scholarly journals Reduction of Pulmonary Inflammation by pH Modifiers

Author(s):  
Wei-ping Zeng

Abstract Pulmonary inflammation is a common pathological feature of a variety of diseases, ofwhich successful therapy with currently available anti-inflammatory drugs is limited byresistance and adverse side effects. Using the ovalbumin-induced mouse allergic asthma model,the present study shows that treatments with pH modifiers, particularly simple acids such asacetate or hydrochloric acid, effectively depleted inflammatory cells in the lungs and blood aswell as hyperplastic lung tissue cells while preserving the structure of the blood vessels and lungparenchyma. The acid treatments also suppressed mucus hypersecretion. These resultsdemonstrated pH modifiers as a new class of broad-spectrum anti-inflammatory agents with antiproliferationand mucus suppression activities.

2021 ◽  
Author(s):  
Wei-ping Zeng

Abstract Pulmonary inflammation is a common pathological feature of a variety of diseases, of which successful therapy with currently available anti-inflammatory drugs is limited by resistance and adverse side effects. Using the ovalbumin-induced mouse allergic asthma model, the present study shows that treatments with pH modifiers, particularly simple acids such as acetate or hydrochloric acid, effectively depleted inflammatory cells in the lungs and blood as well as hyperplastic lung tissue cells while preserving the structure of the blood vessels and lung parenchyma. The acid treatments also suppressed mucus hypersecretion. These results demonstrated pH modifiers as a new class of broad-spectrum anti-inflammatory agents with anti-proliferation and mucus suppression activities.


2011 ◽  
Vol 16 (1) ◽  
pp. 25-29 ◽  
Author(s):  
Noritaka Kawada ◽  
Toshiki Moriyama ◽  
Harumi Kitamura ◽  
Ryohei Yamamoto ◽  
Yoshiyuki Furumatsu ◽  
...  

2011 ◽  
Vol 71 (24) ◽  
pp. 7617-7627 ◽  
Author(s):  
Liqun Huang ◽  
Gerardo G. Mackenzie ◽  
Yu Sun ◽  
Nengtai Ouyang ◽  
Gang Xie ◽  
...  

2010 ◽  
Vol 163 ◽  
pp. S41 ◽  
Author(s):  
Daniel Horacio López ◽  
María Laura Martín ◽  
María Antonia Noguera-Salva ◽  
Silvia Terés ◽  
Gwendolyn Barceló Coblijn ◽  
...  

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Junya Kawai ◽  
Tsugunobu Andoh ◽  
Kenji Ouchi ◽  
Satoshi Inatomi

Pleurotus eryngii(P. eryngii) is consumed as a fresh cultivated mushroom worldwide and demonstrated to have multiple beneficial effects. We investigated the anti-inflammatory effect ofP. eryngiiin mice with acute lung injury (ALI). Intranasal instillation of lipopolysaccharide (LPS) (10 μg/site/mouse) induced marked lung inflammation (increase in the number of inflammatory cells, protein leakage, and production of nitric oxide in bronchoalveolar lavage fluid) as well as histopathological damage in the lung, 6 h after treatment. Mice administered heat-treatedP. eryngii(0.3–1 g/kg, p.o. (HTPE)) 1 h before LPS challenge showed decreased pulmonary inflammation and ameliorated histopathological damage. These results suggest that HTPE has anti-inflammatory effects against ALI. Thus,P. eryngiiitself may also have anti-inflammatory effects and could be a beneficial food for the prevention of ALI induced by bacterial infection.


2004 ◽  
Vol 287 (2) ◽  
pp. C475-C483 ◽  
Author(s):  
Brenda A. Bondesen ◽  
Stephen T. Mills ◽  
Kristy M. Kegley ◽  
Grace K. Pavlath

Skeletal muscle regeneration comprises several overlapping cellular processes, including inflammation and myogenesis. Prostaglandins (PGs) may regulate muscle regeneration, because they modulate inflammation and are involved in various stages of myogenesis in vitro. PG synthesis is catalyzed by different isoforms of cyclooxygenase (COX), which are inhibited by nonsteroidal anti-inflammatory drugs. Although experiments employing nonsteroidal anti-inflammatory drugs have implicated PGs in tissue repair, how PGs regulate muscle regeneration remains unclear, and the potentially distinct roles of different COX isoforms have not been investigated. To address these questions, a localized freeze injury was induced in the tibialis anterior muscles of mice chronically treated with either a COX-1- or COX-2-selective inhibitor (SC-560 and SC-236, respectively), starting before injury. The size of regenerating myofibers was analyzed at time points up to 5 wk after injury and found to be decreased by SC-236 and in COX-2−/− muscles, but unaffected by SC-560. In contrast, SC-236 had no effect on myofiber growth when administered starting 7 days after injury. The attenuation of myofiber growth by SC-236 treatment and in COX-2−/− muscles is associated with decreases in the number of myoblasts and intramuscular inflammatory cells at early times after injury. Together, these data suggest that COX-2-dependent PG synthesis is required during early stages of muscle regeneration and thus raise caution about the use of COX-2-selective inhibitors in patients with muscle injury or disease.


2021 ◽  
Vol 4 (2) ◽  
pp. 11-16
Author(s):  
O Kalashnikov ◽  
O Sulyma ◽  
T Osadchuk ◽  
V Zayets ◽  
T Nizalov ◽  
...  

The authors of the article analyzed the experience of domestic and foreign experts in the effectiveness of the use of HA preparations in the treatment of osteoarthritis of major joints. Background  and  Objective. To analyze the literature sources in order to determine the effectiveness of the use of HA preparations in the treatment of osteoarthritis of major ligaments. Materials and methods. Articles in specialized scientific journals and collections, Internet resource.Results. The analysis of literature sources determined the important role of HA preparations in the supplying and functioning of the articular cartilage. Researchers are inclined to believe that the ideal HA preparation should be as close as possible to the physiological HA of the synovial fluid of the joint. The developed domestic drug Artro-Patch fully corresponds to these parameters. Conclusions. The use of modern injectable HA preparations is advisable at stages 1–3 of OA. Anti-inflammatory effect of HA preparations makes it possible to reduce the dose and time of administration of non-steroidal anti-inflammatory drugs and, as a consequence, reduce the risk of developing many adverse side effects of NSAIDs. The high level of safety of HA preparations, the absence of serious side effects during their long-term use determine their widespread use in the clinical practice of modern orthopedists.


2019 ◽  
Author(s):  
Federica De Leo ◽  
Giacomo Quilici ◽  
Mario Tirone ◽  
Valeria Mannella ◽  
Francesco De Marchis ◽  
...  

AbstractExtracellular HMGB1 triggers inflammation following infection or injury, and supports tumorigenesis in inflammation-related malignancies. HMGB1 has several redox states: reduced HMGB1 recruits inflammatory cells to injured tissues forming a heterocomplex with CXCL12 and signaling via its receptor CXCR4; disulfide-containing HMGB1 binds to TLR4 and promotes inflammatory responses. Here we show that Diflunisal, an aspirin-like nonsteroidal anti-inflammatory drug (NSAID) that has been in clinical use for decades, specifically inhibits in vitro and in vivo the chemotactic activity of HMGB1 at nanomolar concentrations, at least in part by binding directly to both HMGB1 and CXCL12 and disrupting their heterocomplex. Importantly, Diflunisal does not inhibit TLR4-dependent responses. Our findings clarify the mode of action of Diflunisal, and open the way to the rational design of functionally specific anti-inflammatory drugs.


2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Se-Jin Lee ◽  
A. Yeong Lee ◽  
Je-Oh Lim ◽  
Ji Hye Lee ◽  
Tae-Yang Jung ◽  
...  

Yijin-tang is an oriental traditional herb used to treat inflammatory diseases. In the present study, we investigated the protective effects of Yijin-tang water extract (YTE) using an ovalbumin- (OVA-) induced asthma model, focusing on the antioxidant and anti-inflammatory properties of the herb. BALB/c mice were intraperitoneally injected with OVA on days 0 and 14 and then challenged with OVA on days 21, 22, and 23. The animals were orally administered YTE (200 and 400 mg/kg) from days 18 to 23, and this was found to significantly decrease airway hyperresponsiveness and release of inflammatory cells, cytokines, and OVA-specific immunoglobulin E in mice with asthma. In addition, YTE was associated with a marked reduction in airway inflammation and mucus production in lung tissue of mice with asthma. Furthermore, YTE suppressed the expression of matrix metalloproteinase-9 and phosphorylation of ERK in the lungs, which in turn led to a reduction in inducible nitric oxide synthases and an elevation in reduced glutathione and heme oxygenase-1. In conclusion, YTE effectively suppressed allergic responses in mice with asthma and the effect was closely related to antioxidant and anti-inflammatory properties of the herb. Our results indicate that YTE may be a potential agent for the treatment of allergic asthma.


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