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Keshan disease

Keshan disease is a congestive cardiomyopathy caused by a combination of dietary deficiency of selenium and the presence of a mutated strain of Coxsackievirus, named after Keshan County of Heilongjiang province, Northeast China, where symptoms were first noted. These symptoms were later found prevalent in a wide belt extending from northeast to southwest China, all due to selenium-deficient soil. The disease peaked in 1960–1970, killing thousands of people.[1][2]

Keshan disease
SpecialtyCardiology
SymptomsCardiac arrhythmia, dizziness, fast breathing, shortness of breath
CausesSelenium deficiency

Often fatal, the disease affects children and women of child-bearing age, characterized by heart failure and pulmonary edema. Over decades, supplementation with selenium reduced this condition.[3]

It had been linked to the coxsackie B virus. Current research suggests that the lack of selenium results in a more virulent strain of the coxsackievirus becoming the dominant viral species present in the population of virus, but the mechanism of this selection event is unclear.[4][5]

Keshan disease can also lead to higher rates of cancer, cardiovascular disease, hypertension, and strokes. In addition, an individual can experience eczema, psoriasis, arthritis, cataracts, alcoholism, and infections.[citation needed]

Signs and symptoms edit

There are four main types of Keshan disease: acute, subacute, chronic, and latent.

Some signs and symptoms of acute Keshan disease include dizziness, malaise, nausea, chills, loss of appetite, projectile vomiting, pallor, low arterial blood pressure (less than 80/60 mmHg), dyspnea, precardiac (anterior to the heart) or substernal (behind or below the sternum) discomfort, cardiogenic shock, and constricted veins in one's extremities.

Some signs and symptoms of subacute Keshan disease include malaise, restlessness, gallop rhythm, facial edema, heart dilation, and cardiac shock.

Some signs and symptoms of chronic Keshan disease include palpitations, dyspnea, cough (with blood), pain in one's right upper quadrant, edema, oliguria, enlargement of the heart, systolic murmur, gallop rhythm, and hepatomegaly.

Some signs and symptoms of latent Keshan disease include dizziness, fatigue, palpitations, and mild enlargement of the heart.[6]

Diagnosis edit

Prevention edit

It is hard to consider Keshan disease extremely preventable because the only way to ensure that the individual is getting enough selenium would be to test the soil in the area. However, one way that selenium intake can be improved is to increase intake of foods that are rich with selenium. Examples include Brazil nuts, onions, canned tuna, beef, cod, turkey, chicken breast, enriched pasta, egg, cottage cheese, oatmeal, white or brown rice, and garlic. If the individual lives in an area that does not have selenium enriched soil, dietary supplementation should be considered. To determine whether or not an individual is selenium deficient, blood testing is performed.[citation needed]

Treatments edit

The treatment for Keshan disease is selenium supplementation. The recommended amounts are fifty-five micrograms of selenium per day for adult men and women, sixty micrograms a day for women during pregnancy and seventy micrograms per day for women after pregnancy. A doctor may insist that if a man is sexually active, he may have to take up to seventy micrograms of selenium per day. A doctor may also recommend that the individual take vitamin E; selenium and vitamin E are medically linked and seem to work together. An individual will also be advised to have a diet that includes seafood, meats such as kidney, and liver, and some grains and seeds; all of these are high in selenium. Brewer's yeast and wheat germ both contain high levels of selenium. Garlic, onions, mushroom, broccoli, tomatoes, radishes, and Swiss chard may be good sources of selenium if the soil in which they are grown contains it. An individual will have to be monitored once they begin to take the selenium supplements, due to the fact that too much of it can cause balding, intestinal distress, weakness, and slow mental functioning. Individuals in China with the disease treat it with a herb called Astragalus, which accumulates selenium from the soil.[7]

Living with Keshan disease edit

An individual will most likely be prescribed selenium supplements (in the form of selenomethionine) or have injections of this mineral. Other recommendations for managing Keshan disease are to increase consumption of foods rich in selenium in addition to supplements, avoid alcohol, monitor side effects to medications, and increase sleep. Cardiac surgery (implants, stents or full heart transplant) may be advised.[8]

See also edit

References edit

  1. ^ "C&en: It's Elemental: The Periodic Table - Selenium". from the original on 2018-06-30. Retrieved 2010-06-21.
  2. ^ Westgate, Tom (1 November 2006). . Education in Chemistry. Royal Society of Chemistry. Archived from the original on 27 June 2019. Retrieved 30 June 2018.
  3. ^ "Office of Dietary Supplements - Selenium". from the original on 2010-10-02. Retrieved 2010-06-19.
  4. ^ Beck MA, Levander OA, Handy J (May 2003). "Selenium deficiency and viral infection". J. Nutr. 133 (5 Suppl 1): 1463S–7S. doi:10.1093/jn/133.5.1463S. PMID 12730444.
  5. ^ Ren LQ, Li XJ, Li GS, Zhao ZT, Sun B, Sun F (November 2004). "Coxsackievirus B3 infection and its mutation in Keshan disease". World J. Gastroenterol. 10 (22): 3299–302. doi:10.3748/wjg.v10.i22.3299. PMC 4572299. PMID 15484304.
  6. ^ Shi, Y; Yang, W; Tang, X; Yan, Q; Cai, X; Wu, F (2021). "Keshan Disease: A Potentially Fatal Endemic Cardiomyopathy in Remote Mountains of China". Frontiers in Pediatrics. 9: 576916. doi:10.3389/fped.2021.576916. PMC 7985175. PMID 33768083.
  7. ^ "Vitamins Diary". VitaminsDiary.com. from the original on 2010-11-21. Retrieved 2011-11-08.
  8. ^ "Vital Health Zone". from the original on 2016-05-30. Retrieved 2011-11-08.

External links edit

keshan, disease, congestive, cardiomyopathy, caused, combination, dietary, deficiency, selenium, presence, mutated, strain, coxsackievirus, named, after, keshan, county, heilongjiang, province, northeast, china, where, symptoms, were, first, noted, these, symp. Keshan disease is a congestive cardiomyopathy caused by a combination of dietary deficiency of selenium and the presence of a mutated strain of Coxsackievirus named after Keshan County of Heilongjiang province Northeast China where symptoms were first noted These symptoms were later found prevalent in a wide belt extending from northeast to southwest China all due to selenium deficient soil The disease peaked in 1960 1970 killing thousands of people 1 2 Keshan diseaseSpecialtyCardiologySymptomsCardiac arrhythmia dizziness fast breathing shortness of breathCausesSelenium deficiency Often fatal the disease affects children and women of child bearing age characterized by heart failure and pulmonary edema Over decades supplementation with selenium reduced this condition 3 It had been linked to the coxsackie B virus Current research suggests that the lack of selenium results in a more virulent strain of the coxsackievirus becoming the dominant viral species present in the population of virus but the mechanism of this selection event is unclear 4 5 Keshan disease can also lead to higher rates of cancer cardiovascular disease hypertension and strokes In addition an individual can experience eczema psoriasis arthritis cataracts alcoholism and infections citation needed Contents 1 Signs and symptoms 2 Diagnosis 3 Prevention 4 Treatments 4 1 Living with Keshan disease 5 See also 6 References 7 External linksSigns and symptoms editThere are four main types of Keshan disease acute subacute chronic and latent Some signs and symptoms of acute Keshan disease include dizziness malaise nausea chills loss of appetite projectile vomiting pallor low arterial blood pressure less than 80 60 mmHg dyspnea precardiac anterior to the heart or substernal behind or below the sternum discomfort cardiogenic shock and constricted veins in one s extremities Some signs and symptoms of subacute Keshan disease include malaise restlessness gallop rhythm facial edema heart dilation and cardiac shock Some signs and symptoms of chronic Keshan disease include palpitations dyspnea cough with blood pain in one s right upper quadrant edema oliguria enlargement of the heart systolic murmur gallop rhythm and hepatomegaly Some signs and symptoms of latent Keshan disease include dizziness fatigue palpitations and mild enlargement of the heart 6 Diagnosis editThis section is empty You can help by adding to it October 2017 Prevention editIt is hard to consider Keshan disease extremely preventable because the only way to ensure that the individual is getting enough selenium would be to test the soil in the area However one way that selenium intake can be improved is to increase intake of foods that are rich with selenium Examples include Brazil nuts onions canned tuna beef cod turkey chicken breast enriched pasta egg cottage cheese oatmeal white or brown rice and garlic If the individual lives in an area that does not have selenium enriched soil dietary supplementation should be considered To determine whether or not an individual is selenium deficient blood testing is performed citation needed Treatments editThe treatment for Keshan disease is selenium supplementation The recommended amounts are fifty five micrograms of selenium per day for adult men and women sixty micrograms a day for women during pregnancy and seventy micrograms per day for women after pregnancy A doctor may insist that if a man is sexually active he may have to take up to seventy micrograms of selenium per day A doctor may also recommend that the individual take vitamin E selenium and vitamin E are medically linked and seem to work together An individual will also be advised to have a diet that includes seafood meats such as kidney and liver and some grains and seeds all of these are high in selenium Brewer s yeast and wheat germ both contain high levels of selenium Garlic onions mushroom broccoli tomatoes radishes and Swiss chard may be good sources of selenium if the soil in which they are grown contains it An individual will have to be monitored once they begin to take the selenium supplements due to the fact that too much of it can cause balding intestinal distress weakness and slow mental functioning Individuals in China with the disease treat it with a herb called Astragalus which accumulates selenium from the soil 7 Living with Keshan disease edit An individual will most likely be prescribed selenium supplements in the form of selenomethionine or have injections of this mineral Other recommendations for managing Keshan disease are to increase consumption of foods rich in selenium in addition to supplements avoid alcohol monitor side effects to medications and increase sleep Cardiac surgery implants stents or full heart transplant may be advised 8 See also editSelenium deficiency Kashin Beck diseaseReferences edit C amp en It s Elemental The Periodic Table Selenium Archived from the original on 2018 06 30 Retrieved 2010 06 21 Westgate Tom 1 November 2006 A little selenium goes a long way Education in Chemistry Royal Society of Chemistry Archived from the original on 27 June 2019 Retrieved 30 June 2018 Office of Dietary Supplements Selenium Archived from the original on 2010 10 02 Retrieved 2010 06 19 Beck MA Levander OA Handy J May 2003 Selenium deficiency and viral infection J Nutr 133 5 Suppl 1 1463S 7S doi 10 1093 jn 133 5 1463S PMID 12730444 Ren LQ Li XJ Li GS Zhao ZT Sun B Sun F November 2004 Coxsackievirus B3 infection and its mutation in Keshan disease World J Gastroenterol 10 22 3299 302 doi 10 3748 wjg v10 i22 3299 PMC 4572299 PMID 15484304 Shi Y Yang W Tang X Yan Q Cai X Wu F 2021 Keshan Disease A Potentially Fatal Endemic Cardiomyopathy in Remote Mountains of China Frontiers in Pediatrics 9 576916 doi 10 3389 fped 2021 576916 PMC 7985175 PMID 33768083 Vitamins Diary VitaminsDiary com Archived from the original on 2010 11 21 Retrieved 2011 11 08 Vital Health Zone Archived from the original on 2016 05 30 Retrieved 2011 11 08 External links edit Retrieved from https en wikipedia org w index php title Keshan disease amp oldid 1193137939, wikipedia, wiki, book, books, library,

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