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https://www.readbyqxmd.com/read/28445836/a-forensic-multiplex-of-nine-novel-pentameric-repeat-strs
#1
M de la Puente, C Phillips, M Fondevila, M Gelabert-Besada, Á Carracedo, M V Lareu
Pentameric-repeat short tandem repeats (STRs), consisting of loci with repeat units of five base-pairs, have the advantage of reduced stutter products compared to their tetrameric-repeat STR counterparts. This characteristic potentially helps the interpretation of mixed DNA profiles when minor component alleles may coincide with stutter peaks from the major components. To develop a simple but informative forensic multiplex with the capability to aid mixture interpretation, we designed an 11-plex assay of nine pentameric STRs new to forensic analysis plus two male- specific markers: DYS391 and the Y-Indel rs2032678 used in GlobalFiler™ (Life Technologies)...
April 15, 2017: Forensic Science International. Genetics
https://www.readbyqxmd.com/read/28445829/the-role-of-peu-mir164-and-its-target-penac-genes-in-response-to-abiotic-stress-in-populus-euphratica
#2
Xin Lu, Hui Dun, Conglong Lian, Xiaofei Zhang, Weilun Yin, Xinli Xia
Plant miR164 family is highly conserved and miR164 members regulate conserved targets belonging to NAC transcription factors. Our previous studies have revealed that peu-miR164a-e and its target gene POPTR_0007s08420 participate in abiotic stress response in Populus euphratica according to deep sequencing and degradome sequencing. In this study, miR164 family comprises six members that generate two mature products (miR164a-e and miR164f) and target seven NAC genes in P. euphratica. Co-expression in Nicotiana benthamiana and 5' RACE confirmed that peu-miR164 directs PeNAC070, PeNAC012 and PeNAC028 mRNAs cleavage...
April 8, 2017: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/28445769/evidence-for-mast-cell-mediated-zinc-homeostasis-increased-labile-zinc-in-the-hippocampus-of-mast-cell-deficient-mice
#3
Rachel H Kennedy, Amen Wiqas, James P Curley
The dentate gyrus of the hippocampus is a site of adult neurogenesis, and is also known to contain one of the highest concentrations of labile brain zinc (Zn), thought to aid in learning and memory by supporting neurogenesis. At the same time, it is known that unbound Zn, when present at excessive levels, decreases the formation of new neurons. Since mast cells contain Zn transporters capable of moving this essential element across their plasma membrane, as well as Zn-rich granules that are dispelled upon secretion, we reasoned that mast cells contribute to Zn homeostasis in this area of the brain, as they are found in greatest numbers in and around the dentate gyrus...
April 23, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28445615/status-epilepticus-in-dogs-and-cats-part-1-etiopathogenesis-epidemiology-and-diagnosis
#4
Susan Blades Golubovic, John H Rossmeisl
OBJECTIVE: To review current knowledge of the etiopathogenesis, diagnosis, and consequences of status epilepticus (SE) in veterinary patients. DATA SOURCES: Human and veterinary literature, including clinical and laboratory research and reviews. ETIOPATHOGENESIS: Status epilepticus is a common emergency in dogs and cats, and may be the first manifestation of a seizure disorder. It results from the failure of termination of an isolated seizure...
April 26, 2017: Journal of Veterinary Emergency and Critical Care
https://www.readbyqxmd.com/read/28445461/tumour-ischaemia-by-interferon-%C3%AE-resembles-physiological-blood-vessel-regression
#5
Thomas Kammertoens, Christian Friese, Ainhoa Arina, Christian Idel, Dana Briesemeister, Michael Rothe, Andranik Ivanov, Anna Szymborska, Giannino Patone, Severine Kunz, Daniel Sommermeyer, Boris Engels, Matthias Leisegang, Ana Textor, Hans Joerg Fehling, Marcus Fruttiger, Michael Lohoff, Andreas Herrmann, Hua Yu, Ralph Weichselbaum, Wolfgang Uckert, Norbert Hübner, Holger Gerhardt, Dieter Beule, Hans Schreiber, Thomas Blankenstein
The relative contribution of the effector molecules produced by T cells to tumour rejection is unclear, but interferon-γ (IFNγ) is critical in most of the analysed models. Although IFNγ can impede tumour growth by acting directly on cancer cells, it must also act on the tumour stroma for effective rejection of large, established tumours. However, which stroma cells respond to IFNγ and by which mechanism IFNγ contributes to tumour rejection through stromal targeting have remained unknown. Here we use a model of IFNγ induction and an IFNγ-GFP fusion protein in large, vascularized tumours growing in mice that express the IFNγ receptor exclusively in defined cell types...
April 26, 2017: Nature
https://www.readbyqxmd.com/read/28445412/assessing-the-efficacy-of-first-aid-measures-in-physalia-sp-envenomation-using-solution-and-blood-agarose-based-models
#6
Christie L Wilcox, Jasmine L Headlam, Thomas K Doyle, Angel A Yanagihara
Stings from the hydrozoan species in the genus Physalia cause intense, immediate skin pain and elicit serious systemic effects. There has been much scientific debate about the most appropriate first aid for these stings, particularly with regard to whether vinegar use is appropriate (most current recommendations recommend against vinegar). We found that only a small percentage (≤1.0%) of tentacle cnidae discharge during a sting event using an ex vivo tissue model which elicits spontaneous stinging from live cnidarian tentacles...
April 26, 2017: Toxins
https://www.readbyqxmd.com/read/28445407/application-of-uhplc-esi-q-tof-ms-to-identify-multiple-constituents-in-processed-products-of-the-herbal-medicine-ligustri-lucidi-fructus
#7
Hui Li, Weifeng Yao, Qinan Liu, Jia Xu, Beihua Bao, Mingqiu Shan, Yudan Cao, Fangfang Cheng, Anwei Ding, Li Zhang
Ligustri Lucidi Fructus (LLF), the fruit of Ligustrum lucidum Ait. (Oleaceae), has been used as a common herbal medicine in clinical practice in China for nearly 2000 years. In most cases, LLF is prescribed in decoctions in the form of processed products rather than crude drugs. In this study, an ultra-high performance liquid chromatography coupled with electrospray ionization-quadrupole-time of flight-mass spectrometry (UHPLC-ESI-Q-TOF-MS) method was established for rapid separation and identification of multiple constituents in the 80% methanol extract of processed-LLF...
April 26, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28445368/correcting-concavity-of-rabbit-auricular-cartilage-comparison-of-single-scoring-incisions-with-butyl-cyanoacrylate-aided-techniques
#8
Yalcin Yontar, İrfan Özyazgan
BACKGROUND: The authors present the results of an experimental study in which four different techniques were used for the correction of concave rabbit auricular cartilage. METHODS: Sixteen New Zealand adult male rabbits were used in the study. Butyl cyanoacrylate-aided cartilage graft fixation and butyl cyanoacrylate-aided bone graft fixation and scoring technique, alone or combined with butyl cyanoacrylate application, were performed to correct the concavity of rabbit auricular cartilage...
May 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28445287/prognostic-value-of-pretreatment-18f-fdg-pet-ct-for-nasopharyngeal-carcinoma-patients
#9
Yecai Huang, Mei Feng, Qiao He, Jun Yin, Peng Xu, Qinghua Jiang, Jinyi Lang
BACKGROUND: Nasopharyngeal carcinoma (NPC) is a special subtype of head and neck cancer (HNC). At present, there are no highly specific prognostic markers to aid in tumor grading and guide patient treatment modalities for NPC. The prognostic value of pretreatment F-fluorodeoxyglucose positron emission tomography-computed tomography (F-PET-CT) in NPC patients is controversial and no consensus exists as to its predictive capability. METHODS: To analyze the predictive efficacy of F-PET-CT imaging in NPC patients, data from MEDLINE, EMBASE, the Cochrane library, CBM, CNKI, and VIP (inception to July 2016) were accessed...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28445275/cases-of-primary-malignant-melanoma-and-melanocytosis-of-the-esophagus-observed-by-magnifying-endoscopy-application-to-differential-diagnosis-case-series
#10
Hiroyuki Ohnuma, Kazuma Ishikawa, Masahiro Hirakawa, Shohei Kikuchi, Yasushi Sato, Koji Miyanishi, Junji Kato
RATIONALE: Primary malignant melanoma of the esophagus (PMME) is a rare disease with an extremely poor prognosis. In contrast, melanocytosis is a benign condition defined as melanocytic proliferation with melanin deposition. PMME is often accompanied by melanocytosis, but differentiating between them is difficult because of their similar appearance. PATIENT CONCERNS: Here, we reported 3 PMME cases, 2 with melanocytosis. DIAGNOSES: Magnifying endoscopy revealed characteristic non-uniform pigmented spots along deformed intrapapillary capillary loops (IPCLs) in PMME, while melanocytosis showed fine granule-like or linearly arranged spots and intact IPCLs...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28445231/the-effects-of-multi-day-vs-single-pre-exercise-nitrate-supplement-dosing-on-simulated-cycling-time-trial-performance-and-skeletal-muscle-oxygenation
#11
Edward Jo, Michelle Fischer, Alexandra T Auslander, Alan Beigarten, Bruce Daggy, Ken Hansen, Lisa Kessler, Adam Osmond, Hong Wang, Rachel Wes
A transient augmentation in the metabolic efficiency of skeletal muscle is the purported basis for dietary nitrate supplementation amongst competitive and recreational athletes alike. Previous studies support the ergogenic effects of nitrate supplementation as findings indicated improved microvascular blood flow, exercise economy, and performance with relatively short-term supplementation. As with most ergogenic aids, the optimum duration of supplementation prior to performance or competition, i.e. loading phase, is a critical determinant for efficacy...
April 18, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28445163/annealing-of-au-ag-and-au-ag-alloy-nanoparticle-arrays-on-gaas-100-and-111-b
#12
Alexander M Whiticar, Erik K Mårtensson, Jesper Nygård, Kimberly A Dick, Jessica Bolinsson
Metal nanoparticles (NPs), in particular gold NPs, are often used in the fabrication process of semiconductor nanowires. Besides being able to induce the 1D crystallization of new material, it is highly beneficial if the NPs can be used to dictate the position and diameter of the final nanowire structure. To achieve well-defined NP arrays of varying diameter and pitch distances for nanowire growth, it is necessary to understand and control the effect that a pre-growth annealing process may have on the pre-defined NP arrays...
May 19, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28445143/the-igh-locus-relocalizes-to-a-recombination-compartment-in-the-perinucleolar-region-of-differentiating-b-lymphocytes
#13
Andrey Pichugin, Olga V Iarovaia, Alexey Gavrilov, Ilya Sklyar, Natalja Barinova, Aleksandr Barinov, Evgeny Ivashkin, Gersende Caron, Said Aoufouchi, Sergey V Razin, Thierry Fest, Marc Lipinski, Yegor S Vassetzky
The immunoglobulin heavy chain (IGH) gene loci are subject to specific recombination events during B-cell differentiation including somatic hypermutation and class switch recombination which mark the end of immunoglobulin gene maturation in germinal centers of secondary lymph nodes. These two events rely on the activity of activation-induced cytidine deaminase (AID) which requires DNA double strand breaks be created, a potential danger to the cell. Applying 3D-fluorescence in situ hybridization coupled with immunofluorescence staining to a previously described experimental system recapitulating normal B-cell differentiation ex vivo, we have kinetically analyzed the radial positioning of the two IGH gene loci as well as their proximity with the nucleolus, heterochromatin and γH2AX foci...
April 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/28445125/intratumoral-heterogeneity-analysis-reveals-hidden-associations-between-protein-expression-losses-and-patient-survival-in-clear-cell-renal-cell-carcinoma
#14
Wei Jiang, Essel Dulaimi, Karthik Devarajan, Theodore Parsons, Qiong Wang, Raymond O'Neill, Charalambos Solomides, Stephen C Peiper, Joseph R Testa, Robert Uzzo, Haifeng Yang
Intratumoral heterogeneity (ITH) is a prominent feature of kidney cancer. It is not known whether it has utility in finding associations between protein expression and clinical parameters. We used ITH that is detected by immunohistochemistry (IHC) to aid the association analysis between the loss of SWI/SNF components and clinical parameters.160 ccRCC tumors (40 per tumor stage) were used to generate tissue microarray (TMA). Four foci from different regions of each tumor were selected. IHC was performed against PBRM1, ARID1A, SETD2, SMARCA4, and SMARCA2...
April 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28445069/targeted-dereplication-of-microbial-natural-products-by-high-resolution-ms-and-predicted-lc-retention-time
#15
Justine Chervin, Marc Stierhof, Ming Him Tong, Doe Peace, Kine Østnes Hansen, Dagmar Solveig Urgast, Jeanette Hammer Andersen, Yi Yu, Rainer Ebel, Kwaku Kyeremeh, Veronica Paget, Gabriela Cimpan, Albert Van Wyk, Hai Deng, Marcel Jaspars, Jioji N Tabudravu
A new strategy for the identification of known compounds in Streptomyces extracts that can be applied in the discovery of natural products is presented. The strategy incorporates screening a database of 5555 natural products including 5098 structures from Streptomyces sp., using a high-throughput LCMS data processing algorithm that utilizes HRMS data and predicted LC retention times (tR) as filters for rapid identification of known compounds in the natural product extract. The database, named StrepDB, contains for each compound the structure, molecular formula, molecular mass, and predicted LC retention time...
April 26, 2017: Journal of Natural Products
https://www.readbyqxmd.com/read/28445065/neomacrophorin-x-a-4-4-3-propellane-type-meroterpenoid-from-trichoderma-sp-1212-03
#16
Kazuaki Kusakabe, Yuna Honmura, Shota Uesugi, Akio Tonouchi, Hayato Maeda, Ken-Ichi Kimura, Hiroyuki Koshino, Masaru Hashimoto
Neomacrophorin X (1) was isolated from Trichoderma sp. 1212-03. Heteronuclear multiple bond correlation (HMBC) spectral analysis indicated a unique [4.4.3]propellane framework, which was verified by the (1)H and (13)C chemical shift calculations based on density functional theory (DFT) and subsequent comparison with experimental data obtained in CDCl3. The DFT-based electronic circular dichroism (ECD) calculations were effective in not only determining the absolute configuration but also confirming the relative structure...
April 26, 2017: Journal of Natural Products
https://www.readbyqxmd.com/read/28444857/strategies-for-removing-a-worn-out-bone-anchored-hearing-aid-abutment-screw
#17
Yehuda Schwarz, Marco Bianchi, Aren Bezdjian, Sam J Daniel
First developed by Tjellström over 35 years ago, bone anchored hearing implants have been used effectively as a treatment for conductive or mixed hearing loss.(1) These devices have been implanted safely in adults and children with success rates of 90% or higher.(2) Nonetheless, bone anchored hearing implants present certain adverse effects most commonly related to soft tissue reaction, implant stability, failure to osseointegrate or due to trauma. This article is protected by copyright. All rights reserved...
April 26, 2017: Clinical Otolaryngology
https://www.readbyqxmd.com/read/28444688/semiparametric-estimation-of-the-accelerated-failure-time-model-with-partly-interval-censored-data
#18
Fei Gao, Donglin Zeng, Dan-Yu Lin
Partly interval-censored (PIC) data arise when some failure times are exactly observed while others are only known to lie within certain intervals. In this article, we consider efficient semiparametric estimation of the accelerated failure time (AFT) model with PIC data. We first generalize the Buckley-James estimator for right-censored data to PIC data. Then, we develop a one-step estimator by deriving and estimating the efficient score for the regression parameters. We show that under mild regularity conditions the generalized Buckley-James estimator is consistent and asymptotically normal and the one-step estimator is consistent and asymptotically normal with a covariance matrix that attains the semiparametric efficiency bound...
April 25, 2017: Biometrics
https://www.readbyqxmd.com/read/28444628/moving-beyond-age-an-exploratory-qualitative-study-on-the-context-of-young-african-american-men-and-women-s-sexual-debut
#19
Yzette Lanier, Jennifer M Stewart, Jean J Schensul, Barbara J Guthrie
African American youth continue to be disproportionately affected by HIV. Early sexual debut has been identified as a major determinant of HIV risk. However, emerging research suggests that the overarching context in which first sex occurs may have greater implications for sexual health than simply age alone. The purpose of this exploratory, qualitative study was to better understand the broader context of African Americans' sexual debut. In-depth, semi-structured interviews were conducted with 10 African American men and women aged 18-24 years...
April 25, 2017: Journal of Racial and Ethnic Health Disparities
https://www.readbyqxmd.com/read/28444627/level-of-cigarette-consumption-and-duration-of-smoking-abstinence-during-failed-quit-attempts-among-long-term-daily-smokers-the-role-of-race-ethnicity-and-cessation-aids
#20
Julia N Soulakova, Lisa J Crockett
The goal of this study was to determine whether race/ethnicity and use of smoking cessation aids are associated with the duration of the last serious quit attempt and reductions in cigarette consumption among long-term daily smokers who tried, and failed, to quit smoking during the preceding year. Data came from the 2010-2011 Tobacco Use Supplement survey conducted in the USA, and analyses included 6672 reports of long-term daily smokers (i.e., smokers who smoked daily for 1 year or longer) who made at least one serious quit attempt in the past 12 months...
April 25, 2017: Journal of Racial and Ethnic Health Disparities
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