101. Vitamin B12 - Ask The Dietitian Got questions about Vitamin B 12 or pernicious anemia Ask Joanne Larsen,Registered Dietitian and nutrition counselor. http://www.dietitian.com/vitaminb12.html

Vitamin B12 If you have time, I have pernicious anemia and wondered if you had any information on that. Pernicious anemia is caused by a deficiency of vitamin B 12. It would show up on a blood test because of the large immature red blood cells that are present. These large red blood cells are very inefficient at carrying oxygen. It can have at least 2 causes - one a lack of vitamin B 12 rich foods in the diet - two an inadequate amount of the intrinsic factor in the stomach. People at risk for pernicious anemia are veg*ans unless they have a high intake of folacin which helps red blood cells develop to the correct size and shape. However adequate folacin does not repair the nerve damage caused by a vitamin B 12 deficiency. Actually it can take quite long, up to 5 years, to develop a vitamin B 12 deficiency depending on a person's body stores. The amount of vitamin B 12 your body stores is dependent on the amount of vitamin B 12 rich foods you eat. Animal products are the best source of vitamin B 12 as there are no real good vegetable sources. Unfortunately, by the time a deficiency does occur, it can cause irreversible nerve and brain damage. In order to absorb vitamin B 12, a person needs the "intrinsic factor" in their stomach. This factor is made in the stomach, but if a person has part or all of their stomach removed, their ability to make intrinsic factor is reduced or eliminated. Basically, the intrinsic factor allows your body to absorb vitamin B 12 and without it, even if you eat foods rich in vitamin B 12, you can still develop a deficiency. In the case of someone having their stomach removed, vitamin B 12 can be administered by injection which must be continued every three weeks for the remainder of life. This method of vitamin administration ensures that it is delivered directly into the blood and bypasses the stomach where the intrinsic factor is insufficient or missing.

102. Hematology pernicious anemia is caused by a lack of sufficient quantities of vitamin B12.As discussed in lecture, the disorder is rare one needs only small dietary http://www.pnb.sunysb.edu/hby531/Problem_Sets/clinical_hematology.htm

In Word Format Clinical Hematology Sickle-cell disease Sickle-cell disease is an inherited mutation that produces a hemoglobinopathy the glutamate at the number 6 amino acid in the 146-amino acid b chain of hemoglobin (Hb) is replaced by valine. This mutation results from a single base-pair substitution in the gene encoding for the b chain. The resulting Hb in sickle-cell patients is denoted HbS In sickle-cell disease, when the HbS encounters regions where there is a low O tension (like venous blood arising from an exercising muscle), the HbS polymerizes, forming long strands within the RBC that distorts its shape (see figure, right). The distorted RBCs lose there normal flexibility and pile up, blocking blood flow through capillaries and small vessels. One can enter a positive feedback situation whereby the local ischemia (reduced blood flow) causes further drops in the O levels, which causes still further sickling, and the patient is said to be in sickle-cell crisis Patients also suffer from severe hemolytic anemia —a reduction of the number of circulating RBCs due to hemolysis of the fragile sickle cells.

103. Arch Intern Med -- Abstract: Unsuspected Pernicious Anemia In A Patient With Sic Unsuspected pernicious anemia in a patient with sickle cell disease pernicious anemia with Neuropsychiatric Dysfunction in a Patient with Sickle Cell http://archinte.ama-assn.org/cgi/content/abstract/147/10/1828

Select Journal or Resource JAMA Archives of Dermatology Facial Plastic Surgery Family Medicine (1992-2000) General Psychiatry Internal Medicine Neurology Ophthalmology Surgery Student JAMA (1998-2004) JAMA CareerNet For The Media Meetings Peer Review Congress Vol. 147 No. 10, October 1, 1987 Featured Link E-mail Alerts ARTICLE Article Options Send to a Friend Similar articles in this journal Literature Track Add to File Drawer Download to Citation Manager PubMed citation Articles in PubMed by Sinow RM Carmel R Articles that cite this article Contact me when this article is cited Unsuspected pernicious anemia in a patient with sickle cell disease receiving routine folate supplementation R. M. Sinow, C. S. Johnson, D. S. Karnaze, M. E. Siegel and R. Carmel Department of Radiology, Los Angeles County-University of Southern California Medical Center. Although the issue of folate supplementation in sickle cell anemia remains controversial, routine supplementation has become common. The major drawback to indiscriminate folate therapy is the potential of masking findings of vitamin B12 (cobalamin) deficiency. This has been dismissed as

104. American RSDHope At this point, the symptoms of pernicious anemia will develop. pernicious anemia is Most patients with pernicious anemia are older, usually over 60. http://www.rsdhope.org/Showpage.asp?PAGE_ID=33&PGCT_ID=2651

105. Anemia, Pernicious Definition - Medical Dictionary Definitions Of Popular Medica Online Medical Dictionary and glossary with medical definitions. http://www.medterms.com/script/main/art.asp?articlekey=6855

106. Megaloblastic (Pernicious) Anemia Detailed information on megaloblastic (pernicious) anemia, including causes,symptoms, diagnosis, and treatment. http://www.healthsystem.virginia.edu/uvahealth/peds_hematology/megalob.cfm

[ Skip Navigation ] Health System Home For Health Answers Healthcare Professionals ... Advanced Search Health System Search Search for Information People UVa Home Health System News Health System Events (all) Health System Publications ... Making a Gift Topics Adolescent Medicine Allergy/Asthma/Immunology Blood Disorders Burns Cancer Common Injuries/Poison Tips Craniofacial Anomalies Dermatology Diabetes/Endo/Metabolism Eye Care Genitourinary/Kidney High-Risk Newborn High-Risk Pregnancy Infectious Diseases Medical Genetics Mental Health Nervous System Disorders Normal Newborns Oral Health Orthopaedics Pediatric Surgery Respiratory Disorders Terminal Illness in Children Transplantation UVa Health Topics A to Z FIND A DOCTOR Pediatric Hematology-Oncology MAKE AN APPOINTMENT CALENDAR OF EVENTS ... CLINICAL TRIALS Search This Site Megaloblastic (Pernicious) Anemia What is megaloblastic anemia? Megaloblastic anemia is a type of anemia characterized by very large red blood cells. In addition to the cells being large, the inner contents of each cell are not completely developed. This malformation causes the bone marrow to produce fewer cells, and sometimes the cells die earlier than the 120-day life expectancy. Instead of being round or disc-shaped, the red blood cells can be oval. What causes megaloblastic anemia?

107. Health Information Megaloblastic (pernicious) anemia. What is megaloblastic anemia? Megaloblasticanemia is a type of anemia characterized by very large red blood cells. http://www.baptisthealth.net/greystone/content.jsp?pageid=P00080

108. The Methodist Hospital: Health Topic Home Megaloblastic (pernicious) anemia is a rare disorder in which the body does Megaloblastic (pernicious) anemia results from a lack of intrinsic factor in http://www.methodisthealth.com/cgi-bin/hmdim/home/healthTopic.do?pageTypeId=0&ch

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