1.Study on Apoptosis-Promoting Mechanism of β-elemene in Anti-liver Cancer
Jun OUYANG ; Hong SHEN ; Junlou LIU ; Yajun LIU ; Jing GU
World Science and Technology-Modernization of Traditional Chinese Medicine 2014;(4):738-742
This article was aimed to study the inhibition of cell proliferation and induction of apoptosis by β-el-emene extract from traditional Chinese medicine (TCM) Rhizoma Zedoariae on human hepatocellular carcinoma (HepG2) cells, as well as the effect on expression of apoptosis-related proteins in liver cancer-burdened H22 mice. Human HepG2 cells were cultured in vitro. MTT method was used in the determination of β-elemene on cell prolif-eration. Apoptosis of cells were detected by the Annexin V-FITC/PI double staining method. Through the establish-ment of liver cancer-burdened H22 mice model, the inhibition of cell proliferation and induction of apoptosis-related protein expression by β-elemene on tumor-burdened mice were observed. The results showed that β-elemene inhib-ited HepG2 cell proliferation, which was dose- and time-dependent. Annexin V-FITC/PI method detected early apoptotic cells. Inhibitions of tumor growth on tumor-burdened mice from different groups were different. Inhibition of tumor growth in the high-dose β-elemene group was relatively low, and that of the middle-dose was more obvi-ous. It was concluded that β-elemene can effectively inhibit human HepG2 cells proliferation. The inhibition on pro-liferation of cancer cells was through the inducing of cell apoptosis. It was also related to the upregulation of apopto-sis-related protein Caspase-3 and downregulation of NF-κB P65.
2.Toxic Effects of Hematoporphyrin Monoether——PsD-044 on Ocular Tissue
Yajun PENG ; Shufang HE ; Wei ZHAO ; Chuangui HAN ; Nianci SHEN
Academic Journal of Second Military Medical University 1981;0(03):-
The histopathological changs of the dog eyes caused by acute and subacute toxic effectsof hematoporphyrin monoether--PsD-044 were observed in this research. The results showed thatPsD-044 could lead to keratoscleritis and scleral perivasculitis. Phototoxic cyclitis and inflammatory edema of the retina were more serious in deferred killed animals, suggesting that it is necessary to avoid exposure to light after the administration of PsD-044.
3.STUDY OF THE COMBINED PREVENTIVE EFFECT OF FOLIC ACID AND VITAMIN B_(12) ON THE DEVELOPMENTAL TOXICITY OF ALCOHOL
Yunan TANG ; Yajun XU ; Xiujuan WANG ; Zengli YU ; Xiaoyi SHEN ; Yong LI
Acta Nutrimenta Sinica 2004;0(05):-
Objective: To investigate the combined preventive effect of folic acid (FA) and vitamin B12 (VB12) on the developmental toxicity of alcohol. Methods: To build animal model with the developmental toxicity by giving 5g/kg bw alcohol (25% ethanol) intragastrically (IG) to ICR mice during gestational day (GD) 6-15. In addition to alcohol, three groups were given FA 60 mg/kg bw, VB12 1 mg/kg bw, FA 60 mg/kg bw + VB12 1 mg/kg bw respectively by IG during GD1-GD16. An alcohol model group and a negative control group were set. All dams were killed at GD18. Results: Compared to the alcohol model group, the pregnant mice of FA + VB12 combined intervention group put on more weight during pregnancy; the live fetal rate; the fetal weight, body length and tail length were all increased; the abnormal ossification rate of sternum, occipital bone, and four limbs dropped (P
4.Alteration and significance of coagulation function in patients with stage Ⅲ-Ⅳ non-Hodgkin lymphoma
Yajun JIANG ; Jian GU ; Zhongqiang WANG ; Lianjun SHEN ; Hongxia WANG ; Lili KANG
Journal of Leukemia & Lymphoma 2009;18(7):419-420,423
Objective To observe the alteration of coagulation function in the patients with stage Ⅲ~Ⅳ non-Hodgkin lymphoma and evaluate its clinical significance. Methods 62 patients with NHL and 20 healthy examiners were studied. The parameters of PT, APTT, TT and FIB in blood plasma were detected.Results The levels of APTT and FIB in NHL group were significantly higher than that in control group (P <0.05 and<0.01), and in stage Ⅲ and Ⅳ NHL groups both were significantly higher than that in control group and stage Ⅱ group (P< 0.05 and <0.01). The levels of FIB in ⅢB, ⅣA and ⅣB group were significantly higher than that in control group and ⅢA group (P<0.01), but there was no statistical significance among ⅢB, ⅣA and ⅣB group (P >0.05).Conclusion The NHL patients especially ⅢB~ⅣB patients usually accompany with abnormal coagulation function and hypercoagnlable states, and it' s necessary to monitor their coagulation function.
5.Targeting therapy of magnetic doxorubicin stealth liposome on human gastric cancer xenografts in nude mice
Yishu LIU ; Liqing YAO ; Pinghong ZHOU ; Xizhong SHEN ; Weiyue LU ; Ming YAO ; Zhijiang WU ; Yajun SUN
Chinese Journal of General Surgery 1993;0(03):-
Objective To study the effect of magnetic doxorubicin stealth liposome on human gastric cancer xenografts in nude mice.Methods Human gastric cancer cell line MKN-45 was implanted into 36 nude mice.Different kinds of drug were injected through the caudal vein of tumor bearing nude mice divided into 6 groups .Permanent magnet was put into tumor in targeting group.Results The growth speed of tumor in the group of MDL (+) significantaly slowed down than other groups.The rate of tumor restrain in tumor weight and tumor volume of MDL (+) group were 71% and 70%, which were remarkably higher than those of the DOX and MDL (-) group (all P
6.Ligaturing pericardial blood vessel combined splenectomy for treating children with cavernous transformation of portal vein
Dan ZHANG ; Yajun CHEN ; Tingchong ZHANG ; Chunhui PENG ; Wenbo PANG ; Zengmeng WANG ; Qiulong SHEN
International Journal of Surgery 2014;41(6):409-413
Objective To retrospectively analyze the therapeutic effect of ligaturing pericardial blood vessel combined splenectomy for treating children with gastrointestinal bleeding and hypersplenism secondary to cavernous transformation of portal vein (CTPV).Methods Retrospectively analyzed 30 cases of children with CTPV admitted by Beijing Children's Hospital in General Surgery Department from Jan.2005 to Dec.2012,and evaluated the clinical efficacy of ligaturing pericardial blood vessel combined splenectomy for treating children with gastrointestinal bleeding and hypersplenism secondary to CTPV.Results All of 30 cases admitted operation without serious complication.All children admitted follow-up from 6 to 60 months.Seven cases of 22 patients with gastrointestinal bleeding relapsed bleeding post operation and were cured by conservative treatment.Four cases of 7 relapsing bleeding children had NSAID.All cases of 8 children with simple hypersplenism suggested normal results of blood routine post operation,2 children occurred bloody stools who were cured by conservative treatment.None of patients had serious infection correlating with splenectomy.The size of spleen of patients with gastrointestinal bleeding is larger than patients with simple hypersplenism.Conclusions (1) Ligaturing pericardial blood vessel combined splenectomy is a good choice for children with gastrointestinal bleeding and hypersplenism secondary to CTPV.(2) NSAID may increase the recurrence rate of gastrointestinal bleeding post operation.(3) There may be a negative correlation between the size of spleen and the risk of gastrointestinal bleeding for children with CTPV.
7.Clinical analysis of 81 children with urinary system injury after hematopoietic stem cell transplantation
Ruyue CHEN ; Hanyun TANG ; Qing CHEN ; Yajun FENG ; Yunyan SHEN ; Qinying XU ; Yun ZHU ; Xueming ZHU ; Xiaozhong LI
Journal of Clinical Pediatrics 2017;35(5):345-349
Objectives To investigate the etiology, renal pathology, treatment, and prognosis of children's urinary system injury after hematopoietic stem cell transplantation (HSCT). Methods Clinical data of 81 children with urinary dysfunction after HSCT admitted to the Hematology Department in Children's Hospital of Soochow University were analyzed, and relevant literatures were reviewed. Results In 81 cases (50 males and 31 females), the age ranges from 8 months to 17 years old. Thirty cases (37%) with prerenal injury were recovered after active rehydration and other symptom specific treatment. There were 9 (11.1%) children with renal injury, four cases were given up therapy or transferred to other hospitals, thus lead to an unknown prognosis. Kidney biopsy was performed in the remaining five cases for pathological investigation. After active symptom-speific and etiology-based treatment, serum creatinine and glomerular filtration rate of four cases return to normal. But in the long-term follow-up,one case died of recurrence of primary disease, reinfusion of hematopoietic stem cell combined with renal failure. The remaining 3 patients were with chronic kidney disease (CKD). One case with renal thrombotic microangiopathy was in the chronic dialysis. Postrenal renal injuries were mainly hemorrhagic cystitis (28.4%) and urinary tract infection (16%). After a large dose of rehydration, urine alkalization and anti-infection therapy, they were recovered in the short term with a good prognosis. Conclusions Urinary injury after HSCT is mainly divided into three categories: prerenal, renal and postrenal, in which renal injury is prone to frequent recurrence.
8.Clinical experience of bladder muscle flap replacement for long segment defect of ureter in laparoscopic surgery
Fayou ZHOU ; Yunwu WANG ; Wei PENG ; Wei XU ; Xiaoyi ZHANG ; Yajun SHEN ; Yilong WU ; Jiude ZHENG ; Pan GAO ; Shuxian ZHANG
China Journal of Endoscopy 2017;23(4):102-105
Objective To explore the effect of bladder muscle flaps for long segment defect of ureter middle-lower segment and reconstruction method in laparoscopic surgery. Methods Clinical data of 3 patients with long segment defect of ureter middle-lower segment, all of whom underwent laparoscopic surgery from May 2014 to April 2016 was retrospectively evaluated. There were 1 male and 2 females, in 2 cases with history of ureteroscopy holmium laser lithotripsy in ureter middle-lower segment, in 2 cases with history of repeated ESWL. Preoperative urinary tract ultrasound, CT and intravenous urography imaging showed severe hydronephrosis, ureter middle-upper segment severe hydroureter, ureter middle-lower segment severe stricture. Results Operations were successful in 3 cases. After reconstruction bladder muscle flaps average length of is 9.6 cm, The average operation time of 180 min, The average length of hospital stay for 10 d, Postoperative eighth weeks extracted the double J tube and used ureteroscopy showed anastomotic unobstructed, it may smooth Through 8.5 F ureteroscopy, and no infection and urinary leakage occurred, Follow-up ranged from 3 to 18 months. 3 cases hydronephrosis and hydroureter significantly reduce, ureter unobstructed, no narrow in ureter and muscle flap of tube joint, serum creatinine valueswere in normal range. Conclusions The bladder muscle flaps for the treatment of long segment defect of ureter middle-lower segment in laparoscopic surgery was a safe and effective therapy, but it must be accomplished by seasoned doctors.
9.Transurethral vaporization of the prostate using 1 470 nm diode laser in treatment of BPH
Fayou ZHOU ; Xiaoyi ZHANG ; Yunwu WANG ; Wei XU ; Shuxian ZHANG ; Wei PENG ; Yajun SHEN ; Yilong WU ; Jiude ZHENG ; Pan GAO
China Journal of Endoscopy 2016;22(12):26-29
Objective To explore the efficacy and safety of Transurethral vaporization of the prostate using 1 470 nm diode laser in treatment of BPH.Methods 58 cases BPH patients underwent transurethral vaporization of the prostate using 1 470 nm diode laser from Dec. 2015 to Apr. 2016 were retrospectively analyzed, including the mean operation time and compared hemoglobin, electrolyte, urinary symptoms, before and after surgery.Result Operations were successfully performed in all the 58 cases, with average operation time of (48.2 ± 16.3) min. No difference was found in either hemoglobin decrease or electrolyte decrease before and after surgery. The patients were followed up for 1~3 months, which revealed a signiifcant reduction in IPSS and improvement in Qmaxand PVR (P < 0.05), compared with pre-operation. No severe complications were reported, including transurethral resection (TUR) syndrome, urinary incontinence and impaired erectile function.Conclusion Transurethral vaporization of the prostate using 1 470 nm diode laser is a safe and effective therapy for BPH. It has advantages of short learning curve, very little blood loss, high efifcacy. It has promising broad prospects.
10.Research of antitumor immunity of gastric carcinoma by DC vaccine with AⅣ in vitro
Lu YANG ; Hong SHEN ; Lixin WANG ; Lin LIN ; Xiaobo ZHOU ; Jing WU ; Zengwei LIU ; Yi XU ; Song ZHAO ; Chao GE ; Shu LUO ; Yajun LIU
International Journal of Traditional Chinese Medicine 2011;33(4):301-304
Objective Through experiments in vitro,we explored the role of Chinese medicine monomer-Astragaloside Ⅳ with DC vaccine in the body immunologic function.Methods Peripheral blood mononuclear cells (PBMCs)from healthy volunteers were isolated,cultured and generated in vitro,pulsed with tumor antigen from SGC7901 gastric carcinoma cell lysates,produced DC vaccine.Observe T-cell proliferation responses stimulated by DC vaccine with AⅣ group,DC vaccine group and AⅣ group respectively,and the anti-tumor effects on SGC7901 cells in vitro.Results ①The T-cell proliferation rate of DC vaccine with AⅣ group and DC vaccine group were significantly higher than AⅣ group and T-cell group(negative control group)(P=0.000).The stimulating efficacy on T-cell proliferation of DC vaccine with AⅣ group was higher than that of DC vaccine group(S/R 1∶5,1∶10,1∶50,1∶100,P=0.013,0.014,0.017,0.019).Compared with T-cell group,the T-cell proliferation rate of AⅣ group had no statistically significance(P=0.185).②The killing rate of effector cells actived by DC vaccine with AⅣ group and DC vaccine group against SGC7901 gastric carcinoma cells were higher than that of AⅣ group and T-cell group(P=0.000).The Killing power of DC vaccine with AⅣ group was stronger than that of DC vaccine(E/T 5∶1,10∶1,20∶1,50∶1,P=0.023,0.012,0.016,0.011);while the group of AⅣ group and T-cell group cannot killing tumor cells.Both had no statistically significance(P=0.267).Conclusion AⅣ can stimulate T-cell proliferation and enhance the activity of killing tumor cells by DC,which induced specific antitumor response against stomach carcinoma cells effectively.