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Biomedical subjects

E Schmidt

Publications and source records attributed to E Schmidt.

At least 37 records · Page 2Linked to original sources
PubMed1978

[Determination of creatine kinase and CK-MB in heart failure (author's transl)].

Serum activity of creatine kinase and creatine kinase-MB have been investigated in 129 patients of various etiology in overt heart failure. Elevations in CK-MB were found in 19 patients, most frequently in patients with inflammatory heart disease. We found no correlation between CK-MB activity in serum and the severity of heart failure. CK-MB elevation in patients with chronic heart failure may be interpreted as a sign of progressive as well as regressive processes in the myocardium.

Angina Pectoris↗
PubMed1978

[In vitro evaluation of adsorbents used in haemoperfusion (author's transl)].

The properties of six adsorbents for Haemoperfusion were investigated in vitro: Amberlite XAD-2; Amberlite XAD-4; Haemocol; collodion coated charcoal; albumine-collodion encapsulated charcoal and activated carbon fibers. Carbromal and diazepam are most quickly removed from aqueous solutions by Amberlite XAD-2 and XAD-4. Of the charcoal containing materials, Haemocol eliminates most rapidly carbromal and diazepam; while activated carbon fibers remove phenobarbital faster. When heparinized blood is perfused, a remarkable reduction in platelet count is observed. The drop is most pronounced with Amberlite XAD-2 and XAD-4, but even when using charcoal preparations the platelet depletion can reach 10% of the original number over 5 hours. Haemolysis is most pronounced with Amberlite XAD-2, XAD-4 and Haemocol. As the efficiency of the adsorbents towards the various drugs differ and as their adverse effects also vary, the decision for a particular material will have to be made according to the individual case.

Adsorption↗
PubMed1978

[Perinatal influences on blood coagulation in healthy newborn infants with special reference to vitamin K administration].

In a prospective study the daily milk intake and weight gain were recorded in 169 healthy newborn infants during the first week of life. Factor II, V and VII activities were determined on the fourth day using a capillary blood method with hematocrit correction factor. Late onset of feeding showed a major influence on factor II and VII activities. In full-term newborns factor II was correlated to the birth weight. Mode of delivery, color of amniotic fluid, umbilical cord round the neck, Apgar score and postnatal vitamin K prophylaxis showed no significant influence. In infants with abnormal cardiotocographic findings higher levels of factor II were determined. This can be explained by stress-induced liver maturation.

Amniotic Fluid↗
PubMed1978

[Clinical experience in the use of modern inhalation anaesthetic enflurane (author's transl)].

A clinical investigation was carried out on the findings obtained during 120 anaesthetics conducted with enflurane. The anaesthetic properties and the effects of enflurane on respiration, heart and circulation, liver, kidney, haematopoesis, clotting mechanisms and carbohydrate metabolism were evaluated. The results are discussed and the data compared with those of halothane for better quantitative assessment.

Anesthesia, Inhalation↗
PubMed1978

Avulsion injury to the renal pedicle: successful autotransplantation after "bench surgery".

Avulsion injury to the renal pedicle from blunt trauma is a common injury in children. We report a patient who survived this injury with successful reimplantation of the kidney after bench surgery to trim the vessels and the ureter. The function of this kidney is somewhat impaired and shows posttraumatic scarring 19 months post-surgery. This appears to be the first report of such a patient in the literature.

Child↗
PubMed1978

Adrenergic and nonadrenergic activation of isolated human renal veins of normotensive and hypertensive patients.

In human renal venous strips from normotensive and hypertensive patients, adrenergic- and nonadrenergic-induced contractions were elicited. The maximal amplitude of contractions remained unchanged whatever the mode of activation. However, in the hypertensive group the forces generated reached only about 20% of those in the normotensive group. Furthermore, preparations from hypertensive patients showed a reduced sensitivity for noradrenaline: the ED50 was shifted from 0.13 +/- 0.03 to 0.66 +/- 0.19 microgram/ml (p less than 0.01). This reduced sensitivity is discussed in connection with the pathogenesis of hypertension.

Adolescent↗
PubMed1978

Modulation of the prostaglandin-induced intestinal motility in humans through the transmitters of the vegetative nervous system.

Research was done on the reciprocity between adrenergic and cholinergic stimulating or inhibiting pharmaceuticals and the prostaglandin-induced intestinal motility. By cholinergic activation, the amplitudes of the prostaglandin-dependent rhythmical contractions of human taenia coli were intensified. There was very little influence on the frequency of contractions, however. Simultaneous stimulation of adrenergic beta-receptors by increasing doses of adrenaline or noradrenaline caused the contraction amplitude and frequency to decrease continually until the contractions were completely eliminated. The cholinergic effect could be suppressed with atropine, the adrenergic-stimulated reaction was reversed by the blockage of beta-receptors. It was completely abolished by simultaneous addition of alpha- and beta-receptor-blocking drugs.

Acetylcholine↗
PubMed1978

Sex differences of plasma cholinesterase in the rat.

Plasma cholinesterase activity of adult female HAN-Wistar rats was found to be 5.5-fold higher than that of adult male rats kept under constant specified pathogen-free (SPF) conditions up to their 870th day of life.

Age Factors↗
PubMed1978

[1st experiences with the alpha-receptor blockader phentolamine in achalasia].

Through direct research on isolated human esophagus muscle systems in achalasia patients we found a deviation in the distribution pattern of the contractory alpha-receptors and dilatory beta-receptors in the region of the lower esophagus sphincter in favour of the alpha-receptors. Consequently, the motility of the lower esophagus sphincter was extremely impaired. On the basis of these results, we treated achalasia patients with the alpha receptor blocking drug phentolamine. All patients were soon symptom-free subjectively and improved objectively. Surgical intervention was avoidable in all cases.

Acetylcholine↗
PubMed1978

[Colon dynamics in ileus].

All forms of ileus have one thing in common, namely a disorder of the intestinal motility, which, with increasing distension of the intestinal wall, finally leads to paralysis of the intestine. With the increase in distension mechanical and functional colon changes take place which are discussed in this study. During peristalsis the strain on the wall is directed against the intra-luminal course of pressure. In spite of the increase of the internal pressure from 5 cm H2O to 100 cm H2O, the tension of the wall remains low or even decreases (roughly 500 dyn/mm2). In ileus patients, however, the strain on the intestinal wall increases enormously (about 100000 dyn/mm2). The maximum contraction capacity of the large intestine's muscle system (50,000 dyn/mm2) is high and similar to that of the skeletal muscles.

Colon↗
PubMed1978

[Impairment of adrenergic innervation in achalasia (author's transl)].

Length tension diagrams and diagrams of isometrically developed active tension were set up for normal and aganglionic cardia-circular muscles. The effects of acetylcholin, adrenergic stimulating and inhibiting drugs were examined. The physiological parameters in healthy cardia and the cardia muscle system in achalasia did not vary significantly from one another. The acetylcholin threshold was higher in aganglionic cardia, while the maximum effective dose in healthy and aganglionic cardia remained the same. In achalasia no sensitisation to acetylcholine was detectable. There was a marked impairment in the balance between adrenergic alpha- and beta-receptors, with the contraction-inducing alpha-receptors obviously predominating.

Acetylcholine↗
PubMed1978

The role of prostaglandines in peristalsis of the human colon.

Prostaglandines (PG) of the E and F series cause peristaltic activity in isolated longitudinal muscle strips of the human colon. As this phasic motor reaction can be varied by acetyl choline and adrenaline it was supposed, that prostaglandines contribute to peristalsis. The role of PG E and F in the human colon was studied by inhibiting the prostaglandine synthesis and by antagonizing the prostaglandine-effects. Indomethacin proved to be a suitable inhibitor. HR 546 was found a powerful antagonist. The effect of Pentagastrin and Cholecystokinin (CCK) on peristaltic activity were suppressed by Indomethacin and HR 546. The inhibition of peristalsis by Indomethacin and HR 546 was removed by high doses of PG E and F. On the basis of these results the role of PG for the motility of the gut is discussed.

Cholecystokinin↗