Multiple Sclerosis Essay example -- Biology Essays Research Papers

nonuple Sclerosis nonuple sclerosis is a sickness of the central nervous system. It most commonly occurs in individuals between the ages of 20 and forty (1) and in higher numbers of women than men (2). In quaternate Sclerosis (or MS) a loss of the nerves axon coating bulb prohibits the nerve axons from efficiently conducting action and synaptic potentials. Scar tissue (called plaques or lesions) forms at the points where demyelination occurs in the brain and spinal cord, hence the name Multiple Sclerosisor many scars (3). The demyelination found in MS is view to be caused by an auto insubordinate process, in which the bodys immune system attacks its stimulate healthy tissue (4). Other diseases thought to have an autoimmune foot are rheumatoid arthritis, systemic lupus and the insulin dependent form of diabetes mellitus(5). In the immune system, there are two types of white blood cells, B-cells and T-cells. T-cells exist in three forms, all responsible for different immune syst em responses. aid T-cells recognize foreign antigens (the substance the immune system aims to crush), stimulate antibody production, and mature cytokines (chemicals which act as biological messengers) which activate new(prenominal) T-cells. These T-cells are satisfactory to recognize antigens through their receptors, made of protein molecules that selectively bind to certain other molecules. Suppressor T-cells perform a function converse to that of their helper counterparts, turning off the immune system response. Cytotoxic T-cells directly attack and destroy antigenic material (6). In MS, an unknown trigger activates helper T-cells whose antigen particularised receptors recognize central nervous system myelin as an antigen. period what exactly activates these T-cel... ... MS GENETIC SUSCEPTIBILITY http//www.nmss.org/msinfo/current_research/updates/RMP9620.html25) VIRUSES http//www.nmss.org/cmsi/cmsi18.html26) Remyelination Progress Reported http//www.myelin.org/puppress.ht ml27) data-based ALLERGIC ENCEPHALOMYELITIS http//www.nmss.org/cmsi/cmsi157.html28) Current Research Updates http//www.nmss.org/msinfo/current_research/updates/summary.html29) Virtual Hospital, Chapter 14 Neurology MS http//www.vh.org/Providers/ClinRef/FPHandbook/Chapter14/08-14.htmlOther WWW Sites30) Knowledge Weavers http//medstat.med.utah.edu/kw/ms/31) World of Multiple Sclerosis http//www.msif.org/language_choice.html32) National Multiple Sclerosis Society http//www.nmss.org/33) MS approach http//www.ms-gateway.com/34) MS Gateway Glossary http//www.ms-gateway.com/glossary.html