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Mast cell activation syndrome

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https://www.readbyqxmd.com/read/29757356/developing-a-diagnostic-understanding-of-gerd-phenotypes-through-the-analysis-of-levels-of-mucosal-injury-immune-activation-and-psychological-comorbidity
#1
C Zhong, K Liu, K Wang, H Liu, H Su, J Wu, L Duan
Patients with gastroesophageal reflux disease (GERD) can present with typical or atypical symptoms. The aim of this study is to explore the underlying physiological and psychological mechanisms that lead to different symptomatic manifestations of GERD. A total of 238 patients diagnosed with GERD underwent gastroscopy, 24 h multichannel intraluminal impedance-pH (MII-pH) monitoring, and psychological assessment with questionnaires. Patient symptoms were used to classify GERD into phenotypes of typical reflux syndrome (TRS, n = 87), reflux chest pain syndrome (RCS, n = 98), and extraesophageal syndromes (EES, n = 53)...
May 10, 2018: Diseases of the Esophagus: Official Journal of the International Society for Diseases of the Esophagus
https://www.readbyqxmd.com/read/29650526/flushing-disorders-associated-with-gastrointestinal-symptoms-part-2-systemic-miscellaneous-conditions
#2
REVIEW
Vaibhav Rastogi, Devina Singh, Joseph J Mazza, Dennis Yang, Dipendra Parajuli, Steven H Yale
Flushing disorders with involvement of the gastrointestinal tract represent a heterogeneous group of conditions. In part 1 discussed were neuroendocrine tumors (NET), mast cell activation disorders (MCAD), and hyperbasophilia. In this section are covered the remaining flushing disorders which primarily or secondarily involves the gastrointestinal tract. This includes dumping syndrome, mesenteric traction syndrome, rosacea, hyperthyroidism and thyroid storm, anaphylaxis, panic disorders, paroxysmal extreme pain disorder, and food, alcohol and medications...
April 12, 2018: Clinical Medicine & Research
https://www.readbyqxmd.com/read/29650525/flushing-disorders-associated-with-gastrointestinal-symptoms-part-1-neuroendocrine-tumors-mast-cell-disorders-and-hyperbasophila
#3
REVIEW
Vaibhav Rastogi, Devina Singh, Joseph J Mazza, Dennis Yang, Dipendra Parajuli, Steven H Yale
Flushing is the subjective sensation of warmth accompanied by visible cutaneous erythema occurring throughout the body with a predilection for the face, neck, pinnae, and upper trunk where the skin is thinnest and cutaneous vessels are superficially located and in greatest numbers. Flushing can be present in either a wet or dry form depending upon whether neural-mediated mechanisms are involved. Activation of the sympathetic nervous system results in wet flushing, accompanied by diaphoresis, due to concomitant stimulation of eccrine sweat glands...
April 12, 2018: Clinical Medicine & Research
https://www.readbyqxmd.com/read/29620297/-mastcell-activation-syndrome
#4
Evangelia Passia, Peter Jandus
Mast cell activation syndrome (MCAS) encompasses a heterogeneous group of pathologies, which are characterized by the existence of clinical symptoms secondary to the systemic effects of mediators released by activated mast cells. MCAS-related symptoms may be mild, moderate, severe, or even life-threatening. Detailed knowledge of the pathogenesis and complexity of MCAS can help in the management and treatment of these patients.
April 4, 2018: Revue Médicale Suisse
https://www.readbyqxmd.com/read/29577987/generalized-pruritus-relieved-by-nsaids-in-the-setting-of-mast-cell-activation-syndrome
#5
Katrina Kesterson, Zachary Nahmias, Jonathan R Brestoff, Nancy D Bodet, Andrew Kau, Brian S Kim
No abstract text is available yet for this article.
March 22, 2018: Journal of Allergy and Clinical Immunology in Practice
https://www.readbyqxmd.com/read/29523389/postural-tachycardia-syndrome-diagnosis-physiology-and-prognosis
#6
REVIEW
Amy C Arnold, Jessica Ng, Satish R Raj
Postural tachycardia syndrome (POTS) is a heterogeneous clinical syndrome that has gained increasing interest over the past few decades due to its increasing prevalence and clinical impact on health-related quality of life. POTS is clinically characterized by sustained excessive tachycardia upon standing that occurs in the absence of significant orthostatic hypotension and other medical conditions and or medications, and with chronic symptoms of orthostatic intolerance. POTS represents one of the most common presentations of syncope and presyncope secondary to autonomic dysfunction in emergency rooms and in cardiology, neurology, and primary care clinics...
February 28, 2018: Autonomic Neuroscience: Basic & Clinical
https://www.readbyqxmd.com/read/29517867/-severe-mast-cell-activation-syndrome-in-a-15-year-old-patient-with-an-hypermobile-ehlers-danlos-syndrome
#7
S Daens, D Grossin, T Hermanns-Lê, D Peeters, D Manicourt
We report the history of a 15-year old patient with a hypermobile Ehlers-Danlos syndrome (hEDS) (his mother, his two brothers and his sister have the same phenotype as him). He suffers mainly from a severe mast cell activation syndrome (MCAS) with an overreaction of the skin to any kind of contact (water of the shower, clothes, bed sheets) but he has also fatigue, headaches, and rash. This impressive rash is exacerbated after the shower and he has the urge to rest («shower's sign»). We describe the MCAS and its easy, fast and very effective medication management, without any significant side effects as well as its frequent association with the hEDS...
February 2018: Revue Médicale de Liège
https://www.readbyqxmd.com/read/29487504/potential-mechanisms-underlying-centralized-pain-and-emerging-therapeutic-interventions
#8
REVIEW
Olivia C Eller-Smith, Andrea L Nicol, Julie A Christianson
Centralized pain syndromes are associated with changes within the central nervous system that amplify peripheral input and/or generate the perception of pain in the absence of a noxious stimulus. Examples of idiopathic functional disorders that are often categorized as centralized pain syndromes include fibromyalgia, chronic pelvic pain syndromes, migraine, and temporomandibular disorder. Patients often suffer from widespread pain, associated with more than one specific syndrome, and report fatigue, mood and sleep disturbances, and poor quality of life...
2018: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/29486712/acute-coronary-syndrome-secondary-to-allergic-coronary-vasospasm-kounis-syndrome-a-case-series-follow-up-and-literature-review
#9
Jing Li, Jingang Zheng, Yifeng Zhou, Xiaofei Liu, Wenhua Peng
BACKGROUND: Kounis syndrome (KS) is the concurrence of acute coronary syndrome associated with mast-cell and platelet activation in the setting of hypersensitivity and allergic or anaphylactic insults. Many drugs and environmental exposures had been reported as inducers, but various inducers and the mechanism of KS remained unknown till now. The widely used traditional Chinese medicine (TCM) as a potential sensitizer were scarcely reported to induce allergic vasospasm due to the ignorance of the linkage between traditional medicine allergy and vasospasm...
February 27, 2018: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/29481890/a-case-of-neuropathic-pain-in-monoclonal-mast-cell-activation-syndrome
#10
Jeannie L Bay, Kaye E Sedarsky, Maureen M Petersen
No abstract text is available yet for this article.
May 2018: Annals of Allergy, Asthma & Immunology
https://www.readbyqxmd.com/read/29465304/a-mapp-network-study-overexpression-of-tumor-necrosis-factor-%C3%AE-in-mouse-urothelium-mimics-interstitial-cystitis
#11
Wenbin Yang, Timothy J Searl, Ryan E Yaggie, Anthony J Schaeffer, David J Klumpp
Interstitial cystitis/ bladder pain syndrome (IC/BPS) is a chronic bladder condition associated with pain and voiding dysfunction that is often regarded as a neurogenic cystitis. Patient symptoms are correlated with the presence of urothelial lesions. We previously characterized a murine neurogenic cystitis model that recapitulates mast cell accumulation and urothelial lesions, and these events were dependent upon TNF. To further explore the role of TNF in bladder inflammation and function, we generated a transgenic mouse model with chronic TNF overexpression in urothelium under the control of the uroplakin II (UPII) promoter...
February 21, 2018: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/29434653/shuganyin-decoction-improves-the-intestinal-barrier-function-in-a-rat-model-of-irritable-bowel-syndrome-induced-by-water-avoidance-stress
#12
Lu Lu, Liang Yan, Jianye Yuan, Qing Ye, Jiang Lin
Background: To determine the effect of Shuganyin decoction (SGD) on the intestinal barrier function in an irritable bowel syndrome (IBS) rat model induced by water-avoidance stress. Methods: Forty male Wistar rats were divided into control, water-avoidance stress (WAS) group, WAS plus Shuganyin decoction (SGD) group and WAS plus dicetel (Dicetel) group. IBS was induced in rats by subjecting them to water-avoidance stress for 7 days. On day 4 of the WAS protocol, the rats were treated for 7 consecutive days (days 4-11) with SGD, dicetel or a negative control (saline)...
2018: Chinese Medicine
https://www.readbyqxmd.com/read/29431216/mast-cell-neural-interactions-contribute-to-pain-and-itch
#13
REVIEW
Kalpna Gupta, Ilkka T Harvima
Mast cells are best recognized for their role in allergy and anaphylaxis, but increasing evidence supports their role in neurogenic inflammation leading to pain and itch. Mast cells act as a "power house" by releasing algogenic and pruritogenic mediators, which initiate a reciprocal communication with specific nociceptors on sensory nerve fibers. Consequently, nerve fibers release inflammatory and vasoactive neuropeptides, which in turn activate mast cells in a feedback mechanism, thus promoting a vicious cycle of mast cell and nociceptor activation leading to neurogenic inflammation and pain/pruritus...
March 2018: Immunological Reviews
https://www.readbyqxmd.com/read/29404272/type-i-kounis-syndrome-variant-a-case-report-and-literature-review
#14
Abdullah Haddad, Triston Smith, Aneel Bole, Moneal Shah, Mithun Chakravarthy
Kounis syndrome defined as the occurrence of acute coronary syndrome in the setting of allergic reaction due to mast cells activation and inflammatory mediators release that induces coronary vasospasm, plaque erosion, or even stent thrombosis. A 25-year-old postpartum female with asthma and recurrent episodes of chest pain was admitted with ST-segment elevation myocardial infarction in the setting of coronary artery spasms. The patient was started on calcium channel blockers and nitrite-based medication with no improvement...
January 2018: Avicenna Journal of Medicine
https://www.readbyqxmd.com/read/29404185/non-astmatic-eosinophilic-bronchitis
#15
REVIEW
Tekin Yıldız, Seyhan Dülger
Non-asthmatic eosinophilic bronchitis (NAEB) is eosinophilic inflammation of the respiratory tract, without any bronchospasm. In this article, we want to draw attention to the NAEB. It should also be considered in differential diagnosis of chronic cough. Eosinophilia is present in all induced or spontaneous sputum samples of NAEB patients. NAEB patients and asthmatic patients have similar airway inflammation. Remarkably, NAEB mainly occurs in the lower airways. Unlike asthma, mast cells in NAEB are active in the bronchial epithelium...
January 2018: Turkish Thoracic Journal
https://www.readbyqxmd.com/read/29396128/irritable-bowel-syndrome-and-endometriosis-new-insights-for-old-diseases
#16
REVIEW
Davide Viganò, Federica Zara, Paolo Usai
Irritable bowel syndrome and endometriosis are two diseases affecting a significant part of the female population, either together or individually, with remarkable consequences in the quality of life. Several studies suggest an epidemiological association between them. Their association may not be just an epidemiological phenomenon, but the manifestation of a pathophysiological correlation, which probably generates a mutual promotion phenomenon. In particular, both clinical entities share the presence of a chronic low-grade inflammatory state at the basis of the disease persistence...
March 2018: Digestive and Liver Disease
https://www.readbyqxmd.com/read/29392796/micro-inflammation-in-functional-dyspepsia-a-systematic-review-and-meta-analysis
#17
REVIEW
L Du, B Chen, J J Kim, X Chen, N Dai
Functional dyspepsia (FD) is a gastrointestinal disorder of unknown etiology. Although micro-inflammation appears to be important in the pathogenesis, studies evaluating immune activation in FD have been inconsistent. A systematic review of literature and meta-analysis was performed to compare immunologic cell counts and cytokine levels in the mucosa and peripheral blood of individuals with FD and healthy controls. PubMed, Embase, and the Cochrane library were searched. Data on immunologic cell counts and cytokines levels among individuals with FD and control groups were extracted and compared by calculating standard mean differences (SMD)...
April 2018: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/29378725/variability-of-pd-l1-expression-in-mastocytosis
#18
Ellen W Hatch, Mary Beth Geeze, Cheyenne Martin, Mohamed E Salama, Karin Hartmann, Gregor Eisenwort, Katharina Blatt, Peter Valent, Jason Gotlib, Ji-Hyun Lee, Lu Chen, Heather H Ward, Diane S Lidke, Tracy I George
Mastocytosis is a rare disease with heterogeneous clinical manifestations and few effective therapies. Programmed death-1 (PD-1) and its ligands (PD-L1 and PD-L2) protect tissues from immune-mediated damage and permit tumors to evade immune destruction. Therapeutic antibodies against PD-1 and PD-L1 are effective in the treatment of a variety of neoplasms. In the present study, we sought to systematically analyze expression of PD-1 and PD-L1 in a large number of patients with mastocytosis using immunohistochemistry and multiplex fluorescence staining...
February 13, 2018: Blood Advances
https://www.readbyqxmd.com/read/29358881/increased-intestinal-mucosal-leptin-levels-in-patients-with-diarrhea-predominant-irritable-bowel-syndrome
#19
De-Rong Liu, Xiao-Juan Xu, Shu-Kun Yao
AIM: To measure the leptin levels in patients with diarrhea-predominant irritable bowel syndrome (IBS-D) and analyze the relationship of leptin with clinical features, visceral sensitivity, mast cells, and nerve fibers. METHODS: Forty-two patients with IBS-D fulfilling the Rome III criteria and 20 age- and sex-matched healthy controls underwent clinical and psychological evaluations using validated questionnaires (including IBS Symptom Severity Scale, IBS-specific Quality of Life, Hamilton Anxiety Scale, and Hamilton Depression Scale), along with colonoscopy, colonic mucosal biopsy, and visceral sensitivity testing...
January 7, 2018: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/29351663/mini-review-can-non-human-leucocyte-antigen-genes-determine-susceptibility-to-severe-dengue-syndromes
#20
Dorothy Ng, Aparna Ghosh, Mark Jit, Suranjith L Seneviratne
Dengue viral infections are endemic or epidemic in virtually all tropical countries. Among individuals infected with the dengue virus, severe dengue syndromes (i.e., dengue haemorrhagic fever and dengue shock syndromes) tend to affect only some and this may be due to a combination of host genetic susceptibility and viral factors. In this review article we analyse and discuss the present knowledge of non-human leucocyte antigen host genetic susceptibility to severe dengue syndromes. The relevance of genetic polymorphisms in the pathways of antigen recognition, uptake, processing and presentation, activation of interferon α responses, mast cell and complement activation and T cell activation and dengue disease severity has been reviewed and analysed...
September 1, 2017: Transactions of the Royal Society of Tropical Medicine and Hygiene
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