Chinese Medical Association guideline for clinical diagnosis and treatment of lung cancer (2022 edition) has been published this year. The 2022 edition has been updated in the aspects of lung cancer screening, pathology, standards of thoracic surgery, treatment of metastatic lung cancer. In this study, we tried to introduce those updated aspects in the guideline of 2022 edition.
Objective To review the role of the mechanosensitive ion channel Piezo1 in osteoarthritis (OA) pathogenesis and summarize recent advances in its clinical transformation as a potential therapeutic target. Methods The recent domestic and international research literature was reviewed. Recent studies on Piezo1 in chondrocyte injury, inflammation, extracellular matrix degradation, and osteophyte formation were analyzed, along with Piezo1-targeted inhibitors, activators, and modulators. Results Piezo1 senses abnormal mechanical stress and mediates Ca2+ influx, activating PI3K/AKT/mTOR and MAPK/ERK signaling pathways, thereby promoting chondrocyte apoptosis, impaired autophagy, and matrix degradation. Preclinical studies suggest that GsMTx4, Piezo1-siRNA, Dooku1, and artemisinin may confer chondroprotective effects, but their specificity, stability, delivery efficiency, and safety require further verification. Conclusion Piezo1 is a critical link between mechanical stress and OA progression, representing a potential therapeutic target. Future research should focus on elucidating mechanisms, developing highly specific modulators and targeted delivery systems, and conducting rigorous preclinical and clinical studies to promote clinical transformation.
Objective To evaluate the effectiveness and safety of minimally invasive treatment for bilateral tibial plateau fractures using the double reverse traction reducer. Methods The clinical data of 4 patients with bilateral tibial plateau fractures who met the selection criteria and treated between January 2016 and April 2024 were retrospectively analyzed. The cohort included 3 males and 1 female, aged 30-65 years (mean, 52.5 years). Injury mechanisms comprised traffic accidents (2 cases) and falls (2 cases). According to the Schatzker classification, 2 limbs were type Ⅱ and 6 were type Ⅵ. The time from injury to surgery ranged from 5 to 9 days (mean, 7 days). All patients underwent minimally invasive reduction using the double reverse traction reducer. Surgical duration, intraoperative blood loss, and hospitalization time were recorded. Functional outcomes were assessed at last follow-up using the Hospital for Special Surgery (HSS) knee score and range of motion (ROM), while fracture reduction quality was evaluated using the Rasmussen radiological score. Results All 4 patients successfully completed the procedure without conversion to open reduction. The total mean operation time was 80.25 minutes (range, 73-86 minutes), with a mean total intraoperative blood loss of 132.5 mL (range, 100-150 mL). The mean hospitalization time was 13.5 days (range, 11-16 days). All incisions healed primarily without neurovascular complications. X-ray film at 1 day after operation confirmed satisfactory reduction and articular surface alignment. Follow-up time ranged from 12 to 26 months (mean, 17.0 months). Fractures achieved clinical union at an average of 13 weeks (range, 12-16 weeks). No complication, such as deep vein thrombosis, joint stiffness, post-traumatic arthritis, or implant failure, was observed. At last follow-up, the mean HSS score was 92.9 (range, 90-97), mean knee ROM was 128.1° (range, 115°-135°), and mean Rasmussen radiological score was 16.4 (range, 15-19), with 2 limbs rated as excellent and 6 as good. Conclusion The double reverse traction reducer facilitates minimally invasive treatment of bilateral tibial plateau fractures with advantages including minimal trauma, shorter surgical duration, precise reduction, and fewer complications, effectively promoting fracture healing and functional recovery of the knee joint.