#transplant

• Allokeratoplasty — An ophthalmological surgical procedure in which a patient's damaged corneal tissue is replaced with a corneal graft (transplant) harvested from a deceased human donor of the same species; a homologous corneal transplant structurally performed to restore optical transparency and improve visual acuity.
• Allogenic — Produced, determined, or controlled by external factors or forces foreign to the respective system, community, or organism. In ecology, it refers to ecological successions induced by external abiotic changes (e.g., drought, floods); in geology, it is synonymous with allogenetic; in medicine (immunology), it describes a transplant or tissue harvested from an individual of the same species but genetically distinct.
• Allokeratoplasty — A highly precise ophthalmic surgical procedure consisting of transplanting or grafting a corneal fragment harvested from a deceased human (homologous) donor onto the eye of a patient presenting with opacities, perforations, or severe degenerative corneal diseases. This structural surgical treatment aims to restore corneal transparency, correct severe irregular astigmatism, and restore optimal visual acuity to the recipient.
• Allotriodontia — A congenital dental anomaly or structural pathological condition characterized by the presence or development of teeth in completely aberrant, atypical positions or outside the normal alveolar arches (such as inside the maxillary sinus, on the palate, or in the nasal cavities); alternatively, it can define the grafting or transplantation of a foreign (heterologous) tooth. This clinical phenomenon often requires complex orthodontic surgical interventions to prevent the destruction of neighboring bone structures.
• Autologous keratoplasty — An ophthalmologic surgical procedure of corneal transplantation (keratoplasty) in which the tissue graft utilized originates from the same patient, completely eliminating the risk of immunological graft rejection.
• Autograft — A tissue graft or organ harvested from one part of an individual's body and transplanted to another site on the exact same organism, a procedure also known as autotransplantation; an autologous graft. This surgical technique completely eliminates the risk of immunological rejection, as the biological material originates from the recipient patient.
• Autologous — Originating from the same individual; obtained, harvested, or derived from the patient's own organism to whom it is to be administered. In surgical and hematological practice, the term describes own tissue grafts, stem cells, plasma, or blood transfusions, this medical approach completely eliminating the risk of immune rejection, graft-versus-host disease, or transmission of viral infections.
• Autoplasty — A surgical procedure involving the repair, reconstruction, or replacement of a damaged tissue or organ, performed by transplanting a biological fragment (skin, bone, muscle, or vascular graft) harvested from another area of the same patient's body. This structural process guarantees perfect immunological compatibility and eliminates the risk of graft rejection, being widely utilized in severe burn treatments and restorative plastic surgery.
• Autotransplantation — A surgical or medical procedure consisting of transplanting a tissue, organ, or cellular assembly (such as bone marrow, stem cells, or skin and bone fragments) harvested from an individual and grafted into another anatomical area of the same organism. This structural phenomenon completely eliminates the risk of immunological rejection and the need for immunosuppressive drugs, ensuring optimal biological integration.
• Bacteriotherapy — A therapeutic method consisting of the deliberate and controlled administration of live (beneficial or selected) bacterial cultures into the organism to rebalance the microbiome, combat pathogens, and treat various conditions. In a modern clinical sense, excellent examples include advanced probiotics usage or fecal microbiota transplantation to cure severe and recurrent Clostridioides difficile infections.