1.IMPROVEMENT OF CARDIAC FUNCTION AFTER ADENOVIRUS-MEDIATED GENE TRANSFER OF ACIDIC FIBROBLAST GROWTH FACTOR TO CHRONIC ISCHEMIC MYOCARDIUM IN SWINE
Junyan GU ; Ju MEI ; Shengdon HUANG
Medical Journal of Chinese People's Liberation Army 2001;0(11):-
It has been reported that angiogenic growth factors may be useful in the treatment of ischemic heart disease. In our experiment a recombinant deficient adenovirus vector coding for aFGF was intramyocardially administrated into swines with chronic ischemic myocardium to investigate its effect on the improvement of myocardial function. In the present study, experimental minipigs underwent thoracotomy and placement of an Ameroid constrictor on the left circumflex branch coronary artery. Four weeks later, Ad.aFGF( n =7), Ad.Null( n =5) or PBS( n =6), was administrated directly into the myocardium at 10 sites in the circumflex branch distribution area (10 9 pfu or 100?l). Another four weeks later, cardiac function was examined by echocardiography and the results showed significant improvement of myocardial function in Ad.aFGF animals compared with Ad.Null and PBS animals. So such a strategy of gene therapy can be used in patients with ischemic heart disease.
2.Association betwen Mannose-binding lectin structural gene polymorphisms and susceptibility of SLE in Han Nationality population from Hubei province of China
Junyan HAN ; Yafei HUANG ; Shengtao ZHANG ; Al ET
Chinese Journal of Immunology 1985;0(06):-
0.05).Conclusion:MBL B allele is not a risk component in the developing process of SLE Chinese patients.
3.Ultrasonographic findings in gouty arthritis
Junyan CAO ; Jie REN ; Dongmei HUANG ; Rongqin ZHENG ; Qiaoyuan WANG
Chinese Journal of Ultrasonography 2011;20(12):1051-1054
ObjectiveTo explore the sonographic features of gouty arthritis.MethodsThe sonographic features of gouty arthritis were summarized by retrospectively studying the sonogram of 19 joints of 5 patients.ResultsFive the first metatarsophalangeal joints,8 knees,2 ankles,2 elbows and 2 wrists were investigated.Out of 19 joints,17(89.4%) had double contour signs,a hyperechoic and irregular band over the superficial margin of the articular cartilage.Joint effusions were seen in 13 of 19 joints (68.4%).Multiple hyperreflective foci could be seen in the joint fluid,which were obvious by shaking the probe.In 19 joints,11 (57.9 %) had proliferation of the synovium identified,and proliferative synovium were revealed as hyperperfusion or hypoperfusion by color Doppler ultrasound.In one knee,the synovium proliferated obviously with involved area about 5 cm × 2 cm,and hyperechoic aggregates with acoustic shadow could be seen in it.Articular cartilage became irregularly thin and the hyperechoic outline of subchondral bone cortex became rough or even broke in 6 of 19 joint (31.6%).H omogeneous,hyperechoic aggregates with or without acoustic shadow in the soft tissue around the joint were seen in four joints (21.1 %).Three in these 4 joints exited bone cortex erosions adjacent to aggregates.ConclusionsGouty arthritis has some specific sonographic features,ultrasound maybe usefully discover this disease in early period.
4.Application of sonography for arthrocentesis in the hip
Bowen ZHENG ; Jie REN ; Junyan CAO ; Dongmei HUANG ; Rongqin ZHENG
Chinese Journal of Ultrasonography 2012;21(1):56-59
ObjectiveTo evaluate the value of uhrasonography for arthrocentesis in the hip and the advance of the femoral head/acetabulum as the puncture location in patients without sonographically obvious joint effusion.Methods Forty-three patients diagnosed with ankylosing spondylitis or osteoarthritis were included,82 hip joints were involved and received ultrasounded-guided intra-articular injections.The puncture site was the joint space between the femoral head and the acetabulum.The times,depth,procedure time,side effects and complications of each injection were recorded.ResultsAll 82 hips could be explicitly displayed.The depths from the skin surface to the joint space were (3.4 ± 0.9)cm (left)and (3.1 ± 0.8)cm (right),respectively.Overall,100% of hip joints were punctured successfully,and 95.1% of them were succeeded with the first arthrocentesis.The procedure time was (287.9 ± 45.8) s.No side effects or complications were observed.ConclusionsThe sonographic technique could be used as a primary method of image guidance for performing hip arthrocentesis and the joint space between the femoral head and the acetabulum could be a choice of target location for the patients without joint effusion.
5.Expression of 4-hydroxynonenal in the kidney of diabetic rats and the effect of probucol
Yanfei WANG ; Liqiu LIU ; Guimei LIU ; Junyan HUANG ; Wenxuan JI
Chinese Journal of Nephrology 2013;29(9):692-697
Objective To investigate the expression of 4-hydroxynonenal (4-HNE) in the kidney of diabetic rats and the effect of probucol.Methods The rats were being intraperitoneal injected with STZ (60 mg/kg) to establish diabetic models.Then diabetic rats were randomly divided into diabetic group (group D,n =24),probucol treated group (group P,n =24).Normal rats were taken as control group (group C,n =24).Rats in group P were treated by probucol (110 mg·kg-1·d-1); rats in group D and group C were given equal volume water instead.Scr,BUN,triglyceride (TG),total cholesterol (TC) and 24-hour urinary proteinin were measured at the 4th,8th and 12th week.PAS staining and HE staining were used to evaluate the pathological changes of the kidney.The immunohistochemistry and Western blotting were used to detect the expression of 4-HNE in renal tissue.Results Levels of Scr,BUN,TG,TC and 24-hour urinary protein in group D were higher than those in group C at the 4th,8th and 12th week(all P < 0.05); Levels of Scr,BUN,TG,TC and 24-huor urinary protein in group P were lower than those in group D at 4th,8th and 12th week (all P < 0.05).The pathological changes of the kidney in group D were more serious than that in group P.The expression of 4-HNE in group D were higher than group C at the 4th,8th and 12th week (all P < 0.05);The expression of 4-HNE in the kidneys of group P decreased significantly compared to that of group D at the same time (P < 0.05).Conclusions As an indicator of lipid peroxidation,the expression of 4-HNE significantly increases in the kidney of diabetic rat.Probucol may protect the diabetic kidney through decreasing the expression of 4-HNE and the level of lipid peroxidation.
6.The protective effect of hydroxytyrosol on contrast-induced nephropathy and endoplasmic reticulum stress
Yan SUN ; Wenxuan JI ; Wenhong SHAN ; Guimei LIU ; Junyan HUANG
Chinese Journal of Nephrology 2015;31(5):387-392
Objective To investigate the expression of glucose-regulated protein 78(GRP78)and cysteine aspartic acid protease 12(Caspase-12) and evaluate the endoplasmic reticulum stress (ERS) in rats with contrast-induced nephropathy (CIN),and observe the protective effects of hydroxytyrosol on CIN rats.Methods Eighty-four Wistar rats,(220±20) g,were randomly divided into control group,CIN group,hydroxytyrosol treated group (group C+H).At 12th,24th,48th,72th day after the rats model were established,BUN and Scr were detected.ELISA were used to detect the expression of methane dicarboxylic aldehyde (MDA),superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px).HE staining were used to evaluate the pathological change of kidney.TUNEL were used to detect the apoptosis of tubular ceils.Real-time PCR were used to detect the expression of GRP78 mRNA and Caspase-12 mRNA in tubular cells.Immunohistochemistry and Western blotting were used to detect the expression of GRP78 and Caspase-12 protein in tubular cells.Results BUN,Scr,the mRNA and protein expression of GRP78,Caspase-12 in hydroxytyrosol treated group were higher than that in control group(P < 0.05),but were significantly lower than that in CIN group (P < 0.05).Pathological changes and the apoptosis of tubular cells in CIN group were more serious than that in hydroxytyrosol treated group (P < 0.05).Conclusions Endoplasmic reticulum stress may be associated with contrast-induced nephropathy.Hydroxytyrosol can protect kidney from contrast medium via reducing the endoplasmic reticulum stress.
7.DHA promotes NGF-induced neuronal differentiation in PC12 cells via activating BMP pathway
Xin ZHOU ; Baoyan SHI ; Kefeng WU ; Xiang GAO ; Junyan HUANG ; Ren HUANG ; Wende LI
Chinese Pharmacological Bulletin 2014;(9):1247-1251
Aim To investigate the effect of DHA on NGF-induced neuronal differentiation of PC12 cells and explore the possible mechanism via regulating BMP pathway. Methods PC12 cells were treated with 100μg·L-1 NGF and 100 μg·L-1 NGF + 10 μmol· L-1 DHA for 3, 6 and 9 days respectively. The length and number of neurite were detected by immunofluores-cenc. DHA content was analyzed by gas chromatogra-phy in all groups. The protein expression of BMP4, BMP7 , BMPR-II and p-Smad 1/5/8 was determined by Western blot. Results The length of total primary neurite in NGF+DHA groups was obviously increased, longer than that in NGF group; DHA content in 10μmol · L-1 DHA group was higher than that in the control group;NGF+DHA groups also unregulated the protein expression of BMP4 , BMP7 , BMPR-II and p-Smad 1/5/8 . Conclusion DHA promotes NGF-in-duced neuronal differentiation in PC12 cells, which may be associated with the upregulation of BMP path-way protein.
8.Analysis of factors influenceing patients' family to make decision to reject resuscitation to the patients
Jike XUE ; Shouquan CHEN ; Zhangping LI ; Huiping LI ; Weijia HUANG ; Junyan CHENG ; Jie ZHANG ; Ping YAN
Chinese Journal of Emergency Medicine 2009;18(11):1211-1214
Objective To study the factors influenceing patients' family members to make own relative fac-tors patients' families making decision on refusal of cardiopulmonary resuscitation (CPR) to the critical patients. Method Data were registered based on Utstein Style of 522 patients aged over 15 years, who subjected to in-hos-pital cardiac arrest(CA) in Department of Emergency of The First Affiliated Hospital of Wenzhou Medical College from January 2005 to December 2008. A total of 157 patients' family made refusal decision among the 522 pa-tients, who belonged to the refusal group, and others belonged to the attempt resuscitation group. The associated factors included age, sex, marriage, household register, cause of CA, underlying diseases, capability of activity before CA, life supported with mechanical ventilation, and administration of pressor agents. The refusal decisions were evaluated by using univariate Logistical regression analysis, and then the statistical significant variables were analyzed by using muhivanate Logistical regression analysis. Results Age, household register, cause of CA(car-diac or traumatic),stroke, sudden death, cancer, capability of activity before CA, life supported with mechanical ventilation,and administration of pressor agents were the important factors of making refusal decision (P < 0.01), but sexes or marriage was insignificant related to the refusal decision (P > 0. O5). The independent risk factors re-lated to refusal decision were age (P = 0.034),cancer (P = 0.006),stroke (P = 0.003), and life supported with mechanical ventilation (P = 0.000) in multivariate Logistical regression analysis, but the protective factors were sudden death (P =0.000),cardiac CA (P =0.020) and traumatic CA(P =0.000). Conclusions Age over 60 years, cancer, stroke, and life suppoted with assisted ventilation before CA were factors associated with re-fusal decision making, yet sudden death, cardiac CA and traumatic CA were factors of accepting CPR.
9.Safety of autologous blood component transfusion during cesarean section in patients with Rh(D)-negative blood group
Chunbo ZHOU ; Song YE ; Haiya YAN ; Tan ZHANG ; Qiaobo HUANG ; Junyan CHEN ; Zhiqiang SUN
Chinese Journal of Anesthesiology 2011;31(2):226-229
Objective To investigate the safety of autologous blood component transfusion during cesarean section in patients with Rh (D)-negative blood group.Methods Thirty ASA Ⅰ or Ⅱ patients of Rh (D)-negative blood group, aged 20-35 yr, weighing 50-80 kg, undergoing elective cesarean section, were enrolled in this study.After lactated Ringer' s solution 7 ml/kg was infused, blood was obtained from radial artery at a rate of 60-80ml/min, and blood volume was maintained by simultaneous infusion of 6% hydroxyethyl starch 130/0.4 at the same rate. The collected blood was subjected to two cycles of autologous blood component separation. Blood collecting during each cycle was stopped 15 s after red blood cells were separated. The autologous blood was infused when the blood loss≥20% of blood volume. The autologous blood was infused after suture of the uterus when the blood loss < 20% of blood volume. The parameters of maternal vital signs and fetal heart rate were monitored. Hypotension and tachycardia were recorded during autologous blood collecting. SpO2 was monitored routinely. Venous blood samples were taken before blood collecting (baseline), at the end of blood collecting, before autologous blood transfusion, 24 h after operation for determination of Hb, Hct, Plt, PT, APTT, INR and Fib. Umbilical arterial blood samples were obtained after delivery for blood gas analysis. Apgar score was recorded at 1 and 5 min after birth. Blood loss and allogeneic blood transfusion were also recorded. Results No hypotension and tachycardia occurred during the process of blood collecting and the fetal heart rate was within the normal range. Compared with the baseline value, there were no significant differences in SpO2 , Hb, Hct, Plt, PT, APTT, INR and FIB value at the other time points. The pH value and concentrations of base excess and lactate were within the normal range.The Apgar score was (9.0 ±0.8) and (9.2 ± 0.8) at 1 and 5 min after birth respectively. The blood loss during operation was (405 ± 28) ml and no patients received homologous blood transfusion. Conclusion The safety of autologous blood component transfusion is good during cesarean section in Rh (D)-negative blood group patients.
10.Effect of valproic acid on inflammatory response after traumatic brain injury in rats
Guan WEI ; Qingjiang LIN ; Bingji CHEN ; Wendong SUN ; Xiaolei HUANG ; Xiangrong CHEN ; Junyan CHEN
Chinese Journal of Emergency Medicine 2017;26(3):313-317
Objective To investigate the effects and mechanisms of valproic acid on brain edema,neurobehavioral outcome and inflammatory response after traumatic brain injury (TBI) in rats.Methods TBI animal models were established using Feeney's method.Fifty-four SD male rats,weighting 220-250 g,were randomly divided into 3 groups (n =18):sham operation group (group sham),traumatic brain injury group (group TBI) and valproic acid treatment group (group TBI + VPA).Experimental rats were treated with valproic acid (300 mg/kg,twice daily) by intraperitoneal injection.Rat behavioral outcomes were measured by modified neurologic severity score (mNSS) tests at day 1,3,and 7 after TBI.Brain water content was measured with wet-dry weight method.The blood cells infiltration into cerebral cortex were tested with immunohistochemistry staining against ED-1 for macrophage.Inflammatory cytokines (INF-γ,tumor necrosis factor-α,interleukin-6) were measured by Western blotting.The statistical analysis were performed by ANOVA and chi-square tests using the statistical software program SPSS 13.0.Results Compared with the Sham group,the levels of brain edema,mNSS and macrophage cell infiltration were significantly increased after TBI (all P =0.00).The expressions of inflammatory cytokines were also increased significantly (all P =0.00).Compared with the TBI group,TBI + VAP group had significantly lower brain water content[3day:(80.12 ±0.59)% vs.(82.14 ±0.67)%,P=0.04;7day:(74.74 ±0.72)% vs.(77.93 ±0.48)%,P=0.01],and mNSS scores [3 day:(10.53 ±0.32) vs.(11.74 ±0.48),P =0.02;7 day:(7.97 ± 0.32) vs.(10.73 ± 0.42),P =0.01].VPA suppressed macrophage cell infiltration into cerebral cortex [(36.44 ± 0.72) % vs.(25.93 ± 0.48) % P =0.00].Meanwhile,VPA inhibited the expressions of inflammatory cytokines (INF-γ,TNF-α,IL-6) (P < 0.05).Conclusions Treatment with VPA markedly reduced brain edema and improved neurological outcomes after TBI,possibly mediated by inhibited TBI-induced cerebral inflammatory responses and macrophage cell infiltrating into cerebral cortex.