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RNAi technology targeting PbGP43 and PbP27 in Paracoccidioides brasiliensis

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Open Journal of Genetics 2013年第2期3卷 1-8页

作者： Isaura torres Gomez Orville Hernandez Ruiz Jose F.Munoz Ana maria Garcia Angela Restrepo Juan G.McEwen Unidad de Biologia Celular y Molecular Corporacion para Investigaciones Biologicas(CIB)MedellinColombia Instituto de Biologia Universidad de AntioquiaMedellinColombia Grupo de Investigacion en Biociencias Facultad de Ciencias de la SaludInstitucion Universitaria Colegio Mayor de AntioquiaMedellinColombia Facultad de Medicina Universidad de AntioquiaMedellinColombia

Efficient technologies for gene silencing would be important to carry out functional analysis with P. brasiliensis genes, as well as for a better understanding of the biology and pathogenesis of this pathogenic fungus. Due to the fact that homologous recombination is unusual in P. brasiliensis, the development of knockout isolates is currently non-feasible. The goal of this work was to assess RNA interference (RNAi) technology as an alternative tool for gene silencing previously employed successfully in H. capsulatum. For this purpose, we built different inverted repeat transgenic hairpin constructs to down-regulate the PbGP43 and PbP27 genes known to codify for two fungal immunogenic proteins that elicit a strong immune response during experimental paracoccidioidomycosis. Using the RNAi strategy, a reduction in the mRNA levels of the PbGP43 and PbP27 genes was observed during the first 20 days after selection;however, in the transformed yeast cells, the gene silencing status proved non-stable through the assay. We demonstrated that electrotransformation was suitable to transform P. brasiliensis yeast cells and integrate the hairpin constructions;nonetheless, gene silencing was not stable along the experimental time. A detailed analysis of the underlying molecular RNAi machinery may provide further insights into the intracellular mechanism that governs this reverse genetic tool.

关键词： Paracoccidioides brasiliensis Interference RNA Gene Silencing PbGP43 PbP27 Gene Expression

Y-chromosome Peruvian origin of the 500-year-old Inca child mummy sacrificed in Cerro Aconcagua (Argentina)

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Science Bulletin 2018年第22期63卷 1457-1459页

作者： Antonio Salas Laura Catelli Jacobo Pardo-Seco Alberto Gomez-Carballa Federico Martinon-torres Joaquin Roberto-Barcena Carlos Vullo Unidade de Xenetica Instituto de Ciencias ForensesFacultade de MedicinaUniversidade de Santiago de Compostela (USC)and GenPoB Research GroupInstituto de Investigaciones Sanitarias (IDIS)Hospital Clinico Universitario de Santiago (SERGAS)GaliciaSpain Equipo Argentino de Antropologia Forense Independencia 644-3AEdif.EME1CordobaArgentina Translational Pediatrics and Infectious Diseases Hospital Clinico Universitario de SantiagoSantiago de CompostelaSpain GENVIP Research Group (***) Instituto de Investigacion Sanitaria de SantiagoGaliciaSpain Instituto Etnologico de la Universidad Nacional de Cuyo (UNC) MendozaArgentina

A frozen mummy was found in Cerro Aconcagua (Argentina)in 1985(Fig.1a-c).Archaeologists identified this mummy as a seven-year-old Inca sacrifice victim living at the time of the Inca Civilization about 500years ago [1].The child was sacrificed following an Incan ritual known as *** complete mitochondrial DNA (mtDNA) genome of this mummy was recently analyzed in Gomez-Carballa et al.[2].This mitogenome belongs to a new sub-branch of the Native American phylogeny named C1bi dated to approximately 14 thousand years ago (loja).Information retrieved from a large database of mtDNA profiles indicated the existence of a few closely related haplotypes in Peru (including one haplotype retrieved from ancient DNA of an individual belonging to the Wari Empire)and the Aymaras from *** these data suggested a Peruvian Inca origin for this C1bi haplotype,in good agreement with archaeological reports [1].

关键词：木乃伊儿童

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美国女性在建筑业中发掘就业空间

商业周刊（中文版） 2022年第14期 24-25页

作者： Craig torres maria Paula Mijares torres Alex Tanzi 许诺(译) 不详

安迪·德克施奈德(AndiDirkschneider)的家族经营住宅建筑生意,她经常为获得数百万美元用于购买土地的贷款进行谈判。卖家有时会称呼她“亲爱的”,然后提出要跟负责的人讲话。“我告诉他们说,我就是负责人,”今年32岁的德克施奈德说。... 详细信息

安迪·德克施奈德(AndiDirkschneider)的家族经营住宅建筑生意,她经常为获得数百万美元用于购买土地的贷款进行谈判。卖家有时会称呼她“亲爱的”,然后提出要跟负责的人讲话。“我告诉他们说,我就是负责人,”今年32岁的德克施奈德说。她是北卡罗来纳州夏洛特市建筑企业BrooklineHomes的总裁。“看到一位年轻的金发女子做这事让所有人都很震惊,”她说,“这事很让人不快,但你不能被它左右。”

关键词：北卡罗来纳州施奈德住宅建筑建筑业夏洛特德克就业空间家族经营

Increased myo-inositol in the posterior cingulate cortex in first-episode major depressive patients

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Advances in Bioscience and Biotechnology 2013年第6期4卷 45-52页

作者： Lily Magally Granados-Dominguez Enrique O.Flores-Gutierrez Sarael Alcauter Juan Jose Cervantes Marina torres-Alvarez maria Corsi-Cabrera Laboratory for Sleep Research Faculty of PsychologyUniversidad Nacional Autonoma de Mexico(UNAM)Mexico CityMexico Sub-Department of Clinical Investigations Instituto Nacional de Psiquiatria Ramon de la Fuente MunizMexico CityMexico

Major depressive disorder (MDD) is a severe, disabling pathology characterized, in addition to affective, cognitive and motor symptoms, by self-focused attention and rumination. During recursive self-focused processes and rumination, the posterior cingulate cortex (PCC) is activated. In vivo proton magnetic resonance spectroscopy (MRS) is a noninvasive imaging technique that can directly assess living biochemistry in localized brain regions. The aim of this study, therefore, was to use 1H-MRS as a means of analyzing brain metabolites in the PCC of a group of first-episode, unmedicated MDD patients. PCC metabolite levels were analyzed at 3-T in a single voxel located bilaterally over the PCC in 7 patients diagnosed for the first time with MDD and with no previous pharmacological treatment, as well as in 9 control subjects. Differences in metabolite levels between groups were compared using independent t-tests. Myo-inositol was significantly higher, and NAA + NAAG/Cr significantly lower, in MDD patients than in controls. The other brain metabolites showed no statistical differences. The present results suggest that alterations in PCC metabolite levels are likely involved in MDD pathophysiology, and may help to improve our understanding of MDD and the role of the PCC in some symptoms of depression.

关键词： Major Depressive Disorder Posterior Cingulate Cortex Metabolites ^(1)H-MRS Myo-Inositol N-Acetyl-Aspartate

Effect of dietary supplementation with olive and sunflower oils on lipid profile and liver histology in rats fed high cholesterol diet

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Asian Pacific Journal of Tropical Medicine 2017年第6期10卷 609-613页

作者： Sandra Mara Pimentel Duavy Gerson Javier torres Salazar Gerlania de Oliveira Leite Assis Ecker Nilda Vargas Barbosa Departamento de Química Universidade Regional do Cariri(URCA)Campus Pimenta Departamento de Bioquímica e Biologia Molecular Programa de Pós-Graduacao em Ciências Biológicas:Bioquímica ToxicológicaUniversidade Federal de Santa Maria(UFSM)Campus Universitário-Camobi Departamento de Farmacologia Programa de Pós-Graduacao em FarmacologiaUniversidade Federal de Santa Maria(UFSM)Campus Universitário-Camobi

Objective: To compare the effects of high-monounsaturated(MUFA) and polyunsaturated fatty acids(PUFA) against the metabolic disorders elicited by a high-cholesterol diet(HC) in rats. Methods: Using in vivo dietary manipulation, rats were fed with different diets containing 4% soybean oil(cholesterol free diet) and 1% HC containing 12% olive oil(HC+OO) enriched with MUFA and 12% sunflower oil(HC+SO) enriched with PUFA for 60 d. Serum lipid levels and hepatic steatosis were evaluated after the treatment period. Results: Comparatively, rats treated with HC+OO diet experienced a decrease in the serum LDL-C, VLDL-C and CT levels compared to those fed with HC+SO diet(P<0.05). Otherwise, HC+OO provoked significant microvesicular steatosis situated in the hepatic acinar zone 1. Conclusions: HC+OO diet has high absorption velocity in the acinar zone 1 of liver compared to the HC+SO diet. Based on this, the reduction of the LDL-C, VLDL-C and CT serum levels in the animals treated with HC+OO diet can be caused by the delay in the FA release to the blood.

关键词： Cholesterol diets Olive oil Sunflower oil Serum lipids Liver steatosis

Morphological Characterization and Hydrodynamic Behavior of Shortfin Mako Shark(Isurus oxyrinchus)Dorsal Fin Denticles

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Journal of Bionic Engineering 2019年第4期16卷 730-741页

作者： Fernandez-Waid Patricia Diez Guzman Bidaguren Inigo Izagirre Urtzi Blanco Jesus maria Soto Manu Department of Zoology and Animal Cell Biology Research Centre for Experimental Marine Biology and Biotechnology(PiE-UP V/EHU)University of the Basque CountryBilbao and Areatza z/gPlentzia 48620BizkaiaSpain Marine Research Division AZTITxatxarramendi s/n Sukarrieta 48395BizkaiaSpain Department of Nuclear Engineering and Fluid Mechanics School of Engineering(UP V/EHU)University of the Basque CountryPlaza lngeniero Torres Quevedo 148013 BilbaoBizkaiaSpain

The shortfin mako shark(Isurus oxyrinchus)is one of the fastest marine fishes,reaching speeds of up to 70 km·h^-*** speed is related to the skin surface design composed of dermal *** vary in size and shape according to placement on the body and minimize turbulence around the *** objective of this study is to analyze the interaction between seawater flow and denticles on the dorsal ***-resolution microscopy(scanning electron microscopy and confocal microscopy)were used to measure defined parts of the dermal *** measurements,along with ratios based on length-to-width define three morphologies(rounded,semi-rounded,long)that were 3D *** fluid dynamics simulated fluid passage over reconstructed denticles and describe hy-drodynamic efficiency under different *** increase in angle of inclination produced a relevant increase in the drag coefficient,especially for high velocity *** lowest drag coefficient values were found in long and semi-rounded,followed by rounded *** hydrodynamic behavior of shark skin demonstrates a relation to the morphological characteristics of dermal denticles on the dorsal *** is concluded that the best hydroefficiency relies on the rounded morphology and may serve to design hydrodynamically efficient surfaces or manmade assemblies.

关键词： denticles hydrodynamic mako shark computational fluid dynamics

Contamination of Water for Domestic Use and Human Consumption by Heavy Metals Derived from Mining Activity in Parral, Chihuahua, Mexico

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Journal of Environmental Science and Engineering(A) 2012年第3期1卷 286-294页

作者： Luis Miguel Rodriguez Ever torres Luis Saenz maria del Carmen Avitia Guillermo Rodriguez Eduardo Herrera Carmen Julia Navarro Guillermo Gonzalez Luis Lozoya Damaris Acosta Technological Institute of Parral Parral Chihuahua 33850 Mexico Research Center for Advanced Materials （CIMA V） Chihuahua 31109 Mexico

Research was done with the objective of evaluating the quality of water supplied to the potable water system in Hidalgo Del Parral, which comes from two main supply sources： wells from ＂Valle del Verano＂, which provide water to the east side of the city, and the Water Treatment Plant, which receives water from different mines and supplies the west side of the city. When this plant is overcome on its capacity of treatment, a part of the water from the mines is fed directly to the northwest part of the city. The metals lead （Pb）, chromium （Cr）, cadmium （Cd）, zinc （Zn）, and arsenic （As） were analyzed by atomic absorption （AA） technique, based on the United States Environmental Protection Agency （EPA） Method 7000B （Revision 2, February 2007）. The digestion process was done according to the guidelines established in Method NMX-AA-051-SCFI-2001, Analysis of Water-Determination of Metals by Atomic Absorption, developed by the National Standardization Technical Committee for Environmental Protection （Mexico）. The samples were collected from the following points： 13 wells and 2 re-pumping stations of ＂Valle del Verano＂, the inlet and outlet of the Water Treatment Plant, and domestic faucets. The east side of the city, supplied by the wells of ＂Valle del Verano＂, is metal-pollution free. The water that comes from the mines contains high concentrations of As, Zn, Cd and Pb, with levels that can get to 0.12, 32.6, 0.26 and 3.5 mg/L, respectively. This water pollution generated by mining can be concluded from the high levels found in the domestic samples in which, for several points, the concentrations exceed the parameters set by the current guideline. According to the results, it is vital to set a plan of remediation for the water that comes from the mines, because there is a great risk for health in the consumotion of this water.

关键词： Heavy metals mining water contamination.

Effects of Microselective Neurotomy on Focal Spasticity and Description of the Surgical Technique

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Open Journal of Modern Neurosurgery 2021年第3期11卷 144-156页

作者： Sergio A. Sacchettoni Joyce Bolaños Napoleon torres Juan P. Abud Penelope Mantilla Luis Salazar maria-Fernanda Vargas Julio Rodriguez-Wulff Randy Balladares Ricardo Gomez Service of Neurosurgery Hospital Vargas de Caracas Caracas Venezuela Service of Neurosurgery Centro Medico Docente La Trinidad Caracas Venezuela Neurological Unit “NeuroQX” Centro Médico Integra Caracas Venezuela Université Grenoble Alpes Grenoble France

We studied the microselective neurotomy (MSN) and its advantages to alleviate disabling spasticity. The best indication for MSN is focal spasticity. We performed 298 MSN, 87 nerves on the upper limb, 211 nerves on the lower limb) in 68 patients. The initial causes were: stroke, cranial trauma, postoperative complications and multiple sclerosis. MSN procedures were performed on the median nerve (n = 40) for wrist and finger flexion;musculo-cutaneus nerve (n = 38) for elbow flexion;ulnaris nerve (n = 9) for cubital deviation of the hand;gastrocnemius nerve (n = 98) and soleus nerve (n = 49) for equinus foot, tibial posterior nerve (n = 45) for varus foot, and fascicles (or bundles) of the flexor digitorum for “claw” toes (n = 19). The main preoperative test to identify the responsible nerve was a neuromuscular block with local anesthesia (lidocaine or bupivacaine) injected into the site of the nerve connecting the spastic muscle. During surgery, the identified nerve was exposed and its epineurium opened. Nerve bundles were teased apart into individual rootlets and a number of rootlets cut were previously planned, according to the spasticity. Follow-up was performed for up to 10 years, with a mean period of 29 months. Results demonstrated a reduction of limb spasticity of 2 to 3 points: modified Ashworth scale (MAS). Pain and clonus were also diminished in the affected limb. In some cases, voluntary movement was once again possible. MSN is a useful alternative in those cases of focal spasticity where physiotherapy and nerve block with botulinum toxin or phenol no longer produce satisfactory results.

关键词： Focal Spasticity Microselective Neurotomy Neurosurgery of Spasticity

Polymorphism AGT2(rs4762)is involved in the development of dermatologic events:Proof-of-concept in hepatocellular carcinoma patients treated with sorafenib

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World Journal of Hepatology 2022年第7期14卷 1438-1458页

作者： Víctor Sapena Massimo Iavarone Loreto Boix Floriana Facchetti maria Guarino Marco Sanduzzi Zamparelli Alessandro Granito Esther Samper Mario Scartozzi Josep Corominas Giorgia Marisi Alba Díaz Andrea Casadei-Gardini Laura Gramantieri Pietro Lampertico Filomena Morisco Ferran torres Jordi Bruix María Reig Barcelona Clinic Liver Cancer Group Liver UnitHospital Clínic de BarcelonaInstitut d'Investigacions Biomèdiques August Pi SunyerCentro de Investigación Biomédica en Red Enfermedades Hepáticas y DigestivasBarcelona 08036Spain Universidad de Barcelona Barcelona 08036Spain Division of Gastroenterology and Hepatology Foundation Istituto di Ricovero e Cura a Carattere Scientifico di Natura Pubblica Ca’Granda Ospedale Maggiore PoliclinicoMilano 20122Italy Department of Clinical Medicine and Surgery Gastroenterology UnitUniversity of Naples Federico IINaples 80131Italy Gastroenterology and Hepatology Unit Fondazione Istituto di Ricovero e Cura a Carattere Scientifico di Natura Pubblica CàGranda Ospedale Maggiore PoliclinicoUniversity of MilanMilan 20100Italy Department of Clinical Medicine and Surgery Gastroenterology UnitUniversity of Naples"Federico II"Napoli 80100Italy Department of Clinical Medicine and Surgery Gastroenterology and HepatologyFederico II University of NaplesNaples 80131Italy Division of Internal Medicine Hepatobiliary and Immunoallergic DiseasesIstituto di Ricovero e Cura a Carattere Scientifico di Natura Pubblica Azienda Ospedaliero-Universitaria di BolognaBologna 40139Italy Department of Medical and Surgical Sciences University of BolognaBologna 40139Italy Department of Medical Oncology University of CagliariCagliari 45698Italy Biosciences Laboratory Istituto di Ricovero e Cura a Carattere Scientifico di Natura PubblicaIstituto Romagnolo per lo Studio dei Tumori“Dino Amadori”Meldola 47014Italy Department of Pathology Hospital Clínic de BarcelonaUniversitat de BarcelonaBarcelona 08036Spain School of Medicine Vita-Salute San Raffaele UniversityMilan 20132Italy Unit of Oncology UniversitàVita-SaluteIstituto di Ricovero e Cura a Carattere Scientifico di Natura Pubblica-San Raffaele Scientific InstituteMilan 20132Italy Division of Internal Medicine Hepatobiliary and Immunoallergic DiseasesIstituto di Ricovero e Cura a Carattere Scientifico di Natura Pubblica Aziend

BACKGROUND Dermatologic adverse events(DAEs)are associated with a better outcome in patients with hepatocellular carcinoma(HCC)irrespective of the therapeutic agent *** exact mechanisms associated with the development of DAEs are unknown although several studies point to direct toxicity of tyrosine kinase inhibitors(TKIs)to the skin or an immune-mediated reaction triggered by the oncologic *** is the case in other conditions,individual genetic variants may partially explain a higher risk of *** To evaluate the contribution of several gene variants to the risk of developing DAEs in HCC patients treated with *** We first analyzed 27 single-nucleotide polymorphisms(SNPs)from 12 genes selected as potential predictors of adverse event(AE)development in HCC patients treated with sorafenib[Barcelona Clinic Liver Cancer 1(BCLC1)cohort].Three additional cohorts were analyzed for AGT1(rs699)and AGT2(rs4762)polymorphisms-initially identified as predictors of DAEs:BCLC2(n=79),Northern Italy(n=221)and Naples(n=69)cohorts,*** relation between SNPs and DAEs and death were assessed by univariate and multivariate Cox regression models,and presented with hazard ratios and their 95%confidence intervals(95%CI).RESULTS The BCLC1 cohort showed that patients with arterial hypertension(AHT)(HR=1.61;P value=0.007)and/or AGT SNPs had an increased risk of ***,AGT2(rs4762)AA genotype was found to be linked to a statistically significant increased probability of DAEs(HR=5.97;P value=0.0201,AA vs GG)in the Northern Italy cohort by multivariate analysis adjusted for BCLC stage,ECOG-PS,diabetes and *** value of this genetic marker was externally validated in the cohort combining the BCLC1,BCLC2 and Naples cohorts[HR=3.12(95%CI:1.2-8.14),P value=0.0199,AGT2(rs4762)AA vs AG genotype and HR=2.73(95%CI:1.18-6.32)P value=0.0188,AGT2(rs4762)AA vs GG genotype].None of the other gene variants tested were found to be associated with the risk of D

关键词： HCC Early DAE Single-nucleotide polymorphisms AGT1(rs699) AGT2(rs4762),Tyrosine kinase inhibitors