Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
2010-5-7
pubmed:abstractText
The clinical significance of C4d positivity in patients with stable graft function is undetermined. This study evaluated the clinical outcome of protocol biopsy-proven C4d-positive renal transplants with stable graft function in the early post-transplantation period. Protocol biopsies (n = 79) were performed on stable allografts on the 14th post-transplant day, and indication biopsies (n = 74) were performed on dysfunctioning allografts within one yr after transplantation. Clinical and histological findings, graft function and graft survival rates were compared between C4d-positive and C4d-negative grafts in each group. The incidence of C4d positivity was 5.1% in protocol biopsies and 9.5% in indication biopsies. In protocol biopsies, C4d-positive allografts showed minimal tubulointerstitial inflammation, and the graft function and graft survival rate did not differ from C4d-negative allografts. All C4d-positive allografts maintained stable graft function without anti-rejection therapy, and follow-up biopsies of two patients showed no C4d deposition or evidence of rejection. On the other hand, C4d-positive allografts in indication biopsies showed severe tissue injury, and the graft survival rate was significantly lower than C4d-negative allografts. In conclusion, C4d-positive allografts with stable graft function in the early post-transplantation period take an indolent course.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
1399-0012
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
23
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
812-8
pubmed:meshHeading
pubmed-meshheading:19191803-Adolescent, pubmed-meshheading:19191803-Adult, pubmed-meshheading:19191803-Aged, pubmed-meshheading:19191803-Biopsy, pubmed-meshheading:19191803-Complement C4b, pubmed-meshheading:19191803-Enzyme-Linked Immunosorbent Assay, pubmed-meshheading:19191803-Female, pubmed-meshheading:19191803-Graft Rejection, pubmed-meshheading:19191803-Graft Survival, pubmed-meshheading:19191803-HLA Antigens, pubmed-meshheading:19191803-Humans, pubmed-meshheading:19191803-Immunohistochemistry, pubmed-meshheading:19191803-Incidence, pubmed-meshheading:19191803-Kidney, pubmed-meshheading:19191803-Kidney Failure, Chronic, pubmed-meshheading:19191803-Kidney Transplantation, pubmed-meshheading:19191803-Male, pubmed-meshheading:19191803-Middle Aged, pubmed-meshheading:19191803-Postoperative Period, pubmed-meshheading:19191803-Prognosis, pubmed-meshheading:19191803-Retrospective Studies, pubmed-meshheading:19191803-Transplantation, Homologous, pubmed-meshheading:19191803-Young Adult
pubmed:articleTitle
Clinical significance of C4d deposition in stable renal allografts in the early post-transplantation period.
pubmed:affiliation
Transplantation Research Center, Kangnam St Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea.
pubmed:publicationType
Journal Article, Comparative Study