ObjectiveTo investigate the mechanism of Xiezhuo Jiedu prescription in the treatment of ulcerative colitis （UC） by inhibiting ferroptosis and alleviating intestinal mucosal injury based on the nuclear factor E₂ related factor 2/solute carrier family 7 member/glutathione peroxidase 4 （Nrf2/SLC7A11/GPX4） signaling pathway. MethodsA total of 60 male SD rats were divided into a normal group， a model group， high- and low-dose Xiezhuo Jiedu prescription groups （26.64 and 13.32 g·kg^-1， respectively）， a ferroptosis inhibitor group （Ferrostatin-1， 0.005 g·kg^-1）， and a mesalazine group （0.27 g·kg^-1）， with 10 rats in each group. A UC rat model was established by intrarectal administration of trinitrobenzene sulfonic acid （TNBS）-ethanol. The normal group and the model group were intragastrically administered normal saline. The other groups were given intragastric administration according to the corresponding dosage for 7 d. The general condition， disease activity index （DAI） score， colon length， and mucosal injury index （CDMI） score were observed in each group. The pathological changes of colon tissue in each group were observed by hematoxylin-eosin （HE） staining. The intestinal mucosa and mitochondrial morphology in each group were observed by transmission electron microscopy. The expression levels of Occludin， Claudin-1， mucin 2 （MUC2）， and E-cadherin in intestinal tissue were detected by immunofluorescence （IF）. Enzyme-linked immunosorbent assay （ELISA） was used to detect the expression levels of serum tumor necrosis factor-α （TNF-α）， interleukin-6 （IL-6）， and interleukin-10 （IL-10） in each group， and a lactic acid assay kit or ELISA was employed to detect the expression levels of reactive oxygen species （ROS）， ferrous ions （Fe²⁺）， glutathione （GSH）， malondialdehyde （MDA）， 4-hydroxynonenal （4-HNE）， diamine oxidase （DAO）， and D-lactate （D-LA）. Real-time quantitative polymerase chain reaction （Real-time PCR） was applied to detect the mRNA expression levels of Nrf2， SLC7A11， GPX4， Occludin， Claudin-1， MUC2， and E-cadherin in each group， and Western blot was adopted to detect the protein expression levels of Nrf2， p-Nrf2， SLC7A11， and GPX4 in each group. ResultsCompared with the normal group， rats in the model group exhibited listlessness， sluggish response， and mucopurulent and bloody stools. The model group also showed significantly increased DAI score， colon length， CDMI score， and expression levels of TNF-α， IL-6， ROS， Fe²⁺， MDA， 4-HNE， DAO， and D-LA （P<0.01）. In addition， it presented significantly decreased IF values of Occludin， Claudin-1， MUC2， and E-cadherin and mRNA and protein expression levels of IL-10， GSH， Nrf2， p-Nrf2， SLC7A11， and GPX4 （P<0.01）. There were different degrees of improvement in each administration group after treatment， and the improvement was the most significant in the high-dose Xiezhuo Jiedu prescription group （P<0.01）. ConclusionXiezhuo Jiedu prescription may alleviate intestinal mucosal injury by inhibiting ferroptosis of intestinal epithelial cells via regulating the Nrf2/SLC7A11/GPX4 signaling pathway， thereby exhibiting efficacy in the treatment of UC.

Objective To explore the mechanism of Huanglian Ganjiang Decoction in regulating the mitochondrial apoptotic pathway through the NF-κB/CXCL1/CXCR2 pathway in ulcerative colitis(UC).Methods Sixty C57BL/6J mice were divided into normal group,model group,Huanglian Ganzhang Decoction groups(low,medium and high doses)and mesalazine group.Except for the normal group,UC models were established in the other groups.The general conditions of the mice of all groups were recorded.HE staining was used to observe the pathological changes of the colon and rectum;electron microscopy was used to observe the mitochondrial condition;ELISA was used to determine the contents of IL-6,IL-10,D-lactic acid and DAO;Real-time PCR was used to detect the mRNA expression of NF-κB p65,CXCL1,CXCR2,Bcl-2 and Bax;Western blot was used to determine the protein expression levels of NF-κB p65,CXCL1,CXCR2,p-JAK2,p-STAT3,Bcl-2 and Bax.Results Compared with the normal group,the model group of mice showed a decline in condition,shortened length of the colon and rectum,and mitochondrial structural damage,furthermore,the levels of IL-6,DAO and D-lactic acid were increased,IL-10 level was decreased,the mRNA expression of NF-κB p65,CXCL1,CXCR2 and Bax were enhanced,Bcl-2 mRNA expression was weakened,the protein expression of NF-κB p65,CXCL1,CXCR2,p-JAK2,p-STAT3 and Bax were enhanced,Bcl-2 protein expression was weakened.Compared with the model group,the indexes mentioned above were reversed in the drug groups,especially in the high-dose group.Conclusion Huanglian Ganjiang Decoction may exert its therapeutic effect on UC in mice by regulating the NF-κB/CXCL1/CXCR2 pathway and mitochondrial apoptotic pathway.

Objective To compare the incidence of complications after removal of chest drainage tube in the early and late stages after sublobectomy for non-small cell lung cancer (NSCLC), and to analyze the factors affecting postoperative pleural drainage volume (PDV), so as to explore the countermeasures and achieve rapid postoperative rehabilitation. Methods The patients with NSCLC who underwent minimally invasive sublobectomy in our hospital from January to October 2021 were enrolled. According to the median time of extubation, the patients were divided into an early extubation group (time with tube≤3 days) and a late extubation group (time with tube>3 days). The patients were matched via propensity score matching with a ratio of 1:1 and a caliper value of 0.02. The incidence of complications and perioperative parameters after removal of the thoracic drainage tube were analyzed and compared between the two groups, and univariate and multiple linear regression analyses were performed. Results A total of 157 patients were enrolled, including 79 males and 78 females, with an average age of (58.22±11.06) years. There were 76 patients in the early extubation group, 81 patients in the late extubation group, and 56 patients were in each group after propensity score matching. Compared with late extubation group, there was no significant difference in the incidence of infection after extubation (10.7% vs. 16.1%, P=0.405) or pleural effusion after extubation (5.4% vs. 3.6%, P=0.647) in early extubation group, and there was no second operation in both groups. Univariate analysis showed that smoking history (P=0.001), postoperative serum albumin reduction value (P=0.017), surgical approach (P=0.014), lesion location (P=0.027), differentiation degree (P=0.041), TNM stage (P=0.043), number of dissected lymph nodes (P=0.016), and intraoperative blood loss (P=0.016) were infuencing factors for increased postoperative PDV. Multiple linear regression analysis showed that smoking history (P=0.002), postoperative serum albumin reduction value (P=0.041), and the number of dissected lymph nodes (P=0.023) were independent risk factors for increased postoperative PDV. Conclusion There is no significant difference in the incidence of complications after extubation between early and late extubations. Preoperative smoking history, excessive postoperative serum albumin decreases, and excessive number of dissected lymph nodes during the surgery are independent risk factors for increased postoperative PDV.

Objective To investigate the relationship between high DNA stainability(HDS)and routine semen parameters.Methods Semen samples were collected from 396 men of childbearing age who were admitted to our department.Correlations of HDS with routine semen parameters and age were analyzed.Multiple linear regression analysis was performed to identify the routine semen parameters that had the greatest influence on HDS.The correlation of HDS and DNA fragmentation index(DFI)with routine semen parameters and age in 244 patients with teratozoospermia was analyzed.The 244 patients were divided into extremely severe,severe,moderate,and mild teratozoospermia groups,and differences in HDS,DFI,and routine semen parameters were compared among the four groups.Results HDS was negatively correlated with total sperm count,sperm concentration,sperm progressive motility,and normal sperm morphology rate(NSMR)(P<0.01).After adjusting for potential confounders,including total sperm count,sperm concentration,sperm progressive motility,NSMR,and DFI,NSMR had the most significant negative effect on HDS(P<0.05).In the 244 patients with teratozoospermia,HDS was negatively correlated with NSMR(P<0.01)and positively correlated with the percentage of sperm head and tail abnormalities(P<0.05),while DFI was positively correlated with the percentage of sperm tail abnormalities(P<0.01).There was a significant difference in the percentage of sperm head abnormalities among the four teratozoospermia groups.The more severe the malfor-mation,the higher the percentage of sperm head abnormalities was(P<0.001).HDS in the extremely severe teratozoospermia group was significantly higher than that in the mild and moderate teratozoospermia groups(P<0.05).No significant differences in DFI were found among the four groups(P>0.05).Conclusion HDS was closely correlated with routine semen parameters and was a crucial biomarker for assessing sperm quality,particularly the extent of sperm head abnormalities.

Objective To investigate the correlation between seminal plasma oxidation-reduction potential(ORP)and normalized ORP(nORP)with sperm DNA fragmentation index(DFI),high DNA staining(HDS),and motility parameters,and to explore whether these parameters can be used as biomarkers for evaluating male fertility potential.Methods A total of 309 men who attended the andrology clinic at the Department of Reproductive Medicine,General Hospital of Northern Theater Command,between October 2023 and December 2023,were selected in this study.We analyzed the correlation between seminal plasma ORP and nORP and parameters such as DFI using the electrode method,HDS,age,days of abstinence,semen volume,total sperm count,sperm concentration,sperm motility(forward motile sperm count,forward motile sperm percentage,non-forward sperm count,non-forward sperm percentage,immotile sperm count,immotile sperm percentage,and sperm motility rate),and motility indices(curvilinear velocity[VCL],straight-line velocity[VSL],average velocity[VAP],linear index[LIN],straightness index[STR],and wobble coefficient[WOB]).The nORP results were divided into three groups and analyzed in relation to each of the parameters mentioned above.A generalized linear regression model was used to assess the relationship between nORP and HDS,with smooth curve fitting performed to visualize this relationship.Results Pearson and Spearman correlation analyses revealed that both ORP and nORP were positively correlated with semen volume,percentage of immotile sperm,and DFI,but negatively correlated with forward motile sperm count,percentage of forward motile sperm,sperm motility rate,VSL,and VAP(P＜0.05).Additionally,ORP was positively correlated with abstinence days and immotile sperm count(P＜0.05)and negatively correlated with LIN,STR,and WOB(P＜0.05).However,nORP was positively correlated with HDS(P＜0.05),and negatively correlated with total sperm count,sperm concentration,non-forward sperm count,non-forward sperm percentage,immotile sperm count,and VCL(P＜0.05).The nORP group showed significant differences in semen volume,total sperm count,sperm concentration,forward motile sperm count,forward motile sperm percentage,non-forward sperm count,non-forward sperm percentage,immotile sperm count,immotile sperm percentage,sperm motility rate,VCL,VSL,VAP,DFI,and HDS(P＜0.05).A smooth curve fitting of nORP and HDS,adjusted for age and abstinence days,demonstrated a linear upward trend in nORP as HDS increased.Conclusion Both ORP and nORP are associated with sperm DFI and key motility parameters.Moreover,nORP is closely related to HDS,which reflects sperm maturity,offering a more comprehensive indicator of semen quality.Thus,nORP can be utilized as a biomarker for assessing male fertility potential.

Objective To analyze and compare the diagnostic criteria of dampness syndrome in clinical studies and construct a dampness syndrome entry pool,so as to provide theoretical support for the development of dampness-related scales,and then provide reference for clinical research.Methods By searching the literature collected by CNKI,VIP and Wanfang data database from 1960 to 2023,the clinical research literature of dampness syndrome was searched and screened,and the diagnostic criteria of dampness syndrome were summarized and analyzed.Results A total of 7651 articles were retrieved from the above database,and 52 articles were finally included.9 diagnostic criteria were obtained by combining the screening of teaching materials.They are The National Standard of Chinese Medicine Clinical Diagnosis and Treatment of Chinese Medicine(GB/T16751.2-1997),Syndrome element differentiation,Traditional Chinese Medicine Syndrome Standards,Traditional Chinese Medicine Syndrome Differentiation and Diagnosis,Diagnostics of Traditional Chinese Medicine(Fifth edition,sixth edition,second edition of the new century,People's Health Commission edition,and tenth edition of the National Higher Traditional Chinese Medicine College Planning Textbook).The diagnostic methods can be divided into three kinds:narrative method,primary and secondary disease(or see disease)classification diagnosis method,and assigning method.There are a total of 36 symptom components,which can be divided into four groups:the accumulation of muscle and striae group,the obstruction of meridians and joints group,the internal accumulation of organs group,and the dampness and obstruction of orifices group.The National Standard of Chinese Medicine Clinical Diagnosis and Treatment of Chinese Medicine(GB/T16751.2-1997)has been cited for a maximum of 22 times,covering 16 diseases.Conclusion The National Standard of Chinese Medicine Clinical Diagnosis and Treatment of Chinese Medicine is the most widely used in clinical research,and the new version of national standard in 2021 is more suitable for the current diagnosis and clinical research of dampness syndrome.

Objective To explore the mechanism of Huanglian Ganjiang Decoction in regulating the mitochondrial apoptotic pathway through the NF-κB/CXCL1/CXCR2 pathway in ulcerative colitis(UC).Methods Sixty C57BL/6J mice were divided into normal group,model group,Huanglian Ganzhang Decoction groups(low,medium and high doses)and mesalazine group.Except for the normal group,UC models were established in the other groups.The general conditions of the mice of all groups were recorded.HE staining was used to observe the pathological changes of the colon and rectum;electron microscopy was used to observe the mitochondrial condition;ELISA was used to determine the contents of IL-6,IL-10,D-lactic acid and DAO;Real-time PCR was used to detect the mRNA expression of NF-κB p65,CXCL1,CXCR2,Bcl-2 and Bax;Western blot was used to determine the protein expression levels of NF-κB p65,CXCL1,CXCR2,p-JAK2,p-STAT3,Bcl-2 and Bax.Results Compared with the normal group,the model group of mice showed a decline in condition,shortened length of the colon and rectum,and mitochondrial structural damage,furthermore,the levels of IL-6,DAO and D-lactic acid were increased,IL-10 level was decreased,the mRNA expression of NF-κB p65,CXCL1,CXCR2 and Bax were enhanced,Bcl-2 mRNA expression was weakened,the protein expression of NF-κB p65,CXCL1,CXCR2,p-JAK2,p-STAT3 and Bax were enhanced,Bcl-2 protein expression was weakened.Compared with the model group,the indexes mentioned above were reversed in the drug groups,especially in the high-dose group.Conclusion Huanglian Ganjiang Decoction may exert its therapeutic effect on UC in mice by regulating the NF-κB/CXCL1/CXCR2 pathway and mitochondrial apoptotic pathway.

Objective To investigate the relationship between high DNA stainability(HDS)and routine semen parameters.Methods Semen samples were collected from 396 men of childbearing age who were admitted to our department.Correlations of HDS with routine semen parameters and age were analyzed.Multiple linear regression analysis was performed to identify the routine semen parameters that had the greatest influence on HDS.The correlation of HDS and DNA fragmentation index(DFI)with routine semen parameters and age in 244 patients with teratozoospermia was analyzed.The 244 patients were divided into extremely severe,severe,moderate,and mild teratozoospermia groups,and differences in HDS,DFI,and routine semen parameters were compared among the four groups.Results HDS was negatively correlated with total sperm count,sperm concentration,sperm progressive motility,and normal sperm morphology rate(NSMR)(P<0.01).After adjusting for potential confounders,including total sperm count,sperm concentration,sperm progressive motility,NSMR,and DFI,NSMR had the most significant negative effect on HDS(P<0.05).In the 244 patients with teratozoospermia,HDS was negatively correlated with NSMR(P<0.01)and positively correlated with the percentage of sperm head and tail abnormalities(P<0.05),while DFI was positively correlated with the percentage of sperm tail abnormalities(P<0.01).There was a significant difference in the percentage of sperm head abnormalities among the four teratozoospermia groups.The more severe the malfor-mation,the higher the percentage of sperm head abnormalities was(P<0.001).HDS in the extremely severe teratozoospermia group was significantly higher than that in the mild and moderate teratozoospermia groups(P<0.05).No significant differences in DFI were found among the four groups(P>0.05).Conclusion HDS was closely correlated with routine semen parameters and was a crucial biomarker for assessing sperm quality,particularly the extent of sperm head abnormalities.

Objective To analyze and compare the diagnostic criteria of dampness syndrome in clinical studies and construct a dampness syndrome entry pool,so as to provide theoretical support for the development of dampness-related scales,and then provide reference for clinical research.Methods By searching the literature collected by CNKI,VIP and Wanfang data database from 1960 to 2023,the clinical research literature of dampness syndrome was searched and screened,and the diagnostic criteria of dampness syndrome were summarized and analyzed.Results A total of 7651 articles were retrieved from the above database,and 52 articles were finally included.9 diagnostic criteria were obtained by combining the screening of teaching materials.They are The National Standard of Chinese Medicine Clinical Diagnosis and Treatment of Chinese Medicine(GB/T16751.2-1997),Syndrome element differentiation,Traditional Chinese Medicine Syndrome Standards,Traditional Chinese Medicine Syndrome Differentiation and Diagnosis,Diagnostics of Traditional Chinese Medicine(Fifth edition,sixth edition,second edition of the new century,People's Health Commission edition,and tenth edition of the National Higher Traditional Chinese Medicine College Planning Textbook).The diagnostic methods can be divided into three kinds:narrative method,primary and secondary disease(or see disease)classification diagnosis method,and assigning method.There are a total of 36 symptom components,which can be divided into four groups:the accumulation of muscle and striae group,the obstruction of meridians and joints group,the internal accumulation of organs group,and the dampness and obstruction of orifices group.The National Standard of Chinese Medicine Clinical Diagnosis and Treatment of Chinese Medicine(GB/T16751.2-1997)has been cited for a maximum of 22 times,covering 16 diseases.Conclusion The National Standard of Chinese Medicine Clinical Diagnosis and Treatment of Chinese Medicine is the most widely used in clinical research,and the new version of national standard in 2021 is more suitable for the current diagnosis and clinical research of dampness syndrome.

Objective To investigate the correlation between seminal plasma oxidation-reduction potential(ORP)and normalized ORP(nORP)with sperm DNA fragmentation index(DFI),high DNA staining(HDS),and motility parameters,and to explore whether these parameters can be used as biomarkers for evaluating male fertility potential.Methods A total of 309 men who attended the andrology clinic at the Department of Reproductive Medicine,General Hospital of Northern Theater Command,between October 2023 and December 2023,were selected in this study.We analyzed the correlation between seminal plasma ORP and nORP and parameters such as DFI using the electrode method,HDS,age,days of abstinence,semen volume,total sperm count,sperm concentration,sperm motility(forward motile sperm count,forward motile sperm percentage,non-forward sperm count,non-forward sperm percentage,immotile sperm count,immotile sperm percentage,and sperm motility rate),and motility indices(curvilinear velocity[VCL],straight-line velocity[VSL],average velocity[VAP],linear index[LIN],straightness index[STR],and wobble coefficient[WOB]).The nORP results were divided into three groups and analyzed in relation to each of the parameters mentioned above.A generalized linear regression model was used to assess the relationship between nORP and HDS,with smooth curve fitting performed to visualize this relationship.Results Pearson and Spearman correlation analyses revealed that both ORP and nORP were positively correlated with semen volume,percentage of immotile sperm,and DFI,but negatively correlated with forward motile sperm count,percentage of forward motile sperm,sperm motility rate,VSL,and VAP(P＜0.05).Additionally,ORP was positively correlated with abstinence days and immotile sperm count(P＜0.05)and negatively correlated with LIN,STR,and WOB(P＜0.05).However,nORP was positively correlated with HDS(P＜0.05),and negatively correlated with total sperm count,sperm concentration,non-forward sperm count,non-forward sperm percentage,immotile sperm count,and VCL(P＜0.05).The nORP group showed significant differences in semen volume,total sperm count,sperm concentration,forward motile sperm count,forward motile sperm percentage,non-forward sperm count,non-forward sperm percentage,immotile sperm count,immotile sperm percentage,sperm motility rate,VCL,VSL,VAP,DFI,and HDS(P＜0.05).A smooth curve fitting of nORP and HDS,adjusted for age and abstinence days,demonstrated a linear upward trend in nORP as HDS increased.Conclusion Both ORP and nORP are associated with sperm DFI and key motility parameters.Moreover,nORP is closely related to HDS,which reflects sperm maturity,offering a more comprehensive indicator of semen quality.Thus,nORP can be utilized as a biomarker for assessing male fertility potential.