Search PubMed⌕ Search

Biomedical subjects

D Jorke

Publications and source records attributed to D Jorke.

At least 37 records · Page 2Linked to original sources

[Epidemiology of hormone dependent malignant tumors--ovulation inhibitors and liver tumors].

Since the first descriptions of liver tumours associated with the intake of steroid contraceptives, the literature has presented an increasing number of case reports as well as epidemiological studies on the relationship between benign liver tumours and the utilization of these drugs. We report 11 benign cases and one malignant case of liver tumours in connection with the intake of these steroid preparations.

Adenoma↗

[Colchicine therapy of fibrosing liver diseases--report of a randomized double-blind study].

It is reported on results of a double blind study of colchicine therapy in fibrotic liver diseases over a period of three years. The study includes 74 probands; 37 of them had been treated after randomization for five days a week with 4 X 0,25 mg/d colchicine, 37 with placebo. 53 probands attained the 12th month of treatment, 43 of them 24th, 24 probands were in the study for 36 months. 3 diagnoses groups had been formed with regard to the histological grades of fibrosis: chronic hepatitis (without structural transformation); structural liver transformation/moderate liver cirrhosis; severe liver cirrhosis. In 38 cases the disease was caused by alcohol. 45 data had been studied (clinical results, paraclinical data concerning hepatological diagnostic and connective tissue metabolism and morphologic data). The biometric evaluation was carried out with the stage variant analysis by Friedman. Rebiopsies have been carried out in 40 probands after 1 year, in 4 probands after 2 years. 4 data (Serumalbumine, Gamma-GT, ALAT, KP) showed significant changes in the colchicine-group as well as in the placebo-group. In both therapy groups the morphologic supervisions of the fibrosis grades (rebiopsies) showed improvements, no changes, and deterioration about in the same frequency. In this study there was no effectiveness of colchicine on the course of fibrotic liver diseases to be stated. Concerning the contradictions in the recent literature and probable the insufficient colchicine dose, the authors recommend further studies on colchicine therapy in liver diseases with incipient i.e. reversible fibrosis.

Clinical Trials as Topic↗

[Testing of granulocyte function after gravity leukapheresis].

In a laboratory model granulocyte concentrates are produced by a procedure of gravitational leukopheresis. Hydroxyaethyl starch (HAS) served as an accelerator of sedimentation. In a parallel test arrangement a preparation of hydroxyaethyl taken from the industrial production of the GDR and a control preparation (Plasmasteril) was used. The regaining rate of this method amounts to about 70 per cent with 98 per cent of living cells in the concentrates. Vitality, performance of phagocytosis and ability of migration will only reduce to a slight degree during the first 4 hours, after that time, however, they will decrease significantly. There are no essential differences between the results of both preparations.

Adult↗

[Behavior of fibrinogen in diabetic patients in comparison with objective vascular measurements in the ocular fundus].

Objective measurements of vessels were performed in vivo in 10 patients affected with diabetes mellitus, the fibrinogen concentrations in the venous blood being determined simultaneously. Whereas the ensured correlations with fibrinogen concentration could be recognized from the diameter of arteries and veins and from the flow velocity, a linear correlation could be found to exist between the fibrinogen level and the volume flowing through a retinal artery. These findings prove that the very existence of a hyperfibrinogen anemia does not justify the assumption of the blood volume flow being decreased. In patients with diabetes mellitus the enhanced volume flowing through retinal arteries is rather connected with an increased fibrinogen level.

Adolescent↗

[Causes of gastrointestinal hemorrhages in chronic liver diseases].

356 patients with chronic liver diseases hospitalized in our clinic during the period from January 1, 1981, to December 12, 1983, were enrolled in a retrospective study. Of them 55 had been admitted for acute gastrointestinal hemorrhage. It appears that gastroscopy is the only method allowing to localize the origin of the bleeding with high certainty. Bleedings from varices (45%) and ulcers or erosions (22%) were seen most frequently. With regard to case history, clinic, paraclinic and prognosis, no significant differences were found between these various origins of the hemorrhages. Also it is remarkable that all bleedings occur with higher frequency in portal hypertension.

Adult↗

[Emergency endoscopy in chronic liver diseases].

Emergency endoscopy has to be regarded as a method of high diagnostic value. Based on the resulting therapeutic consequences and with allowance for the prerequisites and contraindications, emergency endoscopy in chronic liver diseases is to be considered a purposeful method. If endoscopic treatment possibilities in bleedings of the gastrointestinal tract continue to improve, the demonstration of an improvement in prognosis by emergency endoscopy seems to be merely a question of time.

Duodenal Ulcer↗

Pharmacokinetics and pharmacodynamic effects of furosemide in patients with liver cirrhosis.

Ten patients with compensated cirrhosis of the liver, 7 patients with portal decompensated cirrhosis of the liver and 10 patients with intact liver function were investigated. After intravenous injection of 40 mg furosemide elimination half-life, total and excretory clearance were not significantly different in the 3 groups investigated, but renal clearance was enhanced in the 2 cirrhosis groups and nonrenal clearance diminished in patients with decompensated cirrhosis of the liver. In those patients distributional volumes were significantly higher than in the control group. According to the increased urinary excretion of unchanged furosemide in patients with cirrhosis of the liver, the pharmacodynamic effect of the drug is enhanced: In the first 4-h-collecting period the excretion of water, chloride and sodium is significantly more increased than in the control group. After a period of 24 h this effect is still noticeable. The effect of furosemide on the excretion of potassium, creatinine and urea nitrogen is not significantly influenced by liver disease. Doubling the dose from 40 to 80 mg furosemide did not enhance the diuretic effect of the drug despite the doubled urinary excretion of unchanged furosemide.

Adult↗

[Incidence of posthepatic sequelae of acute viral hepatitis C].

There are not yet any ascertained results concerning the prognosis of the non-A/non-B hepatitis not depending on transfusion. In an identical source of infection meanwhile several working teams in the GDR by means of long-term observations for three years control groups of women able to propagate who were incubated by a hepatitis C-virus (of the non-A/non-B group of the hepatotropic viruses), so that first evidence on posthepatitic sequelae after hepatitis C is possible. Of 115 women who were treated with anti-D-globulin contaminated with C virus 57 women fell ill (= 49.5%). Of them 39 patients (3 68.4%) were cured after 3 years, 7 patients (6 12.3%) showed the signs of a residual hepatitis, 10 patients (3 17.5%) showed a chronically persisting and 1 patient (= 1.75%) a chronically active hepatitis. The results presented are compared to those of other working teams of our country.

Acute Disease↗

Contributions to the epidemiology of liver cirrhosis and chronic hepatitis.

The real prevalence of liver cirrhosis within the total population is unknown. Our own statistic evaluations of the mortality from liver cirrhosis in relation to the death rate and investigations in fatal accidents may suppose a real prevalence of nearly 1% in the population of the GDR. Investigations of trends have shown a rising rate of incidence and mortality from liver cirrhosis in the GDR, mainly caused by alcoholic cirrhosis. There are positive correlations with the increasing alcohol consumption and negative ones with hepatitis incidence. Liver cirrhoses are accompanied by a high percentage of secondary diseases especially by gastroenterologic, cardiologic and metabolic disorders. The increase of alcoholic cirrhoses in the age group 20-40 years from 35% 1970 to 63% 1978 with the peak for men between 30-50 years will be of economic importance. Main topics for the epidemiologic research of liver cirrhosis have been discussed.

Adolescent↗

[Malignant lymphomas: involvement and complications of the gastro-intestinal tract (author's transl)].

Among 100 patients with malignant lymphomas we found 7 with primary involvement of the gastrointestinal tract and 2 with secondary affection. 2 patients suffered from M. Hodgkin and 7 from non-Hodgkin-lymphoma. The absence of characteristic diagnostic data may lead to incorrect results, as shown. There false diagnoses cannot be excluded neither by endoscopy nor by histology of biopsy material. Every operation on the gastrointestinal tract under the suspicion of a malignant lymphoma should be improved used for the staging. A radio- and/or polychemotherapy has stage depending to follow. On the other hand these are followed by a high percentage of gastrointestinal complications (6% incomplete ileus) which require a gastrointestinal intensive care.

Adult↗

[Hairy cell leukemia. Light and microscopic and electron microscopic examinations (author's transl)].

Two cases of a typical hairy cell leukemia are presented. The light microscopic findings within the bone marrow, lymph nodes and spleen are documented. The hairy configuration of tumor cells can best be seen in semithin sections of white cells of the peripheral blood. Electron microscopically, the organelle composition of hairy cells (including the characteristic ribosome lamellae complex) is demonstrated. The significance of morphological observations for the diagnosis of hairy cell leukemia and the differential diagnosis of this tumor disease are discussed. From the electron microscopic observations of intercellular cross-banded structures it seems possible that the increase of intercellular material demonstrable light microscopically by silver impregnation is the consequence of synthesis of collagen type IV. The conclusion is drawn from findings in our cases and from reports in the literature that hairy cell leukemia is a clinically and structurally defined syndrome rather than a pathological entity.

Adult↗