BACKGROUND:The osteogenic differentiation of mesenchymal stem cells is regulated by a variety of molecules.Long non-coding RNA(lncRNA)has attracted much attention because they can participate in regulating a variety of biological processes,but the regulatory role of lncRNA on osteogenic differentiation of mesenchymal stem cells has not been fully explored. OBJECTIVE:To explore the effect of lncRNA Gm16104 on osteogenic differentiation of C3H10T1/2 mesenchymal stem cells. METHODS:The C3H10T1/2 mesenchymal stem cells were induced into osteogenic differentiation by bone morphogenetic protein-2.Alkaline phosphatase staining was performed to identify the osteogenic differentiation of the cells 5 days after osteogenic induction.Expression levels of alkaline phosphatase and lncRNA Gm16104 were detected by qRT-PCR after 0,1,3,and 5 days of osteogenic differentiation.After transfection of the overexpression plasmid of pcDNA-Gm16104,the osteogenic differentiation was identified by alkaline phosphatase staining and qRT-PCR 4 days after osteogenic induction.The expression levels of osteogenesis-related signalling pathway proteins were detected by western blot assay. RESULTS AND CONCLUSION:(1)After 5 days of osteogenic induction,alkaline phosphatase activity was significantly increased.(2)Compared with 0 days,expression levels of the osteogenic marker gene alkaline phosphatase increased and expression levels of Gm16104 decreased after 1,3,and 5 days of osteogenic induction.(3)Transfection of C3H10T1/2 cells with pcDNA-Gm16104 plasmid significantly increased the expression level of Gm16104.(4)Overexpression of Gm16104 inhibited alkaline phosphatase activity,the expression levels of the osteogenic marker gene alkaline phosphatase and the osteogenesis-related transcription factor Osterix.(5)Overexpression of Gm16104 inhibited phosphorylated protein expression of PI3K and Akt.(6)The above results suggest that overexpression of Gm16104 may inhibit osteogenic differentiation of C3H10T1/2 mesenchymal stem cells through the PI3K/Akt signaling pathway.

Objective:To evaluate the report quality and study characteristics of randomized controlled trials (RCT) published in the Chinese Journal of Health Management.Methods:All studies published in the Chinese Journal of Health Management from January 2007 to July 2019 were retrieved via Wanfang data. Two researchers screened the articles strictly according to the inclusion and exclusion criteria independently. Based on the Consolidated Standards of Reporting Trials (CONSORT) statement 2010, the report quality and characteristics of the articles (including the type of participants, recruiting site, interventions, outcome measure, etc.) were extracted and summarized. Then the report quality, study characteristics were analysed among three periods based on the publishing date (2008—2011 , 2012—2015 , 2016—2019). Results:Titles, abstracts, and full text manuscripts were screened against inclusion criteria by two independent reviewers and 57 studies were included. There were 13/25 items of the CONSORT statement were fulfilled completely, the other 8/25 items were partly fulfilled, and the else 4/25 items were not met the standards in these studies. There was statistically significant difference in the description ratio of ‘randomization sequence generation’ (16.7% vs. 47.6% vs. 66.7%), foundation (25.0% vs. 33.3% vs. 75.0%) and informed consent (50.0% vs. 76.2% vs. 100.0%) during the three periods (all P<0.05). There was no statistically significant difference in the proportion of chronic diseases (58.3% vs. 85.7% vs. 66.7%), the description ratio of participant flow (41.7% vs. 33.3% vs. 75.0%) and baseline data (83.3% vs. 95.2% vs. 100.0%) in the studies from different periods, however, the description situation of participant flow and baseline data has been improved along the time. Conclusion:According to the CONSORT statement, it is found that the quality of research in health management still needs to be improved, especially in the concealment of randomization and trial registration.

Accurate classification of the acetabular injuries and appropriate treatment plan are great challenges for orthopedic surgeons because of the irregular anatomical structure of the acetabulum and aggregation of important vessels and nerves around it. Letournel-Judet classification system has been widely applied to classify acetabular fractures. However, there are several limitations, including incomplete inclusion of fracture types, difficulty in understanding and insufficient guidance for surgical treatment, etc. Serious complications such as traumatic arthritis are common due to wrong classification and diagnosis and improper selection of surgical strategy, which brings a heavy burden to the society and families. Three-column classification, based on anatomic characteristics, has advantages of containing more fracture types and being easy to understand, etc. To solve the problems existing in the diagnosis and treatment process based on Letournel-Judet classification, achieve accurate diagnosis and treatment of patients with acetabular fractures, and obtain satisfactory prognosis, the Orthopedic Trauma Emergency Center of Third Hospital of Hebei Medical University and the Trauma Orthopedic Branch of the Chinese Orthopedic Association organized experts from relevant fields to formulate the Expert consensus on the accurate diagnosis and treatment of acetabular fractures based on three-column classification ( version 2023) in terms of principles of evidence-based medicine. Based on the three-column classification, 15 recommendations were proposed, covering the diagnosis, treatment, complication prevention and management, etc, so as to provide reference for accurate diagnosis and treatment of acetabular fractures.