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Biomedical subjects

H Bondevik

Publications and source records attributed to H Bondevik.

At least 19 recordsLinked to original sources

Extracorporeal surgery and autotransplantation for complicated renal calculous disease in 108 kidneys.

One hundred and eight kidneys in 97 patients with staghorn (72%) or multiple pyelocalyceal (28%) calculi were treated by extracorporeal surgery and autotransplantation, and followed up for 1-12 (mean 3) years. Twenty-seven patients had a solitary kidney, and 11 were operated on bilaterally. Sixty-nine % had a history of previous stone surgery, 74% had urinary tract infection and 30% renal dysfunction. Postoperative and late mortality rates were 3.1 and 2.1%, respectively. In addition, three kidneys were lost postoperatively and two later. Only one case of renal calculus recurrence was observed. Sixty-nine per cent of preoperatively infected patients were cured of infection, and 18% improved. Ninety-two per cent of patients with functioning autograft had preserved or improved renal function at follow-up. We find extracorporeal calculus removal a highly effective procedure with an acceptable risk.

Adolescent↗

Antibody response after single dose human alloimmunization.

Six individuals were immunized once, intradermally, with buffy coat cells from 100 ml of whole blood. The donor differed from the recipient for four HL-A antigens, two from the first and two from the second series. Two of the six recipients developed complement dependent cytotoxic antibodies, one of them against the immunizing donor only. Four of the six developed antibodies which were able to induce cell-mediated cytotoxicity, and which also inhibited the mixed lymphocyte culture interaction. Manily the responding cell in mixed lymphocyte culture was found to be inhibited. Antibodies with HL-A specificity seemed, at least partly, to be responsible for the observed effects.

Antibody Formation↗

Donor-specific cellular and humoral immunity after clinical kidney transplantation.

The cellular and humoral immune response against donor lymphocytes was studied in 10 patients transplanted with kidneys from living related donors. Nine of the grafts were functioning well at the time of the study. No direct (T) cell-mediated cytotoxicity against donor cells was demonstrated. Specific anti-donor antibodies were found in two recipients with well accepted grafts. Their antisera were active in antibody-induced cell-mediated cytotoxicity (AICC) and inhibited the mixed lymphocyte culture (MLC), but were negative in complement-dependent cytoxicity (CDC). Thus, no single immunological factor responsible for a favorable clinical course could be demonstrated. Neither complete T nor complete B cell tolerance against donor cells had developed, and a well tolerated graft could co-exist with antibodies directed against donor cells.

Antibody Formation↗

Cellular and humoral immunity after clinical renal transplantation.

Cellular and humoral responses against donor lymphocytes were studied in ten kidney-transplant patients, nine of whom had well functioning grafts. No(T)cell-mediated cytotoxicity against donor cells was demonstrated. Specific anti-donor antibodies were found in two recipients with well-accepted grafts. A single immunological factor responsible for a favourable clinical course was not demonstrated. Neither complete T nor B cell tolerance against donor cells had developed, and a well-tolerated graft could coexist with antibodies directed against donor cells.

Antibodies↗

Transformation of human lymphocytes: inhibition by homologous alpha globulin.

An alpha globulin fraction prepared from normal human plasma by column chromatography prevents homologous lymphocyte transformation and the stimulation of DNA, and also protein synthesis induced by phytohemagglutinin and specific antigens. These observations support the concept of a normal circulating immunosuppressant factor which prevents lymphoid cell proliferation.

Alpha-Globulins↗