Objective:To evaluate the relationship between superoxide dismutase 2 (SOD2) lactylation and nuclear receptor coactivator 4 (NCOA4)-mediated ferritinophagy-ferroptosis during cerebral ischemia-reperfusion (IR) in mice.Methods:Thirty-six clean-grade male C57BL/6 mice, aged 8-10 weeks, weighing 22-25 g, were divided into 4 groups ( n=9 each) using a table of random numbers: sham operation group (Sham group), cerebral IR group (IR group), IR+ glycolysis inhibitor 2-DG group (IR+ 2-DG group), and IR+ 2-DG+ NCOA4 overexpression group (IR+ 2-DG+ LvNCOA4 group). The model of cerebral IR injury was established by occlusion of the middle cerebral artery for 1 h followed by 24 h of reperfusion using the intraluminal suture method in anesthetized animals. 2-DG 250 mg/kg was intraperitoneally injected at 90 min before ischemia in IR+ 2-DG and IR+ 2-DG+ LvNCOA4 groups. The lentivirus overexpressing NCOA4 2 μl was injected into the ventricles at 7 days before ischemia in IR+ 2-DG+ LvNCOA4 group. The percentage of cerebral infarct volume was determined, the viable neurons were counted, and the levels of reactive oxygen species (ROS), malondialdehyde (MDA), and glutathione (GSH) were measured by enzyme-linked immunosorbent assay. The expression of SOD2, lysine 114 lactylation of superoxide dismutase 2 (SOD2-K114la), NCOA4, microtubule-associated protein 1 light chain 3β (LC3B), and acyl-CoA synthetase long-chain family member 4 (ACSL4) was determined by Western blot. Mitochondrial morphology was examined by electron microscopy. Results:Compared with Sham group, the percentage of cerebral infarct volume was significantly increased, the number of viable neurons was decreased, the levels of ROS and MDA were elevated, the content of GSH was reduced, the expression of SOD2-K114la, NCOA4, LC3B and ACSL4 was up-regulated, the expression of SOD2 was down-regulated ( P<0.05), and the mitochondrial injury was aggravated in IR group. Compared with IR group, the percentage of cerebral infarct volume was significantly decreased, the number of viable neurons was increased, the mitochondrial injury was alleviated, the levels of ROS and MDA were decreased, the content of GSH was increased, the expression of SOD2-K114la, NCOA4 and ACSL4 was down-regulated, and the expression of SOD2 and LC3B was up-regulated in IR+ 2-DG group ( P<0.05). Compared with IR+ 2-DG group, the percentage of cerebral infarct volume was significantly increased, the number of viable neurons was decreased, the levels of ROS and MDA were elevated, the content of GSH was reduced, and the expression of NCOA4, LC3B and ACSL4 was up-regulated ( P<0.05), no significant change was found in the expression of SOD2 and SOD2-K114la ( P>0.05), and the mitochondrial injury was aggravated in IR+ 2-DG+ LvNCOA4 group. Conclusions:SOD2 lactylation promotes NCOA4-mediated ferritinophagy-ferroptosis by enhancing oxidative stress, thereby contributing to the cerebral IR injury in mice.

Inflammatory response,immunosuppression,and drug sensitivity have been reported to have a significant correlation with the disulfidptosis levels in cancer patients.However,the value of disulfidpto-sis in colorectal cancer therapy remains unclear.Therefore,we classified the CRC cells into different cell types using single-cell sequencing data and cell-specific markers and analyzed their relationship with the cell disulfidptosis level.We found that the high disulfidptosis regions were concentrated in epithelial-like CRC cells.Further exploration using the disulfidptosis and programmed cell death 1 inhibitor therapy treated differential expression genes indicated that CRC patients with high disulfidptosis levels exhibited a lower risk profile and increased sensitivity to immunotherapy.By using the spatial transcriptomic analy-sis,we found that ubiquinol-cytochrome c reductase core protein 1(UQCRC1),a disulfidptosis-related gene,is highly expressed in epithelial-like CRC cells and co-localized with immune-infiltrated tumor re-gions.Additional bioinformatic analyses and experimental validation further confirmed that UQCRC1 was downregulated in CRC tissues.Overexpression of UQCRC1 suppressed CRC cell proliferation and migra-tion.These findings indicate that UQCRC1 is a potential target for CRC diagnosis and treatment.

Objective This study aims to compare the clinical efficacy and complications associated with microwave ablation(MWA)and sublobectomyfor treating stage ⅠA non-small cell lung cancer(NSCLC).Methods Data from stage ⅠA1-ⅠA3 NSCLC patients treated at Yunnan Cancer Hospital between January 2021 and December 2022 were retrospectively collected.A total of 82 patients who underwent MWA and 82 patients who received sublobectomy were selected through propensity score matching.Periprocedural conditions,short-term efficacy,and complications were compared between the two groups.Progression-free survival(PFS)and Disease-free survival(DFS)were monitored and evaluated.The Kaplan-Meier method was employed to construct survival curves,and logistic regression was utilized to analyze the factors influencing complications.Results The MWA group exhibited shorter procedure times,less intraprocedural blood loss,less postprocedure pain,shorter hospitalization durations,and lower hospitalization costs compared to the sublobectomy group(P<0.001).All patients successfully underwent the procedures,with a complete ablation rate of 97.6%and a local control rate of 87.8%in the MWA group.The median follow-up duration was 26.5 months.Survival curve analysis indicated no statistically significant differences in PFS and DFS between the two groups.The primary complications observed were pneumothorax(24.4%,20/82)and moderate to severe pain(11.0%,9/82)in the MWA group,while the sublobectomy group experienced moderate to severe pain(41.5%,34/82)and pulmonary infection(12.2%,10/82).Single-factor analysis demonstrated six variables influenced the occurrence of MWA pneumothorax.Multi-factor logistic regression revealed that the shortest distance from the tumor to the pleura(P=0.021,OR=15.341,95%CI:1.699～24.367)and the number of punctures through the pleura(P=0.024,OR=0.068,95%CI:0.001～0.612)were identified as independent risk factors for pneumothorax.Conclusion MWA demonstrates good efficacy for treating stage ⅠA NSCLC due to minimal trauma,low cost,rapid recovery,few and mild complications.Additionally,MWA and sublobectomy exhibit comparable PFS and DFS,making MWA a safe and effective treatment method.Therefore,MWA is worthy of promotion in clini-cal practice.

Objective:To investigate the clinical efficacy of moxibustion(Mox)combined with low-dose tadalafil(TAD)in the treatment of diabetes mellitus-induced erectile dysfunction(DMED)with the syndrome of Qi deficiency and blood stasis.Meth-ods:According to the inclusion and exclusion criteria,we selected 90 patients with DMED for this trial and equally randomized them into a Mox,a TAD,and a Mox combined with TAD(Mox+TAD)group to be treated by mild Mox applied to the acupoints Zusanli,Sanyinjiao and Yinlingquan qd alt,oral medication with low-dose TAD at 5 mg per dose qd,and combination of the above two thera-pies,respectively,all for 4 weeks.We obtained from the patients their IIEF-5 scores,traditional Chinese medicine(TCM)symptoms scores,Erectile Hardness Scale(EHS)scores,corpus cavernosal hemodynamic indexes,and the peak systolic velocity(PSV),end diastolic velocity(EDV)and resistance index(RI)of the corpus cavernosal arteries before and after treatment,and compared them among the three groups.Results:The total effectiveness rate was significantly higher in the Mox+TAD(90.0％)than in the Mox(46.7％)and TAD groups(60.0％)(P＜0.05).Compared with the baseline,the IIEF-5 and EHS scores were increased,while the TCM symptoms scores decreased in all the three groups after treatment,more significantly in the Mox+TAD group than in the other two(P＜0.05).And the PSV and RI were remarkably increased,while the EDV decreased(P＜0.05)in all the three groups(P＜0.05)after treatment,with PSV even higher in the Mox+TAD than in the Mox and TAD groups(P＜0.05).Conclusion:Moxi-bustion combined with tadalafil has a definite efficacy and safety for the treatment of DMED,which can effectively improve the erectile function of the patients by increasing penile blood supply,benefiting qi and activating blood circulation.

Objective:To investigate the effects of individual versus connected microdroplet culture modes in time-lapse (TL) incubators on embryo development parameters and pregnancy outcomes in patients undergoing whole embryo culture to blastocyst stage.Methods:Using a retrospective cohort study, clinical data from 3 507 fresh blastocyst transfer cycles were analyzed. These cycles involved patients who underwent assisted reproductive technology treatment with whole embryo culture to blastocyst stage at the Reproductive Medical Center of Northwest Women's and Children's Hospital between January 2019 and December 2023. Based on different culture modes, patients were divided into two groups, connected group ( n=2 446, using connected microdroplet culture) and individual group ( n=1 061, using individual microdroplet culture). Baseline characteristics, embryo development parameters, pregnancy outcomes, and neonatal outcomes were compared between the two groups. Generalized linear models (GLM) were used to adjust for confounding factors and analyze the effect of culture mode. Results:Embryo development assessment showed the day 3 (D3) high-quality embryo rate in the connected group [60.12% (12 136/20 187)] was significantly lower than that in the individual group [63.62% (4 705/7 395), P<0.001], whereas the high-quality blastocyst formation rate [34.93% (7 052/20 187)] and the available blastocyst formation rate [56.07% (11 319/20 187)] were both significantly higher than those in the individual group [33.08% (2 446/7 395), P=0.004; 51.45% (3 805/7 395), P<0.001], with statistically significant differences. The implantation rate [67.40% (1 774/2 632)], the clinical pregnancy rate [70.20% (1 717/2 446)], and the live birth rate [60.66% (1 469/2 446)] in the connected group were all significantly higher than those in the individual group [63.40% (724/1 142), P=0.017; 66.73% (708/1 061), P=0.041; 55.89% (593/1 061), P=0.021], with statistically significant differences. Neonatal outcomes showed no statistically significant difference between the two groups (all P>0.05). After adjusting for confounding factors using GLM, connected culture was an independent influencing factor for D3 high-quality embryo rate (a MD=-0.017, 95% CI: -0.034-0.000, P=0.046), high-quality blastocyst formation rate (a MD=-0.020, 95% CI: 0.002-0.037, P=0.026), available blastocyst formation rate (a MD=0.032, 95% CI: 0.015-0.048, P<0.001), live birth rate (a OR=1.182, 95% CI: 1.006-1.388, P=0.042). However, it had no effect on D3 available embryo rate, clinical pregnancy rate, or early miscarriage rate (all P>0.05). Conclusion:In TL incubator systems, individual and connected microdroplet culture modes exert different effects at various stages of embryo development. Individual microdroplet culture can significantly enhance cleavage-stage embryo quality, whereas the connected microdroplet culture was more beneficial for enhancing the blastocyst formation rate and quality, ultimately improving the live birth rate without increasing neonatal risks.

Objective This study aims to compare the clinical efficacy and complications associated with microwave ablation(MWA)and sublobectomyfor treating stage ⅠA non-small cell lung cancer(NSCLC).Methods Data from stage ⅠA1-ⅠA3 NSCLC patients treated at Yunnan Cancer Hospital between January 2021 and December 2022 were retrospectively collected.A total of 82 patients who underwent MWA and 82 patients who received sublobectomy were selected through propensity score matching.Periprocedural conditions,short-term efficacy,and complications were compared between the two groups.Progression-free survival(PFS)and Disease-free survival(DFS)were monitored and evaluated.The Kaplan-Meier method was employed to construct survival curves,and logistic regression was utilized to analyze the factors influencing complications.Results The MWA group exhibited shorter procedure times,less intraprocedural blood loss,less postprocedure pain,shorter hospitalization durations,and lower hospitalization costs compared to the sublobectomy group(P<0.001).All patients successfully underwent the procedures,with a complete ablation rate of 97.6%and a local control rate of 87.8%in the MWA group.The median follow-up duration was 26.5 months.Survival curve analysis indicated no statistically significant differences in PFS and DFS between the two groups.The primary complications observed were pneumothorax(24.4%,20/82)and moderate to severe pain(11.0%,9/82)in the MWA group,while the sublobectomy group experienced moderate to severe pain(41.5%,34/82)and pulmonary infection(12.2%,10/82).Single-factor analysis demonstrated six variables influenced the occurrence of MWA pneumothorax.Multi-factor logistic regression revealed that the shortest distance from the tumor to the pleura(P=0.021,OR=15.341,95%CI:1.699～24.367)and the number of punctures through the pleura(P=0.024,OR=0.068,95%CI:0.001～0.612)were identified as independent risk factors for pneumothorax.Conclusion MWA demonstrates good efficacy for treating stage ⅠA NSCLC due to minimal trauma,low cost,rapid recovery,few and mild complications.Additionally,MWA and sublobectomy exhibit comparable PFS and DFS,making MWA a safe and effective treatment method.Therefore,MWA is worthy of promotion in clini-cal practice.

Objective To study the expression characteristics of osteoprotegerin(OPG)/receptor activator of nuclear factor-κB ligand(RANKL)/receptor activator of nuclear factor-κB(RANK)system and the relationship with fibrosis in myocardial tissues of rats with chronic heart failure.Methods SD rats were randomly divided into sham-operation group(12 rats)and model group.In sham-operation group,surgical thread was passed through the abdominal aorta without constricting it after laparotomy;in model group,establish the heart failure model by abdominal aorta coarctation.The successful model rats were randomly divided into model 1 week(12 rats),model 2 weeks(11 rats),model 4 weeks(11 rats),model 8 weeks(11 rats)and model 12 weeks groups(11 rats).The end point of the study is at week 12.The contents of hydroxyproline(HYP),total myocardial collagen and collagen volume fraction(CVF)were compaired in all proups.The expression levels of OPG,RANKL and RANK proteins in cardiomyocytes were determined by Western blot.Results The contents of HYP in sham-operation,model 1 week,model 2 weeks,model 4 weeks,model 8 weeks and model 12 weeks group were(0.25±0.04),(0.37±0.05),(0.45±0.04),(0.60±0.05),(0.82±0.10)and(1.03±0.07)μg·mg-1;the total myocardial collagen contents were(1.87±0.31),(2.73±0.38),(3.36±0.31),(4.47±0.37),(6.08±0.74)and(7.67±0.49)μg·mg-1;the CVF were(1.95±0.23)％,(2.40±0.25)％,(3.65±0.25)％,(5.43±0.29)％,(6.97±0.36)％and(9.38±0.49)％;the relative expression levels of OPG protein were 0.64±0.07,0.80±0.07,1.02±0.07,1.32±0.11,2.13±0.12 and 2.84±0.16;the relative expression levels of RANKL protein were 0.71±0.08,1.06±0.07,1.53±0.07,2.62±0.12,4.46±0.14 and 6.11±0.16;the relative expression levels of RANK protein were 0.30±0.05,0.45±0.05,0.63±0.06,0.98±0.07,1.43±0.10 and 1.63±0.10.With the extention of time,the above indexs of all model groups were significantly higher than those in the sham-operation group(all P＜0.05).There were positive linear correlation between the relative expression levels of OPG,RANKL,RANK protein and the levels of CVF and total contents in cardiomyocytes of rats with chronic heart failure(allP＜0.01).Conclusions In the process of chronic heart failure,the expression of OPG/RANKL/RANK axis is obviously enhanced,in which the up-regulation of RANKL level is most obvious.The expression level of OPG/RANKL/RANK is positively correlated with CVF and total myocardial collagen content.

Objective:To investigate the clinical efficacy of moxibustion(Mox)combined with low-dose tadalafil(TAD)in the treatment of diabetes mellitus-induced erectile dysfunction(DMED)with the syndrome of Qi deficiency and blood stasis.Meth-ods:According to the inclusion and exclusion criteria,we selected 90 patients with DMED for this trial and equally randomized them into a Mox,a TAD,and a Mox combined with TAD(Mox+TAD)group to be treated by mild Mox applied to the acupoints Zusanli,Sanyinjiao and Yinlingquan qd alt,oral medication with low-dose TAD at 5 mg per dose qd,and combination of the above two thera-pies,respectively,all for 4 weeks.We obtained from the patients their IIEF-5 scores,traditional Chinese medicine(TCM)symptoms scores,Erectile Hardness Scale(EHS)scores,corpus cavernosal hemodynamic indexes,and the peak systolic velocity(PSV),end diastolic velocity(EDV)and resistance index(RI)of the corpus cavernosal arteries before and after treatment,and compared them among the three groups.Results:The total effectiveness rate was significantly higher in the Mox+TAD(90.0％)than in the Mox(46.7％)and TAD groups(60.0％)(P＜0.05).Compared with the baseline,the IIEF-5 and EHS scores were increased,while the TCM symptoms scores decreased in all the three groups after treatment,more significantly in the Mox+TAD group than in the other two(P＜0.05).And the PSV and RI were remarkably increased,while the EDV decreased(P＜0.05)in all the three groups(P＜0.05)after treatment,with PSV even higher in the Mox+TAD than in the Mox and TAD groups(P＜0.05).Conclusion:Moxi-bustion combined with tadalafil has a definite efficacy and safety for the treatment of DMED,which can effectively improve the erectile function of the patients by increasing penile blood supply,benefiting qi and activating blood circulation.

Objective:To analyze the effectiveness of different localization methods in colostomy localization among rectal cancer patients with colostomy.Methods:A total of 158 rectal cancer patients who underwent laparoscopic Dixon operation combined with temporary ileostomy from January 2020 to December 2022 at the Peking University Third Hospital were retrospectively selected for the study. Patients were divided into a traditional localization group ( n=86) and a modified localization group ( n=72) based on preoperative colostomy localization methods. The preoperative colostomy localization adoption rate and the incidence of peristoma fecal dermatitis were compared between the two groups. Results:The preoperative colostomy localization adoption rate in modified localization group was higher than that in traditional localization group, and the incidence of peristoma fecal dermatitis was lower than that in traditional localization group, with statistically significant differences ( P<0.05) . Conclusions:The modified rectangular area localization method is accurate for colostomy localization and reduces the risk of colostomy complications in postoperative patients.

Apolipoprotein D(APOD)is a protein that is widely present in animal tissues and is in-volved in the reproductive regulation of the body.In order to investigate the expression regularity of APOD in bactrian camel epididymis and its regulation effect on sperm maturation,this study took the epididymis of bactrian camel during estrus and anestrus as materials,and first cloned the complete sequence of APOD coding sequence(CDS)region.The physicochemical properties of AP-OD were analyzed by ProParam,SOPMA,SWISS-MODEL and MEGA7.0 software.Meanwhile,the expression and distribution of APOD in epididymis were detected by qRT-PCR,Western blot and IHC.The cloning results showed that:the length of the CDS region of APOD gene was 624 bp,encoding 207 amino acids.The APOD sequence of Bactrian camel was highly conserved with the nucleotide and amino acid sequence of alpaca,and the homology of APOD sequence with elk was the lowest.The results of qRT-PCR showed that the mRNA levels of APOD in the head,body and tail of epididymis in estrus were significantly higher than those in estrus(P＜0.01).Western blot results showed that the APOD protein expression and mRNA expression trend was similar in the head and body of the epididymis during anestrus,but the APOD expression level in the tail of the epididymis during anestrus was opposite to the mRNA expression level(P＜0.05).The results of H&E and IHC showed that there were significant differences in epididymal tissue between estrus and anestrus.In addition,APOD showed positive reactions in epididymal epithelial cells,smooth muscle cells,sperm and connective tissue to varying degrees,suggesting that APOD may be in-volved in the maturation of sperm during estrus and anestrus,providing evidence for further explo-ring the regulatory mechanism of APOD's involvement in seasonal estrus.