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MicroRnAs dysregulation in hepatocellular carcinoma: Insights in genomic medicine

World Journal of Hepatology 2015年第11期7卷 1530-1540页

作者： iván lyra-gonzález Laura E Flores-Fong Ignacio gonzález-García David Medina-Preciado Juan Armendáriz-Borunda Departamento de Biología Molecular y Genómica CUCS Universidad de Guadalajara Instituto de Biología Molecular en Medicina y Terapia Génica O.P.D. Hospital Civil de Guadalajara "Fray Antonio Alcalde" O.P.D. Hospital Civil de Guadalajara "Juan I. Menchaca" Departamento de Biología Molecular y Genómica CUCS Universidad de Guadalajara

Hepatocellular carcinoma(HCC) is the leading primary liver cancer and its clinical outcome is still poor. MicroRnAs(mi RnAs) have demonstrated an interesting potential to regulate gene expression at post-transcriptional level. Current findings suggest that mi RnAs deregulation in cancer is caused by genetic and/or epigenetic, transcriptional and post-transcriptional modifications resulting in abnormal expression and hallmarks of malignant transformation: aberrant cell growth, cell death, differentiation, angiogenesis, invasion and metástasis. The important role of mi RnAs in the development and progression of HCC has increased the efforts to understand and develop mechanisms of control overt this single-stranded RnAs. Several studies have analyzed tumoral response to the regulation and control of deregulated mi RnAs with good results in vitro and in vivo, proving that targeting aberrant expression of mi RnAs is a powerful anticancer therapeutic. Identification of up and/or down regulated mi RnAs related to HCC has led to the discovery of new potential application for detection of their presence in the affected organism. Mi RnAs represent a relevant new target for diagnosis, prognosis and treatment in a wide variety of pathologic entities, including HCC. This manuscript intends to summarize current knowledge regarding mi RnAs and their role in HCC development.

关键词： Hepatocellular carcinoma MicroRnAs Regulation Therapeutic targets

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Influence of biomass burning on ozone levels in the Megalopolis of Central Mexico during the COVID-19 lockdown

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Journal of Environmental Sciences 2024年第9期143卷 99-115页

作者： Victor Almanza Luis Gerardo Ruiz-Suárez Ricardo Torres-Jardón Agustín García-Reynoso iván Y.Hernández-Paniagua Institute for Atmospheric Sciences and Climate Change National Autonomous University of MexicoCoyoacan 04510Mexico CityMexico

The massive reductions in anthropogenic emissions resulting from the COVID-19 lockdown provided a unique opportunity to evaluate the effect of mitigation measures aiming to abate air *** Mexico,the total lockdown period took place during the dry-hot season when biomass burning activity is ***,we investigate the role of biomass burning emissions on regional ozone levels in the Megalopolis of Central *** studied period covers the lockdown phases 2 and 3,and the first month of the new *** applied a factor separation technique and process analysis to estimate the pure and synergistic contributions of emission reductions under lockdown and that from biomass burning to daily ozone maximum concentrations in 7 metropolitan areas of different states in the *** results revealed that biomass burning plumes likely masked the effect of massive reductions from mobile emissions,impacted the PBL development during phase 3 and favored transition and mixed nO_(x)-limited and VOC-limited regional *** contributed to increased ozone production in the middle to lower PBL by changing the regional background levels which potentially could bias high ozone production efficiency *** the Megalopolis contribution to economic and societal development at national scale,our study suggests that ozone mitigation measures during the dry-hot season targeting mainly mobile emissions will likely be offset by biomass burning plumes.A regional and synergic policy aiming to control biomass burning would help to reduce the occurrence of high ozone levels in Central Mexico with the co-benefit of tackling short-lived climate pollutants.

关键词： COVID-19 Mexico Megalopolis Ozone Factor Separation Process Analysis

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Technical efficiency of cocoa farms at varying elevation levels in Davao City, Philippines: implications to sustainable upland farming systems

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Journal of Mountain Science 2024年第1期21卷 33-48页

作者： Francis Levi A.DURAnO Jon Marx SARMIEnTO Larry n.DIGAL Pedro A.ALVIOLA iv School of Management University of the Philippines MindanaoDavao City 8000Philippines

Elevation is one of many components that influence agriculture, and this in turn affects the level of both inputs and outputs of farmers. This article focuses on the productivity and technical efficiency of 100 cocoa farms using cross-sectional data from areas ranging from 190 to 1021 m above sea level which were classified as low, medium, and high elevation in Davao City, considered as the chocolate capital of the Philippines. Using stochastic frontier analysis, the results showed that the cost of inputs per ha and the number of cocoa trees per ha significantly increase yield. Farms at high elevations were less technically efficient, as this entails lower temperatures and increased rainfall, and cocoa farming in those areas and conditions can be more challenging, especially with changes in farming practices, terrain, and distance to markets. Other significant variables were age of cocoa farms, married farmers, and age of the farmers. Older farms may be more developed, farmers who are married benefit from their spouses being able to readily contribute as farm labor, and lastly, older farmers' inefficiency may likely stem from nonadaptation of newer farming practices. With an average technical efficiency of 0.61, 0.63, and 0.26 in low, medium, and high elevation areas, respectively, farmers therefore have an incentive to improve farm practices and consider topographical variations found in high elevation areas. Recommendations for the improvement of technical efficiency of cocoa farms are better connectivity to markets, enhancing farm practices, and continuation and improvement of government programs on cocoa with an added emphasis on research. For farmers in high elevation areas, mitigating solutions such as sustainable agriculture practices and ecolabelling are key to improving efficiency and minimizing the potential negative impact on upland farming systems. Moreover, such adaptation measures may also contribute to sustainability of cocoa farming in high elevation

关键词： Cocoa farms Cobb-Douglas production function Elevation Philippines Stochastic frontier analysis Technical efficiency

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Mental health in organizations from a healthcare analytics framework:taxonomic model,trends,and impact of COVID-19

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Journal of Management Analytics 2024年第1期11卷 62-86页

作者： Jorge iván Pérez Rave Carlos Mario Zapata Jaramillo Gloria Patricia Jaramillo Álvarez IDInnOV research group IDINNOV S.A.SMedellínColombia Department of Computing and Decision Sciences Universidad Nacional de ColombiaMedellínColombia

Mental disorders negatively affect employee well-being and organizational *** face a challenge in terms of how to manage mental *** paper clarifies three issues(underlying patterns,trends,and impact of COVID-19)regarding the scientific study of mental health in organizations from a healthcare analytics *** framework comprises eight stages considering a text-driven approach with scientific corpora assisted by linguistic/computational and statistical *** study discovers a new taxonomic model comprising five patterns in the scientific discourse on the *** analyses reveal imbalances and concerns regarding the interests associated with the patterns,which is reinforced by examining patterns“before”and“during”*** paper complements psychological/epidemiological studies on mental health in organizations from a healthcare analytics perspective.

关键词： Healthcare analytics healthcare management analytics mental health scientific discourse text analytics taxonomy COVID-19 management analytics

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nutritional Supplement Ocoxin® Combined with Gemcitabine-Based Chemotherapy in Patients with Advanced Pancreatic Adenocarcinoma

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Open Journal of Gastroenterology 2024年第8期14卷 267-287页

作者： Mayté Lima-Pérez Jorge Luis Soriano-García Masiel gonzález-Meisozo Jorge Luis Soriano-Lorenzo Vilma Fleites-Calvo Dunia Morales-Morgado Carlos Domínguez-Álvarez iván Ramón-Concepción Raidel Rodríguez-Barrios Alicia Tarinas-Reyes ivis Mendoza-Hernández Rolando Uranga-Piña Clinical Oncology Department Ameijeiras Hospital Havana Cuba Clinical Pathology Department Ameijeiras Hospital Havana Cuba Clinical Section National Coordinating Centre for Clinical Trials Havana Cuba Biostatistics Section National Coordinating Centre for Clinical Trials Havana Cuba

Background: the quality of life (QoL) of patients with pancreatic ductal adenocarcinoma (PDAC), with its limited survival, can be affected by chemotherapy-induced toxicity. The main objective was to evaluate the effect of introducing ocoxin oral solution (OOS) in combination with standard therapy on quality of life. Methods: Thirty patients were enrolled in an exploratory, prospective, single-centre clinical trial in the oncology department of “Hermanos Ameijeiras” University Hospital in Havana, Cuba. Quality of life was measured using the EORTC QLQ-C30 questionnaire and toxicity was assessed using the nCI-CTC-AE classification version 5.0. Results: There was stability in the scores over time for overall QoL and the functional scale criteria, while in terms of symptoms, fatigue, pain and loss of appetite were reduced. no grade 3 - 4 adverse events (AEs) were recorded, and only 14.9% of toxicities were classified as grade 2, and these were considered to be unrelated to OOS. Biochemical and nutritional parameters were normalised at 12 months compared to the baseline values. Conclusions: This clinical study is the first report of the use of OOS in patients with advanced pancreatic cancer, and demonstrates that it is able to maintain optimal quality of life with reduced severity of toxicity during and after combination treatment with gemcitabine-based chemotherapy.

关键词： EORTC QLQ-C30 Ocoxin Chemotherapy Pancreatic Cancer Quality of Life

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nO-ARBITRAGE SYMMETRIES

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Acta Mathematica Scientia 2022年第4期42卷 1373-1402页

作者： iván DEGAnO Sebastián FERRAnDO Alfredo gonzález Departamento de Matemática.Facultad de Ciencias Exactas y naturales Universidad Nacional de Mar del Plata 7600Argentina Department of Mathematics Ryerson University350 Victoria St.TorontoOntario M5B 2K3Canada

The no-arbitrage property is widely accepted to be a centerpiece of modern financial mathematics and could be considered to be a financial law applicable to a large class of(idealized) *** paper addresses the following basic question:can one characterize the class of transformations that leave the law of no-arbitrage invariant?We provide a geometric formalization of this question in a non probabilistic setting of discrete time-the so-called trajectorial *** paper then characterizes,in a local sense,the no-arbitrage symmetries and illustrates their meaning with a detailed *** context makes the result available to the stochastic setting as a special case.

关键词： no arbitrage symmetry convexity preserving maps non-probabilistic markets

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Exploring kidney biopsy findings in congenital heart diseases:Insights beyond cyanotic nephropathy

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World Journal of nephrology 2024年第1期13卷 25-32页

作者： Jose Daniel Juarez-Villa iván Zepeda-Quiroz Sebastián Toledo-Ramírez Victor Hugo Gomez-Johnson Francisco Pérez-Allende Brian Ricardo Garibay-Vega Francisco E Rodríguez Castellanos Bernardo Moguel-gonzález Edgar Garcia-Cruz Salvador Lopez-Gil Department of nephrology Instituto Nacional de Cardiología Ignacio ChavezMexico City 14080Mexico Congenital Heart Disease Instituto Nacional de Cardiología Ignacio ChavezMexico City 14080Mexico

BACKGROUnD The association between congenital heart disease and chronic kidney disease is well *** mechanisms of kidney damage associated with congenital heart disease have been *** etiology of kidneydisease has commonly been considered to be secondary to focal segmental glomerulosclerosis(FSGS),however,this has only been demonstrated in case reports and not in observational or clinical *** To identify baseline and clinical characteristics,as well as the findings in kidney biopsies of patients with congenital heart disease in our *** This is a retrospective observational study conducted at the nephrology Depart-ment of the national Institute of Cardiology“Ignacio Chávez”.All patients over 16 years old who underwent percutaneous kidney biopsy from January 2000 to January 2023 with congenital heart disease were included in the *** Ten patients with congenital heart disease and kidney biopsy were *** average age was 29.00 years±15.87 years with pre-biopsy proteinuria of 6193 mg/24 h±6165 mg/24 *** most common congenital heart disease was Fallot’s tetralogy with 2 cases(20%)and ventricular septal defect with 2(20%)*** the 10 cases,one case of IgA nephropathy and one case of membranoproliferative glomerulonephritis associated with immune complexes were found,receiving specific treatment after histopathological diagnosis,delaying the initiation of kidney replacement *** remaining 8 cases(80%),one case of FSGS with perihilar variety was found,while the other 7 cases were non-specific *** Determining the cause of chronic kidney disease can help in delaying the need for kidney replacement *** 2 out of 10 patients in our study,interventions were performed,and initiation of kidney replacement therapy was *** studies are needed to determine the usefulness of kidney biopsy in patients with congenital heart disease.

关键词： Renal biopsy Congenital heart disease Chronic kidney disease Focal segmental glomerulosclerosis

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Shade shelters increase survival and photosynthetic performance of oak transplants at abandoned fields in semi-arid climates

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Journal of Forestry Research 2013年第1期24卷 23-28页

作者： Claudia gonzález-Salvatierra Ernesto iván Badano Joel Flores Juan Pablo Rodas División de Ciencias Ambientales Instituto Potosino de Investigación Científica y TecnológicaA.C.Camino a la Presa San José 2055C.P. 78216San Luis PotosíS.L.P.México.

Forest restorations conducted in semiarid, seasonally dry climates must deal with the intense drought stress that affects tree seedlings during the dry season. Although this water deficit is the most commonly invoked source of mortality for seedlings, several other environmental factors may also preclude survival of transplants. For instance, it has been widely reported that excessive light reduces the efficiency of the photosynthetic apparatus, hence decreasing plant survival, but most seedling transplants in deforested areas are conducted under these light conditions. This study is focused in determining whether excessive light affects the photosynthetic performance and survival of Quercus coccolobifolia, a Mexican oak species, when their seedlings are transplanted in semiarid deforested areas. Further, this study tests the possibility of using artificial shade shelters to improve the ecophysiological performance and survival of seedlings. Oak seedlings were transplanted under full sunlight conditions and beneath artificial shade shelters of two different colors： white and black. To reduce water stress, and hence isolate the effects of light treatments, a drip irrigation system was implemented at each experimental plot. Seedling survival was monitored weekly for 128 days and photosynthetic performance was assessed by measuring chlorophyll fluorescence at three opportunities during the experiment. Sun-exposed seedlings showed lower photosynthetic performance and survival rates than those beneath shelters of both colors. These results suggest that sunlight damage can reduce seedling survival when they are transplanted in exposed sites, and that shade shelters can improve the success of forest restoration programs in semiarid climates.

关键词： chlorophyll fluorescence light stress photoinhibition reforestation forest restoration

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Solid-Tubulocystic carcinoma:A new variant of intrahepatic cholangiocarcinoma

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World Journal of Hepatology 2023年第7期15卷 897-903页

作者： iván A gonzález Wenyi Luo Xuchen Zhang Department of Pathology and Laboratory Medicine Indiana University School of MedicineIN 46202United States Department of Pathology Yale University School of MedicineNew HavenCT 06511United States

A new variant of intrahepatic cholangiocarcinoma(iCCA)has been recognized in recent years presenting predominantly as a large hepatic mass in young woman with the characteristic expression of inhibin by *** variant iCCA was originally termed as cholangioblastic variant of iCCA,and subsequently proposed to be renamed as inhibin-positive hepatic carcinoma or solid-tubulocystic variant of iCCA to better reflect its immunohistochemical profile or morphologic *** tumor histologically is composed of small to medium sized cells with scant to moderate amount of eosinophilic cytoplasm heterogeneously organized in solid,tubular,and cystic growth *** tumor cells are positive for biliary markers,inhibin and albumin,and have a novel recurrent gene fusion,nIPBL::*** of this new iCCA variant and its clinicopathologic features will aid in the diagnostic work-up and avoid confusion with other primary and metastatic hepatic neoplasms.

关键词： Cholangiocarcinoma Intrahepatic Solid-tubulocystic Cholangioblastic Inhibin

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Receptor of advanced glycation end-products axis and gallbladder cancer:A forgotten connection that we should reconsider

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World Journal of Gastroenterology 2022年第39期28卷 5679-5690页

作者： Armando Rojas Cristian Lindner iván Schneider Ileana gonzàlez Miguel Angel Morales Biomedical Research Laboratories Catholic University of MauleTalca 34600000MauleChile Medicine Faculty Catholic University of MauleTalca 34600000MauleChile Department of Molecular and Clinical Pharmacology Program Institute of Biomedical SciencesUniversity of ChileSantiago 8320000SantiagoChile

Compelling evidence derived from clinical and experimental research has demonstrated the crucial contribution of chronic inflammation in the development of neoplasms,including gallbladder *** this regard,data derived from clinical and experimental studies have demonstrated that the receptor of advanced glycation end-products(RAGE)/AGEs axis plays an important role in the onset of a crucial and long-lasting inflammatory milieu,thus supporting tumor growth and *** are formed in biological systems or foods,and food-derived AGEs,also known as dietary AGEs are known to contribute to the systemic pool of *** they bind to RAGE,the activation of multiple and crucial signaling pathways are triggered,thus favoring the secretion of several proinflammatory cytokines also involved in the promotion of gallbladder cancer invasion and *** the present review,we aimed to highlight the relevance of the association between high dietary AGEs intakes and high risk for gallbladder cancer,and emerging data supporting that dietary intervention to reduce gallbladder cancer risk is a very attractive approach that deserves much more research efforts.

关键词： Gallbladder cancer Advanced glycation end-products Receptor of advanced glycation end-products Chronic inflammation nutrition

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