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Showing 25 to 36 of 73 entries
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Identification of neurogenic intestinal motility patterns in silver perch (Bidyanus bidyanus) that persist over wide temperature ranges.

Neurogastroenterology and motility : the official journal of the European Gastrointestinal Motility Society

Jones BS, Keightley LJ, Harris JO, Wiklendt L, Spencer NJ, Dinning PG.
PMID: 33340207
Neurogastroenterol Motil. 2021 May;33(5):e14037. doi: 10.1111/nmo.14037. Epub 2020 Dec 19.

BACKGROUND: Fish are increasingly being utilized as a model species for genetic manipulation studies related to gastrointestinal (GI) motility. Our aim was to identify whether patterns of GI motility in fish and the mechanisms underlying their generation are similar...

Fast synaptic excitatory neurotransmission in the human submucosal plexus.

Neurogastroenterology and motility : the official journal of the European Gastrointestinal Motility Society

Michel K, Krüger D, Schäuffele S, Zeller F, Demir IE, Theisen J, Schemann M.
PMID: 33960578
Neurogastroenterol Motil. 2021 Aug;33(8):e14164. doi: 10.1111/nmo.14164. Epub 2021 May 07.

BACKGROUND: Acetylcholine is the main excitatory neurotransmitter in the enteric nervous system (ENS) in all animal models examined so far. However, data for the human ENS is scarce.METHODS: We used neuroimaging using voltage and calcium dyes, Ussing chamber, and...

Control of catecholamine and serotonin release from the chromaffin tissue of the Atlantic hagfish.

The Journal of experimental biology

Bernier N, Perry S.
PMID: 9320412
J Exp Biol. 1996;199:2485-97.

An in situ saline-perfused systemic heart/posterior cardinal vein preparation of the Atlantic hagfish (Myxine glutinosa) was used to assess (1) the ability of the chromaffin tissue to release catecholamines in response to adrenocorticotropic hormone (ACTH; 7.5 i.u. kg-1), serotonin...

The Frequency-Dependence of Pre- and Postganglionic Nerve Stimulation of Pig and Rat Bladder.

International neurourology journal

Kitney D, Crook J, Chakrabarty B, Kanai A, Vahabi B, Lovick T, Fry C.
PMID: 34610714
Int Neurourol J. 2021 Sep;25(3):210-218. doi: 10.5213/inj.2142002.001. Epub 2021 Sep 30.

PURPOSE: The urinary bladder generates phasic contractions via action potentials generated in pre- and then postganglionic neurons. Whilst the frequency-dependence of postganglionic neurons to generate contractions has been quantified, the dynamic range of preganglionic neurons is less clear and...

Tolerance and sensitization to stimulant and depressant effects of nicotine in intracranial self-stimulation in the rat.

Behavioural pharmacology

Herberg LJ, Montgomery AM, Rose IC.
PMID: 11224211
Behav Pharmacol. 1993;4(4):419-427.

Nicotine is thought to be an important factor in addiction to tobacco but its psychopharmacological properties are still uncertain. In the present study, rats were trained to operate a pedal to obtain threshold-current, variable-interval hypothalmic stimulation. Response rates were...

Effects of Dangshen on isolated gastric muscle strips in rats.

World journal of gastroenterology

Zheng TZ, Li W, Qu SY, Ma YM, Ding YH, Wei YL.
PMID: 11819319
World J Gastroenterol. 1998 Aug;4(4):354-356. doi: 10.3748/wjg.v4.i4.354.

AIM:To study the effects of Dangshen dried root of Codonopsis Pilosula (Franch) Nannf on contractile activity of isolated gastric muscle strips in rats and its possible mechanism involved.METHODS:Each isolated gastric muscle strip was put in a tissue chamber containing...

Mediation of Endogenous beta-endorphin by Tetrandrine to Lower Plasma Glucose in Streptozotocin-induced Diabetic Rats.

Evidence-based complementary and alternative medicine : eCAM

Hsu JH, Wu YC, Liou SS, Liu IM, Huang LW, Cheng JT.
PMID: 15480445
Evid Based Complement Alternat Med. 2004 Sep 01;1(2):193-201. doi: 10.1093/ecam/neh027.

The role of beta-endorphin in the plasma glucose-lowering action of tetrandrine in streptozotocin-induced diabetic rats (STZ-diabetic rats) was investigated. The plasma glucose concentration was assessed by the glucose oxidase method. The enzyme-linked immunosorbent assay was used to determine the...

Study of a bisquaternary ammonium salt by atmospheric pressure photoionization mass spectrometry.

European journal of mass spectrometry (Chichester, England)

Giuliani A, Debois D, Laprévote O.
PMID: 16819110
Eur J Mass Spectrom (Chichester). 2006;12(3):189-97. doi: 10.1255/ejms.803.

A comprehensive atmospheric pressure photoionization (APPI) mass spectrometry investigation of hexamethonium bromide is reported. This bisquaternary ammonium salt is a model system for the investigation of multiply charged species and elucidation of ion formation processes. It has been used...

Simultaneous parasympathetic and sympathetic activation reveals altered autonomic control of heart rate, vascular tension, and epinephrine release in anesthetized hypertensive rats.

Frontiers in neurology

Berg T, Jensen J.
PMID: 22131984
Front Neurol. 2011 Nov 23;2:71. doi: 10.3389/fneur.2011.00071. eCollection 2011.

Sympathetic hyperactivity and parasympathetic insufficiency characterize blood pressure (BP) control in genetic hypertension. This shift is difficult to investigate in anesthetized rats. Here we present a pharmacological approach to simultaneously provoke sympathetic and parasympathetic transmitter release, and identify their...

Electrical activation of common bile duct nerves modulates sphincter of Oddi motility in the Australian possum.

HPB : the official journal of the International Hepato Pancreato Biliary Association

Sonoda Y, Takahata S, Jabar F, Schloithe AC, Grivell MA, Woods CM, Simula ME, Toouli J, Saccone GT.
PMID: 18333212
HPB (Oxford). 2005;7(4):303-12. doi: 10.1080/13651820510037639.

BACKGROUND: Sphincter of Oddi (SO) motility is regulated by extrinsic and intrinsic nerves. The existence of neural circuits between the SO and the proximal extrahepatic biliary tree has been reported, but they are poorly understood. Using electrical field stimulation...

Nicotine Inhibits Clostridium difficile Toxin A-Induced Colitis but Not Ileitis in Rats.

International journal of inflammation

Vigna SR.
PMID: 26881175
Int J Inflam. 2016;2016:4705065. doi: 10.1155/2016/4705065. Epub 2016 Jan 11.

Nicotine is protective in ulcerative colitis but not Crohn's disease of the small intestine, but little is known about the effects of nicotine on Clostridium difficile toxin A-induced enteritis. Isolated ileal or colonic segments in anesthetized rats were pretreated...

Regional difference in colonic motility response to electrical field stimulation in Guinea pig.

Journal of neurogastroenterology and motility

Kwak JM, Babygirija R, Gribovskaja-Rupp I, Takahashi T, Yamato S, Ludwig K.
PMID: 23667750
J Neurogastroenterol Motil. 2013 Apr;19(2):192-203. doi: 10.5056/jnm.2013.19.2.192. Epub 2013 Apr 16.

BACKGROUND/AIMS: In isolated guinea-pig colon, we investigated regional differences in peristalsis evoked by intrinsic electrical nerve stimulation.METHODS: Four colonic segments from mid and distal colon of Hartley guinea pigs, were mounted horizontally in an organ bath. Measurement of pellet...

Showing 25 to 36 of 73 entries