Chronic allergic airways disease (AAD) is a group of the disease characterized by airway inflammation and airway hyperresponsiveness (AHR).
And, “. Omalizumab binds to the Ce3 domain of free IgE with high affinity (7), thereby inhibiting early- and late-phase asthmatic reactions (8) and decreasing the frequency of exacerbations in severe asthmatics (9). Omalizumab binding also prevents IgE from interacting with Fc«RI and Fc«RII1 on effector cells (mast cells, B cells, eosinophils, dendritic cells, and monocytes), thus impairing their activation and making them less sensitive to allergens, and disabling signaling cascades (10), with the end result of a reduction in symptoms”.
With an aim to discover a potential compound for the treatment of diseases associated with chronic inflammation, researchers examined the ability of bromelain in reducing the inflammation of preexisting asthma via ovalbumin (OVA)-induced murine model of allergic airway disease (AAD).
The study included female C57BL/6J mice with intraperitoneal OVA/alum and then challenged them with OVA aerosolization for 10 consecutive days.
On day 4, phosphate buffered saline (PBS) was administrated to the control group (n = 10) and bromelain (6mg/kg) in PBS were administrated to the bromelain (intervention) group (n = 10).
According to the tested assays, bromelain treatment of AAD mice (bromelain group) showed a significant anti-inflammatory activity indicated by reduced BAL total leukocytes, eosinophils, and cellular infiltrates via lung pathology compared to the control group.
Furthermore, bromelain also significantly reduced bronchoalveolar lavage (BAL) CD4+ associated and CD8+ T cells d with the T helper 2 (TH2) cells in the promotion of allergic inflammation process without affecting cell numbers in the spleen or hilar lymph node.
The efficacy bromelain in the inhibition was attributed to the decreased interleukins involved in the production of pro-inflammatory cytokines.
In other words, bromelain protects asthma patient against allergic airway inflammation through its strong anti-inflammatory property.
In order to find more information about bromelain anti-ADD activity, researchers investigated the effect of bromelain treatment in an ovalbumin (OVA)-induced murine model of allergic airway disease (AAD).
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Kyle J. Norton (Scholar, Master of Nutrition, All right reserved)
Health article writer and researcher; Over 10.000 articles and research papers have been written and published online, including worldwide health, ezine articles, article base, health blogs, self-growth, best before it’s news, the karate GB daily, etc.,.
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Some articles have been used as references in medical research, such as international journal Pharma and Bioscience, ISSN 0975-6299.
(1) Bromelain limits airway inflammation in an ovalbumin-induced murine model of established asthma by Secor ER Jr1, Shah SJ, Guernsey LA, Schramm CM, Thrall RS. (PubMed)
(2) Bromelain exerts anti-inflammatory effects in an ovalbumin-induced murine model of allergic airway disease by Secor ER Jr1, Carson WF 4th, Cloutier MM, Guernsey LA, Schramm CM, Wu CA, Thrall RS. (PubMed)
(3) Allergic Airway Disease: More than Meets the IgE? by Jill R. Johnson, Ph.D. and James A. Harker, Ph.D