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https://www.readbyqxmd.com/read/28634266/30-years-of-the-mineralocorticoid-receptor-the-brain-mineralocorticoid-receptor-a-saga-in-three-episodes
#1
REVIEW
Marian Joëls, E Ronald de Kloet
In 1968, Bruce McEwen discovered that (3)H-corticosterone administered to adrenalectomised rats is retained in neurons of hippocampus rather than those of hypothalamus. This discovery signalled the expansion of endocrinology into the science of higher brain regions. With this in mind, our contribution highlights the saga of the brain mineralocorticoid receptor (MR) in three episodes. First, the precloning era dominated by the conundrum of two types of corticosterone-binding receptors in the brain, which led to the identification of the high-affinity corticosterone receptor as the 'promiscuous' MR cloned in 1987 by Jeff Arriza and Ron Evans in addition to the classical glucocorticoid receptor (GR)...
July 2017: Journal of Endocrinology
https://www.readbyqxmd.com/read/28627832/molecular-epidemiological-traits-of-group-a-rotaviruses-in-japanese-children-during-transitional-period-of-rotavirus-vaccine-implementation-2011-2014
#2
Sayaka Takanashi, Aksara Thongprachum, Shoko Okitsu, Shuichi Nishimura, Masaaki Kobayashi, Hideaki Kikuta, Atsuko Yamamoto, Kumiko Sugita, Tsuneyoshi Baba, Satoshi Hayakawa, Masashi Mizuguchi, Hiroshi Ushijima
BACKGROUND: Group A rotavirus (RVA) vaccines have been introduced in Japan since 2011. To investigate the molecular epidemiological traits of RVA during the transitional period of rotavirus vaccine implementation in Japan, this study was undertaken by following up three-decade long surveillance conducted in the same regions. METHODS: RVA were screened and genotyped by RT-PCR from diarrheal samples collected from non-hospitalized patients in six localities (Hokkaido, Tokyo, Shizuoka, Osaka, Kyoto, and Saga) during 2011 - 2014...
May 1, 2017: Clinical Laboratory
https://www.readbyqxmd.com/read/28625726/pulmonary-administration-of-soluble-antigen-arrays-is-superior-to-antigen-in-treatment-of-experimental-autoimmune-encephalomyelitis
#3
Christopher Kuehl, Sharadvi Thati, Bradley Sullivan, Joshua Sestak, Michael Thompson, Teruna Siahaan, Cory Berkland
Antigen-specific immunotherapy (ASIT) has been used to hyposensitize patients to allergens and offers an enticing approach for attenuating autoimmune diseases. Applying ASIT to mucosal surfaces such as the lungs may engage unique immune response pathways to improve efficacy. Pulmonary delivery of soluble antigen arrays (SAgAs) was explored in mice with experimental autoimmune encephalomyelitis (EAE), a multiple sclerosis model. SAgAs were designed to impede immune response to autoantigen epitopes and are composed of a hyaluronan backbone with peptides PLP139-151 and LABL, a disease-causing proteolipid peptide epitope and an ICAM-1 ligand, respectively...
June 15, 2017: Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28604753/let-7b-and-let-7c-micrornas-promote-histone-h2b-ubiquitylation-and-inhibit-cell-migration-by-targeting-multiple-components-of-the-h2b-deubiquitylation-machinery
#4
A Spolverini, G Fuchs, D R Bublik, M Oren
Monoubiquitylation of histone H2B (H2Bub1) is catalyzed mainly by the RNF20/RNF40 complex and erased by multiple deubiquitylating enzymes (DUBs). H2Bub1 influences many aspects of chromatin function, including transcription regulation and DNA repair. Cancer cells often display reduced levels of H2Bub1, and this reduction may contribute to cancer progression. The let-7 family of microRNAs (miRNAs) comprises multiple members with reported tumor-suppressive features, whose expression is frequently downregulated in cancer...
June 12, 2017: Oncogene
https://www.readbyqxmd.com/read/28603157/anatomical-and-radiological-analyses-of-l-shaped-kidney-with-vascular-anomalies
#5
Joe Iwanaga, Koichi Watanabe, Tsuyoshi Saga, Nobuhiro Tahara, Yoko Tabira, Ayano Sakuragi, Keiko Kaji, Kiyoshi Takahashi, Koh-Ichi Yamaki
L-shaped kidney is a congenital anomaly. The disorder results in the kidney appearing very similar in shape to horseshoe kidney (also a congenital anomaly), but either the right or left kidney is located at a position lower than the other kidney. In this report, we describe a woman with L-shaped kidney, identified during anatomical dissection, and compare the findings with clinical data obtained before her death. We discuss the embryology of L-shaped kidney based on detailed anatomical data on the kidney and its vascular system obtained by means of gross anatomical, radiological, and histological examinations...
June 12, 2017: Kurume Medical Journal
https://www.readbyqxmd.com/read/28594079/development-of-the-breast-immobilization-system-in-prone-setup-the-effect-of-bra-in-prone-position-to-improve-the-breast-setup-error
#6
Mariko Kawamura, Yoshikazu Maeda, Kazutaka Yamamoto, Shigeyuki Takamatsu, Yoshitaka Sato, Hiroki Minami, Yusuke Saga, Kyo Kume, Yuji Tameshige, Makoto Sasaki, Hiroyasu Tamamura, Kouji Ohta, Yoshiyuki Itoh, Shinji Naganawa
PURPOSE/OBJECTIVE(S): Accurate and reproducible positioning of the breast is difficult due to its deformability and softness; thus, targeting a breast tumor or tumor bed with fractionated radiotherapy using external beam radiation is difficult. The aim of this study was to develop a novel bra to aid in breast immobilization in the prone position. MATERIALS & METHODS: To assess the accuracy of prone position fixation of breast tumors, 33 breast cancer patients with 34 lesions were recruited...
June 8, 2017: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/28593925/intensive-educational-efforts-combined-with-external-quality-assessment-improve-the-preanalytical-phase-in-general-practitioner-offices-and-nursing-homes
#7
Una Ørvim Sølvik, Wenche Iren Bjelkarøy, Kari van den Berg, Anne Lise Saga, Helle Borgstrøm Hager, Sverre Sandberg
BACKGROUND: Errors in the preanalytical phase in clinical laboratories affect patient safety. The aim of this study was to evaluate the effect of intensive educational efforts together with external quality assessment (EQA) of the preanalytical phase from 2013 to 2015 to improve patient identification in primary health care in Norway. In addition, routines for venous and capillary blood sampling were investigated. METHODS: A preanalytical EQA was circulated in 2013 by the Norwegian Quality Improvement of Laboratory Examinations (Noklus) to general practitioner offices and nursing homes (n=2000) to obtain information about important issues to focus on before launching an intensive educational program with courses, posters and visits in 2013-2015...
May 5, 2017: Clinical Chemistry and Laboratory Medicine: CCLM
https://www.readbyqxmd.com/read/28589059/undetected-small-accessory-mental-foramina-using-cone-beam-computed-tomography
#8
Joe Iwanaga, Koichi Watanabe, Tsuyoshi Saga, Shogo Kikuta, Yoko Tabira, Sadaharu Kitashima, Christian Fisahn, Fernando Alonso, R Shane Tubbs, Jingo Kusukawa, Koh-Ichi Yamaki
INTRODUCTION: The accessory foramina could not be identified on some imaging modalities such as surface-rendered images. The purpose of this study was to investigate the ability of surface-rendered images in detecting these foramina. MATERIALS AND METHODS: We analyzed 20 accessory mental foramina (AMF) in nine mandibles removed from cadavers with cone-beam computed tomography (CBCT) and assessed in surface-rendered images. All AMF were divided into three groups depending on their visibility...
May 2, 2017: Curēus
https://www.readbyqxmd.com/read/28585553/nedd4-controls-spermatogonial-stem-cell-homeostasis-and-stress-response-by-regulating-messenger-ribonucleoprotein-complexes
#9
Zhi Zhou, Hiroshi Kawabe, Atsushi Suzuki, Kaori Shinmyozu, Yumiko Saga
P bodies (PBs) and stress granules (SGs) are conserved cytoplasmic aggregates of cellular messenger ribonucleoprotein complexes (mRNPs) that are implicated in mRNA metabolism and play crucial roles in adult stem cell homeostasis and stress responses. However, the mechanisms underlying the dynamics of mRNP granules are poorly understood. Here, we report NEDD4, an E3 ubiquitin ligase, as a key regulator of mRNP dynamics that controls the size of the spermatogonial progenitor cell (SPC) pool. We find that NEDD4 targets an RNA-binding protein, NANOS2, in spermatogonia to destabilize it, leading to cell differentiation...
June 6, 2017: Nature Communications
https://www.readbyqxmd.com/read/28580440/exploiting-a-host-commensal-interaction-to-promote-intestinal-barrier-function-and-enteric-pathogen-tolerance
#10
Virginia A Pedicord, Ainsley A K Lockhart, Kavita J Rangan, Jeffrey W Craig, Jakob Loschko, Aneta Rogoz, Howard C Hang, Daniel Mucida
Commensal intestinal bacteria can prevent pathogenic infection; however, limited knowledge of the mechanisms by which individual bacterial species contribute to pathogen resistance has restricted their potential for therapeutic application. Here, we examined how colonization of mice with a human commensal Enterococcus faecium protects against enteric infections. We show that E. faecium improves host intestinal epithelial defense programs to limit Salmonella enterica serotype Typhimurium pathogenesis in vivo in multiple models of susceptibility...
September 2016: Science Immunology
https://www.readbyqxmd.com/read/28579086/effects-of-exogenous-isoprenoid-diphosphates-on-in%C3%A2-vivo-attachment-to-bacteriochlorophyllide-c-in-the-green-sulfur-photosynthetic-bacterium-chlorobaculum-tepidum
#11
Yoshitaka Saga, Hayato Yamashita
Metabolic substitution of the esterifying chain in bacteriochlorophyll (BChl) c in green photosynthetic bacteria grown by supplementation of exogenous alcohols has attracted attentions to study supramolecular structures and biogenesis of major antenna complexes chlorosomes in these bacteria as well as BChl pigment biosynthesis. Actual substrates in the enzymatic attachment of the esterifying moieties to the precursor of BChl c, namely bacteriochlorophyllide (BChlide) c, in these bacteria are believed to be diphosphate esters of alcoholic substrates, although only intact alcohols have so far been supplemented in the bacterial cultures...
May 31, 2017: Journal of Bioscience and Bioengineering
https://www.readbyqxmd.com/read/28568901/the-replicative-lifespan-extending-deletion-of-sgf73-results-in-altered-ribosomal-gene-expression-in-yeast
#12
Amanda G Mason, Renee M Garza, Mark A McCormick, Bhumil Patel, Brian K Kennedy, Lorraine Pillus, Albert R La Spada
Sgf73, a core component of SAGA, is the yeast orthologue of ataxin-7, which undergoes CAG-polyglutamine repeat expansion leading to the human neurodegenerative disease spinocerebellar ataxia type 7 (SCA7). Deletion of SGF73 dramatically extends replicative lifespan (RLS) in yeast. To further define the basis for Sgf73-mediated RLS extension, we performed ChIP-Seq, identified 388 unique genomic regions occupied by Sgf73, and noted enrichment in promoters of ribosomal protein (RP)-encoding genes. Of 388 Sgf73 binding sites, 33 correspond to 5' regions of genes implicated in RLS extension, including 20 genes encoding RPs...
May 31, 2017: Aging Cell
https://www.readbyqxmd.com/read/28556262/the-test-of-time-a-history-of-clock-drawing
#13
REVIEW
Elias Hazan, Frances Frankenburg, Megan Brenkel, Kenneth Shulman
OBJECTIVE: The clock drawing test (CDT) has become one of the most widely used cognitive screening instruments in clinical and research settings. Its effectiveness, acceptability, and quick and easy administration have made it a staple for cognitive screening in dementia and a wide range of brain disorders. Despite a spike in popularity since the 1990s, its origins are relatively unknown. The goal of this review is to chronicle its saga and chart its usage over time. METHODS: PsycInfo, Medline, and PubMed literature searches were performed from earliest record to June 2016, in addition to manual cross-referencing of bibliographies, with a focus before 1990...
May 26, 2017: International Journal of Geriatric Psychiatry
https://www.readbyqxmd.com/read/28549630/-the-successful-saga-of-percutaneous-pulmonary-valvulation-in-congenital-heart-diseases
#14
Sophie Malekzadeh-Milani, Younes Boudjemline
With new surgical techniques, more and more complex congenital heart defects are treated requiring sometimes right ventricle to pulmonary artery conduit implantation. In order to extend RV to PA conduit lifespan, 15 years ago a valved stent was developed. The implantation technique was progressively standardized to decrease risks of procedural complications. Medium and long-term hemodynamic results of the stent were so good that indications were broadened to native or complex right ventricular outflow tracts...
May 23, 2017: La Presse Médicale
https://www.readbyqxmd.com/read/28547783/aortic-arch-origin-of-the-left-vertebral-artery-an-anatomical-and-radiological-study-with-significance-for-avoiding-complications-with-anterior-approaches-to-the-cervical-spine
#15
Gabrielle G Tardieu, Bryan Edwards, Fernando Alonso, Koichi Watanabe, Tsuyoshi Saga, Moriyoshi Nakamura, Mayuko Motomura, Raghu Sampath, Joe Iwanaga, Oded Goren, Stephen Monteith, Rod J Oskouian, Marios Loukas, R Shane Tubbs
INTRODUCTION: Complications from anterior approaches to the cervical spine are uncommon with normal anatomy. However, variant anatomy might predispose one to an increased incidence of injury during such procedures. We hypothesized that left vertebral arteries that arise from the aortic arch instead of the subclavian artery might take a more medial path in their ascent making them more susceptible to iatrogenic injury. MATERIALS AND METHODS: Fifty human adult cadavers were examined for left vertebral arteries having an aortic arch origin and these were dissected along their entire cervical course...
May 25, 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/28528219/the-ongoing-saga-of-the-mechanism-s-of-mhc-class-i-restricted-cross-presentation
#16
Jeff E Grotzke, Debrup Sengupta, Qiao Lu, Peter Cresswell
Cross-presentation is an MHC-I antigen processing pathway that results in the presentation of peptides from exogenous viral, bacterial, parasitic, and tumor antigens and ultimately leads to priming of naïve CD8(+) T cells. This process involves several cellular compartments and multiple components. Successful generation of MHC-I-peptide complexes requires that these components act together in a coordinated fashion. We discuss recent findings on the source of MHC-I, the role of the TAP transporter, the importance of intracellular trafficking events, mechanisms of antigen access the cytosol, and how innate immune signals can affect presentation, with an emphasis on how these pathways compare to conventional antigen presentation and how they correlate with existing data...
May 18, 2017: Current Opinion in Immunology
https://www.readbyqxmd.com/read/28497793/image-guided-genomics-of-phenotypically-heterogeneous-populations-reveals-vascular-signalling-during-symbiotic-collective-cancer-invasion
#17
J Konen, E Summerbell, B Dwivedi, K Galior, Y Hou, L Rusnak, A Chen, J Saltz, W Zhou, L H Boise, P Vertino, L Cooper, K Salaita, J Kowalski, A I Marcus
Phenotypic heterogeneity is widely observed in cancer cell populations. Here, to probe this heterogeneity, we developed an image-guided genomics technique termed spatiotemporal genomic and cellular analysis (SaGA) that allows for precise selection and amplification of living and rare cells. SaGA was used on collectively invading 3D cancer cell packs to create purified leader and follower cell lines. The leader cell cultures are phenotypically stable and highly invasive in contrast to follower cultures, which show phenotypic plasticity over time and minimally invade in a sheet-like pattern...
May 12, 2017: Nature Communications
https://www.readbyqxmd.com/read/28482463/nanoencapsulation-of-lutein-and-its-effect-on-mice-s-declarative-memory
#18
Jéssica Thaís do Prado Silva, Júlia Maria Tonin Geiss, Sara Marchesan Oliveira, Evelyne da Silva Brum, Sara Cristina Sagae, Daniela Becker, Fernanda Vitória Leimann, Rafael Porto Ineu, Gustavo Petri Guerra, Odinei Hess Gonçalves
Lutein is a xanthophyll carotenoid widely known by its biological properties and low toxicity. When located in the brain, lutein may inhibit damage mechanisms, acting in neural cells maintenance. However, this carotenoid is very sensitive to external agents such as heat, light, pH and oxidation, besides presenting low absorption in gastrointestinal tract due its low solubility in water. Encapsulation procedures have shown promising results to increase lutein stability and bioavailability. In this work, lutein was encapsulated in polyvinylpyrrolidone (PVP) matrix by the dissolution in common solvent method...
July 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28482173/evaluation-of-a-combination-tumor-treatment-using-thermo-triggered-liposomal-drug-delivery-and-carbon-ion-irradiation
#19
Daisuke Kokuryo, Ichio Aoki, Eiji Yuba, Kenji Kono, Sadahito Aoshima, Jeff Kershaw, Tsuneo Saga
The combination of radiotherapy with chemotherapy is one of the most promising strategies for cancer treatment. Here, a novel combination strategy utilizing carbon ion irradiation as a high-linear energy transfer (LET) radiotherapy and a thermo-triggered nanodevice is proposed, and drug accumulation in the tumor and treatment effects are evaluated using magnetic resonance imaging relaxometry and immunohistology (Ki-67, n = 15). The thermo-triggered liposomal anticancer nanodevice was administered into colon-26 tumor-grafted mice, and drug accumulation and efficacy was compared for 6 groups (n = 32) that received or did not receive the radiotherapy and thermo trigger...
April 21, 2017: Translational Research: the Journal of Laboratory and Clinical Medicine
https://www.readbyqxmd.com/read/28474886/multivalent-soluble-antigen-arrays-exhibit-high-avidity-binding-and-modulation-of-b-cell-receptor-mediated-signaling-to-drive-efficacy-against-experimental-autoimmune-encephalomyelitis
#20
Brittany L Hartwell, Chad J Pickens, Martin Leon, Cory Berkland
A pressing need exists for antigen-specific immunotherapies (ASIT) that induce selective tolerance in autoimmune disease while avoiding deleterious global immunosuppression. Multivalent soluble antigen arrays (SAgAPLP:LABL), consisting of a hyaluronic acid (HA) linear polymer backbone cografted with multiple copies of autoantigen (PLP) and cell adhesion inhibitor (LABL) peptides, are designed to induce tolerance to a specific multiple sclerosis (MS) autoantigen. Previous studies established that hydrolyzable SAgAPLP:LABL, employing a degradable linker to codeliver PLP and LABL, was therapeutic in experimental autoimmune encephalomyelitis (EAE) in vivo and exhibited antigen-specific binding with B cells, targeted the B cell receptor (BCR), and dampened BCR-mediated signaling in vitro...
May 17, 2017: Biomacromolecules
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