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Real Talk: Eosinophilic Diseases

Real Talk: Eosinophilic Diseases

By: American Partnership for Eosinophilic Disorders
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 Eosinophils are a type of white blood cell that play a role in immune responses and help fight off infections. When these cells build up and cause inflammation in the digestive system, tissues, organs, and/or bloodstream, without a known cause, it may be the result of an eosinophil-associated disease. Join the American Partnership for Eosinophilic Disorders (APFED) for a series of conversations with researchers, clinicians, patients, and other community members as we discuss practical strategies for disease management and treatments, research, and other topics of interest.© American Partnership for Eosinophilic Disorders (APFED) Hygiene & Healthy Living Physical Illness & Disease
Episodes
  • Bone Mineral Density in Pediatric Eosinophilic Esophagitis

    Bone Mineral Density in Pediatric Eosinophilic Esophagitis
    Jun 24 2025
    Description: Co-hosts Ryan Piansky, a graduate student and patient advocate living with eosinophilic esophagitis (EoE) and eosinophilic asthma, and Holly Knotowicz, a speech-language pathologist living with EoE who serves on APFED’s Health Sciences Advisory Council, interview Anna Henderson, MD, a pediatric gastroenterologist at Northern Light Health in Maine, about bone mineral density in EoE patients. They discuss a paper she co-authored on the subject. Disclaimer: The information provided in this podcast is designed to support, not replace, the relationship that exists between listeners and their healthcare providers. Opinions, information, and recommendations shared in this podcast are not a substitute for medical advice. Decisions related to medical care should be made with your healthcare provider. Opinions and views of guests and co-hosts are their own. Key Takeaways: [:50] Co-host Ryan Piansky introduces the episode, brought to you thanks to the support of Education Partners Bristol Myers Squibb, Sanofi, Regeneron, and Takeda. Ryan introduces co-host Holly Knotowicz. [1:17] Holly introduces today’s topic, eosinophilic esophagitis (EoE), and bone density. [1:22] Holly introduces today’s guest, Dr. Anna Henderson, a pediatric gastroenterologist at Northern Light Health in Maine. [1:29] During her pediatric and pediatric gastroenterology training at Cincinnati Children’s Hospital, she took a special interest in eosinophilic esophagitis. In 2019, Dr. Henderson received APFED’s NASPGHAN Outstanding EGID Abstract Award. [1:45] Holly, a feeding therapist in Maine, has referred many patients to Dr. Henderson and is excited to have her on the show. [2:29] Dr. Henderson is a wife and mother. She loves to swim and loves the outdoors. She practices general pediatric GI in Bangor, Maine, at a community-based academic center. [2:52] Her patient population is the northern two-thirds of Maine. Dr. Henderson feels it is rewarding to bring her expertise from Cincinnati to a community that may not otherwise have access to specialized care. [3:13] Dr. Henderson’s interest in EoE grew as a GI fellow at Cincinnati Children’s. Her research focused on biomarkers for disease response to dietary therapies and EoE’s relationship to bone health. [3:36] As a fellow, Dr. Henderson rotated through different specialized clinics. She saw there were many unanswered questions about the disease process, areas to improve treatment options, and quality of life for the patients suffering from these diseases. [4:00] Dr. Henderson saw many patients going through endoscopies. She saw the social barriers for patients following strict diets. She saw a huge need in EoE and jumped on it. [4:20] Ryan grew up with EoE. He remembers the struggles of constant scopes, different treatment options, and dietary therapy. Many people struggled to find what was best for them before there was a good approved treatment. [4:38] As part of Ryan’s journey, he learned he has osteoporosis. He was diagnosed at age 18 or 19. His DEXA scan had such a low Z-score that they thought the machine was broken. He was retested. [5:12] Dr. Henderson explains that bone mineral density is a key measure of bone health and strength. Denser bones contain more minerals and are stronger. A low bone mineral density means weaker bones. Weaker bones increase the risk of fracture. [5:36] DEXA scan stands for Dual Energy X-ray Absorptiometry scan. It’s a type of X-ray that takes 10 to 30 minutes. A machine scans over their bones. Typically, we’re most interested in the lumbar spine and hip bones. [5:56] The results are standardized to the patient’s height and weight, with 0 being the average. A negative number means weaker bones than average for that patient’s height and weight. Anything positive means stronger bones for that patient’s height and weight. [6:34] A lot of things can affect a patient’s bone mineral density: genetics, dietary history, calcium and Vitamin D intake, and medications, including steroid use. Prednisone is a big risk factor for bone disease. [7:07] Other risk factors are medical and auto-immune conditions, like celiac disease, and age. Any patient will have their highest bone density in their 20s to 30s. Females typically have lower bone mineral density than males. [7:26] The last factor is lifestyle. Patients who are more active and do weight-bearing exercises will have higher bone mineral density than patients who have more of a sedentary lifestyle. [7:56] Ryan was told his bone mineral density issues were probably a side-effect of the long-term steroids he was on for his EoE. Ryan is now on benralizumab for eosinophilic asthma. He is off steroids. [8:36] Dr. Henderson says the research is needed to find causes of bone mineral density loss besides glucocorticoids. [8:45] EoE patients are on swallowed steroids, fluticasone, budesonide, etc. Other patients are on ...
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    33 mins
  • Common Nutritional Deficiencies that Affect Those with Non-EoE EGIDs

    Common Nutritional Deficiencies that Affect Those with Non-EoE EGIDs
    May 30 2025
    Description: Co-hosts Ryan Piansky, a graduate student and patient advocate living with eosinophilic esophagitis (EoE) and eosinophilic asthma, and Holly Knotowicz, a speech-language pathologist living with EoE who serves on APFED’s Health Sciences Advisory Council, interview Bethany Doerfler, MS, RDN, a clinical research dietician specializing in lifestyle management of digestive diseases at Northwestern Medicine. Ryan and Holly discuss managing nutritional deficiencies in patients with non-EoE EGIDs and a study Bethany worked on. Disclaimer: The information provided in this podcast is designed to support, not replace the relationship that exists between listeners and their healthcare providers. Opinions, information, and recommendations shared in this podcast are not a substitute for medical advice. Decisions related to medical care should be made with your healthcare provider. Opinions and views of guests and co-hosts are their own. Key Takeaways: [:50] Co-host Ryan Piansky introduces the episode, brought to you thanks to the support of Education Partners Bristol Myers Squibb, Sanofi, Regeneron, and Takeda. Ryan introduces co-host Holly Knotowicz. [1:17] Holly introduces today’s topic, common nutritional deficiencies that affect those with eosinophilic gastrointestinal diseases that occur in the GI tract lower than the esophagus (non-EoE EGIDs). [1:31] Holly introduces today’s guest, Bethany Doerfler, a clinical research dietician specializing in lifestyle management of digestive diseases, including gastroesophageal reflux disease, motility disorders, and eosinophilic diseases. [1:45] Bethany currently practices as part of a multi-disciplinary team in a digestive health institute at Northwestern Medicine. [2:03] Bethany began working with this disorder almost 20 years ago. She worked with Dr. Gonsalves and Dr. Hirano at Northwestern. Dr. Gonsalves invited her to work with EoE patients. Bethany had not heard of EoE. [2:59] Bethany says the lens that we’ve used to look at food as the trigger and also a therapeutic agent in the esophagus, we’re looking at in non-EoE EGIDs as well; at the same time, trying to make sure that we’re honoring the other parts of our patient’s lives. [3:27] Before Bethany started working in GI at Northwestern, she worked in the Wellness Institute, doing nutrition for patients at Northwestern. Bethany has a research background in epidemiology and she wanted to see better nutrition research in GI. [3:56] Through a friend, Bethany connected with the Chief of GI at that point. Northwestern had never had a dietician working in GI. [4:08] Bethany is pleased to see a trend in healthcare of thinking about the patient as a whole person, including diet, psychological wellness, physical health, exercise, sleep, and more. Bethany wanted to see more research on GI disorders. [4:38] Bethany says that eosinophils in the esophagus indicate that something is irritating the tissues, such as reflux, food triggers, aeroallergens, and other things. [4:58] Eosinophils do belong in the stomach, the small intestine, and the colon. The challenge for researchers has been, how many, where are they supposed to live, and what are they supposed to look like. [5:10] There is eosinophilic gastritis, where eosinophils can infiltrate the stomach, causing a lot of inflammatory responses that make patients sick. We see that in all parts of the small intestine and less commonly, in the colon, as well. [5:32] It’s a good reminder for listeners that eosinophils are white blood cells. When they’re in the tissues, they can swell things up and cause the body to have this inflammatory response in these lower GI tract organs. [5:49] The symptoms patients can experience are vomiting, diarrhea, and abdominal pain, among other things. [6:14] The nomenclature for this subset of eosinophil-associated diseases has changed and Bethany says to hang tight, there is lots of work underway to nail this down further in the next couple of months to a year. [6:29] The last guidelines were published by a Delphi Consensus in 2022. The experts in the field got together and voted on the scientific accuracy of certain statements to develop cut points for how to grade. [6:48] The experts are asking questions like: What counts as eosinophilic gastritis? What do we think are some of the symptoms and the clinical findings so that we all are looking at things through the same lens? [7:02] To get to these consensus statements, there’s a lot of discussion, agreement, and good collegial discussions about making sure that we’re looking at this accurately. [7:12] We’re trying to give the right names to the right disorders and give clear diagnostic criteria, so that we’re helping our patients get a diagnosis, and we’re not labeling something incorrectly and sticking someone with an inaccurate diagnosis. [7:36] The proper terminology is eosinophilic gastritis in ...
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    41 mins
  • Comparing Pediatric and Adult EoE

    Comparing Pediatric and Adult EoE
    Apr 30 2025
    Description: Co-hosts Ryan Piansky, a graduate student and patient advocate living with eosinophilic esophagitis (EoE) and eosinophilic asthma, and Holly Knotowicz, a speech-language pathologist living with EoE who serves on APFED’s Health Sciences Advisory Council, interview Dr. Melanie Ruffner, an Attending Physician with the Division of Allergy and Immunology and the Center for Pediatric Eosinophilic Disorders at Children’s Hospital of Philadelphia. Dr. Ruffner describes her work in clinic and the paper she co-authored about pediatric and adult eosinophilic esophagitis (EoE). She covers the questions they considered in the paper and the conclusions they reached. Disclaimer: The information provided in this podcast is designed to support, not replace the relationship that exists between listeners and their healthcare providers. Opinions, information, and recommendations shared in this podcast are not a substitute for medical advice. Decisions related to medical care should be made with your healthcare provider. Opinions and views of guests and co-hosts are their own. Key Takeaways: [:49] Co-host Ryan Piansky introduces the episode, brought to you thanks to the support of Education Partners Bristol Myers Squibb, GSK, Sanofi, Regeneron, and Takeda. Ryan introduces co-host Holly Knotowicz. [1:17] Holly introduces today’s topic, pediatric and adult eosinophilic esophagitis (EoE), and introduces today’s guest, Dr. Melanie Ruffner. [1:23] Dr. Melanie Ruffner is an attending physician with the Division of Allergy and Immunology in the Center for Pediatric Eosinophilic Disorders at Children’s Hospital of Philadelphia. Holly welcomes Dr. Ruffner to Real Talk. [1:50] As an attending physician in the Center for Pediatric Eosinophilic Disorders at Children’s Hospital of Philadelphia, Dr. Ruffner sees patients who have eosinophilic esophagitis and other eosinophilic disorders, including eosinophilic GI tract disorders. [2:09] Dr. Ruffner also leads a research group that studies how the immune system causes inflammation in response to certain foods, leading to EoE. [2:20] Inflammation in the esophagus is tied to other diseases like epithelial barrier dysfunction and fibrosis. [2:28] Our bodies use many different proteins that allow cells to communicate with one another. One type of signaling protein that causes inflammation is called cytokines. [2:41] Dr. Ruffner’s group is interested in how these signaling proteins called cytokines interact with epithelial cells and how that impacts the oral function of the esophagus in patients with EoE. [3:02] In training, Dr. Ruffner became interested in eosinophilic esophagitis and other non-IgE-mediated food allergies because we don’t have a lot of clear treatments or clear mechanisms that cause them. [3:21] Dr. Ruffner felt there was a lot of work to be done in that area. It was rewarding to be in clinical encounters with those patients. Often, patients had spent a long time trying to find out what was happening and to find a treatment plan that worked for them. [4:31] Dr. Ruffner’s group sees some patients who have eosinophilic gastroenteritis and patients who are referred for hypereosinophilia with impacts of inflammation in other organ systems. [5:06] Dr. Ruffner co-authored a paper about pediatric and adult EoE published in the Journal of Allergy and Clinical Immunology. It explored if EoE in pediatric patients and adult patients is a spectrum or distinct diseases. [5:29] EoE is a chronic allergic condition that affects the esophagus. The esophagus carries food from the mouth to the stomach. In people with EoE, the immune system overreacts to foods and causes inflammation in the esophagus. [5:47] Eosinophils are a type of white blood cell. Eosinophils infiltrate the tissue in the esophagus of people with EoE. Doctors look for eosinophils in the tissue of the esophagus as a sign that inflammation in the esophagus is EoE. [6:04] The symptoms of EoE can vary in children and adults. That was one of the things the doctors were interested in when they were thinking about this paper. There are no blood or allergy tests that make it easy to diagnose EoE, which requires an endoscopy. [6:31] An endoscopy is performed by a gastroenterologist. The gastroenterologists look at the appearance of the esophagus and take biopsies. [6:49] A pathologist counts the eosinophils in the tissue to determine if there are eosinophils present. If there are more than 15 eosinophils in the high-powered field of the microscope and symptoms and clinical conditions are present, EoE is diagnosed. [7:25] One of the variables Dr. Ruffner considers is that symptoms can be different in children versus adults. In older adolescents and adults, the classic symptom is difficulty swallowing or dysphagia. That is often caused by fibrosis in the esophagus. [7:54] In younger children this is often not how EoE presents. They may vomit or ...
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    39 mins
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