Search results
Results from the WOW.Com Content Network
Diamond-Blackfan Anemia is an example of a congenital bone marrow failure syndrome that primarily affects red blood cell production. In DBA, the erythroid cell lineage is more susceptible to cell death due to abnormal ribosome function. [4] This leads to a reduced population of red blood cell precursors and a resulting reticulocytopenia and anemia.
Its deficiency can cause neurodevelopmental problems which can be partly reversible with early treatment. [27] Only a small subset of dementia cases have been found to be reversible with vitamin B 12 therapy. [28] Tinnitus may be associated with vitamin B 12 deficiency. [29] Vitamin B 12 deficiency may accompany certain eating disorders or ...
Vertigo is a relatively common symptom that can result from ischemia to the cerebellum, medulla or (rarely) the internal auditory artery which supplies the vestibular system of the inner ear. While vertigo is a common feature of VBI or posterior circulation stroke, VBI only rarely presents with vertigo alone (without other neurological signs).
Blood tests may show fewer but larger red blood cells, low numbers of young red blood cells, low levels of vitamin B 12, and antibodies to intrinsic factor. [6] Diagnosis is not always straightforward and can be challenging. [10] Because pernicious anemia is due to a lack of intrinsic factor, it is not preventable. [11]
A greyout is a transient loss of vision characterized by a perceived dimming of light and color, sometimes accompanied by a loss of peripheral vision. [1] It is a precursor to fainting or a blackout and is caused by hypoxia (low brain oxygen level), often due to a loss of blood pressure. Greyouts have a variety of possible causes:
Vision loss in toxic and nutritional optic neuropathy is bilateral, symmetric, painless, gradual, and progressive. Dyschromatopsia, a change in color vision, is often the first symptom. Some patients notice that certain colors, particularly red, are less bright or vivid; others have a general loss of color perception.
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
Hypotension, also known as low blood pressure, is a cardiovascular condition characterized by abnormally reduced blood pressure. [1] Blood pressure is the force of blood pushing against the walls of the arteries as the heart pumps out blood [2] and is indicated by two numbers, the systolic blood pressure (the top number) and the diastolic blood pressure (the bottom number), which are the ...