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https://www.readbyqxmd.com/read/28936657/whole-mount-rna-fish-on-ovules-and-developing-seeds
#1
Andrea Bleckmann, Thomas Dresselhaus
A key element to understand developmental and reproductive processes like germline development, double fertilization, and embryogenesis is the study of cell-specific gene expression patterns which is best analyzed by RNA in situ hybridization. Different visualization techniques have been established to mark either the region of mRNA production (using the classical chromogenic detection system) or the specific localization of mRNAs (using fluorescent labeled probes). In this chapter, we describe and compare whole mount RNA in situ hybridization techniques on ovules and young developing seeds from Arabidopsis thaliana using three different detection systems...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28927670/patient-specific-instrumentation-for-total-shoulder-arthroplasty-not-as-accurate-as-it-would-seem
#2
Simon C Lau, Prue P A Keith
BACKGROUND: There is an increasing body of literature suggesting that the use of patient-specific instrumentation (PSI) in total shoulder arthroplasty (TSA) results in improved positioning of the glenoid component. The aim of this in vivo study was to assess the accuracy of PSI of the glenoid component in TSA in a consecutive series at a single center. METHODS: Eleven consecutive TSAs (7 TSAs and 4 reverse TSAs) were performed using custom-made patient-specific positioning guides for the glenoid component...
September 15, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28927131/protein-expression-of-fragile-histidine-triad-and-cyclooxgenase-2-in-serrated-neoplasia-of-the-colorectum
#3
Akihiro Tamoto, Kazuo Yashima, Kohei Hosoda, Sohei Yamamoto, Soichiro Kawata, Yuichiro Ikebuchi, Kazuya Matsumoto, Koichiro Kawaguchi, Kenichi Harada, Yoshikazu Murawaki, Hajime Isomoto
The adenoma-carcinoma sequence (ACS) and the serrated pathway are two distinct developmental routes leading to the formation of colorectal carcinoma (CRC). However, the mechanism triggered by the serrated pathway remains unclear. Therefore, to clarify the molecular and clinicopathological characteristics of the serrated tumorigenic pathway, immunohistochemistry was used to examine the expression of Fragile Histidine Triad (FHIT), cyclooxygenase-2 (COX-2), MutL homolog 1 (MLH1), MutS protein homolog 2 (MSH2) and P53 in endoscopically resected samples of 62 serrated polyps...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28924598/carbon-dioxide-insufflation-is-associated-with-increased-serrated-polyp-detection-rate-when-compared-to-room-air-insufflation-during-screening-colonoscopy
#4
Michael Riverso, Yaseen B Perbtani, Jonathan J D Shuster, Joydeep Chakraborty, Tony S Brar, Mitali Agarwal, Han Zhang, Anand Gupte, Shailendra S Chauhan, Christopher E Forsmark, Peter V Draganov, Dennis Yang
BACKGROUND AND STUDY AIMS : Sessile serrated adenomas (SSA) and traditional serrated adenomas (TSA) have been increasingly recognized as precursors of colorectal cancer. The aim of this study was to compare the effect of carbon dioxide insufflation (CO 2 I) vs. room air insufflation (AI) on serrated polyp detection rate (SPDR) and to identify factors associated with SPDR. PATIENTS AND METHODS : Single-center retrospective cohort study of 2083 screening colonoscopies performed with AI (November 2011 through January 2013) or CO 2 I (February 2013 to June 2015)...
September 2017: Endoscopy International Open
https://www.readbyqxmd.com/read/28917768/gold-nanoparticle-labeling-with-tyramide-signal-amplification-for-highly-sensitive-detection-of-alpha-fetoprotein-in-human-serum-by-icp-ms
#5
Xiaoting Li, Beibei Chen, Man He, Guangyang Xiao, Bin Hu
In this work, we developed an immunoassay based on tyramide signal amplification (TSA) and gold nanoparticles (Au NPs) labeling for highly sensitive detection of alpha fetoprotein (AFP) by inductively coupled plasma mass spectrometry (ICP-MS). AFP was captured by anti-AFP1 coating on the 96-well plate and labeled by anti-AFP2-horseradish peroxidase (HRP), in which the HRP can catalyze the deposition of biotinylated tyramine on the nearby protein. Then the streptavidin (SA)-Au NPs was labeled on the deposited biotinylated tyramine as the intensive signal probe for ICP-MS measurement...
January 1, 2018: Talanta
https://www.readbyqxmd.com/read/28916721/loss-of-cardiac-carnitine-palmitoyltransferase-2-results-in-rapamycin-resistant-acetylation-independent-hypertrophy
#6
Andrea S Pereyra, Like Y Hasek, Kate L Harris, Alycia G Berman, Frederick W Damen, Craig J Goergen, Jessica M Ellis
Cardiac hypertrophy is closely linked to impaired fatty acid oxidation, but the molecular basis of this link is unclear. Here, we investigated the loss of an obligate enzyme in mitochondrial long-chain fatty acid oxidation, carnitine palmitoyltransferase 2 (CPT2), on muscle and heart structure, function, and molecular signatures in a muscle- and heart-specific CPT2-deficient mouse (Cpt2M-/-) model. CPT2 loss in heart and muscle reduced complete oxidation of long-chain fatty acids by 87% and 69%, respectively, without altering body weight, energy expenditure, respiratory quotient, or adiposity...
September 15, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28916629/histone-deacetylase-inhibition-induces-odor-preference-memory-extension-and-maintains-enhanced-ampa-receptor-expression-in-the-rat-pup-model
#7
Sriya Bhattacharya, Bandhan Mukherjee, Jules J E Doré, Qi Yuan, Carolyn W Harley, John H McLean
Histone deacetylase (HDAC) plays a role in synaptic plasticity and long-term memory formation. We hypothesized that trichostatin-A (TSA), an HDAC inhibitor, would promote long-term odor preference memory and maintain enhanced GluA1 receptor levels that have been hypothesized to support memory. We used an early odor preference learning model in neonate rat pups that normally produces only 24-h memory to test behavior and examine receptor protein expression. Our behavioral studies showed that intrabulbar infusion of TSA, prior to pairing of the conditioned stimulus (peppermint odor) with the unconditioned stimulus (tactile stimulation), prolonged 24-h odor preference memory for at least 9 d...
October 2017: Learning & Memory
https://www.readbyqxmd.com/read/28915684/lack-of-association-between-nat2-polymorphism-and-prostate-cancer-risk-a-meta-analysis-and-trial-sequential-analysis
#8
Feng Wang, Zhiqiang Qin, Shuhui Si, Jingyuan Tang, Lingyan Xu, Haoxiang Xu, Ran Li, Peng Han, Haiwei Yang
Previous studies have investigated the association between NAT2 polymorphism and the risk of prostate cancer (PCa). However, the findings from these studies remained inconsistent. Hence, we performed a meta-analysis to provide a more reliable conclusion about such associations. In the present meta-analysis, 13 independent case-control studies were included with a total of 14,469 PCa patients and 10,689 controls. All relevant studies published were searched in the databates PubMed, EMBASE, and Web of Science, till March 1st, 2017...
August 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28914647/effect-of-an-intravenous-dexamethasone-added-to-caudal-local-anesthetics-to-improve-postoperative-pain-a-systematic-review-and-meta-analysis-with-trial-sequential-analysis
#9
Hiromasa Kawakami, Takahiro Mihara, Nobuhito Nakamura, Koui Ka, Takahisa Goto
BACKGROUND: Caudal anesthesia has been used for postoperative pain control in pediatric surgical patients, but the duration of the analgesic effect is occasionally unsatisfactory. Intravenous steroids have been shown to be effective for postsurgical pain management after certain surgeries. The aim of this meta-analysis with trial sequential analysis (TSA) was to evaluate the analgesic effect of steroids in patients administered with caudal anesthesia. METHODS: This study was a systematic review and meta-analysis...
September 12, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28906369/the-efficacy-of-tranexamic-acid-in-reducing-blood-loss-in-total-shoulder-arthroplasty-a-meta-analysis
#10
Jing He, Xi-E Wang, Guo-Hong Yuan, Lian-Hai Zhang
BACKGROUND: The purpose of this meta-analysis is to compare the efficacy of tranexamic acid (TXA) versus placebo after a total shoulder arthroplasty (TSA). METHODS: In April 2017, a systematic computer-based search was conducted in the databases of PubMed, Embase, Web of Science, Cochrane Library, and Google. Studies comparing TXA versus placebo in reducing blood loss after TSA were included. The endpoints were the need for transfusion, blood loss in drainage, hemoglobin drop, and total blood loss...
September 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28902601/impact-of-diabetes-on-perioperative-complications-in-patients-undergoing-elective-total-shoulder-arthroplasty
#11
Siddharth Mahure, Brent Mollon, Mary Quien, Raj Karia, Joseph Zuckerman, Young Kwon
INTRODUCTION: Diabetes has been associated with negative outcomes following orthopaedic surgery. While previous studies have reported on diabetes-associated complications in shoulder arthroplasty, those cohorts were heterogeneous in terms of patient population, nature of elective surgery, and arthroplasty type. Given that the number of elective total shoulder arthroplasties (TSAs) performed has grown substantially in volume and is predicted to rise even further, it is important to recognize the role that diabetes may play in developing in-hospital complications within a more homogenous sample of patients undergoing elective TSA...
May 2017: Bulletin of the Hospital for Joint Diseases
https://www.readbyqxmd.com/read/28899682/caveolin-1-controls-hyperresponsiveness-to-mechanical-stimuli-and-fibrogenesis-associated-runx2-activation-in-keloid-fibroblasts
#12
Chao-Kai Hsu, Hsi-Hui Lin, Hans I-Chen Harn, Rei Ogawa, Yang-Kao Wang, Yen-Ting Ho, Wan-Rung Chen, Yi-Chao Lee, Julia Yu-Yun Lee, Shyh-Jou Shieh, Chao-Min Cheng, John A McGrath, Ming-Jer Tang
Keloids are pathological scars characterized by excessive extracellular matrix production that are prone to form in body sites with increased skin tension. Caveolin-1 (CAV1), the principal coat protein of caveolae, has been associated with the regulation of cell mechanics, including cell softening and loss of stiffness sensing ability in NIH3T3 fibroblasts. Although CAV1 is present in low amounts in keloid fibroblasts (KFs), the causal association between CAV1 downregulation and its aberrant responses to mechanical stimuli remain unclear...
September 9, 2017: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/28898587/the-antioxidant-and-antiapoptotic-effect-of-boric-acid-on-hepatoxicity-in-chronic-alcohol-fed-rats
#13
Ibrahim Sogut, Sıla Ozlem Paltun, Matem Tuncdemir, Melike Ersoz, Canan Hurdag
The harmful use alcohol is a worldwide problem involving all ages. This study aims to investigate chronic alcohol exposure related hepatotoxicity on the rats liver and possible hepatoprotective effects of boric acid. Rats were separated into four different group: control, ethanol, ethanol+boric acid and boric acid. We measured malondialdehyde levels (MDA), total sialic acid (TSA), superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GPx) levels which are known to be the markers of alcohol damage and also caspase-3, tumor necrosis factor-alpha (TNF-α) and the terminal deoxynucleotidyl transferase dUTP nick-end labeling (TUNEL) as the markers of apoptosis were measured...
September 12, 2017: Canadian Journal of Physiology and Pharmacology
https://www.readbyqxmd.com/read/28895779/combination-of-bone-graft-and-resorbable-membrane-for-alveolar-ridge-preservation-a-systematic-review-meta-analysis-and-trial-sequential-analysis
#14
Giuseppe Troiano, Khrystyna Zhurakivska, Lorenzo Lo Muzio, Luigi Laino, Marco Cicciù, Lucio Lo Russo
INTRODUCTION: Alveolar ridge preservation (ARP) techniques are aimed to reduce the resorption after tooth extraction. The combination of a graft material covered with a resorbable membrane represent one of the most common strategies performed in the clinical practice. The aim of this systematic review was to analyse evidence regarding potential benefits of ARP procedures performed with allogenic/xenogenic grafts in combination with a resorbable membrane coverage in comparison to a spontaneous healing...
September 12, 2017: Journal of Periodontology
https://www.readbyqxmd.com/read/28884479/transcriptional-repression-of-aurora-a-gene-by-wild-type-p53-through-directly-binding-to-its-promoter-with-histone-deacetylase-1-and-msin3a
#15
Tsung-Ying Yang, Chieh-Lin Teng, Tsung-Chieh Chester Lin, Kun-Chieh Chen, Shih-Lan Hsu, Chun-Chi Wu
In this study, we firstly showed that p53 transcriptionally represses Aurora-A gene expression through directly binding to its promoter. DNA affinity precipitation assay and chromatin immunoprecipitation assay indicated that p53 physically bound to the Aurora-A promoter. Moreover, the in vitro and in vivo assays showed that p53 directly bound to the Aurora-A promoter together with histone deacetylase 1 (HDAC1) and mSin3a as corepressors. Furthermore, we identified that the nucleotides -360 to -354 (CCTGCCC), upstream of the Aurora-A transcriptional start site, was responsible for the p53-mediated repression...
September 7, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28878694/physiological-responses-to-firefighting-in-extreme-temperatures-do-not-compare-to-firefighting-in-temperate-conditions
#16
Stephanie Windisch, Wolfgang Seiberl, Daniel Hahn, Ansgar Schwirtz
Purpose: The aim of this study was to examine physiological responses to two different simulated firefighting exercises: a firefighting exercise with flashovers, smoke, poor visibility and extreme temperatures (300°) in a burning container and a standard firefighting exercise in temperate conditions. Furthermore, a second purpose of the study was to find out if the contribution of strength and endurance capacities to firefighting performance changes when the demands of the firefighting exercise change. Methods: Sixteen professional firefighters performed a maximum treadmill test, strength testing, a standard simulated firefighting exercise (SFE) without heat and flashovers and a firefighting exercise with a simulation of the flashover phenomenon in a burning container (FOT)...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28874676/linc-ing-circulating-long-non-coding-rnas-to-the-diagnosis-and-malignant-prediction-of-intraductal-papillary-mucinous-neoplasms-of-the-pancreas
#17
Jennifer B Permuth, Dung-Tsa Chen, Sean J Yoder, Jiannong Li, Andrew T Smith, Jung W Choi, Jongphil Kim, Yoganand Balagurunathan, Kun Jiang, Domenico Coppola, Barbara A Centeno, Jason Klapman, Pam Hodul, Florian A Karreth, Jose G Trevino, Nipun Merchant, Anthony Magliocco, Mokenge P Malafa, Robert Gillies
Pancreatic ductal adenocarcinoma (PDAC) is an aggressive disease that lacks effective biomarkers for early detection. We hypothesized that circulating long non-coding RNAs (lncRNAs) may act as diagnostic markers of incidentally-detected cystic PDAC precursors known as intraductal papillary mucinous neoplasms (IPMNs) and predictors of their pathology/histological classification. Using NanoString nCounter® technology, we measured the abundance of 28 candidate lncRNAs in pre-operative plasma from a cohort of pathologically-confirmed IPMN cases of various grades of severity and non-diseased controls...
September 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28871002/trichostatin-a-sensitizes-hepatocellular-carcinoma-cells-to-enhanced-nk-cell-mediated-killing-by-regulating-immune-related-genes
#18
Sangsu Shin, Miok Kim, Seon-Jin Lee, Kang-Seo Park, Chang Hoon Lee
BACKGROUND/AIM: Hepatocellular carcinoma (HCC) is the second leading cause of cancer-related death worldwide. The ability of HCC to avoid immune detection is considered one of the main factors making it difficult to cure. Abnormal histone deacetylation is thought to be one of the mechanisms for HCC immune escape, making histone deacetylases (HDACs) attractive targets for HCC treatment. Here, we investigated the effect of trichostatin A (TSA), a highly potent HDAC inhibitor, on HCC (HepG2) gene expression and function...
September 2017: Cancer Genomics & Proteomics
https://www.readbyqxmd.com/read/28866776/-1-h-15-n-13-c-backbone-resonance-assignments-of-human-phosphoglycerate-kinase-in-a-transition-state-analogue-complex-with-adp-3-phosphoglycerate-and-magnesium-trifluoride
#19
Zhalgas Serimbetov, Nicola J Baxter, Matthew J Cliff, Jonathan P Waltho
Human phosphoglycerate kinase (PGK) is an energy generating glycolytic enzyme that catalyses the transfer of a phosphoryl group from 1,3-bisphosphoglycerate (BPG) to ADP producing 3-phosphoglycerate (3PG) and ATP. PGK is composed of two α/β Rossmann-fold domains linked by a central α-helix and the active site is located in the cleft formed between the N-domain which binds BPG or 3PG, and the C-domain which binds the nucleotides ADP or ATP. Domain closure is required to bring the two substrates into close proximity for phosphoryl transfer to occur, however previous structural studies involving a range of native substrates and substrate analogues only yielded open or partly closed PGK complexes...
September 2, 2017: Biomolecular NMR Assignments
https://www.readbyqxmd.com/read/28865965/proximal-stress-shielding-is-decreased-with-a-short-stem-compared-with-a-traditional-length-stem-in-total-shoulder-arthroplasty
#20
Patrick J Denard, Matthew P Noyes, J Brock Walker, Yousef Shishani, Reuben Gobezie, Anthony A Romeo, Evan Lederman
BACKGROUND: This study compared the outcome and radiographic humeral adaptations after placement of a traditional-length (TL) or short-stem (SS) humeral component during total shoulder arthroplasty (TSA). The hypothesis was there would be no difference in outcome or radiographic adaptations. METHODS: A multicenter retrospective review was performed of primary TSAs performed with a TL or SS press-fit humeral component. The stems were identical in geometry and coating, with the only variable being stem length...
August 30, 2017: Journal of Shoulder and Elbow Surgery
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