1.Regulatory effect of autophagy on the resistance of human liver cancer cell Huh7 to lenvatinib
Dahong CHEN ; Yafei WU ; Wenjing DIAO ; Huihua YANG ; Pengjuan MAO ; Qin LI
China Pharmacy 2024;35(8):961-966
OBJECTIVE To investigate the regulatory effect of autophagy on the resistance of human liver cancer cell Huh7 to lenvatinib. METHODS Using human liver cancer cell Huh7 as subject, the lenvatinib-resist cell model (Huh7-LR) was generated by the low-dose gradient method combined with long-term administration. The sensitivity of parental cell Huh7 and drug-resistant cell Huh7-LR to lenvatinib was detected by using CCK-8 assay and flow cytometry. Western blot assay and GFP-mCherry-LC3 plasmid transfection were performed to detect the expression levels of autophagic protein Beclin-1, autophagic adapter protein sequestosome 1 (p62), microtubule-associated protein 1 light chain 3 (LC3) and autophagic level. Furthermore, an autophagy activation model was constructed by cell starvation, the protein expression of p62 and autophagy level were detected by using Western blot assay and GFP-mCherry-LC3 plasmid transfection, and the effect of autophagy activation on the sensitivity of Huh7-LR cells to lenvatinib was detected by flow cytometry. RESULTS Compared with parental cells, the drug resistance index of Huh7-LR cells was 6.2; protein expression of p62 was increased significantly, while apoptotic rate, protein expression of Beclin-1 and LC3Ⅱ/ LC3Ⅰ ratio were all reduced significantly (P<0.05 or P<0.01); the level of autophagy was decreased to some extent. Autophagy activation could significantly increase the protein expression of p62 in Huh7-LR cells (P<0.05) and autophagy level, and significantly increase its apoptotic rate (P<0.05). CONCLUSIONS Autophagy is involved in lenvatinib resistance, and activating autophagy can reverse the resistance of liver cancer cells to lenvatinib to some extent.
2.Super selective renal artery embolization-assisted partial nephrectomy for T1 stage renal carcinoma:a clinical study
Weili PENG ; Hanbo LIU ; Jiamei QIU ; Jiaqi ZHANG ; Yan XIA ; Yang LIU ; Feng LIU ; Qijun WO ; Dahong ZHANG ; Jun CHEN
Journal of Interventional Radiology 2024;33(11):1192-1196
Objective To discuss the clinical application value of super selective renal artery embolization-assisted(SRAE-assisted)laparoscopic partial nephrectomy(LPN).Methods A retrospective analysis of the clinical data of patients with stage T1 renal carcinoma,who received LPN,was conducted.The patients were divided into SRAE group(performing LPN without adopting renal hilum vascular clamping)and VC group(performing LPN with adopting renal hilum vascular clamping).The time spent for operation,amount of intraoperative blood loss,and preoperative and postoperative renal functions were compared between the two groups.According to the warm ischemia time(WIT),the patients of the VC group were subdivided into WIT<25 min subgroup and WIT≥25 min subgroup,and the preoperative and postoperative renal functions were compared between the two subgroups.Results A total of 59 patients with renal carcinoma were enrolled in this study,including 12 patients in SRAE group and 47 patients in VC group.In VC group,WIT<25 min subgroup had 33 patients and WIT≥25 min subgroup had 14 patients.In both SRAE group and VC group,no patient was referred to open surgery or total nephrectomy.No patient in SRAE group was referred to traditional LPN.The time spent for operation in SRAE group and VC group was 100.50(73.75,132.50)min and 120.00(90.00,145.00)min respectively,the difference between the two groups was not statistically significant(P>0.05).The postoperative estimated glomerular filtration rate(eGFR)in SRAE group was 100.56(82.85,106.81),which was remarkably higher than 84.66(70.84,94.85)in VC group(P<0.05).The postoperative serum creatinine level in VC group was 90.50(77.10,104.90)μmol/L,which was strikingly higher than 72.24(65.97,80.27)μmol/L in SRAE group(P<0.05).The amount of intraoperative blood loss in SRAE group was 50(50,50)mL,which was lower than 50(50,100)mL in VC group(P<0.05).In VC group,the postoperative eGFR in WIT≥25 min subgroup was 66.13(47.08,82.50),which was lower than 90.80(77.18,98.78)in WIT<25 min subgroup(P<0.05).During the postoperative one-year follow-up,no recurrence was observed in both groups.Conclusion Compared with traditional LPN,SRAE-assisted LPN doesn't need to obstruct the renal hilus during surgery,which can avoid the ischemic impairment of the residual renal function and reduce the amount of intraoperative blood loss,moreover,it doesn't increase the operation time,doesn't increase the incidence of complications such as postoperative bleeding,etc.and doesn't affect the curative efficacy and patient's prognosis.
3.Analysis in risk factors of clinical inertia in treatment of patients with type 2 diabetes mellitus in suburbs of Shanghai
Tingting GUI ; Xiaoyi LU ; Qian LI ; Jia CHEN ; Yuanyuan XIAO ; Dahong ZHAI
Journal of Clinical Medicine in Practice 2024;28(23):121-125
Objective To explore the current status of clinical inertia in the treatment of patients with type 2 diabetes mellitus (T2DM) in the suburbs of Shanghai and analyze its risk factors. Methods A total of 1, 804 T2DM patients who visited the Endocrinology and Metabolism Clinic of Shanghai Sixth People's Hospital from November 2022 to November 2023 were selected as research objects. Patients were divided into clinical inertia group and non-clinical inertia group based on whether clinical inertia occurred during their treatment, and demographic and clinical data were collected. Logistic regression analysis was used to identify risk factors for clinical inertia in the treatment of T2DM patients. Results The incidence of clinical inertia in T2DM patients was 52.00% (938/1, 804). The results of multivariate Logistic regression analysis showed that longer diabetes duration, high level of glycated hemoglobin (HbA1c), high score of the Problem Areas in Diabetes Scale(PAID) score, taking over two oral medications, shorter life expectancy, and coexisting retinopathy were risk factors for clinical inertia in the treatment of T2DM patients (
4.The safety and efficacy of radiofrequency in the treatment of overactive bladder
Yunbei YANG ; Yuda YU ; Huiping YE ; Zhiliang WENG ; Haihong JIANG ; Hang HUANG ; Haiyan LI ; Xiangxiang YE ; Gonghui LI ; Yanlan YU ; Zhenghui WANG ; Yicheng CHEN ; Dahong ZHANG ; Zhihui XU
Chinese Journal of Urology 2023;44(1):37-41
Objective:To explore the safety and efficacy of radiofrequency in the treatment of overactive bladder(OAB).Methods:A prospective, multicenter, non-randomized controlled trial was conducted. Eligible patients were divided into test group and control group in Zhejiang Provincial People’Hospital, The First Affiliated Hospital of Wenzhou Medical University, and Sir Run Run Shaw Hospital affiliated to Zhejiang University School of Medicine from March 2019 to June 2020. Inclusion criteria: patients diagnosed with OAB, and bladder capacity>100ml. Exclusion criteria: pregnant and lactating women; patients with secondary OAB symptoms such as urinary tract obstruction; patients with uncontrolled urinary tract infection within 1 week; patients in stable stage by using other treatment methods; patients implanted with any nerve stimulator, cardiac pacemaker or implantable defibrillator; patients with malignant tumors, serious cardiovascular, cerebrovascular diseases, renal insufficiency or received BTX treatment in recent 12 months. The patients were allocated to test group and the control group in a ratio of 2∶1 according to the time sequence of the visit. The patients in the test group were treated with radiofrequency treatment. After entering the group, they were treated for 4 times at the 1st, 2nd, 7th and 8th week respectively. In the control group, the energy was turned off during the radiofrequency treatment. The patients were followed-up every week until the end of the 12th week. The treatment success rate [the average frequency of urination in 24 h was reduced more than 50% from the baseline or returned to the normal (≤8 times/day) or the average frequency of urgent urination in 24 h was reduced more than 50% from the baseline], the frequency of urination, urgent urination and nocturnal urination before and after treatment, the residual urine volume of the bladder, the quality of life (QOL) score and the occurrence of catheter related adverse events in two groups were compared.Results:114 patients were enrolled in the study, including 76 patients in the test group and 38 patients in the control group. There were no significant differences in the age [(44.2±12.8) vs. (41.7 ± 12.1) years old], male female ratio (13/63 vs. 4/34), average course of disease [2.0(1.2, 5.0) vs. 2.0 (1.0, 4.0) years], the frequency of urination[12.8 (10.6, 16.8) vs. 12.8 (10.3, 17.0) times], urgency urination [11.8(9.3, 15.8) vs. 11.8 (9.0, 17.0) times], nocturia [2.7 (1.3, 3.7) vs. 2.3(0.7, 3.3) times], residual urine volume of bladder [12.0 (3.0, 28.0) vs. 14.0 (3.7, 20.0) ml ] and the QOL score [5.0(4.0, 5.0) vs. 4.0(4.0, 5.0)]before the treatment between the two groups ( P>0.05). The treatment success rate in the test group was 76.3% (58/76), while 26.3% (10/38) in the control group, with a statistically significant difference ( P<0.01). There were significant differences between the test group and control group in the frequency of urination [9.7 (7.7, 12.0) vs. 12.9 (9.6, 15.7) times], urgent urination [7.3 (5.0, 10.0) vs. 11.7 (7.3, 15.3) times], nocturia [1.3 (0.7, 2.0) vs. 1.7 (1.0, 3.0) times] and the QOL score of the patients[3.0(1.0, 3.0) vs. 4.0(3.0, 4.5)]after the treatment(all P<0.05). The frequency of urination, urgency urination, nocturia, the residual urine volume and the QOL score in the test group were significantly improved ( P<0.05) after the treatment.The frequency of urination, nocturia, residual urine volume and the QOL score in the control group were improved ( P<0.05) after the treatment. 13 (11.4%) patients had catheter related adverse events. In the test group and the control group, there were 7 cases of macroscopic hemorrhage caused by the placement of instruments (5/76 vs. 2/38), 5 cases of acute urinary tract infection within 3 days (3/76 vs. 2/38), and 1 case of instrument breakage (catheter breakage) (0/76 vs. 1/38). There were no significant differences in the adverse events between the two groups ( P> 0.05). Conclusions:Radiofrequency treatment of OAB can effectively improve the symptoms of patients, improve the QOL of patients, and has low incidence of adverse events, with good efficacy and safety.
5.Research progress in pharmacological effects of Aralia elata.
Dahong HE ; Linghui ZENG ; Peng CHEN
Journal of Zhejiang University. Medical sciences 2023;52(5):616-626
The traditional Chinese medicine Aralia elata (Miq.) Seem., also known as Aralia mandshurica, has the effect of "tonifying Qi and calming the mind, strengthening the essence and tonifying the kidneys, and dispelling wind and invigorating blood circulation". It is used in the treatment of neurasthenia, Yang deficiency and Qi deficiency, kidney Qi deficiency, spleen Yang deficiency, water-dampness stagnation, thirst, and bruises. Aralia elata saponins are the main components for the pharmacological effects. From the perspective of modern pharmacological science, Aralia elata has a wide range of effects, including anti-myocardial ischaemia and alleviation of secondary myocardium ischemic reperfusion injury by regulating ionic homeostasis, anti-tumor activity by inhibiting proliferation, promoting apoptosis and enhancing immunity, hypoglycemia and lipid lowering effects by regulating glucose and lipid metabolism, and hepato-protective, neuroprotective, anti-inflammatory/analgesic effects. The studies on pharmacological mechanisms of Aralia elata will be conducive to its development and application in the future. This article reviews the research progress of Aralia elata domestically and internationally in the last two decades and proposes new directions for further research.
Aralia
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Yang Deficiency
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Apoptosis
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Saponins/pharmacology*
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Myocardial Ischemia
6.Molecular glues modulate protein functions by inducing protein aggregation: A promising therapeutic strategy of small molecules for disease treatment.
Hongyu WU ; Hong YAO ; Chen HE ; Yilin JIA ; Zheying ZHU ; Shengtao XU ; Dahong LI ; Jinyi XU
Acta Pharmaceutica Sinica B 2022;12(9):3548-3566
Molecular glues can specifically induce aggregation between two or more proteins to modulate biological functions. In recent years, molecular glues have been widely used as protein degraders. In addition, however, molecular glues play a variety of vital roles, such as complex stabilization, interactome modulation and transporter inhibition, enabling challenging therapeutic targets to be druggable and offering an exciting novel approach for drug discovery. Since most molecular glues are identified serendipitously, exploration of their systematic discovery and rational design are important. In this review, representative examples of molecular glues with various physiological functions are divided into those mediating homo-dimerization, homo-polymerization and hetero-dimerization according to their aggregation modes, and we attempt to elucidate their mechanisms of action. In particular, we aim to highlight some biochemical techniques typically exploited within these representative studies and classify them in terms of three stages of molecular glue development: starting point, optimization and identification.
7.Study on the mechanism of G 6PD-induced sorafenib -resistance in hepatocarcinoma cell by activating PI 3K/Akt signaling pathway
Huihua YANG ; Dahong CHEN ; Wenjing DIAO ; Yafei WU ; Qin LI ; Gaolin LIU
China Pharmacy 2022;33(19):2338-2342
OBJECTIVE To investigate the mechanism of glucose -6-phosphate dehydrogenase (G6PD)-induced sorafenib - resistance in hepatocarcinoma cell based on phoshorylated 3-kinase/protein kinase B (PI3K/Akt)signaling pathway . METHODS Cell lines including hepatocarcinoma cell Huh 7,sorafenib-resistant cell Huh 7-SR,G6PD overexpressed cell Huh 7-G6PD and its control cell Huh 7-CT,and compounds including G 6PD inhibitor (6-Aminonicotinamide,6AN)and sorafenib were used as objects or intervention drugs in these research . CCK8 assay was applied to evaluate cell viability . The protein levels of G 6PD and the phosphorylation levels of PI 3K/Akt signaling pathway were detected by Western blot . Flow cytometry was utilized to investigate cell apoptosis. RESULTS Compared with Huh 7 cells,the protein level of G 6PD was significantly increased in Huh 7-SR cells (P< 0.05). The combination of 6AN and sorafenib reduced cell viability of Huh 7-SR cells (P<0.01). However,compared with Huh 7- CT,increased cell viability and decreased cell apoptosis rate were observed in Huh 7-G6PD cells while cells were treated with sorafenib(P<0.01). Mechanistically,the phosphorylation levels of PI 3K and Akt were significantly decreased in Huh 7-SR cells that were treated with 6AN(P<0.05). Moreover,under the condition of no drug intervention ,the phosphorylation levels of PI 3K and Akt were significantly elevated in Huh 7-G6PD cells when compared with Huh 7-CT(P<0.01). CONCLUSION G6PD could induce sorafenib -resistance in hepatocarcinoma cell by activating PI 3K/Akt signaling pathway .
8.Efficacy comparison of robot-assisted partial nephrectomy and laparoscopic partial nephrectomy in the treatment of giant renal angiomyolipoma
Fei WEI ; Xinpeng CHEN ; Shuai WANG ; Dahong ZHANG
Chinese Journal of Urology 2022;43(1):5-9
Objective:To evaluate the efficacy of robot-assisted partial nephrectomy (RAPN)and laparoscopic partial nephrectomy(LPN)in the treatment of giant (>7cm) renal angiomyolipoma (RAML).Methods:The clinical data of 43 patients with giant RAML(>7cm) who underwent surgery in Zhejiang People's Hospital from October 2014 to May 2020 was retrospectively analysed, including 23 routine RAPN and 20 routine LPN. The median age of patients in the RAPN group was 45(17-65) years old, with 4 males and 19 females.The median body mass index(BMI) was 20.3(18.0-25.7) kg/m 2. Tumors located on the left side in 11 cases and on the right side in 12 cases. Tumors located on upper pole in 9 cases, middle pole in 5 cases , lower pole in 5 cases. The median R. E.N.A.L. score was 8(4-12) points and the largest tumor diameter was 7.5(7.1-17.0) cm. The median age of patients in the LPN group was 53(27-78) years old, with 1 males and 19 females. The median BMI was 21.4(19.0-25.5) kg/m 2. Tumors located on the left side in 9 cases and right side in 11 cases. Tumors located on the upper pole in 7 cases, middle pole in 4 cases and lower pole in 5 cases. 4 cases were multiple tumors, 2 cases were bilateral, and 2 cases were unilateral. The median R. E.N.A.L. score was 8(4-12) points and the median maximum diameter of tumor was 7.3(7.0-20.0) cm. There was no statistically significant difference in general information between the two groups ( P>0.05). The operation time, warm ischemia time, intraoperative blood loss, postoperative complications, postoperative recovery, renal function and other indicators of the two groups were compared, as well as the follow-up results. Results:The operations in both groups were successfully completed, and none of them were transferred to open surgery. Patients in the RAPN group had markedly lower median operation time [115(90-220) vs.145(120-240) min], and reduced median time of warm ischemia [15(10-25) vs. 23(20-28) min] than those in the LPN group, the difference between the two groups was statistically significant ( P<0.05). There were no significant differences in the median time of eating [1(1-2) vs. 1(1-3)d], time of extubation [4(3-16) vs. 5(3-14)d], postoperative absolute time in bed [4(3-7) vs. 4(2-12)d], hospitalization time [7(5-16) vs. 8(4-14)d], creatinine change[11.3(1.6-44.8) vs. 18.2(1.0-54.8)μmol/L], eGFR change [21.5(1.8-43.5) vs. 22.1(5.6-51.3) ml/(min·1.73m 2)], and hemoglobin change[22.5(11-43) vs. 23.0 (9-62) g/L] between the two groups( P>0.05). The incidence of postoperative complications in the RAPN group and the LPN group were 0 and 15%(3/20), respectively, and the difference was statistically significant ( P<0.05). 3 patients had blood transfusion during the operation, because 2 patients had renal wound hemorrhage. During the operation, ultrasonic scalpel electrocoagulation to halt bleeding and hemostatic cotton padding were performed, which improved after suture. One case had active hemorrhage from the renal wound arteries after surgery, which improved after blood transfusion and embolization. Another 2 patients had postoperative fever, improved after anti-infection and antipyretic treatment. There was no leakage of urine after operation in RAPN group and LPN group. The RAPN group was followed up for 6 months to 45 months with a median time of 12 months, and the LPN group was 8 months to 50 months with a median time of 15 months. No tumor recurrence or delayed renal stump bleeding was identified. Conclusions:Compared with LPN, RAPN therapy of giant RAML can shorten the operation time and warm ischemia time, and decrease postoperative complications, the two have similar short-term follow-up results in terms of tumor control and renal function protection.
9.Mediating role of social support between mindfulness and perceived pressure in young and middle-aged patients with inflammatory bowel disease
Mengyue LIN ; Junwan JIA ; Jing YUAN ; Yi WANG ; Pinjuan CAO ; Dahong ZHAI ; Wenjun MIN ; Yamei CHEN
Chinese Journal of Modern Nursing 2022;28(20):2701-2707
Objective:To explore the mediating role of social support between mindfulness and perceived pressure in young and middle-aged patients with inflammatory bowel disease (IBD) .Methods:From January to September 2021, the convenient sampling method was adopted to select 350 patients with inflammatory bowel disease who were treated in 5 ClassⅢ Grade A hospitals in Shanghai. The general information questionnaire, Mindful Attention Awareness Scale (MAAS) , Social Support Ratings Scale (SSRS) and Chinese Perceived Stress Scale (CPSS) were used for survey. Pearson correlation analysis was used to test the correlation between variables. AMOS 22.0 was used to establish the structural equation model, the maximum likelihood method was used to fit and modify the data and the Bootstrap method was used to test the mediation effect. A total of 350 questionnaires were distributed in this study and 324 valid questionnaires were recovered, with an effective recovery rate of 92.57%.Results:The total score of perceived stress in young and middle-aged IBD patients was (27.81±3.86) . Social support, mindfulness and perceived stress were negatively correlated ( r=-0.306, -0.220, P<0.01) . Social support played a partial mediating role between mindfulness and perceived stress, accounting for 55.13% of the total effect. Conclusions:The perceived stress level of young and middle-aged IBD patients is relatively high, which is not optimistic. Mindfulness affects perceived stress in young and middle-aged IBD patients through social support. Clinical workers need to pay attention to condition of mindfulness and social support of patients and take targeted psychological interventions to reduce their perceived stress.
10.The surgical skills of single-docking robot-assisted nephroureterectomy in rectus rectilinear cannula placement
Jia MIAO ; Haibin WEI ; Xinpeng CHEN ; Qi ZHANG ; Feng LIU ; Zujie MAO ; Enhui LI ; Xiaolong QI ; Lin QIAN ; Dahong ZHANG
Chinese Journal of Urology 2021;42(1):63-64
Single-docking robot-assisted laparoscopic radical nephroureterectomy is difficult to deal with the distal ureter and bladder. Thirty-two patients with ureter carcinoma underwent single-docking robot-assisted nephroureterectomy in rectus rectilinear cannula placement in our hospital. The advantages include lower surgical difficulty, shorter operation time, less surgical bleeding and damage. This surgical method is a safe and effective minimally invasive treatment for ureter carcinoma.


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