4.The heart functions of preschool and school-age children by means of electrical impedance tomography.
Jian-Xin SHEN ; San-Ming ZHANG ; Xiao-Jing WEN
Chinese Journal of Applied Physiology 2008;24(1):17-124
Age Factors
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Cardiac Output
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physiology
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Cardiography, Impedance
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methods
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Child
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Child, Preschool
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Electric Impedance
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Female
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Heart
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physiology
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Humans
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Male
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Stroke Volume
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physiology
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Tomography
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methods
6.MR molecular probes RGD-USPIO in evaluation effect of ucleoside combination on human hepatoma cell line Bel-7402 in vitro
Rongrong ZHAO ; Ming HAN ; Xin CHENG ; Shizhuang ZHANG
Chinese Journal of Medical Imaging Technology 2017;33(8):1163-1166
Objective To evaluate the effect and the anti-tumor mechanism of nucleoside combination on human hepatoma cell line Bel-7402 with Arg-Gly-Asp sequence labeled by ultrasmall superparamagnetic iron oxide (RGD-USPIO).Methods The tumor cells Bel-7402 of logarithmic phlyhase were divided into experimental group and control group,treated with 1 mmol/L nucleoside combination and 1640 medium respectively.The two group were co-cultured for 48 h,and were added RGD-USPIO and co-cultured for 6 h.Then the two groups were proceeded with MR scanning,and the signal intensity of T2WI were measured.After extraction of the total RNA and protein of experiment group and control group,the expression of integrin avβ3 was detected using real-time PCR and Western blot.Results The T2WI signal intensity of experimental group (997.35±42.83) was higher than that of control group (241.05±15.36,t 28.79,P<0.01).Compared with control group,the expression of integrin αvβ3 mRNA in experimental group was (0.22±0.02) times (t=4.50,P<0.01).According to Western blot,the protein bands of experimental group were relatively lighter than that of control group,the expression of integrin αvβ3 in experimental group was lower (t =11.88,P<0.01).Conclusion Nucleoside combination has anti-tumor effect by inhibiting integrin ligand-receptor binding,and the anti tumor mechanism may be related to the induction of tumor cell apoptosis.MR molecular probes can conveniently and accurately evaluate the anti-tumor effect of nucleoside combination on Bel-7402 cells.
7.Anticancer effect of tea polyphenols on implanted breast cancer
Yan-Ming ZHANG ; Li XU ; Xin-Yi CHEN ; Neoplastic HEMATOLOGY ;
International Journal of Traditional Chinese Medicine 2006;0(06):-
Objective To observe the growth inhibiting effect of tea polyphenols on implanted mouse breast cancer(EMT_6),and offer the foundation for the next study on its inhibiting angiogenesis effect and its molecular mechanism.Methods Mammary adenocarcinoma EMT_6 was cultured and propagated,then implanted on female BALB/c mice.Tea polyphenols was peroral administrated and local injected.Anticancer function was determined with regular methods.Result After tea polyphenols were taken by oral and local injection on EMT_6 mammary adenocarcinoma mice,the inhibitory ratio of tumor are respectively 37.43% and 40.94%.Conclusion Tea polyphenols had significant inhibitive effect on implanted breast cancer.This offered the foundation for the next intensiVe study on its inhibiting angiogenesis effect and its molecular mechanism.
8.Treatment of distal tibiofibular fractures by indirect reduction and plate fixation through inferior fibula
Ming ZENG ; Xin-Jian ZHAO ; Jian-Ping ZHANG ;
Chinese Journal of Orthopaedic Trauma 2004;0(08):-
Objective To investigate the clinic results of treatment of distal tibiofibular fractures by in- direct reduction and plate fixation through inferior fibula.Methods Between 2002 and 2005,32 cases of distal tibiofibular fractures were treated with indirect reduction and plate fixation through inferior fibula.According to the AO/ASIF classification,there were 17 cases of type A,nine cases of type B,and six cases of type C.Twenty of them also received iliac autograft through a limited median incision at the lower tibia to repair their lateral tibial defects.After operation their ankle joints were fixated at 90?with piaster brace and cast for three months.The bone union,wound and the function of the ankles were observed after surgery.Results All the patients were followed up for an average of 16 months.The average bone union time was 14 weeks.No nonunion,screw loosening,broken plate,or infection of the wounds was found in this series.The excellent and good rate was 84.4% according to Mazur's ankle joint function scoring.Conclusion Indirect reduction and plate fixation through inferior fibula is a satisfactory technique in the treatment of distal tibiofibular fractures.
9.Diagnostic value of magnetic resonance cholangiopancreatography in low choledochal joint and its complications
Xin ZHAO ; Ming XIE ; Zhuqing CHEN ; Zhenshan WANG ; Shuze ZHANG
Chinese Medical Equipment Journal 2015;(9):81-83,125
To investigate the diagnostic value of magnetic resonance cholangiopancreatography (MRCP) for di-agnosing low choledochal joint and its complications. MRCP results of 29 low choledochal joint patients con-firmed were analyzed retrospectively, and then compared with those by endoscopic retrograde cholaniopancreatography (ERCP). MRCP could display clearly the location of low choledochal joint, and the patients with complications involved 4 ones with cholecystolithiasis, 5 ones with cholangiolithiasis, 15 ones with cholecystolithiasis and cholangiolithi-asis, 3 ones with Mirizz syndrome, 2 ones with pancreatitis, 1 case with carcinoma of head of pancreas after cholecystec-tomy and 1 case of Vater ampullary carcinoma. Interoperative and ERCP findings proved that MRCP could be used for the diagnosis of low choledochal joint and its complications with no missed diagnosis. MRCP can be involved for the diagnosis of low choledochal joint and its complications, and thus can be used for preoperative planning and treat-ment of the complications.
10.Expression and association of IMP3 and MVD in squamous carcinoma of the cervix
Yajun ZHANG ; Xin JIANG ; Yue JIANG ; Mingda CHENG ; Ming LI
Chinese Journal of Clinical and Experimental Pathology 2014;(9):996-999
Purpose To investigate the expression of insulin-like growth factorIImRNA binding protein 3 ( IMP3 ) and microvessel density (MVD) in squamous carcinoma of the cervix (SCC) and analysis their relationship in SCC. Methods The expression of IMP3 and MVD was examined by immunohistochemistry SP method in normal cervical epithelium ( NCE) , low-grade cervical intraepi-thelial neoplasia (CIN-L), high-grade cervical intraepithelial neoplasia (CIN-H) and SCC. Results (1)The positive expression rates of IMP3 in NCE, CIN-L, CIN-H, SCC tissues were 0(0/15), 0(0/11), 37.5%(9/24) and 86.0%(43/50), the difference was statistically significant (x 2 =53.345, P=0.000). IMP3 expression was significant difference among NCE and CIN-H, SCC (P<0.008 3), and that was also among SCC and CIN-L, CIN-H (P<0.008 3). (2)The MVD count was increased with the development of cervical squamous lesion, there was significant difference among those groups (F=145.968, P<0.01), and the difference was al-so statistically significant between every two groups (P<0.05). The positive expression of IMP3 and MVD count in 50 cases of SCC tissues showed statistical difference in different pathologic grade, lymph node metastasis, and depth of tumor invasion groups ( P<0.05), but didn't in different patients’age groups (P>0.05). And the positive expression of IMP3 was closely related with MVD count in SCC tissues (rs =0.323, P<0.05). Conclusion IMP3 plays an important role in the occurrence, infiltration and metasta-sis of SCC, and the abnormal expression of IMP3 may relate with the angiogenesis of tumors.