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Biomedical subjects

L Sandberg

Publications and source records attributed to L Sandberg.

At least 55 records · Page 3Linked to original sources
PubMed1981

Blood transfusion in cadaveric renal transplantation-a prospective study.

177 consecutive primary cadaveric renal transplantations were performed during April 1977-October 1980 in our centre. The graft survival in 58 recipients who were transfused with two units of blood for "immunological" reasons was the same as for 107 patients transfused with 1-96 units for medical reasons prior to transplantations. Twelve non-transfused patients had a significantly lower graft survival than the transfused ones (p less than 0.01). No additional beneficial effect of transfusions exceeding two in number was found. When three or more units of blood were given peroperatively to earlier transfused recipients, a lower early graft loss due to rejection was demonstrated than when two or less units were administered. The risk of sensitization of the recipient after two units of leucocyte poor blood was low.

Actuarial Analysis↗
PubMed1981

Planned third-party transfusions prior to first transplantations from liver related donors.

Seventy-nine first living related donor transplants performed in Gothenburg, Sweden, from April 1977 to October 1980 were studied. The patient survival was 97% at 30 months. The graft survival in HLA-identical sibling combination was 100%. Thirty previously non-transfused recipients of one-haplotype mismatched grafts were given 2 units of third-party blood as preparation for transplantation. The graft survival was 92% at 30 months. No patients became sensitized against their donor. Thirty-one recipients of haplotype-mismatched grafts, previously transfused for medical reasons, had a graft survival of 82% at 30 months. The deliberate third-party blood transfusion protocol has been rewarding and resulted in a highly satisfactory graft survival.

Antilymphocyte Serum↗
PubMed1980

Mediation of macrophage collagenase production by 3'-5' cyclic adenosine monophosphate.

The production of collagenase by lipopolysaccharide-(LPS) activated guinea pig macrophages is mediated by prostaglandins (PG) of the E series. After stimulation of guinea pig macrophages with LPS, extracellular PGE levels and cellular cAMP levels are elevated. Indomethacin inhibits not only PG synthesis, but also cAMP and collagenase production in LPS-stimulated macrophage cultures. In these indomethacin-inhibited cultures containing LPS, dibutyryl (dB) cAMP, or cholera toxin can restore macrophage collagenase production but not PG synthesis. Moreover, dBcAMP and cholera toxin enhance collagenase production in LPS-activated cultures. Initial activation of the macrophages by an agent such as LPS is a prerequisite for synthesis of collagenase, since in the absence of LPS, dBcAMP or cholera toxin alone are ineffective stimuli. These findings clearly demonstrate a role for PG-induced elevations of cAMP in the production of collagenase by LPS-activated macrophages.

Animals↗
PubMed1980

Pretreatment with blood transfusions in primary kidney transplantation.

Since 1977 a deliberate pretransplant transfusion protocol consisting of two units of leucocyte poor blood given minimum 6 weeks prior to transplantation was applied to earlier not transfused recipients of primary renal transplants in Gothenburg. Graft loss due to rejection at 6 months was 17% and 8% in cadaver and one shared HLA-haplotype living donor recipients, respectively. These results were very much superior to those earlier obtained in not transfused recipients in this centre. The risk of presensitization seemed low.

Blood Transfusion↗
PubMed1980

Outcome of repeated renal regrafting.

Fifteen patients underwent renal transplantation 4 and in one case 5 times. 7/15 grafts (47%) survived more than one year. The one year graft loss due to rejection was 40%. Seven patients are currently alive -- five with excellent graft function and optimal rehabilitation. Two patients are back and well on dialysis. Standard operation technique worked well in all cases. In our opinion repeated renal regrafting is a well worthwhile procedure.

Adult↗
PubMed1979

Relationship of pityriasis amiantacea to psoriasis. A follow-up study.

46 patients with pityriasis aminantacea have been reexamined with regard to the later development of psoriasis and atopic diseases, and their occurrence in first and second degree relatives. HLA antigens of the A, B and C series were also determined. Earlier suggestions of a close association with psoriasis were not confirmed. An association with atopic diseases could not be established. Occurrence of seborrheic dermatitis seems, however, common in patients with pityriasis amiantacea.

Adolescent↗
PubMed1979

HLA antigens in localized granuloma annulare.

HLA antigen frequencies were studied in 46 patients with localized granuloma annulare. The results do not support the hypothesis of an association between this condition and insulin-dependent diabetes mellitus.

Adolescent↗
PubMed1978

Renal graft rejection and blood transfusion before and during the transplant operation.

The outcome of 390 consecutive primary cadaveric renal transplantations in a single centre was studied with regard to blood transfusions before and during the transplant operation. The graft loss due to rejection was 38% at 12 months in the transfused group compared to 67% in the non-transfused group (p less than 0.0005). When peroperative transfusions were added to patients in the previously transfused group, the graft loss was reduced to 34% compared to 50% if no peroperative blood was given (p less than 0.05).

Blood Transfusion↗
PubMed1977

The importance of HLA matching in primary cadaveric kidney transplantation in Gothenburg.

The importance of HLA matching was studied for 319 primary cadaveric kidney transplantations during the period 1969-1976. During 1969-1972 the HLA match was the basis for recipient selection and most cases belonged to match grade 0 or 1. Graft survival was significantly better for match grade 0. Within match grade 1 cases with one foreign HLA B antigen had lower graft survival than cases with one foreign HLA A antigen, indicating the importance of the HLA B series. During 1973-1976 the HLA match was hardly considered in recipient selection. HLA matching during this period seemed to be of less importance, except for match grade 0 and the totally mismatched cases. When matching was performed for the HLA B series, it was found that graft survival was significantly improved when no or only one foreign HLA B antigen was present. The prognosis for cases with foreign HLA B antigen was significantly better during the later period.

Cadaver↗