جستجوی مقالات مرتبط با کلیدواژه "mustard lung" در نشریات گروه "پزشکی"

Sulfur mustard (Mustard gas) is the most famed chemical warfare agent that caused chronic lung damage. Oxidative stress is known as a major cause of mustard lung pathogenesis. This study aimed to introduce antioxidant tablets of Iranian N-acetyl-cysteine (NAC) as an effective treatment for chronic lung damage caused by mustard gas.

This study was performed as a double-blind randomized clinical trial. In the current study, 85 patients with chronic sulfur mustard lung injury from chemical warfare veterans of Qazvin province for 4 months from 2016 to 2017, randomly took one of the Iranian NAC (Oslyt®) or foreign NAC (Fluimucil®) tablets a dose of 1200 mg per day. The symptoms via breathlessness-cough and sputum scale (BCSS), modified medical research council (MMRC), COPD assessment test (CAT), rhinitis control assessment test (RCAT), and reflux symptom index (RSI) questionnaires and spirometric indices and side effects drugs were compared in groups.

According to the results and comparing the P-value obtained for clinical symptoms obtained through the mentioned questionnaires, it seems that in both groups of Oslyt (with 41 patients) and Fluimucil (with 44 patients), remarkably improved BCSS, MMRC, CAT, and RSI (except for RCAT) overall scores. There was no significant difference between Oslyt and Fluimucil in terms of the frequency of side effects.

Both Iranian and foreign antioxidant drugs NAC improve the majority of clinical signs of the mustard lung. This is the first time that anti-reflux effects have been observed for antioxidants such as NAC. The Oslyt dose of 1200 mg per day is adequate for effectiveness and antioxidant effects.

Both Chronic Obstructive Pulmonary Disease (COPD) and mustard lung victims of chemical injury (unlike asthma and allergy) are known respiratory diseases with a substantial genetic background and there are no highly effective medications for either disease. Considering the many similarities between the two diseases, both can be considered simultaneously under one category. Therefore, we assessed the expression of miR-20a and miR-92a as representatives of the miR-17/92 cluster due to the effective interference of these two miRNAs in the signaling pathways of inflammation and hypoxia in the pulmonary serum (consisting of Mustard Lung and COPD, simultaneously).
Stem-Loop Real-Time Quantitative Polymerase Chain Reaction was used to examine the expression of miR-20a and miR-92a simultaneously in patients with COPD (n=25) and mustard lung (n=50).
The results showed that the expression of both miR-20a and miR-92a was significantly downregulated in patients with COPD and chemical injuries when compared to the control group. The expression of each of two miRNAs in the moderate and severe phases of the disease was more downregulated in the mild stage, and miR-92a showed a further downregulation compared to miR-20a (p The downregulation of miR-20a and miR-92a might be due to alterations in 1- genomic and/or 2- environmental and/or 3- ecogenomic (affected by epigenomic) factors which requires intensive research in this field. Our results may shed light on new effective strategies for the treatment of respiratory diseases by regulating the mir17/92 cluster by regulating related factors. The members of the oncogenic miR17/92 cluster are significantly upregulated in lung cancer and have the potential to be used as biomarkers in the non-invasive screening of respiratory diseases. Furthermore, these miRNAs can be used for distinguishing respiratory diseases from lung cancer and cardiovascular diseases (also known as COPD comorbities).