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Association of tobacco use, betel consumption and gastric cancer in Mizoram

2015-05-10T00:00:00Z

Title: Association of tobacco use, betel consumption and gastric cancer in Mizoram Abstract: Cancer is a disease that affects the livelihood of humankind for ages. Dietary habit and lifestyle have been attributed to the development of many forms of cancer including gastric cancer. The state of Mizoram located in the northeastern India has been recorded to be a cancer prone area. Most Mizo people indulge in the use of smoke and smokeless tobacco and betel chewing. A study in this high cancer incidence zone is necessary to determine the actual cause of the disease. In this study, we evaluate the influence of tobacco use and betel consumption on gastric cancer. We conclude that individuals with a family history of cancer who consumed betel, smoke and smokeless tobacco have a higher risk of gastric cancer. We also found an association between increased risk of gastric cancer and consumption of betel or sahdah alone and betel with sahdah

Model of Transmission Dynamicsof COVID-19 including Natural Birth Rateand considering the Differencein Death Ratesof Uninfectedand Infected Population

2022-01-01T00:00:00Z

Title: Model of Transmission Dynamicsof COVID-19 including Natural Birth Rateand considering the Differencein Death Ratesof Uninfectedand Infected Population Authors: Lalpawimawha Abstract: We have presented a mathematical model using Ordinary Differential Equations to investigate the transmission of COVID-19. We included the parameter for the natural birth rate of the susceptibles, considering the fact that births take place each day. Taking into account that the infected population would have a higher death rate than the uninfected population, we used different parameters for the death rate of the uninfected and the infected population. We estimated an 0 R of approximately 2.9, meaning that on an average each patient has been spreading the infection to 2.9 other people. The values of the parameters of the model have been estimated based on available data and numerical illustration has been carried out to describe the transmission process.

Factors affecting habitat selection by Mrs Hume’s Pheasant Syrmaticus humiae (Hume, 1881) in Mizoram, northeast India

2016-02-02T00:00:00Z

Title: Factors affecting habitat selection by Mrs Hume’s Pheasant Syrmaticus humiae (Hume, 1881) in Mizoram, northeast India Authors: Lalpawimawha Abstract: Mrs Hume’s Pheasant Syrmaticus humiae (Hume, 1881) is a globally near-threatened pheasant spe-cies. It is sparsely distributed in eastern part of Mizoram, northeast India. The factors that influ-enced the habitat selection of S. humiae in the tropical montane forest are studied during January 2013 to March 2015. Based on preliminary survey a possible site of occurrence of the species was identified in the community reserved forest (CRF) adjacent to Lengteng Wildlife Sanctuary (LWS), near Myanmar border. Line transects were laid on two separate sites to determine the habitat use by the species. Physical variables were recorded on each transect sampling site. Only eight sight-ings are recorded at the Pine dominated area having good ground cover of tall grasses. The data analysis by principal component analysis (PCA) and stepwise logistic regressions analysis showed that litter cover and temperature plays a significant role (p<0.05) in the habitat selection by S. humiae. The possible reasons for this relationship are discussed and compared with other records.

Etiology of lung cancer among the Mizo people

2016-09-10T00:00:00Z

Title: Etiology of lung cancer among the Mizo people Authors: Lalpawimawha Abstract: According to the National Cancer Registry Programme, Mizoram has the highest cancer incidence among the states of India. Lung cancer has been found to be very common among the Mizos and its etiology has never been scientifically analyzed in this high cancer incidence population. A hospi-tal based case-control study was conducted during March, 2014 to February, 2016. The study in-volved 106 histologically confirmed lung cancer patients and 212 matched cancer-free subjects act-ing as controls, all with the same ethnic background, i.e. Mizo. Among the cases, the risk of lung cancer was significantly elevated among ex-smokers (OR, 4.69; 95% CI, 2.36-9.32), but not among current smokers. Higher risks were seen for zozial smokers (OR, 2.51; 95% CI, 1.28-4.92). The in-creased risk was apparent among subjects who had smoked for ≥40 years. Exposure to environ-mental smoke at home and workplace were significantly associated with an increased risk of lung cancer. Higher risk was also observed for previous diagnosis of asthma (OR, 4.62; 95% CI, 1.75-12.23). Lower consumption of alcohol related with decreased risk of lung cancer (OR, 0.87; 95% CI, 0.37-2.05). Tobacco smoking was found to be the primary factor for developing lung cancer. Certain occupations like the transport industry, farming, carpentry or automobile works were found to increase the risk of lung cancer. Prior affliction with tuberculosis might also have the potential to increase the risk. However, low and moderate consumption of alcohol leads to de-crease risk of lung cancer.