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https://www.readbyqxmd.com/read/28637098/uncovering-the-contribution-of-epigenetics-to-plant-phenotypic-variation-in-mediterranean-ecosystems
#1
REVIEW
F Balao, O Paun, C Alonso
Epigenetic signals can affect plant phenotype and fitness and be stably inherited across multiple generations. Epigenetic regulation plays a key role in the mechanisms of plant response to the environment without altering DNA sequence. As plants cannot adapt behaviourally or migrate instantly, such dynamic epigenetic responses may be particularly crucial for survival of plants within changing and challenging environments, such as the Mediterranean-Type Ecosystems (MTEs). These ecosystems suffer recurrent stressful events (warm and dry summers with associated fire regimes) that have selected for plants with similar phenotypic complex traits, resulting in similar vegetation growth forms...
June 21, 2017: Plant Biology
https://www.readbyqxmd.com/read/28637086/climate-drives-plant-pollinator-interactions-even-along-small-scale-climate-gradients-the-case-of-the-aegean
#2
T Petanidou, A S Kallimanis, M Lazarina, T Tscheulin, J Devalez, A Stefanaki, E Ηanlidou, A Vujić, A Kaloveloni, S P Sgardelis
Plant-pollinator network structure is the outcome of ecological and evolutionary processes, and although the importance of environmental factors is beyond doubt, our knowledge of how abiotic factors (e.g. climate) shape plant-pollinator networks remains limited. This knowledge gap is critical, as climate change poses a major threat to ecosystems, especially in the Mediterranean. This study focuses on one of the hottest parts of the Basin, the Aegean Archipelago, Greece, and examines how climate affects species richness and network properties (e...
June 21, 2017: Plant Biology
https://www.readbyqxmd.com/read/28636804/new-insights-into-global-biogeography-population-structure-and-natural-selection-from-the-genome-of-the-epipelagic-copepod-oithona
#3
Mohammed-Amin Madoui, Julie Poulain, Kevin Sugier, Marc Wessner, Benjamin Noel, Leo Berline, Karine Labadie, Astrid Cornils, Leocadio Blanco-Bercial, Lars Stemmann, Jean-Louis Jamet, Patrick Wincker
In the epipelagic ocean the genus Oithona is considered as one of the most abundant and widespread copepods and plays an important role in the trophic food web. Despite its ecological importance, little is known about the Oithona and cyclopoid copepods genomics. Therefore, we sequenced, assembled and annotated the genome of Oithona nana. The comparative genomic analysis integrating available copepod genomes highlighted the expansions of genes related to stress response, cell differentiation, and development, including genes coding Lin12-Notch-Repeat (LNR) domain proteins...
June 21, 2017: Molecular Ecology
https://www.readbyqxmd.com/read/28636519/how-we-eat-may-be-as-important-as-what-we-eat-eating-behaviour-and-heart-rate-variability
#4
Mehmet Emre Ozpelit, Ebru Ozpelit
Objective Diet exerts a crucial role on cardiovascular health. Evidence is mainly based on the content and the amount of dietary intakes. Some recent reports demonstrated that eating behaviour may also be of significant importance in cardiovascular health. In this study we aimed to investigate the effects of eating behaviour on heart rate variability (HRV) in healthy subjects. Methods and results In total, 521 healthy subjects with 24-hour Holter ECG recordings filled out a special questionnaire about their eating behaviour and lifestyles...
March 30, 2017: Acta Cardiologica
https://www.readbyqxmd.com/read/28635658/asperentin-b-a-new-inhibitor-of-the-protein-tyrosine-phosphatase-1b
#5
Jutta Wiese, Hülya Aldemir, Rolf Schmaljohann, Tobias A M Gulder, Johannes F Imhoff
In the frame of studies on secondary metabolites produced by fungi from deep-sea environments we have investigated inhibitors of enzymes playing key roles in signaling cascades of biochemical pathways relevant for the treatment of diseases. Here we report on a new inhibitor of the human protein tyrosine phosphatase 1B (PTP1B), a target in the signaling pathway of insulin. A new asperentin analog is produced by an Aspergillussydowii strain isolated from the sediment of the deep Mediterranean Sea. Asperentin B (1) contains an additional phenolic hydroxy function at C-6 and exhibits an IC50 value against PTP1B of 2 μM in vitro, which is six times stronger than the positive control, suramin...
June 21, 2017: Marine Drugs
https://www.readbyqxmd.com/read/28635649/the-sea-urchin-arbacia-lixula-a-novel-natural-source-of-astaxanthin
#6
Paola Cirino, Christophe Brunet, Martina Ciaravolo, Christian Galasso, Luigi Musco, Tomás Vega Fernández, Clementina Sansone, Alfonso Toscano
Several echinoderms, including sea urchins, are valuable sources of bioactive compounds but their nutraceutical potential is largely unexplored. In fact, the gonads of some sea urchin species contain antioxidants including carotenoids and polyhydroxylated naphthoquinones (PHNQ's), such as echinochrome A. Astaxanthin is known to have particular bioactivity for the prevention of neurodegenerative diseases. This carotenoid is produced by microalgae, while several marine invertebrates can bioaccumulate or synthetize it from metabolic precursors...
June 21, 2017: Marine Drugs
https://www.readbyqxmd.com/read/28634625/serum-antioxidant-capacity-biochemical-profile-and-body-composition-of-breast-cancer-survivors-in-a-randomized-mediterranean-dietary-intervention-study
#7
Maria Skouroliakou, D Grosomanidis, P Massara, C Kostara, P Papandreou, D Ntountaniotis, G Xepapadakis
PURPOSE: Increasing evidence suggests that Mediterranean Diet (MD) is correlated with reduced risk of breast cancer (BC) and cancer mortality, since it modifies patients' serum antioxidant capacity, body composition and biochemical parameters. The aim of the study was to investigate whether a dietary intervention based on MD has a beneficial effect on these factors. METHODS: In this intervention study, seventy female BC survivors were randomly assigned to (1) the intervention group (personalized dietary intervention based on MD) and (2) the control group (received the updated American Cancer Society Guidelines on Nutrition and Physical Activity for Cancer Prevention and ad libitum diet)...
June 20, 2017: European Journal of Nutrition
https://www.readbyqxmd.com/read/28633110/emerging-contaminants-related-to-the-occurrence-of-forest-fires-in-the-spanish-mediterranean
#8
Julian Campo, María Lorenzo, Erik L H Cammeraat, Yolanda Picó, Vicente Andreu
Forest fires can be a source of contamination because, among others, of the use of chemicals to their extinction (flame retardants, FRs), or by the production of Polycyclic Aromatic Hydrocarbons (PAHs) derived from high temperature alteration of organic matter. Up to our knowledge, this study is the first to assess the direct (PAHs 16 on the USA EPA's priority list), and indirect [tri- to hepta- brominated diphenyl ethers (PBDEs), organophosphorus flame retardants (PFRs) and perfluoroalkyl substances (PFASs)] contamination related to forest fires...
June 17, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28633087/in-field-study-on-traditional-italian-tomato-landraces-the-constitutive-activation-of-the-ros-scavenging-machinery-reduces-effects-of-drought-stress
#9
Simone Landi, Alessia De Lillo, Roberta Nurcato, Stefania Grillo, Sergio Esposito
The involvement and the efficiency of the antioxidants scavenging system upon drought were examined by comparing traditional tomato landraces with respect to an industrial commercial genotype (Red Setter); for the first time, comprehensive analyses of physiological, biochemical and molecular parameters were investigated directly under real field conditions, in a typical agricultural environment of Southern Italy. The characterization of the responses upon drought evidenced peculiar changes in stomatal conductance, ascorbate peroxidase and catalase activities and expression in drought tolerant tomato landraces, with respect to the industrial genotype...
June 13, 2017: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/28632161/endogenous-retroviral-insertions-indicate-a-secondary-introduction-of-domestic-sheep-lineages-to-the-caucasus-and-central-asia-between-the-bronze-and-iron-age
#10
Oskar Schroeder, Norbert Benecke, Kai Frölich, Zuogang Peng, Kai Kaniuth, Leonid Sverchkov, Sabine Reinhold, Andrey Belinskiy, Arne Ludwig
Sheep were one of the first livestock species domesticated by humans. After initial domestication in the Middle East they were spread across Eurasia. The modern distribution of endogenous Jaagsiekte sheep retrovirus insertions in domestic sheep breeds suggests that over the course of millennia, successive introductions of improved lineages and selection for wool quality occurred in the Mediterranean region and most of Asia. Here we present a novel ancient DNA approach using data of endogenous retroviral insertions in Bronze and Iron Age domestic sheep from the Caucasus and Pamir mountain areas...
June 20, 2017: Genes
https://www.readbyqxmd.com/read/28631068/autoinflammatory-diseases-with-periodic-fevers
#11
REVIEW
Erdal Sag, Yelda Bilginer, Seza Ozen
PURPOSE OF REVIEW: One purpose of this review was to raise awareness for the new autoinflammatory syndromes. These diseases are increasingly recognized and are in the differential diagnosis of many disease states. We also aimed to review the latest recommendations for the diagnosis, management, and treatment of these patients. RECENT FINDINGS: Familial Mediterranean fever (FMF), cryopyrin-associated periodic syndrome (CAPS), tumor necrosis factor receptor-associated periodic fever syndrome (TRAPS), and hyperimmunoglobulinemia D and periodic fever syndrome/mevalonate kinase deficiency (HIDS/MVKD) are the more common autoinflammatory diseases that are characterized by periodic fevers and attacks of inflammation...
July 2017: Current Rheumatology Reports
https://www.readbyqxmd.com/read/28629899/high-adherence-to-a-mediterranean-diet-and-lower-risk-of-frailty-among-french-older-adults-community-dwellers-results-from-the-three-city-bordeaux-study
#12
Berna Rahi, Soufiane Ajana, Maturin Tabue-Teguo, Jean-François Dartigues, Karine Peres, Catherine Feart
BACKGROUND & AIMS: Mediterranean diet (MeDi) is considered as a key component for healthy aging, including prevention of age-related disability, while its association with frailty, independent of disability has never been assessed. Our objective was to investigate the relation between MeDi adherence and frailty incidence among persons aged ≥75 years participating at the prospective population-based French Three-City Study. METHODS: The study sample consisted of 560 initially non-frail participants of the Three-City-Bordeaux center, seen at the 2009-2010 follow-up, and re-examined two years later...
May 31, 2017: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/28629740/seasonal-dynamics-spatial-distribution-and-genetic-analysis-of-anaplasma-species-infecting-small-ruminants-from-northern-tunisia
#13
Hanène Belkahia, Mourad Ben Said, Narjesse El Mabrouk, Mariem Saidani, Chayma Cherni, Mariem Ben Hassen, Ali Bouattour, Lilia Messadi
To date, there have been no reports on seasonal variations of Anaplasma spp. in South Mediterranean small ruminants. In this longitudinal field study, single and mixed Anaplasma spp. infections in small ruminants from five different governorates belonging to three bioclimatic zones from the North of Tunisia were evaluated according to seasons. A total of 1685 blood small ruminant samples were collected in spring (355 sheep and 241 goats), summer (249 sheep and 202 goats), autumn (236 sheep and 186 goats) and winter (132 sheep and 84 goats)...
June 16, 2017: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/28629669/influence-of-the-mediterranean-diet-during-pregnancy-in-the-development-of-wheezing-and-eczema-in-infants-in-pamplona-spain
#14
N Alvarez Zallo, I Aguinaga-Ontoso, I Alvarez-Alvarez, B Marin-Fernandez, F Guillén-Grima, C Azcona-San Julián
BACKGROUND: This study examined the relationship between different food groups and the adherence to a Mediterranean diet during pregnancy and the risk of wheezing and eczema in children aged 12-15 months. METHODS: The study involves 1087 Spanish infants from the International Study of Wheezing in Infants (Estudio Internacional de Sibilancias en Lactantes, EISL). The study of the association of the different food consumption and Mediterranean diet with wheezing, recurrent wheezing and eczema was performed using different models of unconditional logistic regression to obtain adjusted prevalence odds ratios (OR) and 95% confidence intervals (95% CI)...
June 16, 2017: Allergologia et Immunopathologia
https://www.readbyqxmd.com/read/28628993/the-impact-of-silver-nanoparticles-on-marine-plankton-dynamics-dependence-on-coating-size-and-concentration
#15
Anastasia Tsiola, Paraskevi Pitta, Agnès Junyer Callol, Margarita Kagiorgi, Ioanna Kalantzi, Kyriaki Mylona, Ioulia Santi, Claudio Toncelli, Spyros Pergantis, Manolis Tsapakis
During this study, three microcosm experiments were carried out with natural coastal seawater, collected in the Eastern Mediterranean Sea, in order to assess the effect of silver nanoparticle (AgNP) exposure to natural plankton communities. The impact of coating (branched-polyethyleneimine: BPEI vs. poly-vinylpyrrolidone: PVP), size (40 vs. 60nm), concentration (200, 500, 2000, 5000 and 10,000ng Ag L(-1)) and silver form (dissolved Ag(+) vs. AgNPs) were tested. The results of chlorophyll a concentration revealed that PVP AgNPs caused a higher toxicity than BPEI AgNPs, and this was possibly related to the measured higher dissolution rate...
June 14, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28626790/data-on-records-of-indoor-temperature-and-relative-humidity-in-a-university-building
#16
O Irulegi, A Serra, R Hernández
Good indoor comfort and air quality are essential for correct educational development. Most reports in this field focus on primary and secondary school buildings, with numerous projects conducted in the Mediterranean Zone. However, little has been done in the context of university buildings. Data on indoor temperature and relative humidity data acquired trough field surveys of a seminar room located in the Architecture Faculty in San Sebastian (Spain) is provided in this paper. The seminar room was monitored during a typical spring week...
August 2017: Data in Brief
https://www.readbyqxmd.com/read/28625873/an-approach-to-the-study-of-the-immunity-functions-of-bivalve-haemocytes-physiology-and-molecular-aspects
#17
REVIEW
Mario Alberto Burgos-Aceves, Caterina Faggio
The Mediterranean mussel Mytilus galloprovincialis is an ecologically and economically important species. It has been used in programs of monitoring of pollutions, since it is sessile organism that is capable of accumulating pollutants in tissues through filter feeding. Due to an increase of pollutants in the environment, marine mussels present physiological alterations that compromise their innate immune system, which can latter lead to opportunistic diseases. The haemocytes are the cells in charge of the immune response in the Mediterranean mussel and in other mollusks...
June 15, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28625778/analysis-of-phytoplankton-assemblage-structure-in-the-mediterranean-sea-based-on-high-throughput-sequencing-of-partial-18s-rrna-sequences
#18
Antonella Penna, Silvia Casabianca, Antonio Fernandez Guerra, Cristiano Vernesi, Michele Scardi
Studying taxonomic and ecological diversity of phytoplankton assemblages is often difficult because morphological analysis cannot provide a complete description of their composition. Therefore, more robust and feasible approaches have to be chosen to elucidate the interactions between environmental and human pressures and phytoplankton assemblages. The Ocean Sampling Day (OSD) allowed collecting seawater samples from a wide range of oceanic regions including the Mediterranean Sea. In this study, a total of 754,167 V4-18S ribosomal DNA (rDNA) metabarcodes derived from 20 plankton samples collected at 19 sampling sites across the coastal areas of the Mediterranean Sea were analyzed to explore the relationships between phytoplankton assemblages' composition, sub-regional environmental features and human pressures...
June 15, 2017: Marine Genomics
https://www.readbyqxmd.com/read/28625175/may-the-mediterranean-diet-attenuate-the-risk-of-type-2-diabetes-associated-with-obesity-the-seguimiento-universidad-de-navarra-sun-cohort
#19
Sonia Eguaras, Maira Bes-Rastrollo, Miguel Ruiz-Canela, Silvia Carlos, Pedro de la Rosa, Miguel A Martínez-González
It is likely that the Mediterranean diet (MedDiet) may mitigate the adverse effects of obesity on the incidence of type 2 diabetes mellitus (T2DM). We assessed this hypothesis in a cohort of 18 225 participants initially free of diabetes (mean age: 38 years, 61 % women). A validated semi-quantitative 136-item FFQ was used to assess dietary intake and to build a 0-9 score of adherence to MedDiet. After a median of 9·5-year follow-up, 136 incident cases of T2DM were confirmed during 173 591 person-years follow-up...
June 19, 2017: British Journal of Nutrition
https://www.readbyqxmd.com/read/28624931/familial-mediterranean-fever-review-of-the-literature
#20
Mansour Alghamdi
Familial Mediterranean fever (FMF) is the most common monogenic periodic fever syndrome and characterized by recurrent episodes of fever, serositis, arthritis, dermal manifestations, and long-term renal complications. The MEFV gene was described in 1997 as the gene responsible for FMF and is inherited in autosomal recessive manner. It encodes mutated protein pyrin, an important player in the innate immune system and the component of inflammasome which leads to exaggerated inflammatory response through uncontrolled production of interleukin-1...
June 18, 2017: Clinical Rheumatology
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