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Biomedical subjects

S Berger

Publications and source records attributed to S Berger.

At least 199 records · Page 11Linked to original sources
PubMed1989

[Enoxacin concentration in seminal fluid, in prostate secretions and in prostatic adenoma tissue following oral administration or intravenous infusion].

In eleven volunteers and 39 patients undergoing transurethral resection of the prostate or bladder tumor, concentrations of enoxacin were measured in seminal fluid (volunteers), in prostatic fluid (volunteers, patients) and in prostatic adenoma tissue (patients) after oral (400 mg) administration and intravenous (428 mg) infusion (60 min) of enoxacin. Simultaneously 2.534 g of iothalamic acid was i.v. injected to identify possible urinary contamination. The concentrations of enoxacin in seminal fluid after 2-4 h and in prostatic tissue after about 1-4 h and 14-16 h exceeded plasma concentrations more than two-fold. The concentrations in prostatic fluid after 1-4 h were about half the plasma concentrations. Venous blood samples were taken after intravenous infusion at intervals of up to 24 h in a total of 14 patients. The mean plasma concentration of enoxacin decreased from its maximum of 6.9 mg/l at the end of infusion to 0.5 mg/l at 12 h after administration. A terminal half life of 6.65 h was calculated according to an open two-compartment model.

Administration, Oral↗
PubMed1989

Penetration of prophylactic antibiotics into peritoneal fluid.

This study evaluates the penetration of cephalosporins into the peritoneal fluid. Forty-six patients scheduled for abdominal surgery were randomized into three groups. On call to the operating room each patient was given a single 1 g dose of cefazolin, cefuroxime, or ceftazidime. Samples of the peritoneal fluid and blood were simultaneously obtained immediately after opening the peritoneal cavity. The mean serum cefazolin concentration was the highest. High peritoneal fluid levels of all three antibiotics were found; however, the antibacterial activity against common intestinal pathogens varied significantly. Cefazolin is the only study drug that possesses marginal in vitro activity against Streptococcus faecalis, a species generally considered resistent to cephalosporins. This study suggests that prophylactic second and third generation cephalosporins are not superior to cefazolin.

Abdomen↗
PubMed1989

Detection of tumours with nuclear magnetic resonance spectroscopy of plasma.

A systematic investigation of cancer detection by water-suppressed nuclear magnetic resonance (NMR) of plasma is reported. With additional suppression of lactate, a statistically significant difference between the linewidths of the methylene group signal of patients with untreated cancer (average linewidth 26.9 +/- 3.9 Hz) and normal controls (average linewidth 31.1 +/- 4.9 Hz) has been found. However, overlap was found between these two groups. It is shown that recognition of malignancy could be improved by consideration of the different relations of the linewidths on the content of serum triglycerides and the observation of a shoulder at the high field side of the methylene signal. Preliminary investigations on lipid fractions separated by ultracentrifugation (UC) indicate a connection of the appearance of the high field shoulder and the HDL lipoprotein.

Biomarkers, Tumor↗
PubMed1989

Congenital left atrial aneurysm in an infant.

Congenital left atrial aneurysm, without associated cardiac abnormalities, is a rare defect. We report the case of a large left atrial aneurysm filling almost the entire left hemothorax. This is the first report of this anomaly occurring in an infant less than 1 year of age.

Female↗
PubMed1989

Acute liver injury after protracted seizures in children.

Three children were observed to have extensive liver injury following protracted seizures. Two recovered with supportive care and one died from central nervous system complications. When first measured, the levels of aminotransferases were minimally elevated, but they increased to 250 to 8,000 times normal within 12 to 24 h after the seizure episode. They fell to near normal over the next 8 to 11 days in the survivors, and to one sixth of the peak level by 4 days in the patients who died. A percutaneous liver biopsy from one child demonstrated centrolobular necrosis consistent with severe ischemic injury. Common causes for liver dysfunction, including viral hepatitis, drug hepatitis, and Reye syndrome, were excluded on clinical, serologic, and histologic grounds. We reason that hepatic injury resulted from ischemia. We speculate that prior treatment with anticonvulsants, which are capable of inducing mixed-function oxidases in the liver, aggravated the ischemia-reperfusion injury by increasing the production of reactive oxygen intermediates and reducing cytoprotective mechanisms. Prevention of such injury should be directed toward control of seizures and early respiratory support when seizures occur, not restructuring medication regimens.

Anticonvulsants↗
PubMed1989

Comparison of dietary energy sources and obesity.

Possible relationship of changes in food and nutrition situation in the period 1961-1985 with obesity were briefly outlined. More evidence, incl. methodological improvements of studies is needed to make definitive confirmation on DES vs. obesity.

Adult↗
PubMed1988

Anticonvulsant-induced marrow suppression and immune thrombocytopenia.

Phenytoin and carbamazepine are rarely associated with serious hematologic side effects but can include impairment of either humoral or cell-mediated immunity. We describe a patient who developed severe granulocytopenia while taking phenytoin. The phenytoin was replaced by carbamazepine and the patient subsequently developed erythroid hypoplasia, neutropenia and persistent thrombocytopenia. In vitro studies demonstrated a phenytoin-dependent antigranulocyte antibody directly implicating phenytoin in the leukopenia. An extremely high titre of platelet-associated IgG was found which was independent of the presence of carbamazepine. Autoantibodies directed against the patient's red cells, granulocytes and lymphocytes were also demonstrated. In vitro marrow culture studies failed to detect cellular or humoral inhibitors and were suggestive of a stem cell defect. These studies indicate that anticonvulsant therapy can result in sustained humoral abnormalities as well as in nonimmune mediated marrow suppression.

Antigen-Antibody Complex↗