and intragastric Pi loading in rats. Intravenous Pi loading (0.5 mmol) caused a transient rise in plasma Pi levels and creatinine clearance and an increase in phosphaturia within 10 minutes...
March 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28228068/stress-in-gastrointestinal-tract-and-stable-gastric-pentadecapeptide-bpc-157-finally-do-we-have-a-solution
#6
Predrag Sikiric, Sven Seiwerth, Rudolf Rucman, Domagoj Drmic, Mirjana Stupnisek, Antonio Kokot, Marko Sever, Ivan Zoricic, Zoran Zoricic, Lovorka Batelja, Tihomil Ziger, Josipa Vlainic, Zarko Rasic, Martina Lovric Bencic
Selye's syndrome produced by diverse nocuous agents and "response to damage as such" means Selye's stress triad in stress coping response to reestablish homeostasis. Logically, from the gastrointestinal tract viewpoint, such organoprotective/healing response implies the angiogenic growth factors that commonly signify the healing. Thereby, the gastric pentadecapeptide BPC 157-organoprotection (huge range of beneficial effects) signifies the Selye's stress concept/stress coping response implemented in and from gastrointestinal tract, and BPC 157 as an integrative mediator that integrates the adaptive bodily response to stress...
February 20, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28176326/identification-of-novel-inhibitors-of-the-amino-acid-transporter-b-0-at1-slc6a19-a-potential-target-to-induce-protein-restriction-and-to-treat-type-2-diabetes
#7
Qi Cheng, Nishank Shah, Angelika Bröer, Stephen Fairweather, Yang Jiang, Dieter Schmoll, Ben Corry, Stefan Bröer
BACKGROUND AND PURPOSE: The neutral amino acid transporter B(0) AT1 (SLC6A19) has recently been identified as a possible target to treat type 2 diabetes and related disorders. B(0) AT1 mediates the Na(+) -dependent uptake of all neutral amino acids. For surface expression and catalytic activity, B(0) AT1 requires coexpression of collectrin (TMEM27). In this study, we established tools to identify and evaluate novel inhibitors of B(0) AT1. EXPERIMENTAL APPROACH: A CHO-based cell line was generated, stably expressing collectrin and B(0) AT1...
March 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28135411/use-of-cryopoor-plasma-for-albumin-replacement-and-continuous-antimicrobial-infusion-for-treatment-of-septic-peritonitis-in-a-dog
#8
Meaghan K Ropski, Julien Guillaumin, Andrea A Monnig, Katy Townsend, Mary A McLoughlin
OBJECTIVE: To report the successful management of a dog with septic peritonitis and septic shock secondary to enterectomy dehiscence using novel techniques for identification of intestinal dehiscence and for septic shock treatment. CASE SUMMARY: A 5-year-old castrated male Bernese Mountain Dog presented for lethargy 6 days following enterotomy for foreign body obstruction. Septic peritonitis was identified due to dehiscence of the enterotomy site, and resection and anastomosis were performed using a gastrointestinal anastomosis and thoracoabdominal stapling device...
May 2017: Journal of Veterinary Emergency and Critical Care
https://www.readbyqxmd.com/read/28065827/gastric-bypass-surgery-recruits-a-gut-ppar-%C3%AE-striatal-d1r-pathway-to-reduce-fat-appetite-in-obese-rats
#9
Mohammed K Hankir, Florian Seyfried, Constantin A Hintschich, Thi-Ai Diep, Karen Kleberg, Mathias Kranz, Winnie Deuther-Conrad, Luis A Tellez, Michael Rullmann, Marianne Patt, Jens Teichert, Swen Hesse, Osama Sabri, Peter Brust, Harald S Hansen, Ivan E de Araujo, Ute Krügel, Wiebke K Fenske
Bariatric surgery remains the single most effective long-term treatment modality for morbid obesity, achieved mainly by lowering caloric intake through as yet ill-defined mechanisms. Here we show in rats that Roux-en-Y gastric bypass (RYGB)-like rerouting of ingested fat mobilizes lower small intestine production of the fat-satiety molecule oleoylethanolamide (OEA). This was associated with vagus nerve-driven increases in dorsal striatal dopamine release. We also demonstrate that RYGB upregulates striatal dopamine 1 receptor (D1R) expression specifically under high-fat diet feeding conditions...
February 7, 2017: Cell Metabolism
https://www.readbyqxmd.com/read/28063683/diphasic-dyskinesias-during-levodopa-carbidopa-intestinal-gel-lcig-infusion-in-parkinson-s-disease
#10
Mario Meloni, Paolo Solla, Marcello Mario Mascia, Francesco Marrosu, Antonino Cannas
OBJECTIVES: Levodopa-carbidopa intestinal gel infusion (LCIG) is indicated in patients with advanced levodopa-responsive Parkinson's disease (PD) for the treatment of motor fluctuations and dyskinesias. Here we describe 4 PD patients who developed disabling diphasic dyskinesias after LCIG initiation. METHODS: The clinical data of 33 PD patients consecutively treated with LCIG therapy were obtained through direct clinical observation and detailed review of medical records...
December 31, 2016: Parkinsonism & related Disorders
https://www.readbyqxmd.com/read/28057070/distinct-pattern-of-enteric-phospho-alpha-synuclein-aggregates-and-gene-expression-profiles-in-patients-with-parkinson-s-disease
#11
Martina Barrenschee, Dimitri Zorenkov, Martina Böttner, Christina Lange, François Cossais, Amelie Bernadette Scharf, Günther Deuschl, Susanne A Schneider, Mark Ellrichmann, Annette Fritscher-Ravens, Thilo Wedel
Phosphorylated alpha-synuclein (p-α-syn) containing Lewy bodies (LBs) and Lewy neurites (LNs) are neuropathological hallmarks of Parkinson's disease (PD) in the central nervous system (CNS). Since they have been also demonstrated in the enteric nervous system (ENS) of PD patients, the aim of the study was to analyze enteric p-α-syn positive aggregates and intestinal gene expression. Submucosal rectal biopsies were obtained from patients with PD and controls and processed for dual-label-immunohistochemistry for p-α-syn and PGP 9...
January 5, 2017: Acta Neuropathologica Communications
https://www.readbyqxmd.com/read/27999087/selye-s-general-adaptation-syndrome-stress-induced-gastro-duodenal-ulceration-and-ibd
#12
George Fink
Hans Selye in a note to Nature in 1936 initiated the field of stress research by showing that rats exposed to nocuous stimuli responded by way of a "general adaptation syndrome" (GAS). One of the main features of the GAS was the "formation of acute erosions in the digestive tract, particularly in the stomach, small intestine and appendix". This provided experimental evidence for the view based on clinical data that gastro-duodenal (peptic) ulcers could be caused by stress. This hypothesis was challenged by Marshall and Warren's Nobel-prize (2005) winning discovery of a causal association between Helicobacter pylori and peptic ulcers...
December 20, 2016: Journal of Endocrinology
https://www.readbyqxmd.com/read/27924137/exercise-induced-stress-behavior-gut-microbiota-brain-axis-and-diet-a-systematic-review-for-athletes
#13
REVIEW
Allison Clark, Núria Mach
Fatigue, mood disturbances, under performance and gastrointestinal distress are common among athletes during training and competition. The psychosocial and physical demands during intense exercise can initiate a stress response activating the sympathetic-adrenomedullary and hypothalamus-pituitary-adrenal (HPA) axes, resulting in the release of stress and catabolic hormones, inflammatory cytokines and microbial molecules. The gut is home to trillions of microorganisms that have fundamental roles in many aspects of human biology, including metabolism, endocrine, neuronal and immune function...
2016: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/27914942/is-there-a-role-for-ghrelin-in-central-dopaminergic-systems-focus-on-nigrostriatal-and-mesocorticolimbic-pathways
#14
REVIEW
Alicia Stievenard, Mathieu Méquinion, Zane B Andrews, Alain Destée, Marie-Christine Chartier-Harlin, Odile Viltart, Christel C Vanbesien-Mailliot
The gastro-intestinal peptide ghrelin has been assigned many functions. These include appetite regulation, energy metabolism, glucose homeostasis, intestinal motility, anxiety, memory or neuroprotection. In the last decade, this pleiotropic peptide has been proposed as a therapeutic agent in gastroparesis for diabetes and in cachexia for cancer. Ghrelin and its receptor, which is expressed throughout the brain, play an important role in motivation and reward. Ghrelin finely modulates the mesencephalic dopaminergic signaling and is thus currently studied in pathological conditions including dopamine-related disorders...
February 2017: Neuroscience and Biobehavioral Reviews
https://www.readbyqxmd.com/read/27885812/a-whole-animal-chemical-screen-approach-to-identify-modifiers-of-intestinal-neutrophilic-inflammation
#15
EDITORIAL
Stefan H Oehlers, Maria Vega Flores, Christopher J Hall, Liuyang Wang, Dennis C Ko, Kathryn E Crosier, Philip S Crosier
By performing two high-content small molecule screens on dextran sodium sulfate- and trinitrobenzene sulfonic acid-induced zebrafish enterocolitis models of inflammatory bowel disease, we have identified novel anti-inflammatory drugs from the John Hopkins Clinical Compound Library that suppress neutrophilic inflammation. Live imaging of neutrophil distribution was used to assess the level of acute inflammation and concurrently screen for off-target drug effects. Supporting the validity of our screening strategy, most of the anti-inflammatory drug hits were known antibiotics or anti-inflammatory agents...
February 2017: FEBS Journal
https://www.readbyqxmd.com/read/27859651/sustained-striatal-dopamine-levels-following-intestinal-levodopa-infusions-in-parkinson-s-disease-patients
#16
Marios Politis, Anna Sauerbier, Clare Loane, Nicola Pavese, Anne Martin, Benjamin Corcoran, David J Brooks, K Ray-Chaudhuri, Paola Piccini
BACKGROUND: The objective of this study was to investigate in vivo the ability of levodopa/carbidopa intestinal gel infusions to produce sustained striatal dopamine levels and to improve clinical outcomes in Parkinson's disease patients. METHODS: Six advanced Parkinson's disease patients had serial [(11) C]raclopride PET to assess levodopa/carbidopa intestinal gel infusion-induced rises in striatal dopamine as reflected by a fall in dopamine-D2/3 receptor availability...
February 2017: Movement Disorders: Official Journal of the Movement Disorder Society
https://www.readbyqxmd.com/read/27583474/pancreatic-neuroendocrine-tumor-secreting-vasoactive-intestinal-peptide-and-dopamine-with-pulmonary-emboli-a-case-report
#17
Naris Nilubol, Esther M Freedman, Martha M Quezado, Dhaval Patel, Electron Kebebew
CONTEXT: The vasoactive intestinal peptide-secreting neuroendocrine tumor (VIPoma) is a very rare pancreatic tumor. We report the first case of a patient with VIPoma that co-secreted dopamine and had pulmonary emboli. CASE DESCRIPTION: A 67-year-old woman presented with 2 months of watery diarrhea, severe generalized weakness,6.8 kg of weight loss, a facial rash, and hypokalemia. Colonoscopy did not reveal the cause of the chronic diarrhea. Initial biochemical testing showed markedly elevated serum vasoactive intestinal peptide (VIP) and pancreatic polypeptide...
October 2016: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/27542316/enhanced-bioadhesivity-of-dopamine-functionalized-polysaccharidic-membranes-for-general-surgery-applications
#18
F Scognamiglio, A Travan, M Borgogna, I Donati, E Marsich, J W A M Bosmans, L Perge, M P Foulc, N D Bouvy, S Paoletti
UNLABELLED: An emerging strategy to improve adhesiveness of biomaterials in wet conditions takes inspiration from the adhesive features of marine mussel, which reside in the chemical reactivity of catechols. In this work, a catechol-bearing molecule (dopamine) was chemically grafted onto alginate to develop a polysaccharide-based membrane with improved adhesive properties. The dopamine-modified alginates were characterized by NMR, UV spectroscopy and in vitro biocompatibility. Mechanical tests and in vitro adhesion studies pointed out the effects of the grafted dopamine within the membranes...
October 15, 2016: Acta Biomaterialia
https://www.readbyqxmd.com/read/27522721/-modern-prokinetics-and-their-role-in-the-treatment-of-gastroenterological-pathology
#19
REVIEW
A A Sheptulin, I B Belousova
The importance of prokinetics (drugs stimulating motor function of the gastrointestinal tract) arises from the high prevalence of gastroenterological pathology associated with primary or secondary disturbances of this function in esophagus, stomach, and intestines. The main groups of prokinetics are beta-blockers of dopamine receptors, inhibitors of acetylcholine esterase (or their combination with dopamine receptor blockers), 5-HT4-receptor agonists. They find wide application for the treatment of gastroesophgeal reflux disease, functional dyspepsia and constipation, obstipational form of irritable bowel syndrome, and other conditions accompanied by motor function disorders of the gastrointestinal tract...
2016: Klinicheskaia Meditsina
https://www.readbyqxmd.com/read/27495198/treating-the-motor-symptoms-of-parkinson-disease
#20
John C Morgan, Susan H Fox
PURPOSE OF REVIEW: After a patient is diagnosed with Parkinson disease (PD), there are many therapeutic options available. This article provides examples of prototypical patients encountered in clinical practice and illustrates the various pharmacologic and nonpharmacologic treatment options for the motor symptoms of PD. RECENT FINDINGS: Levodopa became available in the late 1960s and remains the gold standard for the treatment of PD even today. Since that time, amantadine, monoamine oxidase type B inhibitors, dopamine agonists, and catechol-O-methyltransferase inhibitors have emerged as monotherapy, add-on therapies, or both, in the armamentarium against PD...
August 2016: Continuum: Lifelong Learning in Neurology
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