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1Myocardial reperfusion injury and oxidative stress: Therapeutic opportunities显示文摘Acute myocardial infarction(AMI) is the leading cause of death worldwide. Its associated mortality, morbidity and complications have significantly decreased with the development of interventional cardiology and percutaneous coronary angioplasty(PCA) treatment, which quick-ly and effectively restore the blood flow to the area previously subjected to ischemia. Paradoxi-cally, the restoration of blood flow to the ischemic zone leads to a massive production of reactive oxygen species(ROS) which generate rapid and severe damage to biomolecules, generating a phenomenon called myocardial reperfusion injury(MRI). In the clinical setting, MRI is associated with multiple complications such as lethal reperfusion, no-reflow, myocardial stunning, and reperfusion arrhythmias. Despite significant advances in the understanding of the mechanisms accounting for the myocardial ischemia reperfusion injury, it remains an unsolved problem. Although promising results have been obtained in experimental studies(mainly in animal models), these benefits have not been translated into clinical settings. Thus, clinical trials have failed to find benefits from any therapy to prevent MRI. There is major evidence with respect to the contribution of oxidative stress to MRI in cardiovascular diseases. The lack- of consistency between basic studies and clinical trials is not solely based on the diversity inherent in epidemiology but is also a result of the methodological weak-nesses of some studies. It is quite possible that pharmacological issues, such as doses, active ingredients, bioavailability, routes of administration, co-therapies, startup time of the drug intervention,and its continuity may also have some responsibility for the lack- of consistency between different studies. Furthermore, the administration of high ascorbate doses prior to reperfusion appears to be a safe and rational therapy against the development of oxidative damage associated with myocardial reperfusion. In addition, the association with N-acetylcysteine(a glutathione donor) and deferoxamine(an iron chelator) could improve the antioxidant cardioprotection by ascorbate, mak-ing it even more effective in preventing myocardial reperfusion damage associated with PCA following AMI.Jaime González-Montero Roberto Brito Abraham IJ Gajardo Ramón Rodrigo 2018World Journal of Cardiology2018,10,9:56
2Generation of new glutinous rice by CRISPR/Cas9-targeted mutagenesis of the Waxy gene in elite rice varieties显示文摘In rice, amylose content(AC) is controlled by a single dominant Waxy gene. We used Clustered Regularly Interspaced Short Palindromic Repeats(CRISPR)/CRISPR-associated 9(Cas_9) to introduce a loss-of-function mutation into the Waxy gene in two widely cultivated elite japonica varieties. Our results show that mutations in the Waxy gene reduce AC and convert the rice into glutinous ones without affecting other desirable agronomic traits, offering an effective and easy strategy to improve glutinosity in elite varieties. Importantly, we successfully removed the transgenes from the progeny. Our study provides an example of generating improved crops with potential for commercialization, by editing a gene of interest directly in elite crop varieties.Jinshan Zhang Hui Zhang Jose Ramón Botella Jian-Kang Zhu 2018Journal of Integrative Plant Biology2018,60,5:49
3Complications of hip fractures: A review显示文摘Nowadays, fracture surgery represents a big part of the orthopedic surgeon workload, and usually has associated major clinical and social cost implications. These fractures have several complications. Some of these are medical, and other related to the surgical treatment itself. Medical complications may affect around 20% of patients with hip fracture. Cognitive and neurological alterations, cardiopulmonary affections(alone or combined), venous thromboembolism, gastrointestinal tract bleeding, urinary tract complications, perioperative anemia, electrolytic and metabolic disorders, and pressure scars are the most important medical complications after hip surgery in terms of frequency, increase of length of stay and perioperative mortality. Complications arising from hip fracture surgery are fairly common, and vary depending on whether the fracture is intracapsular or extracapsular. The main problems in intracapsular fractures are biological: vascularization of the femoral head, and lack of periosteum-a major contributor to fracture healing- in the femoral neck. In extracapsularfractures, by contrast, the problem is mechanical, and relates to load-bearing. Early surgical fixation, the role of anti-thromboembolic and anti-infective prophylaxis, good pain control at the perioperative, detection and management of delirium, correct urinary tract management, avoidance of malnutrition, vitamin D supplementation, osteoporosis treatment and advancement of early mobilization to improve functional recovery and falls prevention are basic recommendations for an optimal maintenance of hip fractured patients.Pedro Carpintero Jose Ramón Caeiro Rocío Carpintero Angela Morales Samuel Silva Manuel Mesa 2014World Journal of Orthopedics2014,5,4:31
4Anterior resection for rectal carcinoma-risk factors for anastomotic leaks and strictures显示文摘AIM:To determine the incidence and factors responsible for anastomotic leaks and stricture following anterior resection(AR)and its subsequent management.METHODS:Retrospective analysis of data from 108 patients with rectal carcinoma who underwent AR or low anterior resection(LAR)to identify the various preoperative,operative,and post operative factors that might have influence on anastomotic leaks and strictures.RESULTS:There were 68 males and 40 females with an average of 47 years(range 21-75 years).The median distance of the tumor from the anal verge was 8 cm(range 3-15 cm).Sixty(55.6%)patients underwent handsewn anastomosis and 48(44.4%)were stapled.The median operating time was 3.5 h(range2.0-7.5 h).Sixteen(14.6%)patients had an anastomotic leak.Among these,11 patients required reexploration and five were managed expectantly.The anastomotic leak rate was similar in patients with and without diverting stoma(8/60,13.4%with stoma and 8/48;16.7%without stoma).In 15(13.9%)patients,resection margins were positive for malignancy.Ninteen(17.6%)patients developed anastomotic strictures at a median duration of 8 mo(range 3-20 mo).Among these,15 patients were successfully managed with per-anal dilatation.On multivariate analysis,advance age(>60 years)was the only risk factor for anastomotic leak(P=0.004).On the other hand,anastomotic leak(P=0.00),mucin positive tumor(P =0.021),and lower rectal growth(P=0.011)were found as risk factors for the development of an anastomotic stricture.CONCLUSION:Advance age is a risk factor for an anastomotic leak.An anastomotic leak,a mucin-secreting tumor,and lower rectal growth predispose patients to develop anastomotic strictures.Ashok Kumar Ram Daga Paari Vijayaragavan Anand Prakash Rajneesh Kumar Singh Anu Behari Vinay K Kapoor Rajan Saxena 2011World Journal of Gastroenterology2011,17,11:28
5Endoscopic extraction of large common bile duct stones:A review article显示文摘Since therapeutic endoscopic retrograde cholangiopancreatography replaced surgery as the first approach in cases of choledocolithiasis,a plethora of endoscopic techniques and devices appeared in order to facilitate rapid,safe and effective bile duct stones extraction.Nowadays,endoscopic sphincterotomy combined with balloon catheters and/or baskets is the routine endoscopic technique for stone extraction in the great majority of patients.Large common bile duct stones are treated conventionally with mechanical lithotripsy,while the most serious complication of the procedure is 'basket and stone impaction' that is predominately resolved surgically.In cases of difficult,impacted,multiple or intrahepatic stones,more sophisticated procedures have been used.Electrohydraulic lithotripsy and laser lithotripsy are performed using conventional mother-baby scope systems,ultra-thin cholangio-scopes,thin endoscopes and ultimately using the novel single use,single operator SpyGlass Direct Visualization System,in order to deliver intracorporeal shock wave energy to fragment the targeted stone,with very good outcomes.Recently,large balloon dilation after endoscopic sphincterotomy confirmed its effectiveness in the extraction of large stones in a plethora of trials.When compared with mechanical lithotripsy or with balloon dilation alone,it proved to be superior.Moreover,dilation is an ideal alternative in cases of altered anatomy where access to the papilla is problematic.Endoscopic sphincterotomy followed by large balloon dilation represents the onset of a new era in large bile duct stone extraction and the management of 'impaction' because it seems that is an effective,inexpensive,less traumatic,safe and easy method that does not require sophisticated apparatus and can be performed widely by skillful endoscopists.When complete extraction of large stones is unsuccessful,the drainage of the common bile duct is mandatory either for bridging to the final therapy or as a curative therapy for very elderly patients with short life expectancy.Placing of more than one plastic endoprostheses is better while the administration of Ursodiol is ineffective.The great majority of patients with large stones can be treated endoscopically.In cases of unsuccessful stone extraction using balloons,baskets,mechanical lithotripsy,electrohydraulic or laser lithotripsy and large balloon dilation,the patient should be referred for extracorporeal shock wave lithotripsy or a percutaneous approach and finally surgery.Gerasimos Stefanidis Christos Christodoulou Spilios Manolakopoulos Ram Chuttani 2012World Journal of Gastrointestinal Endoscopy2012,4,5:23
6Factors predicting poor prognosis in ischemic colitis显示文摘瞄准:决定临床、分析、内视镜的因素与有关是化学家大肠炎(IC ) 严厉。方法:85 个病人的一个总数从 1996 年 1 月在回顾的研究被注册到 2004 年 5 月。有 53 女性和 32 男性(年龄 74.6+/-9.4 年,范围 45-89 年) 。病人作为 IC 被诊断。下列变量包括年龄,性别,从到承认的症状的外观的时间的经期,病历,药,凳子频率,临床的症状和症状被分析,验血(血克和基本生物化学的侧面) ,和内视镜的调查结果。病人们在温和 IC 组和严重 IC 组(外科或死亡) 被划分。质的变量用 chi 平方测试被分析,参量的数据用学生的 t (P<0.05 ) 被分析。结果:温和 IC 组 69 个病人被在于(42 女性和 27 男性,平均年龄 74.7+/-12.4 年) 。严重 IC 组由 16 个病人组成(11 女性和 5 男性,平均 73.8+/-12.4 年的年龄) 。因为麦克匪特斯氏疗法(没有外科) 的失败,一个病人死了, 15 个病人经历了外科(6 在内视镜的诊断以后并且 9 在 peroperatory 以后诊断) 。85 个病人(9.6%) 中的八个死了,其它被跟随在上面作为为 9.6+/-3.5 瞬间的门诊病人。人口统计的数据,病历,药和凳子频率在两个组(P>0.05 ) 是类似的。说正经的有病的病人比稍微有病的病人有更少的便血(37.5% 对 86.9% , P = 0.000 ) 。更多的心悸亢进(45.4% 对 10.1% , P = 0.011 ) 并且假腹膜炎的更高的流行签名(75% 对 5.7% , P = 0.000 ) 当腹的疼痛的存在和紧张在二个组之间是类似的时,在严重 IC 组被观察。当承认时,有严重 IC 的二个病人有吃惊。关于分析数据,更严重有病的病人被发现比略微有病的病人有贫血症和血钠过少(37.5% 对 10.1% , P = 0.014 和 46.6% 对 14.9% , P = 0.012,分别地) 。狭窄是那比在稍微有病的病人更经常出现在严重有病的病人的唯一的内视镜的发现(66.6% 对 17.3% , P = 0.017 ) 。结论:能预言 IC 的差的预后是便血,心悸亢进和假腹膜炎,贫血症和血钠过少和狭窄的缺席的因素。Ramón A■ón Marta Maia Boscá Vicente Sanchiz Joan Tosca Pedro Almela Cirilo Amorós Adolfo Benages 2006World Journal of Gastroenterology2006,12,30:21
7为 cholangiocarcinoma 的化疗: 更改显示文摘 Cholangiocarcinomas(bile duct cancers) are a heterogeneous group of malignancies arising from the epithelial cells of the intrahepatic,perihilar and extrahepatic bile ducts.Patients diagnosed with cholangiocarcinoma must be evaluated by a multidisciplinary team and be treated with individualized management.First of all,it is very important to define the potential resectability of the tumor because surgery is the main therapeutic option for these patients.Overall,cholangiocarcinomas have a very poor prognosis.The 5 year survival rate is 5%-10%.In cases with a potentially curative surgery,5 year survival rates of 25%-30% are reported.Therefore,it is necessary to increase the cure rate from surgery,exploring the survival benefit of any adjuvant strategy.It is difficult to clarify the role of adjuvant treatment in localized and locally advanced cholangiocarcinomas.There are limited data and the role of adjuvant chemotherapy/chemoradiation in patients with resected biliary tract cancer is poorly defined.The most relevant studies in the adjuvant setting are one from Japan,the well known ESPAC-3 and BILCAP from the United Kingdom and a meta-analysis.We show the results of these trials.According to medical oncology guidelines,postoperative adjuvant therapy is widely recommended for all patients with intrahepatic or extrahepatic cholangiocarcinoma who have microscopically positive resection margins,as well as for those with a complete resection but node-positive disease.Clinical trials are ongoing.The locally advanced cholangiocarcinoma setting includes a heterogeneous mix of patients:(1) patients who have had surgery but with macroscopic residual disease;(2) patients with locally recurrent disease after potentially curative treatment;and(3) patients with locally unresectable disease at presentation.In these patients,surgery is not an option and chemoradiation therapy can prolong overall survival and provide control of symptoms due to local tumor effects.Nowadays,no neoadjuvant therapy can be considered a standard approach for the treatment of patients with cholangiocarcinoma.There are promising results and randomized trials are needed in patients with a metastatic cholangiocarcinoma.In systemic therapy,no single drug or combination has consistently increased median survival beyond the expected 8-12 mo.It is always recommended that patients enrol in clinical trials.Clinical trials have shown that the more standard chemotherapy for a first line regimen of gemcitabine plus cisplatin(or oxaliplatin as a potentially better tolerated agent) is superior to gemcitabine alone.Leucovorinmodulated 5-fluorouracil,capecitabine monotherapy or single agent gemcitabine are reasonable options for patients with a borderline performance status.After progression in patients with an adequate performance status,active regimens that could be considered include gemcitabine plus capecitabine,or erlotinib plus bevacizumab,for second line treatment.Natalia Ramírez-Merino Santiago Ponce Aix Hernán Cortés-Funes 2013World Journal of Gastrointestinal Oncology2013,5,7:20
8Essential hypertension and oxidative stress:New insights显示文摘Essential hypertension is a highly prevalent pathological condition that is considered as one of the most relevant cardiovascular risk factors and is an important cause of morbidity and mortality around the world. Despite the fact that mechanisms underlying hypertension are not yet fully elucidated,a large amount of evidence shows that oxidative stress plays a central role in its pathophysiology. Oxidative stress can be defined as an imbalance between oxidant agents,such as superoxide anion,and antioxidant molecules,and leads to a decrease in nitric oxide bioavailability,which is the main factor responsible for maintaining the vascular tone. Several vasoconstrictor peptides,such as angiotensin Ⅱ,endothelin-1 and urotensin Ⅱ,act through their receptors to stimulate the production of reactive oxygen species,by activating enzymes like NADPH oxidase andxanthine oxidase. The knowledge of the mechanism described above has allowed generating new therapeutic strategies against hypertension based on the use of antioxidants agents,including vitamin C and E,N-Acetylcysteine,polyphenols and selenium,among others. These substances have different therapeutic targets,but all represent antioxidant reinforcement. Several clinical trials using antioxidants have been made. The aim of the present review is to provide new insights about the key role of oxidative stress in the pathophysiology of essential hypertension and new clinical attempts to demonstrate the usefulness of antioxidant therapy in the treatment of hypertension.Jaime González Nicolás Valls Roberto Brito Ramón Rodrigo 2014World Journal of Cardiology2014,6,6:20
9Critical review of EPS production, synthesis and composition for sludge flocculation显示文摘Extracellular polymeric substances(EPS) produced by microorganisms represent biological macromolecules with unfathomable potentials and they are required to be explored further for their potential application as a bioflocculant in various wastewater sludge treatment. Although several studies already exist on biosynthetic pathways of different classical biopolymers like alginate and xanthan, no dedicated studies are available for EPS in sludge. This review highlights the EPS composition, functionality, and biodegradability for its potential use as a carbon source for production of other metabolites. Furthermore, the effect of various extraction methods(physical and chemical) on compositional, structural, physical and functional properties of microbial EPS has been addressed. The vital knowledge of the effect of extraction method on various important attributes of EPS can help to choose the suitable extraction method depending upon the intended use of EPS. The possible use of different molecular biological techniques for enhanced production of desired EPS was summarized.Klai Nouha Ram Saurabh Kumar Sellamuthu Balasubramanian Rajeshwar Dayal Tyagi 2018Journal of Environmental Sciences2018,30,4:19
10高血压的时间治疗学显示文摘Ramón C. Hermida Diana E. Ayala Michael H. Smolensky Francesco Portaluppi 赵子彦 2007中华高血压杂志2007,15,8:18
11Platelet count/spleen diameter ratio to predict esophageal varices in Mexican patients with hepatic cirrhosis显示文摘AIM:To validate whether the platelet count/spleen size ratio can be used to predict the presence of esophageal varices in Mexican patients with hepatic cirrhosis.METHODS:This was an analytical cross-sectional study to validate the diagnostic test for hepatic cirrhosis and was performed between February 2010 and December 2011.Patients with a diagnosis of hepatic cirrhosis were included and stratified using their ChildPugh score.Biochemical parameters were evaluated,and ultrasound was used to measure the longest diameter of the spleen.The platelet count/spleen diameter ratio was calculated and analyzed to determine whether it can predict the presence of esophageal varices.Upper gastrointestinal endoscopy was used as the gold standard.Sensitivity and specificity,positive and negative predictive values,and positive and negative likelihood ratios were determined,with the cutoff points determined by receiver-operating characteristic curves.RESULTS:A total of 91 patients were included.The mean age was 53.75±12 years;50(54.9%)were men,and 41(45.0%)women.The etiology of cirrhosis included alcohol in 48(52.7%),virally induced in24(26.3%),alcoholism plus hepatitis C virus in three(3.2%),cryptogenic in nine(9.8%),and primary biliary cirrhosis in seven(7.6%).Esophageal varices were present in 73(80.2%)patients.Child-Pugh classification,17(18.6%)patients were classified as class A,37(40.6%)as class B,and 37(40.6%)as class C.The platelet count/spleen diameter ratio to detect esophageal varices independent of the grade showed using a cutoff value of≤884.3,had 84%sensitivity,70%specificity,and positive and negative predictive values of 94%and 40%,respectively.CONCLUSION:Our results suggest that the platelet count/spleen diameter ratio may be a useful tool for detecting esophageal varices in patients with hepatic cirrhosis.Alejandro González-Ojeda Gabino Cervantes-Guevara Manuela Chávez-Sánchez Carlos Dávalos-Cobián Susana Ornelas-Cázares Michel Dassaejv Macías-Amezcua Mariana Chávez-Tostado Kenia Militzi Ramírez-Campos Anaís del Rocío Ramírez-Arce Clotilde Fuentes-Orozco 2014World Journal of Gastroenterology2014,20,8:18
12Liver transplantation for hilar cholangiocarcinoma显示文摘The most appropriate treatment for Klatskin tumor(KT)with a curative intention is multimodal therapy based on achieving resection with tumour-free margins(R0resections)combined with other types of neoadjuvant or adjuvant treatment(the most important factor affecting KT survival is the possibility of R0 resections,achieving 5-year survival rate of 40%-50%).Thirty to forty percent of patients with KT are inoperable and present a 5-year survival rate of 0%.In irresectable non-disseminated KT patients,using liver transplantation without neoadjuvant treatment,the 5-year survival rate increase to 38%,reaching 50%survival in early stage.In selected cases,with liver transplantation and neoadjuvant treatment(chemotherapy and radiotherapy),the actuarial survival rate is 65%at 5 years and 59%at 10 years.In conclusion,correct staging,neoadjuvant treatment,living donor and priority on the liver transplant waiting list may lead to improved results.Ricardo Robles Francisco Sánchez-Bueno Pablo Ramírez Roberto Brusadin Pascual Parrilla 2013World Journal of Gastroenterology2013,19,48:17
13Pseudoaneurysm of profunda femoris artery following dynamic hip screw fixation for intertrochanteric femoral fracture显示文摘动态新潮的螺丝钉固定是为 intertrochanteric 的内部固定的一个通常执行的过程大腿骨的破裂。跟随起作用的固定的动脉的损害是一个稀罕却严肃的事件。我们在场与一个动态新潮的螺丝钉在 intertrochanteric 骨折的内部固定以后开发了 profunda femoris 动脉的 pseudoaneurysm 的一个病人。诊断被 angiographic 学习证实,它被卷 embolization 成功地对待。Shailendra Singh Sumit Arora Ankit Thora Ram Mohan, Sumit Sural Anti Dhal 2013Chinese Journal of Traumatology2013,16,4:13
14开心散乙醇提取物中远志皂苷的入血成分及体内代谢产物分析显示文摘目的:鉴定开心散60%乙醇提取物(KXS-60%E)及其血中移行成分中的远志皂苷类成分,分析大鼠体内远志皂苷类成分的代谢产物。方法:应用UPLC-TOF-MS技术,分析TOF-MS/MS给出的二级离子信息,结合液质联用工作站Mass Lynx v4.1分析软件及现有的文献数据库,鉴定KXS-60%E中远志皂苷类成分、灌服KXS-60%E后血清中的远志皂苷类成分及其代谢产物。结果:鉴定了KXS-60%E中14个远志皂苷类成分,主要为三萜型皂苷;鉴定了大鼠口服KXS-60%E后血中的5个原型皂苷类成分及4个代谢产物。结论:远志皂苷类成分及4个代谢产物可能是KXS-60%E潜在的活性成分及直接药效物质基础,这将有助于阐明开心散防治阿尔兹海默症的有效成分及作用机制。Reeju Maharjan Chiranjivi Thapa 汪娜 Ram Chaulagain 薛迪 贾永明 邓竹君 黄树明 刘学伟 2017中国实验方剂学杂志2017,23,19:13
15Circular RNAs in colorectal cancer:Possible roles in regulation of cancer cells显示文摘Colorectal cancer(CRC) is the third most commonly diagnosed cancer in the world and the fourth principal cause of cancer deaths worldwide. Currently, there is a lack of low cost and noninvasive screening tests for CRC, becoming a serious health problem. In this context, a potential biomarker for the early detection of CRC has recently gained attention. Circular RNAs(circ RNA), a re-discovered, abundant RNA specie, is a type of noncoding covalent closed RNAs formed from both exonic and intronic sequences. These circular molecules are widely expressed in cells, exceeding the abundance of the traditional linear m RNA transcript. They can regulate gene expression, acting as real sponges for mi RNAs and also regulate alternative splicing or act as transcriptional factors and inclusive encoding for proteins. However, little is known about circ RNA and its relationship with CRC. In this review, we focus on the biogenesis, function and role of these circ RNAs in relation to CRC, including their potential as a new biomarker.María Isabel Taborda Sebastián Ramírez Giuliano Bernal 2017World Journal of Gastrointestinal Oncology2017,9,2:13
16A review on synthesis of graphene,h-BN and MoS2 for energy storage applications:Recent progress and perspectives显示文摘The significance of graphene and its two-dimensional(2D)analogous inorganic layered materials especially as hexagonal boron nitride(h-BN)and molybdenum disulphide(MoS2)for“clean energy”applications became apparent over the last few years due to their extraordinary properties.In this review article we study the current progress and selected challenges in the syntheses of graphene,h-BN and MoS2 including energy storage applications as supercapacitors and batteries.Various substrates/catalysts(metals/insulator/semiconducting)have been used to obtain graphene,h-BN and MoS2 using different kinds of precursors.The most widespread methods for synthesis of graphene,h-BN and MoS2 layers are chemical vapor deposition(CVD),plasma-enhanced CVD,hydro/solvothermal methods,liquid phase exfoliation,physical methods etc.Current research has shown that graphene,h-BN and MoS2 layered materials modified with metal oxide can have an insightful influence on the performance of energy storage devices as supercapacitors and batteries.This review article also contains the discussion on the opportunities and perspectives of these materials(graphene,h-BN and MoS2)in the energy storage fields.We expect that this witen review article including recent research on energy storage will help in generating new insights for further development and practical applications of graphene,h-BN and MoS2 layers based materials.Rajesh Kumar Sumanta Sahoo Ednan Joanni Rajesh Kumar Singh Ram Manohar Yadav Rajiv Kumar Verma Dinesh Pratap Singh Wai Kian Tan Angel Perez del Pino Stanislav A.Moshkalev Atsunori Matsuda 2019Nano Research2019,12,11:12
17精子DNA完整性与形态超高倍检测在辅助生殖技术妊娠结局中的临床价值显示文摘近年来,涌现出许多重要的男性不育诊疗新技术。本研究旨在探讨精@DNA完整性与精子空泡率检测对以男性不育因素行IvF或IcsI治疗的不育症的治疗结局。本研究针对152对不育症夫妻行ART技术前进行的精子DNA碎片率与形态学超高倍分析进行队列研究。我们发现对妊娠结局最有预测价值的DNA碎片率切点值为25.5%,阴性预测值为72.7%(P=0.02)。在对空泡率的研究中发现,3、4级的空泡精子的最有预测价值切点值为73.5%,阴性预测值为39.4%(P=0.09),差异无统计学意义。总之,当精子DNA碎片率大于25%时,IVF失败的概率增大,而精子形态学超高倍检测结果对预测患者的妊娠结局无明显获益。Gemma López Rafael Lafuente Miguel A Checa Ramón Carreras Mario Brassesco 2013Asian Journal of Andrology2013,15,6:12
18Natural history of liver cirrhosis in south China based on a large cohort study in one center: a follow-up study for up to 5 years in 920 patients显示文摘WANG Shu-bin WANG Jin-hui CHEN Jie Ram Krishna Giri CHEN Min-hu 2012Chinese Medical Journal2012,,12:11
19Diabetes and cancer:Looking at the multiligand/RAGE axis显示文摘The association between diabetes and hyperglycemia and the associated increased risk of several solid and hematologic malignancies has been the subject of investigation for many years.Although the association is not fully understood,current knowledge clearly indicates that diabetes may influence malignant cell transformation by several mechanisms,including hyperinsulinemia,hyperglycemia and chronic inflammation.In this context,the receptor for advanced glycation end-products (RAGE) has emerged as a focal point in its contribution to malignant transformation and tumor growth.We high-light how RAGE,once activated,as it manifests itself in conditions such as diabetes or hyperglycemia,is able to continuously bring about an inflammatory milieu,thus supporting the contribution of chronic inflammation to the development of malignancies.Armando Rojas Ileana González Erik Morales Ramón Pérez-Castro Jacqueline Romero Héctor Figueroa 2011World Journal of Diabetes2011,2,7:11
20UHPLC-MS法鉴定大鼠灌服开心散后血中远志糖酯类化合物及其代谢产物显示文摘本研究利用超高效液相色谱-飞行时间质谱联用技术(UHPLC-TOF/MS),借助液质联用工作站Masslynx V4.1分析软件,结合现有文献及相关数据库,鉴定了开心散60%乙醇提取物(KXS-60%E)中20个远志糖酯类成分;在此基础上,进一步指认并鉴定了灌服KXS-60%E后大鼠血中的14个远志糖酯类化合物及4个来源于远志糖酯类成分的代谢产物。以上研究结果表明,远志糖酯类化合物及其代谢产物是KXS-60%E的主要血中移行成分,原形及代谢产物可能是开心散防治AD的潜在药效物质基础。汪娜 Hassan AHMAD 贾永明 薛迪 Ram CHAULAGAIN 黄树明 刘学伟 2017药学学报2017,52,10:11
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