6 results on '"Kelvin Stefan Osafo"'
Search Results
2. Trichomonas vaginalis and human papillomavirus: Association with the microbiota and burden on the cervix
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Kelvin Stefan Osafo, Wenyu Lin, Binhua Dong, and Pengming Sun
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Human Papillomavirus ,Trichomonas vaginalis ,Vagina microbiota ,Co-infection ,Gynecology and obstetrics ,RG1-991 - Abstract
Trichomoniasis and HPV infection are common non-viral and viral sexually transmitted diseases worldwide. Emerging evidence shows that the female genital tract and its microbiota are greatly affected by these pathogens. However, the relationship between Trichomonas vaginalis, the vaginal microbiome, and High-risk (HR)-HPV infection is complex and multifaceted. Studies have proven that concurrent infections of HIV and HPV increase the risk of cervical cancer. With this basis, a question arises: How does the concurrent infection of trichomonas vaginalis and HPV affect genital tract health? Does this concurrent infection enhance or inhibit the development of cervical lesions? This review aims to bring light to these questions. This review also covers the association of trichomonas vaginalis and HPV with the microbiota of the genital tract.
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- 2023
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3. ERRα promotes glycolytic metabolism and targets the NLRP3/caspase-1/GSDMD pathway to regulate pyroptosis in endometrial cancer
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Pingping Su, Xiaodan Mao, Jincheng Ma, Lixiang Huang, Lirui Yu, Shuting Tang, Mingzhi Zhuang, Zhonglei Lu, Kelvin Stefan Osafo, Yuan Ren, Xinrui Wang, Xite Lin, Leyi Huang, Xiaoli Huang, Elena Ioana Braicu, Jalid Sehouli, and Pengming Sun
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Endometrial cancer ,Pyroptosis ,Metabolic reprogramming ,ERRα ,Cisplatin resistance ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
Abstract Background Tumor cells can resist chemotherapy-induced pyroptosis through glycolytic reprogramming. Estrogen-related receptor alpha (ERRα) is a central regulator of cellular energy metabolism associated with poor cancer prognosis. Herein, we refine the oncogenic role of ERRα in the pyroptosis pathway and glycolytic metabolism. Methods The interaction between ERRα and HIF-1α was verified using co-immunoprecipitation. The transcriptional binding sites of ERRα and NLRP3 were confirmed using dual-luciferase reporter assay and cleavage under targets and tagmentation (CUT&Tag). Flow cytometry, transmission electron microscopy, scanning electron microscopy, cell mito stress test, and extracellular acidification rate analysis were performed to investigate the effects of ERRα on the pyroptosis pathway and glycolytic metabolism. The results of these experiments were further confirmed in endometrial cancer (EC)-derived organoids and nude mice. In addition, the expression of ERRα-related pyroptosis genes was analyzed using The Cancer Genome Atlas and Gene Expression Omnibus database. Results Triggered by a hypoxic microenvironment, highly expressed ERRα could bind to the promoter of NLRP3 and inhibit caspase-1/GSDMD signaling, which reduced inflammasome activation and increased pyroptosis resistance, thereby resulting in the resistance of cancer cells to cisplatin. Moreover, ERRα activated glycolytic rate-limiting enzyme to bridge glycolytic metabolism and pyroptosis in EC. This phenomenon was further confirmed in EC-derived organoids and nude mice. CUT & Tag sequencing and The Cancer Genome Atlas database analysis showed that ERRα participated in glycolysis and programmed cell death, which resulted in EC progression. Conclusions ERRα inhibits pyroptosis in an NLRP3-dependent manner and induces glycolytic metabolism, resulting in cisplatin resistance in EC cells.
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- 2023
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4. Peripheral blood lymphocytes influence human papillomavirus infection and clearance: a retrospective cohort study
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Ye Li, Yebin Feng, Yanlin Chen, Wenyu Lin, Hangjing Gao, Ming Chen, Kelvin Stefan Osafo, Xiaodan Mao, Yafang Kang, Leyi Huang, Dabin Liu, Shuxia Xu, Lixiang Huang, Binhua Dong, and Pengming Sun
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Human papillomavirus, peripheral lymphocyte subsets, HPV infection ,HPV clearance ,Prediction model ,Infectious and parasitic diseases ,RC109-216 - Abstract
Abstract Background There is a close correlation between HPV infection and systemic immune status. The purpose of this study was to determine which lymphocytes in peripheral blood influence human papillomavirus (HPV) infection and to identify whether peripheral blood lymphocyte (PBL) subsets could be used as biomarkers to predict HPV clearance in the short term. Methods This study involved 716 women undergoing colposcopy from 2019 to 2021. Logistic and Cox regression were used to analyze the association of PBLs with HPV infection and clearance. Using Cox regression, bidirectional stepwise regression and the Akaike information criterion (AIC), lymphocyte prediction models were developed, with the C-index assessing performance. ROC analysis determined optimal cutoff values, and their accuracy for HPV clearance risk stratification was evaluated via Kaplan‒Meier and time-dependent ROC. Bootstrap resampling validated the model and cutoff values. Results Lower CD4 + T cells were associated with a higher risk of HPV, high-risk HPV, HPV18 and HPV52 infections, with corresponding ORs (95% CI) of 1.58 (1.16–2.15), 1.71 (1.23–2.36), 2.37 (1.12–5.02), and 3.67 (1.78–7.54), respectively. PBL subsets mainly affect the natural clearance of HPV, but their impact on postoperative HPV outcomes is not significant (P > 0.05). Lower T-cell and CD8 + T-cell counts, as well as a higher NK cell count, are unfavorable factors for natural HPV clearance (P
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- 2023
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5. Safety Assessment of Concurrent Vaccination with the HPV Vaccine and the COVID-19 Vaccine in Fujian Province, China: A Retrospective Study
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Yan Zhang, Yuhang Zhang, Binhua Dong, Wenyu Lin, Yuxuan Huang, Kelvin Stefan Osafo, Xite Lin, Tingting Jiang, Yu Zhang, Huachun Zou, and Pengming Sun
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human papillomavirus ,HPV vaccine ,COVID-19 vaccine ,concurrent ,immunizations ,safety ,Medicine - Abstract
During acute respiratory infections, women may concurrently receive human papillomavirus (HPV) and respiratory vaccines, as observed during the coronavirus disease 2019 (COVID-19) pandemic in China. However, few studies have assessed the safety of such concurrent administration, which could impact HPV vaccination schedules. This study analyzes the safety and optimal sequence of concurrent HPV and COVID-19 vaccinations. For this purpose, we surveyed women with both vaccines from January to October 2023 in Fujian Province, China. During this process, we collected vaccination history and adverse event (AE) data via telephone or interviews. Participants were grouped as Before, Concurrent, or After based on their vaccination sequence. A Chi-squared test, exact Fisher tests, and logistic regression were used to analyze the incidence of AEs and factors influencing vaccine safety. Overall, 1416 eligible participants were included. Although overall AE risk with the HPV vaccine was unaffected by vaccination sequence, individual AEs varied statistically between groups, including pain at the vaccination site (p < 0.001) and prolonged menstruation duration (p = 0.003). Based on the results, the optimal sequence would be to receive the HPV vaccine after the COVID-19 vaccine (After group). This insight may guide future emergency vaccination sequences for HPV and other respiratory infectious diseases.
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- 2024
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6. The psychological impact of COVID-19 on university students in China and Africa
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Pamela Marahwa, Panashe Makota, Donald Tafadzwa Chikomo, Tawanda Chakanyuka, Tsitsi Ruvai, Kelvin Stefan Osafo, Tianwen Huang, and Limin Chen
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Medicine ,Science - Abstract
The COVID-19 pandemic is alarmingly a global health catastrophe that has created an unprecedented mental health decline especially in young adults, who have been noted to be a vulnerable population. In this study, we investigated the prevalence of depression and anxiety in university students in China and Africa during the COVID-19 pandemic, the significant factors contributing to the prevalence of anxiety and depression, the differences in factors affecting the different groups being investigated and to emphasize that psychological intervention are as important as the physical interventions during and after the pandemic. The study was conducted through online surveys, with 684 participants using Patient Health Questionnaire-9 and Generalized Anxiety Disorder-7 standardized scales. Comparing all groups combined, of the 636 participants, 361 (56.8%) had depression and 227 (35.7%) had anxiety. Chi squared tests at significance level (P
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- 2022
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