Genetic variants in DNA double-strand break repair genes and risk of salivary gland carcinoma: a case-control study

A review of the current concerns about misconduct in medical sciences publications and the consequences

BACKGROUND

In the new era of publication, scientific misconduct has become a focus of concern including extreme variability of plagiarism, falsification, fabrication, authorship issues, peer review manipulation, etc. Along with, overarching theme of "retraction" and "predatory journals" have emphasized the importance of studying related infrastructures.

METHODS

Information used in this review was provided through accessing various databases as Google Scholar, Web of Science, Scopus, PubMed, Nature Index, Publication Ethics and Retraction Watch. Original researches, expert opinions, comments, letters, editorials, books mostly published between 2010 and 2020 were gathered and categorized into three sections of "Common types of misconduct"," Reasons behind scientific misconduct" and "Consequences". Within each part, remarkable examples from the past 10 years cited in Retraction Watch are indicated. At last, possible solution on combating misconduct are suggested.

RESULTS

The number of publications are on the dramatic rise fostering a competition under which scholars are pushed to publish more. Consequently, due to several reasons including poor linguistic and illustration skills, not adequate evaluation, limited experience, etc. researchers might tend toward misbehavior endangering the health facts and ultimately, eroding country, journal/publisher, and perpetrator's creditability. The reported incident seems to be enhanced by the emergence of predatory with publishing about 8 times more papers in 2014 than which is in 2010. So that today, 65.3% of paper retraction is solely attributing to misconduct, with plagiarism at the forefront. As well, authorship issues and peer-review manipulation are found to have significant contribution besides further types of misconduct in this duration.

CONCLUSION

Given the expansion of the academic competitive environment and with the increase in research misconduct, the role of any regulatory sector, including universities, journals/publishers, government, etc. in preventing this phenomenon must be fully focused and fundamental alternation should be implemented in this regard.

Involvement of repair genes in oral cancer: A systematic review

Among the types of cancers that may occur in the oral cavity, squamous cell carcinomas (SCC) of the mouth have a higher incidence and are associated with increased rates of morbidity and mortality. Among steps from the beginning to the progression of the tumour, DNA Repair System is highlighted. The present study aims to conduct a systematic review of the literature on the expression of the repair genes hMSH2 and hMSH6 in patients with SCC in the mouth and oropharyngeal region. The search was performed in databases such as PubMed, Lilacs, and Scielo and included articles published in English from 1999 until 2015. The search in the above-mentioned databases initially yielded 15 scientific articles related to the proposed objective. After a detailed analysis of each of them, only 8 were included in the present review, precisely because they met the inclusion criteria determined in the method. All the reviewed works were unanimous in recognizing the veracity and complexity of the Genomic Repair System, also called Mismatch Repair System, confirming the participation of repair gene proteins (such as hMSH2 and hMSH6) in patients with oral cancer and even of lesions that are susceptible to malignization. SIGNIFICANCE OF THE STUDY: Worldwide, there are an estimated 300 thousand new cases of oral cancer per year. Studies have shown a greater risk in individuals who are smokers and alcohol consumers in developing mouth cancer. Many steps are observed from the beginning to the progression of the tumour, highlighted among them is the moment in which genetic, and epigenetic alterations will interfere in the functioning of the DNA Repair System. This work presents a survey of current knowledge about the involvement of repair genes, especially those of the MutSα system, in the development and progression of oral cancer.

Radiation-associated neoplasia: clinical, pathological and genomic correlates

Ionizing radiation is an established risk factor for the development of benign and malignant tumours. The epidemiology of radiation-associated neoplasia has been studied over the decades in diverse populations, including Japanese atomic bomb survivors, exposed communities following the Chernobyl nuclear power plant disaster, and paediatric and adult populations receiving therapeutic irradiation. Radiation has been associated with an increased risk of neoplasia throughout the human body, with some sites showing a markedly increased relative risk of developing tumours (thyroid; soft tissues), depending on patient age and the context of exposure. Although the mechanisms of cellular injury and repair resulting from ionizing radiation are well described, the genomics of radiation-induced tumours are still relatively poorly understood, with some exceptions, such as RET rearrangement in thyroid carcinomas following iodine-131 exposure and MYC amplification in cutaneous angiosarcoma following chest wall irradiation for breast cancer. This review will provide a general overview of the epidemiology, molecular mechanism, pathology and genomics of radiation-associated neoplasia in humans.