Search results
Results from the WOW.Com Content Network
An ANA test is considered positive if fluorescence is seen at a titre of 1:40/1:80. Higher titres are more clinically significant as low positives (≤1:160) are found in up to 20% of healthy individuals, especially the elderly. Only around 5% of the healthy population have ANA titres of 1:160 or higher. [8] [53]
Affected pregnant women follow careful clinical observation because they are more likely to see disease progression. Those with the disease at the beginning of pregnancy will keep the disease undifferentiated against 25% who progress to a defined disease at the end of pregnancy. In addition, 45% of pregnancies with the disease end in preterm birth.
A viral titer is the lowest concentration of a virus that still infects cells. To determine the titer, several dilutions are prepared, such as 10 −1, 10 −2, 10 −3, ... 10 −8. [1] The titer of a fat is the temperature, in degrees Celsius, at which it solidifies. [4] The higher the titer, the harder the fat.
Women’s bodies go through many changes in menopause and the years leading up to it, known as perimenopause. This natural step in the aging process marks the end of the reproductive years. In ...
Meaning ā (a with a bar over it) before (from Latin ante) before: A: assessment a.a. of each (from Latin ana ana) amino acids: A or Ala – alanine; C or Cys – cysteine; D or Asp – aspartic acid; E or Glu – glutamic acid; F or Phe – phenylalanine; H or His – histidine; I or Ile – isoleucine; K or Lys – lysine; L or Leu ...
Heterophile antibodies are of particular importance in clinical medicine for their use in detecting Epstein-Barr Virus (the causative agent of infectious mononucleosis). EBV infection induces the production of several antibody classes, of which heterophile antibodies are one (others include anti-i, rheumatoid factor and ANA). Heterophile ...
After seroconversion, the antibody is detectable by standard techniques and remains detectable unless the individual seroreverts, in a phenomenon called seroreversion, or loss of antibody detectability, which can occur due to weakening of the immune system or decreasing antibody concentrations over time. Seroconversion refers the production of ...
Some women with autoimmune diseases may have problems getting pregnant. This can happen for many reasons such as medication types or even disease types. [59] Tests can tell if fertility problems are caused by an autoimmune disease or an unrelated reason. Fertility treatments are able to help some women with autoimmune disease become pregnant. [2]