Digital medical insurance governance， as an important component of digital transformation， improves the efficiency of medical insurance services while facing complex ethical challenges. Taking stakeholder theory as the analytical framework， this paper explored the generative mechanisms， manifestations， and countermeasures of ethical issues in digital medical insurance governance. This study uncovered that accelerated technological iteration and lagging ethical and legal norms， as well as interest conflicts among multiple participants in governance， constituted the major causes of ethical issues. These issues specifically manifested as data privacy leakage， unfair algorithmic decision-making， widening digital divide， ambiguous accountability， and other aspects. To address these issues， this paper put forward systematic countermeasures， such as establishing a dynamic ethical and legal regulatory system， balancing the demands of stakeholders， strengthening technological ethical governance， narrowing the digital divide， and enhancing accountability mechanisms. Through the implementation of multi-dimensional governance strategies， it aimed to balance technological innovation and ethical constraints， advance the inclusiveness， fairness， and sustainable development of digital medical insurance， and provide theoretical reference and practical references for improving China’s digital medical insurance governance system.

Objective To explore the role of miR-429 in synovial mesenchymal stem cell-derived exosomes(SMSC-Exos)in repairing cartilage damage in temporomandibular joint osteoarthritis(TMJ OA)by extracting SMSC-Exos from human synovial tissue and screening differentially expressed microRNA(miRNA)through transcriptome sequencing.Methods Human synovial tissues were obtained from 6 patients who underwent surgery at the First Medical Center of the Chinese PLA General Hospital from June to December 2023,including 3 patients with osteoarthritis(OA group)and 3 control patients(control group),all of whom were male.SMSC-Exos were extracted from the synovial tissues for miRNA sequencing and differential expression analysis.Further,Gene Ontology(GO)and Kyoto Encyclopedia of Genes and Genomes(KEGG)enrichment analyses were performed on the target genes of differentially expressed miRNA to identify key functional miRNA and construct miRNA-target gene regulatory networks and protein-protein interaction(PPI)networks of target genes.An in vitro model of rabbit condylar cartilage cell inflammatory microenvironment induced by interleukin-1β(IL-1β)was established,with the control group cultured in DMEM/F12 basic medium and the inflammation-induced group cultured in DMEM/F12 basic medium containing 10 ng/ml IL-1β.RT-qPCR was used to detect the effects of overexpressed target miRNA on the mRNA expression levels of cartilage phenotype factors such as type Ⅱ collagen α1 chain(Col2a1),aggrecan(Acan),as well as inflammatory factors including a disintegrin and metalloproteinase with thrombospondin motifs 5(Adamts5)and cyclooxygenase-2(Cox-2).Results(1)SMSC-Exos were successfully isolated,cultured,and identified.(2)miRNA sequencing of SMSC-Exos from OA and control groups revealed 16 differentially expressed miRNAs(|log2FC|>2,P<0.05).Compared with control group,7 miRNAs were up-regulated and 9 were down-regulated in OA group.GO and KEGG analysis indicated that the target genes of miR-429 were mainly involved in development process,anatomical structure development,system development,cell development and differentiation,and were enriched in inflammation-related pathways such as mitogen-activated protein kinase(MAPK)and phosphatidylinositol 3-kinase-protein kinase B(PI3K-Akt).(3)Functional validation of miR-429 in the rabbit condylar cartilage cell inflammatory model showed that overexpression of miR-429 increased the mRNA expression levels of Col2a1 and Acan(P<0.05)and decreased the mRNA expression levels of Adamts5 and Cox-2(P<0.05)in the inflammation-induced group.Conclusions miRNA sequencing of SMSC-Exos isolated and identified from human synovial tissues reveals a specific miRNA expression profile in OA patients,with miR-429 significantly down-regulated.Functional validation demonstrates that overexpression of miR-429 has reparative and anti-inflammatory effects on condylar cartilage cells in an inflammatory microenvironment.

Hepatocellular carcinoma (HCC) expresses abundant glycolytic enzymes and displays comprehensive glucose metabolism reprogramming. Aldolase A (ALDOA) plays a prominent role in glycolysis; however, little is known about its role in HCC development. In the present study, we aim to explore how ALDOA is involved in HCC proliferation. HCC proliferation was markedly suppressed both in vitro and in vivo following ALDOA knockout, which is consistent with ALDOA overexpression encouraging HCC proliferation. Mechanistically, ALDOA knockout partially limits the glycolytic flux in HCC cells. Meanwhile, ALDOA translocated to nuclei and directly interacted with c-Jun to facilitate its Thr93 phosphorylation by P21-activated protein kinase; ALDOA knockout markedly diminished c-Jun Thr93 phosphorylation and then dampened c-Jun transcription function. A crucial site Y364 mutation in ALDOA disrupted its interaction with c-Jun, and Y364S ALDOA expression failed to rescue cell proliferation in ALDOA deletion cells. In HCC patients, the expression level of ALDOA was correlated with the phosphorylation level of c-Jun (Thr93) and poor prognosis. Remarkably, hepatic ALDOA was significantly upregulated in the promotion and progression stages of diethylnitrosamine-induced HCC models, and the knockdown of A ldoa strikingly decreased HCC development in vivo. Our study demonstrated that ALDOA is a vital driver for HCC development by activating c-Jun-mediated oncogene transcription, opening additional avenues for anti-cancer therapies.

OBJECTIVE: To explore and quantify the association of hot night exposure during the sperm development period (0-90 lag days) with semen quality. METHODS: A total of 6,640 male sperm donors from 6 human sperm banks in China during 2014-2020 were recruited in this multicenter study. Two indices (i.e., hot night excess [HNE] and hot night duration [HND]) were used to estimate the heat intensity and duration during nighttime. Linear mixed models were used to examine the association between hot nights and semen quality parameters. RESULTS: The exposure-response relationship revealed that HNE and HND during 0-90 days before semen collection had a significantly inverse association with sperm motility. Specifically, a 1 °C increase in HNE was associated with decreased sperm progressive motility of 0.0090 (95% confidence interval [ CI]: -0.0147, -0.0033) and decreased total motility of 0.0094 (95% CI: -0.0160, -0.0029). HND was significantly associated with reduced sperm progressive motility and total motility of 0.0021 (95% CI: -0.0040, -0.0003) and 0.0023 (95% CI: -0.0043, -0.0002), respectively. Consistent results were observed at different temperature thresholds on hot nights. CONCLUSION Our findings highlight the need to mitigate nocturnal heat exposure during spermatogenesis to maintain optimal semen quality.
Humans ; Male ; Semen Analysis ; Adult ; Sperm Motility ; Hot Temperature/adverse effects* ; China ; Middle Aged ; Spermatozoa/physiology* ; Young Adult

Objective To investigate the value of the novel lymphatic contrast-enhanced ultrasound(LCEUS)and conventional venous contrast-enhanced ultrasound(VCEUS)in the differential diagnosis of benign and malignant cervical lymph nodes in patients with thyroid cancer. Methods Patients with suspected thyroid cancer underwent conventional ultrasound,VCEUS,and LCEUS examinations of cervical lymph nodes before biopsy.The diagnostic abilities of conventional ultrasound,VCEUS,and LCEUS were compared with pathological results as the golden standard. Results Forty-four patients with 52 lymph nodes were included in the final data.Thirty-eight metastatic lymph nodes were confirmed by pathological results,and 14 were benign.The diagnostic sensitivity,specificity,and accuracy were 97.37%,71.43%,and 90.38% for LCEUS,92.11%,35.71%,and 76.92% for VCEUS,and 94.74%,21.43%,and 75.00% for conventional ultrasound,respectively.The area under the curve of LCEUS analyzed by the receiver operating characteristic curve was greater than that of VCEUS(P=0.020)and conventional ultrasound(P<0.001). Conclusion LCEUS could significantly improve the differential diagnosis of cervical lymph node metastasis in the patients with thyroid cancer,providing a basis for precise clinical treatment.
Humans ; Thyroid Neoplasms/diagnostic imaging* ; Lymphatic Metastasis/diagnostic imaging* ; Diagnosis, Differential ; Female ; Male ; Middle Aged ; Ultrasonography ; Adult ; Lymph Nodes/pathology* ; Contrast Media ; Neck ; Aged ; Young Adult ; Adolescent ; Sensitivity and Specificity

Thoracolumbar spine fracture often leads to severe pain, functional impairments, and neurological deficits, for which open reduction and internal fixation can effectively restore the spinal structural stability. Open decompression and reduction with internal fixation can help relieve spinal cord compression and improve spinal function in cases of concomitant cord injury. Although spinal stability can be restored through surgery, patients often face chronic pain and functional impairments postoperatively. A postoperative rehabilitation program is critical in optimizing therapeutic outcomes, reducing complications, and minimizing the risk of secondary injuries. However, current rehabilitation methods, such as physical therapy, functional training, and pain management, are confronted with problems in clinical practice, including significant variation in efficacy, poor patient adherence, and prolonged rehabilitation period. There is an urgent need for a unified rehabilitation strategy to address these problems. To this end, the Spinal Trauma Group of the Orthopedic Physicians Branch of the Chinese Medical Association and the Spine Health Professional Committee of the Chinese Human Health Technology Promotion Association organized experts from relevant fields to formulate Evidence-based guidelines for rehabilitation treatment after internal fixation of thoracolumbar spine fracture in adults ( version 2025) by integrating evidences from clinical researches and advanced rehabilitation concepts at home and abroad. A total number of 14 recommendations concerning the rehabilitation treatment with multimodal analgesia, psychological intervention, deep vein thrombosis prevention, core muscle and extremity exercise, appropriate use of braces, early weight-bearing, device-aided rehabilitation exercise, neuroregulatory therapy, rehabilitation team were put forward, aiming to standardize the post-operative rehabilitation process following internal fixation, promote the functional recovery, and enhance patients′ quality of life.

Objective:To discuss the correlation of pathologic findings after radical prostatectomy and preoperative 18F-PSMA-1007 PET/CT parameters with the prognosis of patients with prostate cancer. Methods:A retrospective case series study was conducted. The clinicopathological data of 48 patients with prostate cancer who underwent radical prostatectomy in Shanxi Province Cancer Hospital between January 2019 and August 2023 were retrospectively analyzed. All patients underwent 18F-PSMA-1007 PET/CT imaging before surgery. The age, the preoperative serum total prostate-specific antigen (tPSA), prostate-specific antigen density (PSAD), prostate volume, tumor diameter, TNM staging, the pathologic data after radical prostatectomy [International Society of Urological Pathology (ISUP) grade, resection margin status, nerve invasion], and preoperative maximum standard uptake value (SUV max) were collected. The receiver operating characteristic (ROC) curves were used to evaluate the efficacy of PET/CT parameter SUV max in predicting tumor recurrence after prostate cancer surgery. The recurrence-free survival (RFS) was analyzed by using the Kaplan-Meier method and log-rank test was performed. Cox proportional risk model was used to analyze the factors influencing RFS after radical prostatectomy. Results:All 48 patients were acinar adenocarcinoma. The median level of the patients' serum tPSA was 19.16 (10.50, 30.99) ng/ml; the median prostate volume was 36.20 (31.83, 45.48) ml; the median tumor diameter was 2.80 (1.60, 4.00) cm; the median PSAD was 0.48 (0.31,1.02) ng·ml -1·cm -3. The primary SUV max of prostate cancer was 13.61 (8.10, 20.20) . Of the 48 patients, 1 case died of heart disease and 1 case died of COVID-19 within 3 to 6 months after surgery, and the rest 46 patients were analyzed for prognosis. Among 46 cases, 26 were in the ISUP low-grade group and 20 were in the high-grade group; 17 were positive and 29 were negative for nerve invasion; 7 were positive and 39 were negative for margin status. The median follow-up time was 18.5 (8-64) months. There were 30 recurrence-free patients and 16 recurrent patients by the follow-up in April 2024. The median RFS time was 15 months; and there were statistically significant differences in RSF among the ISUP high-grade and low-grade groups, preoperative SUV max ≥ 16.77 and < 16.77 groups, positive and negative resection margin groups (all P < 0.01). SUV max was positively correlated with ISUP pathological grade and tPSA level ( r value was 0.634, 0.584, respectively; both P < 0.01). The differences in preoperative serum tPSA level, PSAD, tumor diameter, and SUV max were statistically significant between the ISUP low-grade group and the high-grade group (all P < 0.01); the differences in preoperative serum tPSA, PSAD, and tumor diameter were statistically significant between the nerve invasion positive group and nerve invasion negative group (all P < 0.01); the differences in preoperative serum tPSA, PSAD, tumor diameter, and SUV max between patients with positive resection margins or not were not statistically significant (all P > 0.05). Multivariate Cox regression analysis showed that the tumor resection margin status (negativity vs. positivity: HR = 7.82,95% CI: 1.97-31.07, P < 0.01), ISUP pathological grade (low grade vs. high grade: HR = 4.34,95% CI:1.21-15.62, P < 0.05), and the preoperative SUV max (<16.77 vs. ≥ 16.77: HR = 4.18, 95% CI:1.36-12.85 , P < 0.05) were independent influencing factors for RFS in patients with prostate cancer after radical prostatectomy. Conclusions:Pathological grading after radical prostatectomy and the preoperative 18F-PSMA-1007 PET/CT parameters are associated with the prognosis of patients with prostate cancer.

Objective:To evaluate the clinical outcomesof primary reverse total shoulder arthroplasty (RTSA) and revision procedure with RTSA after treatment failure of complex proximal humeral fractures in the elderly.Methods:A retrospective analysis was conductedon 24 elderly patients with Neer three- or four-part proximal humeral fractures who underwent RTSA revision after treatment failure (RTSA revision group) from January 2017 to June 2022. There were 7 males and 17 females included, with a mean age of 78.23±5.78 years (range, 67-86 years). Forty-eight patients who underwent primary RTSA (primary RTSA group) during the same time period were selected by propensity score matchingin a 1∶2 ratio as controls, based on age, dominanthand, etiology, Neer typing, glenohumeral joint dislocation, rotator cuff integrity, and osteoporosis T-score. The primary RTSA group included 12 males and 36 females, with a mean age of 76.38±6.15 years (range, 65-87 years). Clinical indicators including demographic characteristics, healing rate of the greater tuberosity, visual analogue score (VAS), Constant-Murley score, American Shoulder and Elbow Surgeons (ASES), shoulder range of motion (ROM), patient satisfaction, and complication rate were collected and analyzed.Results:The mean follow-up duration was 40(32, 60) months (range, 25-72 months) in the primary RTSA group and 38(30, 61) months (range, 24-68 months) in RTSA revision group. There was no significant difference (χ 2=5.058, P=0.168) in the healing rate of the greater tuberosity between the primary RTSA group (41/48, 85.4%) and the RTSA revision group (15/24, 62.5%). Compared with preoperative status, the ROM of anterior elevation, abduction supination, external rotation, VAS score, Constant-Murley score, and ASES score were significantly improved at the last follow-up (all P<0.05) in the RTSA revision group. The anterior elevation (123.74°± 16.57°), abduction supination (113.73°±16.42°), and external rotation (36.45°±10.36°) in the primary RTSA group were superior to those in the RTSA revision group (109.43°±18.75°, 98.64°±15.47°, 30.47°±10.64°, respectively), the difference was statistically significant ( P<0.05). No statistical difference of ROM of internal rotation between the two groups was found (χ 2=4.034, P=0.133). At the last follow-up, the Constant-Murley scores (75.47±11.66) and ASES scores (73.58±15.72) of the primary RTSA group were higher than those in the RTSA revision group (60.43±10.24 and 63.28±18.77, respectively), and the differences were statistically significant ( P<0.05). In terms of VAS (1.66±0.93 vs. 2.02±1.15) and patient satisfaction [83%(40/48) vs. 88%(21/24)], no statistical difference was identified ( P>0.05). The complication rate were 10.4% (5/48) in the primary RTSA group and 20.8% (5/24) in the RTSA revision group (χ 2=1.452, P=0.285), with no serious complications requiring revision surgery in either group. Conclusions:For elderly patients with proximal humeral fractures after failed operation, RTSA revision might effectively improve the limb function and alleviatepain. However, compared with RTSA revision, primary RTSA demonstrated superiorearly clinical outcomes in shoulder ROM and functional recovery.

The aim of this updated guideline is to provide comprehensive recommendations for the management of gout in patients with common comorbidities, such as chronic kidney disease(CKD), cardiovascular disease(CVD), diabetes, osteoarthritis(OA), and gastrointestinal disorders. This guideline was developed by a multidisciplinary expert panel consisting of specialists in endocrinology, rheumatology, nephrology, cardiology, gastroenterology, and methodology. The development process adhered to standard methodologies, including PICO(population, intervention, comparator, and outcomes) question deconstruction, systematic literature review, the Grading of Recommendations Assessment, Development and Evaluation(GRADE) for evidence and recommendation evaluation, Delphi voting, and expert consensus. The guideline presents 26 evidence-based recommendations addressing 7 clinical questions for patients with hyperuricemia and gout in the context of comorbidities. Key recommendations include the maintenance of strict serum urate targets, particularly for patients with CKD stage≥3, chronic gouty arthritis, and OA, in order to prevent disease progression. In patients with CVD or diabetes, intra-articular triamcinolone is preferred over systemic glucocorticoids. Prioritized anti-inflammatory treatments for patients with CKD, gastrointestinal diseases and OA are recommended. The guideline also introduces emerging therapies, such as interleukin-1 inhibitors and selective urate transport inhibitors, as potential treatment options for refractory cases. The update offers a comprehensive, patient-centered approach to managing gout, particularly in individuals with associated comorbidities. Multidisciplinary collaboration and emerging new treatments and evidence ensure the optimization of the recommendations.

Objective To investigate the effect and potential mechanism of rat mesenchymal stem cells(MSC)on D-galactose-induced brain-tissue aging.Methods A rat brain-aging model was established by injecting D-galactose,and rats in the treatment group received MSC injections via the tail vein.Superoxide dismutase(SOD)activity and malondialdehyde(MDA)levels were assessed in rat brain tissue at the end of the experiment,and pathological changes in brain tissue were observed by hematoxylin-eosin(HE)staining.Expression levels of the inflammatory factors interleukin(IL)-1 and IL-6,the pathway proteins brain-derived neurotrophic factor(BDNF)-tropomyosin receptor kinase B(TrkB),the negative growth regulators p53 and p16,as well as vascular endothelial growth factor(VEGF)and basic fibroblast growth factor(bFGF)were observed by polymerase chain reaction(PCR)and Western Blot.Results Brain levels of SOD activity were significantly increased and MDA levels were significantly decreased in rats in the modle group compared with the treatment group(P＜0.05).The pathological state of the cerebral cortex and hippocampus were improved and the number of neurons and nucleus pulposus ratio in the brain were increased in the treatment group,as shown by HE staining.Expression levels of IL-1,IL-6,p53,and p16 were significantly decreased,while BDNF,TrkB,VEGF,and bFGF were significantly increased in the treatment group compared with the model group,as shown by PCR and Western Blot(P＜0.05).Conclusions These result suggest that MSCs potentially mitigate D-galactose-induced cerebral senescence by concurrently modulating the BDNF-TrkB axis to attenuate oxidative/inflammatory damage,while enhancing the secretion of vasculotrophic(VEGF)and neurotrophic(bFGF)factors for neuronal maintenance.