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World Journal of Clinical Cases 2019年第6期7卷 753-758页

作者： luis Pablo l.pez Rivero Miguel Jaimes Felipe Camargo esther l.pez-bayghen Instituto de Infertilidad y Genética México SC Departamento de Toxicología Centro de Investigación de Estudios

BACKGROUND An isthmocele is a scar defect in the uterine wall due to a cesarean section. Its prevalence is unknown,but it has been associated with secondary ***,we present a case where the patient suffered from an isthmocele that was associated with persistent hydrometra,which developed during in vitro *** SUMMARY The patient underwent hysteroscopic surgery,which successfully resolved the isthmocele as well as the hydrometra. Afterward,two high-quality,euploid embryos,determined by morphological assessment and pre-implantation genetic diagnostic testing,were transferred. This resulted in uterine pregnancy,as determined byserum β-human chorionic gonadotropin levels on day 14(180 m U/ml) and ultrasound-confirmed presence of a gestational sac with a positive embryocardia at week 6. The pregnancy reached 36 wk without any complications,and the product was born in good health. We report a successful isthmocele treatment in a patient with secondary infertility,in which the isthmocele was the cause of persistent *** Hydrometra caused by secondary cesarean is an infertility factor,which can be corrected by hysteroscopy plus ablation of the isthmocele.

关键词： In vitro fertilization Isthmocele Hydrometra Case report

Mid-term survival of the Optimys short stem: A prospective case series of 500 patients

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World Journal of Orthopedics 2024年第3期15卷 257-265页

作者： Bryan Hamans Sheryl de Waard Sjoerd Kaarsemaker esther R C Janssen Inger N Sierevelt Gino M M J Kerkhoffs Daniël Haverkamp Department of Orthopaedic Surgery Xpert ClinicAmsterdam 1101EANetherlands Department of Orthopedic Surgery Amsterdam University Medical CenterAmsterdam 1105 AZNetherlands esther R C Janssen Department of Orthopaedic SurgeryViecuri Medisch CentrumVenlo 5912 BLNetherlands Centre for Orthopaedic Research Spaarne ZiekenhuisHoofddorp 2134 TMNetherlands Department of Orthopaedic Surgery and Sports Medicine Amsterdam UMC-Location AMCAmsterdam 1105 AZNetherlands Department of Orthopedic Surgery Xpert Orthopedic Surgery ClinicAmsterdam 1101 EANetherlands

BACKGROUND In recent years,there has been an increase in the number of total hip arthroplasty procedures in the younger patient *** active group has higher expectations of their prosthesis in comparison to the older population,and there is a greater physical demand for the *** femoral stems were in-troduced to retain proximal bone stock and joint biomechanics and became more common to implant in this specific ***,the long-term survival and functional outcomes of various short stems are still being investigated in different *** To determine the 5-year survival of the Optimys hip *** This was a prospective multicenter cohort study of 500 patients conducted in two hospitals in the *** patients received the Optimys short stem(Mathys ltd,Bettlach,Switzerland).The primary outcome measure was survival of the hip stem,with revision as the *** secondary outcome measurements included patient-reported outcome measures(PROMs).Kaplan-Meier analysis was used to calculate the 5-year survival ***-minus-log transformation was performed to calculate the 95%confidence interval(95%CI).Mixed model analyses were performed to assess the course of the PROMs during the 1st 2 years after *** were modeled separately for the 1st and 2nd years to calculate the yearly change in PROMs during both follow-up periods with accompanying 95%*** The mean age of the total 500 patients was 62.3 years(standard deviation:10.6)and 202 were male(40%).At a median follow-up of 5.5 years(interquartile range:4.5-6.7),7 patients were deceased and 6 revisions were registered,for infection(n=3),subsidence(n=2)and malposition(n=1).This resulted in an overall 5-year survival of 98.8%(95%CI:97.3-99.5).If infection was left out as reason for revision,a stem survival of 99.4%(95%CI:98.1-99.8)was *** questionnaires were completed by 471 patients(94%),317 patients(63%)completed the 1-year follow-up questionna

关键词： Total hip arthroplasty Femoral stem Short stem Optimys Survival 5-year survival Revision PROMs

Surgical and nutritional interventions for endometrial receptivity:A case report and review of literature

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World Journal of Clinical Cases 2022年第33期10卷 12295-12304页

作者： Dinorah Hernández-Melchor Cecilia Palafox-Gómez Ivan Madrazo Ginna Ortiz America Padilla-Viveros esther l.pez-bayghen Science Technology and Society ProgramCentro de Investigación y de Estudios Avanzados del Instituto Politécnico NacionalMéxico City 07360CDMXMéxico Clinical Research Instituto Regenera SCMéxico City 05320CDMXMéxico Departamento de Toxicología Centro de Investigación y de Estudios Avanzados del Instituto Politécnico NacionalMéxico City 07360CDMXMéxico Investigación Clínica Instituto de Infertilidad y Genética México SCINGENESMéxico City 05320CDMXMéxico Departamento de Toxicología Centro de Investigación y de Estudios Avanzados del Instituto Politécnico NacionalMexico City 07360CDMXMéxico

BACKGROUND Polycystic ovary syndrome(PCOS)is an endocrine disease that combines metabolic,reproductive,and psychological *** disorders and impaired endometrial receptivity in PCOS can cause *** resistance(IR)is a pathological state of inadequate response to insulin that affects reproduction in PCOS,as damage caused by IR at the endometrial level becomes an obstacle for embryo *** IR resulted in spontaneous pregnancies in PCOS patients,indicating that metabolic corrections improve endometrial *** stem-cell treatment has also corrected endometrial quality and lead to pregnancies in patients with Asherman’s *** propose a combination of nutritional intervention with the surgical placement of stem cells to improve endometrial quality to achieve pregnancy in a PCOS patient undergoing in vitro fertilization(IVF)*** SUMMARY After two failed IVF cycles,a metabolic intervention,consisting of a ketogenic diet with daily consumption of 50 g of carbohydrates(CH),was indicated until *** Syndrome was assessed using the Harmonizing Definition(3 of 5 pathologies:Central obesity,hypertension,hyperglycemia,hypertriglyceridemia,and dyslipidemia),and the Homeostatic Model Assessment of IR(HOMA-IR)was used to measure the level of *** IR improved,endometrial quality ***,two day 5-thawed embryos(euploid,donated oocyte–partner's sperm)failed to implant,suggesting endometrial quality improvement was ***,transmyometrial implantation of mesenchymal stem cells from the stromal vascular fraction of adipose tissue was performed to enrich the endometrial stem cell *** endometrial mean thickness for embryo transfer(6.9 mm)was achieved three months after stem cell treatment and continuous dietary control of *** euploid-day 5-thawed embryos(donated oocyte–partner's sperm)were transferred,and embryo implantation was confirmed on day 14 byβ-hCG s

关键词： Polycystic ovarian syndrome Insulin resistance Nutritional intervention Endometrial quality Stem cell treatment Case report

Mid-term clinical outcomes of the uncemented Robert Mathys pressfit cup

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World Journal of Clinical Cases 2024年第19期12卷 3684-3691页

作者： Kishan Ritek Ramsodit Inger N Sierevelt esther R C Janssen Sjoerd Kaarsemaker Daniël Haverkamp Department of Orthopedic Surgery Xpert Clinics AmsterdamAmsterdam 1101EANorth-HollandNetherlands Department of Orthopedic Spaarne Gasthuis AcademyHoofddorp 2134 TMNetherlands Department of Orthopaedic Surgery Viecuri Medical CentreVenlo 5912 BLNetherlands Department of Orthopaedic Surgery Viecuri Medisch CentrumVenlo 5912 BLNetherlands

BACKGROUND The use of uncemented cups during total hip arthroplasty(THA)has gained popularity in recent *** Robert Mathys(RM)pressfit cup,an uncemented monoblock implant is expected to preserve bone density due to its composition and external surface,while reducing backside wear with its monoblock *** factors should lead to a high survival rate of the *** To evaluate the mid-term survival and functional outcome of the RM Pressfit cup in a large study *** Between 2011 and 2020,we included 1324 patients receiving a primary THA using the RM pressfit *** clinical follow-up was performed at 2 years postoperatively with the Dutch arthroplasty register used to assess implant status *** for acetabular failure and reason for revision were reported to evaluate implant survival,while the hip disability and osteoarthritis outcome score(HOOS)scores were used to assess functional *** The mean age at surgery was 64.9 *** mean follow-up was 4.6 *** the 1324 THAs performed,13 needed cup revisions within 5 years after index THA:5 due to aseptic loosening,6 due to infection,2 due to dislocation and 2 due to other *** resulted in a 5-year cup survival of 98.8%(95%CI:98.1-99.5).Nine of the cup revisions occurred within the first year after index *** scores increased significantly in all domains during the first year and levelled out during the second *** In the present study,the RM pressfit cup demonstrated excellent clinical outcomes at mid-term follow-up;however,future studies are needed to assess the long-term outcomes of this acetabular implant.

关键词： Total hip arthroplasty Uncemented RM pressfit cup Hip osteoarthritis Cup revision Pressfit Aseptic loosening

Whole-genome amplification/preimplantation genetic testing for propionic acidemia of successful pregnancy in an obligate carrier Mexican couple:A case report

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World Journal of Clinical Cases 2021年第29期9卷 8797-8803页

作者： Adina Neumann Miguel Angel Alcantara-Ortigoza Ariadna González-del Angel Nestor Alejandro Zarate Díaz Javier Sam Santana leonardo M Porchia esther l.pez-bayghen laboratorio de Investigación y Diagnóstico Molecular IngenesMexico City 05320Mexico laboratorio de Biología Molecular Subdirección de Investigación MédicaInstituto Nacional de PediatríaMexico City 04530Mexico DNA-GEN S.C.Centro de Alta Especialidad en Genética Humana Mexico City 14070Mexico Investigación Clínica IngenesPuebla 72820Mexico Departamento de Toxicología Centro de Investigación y de Estudios Avanzados del Instituto Politécnico NacionalMexico City 07360Mexico

BACKGROUND Identifying a potential single monogenetic disorder in healthy couples is costly due to the Assisted Reproduction facilities'current methodology for screening,which focuses on the detecting multiple genetic disorders at ***,we report the successful application of a low-cost and fast preimplantation genetic testing for monogenic/single gene defects(PGT-M)approach for detecting propionic acidemia(PA)in embryos obtained from a confirmed heterozygous propionyl-CoA carboxylase alpha subunit(PCCA)*** SUMMARY A fertile 32-years old Mexican couple with denied consanguinity sought antenatal genetic *** were suspected obligate PA carriers due to a previous deceased PA male newborn with an unknown PCCA/propionyl-CoA carboxylase beta subunit(PCCB)***-Generation Sequencing revealed a heterozygous genotype for a pathogenic PCCA variant(c.2041-1G>T,ClinVar:RCV-000802701.1;dbSNP:rs1367867218)in both *** couple requested in vitro fertilization(IVF)and PGT-M for *** IVF,12 oocytes were collected and fertilized,of which two resulted in high-quality *** biopsies and Whole Genome Amplification by a fragmentation/amplification-based method were performed and revealed that the two embryos were *** polymerase chain reaction and further Sanger sequencing of the exon-intron borders revealed a wild-type PCCA male embryo and a heterozygous c.2041-1G>T female *** embryos were transferred,resulting in a clinical pregnancy and the delivery of a healthy male newborn(38 wk,weight:4080 g,length:49 cm,APGAR 9/9).The absence of PA was confirmed by expanded newborn *** We show that using PGT-M with Whole Genome Amplification templates,coupled with IVF,can reduce the transmission of a pathogenic variant of the PCCA gene.

关键词： Propionic acidemia Autosomal recessive Propionyl-CoA carboxylase alpha subunit(PCCA)gene Preimplantation genetic testing Next-generation sequencing Embryo transfer

Resilience to structural and molecular changes in excitatory synapses in the hippocampus contributes to cognitive function recovery in Tg2576 mice

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Neural Regeneration Research 2024年第9期19卷 2068-2074页

作者： Carolina Aguado Sara Badesso JoséMartínez-Hernández Alejandro Martín-Belmonte Rocío Alfaro-Ruiz Miriam Fernández Ana esther Moreno-Martínez Mar Cuadrado-Tejedor Ana García-Osta Rafael luján Synaptic Structure laboratory Instituto de Investigación en Discapacidades Neurológicas(IDINE)Department of Medical SciencesFacultad de MedicinaUniversidad de Castilla-La ManchaCampus BiosanitarioAlbaceteSpain Gene Therapy for Neurological Disease Program Center for Applied Medical Research(CIMA)University of NavarraInstituto de Investigación Sanitaria de Navarra(IdiSNA)PamplonaSpain Pharmacology Unit Department of Pathology and Experimental TherapeuticsFaculty of Medicine and Health SciencesInstitute of NeurosciencesUniversity of BarcelonaBarcelonaSpain Neuropharmacology and Pain Group Neuroscience ProgramInstitut d’InvestigacióBiomèdica de BellvitgeIDIBELLL’Hospitalet de LlobregatSpain Department of Pathology Anatomy and PhysiologySchool of MedicineUniversity of NavarraPamplonaSpain UniversitéGrenoble Alpes Grenoble Institut des NeurosciencesGrenobleFrance

Plaques of amyloid-β(Aβ)and neurofibrillary tangles are the main pathological characteristics of Alzheimer’s disease(AD).However,some older adult people with AD pathological hallmarks can retain cognitive *** the factors that lead to this cognitive resilience to AD offers promising prospects for identifying new therapeutic *** hypothesis focuses on the contribution of resilience to changes in excitatory synapses at the structural and molecular levels,which may underlie healthy cognitive performance in aged AD *** the Morris Water Maze test,we selected resilient(asymptomatic)and cognitively impaired aged Tg2576 *** the enzyme-linked immunosorbent assay showed similar levels of Aβ42 in both experimental groups,western blot analysis revealed differences in tau pathology in the pre-synaptic supernatant *** further investigate the density of synapses in the hippocampus of 16-18 month-old Tg2576 mice,we employed stereological and electron microscopic *** findings indicated a decrease in the density of excitatory synapses in the stratum radiatum of the hippocampal CA1 in cognitively impaired Tg2576 mice compared with age-matched resilient Tg2576 and non-transgenic ***,through quantitative immunoelectron microscopy in the hippocampus of impaired and resilient Tg2576 transgenic AD mice,we uncovered differences in the subcellular localization of glutamate ***,the density of GluA1,GluA2/3,and mGlu5 in spines and dendritic shafts of CA1 pyramidal cells in impaired Tg2576 mice was significantly reduced compared with age-matched resilient Tg2576 and non-transgenic ***,the density of GluA2/3 in resilient Tg2576 mice was significantly increased in spines but not in dendritic shafts compared with impaired Tg2576 and non-transgenic *** subcellular findings strongly support the hypothesis that dendritic spine plasticity and synaptic machinery in the hippocampus play cr

关键词： aging Alzheimer´s disease cognitive hippocampus immunoelectron microscopy resilience synapse

liver histological changes and lipid peroxidation in the amphibian Ambystoma mexicanum induced by sediment elutriates from the lake Xochimilco

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Journal of Environmental Sciences 2016年第8期28卷 156-164页

作者： Esperanza Ortiz-Ordonez Eugenia l.pez-l.pez Jacinto Elías Sedeno-Díaz esther Uría Ignacio Andrés Morales María Estela Pérez Mineko Shibayama Instituto Politécnico Nacional Depto.de Formación Básica e InterdisciplinariaCICS-USTAv.de los Maestros s/n.Col.Sto Instituto Politécnico Nacional Laboratorio de Evaluación de la Salud de Ecosistemas AcuáticosENCBProl.de Carpio y Plan de Ayala s/n.Col.Sto Instituto Politécnico Nacional Coordinación Politécnica para la SustentabilidadEdificio de la Biblioteca Nacional3er PisoAv.Instituto Politécnico Nacional s/nesq.Wilfrido MassieuCol Instituto Politécnico Nacional Laboratorio de HistologíaENCBProl.de Carpio y Plan de Ayala s/n.Col.Sto Unidad de Servicio Académico Acuario BiologíaFacultad de CienciasUniversidad Autónoma de MéxicoCiudad Universitaria laboratorio de Infectómica Centro de Investigación y de Estudios Avanzados del IPNAv.Instituto Politécnico Nacional

lacustrine sediments accumulate pollutants that input from the lake watershed and can be released to the water column by sediment resuspension; thus, pollutants can change their bioavailability and exert adverse effects to aquatic biota. Shallow-urban lakes are particularly susceptible to receive pollutants from urban discharges and sediment resuspension. lake Xochimilco, in Mexico City, an urban-shallow lake, faces multiple problems： urban sprawl, overexploitation of aquifers, drying of springs, discharge of wastewater from treatment plants, and sediment resuspension. The aquatic biota living in this ecosystem is continuously exposed to the release of pollutants from the sediments. We assessed the risk that pollutants released from sediments from lake Xochimilco, Touristic（TZ） and Agriculture zone（AZ）, can exert on a native amphibian species of the lake（Ambystoma mexicanum） through exposure bioassays to sediment elutriates. We evaluate alterations in the amphibian by three approaches： biochemical（level of lipid peroxidation,lPO）, cellular（ultrastructure） and the liver histology of A. mexicanum and we compare them with a batch control. Additionally, we assessed heavy metals（Pb, Cd and Hg） in *** from TZ showed the highest concentrations of the metals assessed. Organisms exposed to sediment elutriates from either study sites showed higher lPO values than control organisms（p 〈 0.05）. Organisms exposed to elutriates from the TZ showed the most conspicuous damages： hepatic vasodilation of sinusoids, capillaries with erythrocytes,leukocyte infiltration and cytoplasmic vacuolation in hepatocytes. The biological responses assessed reflected the risk that faces A. mexicanum when is exposed for prolonged periods to sediment resuspension in lake Xochimilco.

关键词： Elutriates Amphibian liver Histological alterations Ultrastructure Oxidative stress Metals Urban lake

Interindividual Age-Independent Differences in Human CX43 Impact Ventricular Arrhythmic Risk

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Research 2024年第3期6卷 417-432页

作者： laura García-Mendívil María Pérez-Zabalza Antoni Oliver-Gelabert JoséMaría Vallejo-Gil Javier Fañanás-Mastral Manuel Vázquez-Sancho Javier AndréBellido-Morales Alexánder Sebastián Vaca-Núñez Carlos Ballester-Cuenca Emiliano Diez laura Ordovás esther Pueyo Biomedical Signal Interpretation and Computational Simulation group(BSICoS) Aragón Institute of Engineering ResearchUniversity of ZaragozaZaragoza 50018Spain BSICoS Instituto de Investigación Sanitaria Aragón(IISA)Zaragoza 50018Spain Centro Universitario de la Defensa(CUD) Zaragoza 50090Spain. Department of Cardiovascular Surgery University Hospital Miguel ServetZaragoza 50009Spain. Institute of Experimental Medicine and Biology of Cuyo(IMBECU) CONICETMendoza 5500Argentina. Fundación Agencia Aragonesa para la Investigación y el Desarrollo(ARAID) Zaragoza 50018Spain. Biomedical Research Networking Center in Bioengineering Biomaterials and Nanomedicine(CIBER-BBN)Zaragoza 50018Spain.

Connexin 43 (CX43) is one of the major components of gap junctions, the structures responsible for the intercellular communication and transmission of the electrical impulse in the left ventricle. There is limited information on the histological changes of CX43 with age and their effect on electrophysiology, especially in humans. Here, we analyzed left ventricular biopsies from living donors starting at midlife to characterize age-related CX43 remodeling. We assessed its quantity, degree of lateralization, and spatial heterogeneity together with fibrotic deposition. We observed no significant age-related remodeling of CX43. Only spatial heterogeneity increased slightly with age, and this increase was better explained by biological age than by chronological age. Importantly, we found that CX43 features varied considerably among individuals in our population with no relevant relationship to age or fibrosis content, in contrast to animal species. We used our experimental results to feed computational models of human ventricular electrophysiology and to assess the effects of interindividual differences in specific features of CX43 and fibrosis on conduction velocity, action potential duration, and arrhythmogenicity. We found that larger amounts of fibrosis were associated with the highest arrhythmic risk, with this risk being increased when fibrosis deposition was combined with a reduction in CX43 amount and/or with an increase in CX43 spatial heterogeneity. These mechanisms underlying high arrhythmic risk in some individuals were not associated with age in our study population. In conclusion, our data rule out CX43 remodeling as an age-related arrhythmic substrate in the population beyond midlife, but highlight its potential as a proarrhythmic factor at the individual level, especially when combined with increased fibrosis.

关键词： CX43 rhythm Independent

Stable NiO-CeO_(2) nanoparticles with improved carbon resistance for methane dry reforming

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Journal of Rare Earths 2022年第1期40卷 57-62页

作者： Andrea Cárdenas-Arenas esther Bailón-García Dolores lozano-Castelló Patrick Da Costa Agustín Bueno-l.pez Department of Inorganic Chemistry University of AlicanteCarretera de San Vicente s/nE03080AlicanteSpain Sorbonne Universite Institut Jean Le Rond d'AlembertCNRS UMR 71902 place de la gare de ceinture78210Saint Cyr L'EcoleFrance

High surface area mixed oxide 8.7%NiO-CeO_(2) nanoparticles(122 m2/g;6-7 nm)were prepared using a reversed microemulsion method,and were tested for dry methane reforming(DRM).The catalytic activity of these nanoparticles remains stable under the severe conditions of DRM(700℃),and they show better carbon resistance than conventional NiO-CeO_(2) catalysts prepared without control of the *** activity and selectivity of nanoparticles and reference catalyst are similar,but nanoparticles reduce the accumulation of carbon by 63%during the DRM tests,which is a key feature for this *** and H_(2)-TPR suggest that the improved carbon resistance of the nanoparticles is due to the better interaction and cooperation between NiO and CeO_(2) mixed *** nanoparticles,the participation of cerium cations in the redox processes taking place during DRM stabilizes cationic species of *** the contrary,the catalyst prepared without control of the size suffers segregation of Ni during DRM reaction,and segregated Ni explains the higher catalytic formation of carbon.

关键词： Methane dry reforming Nickel Ceria Nanoparticle Rare earths

Physiopathology of ischemic stroke and its modulation using memantine:evidence from preclinical stroke

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Neural Regeneration Research 2021年第3期16卷 433-439页

作者： Hilda Martínez-Coria Isabel Arrieta-Cruz María-esther Cruz Héctor E.l.pez-Valdés División de Investigación Facultad de MedicinaUniversidad Nacional Autónoma de México(UNAM)Ciudad de MéxicoMéxico laboratorio Experimental de Enfermedades Neurodegenerativas Facultad de MedicinaUNAM/Instituto Nacional de Neurología y NeurocirugíaCiudad de MéxicoMéxico Departamento de Investigación Básica Instituto Nacional de GeriatríaCiudad de MéxicoMéxico Unidad de Investigación en Biología de la Reproducción Laboratorio de NeuroendocrinologíaFacultad de Estudios Superiores ZaragozaUNAMCiudad de MéxicoMéxico Unidad Periférica de Neurociencia Facultad de MedicinaUNAM/Instituto Nacional de Neurología y NeurocirugíaCiudad de MéxicoMéxico

Ischemic stroke is the most common type of cerebrovascular disease and is caused by an interruption of blood flow in the *** this disease,two different damage areas are identifying:the lesion core,in which cells quickly die;and the penumbra(surrounding the lesion core),in which cells are functionally weakened but may recover and restore their *** currently approved treatments for ischemic stroke are the recombinant tissue plasminogen activator and endovascular thrombectomy,but they have a short therapeutic window(4.5 and 6 hours after stroke onset,respectively)and a low percentage of stroke patients actually receive these *** is an approved drug for the treatment of Alzheimer's *** is a noncompetitive,low affinity and use-dependent antagonist of N-methyl-D-aspartate glutamate *** has several advantages over developing a new drug to treat focal ischemic stroke,but the most important is that it has sufficient safe probes in preclinical models and humans,and if the preclinical studies provide more evidence about pharmacological actions in tissue protection and repair,this could help to increase the number of clinical *** present review summarizes the physiopathology of isquemic stroke and the pharmacological actions in neuroprotection and neuroplasticity of memantine in the post stroke stage of preclinical stroke models,to illustrate their potential to improve functional recovery in human patients.

关键词： focal ischemic stroke memantine neuroplasticity neuroprotection stroke therapy