Related Experiment Video
Updated: Aug 18, 2026

Measurement of Heme Synthesis Levels in Mammalian Cells
Published on: July 9, 2015
Pernicious anemia in Arabs
1Department of Medicine (38), King Khalid University Hospital, Riyadh, Saudi Arabia.
Insights
Pernicious anemia in Arab populations presents similarly to Europeans but with earlier onset and higher intrinsic factor antibody frequency. Early diagnosis and cyanocobalamin therapy can lead to positive outcomes, including successful conception.
Area of Science:
- Hematology
- Immunology
- Gastroenterology
Background:
- Pernicious anemia is an autoimmune condition affecting vitamin B12 absorption.
- Previous studies on pernicious anemia primarily focused on Northern European populations.
Purpose of the Study:
- To describe the clinical characteristics of pernicious anemia in Arab patients.
- To compare the presentation of pernicious anemia in Arabs with that in other ethnic groups.
Main Methods:
- Retrospective review of 18 pernicious anemia cases diagnosed between 1986 and 1994.
- Analysis of patient demographics, presenting symptoms, laboratory findings, and associated autoimmune diseases.
Main Results:
- The mean age of presentation was 51 years, lower than typically reported in Europeans.
- A higher frequency of intrinsic factor antibodies was observed compared to Northern Europeans.
- Two patients had associated autoimmune conditions; one conceived after treatment for infertility.
Conclusions:
- Pernicious anemia in Arabs shares many features with European cases but exhibits distinct differences in age of onset and antibody prevalence.
- These findings highlight the importance of considering ethnic variations in pernicious anemia presentation.
- Timely cyanocobalamin therapy can effectively manage pernicious anemia and its complications.
Abstract:
Over a nine-year period extending from January 1986 to December 1994, eighteen cases of pernicious anemia occurring in Arabs were diagnosed at King Khalid University Hospital in Riyadh. There were 12 Saudi Arab patients and 6 non-Saudi Arabs. There were 11 males and 7 females. The mean age at presentation was 51 years. The presenting symptoms, laboratory features and the disease pattern were similar to those described in northern European patients in most respects with two possible exceptions. First, the mean age at presentation was lower and second, there was a higher frequency of the antibody to intrinsic factor than previously described in northern Europeans. Both differences have been previously noted in Blacks. Associated autoimmune diseases were identified in two patients, one of whom had diabetes mellitus and vitiligo while the other had a remote history of Graves' disease. One young female patient with primary infertility successfully conceived shortly following the initiation of appropriate cyanocobalamin therapy.
Related Concept Videos
Vitamins
Overview of Protein Metabolism
Amino acids play various roles in the body once they are absorbed into cells. They are restructured...
Chronic Pancreatitis I: Introduction
Pancreatitis is the inflammation of the pancreas, which occurs when the immune system becomes active and causes swelling, pain, and disruptions in organ function. Pancreatitis can manifest as either an acute or chronic condition.
Acute pancreatitis arises suddenly and lasts for a brief duration, while chronic pancreatitis is a long-term affliction...
Jaundice
Chronic Pancreatitis I: Introduction
Chronic Pancreatitis II: Pathophysiology

