Towards a treatment for gluten intolerance

Free from Gluten
Free from Gluten


Celiac disease is a severe autoimmune disorder of the intestine. It occurs when people develop sensitivity to gluten, a substance found in wheat, rye, and barley. An international research team from Italy and France has now uncovered a new molecular player in the development of gluten intolerance. Their discovery, published in The EMBO Journal, suggests potential targets for the development of therapeutic approaches for the disease.

Celiac disease can appear in people who are genetically predisposed, but it is triggered through environmental factors. When people suffering from celiac disease eat gluten, their immune system triggers a response against their body’s own cells, damaging the mucosal surface of the small intestine. About 1 in 100 people suffer from celiac disease, but the prevalence is about three times higher in patients who also suffer from cystic fibrosis. “This co-occurrence made us wonder if there is a connection between the two diseases at the molecular level,” said Luigi Maiuri of the University of Piemonte Orientale in Novara and San Raffaele Scientific Institute in Milan, Italy, who led the research together with Valeria Raia (University Federico II of Naples, Italy) and Guido Kroemer (University of Paris Descartes, France).

Cystic fibrosis is characterized by the build-up of thick and sticky mucus in the patients’ lungs and intestine. It is caused by mutations of the gene coding for cystic fibrosis transmembrane conductance regulator (CFTR). CFTR is an ion transport protein that plays an important role in keeping mucus fluid – when it fails, the mucus clogs up. Moreover, CFTR malfunction triggers a number of additional reactions in the lungs and other organs including intestine by activation of the immune system. These effects are very similar to the responses triggered by gluten in celiac patients. Maiuri, Kroemer and their colleagues took a closer look at the molecular underpinnings of these similarities.

Gluten is difficult to digest, so that relatively long protein parts – peptides – enter the intestine. Using human intestinal cell lines that are sensitive to gluten, the researchers found that one specific peptide, P31-43, directly binds to CFTR and impairs its function. This interaction triggers cellular stress and inflammation, suggesting that CFTR plays a central role in mediating gluten sensitivity in celiac patients.

Moreover, the interaction between P31-43 and CFTR can be inhibited by a potentiator of CFTR, called VX-770. When intestinal cells or tissue samples collected from celiac disease patients were pre-incubated with VX-770 before being exposed to P31-43, the peptide did not elicit an immune reaction. Thus, VX-770 protects gluten-sensitive epithelial cells from the detrimental effect of gluten. In addition, the researchers found that VX-770 could protect gluten-sensitive mice from gluten-induced intestinal symptoms.

There is, as yet, no cure for celiac disease; the only therapeutic strategy is to keep a strict diet. However, the current study is a promising step towards the development of a treatment. It suggests that CFTR potentiators, which have been developed to treat cystic fibrosis, may also be explored as a starting point for the development of a remedy for celiac disease.

Gluten intolerance – what are the signs and symptoms of celiac disease?




Coeliac disease and gluten intolerance

Coeliac disease and gluten intolerance

Symptoms

Symptoms of coeliac disease can range from mild to severe, and often come and go.




Mild cases may not cause any noticeable symptoms, and the condition is often only detected during testing for another condition.

Treatment is recommended even when symptoms are mild or non-existent, because complications can still occur.

Common symptoms

Diarrhoea is the most common symptom of coeliac disease. It’s caused by the body not being able to fully absorb nutrients (malabsorption, see below).

Malabsorption can also lead to stools containing abnormally high levels of fat (steatorrhoea). This can make them foul smelling, greasy and frothy. They may also be difficult to flush down the toilet.

Other common gut-related symptoms include:

abdominal pain

bloating and flatulence (passing wind)

indigestion

constipation

vomiting (usually only affects children)

And more general symptoms may include:

fatigue (extreme tiredness), which may be a sign of iron deficiency anaemia or vitamin B12 folate deficiency anaemia

unexpected weight loss

an itchy rash (see below)

difficulty getting pregnant

tingling and numbness in your hands and feet (peripheral neuropathy)

disorders that affect co-ordination, balance and speech (ataxia)

swelling of the hands, feet, arms and legs caused by a build-up of fluid (oedema)

Malnutrition

If coeliac disease isn’t treated, not being able to digest food in the normal way could cause you to become malnourished, leading to tiredness and a lack of energy.

Malnutrition in children can result in failure to grow at the expected rate, both in terms of height and weight. Children may also have delayed puberty.

Dermatitis herpetiformis

Although not a symptom of coeliac disease, if you have an autoimmune response to gluten, you may develop a type of skin rash called dermatitis herpetiformis.




The rash is itchy and has blisters that burst when scratched. It usually occurs on your elbows, knees and buttocks, although it can appear anywhere on your body.

It’s estimated that around one in five people with coeliac disease also develop dermatitis herpetiformis.

The exact cause of dermatitis herpetiformis isn’t known, but, as with coeliac disease, it’s associated with gluten. Like coeliac disease, it should clear up after switching to a gluten-free diet.

Gluten -Do you have an intolerance or allergy to gluten?

Free from Gluten

Free from Gluten

A couple of days ago I was reading one of our Facebook pages when I can across a discussion on the subject of the relationship between fibromyalgia and gluten intolerance. From the conversation it seems that many people with either fibromyalgia or multiple sclerosis have found that excluding gluten from their diets has significant benefits.

Adding to this avoiding gluten has recently been suggested as a therapy for autism .

So I was wondering how common gluten intolerance was among my readers. It would be great if you could take the poll below to help us collect some data. It would be great if you could mention your main conditions or syndromes in the comments section below. Any comments on how diet has helped would also be very useful for our readers.

So please feel free to share any part of your gluten story!





What are the signs and symptoms of Celiac disease and Gluten intolerance?

The issue of gluten intolerance (and thus Celiac disease) has been on my mind for the last couple of days.

Mainly because the holiday nanny is not just gluten intolerant but also can’t eat onions or garlic.

So I thought it would be useful to share with you some of the information about signs and symptoms of gluten intolerance and Celiac what I have gleaned from the interweb.


What is gluten and gluten intolerance, What is Celiac Disease and symptoms

Celiac Awareness Month – Frequently Asked Questions with Coeliac sufferer Dr Chris Steele


TV doctor and coeliac sufferer Chris Steele is urging people to take notice of their symptoms if they suffer from digestive issues or other potential symptoms of coeliac disease, with experts believing hundreds of thousands of people in the UK could unknowingly be suffering from Coeliac disease.

Celiac Awareness

Celiac Awareness

This week is Coeliac UK Awareness Week and, according to Coeliac UK, the national charity for people with coeliac disease, around 1 in 100 people in the UK are estimated to suffer from the condition. However under-diagnosis is a big problem with an estimated 500,000 people in the UK suffering from the condition without knowing. It takes on average 13 years from the onset of symptoms for people to achieve a diagnosis. One in four people diagnosed with coeliac disease were previously treated for IBS.

Coeliac disease is an autoimmune condition where a person has an adverse reaction to gluten, a protein found in wheat, barley and rye. There are a range of symptoms, including digestive problems such as abdominal bloating, pain, gas, regular bouts of diarrhoea and weight loss as well as ongoing fatigue, a severe blister like skin rash, and iron deficiency anaemia.


New research shows that almost 40% of people in the UK suffer from digestive issues, however, almost half have never been diagnosed.

Of those that have been diagnosed, more than a quarter weren’t diagnosed for over a year, and above 40% said they thought the symptoms would go away gradually. Surprisingly one in eight were misdiagnosed by a GP, while the same number were embarrassed to talk about their symptoms.

Although there has been more attention around gluten and gluten free products in recent years there seems to be confusion over what products actually contain gluten. A quarter of those surveyed did not know that bread contains gluten, a third were unaware it was in pasta and almost two thirds did not realise beer contains gluten, while one in eight believe oats should be avoided at all costs by people with coeliac disease. In fact, according to Coeliac UK, 95% of suffers are able to tolerate oats as long as they are labelled as gluten free. The British Society of Gastroenterology Guidelines for the diagnosis and management of coeliac disease advice that gluten-free oats can be included within the diet from diagnosis.

Once following a gluten free diet, it is important to ensure you are not missing out on key nutrients such as fibre. Following recent changes to guidance from the British Society of Gastroenterology, gluten free oats are now listed as a safe food for people with coeliac disease to consume from diagnosis, providing an important source of fibre in gluten free diets.

PatientTalk.Org were lucky enough to interview Dr Chris to give us a great introduction to Celiac.

Patient Talk: Its coeliac awareness week, and joining me now is Dr. Chris Steele to tell us a bit more about it. Dr Chris, first of all what is coeliac disease

Dr Chris: Well, Coeliac disease is a serious illness, it’s a life long illness, and basically it’s a reaction to the body from a protein called gluten, and gluten is found in wheat, barley and rye. And these grains are found lots of food. Basically these- the gluten causes the immune system to overreact and your immune system starts attacking your own tissues, so in effect it’s what’s known as an autoimmune disease and not actually an allergy to gluten. The gluten has caused your immune system to attack your own tissues.

Patient Talk: And how common is it?

Dr .Chris: well it’s actually not uncommon, 1 in 100 people have coeliac disease. But what disturbs me is that they are half a million people out there walking around with coeliac disease and they don’t know they got, they’re not diagnosed.

Patient Talk: They are just experiencing the symptoms and not knowing what to do.

Dr Chris.: Yeah – They may just be experiencing mild symptoms, or symptoms that come and go. And the symptoms they can’t put down to any one thing in particular. Whereas the reactant to gluten – but it could be in all sorts of different foods that they are eating. You know- If you’re just reacting to eggs you will soon find out when you are reacting to many different food that contain gluten it’s very hard to find out, there is a specific trigger for your symptoms.

Patient Talk: And what are these primary symptoms?

Dr. Chris: Now the symptoms are very important because some patients will have and these symptoms may be diagnosed as having another conditions like irritable bowel syndrome, IBS. So the sort of classic common symptoms of coeliac disease – and I know ‘cause I have coeliac disease and I’ve been through this in the early days: Diarrhoea. That can come in episodes depending on when you have been exposed to the gluten, the urgency to go, when you got to go you got to go, otherwise there will be an accident. Abdominal bloating, abdominal discomfort and fatigue, weakness. They’re the classic ones, you can get other symptoms such as mouth ulcers, hair loss, aching joints and bones. The consequences of not being diagnosed. So, here you are walking round with IBS and you really have coeliac, and you’re not absorbing certain nutrients – such as – for myself it was vitamin D and calcium, so I got oscosteoporosis, as a consequence for having undiagnosed coeliac disease for many years. Anaemia an unknown cause can be caused by coeliac disease. One interesting area, it’s not a massive area, but women for having recurrent miscarriages or problems with infertility should be tested for coeliac disease.

Patient Talk: What are the tests for it?

Dr. Chris: Tests – simple, single blood test, that’s all there is to it. Now if you have these symptoms and are thinking “Oh that could be me” go and see you GP for a blood test and do not change your diet, if you stop eating gluten your tests could come back negative. So eat normally have your blood tests and if that’s positive then you’ll be referred to a specialist for a biopsy test, it’s only a thin flexible test going down and then again before that test do not change your diet, have normally food before those tests have been done.

Patient Talk: Are there other types of gluten intolerance?

Dr. Chris: Well it’s a complicated area and it’s probably best not to go into that because you can have non-coeliac gluten intolerance, you can be intolerant to other proteins similar to gluten….it’s quite a complicated area. For most patients they have coeliac disease caused by gluten, therefore avoid gluten in the future.

Patient Talk: Okay. So, let’s talk about treatments available, what are they and how efficient are they?

Dr. Chris: Well, there is no cure for coeliac disease and there is no treatment. That sounds very negative. However the answer is going on to a strict gluten free diet for life. It’s as simple as that, but following and gluten free diet is not simple. It’s very difficult and adjust to and you need to see a nutritious after you’ve seen your specialist to get advice on gluten free food. You will become an expert on reading labels to check whether there is gluten in there or not.
Patient Talk: Can you tell us a bit about this research what you’ve done, a bit about methodology and what the results were.

Dr. Chris: Well the latest research has come out has actually changed the way we manage coeliac disease. Usually the patient has been diagnosed as a coeliac sufferer and told: right avoid wheat, barley and rye and don’t eat oats. Oats don’t contain gluten. But don’t eat oats for 6 to 12 months and then slowly introduce them into your diet. Now the latest research has changed all of that completely, once you’re diagnosed you can’t eat wheat, barely or rye but you can eat oats there on then. But of course when you are buying oat products got to assure that they are gluten free
Patient Talk: Read the label.

Dr. Chris: Yes, read the label – they have got to be gluten free. Although oats don’t contain gluten they can be contaminated by gluten up by the farm, if oats are mixed with wheat barley, rye the farming process, in the mill where the grains are milled if the oats can be contaminated by wheat barely rye. And also in the bakery, that makes the cakes, pastries and the crackers, has to be a dedicated bakery where there are no grains where there are wheat barely or rye.

Patient Talk: Finally for this part what is the best advice which you have about coeliac disease?
Dr. Chris: You can’t treat coeliac disease, that you have to avoid gluten and also because you aren’t eating grains like wheat barley and rye, you’ve got to eat oats you’ve got to get those grains into your diet they have to be gluten free. The reason for that is oats are a good source of fibre, fibre reduces cholesterol fibre fills you for longer, provides slow release energy for longer, and also is very good for bowel health. So coeliacs’ have got to get oats into their diets. Now, I’ve looked at all of these products out there, and there is a company called Nairn’s, who are dedicated in producing only gluten free oat products: Biscuits, crackers etc… and they are probably one of the biggest suppliers out there on supermarket shelves, and I can say I use their products I’ve tested them all.

Keep your eyes peeled for our follow up article on advice for the just diagnosed!