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Bls 1 frá 32 niðurstöður
Responses of isolated human internal anal sphincter to drugs and electrical field stimulation.
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The effects of drugs and electrical field stimulation on muscle strips from the human internal anal sphincter have been examined to provide information about the receptors and nerves that might be involved in the relaxation of the muscle in vivo. Acetylcholine and bethanechol usually relaxed muscle
The effects of drugs and electrical field stimulation on the human lower oesophageal sphincter.
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Acetylcholine, bethanechol, pentagastrin and dopamine contracted muscle strips cut transversely from the human lower oesophageal sphincter (LOS). In the presence of hyoscine the contraction to acetylcholine was changed to a relaxation; tolerance was observed to the effect of pentagastrin.
Mechanical responses of the isolated cervix of the day-22 pregnant rat to field stimulation.
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Field stimulation of isolated, spirally-cut cervix from day-22 pregnant rats produced contractions which could be inhibited by tetrodotoxin or hyoscine and potentiated by propranolol. The rat cervix would appear to receive both cholinergic and noradrenergic innervations whose transmitters activate
Pharmacological properties of mechanical responses of the rat oesophageal muscularis mucosae to vagal and field stimulation.
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Electrical stimulation applied to vagal oesophageal branches of the isolated curarized oesophagus, or via field electrodes to the isolated tunica muscularis mucosae (TMM), increased longitudinal tension and intraluminal pressure in a frequency-dependent manner. Differences between cervical and
Comparative study of hyoscine doses as antisialagogue for patients receiving ketofol sedation undergoing colonoscopy procedures.
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OBJECTIVE
To compare the effects of different regimens of hyoscine as antisialagogue in patients undergoing ketofol sedation for colonoscopy procedures.
METHODS
In this prospective double-blind randomized controlled trial 200 American Society of Anesthesiologists I-II aged 20-60-year-old undergoing
Corked up: clinical hyoscine poisoning with alkaloids of the native corkwood, Duboisia.
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Australian native trees of the genus Duboisia contain high concentrations of atropine-like alkaloids, especially hyoscine. Occupational exposure to the dried plant material results in two clinical syndromes: "cork-eye", and being "corked up". Plant abuse, as an intoxicant and hallucinogen, also
Effects of timepidium bromide, hyoscine-N-butylbromide and atropine on the isolated guinea pig gallbladder and sphincter of Oddi.
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Effects of timepidium bromide (TB), hyoscine-N-butylbromide (HB) and atropine (Atr) were studied on the isolated guinea pig gallbladder and sphincter of Oddi. In the isolated gallbladder, the contraction induced by methacholine was competitively antagonized with TB, HB and Atr: pA2 values for TB, HB
Intraganglionic laminar endings are mechano-transduction sites of vagal tension receptors in the guinea-pig stomach.
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1. Distension-sensitive vagal afferent fibres from the cardiac region of the guinea-pig stomach were recorded extracellularly, then filled with biotinamide, using an anterograde tracing technique. 2. Most of the stretch-sensitive units of the guinea-pig stomach (41 out of 47; number of animals N =
Anticholinergics improve fibreoptic intubating conditions during general anaesthesia.
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OBJECTIVE
To determine if anticholinergic agents improve fibreoptic intubating conditions and to compare the efficacy and side effects of glycopyrrolate and hyoscine.
METHODS
Eighty ASA I adults undergoing elective wisdom tooth extraction were randomly allocated to receive 0.4 mg hyoscine
Adenosine deaminase antagonizes inhibitory responses to adenosine and non-adrenergic, non-cholinergic inhibitory nerve stimulation in isolated preparations of guinea-pig trachea.
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In guinea-pig isolated tracheal tube preparations treated with dipyridamole, adenosine deaminase antagonized inhibitory responses to adenosine and non-adrenergic, non-cholinergic nerve stimulation. Inhibitory responses to vasoactive intestinal peptide (VIP) were unaffected and hyoscine-sensitive
Indirect evidence for the inhibition of enteric substance P neurones by opiate agonists but not by capsaicin.
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There is good evidence indicating that hyoscine-resistant contractions of the guinea-pig ileum evoked by stimulation of the intramural nerves are mediated by substance P (SP). In the present experiments, non-cholinergic neurogenic ileum contractions to field stimulation (100 imp., 5-50 Hz) were
Capsaicin-sensitive non-cholinergic excitatory innervation of the guinea-pig tracheobronchial smooth muscle.
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Field stimulation of the isolated main bronchi of the guinea-pig results in a rapid contraction followed by a sustained contractile response. Tetrodotoxin abolished these effects. The first phase was strongly inhibited by hyoscine, indicating that it was mediated mainly by excitation of cholinergic
Unexpected anterograde amnesia associated with Buscopan used as a predmedication for endocscopy.
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It has been known that peripheral adverse event is caused by peripheral antimuscarinic action, from hyoscine butylbromide (Buscopan; Boehringer Ingelheim, Germany) used as a premedication for endoscopy. However, symptoms or signs associated with the central nervous system are rarely reported in the
Depression by morphine of the excitability of intrinsic inhibitory neurons in the guinea-pig colon.
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The mechanical responses to morphine were examined in isolated preparations of longitudinal and circular muscle of the guinea-pig colon. In the longitudinal coat, morphine induced a relaxation which was prevented by naloxone, hyoscine and tetrodotoxin. Conversely, in the circular coat morphine
Characteristics of the internal anal sphincter and the rectum of the vervet monkey.
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1. The physiology of the internal anal sphincter of the vervet monkey was investigated. 2. Strips of sphincter in vitro contracted to noradrenaline and adrenaline; adrenoceptors were mainly alpha-excitatory. Strips of rectal circular muscle relaxed to noradrenaline and contained both inhibitory
Heillasta gagnagrunnur lækningajurtanna sem studdur er af vísindum
- Virkar á 55 tungumálum
- Jurtalækningar studdir af vísindum
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- Skipuleggðu áhugamál þitt og vertu vakandi með fréttarannsóknum, klínískum rannsóknum og einkaleyfum
Sláðu inn einkenni eða sjúkdóm og lestu um jurtir sem gætu hjálpað, sláðu jurt og sjáðu sjúkdóma og einkenni sem hún er notuð við.
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