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H Renker

Publications and source records attributed to H Renker.

11 recordsLinked to original sources

[Effect of the liver protecting compound ES 914 on D-galactosamine induced experimental hepatitis in the rat].

The i.p. application of 400 mg/kg D-galactosamine to rats induces liver damage which histologically resembles hepatitis. As also shown in the present investigation, the transaminases SGOT and SGPT in the serum of the damaged animals strongly increase already within 24 h. In the present investigation part of the animals (rats) was treated with 15, 30, 60, 125, 250 and 500 mg/kg of a new hepatoprotective preparation alpha,alpha-dithio-dicapronic acid (ES 914, Lipexal Berna) 2 h before and 6 h after the application of the liver damaging substance D-galactosamine (dose 400 mg/kg). ES 914 was applied p.o. whereas D-galactosamine was injected i.p. The transaminases were estimated at the beginning of the experiments as well as 24 h after the injection of D-galactosamine. The statistical evaluation of the results showed an increasing protective effect depending on the increasing dosage of the preparation ES 914. The protective effect begins at the latest with the dose of 30 mg/kg ES 914 and with 60 mg/kg it is highly significant (p less than or equal to 0.001). With a dosage of 500 mg/kg ES 914 the increase of SGOT and SGPT values is virtually abolished.

Alanine Transaminase↗

[Electrocardiogramme in anaphylactic shock in humans (author's transl)].

Twenty clinical cases described in the literature were gathered, in which electrocardiographic tracings had been recorded. Electrocardiographic changes were found in all cases, such as sinus tachycardia (12 times), impaired electrical conduction (5 times), ventricular overexcitability (7 times), high P-wave (6 times), changes of the ST (10 times), and of the T-wave (18 times). The reason for these changes might be of a complex nature. Based on experimental investiagations mentioned in the discussion, it may be assumed that beside a direct effect on the myocardial cells, the following mechanisms could have influenced the electrical heart potentials: 1. a constriction of the coronary vessels, 2. a pulmonary vascular constriction, 3. an aggregation of thrombocytes, 4. a peripheral vascular dilatation, 5. a bronchiolar constriction.

Anaphylaxis↗

[Biological availability of potassium from a sustained release preparation].

The bioavailability of potassium from a sustained-release KC1 preparation has been compared in 10 healthy volunteers with that of a non-sustained-release KC1 coated tablet by means of urinary elimination data. From the 40 mEq KC1 additionally administered, 35.2 mEq (88%) and 35.5 mEq (88.8%) respectively were eliminated by the kidneys. On the evidence of this elimination data the sustained-release potassium preparation showed the same bioavailability as the non-sustained-release KC1 tablets. The retard form was excellently tolerated.

Biological Availability↗