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Biomedical subjects

B Wirth

Publications and source records attributed to B Wirth.

At least 73 records · Page 4Linked to original sources
PubMed1993

[Therapy of prostate abscess by employing pigtail drainage with transrectal ultrasound control].

Prostatic abscess is a rare but often severe disease. In most cases diagnosis is difficult. The best diagnostic tool is transrectal ultrasound, which depicts prostatic abscess very clearly. The therapy of choice to date is surgery, usually transurethral resection. At the Department of Urology of the University of Kiel we have employed another form of treatment, namely perineal drainage of the abscess with a pigtail tube under transrectal ultrasound guidance. This method is expected to be particularly advantageous in younger patients, for whom transurethral resection may cause problems. Five patients aged 24-71 years have been treated in this manner so far.

Abscess↗
PubMed1992

The gene for autosomal dominant polycystic kidney disease lies in a 750-kb CpG-rich region.

PKD1, the locus most commonly affected by mutations that produce autosomal dominant polycystic kidney disease (ADPKD), has previously been localized to chromosome 16p13.3. Since no cytogenetic abnormalities have been found in association with ADPKD, flanking genetic markers have been required to define an interval--the PKD1 region--that contains the PKD1 gene. In this report we demonstrate, through the construction of a long-range restriction map that links the flanking genetic markers GGG1 (D16S84) and 26.6PROX (D16S125), that the PKD1 gene lies within an extremely CpG-rich 750-kb segment of chromosome 16p13.3. Approximately 90% of this region has been cloned in three extensive cosmid/bacteriophage contigs. The cloned DNA is a valuable resource for identifying new closer flanking genetic markers and for isolating candidate genes from the region.

Chromosomes, Human, Pair 16↗
PubMed1992

Fine genetic localization of the gene for autosomal dominant polycystic kidney disease (PKD1) with respect to physically mapped markers.

PKD1, the gene for the chromosome 16-linked form of autosomal dominant polycystic kidney disease, has previously been genetically mapped to an interval bounded by the polymorphic loci Fr3-42/EKMDA2 distally and O327hb/O90a proximally. More recently, 26.6PROX was identified as the closest proximal flanking locus. We set out to refine the localization of PKD1 by identifying a series of single recombinant events between the flanking markers Fr3-42/EKMDA2 and O327hb/O90a and analyzing them with a new set of polymorphic loci that have been physically mapped within the PKD1 interval. We identified 11 such crossovers in eight families; 6 of these fell into the interval between GGG1 and 26.6PROX, a distance of less than 750 kb. Three of these crossovers placed PKD1 proximal to GGG1 and two crossovers placed PKD1 distal to 26.6PROX. Both of the latter also placed PKD1 telomeric to a locus 92.6SH1.0, which lies 200-250 kb distal to 26.6PROX. The sixth recombinant, however, placed the disease mutation proximal to the locus 92.6SH1.0. Several possible explanations for these observations are discussed. An intensive study to locate deletions, insertions, and other chromosomal rearrangements associated with PKD1 mutations failed to detect any such abnormalities. Thus we have defined, in genetic and physical terms, the segment of 16p13.3 where PKD1 resides and conclude that a gene-by-gene analysis of the region will be necessary to identify the mutation(s).

Chromosome Mapping↗
PubMed1990

Xanthogranulomatous pyelonephritis associated with renal cell carcinoma. Report on two cases and review of the literature.

Xanthogranulomatous pyelonephritis is a rare and particularly aggressive variant of chronic destructive pyelonephritis. Even when all modern diagnostic possibilities are exhausted, it is often not possible to distinguish xanthogranulomatous pyelonephritis from a renal cell carcinoma preoperatively. In clinical practice false diagnoses are therefore frequent. The coexistence of xanthogranulomatous pyelonephritis and renal cell carcinoma is extremely rare. We report 2 such cases. In 1 case surgery was performed on the kidney affected by xanthogranulomatous pyelonephritis using a renal sparing technique.

Aged↗
PubMed1989

Purification of uteroglobin using monospecific antibodies coupled to divinylsulphone-activated agarose.

As a model for the isolation of a labile or trace protein, the purification of uteroglobin (UGL) by immunoaffinity chromatography is described. Antibody was isolated from sheep antiserum by immunoprecipitation, and coupled to divinylsulphone-activated agarose (Mini Leak). For the immunoabsorption stage rabbit uterine mucosal scrapings were defatted and incubated directly with the immunosorbent. After washing and desorption, the UGL preparation contained relatively few high molecular weight impurities and these were removed by gel chromatography. Purification was monitored at each step by two-dimensional SDS polyacrylamide gel electrophoresis and immunoelectrophoresis. Furthermore, affinity-purified UGL was tritiated with N-succinimidyl[2,3-3H]propionate and assayed by fluorography. In order to determine absolute UGL concentrations a competitive ELISA was developed.

Animals↗
PubMed1989

Gene diagnosis in X-linked ichthyosis.

Three families segregating for X-linked ichthyosis (XLI) were analysed using the full-length STS cDNA probe and an anonymous polymorphic DNA sequence closely linked to the STS gene. In patients from two of the families, submicroscopic chromosomal deletions could be detected using both the STS and the GMGX9 (DXS237 locus) probes. Patients in the third family showed the same hybridization pattern as healthy males following molecular hybridization with either of the probes. The results of DNA analysis (indirect genotype diagnosis) agree well with those based on the arysulfatase C/beta-gal determination and prove the reliability of the biochemical test. Both methods are discussed for carrier detection, prenatal diagnosis, and genetic counseling.

Arylsulfatases↗
PubMed1989

Childhood manifestation of autosomal dominant polycystic kidney disease: no evidence for genetic heterogeneity.

Autosomal dominant polycystic kidney disease (ADPKD) usually becomes symptomatic between the third and fifth decades. We studied ten families segregating for ADPKD in which children were observed with typical manifestations of the disease at birth or in early childhood. In these families, linkage analysis was carried out with a cloned DNA sequence from the alpha-globin locus known to be closely linked to the disease gene in adult onset ADPKD. In the families studied here, close linkage (theta max = 0.09 at zmax = 2.32) was also observed between the marker and disease loci. These results provide no evidence for genetic heterogeneity of ADPKD in families with early and adult onset.

Child↗
PubMed1989

[Psychoanalysis and psychotherapy management in Austria].

In a study on the psychotherapeutic provision in Austria the participation of the psychoanalysts was also researched. All over Austria there is a lack of psychotherapists in numbers and regionally. Long term psychotherapy except for a few special institutions are free of charge for the client. In private practice however the patients have to pay heavily. Non-medical psychotherapists are not eligible for refunds by the health insurance system. Almost 4/5 of all psychotherapists belong to a non-medical profession (e.g. psychologists). Only about 1/5 are medical doctors who work as psychotherapists on the basis of a therapeutic training. Psychoanalysts in Austria primarily work as psychoanalytic oriented psychotherapists and to a lesser extent as psychoanalysts.

Austria↗
PubMed1989

[Xanthogranulomatous pyelonephritis with fatal outcome in a 2-month-old infant].

A 2-month-old infant died of xanthogranulomatous pyelonephritis. Preoperatively pyonephrosis was suspected, because the child presented with a number of inflammatory, septic symptoms. Nephrectomy was performed and histopathology showed the kidney to be affected by xanthogranulomatous pyelonephritis. Postoperatively the child developed persistent attacks of fever and bronchopneumonia that led to his death with signs of pulmonary insufficiency.

Humans↗
PubMed1988

Uteroglobin as progesterone-binding protein in the preimplantation uterine epithelium of the rabbit: histochemical studies.

[3H] progesterone was injected into the uterine lumen of rabbits toward the end of preimplantation period (162 h post coitum). Light-microscopic autoradiography showed accumulation of label in single cell groups of the uterine epithelium. Fluorographs of thin layer chromatograms of steroid extracts indicated the metabolization of progesterone in the uterine tissue. Incubation of uterine sections with fluorescein isothiocyanate-conjugated progesterone-rabbit serum albumin revealed binding sites for this reagent: 162 h post coitum, staining was also localized in single cell groups of the uterine epithelium. Pretreatment with a monospecific antiserum showed uteroglobin to be the binding protein.

Animals↗
PubMed1988

Linkage analysis in X-linked ichthyosis (steroid sulfatase deficiency).

Linkage analysis has been carried out in nine unrelated families segregating for X-linked ichthyosis (steroid sulfatase deficiency) using seven polymorphic DNA markers from the distal Xp. Close linkage was found between the disease locus and the loci DXS16, DXS89, and DXS143. In all families except one, Southern hybridization with the human steroid sulfatase cDNA and GMGX9 probes showed a deletion of corresponding loci in affected males. Three patients belonging to the same family had no evident deletion with either of the two above-mentioned probes. None of the other six DNA loci included in the linkage analysis were found to be deleted.

Arylsulfatases↗
PubMed1988

Two different genes for X-linked retinitis pigmentosa.

Linkage analysis was carried out in three large multigenerational kindreds with X-linked retinitis pigmentosa using DNA markers on Xp. About 10% recombination has been found between the retinitis pigmentosa locus (RP2) and the marker locus DXS7, assigned to band Xp11.3, which was reported earlier to be closely linked to RP2 in several independent families. In the kindreds described in this paper, however, RP2 shows close linkage and no recombination with the marker loci OTC and DXS148, both assigned to Xp21, indicating that, contrary to previous linkage studies, there is evidence of an RP locus distal to DXS7. This suggests that X-linked retinitis pigmentosa is genetically heterogeneous, i.e., caused by mutations at different loci.

Female↗
PubMed1988

Uteroglobin as a progesterone-binding protein in the preimplantation uterine epithelium of the rabbit: biochemical studies.

Progesterone binding was studied in the uterus of rabbits at two different hormonal stages; either after oestrogen priming or a short time before implantation of the blastocyst (162 h post coitum). Uterine cytosols were incubated with [3H]progesterone, or the labelled hormone was injected into the uterine lumen 1 h before killing the animals. Gel filtration, ion exchange chromatography, sucrose gradient centrifugation, isoelectric focusing and saturation analysis indicate that during the period prior to implantation, the uterine progesterone receptor disappears and progesterone binding is performed by uteroglobin. These findings support the hypothesis that the physiological role of uteroglobin in the reproductive process is connected with its hormone-binding ability.

Animals↗
PubMed1987

Autosomal recessive and dominant forms of polycystic kidney disease are not allelic.

Linkage analysis has been carried out in 11 kindreds with autosomal recessive polycystic kidney disease (ARPKD) using the genetic marker 3'HVR, closely linked (theta = 0.05) to the gene of the autosomal dominant type. Close linkage (theta less than or equal to 0.20) between the locus of the marker and that of ARPKD can be excluded. These data strongly suggest that the loci for the autosomal recessive and dominant forms of polycystic kidney disease are not allelic.

Alleles↗