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https://www.readbyqxmd.com/read/27915469/myd88-cd79b-and-card11-gene-mutations-in-cd5-positive-diffuse-large-b-cell-lymphoma
#1
Toshifumi Takeuchi, Motoko Yamaguchi, Kyoko Kobayashi, Kana Miyazaki, Isao Tawara, Hiroshi Imai, Ryoichi Ono, Tetsuya Nosaka, Kyosuke Tanaka, Naoyuki Katayama
BACKGROUND: CD5-positive (CD5(+) ) diffuse large B-cell lymphoma (DLBCL) is characterized by frequent central nervous system recurrence and a predominant activated B-cell-like nature. Primary DLBCL in sanctuary sites (DLBCL-SS) also demonstrates these features, and >70% of patients harbor myeloid differentiation primary response 88 (MYD88) (L265P) and CD79B mutations. The objective of the current study was to elucidate a possible relationship between CD5(+) DLBCL and DLBCL-SS. METHODS: MYD88, CD79B, CD79A, and caspase recruitment domain family member 11 (CARD11) mutations were examined in samples from 40 patients with CD5(+) DLBCL...
December 4, 2016: Cancer
https://www.readbyqxmd.com/read/27915419/necrotizing-meningoencephalitis-caused-by-sarcocystis-falcatula-in-bare-faced-ibis-phimosus-infuscatus
#2
Guilherme Konradt, Matheus Viezzer Bianchi, Ronaldo Viana Leite-Filho, Bruna Zafalon da Silva, Rodrigo Martins Soares, Saulo Petinatti Pavarini, David Driemeier
The infection by S. falcatula is commonly associated with respiratory disease in captive psittacine birds, with a few case reports of this protozoan causing encephalitis in wild birds. We describe the clinical, pathological, and molecular aspects of an infection by S. falcatula in a bare-faced ibis (Phimosus infuscatus). Clinically, wing paralysis and mild motor incoordination were observed. At necropsy, the telencephalic cortex showed multifocal to coalescing yellowish soft areas. Histologically, multifocal to coalescent nonsuppurative necrotizing meningoencephalitis of telencephalic cortex, cerebellum, and brainstem was observed...
December 3, 2016: Parasitology Research
https://www.readbyqxmd.com/read/27915283/distributions-and-relationships-of-virio-and-pico-plankton-in-the-epi-meso-and-bathy-pelagic-zones-of-the-western-pacific-ocean
#3
Yantao Liang, Yongyu Zhang, Yao Zhang, Tingwei Luo, Richard B Rivkin, Nianzhi Jiao
Virio- and pico-plankton mediate important biogeochemical processes and the environmental factors which regulates their dynamics and the virus-host interactions are incompletely known, especially in the deep sea. Here we report on their distributions and relationships with environmental factors at 21 stations covering a latitudinal range (2-23(o) N) in the Western Pacific Ocean. This region is characterized by a complex western boundary current system. Synechococcus, autotrophic picoeukaryotes, heterotrophic prokaryotes and virus-like particles (VLPs) were high (<2...
December 2, 2016: FEMS Microbiology Ecology
https://www.readbyqxmd.com/read/27915271/changes-in-renal-gene-expression-associated-with-induced-ochratoxicosis-in-chickens-activation-and-deactivation-of-transcripts-after-varying-durations-of-exposure
#4
Cynthia P Zeferino, Kevin D Wells, Ana Silvia A M T Moura, George E Rottinghaus, David R Ledoux
Exposure to ochratoxin A (OTA) can lead to changes in global gene expression. This study investigated the individual expression of genes turned on and off in renal cells of chicks after different durations of exposure to dietary OTA. One hundred and eighty day-old male broiler chicks (Ross 308) were randomly assigned to a 3 × 3 factorial arrangement of treatments (3 levels of OTA: 0, 1 and 2 mg OTA/kg diet and 3 time periods: 7, 14 and 21 d). Birds were allocated to 36 pens (4 replicate pens of 5 birds each per treatment)...
December 3, 2016: Poultry Science
https://www.readbyqxmd.com/read/27915237/placental-morphology-in-fetal-alcohol-spectrum-disorders
#5
Marlene Tai, Anna Piskorski, Jennifer C W Kao, Lynn A Hess, Suzanne M de la Monte, Füsun Gündoğan
AIMS: Maternal alcohol drinking adversely affects pregnancy outcome. Although fetal health and development are highly dependent upon the integrity of placentation, little is known about placental morphology following gestational exposure to alcohol in humans. METHODS: In this clinical study, subjects were recruited between 2010 and 2013 from an outpatient substance abuse and mental health treatment center for women. Data collected included maternal age, substance abuse history, comorbidities, pregnancy outcomes, gestational age at delivery, birth weight and placental weight...
December 3, 2016: Alcohol and Alcoholism: International Journal of the Medical Council on Alcoholism
https://www.readbyqxmd.com/read/27915139/impairment-of-fetal-hematopoietic-stem-cell-function-in-the-absence-of-fancd2
#6
Sakiko Suzuki, Ronny R Racine, Nathan A Manalo, Sharon B Cantor, Glen D Raffel
Fanconi Anemia (FA), results from mutations in genes necessary for DNA damage repair and often leads to progressive bone marrow failure. Although the exhaustion of the bone marrow leads to cytopenias in FA patients as they age, evidence from human FA and mouse model fetal livers suggests hematopoietic defects originate in utero which may lead to deficient seeding of the bone marrow. To address this possibility, we examined the consequences of loss of Fancd2, a central component of the FA pathway. Examination of E14...
November 30, 2016: Experimental Hematology
https://www.readbyqxmd.com/read/27914982/nanotopography-controls-cell-cycle-changes-involved-with-skeletal-stem-cell-self-renewal-and-multipotency
#7
Louisa C Y Lee, Nikolaj Gadegaard, María C de Andrés, Lesley-Anne Turner, Karl V Burgess, Stephen J Yarwood, Julia Wells, Manuel Salmeron-Sanchez, Dominic Meek, Richard O C Oreffo, Matthew J Dalby
In culture isolated bone marrow mesenchymal stem cells (more precisely termed skeletal stem cells, SSCs) spontaneously differentiate into fibroblasts, preventing the growth of large numbers of multipotent SSCs for use in regenerative medicine. However, the mechanisms that regulate the expansion of SSCs, while maintaining multipotency and preventing fibroblastic differentiation are poorly understood. Major hurdles to understanding how the maintenance of SSCs is regulated are (a) SSCs isolated from bone marrow are heterogeneous populations with different proliferative characteristics and (b) a lack of tools to investigate SSC number expansion and multipotency...
November 24, 2016: Biomaterials
https://www.readbyqxmd.com/read/27914857/imidacloprid-induces-various-toxicological-effects-related-to-the-expression-of-3%C3%AE-hsd-nr5a1-and-ogg1-genes-in-mature-and-immature-rats
#8
Amany Abdel-Rahman Mohamed, Wafaa A M Mohamed, Safaa I Khater
This study aimed to evaluate the adverse effects of the insecticide imidacloprid (IMI) on male spermatogenesis, steroidogenesis, and DNA damage in sexually mature and immature rats. Forty male rats (mature and immature) were equally divided into four groups: two mature and two immature groups. IMI groups of both ages were orally administered IMI in corn oil at a concentration of 1 mg/mL for kg BW/day, whereas their respective controls were orally administered corn oil only (1 mL/kg of body weight) daily for 65 days...
November 30, 2016: Environmental Pollution
https://www.readbyqxmd.com/read/27914753/store-operated-calcium-entry-from-concept-to-structural-mechanisms
#9
REVIEW
Peter B Stathopulos, Mitsuhiko Ikura
In 1986, J.W. Putney presented a model for capacitative calcium (Ca(2+)) entry conveying that depletion of endoplasmic reticulum stored Ca(2+) levels leads to activation of plasma membrane Ca(2+) channels which mediate influx of Ca(2+) from the extracellular space into cells. Presently, the biomolecules regulating this process, more widely known as store operated Ca(2+) entry (SOCE) which is vital to myriad signaling pathways in health and disease, are known and the focus of intense structural biology research aiming to illuminate the atomic mechanisms of function...
November 25, 2016: Cell Calcium
https://www.readbyqxmd.com/read/27914701/il-2-anti-il-2-complexes-ameliorate-lupus-nephritis-by-expansion-of-cd4-cd25-foxp3-regulatory-t%C3%A2-cells
#10
Ji-Jing Yan, Jae-Ghi Lee, Joon Young Jang, Tai Yeon Koo, Curie Ahn, Jaeseok Yang
Adoptive transfer of regulatory T cells (Tregs) can delay disease progression and reduce mortality in lupus-prone mice. Here, we tested whether complex (IL-2C) consisting of IL-2 and anti-IL-2 monoclonal antibody (JES6-1) ameliorates lupus nephritis by expanding Tregs as an alternative to problematic Treg infusion therapy. IL-2C treatment of NZB/W F1 mice induced an effective and sustained expansion of CD4(+)CD25(+)Foxp3(+) Tregs in both the kidneys and spleen along with decreased renal infiltration of T cells, B cells, and innate immune cells...
November 30, 2016: Kidney International
https://www.readbyqxmd.com/read/27914690/c1q-as-an-autocrine-and-paracrine-regulator-of-cellular-functions
#11
REVIEW
Berhane Ghebrehiwet, Kinga H Hosszu, Ellinor I B Peerschke
Most of the complement proteins in circulation are, by and large, synthesized in the liver. However data accumulated over the past several decades provide incontrovertible evidence that some if not most of the individual complement proteins are also synthesized extrahepatically by activated as well as non-activated cells. The question that is finally being addressed by various investigators is: are the locally synthesized proteins solely responsible for the myriad of biological functions in situ without the contribution of systemic complement? The answer is probably "yes"...
November 30, 2016: Molecular Immunology
https://www.readbyqxmd.com/read/27914621/glycolipid-crosslinking-is-required-for-cholera-toxin-to-partition-into-and-stabilize-ordered-domains
#12
Krishnan Raghunathan, Tiffany H Wong, Daniel J Chinnapen, Wayne I Lencer, Michael G Jobling, Anne K Kenworthy
Current models of lipid rafts propose that lipid domains exist as nanoscale compositional fluctuations and these fluctuations can potentially be stabilized into larger domains, consequently better compartmentalizing cellular functions. However, the mechanisms governing stabilized raft assembly and function remain unclear. Here, we test the role of glycolipid crosslinking as a raft targeting and ordering mechanism using the well-studied raft marker cholera toxin B pentamer (CTxB) that binds up to five GM1 glycosphingolipids to enter host cells...
November 30, 2016: Biophysical Journal
https://www.readbyqxmd.com/read/27914519/growth-and-tolerance-of-infants-fed-formula-with-a-new-algal-source-of-docosahexaenoic-acid-double-blind-randomized-controlled-trial
#13
Michael Yeiser, Cheryl L Harris, Ashlee L Kirchoff, Ashley C Patterson, Jennifer L Wampler, Edward N Zissman, Carol Lynn Berseth
Docosahexaenoic acid (DHA) in infant formula at concentrations based on worldwide human milk has resulted in circulating red blood cell (RBC) lipids related to visual and cognitive development. In this study, infants received study formula (17mg DHA/100kcal) with a commercially-available (Control: n=140; DHASCO®) or alternative (DHASCO®-B: n=127) DHA single cell oil from 14 to 120 days of age. No significant group differences were detected for growth rates by gender through 120 days of age. Blood fatty acids at 120 days of age were assessed by capillary column gas chromatography in a participant subset (Control: n=34; DHASCO-B: n=27)...
December 2016: Prostaglandins, Leukotrienes, and Essential Fatty Acids
https://www.readbyqxmd.com/read/27914450/mechanisms-of-inflammatory-injury-of-renal-tubular-cells-in-a-cellular-model-of-pyelonephritis
#14
M A Morosanova, E Y Plotnikov, L D Zorova, I B Pevzner, V A Popkov, D N Silachev, S S Jankauskas, V A Babenko, D B Zorov
Previously, we have assembled a cellular model of pyelonephritis which contains a primary culture of renal tubular epithelial cells, mononuclear leukocytes, and bacterial lysate or lipopolysaccharide. After cocultivation of renal cells with leukocytes and bacterial lysate, proinflammatory changes were observed in the renal cells, followed by nitrosative and oxidative stress and cell death. The interaction of bacterial antigens not only with leukocytes, but also with epithelial cells of the renal tubules, was partially mediated by signaling pathways involving Toll-like receptors (TLR2 and TLR4)...
November 2016: Biochemistry. Biokhimii︠a︡
https://www.readbyqxmd.com/read/27914443/converting-sunlight-into-audible-sound-by-means-of-the-photoacoustic-effect-the-heliophone
#15
N B Roozen, C Glorieux, L Liu, M Rychtáriková, T Van der Donck, A Jacobs
One hundred and thirty-five years after Alexander Graham Bell and his assistant Charles Sumner Tainter explored the photoacoustic effect, and about 40 years after Rosencwaig and Gersho modeled the effect in a photoacoustic cell configuration, the phenomenon is revisited in a "Heliophone" device that converts sunlight into sound. The light is focused on a carbon blackened copper coated Kapton foil in an acoustic cell by means of a compound parabolic collimator, and its intensity is modulated by a mechanical chopper...
September 2016: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/27914293/diethylcarbamazine-attenuates-lps-induced-acute-lung-injury-in-mice-by-apoptosis-of-inflammatory-cells
#16
Ingrid Tavares Fragoso, Edlene Lima Ribeiro, Fabiana Oliveira Dos Santos Gomes, Mariana Aragão Matos Donato, Amanda Karolina Soares Silva, Amanda Costa O de Oliveira, Shyrlene Meiry da Rocha Araújo, Karla Patrícia Sousa Barbosa, Laise Aline Martins Santos, Christina Alves Peixoto
BACKGROUND: Acute lung injury (ALI) is characterized by extensive neutrophil infiltration, and apoptosis delay considered part of the pathogenesis of the condition. Despite great advances in treatment strategies, few effective therapies are known for ALI. Diethylcarbamazine (DEC) is used against lymphatic filariasis, a number of studies have described its anti-inflammatory activities and pro-apoptotic effect. These properties have been associated with nuclear factor kappa-B inactivation...
September 24, 2016: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/27914256/the-effect-of-sambucus-nigra-l-extract-and-phytosinthesized-gold-nanoparticles-on-diabetic-rats
#17
Razvan Opris, Corina Tatomir, Diana Olteanu, Remus Moldovan, Bianca Moldovan, Luminita David, Andras Nagy, Nicoleta Decea, Mihai Ludovic Kiss, Gabriela Adriana Filip
Nanomaterials such as gold nanoparticles (NPs) conjugated with natural products have shown good results in lowering the glycated hemoglobin and have an anti-inflamatory effect. The aim of our study is to evaluate the antidiabetic effect of NPs functionalized with Sambucus nigra L. (SN) extract on experimental model of diabetes in rats. Diabetes was induced to 18 Wistar male rats (n=6) by a single intramuscular injection of streptozotocin (30mg/kg body weight - b.w.). SN extract (15mg/kg b.w.), NPs (0.3mg/kg b...
November 27, 2016: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/27914199/filamin-a-synaptic-organizer-in-drosophila-determines-glutamate-receptor-composition-and-membrane-growth
#18
GaYoung Lee, Thomas L Schwarz
Filamin is a scaffolding protein that functions in many cells as an actin-crosslinker. FLN90, an isoform of the Drosophila ortholog Filamin/cheerio that lacks the actin-binding domain, is here shown to govern the growth of postsynaptic membrane folds and the composition of glutamate receptor clusters at the larval neuromuscular junction. Genetic and biochemical analyses revealed that FLN90 is present surrounding synaptic boutons. FLN90 is required in the muscle for localization of the kinase dPak and, downstream of dPak, for localization of the GTPase Ral and the exocyst complex to this region...
December 3, 2016: ELife
https://www.readbyqxmd.com/read/27914080/immobilization-techniques-of-bacteria-for-live-super-resolution-imaging-using-structured-illumination-microscopy
#19
Amy L Bottomley, Lynne Turnbull, Cynthia B Whitchurch, Elizabeth J Harry
Advancements in optical microscopy technology have allowed huge progression in the ability to understand protein structure and dynamics in live bacterial cells using fluorescence microscopy. Paramount to high-quality microscopy is good sample preparation to avoid bacterial cell movement that can result in motion blur during image acquisition. Here, we describe two techniques of sample preparation that reduce unwanted cell movement and are suitable for application to a number of bacterial species and imaging methods...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27914001/subtilosin-prevents-biofilm-formation-by-inhibiting-bacterial-quorum-sensing
#20
Ammar Algburi, Saskia Zehm, Victoria Netrebov, Anzhelica B Bren, Vladimir Chistyakov, Michael L Chikindas
Subtilosin, the cyclic lantibiotic protein produced by Bacillus subtilis KATMIRA1933, targets the surface receptor and electrostatically binds to the bacterial cell membrane. In this study, subtilosin was purified using ammonium sulfate ((NH4)2SO4) precipitation and purified via column chromatography. Subtilosin's antibacterial minimum and sub-minimum inhibitory concentrations (MIC and sub-MIC) and anti-biofilm activity (biofilm prevention) were established. Subtilosin was evaluated as a quorum sensing (QS) inhibitor in Gram-positive bacteria using Fe(III) reduction assay...
December 2, 2016: Probiotics and Antimicrobial Proteins
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