fatal familial insomnia;
variant Creutzfeldt-Jakob disease (vCJD).
- Transmission distortion
meiotic drive which is preferential selection during meiosis (germ cell production); gametic selection which is preferential selection of gametes (germ cells) ; and postzygotic viability which reflects differences in the ability of conceptions to survive. All of these mechanisms for selection result in the production of offspring in proportions that deviate from Mendelian predictions. For […]
- Transmission, perinatal
Transmission of a disease-causing agent (a pathogen) from mother to baby during the perinatal period, the period immediately before and after birth. The perinatal period is defined in diverse ways. Depending on the definition, it starts at the 20th to 28th week of gestation and ends 1 to 4 weeks after birth. The perinatally transmitted […]
- Transmission, vertical
Passage of a disease-causing agent (pathogen) from mother to baby during the period immediately before and after birth. Transmission might occur across the placenta, in the breast milk, or through direct contact during or after birth. For example, HIV can be a vertically transmitted pathogen. Also known as perinatal transmission.
- Transmyocardial laser revascularization
A procedure by which a physician uses a laser to make holes in the heart to relieve the pain of severe angina. Transmyocardial laser revascularization has been done from both the outside and inside of the heart. When done from the outside, a laser (carbon dioxide or holmium laser) is placed in proximity to the […]
The grafting of a tissue from one place to another, just as in botany a bud from one plant might be grafted onto the stem of another. The transplanting of tissue can be from one part of the patient to another (autologous transplantation), as in the case of a skin graft using the patient’s own […]