2,955,038 results match your criteria Biological psychiatry[Journal]


Infection of HeLa cells with Chlamydia trachomatis inhibits protein synthesis and causes multiple changes to host cell pathways.

Cell Microbiol 2018 Dec 14:e12993. Epub 2018 Dec 14.

Institute for Microbiology and Hygiene, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Germany.

The obligate intracellular bacterium Chlamydia trachomatis replicates in a cytosolic vacuole in human epithelial cells. Infection of human cells with C. trachomatis causes substantial changes to many host cell signalling pathways but the molecular basis of such influence is not well understood. Read More

View Article
December 2018

[Failure Prevention and Management of Complications after Proximal Femoral Fractures].

Z Orthop Unfall 2018 Dec 14;156(6):725-740. Epub 2018 Dec 14.

Background: Proximal femoral fractures belong to the most common fractures, especially of the elderly. There is a high load of cases and most of them have to be treated surgically. With 20% and above, the rate of complications is very high. Read More

View Article
December 2018

Polychaete mucopolysaccharide alters sediment microbial diversity and stimulates ammonia-oxidising functional groups.

FEMS Microbiol Ecol 2018 Dec 14. Epub 2018 Dec 14.

Marine Biological Association of the United Kingdom, The Laboratory, Citadel Hill, Plymouth, PL1 2PB.

Sediment nitrogen cycling is a network of microbially-mediated biogeochemical processes that are vital in regulating ecosystem functioning. Mucopolysaccharides (mucus) are produced by many invertebrates and have the potential to be an important source of organic carbon and nitrogen to sediment microorganisms. At present, we have limited understanding of how mucopolysaccharide moderates total sediment microbial communities and specific microbial functional groups that drive nitrogen cycling processes. Read More

View Article
December 2018
1 Read

In vitro breeding: application of embryonic stem cells to animal production.

Biol Reprod 2018 Dec 14. Epub 2018 Dec 14.

Department of Animal Science, University of California, Davis, CA.

Embryonic stem cells (ESCs) are derived from the inner cell mass of preimplantation blastocysts. For decades, attempts to efficiently derive ESCs in animal livestock species have been unsuccessful, but this goal has recently been achieved in cattle. Together with the recent reconstitution of the germ cell differentiation processes from ESCs in mice, these achievements open new avenues for the development of promising technologies oriented toward improving health, animal production and the environment. Read More

View Article
December 2018

CRISPR-C: circularization of genes and chromosome by CRISPR in human cells.

Nucleic Acids Res 2018 Dec;46(22):e131

Department of Biomedicine, Aarhus University, Denmark.

Extrachromosomal circular DNA (eccDNA) and ring chromosomes are genetic alterations found in humans with genetic disorders. However, there is a lack of genetic engineering tools to recapitulate and study the biogenesis of eccDNAs. Here, we created a dual-fluorescence biosensor cassette, which upon the delivery of pairs of CRISPR/Cas9 guide RNAs, CRISPR-C, allows us to study the biogenesis of a specific fluorophore expressing eccDNA in human cells. Read More

View Article
December 2018

Eucalyptol Detected by Aeration from the Eggs of the Common Bed Bug (Hemiptera: Cimicidae).

J Econ Entomol 2018 Dec 14. Epub 2018 Dec 14.

USDA-ARS Invasive Insect Biocontrol and Behavior Laboratory, Beltsville.

To determine whether volatiles from bed bug eggs were similar to the defensive secretions from nymphs and adults, headspace volatiles from eggs of the common bed bug (Cimex lectularius L.) were collected by aeration, daily until hatch, and subsequently analyzed by gas chromatography-mass spectrometry. We now report that eucalyptol (1,8-epoxy-p-menthane) was identified from all egg samples. Read More

View Article
December 2018

Elagolix for endometriosis: all that glitters is not gold.

Hum Reprod 2018 Dec 14. Epub 2018 Dec 14.

Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Via Commenda, 12, 20122 Milan, Italy.

Elagolix, an orally active non-peptidic GnRH antagonist, has been approved by the Food and Drug Administration for the management of moderate to severe pain associated with endometriosis. As the degree of ovarian suppression obtained with elagolix is dose-dependent, pain relief may be achieved by modulating the level of hypo-oestrogenism while limiting side effects. Elagolix may thus be considered a novelty in terms of its endocrine and pharmacological properties but not for its impact on the pathogenic mechanisms of endometriosis, as the target of this new drug is, yet again, alteration of the hormonal milieu. Read More

View Article
December 2018

Bacteriome-associated Wolbachia of the parthenogenetic termite Cavitermes tuberosus.

FEMS Microbiol Ecol 2018 Dec 14. Epub 2018 Dec 14.

Evolutionary Biology & Ecology, Université libre de Bruxelles, Avenue F.D. Roosevelt 50, CP 160/12, B-1050 Brussels, Belgium.

Wolbachia has deeply shaped the ecology and evolution of many arthropods, and interactions between the two partners are a continuum ranging from parasitism to mutualism. Non-dispersing queens of the termite Cavitermes tuberosus are parthenogenetically produced through gamete duplication, a mode of ploidy restoration generally induced by Wolbachia. These queens display a bacteriome-like structure in the anterior part of the mesenteron. Read More

View Article
December 2018

Mass spectrometry imaging of low molecular weight metabolites in strawberry fruit (Fragaria x ananassa Duch.) cv. Primoris with Ag nanoparticle enhanced target.

Phytochemistry 2018 Dec 11;159:11-19. Epub 2018 Dec 11.

Rzeszów University of Technology, Faculty of Chemistry, 6 Powstańców Warszawy Ave., 35-959, Rzeszów, Poland.

Strawberry (Fragaria x ananassa Duch., Rosaceae) is the subject of many research studies due to its numerous features such as unique taste, aroma and health qualities. The distribution of low molecular weight metabolites belonging to aldehydes, ketones, alcohols, esters, organic acids, phenolics, amino acids and sugars classes within strawberry fruit cross-section was studied using mass spectrometry imaging (MSI) method with Ag nanoparticle enhanced target (AgNPET). Read More

View Article
December 2018

Physiological response and mineral elements accumulation pattern in Sesuvium portulacastrum L. subjected in vitro to nickel.

Chemosphere 2018 Dec 10;219:463-471. Epub 2018 Dec 10.

Centre de Biotechnologie de Borj Cedria (LR15CBBC02), Laboratoire des Plantes Extrèmophiles, BP 901 2050 Hammam-Lif, Tunisia. Electronic address:

Sesuvium portulacastrum, a halophyte with high tolerance to heavy metals like Cd, Pb and Ni is considered for phytoremediation of metal contaminated saline soils. The tolerance to a selected metal ion could, by hypothesis, be stimulated through in vitro adaptation and regeneration of the plant. Seedlings obtained by in vitro micro-propagation, were exposed to 0, 25 and 50 μM Ni, as NiCl, in agar-based medium for 30 days. Read More

View Article
December 2018

Significant inhibition of photosynthesis and respiration in leaves of Cucumis sativus L. by oxybenzone, an active ingredient in sunscreen.

Chemosphere 2018 Dec 3;219:456-462. Epub 2018 Dec 3.

State Key Laboratory of Crop Biology, China; College of Life Sciences, Shandong Agricultural University, China. Electronic address:

Oxybenzone (OBZ), an active ingredient in most sunscreens, was recently shown to be toxic to humans, corals and other animals. This study is the first to demonstrate that OBZ can significantly inhibit photosynthesis and respiration in the leaves of a higher plant, cucumber. An OBZ suspension content as low as 0. Read More

View Article
December 2018
1 Read

Fabrication of ploydopamine-kaolin supported Ag nanoparticles as effective catalyst for rapid dye decoloration.

Chemosphere 2018 Dec 7;219:400-408. Epub 2018 Dec 7.

College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, PR China.

In this work, silver nanoparticles supported on polydopamine-kaolin composite (PDA-kaolin-Ag) was fabricated by an in-situ reduction method with PDA as both reductant and stabilizer. The morphology, composition, and structure of PDA-kaolin-Ag composite were characterized by transmission electron microscopy (TEM), X-ray powder diffraction (XRD), and X-ray photoelectron spectroscopy (XPS). The catalytic reduction tests confirmed the importance of PDA modification and high catalytic activities of this as-prepared PDA-kaolin-Ag composite towards a model dye Rhodamine B. Read More

View Article
December 2018
1 Read

The growth impairment of salinized fenugreek (Trigonella foenum-graecum L.) plants is associated to changes in the hormonal balance.

J Plant Physiol 2018 Nov 20;232:311-319. Epub 2018 Nov 20.

University of Sciences and Technology Houari Boumediene, Faculty of Biological Sciences, Laboratory of Biology and Physiology of Organisms, BP 32, 16111, El Alia, Algeria.

Fenugreek is a legume cultivated for its medicinal value, especially in arid and semi-arid regions, where soil salinity is an increasing problem. In fact, salinity is one of the major environmental factors limiting plant growth and productivity. Plant hormones are known to play vital roles in the ability of the plants to acclimatize to varying environments by mediating growth, development, and nutrient allocation. Read More

View Article
November 2018

Hepatoprotective benefits of vitamin C against perfluorooctane sulfonate-induced liver damage in mice through suppressing inflammatory reaction and ER stress.

Environ Toxicol Pharmacol 2018 Dec 5;65:60-65. Epub 2018 Dec 5.

College of Pharmacy, Guangxi Medical University, Guangxi, Nanning, 530021, PR China. Electronic address:

Our previous studies show that vitamin C (VC) plays promising hepatoprotection in mice. Intrahepatic exposure of perfluorooctane sulfonate (PFOS) can induce dose-dependent cytotoxicity. However, pharmacology-based assessment of VC on PFOS remains uninvestigated. Read More

View Article
December 2018

Advances and opportunities for the design of self-sufficient and spatially organized cell-free biocatalytic systems.

Curr Opin Chem Biol 2018 Dec 11;49:97-104. Epub 2018 Dec 11.

Heterogeneous biocatalysis laboratory, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH-CSIC), University of Zaragoza, C/ Pedro Cerbuna 12, 50009, Zaragoza, Spain; ARAID, Aragon I+D foundation, Zaragoza, Spain. Electronic address:

During the past decades, biocatalysis has made important contributions to chemical manufacturing by using both whole-cell and cell-free biotransformation reactions. More recently, multi-enzyme systems that can run step-wise reactions in one-pot with high selectivity are increasingly being developed. The use of multiple isolated enzymes to perform a series of reactions offers operational and process advantages over the use of living or resting cells, but such cell free processes need to be optimized to meet industrial productivity and titer requirements. Read More

View Article
December 2018
1 Read

Common genetic variants contribute to incomplete penetrance: evidence from cancer-free BRCA1 mutation carriers.

Eur J Cancer 2018 Dec 11;107:68-78. Epub 2018 Dec 11.

Department of Genetics, Cell Biology and Anatomy, College of Medicine, USA; Cancer Centre and Institute of Translational Medicine, Faculty of Health Sciences, University of Macau, Taipa, Macau, SAR, China. Electronic address:

Purpose: The presence of pathogenic germline mutation in BRCA1 gene is considered as the most penetrant genetic predisposition for breast cancer. However, a portion of BRCA1 mutation carriers never develops breast cancer throughout their lifetime. This phenomenon is called incomplete penetrance. Read More

View Article
December 2018

Comprehensive characterization of in vivo metabolic profile of Polygalae radix based on ultra-high-performance liquid chromatography-tandem mass spectrometry.

J Pharm Biomed Anal 2018 Dec 5;165:173-181. Epub 2018 Dec 5.

National Center of Mass Spectrometry in Changchun and Jilin Province Key Laboratory of Chinese Medicine Chemistry and Mass Spectrometry and Chemical Biology Laboratory, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China; University of Science and Technology of China, Hefei, 230026, China. Electronic address:

In this study, a novel analysis strategy for progressively targeted screening and characterization of drug ingredients from in vitro to in vivo was proposed based on ultra-high performance liquid chromatography-tandem mass spectrometry for comprehensive characterization of in vivo metabolic profile of Polygalae radix (PR). First, an in vitro chemical profile of PR was described with the assistance of UNIFI™ software. The characteristic neutral small molecule losses were summarized to distinguish different chemical structures in the PR extract. Read More

View Article
December 2018

Targeted and untargeted LC-MS polyphenolic profiling and chemometric analysis of propolis from different regions of Croatia.

J Pharm Biomed Anal 2018 Dec 4;165:162-172. Epub 2018 Dec 4.

University of Rijeka, Department of Biotechnology, Centre for high-throughput technologies, Radmile Matejčić 2, 51000 Rijeka, Croatia. Electronic address:

Propolis is a complex biological matrix consisting mostly of plant resins and waxes, and in a small proportion of the herbal secondary metabolites, phenols. Phenols are components that are responsible for biological activities of propolis, however, their qualitative and quantitative composition is strongly influenced by climate and vegetation. Although studies on profiling of propolis samples from different countries have been carried out for some time propolis from Croatia is still not characterized till now. Read More

View Article
December 2018

A new class of diamide scaffold: Design, synthesis and biological evaluation as potent antimitotic agents, tubulin polymerization inhibition and apoptosis inducing activity studies.

Bioorg Chem 2018 Dec 5;84:399-409. Epub 2018 Dec 5.

Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Cairo University, Cairo, Egypt.

A new series of diamide functional compounds has been designed, synthesized and confirmed by spectroscopic methods and elemental analyses. All the synthesized compounds were evaluated for their antiproliferative activity on HepG2 cell line. Compounds 3k and 3l were proved to have potent anticancer activity equipotent or more potent than reference compound Combretastatin A-4. Read More

View Article
December 2018

Synthesis of a new disulfide Fmoc monomer for creating biologically susceptible linkages in peptide nucleic acid oligomers.

Bioorg Chem 2018 Dec 1;84:394-398. Epub 2018 Dec 1.

Department of Chemistry and Biochemistry, Georgia Southern University, Savannah, GA, USA. Electronic address:

Peptide nucleic acids (PNA) are one of many synthetic mimics of DNA and RNA that have found applications as biological probes, as nano-scaffold components, and in diagnostics. In an effort to use PNA as constructs for cellular delivery we investigated the possibility of installing a biologically susceptible disulfide bond in the backbone of a PNA oligomer. Here we report the synthesis of a new abasic Fmoc monomer containing a disulfide bond that can be incorporated into a PNA oligomer (DS-PNA) using standard solid phase peptide synthesis. Read More

View Article
December 2018

Ventilator-associated pneumonia: The central role of transcolonization.

J Crit Care 2018 Dec 6;50:155-161. Epub 2018 Dec 6.

Medical and Surgical Intensive Care Unit, Groupe Hospitalier Paris Saint Joseph, Paris, France; Endotoxins, Structures and Host Response, Department of Microbiology, Institute for Integrative Biology of the Cell, UMR 9891 CNRS-CEA-Paris Saclay University, 98190 Gif-sur-Yvette, France. Electronic address:

Ventilator-associated pneumonia remain frequent and serious diseases since they are associated with considerable crude mortality. Pathophysiology is centered on modifications of regional bacterial flora, especially tracheobronchial tree and oropharyngeal sphere. Bacterial migration from an anatomical area to another seems to be the main explanation of these alterations which are called "transcolonization". Read More

View Article
December 2018

Identification of the full 26 cytochrome P450 (CYP) genes and analysis of their expression in response to benzo[α]pyrene in the marine rotifer Brachionus rotundiformis.

Comp Biochem Physiol Part D Genomics Proteomics 2018 Dec 4;29:185-192. Epub 2018 Dec 4.

Department of Biological Science, College of Science, Sungkyunkwan University, Suwon 16419, South Korea. Electronic address:

Cytochrome P450s (CYPs) are a large gene superfamily that are found in all living organisms. CYPs have a key role in detoxification of xenobiotics and endogenous chemicals. Although aquatic invertebrate CYPs and their detoxification mechanisms have been reported, little is known about interspecific comparison of CYPs and their detoxification mechanism in the rotifer Brachionus spp. Read More

View Article
December 2018

Signal enhanced proteomics: a biological perspective on dissecting the functional organisation of cell proteomes.

Curr Opin Chem Biol 2018 Dec 11;48:114-122. Epub 2018 Dec 11.

Laboratory of Quantitative Proteomics, Centre for Gene Regulation and Expression, School of Life Sciences, University of Dundee, Dundee, DD1 5EH, UK. Electronic address:

Proteomes are highly dynamic and can respond rapidly to environmental and cellular signals. Within cells, proteins often form distinct pools with different functions and properties. However, in quantitative proteomics studies it is common to measure averaged values for proteins that do not reflect variations that may occur between different protein isoforms, different subcellular compartments, or in cells at different cell cycle stages and so on. Read More

View Article
December 2018

Ln(III) chelates-functionalized carbon quantum dots: Synthesis, optical studies and multimodal bioimaging applications.

Colloids Surf B Biointerfaces 2018 Nov 22;175:272-280. Epub 2018 Nov 22.

State Key Laboratory of Environmental and Biological Analysis and Department of Chemistry, Hong Kong Baptist University, Waterloo Road, Hong Kong, China. Electronic address:

The carbon quantum dots termined with amine groups (CQDs-NH) were synthesized in one-pot hydrothermal method with citric acid as carbon source and branched polyethylenimine (BPEI) as passive agent, which was then covalently linked to 1, 4, 7, 10-tetraazacyclononane (DOTA) framework to yield CQDs-DOTA. The CQDs-DOTA provide excellent ligand scaffolds for the chelation of lanthanide ions, yielding the related complexes CQDs-DOTA-Ln (Ln = Eu, Tb, Yb and Gd). The successful preparation of CQDs-DOTA-Ln was validated by TEM, XRD, XPS, and FT-IR spectroscopy. Read More

View Article
November 2018

Near-infrared light control of bone regeneration with biodegradable photothermal osteoimplant.

Biomaterials 2018 Dec 10;193:1-11. Epub 2018 Dec 10.

Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China; Department of Physics and Materials Science, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China. Electronic address:

Mild heat stimulation can promote the restoration of bone defects but unfortunately, the delivery of exo-hyperthermy into human body is not efficient enough. In this study, mild heat-induced osteogenesis with high efficacy is demonstrated on an osteoimplant composed of black phosphorus nanosheets and poly(lactic-co-glycolic acid) (BPs@PLGA) with the participation of near-infrared (NIR) light irradiation. BPs@PLGA with only 0. Read More

View Article
December 2018
1 Read

Antitumor effect of chondroitin AC lyase (PsPL8A) from Pedobacter saltans on melanoma and fibrosarcoma cell lines by in vitro analysis.

Pharmacol Rep 2018 Oct 25;71(1):167-174. Epub 2018 Oct 25.

Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam, India. Electronic address:

Background: PGs are involved in cellular communication and cancer biology. The role of CS in melanoma and fibrosarcoma cell lines was explored by using chondroitin AC lyase (PsPL8A).

Methods: The proliferation of mouse fibroblast L929, human melanoma (SK-Mel 28) and fibrosarcoma (HT-1080) cell lines after treatment with chondroitin AC lyase (PsPL8A) was studied by MTT assay. Read More

View Article
October 2018

Effects of hypoxia-reoxygenation stress on mitochondrial proteome and bioenergetics of the hypoxia-tolerant marine bivalve Crassostrea gigas.

J Proteomics 2018 Dec 11. Epub 2018 Dec 11.

Department of Marine Biology, University of Rostock, Rostock, Germany; Department of Maritime Systems, Interdisciplinary Faculty, University of Rostock, Rostock, Germany.

Mitochondria are key intracellular targets of hypoxia-reoxygenation (H/R) stress due to their central role in generation of ATP and reactive oxygen species (ROS). Intertidal oysters Crassostrea gigas are adapted to frequent H/R cycles and maintain aerobic function despite frequent oxygen fluctuations. To gain insight into the molecular mechanisms of H/R tolerance, we assessed changes in mitochondrial respiration and (phospho)proteome of C. Read More

View Article
December 2018

Identification of B cell epitopes enhanced by protein unfolding and aggregation.

Mol Immunol 2018 Dec 11;105:181-189. Epub 2018 Dec 11.

Lydia Becker Institute of Immunology and Inflammation, School of Biological Sciences, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, The University of Manchester, Oxford Road, Manchester, UK. Electronic address:

Aggregation of therapeutic proteins is a key factor in the generation of unwanted immunogenicity, and can result in reduced serum half-life, neutralization of function and adverse health effects. There is currently little information regarding how aggregates interact with B-cell receptors or cognate antibodies at the protein sequence level, or whether non-native, aggregate-induced epitopes predominate in these interactions. Using an antibody fragment (single chain antibody variable fragment; scFv) that forms aggregates readily at low temperature, anti-scFv IgG antibody responses were generated by intraperitoneal injection of BALB/c strain mice with monomer or aggregate preparations. Read More

View Article
December 2018

Expressions of homeobox, collagen and estrogen genes in women with uterine prolapse.

Eur J Obstet Gynecol Reprod Biol 2018 Nov 29;233:26-29. Epub 2018 Nov 29.

Ankara University, School of Medicine, Department of Biostatistics, Ankara, Turkey.

Objective: Genetic contribution is thought to be involved in the pathophysiology of pelvic organ prolapse (POP). We aimed to study the gene expression profiles of the genes HomeoboxA11 (HOXA11), HomeoboxA13 (HOXA13), Collagen Type I (COL1A), Collagen Type III (COL3A), estrogen receptor genes (ESR1 and ESR2) of round (RL) and uterosacral ligaments (USL) in postmenopausal women with uterine prolapse.

Study Design: Gene expressions of 32 postmenopausal women with prolapse were analysed according to gene expressions of 8 postmenopausal women without prolapse. Read More

View Article
November 2018

Three monophyletic clusters in Retortamonas species isolated from vertebrates.

Parasitol Int 2018 Dec 11. Epub 2018 Dec 11.

Department of Parasitology, Graduate School of Medical Sciences, Kanazawa University, Kanazawa 920-8640, Japan. Electronic address:

Retortamonas spp. has been reported as an intestinal parasite among various host organisms, including humans; however, its intra-genus molecular diversity has not yet been elucidated. Haplotypes of the 18S small subunit ribosomal RNA locus (1836-1899 bp) of Retortamonas spp. Read More

View Article
December 2018

Scavenging effect of oxidized biochar against the phytotoxicity of lead ions on hydroponically grown chicory: An anatomical and ultrastructural investigation.

Ecotoxicol Environ Saf 2018 Dec 11;170:363-374. Epub 2018 Dec 11.

Department of Agricultural and Biological Engineering, University of Florida, Gainesville, FL 32611, United States; Department of Soil Science, University of Haripur, Haripur 22620, Khyber Pakhtunkhwa, Pakistan.

To evaluate the scavenging effect of functionalized biochar against the phytotoxicity of Pb, original biochar (O-B) was chemically oxidized with either HNO or KMnO to serve as biofilters (O-BF, HNO-BF and KMnO-BF) to hydroponically grown chicory (Cichorium intybus L. var. intybus). Read More

View Article
December 2018

A plastid phylogeny of the fern genus Arachniodes (Dryopteridaceae).

Mol Phylogenet Evol 2018 Dec 11. Epub 2018 Dec 11.

CAS Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization, Chengdu Institute of Biology, Chinese Academy of Sciences, P.O. Box 416, Chengdu, Sichuan 610041, China; Missouri Botanical Garden,4344 Shaw Blvd., St. Louis, Missouri 63110, U.S.A. Electronic address:

Arachniodes (Dryopteridaceae) is one of the most confusing and controversial fern genera in terms of its circumscription, nomenclature, and taxonomy. Estimates of species number range from 40 to 200. Previous molecular works included only 2-17 accessions representing 2-12 species of Arachniodes and allied genera, leaving most of the Asian species remain unsampled and the infragneric relationships unclear. Read More

View Article
December 2018

Molecular systematics of the Triplophysa robusta (Cobitoidea) complex: extensive gene flow in a depauperate lineage.

Mol Phylogenet Evol 2018 Dec 11. Epub 2018 Dec 11.

Key Laboratory of Adaptation and Evolution of Plateau Biota, and Laboratory of Plateau Fish Evolutionary and Functional Genomics, and Qinghai Key Laboratory of Animal Ecological Genomics, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810008, Qinghai, China. Electronic address:

Gene flow between populations assumed to be isolated frequently leads to incorrect inferences of evolutionary history. Understanding gene flow and its causes has long been a key topic in evolutionary biology. In this study, we explored the evolutionary history of the Triplophysa robusta complex, using a combination of multilocus analyses and coalescent simulation. Read More

View Article
December 2018

Integrating multilocus DNA data and 3D geometric morphometrics to elucidate species boundaries in the case of Pyrenaearia (Pulmonata: Hygromiidae).

Mol Phylogenet Evol 2018 Dec 11. Epub 2018 Dec 11.

Department of Zoology and Animal Cell Biology, Faculty of Pharmacy, University of the Basque Country, EHU/UPV, Paseo de la Universidad 7, 01006 Vitoria-Gasteiz, Araba, Spain; Biodiversity Research Group CIEA Lucio Lascaray, Avda. Miguel de Unamuno 3, 01006, Araba, Spain. Electronic address:

To accurately delimit species the use of multiple character types is essential as all speciation processes are not equally reflected in different data (e.g. morphological, molecular or ecological characters). Read More

View Article
December 2018

Comparison and implementation of different control strategies for improving production of rHSA using Pichia pastoris.

J Biotechnol 2018 Dec 11. Epub 2018 Dec 11.

Department of Chemical Engineering, Indian Institute of Technology, Hauz Khas, New Delhi, India. Electronic address:

Recombinant protein production by various host organisms is strictly regulated, which is determined mainly by host cell genetics and maintenance of process variables within desirable limits in a reactor. Since the process dynamics typically exhibit nonlinear interactions amongst the critical process variables, the commonly employed controllers are suboptimal for control of most bioprocesses. In this article, we present the implementation of an augmented controller for improving the production of recombinant human serum albumin using Pichia pastoris. Read More

View Article
December 2018

CircRNAs and cancer: biomarkers and master regulators.

Semin Cancer Biol 2018 Dec 11. Epub 2018 Dec 11.

Molecular Oncology group, Biodonostia Research Institute, Paseo Doctor Begiristain, s/n San Sebastián, 20014, Spain; Radcliffe Department of Medicine, University of Oxford, John Radcliffe Hospital, Oxford, OX3 9DU, United Kingdom; IKERBASQUE, Basque Foundation for Science, María Díaz Haroko Kalea, 3, 48013, Bilbao, Spain. Electronic address:

Circular RNAs (circRNAs) are a novel class of regulatory RNAs that despite being relatively abundant have only recently begun to be explored. There are many thousands of genes that appear capable of producing circRNAs, however the function of all but a handful remain to be determined. What is emerging about these highly conserved molecules is that they play important roles in biology and cancer biology in particular. Read More

View Article
December 2018

ER stress promotes antitumor effects in BRAFi/MEKi resistant human melanoma induced by natural compound 4-nerolidylcathecol (4-NC).

Pharmacol Res 2018 Dec 11. Epub 2018 Dec 11.

Skin Biology Group, Clinical Chemistry and Toxicology Department, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil. Electronic address:

Melanoma accounts for only 4% of malignant neoplasms of the skin, but is considered the most serious because it is highly deadly. Mutations in the MAPK (Ras-Raf-MEK-ERK) pathway is closely linked to the lack of control of cell proliferation. Especially in melanoma, this pathway has become a target for the development of oncogene-targeted therapies, such as the potent inhibitors of v-Raf murine sarcoma viral oncogene homolog B (BRAFi) and mitogen-activated protein kinase kinase (MEKi). Read More

View Article
December 2018
1 Read

Characterization of locomotor response to psychostimulants in the parthenogenetic marbled crayfish (Procambarus fallax forma virginalis): A promising model for studying the neural and molecular mechanisms of drug addiction.

Behav Brain Res 2018 Dec 11. Epub 2018 Dec 11.

J.P. Scott Center for Neuroscience, Mind & Behavior, and Department of Biological Sciences, Bowling Green State University, Bowling Green, OH 43403, USA.

Although scientific research using mammalian models has made great strides in uncovering the enigmatic neural and molecular mechanisms orchestrating the state of drug addiction, a complete understanding has thus far eluded researchers. The complexity of the task has led to the use of invertebrate model systems to complement the research of drug-induced reward in mammalian systems. Invertebrates, such as crayfish, offer excellent model systems to help reveal the underlying mechanisms of drug addiction as they retain the ancestral neural reward circuit that is evolutionarily conserved across taxa, and they possess relatively few, large neurons, laid out in an accessible, modularly organized nervous system. Read More

View Article
December 2018

Upregulation of the lactate transporter monocarboxylate transporter 1 at the blood-brain barrier in a rat model of attention-deficit/hyperactivity disorder suggests hyperactivity could be a form of self-treatment.

Behav Brain Res 2018 Dec 11. Epub 2018 Dec 11.

The Brain and Muscle Energy Group, Electron Microscopy Laboratory, Department of Oral Biology, University of Oslo, NO-0316 Oslo, Norway; Synaptic Neurochemistry and Amino Acid Transporters Labs, Division of Anatomy, Department of Molecular Medicine, Institute of Basic Medical Sciences (IMB) and Healthy Brain Ageing Centre (SERTA), University of Oslo, NO-0317 Oslo, Norway; Center for Healthy Aging, Department of Neuroscience and Pharmacology, Faculty of Health Sciences, University of Copenhagen, DK-2200 Copenhagen N, Denmark.

The energy deficit hypothesis of attention-deficit/hyperactivity disorder (ADHD) suggests that low lactate production by brain astrocytes causes the symptoms of the disorder. Astrocytes are the main producers of lactate in the brain; however, skeletal muscles can produce the most lactate in the body. The lactate production by skeletal muscles increases with physical activity, as does the expression of the lactate transporter monocarboxylate transporter 1 (MCT1) at the blood-brain barrier (BBB). Read More

View Article
December 2018

Applications of π-π stacking interactions in the design of drug-delivery systems.

J Control Release 2018 Dec 11. Epub 2018 Dec 11.

College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul 08826, Republic of Korea. Electronic address:

Noncovalent forces are of considerable importance in the formation of self-assembled drug-delivery systems. In addition to non-destructively linking the delivery vehicle and guest drug, they provide multiple advantages, including protecting the structure of the drug, maintaining its functional effects, and facilitating its release. In particular, π-π stacking interactions have potential application in a comprehensive range of biomedical and biotechnological fields. Read More

View Article
December 2018

Evaluation of three advanced methodologies, COLD-PCR, microarray and ddPCR, for identifying the mutational status by liquid biopsies in metastatic colorectal cancer patients.

Clin Chim Acta 2018 Dec 11. Epub 2018 Dec 11.

Unit of Genomic for the Diagnosis of Human Pathologies, Division of Genetics and Cell Biology, IRCCS San Raffaele Scientific Institute, Via Olgettina 60, Milan 20132, Italy; Laboratory of Clinical Molecular Biology, IRCCS Ospedale San Raffaele, Milan, Italy; Università Vita-Salute San Raffaele, Milano, Italy.

A major effort has been focused on the detection of oncogenes' mutations in diverse types of clinical specimens including formalin-fixed and paraffin embedded tissues, presently the gold-standard samples, up to plasma, that constitute a noninvasive alternative source of tumor DNA. The reliable detection of mutations in circulating tumor DNA requires a high analytical sensitivity. Here, we applied three different highly sensitive methodologies (COLD-PCR, a microarray-based approach and the droplet digital PCR, ddPCR) to identify mutations in the plasma of 30 metastatic colorectal cancer patients previously genotyped on tissue biopsy. Read More

View Article
December 2018

TLR4 absence reduces neuroinflammation and inflammasome activation in Parkinson's diseases in vivo model.

Brain Behav Immun 2018 Dec 11. Epub 2018 Dec 11.

Department of Chemical, Biological, Pharmacological and Environmental Sciences, University of Messina, Messina, Italy; Department of Pharmacological and Physiological Science, Saint Louis University School of Medicine, USA. Electronic address:

Parkinson's disease (PD) is a progressive, disabling neurodegenerative disorder. It has been shown Toll like receptor (TLR) 4-deficient mice protect against MPTP toxicity, suggesting that dopaminergic cell death is TLR4-dependent. The aim of this study was to demonstrate, in an in vivo model of PD, how TLR4 plays its important role in the pathogenesis of PD by using MPTP neurotoxin model (4 × 20 mg/kg, 2 hr apart, i. Read More

View Article
December 2018

Chronic Adolescent Stress Sex-Specifically Alters Central and Peripheral Neuro-Immune Reactivity in Rats.

Brain Behav Immun 2018 Dec 11. Epub 2018 Dec 11.

Virginia Commonwealth University, Department of Anatomy & Neurobiology, United States. Electronic address:

Adversity during development is a reliable predictor of psychiatric disorders such as depression and anxiety which are increasingly recognized to have an immune component. We have previously demonstrated that chronic adolescent stress (CAS) in rats leads to depressive-like behavior in adulthood along with long-lasting changes to the hypothalamic-pituitary-adrenal axis and pro-inflammatory cytokine induction in the hippocampus. However, the mechanisms by which CAS promotes hippocampal inflammation are not yet defined. Read More

View Article
December 2018

Linking biodiversity to ecosystem services supply: Patterns across aquatic ecosystems.

Sci Total Environ 2018 Dec 3;657:517-534. Epub 2018 Dec 3.

Department of Biology & CESAM, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal.

Global initiatives have been increasingly focusing on mainstreaming the values of biodiversity and ecosystem services into decision-making at all levels. Due to the accelerated rate at which biodiversity is declining and its consequences for the functioning of ecosystems and subsequently, the services they provide, there is need to develop comprehensive assessments of the services and the benefits nature delivers to society. Based on expert evaluation, we identified relevant flow linkages in the supply-side of the socio-ecological system, i. Read More

View Article
December 2018
1 Read

Cellular landmarks of Trypanosoma brucei and Leishmania mexicana.

Mol Biochem Parasitol 2018 Dec 11. Epub 2018 Dec 11.

The Peter Medawar Building for Pathogen Research, University of Oxford, South Parks Road, Oxford, OX1 3SY, UK. Electronic address:

The kinetoplastids Trypanosoma brucei and Leishmania mexicana are eukaryotes with a highly structured cellular organisation that is reproduced with great fidelity in each generation. The pattern of signal from a fluorescently tagged protein can define the specific structure/organelle that this protein localises to, and can be extremely informative in phenotype analysis in experimental perturbations, life cycle tracking, post-genomic assays and functional analysis of organelles. Using the vast coverage of protein subcellular localisations provided by the TrypTag project, an ongoing project to determine the localisation of every protein encoded in the T. Read More

View Article
December 2018

FTY720 inhibits the activation of pancreatic stellate cells by promoting apoptosis and suppressing autophagy via the AMPK/mTOR pathway.

Life Sci 2018 Dec 11. Epub 2018 Dec 11.

Department of Cell and Molecular Biology, Institute of Acute Abdominal Diseases of Integrated Traditional Chinese and Western Medicine, Tianjin Nankai Hospital, Tianjin 300100, China; Nankai Clinical College, Tianjin Medical University, Tianjin 300107, China. Electronic address:

Aims: Pancreatic stellate cells (PSCs) play a critical role in the development of pancreatic fibrosis. Any agents that can affect PSC activation could become potential candidates for treating pancreatic fibrosis. FTY720 can attenuate chronic pancreatic fibrosis by suppressing T-cell infiltration, but its effect on PSCs remains unknown. Read More

View Article
December 2018

Proteomic analyses reveal lower expression of TEX40 and ATP6V0A2 proteins related to calcium ion entry and acrosomal acidification in asthenozoospermic males.

Life Sci 2018 Dec 11. Epub 2018 Dec 11.

Department of Biophysics, All India Institute of Medical Sciences, New Delhi 110029, India. Electronic address:

Aims: Idiopathic nature of male infertility disorder needs to be investigated by different horizons of molecular biology for its treatment and to device male contraceptive. Further, it can also aid in advancement of assisted reproductive technology (ART), as nowadays the failure and disquiets of ART are consistent. Herein, we have attempted to find out proteins responsible for male infertility by comparing proteome profile of sperms collected from normal control and asthenozoospermic (AS) males. Read More

View Article
December 2018

Stromal PTEN Regulates Extracellular Matrix Organization in the Mammary Gland.

Neoplasia 2018 Dec 11;21(1):132-145. Epub 2018 Dec 11.

Department of Biomedical Engineering, College of Engineering, The Ohio State University, Columbus, OH 43210; The James Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210. Electronic address:

The organization of the extracellular matrix has a profound impact on cancer development and progression. The matrix becomes aligned throughout tumor progression, providing "highways" for tumor cell invasion. Aligned matrix is associated with breast density and is a negative prognostic factor in several cancers; however, the underlying mechanisms regulating this reorganization remain poorly understood. Read More

View Article
December 2018

pSSbond-PseAAC: Prediction of disulfide bonding sites by integration of PseAAC and statistical moments.

J Theor Biol 2018 Dec 11. Epub 2018 Dec 11.

Gordon Life Science Institute, Boston, MA 02478, USA.

The structure of protein gains additional stability against various detrimental effects by the presence of disulfide bonds. The formation of correct disulfide bonds between cysteine residues ensures proper in vivo and in vitro folding of the protein. Many cysteine residues can be present in the polypeptide chain of a protein, however, not all cysteine residues are involved in the formation of a disulfide bond, and therefore, accurate prediction of these bonds is crucial for identifying biophysical characteristics of a protein. Read More

View Article
December 2018
  • Page 1 of 59101