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Celiac Disease & Gluten-Free Diet Blogs

  • kareng's Blog
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  • An Unmistakeable Journey
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  • The Patient Celiac
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  • Trials and Tribulations
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  • Research on South African Celiac Tours
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  • Melissa.77's Blog
  • Keating's Not-so-Glutenfree life
  • AmandasMommy's Blog
  • Coeliac, or just plain unlucky?
  • bandanamama's Blog
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  • Searchin for a Primary Care Dr. In Redlands That is Knowledgeable about Celiac disease
  • num1habsfan's Blog
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  • Celiac-Positive
  • Jason's Mommy's Blog
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  • I love my plant Cactus <3
  • Chele's Blog
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  • Michael Fowler's Blog
  • Living in Japan with Ceoliac Disease
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  • MJ
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  • HONG KONG GLUTEN, WHEAT FREE PRODUCTS
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  • Healthy Food Healthy You
  • SydneyT1D - Diabetic and Celiac YouTuber!
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  • SMAS: www.celiac.com
  • gardener1's Blog
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  • JordanBattenSymons' Blog
  • JillianC
  • Sugar's Blog
  • Blanche22's Blog
  • Jason's Blog
  • Gluten-Free Sisters :)
  • Eab12's Celiac Blog
  • ohiodad's Blog
  • Newly Self Diagnosed?
  • misscorpiothing's Blog
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  • Petroguy
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  • WhoKnew?'s Blog
  • Soap Opera Central
  • nurcan's Blog
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  • Mr J's Blog
  • Rachel Keating's Blog
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  • krisb's Blog
  • deetee's Blog
  • CAC's Blog
  • EmilyLinn7's Blog
  • Teri Kiefer's Blog
  • happyasabeewithceliac's Blog
  • quietmorning01's Blog
  • jaimekochan's Blog
  • Cheryl
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  • donna mae's Blog
  • Colleen's blog
  • DawnJ's Blog
  • Gluten Challenge
  • twins2's Blog
  • just trying to feel better's Blog
  • Celiac Teen
  • MNBelle blog
  • Gabe351's Blog
  • moosemalibu's Blog
  • Coeliac Disease or Coeliac Sprue or Non Tropical Sprue
  • karalto's Blog
  • deacon11's Blog
  • Nyxie's Blog
  • Swpocket's Blog
  • threeringfilly's Blog
  • Madison Papers: Living Gluten-Free in a Gluten-Full World
  • babinsky's Blog
  • prettycat's Blog
  • Celiac Diagnosis at Age 24 months in 1939
  • Sandy R's Blog
  • mary m's Blog
  • Jkrupp's Blog
  • Oreo1964's Blog
  • keyboard
  • Louisa's Blog
  • Guts & Brains
  • Gluten Free Betty
  • Jesse'sGirl's Blog
  • NewMom's Blog
  • Connie C.'s Blog
  • garden girl's Blog
  • april anne's Blog
  • 4xmom's Blog
  • benalexander60's Blog
  • missmyrtle's Blog
  • Jersey Shore wheat no more's Blog
  • swezzan's Blog
  • aheartsj's Blog
  • MeltheBrit's Blog
  • glutenfreecosmeticcounter
  • Reasons Why Tummy tuck is considered best to remove unwanted belly fat?
  • alfgarrie's Blog
  • SmidginMama's Blog
  • lws' Blog
  • KMBC2014's Blog
  • Musings and Lessons Learned
  • txwildflower65's Blog
  • Uncertain
  • jess4736's Blog
  • deedo's Blog
  • persistent~Tami's Blog
  • Posterboy's Blog
  • jferguson
  • tiffjake's Blog
  • KCG91's Blog
  • Yolo's Herbs & Other Healing Strategies
  • scrockwell's Blog
  • Sandra45's Blog
  • Theresa Marie's Blog
  • Skylark's Blog
  • JessicaB's Blog
  • Anna'sMommy's Blog
  • Skylark's Oops
  • Jehovah witnesses
  • Celiac in Seattle's Blog
  • March On
  • honeybeez's Blog
  • The Liberated Kitchen, redux
  • onceandagain's Blog
  • JoyfulM's Blog
  • keepingmybabysafe's Blog
  • To beer, with love...
  • nana b's Blog
  • kookooto's Blog
  • SunnyJ's Blog
  • Mia'smommy's Blog
  • Amanda's Blog
  • jldurrani's Blog
  • Why choosing Medical bracelets for women online is the true possible?
  • Carriefaith's Blog
  • acook's Blog
  • REAGS' Blog
  • gfreegirl0125's Blog
  • Gluten Free Recipes - Blog
  • avlocken's Blog
  • Thiamine Thiamine Thiamine
  • wilbragirl's Blog
  • Gluten and Maize-Free (gluten-free-MF)
  • Elimination Diet Challenge
  • DJ 14150
  • mnsny's Blog
  • Linda03's Blog
  • GFinDC's Blog
  • Kim UPST NY's Blog
  • cmc's Blog
  • blog comppergastta1986
  • JesikaBeth's Blog
  • Melissa
  • G-Free's Blog
  • miloandotis' Blog
  • Confessions of a Celiac
  • Know the significance of clean engine oil
  • bobhayes1's Blog
  • Robinbird's Blog
  • skurtz's Blog
  • Olivia's Blog
  • Jazzdncr222's Blog
  • Lemonade's Blog
  • k8k's Blog
  • celiaccoach&triathlete's Blog
  • Gluten Free Goodies
  • cherbourgbakes.blogspot.com
  • snow dogs' Blog
  • Rikki Tikki's Blog
  • lthurman1979's Blog
  • Sprue that :)'s Blog
  • twinkletoes' Blog
  • Ranking the best gluten free pizzas
  • Gluten Free Product
  • Wildcat Golfer's Blog
  • Becci's Blog
  • sillyker0nian's Blog
  • txplowgirl's Blog
  • Gluten Free Bread Blog
  • babygoose78's Blog
  • G-freegal12's Blog
  • kelcat's Blog
  • Heavy duty 0verhead crane
  • beckyk's Blog
  • pchick's Blog
  • NOT-IN-2gluten's Blog
  • PeachPie's Blog
  • Johny
  • Breezy32600's Blog
  • Edgymama's Gluten Free Journey
  • Geoff
  • audra's Blog
  • mfrklr's Blog
  • 2 chicks
  • I Need Help With Bread
  • the strong one has returned!
  • sabrina_B_Celiac's Blog
  • Gluten Free Pioneer's Blog
  • Theanine.
  • The Search of Hay
  • Vanessa
  • racecar16's Blog
  • JCH13's Blog
  • b&kmom's Blog
  • Gluten Free Foodies
  • NanaRobin's Blog
  • mdrumr8030's Blog
  • Sharon LaCouture's Blog
  • Zinc, Magnesium, and Selenium
  • sao155's Blog
  • Tabasco's Blog
  • Amanda Smith
  • mmc's Blog
  • xphile1121's Blog
  • golden exch
  • kerrih's Blog
  • jleb's Blog
  • RUGR8FUL's Blog
  • Brynja's Grain Free Kitchen
  • schneides123's Blog
  • Greenville, SC Gluten-Free Blog
  • ramiaha's Blog
  • Kathy P's Blogs
  • rock on!'s Blog
  • Carri Ninja's Blog
  • jerseygirl221's Blog
  • Pkhaselton's Blog
  • Hyperceliac Blog
  • abbiekir's Blog
  • Lasister's Thoughts
  • bashalove's Blog
  • Steph1's Blog
  • Etboces
  • Rantings of Tiffany
  • GlutenWrangler's Blog
  • kalie's Blog
  • Mommy Of A Gluten Free Child
  • ready2go's Blog
  • Maureen
  • Floridian's Blog
  • Bobbie41972's Blog
  • Everyday Victories
  • Intolerance issue? Helpppp!
  • Feisty
  • In the Beginning...
  • Cheri46's Blog
  • Acne after going gluten free
  • sissSTL's Blog
  • Elizabeth19's Blog
  • LindseyR's Blog
  • sue wiesbrook's Blog
  • I'm Hungry's Blog
  • badcasper's Blog
  • M L Graham's Blog
  • Wolicki's Blog
  • katiesalmons' Blog
  • CBC and celiac
  • Kaycee's Blog
  • wheatisbad's Blog
  • beamishmom's Blog
  • Celiac Ninja's Blog
  • scarlett54's Blog
  • GloriaZ's Blog
  • Holly F's Blog
  • Jackie's Blog
  • lbradley's Blog
  • TheSandWitch's Blog
  • Ginger Sturm's Blog
  • The Struggle is Real
  • whataboutmary's Blog
  • JABBER's Blog
  • morningstar38's Blog
  • Musings of a Celiac
  • Celiacchef's Blog
  • healthygirl's Blog
  • allybaby's Blog
  • MGrinter's Blog
  • LookingforAnswers15's Blog
  • Lis
  • Alilbratty's Blog
  • 3sisters' Blog
  • MGrinter's Blog
  • Amanda
  • felise's Blog
  • rochesterlynn's Blog
  • mle_ii's Blog
  • GlamourGetaways' Blog
  • greendog's Blog
  • Tabz's Blog
  • Smiller's Blog
  • my vent
  • newby to celiac?'s Blog
  • siren's Blog
  • myraljo's Blog
  • Relieved and confused
  • carb bingeing
  • scottish's Blog
  • maggiemay832's Blog
  • Cristina Barbara
  • ~~~AnnaBelle~~~'s Blog
  • nikky's Blog
  • Suzy-Q's Blog
  • mfarrell's Blog
  • Kat-Kat's Blog
  • Kelcie's Blog
  • cyoshimit's Blog
  • pasqualeb's Blog
  • My girlfriend has celiacs and she refuses to see a doctor
  • Ki-Ki29's Blog
  • mailmanrol's Blog
  • Sal Gal
  • WildBillCODY's Blog
  • Ann Messenger
  • aprilz's Blog
  • the gluten-free guy
  • gluten-free-wifey's Blog
  • Lynda MEADOWS's Blog
  • mellajane's Blog
  • Jaded's Celiac adventures in a non-celiac world.
  • booboobelly18's Blog
  • Dope show
  • Classic Celiac Blog
  • Keishalei's Blog
  • Bada
  • Sherry's blurbs
  • addict697's Blog
  • MIchael530btr's Blog
  • Shawn C
  • antono's Blog
  • Undiagnosed
  • little_d's Blog
  • Gluten, dairy, pineapple
  • The Fat (Celiac) Lady Sings
  • Periomike
  • Sue Mc's Blog
  • BloatusMaximus' Blog
  • It's just one cookie!
  • Kimmy
  • jacobsmom44's Blog
  • mjhere's Blog
  • tlipasek's Blog
  • You're Prescribing Me WHAT!?!
  • Kimmy
  • nybbles's Blog
  • Karla T.'s Blog
  • Young and dealing with celiacs
  • Celiac.com Podcast Edition
  • LCcrisp's Blog
  • ghfphd's allergy blog
  • https://www.bendglutenfree.com/
  • Costume's and GF Life
  • mjhere69's Blog
  • dedeadge's Blog
  • CeliacChoplin
  • Ravenworks' Blog
  • ahubbard83's Blog
  • celiac<3'sme!'s Blog
  • William Parsons
  • Gluten Free Breeze (formerly Brendygirl) Blog
  • Ivanna44's Blog
  • Daily Life and Compromising
  • Vonnie Mostat
  • Aly'smom's Blog
  • ar8's Blog
  • farid's Blog
  • Sandra Lee's Blog
  • Demertitis hepaformis no Celac
  • Vonnie Mostat, R.N.
  • beetle's Blog
  • Sandra Lee's Blog
  • carlyng4's Blog
  • totalallergyman's Blog
  • Kim
  • Vhips
  • twinsmom's Blog
  • Newbyliz's Blog
  • collgwg's Blog
  • Living in the Gluten Free World
  • lisajs38's Blog
  • Mary07's Blog
  • Treg immune celsl, short chain fatty acids, gut bacteria etc.
  • questions
  • A Blog by Yvonne (Vonnie) Mostat, RN
  • ROBIN
  • covsooze's Blog
  • HeartMagic's Blog
  • electromobileplace's Blog
  • Adventures of a Gluten Free Mom
  • Fiona S
  • bluff wallace's Blog
  • sweetbroadway's Blog
  • happybingf's Blog
  • Carla
  • jaru24's Blog
  • AngelaMH's Blog
  • collgwg's Blog
  • blueangel68's Blog
  • SimplyGF Blog
  • Jim L Christie
  • Debbie65's Blog
  • Alcohol, jaundice, and celiac
  • kmh6leh's Blog
  • Gluten Free Mastery
  • james
  • danandbetty1's Blog
  • Feline's Blog
  • Linda Atkinson
  • Auntie Lur: The Blog of a Young Girl
  • KathyNapoleone's Blog
  • Gluten Free and Specialty Diet Recipes
  • Why are people ignoring Celiac Disease, and not understanding how serious it actually is?
  • miasuziegirl's Blog
  • KikiUSA's Blog
  • Amyy's Blog
  • Pete Dixon
  • abigail's Blog
  • CHA's Blog
  • Eczema or Celiac Mom?'s Blog
  • Thoughts
  • International Conference on Gastroenterology
  • Deedle's Blog
  • krackers' Blog
  • cliniclfortin's Blog
  • Mike Menkes' Blog
  • Juanita's Blog
  • BARB OTTUM
  • holman's Blog
  • It's EVERYWHERE!
  • life's Blog
  • writer ann's Blog
  • Ally7's Blog
  • Gluten Busters: Gluten-Free Product Alerts by Celiac.com
  • K Espinoza
  • klc's Blog
  • Pizza&beer's Blog
  • CDiseaseMom's Blog
  • sidinator's Blog
  • Dr Rodney Ford's Blog
  • How and where is it safe to buy cryptocurrency?
  • lucedith's Blog
  • Random Thoughts
  • Kate
  • twin#1's Blog
  • myadrienne's Blog
  • Nampa-Boise Idaho
  • Ursa Major's Blog
  • bakingbarb's Blog
  • Does Celiac Cause Sensitivites To Rx's?
  • delana6303's Blog
  • psychologygrl25's Blog
  • Alcohol and Celiac Disease
  • How do we get it???
  • cooliactic_BOOM's Blog
  • GREAT GF eating in Toronto
  • Gluten-free Food Recommendations!
  • YAY! READ THIS!!
  • BROW-FREE DIET BLOG
  • carib168's Blog
  • A Healing Kitchen
  • Shawn s
  • AZ Gal's Blog
  • mom1's Blog
  • The Beginning - The Diagnosis
  • PeweeValleyKY's Blog
  • solange's Blog
  • Cate K's Blog
  • Layered Vegetable Baked Pasta (gluten-free Vegetarian Lasagna)
  • Gluten Free Teen by Ava
  • mtdawber's Blog
  • sweeet_pea's Blog
  • DCE's Blog
  • Infertility and Celiac Disease
  • What to do in the Mekong Delta in 1 Day?
  • glutenfreenew's Blog
  • Living in the Garden of Eden
  • toddzgrrl02's Blog
  • redface's Blog
  • Gluten Free High Protein
  • Ari
  • Great Harvest Chattanooga's Blog
  • CeliBelli's Blog
  • Aboluk's Blog
  • redface's Blog
  • Being in Control of Your Gluten-Free Diet on a Cruise Ship
  • jayshunee's Blog
  • lilactorgirl's Blog
  • Yummy or Yucky Gluten-Free Foods
  • Electra's Blog
  • Cocerned husband's Blog
  • lilactorgirl's Blog
  • A Little History - My Celiac Disease Diagnosis
  • How to line my stomach
  • sewfunky's Blog
  • Oscar's Blog
  • Chey's Blog
  • The Fun of Gluten-free Breastfeeding
  • Dawnie's Blog
  • Sneaky gluten free goodness!
  • Chicago cubs shirts- A perfect way of showing love towards the baseball team!
  • Granny Garbonzo's Blog
  • GFzinks09's Blog
  • How do I get the Celiac.com podcast on my mp3 player?
  • quantumsugar's Blog
  • Littlebit's Blog
  • Kimberly's Blog
  • Dayz's Blog
  • Swimming Breadcrumbs and Other Issues
  • Helen Burdass
  • celiacsupportnancy's Blog
  • Life of an Aggie Celiac
  • kyleandjra.jacobson's Blog
  • Hey! I'm Not "Allergic" to Wheat!
  • FoOdFaNaTic's Blog
  • Wendy Cohan, RN's Gluten-Free and Dairy-Free Cooking Classes
  • Lora Derry
  • Dr. Joel Goldman's Blog
  • The Ultimate Irony
  • Lora Derry
  • ACK514's Blog
  • katinagj's Blog
  • What Goes On, Goes In (Gluten in Skin Care Products)
  • What’s new in hydraulic fittings?
  • cannona3's Blog
  • citykatmm's Blog
  • Adventures in Gluten-Free Toddling
  • tahenderson67's Blog
  • The Dinner Party Drama—Two Guidelines to Assure a Pleasant Gluten-Free Experience
  • What’s new in hydraulic fittings?
  • sparkybear's Blog
  • justbikeit77's Blog
  • To "App" or Not to "App": The Use of Gluten Free Product List Computer Applications
  • Onangwatgo
  • Raine's Blog
  • lalla's Blog
  • To die for Cookie Crumb Gluten-Free Pie Crust
  • DeeTee33's Blog
  • http://glutenfreegroove.com/blog/
  • David2055's Blog
  • Gluten-Free at the Fancy Food Show in San Francisco
  • Kup wysokiej jakości paszporty, prawa jazdy, dowody osobiste
  • Janie's Blog
  • Managing Hives & Gluten Allergies
  • Bogaert's Blog
  • Janie's Blog
  • RaeD's Blog
  • Dizzying Disclaimers!
  • Dream Catcher's Blog
  • PinkZebra's Blog
  • Hibachi Food and Hidden Gluten Hazards (How to Celebrate Gluten-Free)
  • jktenner's Blog
  • OhSoTired's Blog
  • PinkZebra's Blog
  • gluten-free Lover's Blog
  • Gluen Free Health Australia
  • Melissamb21's Blog
  • Andy C's Blog
  • halabackgirl9129's Blog
  • Liam Edwards' Blog
  • Celiac Disease in Africa?
  • Suz's Blog
  • Gluten-Free Fast Food
  • mis_chiff's Blog
  • gatakat's Blog
  • macocha's Blog
  • Newly Diagnosed Celiacs Needed for Study in Chicago
  • Poor Baby's Blog
  • the loonie celiac's Blog
  • jenlex's Blog
  • Sex Drive/Testosterone can be Depleted by Certain Foods
  • samantha79's Blog
  • 21 Months into the Gluten-free Diet
  • WashingtonLady's Blog-a-log
  • James S. Reid's Blog
  • Living with a Gluten-Free Husband
  • runner girl's Blog
  • kp3972's Blog
  • ellie_lynn's Blog
  • trayne91's Blog
  • Gluten-free Lipstick!
  • Nonna2's Blog
  • Schar Chocolate Hazelnut Bar (Gluten-Free)
  • pnltbox27's Blog
  • Live2BWell's Blog
  • melissajohnson's Blog
  • nvsmom's Blog
  • Diagnosed with Celiac Disease and Still Sick
  • snowcoveredheart's Blog
  • Gluten Free Nurse
  • Gluten-Free Frustration!
  • Melody A's Blog
  • novelgutfeeling's Blog
  • Trouble Eating Out Gluten-Free...Good or Bad?!
  • dilsmom's Blog
  • theceliachusband's Blog
  • amanda2610's Blog
  • Pancreas and Celiac Disease Link?
  • epiphany's Blog
  • Patty55's Blog
  • The Latest Gluten-Free Food Recalls
  • kenzie's blog
  • CVRupp's Blog
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Found 13 results

  1. Celiac.com 10/19/2021 - There is some data to indicate a connection between celiac disease and IgA nephropathy (IgAN). In celiac disease IgA-class tissue transglutaminase (tTG) autoantibodies are seen in the small bowel mucosa and extraintestinal organs, in addition to circulating in serum. A team of researchers recently studied whether celiac disease-type IgA-tTG deposits occur in kidney biopsies in a case series of IgAN patients with or without celiac disease. The research team included Rakel Nurmi, Ilma Korponay-Szabó, Kaija Laurila, Heini Huhtala, Onni Niemelä, Jukka Mustonen, Satu Mäkelä, Katri Kaukinen, and Katri Lindfors. They are variously affiliated with the Celiac Disease Research Center, Faculty of Medicine and Health Technology, Tampere University in Tampere, Finland; the Celiac Disease Center, Heim Pál National Pediatric Institute in Budapest, Hungary; the Department of Pediatrics, Faculty of Medicine and Clinical Center, University of Debrecen in Debrecen, Hungary; the Faculty of Social Sciences, Tampere University in Tampere, Finland; the Medical Research Unit, Seinäjoki Central Hospital in Seinäjoki, Finland; and the Department of Internal Medicine, Tampere University Hospital in Tampere, Finland The team looked at nine IgAN patients, four of whom had celiac disease. The team measured serum tTG autoantibodies at the time of the diagnostic kidney biopsy, and looked at colocalization of IgA and tTG in the frozen kidney biopsies. The results showed IgA-tTG deposits in the kidneys of three IgAN patients with celiac disease though two patients had been diagnosed with celiac disease years later. They fund no deposits in a known celiac disease patient who was following a gluten-free diet. Of the five non-celiac IgAN patients, three showed IgA-tTG deposits in their kidneys. From their small study, the team concludes that tTG-targeted IgA deposits can be found in the kidney biopsies of gluten-consuming IgAN patients, but they likely won't be much help in spotting celiac disease, due to limited specificity. Read more in Nutrients

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  3. Celiac.com 02/17/2020 - Celiac disease is a common inflammatory autoimmune disorder triggered when dietary gluten causes intestinal damage in genetically susceptible people who have either of two genes, the HLA-DQ8 or HLA-DQ2 haplotypes. More and more, doctors see a need to come up with non-dietary treatments, but there is currently no good gluten- and HLA-dependent model. Human data has led to a great deal of information about the origins of celiac disease, but no one has yet revealed the roles of disease-predisposing HLA molecules, and of adaptive and innate immunity in celiac-related tissue damage. A large team of top researchers recently set out to determine if interleukin-15 gluten and HLA-DQ8 drive tissue destruction in celiac disease. The research team included Valérie Abadie, Sangman M. Kim, Thomas Lejeune, Brad A. Palanski, Jordan D. Ernest, Olivier Tastet, Jordan Voisine, Valentina Discepolo, Eric V. Marietta, Mohamed B. F. Hawash, Cezary Ciszewski, Romain Bouziat, Kaushik Panigrahi, Irina Horwath, Matthew A. Zurenski, Ian Lawrence, Anne Dumaine, Vania Yotova, Jean-Christophe Grenier, Joseph A. Murray, Chaitan Khosla, Luis B. Barreiro and Bana Jabri. The team used a mouse model to mimic the over-expression of interleukin-15 (IL-15) in the gut epithelium and lamina propria that marks active celiac disease, carries HLA-DQ8, and shows villous atrophy after gluten exposure. For villous atrophy to occur, IL-15 must be over-expressed in both the epithelium and the lamina propria, which shows the crucial role of IL-15 in the development of celiac disease. Moreover, CD4+ T cells and HLA-DQ8 play a central part in permitting cytotoxic T cells to mediate intestinal epithelial cell lysis. The team's results also demonstrate a role for the cytokine interferon-γ (IFNγ) and the enzyme transglutaminase 2 (TG2) in tissue destruction. By revealing the intricate interplay between gluten, genetics and IL-15-driven tissue inflammation, this mouse model casts light on the mechanisms behind celiac disease, and may help to drive the development of new treatments. Read more at Nature.com The researchers are variously affiliated with the Department of Medicine, University of Chicago, Chicago, IL, USA, Department of Medicine, Section of Genetic Medicine, University of Chicago, Chicago, IL, USA; Committee on Immunology, University of Chicago, Chicago, IL, USA; the Department of Biology, University of San Francisco, San Francisco, CA, USA; the Department of Chemistry, Stanford University, Stanford, CA, USA; the Department of Chemical Engineering, Stanford University, Stanford, CA, USA; the Stanford ChEM-H, Stanford University, Stanford, CA, USA; the Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, USA; the Department of Immunology, Mayo Clinic, Rochester, MN, USA; the Department of Dermatology, Mayo Clinic, Rochester, MN, USA; the Department of Microbiology, Infectiology, and Immunology, Faculty of Medicine, University of Montreal, Montreal, Quebec, Canada; the Department of Genetics, Sainte-Justine Hospital Research Centre, University of Montreal, Montreal, Quebec, Canada; Department of Pediatrics, Faculty of Medicine, University of Montreal, Montreal, Quebec, Canada; the Sainte-Justine Hospital Research Centre, University of Montreal, Montreal, Quebec, Canada.
  4. Celiac.com Article:Have Researchers Found the Destructive Key Behind Celiac Disease? View full article
  5. Celiac.com 10/13/2017 - Tissue transglutaminase (tTG) immunoglobulin A (IgA) testing is a sensitive adjunct to the diagnosis of coeliac disease. The threshold for positivity was developed for diagnosis, with negative results reported as below the reference value (<4 U/mL). A team of researchers recently set out to investigate if an undetectable tissue transglutaminase IgA antibodies (tTG IgA<1.2 U/mL) is more predictive of healing compared to patients with negative but detectable serology (1.2-3.9 U/mL). The research team included H. Fang, K. S. King, J. J. Larson, M. R. Snyder, T. T. Wu, M. J. Gandhi, and J. A. Murray. They are variously affiliated with the Department of Medicine, the Division of Gastroenterology and Hepatology, the Division of Anatomic Pathology, the Division of Clinical Biochemistry and Immunology, the Division of Biomedical Statistics and Informatics, and the Division of Transfusion Medicine at the Mayo Clinic, Rochester, MN, USA. The research team conducted a retrospective study of 402 treated coeliac disease patients seen at the Mayo Clinic with negative tTG IgA values drawn within 1 month of duodenal biopsy between January 2009 and December 2015. The team used Corazza-Villanacci scores to assess mucosal healing, and logistic regression to assess the relationship of clinical variables with a normal biopsy. They also noted the presence of gastrointestinal symptoms. Their results showed that patients with undetectable test levels more frequently had normal duodenal histology, as compared with patients with detectable tTG IgA levels. Asymptomatic patients more often showed normal duodenal histology as compared to symptomatic patients. Patients with undetectable blood levels, and who followed a gluten-free diet for ≥2 years were more likely to have no villous atrophy, as compared to patients with detectable blood levels. Follow-up biopsies revealed that people recovering from celiac disease with negative tTG IgA serology showed that undetectable test levels are associated with normal histology. Source: AP&T
  6. Celiac.com 06/29/2012 - A group of researchers recently set out to study cases of positive tissue transglutaminase antibodies with negative endomysial antibodies to determine whether or not such cases amount to celiac disease. The team included Thomas Hornung; Pavel Gordins; Clare Parker; and Nicholas Thompson. They are variously affiliated with the departments of Gastroenterology, and Immunology at the Northern Deanery of Newcastle upon Tyne, and with the department of Gastroenterology at Freeman Hospital in Newcastle upon Tyne in the UK. The most sensitive and specific blood tests for diagnosing celiac disease are those that detect immunoglobulin A (IgA) antibodies against human tissue transglutaminase (tTGA) enzyme, and those that measure aspects of connective tissue covering individual smooth muscle fibers, endomysial antibodies (EMA). Because of the high sensitivity (up to 98%) and high specificity (around 96%) reported for the tTGA assay, detection of tTGA is currently the primary blood test used in screening for celiac disease. The tTGA test also has a high negative predictive value approaching 100%, which makes it an excellent test for excluding celiac disease in both high and low risk groups. In contrast, positive predictive value of the tTGA test is rather poor with values between 28.6% and 60.2% being reported in several studies. EMA, on the other hand, has extremely high specificity values close to 100% and positive predictive value values approaching 80%.[5 10] However, compared with tTGA, EMA has lower sensitivity, usually under 90%. This being the case, the present standard celiac disease screening strategy is to first use tTGA, and then confirm positive results using EMA. However, doing it this way, doctors often end up with a group of patients who show divergent test results. For their study, the researchers wanted to gauge the percentage of patients with positive tTGA and negative EMA, but who were confirmed with celiac disease upon biopsy, and to identify factors in these patients that may help to increase diagnostic accuracy in such patients. The research team identified 125 consecutive patients with positive tTGA and negative EMA, who subsequently underwent endoscopy with at least two biopsies from the second part of the duodenum. The team charted any tTGA result over 15 U/ml as positive. They excluded any patients with known celiac disease at the time of testing. They then reviewed patient notes to assess indications for celiac disease serological screening, including the presence of iron deficiency anaemia, and symptoms such as diarrhea or weight loss, and family history of celiac disease. They defined diarrhea as a bowel frequency of more than three times a day. They then assessed histological evidence of celiac disease based on subsequent duodenal biopsies, plus Marsh grading. In cases where patient histology was unclear, they relied on the clinical assessment of a consulting gastroenterologist. Unclear histology included minimal/mild increase in intraepithelial lymphocytes of not more than 30 per 100 enterocytes and without villous atrophy, plus mild villous blunting with no increase in intraepithelial lymphocytes. They then categorized patients as either celiac disease negative, or celiac disease positive. Patients with no histological evidence of celiac disease on duodenal biopsies or equivocal histology plus overall clinical impression of celiac disease absence were categorized as celiac disease negative. Patients with histological evidence of celiac disease on duodenal biopsies or equivocal histology plus overall clinical impression of celiac disease presence were categorized as celiac disease positive. To measure IgA anti-tTGA antibody the team used a commercially available enzyme linked immunosorbent assay called Aeskulisa, manufactured by Aesku Diagnostics GmbH in Wendelsheim, Germany. To detect IgA anti-EMA with the standard immunofluorescent method, they used commercial slides of monkey oesophagus sections (Euroimmun, Euroimmun AG, Lübeck, Germany). They used conjugated sheep antihuman IgA as a secondary antibody, relying on a test manufactured by Instrumentation Laboratory UK Ltd., in Warrington, UK. Overall, the team categorized 113 patients (90.4%) as celiac disease negative. Of these, 102 patients had no histological features of celiac disease, while 11 patients had unclear histology plus an overall clinical impression of not having celiac disease. They categorized twelve patients (9.6%) as celiac disease positive. Of these, 10 patients had positive histology, and two patients had unclear histology plus an overall clinical impression of having celiac disease. Of those with positive histology, 17% were Marsh grade I, 8% were Marsh grade II, 33% were Marsh grade IIIa, 17% were Marsh grade IIIb and 25% were Marsh grade IIIc. Those with celiac disease were more likely to be older and to have a higher tTGA level. The groups showed no difference in any clinical parameter. Source: Frontline Gastroenterol. 2012;3(2):81-83.

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  8. Celiac.com 12/08/2008 - Celiac disease is a life-long autoimmune enteropathy that results in damage to the small intestinal mucosa. When people with celiac disease eat the gluten proteins found in wheat, rye and barley, they damage the cells that line the small intestine, which interferes with normal digestion and absorption of nutrients. Recent studies have shown that most people present with a silent, non-diarrheal form of the disease, and show no obvious symptoms. People with celiac disease face rates of autoimmune disease that are10 times higher than the general population. People with untreated celiac disease have higher rates of thyroid problems, which generally improve with the adoption of a gluten-free diet. A connection between the span of gluten consumption and autoimmune diseases has been observed in people with celiac disease. Tissue transglutaminase (TGase) is a ubiquitous enzyme and manifests in all tissues, with both intra- and extracellular localization. A team of researchers recently set out determine if tissue transglutaminase-2 IgA antibodies (anti-TGase II) present in blood samples from celiac disease patients react with thyroid tissue and possibly contribute to thyroid disease. The research team made up of doctors Afzal J. Naiyer, Jayesh Shah, Lincoln Hernandez, Soo-Youl Kim, Edward J. Ciaccio, Jianfeng Cheng, Sanil Manavalan, Govind Bhagat, and Peter H.R.Green. The team took blood samples from 40 people with active celiac disease, but not following a gluten free diet, samples from 46 celiac patients on a gluten-free diet (celiac disease), 40 normal controls (NC), and 25 with Crohn’s disease. They screened all samples for anti-thyroperoxidase antibodies (TPO-AB) and thyroglobulin antibodies (TG-AB), and conducted indirect immunofluorescence on primate thyroid tissue sections using TPO-AB– and TG-AB–negative blood samples. The team performed indirect immunofluorescence on thyroid seronegative, anti-TGase II–positive celiac disease+ blood samples (n1/423) and observed staining patterns on thyroid follicular cells and extracellular matrices that was identical with monoclonal anti-human TGase II antibody. Signs of TGase II as the antigen in thyroid tissue were reinforced by elimination of the IIF pattern when sera were depleted of anti-TGase II by pretreatment with human recombinant TGase II. The team saw no such staining of thyroid tissue in blood samples from celiac disease patients who were negative for TGase II antibodies, or samples from the non-celiac control group. Thyroid antibodies were found in 43% of celiac disease+ patients, substantially higher than NC and CROHN patients ( p < 0.0001). Moreover, a positive correlation was observed between anti-TGase II and TPO-AB titers (p1/40.0001; r1/40.63). The results show that anti-TGase II antibodies bind to TGase II in thyroid follicles and extracellular matrix, and that titers correlate with TPO antibody titers. This indicates that anti-TGase II antibodies might contribute to the development of thyroid disease in people with celiac disease. Thyroid Volume 18, Number 11, 2008
  9. Celiac.com 08/26/2015 - People with IgA antibodies to tissue transglutaminase (anti-tTg) likely have a higher risk for celiac disease. Some clinicians and researchers have suggested that common multiples of the upper limit of normal (ULN) be useful tool in improving diagnostic pathways, as well as continuity between tests. However, a new study suggests that both sensitivity and specificity of tests for IgA antibodies to tissue transglutaminase vary widely by individual kit, and that their test values are not easily commutable using common multiples of the ULN to correct for inter-assay variations. Commutability just means the ability to make sure that two different tests really are equal. If results of different tests are commutable, it means that they are equal. In this case, the term applies to test results for various representative samples from healthy and diseased individuals. For the study, the research team recently looked at the use of immunoassays for the detection of IgA antibodies to tissue transglutaminase, and also sought to better understand of the significance of multiples of the upper limit of normal and inter-assay correlations. The research team included B.B. Suh-Lailam, K.W. Davis, and A.E. Tebo. Using indirect immunofluorescence assay (IFA) as reference, the team assessed characteristics of four anti-tTG IgA assays relative to endomysial IgA (EMA). They also assessed commutability between anti-tTG immunoassays and/or EMA based on manufacturer's recommended cut-off values and three common multiples of ULN (3×, 5× and 10×). To do this, they analyzed samples from 200 patients and 100 healthy individuals. They found that, at manufacturer's cut-off, the sensitivities for the tTG assays ranged from 72.5% to 98.6% and specificities from 60.3% to 99.2%. The percent positive agreements between any anti-tTG and EMA or any two anti-tTG immunoassays varied from 56.7% to 98.0% and 46.7% to 100.0%, respectively. At 3×, 5× or 10× ULNs, the inter-rater reliability as measured by Cohen κ between any two anti-tTG assays were quite variable and ranged from 0.28 to 0.96, 0.26 to 0.89 or 0.13 to 0.78, respectively. Furthermore, the percent positive agreements between any two anti-tTg IgA immunoassays ranged from 83.1% to 98.2%, 92.0% to 100%, or 100%, at 3×, 5× or 10×, respectively. Hence, the team's basic takeaway that result parameters for tTG IgA immunoassays or tTG IgA and EMA vary by kit, and thus common multiples of the ULN are not enough to correct for variation between tests. Source: Clin Chem Lab Med. 2015 Jul 14. doi: 10.1515/cclm-2015-0348.
  10. Celiac.com 02/24/2012 - Currently, testing for anti tissue-transglutaminase antibodies is the standard of celiac disease blood testing. The test has a high sensitivity in patients who are eating a diet that contains gluten, but poor sensitivity for people on a gluten-free diet. So, it's not much use for measuring gluten-free diet success in people with celiac disease. A research team set out to determine if a new test might be more useful than current standard in assessing long-term gluten exposure in celiac disease patients attempting to follow a gluten-free diet. The new test measures Immunoglobulin-A antibodies to catalytically active open conformation tissue-transglutaminase. The study team included K. Pallav, D. A. Leffler, M. Bennett, S. Tariq, H. Xu, T. Kabbani, A. C. Moss, M. Dennis, C. P. Kelly, D. Schuppan. They are affiliated with the Celiac Center of the Beth Israel Deaconess Medical Center at Harvard Medical School in Boston. The team made a preliminary dietary assessment of 147 patients with celiac disease, and grouped them according to good or poor compliance to a gluten-free diet. The team used 50 patients with inflammatory bowel disease as a control group. The team then measured both open (new test) and closed (conventional) tissue-transglutaminase levels using standard enzyme linked immunosorbent assay. The team's initial dietary review indicated that 128 of the celiac patients had followed a gluten free diet for more than six months. They found 19 to have poor compliance to a gluten-free diet. Of the 19 who had poor adherence to a gluten-free diet, the team found 13 patients (68.4%) who tested positive using open conformation assay (p=0.51), while ten of the 19 patients (52.6%) tested positive using conventional assay (p=0.51). In the control group, just two patients tested positive using closed assay, while one tested positive using open assay. The team concluded that, compared to conventional testing, open conformation tissue-transglutaminase may offer greater sensitivity in the poor gluten-free diet adherence group and higher specificity in the control population. The team suggests studies on larger populations to determine whether open conformation tissue-transglutaminase assay may be superior to the conventional assay in measuring compliance with a gluten-free diet. Source: Dig Liver Dis. 2012 Jan 17.
  11. Pediatrics 2005;115:1341-1346. Celiac.com 05/31/2005 – According to Canadian researchers, the use of Tissue Transglutaminase Antibody (tTG) Screening may soon replace the use of the small bowel biopsy to diagnose celiac disease in children. The researchers reviewed the charts of 103 children who were screened for celiac disease using both small bowel biopsy and tTG. Fifty-eight of the children were found to have positive biopsy results, and out of these, 48 had very high tTG levels (over 100 U), 7 had middle tTG levels (20-100 U), and 3 had low levels (less than 20 U). Out of the 49 children with the highest tTG levels, all but one of them had a positive biopsy result. There were 3 biopsy-positive children who had low tTG levels, two who were found to be IgA negative, and one who had a duodenal ulcer. According to the researchers, using tTG values of greater than 100 U and less than 20 U, and knowing the patients IgA status, tTG testing was "98% sensitive and 97% specific in detecting celiac disease." The researchers also point out that the cost of diagnosis could be cut by 30% by utilizing tTG screening. The researchers conclude that children with high tTG titers can proceed straight to a gluten-free diet--if they respond well then their diagnosis is confirmed—if not they can proceed to a biopsy. Although the authors dont address this issue specifically, this method would likely lead to an increase in the diagnosis rate of celiac disease, as many people are unwilling to undergo a biopsy--or have their children undergo one.
  12. Celiac.com 12/12/2004 - A new study that was presented on November 1, 2004 by Julian Abrams, MD, and colleagues from Columbia University Medical Center in New York City at the American College of Gastroenterology (ACG) 69th Annual Scientific Meeting indicates that using only antibody to tissue transglutaminase (tTG) to diagnose celiac disease will likely result in missed diagnoses—and the accuracy of the tTG results depends on which lab conducts the test. Many clinical studies during the past few years have indicated that tTG testing is as accurate as endomyosial antibody (EMA), which has caused many labs to use tTG rather than EMA, and even the recent National Institutes of Health Consensus Conference on Celiac Disease advocated the use of tTG over EMA. In the study the researchers evaluated the effectiveness of tTG in a general referral practice medical setting by reviewing 137 patients who had duodenal biopsy and tTG testing for celiac disease, out of which 117 were biopsy confirmed. Serum from these individuals was sent to four different commercial laboratories for analysis, and the results from these labs were compared. The average tTG sensitivity overall was 71% with a specificity of 67%. In patients with total villous atrophy sensitivity was as high as 92%, and in those with only partial villous atrophy it was as low as 38%. One of the four laboratories tested samples from 48 of the patients and their sensitivity was only 51%, while the specificity was 100%. According to these results it appears that tTG testing—at least outside of the clinical study setting—may not be accurate, and its accuracy depends heavily on which lab is used. Unfortunately the researchers did not reveal the names of the commercial laboratories used in their study, but we hope they will do so when the study is published.
  13. J Pediatr. 2004 May;144(5):632-6 Celiac.com 05/10/2004 - Italian researchers compared the serum samples from 39 celiac disease patients who were diagnosed with celiac disease after their first biopsy with 32 controls who had normal duodenal mucosa and 32 healthy volunteers. Salivary transglutaminase autoantibodies were detected in 97.4% of the patients who had celiac disease, and in 100% of their corresponding serum samples. All of the 32 healthy volunteers tested negative for both serum and saliva transglutaminase autoantibodies. The researchers conclude "This study demonstrates that it is possible to detect salivary transglutaminase autoantibodies in celiac disease with a non-invasive, simple to perform, reproducible and sensitive method."
  14. The following is an abstract of an article which was recently published in Clinical and Diagnostic Immunology (1996; 3:143-146), and was sent to me by Kevin Lawson. If you have any questions about it you can e-mail him at: IMMTEST@AOL.COM Vijay Kumar (1,2), J.E. Valeski (1,2) and Jacobo Wortsman (3) IMMCO Diagnostics, Inc.,1 Departments of Microbiology and Dermatology, State University of New York at Buffalo,2 Buffalo, New York, and Department of Internal Medicine, School of Medicine, Southern Illinois University, Springfield, Illinois. Celiac disease (celiac disease) is a gluten-sensitive enteropathy characterized by the presence of serum antibodies to endomysial reticulin and gliadin antigens. celiac disease has been associated with various autoimmune endocrine disorders, such as diabetes. We report a rare case of idiopathic hypoparathyroidism with coexistent celiac disease characterized by the presence of serum autoantibodies. Studies were conducted to determine the specificities of these autoantibodies and to localize the antibody binding sites by indirect immunofluorescence and immunoelectron microscopy. Sera from a patient with idiopathic hypoparathyroidism and celiac disease and from two patients with celiac disease alone were tested by indirect immunofluorescence for autoantibodies to parathyroid and endomysial antigens. The specificities of the antibody reactions were determined by testing the sera before and after absorption with monkey stomach tissue. In addition, immunoelectron microscopic studies were performed to determine the localization of the endomysial antigen. Indirect-immunofluorescence studies on the patients serum were positive with a parathyroid as well as the endomysial substrate. Similar reactions were also observed with the sera of endomysial antibody-positive patients with celiac disease. Absorption of the sera with monkey stomach powder, which is known to have the endomysial antigen, abolished the antibody activities on both the endomysial substrate and the parathyroid tissue. Immunoelectron microscopic studies showed that endomysial antibody activity was associated with antigens localized on the myocyte plasma membrane and in the intercellular spaces. Thus, reactions of the patient s serum with the parathyroid tissue were due to endomysial antibodies and were not parathyroid specific as in patients with idiopathic hypoparathyroidism who did not have coexistent celiac disease. In conclusion, indirect-immunofluorescence tests on parathyroid tissue detect not only tissue-specific antibodies but also cross-reactive antibodies, and this should be taken into consideration when these tests are performed.
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