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Energy Signaling in the Regulation of Gene Expression during Stress

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Molecular Plant 2010年第2期3卷 300-313页

作者： elena Baena-gonzalez Instituto Gulbenkian de Ciencia Rua da Quinta Grande 6 2780-156 Oeiras Portugal

Maintenance of homeostasis is pivotal to all forms of life. In the case of plants, homeostasis is constantly threatened by the inability to escape environmental fluctuations, and therefore sensitive mechanisms must have evolved to allow rapid perception of environmental cues and concomitant modification of growth and developmental patterns for adaptation and survival. Re-establishment of homeostasis in response to environmental perturbations requires reprog- ramming of metabolism and gene expression to shunt energy sources from growth-related biosynthetic processes to defense, acclimation, and, ultimately, adaptation. Failure to mount an initial ＇emergency＇ response may result in nutrient deprivation and irreversible senescence and cell death. Early signaling events largely determine the capacity of plants to orchestrate a successful adaptive response. Early events, on the other hand, are likely to be shared by different conditions through the generation of similar signals and before more specific responses are elaborated. Recent studies lend credence to this hypothesis, underpinning the importance of a shared energy signal in the transcriptional response to various types of stress. Energy deficiency is associated with most environmental perturbations due to their direct or indirect deleterious impact on photosynthesis and/or respiration. Several systems are known to have evolved for monitoring the available resources and triggering metabolic, growth, and developmental decisions accordingly. In doing so, energy-sensing systems regulate gene expression at multiple levels to allow flexibility in the diversity and the kinetics of the stress response.

关键词： Abiotic/environmental stress metabolic regulation cell signaling gene expression post-transcriptionalcontrol transcriptional control and transcription factors.

Healthy diet,depression and quality of life:A narrative review of biological mechanisms and primary prevention opportunities

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World Journal of Psychiatry 2021年第11期11卷 997-1016页

作者： Octavio Pano elena H Martínez-Lapiscina Carmen Sayón-Orea Miguel Angel Martinez-gonzalez Jose Alfredo Martinez Almudena Sanchez-Villegas Preventive Medicine and Public Health University of NavarrePamplona 31008Spain Department of Neurology Center of Neuroimmunology Hospital Clinic of BarcelonaInstitut d’Investigacions Biomèdiques August Pi SunyerBarcelona 08036Spain Department of Preventive Medicine and Public Health University of NavarraPamplona 31008Spain IdiSNA Navarra Institute for Health ResearchPamplona 31008Spain Department of Public Health Navarra Institute of Public Health and EpidemiologyPamplona 31003Spain CIBER Pathophysiology of Obesity and Nutrition Institute of Health Carlos IIIMadrid 28049Spain Department of Nutrition Harvard T.H.Chan School of Public HealthBostonMA 02115United States Department of Food Sciences and Physiology University of NavarrePamplona 31008Spain Precision Nutrition and Cardiometabolic Health Program IMDEA Food InstituteMadrid 28049Spain Department of Clinical Sciences University of Las Palmas Gran CanariaLas Palmas Gran Canaria 35080Spain

Unipolar depressive disorder(UDD)affects more than 264 million people worldwide and was projected well before the severe acute respiratory syndrome coronavirus 2 pandemic to be the leading cause of disability-adjusted life years lost in *** is imperative for leading economies to implement preventive strategies targeted towards UDD,given consistent policies are currently *** established similarities between the aetiological hypotheses of depression and cardiometabolic diseases are shifting paradigms within this *** is believed that dietary practices could potentially reduce the incidence of depression;similar to their effects on ***,the aim of this review was to compile current evidence on healthy dietary patterns as suitable contributors towards primary prevention strategies against *** of the well-known biological mechanisms behind depression have been positively associated with healthful diets and dietary patterns to varying ***,a common factor of UDD is the production and overall effects of inflammatory cytokines,such as interleukin-6,tumor necrosis factor-α,and Creactive *** compounds have been associated with depressive symptoms,disturbances in neuroendocrine function,leaky gut,monoamine activity and brain function,while also being key factors in the development of cardiometabolic *** Mediterranean diet(MD)in particular,is well supported by first-level evidence regarding its preventive qualities against metabolic and cardiovascular diseases and thus considered a model for healthy eating by various *** one of the few clinical trials investigating these associations,the PREDIMED trial,individuals with diabetes assigned to a MD supplemented with mixed tree nuts experienced a 41%relative risk reduction for developing ***,there is a need to include health related quality of life as an indicator of physical and mental well-being,considering its putative associations

关键词： Depression Nutrition Mediterranean Quality of life Primary prevention Epidemiology

Function, kinetic properties, crystallization, and regulation of microbial malate dehydrogenase

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2016年第4期17卷 247-261页

作者： Toshiko TAKAHASHI-INIGUEZ Nelly ABURTO-RODRIGUEZ Ana Laura VILCHIS-gonzalez Maria elena FLORES Departamento de Biologla Molecular y Biotecnologia lnstituto de Investigaciones BiomddicasUniversidad Nacional Autonoma de MexicoMexicoD.F.04510Mexico

Malate dehydrogenase （MDH） is an enzyme widely distributed among living organisms and is a key protein in the central oxidative pathway. It catalyzes the interconversion between malate and oxaloacetate using NAD＋ or NADP＊ as a cofactor. Surprisingly, this enzyme has been extensively studied in eukaryotes but there are few reports about this enzyme in prokaryotes. It is necessary to review the relevant information to gain a better understanding of the function of this enzyme. Our review of the data generated from studies in bacteria shows much diversity in their molecular properties, including weight, oligomeric states, cofactor and substrate binding affinities, as well as differences in the direction of the enzymatic reaction. Furthermore, due to the importance of its function, the transcription and activity of this enzyme are rigorously regulated. Crystal structures of MDH from different bacterial sources led to the identification of the regions involved in substrate and cofactor binding and the residues important for the dimer-dimer interface. This structural information allows one to make direct modifications to improve the enzyme catalysis by increasing its activity, cofactor binding capacity, substrate specificity, and thermostability. A comparative analysis of the phylogenetic reconstruction of MDH reveals interesting facts about its evolutionary history, dividing this superfamily of proteins into two principle clades and establishing relationships between MDHs from different cellular compartments from archaea, bacteria, and eukaryotes.

关键词： Malate dehydrogenase Carbon metabolism Tricarboxylic acid cycle

The opening of maitotoxin-sensitive calcium channels induces the acrosome reaction in human spermatozoa： differences from the zona pellucida

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Asian Journal of Andrology 2011年第1期13卷 159-165页

作者： lulio C Chaivez Gerardo A de Blas Josd L de la Vega-Beltran Takuya Nishigaki Mayel Chirinos Maria elena Gonzaez-gonzalez Fernando Larrea Alejandra Soiis Alberto Darszon Claudia L Trevino Department of Developmental Genetics and Molecular Physiology Biotechnology Institute UNAM Cuernavaca Mexico Department of Reproduction Biology National Institute of Medical Sciences and Nutrition ＇Salvador Zubiran＇ Mexico City Mexico

The acrosome reaction （AR）, an absolute requirement for spermatozoa and egg fusion, requires the influx of Ca2＋ into the spermatozoa through voltage-dependent Ca2＋ channels and store-operated channels. Maitotoxin （MTx）, a Ca2＋-mobilizing agent, has been shown to be a potent inducer of the mouse sperm AR, with a pharmacology similar to that of the zona pellucida （ZP）, possibly suggesting a common pathway for both inducers. Using recombinant human ZP3 （rhZP3）, mouse ZP and two MTx channel blockers （U73122 and U73343）, we investigated and compared the MTx- and ZP-induced ARs in human and mouse spermatozoa. Herein, we report that MTx induced AR and elevated intracellular Ca2＋（[Ca2＋]~） in human spermatozoa, both of which were blocked by U73122 and U73343. These two compounds also inhibited the MTx-induced AR in mouse spermatozoa. In disagreement with our previous proposal, the AR triggered by rhZP3 or mouse ZP was not blocked by U73343, indicating that in human and mouse spermatozoa, the AR induction by the physiological ligands or by MTx occurred through distinct pathways. U73122, but not U73343 （inactive analogue）, can block phospholipase C （PLC）. Another PLC inhibitor, edelfosine, also blocked the rhZP3- and ZP-induced ARs. These findings confirmed the participation of a PLC-dependent signalling pathway in human and mouse zona protein-induced AR. Notably, edelfosine also inhibited the MTx-induced mouse sperm AR but not that of the human, suggesting that toxin-induced AR is PLC-dependent in mice and PLC-independent in humans.

关键词： acrosome reaction calcium channels human sperm maitotoxin mouse sperm

#ChronicPain:Automated Building of a Chronic Pain Cohort from Twitter Using Machine Learning

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Health Data Science 2023年第1期3卷 67-76页

作者： Abeed Sarker Sahithi Lakamana Yuting Guo Yao Ge Abimbola Leslie Omolola Okunromade elena gonzalez-Polledo Jeanmarie Perrone Anne Marie McKenzie-Brown Department of Biomedical Informatics School of MedicineEmory UniversityAtlantaGAUSA. Department of Radiology Robert Larner College of MedicineUniversity of VermontBurlingtonVTUSA. Department of Health Policy and Community Health Jiann-Ping Hsu College of Public HealthGeorgia Southern UniversityStatesboroGAUSA. Department of Anthropology Goldsmiths University of LondonLondonUK. Department of Emergency Medicine Perelman School of MedicineUniversity of PennsylvaniaPhiladelphiaPAUSA. Department of Anesthesiology School of MedicineEmory UniversityAtlantaGAUSA.

Importance:Drug-likeness of a compound is an overall assessment of its potential to succeed in clinical trials,and is essential for economizing research expenditures by filtering compounds with unfavorable properties and poor development *** this end,a robust drug-likeness prediction method is *** approaches,including discriminative rules,statistical models,and machine learning models,have been developed to predict drug-likeness based on physiochemical properties and structural ***,recent advancements in novel deep learning techniques have significantly advanced drug-likeness prediction,especially in classification ***:In this review,we addressed the evolving landscape of drug-likeness prediction,with emphasis on methods employing novel deep learning techniques,and highlighted the current challenges in drug-likeness prediction,specifically regarding the aspects of generalization and ***,we explored potential remedies and outlined promising avenues for future ***:Despite the hurdles of generalization and interpretability,novel deep learning techniques have great potential in drug-likeness prediction and are worthy of further research efforts.

关键词： spite prediction landscape

One hundred and one over-the-scope-clip applications forsevere gastrointestinal bleeding,leaks and fistulas

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World Journal of Gastroenterology 2016年第5期22卷 1844-1853页

作者： Edris Wedi Susana gonzalez Detlev Menke elena Kruse Kai Matthes Juergen Hochberger Department of Gastroenterology Nouvel Hôpital Civil and IHUStrasbourg University HospitalsF-67091 StrasbourgFrance Department of Medicine III-Gastroenterology Interventional EndoscopySt.Bernward Academic Teaching HospitalD-31134 HildesheimGermany Henry D Janowitz Division of Gastroenterology Icahn School of Medicine at Mount SinaiNew YorkNY 10023United States Department of Anesthesiology Perioperative and Pain MedicineBoston Children’s HospitalHarvard Medical SchoolBostonMA 02115United States Section of Gastroenterology and GI Endoscopy Interdisciplinary Center for Digestive DiseasesStrasbourg University HospitalsNouvel Hôpital Civil and IHUF-67091 StrasbourgFrance

AIM: To investigate the efficacy and clinical outcome of patients treated with an over-the-scope-clip(OTSC) system for severe gastrointestinal hemorrhage, perforations and ***: From 02-2009 to 10-2012, 84 patients were treated with 101 OTSC clips. 41 patients(48.8%) presented with severe upper-gastrointestinal(GI) bleeding, 3(3.6%) patients with lower-GI bleeding, 7 patients(8.3%) underwent perforation closure, 18 patients(21.4%) had prevention of secondary perforation, 12 patients(14.3%) had control of secondary bleeding after endoscopic mucosal resection or endoscopic submucosal dissection(ESD) and 3 patients(3.6%) had an intervention on a chronic fistula. RESULTS: In 78/84 patients(92.8%), primary treatment with the OTSC was technically successful. Clinical primary success was achieved in 75/84 patients(89.28%). The overall mortality in the study patients was 11/84(13.1%) and was seen in patients with life threatning upper GI hemorrhage. There was no mortality in any other treatment group. In detail OTSC application lead to a clinical success in 35/41(85.36%) patients with upper GI bleeding and in 3/3 patients with lower GI bleeding. Technical success of perforation closure was 100% while clinical success was seen in 4/7 cases(57.14%) due to attendant circumstances unrelated to the OTSC. Technical and clinic success was achieved in 18/18(100%) patients for the prevention of bleeding or perforation after endoscopic mucosal resection and ESD and in 3/3 cases of fistula closure. Two application-related complications were seen(2%).CONCLUSION: This largest single center experience published so far confirms the value of the OTSC for GI emergencies and complications. Further clinical experience will help to identify optimal indications for its targeted and prophylactic use.

关键词： Over-the-scope-clip Endoscopic therapy Gastrointestinal bleeding Perforation Fistula

Predicting scenic beauty of forest stands in Catalonia （North-east Spain）

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Journal of Forestry Research 2009年第1期20卷 73-78页

作者： elena Blasco Jose Ramon gonzalez-Olabarria Pedro Rodriguez-Veiga Timo Pukkala Osmo Kolehmainen Marc Palahi Centre Tecnologic Forestal de Catalunya Pujada del seminari s/n 25280 Solsona Spain EFIMED Mediterran Regional Office of the European Forest Institute Passeig Lluis Companys 23 8010 Barcelona Spain University of Vigo Pontevedra 36200 Spain ForEeoTechonologies. Av Diagonal 416 estudio 2 08037 Barcelona Spain University of Joensuu Department of Computer Science and Statistics Science Park 3rd floor Lansikatu 15 80110 Joensuu Finland

Relative preferences of 90 images of forest stands, photos and virtual reality images were investigated by the intemet to develop a quantitative model for estimating scenic beauty preferences at the stand level, The relative priority values obtained from the questionnaire of a total of 259 judges were analyzed using regression methods for pairwise comparisons. Two models were developed based on two different groups of stands. Both models indicate that the priority of a forest stand increases with an augment in the number of bushes and trees, and also with the mean diameter of trees. On the other hand, the priority is low with large number of pines and small trees. Stands represented by photos receive better priority values than those represented by virtual reality images. When the background of the judges （gender, country or occupation） was included into the model as additional predictors, no significant improvements are achieved.

关键词： analytic hierarchy process landscape preferences pairwise comparison virtual reality

Dissection of miRNA Pathways Using Arabidopsis Mesophyll Protoplasts

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Molecular Plant 2015年第2期8卷 261-275页

作者： Claudia Martinho Ana Confraria Carlos Alexandre Elias Pierre Crozet Ignacio Rubio-Somoza Detlef Weigel elena Baena-gonzalez Plant Stress Signaling Instituto Gulbenkian de Ciencia Rua da Quinta Grande - 6 2780-156 Oeiras Portugal Department of Molecular Biology Max Planck Institute for Developmental Biology D-72076 Tubingen Germany These authors contributed equally to this article. Present address: Sainsbury Laboratory Cambridge University Bateman Street Cambridge CB2 1LR UK

MicroRNAs （miRNAs） control gene expression mostly post-transcriptionally by guiding transcript cleavage and/or translational repression of complementary mRNA targets, thereby regulating developmental processes and stress responses. Despite the remarkable expansion of the field, the mechanisms underlying miRNA activity are not fully understood. In this article, we describe a transient expression system in Arabidopsis mesophyll protoplasts, which is highly amenable for the dissection of miRNA pathways. We show that by transiently overexpressing primary miRNAs and target mimics, we can manipulate miRNA levels and consequently impact on their targets. Furthermore, we developed a set of luciferase-based sensors for quantifying miRNA activity that respond specifically to both endogenous and overexpressed miRNAs and target mimics. We demonstrate that these miRNA sensors can be used to test the impact of putative components of the miRNA pathway on miRNA activity, as well as the impact of specific mutations, by either overexpression or the use of protoplasts from the corresponding mutants. We further show that our miRNA sensors can be used for investigating the effect of chemicals on miRNA activity. Our cell-based transient expression system is fast and easy to set up, and generates quantitative results, being a powerful tool for assaying miRNA activity in vivo.

关键词： miRNA miRNA activity miRNA sensor protoplasts Arabidopsis thaliana

Genetics of adult attachment:An updated review of the literature

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World Journal of Psychiatry 2021年第9期11卷 530-542页

作者： Leire Erkoreka Mercedes Zumarraga Aurora Arrue M Isabel Zamalloa Ainara Arnaiz Olga Olivas Teresa Moreno-Calle Estela Saez Jon Garcia elena Marin Noemi Varela Ana gonzalez-Pinto Nieves Basterreche Department of Psychiatry Galdakao-Usansolo HospitalOsakidetza Basque Health ServiceGaldakao 48960Spain Grupo Red de Salud Mental Biocruces Bizkaia Health Research InstituteBarakaldo 48903Spain Department of Neurosciences University of the Basque Country UPV/EHULeioa 48940Spain Department of Neurochemical Research Bizkaia Mental Health NetworkOsakidetza Basque Health ServiceBarakaldo 48903Spain Erandio Mental Health Center Bizkaia Mental Health NetworkOsakidetza Basque Health ServiceErandio 48950Spain Zaldibar Hospital Bizkaia Mental Health NetworkOsakidetza Basque Health ServiceZaldibar 48250Spain Zamudio Hospital Bizkaia Mental Health NetworkOsakidetza Basque Health ServiceZamudio 48170Spain Bermeo Hospital Bizkaia Mental Health NetworkOsakidetza Basque Health ServiceBermeo 48370Spain Department of Psychiatry BioAraba Research InstituteAraba University HospitalUniversity of the Basque Country(UPV/EHU)CIBERSAMVitoria-Gasteiz 01004Spain Grupo de investigacion integradora en Salud Mental Biocruces Bizkaia Health Research InstituteBarakaldo 48903Spain

Attachment style,which has been theorized to be rooted in childhood bonding experiences,influences adult cognitive,emotional and interpersonal *** its relationship with early experiences,research indicates that the continuity of attachment style across childhood and adulthood is only partial,being a malleable tendency that is shaped throughout development,with an increasing influence of genetics,as it occurs in other cognitive and behavioral *** research indicates that up to 45% of the variability in anxious and 39% in avoidant adult attachment style could be explained by genetic causes,but the precise mechanisms remain unclear.A narrative review is conducted analyzing the existing literature regarding the implication of candidate genes related to oxytocin,dopaminergic pathways,serotonergic pathways and brainderived neurotrophic factor in adult attachment,with both vulnerability and differential susceptibility approaches,yielding mixed *** highlight the lack of genome-wide studies and the scarcity of epigenetic *** on the existing data,we conclude that the genetics of adult attachment is an area that requires further research to clarify its etiological role and that it should be preferably approached as an interaction between nature and nurture.

关键词： Genetics Adult attachment Oxytocin Dopamine Serotonin Brain-derived neurotrophic factor Methylation