Genetic Carbohydrate Maldigestion as a Model to Study Food Hypersensitivity
This study aims to understand why some people with Irritable Bowel Syndrome (IBS) experience discomfort, particularly after eating carbohydrates. About one in seven people have IBS, causing symptoms like tummy pain, bloating, and changes in bowel habits. Many find that certain foods, especially carbohydrates, make their symptoms worse. Researchers believe this might be due to a problem with how the body digests these foods, possibly linked to a faulty gene that helps break down sugars and starches. By comparing IBS patients with healthy individuals, they hope to find out how common this genetic issue is and how it contributes to IBS, which could lead to better ways to manage the condition.
At a glance
What is this study about?
Irritable Bowel Syndrome, or IBS, affects many people and can cause uncomfortable tummy problems like pain, bloating, constipation, or diarrhoea. It can really impact daily life, making it hard to go to work or enjoy activities. Researchers are trying to understand why some people get IBS and why certain foods, particularly carbohydrates (like those found in bread, pasta, or sugary foods), often seem to trigger symptoms.
One idea is that some people might have trouble digesting certain carbohydrates properly. This could be because an important enzyme, which is a natural chemical in your body that breaks down food, isn't working as well as it should. If these carbohydrates aren't properly digested in the small bowel, they can reach the large bowel where they are fermented by bacteria, leading to gas and familiar IBS symptoms like pain and bloating. This study wants to see if a faulty gene, which controls this enzyme, is more common in people with IBS compared to those without.
By figuring out if this genetic issue is a common cause of IBS symptoms, especially those related to food, scientists hope to develop more targeted and effective ways to help people manage their IBS. This could mean personalised advice on diet or even new treatments in the future.
Key takeaways
- The study explores a possible genetic link to IBS.
- It focuses on how the body digests carbohydrates.
- Participation involves providing stool and saliva samples.
- Questionnaires will be used to gather health information.
- The aim is to improve understanding and future treatments for IBS.
Who may be eligible?
This study is looking for people aged 5 to 70 years old. If you have IBS that mainly causes diarrhoea (IBS-D) or a mix of diarrhoea and constipation (IBS-M), you might be eligible to take part. Before joining, you will need to have had certain tests to make sure other serious gut conditions have been ruled out. You also need to be able to follow the study's instructions carefully.
There are some reasons why you might not be able to join. For example, if your IBS mainly causes constipation (IBS-C), or if you are taking strong pain medications called opioids. Also, if you have other serious health problems like diabetes, uncontrolled thyroid issues, or other gut diseases like Crohn's disease or coeliac disease, you wouldn't be able to participate. If you've had major bowel surgery (except for appendix or gallbladder removal) or have issues with alcohol or drug abuse, you would also be excluded.
The study also needs healthy volunteers, aged 5 to 70, who don't have any IBS symptoms or other significant gut problems. If you are a close family member of an IBS patient in the study, you wouldn't be able to participate as a healthy volunteer.
Could this study suit you?
Answer these quick questions to see if you may be eligible. This is a guide only — the research team makes the final call.
- Are you between 5 and 70 years old?
- Do you have IBS with diarrhoea or mixed symptoms (IBS-D or IBS-M)?
- Have other serious gut conditions been ruled out by a doctor?
- Are you able to follow study instructions carefully?
- Do you not have other major health conditions like diabetes, uncontrolled thyroid issues, or strong gut diseases?
- Are you not currently taking strong pain medications (opioids)?
What does participation involve?
If you join this study, your involvement will be quite straightforward. You will be asked to provide some samples, specifically stool (poo) and saliva (spit). You will also need to fill out some questionnaires. These questionnaires will gather information about your symptoms and health. The study information doesn't specify how many times you would need to give samples or complete questionnaires, or the total length of time you'd be involved. All procedures would be explained in detail before you agree to take part.
Potential risks and benefits
Locations (1)
- Nottingham University Hospitals NHS TrustVerified postcodeNottingham, United Kingdom
Common questions
What is genetic carbohydrate maldigestion?
It's when your body has trouble breaking down certain sugars and starches, possibly due to a faulty gene, leading to symptoms like bloating and tummy pain.
What kind of samples will I need to give?
You will be asked to provide stool (poo) and saliva (spit) samples for the study.
Will I have to take any medication?
No, this study does not involve taking any new medications.
Who is running this study?
This research is being conducted by scientists looking into the causes of IBS and food sensitivities.
How long will my involvement last?
The study information doesn't specify the exact duration of your participation, but all details would be provided if you are suitable.
How to find out more
Always speak to your GP or specialist before deciding to take part in a study.
Discussion
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