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| 1 | Enhanced recovery after surgery:Current research insights and future direction显示文摘Since the concept of enhanced recovery after surgery(ERAS)was introduced in the late 1990 s the idea of implementing specific interventions throughout the perioperative period to improve patient recovery has been proven to be beneficial. Minimally invasive surgery is an integral component to ERAS and has dramatically improved post-operative outcomes. ERAS can be applicable to all surgical specialties with the core generic principles used together with added specialty specific interventions to allow for a comprehensive protocol,leading to improved clinical outcomes. Diffusion of ERAS into mainstream practice has been hindered due to minimal evidence to support individual facets and lack of method for monitoring and encouraging compliance. No single outcome measure fully captures recovery after surgery,rather multiple measures are necessary at each stage. More recently the pre-operative period has been the target of a number of strategies to improve clinical outcomes,described as prehabilitation. Innovation of technology in the surgical setting is also providing opportunities to overcome the challenges within ERAS,e.g.,the use of wearable activity monitors to record information and provide feedback and motivation to patients peri-operatively. Both modernising ERAS and providing evidence for key strategies across specialties will ultimately lead to better,more reliable patient outcomes. | Aliza Abeles Richard Mark Kwasnicki Ara Darzi | 2017 | World Journal of Gastrointestinal Surgery2017，9，2： | 46 |
| 2 | Laparoscopic liver resection:Experience based guidelines显示文摘Laparoscopic liver resection(LLR) has been progressively developed along the past two decades. Despite initial skepticism, improved operative results made laparoscopic approach incorporated to surgical practice and operations increased in frequency and complexity. Evidence supporting LLR comes from case-series, comparative studies and meta-analysis. Despite lack of level 1 evidence, the body of literature is stronger and existing data confirms the safety, feasibility and benefits of laparoscopic approach when compared to open resection. Indications for LLR do not differ from those for open surgery. They include benign and malignant(both primary and metastatic) tumors and living donor liver harvesting. Currently, resection of lesions located on anterolateral segments and left lateral sectionectomy are performed systematically by laparoscopy in hepatobiliary specialized centers. Resection of lesions located on posterosuperior segments(1, 4a, 7, 8) and major liver resections were shown to be feasible but remain technically demanding procedures, which should be reserved to experienced surgeons. Hand-assisted and laparoscopy-assisted procedures appeared to increase the indications of minimally invasive liver surgery and are useful strategies applied to difficult and major resections. LLR proved to be safe for malignant lesions and offers some short-term advantages over open resection. Oncological results including resection margin status and long-term survival were not inferior to open resection. At present, surgical community expects high quality studies to base the already perceived better outcomes achieved by laparoscopy in major centers' practice. Continuous surgical training, as well as new technologies should augment the application of lap-aroscopic liver surgery. Future applicability of new technologies such as robot assistance and image-guided surgery is still under investigation. | fabricio ferreira coelho jaime arthur pirola kruger gilton marques fonseca raphael leonardo cunha araújo vagner birk jeismann marcos vinícius perini renato micelli lupinacci ivan cecconello paulo herman | 2016 | World Journal of Gastrointestinal Surgery2016，8，1： | 22 |
| 3 | Airborne bioaerosols and their impact on human health显示文摘Bioaerosols consist of aerosols originated biologically such as metabolites, toxins, or fragments of microorganisms that are present ubiquitously in the environment. International interests in bioaerosols have increased rapidly to broaden the pool of knowledge on their identification,quantification, distribution, and health impacts(e.g., infectious and respiratory diseases,allergies, and cancer). However, risk assessment of bioaerosols based on conventional culture methods has been hampered further by several factors such as:(1) the complexity of microorganisms or derivatives to be investigated;(2) the purpose, techniques, and locations of sampling; and(3) the lack of valid quantitative criteria(e.g., exposure standards and dose/effect relationships). Although exposure to some microbes is considered to be beneficial for health,more research is needed to properly assess their potential health hazards including inter-individual susceptibility, interactions with non-biological agents, and many proven/unproven health effects(e.g., atopy and atopic diseases). | Ki-Hyun Kim Ehsanul Kabir Shamin Ara Jahan | 2018 | Journal of Environmental Sciences2018，30，5： | 22 |
| 4 | Epidermal growth factor receptor and K-Ras in non-small cell lung cancer-molecular pathways involved and targeted therapies显示文摘Lung cancer is currently the leading cause of cancer death in Western nations.Non-small cell lung cancer(NSCLC)represents 80%of all lung cancers,and adenocarcinoma is the predominant histological type.Despite the intensive research carried out on this field and therapeutic advances,the overall prognosis of these patients remains unsatisfactory,with a 5-year overall survival rate of less than 15%.Nowadays,pharmacogenetics and pharmacogenomics represent the key to successful treatment.Recent studies suggest the existence of two distinct molecular pathways in the carcinogenesis of lung adenocarcinoma:one associated with smoking and activation of the K-Ras oncogene and the other not associated with smoking and activation of the epidermal growth factor receptor(EGFR).The K-ras mutation is mainly responsible for primary resistance to new molecules which inhibit tyrosine kinase EGFR(erlotinib and gefitinib)and most of the EGFR mutations are responsible for increased tumor sensitivity to these drugs.This article aims to conduct a systematic review of the literature regarding the molecular pathways involving the EGFR,K-Ras and EGFR targeted therapies in NSCLC tumor behavior. | Ramon Andrade de Mello Dania Sofia Marques Rui Medeiros António MF Araújo | 2011 | World Journal of Clinical Oncology2011，2，11： | 16 |
| 5 | Laparoscopic vs open approach to resection of hepatocellular carcinoma in patients with known cirrhosis:Systematic review and meta-analysis显示文摘AIM: To review the currently available literature comparing laparoscopic to open resection of hepatocellular carcinoma(HCC) in patients with known liver cirrhosis.METHODS: A literature search of MEDLINE, EMBASE, and Cochrane databases was conducted. The search terms used included(laparoscopic OR laparoscopy) AND(hepatic or liver) AND(surgery or resection) AND 'hepatocellular carcinoma' AND(cirrhosis or cirrhotic). Furthermore, to widen the search, we also used the 'related articles' section. Studies reporting a comparison of outcomes and methods of open vs laparoscopic hepatic resection for HCC in patients with liver cirrhosis were included. Meta-analysis of results was performed using a random effects model to compute relative risk(RR) and for dichotomous variablesand standard mean differences(SMD) for continuous variables.RESULTS: A total of 420 patients from 4 cohort studies were included in final analysis. Patients undergoing laparoscopic procedures had statistically less blood loss compared to the open cohort, SMD of-1.01(95%CI:-1.23-0.79), P < 0.001, with a reduced risk of transfusion, RR = 0.19(95%CI: 0.09-0.38), P < 0.001. A wider clearance at tumour resection margins was achieved following a laparoscopic approach, SMD of 0.34(95%CI: 0.08-0.60), P = 0.011. No significant difference was noted between laparoscopic and open resection operative times, SMD of-0.15(95%CI: 0.35-0.05), P = 0.142. The overall RR of suffering from postoperative morbidity is 0.25 in favour of the open surgery cohort(95%CI: 0.17-0.37), P < 0.001. Patients under-going laparoscopic surgery had significantly shorter length of stays in hospital compared to the open cohort, SMD of-0.53(95%CI:-0.73 to-0.32), P < 0.001.CONCLUSION: This review suggests that laparoscopic resection of hepatocellular carcinoma in patients with cirrhosis is safe and may provide improved patient outcomes when compared to the open technique. | Ahmed Twaij Philip H Pucher Mikael H Sodergren Tamara Gall Ara Darzi Long R Jiao | 2014 | World Journal of Gastroenterology2014，20，25： | 16 |
| 6 | 基于激光雷达的移动机器人实时位姿估计方法研究显示文摘位姿估计是移动机器人研究中的一个关键问题,对于运动目标跟踪、机器人导航、地图生成等具有重要意义.提出了一种基于二维激光雷达的实时位姿估计方法,包括基于Hough变换的切线角度直方图算法和迭代切线加权最近点算法两部分.两种算法的结合和切线信息的引入,有效地解决了传统方法无法解决的局部最小值、类孔径、大计算量等问题.仿真数据和室外环境实际数据的大量实验结果表明它具有精度高、速度快、适用性广和对噪声、遮挡和类孔径问题鲁棒性高的特点. | 杨明 董斌 王宏 张钹 Helder Araújo | 2004 | 自动化学报2004，30，5： | 11 |
| 7 | Role of mi RNAs and their potential to be useful as diagnostic and prognostic biomarkers in gastric cancer显示文摘Alterations in epigenetic control of gene expression play an important role in many diseases, including gastric cancer. Many studies have identified a large number of upregulated oncogenic mi RNAs and downregulated tumour-suppressor mi RNAs in this type of cancer. In this review, we provide an overview of the role of mi RNAs, pointing to their potential to be useful as diagnostic and/or prognostic biomarkers in gastric cancer. Moreover, we discuss the influence of polymorphisms and epigenetic modifications on mi RNA activity. | Kelly Cristina da Silva Oliveira Taíssa Maíra Thomaz Araújo Camila Inagaki Albuquerque Gabriela Alcantara Barata Carolina Oliveira Gigek Mariana Ferreira Leal Fernanda Wisnieski Fernando Augusto Rodrigues Mello Junior André Salim Khayat Paulo Pimentel de Assumpcao Rommel Mário Rodriguez Burbano Marília Cardoso Smith Danielle Queiroz Calcagno | 2016 | World Journal of Gastroenterology2016，22，35： | 11 |
| 8 | Research advances on the multiple uses of Moringa oleifera: a sustainable alternative for socially neglected population显示文摘Moringa oleifera Lam(Moringaceae) is a plant with high nutritional and medicinal value. Native to India, it is now widely distributed throughout tropical and subtropical regions of the world. Its different parts are sources of proteins, vitamins and minerals and present different pharmacological and biotechnological potential. Moreover, M. oleifera seeds are widely used in water and effluent treatment, for their coagulation, flocculation and sedimentation properties, their ability of improving water quality, by reducing organic matter and microbial load, with special applicability in intensive animal production systems, such as aquaculture. In addition, due to its high nutritional value and several medicinal properties, this tree may act as a nutritional and medical alternative for socially neglected populations. In this context, this review gathers information on M. oleifera, emphasizing its chemical constituents, nutritional, pharmacological and antimicrobial properties, applications in the treatment of water effluents, and ecological and social aspects. | Raimunda Samia Nogueira Brilhante Jamille Alencar Sales Vandbergue Santos Pereira Débora de Souza Collares Maia Castelo-Branco Rossana de Aguiar Cordeiro Célia Maria de Souza Sampaio Manoel de Araújo Neto Paiva Joao Bosco Feitosa dos Santos JoséJúlio CostaSidrim Marcos Fábio Gadelha Rocha | 2017 | Asian Pacific Journal of Tropical Medicine2017，10，7： | 10 |
| 9 | Unusual histopathological findings in appendectomy specimens from patients with suspected acute appendicitis显示文摘AIM: To investigate the prevalence and implications of unusual histopathological findings in appendectomy specimens from patients with suspected acute appendicitis. METHODS: The demographic and histopathological data of 1621 patients (≥ 16 years-old) who underwent appendectomy to treat an initial diagnosis of acute appendicitis between January 1999 and November 2011 were retrospectively assessed. Microscopic findings were used to classify the patients under six categories: appendix vermiformis, phlegmonous appendicitis, gan- grenous appendicitis, perforated appendicitis, supurative appendicitis, and unusual histopathologic findings. The demographic and clinicopathologic characteristics of patients with unusual histopathologic findings were evaluated in detail, and re-analysis of archived resected appendix specimens was carried out. RESULTS: A total of 912 males and 709 females, from16 to 94 years old, were included in the study and comprised 789 cases of suppurative appendicitis, 370 cases of appendix vermiformis, 243 cases of perforated gangrenous appendicitis, 53 cases of flegmaneous appendicitis, 32 cases of gangrenous appendicitis, and 134 (8.3%) cases of unusual histopathological findings. The unusual histopathological findings included fibrous obliteration (n = 62), enterobius vermicularis (n = 31), eosinophilic infiltration (n = 10), mucinous cystadenoma (n = 8), carcinoid tumor (n = 6), granulomatous inflammation (n = 5), adenocarcinoma (n = 4; one of them mucinous), and mucocele (n = 3), adenomatous polyp (n = 1), taenia sup (n = 1), ascaris lumbricoides (n = 1), appendiceal diverticula (n = 1), and B cell non-hodgkin lymphoma (n = 1). None of the 11 patients with subsequent diagnosis of tumor were suspected of cancer prior to the appendectomy. CONCLUSION: Even when the macroscopic appearance of appendectomy specimens is normal, histopathological assessment will allow early diagnosis of many unusual diseases. | Mehmet Yilmaz Sami Akbulut Koray Kutluturk Nurhan Sahin Ebru Arabaci Cengiz Ara Sezai Yilmaz | 2013 | World Journal of Gastroenterology2013，19，25： | 9 |
| 10 | Modernity in tradition: Reflections on building design and technology in the Asian vernacular显示文摘 | Mamun Rashid Dilshad Rahat Ara | 2015 | Frontiers of Architectural Research2015，4，1： | 7 |
| 11 | Insights into gastric neuroendocrine tumors burden显示文摘Type 1 gastric neuroendocrine tumors(g NETs)are usually small lesions,restricted to mucosal and sub-mucosal layers of corpus and fundus,with low aggressive behavior,for the majority of cases.Nevertheless,some cases present aggressive behavior.The increasing incidence of g NETs brings together a new relevant problem:how to identify potentially aggressive type 1 g NETs.The challenging problem seems to be finding out signs or features able to predict potentially aggressive cases,allowing a tailored approach,since the involved societies dedicated to provide guidelines for management of these neoplasms apparently failed in producing staging systems able to accurately predict prognosis of these tumors.Additionally,it is also important to try to find out explanations for increasing incidence,as well as to identify potential targets aiming to reach better control of this neoplasia.Here,we discuss potential pathways implicated in aggressive behavior,as well as new strategies to improve clinical management of these tumors. | Taíssa Maíra Thomaz Araújo Williams Fernandes Barra André Salim Khayat Paulo Pimentel de Assumpcao | 2017 | Chinese Journal of Cancer Research2017，29，2： | 7 |
| 12 | HER2 therapies and gastric cancer:A step forward显示文摘Gastric cancer usually is diagnosed in advanced stages and thus current medical practice affords limited therapeutic options.However,recent studies established the role of human epidermal growth factor receptor 2(HER2)in clinical management.Trastuzumab,an antiHER2 monoclonal antibody,acquired a main role in advanced gastric cancer harboring HER2 overexpression and/or amplification improving survival to 17.1 mo according to trastuzumab for gastric cancer phaseⅢtrial results.Also,new promising drugs,such as c-Met inhibitors,are in development and assessment for this setting.Certainly,novel drugs will emerge in the next feel years for help oncologists improve clinical management of advanced gastric cancer providing higher survival and quality of life.In this mini-review we will discuss some issues in this regard and provide an actual overview of this setting. | Ramon Andrade de Mello Andrea Marin Marques António Araújo | 2013 | World Journal of Gastroenterology2013，19，37： | 7 |
| 13 | Personalizing therapies for gastric cancer: Molecular mechanisms and novel targeted therapies显示文摘Globally,gastric cancer is the 4thmost frequently diagnosed cancer and the 2ndleading cause of death from cancer,with an estimated 990000 new cases and738000 deaths registered in 2008.In the advanced setting,standard chemotherapies protocols acquired an important role since last decades in prolong survival.Moreover,recent advances in molecular therapies provided a new interesting weapon to treat advanced gastric cancer through anti-human epidermal growth factor receptor 2(HER2)therapies.Trastuzumab,an anti-HER2 monoclonal antibody,was the first target drug in the metastatic setting that showed benefit in overall survival when in association with platinum-5-fluorouracil based chemotherapy.Further,HER2 overexpression analysis acquired a main role in predict response for trastuzumab in this field.Thus,we conducted a review that will discuss the main points concerning trastuzumab and HER2 in gastric cancer,providing a comprehensive overview of molecular mechanisms and novel trials involved. | Michael Luis Ana Tavares Liliana S Carvalho Lúcio Lara-Santos António Araújo Ramon Andrade de Mello | 2013 | World Journal of Gastroenterology2013，19，38： | 6 |
| 14 | Primary malignant melanoma of the esophagus:A case report显示文摘The authors present the clinical case of an 87-year-old Caucasian male admitted to the emergency room with hematemesis. He had a history of intermittent dys-phagia during the previous month. Endoscopic evaluation revealed an eccentric,soft esophageal lesionlocated 25-35 cm from the incisors,which appeared asa protrusion of the esophagus wall,with active bleeding. Biopsies were acquired. Tissue evaluation wascompatible with a melanoma. After excluding other sites of primary neoplasm,the definitive diagnosis of Primary Malignant Melanoma of the Esophagus(PMME) was made. The patient developed a hospital-acquired respiratory infection and died before tumor-directed treatment could begin. Primary malignant melanoma represents only 0.1% to 0.2% of all esophageal ma-lignant tumors. Risk factors for PMME are not defined.A higher incidence of PMME has been described in Japan. Dysphagia,predominantly for solids,is the most frequent symptom at presentation. Retrosternal orepigastric discom fort or pain,melena or hemate mesishave also been described. The characteristic endoscopic finding of PMME is as a polypoid lesion,with variablesize,usually pigmented. The neoplasm occurs in thelower two-thirds of the esophagus in 86% of cases.PMME metastasizes via hematogenic and lymphatic pathways. At diagnosis,50% of the patients present with distant metastases to the liver,the mediastinum,the lungs and the brain. When possible,surgery(curative or palliative) ,is the preferential method of treatment. There are some reports in the literature where chemotherapy,chemohormon otherapy,radiotherapy and immunotherapy,with or without surgery,wereused with variable efficacy. The prognosis is poor;themean survival after surgery is less than 15 mo. | Joana Machado Paula Ministro Ricardo Araújo Eugénia Cancela António Castanheira Américo Silva | 2011 | World Journal of Gastroenterology2011，17，42： | 6 |
| 15 | Nomograms for predicting pathological response to neoadjuvant treatments in patients with rectal cancer显示文摘BACKGROUND In recent decades, neoadjuvant therapy(NT) has been the standardized treatment for locally advanced rectal cancer(LARC). Approximately 8%-35% of patients with LARC who received NT were reported to have achieved a complete pathological response(pCR). If the pathological response(PR) can be accurately predicted, these patients may not need surgery. In addition, no response after NT implies that the tumor is destructive, resistant to both chemotherapy and radiotherapy, and prone to having a high metastatic potential. Therefore,developing accurate models to predict PR has great clinical significance and can help achieve individualized treatment in LARC patients.AIM To establish nomograms for predicting PR to different NT regimens based on pretreatment parameters for patients with LARC.METHODS Rectal cancer patients were identified from the database of The Sixth Affiliated Hospital, Sun Yat-sen University from January 2012 to December 2016. Logistic regression and nomograms were developed to predict the probability of pCR and good downstaging to ypT0-2N0M0(ypTNM 0-I), respectively, based on pretreatment parameters for all LARC patients. Nomograms were also developed for three NT regimens(capecitabine/deGramont-RT, mFOLFOX6, and m FOLFOX6-RT) to predict pCR probability.RESULTS Four hundred and three patients were included in this study; 72(17.9%) had pCR at the final pathology report, and 177(43.9%) achieved good downstaging to ypT0-2N0M0(ypTNM 0-I). The nomogram for predicting pCR probability showed that NT regimens, tumor differentiation, mesorectal fascia(MRF) status,and tumor length significantly influenced pCR probability. When predicting the probability of good downstaging, tumor differentiation, MRF status, and clinical T stage were the significant factors. Nomograms were developed based on NT regimens. For the capecitabine/de Gramont-RT group, the multivariate analysis showed that the neutrophil-lymphocyte ratio(NLR) was the only significant factor, thus we could not develop a nomogram for this regimen. For the m FOLFOX6-RT group, the analysis showed that the significant factors were tumor length and MRF status; and for the mFOLFOX6 group, the significant factors were tumor length and tumor differentiation.CONCLUSION We established accurate nomograms for predicting the PR to preoperative NT regimens based on pretreatment parameters for LARC patients. | Dong-Lin Ren Juan Li Hui-Chuan Yu Shao-Yong Peng Wei-Da Lin Xiao-Lin Wang Roshan Ara Ghoorun Yan-Xin Luo | 2019 | World Journal of Gastroenterology2019，25，1： | 6 |
| 16 | Mitochondrial DNA mutations-candidate biomarkers for breast cancer diagnosis in Bangladesh显示文摘Breast cancer is a major health problem that affects more than 24% of women in Bangladesh. Furthermore, among low-income countries including Bangladesh, individuals have a high risk for developing breast cancer. This study aimed to identify candidate mitochondrial DNA (mtDNA) biomarkers for breast cancer diagnosis in Bangladeshi women to be used as a preventive approach. We screened the blood samples from 24 breast cancer patients and 20 healthy controls to detect polymorphisms in the D-loop and the ND3-and ND4-coding regions of mtDNA by direct sequencing. Among 14 distinct mutations, 10 polymorphisms were found in the D-loop, 3 were found in the ND3-coding region, and 1 was found in the ND4-coding region. The frequency of two novel polymorphisms in the D-loop, one at position 16290 (Tins) and the other at position 16293 (A-del), was higher in breast cancer patients than in control subjects (position 16290: odds ratio = 6.011, 95% confidence interval = 1.2482 to 28.8411, P = 0.002; position 16293: odds ratio = 5.6028, 95% confidence interval = 1.4357 to 21.8925, P = 0.010). We also observed one novel mutation in the ND3-coding region at position 10316 (A > G) in 69% of breast cancer patients but not in control subjects. The study suggests that two novel polymorphisms in the D-loop may be candidate biomarkers for breast | Gazi Nurun Nahar Sultana Atiqur Rahman Abu Din Ahmed Shahinuzzaman Rowshan Ara Begum Chowdhury Faiz Hossain | 2012 | Chinese Journal of Cancer2012，31，9： | 5 |
| 17 | Midkine, a cytokine that inhibits HIV infection by binding to the cell surface expressed nucleolin显示文摘生长因素 midkine (MK ) 是由堵住 HIV 粒子的附件到容许的细胞在 autocrine 和 paracrine 举止在细胞文化禁止 HIV 感染的 cytokine。MK mRNA 系统地从健康施主在成年的外部血淋巴细胞被表示,当它的表示显著地变得时,但是短暂地增加了在之上在有由公众房产管理局或通过 CD28 抗原的约会的 T 淋巴细胞的 IL-2 或 IFN-gamma 和激活的淋巴细胞的 vitro 治疗。到房间的 MK 的绑定在高度和一个低亲密关系绑定地点明确地发生。这个低亲密关系绑定地点是房间表面表示了 nucleolin,它在 HIV 粒子的起始的附件的机制被含有到房间。因此,而它阻止 MK 的绑定到低亲密关系绑定地点, nucleolin 有约束力的 HB-19 假肽没在 MK 绑定上有效果到高亲密关系绑定地点,因此建议 MK 的低亲密关系受体是 cell-surface-expressed nucleolin。共焦的免疫荧光激光显微镜学在不同的点揭示了 MK 和 cell-surface-expressed nucleolin 的 colocalization。nucleolin 的各种各样的删除构造的使用然后显示极端 C 终端 nucleolin 结束,包含氨基酸主题 RGG 的重复,作为绑 MK 的领域。到表面 nucleolin 的 MK 的特定的绑定独立于 heparan 硫酸盐和 chondroitin 硫酸盐 proteoglycans。在到房间的绑定以后, MK 由 nucleolin 和类脂化合物椽子在看起来被含有的一个活跃过程进入房间。有势力和与它在由各种各样的生理的刺激的淋巴细胞的提高的表示一起的 MK 的不同 anti-HIV 行动,指出 MK 是能涉及 HIV 的 cytokine 致病。 | Ara G Hovanessian | 2006 | Cell Research2006，16，2： | 5 |
| 18 | Kinetic study on leaching of nickel from Turkish lateritic ore in nitric acid solution显示文摘Dissolution kinetics of nickel from lateritic ore in nitric acid solution was investigated. Experimental parameters used were stirring speed(100-600 r/min), temperature(40-96 °C), nitric acid concentration(0.1-2 mol/L) and particle size(<106 μm). The shrinking core model was applied to the results of experiments investigating the effects of leaching temperature in the range of 40-90 °C and nitric acid concentration in range of 0.1-2 mol/L on nickel dissolution rate. The kinetic analysis shows that the nickel dissolution from lateritic ore could be described by diffusion model. The activation energy(E_a) for the dissolution reaction is calculated as 79.52 kJ/mol. | Tevfik AGACAYAK Veysel ZEDEF Ali ARAS | 2016 | Journal of Central South University2016，23，1： | 4 |
| 19 | Neuroprotective effects of daidzein on focal cerebral ischemia injury in rats显示文摘Daidzein, a plant extract, has antioxidant activity. It is hypothesized, in this study, that daidzein exhibits neuroprotective effects on cerebral ischemia. Rat models of middle cerebral artery occlusion were intraperitoneally administered daidzein. Biochemical and immunohistochemical tests showed that superoxide dismutase and nuclear respiratory factor 1 expression levels in the brain tissue decreased after ischemia and they increased obviously after daidzein administration; malondialdehyde level and apoptosis-related cysteine peptidase caspase-3 and caspase-9 immunoreactivity in the brain tissue increased after ischemia and they decreased obviously after daidzein administration. Hematoxylin-eosin staining and luxol fast blue staining results showed that intraperitoneal administration of daidzein markedly alleviated neuronal damage in the ischemic brain tissue. These findings suggest that daidzein exhibits neuroprotective effects on ischemic brain tissue by decreasing oxygen free radical production, which validates the aforementioned hypothesis. | Adem Bozkurt Aras Mustafa Guven Tar?k Akman Adile Ozkan Halil Murat Sen Ugur Duz Y?ld?ray Kalkan Coskun Silan Murat Cosar | 2015 | Neural Regeneration Research2015，10，1： | 4 |
| 20 | 运用光谱参数冠层覆盖度建立作物长势及氮营养状态模型显示文摘为了探索运用数码照片中光谱(红、绿、蓝)的像素计算得到的冠层覆盖度(canopy cover,CC)对玉米长势及氮素营养状态进行非破坏性监测的技术。通过获取玉米冠层的数码照片图像,定量化数码照片色彩参数与作物叶面积指数(leaf area index,LAI)、冠层干重(shoot dry matter weight,DM)、叶片氮素含量(leaf nitrogen content percentage,N%)之间的关系。试验于2012年和2013年在中国农业科学院试验田进行,运用基于Visual Basic Version 6.0研发的玉米冠层图像分析系统,分析了玉米品种中单909在3个氮素水平条件下分别于9叶展时期、抽雄期和灌浆期的CC、11种色彩指数与植株LAI,DM,N%及产量之间的相关性,并对相关性显著的指标进行了拟合与建模。结果表明,CC与LAI(r=0.93,p<0.01),DM(r=0.94,p<0.01),N%(r=0.82,p<0.01)之间均达到了极显著水平;用CC估算LAI,DM和N%的模型均为幂函数,方程式分别是y=3.281 2x^(0.763 9),y=283.658 1x^(0.553 6),y=3.064 5x^(0.932 9);用与建模相独立的数据对模型验证,结果表明,CC估算LAI模型的实测值与模拟值基于1∶1直线的R^2,RMSE和RE分别是0.996,0.035和1.46%;CC估算DM模型的R^2,RMSE和RE分别是0.978,5.408g和2.43%;CC估算N%模型的R^2,RMSE和RE分别是0.990,0.054和2.62%。综上所述,模型能够较准确的通过CC估算不同氮肥水平条件下玉米9叶展时期、抽雄期和灌浆期的LAI,DM与N%,表明应用数码相机的光谱信息可实现对玉米生长过程中的生长状况及氮素营养状态进行实时无损快速监测与预测。 | 陶志强 Shamim Ara Bagum 马玮 周宝元 付金东 崔日鲜 孙雪芳 赵明 | 2016 | 光谱学与光谱分析2016，36，1： | 4 |
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