Definition, Meaning & Synonyms | English word ALLOGRAFT

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Definitions of ALLOGRAFT

1. To perform a transplant of this kind.
2. (surgery) A surgical transplant of tissue between genetically different individuals of the same species.

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Examples of Using ALLOGRAFT in a Sentence

• Liver transplantation or hepatic transplantation is the replacement of a diseased liver with the healthy liver from another person (allograft).
• Allograft: graft taken from one individual placed on a genetically non-identical member of the same species.
• In 1959, Murray went on to perform the world's first successful allograft, who received a kidney from his non-identical brother, after been treated with total body irradiation and continued to live for another 28 years.
• The retear rate in young, active individuals has been shown to be lower when using autograft as compared to allograft.
• Bone grafts may be autologous (bone harvested from the patient's own body, often from the iliac crest), allograft (cadaveric bone usually obtained from a bone bank), or synthetic (often made of hydroxyapatite or other naturally occurring and biocompatible substances) with similar mechanical properties to bone.
• In general, someone's own vein (autograft) is the preferred graft material (or conduit) for a vascular bypass, but other types of grafts such as polytetrafluoroethylene (Teflon), polyethylene terephthalate (Dacron), or a different person's vein (allograft) are also commonly used.
• However, these discoveries, and the host of allograft experiments and observations of twin chimerism they inspired, were seminal for the theories of immune tolerance formulated by Sir Frank McFarlane Burnet and Frank Fenner, who were the first to propose the deletion of self-reactive lymphocytes to establish tolerance, now termed clonal deletion.
• The graft material used can be either an autograft, an allograft, a xenograft, an alloplast (a growth-factor infused collagen matrix), synthetic variants, or combinations thereof.
• As an adjuvant to allograft bone or as a replacement for harvested autograft, bone morphogenetic proteins (BMPs) appear to improve fusion rates after spinal arthrodesis in both animal models and humans, while reducing the donor-site morbidity previously associated with such procedures.
• Grafts can be taken from the patellar tendon, hamstring tendon, quadriceps tendon from either the person undergoing the procedure ("autograft") or a cadaver ("allograft").
• In tissue and organ transplantation, the passenger leukocyte theory is the proposition that leucocytes within a transplanted allograft sensitize the recipient's alloreactive T-lymphocytes, causing transplant rejection.
• Allograft (taken from a cadaver) patellar tendon, Achilles tendon, semitendinosus, gracilis, or posterior tibialis tendon.
• In addition, blockade of ICOS/ICOSLG interaction in animal models of experimental allergic encephalomyelitis and of cardiac allograft rejection revealed a critical role of ICOS and its ligand in inflammatory immune reactions.
• These procedures can include debridement, marrow stimulation techniques such as microfracture, drilling or abrasion arthroplasty, osteochondral autograft or allograft transplantation, mosaicplasty or autologous cartilage implantation.
• When comparing artificial bone to autograft and allograft, it is less invasive and more biocompatible since it avoids the risk of unknown viral infections.
• An example of this is enamel matrix derivative, which serves to enhance the osteoinductive nature of demineralized freeze dried bone allograft (DFDBA).
• There are several varieties: the Harms cage, Ray cage, Pyramesh cage, InterFix cage, and lordotic LT cage, all of which are made from titanium; the Brantigan cage, made from carbon fibre; and the Cortical Bone Dowel, which is cut from allograft femur.
• The surgery involves an autograft of the palmaris longus tendon (mostly considered an accessory tendon) or an allograft of tissue from a cadaver or donor.
• An allograft contains many of the beneficial characteristics of nerve autograft, such as three-dimensional microstructural scaffolding and protein components inherent to nerve tissue.
• When preparing to fuse the sacroiliac joint, a surgeon must consider the desired degree of invasiveness, surgical approach (fascial splitting that is posterior midline, posterior lateral, posterior lateral inferior, lateral, anterior), instrumentation, type of bone grafting material (autograft, allograft, and xenograft), and type of bone graft enhancing material (bone morphogenetic proteins).
• Robbin's publications include more than 300 peer-reviewed journal articles, spanning a variety of research topics including the investigation of stem cells for cardiac regeneration, cardiac transplant allograft vasculopathy, bioengineered blood vessels, and automated vascular anastomotic devices.
• The data also showed that TNX-1500 monotherapy consistently and safely prevented pathologic alloimmunity in non-human promate cardiac and kidney allograft models, as well as pathologic xenoimmunity in kidney xenograft models, both without clinical thrombosis.
• Following MD studies at Tel Aviv University, military service as a medical officer (Major) in the IDF and residency in Pediatrics at Sheba Medical Center, Birk did his PhD at the Weizmann Institute with Irun Cohen, delineating hsp60 as a crucial autoantigen in type 1 diabetes and allograft rejection, effective in their prevention.
• Labral reconstruction is a type of hip arthroscopy in which the patient's native labrum is partially or completely removed and reconstructed using either autograft or allograft tissue.
• in Oxford was mainly focused on surgical techniques of middle ear reconstruction, biocompatible materials and the immunology of allograft tympanoplasty, earning him invitations to present papers at the first International Symposium on Biomaterials in Otology, Leiden, the Netherlands, April 1983, the first International Academic Conference in immunology and Immunopathology as applied to Otology and Rhinology, Utrecht, The Netherlands,1984, the International Conference on the Post Operative Evaluation in Middle Ear Surgery.

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