OBJECTIVE To study the chemical constituents in the root bark of Schisandra sphenanthera and their cytotoxic activ-ities.METHODS The compounds were isolated and purified by silica,Sephadex LH-20 and semi preparative-HPLC and the chem-ical structures were identified by 1 H-NMR,13 C-NMR and MS data analysis.The cytotoxic activities of the compounds were deter-mined by MTT method.RESULTS Twenty lignans were isolated and deduced as:Matairesinol(1),2-Hydroxy-2-(3′,4′-di-hydroxyphenyl)methyl-3-(3″,4″-dimethoxyphenyl)methyl-gamma-butyrolactone(2),(+)-Nortrachelogenin(3),2-Hydroxy-2-(4′-O-β-D-glucopyranosyl-3′-hydroxyphenyl)methyl-3-(3″,4″-dimethoxyphenyl)methyl-γ-butyrolactone(4),Nortracheloside(5),Burselignan(6),(+)-Cycloolivil(7),5-Methoxy-(+)-isolariciresinol(8),(-)-Isolariciresinol 3α-O-β-D-glucopyranoside(9),(+)-9-O-β-D-Glucopyranosyl lyoniresinol(10),(-)-Secoisolariciresinol(11),Licarin A(12),Cedrusin(13),Mataires-inol 4′-O-β-D-glucopyranoside(14),Pregomisin(15),Meso-dihydroguaiaretic acid(16),7S,8R-Erythro-4,9,9′-trihydroxy-3,3′-dimethoxy-8-O-4′-neolignan-7-O-β-D-glucopyranoside(17),Gomisin M2(18),Gomisin M3(19),Pinoresinol(20).Com-pounds 1-3,12,15,16,18 and 19 showed cytotoxic activity against A549,HCT116 and SW620 cell lines with IC50 values ranging from 1.4 to 22.9 μmol·L-1.CONCLUSION Compounds 1-4,6-12,14,17-19 are isolated from the plant for the first time,com-pounds 1-3,12,15,16,18 and 19 exhibit cytotoxic activities.

Objective To investigate the correlation between brain iron content and cognitive function in patients with Alzheimer's disease(AD),and to assess the diagnostic value of iron deposition in AD using quantitative susceptibility mapping(QSM)technology.Methods Forty-three patients with AD who visited the Second Affiliated Hospital of Xinjiang Medical University between January 2024 and December 2024,and 42 healthy controls matched for gender and age were enrolled in the study.Comprehensive clinical data were collected from all participants.All subjects underwent brain MRI scans using a Philips Ingenia CX 3.0T magnetic resonance imaging system,including both QSM and conventional cranial MRI sequences.The acquired QSM images were post-processed and normalized using the STISuite software package,and the iron content in predefined regions of interest was quantified using ITK-SNAP.All participants also underwent neuropsychological assessments.Differences in regional brain iron content between AD patients and healthy controls were analyzed and compared.Spearman's correlation coefficient was calculated to evaluate the relationship between iron levels in the frontal cortex,basal ganglia,and hippocampus and cognitive performance.Receiver operating characteristic(ROC)curves were constructed to assess the diagnostic accuracy of iron deposition in differentiating AD patients from healthy controls.Results(1)Compared with the control group,the magnetic susceptibility values in the basal ganglia and hippocampus of the AD group showed statistically significant differences(P<0.01),with higher values observed in the AD group.No statistically significant difference was found in the susceptibility values of the frontal cortex between the AD group and the control group(P>0.05).(2)In the AD group,the susceptibility values of the left caudate nucleus and left hippocampus tail were negatively correlated with the MMSE scores(P<0.05).Additionally,the susceptibility values of the left caudate nucleus,left putamen,left hippocampus,and left hippocampus tail were negatively correlated with the MOCA scores(P<0.05).(3)The area under the curve(AUC)for diagnosing AD based on the left caudate nucleus was 0.758(95%CI:0.649-0.867),for the left putamen it was 0.719(95%CI:0.606-0.831),and for the left hippocampus tail it was 0.640(95%CI:0.518-0.763).Conclusions(1)The iron content in certain brain regions of AD patients is elevated compared to that in healthy controls,particularly in the basal ganglia and hippocampus.(2)The iron concentration in the brains of AD patients,especially in the left caudate nucleus,left putamen,left hippocampus,and hippocampal tail,is negatively correlated with cognitive function.Higher iron levels are associated with more severe cognitive impairment,suggesting that iron accumulation may serve as a potential biomarker for assessing disease severity.(3)Iron deposition in the left caudate nucleus and left putamen demonstrates certain diagnostic value for AD and holds promise as an imaging marker for the auxiliary diagnosis of the disease.

Objective:To analyze the factors influencing postoperative complications and survival in patients undergoing hepatectomy for primary liver cancer (PLC).Methods:Two hundred and eighty-eight patients with PLC who underwent hepatectomy at Tianjin Medical University Cancer Hospital from April 2018 to December 2020 were prospectively enrolled, including 235 males and 53 females, aged (58.5±9.5) years. Nutritional evaluations included the nutritional risk screening 2002 (NRS-2002), patient-generated subjective global assessment (PG-SGA), and physical metrics such as body mass index, handgrip strength, arm circumference, mid-arm muscle circumference (MAMC), and triceps skinfold thickness (TSF). Based on the occurrence of postoperative complications during hospitalization including abdominal infection, bleeding, bile leakage, intra-abdominal fluid accumulation, pulmonary infection, intestinal fistula, and wound dehiscence, patients were divided into two groups: the complication group ( n=205) and the non-complication group ( n=83). Multivariate logistic regression analysis was performed to identify the factors related to postoperative complications, while Cox proportional hazards regression was used to evaluate the impact of various variables on postoperative survival. Survival analysis was conducted using the Kaplan-Meier method, and differences in survival rates were compared using the log-rank test. Results:Compared with the non-complication group, patients in the complication group had a significantly longer postoperative hospital stay [13(8, 16) d vs. 7(5, 9) d], higher proportions of low MAMC [34.1% (24/83) vs. 20.0% (41/205)], lower grip strength [28.9% (24/83) vs. 17.6% (36/205)], higher incidence of intraoperative blood loss ≥200 ml [44.6% (37/83) vs. 22.0% (45/205)], and greater proportion of resection involving ≥3 liver segments [45.8% (38/83) vs. 26.3% (54/205)] (all P<0.05). Multivariate logistic regression analysis identified the low MAMC ( OR=2.01, 95% CI: 1.09-3.71, P=0.025), intraoperative blood loss ≥200 ml ( OR=2.75, 95% CI: 1.55-4.90, P=0.001), and resection involving ≥3 liver segments ( OR=2.02, 95% CI: 1.15-3.55, P=0.015) as independent risk factors for postoperative complications in patients undergoing hepatectomy for PLC. Multivariate Cox regression analysis revealed that low TSF ( HR=1.94, 95% CI: 1.01-3.72, P=0.047), low handgrip strength ( HR=2.23, 95% CI: 1.29-3.88, P=0.004), and resection involving ≥3 liver segments ( HR=1.96, 95% CI: 1.15-3.36, P=0.014) were risk factors associated with poor survival after surgery. Conclusions:Low MAMC, intraoperative blood loss ≥200 ml, and resection involving ≥3 liver segments are risk factors for postoperative complications in patients undergoing hepatectomy for PLC, while low TSF, reduced handgrip strength, and resection involving ≥3 liver segments are predictors of poor postoperative survival.

Objective To investigate the predictive value of serum microRNA(miRNA)-143-3p and miR-188-5p levels for poor prognosis in patients with acute cerebral infarction(ACI)after thrombolysis.Methods From February 2022 to February 2024,121 patients with acute cerebral infarction(ACI)who visited the hospital(all treated with thrombolysis)were selected as the study group.They were assigned into mild and moderate to severe groups based on the severity of their condition.They were into good prognosis group and poor prognosis group based on their postoperative condition.In addition,another 121 healthy individuals who underwent physical check ups during the same period were as the control group.The qRT-PCR method was applied to detect the expression levels of miR-143-3p and miR-188-5p.Pearson correlation was applied to analyze the correlation between serum miR-143-3p,miR-188-5p and NIHSS score.The influencing factors of poor prognosis in ACI patients after throm-bolysis were analyzed using multiple logistic regression.ROC curve was plotted to analyze the predictive value of serum miR-143-3p and miR-188-5p for poor prognosis after thrombolysis in ACI patients.Results The serum miR-143-3p level in the study group was higher than that in the control group(P<0.05),and the miR-188-5p level was lower than that in the control group(P<0.05);The serum miR-143-3p and NIHSS score in the mild,moderate and severe groups were increased in turn,and the level of miR-188-5p was decreased in turn(P<0.05);Serum miR-143-3p was negatively correlated with miR-188-5p(P<0.05);Diabetes,time from onset to throm-bolysis,NIHSS score at admission,miR-143-3p and miR-143-3p were the influencing factors of poor prognosis in ACI patients after thrombolysis;The AUC of the joint of serum miR-143-3p and miR-188-5p in predicting poor prognosis after thrombolysis in ACI patients was 0.871,and the joint of the two was better than their individual predictions(Z=2.683,2.703,P<0.05).Conclusions The level of serum miR-143-3p in ACI patients is significantly increased,and the level of serum miR-188-5p is significantly decreased,which is a poor prognostic factor for ACI patients after thrombolysis.The combination of the two has higher diagnostic value.

Objective:To analyze the factors influencing postoperative complications and survival in patients undergoing hepatectomy for primary liver cancer (PLC).Methods:Two hundred and eighty-eight patients with PLC who underwent hepatectomy at Tianjin Medical University Cancer Hospital from April 2018 to December 2020 were prospectively enrolled, including 235 males and 53 females, aged (58.5±9.5) years. Nutritional evaluations included the nutritional risk screening 2002 (NRS-2002), patient-generated subjective global assessment (PG-SGA), and physical metrics such as body mass index, handgrip strength, arm circumference, mid-arm muscle circumference (MAMC), and triceps skinfold thickness (TSF). Based on the occurrence of postoperative complications during hospitalization including abdominal infection, bleeding, bile leakage, intra-abdominal fluid accumulation, pulmonary infection, intestinal fistula, and wound dehiscence, patients were divided into two groups: the complication group ( n=205) and the non-complication group ( n=83). Multivariate logistic regression analysis was performed to identify the factors related to postoperative complications, while Cox proportional hazards regression was used to evaluate the impact of various variables on postoperative survival. Survival analysis was conducted using the Kaplan-Meier method, and differences in survival rates were compared using the log-rank test. Results:Compared with the non-complication group, patients in the complication group had a significantly longer postoperative hospital stay [13(8, 16) d vs. 7(5, 9) d], higher proportions of low MAMC [34.1% (24/83) vs. 20.0% (41/205)], lower grip strength [28.9% (24/83) vs. 17.6% (36/205)], higher incidence of intraoperative blood loss ≥200 ml [44.6% (37/83) vs. 22.0% (45/205)], and greater proportion of resection involving ≥3 liver segments [45.8% (38/83) vs. 26.3% (54/205)] (all P<0.05). Multivariate logistic regression analysis identified the low MAMC ( OR=2.01, 95% CI: 1.09-3.71, P=0.025), intraoperative blood loss ≥200 ml ( OR=2.75, 95% CI: 1.55-4.90, P=0.001), and resection involving ≥3 liver segments ( OR=2.02, 95% CI: 1.15-3.55, P=0.015) as independent risk factors for postoperative complications in patients undergoing hepatectomy for PLC. Multivariate Cox regression analysis revealed that low TSF ( HR=1.94, 95% CI: 1.01-3.72, P=0.047), low handgrip strength ( HR=2.23, 95% CI: 1.29-3.88, P=0.004), and resection involving ≥3 liver segments ( HR=1.96, 95% CI: 1.15-3.36, P=0.014) were risk factors associated with poor survival after surgery. Conclusions:Low MAMC, intraoperative blood loss ≥200 ml, and resection involving ≥3 liver segments are risk factors for postoperative complications in patients undergoing hepatectomy for PLC, while low TSF, reduced handgrip strength, and resection involving ≥3 liver segments are predictors of poor postoperative survival.

Objective To investigate the correlation between brain iron content and cognitive function in patients with Alzheimer's disease(AD),and to assess the diagnostic value of iron deposition in AD using quantitative susceptibility mapping(QSM)technology.Methods Forty-three patients with AD who visited the Second Affiliated Hospital of Xinjiang Medical University between January 2024 and December 2024,and 42 healthy controls matched for gender and age were enrolled in the study.Comprehensive clinical data were collected from all participants.All subjects underwent brain MRI scans using a Philips Ingenia CX 3.0T magnetic resonance imaging system,including both QSM and conventional cranial MRI sequences.The acquired QSM images were post-processed and normalized using the STISuite software package,and the iron content in predefined regions of interest was quantified using ITK-SNAP.All participants also underwent neuropsychological assessments.Differences in regional brain iron content between AD patients and healthy controls were analyzed and compared.Spearman's correlation coefficient was calculated to evaluate the relationship between iron levels in the frontal cortex,basal ganglia,and hippocampus and cognitive performance.Receiver operating characteristic(ROC)curves were constructed to assess the diagnostic accuracy of iron deposition in differentiating AD patients from healthy controls.Results(1)Compared with the control group,the magnetic susceptibility values in the basal ganglia and hippocampus of the AD group showed statistically significant differences(P<0.01),with higher values observed in the AD group.No statistically significant difference was found in the susceptibility values of the frontal cortex between the AD group and the control group(P>0.05).(2)In the AD group,the susceptibility values of the left caudate nucleus and left hippocampus tail were negatively correlated with the MMSE scores(P<0.05).Additionally,the susceptibility values of the left caudate nucleus,left putamen,left hippocampus,and left hippocampus tail were negatively correlated with the MOCA scores(P<0.05).(3)The area under the curve(AUC)for diagnosing AD based on the left caudate nucleus was 0.758(95%CI:0.649-0.867),for the left putamen it was 0.719(95%CI:0.606-0.831),and for the left hippocampus tail it was 0.640(95%CI:0.518-0.763).Conclusions(1)The iron content in certain brain regions of AD patients is elevated compared to that in healthy controls,particularly in the basal ganglia and hippocampus.(2)The iron concentration in the brains of AD patients,especially in the left caudate nucleus,left putamen,left hippocampus,and hippocampal tail,is negatively correlated with cognitive function.Higher iron levels are associated with more severe cognitive impairment,suggesting that iron accumulation may serve as a potential biomarker for assessing disease severity.(3)Iron deposition in the left caudate nucleus and left putamen demonstrates certain diagnostic value for AD and holds promise as an imaging marker for the auxiliary diagnosis of the disease.

OBJECTIVE To study the chemical constituents in the root bark of Schisandra sphenanthera and their cytotoxic activ-ities.METHODS The compounds were isolated and purified by silica,Sephadex LH-20 and semi preparative-HPLC and the chem-ical structures were identified by 1 H-NMR,13 C-NMR and MS data analysis.The cytotoxic activities of the compounds were deter-mined by MTT method.RESULTS Twenty lignans were isolated and deduced as:Matairesinol(1),2-Hydroxy-2-(3′,4′-di-hydroxyphenyl)methyl-3-(3″,4″-dimethoxyphenyl)methyl-gamma-butyrolactone(2),(+)-Nortrachelogenin(3),2-Hydroxy-2-(4′-O-β-D-glucopyranosyl-3′-hydroxyphenyl)methyl-3-(3″,4″-dimethoxyphenyl)methyl-γ-butyrolactone(4),Nortracheloside(5),Burselignan(6),(+)-Cycloolivil(7),5-Methoxy-(+)-isolariciresinol(8),(-)-Isolariciresinol 3α-O-β-D-glucopyranoside(9),(+)-9-O-β-D-Glucopyranosyl lyoniresinol(10),(-)-Secoisolariciresinol(11),Licarin A(12),Cedrusin(13),Mataires-inol 4′-O-β-D-glucopyranoside(14),Pregomisin(15),Meso-dihydroguaiaretic acid(16),7S,8R-Erythro-4,9,9′-trihydroxy-3,3′-dimethoxy-8-O-4′-neolignan-7-O-β-D-glucopyranoside(17),Gomisin M2(18),Gomisin M3(19),Pinoresinol(20).Com-pounds 1-3,12,15,16,18 and 19 showed cytotoxic activity against A549,HCT116 and SW620 cell lines with IC50 values ranging from 1.4 to 22.9 μmol·L-1.CONCLUSION Compounds 1-4,6-12,14,17-19 are isolated from the plant for the first time,com-pounds 1-3,12,15,16,18 and 19 exhibit cytotoxic activities.

Objective To systematically evaluate the incidence and influencing factors of axillary web syndrome(AWS)in postoperative breast cancer patients,and to provide evidence for reducing the incidence of axillary web syndrome.Methods A computer search was performed in China National Knowledge Infrastructure(CNKI),VIP,Wanfang,SinoMed,PubMed,Medline,Scopus,The Cochrane Library,Web of Science,Embase,searched for articles on AWS influencing factors of breast cancer published from the establishment of the database to January 6th,2025.The articles were screened according to the inclusion and exclusion criteria.Revman5.4 and Stata17.0 were used for systematic review.Results Fifteen studies involving 3979 breast cancer patients and 1 156 patients with AWS were included.The results of the Meta-analysis showed that there was significant statistical heterogeneity among the included studies(I2=97.0%,P<0.0001).Using the random effects model,the incidence of AWS was 32.2%[95%CI(0.24,0.40),P<0.0001].The influencing factors for AWS after breast cancer surgery are age,body mass index(BMI),total mastectomy,lymph node metastasis,and neoadjuvant chemotherapy.NAC),axillary lymph node dissection(ALND),and the number of harvested axillary lymph nodes.Conclusion The incidence of AWS after breast cancer surgery was high.Clinicians should give early nursing to the influencing factors,reduce the incidence of AWS and improve patients'quality of life after surgery.

Objective To systematically evaluate the incidence and influencing factors of axillary web syndrome(AWS)in postoperative breast cancer patients,and to provide evidence for reducing the incidence of axillary web syndrome.Methods A computer search was performed in China National Knowledge Infrastructure(CNKI),VIP,Wanfang,SinoMed,PubMed,Medline,Scopus,The Cochrane Library,Web of Science,Embase,searched for articles on AWS influencing factors of breast cancer published from the establishment of the database to January 6th,2025.The articles were screened according to the inclusion and exclusion criteria.Revman5.4 and Stata17.0 were used for systematic review.Results Fifteen studies involving 3979 breast cancer patients and 1 156 patients with AWS were included.The results of the Meta-analysis showed that there was significant statistical heterogeneity among the included studies(I2=97.0%,P<0.0001).Using the random effects model,the incidence of AWS was 32.2%[95%CI(0.24,0.40),P<0.0001].The influencing factors for AWS after breast cancer surgery are age,body mass index(BMI),total mastectomy,lymph node metastasis,and neoadjuvant chemotherapy.NAC),axillary lymph node dissection(ALND),and the number of harvested axillary lymph nodes.Conclusion The incidence of AWS after breast cancer surgery was high.Clinicians should give early nursing to the influencing factors,reduce the incidence of AWS and improve patients'quality of life after surgery.

Objective To investigate the predictive value of serum microRNA(miRNA)-143-3p and miR-188-5p levels for poor prognosis in patients with acute cerebral infarction(ACI)after thrombolysis.Methods From February 2022 to February 2024,121 patients with acute cerebral infarction(ACI)who visited the hospital(all treated with thrombolysis)were selected as the study group.They were assigned into mild and moderate to severe groups based on the severity of their condition.They were into good prognosis group and poor prognosis group based on their postoperative condition.In addition,another 121 healthy individuals who underwent physical check ups during the same period were as the control group.The qRT-PCR method was applied to detect the expression levels of miR-143-3p and miR-188-5p.Pearson correlation was applied to analyze the correlation between serum miR-143-3p,miR-188-5p and NIHSS score.The influencing factors of poor prognosis in ACI patients after throm-bolysis were analyzed using multiple logistic regression.ROC curve was plotted to analyze the predictive value of serum miR-143-3p and miR-188-5p for poor prognosis after thrombolysis in ACI patients.Results The serum miR-143-3p level in the study group was higher than that in the control group(P<0.05),and the miR-188-5p level was lower than that in the control group(P<0.05);The serum miR-143-3p and NIHSS score in the mild,moderate and severe groups were increased in turn,and the level of miR-188-5p was decreased in turn(P<0.05);Serum miR-143-3p was negatively correlated with miR-188-5p(P<0.05);Diabetes,time from onset to throm-bolysis,NIHSS score at admission,miR-143-3p and miR-143-3p were the influencing factors of poor prognosis in ACI patients after thrombolysis;The AUC of the joint of serum miR-143-3p and miR-188-5p in predicting poor prognosis after thrombolysis in ACI patients was 0.871,and the joint of the two was better than their individual predictions(Z=2.683,2.703,P<0.05).Conclusions The level of serum miR-143-3p in ACI patients is significantly increased,and the level of serum miR-188-5p is significantly decreased,which is a poor prognostic factor for ACI patients after thrombolysis.The combination of the two has higher diagnostic value.