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Asthma therapy

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https://www.readbyqxmd.com/read/29677491/the-allergen-der-p3-from-house-dust-mite-stimulates-store-operated-ca-2-channels-and-mast-cell-migration-through-par4-receptors
#1
Yu-Ping Lin, Charmaine Nelson, Holger Kramer, Anant B Parekh
The house dust mite is the principal source of perennial aeroallergens in man. How these allergens activate innate and adaptive immunity is unclear, and therefore, there are no therapies targeting mite allergens. Here, we show that house dust mite extract activates store-operated Ca2+ channels, a common signaling module in numerous cell types in the lung. Activation of channel pore-forming Orai1 subunits by mite extract requires gating by STIM1 proteins. Although mite extract stimulates both protease-activated receptor type 2 (PAR2) and PAR4 receptors, Ca2+ influx is more tightly coupled to the PAR4 pathway...
April 19, 2018: Molecular Cell
https://www.readbyqxmd.com/read/29676818/new-insights-into-the-phenotypes-of-atopic-dermatitis-linked-with-allergies-and-asthma-in-children-an-overview
#2
F Amat, A Soria, P Tallon, M Bourgoin-Heck, N Lambert, A Deschildre, J Just
Atopic dermatitis (AD) is a complex disease with multiple causes and complex mechanistic pathways according to age of onset, severity of the illness, ethnic modifiers, response to therapy, and triggers. A group of difficult-to-manage patients characterized by early-onset AD and severe lifelong disease associated with allergic asthma and/or food allergy, has been identified. In this paper, we focus on these severe phenotypes, analyzing their links with other atopic comorbidities, and taking into account the results from recent cohort studies and meta-analyses...
April 20, 2018: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29676620/interleukin-13-stimulation-reveals-the-cellular-and-functional-plasticity-of-the-airway-epithelium
#3
Max A Seibold
About 50% of patients with asthma exhibit chronic airway inflammation driven by the type 2 cytokines interleukin (IL)-4, IL-5, and IL-13. These patients with type 2-high asthma experience more allergic symptoms, greater airway hyperresponsiveness, and more severe mucus obstruction than patients with type 2-low asthma. Mouse models of asthma have shown that much of the airway dysfunction in these models can be generated by IL-13 stimulation of the airway epithelium alone. Both in vivo mouse model studies and in vitro studies of human mucociliary airway epithelial cultures have shown that IL-13 induces cellular remodeling of the airway epithelium through proliferation-independent transdifferentiation processes...
April 2018: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/29676072/current-management-of-moderate-to-severe-atopic-dermatitis-a-survey-of-allergists-pediatric-allergists-and-dermatologists-in-korea
#4
Hye Yung Yum, Hyun Hee Kim, Hyun Jung Kim, Woo Kyung Kim, So Yeon Lee, Kapsok Li, Dong Hun Lee
PURPOSE: There is an unmet need for the treatment of moderate-to-severe atopic dermatitis (AD), leading to variation in management strategies. To investigate distinct features and treatment modalities according to physicians' specialties, we collected data on the current treatment approach to moderate-to-severe AD among allergists, pediatric allergists and dermatologists in Korea. METHODS: This questionnaire-based study was administered to physicians from the Korean Academy of Asthma, Allergy and Clinical Immunology (KAAACI), Korean Academy of Pediatric Allergy and Respiratory Disease (KAPARD), and Korean Atopic Dermatitis Association (KADA)...
May 2018: Allergy, Asthma & Immunology Research
https://www.readbyqxmd.com/read/29673814/assessment-of-hair-cortisol-as-a-potential-biomarker-for-possible-adrenal-suppression-due-to-inhaled-corticosteroid-use-in-children-with-asthma-a-retrospective-observational-study
#5
Laura Smy, Kaitlyn Shaw, Ursula Amstutz, Michelle Staub, Shahnaz Chaudhry, Anne Smith, Bruce Carleton, Gideon Koren
BACKGROUND: Inhaled corticosteroids (ICS) are the recommended long-term control therapy for asthma in children. However, concern exists regarding potential adrenal suppression with chronic ICS use. Our pilot study reported that hair cortisol in children was 50% lower during ICS therapy than prior to therapy, suggestive of adrenal suppression. OBJECTIVE: To evaluate hair cortisol concentration (HCC) as a potential biomarker for possible adrenal suppression from ICS use in children with asthma...
April 16, 2018: Clinical Biochemistry
https://www.readbyqxmd.com/read/29672188/effect-of-inhaled-corticosteroid-use-on-weight-bmi-in-pediatric-patients-with-moderate-severe-asthma
#6
Jennifer Han, John Nguyen, Yuna Kim, Bob Geng, Gale Romanowski, Lawrence Alejandro, James Proudfoot, Ronghui Xu, Sydney Leibel
OBJECTIVES: Assess the relationship between inhaled corticosteroid use (ICS) and weight (BMI) in pediatric patients with moderate-severe asthma. Assess if the number of emergency department (ED) visits correlates with overall BMI trajectory. Assess the trend of prescribing biologic therapy in pediatric patients with moderate-severe asthma and determine its relationship with weight (BMI). METHODS: A retrospective chart review was performed on 93 pediatric patients with moderate-severe asthma to determine the relationship between ICS use and weight (BMI), biologic therapy and BMI, and number of ED visits and BMI trajectory...
April 19, 2018: Journal of Asthma: Official Journal of the Association for the Care of Asthma
https://www.readbyqxmd.com/read/29671652/effects-of-educated-monocytes-with-xenogeneic-mesenchymal-stem-cell-derived-conditioned-medium-in-a-mouse-model-of-chronic-asthma
#7
Hadi Esmaili Gourvarchin Galeh, Seyyed Meysam Abtahi Froushani, Nahideh Afzale Ahangaran, Siamak Naji Hadai
BACKGROUND: This study was conducted to determine the potential of the monocytes educated with rat bone marrow mesenchymal stem cell-derived conditioned medium (MCM) in ameliorating animal model of asthma. METHODS: Chronic asthma was induced in the BALB/c mice using ovalbumin (OVA) sensitization. The monocytes were isolated from blood of mice and supplemented with 50% MCM or negative control media. After 24 h, the cells were designated as "non-educated or educated"...
April 19, 2018: Immunological Investigations
https://www.readbyqxmd.com/read/29670674/tiotropium-for-the-treatment-of-asthma-patient-selection-and-perspectives
#8
REVIEW
V Madhu Chari, Robert Andrew McIvor
Asthma is a chronic disease of airway inflammation with a large global burden. Despite established, guideline-based stepwise therapy, a significant proportion of patients remain symptomatic and poorly controlled. As such, there is a need for additional safe, effective, convenient, and cost-effective therapies that can be broadly applied across a range of asthma phenotypes. Tiotropium is a long-acting muscarinic antagonist (LAMA) that leads to bronchodilation by blocking endogenous acetylcholine receptors in the airways...
2018: Canadian Respiratory Journal: Journal of the Canadian Thoracic Society
https://www.readbyqxmd.com/read/29669351/bronchial-thermoplasty-in-severe-asthma-best-practice-recommendations-from-an-expert-panel
#9
Peter I Bonta, Pascal Chanez, Jouke T Annema, Pallav L Shah, Robert Niven
Bronchial thermoplasty (BT) is a bronchoscopic treatment for patients with severe asthma who remain symptomatic despite optimal medical therapy. In this "expert best practice" paper, the background and practical aspects of BT are highlighted. Randomized, controlled clinical trials have shown BT to be safe and effective in reducing severe exacerbations, improving quality of life, and decreasing emergency department visits. Five-year follow-up studies have provided evidence of the functional stability of BT-treated patients with persistence of a clinical benefit...
April 17, 2018: Respiration; International Review of Thoracic Diseases
https://www.readbyqxmd.com/read/29668337/reduced-longitudinal-cardiac-strain-in-asthma-patients
#10
I Tuleta, N Eckstein, F Aurich, G Nickenig, C Schaefer, D Skowasch, R Schueler
OBJECTIVE: There is limited knowledge about the potential relationship between asthma and heart function. Aim of our present study was to examine if asthma may be associated with manifest or subclinical heart dysfunction. METHODS: 72 allergic mild-to-moderate and severe asthma patients and 20 matched controls were enrolled in the study. Depending on the anti-asthmatic therapy, four subgroups of asthma patients were created: patients under long-acting beta2-agonists (LABA) and inhaled cortisone without oral cortisone treatment with (1a) versus without (1b) additional omalizumab therapy; patients with LABA, inhaled cortisone and omalizumab treatment with (2a) versus without (2b) oral cortisone...
April 18, 2018: Journal of Asthma: Official Journal of the Association for the Care of Asthma
https://www.readbyqxmd.com/read/29668295/unravelling-a-clinical-paradox-why-does-bronchial-thermoplasty-work-in-asthma
#11
Graham M Donovan, John G Elliot, Francis H Y Green, Alan L James, Peter B Noble
Rationale Bronchial thermoplasty is a relatively new but effective treatment in asthmatic subjects who do not respond to conventional therapy. While the favoured mechanism is ablation of the airway smooth muscle layer, because bronchial thermoplasty treats only a small number of central airways, there is ongoing debate regarding its precise method of action. Objectives Elucidate the underlying method of action behind bronchial thermoplasty. Methods We employ a combination of extensive human lung specimens and novel computational methods...
April 18, 2018: American Journal of Respiratory Cell and Molecular Biology
https://www.readbyqxmd.com/read/29665659/suppressive-effect-of-4-hydroxy-2-4-hydroxyphenethyl-isoindoline-1-3-dione-on-ovalbumin-induced-allergic-asthma
#12
Jin Huang, Mingzhi Su, Bo-Kyung Lee, Mee-Jeong Kim, Jee H Jung, Dong-Soon Im
4-Hydroxy-2-(4-hydroxyphenethyl)isoindoline-1,3-dione (PD1) is a synthetic phthalimide derivative of a marine compound. PD1 has peroxisome proliferator-activated receptor (PPAR) γ agonistic and anti-inflammatory effects. This study aimed to investigate the effect of PD1 on allergic asthma using rat basophilic leukemia (RBL)-2H3 mast cells and an ovalbumin (OVA)-induced asthma mouse model. In vitro , PD1 suppressed β-hexosaminidase activity in RBL-2H3 cells. In the OVA-induced allergic asthma mouse model, increased inflammatory cells and elevated Th2 and Th1 cytokine levels were observed in bronchoalveolar lavage fluid (BALF) and lung tissue...
April 18, 2018: Biomolecules & Therapeutics
https://www.readbyqxmd.com/read/29665127/proteomic-analysis-of-serum-and-sputum-analytes-distinguishes-controlled-and-poorly-controlled-asthmatics
#13
Marion T Kasaian, Julie Lee, Agnes Brennan, Spencer I Danto, Kendall E Black, Lori Fitz, Anne E Dixon
BACKGROUND: A major goal of asthma therapy is to achieve disease control, with maintenance of lung function, reduced need for rescue medication, and prevention of exacerbation. Despite current standard of care, up to 70% of patients with asthma remain poorly controlled. Analysis of serum and sputum biomarkers could offer insights into parameters associated with poor asthma control. OBJECTIVE: To identify signatures as determinants of asthma disease control, we performed proteomics using Olink proximity extension analysis...
April 17, 2018: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29662320/omalizumab-for-severe-asthma-toward-personalized-treatment-based-on-biomarker-profile-and-clinical-history
#14
REVIEW
Farnaz Tabatabaian, Dennis K Ledford
Asthma is a heterogeneous syndrome with numerous underlining molecular and inflammatory mechanisms contributing to the wide spectrum of clinical phenotypes. Multiple therapies targeting severe asthma with type 2 (T2) high inflammation are or soon will be available. T2 high inflammation is defined as inflammation associated with atopy or eosinophilia or an increase in cytokines associated with T-helper 2 lymphocytes. Omalizumab is a humanized anti-IgE monoclonal antibody and the first biologic therapy approved for moderate-severe allergic asthma...
2018: Journal of Asthma and Allergy
https://www.readbyqxmd.com/read/29659630/body-mass-index-of-92-027-patients-acutely-admitted-to-general-hospitals-in-denmark-associated-clinical-characteristics-and-30-day-mortality
#15
Sigrid Bjerge Gribsholt, Lars Pedersen, Bjørn Richelsen, Olaf Dekkers, Reimar Wernich Thomsen
BACKGROUND: Data are sparse on the range of BMI among patients acutely admitted to general hospitals. We investigated BMI values and associated patient characteristics, reasons for hospital admission, and mortality in Denmark. METHODS: We identified all persons with an acute inpatient admission 2011-2014 in Central Denmark Region and assessed BMI measurements recorded in the Clinical Information System. We used cross-sectional and cohort analyses to examine the BMI distribution and its association with demographic characteristics, comorbidities, medication use, tobacco smoking, reasons for admission, and 30-day mortality...
2018: PloS One
https://www.readbyqxmd.com/read/29658513/b-2-adrenergic-receptor-gene-polymorphism-effect-on-childhood-asthma-severity-and-response-to-treatment
#16
Ashgan Abdallah Alghobashy, Sahar A Elsharawy, Usama M Alkholy, Nermin Abdalmonem, Mohamed Ali Abdou, Maha A A Basset, Heba Fouad Pasha
BackgroundAlterations of B2 adrenergic receptor (β2 AR) can modulate the severity of asthma and the response to treatment. Therefore, we aimed to evaluate β2 AR gene polymorphism at codons 16 and 27 and their effect on asthma severity and response to treatment in asthmatic children.MethodsCase-control study was conducted on 156 children; 104 of them had bronchial asthma and 52 were healthy children (control group). Subjects of the study underwent history taking, clinical examination, pulmonary function tests, serum IgE level assessment, and identification of β2 AR-16 A46G and β2 AR-27 C79G polymorphism using PCR-Restriction Fragment length polymorphisms (RFLP) test...
March 2018: Pediatric Research
https://www.readbyqxmd.com/read/29653238/the-pediatric-asthma-yardstick-practical-recommendations-for-a-sustained-step-up-in-asthma-therapy-for-children-with-inadequately-controlled-asthma
#17
Bradley E Chipps, Leonard B Bacharier, Judith R Farrar, Daniel J Jackson, Kevin R Murphy, Wanda Phipatanakul, Stanley J Szefler, W Gerald Teague, Robert S Zeiger
Current asthma guidelines recommend a control-based approach to management involving assessment of impairment and risk followed by implementation of treatment strategies individualized according to the patient's needs and preferences. However, for children with asthma, achieving control can be elusive. While tools are available to help children (and families) track and manage day-to-day symptoms, when and how to implement a longer-term step-up in care is less clear. Furthermore, treatment is challenged by the three age groups of childhood - adolescence (12-18 years old), school age (6-11 years old), and young children (≤ 5 years old), and what works for one age group may not be the best approach for another...
April 10, 2018: Annals of Allergy, Asthma & Immunology
https://www.readbyqxmd.com/read/29651227/a-case-of-atopic-dermatitis-caused-by-ascaris-lumbricoides-infection
#18
Rosanna Qualizza, Laura M Losappio, Fabiana Furci
Background: Parasite infections stimulate total and specific IgE production that, in the case of Toxocara canis infection, corresponds to chronic allergic symptoms. There may also be other infections which have similar symptoms, such as Ascaris lumbricoides infection. Ascaris lumbricoides is a large nematode that causes abdominal pain, nausea, vomiting, bloating, anorexia and intermittent diarrhoea. Patients with ascaridiasis and high IgE levels may also have allergy-like symptoms such as asthma, urticaria and atopic dermatitis...
2018: Clinical and Molecular Allergy: CMA
https://www.readbyqxmd.com/read/29650833/-a-case-of-local-recurrence-of-descending-colon-cancer-with-ileus-obstruction-and-lung-liver-and-brain-metastasis
#19
Ryouichi Tomita, Shigeru Fujisaki, Kenichi Sakurai, Takeo Azuhata, Yuko Takamoto
We report a 50-year-old man with local recurrence of descending colon cancer with ileus obstruction and brain metastasis, 2 years 6 months after initial resection due to perforation of descending colon cancer(Hartmann procedure, D2 lymph node resection, Stage II, tub2). He complained of left upper abdominal pain and abdominal fullness. He also complained of paresis of the right upper extremity and of experiencing convulsions 1 month before admission. He was diagnosed with local recurrence of descending colon cancer, based on findings of contrast radiography and the presence of colonic fiber...
April 2018: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/29650028/a-rare-presentation-of-pulmonary-sarcoidosis-as-a-solitary-lung-mass-a-case-report
#20
Dylan W Kelleher, Madeleine Yaggi, Robert Homer, Erica L Herzog, Changwan Ryu
BACKGROUND: Sarcoidosis is a multisystem, chronic granulomatous disease of unknown etiology that predominantly affects the lungs. Pulmonary sarcoidosis classically presents with constitutional symptoms and computed tomographic scan findings of bilateral, symmetric micronodules in a peribronchovascular distribution with upper and middle lung zone predominance accompanied by bilateral, symmetric hilar lymphadenopathy. A solitary lung mass is a rare finding for pulmonary sarcoidosis, and with its associated constitutional symptoms, it strongly mimics a malignancy...
April 13, 2018: Journal of Medical Case Reports
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