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Aquaglyceroporins but not orthodox aquaporins are involved in the cryotolerance of pig spermatozoa

Journal of Animal Science and Biotechnology 2020年第1期11卷 20-31页

作者： Ariadna Delgado-Bermúdez Marc Llavanera Leira Fernández-Bastit Sandra Recuero Yentel Mateo-Otero Sergi Bonet isabel Barranco Beatriz Fernández-Fuertes Marc Yeste Biotechnology of Animal and Human Reproduction(TechnoSperm) Unit of Cell BiologyDepartment of BiologyFaculty of SciencesInstitute of Food and Agricultural TechnologyUniversity of GironaC/Maria Aurèlia Campany69Campus MontiliviE-17003 GironaSpain

Background:Aquaporins(AQPs)are a family of transmembrane water channels that includes orthodox AQPs,aquaglyceroporins(GLPs)and super ***3,AQP7,AQP9 and AQP11 have been identified in boar sperm,and they are crucial for sperm maturation and *** exchange is an important event in cryopreservation,which is the most efficient method for long-term storage of ***,the freezethaw process leads to sperm damage and a loss of fertilizing *** that the quality of frozenthawed sperm partially depends on the regulation of osmolality variations during this process,AQPs might play a crucial role in boar semen *** this context,the aim of this study was to unravel the functional relevance of the different groups of AQPs for boar sperm cryotolerance through three different ***:Inhibition of different groups of AQPs was found to have different effects on boar sperm *** the use of 1,3-propanediol(PDO),an inhibitor of orthodox AQPs and GLPs,decreased total motility(P<0.05),it increased post-thaw sperm viability,lowered membrane lipid disorder and increased mitochondrial membrane potential(MMP)(P<0.05).When acetazolamide(AC)was used as an inhibitor of orthodox AQPs,the effects on post-thaw sperm quality were restricted to a mild increase in MMP in the presence of the intermediate concentration at 30 min post-thaw and an increase in superoxide levels(P<0.05).Finally,the addition of phloretin(PHL),a GLP inhibitor,had detrimental effects on post-thaw total and progressive sperm motilities,viability and lipid membrane disorder(P<0.05).Conclusions:The effects of the different inhibitors suggest that GLPs rather than orthodox AQPs are relevant for boar sperm ***,the positive effect of PDO on sperm quality suggests a cryoprotective role for this molecule.

关键词： Acetazolamide Aquaporins Boar Phloretin Propanediol Sperm

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Anemia in patients with high-risk acute coronary syndromes admitted to Intensive Cardiac Care Units

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Journal of Geriatric Cardiology 2020年第1期17卷 35-42页

作者： Victoria Lorente Jaime Aboal Cosme Garcia Jordi Sans-Rosello Antonia Sambola Rut Andrea Carlos Tomas Gil Bonet David Vinas Nabil el Ouaddi Santiago Montero Javier Cantalapiedra Margarida Pujol isabel Hernandez maria Perez-Rodriguez Isaac Llao Jose C Sanchez-Salado Miquel Gual Albert Ariza-Sole 无 Hospital Universitari de Bellvitge L’Hospitalet de LlobregatBarcelonaSpain Hospital Unversitari Josep Trueta GironaSpain Hospital Universitari Germans Trias i Pujol Badalona BarcelonaSpain Hospital de la Santa Creu i Sant Pau Instituto de Investigación Biomedica IIB Sant PauUniversitat Autonoma de Barcelona(UAB)BarcelonaSpain Hospital Universitari de la Vall d’Hebron BarcelonaSpain Hospital Clinic i Provicial BarcelonaSpain Hospital Arnau de Vilanova LleidaSpain Hospital Joan XXIII TarragonaSpain the Grup de Treball de Cures Agudes Cardiologiques de la Societat Catalana de Cardiologia

Background Little information exists about the role of anemia in patients with acute coronary syndromes(ACS)admitted to Intensive Cardiac Care Units(ICCU).The aim of this study was to assess the prevalence of anemia and its impact on management and outcomes in this clinical *** All consecutive patients admitted to eight different ICCUs with diagnosis of non-ST segment elevation ACS(NSTEACS)were prospectively *** was defined as hemoglobin<130 g/L in men and<120 g/L in *** association between anemia and mortality or readmission at six months was assessed by the Cox regression *** A total of 629 patients were *** age was 66.6 years.A total of 197 patients(31.3%)had *** angiography was performed in most patients(96.2%).Patients with anemia were significantly older,with a higher prevalence of comorbidities,poorer left ventricle ejection fraction and higher GRACE score *** with anemia underwent less often coronary angiography,but underwent more often intraaortic counterpulsation,non-invasive mechanical ventilation and renal replacement *** ICCU and hospital stay were significantly longer in patients with *** the incidence of mortality(HR=3.36,95%CI:1.43–7.85,P=0.001)and the incidence of mortality/readmission were significantly higher in patients with anemia(HR=2.80,95%CI:2.03–3.86,P=0.001).After adjusting for confounders,the association between anemia and mortality/readmission remained significant(P=0.031).Conclusions Almost one of three NSTEACS patients admitted to ICCU had *** patients underwent coronary *** was independently associated to poorer outcomes at 6 months.

关键词： Acute coronary syndromes Anemia Intensive cardiac care units Prognosis

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The human olfactory system in two proteinopathies: Alzheimer’s and Parkinson’s diseases

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Translational Neurodegeneration 2020年第2期9卷 270-289页

作者： isabel Ubeda-Bañon Daniel Saiz-Sanchez Alicia Flores-Cuadrado Ernesto Rioja-Corroto Melania Gonzalez-Rodriguez Sandra Villar-Conde Veronica Astillero-Lopez Juan Pablo Cabello-de la Rosa maria Jose Gallardo-Alcañiz Julia Vaamonde-Gamo Fernanda Relea-Calatayud Lucia Gonzalez-Lopez Alicia Mohedano-Moriano Alberto Rabano Alino Martinez-Marcos Neuroplasticity and Neurodegeneration Laboratory Ciudad Real Medical SchoolCRIBUniversity of Castilla-La Mancha13005Ciudad RealSpain Neurology Service Ciudad Real General University Hospital13005Ciudad RealSpain Pathology Service Ciudad Real General University Hospital13005Ciudad RealSpain Faculty of Health Sciences University of Castilla-La ManchaTalavera de la ReinaSpain Neuropathology Department and Tissue Bank CIEN FoundationCarlos III Health InstituteMadridSpain

Alzheimer’s and Parkinson’s diseases are the most prevalent neurodegenerative *** etiologies are idiopathic,and treatments are symptomatic and orientated towards cognitive or motor ***,both are proteinopathies with pathological aggregates(plaques of amyloid-β peptide and neurofibrillary tangles of tau protein in Alzheimer’s disease,and Lewy bodies mostly composed of α-synuclein in Parkinson’s disease).These deposits appear in the nervous system in a predictable and accumulative sequence with six neuropathological *** disorders present a long prodromal period,characterized by preclinical signs including ***,the olfactory system,particularly the anterior olfactory nucleus,is initially and preferentially affected by the *** atrophy revealed by magnetic resonance imaging must be complemented by histological analyses to ascertain whether neuronal and/or glial loss or neuropil remodeling are responsible for volumetric *** has been proposed that these proteinopathies could act in a prion-like manner in which a misfolded protein would be able to force native proteins into pathogenic folding(seeding),which then propagates through neurons and glia(spreading).Existing data have been examined to establish why some neuronal populations are vulnerable while others are resistant to pathology and to what extent glia prevent and/or facilitate proteinopathy *** approaches reveal a number of hubs in the olfactory system(anterior olfactory nucleus,olfactory entorhinal cortex and cortical amygdala)that are key interconnectors with the main hubs(the entorhinal–hippocampal–cortical and amygdala–dorsal motor vagal nucleus)of network dysfunction in Alzheimer’s and Parkinson’s diseases.

关键词： α-Synuclein Amyloid-β Anterior olfactory nucleus Hyposmia Tau protein

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Rare germline copy number variants in colorectal cancer predisposition characterized by exome sequencing analysis

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Journal of Genetics and Genomics 2018年第1期45卷 41-45页

作者： Sebastia Franch-Exposito Clara Esteban-Jurado Pilar Garre isabel Quintanilla Saray Duran-Sanchon Marcos Diaz-Gay Laia Bonjoch Miriam Cuatrecasas Esther Samper Jenifer Munoz Teresa Ocana Sabela Carballal maria Lopez-Ceron Antoni Castells maria Vila-Casadesus Sophia Derdak Steven Laurie Sergi Beltran Jaime carvajal Luis Bujanda Clara Ruiz-Ponte Jordi Camps Meritxell Gironella Juan Jose Lozano Francesc Balaguer Joaquin Cubiella Trinidad Caldes Sergi Castellvi-Bel Gastroenterology Department Hospital Clinic de Barcelona August Pi i Sunyer Biomedical Research Institute CIBER of Hepatic and Digestive Diseases University of Barcelona Barcelona 08036 Spain Molecular Oncology Laboratory Hospital Clinico San Carlos Health Research Institute of the Hospital Clinico San Carlos Madrid 28040 Spain Department of Pathology Hospital Clinic de Barcelona Barcelona 08036 Spain EPICOLON consortium Bioinformatics Platform CIBER of Hepatic and Digestive Diseases Barcelona 08036 Spain National Center of Genomic Analysis Science Park of Barcelona Barcelona 08028 Spain Andalusian Developmental Biology Institute CSIC-Pablo de Olavide University-Andalusian Regional Government SeviUa 41013 Spain Gastroenterology Department Hospital Donostia-Biodonostia Institute CIBER of Hepatic and Digestive Diseases University of the Basque Country (UPV/EHU) San Sebastian 20080 Spain Galician Public Foundation of Genomic Medicine (FPGMX) CIBER of Rare Diseases Genomics Medicine Group Hospital Clinico Universitario University of Santiago de Compostela Santiago de Cornpostela 15706 Spain Castroenterology Department Complexo Hospitalario Universitario de Ourense Ourense Biomedical Research Institute Ourense 32005 Spain

Colorectal cancer （CRC） is one of the most common neoplasms and an important cause of mortality worldwide （http：//globocan. ***]）. Approximately 35% of the variation in CRC susceptibility is likely due to heritable factors （Lichtenstein et al., 2000}. Genetic variations in the human genome include single nucleotide variants （SNVs）, short insertions and deletions, and larger structural variants resulting in gain or loss of genomic DNA larger than 1 kb, such as copy number variants （CNVs）. Leaving aside the importance of CNVs in sporadic tumor development, these variants can also be present in the germline DNA of healthy individuals from the general population and be considered polymorphic.

关键词： WHOLE-EXOME GENE

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Neurocognitive Disorders in Patients with HIV Infection with Virologic Suppression for More than 10 Years

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World Journal of AIDS 2017年第1期7卷 59-66页

作者： André Filipe dos Santos-Silva Joana Margarida Almeida Alves isabel Ramos maria del Cármen Piñ eiro-Calvo Cláudia Sousa maria do Rosário Serrã o António Carlos Eugénio Megre Sarmento Infectious Diseases Department S&atilde o Joã o Hospital Centre Oporto Portugal Faculty of Medicine of the University of Oporto Oporto Portugal Psychiatry and Mental Health Department S&atilde o Joã o Hospital Centre Oporto Portugal Neurology Department S&atilde o Joã o Hospital Centre Oporto Portugal

Background: HIV-associated neurocognitive disorder (HAND) may appear in patients with viral and immunological response to treatment and remain unnoticed during the initial stage of the infection. The goal of this study is to evaluate the development and/or progression of HAND in patients with undetectable viral load for more than ten years. Methods: We included adult HIV-infected patients who were under antiretroviral treatment and had undetectable plasma viral load for more than ten years (blips were included). These patients had already been subjected to neurocognitive evaluation five years previously. Demographic, clinical and analytical data were analysed. For the neurocognitive evaluation, the WAIS-III subtests (digit symbol coding and symbol search), trail making test (TMT) A and B, Stroop test and categorical verbal fluency (animals) tests were used. SPSS??version 22.0 for Windows was used for statistical analysis. Results: In this re-evaluation, performed 4.76 (±1.82) years after the first one, 9 (36%) patients showed deficits in processing speed (WAIS-III and TMT A), 8 (32%) executive function (TMT B and Stroop) and 12 (48%) verbal fluency. There were significant statistical differences between the past and current executive function tests (p = 0.029 and p = 0.01), highlighting worsening of deficits. No differences were found for the other tests. No association was found between deficit progression and the studied variables. Conclusions: Although not generally noticed on regular appointments, in this small population, worsening of executive function deficits (mental flexibility and divided attention) was found. Classical risk factors for HAND did not appear to interfere in its progression. Speed of information processing and categorical verbal fluency remained stable.

关键词： HIV HAND Dementia Impairment

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Inflammatory pseudotumour of the spleen associated with splenic tuberculosis

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World Journal of Gastrointestinal Surgery 2014年第12期6卷 248-252页

作者： maria isabel Prieto-Nieto Juan Pedro Pérez-Robledo Beatriz Díaz-San Andrés Manuel Nistal José Antonio Rodríguez-Montes Department of General and Digestive Surgery La Paz University Hospital Paseo de la Castellana 28046 Madrid Spain Department of Pathology La Paz University Hospital Paseo de la Castellana 28046 Madrid Spain

Inflammatory pseudotumor(IPT) of the spleen is an uncommon entity with an uncertain aetiology. Inflammatory pseudotumors present diagnostic difficulties because the clinical and radiological findings tend to suggest a malignancy. The symptoms include weight loss, fever, and abdominal pain. Most cases of splenic IPT present solitary relatively large well circumscribed masses on imaging. The diagnosis in the majority of the cases is made after histopathologic study of splenectomy specimens. The IPTs that occur in the spleen and liver are typically associated with Epstein-Barr virus. Thirtyseven percent of all new cases of active tuberculosis infection are extrapulmonary tuberculosis and tuberculous lymphadenitis the most commonly occurring form of extrapulmonary tuberculosis. We report the case of an inflammatory pseudotumor of the spleen associated with splenic tuberculous lymphadenitis in a 50-year-old female patient who was preoperatively diagnosed with a malignant spleen tumour based on her history of breast of carcinoma.

关键词： Inflammatory pseudotumour Spleen Splenic lymphadenitis Splenectomy Splenic tuberculosis

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Molecular Analyses of Early-Onset Gastric Cancer in Brazilian Patients: <i>TP</i>53 Mutations, Cadherin-Catenin and Mucins Proteins Expression

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Journal of Cancer Therapy 2013年第1期4卷 33-42页

作者： Edaise maria da Silva J. H. T. G. Fregnani Ghyslaine Martel Wilson Luiz Costa Jr. Felipe José Fernández Coimbra maria isabel Waddington Achatz Pierre Hainaut Fernando Augusto Soares Department of Anatomic Pathology Hospital AC Camargo Sao Paulo Brazil Research and Teaching Institute Barretos Cancer Hospital Barretos Brazil International Agency for Research on Cancer Molecular Carcinogenesis Group Lyon France Department of Abdominal Surgery Hospital AC Camargo Sao Paulo Brazil Department of Oncogenetics Hospital AC Camargo Sao Paulo Brazil.

Early gastric carcinomas may develop with a molecular profile differing from sporadic carcinomas occurring at a later age. In this study, we analyzed a retrospective series of 88 patients with gastric adenocarcinoma diagnosed before the age of 45 years for the presence of TP53 mutations, clinicopathological features and immunohistochemistry to evaluate the expression of markers considered to be important in gastric carcinogenesis (E-cadherin, β-catenin, MUC1, MUC2, MUC5AC, MUC6 and p53). The majority of proportion of tumors were diffuse-type (70%) and advanced stage (56%). Familial history of cancer was positive in 21% of the cases. There was a significant association between altered expression of E-cadherin and β-catenin, and between p53 expression and perineural invasion. TP53 mutations were detected in 14.5% of evaluated cases, including a germline mutation (p.R337H) in a 12-year old patient. Overall survival analysis showed significant differences in relation with tumor stage and histopathology. The evaluated biomarkers did not present prognostic value in non-exploratory multivariate analyses. The low frequency of TP53 mutations in this series suggests these alterations are not a major molecular event in gastric cancer occurring at early age, although the identification of a case with germline p.R337H mutation is consistent with the hypothesis that a small proportion of early, apparently sporadic gastric cancer, may be associated with widespread Brazilian founder mutations. Further studies are needed to evaluate the prognostic significance of markers for specific groups of patients according to tumor histology and familial history.

关键词： Early-Onset Gastric Cancer Young Patients Cellular Adhesion TP53 Mutations

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Serum proinflammatory cytokines and nutritional status in pediatric chronic liver disease

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世界胃肠病学杂志：英文版 2015年第29期21卷 8927-8934页

作者： Daniele Santetti maria Inês de Albuquerque Wilasco Cristina Toscani Leal Dornelles isabel Cristina Ribas Werlang Fernanda Urruth Fontella Carlos Oscar Kieling Jorge Luiz dos Santos Sandra maria Goncalves Vieira Helena Ayako Sueno Goldani Post-Graduate Program of Child and Adolescent Health Faculdade de MedicinaUniversidade Federal do Rio Grande do SulPorto Alegre Nutrition Service Hospital de Clínicas de Porto AlegreUniversidade Federal do Rio Grande do SulPorto Alegre Laboratory of Translational Pediatrics-NESCA Hospital de Clínicas de Porto AlegreUniversidade Federal do Rio Grande do SulPorto Alegre Pediatric Hepatology Unit Hospital de Clínicas de Porto AlegreUniversidade Federal do Rio Grande do SulPorto Alegre Pediatric Gastroenterology Unit Hospital de Clínicas de Porto Alegre and Post-Graduate Program of Child and Adolescent HealthFaculdade de MedicinaUniversidade Federal do Rio Grande do SulPorto Alegre

AIM: To evaluate the nutritional status and its association with proinflammatory cytokines in children with chronic liver ***: We performed a cross-sectional study with 43 children and adolescents, aged 0 to 17 years, diagnosed with chronic liver disease. All patients regularly attended the Pediatric Hepatology Unit and were under nutritional follow up. The exclusion criteria were fever from any etiology at the time of enrollment, inborn errors of the metabolism and any chronic illness. The severity of liver disease was assessed by Child-Pugh, Model for End-stage Liver Disease(MELD) and Pediatric End Stage Liver Disease(PELD) scores. Anthropometric parameters were height/age, body mass index/age and triceps skinfold/age according to World Health Organization standards. The cutoff points for nutritional status were risk of malnutrition(Z-score <-1.00) and malnutrition(Z-score <-2.00). Interleukin-1β(IL-1β), IL-6 and tumor necrosis factor-α levels were assessed by commercial ELISA kits. For multivariate analysis, linear regression was applied to assess the association between cytokine levels, disease severity and nutritional status. RESULTS: The median(25th-75 th centile) age of the study population was 60(17-116)-mo-old, and 53.5% were female. Biliary atresia was the main cause of chronic liver disease(72%). With respect to Child-Pugh score, cirrhotic patients were distributed as follows: 57.1% Child-Pugh A, a mild presentation of the disease, 34.3% Child-Pugh B, a moderate stage of cirrhosis and 8.6% Child-Pugh C, were considered severe cases. PELD and MELD scores were only above the cutoff point in 5 cases. IL-6 values were increased in patients at nutritional risk(34.9%) compared with those who were well-nourished [7.12(0.58-34.23) pg/m L vs 1.63(0.53-3.43) pg/m L; P = 0.02], correlating inversely with triceps skinfold-for-age z-score(rs =-0.61; P < 0.001). IL-6 levels were associated with liver disease severity assessed by Child-Pugh score(P = 0.001).

关键词： Cytokines Interleukin-6 Malnutrition Cirrhosis Child

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The Unexpected Capability of Melanin to Split the Water Molecule and the Alzheimer’s Disease

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Neuroscience & Medicine 2011年第3期2卷 217-221页

作者： maria del Carmen Arias-Esparza Ruth isabel Solís Arias Paola Eugenia Solís Arias Martha Patricia Solís Arias A. Solís-Herrera 不详

We began a study about the three main causes of blindness in 1990, because their incidence and prevalence have not changed in the last forty years. Twelve years later we concluded that the main source of energy for the human retina is water, not ATP. And this is also true for the entire human body. Water is the main source of energy. The amazing capability of eukaryotic cells to break or dissociate the water molecule was unsuspected to us because it takes 2000℃ degrees to dissociate water in a laboratory environment, and until today, it was believed that only plants were capable of accomplishing this. Photosynthesis occurs in humans as it does in plants. The water that we drink every day is not just to wash away detritus and toxins;it is not just a cleaner, nor a simple solvent. When our body dissociates the water molecule, cells are able to get their energy from Hydrogen (Hydrogen is the energy carrier that Nature uses the most). Water is our main source of energy. If our body couldn’t acquire energy from water, we would need to eat between 50 - 170 kg (110 - 374 lbs) daily. In any system, when a generalized failure occurs, we must suspect energy first. Parkinson and Alzheimer’s Disease are examples of a generalized failure. That explains why it is not uncommon that patients improve dramatically with pharmacological stimulation of the human photosynthesis process. Recall that the brain needs energy not only to grow or to perform its functions, but also to preserve its form and shape. The best energy for human cells is Hydrogen.

关键词： Melanin Water Dissociation Energy Glucose Alzheimer Biomass

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HIV screening and retention in care in people who use drugs in Madrid, Spain: a prospective study

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Infectious Diseases of Poverty 2021年第4期10卷 77-85页

作者： Pablo Ryan Jorge Valencia Guillermo Cuevas Jesus Troya Juan Torres-Macho maria Jose Munoz-Gomez Nuria Munoz-Rivas isabel Canorea Sonia Vazquez-Moron Salvador Resino Hospital Universitario Infanta Leonor MadridSpain Universidad Complute nse de Madrid(UCM) MadridSpain Instituto de Investigacion Sanitaria Gregorio Maranon(liSGM) MadridSpain Unidad de Reduccion de Darios"SMASD"Madrid Spain Unidad de Infeccion Viral e Inmunidad Centro Nacional de MicrobiologiaInstituto de Salud Carlos IIICarretera Majada-honda-PozueloKm 2.228220 MajadahondaMadridSpain

Background::The burden of human immunodeficiency virus(HIV)infection in people who use drugs(PWUD)is *** aimed to screen HIV infection among PWUD and describe their retention in HIV ***,we also screen for hepatitis C virus(HCV)infection among HIV-seropositive PWUD and describe their linkage to ***::We conducted a prospective study in 529 PWUD who visited the"Ca?ada Real Galiana"(Madrid,Spain).The study period was from June 1,2017,to May 31,*** diagnosis was performed with a rapid antibody screening test at the point-of-care(POC)and HCV diagnosis with immunoassay and PCR tests on dried blood spot(DBS)in a central *** PWUD were referred to the *** used the Chi-square or Fisher’s exact tests,as appropriate,to compare rates between ***::Thirty-five(6.6%)participants were positive HIV antibodies,but 34 reported previous HIV diagnoses,and 27(76%)had prior antiretroviral *** patients with a positive HIV antibody test,we also found a higher prevalence of homeless(P<0.001)and injection drug use(PWID)(P<0.001),and more decades of drug use(P=0.002).All participants received HIV test results at the *** the 35 HIV positives,28(80%)were retained in HIV medical care at the end of the HIV screening study(2018),and only 22(62.9%)at the end of ***,12/35(34.3%)were positive for the HCV RNA *** the latter,10/12(83.3%)were contacted to deliver the HCV results test(delivery time of 19 days),5/12(41.7%)had an appointment and were attended at the hospital and started HCV therapy,and only 4/12(33.3%)cleared ***::We found almost no new HIV-infected PWUD,but their cascade of HIV care was low and remains a challenge in this population at *** high frequency of active hepatitis C in HIV-infected PWUD reflects the need for HCV screening and reinforcing the link to care.

关键词： HIV Point-of-care Screening People who use drugs Retention in care Hepatitis C Dried blood spot Antiviral treatment

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