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| 1 | 基于TRIZ理论和功能分析的产品创新设计显示文摘阐述了产品功能分析法、TRIZ理论的最终理想解和物场分析方法,建立了基于TRIZ理论和功能分析的产品创新设计流程。该流程将产品的创新设计分为产品功能分析、抽象理想解,构建系统物场模型和解决问题功能模型几个阶段,指导设计人员从产品的功能出发,快速实现产品的创新设计。并以液压缸往复密封为例,说明该流程的有效性。 | 卢希美 张付英 张青青 | 2010 | 机械设计与制造2010，，12： | 67 |
| 2 | Angiogenesis and neuronal remodeling after ischemic stroke显示文摘Increased microvessel density in the peri-infarct region has been reported and has been correlated with longer survival times in ischemic stroke patients and has improved outcomes in ischemic animal models.This raises the possibility that enhancement of angiogenesis is one of the strategies to facilitate functional recovery after ischemic stroke.Blood vessels and neuronal cells communicate with each other using various mediators and contribute to the pathophysiology of cerebral ischemia as a unit.In this mini-review,we discuss how angiogenesis might couple with axonal outgrowth/neurogenesis and work for functional recovery after cerebral ischemia.Angiogenesis occurs within 4 to 7 days after cerebral ischemia in the border of the ischemic core and periphery.Post-ischemic angiogenesis may contribute to neuronal remodeling in at least two ways and is thought to contribute to functional recovery.First,new blood vessels that are formed after ischemia are thought to have a role in the guidance of sprouting axons by vascular endothelial growth factor and laminin/β1-integrin signaling.Second,blood vessels are thought to enhance neurogenesis in three stages:1)Blood vessels enhance proliferation of neural stem/progenitor cells by expression of several extracellular signals,2)microvessels support the migration of neural stem/progenitor cells toward the peri-infarct region by supplying oxygen,nutrients,and soluble factors as well as serving as a scaffold for migration,and 3)oxygenation induced by angiogenesis in the ischemic core is thought to facilitate the differentiation of migrated neural stem/progenitor cells into mature neurons.Thus,the regions of angiogenesis and surrounding tissue may be coupled,representing novel treatment targets. | Masahiro Hatakeyama Itaru Ninomiya Masato Kanazawa | 2020 | Neural Regeneration Research2020，15，1： | 63 |
| 3 | Effectiveness of acupuncture to treat irritable bowel syndrome: A meta-analysis显示文摘AIM:To evaluate the efficacy of acupuncture for treatment of irritable bowel syndrome(IBS)through metaanalysis of randomized controlled trials.METHODS:We searched MEDLIINE,PubMed,Scopus,Web of Science,and Cochrane Central Register of Controlled Trials from 1966 to February 2013 for doubleblind,placebo-controlled trials investigating the efficacy of acupuncture in the management of IBS.Studies were screened for inclusion based on randomization,controls,and measurable outcomes reported.We used the modified Jadad score for assessing the quality of the articles.STATA 11.0 and Revman 5.0 were used for meta-analysis.Publication bias was assessed by Begg’s and Egger’s tests.RESULTS:Six randomized,placebo-controlled clinical trials met the criteria and were included in the metaanalysis.The modified Jadad score of the articles was>3,and five articles were of high quality.We analyzed the heterogeneity and found that these studies did not cause heterogeneity in our meta-analysis.Begg’s test showed P=0.707 and Egger’s test showed P=0.334.There was no publication bias in our meta-analysis(Begg’s test,P=0.707;Egger’s test,P=0.334).From the forest plot,the diamond was on the right side of the vertical line and did not intersect with the line.The pooled relative risk for clinical improvement with acupuncture was 1.75(95%CI:1.24-2.46,P=0.001).Using the two different systems of STATA 11.0 and Revman 5.0,we confirmed the significant efficacy of acupuncture for treating IBS.CONCLUSION:Acupuncture exhibits clinically and statistically significant control of IBS symptoms. | Guan-Qun Chao Shuo Zhang | 2014 | World Journal of Gastroenterology2014，20，7： | 33 |
| 4 | Helicobacter pylori eradication therapy for functional dyspepsia: Systematic review and meta-analysis显示文摘AIM: To evaluate whether Helicobacter pylori(H. pylori) eradication therapy benefits patients with functional dyspepsia(FD).METHODS: Randomized controlled trials(RCTs) investigating the efficacy and safety of H. pylori eradication therapy for patients with functional dyspepsia published in English(up to May 2015) were identified by searching Pub Med, EMBASE, and The Cochrane Library. Pooled estimates were measured using the fixed or random effect model. Overall effect was expressed as a pooled risk ratio(RR) or a standard mean difference(SMD). All data were analyzed with Review Manager 5.3 and Stata 12.0.RESULTS: This systematic review included 25 RCTs with a total of 5555 patients with FD. Twenty-three of these studies were used to evaluate the benefits of H. pylori eradication therapy for symptom improvement; the pooled RR was 1.23(95%CI: 1.12-1.36, P < 0.0001). H. pylori eradication therapy demonstrated symptom improvement during long-term follow-up at ≥ 1 year(RR = 1.24; 95%CI: 1.12-1.37, P < 0.0001) but not during short-term follow-up at < 1 year(RR = 1.26; 95%CI: 0.83-1.92, P = 0.27). Seven studies showed no benefit of H. pylori eradication therapy on quality of life with an SMD of-0.01(95%CI:-0.11 to 0.08, P = 0.80). Six studies demonstrated that H. pylori eradication therapy reduced the development of peptic ulcer disease compared to no eradication therapy(RR = 0.35; 95%CI: 0.18-0.68, P = 0.002). Eight studies showed that H. pylori eradication therapy increased the likelihood of treatment-related side effects compared to no eradication therapy(RR = 2.02; 95%CI: 1.12-3.65, P = 0.02). Ten studies demonstrated that patients who received H. pylori eradication therapy were more likely to obtain histologic resolution of chronic gastritis compared to those who did not receive eradication therapy(RR = 7.13; 95%CI: 3.68-13.81, P < 0.00001).CONCLUSION: The decision to eradicate H. pylori in patients with functional dyspepsia requires individual assessment. | Li-Jun Du Bin-Rui Chen John J Kim Sarah Kim Jin-Hua Shen Ning Dai | 2016 | World Journal of Gastroenterology2016，22，12： | 30 |
| 5 | Aphasia rehabilitation based on mirror neuron theory: a randomized-block-design study of neuropsychology and functional magnetic resonance imaging显示文摘When watching someone performs an action, mirror neurons are activated in a way that is very similar to the activation that occurs when actually performing that action. Previous single-sample case studies indicate that hand-action observation training may lead to activation and remodeling of mirror neuron systems, which include important language centers, and may improve language function in aphasia patients. In this randomized-block-design experiment, we recruited 24 aphasia patients from, Zhongda Hospital, Southeast University, China. The patients were divided into three groups where they underwent hand-action observation and repetition, dynamic-object observation and repetition, or conventional speech therapy. Training took place 5 days per week, 35 minutes per day, for 2 weeks. We assessed language function via picture naming tests for objects and actions and the Western Aphasia Battery. Among the participants, one patient, his wife and four healthy student volunteers underwent functional magnetic resonance imaging to analyze changes in brain activation during hand-action observation and dynamic-object observation. Results demonstrated that, compared with dynamic-object observation, hand-action observation led to greater performance with respect to the aphasia quotient and affiliated naming sub-tests and a greater Western Aphasia Battery test score. The overall effect was similar to that of conventional aphasia training, yet hand-action observation had advantages compared with conventional training in terms of vocabulary extraction and spontaneous speech. Thus, hand-action observation appears to more strongly activate the mirror neuron system compared with dynamic-object observation. The activated areas included Broca's area, Wernicke's area, and the supramarginal gyrus. These results suggest that hand-action observation combined with repetition might better improve language function in aphasia patients compared with dynamic-object observation combined with repetition. The therapeutic mechanism of this intervention may be associated with activation of additional mirror neuron systems, and may have implications for the possible repair and remodeling of damaged nerve networks. The study protocol was approved by the Ethical Committee of Nanjing Medical University, China(approval number: 2011-SRFA-086) on March 11, 2011. This trial has been registered in the ISRCTN Registry(ISRCTN84827527). | Wen-Li Chen Qian Ye Si-Cong Zhang Yang Xia Xi Yang Ti-Fei Yuan Chun-Lei Shan Jian-An Li | 2019 | Neural Regeneration Research2019，14，6： | 28 |
| 6 | A generalized variational principle and theoretical model for magnetoelastic interaction of ferromagnetic bodies显示文摘The quantitative analysis shows that no theoretical model for 3-d magnetoelastic bodies, in literatures to date, can commonly simulate two kinds of distinct experimental phenomena on magnetoelastic interaction of ferromagnetic structures. This makes it difficult to effectively discribe the magnetoelastic mechanical behavior of structures with complex geometry, such as shells. Therefore, it is a key step for simulating magnetoelastic mechanical characteristics of structures with complex geometry to establish a 3-d model which also can commonly characterize the two distinct experimental phenomena. A theoretical model for three dimension magnetizable elastic bodies, which is commonly suitable for the two kinds of experimental phenomena on magnetoelastic interaction of ferromagnetic plates, is presented by the variational principle for the total energy functional of the coupling system of the 3-d ferromagnetic bodies. It is found that for the case of linear isotropic magnetic materials, the magnetic | 周又和 郑晓静 | 1999 | Science China Mathematics1999，42，6： | 26 |
| 7 | CT肺功能成像参数正常值研究显示文摘目的建立国人CT肺功能参数的正常值,为临床应用提供依据。资料与方法共召集健康志愿者120名,其中男45名,女75名。年龄19~79岁,平均(40.33±14.92)岁。其中99例在同一天完成肺功能检查(pulmonaryfunctional tests,PFTs)和CT肺功能检查。利用CT肺功能定量分析软件分析图像数据并得出相应的肺功能参数值,如吸气末CT肺体积(Vin),呼气末CT肺体积(Vex),像素指数如PI-700^-800,PI-800^-900,PI-910,PI-950等,与肺功能的参数值建立相关性。结果(1)Vin与TLC,Vex与RV存在相关性(r=0.940,P=0.000;r=0.619,P=0.000)。呼吸比((Vex/Vin)与RV/TLC存在相关性(r=0.591,P=0.000)。(2)身高、性别、年龄对Vin的影响有统计学意义(F=85.928,P=0.000),体重对Vin的影响无统计学意义(t=-0.386,P=0.701)。建立Vin预计值回归方程:Vin=0.060ht-0.11A-0.814sex-5.743[Vin代表吸气末CT肺体积(L);ht代表身高(cm);A代表年龄(岁);女,则sex=1;男,则sex=2],(相关系数r=0.830,决定系数R2=0.690,估计值的标准误为0.620)。(3)同样方法求得呼气末CT测得的肺体积Vex预计值:Vex=0.032ht+0.009A-3.790[Vex代表呼气末CT肺体积(L);ht代表身高(cm),A代表年龄](r=0.554,决定系数R2=0.307,估计值的标准误为0.378),性别、体重对Vex的影响无统计学意义(t=-1.398,P=0.165;t=-0.872,P=0.385)。(4)吸气末平均CT值(-853.792±23.4524)HU,呼气末平均CT值(-649.538±65.4004)HU。(5)求得正常组最大吸气末和最大呼气末CT各阈值内像素指数(PI)的平均值范围,如吸气末PI-800/-900 HU=(46.48±14.91)%,呼气末PI-700/-800 HU=(30.96±10.56)%。(6)建立像素指数预计值的回归方程式,如PI-910/-1 000 HU=0.013ht-0.009wt-1.246[ht代表身高(cm);wt代表体重(kg)]。结论本研究证实CT肺功能成像检查是可行的,求得的CT肺体积及像素指数预计值的回归方程,为肺功能评价的临床应用建立参考标准,为进一步开展CT评价肺功能提供依据。 | 张伟宏 牟文斌 齐冰 王富英 马毅 朱元珏 翟伟明 胡成文 金征宇 刘玉清 | 2005 | 临床放射学杂志2005，24，10： | 25 |
| 8 | Global leaf nitrogen and phosphorus stoichiometry and their scaling exponent显示文摘Leaf nitrogen(N) and phosphorus(P) concentrations constrain photosynthetic and metabolic processes,growth and the productivity of plants. Their stoichiometry and scaling relationships regulate the allocation of N and P from subcellular to organism, and even ecosystem levels, and are crucial to the modelling of plant growth and nutrient cycles in terrestrial ecosystems. Prior work has revealed a general biogeographic pattern of leaf N and P stoichiometric relationships and shown that leaf N scales roughly as two-thirds the power of P. However, determining whether and how leaf N and P stoichiometries, especially their scaling exponents, change with functional groups and environmental conditions requires further verification. In this study, we compiled a global data set and documented the global leaf N and P concentrations and the N:P ratios by functional group, climate zone and continent. The global overall mean leaf N and P concentrations were 18.9 mg g^(-1) and 1.2 mg g^(-1), respectively, with significantly higher concentrations in herbaceous than woody plants(21.72 mg g^(-1) vs. 18.22 mg g^(-1) for N; and 1.64 mg g^(-1) vs. 1.10 mg g^(-1) for P). Both leaf N and P showed higher concentrations at high latitudes than low latitudes. Among six continents, Europe had the highest N and P concentrations(20.79 and 1.54 mg g^(-1)) and Oceania had the smallest values(10.01 and 0.46 mg g^(-1)). These numerical values may be used as a basis for the comparison of other individual studies. Further, we found that the scaling exponent varied significantly across different functional groups,latitudinal zones, ecoregions and sites. The exponents of herbaceous and woody plants were 0.659 and0.705, respectively, with significant latitudinal patterns decreasing from tropical to temperate to boreal zones. At sites with a sample size ≥10, the values fluctuated from 0.366 to 1.928, with an average of 0.841.Several factors including the intrinsic attributes of different life forms, P-related growth rates and relative nutrient availability of soils likely account for the inconstant exponents of leaf N vs. P scaling relationships. | Di Tian Zhengbing Yan Karl J.Niklas Wenxuan Han Jens Kattge Peter B.Reich Yongkai Luo Yahan Chen Zhiyao Tang Huifeng Hu Ian J.Wright Bernhard Schmid Jingyun Fang | 2018 | National Science Review2018，5，5： | 24 |
| 9 | Arterial spin labeling in neuroimaging显示文摘Arterial spin labeling(ASL) is a magnetic resonance imaging technique for measuring tissue perfusion using a freely diffusible intrinsic tracer.As compared with other perfusion techniques,ASL offers several advantages and is now available for routine clinical practice in many institutions.Its noninvasive nature and ability to quantitatively measure tissue perfusion make ASL ideal for research and clinical studies.Recent technical advances have increased its sensitivity and also extended its potential applications.This review focuses on some basic knowledge of ASL perfusion,emerging techniques and clinical applications in neuroimaging. | Sasitorn Petcharunpaisan Joana Ramalho Mauricio Castillo | 2010 | World Journal of Radiology2010，2，10： | 23 |
| 10 | 降压治疗新视点:中心动脉压显示文摘 | 张维忠 | 2006 | 中华心血管病杂志2006，34，5： | 22 |
| 11 | Interacting with Text:The Role of Dialogue in Learning to Read and Write显示文摘English language teachers in China are expressing growing interest in the model of language provided by systemic functional linguistics and genre theory. This paper offers further insights into the methods developed in this framework,for teaching reading and writing in school and academic contexts. These methods involve carefully planned interactions between teachers and students,that enable all students in a class to successfully practise skills in academic reading and writing. The paper outlines the models of language and language learning that underpin the methods,and illustrates the kinds of classroom interactions used for writing and reading. It concludes with a discussion of the implications of these methods for language teaching in China. | J. R. Martin David Rose | 2007 | 中国外语2007，4，5： | 23 |
| 12 | Effect of clinician-patient communication on compliance with flupentixol-melitracen in functional dyspepsia patients显示文摘AIM: To explore whether clinician-patient communication affects adherence to psychoactive drugs in functional dyspepsia(FD) patients with psychological symptoms. METHODS: A total of 262 FD patients with psychological symptoms were randomly assigned to four groups. The patients in Groups 1-3 were given flupentixol-melitracen(FM) plus omeprazole treatment. Those in Group 1 received explanations of both the psychological and gastrointestinal(GI) mechanisms of the generation of FD symptoms and the effects of FM. In Group 2, only the psychological mechanisms were emphasized. The patients in Group 3 were not given an explanation for the prescription of FM. Those in Group 4 were given omeprazole alone. The primary endpoints of this study were compliance rate and compliance index to FM in Groups 1-3. Survival analyses were also conducted. The secondary end points were dyspepsia and psychological symptom improvement in Groups 1-4. The correlations between the compliance indices and the reductions in dyspepsia and psychological symptom scores were also evaluated in Groups 1-3.RESULTS: After 8 wk of treatment, the compliance rates were 67.7% in Group 1, 42.4% in Group 2 and 47.7% in Group 3(Group 1 vs Group 2, P = 0.006; Group 1 vs Group 3, P = 0.033). The compliance index(Group 1 vs Group 2, P = 0.002; Group 1 vs Group 3, P = 0.024) with the FM regimen was significantly higher in Group 1 than in Groups 2 and 3. The survival analysis revealed that the patients in Group 1 exhibited a significantlyhigher compliance rate than Groups 2 and 3(Group 1 vs Group 2, P = 0.002; Group 1 vs Group 3, P = 0.018). The improvement in dyspepsia(Group 1 vs Group 2, P < 0.05; Group 1 vs Group 3, P < 0.05; Group 1 vs Group 4, P < 0.01) and psychological symptom scores(anxiety: Group 1 vs Group 2, P < 0.01; Group 1 vs Group 3, P < 0.05; Group 1 vs Group 4, P < 0.01; depression: Group 1 vs Group 2, P < 0.01; Group 1 vs Group 3, P < 0.01; Group 1 vs Group 4, P < 0.01) in Group 1 were greater than those in Groups 2-4. The compliance indices were positively correlated with the reduction in symptom scores in Groups 1-3. CONCLUSION: Appropriate clinician-patient communication regarding the reasons for prescribing psychoactive drugs that emphasizes both the psychological and GI mechanisms might improve adherence to FM in patients with FD. | Xiu-Juan Yan Wen-Ting Li Xin Chen Er-Man Wang Qing Liu Hong-Yi Qiu Zhi-Jun Cao Sheng-Liang Chen | 2015 | World Journal of Gastroenterology2015，21，15： | 23 |
| 13 | Resilient PNT Concept Frame显示文摘The concept of resilient positioning, navigation and timing (PNT) is described. The definition of resilient PNT is given, the relationship between integrated (or comprehensive) PNT and resilient PNT is analyzed, and it is pointed out that the integrated PNT is the foundation of resilient PNT. Resilient PNT should be divided into resilient sensor integration, resilient functional model and resilient stochastic model. The strategy and principles of resilient integration of sensors are discussed. The resilient integration of sensors should be designed following the optimal, available, compatible and interoperable principles. The concepts of resilient functional model and possible modification strategies of the different functional models are also described. Several possible optimal routes for resilient stochastic model improvements are also set forth. It is pointed out that the optimal improvements of stochastic models for multi PNT sources should follow the same variance scale. At last, the resilient PNT data fusion for state parameters are given based on the resilient functional and stochastic models. | Yuanxi YANG | 2019 | Journal of Geodesy and Geoinformation Science2019，2，3： | 21 |
| 14 | Stability analysis of solutions to nonlinear stiff Volterra functional differential equations in Banach spaces显示文摘A series of stability, contractivity and asymptotic stability results of the solutions to nonlinear stiff Volterra functional differential equations (VFDEs) in Banach spaces is obtained, which provides the unified theoretical foundation for the stability analysis of solutions to nonlinear stiff problems in ordinary differential equations(ODEs), delay differential equations(DDEs), integro-differential equations(IDEs) and VFDEs of other type which appear in practice. | LI Shoufu | 2005 | Science China Mathematics2005，48，3： | 20 |
| 15 | Incidence and psychological-behavioral characteristics of refractory functional dyspepsia:A large, multi-center, prospective investigation from China显示文摘AIM:To explore the incidence and psychological and behavioral characteristics of refractory functional dyspepsia(RFD)in China.METHODS:The subjects of this study were 1341 new outpatients with functional dyspepsia(FD)who were diagnosed according to the RomeⅢcriteria at four hospitals in Guangdong Province between June and September 2012,and 100 healthy volunteers.All subjects completed questionnaires and scales administered.RESULTS:Three-hundred and twenty-seven of the 1341patients with FD had RFD(24.4%).Patients with RFD had a longer disease duration and a more severe form of the disease than patients with non-refractory FD(NRFD).The prevalence of depression and anxiety symptoms was higher in patients with RFD than in patients with NRFD.The prevalence of unhealthy eating behaviors,lack of physical activity,and sleeping disorders was higher in patients with RFD than in patients with NRFD.Patients with RFD sought medical advice on more occasions and spent more money on treatment than patients with NRFD.Finally,patients with RFD had poorer quality of life than patients with NRFD.CONCLUSION:RFD is not rare in clinical practice and should get attention by patients and doctors because of its long duration,severe symptoms,and associations with abnormal psychology and poor quality of life. | Shu-Man Jiang Lin Jia Xiao-Gai Lei Ming Xu Sheng-Bing Wang Jing Liu Min Song Wei-Dong Li | 2015 | World Journal of Gastroenterology2015，21，6： | 20 |
| 16 | Preoperative portal vein embolization for hepatocellular carcinoma: consensus and controversy显示文摘Thirty years have passed since the first report of portal vein embolization(PVE),and this procedure is widely adopted as a preoperative treatment procedure for patients with a small future liver remnant(FLR).PVE has been shown to be useful in patients with hepatocellular carcinoma(HCC)and chronic liver disease.However,special caution is needed when PVE is applied prior to subsequent major hepatic resection in cases with cirrhotic livers,and volumetric analysis of the liver segments in addition to evaluation of the liver functional reserve before PVE is mandatory in such cases.Advances in the embolic material and selection of the treatment approach,and combined use of PVE and transcatheter arterial embolization/chemoembolization have yielded improved outcomes after PVE and major hepatic resections.A novel procedure termed the associating liver partition and portal vein ligation for staged hepatectomy has been gaining attention because of the rapid hypertrophy of the FLR observed in patients undergoing this procedure,however,application of this technique in HCC patients requires special caution,as it has been shown to be associated with a high morbidity and mortality even in cases with essentially healthy livers. | Taku Aoki Keiichi Kubota | 2016 | World Journal of Hepatology2016，8，9： | 19 |
| 17 | Functional foods-based diet as a novel dietary approach for management of type 2 diabetes and its complications: A review显示文摘Type 2 diabetes is a complicated metabolic disorder with both short- and long-term undesirable complications. In recent years, there has been growing evidence that functional foods and their bioactive compounds, due to their biological properties, may be used as complementary treatment for type 2 diabetes mellitus. In this review, we have highlighted various functional foods as missing part of medical nutrition therapy in diabetic patients. Several in vitro, animal models and some human studies, have demonstrated that functional foods and nutraceuticals may improve postprandial hyperglycemia and adipose tissue metabolism modulatecarbohydrate and lipid metabolism. Functional foods may also improve dyslipidemia and insulin resistance, and attenuate oxidative stress and inflammatory processes and subsequently could prevent the development of long-term diabetes complications including cardiovascular disease, neuropathy, nephropathy and retinopathy. In conclusion available data indicate that a functional foods-based diet may be a novel and comprehensive dietary approach for management of type 2 diabetes. | Parvin Mirmiran Zahra Bahadoran Fereidoun Azizi | 2014 | World Journal of Diabetes2014，5，3： | 18 |
| 18 | B-Theory of Runge-Kutta methods for stiff Volterra functional differential equations显示文摘B-stability and B-convergence theories of Runge-Kutta methods for nonlinear stiff Volterra func-tional differential equations (VFDEs) are established which provide unified theoretical foundation for the studyof Runge-Kutta methods when applied to nonlinear stiff initial value problems (IVPs) in ordinary differentialequations (ODEs), delay differential equations (DDEs), integro-differential equations (IDEs) and VFDEs ofother type which appear in practice. | 李寿佛 | 2003 | Science China Mathematics2003，46，5： | 18 |
| 19 | QMEC:a tool for high-throughput quantitative assessment of microbial functional potential in C,N,P,and S biogeochemical cycling显示文摘Microorganisms are major drivers of elemental cycling in the biosphere. Determining the abundance of microbial functional traits involved in the transformation of nutrients, including carbon(C), nitrogen(N), phosphorus(P) and sulfur(S), is critical for assessing microbial functionality in elemental cycling. We developed a high-throughput quantitative-PCR-based chip, Quantitative microbial element cycling(QMEC), for assessing and quantifying the genetic potential of microbiota to mineralize soil organic matter and to release C, N, P and S. QMEC contains 72 primer pairs targeting 64 microbial functional genes for C, N, P, S and methane metabolism. These primer pairs were characterized by high coverage(average of 18–20 phyla covered per gene)and sufficient specificity(>70% match rate) with a relatively low detection limit(7–102 copies per run). QMEC was successfully applied to soil and sediment samples, identifying significantly different structures, abundances and diversities of the functional genes(P<0.05). QMEC was also able to determine absolute gene abundance. QMEC enabled the simultaneous qualitative and quantitative determination of 72 genes from 72 samples in one run, which is promising for comprehensively investigating microbially mediated ecological processes and biogeochemical cycles in various environmental contexts including those of the current global change. | Bangxiao Zheng Yongguan Zhu Jordi Sardans Josep Penuelas Jianqiang Su | 2018 | Science China(Life Sciences)2018，61，12： | 18 |
| 20 | Beneficial effects of antidepressant mirtazapine in functional dyspepsia patients with weight loss显示文摘AIM: To explore the effects and mechanism of action of antidepressant mirtazapine in functional dyspepsia(FD) patients with weight loss.METHODS: Sixty depressive FD patients with weight loss were randomly divided into a mirtazapine group(MG), a paroxetine group(PG) or a conventional therapy group(CG) for an 8-wk clinical trial. Adverse effects and treatment response were recorded. The Nepean Dyspepsia Index-symptom(NDSI) checklist and the 17-item Hamilton Rating Scale of Depression(HAMD-17) were used to evaluate dyspepsia and depressive symptoms, respectively. The body composition analyzer was used to measure body weight and fat. Serum hormone levels were measured by ELISA.RESULTS:(1) After 2 wk of treatment, NDSI scores were significantly lower for the MG than for the PG and CG;(2) After 4 or 8 wk of treatment, HAMD-17 scores were significantly lower for the MG and PG than for the CG;(3) After 8 wk of treatment, patients in the MG experienced a weight gain of 3.58 ± 1.57 kg, which was significantly higher than that observed for patients in the PG and CG. Body fat increased by 2.77 ± 0.14kg, the body fat ratio rose by 4%, and the visceral fat area increased by 7.56 ± 2.25 cm2; and(4) For the MG, serum hormone levels of ghrelin, neuropeptide Y(NPY), motilin(MTL) and gastrin(GAS) were significantly upregulated; in contrast, those of leptin, 5-hydroxytryptamine(5-HT) and cholecystokinin(CCK) were significantly downregulated. CONCLUSION: Mirtazapine not only alleviates symptoms associated with dyspepsia and depression linked to FD in patients with weight loss but also significantly increases body weight(mainly the visceral fat in body fat). The likely mechanism of mirtazapine action is regulation of brain-gut or gastrointestinal hormone levels. | Shu-Man Jiang Lin Jia Jing Liu Man-Man Shi Ming-Zhi Xu | 2016 | World Journal of Gastroenterology2016，22，22： | 18 |
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