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Phenylglycine is the organic compound with the formula C 6 H 5 CH(NH 2)CO 2 H. It is a non-proteinogenic alpha amino acid related to alanine, but with a phenyl group in place of the methyl group. It is a white solid. The compound exhibits some biological activity. [1]
For example, it can be used in brain imaging to suppress cerebrospinal fluid (CSF) effects on the image, so as to bring out the periventricular hyperintense lesions, such as multiple sclerosis (MS) plaques. [1] It was invented by Graeme Bydder, Joseph Hajnal, and Ian Young in the early 1990s. [2]
Eponymous medical signs are those that are named after a person or persons, usually the physicians who first described them, but occasionally named after a famous patient. This list includes other eponymous entities of diagnostic significance; i.e. tests, reflexes, etc.
Note that there is generally a difference between the concepts of medical signs and medical symptoms. The two concepts do overlap considerably though, so some topics can correctly be considered as both.
Grey Turner's sign refers to bruising of the flanks, the part of the body between the last rib and the top of the hip. The bruising appears as a blue discoloration, [ 1 ] and is a sign of retroperitoneal hemorrhage , or bleeding behind the peritoneum, which is a lining of the abdominal cavity.
The biosynthesis of streptogramin B is carried out by large multifunctional enzymes called non-ribosomal peptide synthetases (NRPS). In the NRPS system, each amino acid is activated as an aminoacyladenylate and is linked to the enzyme as a thioester with a phosphopantetheinyl group.
Radiologic signs are the signs used for diagnosing physiological and pathological conditions in radiologic images. This list includes the names of radiologic signs in ...
In an effort to identify and group characteristics, he made composites of up to two hundred photographs to create a universal physiognomy example of a group or type. Dr. Reed B. Bontecou , a physician and soldier from New York, took the camera to the American Civil War (1861–1865) and photographed wounded soldiers as well as documenting ...