Objective To find out the distribution of the subunit of Gs proteins (GNAS1) T393C polymorphism genetic in congestive heart failure patients and to investigate the effects of genetic polymorphisms on the therapeutic efficacy of carvedlol. Methods Genotype of 65 patients with congestive heart failure (heart function was ranked Ⅱ~Ⅳ level by NYHA) underwent PCR-RFLP for GNAS1 polymorphism genetic analysis, and then were treated with carvedlol. The initial dosage of carvedlol was 12.5 mg once daily in patients , and increased by 6.25 mg every 1 ~ 2 weeks for 12 months to a maximum dosage within 50 mg/d. Degree of LVEF changes and heart function improvement was adopted as measuring index , effect of Gs proteins α subunit T393C genetic polymorphism on carvedlol response in congestive heart failure patients was analyzed. Results After carvedlol treatment for 12 months , NYHA class distribution and LVEF in congestive heart failure patients improved significantly (P < 0.05). After carvedlol treatment for 6 months and 12 months mutation symptoms patients′ heart function improved significantly (P < 0.05) and LVEF increased significantly (P < 0.01). Conclusions GNAS1 T393C genetic polymorphism can influence the therapeutic efficacy of carvedlol in chronic congestive heart failure patients. 393 homozygous mutant and mutated symptoms patients′ heart improved more obviously and their LVEF improved more significantly.

Objective]The aim of this study was to investigate the level of serum C3,C4 and HDL-C in patients with coronary heart disease and the correlation between C3,C4 and HDL-C in patients with coronary heart disease.[Methods]We collected 251 cases of patient diagnosed with coronary artery disease by coronary angiography in Sun Yat-sen Memorial Hospital ,Sun Yat-Sen University from 2015-12 to 2016-07 and collected over our Boji Medical Center healthy people in 214 cases. These patients were divided into acute coronary syndrome group with 180 cases and stable coronary heart disease group with 71 cases. Each test results was adopted from clinical laboratory of Sun Yat-Sen Memorial Hospital ,Sun Yat-Sen University.[Results]Compared with the healthy control ,the difference of serum C3,C4 and HDL-C from acute coronary syndrome group and stable coronary heart disease group,was statistically significant(P<0.05). However,in patients with acute coronary syndrome and stable coronary artery disease groups,there was no significant correlation(P > 0.05)between C3,C4 and HDL-C. In healthy group,complement C3 negatively correlated with HDL-C,the difference was statistically significant(P<0.05).[Conclusions]In patients with coronary heart disease, the level of C3 and C4 increased,while the level of HDL-C decreased ,and inflammation may affect the relevance judgments between complement and HDL-C.

Objective Transesophageal Doppler monitoring ( TDM) has been widely applied to fluid therapy in some major op-erations but rarely used in aortic valve replacement.The purpose of this study was to assess the value of TDM in fluid therapy, vasoactive drugs use, and left ventricular function in patients undergoing aorta valve replacement after cardiopulmonary bypass. Methods This study included 40 patients undergoing aotic valve replacement after cardiopulmonary bypass in Anhui Provincial Hospital from March 2014 to June 2015, which were randomly assigned to a TDM and a control group of equal number.TDM was used for the guidance of fluid infu-sion and vasoactive drug administration for the patients in the former group, while central venous pressure, mean arterial pressure, and heart rate were employed for those in the latter.The fluid volume infused, urine volume, blood loss, hemodynamics, arterial blood lac-tate, and outcomes were compared between the two groups. Results Compared with the control, the TDM group showed significantly increases in the colloidal fluid volume ([303 ±60] vs [373 ±65]mL, P<0.05), crystal fluid volume ([533 ±87] vs [596 ±83]mL, P<0.05), and urine volume ([274 ±95] vs [338 ±84]mL, P<0.05), but remarkable decreases in the red blood cell count, blood plasma vol-ume, postoperative extubation time, doses of dopamine and dobu-tamine, and length of hospital stay (all P<0.05).The hemodynamics were more stable and arterial blood lactate was lower in the TDM group than in the control (P<0.05). Conclusio n Transesophageal Doppler monitoring can timely and exactly manifest the hemodynamic changes and left ventricular function of the patient undergoing aotic valve replacement and provide precise guidance for fluid therapy and vasoactive drug administration.

AIM:To investigate the effects of human induced pluripotent stem cell-derived exosomes (hiPSC-exo) on cell viability, capillary-like structure formation , and senescence in endothelial cells exposed to high glucose .METHODS: Exosomes were isolated from the conditional medium of hiPSCs and confirmed by transmission electron microscopy , nanoparticle tracking analysis , and Western blot analysis using Alix and CD63 as markers.hiPSC-exo were labeled with PKH26 for tracking.Cultured HUVECs were treated with high glucose (33 mmol/L) with or without hiPSC-exo (20 mg/L) for 48 h, and cell viability, capillary tube formation, and senescence were assessed .RESULTS:hiPSC-exo showed a typical cup shape and could be taken up by human umbilical vascular endothelial cells (HUVECs) in a concentration-dependent manner.When exposed to high glucose, viability and tube formation in HUVECs was signifi-cantly reduced, whereas the proportion of senescent cells was higher compared to that in control HUVECs (P<0.01).Furthermore, hiPSC-exo restored cell viability and capillary-like structure formation , and reduced senescence in HUVECs exposed to high glucose (P<0.01).However, hiPSC-exo had minimal effects on normal HUVECs.Therefore, stem cell-derived exosomes can promote cell proliferation, enhance capillary-like structure formation , and reduce senescence in endothelial cells exposed to high glucose . CONCLUSION:Our study highlights the role of exosomes derived from hiPSC and may provide a new strategy for maintaining vascular health, preventing vascular aging , and avoiding pathological vascular remodeling that occurs in many diseases .

Cinnamomum migao plants often face different degrees of drought in karst habitats, which can lead to plants’ death, especially in the seedling stage. Widespread of arbuscular mycorrhizal (AM) fungi in karst soils have the potential to address this drought, which is a threat to C. migao seedlings. We inoculated C. migao seedlings with spores from Glomus lamellosum and Glomus etunicatum, two AM fungi widely distributed in karst soils, to observe seedling growth response after simulated drought. Our results showed that 40 g of G. lamellosum and G. etunicatum significantly promoted the growth of C. migao seedlings, 120 days after inoculation. Following a 15-day drought treatment, root colonization of the seedlings with G. lamellosum or G. etunicatum had lower the accumulation of malondialdehyde (MDA) and increased the accumulation of enzymes and osmotic substances in the seedlings. The relative water content in different organs (roots, stems, and leaves) of the drought-stressed seedlings was higher in plants with G. lamellosum or G. etunicatum than in plants without AM fungi colonization. Our results showed that inoculation with AM fungi was an effective means to improve the drought resistance of C. migao seedlings.

Cinnamomum migao plants often face different degrees of drought in karst habitats, which can lead to plants’ death, especially in the seedling stage. Widespread of arbuscular mycorrhizal (AM) fungi in karst soils have the potential to address this drought, which is a threat to C. migao seedlings. We inoculated C. migao seedlings with spores from Glomus lamellosum and Glomus etunicatum, two AM fungi widely distributed in karst soils, to observe seedling growth response after simulated drought. Our results showed that 40 g of G. lamellosum and G. etunicatum significantly promoted the growth of C. migao seedlings, 120 days after inoculation. Following a 15-day drought treatment, root colonization of the seedlings with G. lamellosum or G. etunicatum had lower the accumulation of malondialdehyde (MDA) and increased the accumulation of enzymes and osmotic substances in the seedlings. The relative water content in different organs (roots, stems, and leaves) of the drought-stressed seedlings was higher in plants with G. lamellosum or G. etunicatum than in plants without AM fungi colonization. Our results showed that inoculation with AM fungi was an effective means to improve the drought resistance of C. migao seedlings.

OBJECTIVE： To systematically evaluate the efficacy and safety of Endostar combined with gemcitabine and cisplatin in the treatment of non-small cell lung cancer （NSCLC）， and to provide evidence-based reference for clinical drug use. METHODS： Retrieved from Cochrane Library， PubMed， Embase， ClinicalTrials， CNKI， Wanfang and VIP database， randomized controlled trials （RCT） about Endostar combined with gemcitabine and cisplatin（trial  group） vs. gemcitabine combined with cisplatin （control group） for NSCLC were collected. After literature screening， data extraction and quality evaluation with Cochrane 5.1.0 bias risk evaluation tool and Jadad scale， Meta-analysis was performed by using Rev Man 5.3 software. RESULTS： A total of 27 RCTs were included， involving 1 646 patients. Results of Meta-analysis showed that response rate [RR＝1.67， 95％CI（1.48，1.89），P＜0.000 01] and clinical benefit rate [RR＝1.26， 95％CI （1.20， 1.33），P＜0.000 01] of trial group were significantly higher than those of control group. There was no statistical significance in the incidence of leucopenia [RR＝0.98，95％CI（0.88， 1.11），P＝0.79]， thrombocytopenia [RR＝1.07， 95％CI（0.91， 1.26），P＝0.39] and gastrointestinal reaction [RR＝1.01， 95％CI（0.90， 1.14），P＝0.85] between 2 groups. CONCLUSIONS： Endostar combined with gemcitabine and cisplatin can improve therapeutic efficacy of NSCLC patients， without increasing the incidence of ADR.