2.Silica induced early fibrogenic reaction in lung of mice ameliorated by Nyctanthes arbortristis extract.
Bhola Nath PAUL ; Anand PRAKASH ; Sirish KUMAR ; Ajay K YADAV ; U MANI ; Ashok K SAXENA ; Anand Prakash SAHU ; Kewal LAL ; Kalyan K DUTTA
Biomedical and Environmental Sciences 2002;15(3):215-222
OBJECTIVETo investigate the pharmacological effect of Nyctanthes arbortristis (NAT) leaf extract in the prevention of lung injury induced by silica particles.
METHODLung injury was induced in Swiss mice through inhalation exposure to silica particles (< 5 mu) using a Flow Past Nose Only Inhalation Chamber at the rate of -10 mg/m3 respirable mass for 5 h. Lung bronchoalveolar lavage (BAL) fluid collected between 48 and 72 h was subjected to protein profiling by electrophoresis and cytokine evaluation by solid phase sandwich ELISA. Lung histopathology was performed to evaluate lung injury.
RESULTSInhalation of silica increased the level of tumor necrosis factor-alpha (TNF-alpha), and of the 66 and 63 kDa peptides in the BAL fluid in comparison to sham-treated control. Pre-treatment of silica exposed mice with NAT leaf extract significantly prevented the accumulation of TNF-alpha in the BAL fluid, but the 66 and 63 kDa peptides remained unchanged. The extract was also effective in the prevention of silica-induced early fibrogenic reactions like congestion, edema and infiltration of nucleated cells in the interstitial alveolar spaces, and thickening of alveolar septa in mouse lung.
CONCLUSIONNAT leaf extract helps in bypassing silica induced initial lung injury in mice.
Administration, Oral ; Animals ; Bronchoalveolar Lavage Fluid ; Disease Models, Animal ; Enzyme-Linked Immunosorbent Assay ; Inhalation Exposure ; Male ; Mice ; Oleaceae ; chemistry ; Phytotherapy ; Plant Extracts ; pharmacology ; Pulmonary Fibrosis ; etiology ; prevention & control ; veterinary ; Silicon Dioxide ; adverse effects ; Silicosis ; prevention & control ; veterinary
3.Study results of the prevalence for thyroid disorders
Tsegmed S ; Norolkhoosuren B ; Otgonbayar S ; Tsientcogzol D ; Lkhagvajav B ; Buanzaya B ; Enkhtuya N ; Anand U ; Bolormaa N ; Narantuya D ; Unursaikhan S
Mongolian Medical Sciences 2022;199(1):15-23
Introduction:
Among the endocrine, nutritional, and metabolic disease and thyroid disorders occupy a significant place. According to the World Health Organization, 8-18% of the world’s population suffer from thyroid disorders. In our country, no research on the prevalence of the disorders has been conducted before, and this research methodology was discussed by the Scientific committee of the National Center for Public Health and was approved by resolution No.156 of the Ethics Committee of the Ministry of Health on 2020.
Materials and Methods:
In order to determine the prevalence
of thyroid disease in the country, we collected the actual number of thyroid disorders registered in 9 districts of the capital city and 330 soums of 21 aimags for a total of 10 years from 2011 to 2020. The prevalence of thyroid disorders was mapped using Arc view and GIS software.
Results
Endocrine, nutritional and metabolic disease account for 2.3% of all outpatient cases. Endocrine, nutritional, and metabolic disease accounted for an average of 168.3 per 10000 population over the past 10 years, and thyroid disorders accounted for 45 or 26.7% of endocrine, nutritional, and metabolic diseases. Thyroid disorders are highest in people aged 40-49 years.
Thyroid toxicity is the most common type of thyroid disease in Mongolia, accounting for 56.2%, with an average of 17.2 per 10000 population in 2011-2020. However, iodine deficiency-related thyroid disease accounts for 5.5% of all thyroid disorders, with an average of 2.5 per 10000 population in 2011-2020. In 2011, it decreased by 2.2 per 10000 population, and by 2020, it decreased by 0.2 per thousand to 2.0, but in the last 5 years, it has increased by an average of 2.4 per 10,000 population, and in the last 5 years it has increased by 0.2 per thousand, or 2.6 per 10,000 population. Morbidity is high in the Khangai and Central regions.