A procedure in which DNA from one species is transplanted into a cell of another species, and after repeated division of hybrid cells the original cells are destroyed; only achieved in bacteria so far
A technique in which bone marrow is transplanted from one individual to another, or removed from and transplanted to the same individual, in order to stimulate production of blood cells. It is used to treat malignancies, certain forms of anemia, and immunologic deficiencies
Procedure to remove a diseased heart and replace it with a healthy one from a legally dead donor. The first was performed in 1967 by Christiaan Barnard. The diseased heart is removed (except for some atrial tissue to preserve nerve connections to the natural pacemaker). The new heart is put in place and connected to the recipient's blood vessels. Patients and donors are matched for tissue type, but the patient's immune system must still be suppressed to prevent rejection (see immunosuppression). A successful transplant can enable the recipient to have an active life for many years
or renal transplant Replacement of a diseased or damaged kidney with one from a living relative or a legally dead donor. The former's tissue type is more likely to match, reducing the chance of rejection; but removal puts the donor at risk, and a kidney from a dead donor is more likely to be available. The new kidney is implanted and its blood vessels and ureter sewn in place. A near-normal life may be resumed within two months, but the drugs that prevent rejection leave the patient vulnerable to infection. See also transplant
A transplant is a medical operation in which a part of a person's body is replaced because it is diseased. He was recovering from a heart transplant operation. the controversy over the sale of human organs for transplant
A corneal transplant or grafting of corneal tissue due to advanced Keratoconus, injury or other degradation of normally transparent corneal tissue Following transplant surgery custom aspheric, reverse geometry or other specialty GP contact lenses may be indicated
the act of uprooting and moving a plant to a new location; "the transplant was successful"; "too frequent transplanting is not good for plants" an operation moving an organ from one organism (the donor) to another (the recipient); "he had a kidney transplant" place athe organ of a donor into the body of a recipient lift and reset in another soil or situation; "Transplant the young rice plants" be transplantable; "These delicate plants do not transplant easily
The implantation of bone tissue, as in grafting, from one part of the body to another Transplant also refers to the transfer of an organ such as a kidney or heart from one individual to another
If doctors transplant an organ such as a heart or a kidney, they use it to replace a patient's diseased organ. The operation to transplant a kidney is now fairly routine. transplanted organs such as hearts and kidneys. + transplantation trans·plan·ta·tion a shortage of kidneys for transplantation
To transplant someone or something means to move them to a different place. Marriage had transplanted Rebecca from London to Manchester Farmers will be able to seed it directly, rather than having to transplant seedlings. or graft Partial or complete organ or other body part removed from one site and attached at another. It may come from the same or a different person or an animal. One from the same person most often a skin graft is not rejected. Transplants from another person or, especially, an animal are rejected unless they are unusually compatible or have no blood vessels (e.g., the cornea), or if the recipient's immune reaction is suppressed by lifelong drug treatment. Transplanted tissues must match (by blood tests) more closely than blood transfusions. Monoclonal antibodies targeting the cells that cause rejection hold great promise. Tests are now under way with monoclonal antibodies that react with antigens present only on T cells that are participating in rejection, sparing the rest. Rejection matters less in skin grafts, which may need to last only weeks, and bone grafts, whose structure remains after the cells die. In bone-marrow transplants, the donor's marrow cells may attack the recipient's tissues, often fatally. Lung transplants have greater chance of success as part of a heart-and-lung transplant. See also heart transplant, kidney transplant. heart transplant kidney transplant renal transplant