1.Relationship between compression and shape changes of the cerebral cistern ambiens in hypertensive cerebral hemorrhage patients after neural endoscopic intracranial hematoma evacuation and prognosis
Rui LI ; Shaokun HE ; Yunchuan YANG ; Feng GAO ; Biwen SUN ; Shiwei HE ; Yunfei ZHU ; Wenfeng XIAO
China Journal of Endoscopy 2025;31(9):17-28
Objective To explore the relationship between the degree of compression and shape grading of the cerebral cistern ambiens in hypertensive cerebral hemorrhage(HCH)patients after neural endoscopic intracranial hematoma evacuation(NEIHE)and prognosis.Methods 246 HCH patients who underwent NEIHE surgery from January 2020 to June 2023 were selected as the research subjects.According to the postoperative 6 month Glasgow outcome score(GOS),the patients were divided into good prognosis group(n=158)and poor prognosis group(n=88).Hierarchical regression model was used to analyze the relationship between clinical pathological features and the degree of compression and shape grading of the cerebral cistern ambiens.Multivariate logistic regression model was used to analyze the independent risk factors affecting the poor prognosis of patients with HCH after NEIHE,and a prediction model was constructed.Receiver operating characteristic curve(ROC curve)was drawn with poor prognosis as the outcome variable.Area under the curve(AUC),integrated discrimination improvement(IDI)and net reclassification improvement(NRI)of different prediction models were compared.Hosmer-Lemeshow was used to test the goodness of fit.Generalized additive model(GAM)was used to analyze the relationship between GOS and related factors.Results Compared with the good prognosis group,the poor prognosis group had more preoperative blood loss,lower preoperative Glasgow coma score(GCS),and higher proportion of patients with midline deviation,hypertension history ≥10 years,hemorrhage breaking into the brain ventricle,and operation time in the late stage,the differences were statistically significant(P<0.05).Compared with the good prognosis group,the proportions of patients with ipsilateral and contralateral cerebral cistern ambiens compression of 3 to 4 points and the morphological classification of cerebral cistern ambiens of grade V in the poor prognosis group were higher,and the differences were statistically significant(P<0.05).The location of bleeding,midline deviation,and intracranial pressure all had an impact on the degree of compression and morphological grading of the cerebral cistern ambiens,and the differences were statistically significant(P<0.05).Multivariate Logistic regression analysis(model 2:including the degree of compression and shape grading of the cerebral cistern ambiens)showed that midline deviation,history of hypertension ≥10 years,preoperative bleeding volume>37 mL,bleeding into the brain ventricles,preoperative GCS<7 points,late surgical timing,degree of compression of the cerebral cistern ambiens(3 to 4 points on the same side of hematoma,3 to 4 points on the opposite side of hematoma),and grade V morphology were all risk factors influencing the poor prognosis of patients with HCH after NEIHE(P<0.05).After incorporating the degree of compression and morphological grading of the cerebral cistern ambiens into model 1(excluding the degree of compression and shape grading of the cerebral cistern ambiens),the AUC increased to 0.812(95%CI:0.763~0.872),and both the IDI(0.081,95%CI:0.049~0.095)and NRI(0.611,95%CI:0.510~0.674)of the model improved,with statistically significant differences(P<0.05).Compared with model 1,model 2 showed an increase in AUC(0.826,95%CI:0.771~0.863),IDI(0.085,95%CI:0.052~0.110),and NRI(0.628,95%CI:0.510~0.709),with statistically significant differences(P<0.05).The Hosmer-Lemeshow test showed that model 2(P=0.878)had a better fit for predicting poor prognosis than model 1(P=0.691).GAM analysis showed that the higher the degree of compression and morphological grading of the cerebral cistern ambiens,the lower the GOS,and the difference was statistically significant(P<0.05).ROC curve analysis showed that the combined application of degree of compression and morphological grading of the cerebral cistern ambiens had a high predictive value for poor prognosis,with AUC of 0.935(95%CI:0.890~0.971),sensitivity of 70.26%,and specificity of 93.84%.Conclusion The degree of compression and shape changes of the cerebral cistern ambiens in HCH patients after NEIHE are closely related to prognosis,and the combined application has certain predictive value for poor prognosis.The location of bleeding,midline deviation,intracranial pressure,and other factors significantly affect the compression degree and shape change of the cerebral cistern ambiens.
2.Relationship between compression and shape changes of the cerebral cistern ambiens in hypertensive cerebral hemorrhage patients after neural endoscopic intracranial hematoma evacuation and prognosis
Rui LI ; Shaokun HE ; Yunchuan YANG ; Feng GAO ; Biwen SUN ; Shiwei HE ; Yunfei ZHU ; Wenfeng XIAO
China Journal of Endoscopy 2025;31(9):17-28
Objective To explore the relationship between the degree of compression and shape grading of the cerebral cistern ambiens in hypertensive cerebral hemorrhage(HCH)patients after neural endoscopic intracranial hematoma evacuation(NEIHE)and prognosis.Methods 246 HCH patients who underwent NEIHE surgery from January 2020 to June 2023 were selected as the research subjects.According to the postoperative 6 month Glasgow outcome score(GOS),the patients were divided into good prognosis group(n=158)and poor prognosis group(n=88).Hierarchical regression model was used to analyze the relationship between clinical pathological features and the degree of compression and shape grading of the cerebral cistern ambiens.Multivariate logistic regression model was used to analyze the independent risk factors affecting the poor prognosis of patients with HCH after NEIHE,and a prediction model was constructed.Receiver operating characteristic curve(ROC curve)was drawn with poor prognosis as the outcome variable.Area under the curve(AUC),integrated discrimination improvement(IDI)and net reclassification improvement(NRI)of different prediction models were compared.Hosmer-Lemeshow was used to test the goodness of fit.Generalized additive model(GAM)was used to analyze the relationship between GOS and related factors.Results Compared with the good prognosis group,the poor prognosis group had more preoperative blood loss,lower preoperative Glasgow coma score(GCS),and higher proportion of patients with midline deviation,hypertension history ≥10 years,hemorrhage breaking into the brain ventricle,and operation time in the late stage,the differences were statistically significant(P<0.05).Compared with the good prognosis group,the proportions of patients with ipsilateral and contralateral cerebral cistern ambiens compression of 3 to 4 points and the morphological classification of cerebral cistern ambiens of grade V in the poor prognosis group were higher,and the differences were statistically significant(P<0.05).The location of bleeding,midline deviation,and intracranial pressure all had an impact on the degree of compression and morphological grading of the cerebral cistern ambiens,and the differences were statistically significant(P<0.05).Multivariate Logistic regression analysis(model 2:including the degree of compression and shape grading of the cerebral cistern ambiens)showed that midline deviation,history of hypertension ≥10 years,preoperative bleeding volume>37 mL,bleeding into the brain ventricles,preoperative GCS<7 points,late surgical timing,degree of compression of the cerebral cistern ambiens(3 to 4 points on the same side of hematoma,3 to 4 points on the opposite side of hematoma),and grade V morphology were all risk factors influencing the poor prognosis of patients with HCH after NEIHE(P<0.05).After incorporating the degree of compression and morphological grading of the cerebral cistern ambiens into model 1(excluding the degree of compression and shape grading of the cerebral cistern ambiens),the AUC increased to 0.812(95%CI:0.763~0.872),and both the IDI(0.081,95%CI:0.049~0.095)and NRI(0.611,95%CI:0.510~0.674)of the model improved,with statistically significant differences(P<0.05).Compared with model 1,model 2 showed an increase in AUC(0.826,95%CI:0.771~0.863),IDI(0.085,95%CI:0.052~0.110),and NRI(0.628,95%CI:0.510~0.709),with statistically significant differences(P<0.05).The Hosmer-Lemeshow test showed that model 2(P=0.878)had a better fit for predicting poor prognosis than model 1(P=0.691).GAM analysis showed that the higher the degree of compression and morphological grading of the cerebral cistern ambiens,the lower the GOS,and the difference was statistically significant(P<0.05).ROC curve analysis showed that the combined application of degree of compression and morphological grading of the cerebral cistern ambiens had a high predictive value for poor prognosis,with AUC of 0.935(95%CI:0.890~0.971),sensitivity of 70.26%,and specificity of 93.84%.Conclusion The degree of compression and shape changes of the cerebral cistern ambiens in HCH patients after NEIHE are closely related to prognosis,and the combined application has certain predictive value for poor prognosis.The location of bleeding,midline deviation,intracranial pressure,and other factors significantly affect the compression degree and shape change of the cerebral cistern ambiens.
3.Comparative analysis of therapeutic effects between interstitial brachytherapy and particle implantation in the treatment of pelvic lymph nodes
Hongling LU ; Yunchuan SUN ; Yan GAO ; Jianxi ZHOU ; Li XIAO ; Xiaoming YIN ; Wei GUO ; Wei LIANG
Chinese Journal of Radiation Oncology 2024;33(5):432-437
Objective:To compare the safety and efficacy of high-dose- rate interstitial brachytherapy and particle implantation radiotherapy in the treatment of lymph nodes with pelvic metastases in the field after external radiotherapy.Methods:Clinical data of 42 patients with residual or newly metastatic pelvic lymph nodes after radiotherapy at Cangzhou Integrated Traditional Chinese and Western Medicine Hospital who met the inclusion criteria from January 2017 to April 2020 were retrospectively analyzed. Among them, 12 patients were male and 30 females, aged 39-82 years, (61.6±9.64) years on average. According to the treatment method, all patients were divided into the high-dose-rate interstitial brachytherapy group ( n=18) and particle implantation radiotherapy group ( n=24). During 3-year follow-up, the local control rate (LCR), incidence of complications and overall survival (OS) were compared between two groups. Age and operation time conforming to normal distribution were analyzed by t-test. The remaining indexes were analyzed by the Chi-square test or Fisher's exact test. The OS and LCR were calculated by Kaplan-Meier method. Results:There was no significant difference in baseline data between two groups (all P>0.05). The operation time in the high-dose- rate interstitial brachytherapy group was longer than that in the particle implantation radiotherapy group [(66.39±11.07) : (45.75±9.19) min, P<0.001]. During subsequent follow-up, there was no significant difference in the LCR between two groups (1-year LCR 88.9% vs. 87.5%, P=0.927; 2-year LCR 72.2% vs. 62.5%, P=0.874). There was no significant difference in the median OS between two groups (31.6 vs. 29.8 months, P=0.798). There was no significant difference in the incidence of early complications between two groups [ (4/18) vs. 5/24 (20.8%), P=1.000]. No late complications observed. Conclusion:High-dose- rate interstitial brachytherapy yields equivalent efficacy and safety to particle implantation radiotherapy in the treatment of lymph nodes with pelvic metastases.
4.Prognosis and risk factors of brain metastases from limited-stage small cell lung cancer after complete resection
Jianxi ZHOU ; Yunchuan SUN ; Li XIAO ; Hongling LU ; Xiaoming YIN
Chinese Journal of Radiation Oncology 2023;32(3):207-214
Objective:To analyze the prognosis and risk factors for brain metastases (BM) in patients with limited-stage small cell lung cancer (LS-SCLC) after complete resection, aiming to identify those most likely to benefit from prophylactic cranial irradiation (PCI).Methods:Clinical data of 94 patients with LS-SCLC treated in Cangzhou Integrated Traditional Chinese and Western Medicine Hospital from January 2005 to December 2018 who underwent complete resection were retrospectively analyzed, including 31 cases treated with PCI and 63 without PCI. Prognostic factors and risk factors of BM were analyzed by Kaplan-Meier method. The differences between two groups were analyzed by log-rank test. Independent risk factors of overall survival (OS) and BM were assessed by multivariate Cox regression model.Results:The 2-year and 5-year OS rates were 80.6% and 61.3% in the PCI group, and 61.9% and 46.0% in the non-PCI group, respectively ( P=0.001). The 2-year and 5-year brain metastasis-free survival (BMFS) rates were 80.6% and 54.8% in the PCI group, and 57.1% and 42.9% in the non-PCI group, respectively ( P=0.045). The 2-year and 5-year progression-free survival (PFS) rates were 71.0% and 48.4% in the PCI group, and 49.2% and 34.9% in the non-PCI group, respectively ( P=0.016). PCI could improve OS in patients with pII/III stage LS-SCLC ( P=0.039, P=0.013), but the OS benefit in patients with pI stage LS-SCLC was not significant ( P=0.167). BM occurred in 3 patients (9.7%) in the PCI group, which was significantly lower than that in the non-PCI group ( n=17, 27.0%; P=0.044); there was no significant difference in the BM rate of patients with pI and pII stage LS-SCLC between PCI and non-PCI groups ( P=0.285, P=0.468); and the BM rate of patients with pIII stage LS-SCLC in the PCI group was significantly lower than that in the non-PCI group ( P=0.041). Multivariate analysis showed age ≥60 ( HR=2.803, P=0.001), BM ( HR=2.239, P=0.022), no PCI ( HR=0.341, P=0.004) and pathological stage pII/III ( HR=4.963, P=0.002) were the independent high-risk factors affecting OS; and pathological stage pII/III ( HR=11.665, P=0.007) was an independent high-risk factor affecting BM. Conclusions:LS-SCLC patients with pII-III stage have a higher risk of developing BM and poor prognosis after complete resection, and should receive PCI treatment. However, LS-SCLC patients with pI stage may not benefit significantly.
5.Application of 192Ir brachytherapy combined with external beam radiation and biliary stent in the treatment of unresectable hilar cholangiocarcinoma
Wenbo YANG ; Li XIAO ; Jianqiang BI ; Yunchuan SUN
Journal of International Oncology 2022;49(2):95-99
Objective:To evaluate the efficacy and safety of 192Ir brachytherapy combined with external beam radiation for the treatment of unresectable hilar cholangiocarcinoma. Methods:The clinical data of 26 patients with unresectable hilar cholangiocarcinoma admitted to Hebei Province Cangzhou Hospital of Integrated Traditional and Western Medicine from February 2016 to July 2018 were retrospectively analyzed. All patients received 192Ir brachytherapy combined with external beam radiation. First, percutaneous hepatobiliary stent implantation was given, followed by external beam radiotherapy (radiotherapy dose 45 Gy, 25 times), and then 192Ir brachytherapy (radiotherapy dose 20 Gy, 4 times), a total of 4 to 6 cycles of chemotherapy. The short-term and long-term efficacy were evaluated, and the Karnofsky performance status (KPS) score, CA19-9, total bilirubin (TBIL), direct bilirubin (DBIL), alanine aminotransferase (ALT), aspartate aminotransferase (AST) level changes and percutaneous transhepatic biliary drainage (PTCD) tube indwelling time were analyzed. Adverse reactions were recorded according to the Radiation Therapy Oncology Group (RTOG) injury classification standard. Results:Three months after the end of treatment, 4 cases (15.4%) were completely remitted, 20 cases (76.9%) were partially remitted, 2 cases (7.7%) were stable, and there was no disease progression. The objective remission rate was 92.3% (24/26). The 1-year and 2-year local control rates were 75.0% and 62.5% respectively, and the 1-year and 2-year overall survival rates were 57.7% and 26.9% respectively. The KPS score was 70.39±10.76 one month after the treatment, which was significantly higher than the 60.00±10.58 before treatment ( t=-27.00, P<0.001). The levels of CA19-9 before treatment and 1 month, 2 months and 3 months after treatment were (390.88±202.62) U/ml, (322.45±204.06) U/ml, (254.00±160.49) U/ml, (182.85±124.05) U/ml, which showed a gradual decrease trend, and there was a statistically significant difference ( F=126.94, P<0.001). TBIL [(250.88±80.83) μmol/L, (153.98±61.74) μmol/L, (93.45±38.12) μmol/L, (53.82±26.75) μmol/L], DBIL [(205.82±66.68) μmol/L, (133.23±58.53) μmol/L, (64.31±36.25) μmol/L, (40.55±26.16) μmol/L], ALT [(163.92±54.12) U/L, (68.23±28.86) U/L, (45.73±21.94) U/L, (32.66±12.88) U/L], AST [(177.69±58.68) U/L, (79.23±32.87) U/L, (49.77±25.45) U/L, (35.54±16.10) U/L] showed progressive decline, with statistically significant differences ( F=315.60, P<0.001; F=385.30, P<0.001; F=284.24, P<0.001; F=311.80, P<0.001), and liver function was improved. The PTCD tube was removed after treatment in all patients, with a median time of 54 days (49-96 days). During the treatment, bone marrow suppression, nausea and vomiting, abdominal pain and biliary tract infection occurred. All of them improved after symptomatic treatment. No serious complications such as bile leakage and biliary hemorrhage occurred. Conclusion:192Ir brachytherapy combined with external beam radiation has a reliable curative effect in the treatment of unresectable hilar cholangiocarcinoma. It can improve the quality of life of patients, and the adverse reactions can be tolerated. It provides a feasible and safe treatment method for the clinic.
6.Application of 192Ir brachytherapy in locally recurrent non-small cell lung cancer
Hongling LU ; Yunchuan SUN ; Li XIAO ; Xinying HE ; Jianqiang BI ; Rujing HUANG ; Tingting HU ; Xiaoming YIN ; Wei GUO ; Hongjuan YANG ; Wenbo YANG ; Junjie WANG
Chinese Journal of Radiation Oncology 2021;30(8):775-779
Objective:To evaluate the clinical efficacy and adverse events of 192Ir high-dose rate brachytherapy (HDR-BT) in the treatment of locally recurrent non-small cell lung cancer (NSCLC). Methods:Clinical data of 22 cases of recurrent NSCLC after radiotherapy admitted to our hospital from September 2013 to March 2018 were retrospectively analyzed. 192Ir HDR-BT was adopted for reradiotherapy. The prescription dose was 30Gy for 1 fraction. CT scan was reviewed every 1 month in the first 3 months after treatment and every 3 months after 3 months. Local control rate and adverse events were evaluated. The 1-and 2-year overall survival (OS) rates of re-treatment after relapse were calculated. Results:All the 22 patients completed the treatment successfully. The 1-, 3-and 6-month complete response (CR) rates were 9%, 14% and 14%, 82%, 82% and 82% for the partial response (PR) rates, 5%, 0% and 0% for the stable disease (SD) rates, 5%, 5% and 5% for the progressive disease (PD) rates, 91%, 96% and 96% for the objective response rates (ORR), respectively. The 1-and 2-year OS rates of re-treatment after relapse were 59% and 27%. Five patients (23%) experienced acute radiation-induced pneumonitis (3 cases of grade 1 and 2 cases of grade Ⅱ), 4 cases (18%) of radiation-induced bone marrow suppression (3 cases of grade I leukopenia and 1 case of grade I thrombocytopenia) and 1 case of postoperative pneumothorax. All these adverse events were mitigated after symptomatic treatment.Conclusion:192Ir HDR-BT is an efficacious and safe treatment of locally recurrent NSCLC.
7.Clinical application of 3D template-assisted brachytherapy in para-iliac lymph node metastasis
Hongling LU ; Yunchuan SUN ; Li XIAO ; Xiaoming YIN ; Wei GUO ; Hongjuan YANG ; Jianxi ZHOU
Chinese Journal of Radiation Oncology 2021;30(10):1036-1040
Objective:To preliminarily evaluate the safety and efficacy of 3D printing template-assisted brachytherapy in the treatment of solitary metastatic lymph nodes adjacent to iliac vessels.Methods:Clinical data of 12 cases of para-iliac lymph node metastasis after radiotherapy admitted to our hospital from October 2018 to April 2020 were retrospectively analyzed. All patients received 3D printing template-assisted brachytherapy at a prescription dose of 20-30 Gy/fraction. CT scan was reviewed every 1 month in the first 3 months after treatment and every 3 months at 3 months after treatment.Local control rate, symptom relief rate and adverse events were evaluated.Results:All the 12 patients successfully completed the treatment and follow-up. At 1, 3 and 6 months after 3D printing template-assisted brachytherapy, 2, 2 and 3 patients obtained complete remission of lymph nodes, 9, 8 and 8 cases of partial remission, 1 case of stable disease and no case of disease progression. The symptoms were relieved in 10 patients. Acute radiation enteritis occurred in 2 patients and myelosuppression in 2 patients, which were mitigated after symptomatic treatment.Conclusion:3D printing template-assisted brachytherapy may be an efficacious and safe treatment of para-iliac lymph node metastasis, which yields tolerable adverse events.
8.Clinical application of 192Ir three-dimensional brachytherapy combined with intensity-modulated radiotherapy in advanced extrahepatic cholangiocarcinoma
Fei LIU ; Yunchuan SUN ; Li XIAO ; Jianqiang BI
Chinese Journal of Radiological Medicine and Protection 2021;41(1):46-49
Objective:To explore the efficacy and safety of 192Ir three-dimensional brachytherapy combined with intensity-modulated radiotherapy in patients with unresectable advanced obstructive extrahepatic cholangiocarcinoma. Methods:A retrospective analysis of the efficacy and safety of 18 patients with unresectable advanced malignant obstructive extrahepatic cholangiocarcinoma admitted to the Cangzhou Hospital of Integrated Traditional Chinese and Western Medicine in Hebei province from January 2014 to January 2018.All patients were pathologically confirmed and received biliary stent implantation, followed by sequential intensity-modulated radiotherapy and 192Ir three-dimensional brachytherapy.The clinical data of all patients were collected, including gender, age, clinical stage, adverse reactions, brachytherapy dose-volume parameters, changes in bilirubin levels before and after treatment, evaluation of efficacy, local control rate and survival rate. Results:All patients successfully completed the treatment.Re-examination was conducted one month after the combined treatment, of the 18 patients, 16 had partial remission (PR) and 2 were stable(SD). Among them, 14 patients had tumor shrinkage after brachytherapy compared with intensity-modulated radiotherapy, and 4 patients showed no significant change.The 6-month local control rate (LC) was 94.4% (17/18). The 1-year survival rate was 55.6% (10/18), and the 2-year survival rate was 38.9% (7/18). Statistical analysis showed that after combined treatment, total bilirubin and direct bilirubin were significantly reduced, and jaundice symptoms were significantly relieved.The adverse reactions of the patient were nausea, vomiting, fever, biliary tract infection, etc.There were no adverse reactions of grade 3 or above.Conclusions:192Ir three-dimensional brachytherapy combined with intensity-modulated radiotherapy in patients with inoperable advanced extrahepatic cholangiocarcinoma has a good local control rate and tolerable adverse reactions, but the impact on long-term survival requires a large sample of controlled studies.
9. Preliminary application of 192Ir high-dose rate brachytherapy in postoperative recurrent colorectal cancer with intrapulmonary oligometastases
Xiaoming YIN ; Yunchuan SUN ; Tingting HU ; Xinying HE ; Jianqiang BI ; Li XIAO ; Rujing HUANG ; Hongling LU ; Junjie WANG
Chinese Journal of Radiological Medicine and Protection 2019;39(11):833-836
Objective:
To investigate the efficacy and feasibility of 192Ir high-dose rate brachytherapy for recurrent intrapulmonary oligometastasis after colorectal cancer surgery.
Methods:
Patients from May 2013 to October 2017 with intrapulmonary oligometastasisafter colorectal cancer surgery in Cangzhou Integrated Traditional Chinese and Western Medicine Hospital were enrolled. A total of 15 lesions were obtained from 10 patients, which were treated with CT-guided high dose rate of 192Ir. The implant needles were inserted into the tumor and were adjusted to appropriate positions under the guidance of CT. Then the images after transplanting were uploaded to the planning system to delineate the target area and the organ at risk volume. Patients underwent a single radiation dose of 20 Gy.
Results:
All 10 patients were successfully treated. Grade 1 adverse events were observed for 30% of patients. Of the 10 patients, one patient had a mild cough, and two had bloody sputum. There was no serious adverse events occurred. The local control rate (LC) of the patients at 1 year after treatment was achieved in 93.3%. Only one developed local advancement after six months, who received the secondary brachytherapy. The median progression-free survival(PFS) was 8.5 months and the median overall survival(OS) was 14.7 months.
Conclusions
High dose rate brachytherapy is effective in terms of recurrent lung metastases after surgery for colorectal cancer, with a moderate rate of adverse reactions and a favorable local tumor control rate.
10.Study on flavonoid chemical constituents contained in Memorialis hirta.
Jun LEI ; Yunchuan XIAO ; Wenjing WANG ; Zhen XI ; Miao LIU ; Jian RAN ; Jing HUANG
China Journal of Chinese Materia Medica 2012;37(4):478-482
OBJECTIVETo study the chemical constituents of Memorialis hirta.
METHODCompounds were isolated and purified by multiple methods, and their structures were identified based on physicochemical property and spectrum data.
RESULT12 compounds were isolated from ethyl acetate from 95% ethanol extracts of M. hirta, they were isorhamnetin (1), kaempferol (2), quercetin (3), isorhamnetin-3-O-alpha-L-rhamnopyranoside (4), kaempferol-3-O-alpha-L-rhamnopyranoside (5), isorhamnetin-3-O-beta-D-glucopyranoside (6), kaempferol-3-O-beta-D-glucopyranoside (7), quercetin-3-O-alpha-L-rhamnopyranoside (8), quercetin-3-O-beta-D-glucopyranoside (9), isorhamnetin-3-O-rutinoside (10), kaempferol-3-O-rutinoside (11) and quercetin-3-O-rutinoside (12), respectively.
CONCLUSIONAll compounds were obtained from the genus Memorialis for the first time.
Drugs, Chinese Herbal ; chemistry ; Flavonoids ; analysis ; isolation & purification ; Urticaceae ; chemistry

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