Familial Mediterranean fever is usually inherited in an autosomal recessive pattern , which means both copies of the MEFV gene in each cell have variants.

Is Familial Mediterranean Fever a primary or secondary immunodeficiency?

Primary Immunodeficiencies FMF is an autosomal recessive disease that occurs preferentially in people of Middle Eastern ethnic backgrounds.

What triggers FMF attacks?

The attacks of Familial Mediterranean Fever can have a trigger, as infections, stress, menses, exposure to cold, fat-rich food, drugs. The diagnosis needs a clinical definition of the disease and a genetic confirmation.

What type of mutation is FMF?

FMF is a recessive genetic disease associated with missense and nonsense mutations in the MEFV gene, which is located on the short arm of chromosome 16. This gene codes for the protein known as pyrin or marenostrin.

Is Mediterranean Fever an autoimmune disease?

As opposed to an autoimmune disease in which the immune system attacks its own cells, FMF is an autoinflammatory disease in which the innate immune system (the body’s first-line defense) simply doesn’t work as it is should.

What is FMF in pregnancy?

FMF. This stands for ‘fetal movement felt‘. Your midwife or doctor will write this when they have felt your baby moving.

How is familial Mediterranean fever inherited?

Familial Mediterranean fever is usually inherited in an autosomal recessive pattern , which means both copies of the MEFV gene in each cell have variants.

Why is it called Mediterranean fever?

Familial Mediterranean feverSpecialtyRheumatology, Immunology

Is Mediterranean fever genetic?

Familial Mediterranean fever is caused by a gene change (mutation) that’s passed from parents to children. The gene change affects the function of an immune system protein called pyrin, causing problems in regulating inflammation in the body. In people with FMF , change occurs in a gene called MEFV.

Does FMF cause infertility?

FMF is also associated with subfertility. In females, infertility was mainly related to oligomenorrhea although the causes remain unclear. In male FMF patients, progression of the disease may induce testicular impairment, consequently affecting spermatogenesis.

Article first time published on

Does FMF get worse with age?

However the frequency of FMF attacks as well as daily colchicine dose decrease as the patients get older. With well designed trials stopping colchicine treatment may be considered in a subgroup of patients after 50 years of age.

Is FMF life threatening?

With early and regular treatment, individuals with FMF can live a normal lifespan and may even be free of symptoms. The disease has the potential to be life-threatening if the patient develops kidney failure (which may result when a person is untreated or does not respond to treatment).

Does colchicine affect fertility?

Conclusion: According to the literature selected, colchicine use has no demonstrable negative effect on fertility. If untreated, FMF itself can lead to amyloid deposits in the testis and ovary, resulting in infertility.

Can you grow out of Familial MEditerranean Fever?

Attacks of fever in FMF are usually accompanied by symptoms of inflammation in one or more sites. These may include abdominal pain, chest pain, joint pain and skin rashes, among others. It is a life-long disease and there is no known cure.

How can you prevent familial MEditerranean fever?

There’s no cure for familial Mediterranean fever. However, treatment can help relieve symptoms, prevent attacks and prevent complications caused by inflammation. Medications used to relieve symptoms and prevent attacks of FMF include: Colchicine.

How does familial MEditerranean fever affect the immune system?

FMF is caused by mutation in the MEFV gene, which encodes a protein called pyrin found in white blood cells. The mutated protein disrupts the immune system and causes inflammation. Researchers think that MEFV gene mutations may be a factor in other autoimmune diseases, including rheumatoid arthritis.

How does FMF cause amyloidosis?

CONCLUSIONS Amyloidosis is highly associated with the 694 substitution in the MEFV gene causing FMF. It seems that genetic predisposition plays a part in the development of this complication of FMF.

Who treats FMF?

A mutation of the MEFV gene on chromosome 16, which codes for protein pyrin, is associated with the disease pathogenesis. Colchicine, which has been prescribed to treat FMF since 1972, remains the mainstay for treatment although its use has been complicated by resistance and intolerance in a minority of patients.

Is colchicine safe in pregnancy?

Conclusions: Colchicine therapy did not significantly increase the incidence of foetal malformations or miscarriage when taken during pregnancy. Colchicine therapy for FMF should not be withheld on this basis during pregnancy.

How many people in the world have familial MEditerranean FeVer?

What is Familial Mediterranean Fever? FMF is considered a rare disease worldwide. However, it is very common in people of Sephardic (non-Ashkenazi) Jewish, Armenian, Arab and Turkish heritage. Among people with these backgrounds, about 1 in 200 has FMF.

What is an autosomal recessive disorder?

Print. To have an autosomal recessive disorder, you inherit two mutated genes, one from each parent. These disorders are usually passed on by two carriers. Their health is rarely affected, but they have one mutated gene (recessive gene) and one normal gene (dominant gene) for the condition.

How long does it take for colchicine to work for FMF?

Colchicine starts to work after around 30 minutes to 2 hours. However, it may take a day or two before you notice your inflammation and pain starts to get better. If you’re taking it to prevent flare-ups of FMF, you may not feel any different.

At what age is FMF diagnosed?

The disease is usually diagnosed before 20 years of age. Symptoms related to FMF are noted when children become more verbal, usually after 2 years of age.

Can a carrier of familial Mediterranean fever have symptoms?

Many carriers for familial Mediterranean fever are asymptomatic their entire lives. However, studies have shown that some carriers can have symptoms ranging from classic to mild familial Mediterranean fever.

Does gout affect sperm quality?

In contrast, high levels of uric acid may induce adverse effects to sperm function, at least in part, by reducing the activity of vital enzymes in spermatozoa.

Does colchicine cause azoospermia?

8 However, later observations disclosed that, as many as 20% of male FMF patients receiving long term colchicine therapy may develop fertility problems associated with either azoospermia or impairment of sperm penetration.

What are the side effects of colchicine?

Diarrhea, nausea, cramping, abdominal pain, and vomiting may occur. If any of these effects persist or worsen, tell your doctor or pharmacist promptly.

Can FMF cause anemia?

Anemia detected in FMF patients was found related to iron status more than interleukins. Colchicine therapy had a positive effect on anemia as well as on disease activity. Resolution of symptoms of FMF occurred with correction of the anemia, if the patient ESR values also decreased on colchicine therapy.