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Liquid biopsy for gastric cancer:Techniques,applications,and future directions

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World Journal of Gastroenterology 2024年第12期30卷 1680-1705页

作者： Cristina Díaz del Arco M Jesús Fernández Aceñero Luis Ortega medina Department of surgical Pathology Health Research Institute of the Hospital Clínico San CarlosHospital Clínico San CarlosMadrid 28040Spain Department of Legal Medicine Psychiatry and PathologyUniversidad Complutense de MadridMadrid 28040Spain

After the study of circulating tumor cells in blood through liquid biopsy(LB),this technique has evolved to encompass the analysis of multiple materials originating from the tumor,such as nucleic acids,extracellular vesicles,tumor-educated platelets,and other ***,research has extended to include the examination of samples other than blood or plasma,such as saliva,gastric juice,urine,or *** techniques are diverse,intricate,and *** must be highly sensitive,and pre-analytical,patient,and tumor-related factors significantly influence the detection threshold,diagnostic method selection,and potential ***,the implementation of LB in clinical practice still faces several *** potential applications of LB range from early cancer detection to guiding targeted therapy or immunotherapy in both early and advanced cancer cases,monitoring treatment response,early identification of relapses,or assessing patient *** the other hand,gastric cancer(GC)is a disease often diagnosed at advanced *** recent advances in molecular understanding,the currently available treatment options have not substantially improved the prognosis for many of these *** application of LB in GC could be highly valuable as a non-invasive method for early diagnosis and for enhancing the management and outcomes of these *** this comprehensive review,from a pathologist’s perspective,we provide an overview of the main options available in LB,delve into the fundamental principles of the most studied techniques,explore the potential utility of LB application in the context of GC,and address the obstacles that need to be overcome in the future to make this innovative technique a game-changer in cancer diagnosis and treatment within clinical practice.

关键词： Liquid biopsy Gastric cancer Circulating tumor cells Cell-free DNA Circulating tumor DNA Molecular

Towards an integrated risk analysis security framework according to a systematic analysis of existing proposals

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Frontiers of Computer science 2024年第3期18卷 199-216页

作者： Antonio sANTOs-OLMO Luis Enrique sÁNCHEZ David G.ROsADO Manuel A.sERRANO Carlos BLANCO Haralambos MOURATIDIs Eduardo FERNÁNDEZ-medina GsyA Research Group University of Castilla-La ManchaCiudad Real 13071Spain Institute for Analytics and Data science University of EssexColchester CO43SQUK Alarcos Research Group University of Castilla-La ManchaCiudad Real 13071Spain IsTR Research group Department of Computer Science and ElectronicsUniversity of CantabriaSantander 39005Spain

The information society depends increasingly on risk assessment and management systems as means to adequately protect its key information *** availability of these systems is now vital for the protection and evolution of ***,several factors have led to an increasing need for more accurate risk analysis *** are:the speed at which technologies evolve,their global impact and the growing requirement for companies to *** analysis processes must consequently adapt to these new circumstances and new technological *** objective of this paper is,therefore,to present the results of an exhaustive analysis of the techniques and methods offered by the scientific community with the aim of identifying their main weaknesses and providing a new risk assessment and management *** analysis was carried out using the systematic review protocol and found that these proposals do not fully meet these new *** paper also presents a summary of MARIsMA,the risk analysis and management framework designed by our research *** basis of our framework is the main existing risk standards and proposals,and it seeks to address the weaknesses found in these *** is in a process of continuous improvement,as is being applied by customers in several European and American *** consists of a risk data management module,a methodology for its systematic application and a tool that automates the process.

关键词： information security management security system security risk assessment and management

Novel insights into D-Pinitol based therapies:a link between tau hyperphosphorylation and insulin resistance

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Neural Regeneration Research 2024年第2期19卷 289-295页

作者： Dina medina-Vera Antonio Jesús López-Gambero Juan Antonio Navarro Carlos sanjuan Elena Baixeras Juan Decara Fernando Rodríguez de Fonseca Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina-IBIMA Plataforma BIONAND UGC Salud MentalMálagaSpain Facultad de Ciencias Universidad de MálagaMálagaSpain CIBER Enfermedades Cardiovasculares(CIBERCV) Hospital Universitario Virgen de la VictoriaUGC del CorazónMálagaSpain University of Bordeaux INSERMNeurocentre MagendieBordeauxFrance Euronutra s.L.Calle Johannes Kepler MálagaSpain Departamento de Bioquímica y Biología Molecular Facultad de MedicinaUniversidad de MálagaMálagaSpain

Alzheimer’s disease is a neurodegenerative disorder characterized by the amyloid accumulation in the brains of patients with Alzheimer’s *** pathogenesis of Alzheimer’s disease is mainly mediated by the phosphorylation and aggregation of tau *** the multiple causes of tau hyperphosphorylation,brain insulin resistance has generated much attention,and inositols as insulin sensitizers,are currently considered candidates for drug *** present narrative review revises the interactions between these three elements:Alzheimer’s disease-tau-inositols,which can eventually identify targets for new disease modifiers capable of bringing hope to the millions of people affected by this devastating disease.

关键词： Alzheimer’s disease cyclin-dependent kinase 5 diabetes D-Pinitol inositols insulin resistance kinases phosphorylation PI3K/Akt tau

Efficient removal of the recalcitrant metamizole contaminant from drinking water by using a CaLaCoO_(9) perovskite supported on recycled polyethylene

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Journal of Environmental sciences 2024年第2期136卷 56-67页

作者： Ernesto Valadez-Renteria Christian Perez-Carrasco Dulce Yolotzin medina-Velazquez Vicente Rodriguez-Gonzalez Jorge Oliva CONACYT-División de Materiales Avanzados Instituto Potosino de Investigación Científica y Tecnológica A.C.San Luis PotosíSLP 78216México División de Ciencias Básicas e Ingeniería Universidad Autónoma Metropolitana AzcapotzalcoCol.Reynosa-TamaulipasC.P.MéxicoDF 02200México

Metamizole(MZ)is a widely used anti-inflammatory *** to its common use,this contaminant is found in sewage and *** order to reduce the contamination produced by the MZ,we fabricated in this work a photocatalytic composite using recycled polyethylene(RPE)and the CaLaCoO_(9)(LCCO)*** nanoparticles had a microplate-like morphology and sizes of 1.4–5.5μm according to the analysis of *** photocatalytic properties of the LCCO powders were evaluated under ultraviolet-visible(UV-Vis)irradiation and found a removal efficiency of 96%.When the RPE+LCCO composite was employed for the photocatalytic degradation of MZ,a maximum degradation of 92.5%was *** influence of the pH on the photocatalytic activity was also studied and found that an initial pH=3 produced a total degradation of MZ after 240 min of UV-Vis ***,three reuse cycles were carried out for the pure LCCO powders and for the RPE+LCCO composites and found that the maximum loss of degradation was 5%.Furthermore,scavenger experiments demonstrated that the super oxide and hydroxyl radicals are formed during the photocatalytic reaction and were responsible for the degradation of ***,the X-ray photoelectron-spectroscopy and Raman analysis demonstrated the formation of defects(oxygen vacancies),those ones delayed the electron-hole recombination,which in turn,enhanced the degradation of the ***,the studies performed in this work proved that composites made with recycled plastics and LCCO perovskites are a low-cost and feasible alternative for the cleaning of water sources polluted with pharmaceutical compounds.

关键词： Photocatalysis Metamizole Pharmaceutical contaminant UV-Vis irradiation Perovskite

Robotic management of urinary fistula

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Asian Journal of Urology 2024年第3期11卷 357-365页

作者： Luis G.medina Randall A.Lee Valeria Celis Veronica Rodriguez Jaime Poncel Aref s.sayegh Rene sotelo The Catherine and Joseph Aresty Department of Urology USC Institute of UrologyKeck School of MedicineUniversity of Southern CaliforniaLos AngelesCAUSA Division of Urology Department of SurgeryFox Chase Cancer CenterTemple University Health SystemPhiladelphiaPAUSA

Objectives:To highlight critical preoperative and intraoperative considerations in approaching fistula repair ***:A search of the literature was conducted to identify relevant articles pertaining to robotic management of urinary ***:Fistulae of the genitourinary tract can be a challenging dilemma for urologists,as definitive management may require surgical *** of both enteric and non-enteric fistulae are multifactorial,and successful repair hinges on the meticulous perioperative evaluation,planning,and *** open techniques can subject patients to increased morbidity and prolonged *** its introduction,the robotic surgical platform has continued to expand its *** three-dimensional visualization and tremor free wristed instrument movements have made the robotic platform an attractive option for genitourinary fistula ***:Robotic management of complex urinary fistulae is feasible in expert hands;more studies are needed to define its role in the treatment algorithm of this devastating conditions.

关键词： Fistula Robotic surgery Rectourethral Rectovesical Vesicovaginal

Interactions between maternal parity and feed additives drive the composition of pig gut microbiomes in the post‑weaning period

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Journal of Animal science and Biotechnology 2024年第3期15卷 1241-1257页

作者： Kayla Law Eduardo Rosa medina Garcia Chad Hastad Deborah Murray Pedro E.Urriola Andres Gomez Department of Animal science University of Minnesota1364 Eckles AvenueSaint PaulMN 55108USA New Fashion Pork 164 Industrial ParkwayJacksonMN 56143USA

Background Nursery pigs undergo stressors in the post-weaning period that result in production and welfare *** challenges disproportionately impact the offspring of primiparous sows compared to those of mul-tiparous *** is known regarding potential interactions between parity and feed additives in the post-weaning period and their effects on nursery pig ***,the objective of this study was to investigate the effects of maternal parity on sow and offspring microbiomes and the influence of sow parity on pig fecal microbi-ome and performance in response to a prebiotic *** weaning,piglets were allotted into three treat-ment groups:a standard nursery diet including pharmacological doses of Zn and Cu(Con),a group fed a commercial prebiotic only(Preb)based on an Aspergillus oryzae fermentation extract,and a group fed the same prebiotic plus Zn and Cu(Preb+ZnCu).Results Although there were no differences in vaginal microbiome composition between primiparous and mul-tiparous sows,fecal microbiome composition was different(R^(2)=0.02,P=0.03).The fecal microbiomes of primiparous offspring displayed significantly higher bacterial diversity compared to multiparous offspring at d 0 and d 21 post-weaning(Ps in community composition observed at d 21(R^(2)=0.03,P=0.04).When analyzing the effects of maternal parity within each treatment,only the Preb diet triggered significant microbiome distinc-tions between primiparous and multiparous offspring(d 21:R^(2)=0.13,P=0.01;d 42:R^(2)=0.19,P=0.001).Composi-tional differences in pig fecal microbiomes between treatments were observed only at d 21(R^(2)=0.12,P=0.001).Pigs in the Con group gained significantly more weight throughout the nursery period when compared to those in the Preb+ZnCu *** Nursery pig gut microbiome composition was influenced by supplementation with an Aspergillus oryzae fermentation extract,with varying effects on performance

关键词： Aspergillus prebiotic Copper Feed additives Maternal Nursery pig microbiome Parity swine microbiome Trace minerals Zinc

Polyoxidovanadates a new therapeutic alternative for neurodegenerative and aging diseases

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Neural Regeneration Research 2024年第3期19卷 571-577页

作者： sonia Irais Gonzalez-Cano Gonzalo Flores Jorge Guevara Julio Cesar Morales-medina samuel Treviño Alfonso Diaz Faculty of Chemical sciences Benemerita Autonomous University of PueblaPueblaMexico Institute of Physiology Benemerita Autonomous University of PueblaPueblaMexico Department of Biochemistry Faculty of MedicineNational Autonomous University of MexicoMexico CityMexico Animal Reproduction Research Center CINVESTAV-Autonomous University of TlaxcalaTlaxcalaMexico

Aging is a natural phenomenon characterized by a progressive decline in physiological integrity,leading to a deterioration of cognitive function and increasing the risk of suffering from chronic-degenerative diseases,including cardiovascular diseases,osteoporosis,cancer,diabetes,and *** is considered the major risk factor for Parkinson’s and Alzheimer’s disease ***,diabetes and insulin resistance constitute additional risk factors for developing neurodegenerative ***,no treatment can effectively reverse these neurodegenerative ***,some antidiabetic drugs have opened the possibility of being used against neurodegenerative *** the previous framework,Vanadium species have demonstrated a notable antidiabetic *** research group evaluated polyoxidovanadates such as decavanadate and metforminium-decavanadate with preventive and corrective activity on neurodegeneration in brain-specific areas from rats with metabolic *** results suggest that these polyoxidovanadates induce neuronal and cognitive restoration *** review aims to describe the therapeutic potential of polyoxidovanadates as insulin-enhancer agents in the brain,constituting a therapeutic alternative for aging and neurodegenerative diseases.

关键词： Alzheimer’s disease antidiabetic brain cognition diabetes insulin neurodegeneration neuroinflammation oxidative stress Vanadium species

钒微合金钢中形变奥氏体的静态再结晶和诱导析出动力学

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国外钢铁钒钛 1995年第2期8卷 46-54页

作者： medina,s 张开坚墨西哥Autonoma de

采用扭转试验和外推法，研究了三种不同含钒量的微合金钢形变奥氏体的静态再结晶动力学，建立了静态再结晶临界温度（ＳＲＣＴ）以上及其以下的温度模型。业已发现，ＳＲＣＴ是应变、奥氏体晶粒尺寸和现合金含量的函数，这里的微合金即... 详细信息

采用扭转试验和外推法，研究了三种不同含钒量的微合金钢形变奥氏体的静态再结晶动力学，建立了静态再结晶临界温度（ＳＲＣＴ）以上及其以下的温度模型。业已发现，ＳＲＣＴ是应变、奥氏体晶粒尺寸和现合金含量的函数，这里的微合金即指Ｎ和Ｖ。还对三种钢的应变诱导析出动力学进行了研究，测定了它们的析出－时间－温度（ＰＴＴ）曲线。测定了未再结晶温度（Ｔｎｒ），并得出结论。

关键词：静态再结晶诱导析出动力学钒微合金钢

Expanding the Boundaries of the Chemical space of DNA Methyltransferase 1 Modulators

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Computational Molecular Bioscience 2024年第1期14卷 1-16页

作者： Massyel s. Martínez-Cortés Diana L. Prado-Romero José L. medina-Franco DIFACQUIM Research Group Department of Pharmacy School of Chemistry Universidad Nacional Autónoma de México Avenida Universidad 3000 Mexico City México

DNA methyltransferase 1 (DNMT1), one of the main epigenetic targets, is involved in the duplication of the DNA methylation pattern during replication, and it is essential for proper mammalian development. small molecule DNMT1 modulators are attractive for biochemical epigenetic studies and have the potential to become drugs. so far, more than five hundred small molecules have been reported as DNMT1 inhibitors. However, only a limited number of DNMT1 activators have been disclosed because, at least in part, DNMT1 activators are typically regarded as negative data in virtual screening campaigns or optimization projects. This manuscript aims to report the chemical structures and biological activity of small molecules that increase the enzymatic activity of DNMT1. Results of the biochemical experimental assays are discussed. It was found that small molecule activators have a large variety of chemical scaffolds but share pharmacophore features. Visual analysis of the chemical space and multiverse based on molecular fingertips supported that activators are structurally diverse. This is the first report of eight small molecules that increase the enzymatic activity of DNMT1 by more than 400% in an enzymatic-based assay. The outcome warrants further investigation of the epigenetic activity of the compounds in a counter-screen assay, e.g., cell-based and in vivo context.

关键词： Chemical Multiverse Chemoinformatics Epigenetics Pharmacophore Hypothesis small Molecules