Overview

Celiac disease is an autoimmune disorder where consuming gluten—a protein found in wheat, barley, and rye—triggers an immune response that damages the small intestine. Common symptoms include diarrhea, bloating, fatigue, and weight loss, although some people may experience no symptoms at all. It can occur at any age but is most commonly diagnosed in children and adults between 30 and 50 years old. While celiac disease is not typically life-threatening, untreated cases can lead to serious complications such as malnutrition and increased risk of certain cancers. The primary treatment is a strict, lifelong gluten-free diet, which helps manage symptoms and promotes intestinal healing.

Short Overview

Symptoms

Symptoms of Celiac disease can include digestive problems such as diarrhea, constipation, and bloating, along with nausea and vomiting. Many individuals report feeling tired and fatigued due to the body's inability to absorb nutrients properly, which can also lead to unintentional weight loss. Anemia, often resulting from iron deficiency, is common and can cause weakness and shortness of breath. A specific itchy and blistering skin rash, known as dermatitis herpetiformis, may appear, typically on elbows, knees, and buttocks. Other symptoms include joint pain, frequent headaches, mouth ulcers, numbness or tingling in the hands and feet, and weakened bones due to poor calcium absorption.

Outlook and prognosis

With proper management through a strict gluten-free diet, individuals with Celiac disease can lead healthy lives and prevent long-term complications. Adherence to this diet typically results in symptom improvement and healing of the intestinal lining. However, ongoing medical follow-up is essential to monitor for potential nutritional deficiencies and associated conditions.

Causes and Risk Factors

Celiac disease is triggered by an immune response to gluten, a protein in wheat, barley, and rye, with genetic predisposition being a major factor, as most affected individuals possess specific genes that heighten their risk. Environmental influences, including early gluten exposure and certain infections, may also play a role in its onset. A family history of the condition and the presence of other autoimmune disorders further elevate the risk of developing celiac disease.

Genetic influences

Genetics play a crucial role in Celiac disease, with most individuals affected carrying specific genetic markers known as HLA-DQ2 or HLA-DQ8. However, having these genetic markers does not guarantee the development of the disease, as they are also present in a significant portion of the general population without symptoms. Genetic variations beyond these markers can influence the risk and severity of the disease, but environmental factors, such as diet, also contribute significantly. Understanding the genetic basis helps in identifying individuals at risk and can guide early interventions.

Diagnosis

Celiac disease is diagnosed through blood tests that detect specific antibodies, such as tissue transglutaminase (tTG) and endomysial antibodies (EMA), which are typically present in affected individuals. If these blood tests indicate a likelihood of the disease, a small intestine biopsy is often performed to confirm the diagnosis by checking for damage to the villi. Genetic testing may also be used to identify genes like HLA-DQ2 and HLA-DQ8, which are associated with a predisposition to the disease, although their presence does not guarantee its development.

Treatment and Drugs

Currently, there are no specific drugs approved to treat Celiac disease. The primary treatment is a strict gluten-free diet, which helps manage symptoms and heal intestinal damage. However, research is ongoing to develop medications that can assist in managing the condition.

Symptoms

Celiac disease presents a variety of symptoms that can affect different parts of the body. These symptoms can vary greatly from person to person and may not always be related to the digestive system. Some individuals may experience severe symptoms, while others may have mild or no symptoms at all. Recognizing these symptoms is crucial for diagnosis and management.

  • Digestive Problems: Common digestive issues include diarrhea, constipation, and bloating. Some individuals may also experience nausea and vomiting. These symptoms can lead to discomfort and affect daily life.

  • Fatigue: Many individuals with Celiac disease report feeling tired and fatigued. This can be due to the body's inability to absorb nutrients properly. Fatigue can impact concentration and overall energy levels.

  • Weight Loss: Unintentional weight loss can occur due to malabsorption of nutrients. This symptom can be concerning and may lead to further health complications. Monitoring weight changes is important for managing the disease.

  • Anemia: Anemia, often due to iron deficiency, is a common symptom. It can cause feelings of weakness and shortness of breath. Anemia results from the body's inability to absorb iron effectively.

  • Skin Rash: A specific skin rash known as dermatitis herpetiformis can appear. This rash is itchy and blistering, often found on elbows, knees, and buttocks. It is directly linked to gluten sensitivity.

  • Joint Pain: Some individuals experience joint pain and stiffness. This can affect mobility and quality of life. Joint pain may be mistaken for other conditions.

  • Headaches: Frequent headaches or migraines are reported by some individuals. These can be debilitating and affect daily activities. The exact cause of headaches in Celiac disease is not fully understood.

  • Mouth Ulcers: Painful sores or ulcers may develop inside the mouth. These can make eating and speaking uncomfortable. Mouth ulcers are a less common but notable symptom.

  • Numbness and Tingling: Some individuals experience numbness or tingling in the hands and feet. This symptom is related to nerve damage caused by nutrient deficiencies. It can be mistaken for other neurological conditions.

  • Bone Loss: Celiac disease can lead to weakened bones or osteoporosis. This is due to poor calcium absorption. Bone health should be monitored in individuals with Celiac disease.

How people usually first notice

Common initial signs of Celiac disease include persistent diarrhea, bloating, and abdominal pain, often accompanied by fatigue and unexplained weight loss. Some individuals may experience skin rashes, mouth sores, or anemia due to nutrient malabsorption. In children, symptoms might also include delayed growth and irritability.

Types of Celiac disease

Celiac disease presents in several forms, each with distinct symptoms. These variations can affect individuals differently, leading to a range of clinical presentations. Understanding these types is crucial for accurate diagnosis and management. The symptoms can vary from digestive issues to more subtle signs.

Classical Celiac Disease

Characterized by digestive symptoms such as diarrhea, abdominal pain, and bloating. It often leads to malnutrition due to poor absorption of nutrients. Children may experience growth problems and delayed puberty.

Non-Classical Celiac Disease

Presents with symptoms not primarily related to the digestive system. Common signs include anemia, fatigue, and joint pain. Skin rashes and dental enamel defects may also occur.

Silent Celiac Disease

Individuals do not exhibit noticeable symptoms despite having intestinal damage. It is often discovered through screening of at-risk individuals. Long-term health issues may arise if left untreated.

Latent Celiac Disease

Characterized by a normal small intestine but with a genetic predisposition to develop the disease. Symptoms may appear later in life, triggered by factors such as stress or infection. Regular monitoring is recommended for those with a family history.

Refractory Celiac Disease

Occurs when symptoms persist despite following a strict gluten-free diet. It is a rare and severe form that may require additional medical intervention. Patients may experience severe malabsorption and weight loss.

Did you know?

Certain genetic variations, particularly in the HLA-DQ2 and HLA-DQ8 genes, are linked to symptoms like abdominal pain, bloating, and diarrhea. These genes influence the immune system's response to gluten, leading to inflammation and digestive issues.

doctor_quote

Dr. Wallerstorfer

Causes and Risk Factors

Celiac disease is primarily caused by an immune reaction to gluten, a protein found in wheat, barley, and rye. Genetic factors play a significant role, with most individuals having specific genes that increase susceptibility. Environmental factors, such as early exposure to gluten and certain infections, may also contribute to the development of the disease. Family history is a notable risk factor, as having a first-degree relative with celiac disease increases the likelihood of developing it. Additionally, other autoimmune disorders are associated with a higher risk of celiac disease.

Environmental and Biological Risk Factors

Celiac disease is influenced by various environmental and biological factors that can trigger or exacerbate the condition. These factors include the timing and amount of gluten introduction in the diet, certain infections, and the state of the gut microbiome. Additionally, factors such as breastfeeding duration and the method of birth may also play a role. Understanding these factors can help in managing and potentially reducing the risk of developing the disease.

  • Timing of Gluten Introduction: Introducing gluten into the diet either too early or too late in infancy may increase the risk of developing celiac disease. Research suggests that there is a critical window during which gluten should be introduced to minimize risk.

  • Infections: Certain viral infections, particularly in early childhood, have been associated with an increased risk of celiac disease. These infections may trigger an immune response that contributes to the development of the condition.

  • Gut Microbiome: The composition of gut bacteria can influence the risk of developing celiac disease. An imbalance in the gut microbiome may affect immune responses and increase susceptibility to the disease.

  • Breastfeeding Duration: Longer duration of breastfeeding has been suggested to have a protective effect against celiac disease. Breastfeeding may help in the gradual introduction of gluten and support the development of the infant's immune system.

  • Method of Birth: Being born via cesarean section has been linked to a higher risk of celiac disease compared to vaginal birth. This may be due to differences in the initial exposure to beneficial bacteria during birth.

Genetic Risk Factors

Celiac disease is strongly influenced by genetic factors, with certain genes playing a crucial role in its development. The presence of specific genetic markers significantly increases the risk of developing the condition. These genetic factors are primarily related to the immune system and its response to gluten. Understanding these genetic components helps in identifying individuals at higher risk.

  • HLA-DQ2 and HLA-DQ8: The majority of individuals with celiac disease carry either the HLA-DQ2 or HLA-DQ8 genes. These genes are part of the human leukocyte antigen (HLA) system, which helps the immune system distinguish between the body's own proteins and those from invaders like viruses and bacteria. Having these genes does not guarantee the development of celiac disease, but they are present in almost all affected individuals.

  • Non-HLA genes: In addition to HLA-DQ2 and HLA-DQ8, other non-HLA genes have been associated with celiac disease. These genes are involved in immune system regulation and inflammation. Although they contribute to the risk, their impact is smaller compared to the HLA genes.

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Dr. Wallerstorfer

Lifestyle Risk Factors

Lifestyle factors can play a role in the development and management of Celiac disease. While genetic predisposition is a significant factor, certain lifestyle choices may influence the onset or severity of the condition. Understanding these factors can help in making informed decisions about diet and physical activity. Here are some lifestyle risk factors associated with Celiac disease.

  • Dietary Gluten Intake: Consuming foods that contain gluten, a protein found in wheat, barley, and rye, is the primary trigger for Celiac disease symptoms. A diet high in gluten can increase the risk of developing the disease in genetically predisposed individuals. Avoiding gluten is essential for managing the condition.

  • Breastfeeding Duration: The duration of breastfeeding may influence the risk of developing Celiac disease. Some studies suggest that longer breastfeeding duration might delay the onset of symptoms. However, the protective effect of breastfeeding is still a subject of ongoing research.

  • Introduction of Gluten to Infants: The timing of introducing gluten into an infant's diet may affect the risk of developing Celiac disease. Introducing gluten either too early or too late might increase the risk. Current guidelines recommend introducing gluten while the infant is still being breastfed.

  • Physical Activity: Regular physical activity does not directly influence the risk of developing Celiac disease. However, maintaining a healthy lifestyle through exercise can support overall well-being and help manage symptoms. Exercise can also aid in maintaining a healthy weight, which is beneficial for individuals with Celiac disease.

Risk Prevention

Celiac disease is influenced by genetic and environmental factors, and while it cannot be completely prevented, certain measures may help reduce the risk or delay its onset. Maintaining a healthy lifestyle and being mindful of dietary choices can play a role in managing risk factors. Awareness of family history and early consultation with healthcare professionals can also be beneficial.

  • Genetic Awareness: Understanding family history can help identify the risk of developing Celiac disease. If there is a family history, genetic counseling may provide insights into potential risks and preventive measures.

  • Breastfeeding: Breastfeeding infants may offer some protection against the development of Celiac disease. It is suggested that breastfeeding while introducing gluten-containing foods might reduce the risk.

  • Dietary Management: Introducing gluten-containing foods gradually and at the right age may help in reducing the risk. Consulting with healthcare providers for personalized dietary advice can be beneficial.

  • Regular Medical Check-ups: Regular check-ups with healthcare professionals can help in early detection and management of symptoms. Early intervention may prevent complications associated with Celiac disease.

  • Healthy Lifestyle: Maintaining a balanced diet and regular exercise can support overall health and potentially reduce the risk of autoimmune conditions. A healthy lifestyle may contribute to better immune system function.

How effective is prevention

Celiac disease cannot be entirely prevented, but certain strategies may help lower the risk or delay its onset. Understanding family history and seeking genetic counseling can provide insights into potential risks. Breastfeeding and carefully introducing gluten-containing foods at the right age might offer some protection. Regular medical check-ups and maintaining a healthy lifestyle can support overall health and aid in early detection and management.

Transmission

Celiac disease is not infectious and cannot be transferred from person to person like a cold or flu. It is a genetic condition, meaning it is passed down through families. Individuals with a family history of the disease have a higher risk of developing it. Environmental factors, such as diet and gut health, may also play a role in triggering the disease in genetically predisposed individuals. The condition is activated by consuming gluten, a protein found in wheat, barley, and rye.

When to test your genes

Genetic testing for early detection or personalized care is recommended if there is a family history of certain genetic conditions, unexplained symptoms, or if planning for pregnancy. It can help identify risks for inherited diseases and guide lifestyle or treatment decisions. Consulting with a healthcare professional is advised before testing.

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Dr. Wallerstorfer

Diagnosis

Celiac disease is diagnosed through a combination of blood tests and biopsies. Blood tests are used to detect specific antibodies that are typically present in individuals with the condition. If blood tests suggest the presence of the disease, a biopsy of the small intestine is often performed to confirm the diagnosis. Genetic testing may also be conducted to identify genes associated with the disease.

  • Blood Tests: Blood tests are used to detect specific antibodies that are typically present in individuals with the condition. These antibodies include tissue transglutaminase (tTG) and endomysial antibodies (EMA). A positive result indicates a likelihood of the disease, prompting further testing.

  • Small Intestine Biopsy: If blood tests suggest the presence of the disease, a biopsy of the small intestine is often performed to confirm the diagnosis. During this procedure, a small sample of tissue is taken from the intestine to look for damage to the villi. The presence of damaged villi is a strong indicator of the disease.

  • Genetic Testing: Genetic testing may also be conducted to identify genes associated with the disease. The presence of certain genes, such as HLA-DQ2 and HLA-DQ8, can indicate a genetic predisposition. However, having these genes does not guarantee the development of the disease.

Stages of Celiac disease

Celiac disease progresses through several stages, each characterized by different symptoms and levels of intestinal damage. The progression can vary among individuals, and not everyone will experience all stages. Early detection and management are crucial to prevent severe complications.

Silent Stage

In this stage, individuals may not experience noticeable symptoms, but damage to the small intestine is occurring. This stage is often identified through screening in individuals with a family history of the disease.

Latent Stage

Individuals may have a genetic predisposition to celiac disease but do not show symptoms. The intestinal lining remains intact, and there is no damage at this stage.

Symptomatic Stage

Symptoms such as diarrhea, bloating, and abdominal pain become apparent. The small intestine begins to show damage, and nutrient absorption is affected.

Severe Stage

Significant damage to the small intestine occurs, leading to severe symptoms and complications. Nutrient deficiencies and other health issues may arise due to impaired absorption.

Did you know about genetic testing?

Genetic testing can identify individuals who carry specific genes associated with a higher risk of developing Celiac disease, allowing for early monitoring and lifestyle adjustments to prevent symptoms. It aids in distinguishing Celiac disease from other conditions with similar symptoms, ensuring accurate diagnosis and appropriate treatment. Additionally, understanding one's genetic predisposition can guide family members in assessing their own risk and taking preventive measures.

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Dr. Wallerstorfer

Outlook and Prognosis

The outlook for individuals with Celiac disease is generally positive, especially when the condition is managed properly. Adhering to a strict gluten-free diet is the cornerstone of treatment and can lead to significant improvement in symptoms and overall health. Most people who follow this diet experience a reduction in symptoms within weeks and can expect their intestinal lining to heal over time. This dietary management not only alleviates symptoms but also reduces the risk of long-term complications.

If left untreated, Celiac disease can lead to various health issues, including nutritional deficiencies, osteoporosis, and an increased risk of certain types of intestinal cancers. However, with proper dietary management, these risks are significantly minimized. The prognosis is excellent for those who maintain a gluten-free lifestyle, with life expectancy comparable to the general population.

Mortality rates for individuals with Celiac disease who adhere to a gluten-free diet are similar to those without the condition. However, those who do not follow the diet may face a slightly increased risk of mortality due to complications associated with untreated disease. Regular follow-up with healthcare providers is recommended to monitor health and ensure adherence to the diet. Early diagnosis and treatment are crucial for improving quality of life and long-term health outcomes.

Long Term Effects

Celiac disease can lead to various long-term health issues if not managed properly. These effects are primarily due to the body's inability to absorb nutrients effectively, leading to deficiencies and other complications. The severity and range of these effects can vary depending on the individual and the duration of untreated disease. Long-term management and adherence to a strict gluten-free diet are crucial to prevent these complications.

  • Nutrient Deficiencies: Chronic malabsorption can lead to deficiencies in essential nutrients such as iron, calcium, and vitamins D and B12. This can result in anemia, osteoporosis, and neurological issues. Regular monitoring and supplementation may be necessary.

  • Bone Health Issues: Osteoporosis and osteopenia are common due to poor calcium and vitamin D absorption. This increases the risk of fractures and bone pain. Early diagnosis and treatment are important to maintain bone health.

  • Increased Risk of Other Autoimmune Disorders: Individuals with celiac disease have a higher risk of developing other autoimmune conditions, such as type 1 diabetes and thyroid disorders. This is due to the immune system's heightened activity. Regular check-ups can help in early detection and management.

  • Neurological Problems: Some individuals may experience neurological issues like peripheral neuropathy and ataxia. These are linked to nutrient deficiencies and immune responses. Symptoms can include tingling, numbness, and balance problems.

  • Reproductive Health Issues: Untreated celiac disease can affect fertility and pregnancy outcomes. Women may experience irregular menstrual cycles and increased risk of miscarriage. Proper management can improve reproductive health.

  • Increased Risk of Certain Cancers: There is a slightly increased risk of certain cancers, such as intestinal lymphoma and small bowel cancer. This risk is higher in those who do not adhere to a gluten-free diet. Regular medical follow-up is advised.

How is it to live with Celiac disease

Living with Celiac disease requires strict adherence to a gluten-free diet, which can significantly impact daily life, including meal planning, grocery shopping, and dining out. Individuals must be vigilant about reading food labels and avoiding cross-contamination, which can be challenging in social settings. The condition can affect family and friends, who may need to adjust meal preparations and be mindful of food choices during gatherings. Emotional and social support from those around can be crucial in managing the lifestyle changes required by the condition.

Treatment and Drugs

The primary treatment for Celiac disease is a strict gluten-free diet, which helps manage symptoms and heal intestinal damage. Currently, there are no specific drugs approved for this condition, but research is ongoing to develop medications that can assist in managing it. Experimental treatments include larazotide acetate, which aims to reduce intestinal permeability, and ALV003, a combination of enzymes designed to break down gluten. Other investigational approaches involve Nexvax2, a therapeutic vaccine to induce immune tolerance, and BL-7010, a polymer that binds to gluten to prevent its absorption. These potential treatments aim to reduce symptoms, prevent intestinal damage, or allow some dietary flexibility.

Non-Drug Treatment

Celiac disease management primarily involves lifestyle and dietary changes to alleviate symptoms and promote intestinal healing. The cornerstone of treatment is a strict gluten-free diet, which requires careful attention to food labels and ingredients. Support from healthcare professionals, dietitians, and support groups can enhance adherence to dietary changes and improve quality of life. Additionally, nutritional supplements may be necessary to address deficiencies caused by malabsorption.

  • Gluten-Free Diet: A strict gluten-free diet is essential for managing celiac disease. This involves avoiding all foods containing wheat, barley, and rye. Careful reading of food labels and awareness of cross-contamination are crucial.

  • Dietary Education and Counseling: Working with a dietitian can help individuals understand how to maintain a gluten-free diet. Education on identifying gluten-containing foods and alternatives is provided. Counseling can also address challenges in dining out and social situations.

  • Nutritional Supplements: Supplements may be needed to correct deficiencies in vitamins and minerals due to malabsorption. Common supplements include iron, calcium, vitamin D, and B vitamins. A healthcare provider can recommend appropriate supplements based on individual needs.

  • Support Groups and Counseling: Joining support groups can provide emotional support and practical advice for living with celiac disease. Counseling can help individuals cope with the lifestyle changes required. Sharing experiences with others can improve adherence to a gluten-free diet.

Did you know that drugs are influenced by genes?

Genetic variations can affect how individuals respond to drugs used for treating Celiac disease, influencing both effectiveness and potential side effects. Personalized medicine approaches are being explored to tailor treatments based on a person's genetic makeup.

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Dr. Wallerstorfer

Pharmacological Treatments

Currently, there are no specific drugs approved to treat Celiac disease. The primary treatment is a strict gluten-free diet, which helps manage symptoms and heal intestinal damage. However, research is ongoing to develop medications that can assist in managing the condition. These potential treatments aim to reduce symptoms, prevent intestinal damage, or allow some dietary flexibility.

  • Larazotide acetate: Larazotide acetate is an experimental drug that aims to reduce the intestinal permeability caused by gluten. It works by tightening the junctions between cells in the gut lining, potentially reducing symptoms when gluten is accidentally ingested.

  • ALV003: ALV003 is a combination of two enzymes designed to break down gluten in the stomach before it reaches the small intestine. This drug is still under investigation and aims to prevent the immune response triggered by gluten.

  • Nexvax2: Nexvax2 is a therapeutic vaccine intended to induce immune tolerance to gluten. It is designed to reprogram the immune system to tolerate gluten without triggering harmful reactions.

  • BL-7010: BL-7010 is a non-absorbable polymer that binds to gluten in the stomach, preventing its absorption in the small intestine. This approach aims to reduce gluten exposure and its associated symptoms.

Genetic Influences

Genetics play a significant role in the development of Celiac disease, with certain genes increasing the likelihood of an individual developing the condition. The most important genetic factors are specific versions of genes known as HLA-DQ2 and HLA-DQ8, which are involved in the immune system's response to gluten. Approximately 95% of individuals with Celiac disease possess one or both of these gene variants, although having these genes does not guarantee the development of the disease. Other genetic factors beyond HLA-DQ2 and HLA-DQ8 also contribute to the risk, but their influence is less well understood. Family history is a strong indicator, as individuals with a first-degree relative with Celiac disease have a higher risk of developing it themselves. Environmental factors, such as diet and gut health, interact with these genetic predispositions to trigger the onset of the disease.

Gene variations

Genetic variations play a significant role in determining the risk and severity of Celiac disease. The presence of certain genetic markers can increase the likelihood of developing the condition. These genetic factors can also influence how severe the symptoms are in affected individuals.

  • HLA-DQ2 and HLA-DQ8: The most significant genetic risk factors for Celiac disease are the HLA-DQ2 and HLA-DQ8 genes. These genes are involved in the immune system's response to gluten. Approximately 95% of people with Celiac disease have one or both of these genetic markers.

  • Non-HLA Genes: In addition to HLA genes, other non-HLA genes have been associated with Celiac disease. These include genes involved in immune regulation and intestinal barrier function. Variations in these genes can contribute to the risk and severity of the disease.

  • Family History: A family history of Celiac disease increases the risk of developing the condition. First-degree relatives of individuals with Celiac disease have a higher likelihood of carrying the genetic markers. This suggests a hereditary component to the disease's genetic risk.

Variant Table Legend

Clinical Testing

Scientific Studies

Biological Male Symbol

Biological Female Symbol

Unisex Symbol for both Genders

Variants that influence Celiac disease based on Scientific Studies

Scientific studies classifications aim to uncover how genetic variants function and their roles in diseases, traits, and evolution. Variants are categorized based on their functional impact, such as loss-of-function (reduces gene activity), gain-of-function (increases gene activity), neutral (no significant impact), or evolutionary conservation. This classification uses experimental data, population studies, and computational analyses to understand variant effects. Unlike clinical testing, which focuses on immediate health impacts, scientific studies explore broader genetic mechanisms and long-term implications.

Variants that Affect Both Biological Males and Females

6822844

Genotype

C

C

Level of evidence

Increased likelihood

Unisex

1 Sources

Participants: 2189

The genotype with the letters C/C is considered a risk factor for developing the disease. Carriers of this genetic result are at increased risk of developing the disease.

Genotype

G

G

Level of evidence

Increased likelihood

Unisex

1 Sources

Participants: 2200

The genotype with the letters G/G is considered a risk factor for developing the disease. Carriers of this genetic result are at increased risk of developing the disease.

Genotype

C

G

Level of evidence

Increased likelihood

Unisex

2 Sources

Participants: 4389

The genotype with the letters C/G is considered a risk factor for developing the disease. Carriers of this genetic result are at increased risk of developing the disease.

Genotype

G

T

Level of evidence

Increased likelihood

Unisex

1 Sources

Participants: 2200

The genotype with the letters G/T is considered a risk factor for developing the disease. Carriers of this genetic result are at increased risk of developing the disease.

Genotype

C

C

Level of evidence

Increased likelihood

Unisex

1 Sources

Participants: 2189

The genotype with the letters C/C is considered a risk factor for developing the disease. Carriers of this genetic result are at increased risk of developing the disease.

Genotype

G

G

Level of evidence

Increased likelihood

Unisex

1 Sources

Participants: 2200

The genotype with the letters G/G is considered a risk factor for developing the disease. Carriers of this genetic result are at increased risk of developing the disease.

Genotype

C

G

Level of evidence

Increased likelihood

Unisex

2 Sources

Participants: 4389

The genotype with the letters C/G is considered a risk factor for developing the disease. Carriers of this genetic result are at increased risk of developing the disease.

Genotype

G

T

Level of evidence

Increased likelihood

Unisex

1 Sources

Participants: 2200

The genotype with the letters G/T is considered a risk factor for developing the disease. Carriers of this genetic result are at increased risk of developing the disease.

Genotype

G

G

Level of evidence

Increased likelihood

Unisex

2 Sources

Participants: 17472

The genotype with the letters G/G is considered a risk factor for developing the disease. Carriers of this genetic result are at increased risk of developing the disease.

Genotype

C

G

Level of evidence

Increased likelihood

Unisex

2 Sources

Participants: 17472

The genotype with the letters C/G is considered a risk factor for developing the disease. Carriers of this genetic result are at increased risk of developing the disease.

Genotype

G

G

Level of evidence

Increased likelihood

Unisex

2 Sources

Participants: 17472

The genotype with the letters G/G is considered a risk factor for developing the disease. Carriers of this genetic result are at increased risk of developing the disease.

Genotype

C

G

Level of evidence

Increased likelihood

Unisex

2 Sources

Participants: 17472

The genotype with the letters C/G is considered a risk factor for developing the disease. Carriers of this genetic result are at increased risk of developing the disease.

1250552

Genotype

A

A

Level of evidence

Increased likelihood

Unisex

1 Sources

Participants: 24269

The genotype with the letters A/A is considered a risk factor for developing the disease. Carriers of this genetic result are at increased risk of developing the disease.

Genotype

A

C

Level of evidence

Increased likelihood

Unisex

1 Sources

Participants: 24269

The genotype with the letters A/C is considered a risk factor for developing the disease. Carriers of this genetic result are at increased risk of developing the disease.

Genotype

A

T

Level of evidence

Increased likelihood

Unisex

1 Sources

Participants: 24269

The genotype with the letters A/T is considered a risk factor for developing the disease. Carriers of this genetic result are at increased risk of developing the disease.

Genotype

A

G

Level of evidence

Increased likelihood

Unisex

1 Sources

Participants: 24269

The genotype with the letters A/G is considered a risk factor for developing the disease. Carriers of this genetic result are at increased risk of developing the disease.

Genotype

A

A

Level of evidence

Increased likelihood

Unisex

1 Sources

Participants: 24269

The genotype with the letters A/A is considered a risk factor for developing the disease. Carriers of this genetic result are at increased risk of developing the disease.

Genotype

A

C

Level of evidence

Increased likelihood

Unisex

1 Sources

Participants: 24269

The genotype with the letters A/C is considered a risk factor for developing the disease. Carriers of this genetic result are at increased risk of developing the disease.

Genotype

A

T

Level of evidence

Increased likelihood

Unisex

1 Sources

Participants: 24269

The genotype with the letters A/T is considered a risk factor for developing the disease. Carriers of this genetic result are at increased risk of developing the disease.

Genotype

A

G

Level of evidence

Increased likelihood

Unisex

1 Sources

Participants: 24269

The genotype with the letters A/G is considered a risk factor for developing the disease. Carriers of this genetic result are at increased risk of developing the disease.

Variants that influence Celiac disease

All variants that were shown to influence the risk of developing Celiac disease are listed here.

Genes that influence Celiac disease

All Genes, that contain variants, which were shown to influence the risk of developing Celiac disease are listed here

Pharmacogenetics - how genetics influence drugs

Genetics play a significant role in the treatment of Celiac disease, as certain genetic markers are associated with an increased risk of developing the condition. Most individuals with Celiac disease carry specific versions of genes known as HLA-DQ2 or HLA-DQ8. These genetic markers are crucial for diagnosing the disease, as their presence can help confirm a diagnosis when combined with other clinical assessments. Understanding a patient's genetic makeup can also guide the development of personalized treatment plans, although the primary treatment remains a strict gluten-free diet. Currently, there are no drugs that cure Celiac disease, but research is ongoing to develop medications that could help manage symptoms or prevent the immune response triggered by gluten. Future therapies may include drugs that target specific genetic pathways involved in the disease, offering more tailored and effective treatment options.

Drugs influenced by genetics

doctor_quote

Dr. Wallerstorfer

Interactions with other diseases

Celiac disease is known to have interactions with several other autoimmune disorders. Individuals with this condition are at an increased risk of developing type 1 diabetes, an autoimmune disease where the body's immune system attacks insulin-producing cells in the pancreas. There is also a notable association with autoimmune thyroid diseases, such as Hashimoto's thyroiditis and Graves' disease, where the immune system mistakenly targets the thyroid gland. Additionally, those with celiac disease may experience a higher prevalence of other autoimmune conditions like rheumatoid arthritis and lupus. The shared genetic and immunological factors among these diseases suggest a common underlying mechanism that predisposes individuals to multiple autoimmune disorders.

Special Life Conditions

During pregnancy, individuals with Celiac disease may face challenges such as nutrient deficiencies, which can affect both maternal health and fetal development. It is crucial for pregnant individuals to adhere strictly to a gluten-free diet to ensure proper nutrient absorption. In older adults, Celiac disease can lead to complications like osteoporosis due to long-term nutrient malabsorption, making bone health monitoring essential. Children with Celiac disease may experience growth delays if the condition is not managed properly, highlighting the importance of early diagnosis and dietary management. Active athletes with Celiac disease need to be vigilant about their diet to maintain energy levels and performance, as gluten exposure can lead to fatigue and gastrointestinal distress. Each of these life conditions requires tailored management strategies to address the unique challenges posed by Celiac disease.

History

Celiac disease has a fascinating history that dates back centuries, although its recognition as a distinct medical condition is relatively recent. The earliest known description of symptoms resembling those of celiac disease can be traced back to the second century AD, when a Greek physician named Aretaeus of Cappadocia documented a condition characterized by chronic diarrhea and malabsorption. However, it wasn't until the 19th century that the condition began to be understood more clearly.

In the 1880s, Samuel Gee, a British physician, provided one of the first modern descriptions of celiac disease. He observed that children with chronic digestive issues improved when their diets were altered, suggesting a link between food and the disease. Despite this early insight, the specific cause of celiac disease remained elusive for many years.

The turning point in understanding celiac disease came during World War II. A Dutch pediatrician named Willem-Karel Dicke noticed that children with celiac disease improved during bread shortages, when wheat was scarce. This observation led to the hypothesis that wheat, and more specifically gluten, was the culprit. After the war, when bread consumption resumed, the symptoms in these children returned, further supporting the connection between gluten and celiac disease.

The identification of gluten as the trigger for celiac disease paved the way for dietary treatment. The gluten-free diet, which involves the elimination of wheat, barley, and rye, became the primary treatment for managing the disease. This dietary approach has been the cornerstone of celiac disease management since the mid-20th century and remains the only effective treatment to date.

Celiac disease has had a significant impact on human health, affecting approximately 1% of the global population. It can lead to a range of symptoms and complications if left untreated, including nutritional deficiencies, growth problems in children, and an increased risk of certain autoimmune disorders. The disease's prevalence and potential severity have made it a subject of ongoing research and public health interest.

Current research in celiac disease is focused on several key areas. Scientists are investigating the genetic factors that contribute to the disease, as it is known to run in families. Understanding these genetic components could lead to better diagnostic tools and potential preventive strategies. Additionally, researchers are exploring alternative treatments beyond the gluten-free diet, such as medications that could help protect the gut from gluten or therapies that might induce tolerance to gluten.

Another promising area of research is the development of more accurate and less invasive diagnostic methods. Currently, diagnosis often involves a combination of blood tests and intestinal biopsies, but advancements in technology may soon offer simpler and more precise options.

As our understanding of celiac disease continues to evolve, there is hope that new treatments and diagnostic methods will improve the quality of life for those affected by this condition. The ongoing research efforts reflect a commitment to unraveling the complexities of celiac disease and finding innovative solutions to manage and potentially prevent it.

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