Negative in Medical Definition

Positive predictive value

... ) → Positive predictive value negative False negative ( Type II error ) True negative → ...

Thymocyte

... of beta-selection, positive selection and negative selection shape thymocytes into a peripheral pool ... selection and lineage commitment 2.4 negative selection 3 Cancer 4 ... The earliest thymocyte stage is the double negative stage (negative for both CD4 and CD8), which more ...

Autoimmune regulator

... by allowing the elimination of autoreactive T cells by the process of negative selection if they are too reactive to self. It is mutated in the rare ... 298 (5597), 1395-1401 ^ Liston, A. et al. (2003) Aire regulates negative selection of organ-specific T cells. Nat Immunol 4 (4), 350-354 ...

Central tolerance

... factor AIRE . After exposure to self antigens, T cells and B cells become immunologically tolerant (non-reactive) in a number of ways : negative selection ( apoptosis ) Anergy (non-responsiveness) Receptor editing (changing the specificity of the autoreactive cell) [4] Division to ...

Depolarization-induced suppression of inhibition

... cells, whether they are ionotropic or metabotropic , typically results in the influx of chloride ions into that target cell. This build-up of negative charge from the chloride ions results in the hyperpolarization of the target cell, making it less likely to fire an action potential . ...

Medical procedure

... Intubation Nebulization Inhalation therapy Ion therapy Fluoride therapy Cold compression therapy Animal-Assisted Therapy negative Pressure Wound Therapy Nicotine replacement therapy Monoclonal antibody therapy Oral rehydration therapy Insulin potentiation therapy ...

Medicine

... physicians combine alternative medicine with orthodox approaches. Medical errors and overmedication are also the focus of many complaints and negative coverage. Practitioners of human factors engineering believe that there is much that medicine may usefully gain by emulating concepts in ...

High Frequency Ventilation

... induced lung injury Ventilator induced lung injury is caused by multiple factors. The human lung is designed to ventilate effectively by using negative pressure in the thorax . Once positive pressure is applied, some degree of VILI is likely to occur. One major causative factor is the over ...

Patient trade-off

... curative treatment to avoid side effects. However, symptoms from the cancer and the fear of living with an untreated tumor may overweigh the fear of negative side-effects. When doing trade-off’s of this nature it is of central importance for the patient and the physician to have access to empirical ...