Objective: To establish a "regular blood donor red blood cell gene database"(hereafter referred to as the "database") by applying molecular biology techniques for red blood cell antigens genotyping and utilizing information technology software, and to determine the significance and application value of this "database" in precise red blood cell transfusion. Methods: Fifteen antigens [C, c, E, e, M, N, S, s, Fy (a), Fy (b), Jk (a), Jk (b), Le (a), Le (b), P1] across six blood group systems (RHCE, MNS, FY, JK, Lewis and P1PK) were detected among 9 426 regular blood donors using the TaqMan-MGB method combined with an improved U-shaped microplate approach. With the assistance of information technology software, the "database" was integrated into the overall inventory management system of the blood supply chain. This enabled comprehensive management of regular blood donor and patient information, test results, specific antigen screening for regular blood donors, graded antigen matching between donors and patients, and rare blood type donor records. Results: The TaqMan-MGB method successfully detected paired antigens (C/c, E/e, M/N, S/s, Fy /Fy , Jk /Jk ) within a single reaction well using a standardized PCR amplification protocol. This method provided a reliable testing solution for clinical institutions and empowered blood collection and supply organizations with high-throughput screening capabilities. In the blood supply chain, genotyped red blood cells accounted for 13.2% (721/5 462 U) of the total inventory, with 95.34% (348/365) originating from donors who donated two units of blood. Moreover, the “database” fulfilled 94.06% (443/471 U) of compatible transfusion requirements from medical institutions and effectively managed rare blood type donors. Conclusion: The establishment of the "database" facilitated the transition of blood compatibility testing from traditional serological methods to molecular biology-based gold standard techniques, significantly advancing the implementation of precise transfusion strategies based on multi-antigen matching between donors and patients.

Patients with severe pneumonia caused by novel coronavirus infection are often complicated with acute respiratory distress syndrome (ARDS), which has a high mortality. ARDS is characterized by diffuse alveolar damage, pulmonary edema, and hypoxemia. Mitochondria are prone to morphological and functional abnormalities under hypoxia and viral infection, which can lead to cell apoptosis and damage, severely impacting the disease progression. Mitochondria maintain homeostasis through fission and fusion. In ARDS, hypoxia leads to the phosphorylation of dynamin-related protein 1 (Drp1), triggering excessive mitochondrial fission and damaging the alveolar epithelial barrier. Animal experiments have shown that inhibiting this process can alleviate lung injury, providing a potential direction for treatment. The pathology of novel coronavirus infection-related ARDS is similar to that of typical ARDS but more severe. Viral infection and hypoxia disrupt the mitochondrial balance, causing fission and autophagy abnormalities, promoting oxidative stress and mitochondrial DNA (mtDNA) release, activating inflammasomes, inducing the expression of hypoxia-inducible factor-1α (HIF-1α), exacerbating viral infection, inflammation, and coagulation reactions, and resulting in multiple organ damage. Mechanical ventilation and glucocorticoids are commonly used in the treatment of novel coronavirus infection-related ARDS. Mechanical ventilation is likely to cause lung and diaphragm injuries and changes in mitochondrial dynamics, while the lung protective ventilation strategy can reduce the adverse effects. Glucocorticoids can regulate mitochondrial function and immune response and improve the patient's condition through multiple pathways. The mitochondrial dynamics imbalance in novel coronavirus infection-related ARDS is caused by hypoxia and viral proteins, leading to lung and multiple organ injuries. To clarify the pathophysiological mechanism of mitochondrial dynamics imbalance in novel coronavirus infection-related ARDS and explore effective strategies for regulating mitochondrial dynamics balance to treat this disease, so as to provide new treatment targets and methods for patients with novel coronavirus infection-related ARDS. The existing treatments have limitations. Future research needs to deeply study the mechanism of mitochondrial dysfunction, develop new therapies and regulatory strategies, and improve the treatment effect.
Humans ; Respiratory Distress Syndrome/etiology* ; COVID-19 ; Mitochondrial Dynamics ; Mitochondria/metabolism* ; DNA, Mitochondrial ; Hypoxia-Inducible Factor 1, alpha Subunit/metabolism* ; Dynamins ; SARS-CoV-2

Objective:To investigate the efficacy and safety of acute stent implantation during endovascular treatment for patients with emergent large vessel occlusion due to intracranial atherosclerotic stenosis.Methods:A retrospective analysis was carried out on 46 patients with emergent large vessel occlusion due to intracranial atherosclerotic stenosis who received endovascular treatment at the Strategic Support Force Medical Center from January 2015 to August 2022. Twenty-seven patients underwent balloon angioplasty alone and 19 patients underwent acute stent implantation. The baseline characteristics, modified thrombolysis in cerebral infarction (mTICI) score of the responsible vessels, modified Rankin scale (mRS) score 90 days after operation, incidence of symptomatic intracranial hemorrhage and mortality of the two groups were evaluated.Results:The proportion of effective recanalization of the offending vessels (mTICI≥2b) in the acute stenting group was slightly higher than that in the balloon angioplasty group (16/19 vs. 81.5%), but the difference was not statistically significant ( P>0.05). Besides, there was no significant difference in the median of mRS between the acute stenting group [3.0(0, 4.0)] and the balloon angioplasty group [4.0(1.0, 5.0)] 90 days after operation ( P>0.05). In terms of safety, the incidence of symptomatic intracranial hemorrhage and mortality were comparable between the two groups ( P>0.05). Conclusions:The effect of acute stent implantation during endovascular treatment for patients with emergent large vessel occlusion due to intracranial atherosclerotic stenosis is not inferior to that of balloon angioplasty, and it does not increase the risk of intracranial bleeding complications.

Driven by multiple factors such as policy incentives,enhanced economic capacity of residents,aging popula-tion,and medical system reform,China's rehabilitation industry has been in a rapid development stage where opportunities and challenges coexist.Various rehabilitation hospitals urgently need new development thinking on how to seize the new opportunities for the development of rehabilitation medicine,give full play to the benefits of high-quality rehabilitation medical resources,and deal with the development of rehabilitation institutions under the new situation.Taking the tertiary rehabilitation hospital where the authors work as an example,this paper deeply analyzes the practical difficulties and challenges faced by the development of reha-bilitation hospital under the new circumstance,further explores the construction of a new working mode based on people-oriented and medical-rehabilitation integration.It also briefly summarizes the beneficial experiences and practices in the reform of rehabili-tation service models,and elaborates on the periodic achievement,so as to provide a meaningful reference for the majority of re-habilitation hospitals to plan and practice high-quality development and reform.

The purpose of this paper is to systematically summarize the gene polymorphisms associated with osteoporosis(OP)susceptibility in Zhuang ethnic group in Guangxi.These genes mainly encode vitamin D receptor,estrogen receptor,calcitonin receptor,and adiponectin.The genotype and allele distribution frequency were compared between Zhuang ethnic group and other ethnic groups,which can clarify the existing genes and the potential gene polymorphism associated with OP in Zhuang ethnic group.The findings provide a representative solution for the subsequent research on the genes associated with OP susceptibility in ethnic minorities.

Objective:To explore the molecular mechanism of Danggui Niantong Decoction in the treatment of gouty arthritis (GA) based on network pharmacology and molecular docking.Methods:By selecting for the active components and targets of Danggui Niantong Decoction with TCMSP, and retrieving the GeneCards, OMIM, PharmGKB and DrugBank databases to obtain GA related targets. The potential targets of Danggui Niantong Decoction in the treatment of GA were obtained by the intersection of mappings. The regulation network of Chinese medicine compound and protein-protein interaction network of Danggui Niantong Decoction were constructed by Cytoscape software, and the targets of Danggui Niantong Decoction in the treatment of GA were analyzed by GO and KEGG enrichment by David Database. Finally, molecular docking was performed by using Autodock software.Results:There are 198 active components that could treat GA in Danggui Niantong Decoction. The key active components are Quercetin and Kaempferol. There are 46 key targets, the core targets are NFE2L2, HMOX1, PPARA, PTGS2, IL1β, CXCL8. GO enrichment suggests that the key genes are primarily involved in many biological processes such as Inflammatory response regulation, response to oxidative stress, Fatty acid metabolism process, steroid metabolism, lipopolysaccharide response and reactive oxygen species metabolism. KEGG pathway indicates that Danggui Niantong Decoction mainly acted on IL-17 signal pathway, HIF-1 signal pathway, TNF signal pathway and AGE-RAGE signal pathway. Molecular docking shows that the active components of Danggui Niantong Decoction and action target of GA can combine toghether with high efficiency, and the structure is stable.Conclusion:Danggui Niantong Decoction has multi-component, multi pathway and multi-protein characteristics. Danggui Niantong Decoction can treat GA by regulating immune inflammatory reaction and oxidative stress reaction.

Objective:To compare the efficacy of medial patellofemoral ligament (MPFL) reconstruction using single half tunnel, double half curved tunnel and suture anchor fixation in the treatment of patellar dislocation.Methods:A retrospective cohort study was used to analyze the clinical data of 58 patients with patellar dislocation treated in Second Hospital of Lanzhou University from June 2018 to February 2021, including 22 males and 36 females, aged 12-34 years [(19.6±5.5)years]. MPFL reconstruction was performed arthroscopically using single half tunnel fixation in 20 patients (single half tunnel group), double half curved tunnel fixation in 18 (double half curved tunnel group) and suture anchor fixation in 20 (suture anchor group). The Lysholm score, International Knee Documentation Committee (IKDC) score and Tegner activity score were compared among groups before operation, at 3 months after operation and at the last follow-up. The knee range of motion was compared among the three groups at 3 months after operation and at the last follow-up. The postoperative complications of the three groups were observed at the last follow-up.Results:All patients were followed up for 9-39 months [(26.5±9.1)months]. In single half tunnel group, double half curved tunnel group and suture anchor group, the Lysholm score was (78.4±12.0)points, (88.7±7.5)points and (81.1±9.8)points at 3 months after operation, and (80.4±14.2)points, (90.9±9.0)points and (83.3±9.1)points at the last follow-up. The postoperative Lysholm score in all groups was significantly increased from that preoperatively (all P<0.01). The Lysholm score in double half curved tunnel group was significantly higher than that in other two groups at 3 months after operation and at last follow-up (all P<0.05), but there was no significant difference between other groups (all P>0.05). In single half tunnel group, double half curved tunnel group and suture anchor group, the IKDC score was (76.7±12.2)points, (78.4±8.9)points and (81.0±8.1)points at 3 months after operation, and (77.6±15.8)points, (83.2±7.8)points and (82.4±12.4)points at the last follow-up. The postoperative IKDC score in all groups was significantly increased from that preoperatively (all P<0.01), but there was no significant difference among the three groups (all P>0.05). In single half tunnel group, double half curved tunnel group and suture anchor group, the Tegner score was (4.0±1.2)points, (5.4±1.7)points and (5.3±1.7)points at 3 months after operation, and (4.1±1.4)points, (5.8±1.8)points and (5.3±2.2)points at the last follow-up. The postoperative Tegner score in all groups was significantly improved from that preoperatively (all P<0.01). The Tegner score in single half tunnel group was significantly lower than that in other two groups at 3 months after operation and at last follow-up (all P<0.05), but there was no significant difference between other groups (all P>0.05). In single half tunnel group, double half curved tunnel group and suture anchor group, the knee range of motion was (122.3±6.4)°, (121.7±7.1)° and (123.3±5.7)° at the last follow-up, which were significantly increased from (117.3±8.0)°, (115.3±7.9)° and (116.8±8.3)° at 3 months after operation (all P<0.05), with no significant difference among the three groups (all P>0.05). The postoperative complication rate was 10.0% (2/20) in single half tunnel group, 5.6% (1/18) in double half curved tunnel group, and 25.0% (5/20) in suture anchor group ( P>0.05). Conclusions:For patellar dislocation, MPFL reconstruction using single half tunnel, double half curve tunnel and suture anchor fixation have achieved satisfactory improvement of knee range of motion, but knee functional recovery is much better after double half curved tunnel fixation.

In December, the outbreak of a novel coronavirus (2019-nCoV) in Wuhan, China, has attracted extensive global attention. On January 20, 2020, the Chinese health authorities upgraded the coronavirus to a Class B infectious disease in the Law of the People′s Republic of China on the Prevention and Treatment of Infectious Diseases, and considered it as Class A infectious diseases in disease control and prevention. On January 18, 2020, the 2019-nCoV nucleic acid detection test was listed as the diagnostic criteria in the "guidelines for diagnosis and treatment of pneumonia due to 2019-nCoV (Trial Version 2)" . Therefore, standardizing the operation process of the 2019-nCoV nucleic acid detection in clinical laboratories has become a top priority. It is of paramount importance to establish standard protocols for detection of the 2019-nCoV nucleic acids in clinical laboratories to improve the reliability of the results and ensure the biosafety of laboratory personnel.

In December, the outbreak of a novel coronavirus (2019-nCoV) in Wuhan, China, has attracted extensive global attention. On January 20, 2020,the Chinese health authorities upgraded the coronavirus to a Class B infectious disease in the Law of the People's Republic of China on the Prevention and Treatment of Infectious Diseases, and considered it as Class A infectious diseases in disease control and prevention. On January 22, 2020, the 2019-nCoV nucleic acid detection test was listed as the diagnostic criteria in the "guidelines for diagnosis and treatment of pneumonia due to 2019-nCoV (Trial Version 2)" . Therefore, standardizing the operation process of the 2019-nCoV nucleic acid detection in clinical laboratories has become a top priority. It is of paramount importance to establish standard protocols for detection of the 2019-nCoV nucleic acids in clinical laboratories to improve the reliability of the results and ensure the biosafety of laboratory personnel.

BACKGROUND: Prophylactic pinning of the uninvolved side after unilateral slipped capital femoral epiphysis (SCFE) is controversial. The alpha angle, a measurement of femoral head-neck aspherity, was proposed as a predictor of progression of contralateral SCFE with a treatment threshold of greater than 50.5°. The aim of this study was to evaluate its validity in our cohort of patients. METHODS: A retrospective review of a 10-year series of patients who presented with unilateral SCFE was conducted. Minimum follow-up duration to identify contralateral progression was 18 months. Age, sex, ethnicity, and endocrinopathies were noted. Alpha angle measurements of the unaffected hip were performed by two independent observers. The average values of measurements were used for analysis. Univariate and multivariate logistic regression analyses were performed to identify predictors of contralateral progression. A receiver operating characteristic (ROC) curve was generated. RESULTS: There were 43 patients with unilateral SCFE. Seven patients (16.3%) developed contralateral SCFE. There were 31 males (72.1%) and 12 females (27.9%). The mean duration from index surgery to contralateral fixation was 43.9 weeks (range, 16.2 to 77 weeks). The mean alpha angle was significantly higher in the patients with contralateral progression (mean, 50.7°; standard deviation [SD], 5.4°; range, 43.8° to 58.5°) than in the patients without progression (mean, 43.0°; SD, 4.2°; range, 33.0° to 52.5°; p < 0.001). The alpha angle was also identified as a statistically significant predictor of contralateral progression on multivariate analysis (p = 0.02). The intraclass correlation coefficient for interobserver reliability was moderately strong at 0.76 (95% confidence interval, 0.55 to 0.87). The area under the ROC curve was 0.88. The treatment threshold of 50.5° had a sensitivity of 0.43, specificity of 0.94, and number needed to treat (NNT) of 2.7. The ideal treatment threshold derived from the ROC curve was 49.0°, which had a sensitivity of 0.71, specificity of 0.89, and an NNT of 1.7. CONCLUSIONS: Alpha angle is a potential predictor of contralateral hip involvement in children with SCFE who may benefit from prophylactic hip fixation. Results from our series suggest a treatment threshold be 49.0°. However, given the limited sample size and moderately strong interobserver reliability, larger studies are needed to validate our findings.
Asian Continental Ancestry Group ; Child ; Cohort Studies ; Female ; Follow-Up Studies ; Hip ; Humans ; Logistic Models ; Male ; Multivariate Analysis ; Retrospective Studies ; ROC Curve ; Sample Size ; Sensitivity and Specificity ; Slipped Capital Femoral Epiphyses