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Query: UMLS:C0016382 (flushing)
 6,387 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The effect of evacuation of atmospheric air during transportation on recovery of anaerobic bacteria was investigated. Evacuation of atmospheric air from glass tubes by flushing with pure carbon dioxide lowered the content of oxygen to about 0.4 per cent. Three B. fragilis strains and one strain of Fusobacterium mortiferum and of Peptostreptococcus anaerobius were investigated. Bacterial recovery was determined one hour and 24 hours after evacuation of atmospheric air by pure carbon dioxide and pure nitrogen, was compared to bacterial recovery from samples transported with free access to atmospheric air. Evacuation by pure carbon dioxide significantly improved the recovery of one B. fragilis strain after 24 hours of transportation and significantly impaired the recovery of Peptostreptococcus anaerobius after one hour of transportation, while evacuation by pure nitrogen significantly improved the recovery of Peptostreptococcus anaerobius after 24 hours of transportation. In all other cases, however, no statistically significant effect on bacterial recovery was found.
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PMID:Survival of anaerobic bacteria during transportation. 1. Experimental investigations on the effect of evacuation of atmospheric air by flushing with carbon dioxide and nitrogen. 0 89

A technique is described for the daily intravenous injection over 16 weeks in the rabbit. The system consists of a Teflon cannula passed down the external jugular vein with the tip in the superior vena cava. The cannula is joined at the point of entry to the jugular vein to a length of silicon rubber tubing, which is then passed subcutaneously to the forehead. The silicon tubing is terminated on a Luer needle hub, which is held in a simple Perspex plate secured subcutaneously between the rabbit's ears. The Luer hub is covered with a replaceable rubber cap through which injections may be made. With this system cannulae were maintained patent for 16 weeks by flushing once a day with Hanks' balanced salt solution, pH 7-4.
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PMID:A simple technique for the frequent intravenous infusion of fluid without heparin into the rabbit. 1 62

Among nearly 2000 patients of a traumatological ward 82 patients were treated with chemical injury during 6 years. On the basis of their experiences the tissue damaging effect of the chemical substances as well as the methods of treatment are discussed by the authors. Dermoplastic operations have been performed in 28 injured patients. Two patients died--the immediate cause of death was in both patients pneumonia developed as complication of important skin defect. As first-aid abundant sponge-bath and flushing are recommended by the authors--the neutralizing drugs play a secondary role. In the case of deep injuries primary necrectomy is recommended, firstly in colliquation necrosis, as well as in the cases, in which the absorption of the poisonous substance is to be feared of.
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PMID:[Surgical treatment of chemical injuries]. 1 16

Cardiorespiratory reflex responses to laryngeal chemoreceptor stimulation were studied in 62 piglets of both sexes varying in age from 1 to 79 days. The distal trachea was cannulated to provide a free airway and the proximal end used to introduce fluids into the laryngeal area. Introduction of either water or milk produced apnea, bradycardia, and hypertension. Swab application of test fluids to the laryngeal epithelium produced similar responses. The reflex could be interrupted by flushing the laryngeal region with saline, by cutting the superior laryngeal nerves (SLN) or by anesthetizing the laryngeal epithelium with lidocaine. Electrical stimulation of SLN elicited identical responses. Respiratory inhibition by the reflex was enhanced following central depression with chloralose and overridden by administration of the respiratory stimulant, aminophylline. The relative potency of the laryngeal reflex was estimated to be equivalent to about 40% of the dose of chloralose which produced permanent respiratory arrest. It is concluded that in circumstances where respiratory drive is reduced the laryngeal inhibitory reflex is capable of caused persistent apnea and asphyxial death in the young piglet.
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PMID:Properties of the laryngeal chemoreflex in neonatal piglets. 1 25

The reddening of the ears of guinea pigs following the administration of nicotinic acid and its derivatives is regarded as an animal experiment for the human flush-reaction. In agreement with the observations in humans we found that the reddening effects decreased after repeated administration of xantinol nicotinate (Complamin). The results demonstrate that the reddening of the ears of guinea pigs--and presumably flushing in humans as well--is a complex event. The liberation of prostaglandins, histamine and serotonin, and first of all, cholinergic reactions, seem to be involved.
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PMID:[Elucidation of the mechanism of nicotinic acid flush in the animal experiment (author's transl)]. 2 99

In six healthy volunteers the interdigestive motor activity and the secretory pattern were recorded in the duodenum by open tip catheters and intraluminal titration, respectively. The duodenal part of the interdigestive myoelectric complex (IDMEC) was regularly associated with a significantly increased alkali load to the duodenum amounting to 2.4 +/- 0.4 mmol per IDMEC. Thus, the intestinal "housekeeper" function of the IDMEC may be brought about by a coupled action of propagated motility and flushing secretion.
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PMID:Increased duodenal alkali load associated with the interdigestive myoelectric complex. 3 88

A radically new technique of male injectable nonocclusive chemical contraception is presented which is claimed to be reversible, not conducive to immunological reactions, nonsurgical, and nonocclusive. The method basically involves infusion of a chemical agent into the vas deferens, but its basic principle of operation differs significantly from standard chemical techniques. A novel polymer was fabricated which when injected into the vas deferens does not affect the lumen and lowers pH sufficiently to kill any spermatozoa passing through the vas. In addition, the polymer does not degrade in the process but can be removed by flushing to reverse the spermicidal effects of its insertion. In vitro studies showed the pH to be as low as 3.5. In addition, in vitro spermicidal action of the polymer was tested, and each time the polymerized sperm were unable to uptake dye, confirming their death. Fertility trials, utilizing albino rats, proved the efficacy of this polymer in vivo: rats were treated with either normal saline solvent only (dimethyl sulfoxide), or dissolved polymer for 180 days, and at the conclusion of the trial, the fertility of saline-treated rats had 0% fertility. This technique has the potential for easy reversibility while not affecting the patency of vas deferens.
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PMID:Injectable non-occlusive chemical contraception in the male-I. 4 11

Phosphorus nuclear magnetic resonance (31P NMR) can be used as a non-destructive method for the simultaneous observation of the major phosphate-containing metabolites (ATP, ADP, nucleotide monophosphate, Pi, sugar phosphate) and intracellular pH in isolated rat kidney. The time course of changes in these metabolites and in cellular pH in the ischaemic kidney are examined at two temperatures and in the presence of different flushing media. ATP is rapidly depleted while the pH change is slower and shows biphasic behaviour. Pi production and total nucleotide (ATP and ADP) depletion also occur on the same time-scale as the tissue acidification. The relation of these observations to tissue viability is discussed and the possibility of extending the measurements to human organs is considered.
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PMID:Non-destructive measurement of metabolites and tissue pH in the kidney by 31P nuclear magnetic resonance. 4 1

The effect of lowering raised plasma-free-fatty acids (F.F.A.) on the incidence of serious ventricular arrhythmias after myocardial infarction was assessed by a double-blind trial in eighty-one patients. A nicotinic-acid analogue (N.A.A.) with very slight haemodynamic effects was given within 12 hours of the onset of myocardial infarction to lower plasma-F.F.A. When treatment with N.A.A. was started within 5 hours of the onset of symptoms, the numbers of patients with ventricular symptoms, the numbers of patients with ventricular tachycardia were significantly reduced, provided elevated plasma-F.F.A. levels were rapidly lowered and maintained in the normal range throughout the treatment period. The incidence of R-on-apex T ventricular premature beats and beats in which the ectopic R wave interrupted the apex of the T wave of a previous ventricular premature beat was also reduced in patients receiving N.A.A within 5 hours of the onset of symptoms. Plasma-total-catecholamines and serum-creatine-kinase levels were similar in the N.A.A.-treated and placebo groups. N.A.A. rarely caused skin flushing, but vomiting occurred in some patients after many hours of treatment. These findings suggest that treatment directed towards stabilsing the matabolism of the ischaemic myocardium can be of therapeutic value and lead to fewer serious ventricular arrhythmias.
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PMID:Control of ventricular arrhythmias during myocardial infarction by antilipolytic treatment using a nicotinic-acid analogue. 4 51

A case of acute Mast-cell leukemia was studied. A 39 years old female presenting with a brief history of abdominal pain and attacks of flushing; peripheral blood and bone marrow contained up to 60% of poorly differentiated blasts with clumping of deep purpule granules. Peroxydase reaction stains were negative, chloroacetate esterase were strongly positive. Toluidine blue revealed metachromatic stain. Histamine content of the cells was highly greater than normal but nos heparinoid activity could be demonstrated. These abnormal mast-cells have been investigated with the electron microscope; only the dense particular type of granule substructure was found, without any lamellae component. The cells were temptatively classified as "immature" mast-cell. The disease was interpretated as an acute leukemic variety of systemic mastocytosis.
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PMID:[Acute mast-cell leukemia. Cytochemical and ultrastructural study, about a particular case (author's transl)]. 5


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