Microangiographic evaluation of the effects of heparin on progressive Masugi nephritis
Microangiographic evaluation of the effects of heparin on progressive Masugi nephritis. Unilateral progressive Masugi nephritis was produced in rabbits and studied by microangiography as well as light and immunofluorescence microscopy. The following five groups were studied: Group 1. Heparin was sta...
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Veröffentlicht in: | Kidney international 1978-04, Vol.13 (4), p.297-305 |
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Zusammenfassung: | Microangiographic evaluation of the effects of heparin on progressive Masugi nephritis. Unilateral progressive Masugi nephritis was produced in rabbits and studied by microangiography as well as light and immunofluorescence microscopy. The following five groups were studied: Group 1. Heparin was started simultaneously with nephrotoxic serum (NTS) and was given for one week. The animals were then sacrificed along with the untreated controls. Group 2. This was the same protocol as in group 1 but with three weeks' heparin. Group 3. Heparin was started one day after NTS and was given for three weeks. Group 4. Heparin was started one to two weeks after NTS and was given for three weeks. Group 5: late effect group. Heparin was started simultaneously with NTS, was given for four weeks, and the animals then were sacrificed 10 to 13 weeks later. Heparin dose was 5,000 U, s.c., per day in all treated groups. The number of glomeruli seen per unit of cortex by microangiography was significantly increased in the first through the third groups, as compared to the controls. Group 1 did not show this increase but there was some decrease of immunofluorescent fibrinogen. The late effect group (group 5) showed no modification by the treatment, suggesting that an initial improvement may have been negated by persistent immunologic insults after heparin withdrawal.
Evaluation microangiographique des effets de l'héparine sur la néphrite progressive de Masugi. Une néphrite unilatérale de Masugi a été produite chez des lapins et étudiée par microangiographie et par microscopie photonique et immunofluorescence. Les cinq groupes suivants ont été étudiés: 1) groupe simultané une semaine, l'héparine est commencée en même temps que le sérum néphrotoxique (NTS) et administrée pendant une semaine, 2) groupe simultané trois semaines, semblable à groupe 1, mais l'administration d'héparine dure trois semaines, 3) groupe un jour, l'héparine est commencée un jour après NTS, et administrée pendant trois semaines, 4) groupe une semaine, l'héparine est commencée une à deux semaines après NTS et administrée pendant trois semaines, 5) groupe des effets tardifs, l'héparine est commencée en même temps que NTS, donnée pendant 4 semaines, les animaux sont sacrifiés 10 à 13 semaines plus tard. La dose d'héparine est de 5,000 U, s.c., par jour dans tous les groupes traités. Le nombre de glomérules vus par unité de cortex en microangiographie est significativement augmenté dans le premier et le troisième |
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ISSN: | 0085-2538 1523-1755 |
DOI: | 10.1038/ki.1978.43 |