Objective To observe the clinical efficacy of electroacupuncture at Zusanli (ST36) and Diji (SP8) in easing pain after Caesarean section (C-section) and the safety of the treatment. Method Sixty patients going to receive lower-uterine-segment C-section were enrolled and randomized into two groups. The control group was intervened by patient-controlled intravenous analgesia (PCIA) with Sufentanil after the surgery, while the treatment group was intervened by 30-minute electroacupuncture (EA) after the surgery. The contents of blood β-endorphin (β-EP), 5-hydroxytryptamine (5-HT) and prostaglandin E2 (PGE2) were evaluated at several time points: prior to EA (T1), 2 h after the surgery (T2), 12 h after the surgery (T3), 24 h after the surgery (T4) and 48 h after the surgery (T5). Visual Analogue Scale (VAS) was adopted to measure pain intensity at T2, T3, T4 and T5. The therapeutic efficacy, safety level and adverse reactions were recorded at each time point. Result The VAS score was significantly lower in the treatment group than in the control group at T2, T3 and T4 (P<0.05). The content of plasma β-EP in the treatment group was significantly increased compared to that in the control group at T3, T4, and T5 (P<0.05). The contents of plasma 5-HT and PGE2 in the treatment group were significantly decreased compared to those in the control group (P<0.05). In the control group, the contents of 5-HT and PGE2 at T2, T3, and T4 were significantly higher than those at T1 (P<0.05); in the treatment group, the content of β-EP at T3, T4 and T5 wassignificantly higher than that at T1 (P<0.05). There were no significant intra-group differences in comparing the contents of PGE2 and 5-HT at each time point in the treatment group (P>0.05). Regarding the efficacy evaluation, the excellent rate was 86.7% in the treatment group 2 h after the surgery, significantly higher than 60.0% in the control group (P<0.05). The security level in the treatment group was markedly higher than that in the control group (P< 0.05). Conclusion EA can provide a safe and effective post-operation analgesia for C-section, and the possible mechanism is that EA at Zusanli and Diji increases the secretion of β-EP and inhibits the release of inflammatory mediators 5-HT and PGE2.

Premature ventricular complex (PVC)-induced cardiomyopathy is due to frequent PVCs and it can be potentially reversible in selected patients resolves after catheter ablation.PVCs burden is importantly associated with impaired left ventricular(LV) function.Necessary evaluation is important for PVCs patients.For patients with high PVC burdens above 15％-25％ of the total cardiac beats in 24 hours,medical treatment should be used to reduce PVC burden and to improve LV function.Catheter ablation of PVCs is recommended for selected patients with high PVC burdens associated with a decline in LV systolic function.

Objective To explore the effects of drugs on functions of mitochondria in retinal nerve cells, and to lay a foundation of the investigation of drug protection for retinal nerve cells. Methods Cultivation of the retinal nerve cells of 8 eyes of neonatal calves was performed. The changes of fluorescent density of the mitochondria of cultured cells labeled by dye rhodamine 123 (Rh123) before and after the activation of the medicines, including ferulic acid (FA), arginine, glycine, taurine, vitamine E and brain-derived neurotrophic factor (BDNF) respectively, were detected by laser-scanning confocal microscopy. Results FA with the concentration of 500 ?g/ml led the diphasic variation of the fluorescent intensity of mitochondria. After scanning for 60.772 seconds when treated with FA firstly, the fluorescent intensity decreased rapidly (from 45.425?4.153 to 22.135?5.293); while after 112.774 seconds when treated secondly, the intensity increased obviously (from 19.655?4.383 to 28.247?4.764), and after 168.773 seconds when treated thirdly the intensity still increased. After scanning for 56.457 seconds when treated with vitamin E (12.5 mg/ml), the fluorescent intensity increased obviously (from 88.255?5.039 to 111.273?4.529), which suggested that vitamin E with the concentration of 12.5 mg/ml strengthen the fluorescent intensity. After scanning for 58.147 and 134.148 seconds when treated with BDNF (50 ng/ml) respectively, the fluorescent intensity increased obviously (from 69.115?5.038 to 77.225?5.131) which suggested that BDNF with the concentration of 50 ng/ml led the increase of the fluorescent intensity. Glycine (2.5 mg/ml) and arginine(30 mg/ml) didn't affect the fluorescent intensity of mitochondria, and taurine (6.25 mg/ml) caused the appreciable decrease of the fluorescent intensity. Conclusion FA, BDNF and vitamin E may promote the metabolism of retinal nerve cells via the path of mitochondria, while amino acids may adjust the activation of retinal nerve cells through other ways.

Objective To investigate the changes of cellular configuration and polarized characteristic of visual pigment during the development of rod cells of neonatal calf in vitro. Methods Retinal cells of neonatal calf were dissociated and cultivated for 10, 20, 30 and 40 days in vitro were used for immunocytochemical analysis. Retinal rod cells were identified by rho4D2 antibody. The configuration of positive cells and rhodopsin molecular distribution were analysed at different cultivated time. The immuno-reactivity of positive cells was measured by image analysis system. Results The rho4D2 immuno-reactive cells included small round cells without protuberance and the cells with protuberance at the peak. At the 10th day after cultivation, the visual pigment immunoreaction was suffusive in the whole cell membrane and apical process; while at the 30th and 40th day, it gathered at the membrane of apical process or one pole of the cells. The results of quantitative analysis showed that the immunoreactive intensity of positive cells at the 20th day after cultivation was stronger than that at the 10th day; while there was no significant difference among the immunoreactive intensity at the 20th, 30th, and 40th day. Conclusions Rod cells at the 30th and 40th day after cultivation have the polarized characterization and visual pigment molecular distribution with high level of expressive ability of protein, which are mature neurons.

Objective To study on the ultrastructural characteristic of segments of photoreceptors from neonatal retinas for supporting donor retina choice of retinal transplantation. Methods Photoreceptors from neonatal calf and adult calf were analysed by scanning electron microscopy and transmission electron microscopy. Results Segments of photoreceptors from neonatal calf appeared the mushroom pattern, in which, distal end of outer segment which was ball shaped formed the head with mushrooms appea rance, and the inner segments along with some of outer segments formed the body with mushrooms appea rance. Within the outer segment, plasma membranes of adjacent evaginations form a disk subsequently. The array of most disks were vertical to the entire length of segments, but some were parallel and slope to. Owing to the incomplete formation, some rim of disk near distal end of outer segment revealed step shaped appearance. The distal end of outer segment displays some processes consisted of membranous discs, much vesicular material and mitochondria, much rough endoplasmic reticulum (RER) and numerous polysomes. Segments of photoreceptor connected with outer nuclear layer via the external limiting membrane. Conclusion The typical morphological structures of outer segments suggest the immature and strong gowth ability of photoreceptors of the retina of neonatal calf, and therefore the competence for donor material of retinal transplantation.

AIM: To estabish a RP-HPLC method for determing geniposidic acid、chlorogenic acid、geniposide in Duzhong Pingya Tablet(Folium Eucommiae).METHODS:Geniposidic acid,chlorogenic acid and geniposide were analysed by using C_(18) column with the mobile phase of methanol-water-aceacid(15∶85∶1.5) at the flow rate of 1 mL/min,the detective wavelength was set at 237 nm. RESULTS: The analytical had good linearity.The precision of geniposidic acid,chlorogenic acid and geniposide were 1.93%、1.50%、1.66%,respectively and the recoveries were 97.3%,97.2%,96.7%,respectively. CONCLUSION: This method is simple,quick and reproducible and could be used for the determination of three constituents in Duzhong Pingya Tablet.

AIM:Todetecttheeffectofspironolactoneonhyperthyroxine-inducedatrialremodeling.METH-ODS:New Zealand rabbits were divided into control group ( C ) , hyperthyroxine group ( H ) and spironolactone group ( S) .Thyroxin was given to the rabbits in group H and group S by intraperitoneal injection for 4 weeks , and then spirono-lactone was given in group S by gavage for 2 weeks.Atrial fibrillation (AF) was induced by burststimulation after ad-ministration.The inducing rate of AF and atrial effective refractory period ( AERP) were tested by intra-cardiac electro-physiologic instrument.The expression of AF-related Ca2+channel (Cav1.2), K+channels (Kv1.5 and Kv4.3) and con-nexins (Cx40 and Cx43) at mRNA and protein levels was detected by real-time PCR, immunohistochemistry and Western blot.RESULTS:Spironolactone reduced the inducing rate of AF .No significant difference of AERP between group H and group S was observed (P>0.05).Compared with group H, the protein expression of Cav1.2 was significant increased in group S (P<0.05).The expression of Kv1.5 at mRNA and protein levels in group S was significantly lower than that in group H (P<0.05), while the protein expression of Kv4.3 in group S was significantly decreased compared with group H (P<0.05).The mRNA expression of Cx43 in group S was significantly decreased compared with group H (P<0.01), whereas the protein expression of Cx 40 in group H was significantly higher than that in group S ( P<0.05 ) .CONCLU-SION:Spironolactone attenuates the hyperthyroxine-induced atrial remodeling in rabbits , and reduces the susceptibility of the myocardium to AF .

Laiminin,which has been found 15 isoforms up to today,is a kind of noncollagen glycoprotein of extracellular matrix.However,the functions of laminin varis from each other,which mainly takes participation in the process of the cell adherence,migration,differentiation,growth,cell signaling and tissue repair in vivo.In recent years,some scholars have found that laminin plays an important role in angiogenesis.The purpose of this article is to summarize the role of laminin in angiogensis and sum up the current research progress.

ObjectiveTo evaluate clinical value of evidence-based nursing intervention in treatment of elderly patients with cardiovascular interventional surgery during perioperative period. Methods 150 cases of elderly patients with cardiovascular diseases who underwent interventional surgical treatment were selected.They were randomly divided into the observation group(80 cases)and the control group(70 patients). ResultsThe occurrence and degree of discomfort of bedridden patients in the observation group were milder,and the complications due to use of anticoagulants and pressing dressing were significantly less than the control group.The satisfaction degree and mastering of disease related knowledge in the observation group were significantly better than that of the control group. ConclusionsApplication of evidence-based nursing intervention during perioperative period for elderly patients with cardiovascular interventional surgery can reduce discomfort and complications of patients,as well as improve satisfaction degree and mastering of disease-related knowledge of patients and their families,which is worthy of promotion.

Objective: To investigate the effect of psychological intervention on mental health status in women who accepted artificial abortion.Methods: 576 cases of women accepted artificial abortion were randomly divided into psychological intervention group and control group,and evaluated their psychological state before artificial abortion and at first visit with SCL-90.Results: Compared with control group,psychological intervention group had obvious improvement in mental health states(P