No popular authors found.
Ads by Google:

Categories

No categories found.


Get Celiac.com's E-Newsletter




Ads by Google:



Follow / Share


  FOLLOW US:
Twitter Facebook Google Plus Pinterest RSS Podcast Email  Get Email Alerts

SHARE:

Popular Articles

No popular articles found.
Celiac.com Sponsors:

Impaired Solute Transporters and Aquaporins May Trigger Malabsorption in Celiac Disease

Celiac.com 05/12/2010 - Diarrhea, weight loss and malabsorption represent the major clinical presentation of celiac disease, but the exact mechanisms of these symptoms are not fully understood.

A team of researchers recently set out to determine whether celiac disease impairs the function of solute transporters and aquaporins. The research team included U. Laforenza, E. Miceli, G. Gastaldi, M. F. Scaffino, U. Ventura, J. M. Fontana, M. N. Orsenigo, and G. R. Corazza.

The team looked for possible alteration in the expression and localization of water channels, known as aquaporins, and certain solute transporters in duodenal mucosa of celiac disease patients.

To do this, the team evaluated duodenal biopsies from untreated celiacs, treated celiacs, healthy controls and disease controls.  The team used semi-quantitative RT-PCR and real time RT-PCR to determine the expression of some aquaporins and transporters mRNA in the duodenal biopsies. They relied on immunohistochemistry to evaluate the localization of aquaporin 3, 7 and 10, and of Na+/glucose cotransporter, H+/oligopeptide transporter and Na+/H+ exchanger.

Ads by Google:

They found that the duodenal biopsies of healthy controls, treated celiac patients and disease controls expressed aquaporin 3, 7, 10, 11, Na+/glucose cotransporter, H+/oligopeptide transporter and Na+/H+ exchanger, cystic fibrosis transmembrane conductance regulator and Na-K-2Cl cotransporter mRNAs.

Transcript expression was largely absent in the duodenal biopsies of untreated celiac disease patients, except for cystic fibrosis transmembrane conductance regulator and Na-K-2Cl cotransporter.

Immunohistochemistry of healthy control subjects showed a labeling in the apical membrane of surface epithelial cells of duodenum. Immunolabeling was heavily reduced or absent in untreated celiac patients, but normal patients who had followed a gluten free diet for at least 1 year.

The results of the study show that people with celiac disease have defects in their primary pathways for water and solute absorption that may play a role in the onset of malabsorption symptoms.

Source:


Celiac.com welcomes your comments below (registration is NOT required).





Spread The Word







Related Articles



1 Response:

 
Steve
Rating: ratingfullratingfullratingfullratingfullratingempty Unrated
said this on
13 May 2010 6:39:00 PM PDT
That was very interesting. I had to read it 3 times, but it was very interesting!

Seriously though, the defect in primary water pathways for water and solute absorption is an interesting development. Hopefully, it leads to an even better understanding of the mechanisms of celaic.




Rate this article and leave a comment:
Rating: * Poor Excellent
Your Name *: Email (private) *:




In Celiac.com's Forum Now:

All Activity
Celiac.com Celiac Disease & Gluten-Free Diet Forum - All Activity

Feeneyja, This will be a little long but I will try to be brief as possible. See this discussion thread that talks about how Pellagra is often diagnosed as other disease's today because doctor's rarely recognize it today in a clinical setting. Pellagra's is described as the 3 D's if you don't count the 4th D of death if it goes long enough and is not diagnosed in a timely manner. Dementia (Neurological) Digestive (GI problems), Dermatitis issues (Ezcema, Psorsias, Acne etc.) According to mdguidelines website http://www.mdguidelines.com/pellagra indicates that quoting ?The diagnosis of pellagra is straightforward when the classic rash is present but may be elusive if there are only gastrointestinal and/or neurological manifestations.? And why I believe in many cases Pellagra goes undiagnosed today. Because doctor's have forgotten how it presents. A longer researcher article about the neurological presentations of pellagra mention the many ways a Niacin deficiency can present itself. Here is the link https://www.hindawi.com/journals/cggr/2012/302875/ and I will quote some of the neurological/dementia related symptom's of an undiagnosed pellagra patient. "Mental symptoms were wider than dementia, in that depression, fatigue, psychomotor retardation, mania, obsessions, and a whole range of psychoses with auditory and visual hallucinations were well described, along with personality change and sociopathic and drug and alcohol addictive behaviours. Panic disorders were seen as was a general inability to deal with physical or mental stress. Poor brain development such as hydrocephalus or cerebral palsy was also common. Acute delirium or even coma occurred, with some patients having myoclonus and other extrapyramidal signs reminiscent of the spongiform encephalopathies. The dementias of pellagra included features akin to Lewy body, Alzheimer?s, frontotemporal, vascular, and prion diseases. Parkinsonism was also common and a festinant gait was first described in pellagrins. Tremors of various descriptions, including asymmetric rest tremors, were noted and some patients had typical paralysis agitans. Pellagrins had a characteristic expressionless facies, so some signs of parkinsonism were present in most cases. Many features of pellagra closely resemble the nonmotor aspects of PD. The neurological manifestation did not stop there because other degenerative conditions, such as an amyotrophic lateral sclerosis-like picture, were described, with fasciculation of the tongue and upper and lower motor neuron signs. Cerebellar syndromes occurred and vertigo was frequent. Headaches, sensory and pain syndromes, epilepsy, and involuntary movements were noted as well as sleep disturbances. Cord lesions were also seen, as was optic atrophy, so there were multiple sclerosis (MS), like variants." It is me again. You can see the neurological symptom's of Pellagra are severe and wide ranging. Taking Niacinamide 3/day for 6 months can alleviate many of these symptom's if your daughter has subclinical pellagra and the doctor's don't know to look for it. I had deep depression for many, many years and I shudder to think now that only a Vitamin could of helped me 30+ years ago and the doctor's didn't know to look for it. Shoot it isn't just Niacin. All B-Vitamin's help your stress levels. IF you have stress B-Vitamins can help your stress levels. I take Folic Acid for Blood pressure problems and it keeps my BP with in a normal range. A article on celac.com discussed this topic in detail a few months ago. https://www.celiac.com/articles/24658/1/A-Differential-Diagnosis-How-Pellagra-Can-be-Confused-with-Celiac-Disease/Page1.html I hope it is helpful. Good luck on your continued journey. If you have never heard of Pellagra you are not alone. Dr. Heaney discusses why this is so in his online article Pellagra and the 4 D's. http://blogs.creighton.edu/heaney/2013/11/18/pellagra-and-the-four-ds/ If you don't have time to read the whole hindawi article I also suggest this shorter but informative blog about why a Niacin deficiency can cause dementia related conditions. https://pellagradisease.wordpress.com/ Then decide for yourself and your daughter's sake to decide whether to take Niacinamide or not to see if it helps the D's symptom's she is experiencing (Digestive, Dementia etc.) The International Journal of Celiac Disease makes note of this in their research that Pellagra could be contributing to symptom's being diagnosed as Celiac disease today instead of a possible (co-morbid) Pellagra that causes the same symptom's. When they discuss how Pellagra and Celiac disease are related (Co-Morbid) in a Celiac diagnosis are surprised to find that in 58% of Celiac's -- can also be diagnosed with Pellagra. See this link http://pubs.sciepub.com/ijcd/3/1/6/ Quoting 3. Pellagra and celiac disease "The two diseases can be connected in two aspects. 58% of pellagra patients were shown to have malabsorption and many had intestinal pathology on biopsies [36, 37]. Alternatively, Pellagra was described in celiac disease [38]. The skin manifestations in pellagra might have some additional etiologies, since multiple nutrient deficiencies are at the origin of the cutaneous manifestations in celiac disease. The following nutritional deficiencies inducing skin rashes, were describe in celiac disease: Zinc, Iron, Vitamin A, E, B12, niacin, folate, selenium and essential fatty acids [39, 40]." If one is being diagnosed incorrectly the other co-morbid conditions can continue to cause Celiac like symptom's. But if the majority of those who have been diagnosed as Celiac could be helped by taking Niacinamide I see no you reason you shouldn't try it. Or at least research it some more. Again good luck on your continued journey. 2 Timothy 2: 7 ?Consider what I say; and the Lord give thee understanding in all things? this included. Posterboy by the grace of God,

Read this posted on the FDA.gov site: https://www.fda.gov/food/guidanceregulation/guidancedocumentsregulatoryinformation/allergens/ucm362880.htm

Color me confused. I went to Costco yesterday and there were 2 products there that had GLUTEN FREE plastered on the box but then in the ingredients was a: May contain wheat. How is this possible? How can they still put gluten-free on the box? We should be able to trust gluten-free labeling no?? And second question: How many of you would still buy that item? I REALLY wanted to buy the Island Way Sorbet for my daughter as it is her FAVE. But I didn't want to take the risk. Maybe when she is healthier? I mean it is SORBET?! LOL So frustrating!

JMG I have never laughed so hard! This was the best epic comment I've read! Thankyou so much! Your all teaching me so much! Love the 'my glass to go' idea!! I will be adopting this... can't believe the mucky glasses we must be drinking from! Shocking! Im still baffled how so many people don't understand cross contamination i.e. The crumbs on the work surface to cut the lime for your tasty beverage! Your all amazing Thankyou x

Yes! I never really had GI symptoms, but I did have palpitations and restless leg syndrome from anemia. These went away within the first month. But myalgia and joint aches aren't better after 1 year. Waiting to get my antibodies re-tested and see if they're negative.....