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But to first make clear what a bruise is: It’s the result of a broken blood vessel (a.k.a. capillary) which causes a leakage and collection of blood under the skin’s surface, explains Riza ...
Purpura (/ ˈ p ɜːr p jʊər ə / [1]) is a condition of red or purple discolored spots on the skin that do not blanch on applying pressure. The spots are caused by bleeding underneath the skin secondary to platelet disorders, vascular disorders, coagulation disorders, or other causes. [2]
Vitamin B 12 serum levels are used to detect its deficiency, but do not distinguish its causes. Vitamin B 12 levels can be falsely high or low and data for sensitivity and specificity vary widely. Normal serum levels may be found in cases of deficiency where myeloproliferative disorders , liver disease , transcobalamin II , or small intestinal ...
What it looks like: Rosacea causes redness and thick skin on the face, usually clustered in the center. Easy flushing, a stinging sensation, and small, pus-filled pimples are other common signs of ...
Men in both studies, on a diet devoid or nearly devoid of vitamin C, had blood levels of vitamin C too low to be accurately measured when they developed signs of scurvy, and in the Iowa study, at this time were estimated (by labeled vitamin C dilution) to have a body pool of less than 300 mg, with daily turnover of only 2.5 mg/day.
PCT is characterized by onycholysis and blistering of the skin in areas that receive higher levels of exposure to sunlight. The primary cause is a deficiency of uroporphyrinogen decarboxylase (UROD), a cytosolic enzyme that is a step in the enzymatic pathway that leads to the synthesis of heme. Behind the direct cause there are a number of ...
Vitamin B 12 deficiency is one of the main causes of anemia. [16] In countries where B 12 deficiency is common, it is generally assumed that there is a greater risk of developing anemia. However, the overall contribution of vitamin B 12 deficiency to the global incidence of anemia may not be significant, except in elderly individuals ...
The historic importance of vitamin C deficiency relates to occurrence on long sea-going voyages, when the ship food supplies had no good source of the vitamin. Deficiency results in scurvy when plasma concentrations fall below 0.2 mg/dL, whereas the normal plasma concentration range is 0.4 to 1.5 mg/dL.