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| 1 | Current 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 | 2020 | World Journal of Clinical Oncology2020，11，1： | 6 |
| 2 | Exploratory study on microRNA profiles from plasma-derived extracellular vesicles in Alzheimer’s disease and dementia with Lewy bodies显示文摘Background:Because of the increasing life expectancy in our society,aging-related neurodegenerative disorders are one of the main issues in global health.Most of these diseases are characterized by the deposition of misfolded proteins and a progressive cognitive decline.Among these diseases,Alzheimer’s disease(AD)and dementia with Lewy bodies(DLB)are the most common types of degenerative dementia.Although both show specific features,an important neuropathological and clinical overlap between them hampers their correct diagnosis.In this work,we identified molecular biomarkers aiming to improve the misdiagnosis between both diseases.Methods:Plasma extracellular vesicles(EVs)-from DLB,AD and healthy controls-were isolated using size-exclusion chromatography(SEC)and characterized by flow cytometry,Nanoparticle Tracking Analysis(NTA)and cryo-electron microscopy.Next Generation Sequencing(NGS)and related bibliographic search was performed and a selected group of EV-associated microRNAs(miRNAs)was analysed by qPCR.Results:Results uncovered two miRNAs(hsa-miR-451a and hsa-miR-21-5p)significantly down-regulated in AD samples respect to DLB patients,and a set of four miRNAs(hsa-miR-23a-3p,hsa-miR-126-3p,hsa-let-7i-5p,and hsamiR-151a-3p)significantly decreased in AD respect to controls.The two miRNAs showing decreased expression in AD in comparison to DLB provided area under the curve(AUC)values of 0.9 in ROC curve analysis,thus suggesting their possible use as biomarkers to discriminate between both diseases.Target gene analysis of these miRNAs using prediction online tools showed accumulation of phosphorylation enzymes,presence of proteasome-related proteins and genes involved in cell death among others.Conclusion:Our data suggest that plasma-EV associated miRNAs may reflect a differential profile for a given dementia-related disorder which,once validated in larger cohorts of patients,could help to improve the differential diagnosis of DLB versus AD. | Ana Gámez-Valero Jaume Campdelacreu Dolores Vilas Lourdes Ispierto Ramón Reñé RamiroÁlvarez MPilar Armengol Francesc E.Borràs Katrin Beyer | 2019 | Translational Neurodegeneration2019，8，1： | 4 |
| 3 | Novel nutraceutic therapies for the treatment of metabolic syndrome显示文摘Nutraceutic therapies such as berberine, bitter melon,Gymnema sylvestre, Irvingia gabonensis, resveratrol and ursolic acid have been shown to help control metabolic syndrome(MetS). The effect of berberine on glucose and lipid metabolism, hypertension, obesity and MetS has been evaluated in animal models and humans. Most clinical trials involving bitter melon have been conducted to evaluate its effect on glucose metabolism; nevertheless, some studies have reported favorable effects on lipids and blood pressure although there is little information about its effect on body weight. Gymnema sylvestre helps to decrease body weight and blood sugar levels; however, there is limited information on dyslipidemia and hypertension. Clinical trials of Irvingia gabonensis have shown important effects decreasing glucose and cholesterol concentrations as well decreasing body weight. Resveratrol acts through different mechanisms to decrease blood pressure, lipids, glucose and weight, showing its effects on the population with Met S. Finally, there is evidence of positive effects with ursolic acid in in vitro and in vivo studies on glucose and lipid metabolism and on body weight and visceral fat. Therefore, a review of the beneficial effects and limitations of the above-mentioned nutraceutic therapies is presented. | Esperanza Martínez-Abundis Miriam Mendez-del Villar Karina G Pérez-Rubio Laura Y Zuniga Marisol Cortez-Navarrete Alejandra Ramírez-Rodriguez Manuel González-Ortiz | 2016 | World Journal of Diabetes2016，7，7： | 3 |
| 4 | Preclinical evaluation of azathioprine plus buthionine sulfoximine in the treatment of human hepatocarcinoma and colon carcinoma显示文摘AIM: To evaluate the efficacy and the safety of azathioprine (AZA) and buthionine sulfoximine (BSO) bylocalized application into HepG2 tumor in vivo.METHODS: Different hepatoma and colon carcinoma cell lines (HepG2, HuH7, Chang liver, LoVo, RKO, SW-48, SW-480) were grown in minimal essencial medium supplemented with 10% fetal bovine serum and 1% antibiotic/antimycotic solution and maintained in a humidified 37 ℃ incubator with 5% CO2. These cells were pretreated with BSO for 24 h and then with AZA for different times. We examined the effects of this combination on some proteins and on cellular death. We also studied the eff icacy and the safety of AZA (6 mg/kg per day) and BSO (90 mg/kg per day) in HepG2 tumor growth in vivo using athymic mice. We measured safety by serological markers such as aminotransferases and creatine kinase.RESULTS: The in vitro studies revealed a new mechanism of action for the AZA plus BSO combination in the cancer cells compared with other thiopurines (6-mercaptopurine, 6-methylmercaptopurine, 6-thioguanine and 6-methylthioguanine) in combination with BSO. The cytotoxic effect of AZA plus BSO in HepG2 cells resulted from necroptosis induction in a mitochondrial-dependent manner. From kinetic studies we suggest that glutathione (GSH) depletion stimulates c-Jun amino-terminal kinase and Bax translocation in HepG2 cells with subsequent deregulation of mitochondria (cytochrome c release, loss of membrane potential), and proteolysis activation leading to loss of membrane integrity, release of lactate dehydrogenase and DNA degradation. Some of this biochemical and cellular changes could be reversed by N-acetylcysteine (a GSH replenisher). In vivo studies showed that HepG2 tumor growth was inhibited when AZA was combined with BSO.CONCLUSION: Our studies suggest that a combination of AZA plus BSO could be useful for localizedtreatment of hepatocellular carcinoma as in the currently used transarterial chemoembolization method. | Borja Hernández-Breijo Jorge Monserrat Sara Ramírez-Rubio Eva P Cuevas Diana Vara Inés Díaz-Laviada M Dolores Fernández-Moreno Irene D Román Javier P Gisbert Luis G Guijarro | 2011 | World Journal of Gastroenterology2011，17，34： | 2 |
| 5 | Deposition of litter and nutrients in leaves and twigs in different plant communities of northeastern Mexico显示文摘Studies on litterfall and decomposition provide estimations of decomposition rates of different ecosystems.This is key information to understanding ecosystem dynamics and changes in a scenario of global warming.The objective of this research was to assess litterfall production,the potential deposition of macro and micronutrients through leaf and twig fall as well as macronutrient—use efficiency in three forest ecosystems at different altitudes: a pine forest mixed with deciduous species(S1); a Quercus spp.forest(S2); and,a Tamaulipan thornscrub forest(S3).Total annual litterfall deposition was 594,742 and 533 g m^(-2) for S1,S2 and S3.Leaf litter was higher (68%) than twigs(18%),reproductive structures(8%) or miscellaneous material(6%).Micronutrient leaf deposition was higher for Fe followed by Mn,Zn and Cu.Macronutrient leaf deposition was higher for Ca followed by K,Mg and P.Even though P deposition in leaves and twigs was lower than other macronutrients,its nutrient use efficiency was higher than Ca,Mg or K.Altitude and species composition determine litter and nutrient deposition,with higher values at mid-altitudes(550 m).Altitude is an important factor to consider when analyzing litter production as well as nutrient deposition as shown in this study.Litter production and nutrient deposition are expected to change in a scenario of global warming. | Humberto González-Rodríguez Roque Gonzalo Ramírez-Lozano Israel Cantú-Silva Marco Vinicio Gómez-Meza Eduardo Estrada-Castillón José Ramón Arévalo | 2018 | Journal of Forestry Research2018，29，5： | 2 |
| 6 | Norfloxacin vs Ceftriaxone in the Prophylaxis of Infections in Patients With Advanced Cirrhosis and Hemorrhage显示文摘 | Javier Fernández Luis Ruiz del Arbol Cristina Gómez Rosa Durandez Regina Serradilla Carlos Guarner Ramón Planas Vicente Arroyo Miguel Navasa | 2006 | Gastroenterology2006，，4： | 2 |
| 7 | Microstructure and tensile properties of Inconel 718 pulsed Nd-YAG laser welds 显示文摘 | JANAKI RAM G D VENUGOPAL A PRASAD K | 2005 | Journal of Material Processing Technology2005，167，： | 1 |
| 8 | Synthesis and Characterization of Some Transition Metal Complexes of N-( 2- Hydroxyl -Naphthylidene) Amino Acids显示文摘 | Praveen K S Ram N H Bhowon M G | 1996 | Inorg Met Org Chem1996，26，7： | 1 |
| 9 | Salinity andsodicity effects on respiration and microbial biomass of soil 显示文摘 | VANESSA N L W RAM C D RICHARD S B G | 2008 | Biology and Fertility of Soils2008，44，： | 1 |
| 10 | Microstructural evolution during friction surfacing of tool steelH13显示文摘 | Khalid Rafi H Janaki Ram G D Phanikumar G | 2011 | Materials & Design2011，32，： | 1 |
| 11 | Effect of highpressure treatments on mechanical and functional properties of restructured products from arrowtooth flounder(Atheresthes stomias)显示文摘 | Uresti M R Velazquez G Ramírez J | 2004 | Journal of the Science of Food Agriculture2004，84，： | 1 |
| 12 | Rhabdomyolysis induced acute renal failure secondary to statins 显示文摘 | RAM R SWARNALATHA G RAMESH V | 2013 | Indian J Nephrol2013，23，3： | 1 |
| 13 | Use of ultrasonic consolidation forfabrication of multi-material strurtures显示文摘 | JANAKI RAM G D ROBINSON C YANG Y | 2007 | RapidPrototyping Journal2007，13，： | 1 |
| 14 | Discoidin domain receptor-la (DDRla)promotes glioma cell invasion and adhesion in association with matrix metalloproteinase-2 显示文摘 | Ram R Lorente G Nikolich K | 2006 | J Neurooncol2006，76，： | 1 |
| 15 | Discoidin domain receptor-la(DDRla) promotes glioma cell invasion and adhesion in association withmatrix metalloproteinase-2 显示文摘 | RAM R LORENTE G NIKOLICH K | 2006 | Journal of Neu- ro-Oncology2006，68，22： | 1 |
| 16 | Algorithms for delay-constrained low-cost multicast tree construction显示文摘 | Sriram R Manimaran G Siva Ram Murthy C | 1998 | Computer Communications1998，21，18： | 1 |
| 17 | Expression profiling of various genes during the fruit development and ripening of mango显示文摘 | Sagar S P Ram S K Ashok P G | 2010 | Plant Physiol Biochem2010，48，6： | 1 |
| 18 | A fault - tolerant dynamic scheduling algorithm for multiprocessor real -time and its Analysis显示文摘 | Manimaran G Siva C Ram Murthy | 1998 | 1EEE Transactions on Parallel and Distributed Systems1998，9，11： | 1 |
| 19 | Native colonizing species and degraded land restoration in La Gran Sabana显示文摘 | Rosales J Cuenca G Ramírez N | 1997 | Restoration Ecology1997，5，： | 1 |
| 20 | Corporate headquarters re-location:Evidence from the capital Markets显示文摘 | ALLI K L RAMíREZ G G YUNG K | 1991 | Areuea Journal1991，19，4： | 1 |
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