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A 48 year old woman was referred by her general practitioner to an oral and maxillofacial surgeon because of an asymptomatic, slow growing intra-oral tumor since three years. There were no sensory and motor symptoms. A well-defined tumor of 5 cm in diameter was located in the right cheek between the zygomaticus arch and the labial commissure. The skin and the intra-oral mucosa were intact without any change in colour or texture. The MRI showed a solitary mass with benign characteristics. A transoral radical excisional biopsy was performed under general anesthesia. Histopathological examination revealed a rare soft tissue perineurioma tumor.Tick-borne encephalitis (TBE) is one of the most common viral neuroinfections in Poland. Detection of specific IgM and IgG anti- TBE antibodies in the serum or cerebrospinal fluid with enzyme-linked immunosorbent assay (ELISA) is a method of choice in TBE diagnostics. No effective antiviral treatment is available for TBE. Increased intracranial pressure, epileptic seizures, and other neurological symptoms in the course of TBE are managed with standard procedures. A routine use of corticosteroids is not recommended. Adults with TBE-related neurological sequelae should undergo physical mobilization and periodic neurological assessments. All patients ought to control their psychological condition and visit a physician in case of worrisome symptoms. Additionally, children need to undergo regular psychological and otolaryngologic consultations. Notably, TBE cases are reported across Poland; therefore, the entire country must be considered as a TBE risk region. The degree of endemicity can be variable in particularcommended. Med Pr. 2021;72(2)193-210.Chromium (Cr) is a very common element. It occurs in 2 oxidation states, Cr(III) and Cr(VI). Although Cr(III) is not considered an element essential for mammals, it raises lots of controversy due to its role in the body. While Cr(III) action should be considered an effect of pharmacological action, Cr(VI) is included in the first group of carcinogens for humans. Moreover, it induces numerous pathological changes in the respiratory, urinary, reproductive and digestive systems. In addition, Cr(VI) is used in many industry branches, causing millions of workers all over the world to be exposed to Cr(VI) compounds. A considerable number of the occupationally exposed individuals are in favor of a deep analysis of the mechanisms of Cr(VI) action and a search for a way to reduce its negative impact on the human body. Numerous reactive oxygen species inducing oxidative stress and causing various damage are produced during Cr(VI) reduction in the cells. A good balance between antioxidants and pro-oxidants can reduce Cr(VI)- induced damage. The influence of vitamins and microelements on the adverse Cr(VI) effects has no systematic research results summary. Therefore, this work focuses on the role of dietary antioxidants such as vitamins and microelements in the prevention of Cr(VI) adverse health effects. Numerous studies have revealed a protective influence of vitamins (mainly vitamins E and C) as well as microelements (especially selenium) on the reduction of Cr(VI)-induced adverse changes. A potential protective effect of these ingredients may be useful in occupational groups that are particularly exposed to Cr(VI). However, more research in this area is required. Coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome virus 2 (SARS-CoV-2) had spread worldwide since December 2019 and became a pandemic in March 2020. The diagnosis of an active infection is based on the real-time reverse transcriptase-polymerase chain reaction (RT-PCR) from the nasopharyngeal swab specimen. The aim of the current analysis was to assess the usefulness of the rapid serological tests for diagnosing SARS-CoV-2 infections. The rapid serological tests detecting IgG/IgM antibodies for SARS-CoV-2 were voluntarily performed in asymptomatic employees of 2 companies. https://www.selleckchem.com/products/gs-9973.html The examination was conducted at the date and time selected online by the study participants. The testing team consisted of 2 nurses collecting the samples and 1 doctor who interpreted the results. Each positive rapid test result was verified by an RT-PCR examination from a nasopharyngeal swab. The testing kits named Vazyme 2019-nCoV IgG/IgM Detection Kit (Colloidal Gold-Based) were provided by the employer along with the manual and certificates. The overall interest in testing among employees was below the employer's expectations and reached 30% and 20% in each of the 2 companies, respectively. A total of 516 participants were included in the analysis. Ten positive results of the rapid tests were documented, including 7 for IgM and 3 for IgG antibodies. No positive result was confirmed by the detection of the genetic material of the SARS-CoV-2 by the RT-PCR examination. Herein, the authors demonstrated the uselessness of rapid serological tests performed in asymptomatic volunteers for diagnosing SARS-CoV-2 infections. Int J Occup Med Environ Health. 2021;34(2)203-9. Herein, the authors demonstrated the uselessness of rapid serological tests performed in asymptomatic volunteers for diagnosing SARS-CoV-2 infections. Int J Occup Med Environ Health. 2021;34(2)203-9. The burden of stress experienced by dentistry students has been the subject of numerous studies aimed at defining the strongest stressors, and at reducing their intensity to improve the conditions and, consequently, the quality of education. Such studies have never been performed in the conditions of a pandemic caused by a new, unknown coronavirus. Therefore, the objective of the study was to identify the sources of their stress in the course of the studies, with reference to the COVID‑19 pandemic. A total of 334 dentistry students of the Institute of Dentistry at the Jagiellonian University Medical College were invited to take part in the study. They represented a range from the first to the fifth year of studies in the 2019/2020 academic year. The tool employed in the study was the (DES) questionnaire and 11 supplementary questions related to the pandemic. The study was carried out on June 1-25, 2020. The participation rate was 72%. Academic work presented the highest level of stress. A comparison of the overall levels of stress in particular domains as well as questions included in the DES survey revealed significant differences between students of individual years of studies in the 2019/2020 academic year.
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