Search PubMed⌕ Search

Biomedical subjects

G Hopf

Publications and source records attributed to G Hopf.

At least 19 recordsLinked to original sources
PubMed1990

Investigation into the combined effects of ethanol and cadmium on rat liver and kidneys.

To examine the combined hepatotoxic and nephrotoxic effects of cadmium and ethanol, rats maintained on an ethanol containing liquid diet (5% w/w) were given cadmium either acutely (3 x 1 mg/kg IP) or subacutely (about 14 mg/kg/day PO for 6 weeks). Parameters tested were cadmium, zinc and copper contents of blood and various organs, metallothionein (MT) contents, polysome profile of liver and kidneys, serum SDH and GPT levels and creatinine clearance. Ethanol reduced the hepatic MT contents without altering the polysome profile and the zinc and copper contents. Cadmium on the other hand raised the MT contents in liver and kidneys. This effect of cadmium predominated in the combined treatment. Morphological examination and functional tests (SDH, GPT, creatinine clearance) indicate that cadmium does not enhance the toxic effects of ethanol, and vice versa.

Alanine Transaminase↗
PubMed1988

[Spontaneous splenic rupture in infectious mononucleosis--organ-sparing operation using fibrin glue].

We present the case of a 16-year-old female patient with infectious mononucleosis complicated by spontaneous splenic rupture on the eighth day of the disease. This event is seldom; only 38 cases of true spontaneous rupture of the spleen in infectious mononucleosis could be found when the literature was reviewed. The diagnosis of splenic rupture in our case was made by ultrasound, just as the further postoperative follow-up. For the first time the splenic lesion was successfully managed by application of fibrin tissue adhesive.

Adolescent↗
PubMed1988

[Adverse effects of antihistaminics].

Of most antihistamines more or less pronounced sedative effects are known. In recently developed substances this effect is said to be less or absent. After some days of application the sedative effect may decrease, but it can be enhanced by simultaneous intake of psychotropic drugs, sedatives or alcohol. There are important interindividual differences. The Drug Commission of the German Medical Profession (AKdA) received reports concerning tiredness, somnolence (even with new antihistamines), CNS-stimulation, nervousness, insomnia and paroniria have also been observed. Furthermore cases of dyskinesia have been reported, which are already described in the literature after long term intake, as well as anticholinergic reactions. Despite of their use as antiallergic drugs, reports on hypersensitivity reactions due to antihistamines, up to anaphylactic reaction have been not infrequently received by the AKdA. In rare cases disturbances of blood cell formation have been reported besides observations of gastrointestinal disorders, increase of appetite and weight. Abuse of antihistamine containing drugs was reported mainly for combinations with psychotropic agents.

Histamine Antagonists↗
PubMed1985

Quantitative assessment of the polysome profile of the livers of mice treated with tetracycline or doxycycline.

The influence of tetracycline and doxycycline (10-100 micrograms/g i.v.) on the aggregational state of ribosomes from mouse liver was tested. Both drugs caused a disaggregation of the ribosomes as evidenced by a rise of the monosomes + disomes/polysomes ratio. Tetracycline was much more potent than doxycycline, the minimum effective doses for tetracycline being 10 micrograms/g i.v. as compared to 100 micrograms/g for doxycycline. The results show that tetracycline but not doxycycline at therapeutic dose range may interfere with the protein synthesis of the liver.

Animals↗
PubMed1985

Combined toxic effects of tetracycline and ethinyl estradiol on liver function of mice.

The combined effects of ethinyl estradiol (EE) (0.5 micrograms/g s.c. once daily for 4 days) and tetracycline (TC) or doxycycline (DC) (50 micrograms/g i.v.) on liver weight and water content, serum transaminases, alkaline phosphatase, urea, triglycerides, and cholesterol as parameters of various liver functions were investigated in mice. It became apparent that depending on the parameter tested synergistic and antagonistic effects may occur, e.g., synergistic effects were observed with the serum transaminases and liver cholesterol; antagonistic effects were seen with the serum urea and serum cholesterol.

Alanine Transaminase↗
PubMed1985

Effect of toxic doses of progesterone on hepatotoxic effects of tetracycline.

The combined effects of high doses of tetracycline and progesterone on parameters indicative for liver function (serum transaminases and urea, serum and liver triglycerides and cholesterol) have been studied in mice. Apart from disturbance of cholesterol metabolism tetracycline-induced liver dysfunction was not aggravated by progesterone.

Alanine Transaminase↗
PubMed1985

Comparative effects of tetracycline and doxycycline on liver function of young adult and old mice.

The effects of tetracycline and doxycycline (25 and 100 micrograms/g i.v.) on serum GOT, GPT, urea, bilirubin, cholesterol and triglycerides and on the hepatic cholesterol and triglyceride levels have been investigated comparatively in female mice of two age groups: young adult and old. Both tetracyclines caused increases in the serum transaminases and bilirubin and in the triglyceride and cholesterol contents of the liver that were less pronounced in old than in young adult mice. The reason for the age difference may be that doxycycline and tetracycline accumulated to a greater extent in the livers of the younger age group. Only the rise of the serum urea levels after tetracycline and doxycycline was greater in old mice than in the young adults.

Aging↗