Aim To explore the protective effect of an-thocyanin B2(PCB2)on hydrogen peroxide(H2O2)induced oxidative damage and apoptosis in human oli-godendrocytes(MO3.13)and the underlying mecha-nism.Methods The optimal concentration of H2O2 and PCB2 for action was screened,and divided into normal group,PCB2 group(100 mg·L-1 PCB2 treat-ment for 24 hours),H2 O2 model group(500 μmol·L-1 H2O2 treatment for 24 hours),and H2O2+PCB2 group(500 μmol·L-1 H2O2 and 100 mg·L-1 PCB2 co-treated for 24 hours).FRAP method was used to detect the antioxidant capacity of PCB2;CCK-8 meth-od was used to detect the survival rate of cells in each group,while LDH method was used to assess cytotoxic-ity.Microenzyme-linked immunosorbent assay and ELISA were used to examine the levels of LDH,NO,H2O2,as well as the activities of CAT and SOD in each group of cells.Immunofluorescence and Western blot were used to detect the protein expression levels of NRF2,xCT,HO-1,ferritin,and GPX4 in each group of cells.FerroOrange fluorescent probe was used to de-tect the intracellular content of ferrous ions(Fe2+).Results H2O2 could induce MO3.13 oxidative dam-age and lead to cell ferroptosis,while PCB2 could alle-viate MO3.13 oxidative damage and ferroptosis.Com-pared with the H2O2 model group,PCB2 intervention could significantly increase LDH content in MO3.13,reduce NO and H2O2 content,and improve SOD and CAT activity,and up-regulate the protein expression levels of NRF2,xCT,HO-1,ferritin,and GPX4.Conclusion PCB2 can enhance cellular antioxidant capacity and alleviate H2O2 induced MO3.13 oxidative damage through the NRF2/HO-1/xCT/GPX4 axis.

OBJECTIVE：To study the anti- inflammatory effect and mechanism of Jingulian capsule on inflammatory model rats. METHODS ：Totally 48 rats were randomly divided into blank control group ，model group ，Jingulian capsule low-dose ， medium-dose and high-dose groups （0.66，1.32，2.64 g/kg），dexamethasone group （positive control ，0.945 mg/kg），with 8 rats in each group. Blank control group and model group were given constant volume of water intragastrically ，and other groups were given relevant medicine intragastrocally ，twice a day ，for consecutive 3 days. Thirty minutes after last administration ，model group and administration groups were given lipopolysaccharide （10 mg/kg）intraperitoneally to induce inflammatory model. Six hours after intraperitoneal injection ，the contents of TNF-α，IL-1β，IL-6，PGE2 in serum were detected by ELISA. The wet to dry weight （W/D）ratio of lung tissue were determined. HE staining was used to observe the pathological changes of lung tissue . RT-PCR was used to detect the mRNA expression of TNF-α，IL-6，PGE2 and IL- 1β in lung tissue. Western blot assay was used to detect the phosphorylation of NF-κB p65 protein and the expression of IκBα protein in lung tissue. RESULTS：Compared with blank ； control group ，the contents of TNF-α，IL-1β，IL-6 and PGE 2 in serum ，the W/D ratio of lung tissue ，the expression of TNF-α，IL-1β，IL-6 and PGE 2 mRNA and the phosphorylation level of NF-κB p65 protein in lung tissue of model group weresignificantly increased ，and the expression of IκBα proteinwas significantly decreased （P＜0.05 or P＜0.01）；a large number of alveolar atrophy and collapse ，alveolar wall thickening ，lung consolidation ，and a large number of inflammatory cell infiltration could be seen in lung tissue. Compared with model group ，the contents of TNF-α，IL-1β（except for low-dose group ）， IL-6 and PGE 2 in serum ，as well as the expression of TNF-α（except for high-dose group ），IL-1β，IL-6（except for low-dose ， high-dose groups ）and PGE 2 mRNA in lung tissue were decreased significantly in Jingulian capsule groups （P＜0.05 or P＜0.01）； the W/D ratio of lung tissue was decreased significantly in Jingulian high-dose group （P＜0.05 or P＜0.01）；the expression of phosphorylation level of NF-κB p65 protein in lung tissue of Jingulian medium-dose group were decreased significantly （P＜0.05 or P＜0.01），while the expression of IκBα protein was increased significantly（P＜0.05）；the alveolar structure was clear ，the alveolar wall was slightly thickened ， and a small amount of inflammatory cell infiltration was seen in lung tissue. CONCLUSIONS：Jingulian capsule has good anti-inflammatory effect on inflammatory model rats ，the mechanism of which may be related to the inhibition of NF-κB signal pathway.

Objective     To identify the risk factors for postoperative recurrence of peripheral solid small-nodule lung cancer (PSSNLC) (T≤2 cm), and to explore the effects of surgery types on prognosis. Methods     We extracted data from Western China Lung Cancer Database (WCLCD), a prospectively maintained database at the Department of Thoracic Surgery, West China Hospital, Sichuan University, and Surveillance, Epidemiology, and End Results (SEER)  database for peripheral solid small-nodule lung cancer patients (T≤2 cm N0M0, stageⅠ) who underwent surgery between 2005 and 2016. We used univariable and multivariable logistic regression to analyze risk factors for recurrence of PSSNLC. We applied propensity-score matching to compare the long-term results of segmentectomy and lobectomy, as well as the survival of patients from WCLCD and SEER. We finally included 4 800 patients with PSSNLC (T≤2 cm N0M0)(WCLCD: SEER=354∶4 446). We matched 103 segmentectomies and 350 lobectomies in T≤1 cm, and 280 segmentectomies and 1 067 lobectomies in 1 cm

Objective:To investigate the frequency of myeloid dendritic cells (mDC) and plasmacytoid dendritic cells (pDC) in peripheral blood of patients with systemic lupus erythematosus (SLE) and their relationship with renal injury.Methods:The frequency of peripheral mDC and pDC in 102 SLE patients and 10 healthy controls were detected by flow cytometry. The quantitative data were expressed by [ M( P25, P75)]. The measurement data of the two groups with non-normal distribution was analyzed by Mann Whitney U test. The correlation between the two groups was analyzed by Spearman rank correlation analysis and multiple linear regression. Results:The frequency of pDC [14.00%(7.92%, 19.65%) vs 24.55%(19.68%, 32.90%), Z=-3.163, P<0.01] and mDC [21.25%(13.28%, 32.83%) vs 34.85%(24.58%, 41.93%), Z=-2.607, P<0.01] in the peripheral blood of 102 patients with SLE were significantly lower than those of healthy controls. The frequency of pDC [9.09%(7.31%, 17.38%) vs 24.55%(19.68%, 32.90%), Z=-3.033, P=<0.01] and mDC [9.40%(7.88%, 21.60%) vs 34.85%(24.58%, 41.93%), Z=-3.231, P<0.01] in 12 patients with newly diagnosed SLE were also significantly lower than those in healthy controls. After adjustedfor confounding factors, multivariate analysis showed that SLEDAI level was the main factor influencing the frequency of pDC ( P=0.019) and mDC ( P<0.01). In addition, pDC[8.02%(2.25%, 9.97%) vs 16.70%(11.80%, 24.60%), Z=-2.490, P=0.015] and mDC[8.80%(5.99%, 12.80%) vs 20.20%(11.20%, 42.80%), Z=-2.226, P=0.029] in patients with active LN were also significantly lower than that of patients with stable LN. The mDC frequency was positively correlated with the levels of complement C3 ( r=0.455, P<0.01) and C4 ( r= 0.289, P, P<0.01). Conclusion:The frequency of mDC and pDC in SLE patients is significantly abnormal, which is closely related to disease activity. In addition, pDC and mDC may be involved in the occurrence and development of LN.

Objective     To analyze the perioperative outcomes of uniportal thoracoscopic lobectomy compared with three-port thoracoscopic lobectomy. Methods     Data were extracted from the Western China Lung Cancer Database, a prospectively maintained database at the Department of Thoracic Surgery, West China Hospital, Sichuan University. Perioperative outcomes of the patients who underwent uniportal or three-port thoracoscopic lobectomy for lung cancer during January 2014 through April 2021 were analyzed by using propensity score matching. Altogether 5 817 lung cancer patients were enrolled who underwent thoracoscopic lobectomy (uniportal: 530 patients; three-port: 5 287 patients). After matching, 529 patients of uniportal and 1 583 patients of three-port were included. There were 529 patients with 320 males and 209 females at median age of 58 (51, 65) years in the uniportal group and 1 583 patients with 915 males and 668 females at median age of 58 (51, 65) years in the three-port group. Results     Uniportal thoracoscopic lobectomy was associated with less intraoperative blood loss (20 mL vs. 30 mL, P<0.001), longer operative time (115 min vs. 105 min, P<0.001) than three-port thoracoscopic lobectomy. No significant difference was found between the two groups regarding the number of lymph node dissected, rate of conversion to thoracotomy, incidence of postoperative complication, postoperative pain score within 3 postoperative days, length of hospital stay, or hospitalization expenses. Conclusion     Uniportal video-assisted thoracoscopic lobectomy is safe and effective, and the overall perioperative outcomes are comparable between uniportal and three-port strategies, although the two groups show differences in intraoperative blood loss.

Objective     To summarize the perioperative and long-term outcomes of ground-glass opacity (GGO) dominant early stage lung cancer patients treated by anatomic segmentectomy. Methods     We collected clinical data of 756 patients from Western China Lung Cancer Database, who underwent intentional anatomic segmentectomy [tumor size (T) ≤ 2 cm, GGO ≥ 50%] in the Department of Thoracic Surgery, West China Hospital, Sichuan University from 2009 to 2018. There were 233 males and 523 females at a median age of 53 (25-83) years including 290 (38.4%) patients of simple segmentectomy and 466 (61.6%) patients of complex segmentectomy. All patients were diagnosed as adenocarcinoma, including 338 (44.7%) patients of minimally invasive adenocarcinoma and 418 (55.3%) patients of invasive adenocarcinoma. Results     The median operative time was 115 (38-300) min, the median blood loss was 20 (5-800) mL, 58 (7.7%) patients had postoperative complications and the postoperative stay was 4 (2-24) days. The median follow-up period was 43.0 (30.1-167.9) months. Five-year overall survival rate was 99.5% [95%CI (98.8%, 100.0%)], 5-year recurrence-free survival rate was 98.8% [95%CI (97.5%, 100.0%)], and 5-year lung cancer-specific survival rate was 100.0%. Conclusion    Anatomic segmentectomy has favorable perioperative outcomes and excellent prognosis in GGO dominant early stage lung cancer patients.

Objective To explore the functional status and influencing factors of physical fitness of children with intellectual and developmental disabilities enrolled in special education, and to establish framework of physical fitness for analysis of physical fitness and exercise intervention using International Classification of Functioning, Disability and Health (ICF). Methods Based on the ICF apporach, we analyzed the functional status and physical fitness characteristics and influencing factors of students in special education schools, and developed a function-based physical fitness intervention program for children with intellectual and developmental disabilities with reference to the requirements of WHO Guidelines on Physical Activity and Sedentary Behavior (2020). Results A systematic analysis of the overall functional status of children with intellectual and developmental disabilities based on ICF, especially intellectual functions, activities and environmental factors related to intellectual disability, was conducted and discussed in the context of related motor functions and physical fitness. A physical activity program was developed based on the ICF and with reference to WHO Guidelines on Physical Activity and Sedentary Behavior (Children and Adolescents), and related adaptive support strategies were proposed. Conclusion The overall functional status of children with intellectual and developmental disabilities has been analyzed in body functioning (both intellectual and motor), activity and participation, and environmental factors. Based on WHO Guidelines on Physical Activity and Sedentary Behavior and the ICF framework, a physical activity program for physical fitness with adaptive and supportive teaching and training methods, has been developed for children with intellectual and developmental disabilities.

Objective: “Same treatment for different diseases” is a unique treatment strategy under the guidance of traditional Chinese medicine (TCM) theory. Codonopsis Radix (Codonopsis pilosula, Dangshen in Chinese) with spleen-fortifying effect was employed to understand the strategy of “Same treatment for different diseases”, based on its common mechanism in the treatment of gastric diseases including gastric ulcer, gastritis and gastric cancer via network pharmacology research. Methods: Network pharmacology research methods were used to analyze the interaction network and potential mechanisms of Dangshen in treating gastric ulcer, gastritis and gastric cancer. The active components and their target proteins of Dangshen were integrated from TCMSP, BATMAN-TCM databases. The targets of gastric ulcer, gastritis and gastric cancer were collected through GeneCards, PubMed, TDD and DisGeNET Database. Through screening, the key components and the key targets of Dangshen in treating gastric ulcer, gastritis and gastric cancer were obtained. After KEGG pathway analysis and GO analysis, the important pathways and biological processes were analyzed. Results: Through data and literature mining, the common and specific pharmaceutical effects and mechanism of Dangshen were summarized in these three gastric lesions. It was shown that Dangshen mainly acted on gastric ulcer, gastritis and gastric cancer through the overall regulation of the PI3K-AKT signaling pathway. With the development of the disease, it will gradually increase the control of inflammation through TNF, NF-κB and other inflammation-related signaling pathways to reduce inflammatory damage. For tumorigenesis, it pays more attention to inhibiting the ErbB signaling pathways to reduce the proliferation and migration of tumor cells. In addition, Dangshen's regulation of HIF-1 signaling pathway may also be beneficial for the treatment of gastric ulcer, gastritis and gastric cancer. Conclusion: Dangshen achieves spleen-fortifying effect on gastric diseases including gastric ulcer, gastritis and gastric cancer through multiple targets in multiple pathways, especially PI3K-AKT pathway and HIF-1 pathway. It could provide a scientific basis for understanding the strategy of “Same treatment for different diseases” in traditional Chinese medicine.

OBJECTIVE：To compare the volatile components extracted from the roots ，stems and leaves of Gaultheria yunnanensis. METHODS ：Steam distillation method was used to extract the volatile oils from roots ，stems and leaves of G. yunnanensis. Chemical constituents were analyzed by GC-MS. NIST 2011 standard mass spectral library was adopted to select the chromatographic peak with a matching degree higher than 80，and combined with relevant literatures for identification. Relative percentages of chemical constituents were calculated by peak area normalization. RESULTS ：Totally 95 chromatographic peaks were detected in valatile oil from the roots of G. yunnanensis and 54 chemical constituents were identified ，accounting for 82.35％ of the total content of root volatile components. The constituents with relatively high content were methyl salicylate （20.30％）， n-hexadecanoic acid （19.86％），（Z，Z）-9，12-octadecadienoic acid （9.26％），phenanthrene（4.37％）and so on. Totally 69 chromatographic peaks were detected in volatile oil from the stems and leaves of G. yunnanensis and 46 chemical constituents were identified，accounting for 97.10％ of the total content of volatile components in stems and leaves. The constituents with relatively high content were methyl salicylate （86.72％），n-hexadecanoic acid （2.60％），（Z，Z，Z）-9，12，15-octadecatrienoic acid （1.25％） and so on. Both of them contained 16 common constituents such as alkenes esters ，acids and so on. CONCLUSIONS：The chemical constituents of volatile oils extracted from the roots ， stems and leaves of G. yunnanensis are mainly esters and acids. The components are similar to each other ，but the contents of acids in the roots and esters in the leaves and stems are higher.

OBJECTIVE: To explore the correlation between microRNA (miRNA) differential expression and quality of embryo. METHODS: The miRNA expression profiles of 8 blastocysts were detected by a TaqMan microRNA array, and miRNAs with a stable expression were selected. Additional blastocysts were selected, and the candidate miRNA was detected by real-time PCR. Meanwhile, chromosomal abnormalities of the embryos were detected by using next-generation sequencing, and the results were compared. RESULTS: The expression of mir-720, mir-372, mir-886-3p and mir-512-3p was higher than that of miR-145, which suggested that mir-720, mir-372, mir-886-3p and mir-512-3p are related to early embryo development. The expression of miR-145 and mir-886-3p were significantly lower in the normal chromosome group. With the threshold values of above 9 and 3 for the relative expression of miR-145 and mir-886-3p, respectively, there was no embryo without a chromosomal abnormality. CONCLUSION There is a correlation between the expression level of specific miRNA and chromosomal abnormalities of embryos, which may be used as a novel biomarker for embryo selection.