2021 American journal of transplantation : official journal of the American Society of Transplantation and the American Society of Transplant Surgeons
* Clinical parameters and biomarkers predicting spontaneous operational tolerance after liver transplantation: A scoping review.
- Indefinite allograft acceptance after immunosuppression withdrawal (ISW), also known as operational tolerance (OT), can occur spontaneously after liver transplantation (LT), but reliable and reproducible prognosis of OT versus non-OT outcomes remains elusive. To prime this, systematic extraction of OT-predictive factors from the literature is crucial. We provide the first comprehensive identification and synthesis of clinical parameters and biomarkers predicting spontaneous OT in non-autoimmune/non-replicative viral LT recipients selected for ISW. We searched Embase, Medline, the Cochrane Central Register of Controlled Trials, clinicaltrials.gov, and the World Health Organization International Clinical Trials Registry Platform for articles, conference abstracts, and ongoing trials. We contacted principal investigators of stand-alone abstracts and ongoing trials for unpublished data and screened citations and references of eligible articles. Twenty-three articles reporting on 11 completed ISW studies, 13 abstracts, and five trial registry entries were included. Longer time between LT and ISW was the only clinical parameter that may increase the incidence of OT. Prognostic biomarkers conspicuously differed between pediatric and adult ISW candidates. These included allograft gene expression patterns and peripheral blood immune exhaustion markers for adults, and histological allograft scores for children. Our results will foster cross-validation efforts to facilitate safe and harmonized candidate selection for successful ISW.
Overview of noun factor
The noun factor has 7 senses (first 4 from tagged texts)
1. (31) factor -- (anything that contributes causally to a result; "a number of factors determined
the outcome")
2. (8) component, constituent, element, factor, ingredient -- (an abstract part of something;
"jealousy was a component of his character"; "two constituents of a musical composition are melody
and harmony"; "the grammatical elements of a sentence"; "a key factor in her success"; "humor: an
effective ingredient of a speech")
3. (4) divisor, factor -- (one of two or more integers that can be exactly divided into another
integer; "what are the 4 factors of 6?")
4. (1) agent, factor, broker -- (a businessman who buys or sells for another in exchange for a
commission)
5. factor -- (any of the numbers (or symbols) that form a product when multiplied together)
6. factor -- (an independent variable in statistics)
7. gene, cistron, factor -- ((genetics) a segment of DNA that is involved in producing a polypeptide
chain; it can include regions preceding and following the coding DNA as well as introns between the
exons; it is considered a unit of heredity; "genes were formerly called factors")
Overview of verb factor
The verb factor has 3 senses (first 1 from tagged texts)
1. (2) factor, factor in, factor out -- (resolve into factors; "a quantum computer can factor the
number 15")
2. factor -- (be a contributing factor; "make things factor into a company's profitability")
3. factor, factor in, factor out -- (consider as relevant when making a decision; "You must factor
in the recent developments")
--- WordNet end ---