Evidence map›Paper›PMID 2899464›Full record

ArticleClinical and experimental immunology1988

The rate of loss of CR1 from ageing erythrocytes in vivo in normal subjects and SLE patients: no correlation with structural or numerical polymorphisms.

F Moldenhauer, M Botto, M J Walport

Open access · greenAbstract read
In one paragraph

Article in Clinical and experimental immunology, 1988. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
0.4field-weighted citation impact, top 38% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

10 citing papers in PubMed, 40 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors at 1 institution in 1 country.

F MoldenhauerDepartment of Medicine, Hammersmith Hospital, London, UK.
M Botto
M J Walport
Hammersmith Hospital · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The stability of CR1 (complement receptor type 1) on ageing erythrocytes in vivo was examined in a group of normal subjects who had been genotyped using a restriction fragment length polymorphism (detected using a cDNA probe for CR1) that correlates with the numerical expression of CR1 on normal erythrocytes (H = allele correlating with high expression, L = low). Erythrocytes were separated into 5 fractions of increasing age on discontinuous Percoll gradients. Mean CR1 numbers on erythrocytes fell from 636 molecules per cell in the first fraction to 384 in the fifth in the HH group and from 478 to 315 in the LL group. There was no difference in the rate of decline of CR1 numbers between the groups. A group of nine SLE patients was also studied in the same way; their genotypes were HH (four) and HL (five). Mean CR1 numbers amongst all of these patients fell from 477 to 232, a faster rate of decline than in a genotypically matched group of normal subjects. There was no difference in the prevalence of the different structural allotypes amongst 30 SLE patients compared with 21 normal subjects. These data provide further evidence that there are enhanced extracellular mechanisms for the removal of CR1 from erythrocytes of SLE patients and do not support the hypothesis that inherited variation in CR1 expression on erythrocytes increases disease susceptibility to SLE.

Indexed as

Erythrocyte AgingPolymorphism, GeneticPolymorphism, Restriction Fragment LengthCell SeparationCentrifugation, Density GradientErythrocytesHumansLupus Erythematosus, SystemicReceptors, ComplementReceptors, Complement 3bReceptors, ComplementReceptors, Complement 3b

Identifiers

PMID2899464
PMCPMC1541491
OpenAlexW2419378380

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.