2.Effect of herba Houttuyniae injection on the change of learning and memory of mice in noises condition
Lijuan SHI ; Rong DONG ; Feng SUN
Chinese Journal of Behavioral Medicine and Brain Science 2008;17(3):207-209
Objective To study the effect of noise on the ability of learning and memory of mice,and observe the effect of herba Houttuyniae injection on the change of the ability of learning and memory in noise condition, and then analyses the mechanisms. Methods To choose suitable mice and divide into groups, applying Y-maze and colorimeter to determine the content of MDA and the enzyme activity of SOD, AChE and NOS of mice brain. Results Learning group in Y-maze, noise cause the ability of noise group (12.1±1.20) decrease(P<0.01) compared with the control group(15.1±1.45), but herba Houttuyniae injection can reverse the ability of the mice, the correct frequency is much higher(P<0.01)in herba Houttuyniae group(14.9±1.60). The results is same in the memory group, in Y-maze, noise cause the memory ability of noise group (5.20±1.40) decrease(P<0.01) compared with the control group(6.30±1.32), but herba Houttuyniae injection can reverse the memory ability of the mice, the correct frequency is much higher(P<0.01)in herba Houttuyniae group(6.10±1.10). Either learning or memory group mice, noise can decreased the activity of SOD and NOS of mice brain(P<0.01), but the content of MDA and the ability of AChE elevated(P<0.01). herba Houttuyniae injection can change the effect of noise to mice, the activity of SOD and NOS of mice brain elevated(P<0.01) and the content of MDA and the ability of AChE decreased (P<0.01). Conclusion herba Houttuyniae injection can prevent the ability of learning and memory of mice which decreased by noise, and have the effect of intoxication.
3.Analysis on relationship between MTHFR C677T locus polymorphism and unexplained adverse pregnancy by gene chip method
Zhengmin SUN ; Hua WANG ; Dong FENG
International Journal of Laboratory Medicine 2017;38(4):473-474,477
Objective To investigate the relationship between 5 ,10-methylenetetrahydrofolate reductase (MTHFR) gene C677T locus polymorphism and unexplained adverse pregnancy.Methods Three hundreds and twenty pregnant women with unknown ad-verse pregnancy ≥ 2 times in the infertility department ,and obstetrics and gynecology department of our hospital from June 2014 to May 2016 were selected as the case group and 388 healthy non-abortion parous women were taken as the control group.The MTH-FR gene C677T locus polymorphism in the two groups was analyzed by using gene chip method.The differences in genotype and al-lele frequency distribution were compared between the two groups ,and the relationship between unexplained adverse pregnancy and MTHFR C677T locus polymorphism was analyzed.Results The frequency distribution of MTHFR genotype C677T C/C had sta-tistically significant difference between the case group and control group (P<0.05 ,OR=0.284).The frequency distribution of gen-otype C/T had no statistical difference between the case group and control group (P=0.400 ,OR=1.140).The frequency distribu-tion of genotype T/T had statistical difference between the case group and control group (P<0.05 ,OR=7.672).The frequency distribution of allele C and T had statistical difference between the case group and control group ( P< 0.05 ,OR= 0.304 ). Conclusion The high expression of MTHFR C677T genotype T/T may be a risk factor of unknown adverse pregnancy in child-bearing age women.
4.Epidemiologic analysis of traumatic vertebral compression fractures
Dong SUN ; Feng ZHANG ; Li JIA
Orthopedic Journal of China 2006;0(20):-
0.05);But there was significant difference in the grade of disability between internal fixation and conservative therapy in single vertebral body(P
5.Clinical effect of penile lengthening and augmentation with autologous granular fat graft on short penis
Yulin DONG ; Liwei DONG ; Wensen XIA ; Lin HE ; Feng SUN
Chinese Journal of Medical Aesthetics and Cosmetology 2016;22(4):221-224
Objective To evaluate the effectiveness and safety of autologous granular fat graft applied for penile lengthening and augmentation.Methods After all the superficial ligment and 1/3-2/ 3 part of the deep suspensory-ligament had been cut off for penile lengthening,local pedicaled fasciaadipose flap was designed to fill the depression,the pre-centrifuged autologous granular fat was injected into the space beneath Buck's fascia for penile augmentation.Normal length,pulling penis length,diameter,circumference and complications were evaluated.Results 34 cases were performed and followed up for 3-18 months,both ideal length and diameter increase of penis were achieved.The differences of nomal length,pulling-length,the diameter and circumference were (2.8±0.1) cm,(2.1±0.2) cm,(0.9 ± 0.1) cm,(2.8 ± 0.1) cm,respectively.The common complications included poor wound healing in 4 cases,preputial edema and subcutaneous scleroma in 8 cases for 3 months.Conclusions Autologous granular fat graft for penile augmentation during the lengthening surgery is a reliable and effective method and easy procedure.Detail processing can decrease the complications.
8.Role of mitochondrial ATP-sensitive potassium channels in attenuation of cerebral ischemia-reperfusion injury by dexmedetomidine in rats
Feng YUAN ; Hongguang FU ; Kai SUN ; Tieli DONG
Chinese Journal of Anesthesiology 2014;34(4):500-502
Objective To evaluate the role of mitochondrial ATP-sensitive potassium (mito-KATe) channels in attenuation of cerebral ischemia-reperfusion (I/R) injury by dexmedetomidine in rats.Methods One hundred and twenty healthy male Wistar rats,weighing 290-340 g,were randomly assigned into 5 groups (n =24 each) using a random number table:sham operation group (group S) ; group I/R; dexmedetomidine group (group D) ; 5-HD (a specific blocker of mito-KATPchannel) group and 5-HD + dexmedetomidine group (group 5-HD + D).The rats were anesthetized with intraperitoneal chloral hydrate.Focal cerebral I/R was produced by 2 h middle cerebral artery occlusion followed by reperfusion.In group D,dexmedetomidine 50 μg/kg was injected intraperitoneally before ischemia and after onset of reperfusion.In group 5-HD,5-HD 30 mg/kg was injected intraperitoneally at 1 h before ischemia.In 5-HD + D group,5-HD 30 mg/kg was injected intraperitoneally at 1 h before ischemia and the other procedures were similar to those previously described in group D.Twelve rats were chosen at 24 and 48 h of reperfusion to assess the neurological deficit score (NDS).The animals were then sacrificed and brains were removed for determination of cerebral infarct size by TTC staining.Results Compared with S group,NDS and cerebral infarct size were significantly increased at each time point in the other four groups (P < 0.05).Compared with group I/R,NDS and cerebral infarct size were significantly decreased in D and 5-HD + D groups (P < 0.05),and no significant change was found in the parameters mentioned above in 5-HD group (P > 0.05).Compared with group D,NDS and infarct size were significantly increased in group 5-HD + D (P < 0.05).Conclusion Mito-KATP channels are involved in reduction of I/R-induced cerebral injury by dexmedetomidine in rats.
9.Efficacy observation of transcranial direct current stimulation for improving the attention in patients with infarction in basal ganglia region
Weiming SUN ; Xiangli DONG ; Guohua YU ; Yefeng YUAN ; Zhen FENG
Chinese Journal of Cerebrovascular Diseases 2016;13(10):505-510
Objective To investigate the efficacy observation of transcranial direct current stimulation (tDCS)for improving the attention in patients with infarction in basal ganglia area. Methods Sixty consecutive patients with basal ganglia infarction admitted to the Department of Rehabilitation Medicine,the First Affiliated Hospital of Nanchang University from May 2015 to May 2016 were enrolled. They were randomly divided into either a control group or a test group according to the random number table (n = 30 in each group). The patients in both groups received routine rehabilitation training,and those in the test group received tDCS therapy synchronously,and the control group received the sham tDCS stimulation. The evaluations and analyses were conducted with the Montreal cognitive assessment (MoCA),d2 test of attention,and event-related potential-P300 (ERP-P300),respectively in all patients before intervention and 4 weeks after intervention,and they were compared between the groups. Results There was no significant difference before intervention between the two groups (all P > 0. 05). Compared with before intervention,the ERP-P300 latencies were reduced,the amplitudes were increased after intervention in the patients of the test group and the control group (all P < 0. 05). The MoCA total scores (the test group:22. 7 ± 2. 7 vs. 15. 5 ±
2. 4;the control group:17. 2 ±2. 5 vs. 15. 6 ±2. 3),attention dimension scores (the test group:4. 6 ± 1. 2 vs. 2. 4 ± 1. 6;the control group:3. 6 ± 1. 5 vs. 2. 5 ± 1. 5),and the total completion of d2 attention test task, total scores,and concentration degree scores (the test group:295 ± 31 vs. 250 ± 45,279 ± 38 vs. 223 ± 52, 97 ± 22 vs. 75 ± 25;the control group:276 ± 33 vs. 247 ± 45,257 ± 39 vs. 211 ± 56,84 ± 23 vs. 71 ± 24) were all increased (all P < 0. 05),and all the indexes of the test group were better than those of the control group (all P < 0. 05). Conclusion tDCS contributes to the improvement of the attention in patients with infarction in the internal capsule-basal ganglia region.
10.Effects of gallotannin on proliferation and cell cycle of rat glomerular mesangial cells under condition of high glucose
Meng QU ; Rui JIANG ; Kai FENG ; Liwei SUN ; Zhiheng DONG
Journal of Jilin University(Medicine Edition) 2016;42(5):920-924
Objective: To explore the inhibitory effect of gallotannin (GLTN) on the proliferation of rat glomerular mesangial cells (GMC)induced by high sugar stimulation and the influence in the cell cycle of the rats, and to clarify the prevention effect of GLTN in the occurrence and development of diabetic nephropathy (DN). Methods:The experimental cells were divided into normal control group (D-glucose 5.5 mmol·L-1 ,NC group), high glucose group (D-glucose 30 mmol· L-1 ,HC group),high glucose + 5 mmol· L-1 3 - AB group (AB group),high glucose + 20 μmol·L-1 GLTN group (G20 group),high glucose + 40 μmol· L-1 GLTN group (G40 group).The proliferation of GMC in different groups at different time points (4,8,24,48 and 72 h)was observed by MTT assay.The changes of cell cycle of GCM under different culture conditions were examined by flow cytometry,and the expression levels of TGF-β1 and CTGF were detected by Western blotting method. Results:Compared with NC group,the proliferation levels of GMC in HC group were increased (P <0.01),and reached the peak at 48 h ;the percentage of S phase cells was increased (P <0.01).Compared with HC group,the proliferation levels of GMC in 3-AB group and GLTN group were significantly decreased (P < 0.01 ),and the percentages of S phase cells were decreased (P <0.01).Compared with NC group,the protein expression levels of TGF-β1 and CTGF in each drug group were increased (P < 0.05 or P < 0.01),but they were significantly lower than those in HC group (P < 0.01).Conclusion:GLTN can inhibit the proliferation of GMC under high sugar stimulation through arresting the cell cycle and down-regulating the expressions of TGF-β1 and CTGF and delay the occurrence and development of DN.