1.Effect of advanced glycation end products on the function and angiogenesis of adipose tissue-derived stem cells and the protective effect of danhong injection: an experimental study.
Zhi-Qing HE ; Rui-Zhen JI ; Xin WANG ; Chun LIANG ; Zong-Gul WU
Chinese Journal of Integrated Traditional and Western Medicine 2014;34(7):839-845
UNLABELLEDOBJECTIVE To investigate the effect of Nepsilon-(carboxymethyl) lysine albumin (CMLs), a primary advanced glycation end products (AGEPs) isoform in diabetic body, on the function and angiogenesis of adipose tissue-derived stem cells (ADSCs) and the protective effect of Danhong Injection (DH). METHODS Human ADSCs were cultured and separated from human subcutaneous fatty tissue using enzymatic digestion and centrifugation. The morphology was observed using optical microscope and differentiation capacities assessed. Cells were exposed to 5 different interventions respectively for 24 h, i.e., PBS, 60 1 microg/mL BSA, 60 microg/mL CML-BSA, 100 microL/mL DH, and 60 micro./mL CML-BSA +100 microL/mL DH. Their effect on the proliferation, migration, apoptosis, and secretion were observed using WST-1 assay, Transwell assay, Annexin V-FITC/PI flow meter test reagent kit, human VEGF reagent kit, ELISA reagent kit, respectively. The effect on ADSCs angiogenesis was observed by in vitro angiogenesis test.
RESULTSCompared with the BSA group, the capacities of proliferation and migration could be significantly inhibited by CML-BSA, the apoptosis promoted, the secretion of VEGF reduced, and the angiogenesis of ADSCs weakened (P < 0.05). Compared with the blank control group, 100 microL/mL DH could significantly promote the proliferation and migration capacities of ADSCs, inhibit apoptosis of ADSCs, increase the secretion of VEGF, and improve the angiogenesis of ADSCs (P < 0.05). Compared with the CML-BSA group, the inhibition of CML-BSA on the proliferation and migration capacities of ADSCs could be significantly reversed, the promotion of CML-BSA on the apoptosis of ADSCs improved, the secretion of VEGF increased, and the angiogenesis of ADSCs elevated (P < 0.05).
CONCLUSIONclusion CMLs could significantly inhibit the proliferation and migration capacities of ADSCs, promote their apoptosis, and inhibit their angiogeneses, which could be improved by DH.
Adipose Tissue ; cytology ; Cell Differentiation ; drug effects ; Cell Proliferation ; drug effects ; Cells, Cultured ; Drugs, Chinese Herbal ; pharmacology ; Glycation End Products, Advanced ; pharmacology ; Humans ; Neovascularization, Pathologic ; drug therapy ; Stem Cells ; cytology ; drug effects
3.Effect of FTY720 inhibiting corneal neovascularition induced by sphingosine 1-phosphate
Fan, ZHONG ; Xiao-Zhen, DING ; Wei-Zhong, YANG ; Zong-Yin, GAO ; Xiao-He, LU
International Eye Science 2015;(7):1134-1138
AlM: To explore the inhibiting effect of FTY720 on corneal neovascularization ( CNV) of rat.METHODS: MTT assay and cells scratch were adopted to observe hyperplasia of human umbilical vein endothelial cells ( HUVECs ) and cell migration induced by sphingosine-1-phosphate(S1P) after using FTY720 of different concentration. The effect of FTY720 on CNV induced by S1P in a rat corneal micropocket model was detected. 30SD rats were randomly divided into group A, group B and group C with 10 rats per group. S1P and 0μg, 5μg, and 20μg FTY720 controlled-released particles were implanted into the corneal stroma. The growth of CNV and having pathological examination on 12d after the operation was observed. Findings was analyzed by one-way ANOVA.RESULTS: 10, 102 , 103 , and 104 nmol/L FTY720 and HUVECs co-incubate 72h could inhibit cell proliferation (P < 0. 01 ), 24h after the function of 10, 100nmol/L FTY720, it could inhibit S1P-induced cell migration and the ability of restricting cell proliferation and cell migration was enhanced with increasing concentration of FTY720. On 12d, after rat corneal micropocket controlled-release particles was implanted into groups A, B, C, the CNV area were respectively 10. 05±1. 19, 6. 59±0. 95, 2. 70± 0.68mm2(F=145. 155, P<0. 01), group A and group B was statistically different and this was the same case between group B and group C (P<0. 01).CONCLUSlON:FTY720 can inhibit S1P-induced corneal neovascularization.
4.The study of change of heart function and myocardial histopathology after retrograde coronary venous bypass grafting
Zong-Hong LIU ; Hong-Yu LIU ; Guo-Zhen YU ; Hang LV ; Chao CHI ; Chunyu LI ;
Chinese Journal of Thoracic and Cardiovascular Surgery 1995;0(05):-
Objective To study the effect of heart function and histopathology after coronary vein bypass grafting.Methods 16 pigs were divided into experimental group and control group.Following 16 pig models of chronic myocardial isehemia of left ventri- cle were established,the left internal mammary artery (LIMA)-great cardiac vein (GCV) anastomasis in 8 pigs were completed 4 week later.After GCV occlusion at proximal,retrograde coronary venous perfusion was afforded.At 8 week,coronary angiography,echo- cardiography and myocardial radioisotope scanning were performed.After harvesting these hearts,histopathologic examination and electron microscope were undertaken.Results All anastomotic vessels of experimental pigs were smooth.LVEF in experimental group was significant higher than that in control group (P
5.Study on the interrelationship between time domain analysis of heart rate variab ility and chronic renal failure
Ke TANG ; Zong-Gui WU ; Qin-Zhen CHEN
Academic Journal of Second Military Medical University 2001;22(2):176-178
Objective: To assess the autonomic nervous impairm ent in chronic renal failure and its related factors. Methods: F orty adults were randomly selected including in-patients in the nephrology ward and healthy subjects for routine medical examination. The subjects were classifi ed into 4 groups: normal subjects(NS),normal renal function,nitremia, uremic patients. The time domain measurements of heart rate variability(HRV) and ambula tory blood pressure were analyzed simultaneously . Results: (1) There were significant differences as compared with normal subjects in the time domain measurements of HRV in uremic group. It decreased significantly when the patient was defined as end stage chronic renal failure. There were no significan t differences between NS,normal renal function group and nitremic group. (2) Ti me domain measurements of HRV was significantly lower(P<0.05) in uremia with renal hypertension than in uremia with normal blood pressure. Conclusio n: (1) Patients with chronic renal failure(HRV) have their cardiac auton omic nervous system impaired conspicuously in the course of uremia. (2) There is a positive correlation between cardiac autonomic nervous system impairment in p atients with CRF and renal function levels. Uremia itself is an independent fact or for the impairment of cardiac autonomic nervous system. (3) Renal hypertensio n with uremia may intensify the impairment of cardiac autonomic nervous system of the patients.
6.A prospective parallel controlled clinical study on the treatment of hypertrophic scar after burn by fractional carbon dioxide laser combined with autologous granule fat injection
Zhen HUANG ; Ye CHEN ; Peng WANG ; Dawei ZHENG ; Yali ZONG ; Guozhong LYU
Chinese Journal of Burns 2020;37(1):E021-E021
Objective:To explore the effects of fractional carbon dioxide laser combined with autologous fat injection in the treatment of hypertrophic scar after burn.Methods:From April 2018 to April 2019, 12 patients with hypertrophic scar after burn who met the inclusion criteria were admitted to the Department of Plastic Surgery and Burns of Xuzhou Renci Hospital, and were included in this prospective parallel controlled clinical study. There were 7 males and 5 females with an age of (32±11) years old and scar area of (412±295) cm 2. One scar was selected from each patient and divided into two equal area scars, and they were divided into combined treatment group and laser alone group with 12 scars in each group according to the ramdom number table.The scar in laser alone group was only treated with fractiona carbon dioxide laser, while the scar in combined treatment group was injected with autologous granular fat and then treated with fractional carbon dioxide laser. Scars in the two groups were treated once every 2 months, a total of 3 times. Before the first treatment and 6 months after the last treatment, the scars in the two groups were evaluated by modified Vancouver Scar Assessment Scale (mVSS), hematoxylin-eosin staining and color Doppler ultrasound. Six months after the last treatment, the curative effect of scars in the two groups was evaluated. The adverse reactions during the whole treatment were recorded. Data were statistically analyzed with independent sample t test, paired sample t test, and McNemar exact probability method test. Results:Six months after the last treatment, the mVSS score of scars in combined treatment group was (4.5±0.4) points, which was significantly lower than (7.8 ±0.6) points in laser alone group ( t=10.000, P<0.01). Six months after the last treatment, the mVSS scores of scars in combined treatment group and laser alone group were significantly lower than those before the first treatment [(13.5±0.7) and (13.8±0.6) points, t=8.805, 9.010, P<0.01]. The effective number of scar treatment in combined treatment group was significantly more than that in laser alone group ( P<0.05). There was no scar aggravation, infection, or other adverse reactions during the treatment of scars in both groups. Before the first treatment, the scars in both groups had large collagen, disordered arrangement, proliferation of capillaries, infiltration of some inflammatory cells, and disappearance of skin appendages. Six months after the last treatment, the scar collagen in both groups was sparse and orderly arranged, and the vascular density was reduced. The improvement of scars in combined treatment group was more obvious than that of laser alone group. Six months after the last treatment, the scar thickness in combined treatment group was significantly smaller than that in laser alone group ( t=2.657, P<0.05). Before the first treatment, the blood flow of scars in both groups was abundant; 6 months of the last treatment, the blood flow of scars in combined treatment group was significantly less than that in laser alone group. Conclusions:Fractional carbon dioxide laser combined with autologous fat injection in the treatment of hypertrophic scar after burn can significantly reduce the pain and itching symptoms of scar, and improve the thickness, texture, and congestion of scar. The combined treatment has synergistic effect and less adverse reactions, which provides a more effective treatment for patients with hypertrophic scar.
7.Effect of isocaloric meals of conjee, steamed bread, and cooked rice with different glycemic indices on glucose level in type 2 diabetes
Yanqiu CHEN ; Jianqin SUN ; Hua XIE ; Min CHEN ; Min ZONG ; Li HUA ; Zhen LI ; Qing FAN ; Qing YI ; Jiao SUN
Chinese Journal of Endocrinology and Metabolism 2012;28(4):295-297
To study the effects of conjee and cooked rice on postprandial glucose and plasma insulin levels in type 2 diatetes,and to help diabetic patients select reasonably food.41 diabetes were divided into cooked rice group ( group A),conjee with steamed bread group ( group B),and oatmeal group ( group C ).At 1 h after meal,the values of postprandial plasma glucose (PPG) was significantly lower in group C than those in group A and group B [ ( 11.17± 2.30 vs 12.88 ± 1.29,13.29 ± 1.97 ) mmol/L,P < 0.05 ].At 2 h after meal,the value of PPG was significantly lower in group C than in group A [ ( 8.88 ± 2.66 vs 10.87 ± 1.63 ) mmol/L,P <0.05 ].At 1 h and 2 h after meal,there was no significant difference between the value of PPG in goup A and group B ( P>0.05 ).At 1 h after meal,the value of plasma insulin was significantly lower in group C than those in group B [ (46.02 ± 26.32 vs 88.56 ± 68.75 )μU/ml,P <0.05 ],and there was a littler higher in group B than group A ( P>0.05 ).At 2 h after meal,there was no statistical difference of plasma insulin among group A,B,C [ ( 57.10 ± 33.56,62.26 ± 24.42,54.16 ± 41.35 )μU/ml,P>0.05 ) ].Isocaloric oat food is potentially beneficial in sustaining blood glucose status and decreasing insulin secretion.It is the ideal choice for type 2 diabetes.Meanwhile,there were no statistical differences in PPG and insulin levels between the individuals taking conjee with steam bread and cooked rice.
8.Investigation on water fluoride content and water-improving defluoridation projects in endemic fluorosis areas in Jining City, Shandong Province in 2005
Hong-xu, GAO ; Yu-tao, WANG ; Zong-zhen, WANG ; Xiao-di, LU ; Tao, LI ; Li-jun, ZHAO
Chinese Journal of Endemiology 2008;27(5):526-528
Objective To investigate water fluoride content and the current status of water-improving project in Jining,Shandong Province in 2005.Methods Water fluoride content and the status of water-lmprovlng project were havestigated in Bencheng Ditrict,Liangshan and Jiaxiang Couties of Jining City.The fluoride content in drinking warer was assessed by F-ion selective electrode.Results Water fluoride contents of 671 fluorosis villages were determined.One hundred and seventy villages had water fluoride content less than or equal to 1.00 mg/L(accounting for 25.34%)and 501 villages water fluoride content higher that 1.00 mg/L(accounting for 74.66%),with the highest being 11.33 mg/L.Four hundred and ninty.seven projects were surveyed,in which 161 Projects were discarded (accounting for 32.39%),334 projeets worked well(accounting for 67.20%),and 2 pmjects worked fitfully(accounting 0.40%).Two hundreds and eighty-one projects had water fluoride content≤1.00 ms/L and 55 projects had water fluofide cantent>1.00 mg/L(aceounting for 26.82%),with the highest being 4.28 ms/L.Conclusions The situation of endemic fluorosis control is still serious in Jining City.Countermeasures for endemic fluorosis must be carried out as sppm as possible and surveillance of water-improving and defluoridation projects must be strevIsthend.
9.An experimental study of ultrasound-phoresis of Chinese herb in accelerating fracture healing
Linfeng XU ; Zhen-Yong FAN ; Jian-Yong HU ; Ya ZONG ; Li-Na CHEN ; Hua-Zhou FU ; Wei-Zhong GU ;
Chinese Journal of Physical Medicine and Rehabilitation 2003;0(07):-
Objective To explore the effect of uhrasound-phoresis of Chinese herb in the treatment of frac- ture healing on rats.Methods The animal model of femur fracture was established in 36 rats,who were divided in- to 4 groups after operation.The rats in the ultrasound group were given ultrasound treatment daily.The herbal group was given Chinese herb applied on the fracture site.The experimental group was given uhrasound-phoresis of Chinese herb on the site of fracture.The control group was housed without any treatment.All rats were sacrificed at 30 days and the bony callus were harvested and observed with histological anti immunohistoehemical examination.Results The histological examination showed that the appearance of cartilaginous and bony callus in the experimental group were earlier than those in other groups,Immunohistochemical examination showed that the expression of collagenⅠin the experimental group was significantly higher than that in ultrasound group and herbal group(P
10.Application of Stata software to test heterogeneity in Meta-analysis method
Dan WANG ; Zhen-Yun MOU ; Jun-Xia ZHAI ; Hong-Xia ZONG ; Xiao-Dong ZHAO
Chinese Journal of Epidemiology 2008;29(7):726-729
To introduce the application of Stata software to heterogeneity test in meta-analysis.A data set was set up according to the example in the study,and the corresponding commands of the methods in Stata 9 software were applied to test the example.The methods used were Q-test and Ⅰ2statistic attached to the fixed effect model forest plot,H statistic and Galbraith plot.The existence of the heterogeneity among studies could he detected hy Q-test and H statistic and the degree of the heterogeneity could be detected by,Ⅰ2 statistic.The outliers which were the sources of the heterogeneity could be spotted from the Galbraith plot.Heterogeneity test in Meta-analysis can be completed by the four methods in Stata software simply and quickly.H and Ⅰ2 statistics are more robust,and the outliers of the heterogeneity can be clearly seen in the Galbraith plot among the four methods.