Nevin Manimala

Rom J Morphol Embryol. 2021 Jul-Sep;62(3):723-731. doi: 10.47162/RJME.62.3.09.

ABSTRACT

OBJECTIVE: The purpose of this study was to present the experience of a single center on endoscopic ultrasound-fine-needle biopsy (EUS-FNB) of pancreatic solid tumors amenable to immunohistochemistry (IHC) assay.

PATIENTS, MATERIALS AND METHODS: Inclusion criterion for this prospective study was identifying patients with pancreatic solid tumors, by means of imaging methods, from January 2018 to February 2020, within the Department of Gastroenterology, Emergency Clinical Hospital, Bucharest, Romania. All patients underwent EUS-FNB and the harvested tissue was sent to the Department of Pathology for histopathological (HP) diagnosis and IHC assessment if tumoral origin remained undetermined.

RESULTS: A total of 57 patients were ultimately selected to take part in our study. We performed immunohistochemical analysis based on the morphological diagnosis of the pancreatic tumors and assessed cytokeratin (CK)7, CK20, caudal type homeobox 2 (CDX2), MutL homolog 1 (MLH1), MutS homolog (MSH)2, MSH6, postmeiotic segregation 2 (PMS2) for all histopathologically uncertain pancreatic ductal adenocarcinoma (PDAC) and chromogranin A, synaptophysin, pan-CK AE1∕AE3 for pancreatic neuroendocrine tumors (pNETs). Cox hazard regression was performed to identify the factors influencing the survival rate. In univariate analysis, patient survival time was significantly associated with stage, location, surgical management and CK7 positivity. Our data show a statistically significant predictive relationship between stage (regional or metastatic) and hazard for survival (p=0.015). Tumoral location in the tail (p=0.015) and radicality surgery (p=0.015) significantly decrease the survival of pancreatic cancer (PAC) patients. The presence of CK7 (p=0.015) significantly increases the survival of pancreas cancer patients.

CONCLUSIONS: EUS-FNB has opened up a new path for pancreatic tumor diagnosis providing enough tissue for HP examination and IHC. A panel of several immunomarkers might aid in providing new therapies for PAC patients.

PMID:35263400 | DOI:10.47162/RJME.62.3.09

Rom J Morphol Embryol. 2021 Jul-Sep;62(3):705-712. doi: 10.47162/RJME.62.3.07.

ABSTRACT

Epithelial-mesenchymal transition (EMT) is an essential biological process involved in the initiation and progression of cancer by which epithelial tumor cells lose their differentiated characteristics, such as cell-cell adhesion and apical-basal polarity and acquire a more invasive and∕or metastatic mesenchymal phenotype. The present study investigated the expression of immunomarkers with a role in EMT of non-melanoma skin cancers (NMSCs), such as E-cadherin, fibronectin and Slug, for a number of 50 NMSCs, represented by 30 cases of basal cell carcinomas (BCCs) and 20 cases of squamous cell carcinomas (SCCs). For BCC, the statistical analysis of the investigated immunomarkers indicated significantly differences in relation to the depth of invasion, and for E-cadherin and fibronectin with the degree of risk. In the case of SCC, the statistical analysis indicated significant differences of E-cadherin and Slug with the degree of tumor differentiation, and for fibronectin and Slug with the depth of invasion. The analysis of the distribution for the percentage values of the investigated immunomarkers in the case of BCC indicated a significant negative linear relation between E-cadherin/fibronectin and E-cadherin/Slug, and in SCC a significant negative linear relation between E-cadherin∕fibronectin, E-cadherin∕Slug and a positive linear one in the case of fibronectin∕Slug. The study indicates through the statistically significant relation between E-cadherin∕fibronectin and E-cadherin∕Slug, the EMT intervention in carcinogenesis of NMSC.

PMID:35263398 | DOI:10.47162/RJME.62.3.07

PLoS One. 2022 Mar 9;17(3):e0264498. doi: 10.1371/journal.pone.0264498. eCollection 2022.

ABSTRACT

Human papillomavirus (HPV) prevalence and genotype distribution data is important for HPV vaccine monitoring. This study investigated the prevalence and distribution of HPV genotypes in cervical lesions of unvaccinated women referred to Nelson Mandela Academic Hospital Gynaecology Department due to different abnormal cervical conditions. A total of 459 women referred to the Nelson Mandela Academic Hospital Gynaecology department were recruited. When the cervical biopsy was collected for histopathology, an adjacent biopsy was provided for HPV detection. Roche Linear Array HPV genotyping assay that detects 37 HPV genotypes was used to detect HPV infection in cervical biopsies. HPV infection was detected in 84.2% (383/455) of participants. The six most dominant HPV types were HPV-16 (34.7%), followed by HPV-35 (17.4%), HPV-58 (12.1%), HPV-45 (11.6%), HPV-18 (11.4%) and HPV-52 (9.7%). HPV-35 was the third most dominant type among women with cervical intraepithelial lesion (CIN)-2 (12.6%; single infection: 5.7% and multiple infection: 6.9%), the second most dominant type among women with CIN3 (22.2%; single infection: 8.0% and multiple infection: 14.2%); and the fourth most dominant type among women with cervical cancer (12.5%; single infection: 7.1% and multiple infection: 5.4%). A proportion of 41.1% (187/455) was positive for HPV types targeted by the Cervarix®, 42.4% (193/455) by Gardasil®4, and 66.6% (303/455) by Gardasil®9. There was a statistically significant increase when the prevalence of women infected with HPV-35 only or with other HPV types other than Gardasil®9 types was included to those infected with Gardasil®9 HPV types (66.6%, 303/455 increase to 76.0%, 346/455, p = 0.002). High HPV-35 prevalence in this population, especially among women with CIN3 warrants attention since it is not included in current commercially available HPV vaccines.

PMID:35263376 | DOI:10.1371/journal.pone.0264498

PLoS One. 2022 Mar 9;17(3):e0265061. doi: 10.1371/journal.pone.0265061. eCollection 2022.

ABSTRACT

INTRODUCTION: Even though people of the world were eagerly waiting for the hope of vaccine development, vaccine hesitancy is becoming the top concern in both developed and developing countries. However, there is no adequate evidence regarding the attitude and perception of health professionals towards the COVID 19 vaccine in resource-limited settings like Ethiopia. The aim of this study was to assess health professionals’ attitudes and perceptions towards COVID 19 vaccine in Western Ethiopia.

METHODS: An institution-based cross-sectional study was conducted among health care workers found in Nekemte town from April 14-21, 2021. A total of 439 health professionals present on duty during the study period was included in the study. The data were collected by using self-administered questionnaire. Epidata version 3.2 was used for data entry, and STATA version 14 was used for data analysis. The binary logistic regression model was employed to determine factors associated with the attitude towards COVID-19 vaccination. Adjusted Odds Ratio (AOR) with 95% confidence intervals was computed and statistical significance was declared at a 5% level (p-value < 0.05).

RESULT: A total of 431 health professionals participated in the study yielding a response rate of 98.1%. The results indicated that 51.28% (95%CI: 45.12%, 57.34%) of health professionals had a favorable attitude towards COVID-19 vaccination. Having good knowledge about the COVID-19 vaccine (AOR = 0.38, 95%CI: 0.22, 0.64, P-value <0.001) was negatively associated with unfavorable attitude towards COVID-19 vaccine, whereas age less than 30 years (AOR = 2.14, 95%CI:1.25,3.67, P-value <0.001), working in a private clinic (AOR = 7.77, 95% CI: 2.19, 27.58, P-value <0.001) and health center (AOR = 2.45, 95%CI: 1.01, 5.92, P-value = 0.045) were positively associated with unfavorable attitude towards COVID-19 vaccine.

CONCLUSION AND RECOMMENDATION: In general, the attitude and perception of health care professionals toward the COVID-19 vaccine in the study area were unsatisfactory. Knowledge about the COVID-19 vaccine, age of health care workers, and place of work are the factors which affects attitude towards COVID-19 vaccine. Thus, we recommend the media outlets and concerned bodies to work to develop trust among the public by disseminating accurate and consistent information about the vaccine.

PMID:35263375 | DOI:10.1371/journal.pone.0265061

PLoS One. 2022 Mar 9;17(3):e0264360. doi: 10.1371/journal.pone.0264360. eCollection 2022.

ABSTRACT

Appropriate descriptions of statistical methods are essential for evaluating research quality and reproducibility. Despite continued efforts to improve reporting in publications, inadequate descriptions of statistical methods persist. At times, reading statistical methods sections can conjure feelings of dèjá vu, with content resembling cut-and-pasted or “boilerplate text” from already published work. Instances of boilerplate text suggest a mechanistic approach to statistical analysis, where the same default methods are being used and described using standardized text. To investigate the extent of this practice, we analyzed text extracted from published statistical methods sections from PLOS ONE and the Australian and New Zealand Clinical Trials Registry (ANZCTR). Topic modeling was applied to analyze data from 111,731 papers published in PLOS ONE and 9,523 studies registered with the ANZCTR. PLOS ONE topics emphasized definitions of statistical significance, software and descriptive statistics. One in three PLOS ONE papers contained at least 1 sentence that was a direct copy from another paper. 12,675 papers (11%) closely matched to the sentence “a p-value < 0.05 was considered statistically significant”. Common topics across ANZCTR studies differentiated between study designs and analysis methods, with matching text found in approximately 3% of sections. Our findings quantify a serious problem affecting the reporting of statistical methods and shed light on perceptions about the communication of statistics as part of the scientific process. Results further emphasize the importance of rigorous statistical review to ensure that adequate descriptions of methods are prioritized over relatively minor details such as p-values and software when reporting research outcomes.

PMID:35263374 | DOI:10.1371/journal.pone.0264360

PLoS One. 2022 Mar 9;17(3):e0264925. doi: 10.1371/journal.pone.0264925. eCollection 2022.

ABSTRACT

PURPOSE: We analyzed skin images with various color space models to objectively assess radiodermatitis severity in patients receiving whole-breast radiotherapy.

METHODS: Twenty female patients diagnosed with breast cancer were enrolled prospectively. All patients received whole-breast radiotherapy without boost irradiation. Skin images for both irradiated and unirradiated breasts were recorded in red-green-blue (RGB) color space using a mobile skin analysis device. For longitudinal analysis, the images were acquired before radiotherapy (RTbefore), approximately 7 days after the first fraction of radiotherapy (RT7days), RT14days, and approximately 10 days after radiotherapy completion (RTafter). Four color space models (RGB, hue-saturation-value (HSV), L*a*b*, and YCbCr models) were employed to calculate twelve color space parameters for each skin image. Skin dose measurements for irradiated breasts were performed using nanoDot optically stimulated luminescent dosimeters on the first fraction of radiotherapy. Subsequently, acute radiation dermatitis in each patient was assessed according to the Radiation Therapy Oncology Group scoring criteria at both RT14days and RTafter. Finally, several statistical analysis methods were applied to investigate the performance of the color space parameters to objectively assess the radiodermatitis.

RESULTS: Owing to radiation-induced skin damage, R value of RGB model as well as S and V values of the HSV model for irradiated breasts increased significantly, while those for unirradiated breasts showed smaller increases. These parameters showed the longitudinal changes in color space parameters within each group and between groups over time with statistical significance. Strong correlations of the parameters for irradiated breasts at RT7days with skin doses and those at RTafter were observed with statistical significance.

CONCLUSION: The R value of RGB model as well as the S and V values of HSV model showed relatively better performance in evaluating the acute radiation dermatitis. These color space parameters could therefore serve as useful tools to assess radiodermatitis severity in a dose-dependent manner.

PMID:35263372 | DOI:10.1371/journal.pone.0264925

PLoS One. 2022 Mar 9;17(3):e0264852. doi: 10.1371/journal.pone.0264852. eCollection 2022.

ABSTRACT

BACKGROUND: Sputum smear microscopy is simple and feasible technique to assess the presence of acid-fast bacilli (AFB) in the respiratory tract of patients with Drug Resistance Tuberculosis (DR-TB). Conversion of sputum smear from positive to negative is considered as an interim indicator of efficacy of anti-tubercular treatment and the program effectiveness. Although evidences regarding the factors affecting the sputum smear conversion are available on drug susceptible TB patients, there is dearth of literature about smear conversion and its predictors among DR-TB patients in the study setting. Hence, shortening the time to sputum smear conversion is desirable to reduce the likelihood of mycobacterial transmission. This study has therefore aimed at estimating the median time of sputum smear conversion and to determine its predictors.

METHODS: This was a retrospective follow-up study conducted among DR-TB patients registered for second-line anti-TB treatment in the four hospitals of Amhara regional state, Northwest Ethiopia. Of all patients enrolled to DR-TB treatment in the study setting from 2010 to 2017, 436 patients have been include for this study who fulfilled the eligibility criteria. The cox proportional hazard model was fitted and the adjusted hazard ratio (AHR) with 95% confidence interval (CI) and p <0.05 was used to declare statistical significance of the variables associated with the smear conversion.

RESULTS: From the 436 patients with sputum smear positive at baseline, 351 (80.5%) converted sputum smear at a median time of 48 (IQR: 30-78) days. The median time of smear conversion was 59 (95% CI: 42, 74) and 44 (95% CI: 37, 54) days among patients who had and had no history of alcohol drinking, respectively. Similarly, the median time to smear conversion was 61 (95% CI: 36, 73) days among patients with comorbid conditions and 44 (95% CI: 38, 54) days among patients with no comorbid conditions. In the multi-variable analysis, only history of alcohol consumption [AHR = 0.66 (0.50, 0.87)] was found to delay significantly the rate of sputum smear conversion.

CONCLUSION: In our study, the median time of sputum smear conversion was with in the expected time frame of conversion. History of alcohol consumption was found to delay significantly the rate of sputum smear conversion. The DR-TB patients are strongly advised to avoid alcohol consumption.

PMID:35263367 | DOI:10.1371/journal.pone.0264852

PLoS One. 2022 Mar 9;17(3):e0264338. doi: 10.1371/journal.pone.0264338. eCollection 2022.

ABSTRACT

BACKGROUND AND OBJECTIVES: Human trafficking is a significant problem in which healthcare workers are in a unique position to intervene. This study sought to determine the self-reported knowledge levels of healthcare providers most likely to come in direct contact with victims of human trafficking.

METHODS: An anonymous survey assessing self-reported knowledge of human trafficking was developed and distributed online. Demographic information and questions pertaining to training and knowledge of trafficking in a healthcare setting were asked. The primary outcomes were descriptive statistics and secondary outcomes were comparisons among demographic groups. Qualitative methodology via content analysis was implemented on an open-ended question.

RESULTS: The 6,603 respondents represented all regions of the country. Medical, nursing, and physician assistant students comprised 23% of the sample, while 40% were either physicians, fellows, or residents. Less than half the respondents (42%) have received formal training in human trafficking, while an overwhelming majority (93%) believe they would benefit by such training. Overall, respondents thought their level of knowledge of trafficking was average to below average (mean = 2.64 on a 5-point scale). There were significant differences in knowledge of trafficking by age group (p < .001), region (p < .001), and educational training level (p < .001). 949 respondents (14.4%) provided free-text comments that further described their opinions.

CONCLUSION: Most respondents stated they have not received training but felt they would benefit from it. There were significant differences between demographic groups. Further innovation is needed to design a universally appropriate curriculum on human trafficking that is accessible to all healthcare providers as well as mandatory training programs for healthcare institutions.

PMID:35263364 | DOI:10.1371/journal.pone.0264338

PLoS One. 2022 Mar 9;17(3):e0264373. doi: 10.1371/journal.pone.0264373. eCollection 2022.

ABSTRACT

BACKGROUND: Partograph is a simple, inexpensive & economical tool that provides a continuous graphical overview of labour and prevents prolonged and obstructed labor. The purpose of the study is to assess partograph utilization and associated factors among obstetric care givers in governmental health institutions of Jigjiga and Degehabur Towns, Somali Region, Ethiopia.

METHODS: An institution based cross-sectional quantitative study was carried out among obstetric care givers who were working in governmental health institutions. Systematic random sampling with proportional to size allocation was used to recruit a total of 235 study participants. Self-administered questionnaire was used to collect data in this study. Three data collectors and one supervisor were recruited and trained to facilitate the data collection activities. Data were entered into Epi data software and exported into SPSS (23.0) for analysis. Descriptive statistics, bivariate and multivariate logistic regression were computed to determine proportions and significant association with partograph utilization among obstetric care givers.

RESULT: Less than half of obstetric care givers, 41% (95%CI: 34.5-46.9) had good partograph utilization to monitor progress of labor. Being female [AOR = 2.36, 95%CI:(1.03-5.44)], availability of partograph [AOR = 4.633, 95%CI: (1.698-12.640)], having good knowledge [AOR = 6.90, 95%CI:(2.62-18.18)], receiving on job training [AOR = 15.46, 95%CI:(6.95-34.42)] and positive attitude towards partograph [AOR = 2.99, 95%CI:(1.25-7.14)] were significantly associated with partograph utilization.

CONCLUSION: Partograph utilization in this study was low. Especial emphasizes and interventions should be given to periodic on job training that improve knowledge and attitude of obstetric care givers to increase partograph utilization.

PMID:35263361 | DOI:10.1371/journal.pone.0264373

PLoS One. 2022 Mar 9;17(3):e0264895. doi: 10.1371/journal.pone.0264895. eCollection 2022.

ABSTRACT

BACKGROUND: Smoke-free legislation banning tobacco smoking in public places was implemented across Nepal in 2014 with the ambition to reduce the impact of second-hand smoking. As part of a comprehensive policy package on tobacco control, the implementation of the legislation has seen a marked reduction in tobacco consumption. Yet there remains uncertainty about the level of compliance with smoke-free public places.

OBJECTIVES: This study assesses the compliance with smoke-free laws in public places and the factors associated with active smoking in public places in Biratnagar Metropolitan City, Nepal.

METHODS: A cross-sectional study was conducted in the Biratnagar metropolitan city in Province 1 of Nepal from July to December 2019. A total of 725 public places within the metropolitan city were surveyed using a structured survey tool. Active smoking was the primary outcome of the study which was defined as smoking by any person during the data collection time at the designated public place.

RESULTS: The overall compliance with smoke-free legislation was 56.4%. The highest compliance (75.0%) was observed in Government office buildings. The lowest compliance was observed in eateries, entertainment, and shopping venues (26.3%). There was a statistically significant association between active smoking and the presence of ‘no smoking’ notices appended at the entrance and the odds of active smoking in eateries, entertainment, hospitality, shopping venues, transportations and transits was higher compared to education and health care institutions. None of the ‘no smoking’ notices displayed fully adhered to the contents as prescribed by the law.

CONCLUSION: As more than half of the public places complied with the requirements of the legislation, there was satisfactory overall compliance with the smoke-free public places law in this study. The public venues (eateries, shopping venues and transportations) that are more frequently visited and have a high turnover of the public have lower compliance with the legislation. The content of the message in the ‘no smoking’ notices needs close attention to adhere to the legal requirements.

PMID:35263360 | DOI:10.1371/journal.pone.0264895