U. Krause
University of Mainz
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Featured researches published by U. Krause.
Nephron | 1984
P.K. Wagner; U. Krause; T. Schärfe; J. Beyer; M. Rothmund
The effect of cimetidine on basal and histamine-induced PTH secretion was tested using single cell suspensions obtained from (a) primary parathyroid adenomas, and (b) secondary hyperplastic parathyroid tissue from patients undergoing chronic hemodialysis. The histamine-stimulated hormone secretion was dose-dependent. Cimetidine suppressed both basal and histamine-stimulated hormone secretion. Within the therapeutic range the suppressive effect was identical for adenoma and hyperplasia. Both adenomata and secondary hyperplastic glands showed a histamine H2-receptor-related response. The role of histamine in the pathogenesis of hyperparathyroidism is not quite clear so that the possible benefits of cimetidine for medical treatment of primary and secondary hyperparathyroidism will have to be proven by careful clinical trials.
Research in Experimental Medicine | 1982
Peter K. Wagner; U. Krause; M. Rothmund
SummaryThe effects of calcium and magnesium on parathyroid hormone release from eight adenomas causing primary hyperparathyroidism and six hyperplastic glands causing hypercalcemic secondary hyperparathyroidism were investigated in vitro using single cell suspensions from the respective tissue. We observed suppression of parathyroid hormone release with increasing concentrations of either cation. The quantitative hormone secretions of both adenomatous and hyperplastic glands was identical.The effects of calcium and magnesium on parathyroid hormone release from eight adenomas causing primary hyperparathyroidism and six hyperplastic glands causing hypercalcemic secondary hyperparathyroidism were investigated in vitro using single cell suspensions from the respective tissue. We observed suppression of parathyroid hormone release with increasing concentrations of either cation. The quantitative hormone secretions of both adenomatous and hyperplastic glands was identical.
Langenbecks Archiv f�r Chirurgie | 1980
Peter K. Wagner; M. Rothmund; H. Gabbert; U. Krause
SummaryCryopreservation of human parathyroid tissue achieved significance through the introduction of autologous transplantation in parathyroid surgery. The technique of cryopreservation and thawing is described. The functional integrity of frozen tissue was examined by checking its calcium-sensitivity which was compared with that of fresh tissue. This demonstrated a similar secretion pattern. Examination of the frozen tissue under the light and electronmicroscope showed almost all of the cells to be preserved. The indication for cryopreservation is given at total parathyroidectomy and autologous transplantation at primary and secondary hyperplasia, as well as at reintervention in primary hyperparathyroidism or in total thyroidectomy where it is not certain that living parathyroid tissue was left in situ.ZusammenfassungDie Kältekonservierung von menschlichem Epithelkörperchengewebe erlangte Bedeutung durch das Einführen der autologen Transplantation in die Nebenschilddrüsenchirurgie. Die Technik der Kryopräservation und des Auftauens wird dargestellt. Zur Überprüfung der funktionellen Integrität des kryopräservierten Nebenschilddrüsengewebes wurde dessen Calciumsensitivität untersucht und mit der von frischem Gewebe verglichen. Dabei zeigte sich ein gleichartiges Sekretionsverhalten. Bei der licht- und elektronenmikroskopischen Untersuchung des kältekonservierten Gewebes war der überwiegende Teil der Zellen erhalten. Die Indikation zur Kryopräservation ist gegeben:, bei der totalen Parathyreoidektomie und autologen Transplantation, bei primärer und sekundärer Hyperplasie, ferner bei der Reintervention bei primärem Hyperparathyreoidismus oder bei der totalen Thyreoidektomie, wenn vitales Nebenschilddrüsengewebe nicht sicher in situ verblieben ist.Cryopreservation of human parathyroid tissue achieved significance through the introduction of autologous transplantation in parathyroid surgery. The technique of cryopreservation and thawing is described. The functional integrity of frozen tissue was examined by checking its calcium-sensitivity which was compared with that of fresh tissue. This demonstrated a similar secretion pattern. Examination of the frozen tissue under the light and electronmicroscope showed almost all of the cells to be preserved. The indication for cryopreservation is given at total parathyroidectomy and autologous transplantation at primary and secondary hyperplasia, as well as at reintervention in primary hyperparathyroidism or in total thyroidectomy where it is not certain that living parathyroid tissue was left in situ.
Research in Experimental Medicine | 1982
Peter K. Wagner; U. Krause; M. Rothmund
SummaryThe effects of calcium and magnesium on parathyroid hormone release from eight adenomas causing primary hyperparathyroidism and six hyperplastic glands causing hypercalcemic secondary hyperparathyroidism were investigated in vitro using single cell suspensions from the respective tissue. We observed suppression of parathyroid hormone release with increasing concentrations of either cation. The quantitative hormone secretions of both adenomatous and hyperplastic glands was identical.The effects of calcium and magnesium on parathyroid hormone release from eight adenomas causing primary hyperparathyroidism and six hyperplastic glands causing hypercalcemic secondary hyperparathyroidism were investigated in vitro using single cell suspensions from the respective tissue. We observed suppression of parathyroid hormone release with increasing concentrations of either cation. The quantitative hormone secretions of both adenomatous and hyperplastic glands was identical.
Archive | 1983
P. K. Wagner; U. Krause; M. Rothmund
Cimetidin gewinnt in den letzten Jahren in der konservativen Behandlung des primaren und sekundaren Hyperparathyreoidismus (p, sHPT) ein zunehmendes Interesse, nachdem bei beiden Krankheitsbildern in mehreren klinischen Studien ein Abfall der Parathormonkonzentration (PTH) im peripheren Blut nachgewiesen wurde (2, 4). Obwohl auch gegenteilige klinische Berichte vorliegen (3), ergaben alle bisherigen in vitro Untersuchungen mit diesem H2-Receptorantagonisten an Nebenschilddrusenadenomgewebe gleichlautend eine Hemmung der basalen und histaminstimulierten PTH-Freisetzung (1, 6). Entsprechende Befunde konnten auch mit dem Histamin-H1-Receptor-Antagonisten Promethazin erhoben werden, so das Nebenschilddrusenadenome offensichtlich uber H1- und H2-Receptoren verfugen.
Langenbeck's Archives of Surgery | 1986
U. Krause; F. W. Eigler; G. Paar; K. M. Stürmer
SummaryIn the last 7 years we treated six patients with Munchhausens syndrome who had selfinduced disturbances of postoperative wound healing. Three presented with fistulas of the abdominal wall, one of the thoracic wall and one of the buttock. One patient produced subcutaneous emphysema of the tigh, two died: one from chronic empyema of the pleura, another from suicide. Most of the patients could be described as having borderline personalities. The most important point for the surgeon is the need for early diagnosis and consultation of a psychiatrist, although psychiatric treatment is also difficult.ZusammenfassungWir haben in den letzten 7 Jahren 6 Patienten mit artefiziellen Wundheilungsstörungen postoperativ behandelt: Dreimal handelte es sich um Bauchdeckenfisteln, einmal um Thoraxwandund einmal um gluteale Fisteln. Ein Patient induzierte ein s. c. Luftemphysem am Oberschenkel (Munchhausen-Syndrom). 2 Patienten sind verstorben: Eine Patientin an chronischem Pleuraempyem, ein Patient durch Suicid. Psychopathologisch handelte es sich überwiegend um BorderlinePersönlichkeiten. Der wichtigste Faktor für den Chirurgen ist die frühzeitige Diagnose und Einleitung einer psychiatrischen Behandlung.
Langenbeck's Archives of Surgery | 1984
U. Krause; Hans D. Jakubowski; R. Windeck; F. W. Eigler
SummaryFrom February through September 1983, before general Cyclosporin A (Cy-A) treatment, we changed 12 patients from conventional immunosuppression (including ATG) to Cy-A in the first 30 days after cadaver-donor kidney transplantation, due to rejection. This regimen was effective in 11 cases, the median follow-up now being 11 months. We conclude that early conversion therapy (including ATG) is as effective as primary Cy-A treatment. At present, we start with conventional immunosuppression in cases of long cold ischemia time (> 30 h) because of Cy-A nephrotoxicity in ATN kidneys, and change over to Cy-A after the graft is sufficiently functioning.ZusammenfassungVon Februar bis September 83 - vor genereller Cy-A-Therapie - haben wir 12 Patienten in den ersten 30 Tagen nach Leichennierentransplantation von konventioneller Immunsuppression (einschl. ATG) umgestellt auf CyA wegen Abstoßungskrise. Die Therapie war in 11 Fällen erfolgreich bei einer Nachbeobachtungszeit von jetzt 11 Monaten. Wir schließen, daß die frühe Konversion so effektiv zu sein scheint wie primäre CyA-Therapie. Zur Zeit stellen wir die Indikation für initial konventionelle Therapie (einschl. ATG) bei langer Kaltischämiezeit (> 30 h), wegen der CyA-Nephrotoxizität und geben CyA erst nach Funktionsaufnahme des Organs.
Research in Experimental Medicine | 1989
G. Kahaly; J. P. Yuan; U. Krause; K. Hülbusch; J. Beyer
Langenbeck's Archives of Surgery | 1986
U. Krause; F. W. Eigler; Gerhard Paar; K. M. St rmer
Langenbeck's Archives of Surgery | 1984
U. Krause; Hans D. Jakubowski; R. A. Windeck; F. W. Eigler