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https://www.readbyqxmd.com/read/28532062/polylactide-and-polycaprolactone-based-substrates-enhance-angiogenic-potential-of-human-umbilical-cord-derived-mesenchymal-stem-cells-in-vitro-implications-for-cardiovascular-repair
#1
Małgorzata Sekuła, Patrycja Domalik-Pyzik, Anna Morawska-Chochół, Sylwia Bobis-Wozowicz, Elżbieta Karnas, Sylwia Noga, Dariusz Boruczkowski, Marta Adamiak, Zbigniew Madeja, Jan Chłopek, Ewa K Zuba-Surma
Recent approaches in tissue regeneration focus on combining innovative achievements of stem cell biology and biomaterial sciences to develop novel therapeutic strategies for patients. Growing recent evidence indicates that mesenchymal stem cells harvested from human umbilical cord Wharton's jelly (hUC-MSCs) are a new valuable source of cells for autologous as well as allogeneic therapies in humans. hUC-MSCs are multipotent, highly proliferating cells with prominent immunoregulatory activity. In this study, we evaluated the impact of widely used FDA approved poly(α-esters) including polylactide (PLA) and polycaprolactone (PCL) on selected biological properties of hUC-MSCs in vitro...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28531964/non-electron-transfer-chain-mitochondrial-defects-differently-regulate-hif-1%C3%AE-degradation-and-transcription
#2
Antonina N Shvetsova, Daniela Mennerich, Juha M Kerätär, J Kalervo Hiltunen, Thomas Kietzmann
Mitochondria are the main consumers of molecular O2 in a cell as well as an abundant source of reactive oxygen species (ROS). Both, molecular oxygen and ROS are powerful regulators of the hypoxia-inducible factor-1α-subunit (HIF-α). While a number of mechanisms in the oxygen-dependent HIF-α regulation are quite well known, the view with respect to mitochondria is less clear. Several approaches using pharmacological or genetic tools targeting the mitochondrial electron transport chain (ETC) indicated that ROS, mainly formed at the Rieske cluster of complex III of the ETC, are drivers of HIF-1α activation...
May 8, 2017: Redox Biology
https://www.readbyqxmd.com/read/28531958/unique-postglacial-evolution-of-the-hornbeam-carpinus-betulus-l-in-the-carpathians-and-the-balkan-peninsula-revealed-by-chloroplast-dna
#3
Dragoş Postolache, Flaviu Popescu, Ladislav Paule, Dalibor Ballian, Peter Zhelev, Sorina Fărcaş, Juraj Paule, Ovidiu Badea
The Balkan Peninsula is one of the largest and most important European glacial refugia. However, the evolutionary history and phylogeographic pattern of temperate tree species that survived in the Balkans glacial refugia and their contribution to the genetic structure of the current population in the Carpathian Mountains remains poorly understood. Using polymerase chain reaction - restriction fragment length polymorphism (PCR-RFLP), and extensive population sampling, we explored the phylogeographic pattern of Carpinus betulus in both the Balkan Peninsula and the Carpathian region...
May 17, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28531893/association-study-of-serotonin-3-receptor-subunit-gene-variants-in-antipsychotic-induced-weight-gain
#4
Clement C Zai, Arun K Tiwari, Nabilah I Chowdhury, Eva J Brandl, Sajid A Shaikh, Natalie Freeman, Jeffrey A Lieberman, Herbert Y Meltzer, James L Kennedy, Daniel J Müller
BACKGROUND: Schizophrenia (SCZ) is a chronic severe neuropsychiatric disorder, where pharmacological treatment has been hindered by adverse effects, including antipsychotic-induced weight gain (AIWG) and related complications. Genetic studies have been exploring the appetite regulation and energy homeostasis pathways in AIWG with some promising leads. The serotonin system has been shown to participate in these pathways. METHODS: In the current study, we examined single nucleotide polymorphisms across the serotonin receptor genes HTR3A and HTR3B...
May 23, 2017: Neuropsychobiology
https://www.readbyqxmd.com/read/28531561/a-meta-analysis-of-neurocognition-in-youth-with-familial-high-risk-for-bipolar-disorder
#5
E Bora, A Özerdem
OBJECTIVE: Neuropsychological impairment, including deficits in social cognition is evident in subjects at genetic high-risk for psychosis. However, findings in youth at genetic risk to bipolar disorder (BP) have been suggested to be less supportive of premorbid deficits. We aimed to conduct a meta-analysis of cognitive deficits in youth with familiar risk for bipolar disorder (FHR-BD). METHODS: A novel meta-analysis of FHR-BD (mean age 10-25), including 18 studies (786 offsprings/siblings of patients with BD and 794 healthy controls), was conducted...
March 3, 2017: European Psychiatry: the Journal of the Association of European Psychiatrists
https://www.readbyqxmd.com/read/28531368/molecular-phylogeny-of-loliginidae-inferred-from-mitochondrial-dna-sequence-variation
#6
Lisen Kang, Shuyi Zhang, Changwen Wu, Xiaoxu Liu, Mei Ying Xu, Lihua Jiang
Loliginidae includes many economically important species in trophic systems worldwide. Here, we investigated genetic relationships and diversity in this family. Sequence comparisons and phylogenetic analyses revealed considerable variations between mitochondrial 16 S rRNA gene and cytochrome coxidase subunit I gene among nine Loliginid species. We identified three similar non-coding regions in eight Loliginid species, but not in Sepioteuthislessoniana. We detected a single extended termination-associated sequence and three conserved sequence blocks among these eight species...
May 20, 2017: Mitochondrial DNA. Part A. DNA Mapping, Sequencing, and Analysis
https://www.readbyqxmd.com/read/28531326/relationship-among-establishment-durations-kin-relatedness-aggressiveness-and-distance-between-populations-of-eight-invasive-argentine-ant-hymenoptera-formicidae-supercolonies-in-japan
#7
K Sato, H Sakamoto, M Hirata, M Kidokoro-Kobayashi, M Ozaki, S Higashi, T Murakami
We investigated kin relatedness and kin-recognition abilities of the Argentine ant, Linepithema humile (Mayr), an invader from North America that has pervaded Japan for 20 yr, using genetic analyses and behavioral bioassays. From these data and interactions among factors, we formulated an eradication and management time-scale pattern diagram. Relatedness within a colony using microsatellite markers was effectively zero, whereas relatedness estimated by multilocus DNA fingerprinting markers was relatively high...
May 22, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28531300/anosmia-a-clinical-review
#8
Sanne Boesveldt, Elbrich M Postma, Duncan Boak, Antje Welge-Luessen, Veronika Schöpf, Joel D Mainland, Jeffrey Martens, John Ngai, Valerie B Duffy
Anosmia and hyposmia, the inability or decreased ability to smell, is estimated to afflict 3-20% of the population. Risk of olfactory dysfunction increases with old age and may also result from chronic sinonasal diseases, severe head trauma, and upper respiratory infections, or neurodegenerative diseases. These disorders impair the ability to sense warning odors in foods and the environment, as well as hinder the quality of life related to social interactions, eating, and feelings of well-being. This article reports and extends on a clinical update commencing at the 2016 Association for Chemoreception Sciences annual meeting...
May 22, 2017: Chemical Senses
https://www.readbyqxmd.com/read/28531291/a-novel-virus-vectored-respiratory-mucosal-vaccine-enhances-anti-tuberculosis-immunity-in-a-humanized-model-system
#9
Yushi Yao, Rocky Lai, Sam Afkhami, Siamak Haddadi, Anna Zganiacz, Fatemeh Vahedi, Ali A Ashkar, Charu Kaushic, Mangalakumari Jeyanathan, Zhou Xing
Background: The translation of pre-clinically promising novel tuberculosis (TB) vaccines to ultimate human applications has met with the challenge of lacking markedly improved animal models for vaccine testing with an immune system of human equivalent in its genetic diversity and level of susceptibility to TB. Methods: We have developed a humanized mice (Hu-mice) TB model system to investigate the clinical relevance of a novel virus-vectored (VV) TB vaccine administered via respiratory mucosal (RM) or parenteral route...
May 20, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28531286/is-foetal-hyperexposure-to-androgens-a-cause-of-pcos
#10
Panagiota Filippou, Roy Homburg
BACKGROUND: Polycystic ovary syndrome (PCOS) is the most common endocrinopathy affecting reproductive-aged women. The pathophysiology of this syndrome is still not completely understood but recent evidence suggests that the intra-uterine environment may be a key factor in the pathogenesis of PCOS, in particular, hyperexposure of the foetus to androgens. High concentrations of maternal serum testosterone during pregnancy have been shown to influence behaviour during childhood, the prevalence of autism disorders and anti-Mullerian hormone (AMH) concentrations in adolescence...
May 20, 2017: Human Reproduction Update
https://www.readbyqxmd.com/read/28531233/in-silico-development-and-characterization-of-tri-nucleotide-simple-sequence-repeat-markers-in-hazelnut-corylus-avellana-l
#11
Gehendra Bhattarai, Shawn A Mehlenbacher
Plant genomes are now sequenced rapidly and inexpensively. In silico approaches allow efficient development of simple sequence repeat markers, also known as microsatellite markers, from these sequences. A search of the genome sequence of 'Jefferson' hazelnut (Corylus avellana L.) identified 8,708 tri-nucleotide simple sequence repeats with at least five repeat units, and stepwise removal of the less promising sequences led to the development of 150 polymorphic markers. Fragments in the 'Jefferson' sequence containing tri-nucleotide repeats were used as references and aligned with genomic sequences from seven other cultivars...
2017: PloS One
https://www.readbyqxmd.com/read/28531223/dengue-in-bali-clinical-characteristics-and-genetic-diversity-of-circulating-dengue-viruses
#12
Dewi Megawati, Sri Masyeni, Benediktus Yohan, Asri Lestarini, Rahma F Hayati, Febrina Meutiawati, Ketut Suryana, Tangking Widarsa, Dewa G Budiyasa, Ngurah Budiyasa, Khin S A Myint, R Tedjo Sasmono
A high number of dengue cases are reported annually in Bali. Despite the endemicity, limited data on dengue is available for Bali localities. Molecular surveillance study was conducted to explore the clinical and virological characteristics of dengue patients in urban Denpasar and rural Gianyar areas in Bali during the peak season in 2015. A total of 203 adult dengue-suspected patients were recruited in a prospective cross-sectional study. Demographic and clinical information were obtained, and dengue screening was performed using NS1 and IgM/IgG ELISAs...
May 22, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28531214/suspected-lynch-syndrome-associated-msh6-variants-a-functional-assay-to-determine-their-pathogenicity
#13
Hellen Houlleberghs, Anne Goverde, Jarnick Lusseveld, Marleen Dekker, Marco J Bruno, Fred H Menko, Arjen R Mensenkamp, Manon C W Spaander, Anja Wagner, Robert M W Hofstra, Hein Te Riele
Lynch syndrome (LS) is a hereditary cancer predisposition caused by inactivating mutations in DNA mismatch repair (MMR) genes. Mutations in the MSH6 DNA MMR gene account for approximately 18% of LS cases. Many LS-associated sequence variants are nonsense and frameshift mutations that clearly abrogate MMR activity. However, missense mutations whose functional implications are unclear are also frequently seen in suspected-LS patients. To conclusively diagnose LS and enroll patients in appropriate surveillance programs to reduce morbidity as well as mortality, the functional consequences of these variants of uncertain clinical significance (VUS) must be defined...
May 22, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28531206/a-selection-study-on-a-laboratory-designed-population-of-salmon-lic-lepeophtheirus-salmonis-using-organophosphate-and-pyrethroid-pesticides
#14
Elena Myhre Jensen, Sigmund Sevatdal, Marit Jørgensen Bakke, Kiranpreet Kaur, Tor Einar Horsberg
Resistance towards antiparasitic agents in the salmon louse (Lepeophtheirus salmonis) is a widespread problem along the Norwegian coast, reducing treatments efficacies and slowing down the envisioned expansion of Norwegian salmon production. The present study was conducted in order to assess the efficacies of two of the most widely used anti-parasitic substances-azamethiphos and deltamethrin-as well as assessing the benefit of having a resistant genotype compared to being fully sensitive when exposed to one of these substances...
2017: PloS One
https://www.readbyqxmd.com/read/28531201/evolutionary-forces-affecting-synonymous-variations-in-plant-genomes
#15
Yves Clément, Gautier Sarah, Yan Holtz, Felix Homa, Stéphanie Pointet, Sandy Contreras, Benoit Nabholz, François Sabot, Laure Sauné, Morgane Ardisson, Roberto Bacilieri, Guillaume Besnard, Angélique Berger, Céline Cardi, Fabien De Bellis, Olivier Fouet, Cyril Jourda, Bouchaib Khadari, Claire Lanaud, Thierry Leroy, David Pot, Christopher Sauvage, Nora Scarcelli, James Tregear, Yves Vigouroux, Nabila Yahiaoui, Manuel Ruiz, Sylvain Santoni, Jean-Pierre Labouisse, Jean-Louis Pham, Jacques David, Sylvain Glémin
Base composition is highly variable among and within plant genomes, especially at third codon positions, ranging from GC-poor and homogeneous species to GC-rich and highly heterogeneous ones (particularly Monocots). Consequently, synonymous codon usage is biased in most species, even when base composition is relatively homogeneous. The causes of these variations are still under debate, with three main forces being possibly involved: mutational bias, selection and GC-biased gene conversion (gBGC). So far, both selection and gBGC have been detected in some species but how their relative strength varies among and within species remains unclear...
May 22, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28531195/livestock-metabolomics-and-the-livestock-metabolome-a-systematic-review
#16
Seyed Ali Goldansaz, An Chi Guo, Tanvir Sajed, Michael A Steele, Graham S Plastow, David S Wishart
Metabolomics uses advanced analytical chemistry techniques to comprehensively measure large numbers of small molecule metabolites in cells, tissues and biofluids. The ability to rapidly detect and quantify hundreds or even thousands of metabolites within a single sample is helping scientists paint a far more complete picture of system-wide metabolism and biology. Metabolomics is also allowing researchers to focus on measuring the end-products of complex, hard-to-decipher genetic, epigenetic and environmental interactions...
2017: PloS One
https://www.readbyqxmd.com/read/28531187/multi-scale-computational-study-of-the-mechanical-regulation-of-cell-mitotic-rounding-in-epithelia
#17
Ali Nematbakhsh, Wenzhao Sun, Pavel A Brodskiy, Aboutaleb Amiri, Cody Narciso, Zhiliang Xu, Jeremiah J Zartman, Mark Alber
Mitotic rounding during cell division is critical for preventing daughter cells from inheriting an abnormal number of chromosomes, a condition that occurs frequently in cancer cells. Cells must significantly expand their apical area and transition from a polygonal to circular apical shape to achieve robust mitotic rounding in epithelial tissues, which is where most cancers initiate. However, how cells mechanically regulate robust mitotic rounding within packed tissues is unknown. Here, we analyze mitotic rounding using a newly developed multi-scale subcellular element computational model that is calibrated using experimental data...
May 22, 2017: PLoS Computational Biology
https://www.readbyqxmd.com/read/28531152/genetic-testing-among-children-in-a-complex-care-program
#18
Krista Oei, Robin Z Hayeems, Wendy J Ungar, Ronald D Cohn, Eyal Cohen
Little is known about the pattern of genetic testing and frequency of genetic diagnoses among children enrolled in structured complex care programs (CCPs). Such information may inform the suitability of emerging genome diagnostics for this population. The objectives were to describe the proportion of children with undiagnosed genetic conditions despite genetic testing and measure the testing period, types and costs of genetic tests used. A retrospective analysis of 420 children enrolled in Toronto's Hospital for Sick Children's CCP from January 2010 until June 2014 was conducted...
May 22, 2017: Children
https://www.readbyqxmd.com/read/28531131/the-role-of-interleukin-18-oxidative-stress-and-metabolic-syndrome-in-alzheimer-s-disease
#19
REVIEW
Johanna O Ojala, Elina M Sutinen
The role of interleukins (ILs) and oxidative stress (OS) in precipitating neurodegenerative diseases including sporadic Alzheimer's disease (AD), requires further clarification. In addition to neuropathological hallmarks-extracellular neuritic amyloid-β (Aβ) plaques, neurofibrillary tangles (NFT) containing hyperphosphorylated tau and neuronal loss-chronic inflammation, as well as oxidative and excitotoxic damage, are present in the AD brain. The pathological sequelae and the interaction of these events during the course of AD need further investigation...
May 21, 2017: Journal of Clinical Medicine
https://www.readbyqxmd.com/read/28531117/immunobiology-of-newcastle-disease-virus-and-its-use-for-prophylactic-vaccination-in-poultry-and-as-adjuvant-for-therapeutic-vaccination-in-cancer-patients
#20
REVIEW
Volker Schirrmacher
Newcastle disease (ND) is one of the most important diseases of poultry worldwide. In the last decades, molecular research has gained a lot of new information about its causative agent, newcastledisease virus (NDV). In poultry industry, certain strains of NDV have been used for preventive vaccination for more than 60 years. NDV has also been applied to cancer patients with beneficial effects for about 50 years, but this is less well known. The molecular basis for these differential effects of NDV in birds and man have been elucidated in the last decades and are explained in this review...
May 20, 2017: International Journal of Molecular Sciences
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