Treadmill exercise restores memory and hippocampal synaptic plasticity impairments in ovalbumin-sensitized juvenile rats: Involvement of brain-derived neurotrophic factor (BDNF)

Publication date: Available online 23 January 2020Source: Neurochemistry InternationalAuthor(s): Amin Mokhtari-Zaer, Saeideh Saadat, Narges Marefati, Mahmoud Hosseini, Mohammad Hossein BoskabadyAbstractStudies demonstrate that asthma, especially during childhood, affects the functions of the brain including learning and memory. Exercise is well known for its neuroprotective functions and for its beneficial effects on asthma. We aimed to assess the effects of exercise on cognitive function, synaptic plasticity, and hippocampal brain-derived neurotrophic factor (BDNF) levels in ovalbumin (OVA) sensitized juvenile rats. Rats were sensitized by intraperitoneal administration and inhaled OVA. Animals were subjected to treadmill running exercise during the OVA-challenged period. T-helper type 2 (Th2) cytokine [interleukin (IL)-4], Th1 cytokine (INF-γ) levels, and INF-γ/IL-4 (Th1/Th2) ratio in bronchoalveolar lavage fluid (BALF), and tracheal response to methacholine and OVA were measured. Further, memory behaviors and BDNF levels were measured in the hippocampus as well as long-term potentiation (LTP) was assessed by recording field excitatory postsynaptic potentials (fEPSPs) in the hippocampus. The levels of IL-4 and TGF-β were decreased but INF-γ level and INF-γ/IL-4 ratio increased in the BALF due to exercise in the OVA-sensitized animals. In addition, exercise improved OVA-sensitization induced cognitive impairments, increased BDNF levels, and enhan...
Source: Neurochemistry International - Category: Neuroscience Source Type: research

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Condition:   Persistent Asthma Interventions:   Combination Product: fluticasone/formoterol k-haler (medium strength);   Combination Product: Standard of care (ICs/LABA high strength) Sponsors:   Mundipharma Pharmaceuticals S.L.;   Alpha Bioresearch S.L.;   Dynamic Solutions Not yet recruiting
Source: - Category: Research Source Type: clinical trials
Condition:   Severe Asthma Intervention:   Other: No intervention Sponsor:   AstraZeneca Recruiting
Source: - Category: Research Source Type: clinical trials
Household cleaning products could be linked to childhood asthma, research published today suggests. More than five million people in Britain have asthma, including 1.1million children.
Source: the Mail online | Health - Category: Consumer Health News Source Type: news
Source: Journal of Asthma and Allergy - Category: Allergy & Immunology Tags: Journal of Asthma and Allergy Source Type: research
ConclusionsAmong uninsured and underinsured asthma patients with GAD and/or MDD who were initiated on a single antidepressant, those who were titrated to achieve target doses had reduced risk of severe asthma exacerbations and lower number of asthma ÔÇÉrelated outcomes than those who were not optimized to achieve target doses.
Source: Pharmacotherapy: The Journal of Human Pharmacology and Drug Therapy - Category: Drugs & Pharmacology Authors: Tags: ORIGINAL RESEARCH ARTICLE Source Type: research
Publication date: Available online 14 February 2020Source: The Journal of Allergy and Clinical Immunology: In PracticeAuthor(s): J.H. Hull, Krystelle Godbout, Louis-Philippe BouletAbstractBreathlessness during sport can be caused by a variety of cardiorespiratory conditions, but when associated with stridor, usually arises from an upper airway etiology. The term exercise-induced laryngeal obstruction (EILO) is now used to describe the phenomonen of transient glottic closure occurring in association with physical activity.Exercise related laryngeal closure is most commonly encountered in athletic individuals and likely affe...
Source: The Journal of Allergy and Clinical Immunology: In Practice - Category: Allergy & Immunology Source Type: research
ConclusionsOur results identify specialty specific concerns and can be used to inform the development of tailored interventions to improve wellness and minimize burnout. However, future surveys with a larger sample size are needed to obtain a more robust data set on allergy and immunology specific wellness challenges.
Source: The Journal of Allergy and Clinical Immunology: In Practice - Category: Allergy & Immunology Source Type: research
Authors: Doyen V, Casset A, Divaret-Chauveau A, Khayath N, Peiffer G, Bonniaud P, Dalphin JC, De Blay F Abstract Allergy is a hypersensitivity reaction induced by immunological mechanisms. In asthma, allergy has a complex role and is usually IgE mediated. Allergy must be evaluated during the work up but evidence of IgE sensitivity does not mean that allergens play a role in the pathophysiology of the disease. The clinical relevance of the sensitivity has to be considered. This paper describes current available tools to screen for IgE sensitivity, allergen exposure and their role in asthma. PMID: 32057505 [PubMe...
Source: Revue des Maladies Respiratoires - Category: Respiratory Medicine Tags: Rev Mal Respir Source Type: research
Authors: Raherison C, Hamzaoui A, Nocent-Ejnaini C, Essari LA, Ouksel H, Zysman M, Prudhomme A, groupe de travail Femmes et poumons de la SPLF Abstract In a woman's life, asthma can affect her in a variety of ways, with the onset of premenstrual asthma currently under-diagnosed. It is estimated that about 20% of women with asthma have premenstrual asthma, which is more common in patients with severe asthma. Women with asthma are at high risk of exacerbations and of severe asthma. Asthma is the most common chronic disease during pregnancy with potential maternal and foetal complications. Asthma medications are safe ...
Source: Revue des Maladies Respiratoires - Category: Respiratory Medicine Tags: Rev Mal Respir Source Type: research
Publication date: 15 February 2020Source: New Scientist, Volume 245, Issue 3269Author(s): Jessica Hamzelou
Source: New Scientist - Category: Science Source Type: research
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