Allograft

Allograft

An allograft or allogeneic transplant or homograft is a transplant in which transplanted cells, tissues, or organs are sourced from a genetically non-identical member of the same species. [ [http://www.ehealthmd.com/library/acltears/ACL_surgery.html#allograft Surgery For ACL Tears ] ] Most human tissue and organ transplants are allografts.

In contrast, a transplant from another species is called a xenograft. A transplanted organ or tissue from a genetically identical donor, i.e., an identical twin, is termed an isograft. Finally, when a tissue is transplanted from one site to another on the same patient, it is termed an autograft.

When a host mounts an immune response against an allograft or xenograft, the process is termed rejection.

A variety of tissue and organs types can be used for allografts. These include:
*skin transplants
*corneal transplants
*heart transplants
*liver transplants
*kidney transplants
*bone marrow transplants
*bone allograft
*ligament or tendon allograft

ee also

*Allograft diseases
*Medical grafting

References

Organ transplantation


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Look at other dictionaries:

  • allograft — allograft. См. аллографт. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • allograft — [al′ō graft΄, al′əgraft΄] n. a graft of tissue or an organ taken from an individual of the same species as the recipient but with different hereditary factors; homograft: see AUTOGRAFT, XENOGRAFT …   English World dictionary

  • allograft — noun Date: 1961 a homograft between allogeneic individuals • allograft transitive verb …   New Collegiate Dictionary

  • allograft — A graft transplanted between genetically nonidentical individuals of the same species. SYN: allogeneic graft, homograft, homologous graft, homoplastic graft. * * * al·lo·graft al ə .graft n a homograft between allogeneic individuals allograft vt… …   Medical dictionary

  • Allograft diseases — are those in which cancerous cells are spread between individuals of the same species by physical contact. To date only two such diseases have been discovered, these are Devil facial tumour disease found in the Tasmanian Devil and canine… …   Wikipedia

  • allograft — n. [Gr. allos, other; OF. greffe, graft] A piece of tissue or organ from one individual grafted to another of the same species …   Dictionary of invertebrate zoology

  • allograft — (al o graft) A transplant between genetically different individuals of the same species …   Dictionary of microbiology

  • allograft — Grafts between two or more individuals allogeneic at one or more loci (usually with reference to histocompatibility loci). As opposed to autograft and xenograft …   Dictionary of molecular biology

  • allograft — /al euh graft , grahft /, n. Surg. a tissue or organ obtained from one member of a species and grafted to a genetically dissimilar member of the same species. Also called allotransplant, homograft, homotransplant. Cf. autograft, syngraft,… …   Universalium

  • allograft — noun A surgical transplant of tissue between genetically different individuals of the same species; a homograft or homotransplant …   Wiktionary

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