LEI 11036 PDF

  • August 13, 2019

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Prevalence and correlation of oral lesions among tobacco smokers, tobacco chewers, areca nut and alcohol users.

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All relevant case-control leei were screened, irrespective of languages. And two studies were excluded as they were concerned of prognosis and only contained the cases, lacking of controls.

The mobile sink moves along a predefined circle trajectory, and sensor nodes relay data packages in a greedy manner. Pathology and genetics of head and neck tumours: The assessment was performed independently by two investigators and the inconformity was solved by a discussion, or consultation if necessary.

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The confused results may be resulted from few studies, few subjects, or other potential factors, and the more credible conclusions need the future studies containing large sample sizes and well-designed criteria to confirm.

International Journal of Biological Sciences. Searched results were in dependently screened by two authors according to the titles, abstracts and types of articles, and irrelevant papers were dropped out.

The following characteristic were collected from each study, ethnicity, country, sample size, control source, matching contents, the Hardy-Weinberg Equilibrium HWEand genetic distribution of cases and controls.

In order to further explore the observed heterogeneity in dominant model and additive model, subgroup analyses were performed by ethnicity, source of control, and HWE and the details were shown in Table 2. A case-control study in South Indians. Smoking and drinking in relation to oral and pharyngeal cancer.

Bias in meta-analysis detected by a simple, graphical test. Polymorphism of 8q24 rsl and breast cancer risk: The research results of human genome project HGP have demonstrated that different individuals are all lie Besides, six papers were excluded because of failing to provide sufficient data. Hence, investigating the risk factors and developing the early diagnosis for treatment and prevention of OSCC are urgently needed. Therefore, it is more reasonable to assess the association of gene polymorphisms with risks of OSCC, oral adenocarcinoma and other types, separately.


The process of BTDGS data gathering includes sink location broadcasting phase, data collection phase, and sink leaving broadcasting phase. Gene-environment interaction involved in oral carcinogenesis: Gene polymorphisms, tobacco exposure and oral cancer susceptibility: Genetic polymorphisms of drug-metabolizing enzymes and susceptibility to head-and-neck squamous-cell carcinoma. The NOS system categorizes into three dimensions including leii, comparability, and ascertainment of outcome.

CYP1A1 polymorphisms and the risk of upper aerodigestive tract cancers in an Indian population. Summaries of these studies were presented in Table 1 which included the first author, ethnicity, country, number and characteristics 11306 cases and controls, and other relevant information.

Third, we performed a subgroup analysis by ethnicity, source of control, HWE, but the other factors, such as gender, age, were not performed for data limitations. Effects of the consumption of alcohol in the oral cavity: Therefore, the study might only have limited statistical power.

Genetic polymorphisms of drug-metabolizing enzymes and susceptibility to oral cavity cancer. Tobacco use and oral cancer: 11063 one potential eligible article was obtained by screening the lel of reviews. In wireless multimedia sensor networks WMSNsthe energy consumption of multimedia data type kei much higher than that of traditional wireless sensor networks WSNs.

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Based on what mentioned above and for obtaining a powerful conclusion concerning about risks of OSCC and CYP1A1 IleVal polymorphism, we performed this systematical meta-analysis to evaluate it. Oral cancer is one of the most commonly occurred cancers worldwide and causes a considerable problem to human health being a high mortality rates and disfigurement [ 12 ].

However, ‘the best available evidence’ might not be always equal to ‘sufficient evidence’. Currently, the published evidences showed that there were significant associations of gene polymorphisms with the susceptibility of many cancers, such as Glutathione S-transferase GSTs and Cytochrome P A1 CYP1A1 gene polymorphisms with lung of squamous cell carcinoma, polymorphism of 8q24 rsl with risk of breast cancer, CYP1A1 and GSTs gene polymorphisms with head and neck cancer [ 12 – 19 ].


In addition, seven studies were excluded because the cases just were diagnosed oral cancer, were not confirmed the identification of OSCC. GSTM1 enzyme concentration and enzyme activity in correlation to the genotype of detoxification enzymes in squamous cell carcinoma of the oral cavity.

The data of all four models indicated that there were not significant publication biases for all them. It is based on a virtual binary-tree infrastructure. As for the other three models homozygous model, dominant model and allele comparing modelthey failed to show obvious association between CYP1A1 IleVal polymorphism and OSCC risk, and the heterogeneities among studies were observed in them, respectively.

Null Glutathione S-transferase T1 and M1 genotypes and oral cancer susceptibility in China and India–a meta-analysis. Epidemiology of oral cancer in Asia in the past decade–an update Surgery alone for squamous cell carcinoma of the oral cavity: When all of the four models were performed sensitivity analysis, the estimates in these four models changed between lower CI limits and upper CI limits, suggesting the results in this meta-analysis were stable.

We searched the following databases: Second, in the current meta-analysis, only 13 articles with cases and controls were included. Using the recessive model including 10 trials with subjects as an example, we performed the TSA and found that the required information size to demonstrate clear conclusions was subjects Figure 3.

Evidence from 13 Investigations. Based on the limitations mentioned above, the results should be considered with caution. Then we downloaded the relevant papers and further screened to identify potentially eligible studies.