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Biomedical subjects

G Klinger

Publications and source records attributed to G Klinger.

At least 145 records · Page 8Linked to original sources

[Sequential scintigraphy in the investigation of changes in renal function during pregnancy (author's transl)].

Changes in renal function during pregnancy were studied by sequential scintigraphy in 16 women with normal kidneys. The examinations were carried out during the first and third trimesters. Time activity curves were obtained by a computer-assisted storage and analysis procedure, using a "region of interest" technique for renal parenchyma and renal pelvis. The study included topographic changes and the evaluation of 13 semi-quantitative parameters related to the renal parenchyma and of nine parameters related to the renal pelvis. The results were demonstrated graphically. The predominantly rightsided changes in renal function during the third trimester are discussed in relation to the relevant literature.

Adolescent↗

[Long-term effect of hormonal contraceptives on the behavior of serum lipids].

In order to check the long-term effects of oral contraceptives used in the GDR on certain serum-lipid-fractions, triglycerides, phospholipids, total and free cholesterol, and beta-lipoproteins were determined in four groups of 15 women each, taking the contraceptive preparations Ovosiston, Nonovlon, Gravistat, and Deposiston. Determinations were carried out before and following 3, 6, 12, and 18 month of drug administration. Statistically significant increases of triglycerides occurred under the combined preparations, of phospholipids under Ovosiston and Deposiston and of the beta-lipoproteins under Ovosiston and Gravistat. Total cholesterol showed a slight decrease under all preparations tested. At present the prognostic significance of these slight alterations of serum-lipid-concentrations cannot be estimated completely.

Adult↗

[Determination of pregnancy duration following terminated hormonal contraception].

The duration of pregnancy as assessed by the rule of Naegele was significant different between patients who became pregnant following termination of oral contraception and patients, who had not taken oral contraceptives. The intervall between stopping the pill and pregnancy was two month. We found a relatively high pregnancy rate in the first three month. The clinical significance is discussed.

Contraception↗

[Structure and ultrastructure of the endometrium with the depot contraceptive Depositon].

Endometrium was investigated histologically in 55 fertile women and by electron-microscope in 6 women under the influence of Deposiston (Jenapharm), a sequential contraceptive containing a long acting oestrogen--ethinyloestradiolsulfonate. The drug was administered orally in 1 mg doses on the 5., 12. and 19. day of each cycle. To achieve proper withdrawal bleeding a single oral dose of 10 mg norethisteronacetate was given on the 26. day of the cycle. Whereas Sequenz- Ovosiston (Jenapharm), a "classical" sequential preparation causes only insignificant variations from the physiological endometrium of fertile women, Deposiston developes irregularly proliferated patterns in more than 50% of the patients, due to differences of the elimination rate of ethinyloestradiolsulfonate. The degree of proliferation covers a wide range from a slightly proliferated endometrium to changes similar to hyperplasia of the endometrium with cystically enlarged glands. The secretory transformation takes place 2 or 3 days following the progestogen application. In 2 of the cases a secretory pattern could be found several days before the intake of the progestogen. This indicates break-through-ovulations.

Adult↗

[Comparison of 2 isotope-nephrography-evaluation methods in normal pregnancy].

The isotope nephrograms of a total of 31 renally healthy pregnant women of different thirds of pregnancy are semiquantitatively investigated by 2 methods. The results are demonstrated graphically. This comparison show that a more correct result can be made with the describing method by taking a greater number of parameters describing the excretory phase.

Female↗

[Determination and assessment of the estrogen proliferation dosage on the human endometrium].

The term, 'proliferation dosage' of an estrogen is defined differently in the gynecologic literature. In this article the authors were concerned critically with the methods of its determination. They came to the conclusion that under standardized conditions sufficiently sure and reproducible results can be received in postmenopausal women. 7 short acting and 3 long acting estrogens, some of which are clinically unknown substances, were examined using the following definition of proliferation dosage: 'Proliferation dosage is the amount of an estrogen which induces the signs of the late proliferation phase after being administered daily in the course of 10 to 14 days to postmenopausal women with atrophic endometrium.' In order to investigate the proliferating properties of 3 depot estrogens a modified test procedure was performed, derived from animal experiments' results and the planned clinical mode of application.

Age Factors↗

[Comparison of vaginal cytologic effects and blood elimination curves of different oestrogen drugs (author's transl)].

With different oral oestrogens it was studied, if relations are existing between pharmacokinetic and vaginal effect. By means of Karyopycnotic Index and Dynamic Oestrogenicity Index the cytological effect was quantified from a single dose of oestradiol valerianate, mestranol, ethinyloestradiol and 3 depot oestrogens proved on postmenopause women and compared with adequate pharmacocinetical investigations. The courses of oestrogen levels did not correlate with indices. Both methods of investigation do not compensate, but complete one another. Depotoestrogens and short acting oestrogens are distinguishable with regard to proliferation maxium and steepness of index decline.

Delayed-Action Preparations↗

[A comparison of isotope nephrographic examinations during pregnancy and hormonal contraception (author's transl)].

Renal function was investigated by isotope nephrography in 31 pregnant women with normal kidneys during various phases of pregnancy, and in 137 women on continuous contraceptive steroids (up to eight years). The semi-quantitative parameters of zum Winkel were used. It was found that the use of oral contraceptives did not lead to any change in renal function, whereas with advancing pregnancy there was distinct excretion delay on the isotope nephrogram. The results are discussed in the light of the relevant literature. Isotope nephrography appears to be a satisfactory screening test for evaluation of renal function on each side.

Contraceptives, Oral↗

[Urographic investigations on the effect of high dose progestagen therapy (author's transl)].

The relationship between high dose progestagen treatment and changes on the intravenous urogram were studied in 27 patients. For this purpose, six specific features in the urogram were examined. Our findings in the patients available to use indicate that there is no demonstrable dilatation of the renal pelves and ureters as a result of the administration of progestational substances alone. These results are discussed in relation to the relevant literature.

Dilatation, Pathologic↗

[Measurement of the oxyten partial pressure in the gingiva].

The partial pressure of oxygen (pO2) in the inflamed gingiva was measured in 24 patients before and after the application of Gingivox. The Gingivox treatment led to a significant increase in pO2 from 72.2 mm Hg to 94.6 mmHg. The arterial pO2 values of all patients, measured on the hyperaemic ear-lobe, lay within the range of normal values. The measurements were performed by means of the micro-Astrup equipment of the firm of Radiometer, Copenhagen.

Adolescent↗

[Infrared-spectroscopic studies of the carbonate apatite structure of dental hard tissues].

Samples of enamel, dentine and cementum were calcined at temperatures of 500 degrees C, 800 degrees C and 1000 degrees C. The infrared spectra recorded at these temperatures were evaluated quantitatively and qualitatively. With increasing temperature, the conversion of the primarily present carbonate apatite into hydroxyapatite increased. At 800 degrees C, a hydroxyapatite proportion of 83% was found. At that, the thermal treatment produced in the dentine an increase in the degree of crystallization from 62% to 100%.

Apatites↗

[The neurovegatative reaction-situation in climacteric. Modification of blood pressure regulation by estrogens].

48 women complaining of climacteric disorders were treated with an estrogen preparation for 1 year. Before an intervalls of 2 month during the treatment period studies of the Kupperman index, the vaginal karyopcnotic index and 3 neurovegatative (hemodynamic) tests were carried out: The orthostase-test according to Schellong, the cold-pressor-test according to Hines and Brown, the Pholedrin (Veritol-)test. During estrogen substitution the following alterations could be stated: A significant decrease of systolic and diastolic blood pressure values, a tendency of adjusting the systolic blood pressure values after standing up to the values in rest (Schellong-test I), a shortening of the interval needed to establish stable values of blood pressure and heart frequency, a tendency to reduce the increase of blood pressure in the cold pressor test, and a significant amplification of the increase of blood pressure and blood pressure amplitude in the Pholedrin test. These results are believed to indicate an alteration of vegetative reactivity in the parasympathicomimetic direction. Estrogens seem to exert a favourable influence on the mechanism of blood pressure regulation.

Adult↗