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https://www.readbyqxmd.com/read/28935589/early-postnatal-exposure-to-endosulfan-interferes-with-the-normal-development-of-the-male-rat-mammary-gland
#1
Gabriela A Altamirano, Melisa B Delconte, Ayelen L Gomez, Ramiro Alarcón, Verónica L Bosquiazzo, Enrique H Luque, Mónica Muñoz-de-Toro, Laura Kass
Our aim was to evaluate whether postnatal exposure to endosulfan (ENDO) modifies mammary gland (MG) development in pre- and post-pubertal male rats. From postnatal day 1 (PND1) to PND7, male rats were injected subcutaneously every 48h with either corn oil (vehicle) or 600μg ENDO/kg.bw. On PND21 and PND60, MG and blood samples were collected. Estradiol (E2) and testosterone (T) serum levels, MG histology, collagen fiber organization, proliferation index, and estrogen (ESR1) and androgen receptor (AR) expressions were evaluated...
September 18, 2017: Toxicology Letters
https://www.readbyqxmd.com/read/28904199/calcitonin-gene-related-peptide-induces-hiv-1-proteasomal-degradation-in-mucosal-langerhans-cells
#2
Morgane Bomsel, Yonatan Ganor
The neuro-immune dialogue between peripheral neurons and Langerhans cells (LCs) within mucosal epithelia protects against incoming pathogens. LCs rapidly internalize human immunodeficiency virus type 1 (HIV-1) upon its sexual transmission and then trans-infect CD4+ T-cells. We recently found that the neuropeptide calcitonin gene-related peptide (CGRP), secreted mucosally from peripheral neurons, inhibits LCs-mediated HIV-1 trans-infection. Herein, we investigated the mechanism of CGRP-induced inhibition, focusing on HIV-1 degradation in LCs and its interplay with trans-infection...
September 13, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28890400/deglycosylating-enzymes-acting-on-n-glycans-in-fungi-insights-from-a-genome-survey
#3
REVIEW
Georgios Tzelepis, Magnus Karlsson, Tadashi Suzuki
BACKGROUND: N-Glycosylation, one of the most prominent post-translational modifications of proteins, is found in all domains of life, i.e. eukaryotes, bacteria and archaea, and has been shown to play a crucial role in modulating the physicochemical/physiological properties of carrier proteins. Deglycosylating enzymes that act on N-glycans are widely used in analyzing the structures/functions of N-glycans. Fungi are known to produce various deglycosylating enzymes, some of which are fungi-specific...
September 7, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28874462/%C3%AE-arrestin2-improves-post-myocardial-infarction-heart-failure-via-sarco-endo-plasmic-reticulum-ca-2-atpase-dependent-positive-inotropy-in-cardiomyocytes
#4
Katie A McCrink, Jennifer Maning, Angela Vu, Malika Jafferjee, Christine Marrero, Ava Brill, Ashley Bathgate-Siryk, Samalia Dabul, Walter J Koch, Anastasios Lymperopoulos
Heart failure is the leading cause of death in the Western world, and new and innovative treatments are needed. The GPCR (G protein-coupled receptor) adapter proteins βarr (β-arrestin)-1 and βarr-2 are functionally distinct in the heart. βarr1 is cardiotoxic, decreasing contractility by opposing β1AR (adrenergic receptor) signaling and promoting apoptosis/inflammation post-myocardial infarction (MI). Conversely, βarr2 inhibits apoptosis/inflammation post-MI but its effects on cardiac function are not well understood...
September 5, 2017: Hypertension
https://www.readbyqxmd.com/read/28874149/comparison-of-computed-tomography-and-high-field-3-0%C3%A2-t-magnetic-resonance-imaging-of-age-related-variances-in-selected-equine-maxillary-cheek-teeth-and-adjacent-tissues
#5
Christin Schoppe, Maren Hellige, Karl Rohn, Bernhard Ohnesorge, Astrid Bienert-Zeit
BACKGROUND: Modern imaging techniques such as computed tomography (CT) and magnetic resonance imaging (MRI) have the advantage of producing images without superimposition. Whilst CT is a well-established technique for dental diagnostics, MRI examinations are rarely used for the evaluation of dental diseases in horses. Regarding equine endodontic therapies which are increasingly implemented, MRI could help to portray changes of the periodontal ligament and display gross pulpar anatomy...
September 6, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28861818/analysis-of-golgi-mediated-protein-traffic-in-plant-cells
#6
Wenjin Shen, Zhidan Xiao, Jinbo Shen, Caiji Gao
In plant secretory pathways, the Golgi apparatus serves as the major sorting hub to receive de novo synthesized protein from the endoplasmic reticulum for further sorting to post-Golgi compartments or for residence in the cisternae of Golgi stacks. Meanwhile, Golgi functions as a pivotal biochemical factory to make modifications of N-glycans and to produce mature glycoproteins. Fluorescent tag-based confocal microscopy in combination with the brefeldin A drug or the genetic tools to disturb Golgi function have been shown as powerful approaches to analyze Golgi-mediated protein traffic in transiently expressed plant protoplasts or in stably expressed transgenic plants...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28855752/preservation-of-root-canal-anatomy-using-self-adjusting-file-instrumentation-with-glide-path-prepared-by-20-0-02-hand-files-versus-20-0-04-rotary-files
#7
Niharika Jain, Ajinkya M Pawar, Piyush D Ukey, Prashant K Jain, Bhagyashree Thakur, Abhishek Gupta
OBJECTIVES: To compare the relative axis modification and canal concentricity after glide path preparation with 20/0.02 hand K-file (NITIFLEX(®)) and 20/0.04 rotary file (HyFlex™ CM) with subsequent instrumentation with 1.5 mm self-adjusting file (SAF). MATERIALS AND METHODS: One hundred and twenty ISO 15, 0.02 taper, Endo Training Blocks (Dentsply Maillefer, Ballaigues, Switzerland) were acquired and randomly divided into following two groups (n = 60): group 1, establishing glide path till 20/0...
March 2017: Journal of Conservative Dentistry: JCD
https://www.readbyqxmd.com/read/28827815/in-vivo-production-of-non-glycosylated-recombinant-proteins-in-nicotiana-benthamiana-plants-by-co-expression-with-endo-%C3%AE-n-acetylglucosaminidase-h-endo-h-of-streptomyces-plicatus
#8
Tarlan Mamedov, Kader Cicek, Burcu Gulec, Rifat Ungor, Gulnara Hasanova
A plant transient expression system, with eukaryotic post-translational modification machinery, offers superior efficiency, scalability, safety, and lower cost over other expression systems. However, due to aberrant N-glycosylation, this expression system may not be a suitable expression platform for proteins not carrying N-linked glycans in the native hosts. Therefore, it is crucial to develop a strategy to produce target proteins in a non-glycosylated form while preserving their native sequence, conformation and biological activity...
2017: PloS One
https://www.readbyqxmd.com/read/28827099/4d-cardiac-imaging-at-clinical-3-0t-provides-accurate-assessment-of-murine-myocardial-function-and-viability
#9
Lindsey A Crowe, Fabrizio Montecucco, Federico Carbone, Iris Friedli, Anne-Lise Hachulla, Vincent Braunersreuther, François Mach, Jean-Paul Vallée
OBJECTIVES: We validate a 4D strategy tailored for 3T clinical systems to simultaneously quantify function and infarct size in wild type mice after ischemia/reperfusion, with improved spatial and temporal resolution by comparison to previous published protocols using clinical field MRI systems. METHODS: C57BL/6J mice underwent 60min ischemia/reperfusion (n=14) or were controls without surgery (n=6). Twenty-four hours after surgery mice were imaged with gadolinium injection and sacrificed for post-mortem MRI and histology with serum also taken for Troponin I levels...
August 5, 2017: Magnetic Resonance Imaging
https://www.readbyqxmd.com/read/28819902/ablation-therapy-for-barrett-s-esophagus-new-rules-for-changing-times
#10
REVIEW
Nour Hamade, Prateek Sharma
PURPOSE OF REVIEW: In this review, we discuss different endoscopic techniques in the eradication of Barrett's esophagus (BE) as well as some controversies in the field of treatment. RECENT FINDINGS: Patients with T1a esophageal adenocarcinoma and BE of high-grade dysplasia should undergo endoscopic ablative therapy. The most studied technique to date is radiofrequency ablation. It can be combined with endoscopic mucosal resection in cases containing nodular and flat lesions...
August 17, 2017: Current Gastroenterology Reports
https://www.readbyqxmd.com/read/28815184/evaluation-of-risk-factors-for-vertebral-compression-fracture-after-carbon-ion-radiotherapy-for-primary-spinal-and-paraspinal-sarcoma
#11
Yoshihiro Matsumoto, Makoto Shinoto, Makoto Endo, Nokitaka Setsu, Keiichiro Iida, Jun-Ichi Fukushi, Kenichi Kawaguchi, Seiji Okada, Hirofumi Bekki, Reiko Imai, Tadashi Kamada, Yoshiyuki Shioyama, Yasuharu Nakashima
BACKGROUND AND PURPOSE: Carbon-ion radiotherapy (C-ion RT) was effective therapy for inoperable spinal and paraspinal sarcomas. However, a significant adverse event following radiotherapies is vertebral compression fractures (VCFs). In this study, we investigated the incidence of and risk factors for post-C-ion RT VCFs in patients with spinal or paraspinal sarcomas. MATERIAL AND METHODS: Thirty consecutive patients with spinal or paraspinal sarcomas treated with C-ion RT were retrospectively reviewed...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28774573/quality-of-life-of-family-caregivers-of-patients-with-a-left-ventricular-assist-device-in-japan
#12
Naoko P Kato, Ikuko Okada, Yukie Kagami, Miyoko Endo, Masaru Hatano, Minoru Ono, Tiny Jaarsma, Koichiro Kinugawa
BACKGROUND: The role of caregivers is important for the successful support of left ventricular assist device (LVAD) patients. We aimed to (1) evaluate quality of life (QoL) of caregivers pre-and post-LVAD implant and (2) identify factors associated with caregivers' QoL. METHODS: The caregivers' QoL was assessed with the Short Form-8 before implant, at 3 and 6 months after LVAD implantation. The physical and mental component summary (PCS and MCS) scores were calculated...
July 31, 2017: Journal of Cardiology
https://www.readbyqxmd.com/read/28761352/use-of-angiotensin-converting-enzyme-inhibitors-and-freedom-from-amputation-after-lower-extremity-revascularization
#13
Jared E Kray, Viktor Y Dombrovskiy, Todd R Vogel
OBJECTIVE: Angiotensin-converting enzyme inhibitors (ACEIs) have not been well evaluated in conjunction with lower extremity revascularization (LER). This study evaluated freedom from amputation in patients who underwent either an open (OPEN) or endovascular (ENDO) revascularization with and without utilization of an ACEI. MATERIALS AND METHODS: Patients who underwent LER were identified from 2007-2008 Medicare Provider Analysis and Review files. Demographics, comorbidities, and disease severity were obtained...
2017: Vascular Health and Risk Management
https://www.readbyqxmd.com/read/28723215/discrimination-cascade-enabled-selective-detection-of-single-nucleotide-mutation
#14
Lidan Li, Xianjin Xiao, Jingyang Ge, Manli Han, Xu Zhou, Lei Wang, Xin Su, Changyuan Yu
Owing to the significance of single nucleotide mutation (SNM) for personalized medicine, the detection of SNM with high accuracy has recently attracted considerable interest. Here, we present a kinetic method for selective detection of SNM based on a discrimination cascade constructed by combining the toehold strand displacement (TSD) and endonuclease IV (Endo IV) catalyzed hydrolysis. The single-nucleotide specificity of the two DNA reactions allows highly selective detection of all types of single nucleotide changes (including single-nucleotide insertion and deletion), achieving a high discrimination factor with a median of 491 which is comparable with recently reported methods...
March 24, 2017: ACS Sensors
https://www.readbyqxmd.com/read/28720149/heparanase-promotes-neuroinflammatory-response-during-subarachnoid-hemorrhage-in-rats
#15
Benjarat Changyaleket, Zhao Zhong Chong, Randal O Dull, Danop Nanegrungsunk, Haoliang Xu
BACKGROUND: Heparanase, a mammalian endo-β-D-glucoronidase that specifically degrades heparan sulfate, has been implicated in inflammation and ischemic stroke. However, the role of heparanase in neuroinflammatory response in subarachnoid hemorrhage (SAH) has not yet been investigated. This study was designed to examine the association between heparanase expression and neuroinflammation during subarachnoid hemorrhage. METHODS: Rats were subjected to SAH by endovascular perforation, and the expression of heparanase was determined by Western blot analysis and immunofluorescence in the ipsilateral brain cortex at 24 h post-SAH...
July 18, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28708780/syndesmotic-ankle-fractures-a-systematic-review
#16
James D Michelson, Michael Wright, Michael Blankstein
OBJECTIVES: The diagnosis and treatment of syndesmotic ankle fractures is controversial. This systematic review was performed to clarify the current understanding addressing several clinical questions that arise in the treatment of such injuries DATA SOURCES:: The English language literature was searched using PubMed, EMBASE, and Web of Science. The search terms were "syndesmosis" or "syndesmotic" in combination with the terms "ankle fracture" or "fracture". The included dates were between 1967 and July 2015...
June 22, 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28700083/torsional-resistance-of-xp-endo-shaper-at-body-temperature-compared-with-several-nickel-titanium-rotary-instruments
#17
A M Elnaghy, S E Elsaka
AIM: To compare the torsional resistance of XP-endo Shaper (XPS; size 30, .01 taper, FKG Dentaire, La Chaux-de-Fonds, Switzerland) instruments at body temperature with TRUShape (TRS; size 30, .06 taper, Dentsply Tulsa Dental Specialties, Tulsa, OK, USA), ProFile Vortex (PV; size 30, .04 taper, Dentsply Tulsa Dental Specialties) and FlexMaster (FM; size 30, .04 taper, VDW GmbH, Munich, Germany) nickel-titanium rotary instruments. METHODOLOGY: A metal block with a square-shaped mould (5 mm × 5 mm × 5 mm) was positioned inside a glass container...
July 12, 2017: International Endodontic Journal
https://www.readbyqxmd.com/read/28669632/regulation-of-the-equilibrium-between-closed-and-open-conformations-of-annexin-a2-by-n-terminal-phosphorylation-and-s100a4-binding
#18
Péter Ecsédi, Bence Kiss, Gergő Gógl, László Radnai, László Buday, Kitti Koprivanacz, Károly Liliom, Ibolya Leveles, Beáta Vértessy, Norbert Jeszenői, Csaba Hetényi, Gitta Schlosser, Gergely Katona, László Nyitray
Annexin A2 (ANXA2) has a versatile role in membrane-associated functions including membrane aggregation, endo- and exocytosis, and it is regulated by post-translational modifications and protein-protein interactions through the unstructured N-terminal domain (NTD). Our sequence analysis revealed a short motif responsible for clamping the NTD to the C-terminal core domain (CTD). Structural studies indicated that the flexibility of the NTD and CTD are interrelated and oppositely regulated by Tyr24 phosphorylation and Ser26Glu phosphomimicking mutation...
August 1, 2017: Structure
https://www.readbyqxmd.com/read/28645598/efficacy-of-early-surgery-for-neurological-improvement-in-spinal-cord-injury-without-radiographic-evidence-of-trauma-in-the-elderly
#19
Tomoo Inoue, Shinsuke Suzuki, Toshiki Endo, Hiroshi Uenohara, Teiji Tominaga
BACKGROUND: The optimal timing for surgery for patients with spinal cord injury without radiographic evidence of trauma (SCIWORET) remains unclear. This is especially true in the elderly, given that most studies are done with younger patients to avoid age-related comorbidities. We aimed to compare the efficacy of early (<24 hours postinjury) and late (>24 hours postinjury) surgery in patients with SCIWORET aged ≥65 years. METHODS: We identified patients aged ≥65 years who underwent surgery for SCIWORET between January 1995 and February 2016...
September 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28643130/retreatability-of-three-calcium-silicate-containing-sealers-and-one-epoxy-resin-based-root-canal-sealer-with-four-different-root-canal-instruments
#20
David Donnermeyer, Clarissa Bunne, Edgar Schäfer, Till Dammaschke
OBJECTIVES: The objective of the study was to compare the retreatability of three calcium silicate-containing sealers (BioRoot RCS, MTA Fillapex, Endo C.P.M.) and an epoxy resin-based sealer (AH Plus) with different root canal instruments (Hedström files, Reciproc R40, Mtwo retreatment file R 25/.05 + Mtwo 40/.06, and F6 SkyTaper) concerning sealer remnants and retreatment time. MATERIALS AND METHODS: Root canals of 192 teeth were instrumented with Reciproc R40...
June 22, 2017: Clinical Oral Investigations
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