Myositis is inflammation or swelling of the muscles. Injury, medicines, infection, or an immune disorder can lead to myositis. It is a documented side effect of the lipid-lowering drugs statins and fibrates.

Elevation of creatine kinase in blood is indicative of myositis.

Polymyositis and dermatomyositis are first treated ...

myositis

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Author: Yana Nencheva, Biochemist, PhD candidate in Biophysics

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Whether you suffer from an autoimmune disease or your loved one does, know that this is not a sentence, it is not a contagious disease, it is not something shameful and it is not something that determines what kind of person you are.

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In addition to personal discomfort, very often this group of diseases affects the way we look (psoriasis, vitiligo) or our lifestyle (type 1 diabetes, celiac disease). Every child will stare if your skin looks weird and every chef will get annoyed if you have strict food requirements. That is why we need to be informed and our society to speak openly and freely about autoimmune diseases.

What-is-autoimmune-disease

What is autoimmune disease

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Normally, the immune system sends an "army of militant" cells to recognize, attack and destroy foreign invaders (e.g. <a href="/p/kakva_ie_razlikata_miezhdu_baktieriia_i_virus_i_kakvo_tochno_ie_klietkata_f496ccd4_1ffa_42b5_bd7a_73a56893200d" target="_blank" rel="noreferrer">viruses and</a> bacteria [ref.1]) trying to"conquer" our body. The terrible thing about autoimmune diseases is that this powerful army makes a mistake at the first stage of "hostilities" - it does not recognize its own cells and treats them as enemy. Usually the immune system unmistakably makes the difference between foreign and own structures, but in autoimmune diseases, proteins called autoantibodies that attack our own healthy cells are released.

What-is-the-frequency-of-autoimmune-diseases

What is the frequency of autoimmune diseases

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On the other hand,international statistics show that not3% but 7%of patients in the<a href="https://pathology.jhu.edu/autoimmune/prevalence" target="_blank" rel="noopener">U.S.</a>suffer from this type of disease [<a href="https://www.statista.com/statistics/418328/diagnosed-autoimmune-conditions-prevalence-in-selected-countries/" target="_blank" rel="noopener">ref. 3</a>].

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Johns Hopkins explains the problem: not every country has a mechanism for continuously collecting data on the frequency and prevalence of autoimmune diseases, as is the case in infectious and cancer cases, the US is one of the countries that does not have such a mechanism, and for this reason the scientists of this university have collected data from countries that have a well-structured database in this regard (the Nordic countries e.g.)<a href="https://pathology.jhu.edu/autoimmune/prevalence" target="_blank" rel="noopener"></a>and have assessed theirprevalence.

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As it becomes clear, Statistical studies in the field compared to other types of diseases are limited, but case studies and prevalence have increased significantly over the past <a href="https://www.alliedacademies.org/proceedings/the-world-incidence-and-prevalence-of-autoimmune-diseases-is-increasing-2449.html" target="_blank" rel="noopener">30</a> years.

Who-is-at-risk-of-autoimmune-diseases-and-what-are-the-causes

Who is at risk of autoimmune diseases and what are the causes

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The majority of autoimmune diseases are more common in women than men, and there are also some, such as type 1 diabetes mellitus, which affect both sexes equally. The ten most common diseases in the US, and it can be said around the world (with a different share), are presented on the scheme. As you can see, in yellow is the proportion of those who fall ill of the fair sex compared to those of the strong - in blue.

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However, in order to answer the question of who is most at risk, it is not correct to say that these are women. We need to know the causes of the occurrence of the autoimmune disease in order to determine whether we and our relatives are at risk. However, there is no firm opinion on this topic yet. Statistics look at some dependencies:

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<ul>
<li style="font-weight: 400;">Some autoimmune diseases are more common in certain ethnic groups. For example, lupus affects more African-Americans and Latino groups than Caucasians.</li>
<li style="font-weight: 400;">Multiple sclerosis and lupus often "run" on families. However, not every family member will necessarily fall ill. Often it is not a specific disease, but a sensitivity to autoimmune diseases in general.</li>
<li style="font-weight: 400;">The incidence of autoimmune diseases is increasing and researchers believe that environmental factors such as certain infections, exposure to toxic chemicals or solvents have something in common.</li>
<li style="font-weight: 400;">It is also believed that the intake of foods high in fat, sugar and chemicals in them is associated with a prerequisite for inflammation, which can cause an immune response.</li>
<li style="font-weight: 400;">A study in 2015 focused on another theory called "hygiene of hygiene".</li>
</ul>

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Let's stress that: Researchers don't know exactly what causes autoimmune diseases, and factors such as genetic predisposition, diet, infectionsand exposure to chemicals are currently only hypothetical [<a href="https://www.healthline.com/health/autoimmune-disorders#causes" target="_blank" rel="noopener">ref. 5</a>].

What-are-the-10-most-common-autoimmune-diseases

What are the 10 most common autoimmune diseases

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These are the 10 most common autoimmune diseases. Some of them target only one organ (Type 1 diabetes, which damages the pancreas), while others (Systemic Lupus Erythematosus (SLE)) affect the whole body.

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<ol>
<li>
<h3> <a href="https://www.bioseek.eu/en/eng/research/search?q=%D0%A5%D0%B0%D1%88%D0%B8%D0%BC%D0%BE%D1%82%D0%BE&amp;p=1&amp;st=1&amp;tp=9" target="_blank" rel="noopener"> Hashimoto's thyroiditis</a></h3>
</li>
</ol>

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This is an autoimmune disease in which the thyroid gland is attacked. lymphocytic thyroiditis) the production of hormones by the thyroid gland gradually slows down and reaches their deficiency.

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Symptoms: increased weight, constant fatigue, hair loss, cold sensitivity and swelling of the thyroid gland (goiter).

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 Hashimoto: is thyroid surgery a solution

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<ol>
<li>
<h3> <a href="https://www.bioseek.eu/en/eng/research/search?q=DISEASE%3AMESH%3AD006111&amp;t=2&amp;o=0&amp;p=1&amp;st=1&amp;tp=9" target="_blank" rel="noopener"> Graves' disease</a></h3>
</li>
</ol>

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Graves' disease (also called Bazedova disease) attacks the thyroid gland, causing it to produce too many hormones.

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Since these hormones affect metabolism, their excessive secretion (release into the body) leads to symptoms such as nervousness, increased heart rate, heat intolerance, weight loss and protrusion of the eyes outside the orbit (exophthalm). The last symptom (exophthalm) is optional, and studies show that it is observed in 30% of those who fall ill. Apart from this disease, the appearance of exophthalm can have a number of other causes.

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<ol>
<li>
<h3> <a href="https://www.bioseek.eu/en/eng/research/search?q=%D0%A0%D0%B5%D0%B2%D0%BC%D0%B0%D1%82%D0%BE%D0%B8%D0%B4%D0%B5%D0%BD%20%D0%B0%D1%80%D1%82%D1%80%D0%B8%D1%82&amp;p=1&amp;st=1&amp;tp=9" target="_blank" rel="noopener">Rheumatoid arthritis</a> (RA)</h3>
</li>
</ol>

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In rheumatoid arthritis (RA), the immune system attacks the joints, leading to their inflammation. It should be distinguished from osteoporosis, which occurs with age. In contrast, RA can occur in young individuals even under the age of 30.

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Symptoms are associated with the signs of inflammation itself - redness, warming, pain, impaired function (in this case - stiffness in the joints).

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Psoriasis and psoriatic arthritis - substance, causes and treatment

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<ol>
<li>
<h3> <a href="https://www.bioseek.eu/en/eng/research/search?q=Vitiligo&amp;p=1&amp;st=1&amp;tp=9&amp;s=x" target="_blank" rel="noopener"> Vitiligo</a></h3>
</li>
</ol>

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Vitiligo is an autoimmune condition in which pale white spots develop on the skin. The immune system attacks the cells in the skin (melanocytes) that produce its pigment - melanin. This leads to the demise of melanocytes or deprives them of their functions, and for this reason, discolored spots appear on the skin.

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It can affect any area of the skin, but most often affects the face, neck, hands, skin folds. It does not cause discomfort to the skin, such as dryness, but sometimes the stains can er. The condition varies in each person, some have only a few small spots, and in others they are larger. It is impossible to predict how much skin will be affected.

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Often, but not necessarily, it also occurs with other autoimmune conditions, such as hyperthyroidism [<a href="https://www.nhs.uk/conditions/vitiligo/" target="_blank" rel="noopener">ref. 5</a>].

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<ol>
<li>
<h3> <a href="https://www.bioseek.eu/en/eng/research/search?q=DISEASE%3AMESH%3AD003922&amp;t=2&amp;o=0&amp;p=1&amp;st=1&amp;tp=9&amp;s=x" target="_blank" rel="noopener"> Type 1 diabetes</a></h3>
</li>
</ol>

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Type 1 diabetes is an autoimmune disease that affects beta cells (in the pancreas) that are responsible for producing the hormone insulin. This process has been going on asymptomlessly for months and years.

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When there are already symptoms, it has already destroyed a large part of these cells (sometimes 90%). The condition is accompanied by high blood sugar, damage to blood vessels, kidneys, vision and nerve fibers [<a href="/p/vsichko_za_diabiet_tip_1_na_iedno_miasto_751da342_2d55_43af_ae7f_1e1c89cd3800" target="_blank" rel="noreferrer">ref. 6</a>].

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<ol>
<li>
<h3> <a href="https://www.bioseek.eu/en/eng/research/search?q=%D0%9F%D0%B5%D1%80%D0%BD%D0%B8%D1%86%D0%B8%D0%BE%D0%B7%D0%BD%D0%B0%D1%82%D0%B0%20%D0%B0%D0%BD%D0%B5%D0%BC%D0%B8%D1%8F&amp;p=1&amp;st=1&amp;tp=9&amp;s=x" target="_blank" rel="noopener"> Pericious anemia</a></h3>
</li>
</ol>

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Pernicious anemia is anemia with vitamin B12 deficiency (cobalamin). The reason is an autoimmune process that makes a person unable to produce the substance needed to absorb vitamin B12 into the small intestine. In turn, B12 is necessary for the proper production and functioning of red blood cells in the body.

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Symptoms are pale, yellow skin, lack of tone, easy tiredness, painful tongue and others [<a href="https://www.healthline.com/health/pernicious-anemia" target="_blank" rel="noopener">ref. 7</a>].

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<ol>
<li>
<h3> <a href="https://www.bioseek.eu/en/eng/research/search?q=%D0%9C%D0%BD%D0%BE%D0%B6%D0%B5%D1%81%D1%82%D0%B2%D0%B5%D0%BD%D0%B0%20%D1%81%D0%BA%D0%BB%D0%B5%D1%80%D0%BE%D0%B7%D0%B0&amp;p=1&amp;st=1&amp;tp=9&amp;s=x" target="_blank" rel="noopener">Multiple sclerosis</a> (MS)</h3>
</li>
</ol>

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Multiple sclerosis (MS) is an autoimmune disease that affects the brain and spinal cord. It destroys the protective myelin sheath of the nerves and, accordingly, damages communication between the brain and other parts of our body.

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Symptoms are numbness, weakness, easy tiredness, movement problems,etc.

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<a href="/p/novi_podkhodi_za_liechieniie_na_mnozhiestviena_sklieroza_v_ievropa_753863ec_1354_4180_85ad_404aabc37138" target="_blank" rel="noreferrer">New approaches to the treatment of multiple sclerosis in Europe</a>

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<a href="/p/17_dostpni_bilki_v_pomoshch_na_stradashchitie_ot_mnozhiestviena_sklieroza_e283f90a_9560_4d6e_9921_d3260c14b70c" target="_blank" rel="noreferrer">17 affordable herbs to help multiple sclerosis sufferers</a>

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<ol>
<li>
<h3> <a href="https://www.bioseek.eu/en/eng/research/search?q=lupus&amp;p=1&amp;st=1&amp;tp=9&amp;s=x" target="_blank" rel="noopener">Systemic lupus erythematosus </a> (SLE)</h3>
</li>
</ol>

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When the disease was discovered in 1800, systemic lupus erythematosus was thought to be a skin disease, judging by the rash, which is the most prominent symptom. However, the disease can affect any organ or system of organs, most often these are joints, kidneys, brain and heart.

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Joint pain, fatigue and rashes are among the most common symptoms [<a href="https://www.healthline.com/health/systemic-lupus-erythematosus" target="_blank" rel="noopener">ref. 9</a>].

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<ol>
<li>
<h3> <a href="https://www.bioseek.eu/en/eng/research/search?q=Sjogren%27s%20syndrome&amp;p=1&amp;st=1&amp;tp=9&amp;s=x" target="_blank" rel="noopener"> Sjogren's syndrome</a></h3>
</li>
</ol>

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Sjogren's syndrome is an autoimmune condition that attacks the glands. It can occur at any age, but most often affects elderly women. Often the syndrome develops alongside another autoimmune disease, such as rheumatoid arthritis or lupus.

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Symptoms are dry eyes, mouth and vary in appearance and intensity. Many people are able to lead a normal lifestyle.

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Treatment is associated with alleviating the symptoms of dry eyes, mouth and, accordingly, preventing complications such as infection and dentaldiseases. Therefore,regular medical care and follow-up are important for all patients [<a href="https://www.rheumatology.org/I-Am-A/Patient-Caregiver/Diseases-Conditions/Sjogrens-Syndrome" target="_blank" rel="noopener">ref. 10</a>].

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<ol>
<li>
<h3> <a href="https://www.bioseek.eu/en/eng/research/search?q=miositis&amp;p=1&amp;st=1&amp;tp=9&amp;s=x" target="_blank" rel="noopener"> Myositis</a></h3>
</li>
</ol>

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Myositis is an inflammation of the muscles. Inflammation directly affects muscle fibers. The disease can be triggered by autoimmune diseases such as lupus, rheumatoid arthritis and others.

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Among the symptoms of myositis are fatigue after walking or standing, problem with swallowing or <a href="https://www.health.harvard.edu/a_to_z/myositis-a-to-z" target="_blank" rel="noopener"></a>breathing.