After continuous development and improvement, lung transplantation has become the preferred means to treat a variety of benign end-stage lung diseases. However, the field of lung transplantation still faces many challenges, including shortage of donor resources, preservation and maintenance of donor lungs, and postoperative complications. Lung tissue samples removed after lung transplantation are excellent clinical resources for the study of benign end-stage lung disease and perioperative complications of lung transplantation. However, at present, the collection, storage and utilization of tissue samples after lung transplantation are limited to a single study, and unified technical specifications have not been formed. Based on the construction plan of the biobank for lung transplantation in the First Affiliated Hospital of Xi'an Jiaotong University, this study reviewed the practical experience in the collection, storage and utilization of lung transplant tissue samples in the aspects of ethical review, staffing, collection process, storage method, quality control and efficient utilization, in order to provide references for lung transplant related research.

Objective To explore the causal relationship between family resilience and mental health in military personnel population.Methods A total of 204 military personnel were recruited from an army unit stationed in Western China with cluster convenience sampling.Family Resilience Scale(FRS)and Symptom Checklist 90(SCL-90)were used to survey them twice,in an interval of 4 months.Amos 26.0 was applied to construct a cross-lag model and analyze the data.Results After controlling mental symptoms from the first survey,family resilience in the first measure significantly predicted mental symptoms in the second measure(β=-0.14,P＜0.05).After controlling for family resilience from the first survey,mental symptoms in the first measure significantly predicted family resilience in the second measure(β=-0.13,P＜0.05).Conclusion The relationship between family resilience and mental health is mutually causal in military personnel,and one predicts the other one.Our findings highlight the key dimensions of the relationship between the two.

AIM:To investigate the effect of Bushen formulae(BHF)on bone metabolism and its possible mechanism in ovariectomized rats with high salt intake.METHODS:According to the random number table method,80 SPF-grade Sprague-Dawley rats were divided into sham group,ovariectomy(OVX)group,medium-high-salt diet(MSD)group,high-salt diet(HSD)group,BHF group,BHF with normal saline(BHF+NS)group,BHF+MSD group,and BHF+ HSD group,with 10 rats in each group.After modeling,different diets and BHF formula interventions were administered,and the concentrations of sodium chloride added to MSD group and HSD group were 2%(w/w)and 8%(w/w),respective-ly.The dose of BHF was 7.8 g·kg-1·d-1,once a day,and the treatment lasted for 12 weeks.Bone density,bone microar-chitecture,bone parameters,bone metabolism biomarkers,bone histopathological changes,the expression of epithelial sodium channel α(ENaCα),Na-Cl cotransporter(NCC),and voltage-gated chloride channel 3(ClC-3)proteins in bone tissue were detected in each group.RESULTS:Compared with sham group,the rats in OVX group had reduced bone density and destroyed bone microstructure.Compared with OVX group,the bone microstructure in MSD and HSD groups was more significantly damaged,while the levels of bone formation markers,bone glycoprotein(BGP)and type Ⅰ procolla-gen N-terminal peptide(PINP),were significantly increased in HSD group(P<0.05).Moreover,the levels of bone re-sorption markers,such as amino-terminal cross-linked telopeptides of type Ⅰ collagen(NTX),carboxy-terminal cross-linked telopeptides of type Ⅰ collagen(CTX)and tartrate-resistant acid phosphatase(TRACP),were significantly in-creased(P<0.05),indicating that bone metabolism was in high-conversion state.High-salt diet accelerated the structural destruction of bone trabeculae,and Western blot results showed that high-salt diet caused decreases in the protein expres-sion levels of ENaCα and ClC-3 and an increase in the protein expression level of NCC in femoral tissues(P<0.05).After BHF intervention,the expression of relevant ion channels caused by high salt could be regulated to different degrees.CONCLUSION:Bushen formulae could differentially regulate the expression of relevant ion channels ENaCα,ClC-3,and NCC induced by high salt to different degrees,which has certain ameliorative and therapeutic effects on the imbalance of bone metabolism.

There are different views on the theory of “spleen governs time”， which is still a hot spot in the study of Zangxiang （藏象） theory. Based on Zangxiang time-space view， it is found that the thinking mode of the spleen governing time theory follows space-time logic. It is believed that the different time views of the spleen governing time are all formed based on the space view that the spleen belongs to earth and resides in the center， and the zang time theory is developed with the unified time and space logic. Guided by Zangxiang time-space view， the origin of the spleen belonging to earth and residing in the center is traced， and the theoretical connotation and its clinical application of spleen governing time under different time-space logic are explored with reference to the four season and five zang theory， five season and five zang theory， six season and six zang theory， and eight season and eight zang theory.

Chaihu Jia Longgu Muli Decoction can effectively improve the sleep quality of perimenopausal insomnia patients, reduce negative emotions, regulate the neuroendocrine system, improve the other perimenopausal symptoms, and has higher safety. Chaihu Jia Longgu Muli Decoction can play a role in perimenopausal insomnia by correcting hormone levels, regulating a variety of neurotransmitters and cytokines, regulating intestinal flora and other ways.

Objective As a signaling molecule,NO regulates key physiological processes and is closely related to periodontitis.To investigate the effect of flavonoid NO donor composite nanoparticles(G10@HAP/MSN@ZnO@COS)on osteogenic differentiation of periodontal ligament stem cells(PDLSCs)by regulating macrophage polarization.Methods The novel NO donor drug G10 was loaded on hydroxyapatite/mesoporous silicanant particles(HAP/MSN),filled with zinc oxide(ZnO),and then coated with chitosan(COS)to prepare composite nanoparticles(G10@HAP/MSN@ZnO@COS).The best concentration of G10@HAP/MSN@ZnO@COS was screened to promote cell proliferation by CCK-8 cell experiment.After the mouse mononuclear macrophages were stimulated by lipopo-lysaccharide,the mice were divided into four groups:Control group,G10 group,HAP/MSN@ZnO@COS group and G10@HAP/MSN@ZnO@COS group.Each group was cultured with fresh medium,5 μg/mL G10,5 μg/mL HAP/MSN@ZnO@COS and 5 μg/mL G10@HAP/MSN@ZnO@COS for 72 h respectively.ELISA and RT-qPCR were used to detect the expression of cytokines(TNF-α,IL-6,IL-1β,iNOS,IL-10)and mRNA expression in each group,and the phenotypic changes of M1/M2 were evaluated.The supernatant of each culture medium was used as conditioned medium to culture PDLSCs,and the osteogenic ability and cell miner-alization were evaluated by alkaline phosphatase activity test and alizarin red staining.Results CCK-8 experiment showed that G10@HAP/MSN@ZnO@COS of 5 μg/mL could significantly promote the proliferation of PDLSCs.The results of ELISA showed that compared with Control group,the expression of M1 type marker IL-1β,IL-6,TNF-α and iNOS in G10@HAP/MSN@ZnO@COS group was significantly decreased(P＜0.000 1),while the expression of M2 type marker IL-10 was significantly increased(P＜0.000 1).The results of RT-qPCR were consistent with those of ELISA,which showed that the expression of M1-related genes in G10@HAP/MSN@ZnO@COS group decreased significantly(P＜0.01).The results of alizarin red staining and alkaline phosphatase activity test showed that the number of mineralized nodules and alkaline phosphatase activity in G10@HAP/MSN@ZnO@COS-CM group were significantly higher than those in other groups(P＜0.000 1).Conclusion Composite nanoparticles(G10@HAP/MSN@ZnO@COS)can effectively inhibit the polarization of macrophages to M1 phenotype and promote it to M2 phenotypic polarization.The anti-inflammatory microenvironment regulated by G10@HAP/MSN@ZnO@COS can en-hance the osteogenic differentiation of PDLSCs.

Objective To investigate the predictive effect of antithrombin Ⅲ(AT-Ⅲ)combined with procalcitonin(PCT)on sepsis-associated acute kidney injury(SA-AKI).Methods A total of 96 patients with sepsis who met the inclusion criteria were in-cluded,all patients were divided into the AKI group(n=42)and non-AKI group(n=54),and the data between the two groups were compared.We used the receiver operating characteristic(ROC)curves to evaluate the predictive effect of antithrombin Ⅲ level,procalCI tonin level,and combination on SA-AKI.Multivariate Logistic regression analysis was used to study the influencing factors of SA-AKI.Results The proportion of PCT,CRP,fibrinogen,SOFA score,APACHE Ⅱ score,vasoactive drug use,and blood purification applica-tion in the AKI group was higher than that in the non-AKI group(P＜0.05),as well as the AT-Ⅲ,and platelet count were lower than those in the non-AKI group(P＜0.05).The area under the ROC curve for predicting SA-AKI in patients with sepsis was 0.876(95％CI:0.793-0.935,P＜0.01),the sensitivity was 78.6％,and the specificity was 88.9％.Multivariate Logistic regression anal-ysis showed that AT-Ⅲ(OR=0.907,95％CI:0.860-0.956)and PCT(OR=1.037,95％CI:1.002-1.074)were independent influencing factors for SA-AKI.Conclusion AT-Ⅲ combined with PCT could be used to predict SA-AKI and has good predictive ef-ficacy.

Aneurysmal subarachnoid hemorrhage(aSAH)is a common critical condition in neurosurgery,which is easily complicated by cerebral vasospasm and delayed cerebral ischemia,leading to a high morbidity and mortality rate.Currently,there is a lack of objective and specific medical methods for the early recognition of these two complications.The authors summarized the methods of early identification of cerebral vasospasm and delayed cerebral ischemia,which have attracted much attention,and relate them to current clinical practice with a view to providing references to early identification and intervention in high-risk patients,and thus to improving patients'neurological prognosis.

Objective:To explore our self-designed classification system of irreducible intertrochanteric fractures based on reduction stage and bone block position and to evaluate the reduction techniques guided by the classification system.Methods:A retrospective study was conducted to analyze the data of 115 patients with irreducible intertrochanteric fracture who had been admitted to Department of Orthopedics, Beijing Hospital from September 2014 to November 2022. There were 24 males and 91 females with a mean age of (80.9±11.0) years. The reduction for the fractures was divided into a diaphysis reduction stage (Phase Ⅰ) and a cortical reduction stage (Phase Ⅱ). Based on the relative positions of the intraoperative bone blocks, Phase Ⅰ was divided into an anterior and posterior interlocking type (Phase Ⅰa) and a distal bone block sinking displacement type (Phase Ⅰb) while Phase Ⅱ into a proximal lifting type (Phase Ⅱa), a posterior angulation type (Phase Ⅱb), a positive support type (Phase Ⅱc), and a negative support type (Phase Ⅱd). Depending on the difficulties encountered in different reduction stages, corresponding close reduction strategies (such as top rod support, percutaneous prying, and Joystick technique) were adopted to restore the proximal femoral neck shaft angle, anteversion angle, anterior medial cortex, and length of the affected limb before fixation with intramedullary nails. Recorded were the patient's surgical time, intraoperative bleeding, quality of postoperative reduction, fracture union time, and complications.Results:The surgical time for this group of patients was 70.0(60.0, 92.0) minutes, and the intraoperative blood loss 200.0 (170.0, 200.0) mL. According to the standards by Baumgaertner et al., the quality of postoperative reduction was evaluated as excellent in 103 cases and as good in 12 cases, with an excellent and good rate of 100.0% (115/115). Of the 115 patients, 86 were followed up for more than 6 months to reveal fracture union in all after a duration of 6.0 (4.0, 8.0) months. One patient died of an acute cardiovascular event in the hospital 5 days after surgery. Two patients lost their mobility within 3 months after surgery due to acute cerebral infarction. There was no internal fixation failure requiring secondary surgery or no incision infection.Conclusion:Guided by our self-designed classification system of irreducible intertrochanteric fractures based on the intraoperative reduction stage and the relative position of bone block, real time intraoperative fluoroscopy images can be used to effectively clarify the difficulty of fracture reduction in stages so that corresponding reduction strategies can be adopted, leading to fine clinical efficacy.

Objective: To investigate the expression of CD155/TIGIT in patients with osteosarcoma and its significance Methods : The expression differences of CD155 and TIGIT in tumor tissues of distant metastatic osteosarcoma patients and non⁃metastatic osteosarcoma patients were analyzed by cancer Genome Atlas ( TCGA) database.The surgically removed tissues of osteosarcoma patients were collected to prepare pathological sections and tissue chips , and the tumor tissue and cell morphology were observed by HE staining. Immunohistochemical staining was used to detect the expression of CD155 and TIGIT , and the scores were divided into high expression group and low expression group according to the scores. Chi⁃square test was used to analyze the relationship between CD155/TIG⁃IT expression and clinical features and prognosis. Results : TCGA database data showed higher expression of CD155 and TIGIT in patients with osteosarcoma accompanied by metastasis. HE staining of pathological sections revealed that tumor tissues with high expression of CD155/TIGIT contained more binuclear or multinucleated , hyperchromatic and obviously heteromorphic tumor cells. Immunohistochemical staining and score analysis of tissue chip showed that the expression of CD155 and TIGIT was correlated with clinical stage and distant metastasis ( P < 0. 05) , but not with age , sex , tumor size , pathological type and tumor necrosis rate. Conclusion CD155 and TIGIT may be one of the prognostic indicators of osteosarcoma.