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ABSTRACT Background: Ovarian cancer is a fatal gynecologic malignancy. Long non-coding RNA (lncRNA) has been verified to serve as key regulator in ovarian cancer tumorigenesis. Objective: The aim of the study was to study the functions and mechanism of lncRNA PITPNA-AS1 in ovarian cancer cellular process. Methods: Clinical ovarian cancer samples were collected and stored at an academic medical center. Cellular fractionation assays and fluorescence in situ hybridization were conducted to locate PITPNA-AS1 in OC cells. TUNEL staining, colony-forming assays, and Transwell assays were performed for evaluating cell apoptosis as well as proliferative and migratory abilities. Western blot was conducted for quantifying protein levels of epithelial-mesenchymal transition markers. The binding relation between genes was verified by RNA pulldown, RNA immunoprecipitation, and luciferase reporter assays. Gene expression levels in ovarian cancer tissues and cells were subjected to RT-qPCR. Results: PITPNA-AS1 level was downregulated in ovarian cancer samples and cells. PITPNA-AS1 overexpression contributed to the accelerated ovarian cancer cell apoptosis and inhibited cell migration, proliferation, and epithelial-mesenchymal transition process. In addition, PITPNA-AS1 interacted with miR-223-3p to regulate RHOB. RHOB knockdown partially counteracted the repressive impact of PITPNA-AS1 on ovarian cancer cell activities. Conclusion: PITPNA-AS1 inhibited ovarian cancer cellular behaviors by targeting miR-223-3p and regulating RHOB. (Rev Invest Clin. 2024;76(2):103-15)
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@#Objective Though investigating the causes of untreated congenital heart disease among children aged 3–14 years in Panzhihua city, to provide the basis for formulating intervention measures in the next step. Methods A survey was conducted on the children aged 3 to 14 years in Panzhihua city from March 2015 to December 2017. The causes of untreated congenital heart disease were analyzed. Results Of 148 children with untreated congenital heart diseases, 82 were found to have congenital heart disease or heart murmur before screening. Among them, 59 parents (71.95%) thought that hospitalization was expensive; 42 parents (53.84%) thought that their children were asymptomatic and did not need treatment. Doctors suggested that 13 children (15.85%) be observed. Sixty-six patients of congenital heart disease were found for the first time in this screening, with an average age of 7.11±1.23 years. The patients in the rural population (n=44, 81.82%) were significantly more than the patients in the urban (n=12, 18.18%, P<0.01). Atrial septal defect ranked the first among the diseases, and 45 (68.18%) children did not regularly participate in child health care after birth. Conclusion Most families with untreated congenital heart disease in Panzhihua city think that the cost of treatment is high and there is no need for treatment. And most of them do not participate in child health care regularly. Atrial septal defect ranks first among the diseases. Free screening and treatment of congenital heart disease is of great significance in Panzhihua city.