What do Annie Oakley, the sharp shooter, and Alexander Graham Bell, the inventor of the telephone, have in common? The answer is "pernicious anemia". Annie Oakley died of the disease in 1926. Back then the diagnosis of pernicious anemia was a death sentence but today with correct diagnosis and prompt treatment sufferers usually make a full recovery.
Most people are aware of the more common form of anemia, the one caused by insufficient iron. But pernicious anemia is different.
Also known as "macrocytic achylic anemia", pernicious anemia is caused by a lack of a substance called "intrinsic factor" needed in the gastrointestinal tract to absorb vitamin B-12.
Pernicious anemia is an autoimmune disease where the body attacks itself, in this case it attacks the intrinsic factor. The inability to absorb B-12 in the intestinal tract causes inadequate production of red blood cells. Pernicious anemia is essentially the lack of B-12. In fact, Vitamin B-12 itself was only discovered in the search for a cure for pernicious anemia.
Pernicious Anemia Is a Serious Condition
Left untreated, pernicious anemia can cause paranoia, delirium and confusion. It can also lead to gastric cancer.
What Causes Pernicious Anemia?
The causes of pernicious anemia are varied. Some people inherit it and simply have a defective gene passed down from one or both parents.
It has also been discovered that people of northern European descent are more likely to develop the disease than others. Men and women are equally at risk.
Other causes of pernicious anemia are existing gastric problems and other conditions. People with the following conditions are particularly susceptible--- Chronic thyroiditis, Hypoparathyroidism, Hypopituitarism, Graves disease, Addison’s disease, Type 1 diabetes, Secondary amenorrhea, myasthenia gravis, vitiligo, Crohn's disease and celiac disease.
Those who have recently gone through stomach surgery such as gastric bypass surgery and those taking certain medications are also at risk.
The condition is not caused alone by eating the wrong foods with the exception of strict vegetarians or vegans. However, it is an important factor. Foods rich in vitamin B-12 include; meat-especially liver, poultry, fish and shellfish, milk and milk products. Eggs can be a good source also but it should be noted that they also contain elements that block absorption. For those who are vegan, it is recommended that they eat B- 12 fortified foods such as breakfast cereals.
Symptoms of Pernicious Anemia
Adults over the age of 30 are most at risk but the disease is often not diagnosed before the age of 60 because of the nature of the symptoms. The symptoms that the disease present are easily misdiagnosed as other conditions.
Because of B-12’s importance to the brain and nervous system many of the symptoms relate to these and the lack of oxygen traveling to the brain.
Symptoms of pernicious anemia include; bleeding gums, diarrhea, fatigue, impaired sense of smell, loss of muscle reflexes, loss of appetite, pallor and early whitening of the hair, personality or memory changes, rapid heart rate, shortness of breath, tingling and numbness of hands and feet, cold feet and hands, tongue problems- normally swollen and red -- and unsteadiness while walking, especially in the dark.
Diagnosis & Treatment of Pernicious Anemia
As mentioned above, pernicous anemia is often mis- diagnosed. If any of your family members had the condition, and you have any of the symptoms, special screening is recommended to ensure early diagnosis. You will need full blood tests and sometimes urine tests.
If the condition is simply caused by the lack of vitamin B-12 then eating foods rich in Vitamin B-12, or taking a course of B-12 supplements or injections will rectify the problem.
Usually strong injections of vitamin B-12 are given once a week for 5 or 6 weeks and then once a month. A nasal spray and oral dose are also available but not as widely used as the injections.
If the pernicious anemia is caused by an underlying condition then that must be treated also to successful fight the deficiency.
Here is one last important thing to remember in your treatment for pernicious anemia. Don't stop. Once you have received treatment and the condition disappears, you should continue taking Vitamin B-12 unless your doctor indicates otherwise, because pernicious anemia can reoccur.
Fortunately, unlike iron or other vitamins and minerals, B-12 has no established toxicity for higher doses or prolonged use.