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Biomedical subjects

R Payne

Publications and source records attributed to R Payne.

At least 163 records · Page 9Linked to original sources

Hyperphagocytosis and the effect of lipopolysaccharide injection in tumour-bearing mice.

(AxT6)F1 hybrid mice received s.c. transplants from (AxT6)F1 mammary carcinomas. At 1, 2 or 4 weeks after tumour transplantation, the mice were bled to obtain plasma and then challenged with 25 micron E. coli lipopolysaccharide (LPS) endotoxin i.v. The mice were killed 24 hr later, further plasma was obtained and their liver ratios and spleen ratios were determined. A similar procedure was carried out on non-tumour-bearing mice. Progressive tumour growth was associated with an increase in the liver ratio. In parallel, mice with 4-week tumour transplant showed increased uptake of colloidal carbon particles and 51Cr-labelled sheep red blood cells in the liver. The plasma amino aspartate transaminase (AST) and the ornithine carbamoyl transferase (OCT) showed a constant rise in all groups of mice after LPS injection. However, at 24 hr after LPS injection, the AST level showed the greatest rise in mice with 4-week tumour transplants. By contrast, OCT, which is liberated only from hepatocytes, showed the greatest rise in non-tumour-bearing mice.

Animals↗

Polyglandular autoimmune disease and HLA.

We have studied 25 patients with polyglandular autoimmune disease with respect to HLA antigens. Whereas the combination of insulin dependent diabetes with Graves' disease or atrophic thyroiditis was associated with an increase in HLA-B8, this was not found to be the case for patients with I.D.D.M. and goitrous thyroiditis. However 4/7 of these patients were DRw3 positive in contrast to previously established normal distribution of HLA-B8 in patients with goitrous thyroiditis alone. These data suggest that patients with polyglandular failure may be highly selected for HLA-B8/DRw3 positivity. We also report on two families with polyglandular autoimmune disease; the results suggest that these disorders are not necessarily transmitted with B8/DRw3 bearing haplotypes. In one family both the affected mother and non-affected father were B8 positive. The mother's B8, which was associated with DRw7, BfF and Rga did not appear to be involved in the transmission of disease susceptibility to two affected offspring. The search for complete haplotypic arrangement should be pursued to see whether this uncommon haplotype arrangement is peculiar to autoimmune diseases.

Adult↗

Association of glyoxalase I allotypes with Graves' disease and diabetes mellitus.

In view of the demonstrated linkage of glyoxalase I (GLO) with HLA, we studied the possible association of Graves' disease and juvenile diabetes with GLO allotypes. Both these diseases are known to show significant HLA associations. The distributions of the two GLO allotypes in the two disease groups were identical to those found in the control group.

Diabetes Mellitus↗

HLA haplotypes in familial Graves' disease.

In order to further elucidate the genetics of Graves' disease, we studied two families with several affected members, as well as tested the degree to which HLA haplotypes were shared in affected sibpairs. Further, we sought to identify the disease related haplotypes by determining the haplotypes shared among affected parent-child combinations. In one family, two affected sibs differed at four possible parental HLA haplotypes; no evidence of recombination was observed which could account for the result. In the other family, five siblings were affected. Four out of the five affected sibs shared the maternal haplotype HLA-A11, Bw51, Cw5, Cw-, DRw5, Bfs, GLO1, whereas three shared the paternal haplotype HLA-A1, B8, Cw-, DRw3, BfS and GLO1. Looking at haplotype sharing, two pairs of sibs were found to be HLA identical, whereas the fifth sib shared one haplotype with one of these pairs but not with the other. Out of 14 (eight of our own and six from the literature) affected sibpairs examined, nine were found to be HLA identical and four shared one haplotype, suggesting that the contribution of both paternal haplotypes may be necessary for the susceptibility to the disease. Fourteen parent-child combinations were studied; in only three out of 13 in which the shared haplotype could be ascertained was the haplotype B8 positive; this distribution is similar to controls. However, of the remaining 10 combinations which did not share a B8 positive haplotype, five were B8 positive at one or the other of the non-shared haplotypes.

Cytotoxicity Tests, Immunologic↗

Association of HLA antigens and primary open-angle glaucoma.

HLA testing of 55 patients with primary open-angle glaucoma revealed no increased frequencies of any of 17 HLA-A and 29 HLA-B antigens. However, the subgroup with a known family history of primary open-angle glaucoma had an increase in the frequency of the HLA-B12 antigen (48%). Intrafamily studies might further define the strength and importance of this association.

Female↗

HLA C and D antigens associated with psoriasis.

The frequency of two newly defined HLA antigens, HLA CT7 and DMA, was found to be greatly increased in patients with psoriasis. These two antigens and those previously found to be associated with the disease, B13, BW16 and BW17, frequently occurred together. The disease may be primarily associated with HLA DMA, or with the HLA haplotypes CT7--B13/W16/W17--DMA.

HLA Antigens↗

Subdivisions of the HLA-B5 and Bw35 complex.

Population studies in 579 individuals, previously phenotyped to be B5 or Bw35, were carried out with 23 HLA antisera defining the B5-Bw35 complex. The inheritance of five subdivisions in this complex, B5.1, B5.2, B5.y, Bw35 and BHR were tested in 23 families. Differing frequencies of these specificities were observed in American Indians, Blacks, Caucasians, Chinese, Filipinos, Japanese and Mexican Americans.

Epitopes↗

An HLA-D specificity found in the Japanese population.

A new HLA-D specificity was found in the Japanese population in two different laboratories. Japanese cell YT, found at Stanford, California, was A9,BW22J,CW1 and cell Wa, found at Sapporo, Japan, was A9,BW22J homozygous. They were shown to be HLA-D identical to the homozygous Japanese cell AH which submitted to the VIth International Histocompatibility Testing Workshop (Workshop number 2-001). This specificity was common in the Japanese (gf = 0.089) but completely absent from 62 Caucasians tested. Strong association of this specificity with HLA-BW22J was demonstrated.

California↗

A comparison of HLA data of the North American black with African black and North American caucasoid populations.

For purposes of genetic comparison, the available HLA data on United States and African Black, together with United States Caucasoid populations, are summarized. Antigen frequencies and pairwise linkage disequilibria are presented for the HLA-A, -B and -C loci in Black populations typed for the 1975 Histocompatibility Testing Workshop. The Black population samples comprise 356 North American Blacks and 411 African Blacks of whom 222 were Bantu. These are compared with a sample of 503 American Caucasoids. All significant linkage disequilibria between the A and B loci found in North American Blacks were also present in the North American Caucasoids. Between the B and C loci, Bw35 and Cw4 were in strong linkage disequilibrium in all groups. Significantly stron association between the A and C loci (Aw28 with Cw3) were observed only in the African Blacks. There were unique disequilibria both in the American Caucasoids and African Blacks. Although the frequencies of many antigens in U.S. Blacks lie between those in Africans and U.S. Caucasoids, there are exceptions such as Aw33, Bw35, Cw4.

Africa↗

HLA-D antigens in the Japanese population.

A Japanese population was typed for HLA-D antigens for the first time using HLA-D homozygous typing cells Dw1 through Dw4 and the homozygous cells LD HO and LD AH, newly found in the Japanese population. Dw3 was absent from the Japanese population which also lacks B8. Dw1, Dw2 and Dw4 were found in this population, but these did not show significant linkage disequilibria with any alleles of the B or C loci. LD HO and LD AH were common in Japanese but absent in Caucasians. LD HO was found to be in strong linkage disequilibrium with Bw35. LD AH showed significant association with Bw22J.

Epitopes↗