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Mitochondrial disease is a group of disorders caused by mitochondrial dysfunction. Mitochondria are the organelles that generate energy for the cell and are found in every cell of the human body except red blood cells. They convert the energy of food molecules into the ATP that powers most cell functions.
Cell damage (also known as cell injury) is a variety of changes of stress that a cell suffers due to external as well as internal environmental changes. Amongst other causes, this can be due to physical, chemical, infectious, biological, nutritional or immunological factors.
This article provides a list of autoimmune diseases. These conditions, where the body's immune system mistakenly attacks its own cells, affect a range of organs and systems within the body. Each disorder is listed with the primary organ or body part that it affects and the associated autoantibodies that are typically found in people diagnosed ...
Doss porphyria/ALA dehydratase deficiency/Plumboporphyria (the disease is known by multiple names) DPT Diphtheria, pertussis, tetanus: DRSP disease Drug-resistant Streptococcus pneumoniae disease DS Down syndrome: DSPS Delayed sleep phase syndrome: DTs Delirium tremens: DVD Developmental verbal dyspraxia: DVT Deep vein thrombosis
[citation needed] An example of trisomy in humans is Down syndrome, which is a developmental disorder caused by an extra copy of chromosome 21; the disorder is therefore also called "trisomy 21". [7] An example of monosomy in humans is Turner syndrome, where the individual is born with only one sex chromosome, an X. [8]
However, organelle genes in heteroplasmic cells can segregate because they each have several copies of their genome. This may result in daughter cells with differential proportions of organelle genotypes. [8] Mendel states that nuclear alleles always segregate during meiosis. However, organelle alleles may or may not do this. [8]
Hunter syndrome, or mucopolysaccharidosis type II (MPS II), is a rare inherited lysosomal storage disease in which large sugar molecules called glycosaminoglycans (or GAGs or mucopolysaccharides) build up in body tissues. Hunter syndrome is caused by a deficiency of the lysosomal enzyme iduronate-2-sulfatase (I2S).
Overview of signal transduction pathways involved in apoptosis. Cell death is the event of a biological cell ceasing to carry out its functions. This may be the result of the natural process of old cells dying and being replaced by new ones, as in programmed cell death, or may result from factors such as diseases, localized injury, or the death of the organism of which the cells are part.