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U Kaiser

Publications and source records attributed to U Kaiser.

63 records · Page 4Linked to original sources
PubMed1988

Lipid-dependent membrane enzymes. Purification to homogeneity and further characterization of diacylglycerol kinase from Escherichia coli.

1. Diacylglycerol kinase apoprotein was purified from membranes of Escherichia coli K12 by a six-step procedure that included HPLC. The proposed assignment of the enzyme to the dgkA gene [Lightner et al. (1983) J. Biol. Chem. 258, 10856-10861] could be supported by molecular mass determination (approximately 14 kDa), N-terminal sequencing (Met-Ala-Asn), cyanogen bromide fragmentation and amino acid analysis. As predicted, proline was absent. 2. The membrane-associated as well as the butan-1-ol-dissolved enzyme survived heating to 100 degrees C. 3. Alkylglycoside detergents were found to constitute an additional class of lipid activators. 4. The enzyme apoprotein in a non-activating substrate/detergent solution was capable of autocatalytic self-activation which was attributed to a novel feedback activation mechanism involving phosphatidic acid (diacylglycerol 3-phosphate).

Amino Acid Sequence↗
PubMed1988

Monocyte/macrophage-directed antibodies Ki-M3 and Ki-M7 detect renal-cell carcinomas.

Monoclonal antibodies (MAbs) Ki-M3 and Ki-M7, which detect cells of the human monocyte/macrophage lineages, were tested using immunohistochemistry on a series of benign and malignant human tumors (n = 43). Positive staining was detected in all renal-cell carcinomas (n = 19 positive for both Ki-M3 and Ki-M7), a few cases of breast carcinoma (n = 6 for Ki-M3; n = 2 for Ki-M7), in 1 case each of prostatic carcinoma (Ki-M3) and prostatic adenoma (Ki-M3), and in 1 case of endometriosis (Ki-M3). In normal human kidney Ki-M3 and Ki-M7 reacted with proximal tubules and parts of the distal tubules and with the loop of Henle. The Ki-M3 and Ki-M7 MAbs proved useful in detecting renal-cell carcinomas and in distinguishing these tumors and their metastases from morphologically similar neoplasms: in addition, our study further hints that renal cell carcinomas are derived from tubular epithelial cells.

Antibodies, Monoclonal↗
PubMed1988

Analysis of TSH receptors and microsomal antigen in different human thyroid tissue specimens.

Affinity labelling with a 125I-labelled photoactive derivative of TSH (HSAB-TSH) was used to analyse TSH receptor size in the following specimens of human thyroid tissue: (1) cold nodules; (2) autonomous nodules; (3) papillary carcinoma; (4) medullary carcinoma; (5) metastasis of papillary carcinoma to lymph node; (6) anaplastic carcinoma, and (7) Graves' thyroid. In addition, a sample of histologically normal thyroid tissue surrounding specimens 1-4 was analysed in each case. Thyroid microsomes were also prepared from the tissue samples, solubilized using 1% deoxycholate and labelled with 125I. The preparations were immunoprecipitated using microsomal autoantibodies and protein A and analysed by SDS-PAGE and autoradiography. These studies indicated that no differences in the characteristics of the TSH receptor or of microsomal antigen were observed in the tissue samples 1-3 and 7. Neither protein was detected in tissue specimens 4-6.

Autoantigens↗
PubMed1987

[Skin side effects of non-steroidal anti-inflammatory analgesics and so-called minor analgesics. Report from the Berne Comprehensive Hospital Monitor].

9118 of 19,653 inpatients of two internal medicine divisions were treated with analgesics and nonsteroidal antiinflammatory drugs including minor analgesics (NSAID). In the first part of the study all generalized skin reactions (gsr) considered to be probably or definitely due to a drug were evaluated clinically. In 23 out of 91 patients with a drug induced skin reaction, this was judged to be mainly related to an NSAID drug rather than any other drug (= 0.3% of patients exposed to an NSAID). The 26 reactions of the 23 patients were as follows: 15 maculo-papular exanthemas, 6 urticarias, 2 angioedema, 2 serum sickness syndromes and 1 erythema nodosum. In the second part we did statistical calculations only on the basis of the time/exposure relationship to ascertain the rate of gsr with chemotherapeutics and antibiotics (group B), with NSAID including minor analgesics (group A) and with all other drugs. 10.8% occurred with B, 1.8% with A without B and 0.9% without A and without B. The difference between 1.8% (A without B) and 0.9% (neither A nor B) is significant (p less than 0.05).

Analgesics↗
PubMed1982

[Chronic hemodialysis from the perspective of the dialysis team].

By means of a questionnaire the authors checked the views of dialysis teams on ethical and psycho-emotional questions, on on the adaptation of dialysis patients and on dialysis work itself. The results show that psycho-emotional considerations are of considerable importance in the contact with patients over long periods. The staff think about them but are often not able to arrive at a clear opinion. This indicates that psychological training of the staff is necessary in oder to facilitate and encourage the formation of clear points of view.

Adult↗
PubMed1977

[Experimental studies on the renal tolerance of cefuroxime (author's transl)].

The potential renal tolerance of cefuroxime was investigated in 80 female albino Wistar rats and compared with that of cephacetrile. The drugs were administered i.m. in different dosages (1000, 2000, 3000 and 5000 mg/kg/day; dosage interval: 12 h) over a period of five days. The excretion of tubular cells and urinary malic dehydrogenase was assessed before, during and after administration of the antibiotics. In addition, the concentration of serum urea was analysed and the renal histology was examined. The following toxic threshold doses were estimated: cefuroxime 5000 mg/kg/day, cephacetrile 3000 mg/kg/day. In comparison with other cephalosporines cefuroxime belongs to those antibiotics with which a high degree of renal tolerance is demonstrated.

Animals↗
PubMedDate not supplied

Acute and long-term effects of prostaglandin E1 assessed by clinical and microcirculatory parameters in critical limb ischemia: a pilot study.

We treated 14 patients suffering from critical limb ischemia (CLI) as defined by the Consensus Document, and in whom possibilities of surgical or percutaneous arterial reconstruction were excluded, by PGE1 60 micrograms i.v. daily during 3 weeks. Effects were evaluated by clinical, macrocirculatory and microcirculatory parameters during a follow-up of 1 year. After treatment with PGE1, we noted a significant reduction in analgesic use and in pain score. The average tcpO2 values on the forefoot in the supine and sitting positions, with or without inhalation of O2 through a face mask, showed a significant improvement after 3 weeks, as well as capillary stage. Laser Doppler flux did not change, but was significantly higher in diabetic patients than in nondiabetics with CLI. In 4 patients (28%) no improvement could be found after 3 weeks' treatment. Although in 6 patients the improvement lasted for up to 4 months, the legs eventually deteriorated. In 4 patients (28%) the legs were preserved after 1 year without further active therapy. No patient with initial tcpO2 values above 40 mm Hg in the supine and 100 mm Hg in the sitting positions during O2 inhalation lost a leg. Although other effects like local care could have influenced the outcome favorably, we noticed a beneficial albeit transient effect of PGE1 for the majority of our patients with CLI. TcpO2 measurements with O2 inhalation might be a valuable predictor of a positive long-term result.

Adult↗