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https://www.readbyqxmd.com/read/29141013/indcaps-a-tool-for-designing-screening-primers-for-crispr-cas9-mutagenesis-events
#1
Charles Hodgens, Zachary L Nimchuk, Joseph J Kieber
Genetic manipulation of organisms using CRISPR/Cas9 technology generally produces small insertions/deletions (indels) that can be difficult to detect. Here, we describe a technique to easily and rapidly identify such indels. Sequence-identified mutations that alter a restriction enzyme recognition site can be readily distinguished from wild-type alleles using a cleaved amplified polymorphic sequence (CAPS) technique. If a restriction site is created or altered by the mutation such that only one allele contains the restriction site, a polymerase chain reaction (PCR) followed by a restriction digest can be used to distinguish the two alleles...
2017: PloS One
https://www.readbyqxmd.com/read/29135450/influence-of-acquisition-frame-rate-and-video-compression-techniques-on-pulse-rate-variability-estimation-from-vppg-signal
#2
Luca Cerina, Luca Iozzia, Luca Mainardi
In this paper, common time- and frequency-domain variability indexes obtained by pulse rate variability (PRV) series extracted from video-photoplethysmographic signal (vPPG) were compared with heart rate variability (HRV) parameters calculated from synchronized ECG signals. The dual focus of this study was to analyze the effect of different video acquisition frame-rates starting from 60 frames-per-second (fps) down to 7.5 fps and different video compression techniques using both lossless and lossy codecs on PRV parameters estimation...
November 14, 2017: Biomedizinische Technik. Biomedical Engineering
https://www.readbyqxmd.com/read/29125899/demographic-and-clinical-factors-associated-with-non-surgical-osteoarthritis-treatment-use-among-patients-in-outpatient-clinics
#3
Lauren M Abbate, Amy S Jeffreys, Cynthia J Coffman, Todd A Schwartz, Liubov Arbeeva, Leigh F Callahan, Nicole A Negbenebor, Wendy M Kohrt, Robert S Schwartz, Ernest Vina, Kelli D Allen
OBJECTIVE: To identify patient demographic and clinical characteristics associated with osteoarthritis (OA) treatment use. METHODS: This was a secondary data analysis of three clinical trials among patients with hip or knee OA conducted in 1) Duke Primary Care practices, 2) the Durham Veterans Affairs Health Care System (DVAHCS), and 3) the University of North Carolina-Chapel Hill (UNC). At baseline, participants reported socio-demographic characteristics, OA-related pain and function, and OA treatment use including oral analgesia, topical creams, joint injections and physical therapy...
November 10, 2017: Arthritis Care & Research
https://www.readbyqxmd.com/read/29118066/use-of-a-self-instructional-radiographic-anatomy-module-for-dental-hygiene-faculty-calibration
#4
Jennifer L Brame, Demah Salem AlGheithy, Enrique Platin, Shannon H Mitchell
Purpose: Dental hygiene educators often provide inconsistent instruction in clinical settings and various attempts to address the lack of consistency have been reported in the literature. The purpose of this pilot study was to determine if the use of a use of a self-instructional, radiographic anatomy (SIRA) module improved DH faculty calibration regarding the identifica-tion of normal intraoral and extraoral radiographic anatomy and whether its effect could be sustained over a period of four months.Methods: A convenience sample consisting of all dental hygiene faculty members involved in clinical instruction (N=23) at the University of North Carolina (UNC) was invited to complete the four parts of this online pilot study: a pre-test, review of the SIRA module, an immediate post-test, and a four-month follow-up post-test...
June 2017: Journal of Dental Hygiene: JDH
https://www.readbyqxmd.com/read/29113160/germline-cytotoxic-lymphocytes-defective-mutations-in-chinese-patients-with-lymphoma
#5
Xue Chen, Yang Zhang, Fang Wang, Mangju Wang, Wen Teng, Yuehui Lin, Xiangping Han, Fangyuan Jin, Yuanli Xu, Panxiang Cao, Jiancheng Fang, Ping Zhu, Chunrong Tong, Hongxing Liu
Certain patients with lymphoma may harbor mutations in perforin 1 (PRF1), unc-13 homolog D (UNC13D), syntaxin 11 (STX11), STXBP2 (syntaxin binding protein 2) or SH2 domain containing 1A (SH2D1A), which causes functional defects of cytotoxic lymphocytes. Data regarding the association between genetic defects and the development of lymphoma in Chinese patients are limited to date. In the present study, 90 patients with lymphoma were analyzed for UNC13D, PRF1, STXBP2, STX11, SH2D1A and X-linked inhibitor of apoptosis...
November 2017: Oncology Letters
https://www.readbyqxmd.com/read/29110087/outcomes-of-open-versus-laparoscopic-surgery-in-patients-with-rectal-cancer
#6
José M Quintana, Ane Anton-Ladislao, Santiago Lázaro, Nerea Gonzalez, Marisa Bare, Nerea Fernandez de Larrea, Maximino Redondo, Eduardo Briones, Antonio Escobar, Cristina Sarasqueta, Susana Garcia-Gutierrez
PURPOSE: The goal of this study was to compare the effectiveness of laparoscopic with that of open surgery up to 2 years after intervention in patients with rectal cancer. METHODS: This is a prospective cohort study of patients with rectal cancer who underwent surgery (laparoscopic or open) between June 2010 and December 2012 in 22 acute hospitals. Main outcomes were mortality, complications, reoperation, readmission, and patient-reported outcome measures (PROMs), as measured using the EuroQol-5D (EQ-5D), European Organisation for Research and Treatment of Cancer (EORTC) QLQ-Q30 and Q29, the Barthel Index (BI), and the Duke-UNC Functional Social Support Questionnaire at baseline, 1 year, and 2 years after surgery...
November 6, 2017: International Journal of Colorectal Disease
https://www.readbyqxmd.com/read/29099309/the-autophagy-inducing-kinases-ulk1-and-ulk2-regulate-axon-guidance-in-the-developing-mouse-forebrain-via-a-noncanonical-pathway
#7
Bo Wang, Rekha Iyengar, Xiujie Li-Harms, Joung Hyuck Joo, Christopher Wright, Alfonso Lavado, Linda Horner, Mao Yang, Jun-Lin Guan, Sharon Frase, Douglas R Green, Xinwei Cao, Mondira Kundu
Mammalian ULK1 (unc-51 like kinase 1) and ULK2, Caenorhabditis elegans UNC-51, and Drosophila melanogaster Atg1 are serine/threonine kinases that regulate flux through the autophagy pathway in response to various types of cellular stress. C. elegans UNC-51 and D. melanogaster Atg1 also promote axonal growth and defasciculation; disruption of these genes results in defective axon guidance in invertebrates. Although disrupting ULK1/2 function impairs normal neurite outgrowth in vitro, the role of ULK1 and ULK2 in the developing brain remains poorly characterized...
November 3, 2017: Autophagy
https://www.readbyqxmd.com/read/29094992/the-replicability-of-the-negative-testing-effect-differences-across-participant-populations
#8
Neil W Mulligan, Katherine A Rawson, Daniel J Peterson, Kathryn T Wissman
Although memory retrieval often enhances subsequent memory, Peterson and Mulligan (2013) reported conditions under which retrieval produces poorer subsequent recall-the negative testing effect. The item-specific-relational account proposes that the effect occurs when retrieval disrupts interitem organizational processing relative to the restudy condition. Rawson et al. (2015), in contrast, failed to replicate the negative testing effect despite repeated high-powered attempts. This article examines the discrepant results, ruling out differences in procedures, and concludes that differences in participant population produced the varying outcome...
November 2, 2017: Journal of Experimental Psychology. Learning, Memory, and Cognition
https://www.readbyqxmd.com/read/29092889/a-statistically-oriented-asymmetric-localization-soal-model-for-neuronal-outgrowth-patterning-by-caenorhabditis-elegans-unc-5-unc5-and-unc-40-dcc-netrin-receptors
#9
Gerard Limerick, Xia Tang, Won Suk Lee, Ahmed Mohamed, Aseel Al-Aamiri, William G Wadsworth
Neurons extend processes that vary in number, length, and direction of outgrowth. Extracellular cues help determine outgrowth patterns. In Caenorhabditis elegans, neurons respond to the extracellular UNC-6 (netrin) cue via UNC-40 (DCC) and UNC-5 (UNC5) receptors. Previously we presented evidence that UNC-40 asymmetric localization at the plasma membrane is self-organizing and that UNC-40 can localize and mediate outgrowth at randomly selected sites. Here we provide further evidence for a statistically oriented asymmetric localization (SOAL) model in which UNC-5 receptor activity affects patterns of axon outgrowth by regulating UNC-40 asymmetric localization...
November 1, 2017: Genetics
https://www.readbyqxmd.com/read/29079139/the-antipsychotic-agent-clozapine-induces-autophagy-via-the-ampk-ulk1-beclin1-signaling-pathway-in-the-rat-frontal-cortex
#10
Se Hyun Kim, Soyoung Park, Hyun Sook Yu, Kyung Hee Ko, Hong Geun Park, Yong Sik Kim
Clozapine, a representative atypical antipsychotic, has superior efficacy compared to other antipsychotic agents and is used for the treatment of severe psychotic disorders. Therefore, studies on its mechanisms of action are important for understanding the mechanisms of therapeutic approaches to psychosis. Adenosine monophosphate-activated protein kinase (AMPK) is a serine-threonine kinase that plays a major role in maintaining metabolic homeostasis. Unc-51-like kinase 1 (ULK1) and Beclin1 are downstream substrates of AMPK and activate the autophagic process...
October 25, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/29074413/galantamine-attenuates-n-n-dimethyl-hydrazine-induced-neoplastic-colon-damage-by-inhibiting-acetylcholinesterase-and-bimodal-regulation-of-nicotinic-cholinergic-neurotransmission
#11
Shreesh Raj Sammi, Jitendra K Rawat, Neetu Raghav, Ajay Kumar, Subhadeep Roy, Manjari Singh, Swetlana Gautam, Rajnish K Yadav, Uma Devi, Rakesh Pandey, Gaurav Kaithwas
The present study reveals the effect of galantamine (GAL) against 1, 2-dimethylhydrazine (DMH) induced colon cancer. Wistar albino rats were arbitrarily divided into four groups (n = 8). Group 1 served as normal control (normal saline, 3ml/kg/day, p.o.); group 2, 3 and 4 received DMH (20mg/kg/week, s.c.), for 6 weeks; groups 3 and 4 also received GAL (2 and 4mg/kg/day, p.o) for 6 weeks. DMH treated rats showed decreased heart rate variability (HRV) factors, increased incidence of aberrant crypt foci (ACF), increased thiobarbituric acid reactive substances (TBARs) along with the decrease in the enzymatic activity of superoxide dismutase (SOD) and catalase...
October 23, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/29058830/clinical-efficacy-of-utilizing-ultrapulse-co2-combined-with-fractional-co2-laser-for-the-treatment-of-hypertrophic-scars-in-asians-a-prospective-clinical-evaluation
#12
Ying Lei, Shi Feng Li, Yi Ling Yu, Jun Tan, Michael H Gold
BACKGROUND AND OBJECTIVE: Hypertrophic scarring is seen regularly. Tissue penetration of laser energy into hypertrophic scars using computer defaults from some lasers may be insufficient and penetration not enough. We have developed a treatment with an interrupted laser "drilling" by the Ultrapulse CO2 (Manual Fractional Technology, MFT) and, a second pass, with fractional CO2 . The MFT with fractional CO2 lasers to treat hypertrophic scars is evaluated. STUDY DESIGN/MATERIALS AND METHODS: A total of 158 patients with hypertrophic scars had three sessions of MFT with fractional CO2 laser at 3-month intervals...
June 2017: Journal of Cosmetic Dermatology
https://www.readbyqxmd.com/read/29055022/the-addition-of-a-developmental-factor-unc-62-to-already-long-lived-worms-increases-lifespan-and-healthspan
#13
Dror Sagi
Aging is a complex trait that is affected by multiple genetic pathways. A relatively unexplored approach is to manipulate multiple independent aging pathways simultaneously in order to observe their cumulative effect on lifespan. Here, we report the phenotypic characterization of a strain with changes in five aging pathways: 1) mitochondrial ROS production, 2) innate immunity, 3) stress response, 4) metabolic control and 5) developmental regulation in old age. The quintuply-modified strain has a lifespan that is 160% longer than the transgenic control strain...
October 20, 2017: Biology Open
https://www.readbyqxmd.com/read/29055011/unc-45a-promotes-myosin-folding-and-stress-fiber-assembly
#14
Jaakko I Lehtimäki, Aidan M Fenix, Tommi M Kotila, Giuseppe Balistreri, Lassi Paavolainen, Markku Varjosalo, Dylan T Burnette, Pekka Lappalainen
Contractile actomyosin bundles, stress fibers, are crucial for adhesion, morphogenesis, and mechanosensing in nonmuscle cells. However, the mechanisms by which nonmuscle myosin II (NM-II) is recruited to those structures and assembled into functional bipolar filaments have remained elusive. We report that UNC-45a is a dynamic component of actin stress fibers and functions as a myosin chaperone in vivo. UNC-45a knockout cells display severe defects in stress fiber assembly and consequent abnormalities in cell morphogenesis, polarity, and migration...
October 20, 2017: Journal of Cell Biology
https://www.readbyqxmd.com/read/29049217/identification-of-novel-therapeutic-target-genes-and-pathway-in-pancreatic-cancer-by-integrative-analysis
#15
Bangli Hu, Cheng Shi, Hai-Xing Jiang, Shan-Yu Qin
BACKGROUND: Gene alterations are crucial to the molecular pathogenesis of pancreatic cancer. The present study was designed to identify the potential candidate genes in the pancreatic carcinogenesis. METHODS: Gene Expression Omnibus database (GEO) datasets of pancreatic cancer tissue were retrieval and the differentially expressed genes (DEGs) from individual microarray data were merged. Gene Ontology (GO) enrichment analysis, Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis, protein-protein interaction (PPI) networks, and gene coexpression analysis were performed...
October 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29034508/ulk4-deficiency-leads-to-hypomyelination-in-mice
#16
Min Liu, Ping Xu, Zhenlong Guan, Xiaohong Qian, Peter Dockery, Una Fitzgerald, Timothy O'Brien, Sanbing Shen
Brain nerve fibers are insulated by myelin which is produced by oligodendrocytes. Defects in myelination are increasingly recognized as a common pathology underlying neuropsychiatric and neurodevelopmental disorders, which are associated with deletions of the Unc-51-like kinase 4 (ULK4) gene. Key transcription factors have been identified for oligodendrogenesis, but little is known about their associated regulators. Here we report that Ulk4 acts as a key regulator of myelination. Myelination is reduced by half in the Ulk4(tm1a/tm1a) hypomorph brain, whereas expression of axonal marker genes Tubb3, Nefh, Nefl and Nefm remains unaltered...
October 16, 2017: Glia
https://www.readbyqxmd.com/read/29033363/convergent-transcriptional-programs-regulate-camp-levels-in-c-%C3%A2-elegans-gabaergic-motor-neurons
#17
Bin Yu, Xiaolin Wang, Shuai Wei, Tao Fu, Emmanuel Enoch Dzakah, Ahmed Waqas, Walter W Walthall, Ge Shan
Both transcriptional regulation and signaling pathways play crucial roles in neuronal differentiation and plasticity. Caenorhabditis elegans possesses 19 GABAergic motor neurons (MNs) called D MNs, which are divided into two subgroups: DD and VD. DD, but not VD, MNs reverse their cellular polarity in a developmental process called respecification. UNC-30 and UNC-55 are two critical transcription factors in D MNs. By using chromatin immunoprecipitation with CRISPR/Cas9 knockin of GFP fusion, we uncovered the global targets of UNC-30 and UNC-55...
October 23, 2017: Developmental Cell
https://www.readbyqxmd.com/read/29028256/a-pilot-study-the-unc-passive-aerosol-sampler-in-a-working-environment
#18
Mariam Shirdel, Håkan Wingfors, Britt M Andersson, Johan N Sommar, Ingvar A Bergdahl, Ingrid E Liljelind
Objectives: Dust is generally sampled on a filter using air pumps, but passive sampling could be a cost-effective alternative. One promising passive sampler is the University of North Carolina passive aerosol sampler (UNC sampler). The aim of this study is to characterize and compare the UNC sampler's performance with PM10 and PM2.5 impactors in a working environment. Methods: Area sampling was carried out at different mining locations using UNC samplers in parallel with PM2...
October 1, 2017: Annals of Work Exposures and Health
https://www.readbyqxmd.com/read/29016857/biallelic-mutation-of-unc50-encoding-a-protein-involved-in-achr-trafficking-is-responsible-for-arthrogryposis
#19
Emanuela Abiusi, Manuela D'Alessandro, Klaus Dieterich, Loic Quevarec, Sandrina Turczynski, Aurore-Cecile Valfort, Paulette Mezin, Pierre Simon Jouk, Marta Gut, Ivo Gut, Jean Louis Bessereau, Judith Melki
Arthrogryposis multiplex congenita (AMC) is a developmental condition characterized by multiple joint contractures resulting from reduced or absent fetal movements. Homozygosity mapping of disease loci combined with whole exome sequencing in a consanguineous family presenting with lethal AMC allowed the identification of a homozygous frameshift deletion in UNC50 gene (c.750_751del:p.Cys251Phefs*4) in the index case. To assess the effect of the mutation, an equivalent mutation in the Caenorhabditis elegans orthologous gene was created using CRISPR/Cas9...
October 15, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/29016680/targeted-mutagenesis-in-a-human-parasitic-nematode
#20
Spencer S Gang, Michelle L Castelletto, Astra S Bryant, Emily Yang, Nicholas Mancuso, Jacqueline B Lopez, Matteo Pellegrini, Elissa A Hallem
Parasitic nematodes infect over 1 billion people worldwide and cause some of the most common neglected tropical diseases. Despite their prevalence, our understanding of the biology of parasitic nematodes has been limited by the lack of tools for genetic intervention. In particular, it has not yet been possible to generate targeted gene disruptions and mutant phenotypes in any parasitic nematode. Here, we report the development of a method for introducing CRISPR-Cas9-mediated gene disruptions in the human-parasitic threadworm Strongyloides stercoralis...
October 2017: PLoS Pathogens
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