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| 1 | A rapid advice guideline for the diagnosis and treatment of 2019 novel coronavirus(2019-nCoV) infected pneumonia(standard version)显示文摘In December 2019, a new type viral pneumonia cases occurred in Wuhan, Hubei Province;and then named '2019 novel coronavirus(2019-nCoV)' by the World Health Organization(WHO) on 12 January 2020. For it is a never been experienced respiratory disease before and with infection ability widely and quickly, it attracted the world’s attention but without treatment and control manual. For the request from frontline clinicians and public health professionals of 2019-nCoV infected pneumonia management, an evidence-based guideline urgently needs to be developed. Therefore, we drafted this guideline according to the rapid advice guidelines methodology and general rules of WHO guideline development;we also added the first-hand management data of Zhongnan Hospital of Wuhan University. This guideline includes the guideline methodology, epidemiological characteristics, disease screening and population prevention, diagnosis, treatment and control(including traditional Chinese Medicine), nosocomial infection prevention and control, and disease nursing of the 2019-nCoV. Moreover, we also provide a whole process of a successful treatment case of the severe 2019-nCoV infected pneumonia and experience and lessons of hospital rescue for 2019-nCoV infections. This rapid advice guideline is suitable for the first frontline doctors and nurses, managers of hospitals and healthcare sections, community residents, public health persons, relevant researchers, and all person who are interested in the 2019-nCoV. | Ying-Hui Jin Lin Cai Zhen-Shun Cheng Hong Cheng Tong Deng Yi-Pin Fan Cheng Fang Di Huang Lu-Qi Huang Qiao Huang Yong Han Bo Hu Fen Hu Bing-Hui Li Yi-Rong Li Ke Liang Li-Kai Lin Li-Sha Luo Jing Ma Lin-Lu Ma Zhi-Yong Peng Yun-Bao Pan Zhen-Yu Pan Xue-Qun Ren Hui-Min Sun Ying Wang Yun-Yun Wang Hong Weng Chao-Jie Wei Dong-Fang Wu Jian Xia Yong Xiong Hai-Bo Xu Xiao-Mei Yao Yu-Feng Yuan Tai-Sheng Ye Xiao-Chun Zhang Ying-Wen Zhang Yin-Gao Zhang Hua-Min Zhang Yan Zhao Ming-Juan Zhao Hao Zi Xian-Tao Zeng Yong-Yan Wang Xing-Huan Wang 无 | 2020 | Military Medical Research2020,7,1: | 161 |
| 2 | Study on the functional changes of BK_(Ca) channels in human vascular smooth muscle cells from Han Chinese patients with hypertension显示文摘Chronic hypertension is associated with an impaired vascular relaxation due to an increased vascular tone.However,the underlying mechanisms are not fully understood in human patients.The present study was to inves-tigate whether large conductance Ca2+-and voltage-activated K+(BKCa)channels are involved in | Yang Yan Li Pengyun Cheng Jun Mao Liang Wen Jing Tan Xiaoqiu Liu Zhifei Zeng Xiaorong | 2013 | 泸州医学院学报2013,36,3: | 31 |
| 3 | Chinese Multidisciplinary Expert Consensus on the Diagnosis and Treatment of Hyperuricemia and Related Diseases显示文摘 | Zou, He-Jian Wu, Hu-Sheng Zhou, Jing-Guo Zeng, Xue-Jun Dai, Lie Wu, Hua-Xiang Zhu, Xiao-Xia Mei, Chang-Lin Hao, Chuan-Ming Chen, Nan Liu, Bi-Cheng Chen, Jiang-Hua Yang, Li Nie, Jing Yu, Chen Peng, Ai Yu, Sheng-Qiang Li, Lin Ge, Jun-Bo Huo, Yong Zhang, Shu-Yang Chen, Yun-Dai Dong, Yu-Gang Liang, Chun Dai, Yu-Xiang Gao, Xin Li, Chang-Gui Zhao, Jia-Jun Chen, Hai-Bing Cheng, Zhi-Feng Lin, Huan-Dong Guan, Yang-Tai Wang, Kai Luo, Ben-Yan Dai, Ruo-Lian Jiang, Quan Xue, Luan Liang, Chao-Chao Chen, Ming Fan, Song | 2017 | Chinese Medical Journal2017,,20: | 30 |
| 4 | Clinicopathologic characteristics and prognosis of gastroenteropancreatic neuroendocrine neoplasms: a multicenter study in South China显示文摘Background: Gastroenteropancreatic neuroendocrine neoplasms(GEP-NENs) are a heterogeneous group of rare tumors. Many issues in terms of epidemiologic features, pathogenesis, and treatment of GEP-NENs are still under discussion. Our study aimed to analyze the clinicopathologic characteristics and prognosis of Chinese patients with GEP-NENs.Methods: Complete clinicopathologic data and survival information of 1183 patients with GEP-NENs treated between 2005 and 2015 were collected from five medical centers in Guangdong Province, China. Patient survival was estimated using the Kaplan–Meier method and analyzed using the log-rank test; prognostic factors were analyzed using the Cox proportional hazards model.Results: The most common tumor location was the rectum(37.4%), followed by the pancreas(28.1%), stomach(20.7%), small intestine(7.2%), appendix(3.4%), and colon(3.3%). After initial definitive diagnosis, 1016(85.9%) patients underwent surgery. The 1-, 3-, and 5-year overall survival(OS) rates for the entire cohort were 87.9%, 78.5%, and 72.8%, respectively. The 3-year OS rates of patients with G1, G2, and G3 tumors were 93.1%, 82.7%, and 43.1%, respectively(P < 0.001). The 3-year OS rates of patients with stage I, II, III, and IV tumors were 96.0%, 87.3%, 64.0%, and 46.8%, respectively(P < 0.001). Patients with distant metastasis who underwent palliative surgery had a longer survival than those who did not(P = 0.003). Similar survival benefits of palliative surgery were observed in patients with neuroendocrine tumor(P y, M category, and sur= 0.031) or neuroendocrine carcinoma(P gery were found to be independent prog= 0.046). In multivariate analysis, age, grade, N categornostic factors.Conclusions: Patients with GEP-NENs who are women, younger than 50 years old, have smaller tumor size, have lower tumor grade, have lower T/N/M category, and who undergo surgery can have potentially longer survival time. Our data showed that surgery can improve the prognosis of GEP-NEN patients with distant metastasis. However, randomized controlled trials need to be conducted to establish the optimal criteria for selecting patients to undergo surgery. | Cheng Fang Wei Wang Yu Zhang Xingyu Feng Jian Sun Yujie Zeng Ye Chen Yong Li Minhu Chen Zhiwei Zhou Jie Chen | 2017 | Chinese Journal of Cancer2017,36,10: | 23 |
| 5 | Wireless Communications with Programmable Metasurface:Transceiver Design and Experimental Results显示文摘Metasurfaces have drawn significant attentions due to their superior capability in tailoring electromagnetic waves with a wide frequency range, from microwave to visible light. Recently, programmable metasurfaces have demonstrated the ability of manipulating the amplitude or phase of electromagnetic waves in a programmable manner in real time, which renders them especially appealing in the applications of wireless communications. In this paper, we present the fundamental principle of applying programmable metasurface as transmitter for wireless communications. Then, we establish a prototype system of metasurface-based transmitter to conduct several experiments and measurements over the air, which practically demonstrate the feasibility of using programmable metasurfaces in future communication systems. By exploiting the dynamically controllable property of programmable metasurface, the design, implementation and experimental evaluation of the proposed metasurface-based wireless communication system are presented with the prototype, which realizes single carrier quadrature phase shift keying(QPSK) transmission over the air. In the developed prototype, the phase of the reflected electromagnetic wave of programma-ble metasurface is directly manipulated in real time according to the baseband control signal, which achieves 2.048 Mbps data transfer rate with video streaming transmission over the air. In addition, experimental result is provided to compare the performance of the proposed metasurface-based architecture against the conventional one. With the slight increase of the transmit power by 5 dB, the same bit error rate(BER) performance can be achieved as the conventional system in the absence of channel coding. Such a result is encouraging considering that the metasurface-based system has the advantages of low hardware cost and simple structure, thus leading to a promising new architecture for wireless communications. | Wankai Tang Xiang Li Jun Yan Dai Shi Jin Yong Zeng Qiang Cheng Tie Jun Cui | 2019 | China Communications2019,16,5: | 23 |
| 6 | Photodynamic therapy guidelines for the management of oral leucoplakia显示文摘With recent developments in photosensitizers and light delivery systems,topical 5-aminolevulinic acid-mediated photodynamic therapy (ALA-PDT) has become the fourth alternative therapeutic approach in the management of oral leucoplakia (OLK) due to its minimally invasive nature,efficacy,and low risk of systemic side effects and disfigurement.This report presents step-by-step guidelines for applying topical ALA-PDT in the management of OLK based on both the clinical experience of the authors and a systematic review of the current literature.Studies using protocols with standardized parameters and randomized clinical trials at multiple centres with adequate sample sizes and both interim and long-term follow-ups are needed before universally applicable guidelines can be produced in this field. | Qianming Chen Hongxia Dan Fan Tang Jiongke Wang Xiaoying Li Junxin Cheng Hang Zhao Xin Zeng | 2019 | International Journal of Oral Science2019,11,2: | 18 |
| 7 | Persistence of hepatitis B vaccine immune protection and response to hepatitis B booster immunization显示文摘AbstractAIMToidentifythepersistenceofimmuneprotectionofChinamade,plasmaderivedhepatitisBvaccineafterinfancyimmunizationandt... | LI Hui 1, LI Rong Cheng 2, LIAO Su Su 1, YANG Jin Ye 2, ZENG Xian Jia 1 and WANG Shu Sheng 2 | 1998 | World Journal of Gastroenterology1998,4,6: | 15 |
| 8 | Endometriosis Fertility Index for Predicting Pregnancy after Endometriosis Surgery显示文摘 | Xin Li Cheng Zeng Ying-Fang Zhou Hui-Xia Yang Jing Shang Sai-Nan Zhu Qing Xue | 2017 | Chinese Medical Journal2017,,16: | 15 |
| 9 | Integration of Metabolomics and Subcellular Organelle Expression Microarray to Increase Understanding the Organic Acid Changes in Post-harvest Citrus Fruit显示文摘Citric acid plays an important role in fresh fruit favor and its adaptability to post-harvest storage conditions.In order to explore organic acid regulatory mechanisms in post-harvest citrus fruit,systematic biological analyses were conducted on stored Hirado Buntan Pummelo(HBP;Citrus grandis)fruits.High-performance capillary electrophoresis,subcellular organelle expression microarray,real-time quantitative reverse transcription polymerase chain reaction,gas chromatography mass spectrometry(GC-MS),and conventional physiological and biochemical analyses were undertaken.The results showed that the concentration of organic acids in HBP underwent a regular fuctuation.GC-MS-based metabolic profling indicated that succinic acid,g-aminobutyric acid(GABA),and glutamine contents increased,but 2-oxoglutaric acid content declined,which further confrmed that the GABA shunt may have some regulatory roles in organic acid catabolism processes.In addition,the concentration of organic acids was signifcantly correlated with senescence-related physiological processes,such as hydrogen peroxide content as well as superoxide dismutase and peroxidase activities,which showed that organic acids could be regarded as important parameters for measuring citrus fruit post-harvest senescence processes. | Xiaohua Sun Andan Zhu Shuzhen Liu Ling Sheng Qiaoli Ma Li Zhang Elsayed Mohamed Elsayed Nishawy Yunliu Zeng Juan Xu Zhaocheng Ma Yunjiang Cheng Xiuxin Deng | 2013 | Journal of Integrative Plant Biology2013,55,11: | 14 |
| 10 | A Chromosome-Level Genome Assembly of Garlic (Allium sativum) Provides Insights into Genome Evolution and Allicin Biosynthesis显示文摘Garlic,an economically important vegetable,spice,and medicinal crop,produces highly enlarged bulbs and unique organosulfur compounds.Here,we report a chromosome-level genome assembly for garlic,with a total size of approximately 16.24 Gb,as well as the annotation of 57561 predicted protein-coding genes,making garlic the first Allium species with a sequenced genome.Analysis of this garlic genome assembly reveals a recent burst of transposable elements,explaining the substantial expansion of the garlic genome.We examined the evolution of certain genes associated with the biosynthesis of allicin and inulin neoseries-type fructans,and provided new insights into the biosynthesis of these two compounds.Furthermore,a large-scale transcriptome was produced to characterize the expression patterns of garlic genes in different tissues and at various growth stages of enlarged bulbs.The reference genome and large-scale transcriptome data generated in this study provide valuable new resources for research on garlic biology and breeding. | Xiudong Sun Siyuan Zhu Ningyang Li Yi Cheng Jing Zhao Xuguang Qiao Li Lu Shiqi Liu Yanzhou Wang Chan Liu Benping Li Wu Guo Shuang Gao Zemao Yang Fu Li Zheng Zeng Qing Tang Yupeng Pan Mengjiao Guan Jian Zhao Xiaomi ng Lu Huanwe n Meng Zhenlin Han Chun she ng Gao Wenkai Jiang Xing Zhao Shilin Tian Jianguang Su Zhihui Cheng Touming Liu | 2020 | Molecular Plant2020,13,9: | 14 |
| 11 | Long-term efectiveness of infancy low-dose hepatitis B vaccine immunization in Zhuang minority area in China显示文摘METHODSTwoepidemiologicmethods,acrosssectionalfolowupstudyandacasecontrolstudy,wereusedfortheevaluationoftheserologicalef... | LI Hui 1, LI Rong Cheng 2, LIAO Su Su 1, GONG Jian 2, ZENG Xian Jia 1 and LI Yan Ping 2 | 1999 | World Journal of Gastroenterology1999,5,2: | 14 |
| 12 | In vitro corrosion resistance of layer-by-layer assembled polyacrylic acid multilayers induced Ca–P coating on magnesium alloy AZ31显示文摘Biodegradable magnesium(Mg)-based alloys have aroused great concern owing to their promising characteristics as temporary implants for orthopedic application.But their undesirably rapid corrosion rate under physiological conditions has limited the actual clinical application.This study reports the use of a novel biomimetic polyelectrolyte multilayer template,based on polyvinylpyrrolidone(PVP)and polyacrylic acid(PAA)via layerby-layer(LbL)assembly,to improve the corrosion resistance of the alloy.Surface characterization techniques(field-emission scanning electron microscopy,Fourier transform infrared(FTIR)spectrophotometer and X-ray diffractometer)confirmed the formation of biomineralized Ca–P coating on AZ31 alloy.Both hydrogen evolution and electrochemical corrosion tests demonstrated that the corrosion protection of the polyelectrolyte-induced Ca–P coating on AZ31 alloy.The formation mechanism of biomineralized Ca–P coating was proposed. | Lan-Yue Cui Shen-Cong Cheng Lu-Xian Liang Jing-Chao Zhang Shuo-Qi Li Zhen-Lin Wang Rong-Chang Zeng | 2020 | Bioactive Materials2020,5,1: | 13 |
| 13 | Liver transplantation for patients with hepatolithiasis显示文摘Because of its complicated pathological features such as repeated cholangitis and multiple operations, hepatolithiasis is difficult to treat and often lead to portal hypertension, and liver failure. The aim of this study was to investigate the indications of orthotopic liver transplantation ( OLT) for patients with hepatolithiasis and the improvement of operative techniques and the treatment of postoperative complications. METHODS:The data of 4 patients with hepatolithiasis who had undergone OLT at our department in recent years were reviewed retrospectively. RESULTS:The 4 patients with hepatolithiasis complicated with secondary biliary cirrhosis in end-stage liver disease included 1 woman and 3 men. One patient underwent OLT using veno-venous bypass prior to the mobilization of the liver. Two patients were subjected to liver transplantation with improved piggyback technique without bypass. One patient received OLT without bypass. All patients were operated on successfully and recovered uneventfully. Patient 1 had bleeding from the digestive tract on the postoperative day 6. Patient 2 had hemorrhage from the digestive tract and a leakage of end-to-side intestinal anastomosis on the postoperative day 44. Patient 4 was reoperated on because of hemorrhage from the anastomotic stoma of the hepatic artery on the postoperative days 8 and 10. In the 4 patients the mean operative time was 7.9 hours and blood loss was 910 ml. Postoperative pathological analysis revealed biliary liver cirrhosis. Follow-up of all patients showed good conditions. CONCLUSIONS:Hepatolithiasis with secondary biliary liver cirrhosis in patients with end-stage liver disease is indicated for liver transplantation. Veno-venous bypass prior to the mobilization of the liver and improved piggyback tech- nique can lower the incidence of intraoperative bleeding, the duration of surgery and postoperative complications. | Guang-Dong Pan, Lu-Nan Yan, Bo Li, Shi-Chun Lu, Yong Zeng, Tian-Fu Wen, Ji-Chun Zhao, Nan-Sheng Cheng, Yu-Kui Ma, Wen-Tao Wang, Jia-Yin Yang and Zhi-Hui Li Center of Liver Transplantation, West China Hospital, Sichuan University, Chengdu 610041 , China | 2005 | Hepatobiliary & Pancreatic Diseases International2005,4,3: | 13 |
| 14 | ALK,the Key Gene for Gelatinization Temperature,is a Modifier Gene for Gel Consistency in Rice显示文摘Gelatinization temperature(GT) is an important parameter in evaluating the cooking and eating quality of rice.Indeed,the phenotype,biochemistry and inheritance of GT have been widely studied in recent times.Previous map-based cloning revealed that GT was controlled by ALK gene,which encodes a putative soluble starch synthase II-3.Complementation vector and RNAi vector were constructed and transformed into Nipponbare mediated by Agrobacterium.Phenotypic and molecular analyses of transgenic lines provided direct evidence for ALK as a key gene for GT.Meanwhile,amylose content,gel consistency and pasting properties were also affected in transgenic lines.Two of four nonsynonymous single nucleotide polymorphisms in coding sequence of ALK were identified as essential for GT.Based on the single nucleotide polymorphisms(SNPs),two new sets of SNP markers combined with one cleaved amplified polymorphic sequence marker were developed for application in rice quality breeding. | Zhenyu Gao Dali Zeng Fangmin Cheng Zhixi Tian Longbiao Guo Yan Su Meixian Yan Hua Jiang Guojun Dong Yuchen Huang Bin Han Jiayang Li Qian Qian | 2011 | Journal of Integrative Plant Biology2011,53,9: | 13 |
| 15 | Tanshinone II.A sodium sulfonate (DS-201) enhances human BKca channel activity by selectively targeting the pore-forming α subunit显示文摘 | Xiao-qiu TAN Xiu-li CHENG Yan YANG Li YAN Jing-li GU Hui LI Xiao-rong ZENG Ji-min CAO | 2014 | Acta Pharmacologica Sinica2014,35,11: | 13 |
| 16 | Chinese Medicine Sequential Therapy Improves Pregnancy Outcomes after Surgery for Endometriosis-Associated Infertility: A Multicenter Randomized Double-blind Placebo Parallel Controlled Clinical Trial显示文摘Objective:To evaluate the efficacy and safety of Chinese medicine(CM)improving pregnancy outcomes after surgery for endometriosis-associated infertility.Methods:A multicenter,randomized,doubleblind placebo parallel controlled clinical trial was designed.A total of 202 patients who had laparoscopy for endometriosis-associated infertility with qi stagnation and blood stasis syndrome were included and randomly divided into the CM treatment group and placebo control group at a ratio of 1:1 using a central block randomization from May 2014 to September 2017,101 patients in each group.The two groups received continuous intervention at 1–5 days after surgery,for 6 menstrual cycles.Before ovulation,the CM group was treated Huoxue Xiaoyi Granule(活血消异颗粒);after ovulation,Bushen Zhuyun Granule(补肾助孕颗粒)was involved.The control group was treated with placebo.Transvaginal ultrasonography was performed every menstrual cycle during the treatment,and female hormone levels in the follicular and luteal phases were measured during the 1 st,3 rd and 6 th menstrual cycles.The analysis was continued until pregnancy.The primary outcomes were clinical pregnancy rate and pregnancy outcome,and the secondary outcomes were follicular development and endometrial receptivity.Safety evaluations were performed before and after treatment.Results:(1)Clinical pregnancy and live birth rates:the clinical pregnancy and live birth rates of the CM group were significantly higher than those of the placebo group[44.6%(45/101)vs.29.7%(30/101),34.7%(35/101)vs.20.8%(21/101),both P<0.05].(2)Follicle development:the incidence of dominant follicles,rate of cumulative cycle ovulation,and rate of cumulative cycle mature follicle ovulation were significantly higher in the CM group than those in the placebo group[93.8%(350/373)vs.89.5%(341/381),80.4%(275/342)vs.69.1%(253/366),65.8%(181/275)vs 56.1%(142/253),P<0.05 or P<0.01]).The incidence of cumulative cycle luteinized unruptured follicle syndrome was significantly lower in the CM group than in the placebo group[11.7%(40/342)vs.17.8%(65/366),P<0.05).(3)Endometrial receptivity:after treatment,both endometrial types and endometrial blood flow types in the CM group were mainly types A and B,while those in the placebo group were mainly types B and C,with a significant difference between the two groups(both P<0.05).(4)Adverse events:the incidence of adverse events between the two groups was not significantly different(P>0.05).Conclusion:Strategies for activating blood circulation-regulating Gan(Liver)-tonifying Shen(Kidney)sequential therapy can effectively improve the clinical pregnancy rate and live birth rate of endometriosis-associated infertility with qi stagnation and blood stasis after laparoscopy,improve follicular development,promote ovulation,improve endometrial receptivity,while being a safe treatment option.(Trial registration No.NCT02676713). | ZHAO Rui-hua LIU Yong LU Dan WU Ying WANG Xiao-yun LI Wei-li ZENG Cheng MENG Qing-wei LIAN Feng-mei ZHOU Jun SHI Yun SUN Wei-wei HAN Qian TANG Yi SHI Guang | 2020 | Chinese Journal of Integrative Medicine2020,26,2: | 13 |
| 17 | Clinical characteristics of human infection with a novel avian-origin influenza A(H10N8) virus显示文摘 | Zhang Wei Wan Jianguo Qian Kejian Liu Xiaoqing Xiao Zuke Sun Jian Zeng Zhenguo Wang Qi Zhang Jinxiang Jiang Guanghui Nie Cheng Jiang Rong Ding Chengzhi Li Ran Horby Peter Gao Zhancheng | 2014 | Chinese Medical Journal2014,,18: | 12 |
| 18 | Serum IgA,IgM,and IgG responses in COVID-19显示文摘Currently,detecting SARS-CoV-2 RNAs is a standard approach for COVID-19 diagnosis.However,there is an urgent need for reliable and rapid serological diagnostic methods to screen SARS-CoV-2-infected people including those who do not have overt symptoms.Most emerging studies described serological tests based on detection of SARS-CoV-2-specific IgM and IgG.1–4 Although detection of SARS-CoV-2-specific IgA in serum has been reported in few papers,5,6 analyses of IgA levels in a larger number of COVID-19 patients are still lacking. | Huan Ma Weihong Zeng Hongliang He Dan Zhao Dehua Jiang Peigen Zhou Linzhao Cheng Yajuan Li Xiaoling Ma Tengchuan Jin | 2020 | Cellular & Molecular Immunology2020,17,7: | 12 |
| 19 | Association between serum estradiol level on the human chorionic gonadotrophin administration day and clinical outcome显示文摘Background: Estradiol, as an important hormone in follicular development and endometrial receptivity, is closely related to clinical outcomes of fresh in vitro fertilization embryo transfer (IVF-ET) cycles. The aim of this retrospective study was to evaluate the association between elevated serum estradiol (E2) levels on the day of human chorionic gonadotrophin (hCG) administration and IVF-ET pregnancy and birth outcomes. Methods: A total of 1771 infertile patients with their first fresh IVF-ET cycles were analyzed retrospectively between January 2011 and January 2016 in Peking University First Hospital. Patients were categorized by serum E2 levels on the day of hCG administration into six groups: group 1 (serum E2 levels < 1000 pg/mL, n = 205), group 2 (serum E2 levels 1001-2000 pg/mL, n = 457), group 3 (serum E2 levels 2001-3000 pg/mL, n = 425), group 4 (serum E2 levels 3001-4000 pg/mL, n = 310), group 5 (serum E2 levels 4001- 5000 pg/mL, n = 237), and group 6 (serum E2 levels > 5000 pg/mL, n — 137). The retrieved oocyte and Mil oocyte numbers and implantation and clinical pregnancy rates of the groups were compared as the first objective of the study. For the 360 women with singleton births among all patients, the area under the corresponding receiver operating characteristic curve (ROC curve) was calculated to assess the predictive value of the E2 change for the probability of low birth weight (LBW) infants as the second objective. Results: The retrieved oocyte and Mil oocyte numbers and implantation and clinical pregnancy rates gradually increased from groups 1 to 5 but decreased in group 6. The parameters of group 1 were statistically worse than those of the other groups, from group 2 to group 6 (the number of retrieved oocytes, t = 13.096, t = 23.307, t = 23.086, t = 26.376, t = 19.636, P < 0.003;the number of retrieved Mil oocytes, t = 10.856, t = 20.868, t = 21.874, t = 23.374, t = 19.092, P < 0.003;the implantation rate,χ^2= 12.179,χ^2= 22.239,χ^2= 23.993,χ^2= 23.344,χ^2= 16.758, P < 0.003;the clinical pregnancy rate,χ^2= 16.415,χ^2= 28.074,χ^2= 35.387,χ^2= 37.025,χ^2= 24.590, P < 0.003). ROC analysis revealed that when a serum peak E2 of 3148 pg/mL was used to predict LBW. Conclusions: The results indicate that serum E2 levels have a concentration-dependent effect on clinical outcomes. The optimal range of the E2 level during a fresh IVF-ET cycle is 1000 to 3148 pg/mL. | Xin Li Cheng Zeng Jing Shang Sheng Wang Xue-Lian Gao Qing Xue | 2019 | Chinese Medical Journal2019,,10: | 12 |
| 20 | Exogenous application of a low concentration of melatonin enhances salt tolerance in rapeseed(Brassica napus L.) seedlings显示文摘Melatonin is a naturally occurring compound in plants. Here, we tested the effect of exogenous melatonin on rapeseed(Brassica napus L.) grown under salt stress. Application of 30 μmol L^(–1) melatonin alleviated salt-induced growth inhibition, and the shoot fresh weight, the shoot dry weight, the root fresh weight, and the root dry weight of seedlings treated with exogenous melatonin increased by 128.2, 142.9, 122.2, and 124.2%, respectively, compared to those under salt stress. In addition, several physiological parameters were evaluated. The activities of antioxidant enzymes including peroxidase(POD), catalase(CAT) and ascorbate peroxidase(APX) were enhanced by 16.5, 19.3, and 14.2% compared to their activities in plants without exogenous melatonin application under salt stress, while the H_2O_2 content was decreased by 11.2% by exogenous melatonin. Furthermore, melatonin treatment promoted solute accumulation by increasing the contents of proline(26.8%), soluble sugars(15.1%) and proteins(58.8%). The results also suggested that higher concentrations(>50 μmol L^(–1)) of melatonin could attenuate or even prevent the beneficial effects on seedling development. In conclusion, application of a low concentration of exogenous melatonin to rapeseed plants under salt stress can improve the H_2O_2-scavenging capacity by enhancing the activities of antioxidant enzymes such as POD, CAT and APX, and can also alleviate osmotic stress by promoting the accumulation of osmoregulatory substances such as soluble proteins, proline, and water soluble glucan. Ultimately, exogenous melatonin facilitates root development and improves the biomass of rapeseed seedlings grown under salt stress, thereby effectively alleviating the damage of salt stress in rapeseed seedlings. | ZENG Liu CAI Jun-song LI Jing-jing LU Guang-yuan LI Chun-sheng FU Gui-ping ZHANG Xue-kun MA Hai-qing LIU Qing-yun ZOU Xi-ling CHENG Yong | 2018 | Journal of Integrative Agriculture2018,17,2: | 11 |