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    题名 作者 年代 出处 被引量
1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
2Current concepts in ameloblastoma-targeted therapies in B-raf proto-oncogene serine/threonine kinase V600E mutation: Systematic review显示文摘BACKGROUND Ameloblastomas are common benign epithelial odontogenic neoplasms that present an aggressive and unpredictable behavior that may modify treatment strategies.Different signaling pathways that participate in the progression of these tumors have been identified.B-raf proto-oncogene serine/threonine kinase(BRAF)is a protein involved in the behavior of ameloblastomas,and it is related to many cell mechanisms.BRAF gene mutations have been identified in ameloblastomas,of which the BRAF V600E(valine substituted by glutamic acid at amino acid 600)mutation has been the most common and can be present concomitantly with other mutations that may be involved in its behavior.Targeted therapies have been used as an alternative in the case of resistance or contraindications to conventional treatments.AIM To document the presence of BRAF V600E and additional mutations,their behavior,and targeted therapies in these tumors.METHODS An electronic literature search was conducted according to PRISMA guidelines in PubMed/MEDLINE,Cochrane,EMBASE,and SpringerLink using the terms“ameloblastomas”,“BRAF V600E”,“additional mutations”,and“targeted therapies”.Ameloblastomas were classified according to WHO guidelines.Inclusion criteria were articles in English,published not more than 10 years ago,and studies with laboratory works related to BRAF V600E.Articles were evaluated by two independent reviewers and retrieved for full-text evaluation.The EBLIP Critical Appraisal Checklist was used to evaluate the quality of the eligible studies.Descriptive statistical analysis was performed.RESULTS Two independent reviewers,with a substantial concordance indicated by a kappa coefficient of k=0.76,evaluated a total of 19 articles that were included in this study.The analysis registered 521 conventional ameloblastomas(AM),81 unicystic ameloblastomas(UA),13 ameloblastic carcinomas(AC),three metastatic ameloblastomas(MA),and six peripheral ameloblastomas(PA),of which the histopathological type,anatomic location,laboratory tests,expression of BRAF mutation,and additional mutations were registered.The BRAF V600E mutation was found in 297 AM(57%),63 UA(77.7%),3 AC(23%),1 MA(50%),and 5 PA(83.3%).Follicular type predominated with a total of 116 cases(40%),followed by plexiform type with 63 cases(22.1%).Furthermore,both types presented additional mutations,in which alterations in JAK3 P132T,SMARCB1,PIK3CA,CTNNB1,SMO,and BRAF G606E genes were found.Four case reports were found with targeted therapy to BRAF V600E.CONCLUSION The identification of BRAF V600E and additional mutations as an aid in targeted therapies has been a breakthrough in alternative treatments of ameloblastomas where surgical treatments are contraindicated.Rogelio González-González Sandra López-Verdín Jesús Lavalle-Carrasco Nelly Molina-Frechero Mario Isiordia-Espinoza Ramón G Carreón-Burciaga Ronell Bologna-Molina 2020World Journal of Clinical Oncology2020,11,1:6
3Timely reperfusion for ST-segment elevation myocardial infarction:Effect of direct transfer to primary angioplasty on time delays and clinical outcomes显示文摘Primary percutaneous coronary intervention(PPCI) is the preferred reperfusion therapy for patients presenting with ST-segment elevation myocardial infarction(STEMI) when it can be performed expeditiously and by experienced operators. In spite of excellent clinical results this technique is associated with longer delays than thrombolysis and this fact may nullify the benefit of selecting this therapeutic option. Several strategies have been proposed to decrease the temporal delays to deliver PPCI. Among them,prehospital diagnosis and direct transfer to the cath lab,by-passing the emergency department of hospitals,has emerged as anattractive way of diminishing delays. The purpose of this review is to address the effect of direct transfer on time delays and clinical events of patients with STEMI treated by PPCI.Rodrigo Estévez-Loureiro ángela López-Sainz Armo Pérez de Prado Carlos Cuellas Ramón Calvio Santos Norberto Alonso-Orcajo Jorge Salgado Fernández Jose Manuel Vázquez-Rodríguez Maria López-Benito Felipe Fernández-Vázquez 2014World Journal of Cardiology2014,6,6:6
4Diagnosis and Epidemiology of H elicobacter pylori Infection显示文摘Xavier Calvet María‐José Ramírez Lázaro Philippe Lehours Francis Mégraud 2013Helicobacter2013,,:5
5Cementomimetics——constructing a cementum-like biomineralized microlayer via amelogenin-derived peptides显示文摘Cementum is the outer-,mineralized-tissue covering the tooth root and an essential part of the system of periodontal tissue that anchors the tooth to the bone. Periodontal disease results from the destructive behavior of the host elicited by an infectious biofilm adhering to the tooth root and left untreated,may lead to tooth loss. We describe a novel protocol for identifying peptide sequences from native proteins with the potential to repair damaged dental tissues by controlling hydroxyapatite biomineralization. Using amelogenin as a case study and a bioinformatics scoring matrix,we identified regions within amelogenin that are shared with a set of hydroxyapatite-binding peptides (HABPs) previously selected by phage display. One 22-amino acid long peptide regions referred to as amelogenin-derived peptide 5 (ADP5) was shown to facilitate cell-free formation of a cementum-like hydroxyapatite mineral layer on demineralized human root dentin that,in turn,supported attachment of periodontal ligament cells in vitro. Our findings have several implications in peptide-assisted mineral formation that mimic biomineralization. By further elaborating the mechanism for protein control over the biomineral formed,we afford new insights into the evolution of protein-mineral interactions. By exploiting small peptide domains of native proteins,our understanding of structure-function relationships of biomineralizing proteins can be extended and these peptides can be utilized to engineer mineral formation. Finally,the cementomimetic layer formed by ADP5 has the potential clinical application to repair diseased root surfaces so as to promote the regeneration of periodontal tissues and thereby reduce the morbidity associated with tooth loss.Mustafa Gungormus Ersin E Oren Jeremy A Horst Hanson Fong Marketa Hnilova Martha J Somerman Malcolm L Snead Ram Samudrala Candan Tamerler Mehmet Sarikaya 2012International Journal of Oral Science2012,4,2:5
6Effectiveness of an intervention for reducing social stigma towards mental illness in adolescents显示文摘AIM: To evaluate the effectiveness of an intervention for reducing social stigma towards mental illness in adolescents. The effect of gender and knowledge of someone with mental illness was measured. METHODS: Two hundred and eighty secondary school students were evaluated using the Community Attitudes towards Mental Illness(CAMI) questionnaire. The schools were randomized and some received the intervention and others acted as the control group. The programme consisted of providing information via a documentary film and of contact with healthcare staff in order to reduce the social stigma within the school environment. RESULTS: The intervention was effective in reducing the CAMI authoritarianism and social restrictiveness subscales. The intervention showed significant changes in girls in terms of authoritarianism and social restrictiveness, while boys only showed significant changes in authoritarianism. Following the intervention, a significant reduction was found in authoritarianism and social restrictiveness in those who knew someone with mental illness, and only in authoritarianism in those who did not know anyone with mental illness. CONCLUSION: The intervention was effective to reduce social stigma towards people with mental illness, especially in the area of authoritarianism. Some differences were found depending on gender and whether or not the subjects knew someone with mental illness.Regina Vila-Badia Francisco Martínez-Zambrano Otilia Arenas Emma Casas-Anguera Esther García-Morales Raúl Villellas José Ramón Martín María Belén Pérez-Franco Tamara Valduciel Diana Casellas Mar García-Franco Jose Miguel Joaquim Balsera Gemma Pascual Eugènia Julia Susana Ochoa 2016World Journal of Psychiatry2016,6,2:4
7Cytotoxic effect of Spirulina platensis extracts on human acute leukemia Kasumi-1 and chronic myelogenous leukemia K-562 cell lines显示文摘Objective: To evaluate the cytotoxic effects of Spirulina platensis extracts on acute leukemia Kasumi-1 and chronic leukemia K-562 cancer cell lines.Methods: Various concentrations of Spirulina platensis extracts(0.25–50.00 mg/m L)obtained with different solvents were used to treat cell lines for 72 h. For cytotoxic effect studies, cell viability test with trypan blue solution, MTT assay and microscopic cytomorphological assessment were done.Results: Spirulina extract obtained with 70% ethanol showed significant cytotoxicity in K562 and Kasumi-1 cell lines. With trypan blue solution, IC_(50) values were found to be4.64 mg/m L for K-562 and 3.68 mg/m L for Kusumi-1 cell lines. Spirulina aqueous extract also showed cytotoxicity with trypan blue method, at a slightly higher dose; where IC_(50) values were 12.68 mg/m L for K-562 and 2.13 mg/m L for Kusumi-1 cell lines. The IC_(50) values were found 0.40 mg/m L for K-562 and 0.31 mg/m L for Kusumi-1 cell lines for the 70% ethanol extract according to the MTT assay. Spirulina extract obtained with water also showed cytotoxicity but the dose was a little higher where IC_(50) values were15.77 mg/m L for K-562 and 9.44 mg/m L for Kusumi-1 cell lines. The effect of cytotoxicity with ethanol extract is quite comparable with that observed for cyclophosphamide, which is a chemical used as anticancer agent.Conclusions: The cytotoxicity exhibited by Spirulina extract to cancer cell lines might be due to the presence of phytopigments(carotenoids, chlorophyll, phycocyanin) as well as polysaccharides that were reported previously as constituents of the extract. So crude extracts of Spirulina can be used as a source to develop anticancer drugs.Flor Yohana Flores Hernandez Sanghamitra Khandual Inocencia Guadalupe Ramírez López 2017Asian Pacific Journal of Tropical Biomedicine2017,7,1:4
8Increase of Th17 cells in peripheral blood of patients with chronic obstructive pulmonary disease显示文摘María Inés Vargas-Rojas Alejandra Ramírez-Venegas Leonardo Limón-Camacho Leticia Ochoa Rafael Hernández-Zenteno Raúl H. Sansores 2011Respiratory Medicine2011,,11:2
9Cataract surgery with toric intraocular lens implantation in patients with high corneal astigmatism显示文摘Nienke Visser Ramón Ruíz-Mesa Francisco Pastor No?l J.C. Bauer Rudy M.M.A. Nuijts Robert Montés-Micó 2011Journal of Cataract & Refractive Surgery2011,,8:2
10Assessing the spatiotemporal distributions of evapotranspiration in the Three Gorges Reservoir Region of China using remote sensing data显示文摘Evapotranspiration(ET) is a critical component of the global hydrological cycle, and it has a large impact on water resource management as it affects the availability of freshwater resources. It is important to understand the hydrological cycle for the water resources planning and management. This study used Moderate Resolution Imaging Spectroradiometer(MODIS) satellite derived ET, and potential evapotranspiration(PET) and Tropical Rainfall Measuring Mission(TRMM) satellite derived precipitation datasets to assess the spatial and temporal distributions of ET, PET, and precipitation during the study period at Three Gorges Reservoir(TGR) region. Based on the topographic variations and land-use/land-cover distributions, the study region which includes five counties of Hubei Province and nineteen counties of Chongqing Municipality was divided into four study zones. The ET and precipitation data were evaluated using in situ observations. The ET, PET, and precipitation data were compared to analyze the spatial and long-term(2001-2016) temporal distributions of average annual ET, PET, and precipitation, and to understand the relationships between them in the study region. The results showed that each selected zone had highest ET at the counties with the Yangtze River passing through whereas lowest at the counties which were located away from the river. Results also showed increasing trends in ET and PET from south-west to north-east in the study region. Analysis showed TGR had a significant impact on spatial and temporal distributions of ET and PET in the study region. Therefore, this study helps to understand the impact of TGR on spatial and temporal distributions of ET and PET during and after the construction.MA Ze-zhong RAY Ram L HE Yi-ping 2018Journal of Mountain Science2018,15,12:2
11外科减肥手术后高血压缓解和复发的预测因素显示文摘目前,只有很少量研究涉及外科减肥手术后高血压得到缓解和复发的影响因素,没有可用于预测高血压复发相关因素的信息。该研究的目的是评估在外科减肥手术后第1年和第3年里高血压的缓解情况和复发率,并寻找可能的预测因素。Benaiges D Sagué M Flores-Le Roux JA Pedro-Botet J Ramón JM Villatoro M Chillarón JJ Pera M Más A Grande L Goday A 陈云 2016中华高血压杂志2016,24,9:2
12Computerized physician order entry‐based system to prevent HBV reactivation in patients treated with biologic agents: The PRESCRIB project显示文摘Blanca Sampedro Cándido Hernández‐López José Ramón Ferrandiz Aitziber Illaro Emilio Fábrega Antonio Cuadrado Paula Iruzubieta Susana Menéndez Joaquín Cabezas Javier Crespo 2014Hepatology2014,,1:2
13sTWEAK is a marker of early haematoma growth and leukoaraiosis in intracerebral haemorrhage显示文摘Objective To study the association between early growth of haematoma with biomarkers of endothelial dysfunction such as leukoaraiosis(LA)and the soluble tumour necrosis factor-like weak inducer of apoptosis(sTWEAK)in patients with intracerebral haemorrhage(ICH).Methods This is a retrospective observational study of patients with nontraumatic ICH.Clinical and biochemical parameters were analysed.sTWEAK levels were measured by ELISA.LA was analysed in the hemisphere without haemorrhage to avoid interference with the acute injury.The main endpoint was the haematoma growth evaluated by the difference in volume between the second and the initial neuroimage.Poor functional outcome,defined as a modified Rankin Scale>2 at 3 months,was considered as secondary endpoint.Receiver operating characteristic curve analysis was performed to stablish the best cut-off for sTWEAK levels associated with haematoma growth.Results We included 653 patients with ICH in our analysis(71.1±11.9 years,44%women).Haematoma growth was observed in 188 patients(28.8%).sTWEAK levels≥5600 pg/mL predicted ICH growth with a sensitivity of 84%and a specificity of 87%.sTWEAK levels≥5600 pg/mL and the presence of LA were associated with haematoma growth(OR:42.46;(CI 95%22.67 to 79.52)and OR:2.73(CI 95%1.39 to 5.34),respectively).Also,the presence of LA(OR:4.31(CI 95%2.89 to 6.42))and the interaction between ICH growth and sTWEAK(OR:2.23(CI 95%1.40 to 3.55))were associated with poor functional outcome at 3 months.Conclusion sTWEAKs,together with the presence and grade of LA,are biomarkers able to predict ICH growth and poor functional outcome in patients with ICH.Andrés da Silva-Candal Iria López-Dequidt Manuel Rodriguez-Yañez PauloÁvila-Gómez JoséManuel Pumar JoséCastillo Tomás Sobrino Francisco Campos Ramón Iglesias-Rey Pablo Hervella 2021Stroke & Vascular Neurology2021,6,4:2
14Indirect enzyme-linked immunosorbent assay for the mycotoxin zearalenone显示文摘Liu M T Ram B P Hart L P and Pestka J J 1985Appl Environ Microbiol1985,50,2:1
15Salinity andsodicity effects on respiration and microbial biomass of soil 显示文摘VANESSA N L W RAM C D RICHARD S B G 2008Biology and Fertility of Soils2008,44,:1
16Surface water of a perennial river exhibits multi-antimicrobial resistant shiga toxin and enterotoxin producing Escherichia coli显示文摘Ram S Vajpayee P Singh R L 2009Ecotoxicology and Environmental Safety2009,72,2:1
17Embryo cul- ture of early ripening seeded grape ( Vitis vinifera ) geno types显示文摘Ramming D W Emershad R L Spiegel Roy P 1990HortScience1990,25,3:1
18Transient elastography to rule out esophageal varices and portal hypertensive gastropathy in HIV-infected individuals with liver cirrhosis显示文摘Maria L. Montes Ramirez Jose F. Pascual-Pareja Matilde Sánchez-Conde Jose I. Bernardino De la Serna Francisco X. Zamora Vargas Pilar Miralles Juan M. Castro Margarita Ramírez Isabel Gutierrez Juan Gonzalez-García Juan Berenguer Jose R. Arribas López 2012AIDS2012,,14:1
19Corrective action planning using RBF neural network 显示文摘RAM D SRIVASTAVA L PANDIT M 2007Applied Soft Computing2007,,7:1
20Effect of boron addition on the activity and selectivity of hydrotreating CoMo/Al2O3 catalysts显示文摘RAM REZ J CASTILLO P CEDE O L 1995Appl Catal: A1995,132,2:1
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