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https://www.readbyqxmd.com/read/28431571/unique-lcr-variations-among-lineages-of-hpv16-18-and-45-isolates-from-women-with-normal-cervical-cytology-in-ghana
#1
Adolf K Awua, Richard M K Adanu, Edwin K Wiredu, Edwin A Afari, Vanessa A Zubuch, Richard H Asmah, Alberto Severini
BACKGROUND: In addition to being useful for classification, sequence variations of human Papillomavirus (HPV) genotypes have been implicated in differential oncogenic potential and a differential association with the different histological forms of invasive cervical cancer. These associations have also been indicated for HPV genotype lineages and sub-lineages. In order to better understand the potential implications of lineage variation in the occurrence of cervical cancers in Ghana, we studied the lineages of the three most prevalent HPV genotypes among women with normal cytology as baseline to further studies...
April 21, 2017: Virology Journal
https://www.readbyqxmd.com/read/28426749/molecular-characterization-tissue-tropism-and-genetic-variability-of-the-novel-mupapillomavirus-type-hpv204-and-phylogenetically-related-types-hpv1-and-hpv63
#2
Anja Šterbenc, Lea Hošnjak, Diego Chouhy, Elisa M Bolatti, Anja Oštrbenk, Katja Seme, Boštjan J Kocjan, Boštjan Luzar, Adriana A Giri, Mario Poljak
HPV204 is the only newly identified Mupapillomavirus (Mu-PV) type in more than a decade. To comprehensively characterize HPV204, we performed a detailed molecular analysis of the viral genome and evaluated its clinical relevance in comparison to the other Mu-PVs, HPV1 and HPV63. The 7,227-bp long genome of HPV204 exhibits typical genomic organization of Mu-PVs with eight open reading frames (ORFs) (E6, E7, E1, E2, E8, E4, L2, and L1). We developed three type-specific quantitative real-time PCRs and used them to test a representative collection (n = 1,006) of various HPV-associated benign and malignant neoplasms, as well as samples of clinically normal cutaneous, mucosal, and mucocutaneous origins...
2017: PloS One
https://www.readbyqxmd.com/read/28394617/understanding-the-impact-of-water-on-the-miscibility-and-microstructure-of-amorphous-solid-dispersions-an-afm-lcr-and-tem-edx-study
#3
Na Li, Christopher J Gilpin, Lynne S Taylor
Miscibility is critical for amorphous solid dispersions (ASDs). Phase-separated ASDs are more prone to crystallization, and thus can lose their solubility advantage leading to product failure. Additionally, dissolution performance can be diminished as a result of phase separation in the ASD matrix. Water is known to induce phase separation during storage for some ASDs. However, the impact of water introduced during preparation has not been as thoroughly investigated to date. The purpose of this study was to develop a mechanistic understanding of the effect of water on the phase behavior and microstructure of ASDs...
April 19, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/28372251/chlorogenic-acid-anthocyanin-and-flavan-3-ol-biosynthesis-in-flesh-and-skin-of-andean-potato-tubers-solanum-tuberosum-subsp-andigena
#4
Matías Ariel Valiñas, María Luciana Lanteri, Arjen Ten Have, Adriana Balbina Andreu
Natural variation of Andean potato was used to study the biosynthesis of phenolic compounds. Levels of phenolic compounds and corresponding structural gene transcripts were examined in flesh and skin of tubers. Phenolic acids, mainly chlorogenic acid (CGA), represent the major compounds, followed by anthocyanins and flavan-3-ols. High-anthocyanin varieties have high levels of CGA. Both metabolite and transcript levels were higher in skin than in flesh and showed a good correspondence. Two hydroxycinnamoyl-CoA transferases (HCT/HQT) have been involved in CGA production, of which HCT reflects CGA levels...
August 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28367021/platelet-volume-indices-as-predictive-biomarkers-for-diabetic-complications-in-type-2-diabetic-patients
#5
Archana Buch, Supreet Kaur, Rahul Nair, Ambuj Jain
BACKGROUND: Platelet volume indices (PVI) such as mean platelet volume (MPV), platelet distribution width (PDW), and platelet-large cell ratio (P-LCR) are the indicators of increased platelet activity and can be considered as potential biomarkers for diabetic complications. PURPOSE: To study PVI in Type 2 diabetics with and without complications in comparison to nondiabetic patients. MATERIALS AND METHODS: A case-control study was conducted on 300 Type 2 diabetics and 200 nondiabetics...
April 2017: Journal of Laboratory Physicians
https://www.readbyqxmd.com/read/28334054/lateral-cephalometric-analysis-for-treatment-planning-in-orthodontics-based-on-mri-compared-with-radiographs-a-feasibility-study-in-children-and-adolescents
#6
Alexander Heil, Eduardo Lazo Gonzalez, Tim Hilgenfeld, Philipp Kickingereder, Martin Bendszus, Sabine Heiland, Ann-Kathrin Ozga, Andreas Sommer, Christopher J Lux, Sebastian Zingler
OBJECTIVE: The objective of this prospective study was to evaluate whether magnetic resonance imaging (MRI) is equivalent to lateral cephalometric radiographs (LCR, "gold standard") in cephalometric analysis. METHODS: The applied MRI technique was optimized for short scanning time, high resolution, high contrast and geometric accuracy. Prior to orthodontic treatment, 20 patients (mean age ± SD, 13.95 years ± 5.34) received MRI and LCR. MRI datasets were postprocessed into lateral cephalograms...
2017: PloS One
https://www.readbyqxmd.com/read/28326663/a-morphometric-study-of-the-canine-skull-and-periorbita-and-its-implications-for-regional-ocular-anesthesia
#7
Paulo Roberto Klaumann, Juan Carlos Duque Moreno, Fabiano Montiani-Ferreira
OBJECTIVE: A hypothetical relationship between canine cranial length and the length of the periorbita could be used for intraconal anesthetic volume estimation. STUDY SUBJECTS: Forty-one canine cadaver heads and one macerated dog skull. PROCEDURES: Inion and nasion points were recognized in the macerated skull and used as landmarks for cranial length measure. Thirty cadavers classified as dolichocephalic, mesaticephalic and brachycephalic were distributed in three study groups...
March 22, 2017: Veterinary Ophthalmology
https://www.readbyqxmd.com/read/28316224/-relief-effect-of-ct-guided-125-i-seed-implantation-on-patients-with-spinal-and-paraspinal-osteolytic-metastatic-tumors
#8
H Huang, F S Li, L Wang, Z G Du, S N Xu
Objective: To evaluate the clinical value of computed tomography (CT)-guided (125)I seed implantation in the treatment of patients with spinal and/or paraspinal osteolytic metastatic tumors. Methods: The radiation dose distribution was planned for 27 patients with 35 spinal and paraspinal osteolytic metastatic tumors by a treatment planning system (TPS). CT-guided (125)I seed implantation was carried out in the patients, and the quality of treatment was evaluated based on CT-imaging follow-up. Results: All the 27 patients underwent CT-guided (125)I seed implantation successfully...
March 23, 2017: Zhonghua Zhong Liu za Zhi [Chinese Journal of Oncology]
https://www.readbyqxmd.com/read/28301268/efficacy-and-toxicity-profiles-of-two-chemoradiotherapies-for-stage-ii-laryngeal-cancer-a-comparison-between-late-course-accelerated-hyperfractionation-lcahf-and-conventional-fractionation-cf
#9
Eiichiro Okazaki, Naoki Matsushita, Mari Tashiro, Yasuhiko Shimatani, Kentaro Ishii, Masako Hosono, Masahiro Oishi, Yuichi Teranishi, Hiroyoshi Iguchi, Yukio Miki
OBJECTIVE: To evaluate the treatment results of late course accelerated hyperfractionation (LCAHF) compared with conventional fractionation (CF) for stage II laryngeal cancer. METHODS: Fifty-nine consecutive patients treated for stage II laryngeal cancer were retrospectively reviewed. Thirty-two patients underwent LCAHF, twice-daily fractions during the latter half with a total dose of 69 Gy. Twenty-seven patients received CF of 70 Gy. RESULTS: The local control rates (LCRs), overall survival (OS), and disease-specific survival (DSS) at 5 years were 80...
March 16, 2017: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/28283059/stress-triggered-phase-separation-is-an-adaptive-evolutionarily-tuned-response
#10
Joshua A Riback, Christopher D Katanski, Jamie L Kear-Scott, Evgeny V Pilipenko, Alexandra E Rojek, Tobin R Sosnick, D Allan Drummond
In eukaryotic cells, diverse stresses trigger coalescence of RNA-binding proteins into stress granules. In vitro, stress-granule-associated proteins can demix to form liquids, hydrogels, and other assemblies lacking fixed stoichiometry. Observing these phenomena has generally required conditions far removed from physiological stresses. We show that poly(A)-binding protein (Pab1 in yeast), a defining marker of stress granules, phase separates and forms hydrogels in vitro upon exposure to physiological stress conditions...
March 9, 2017: Cell
https://www.readbyqxmd.com/read/28269241/label-free-detection-of-sex-determining-region-y-sry-via-capacitive-biosensor
#11
Shilpa Sivashankar, Christos Sapsanis, Sumeyra Agambayev, Ulrich Buttner, Khaled Nabil Salama
In this work, we present for the first time, the use of a simple fractal capacitive biosensor for the quantification and detection of sex-determining region Y (SRY) genes. This section of genetic code, which is found on the Y chromosome, finds importance for study as it causes fetuses to develop characteristics of male sex-like gonads when a mutation occurs. It is also an important genetic code in men, and disorders involving the SRY gene can cause infertility and sexual malfunction that lead to a variety of gene mutational disorders...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28245287/study-of-association-and-molecular-analysis-of-human-papillomavirus-in-breast-cancer-of-indian-patients-clinical-and-prognostic-implication
#12
Saimul Islam, Hemantika Dasgupta, Anirban Roychowdhury, Rittwika Bhattacharya, Nupur Mukherjee, Anup Roy, Gautam Kumar Mandal, Neyaz Alam, Jaydip Biswas, Shyamsundar Mandal, Susanta Roychoudhury, Chinmay Kumar Panda
OBJECTIVES: Human papillomavirus (HPV) causes tumors primarily Cervical cancer. Recently, inconsistent reports came up in Breast cancer (BC) too. In India, despite treatment 70,218 BC patients die each year. So, we explored the association of HPV, if any, with BC prognosis in Indian pre-therapeutic (PT) and Neo-adjuvant chemotherapy (NACT) patients with subsequent analysis of HPV profile. METHODS: HPV prevalence was checked and analysis of physical status, copy number, genome variation, promoter methylation and expression (mRNA and protein) of the prevalent subtype was done...
2017: PloS One
https://www.readbyqxmd.com/read/28227475/label-free-detection-of-sex-determining-region-y-sry-via-capacitive-biosensor
#13
Shilpa Sivashankar, Christos Sapsanis, Sumeyra Agambayev, Ulrich Buttner, Khaled Nabil Salama, Shilpa Sivashankar, Christos Sapsanis, Sumeyra Agambayev, Ulrich Buttner, Khaled Nabil Salama, Khaled Nabil Salama, Shilpa Sivashankar, Sumeyra Agambayev, Christos Sapsanis, Ulrich Buttner
In this work, we present for the first time, the use of a simple fractal capacitive biosensor for the quantification and detection of sex-determining region Y (SRY) genes. This section of genetic code, which is found on the Y chromosome, finds importance for study as it causes fetuses to develop characteristics of male sex-like gonads when a mutation occurs. It is also an important genetic code in men, and disorders involving the SRY gene can cause infertility and sexual malfunction that lead to a variety of gene mutational disorders...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28218728/compliment-graphene-oxide-coating-on-silk-fiber-surface-via-electrostatic-force-for-capacitive-humidity-sensor-applications
#14
Kook In Han, Seungdu Kim, In Gyu Lee, Jong Pil Kim, Jung-Ha Kim, Suck Won Hong, Byung Jin Cho, Wan Sik Hwang
Cylindrical silk fiber (SF) was coated with Graphene oxide (GO) for capacitive humidity sensor applications. Negatively charged GO in the solution was attracted to the positively charged SF surface via electrostatic force without any help from adhesive intermediates. The magnitude of the positively charged SF surface was controlled through the static electricity charges created on the SF surface. The GO coating ability on the SF improved as the SF's positive charge increased. The GO-coated SFs at various conditions were characterized using an optical microscope, scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), Raman spectroscopy, and LCR meter...
February 19, 2017: Sensors
https://www.readbyqxmd.com/read/28161276/erythroid-specific-activator-gata-1-dependent-interactions-between-ctcf-sites-around-the-%C3%AE-globin-locus
#15
Yujin Kang, Yea Woon Kim, Jin Kang, Won Ju Yun, AeRi Kim
CTCF sites (binding motifs for CCCTC-binding factor, an insulator protein) are located considerable distances apart on genomes but are closely positioned in organized chromatin. The close positioning of CTCF sites is often cell type or tissue specific. Here we analyzed chromatin organization in eight CTCF sites around the β-globin locus by 3C assay and explored the roles of erythroid specific transcription activator GATA-1 and KLF1 in it. It was found five CTCF sites convergent to the locus interact with each other in erythroid K562 cells but not in non-erythroid 293 cells...
February 1, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28141745/deferasirox-iron-complex-formation-ratio-as-an-indicator-of-long-term-chelation-efficacy-in-%C3%AE-thalassemia-major
#16
Meng-Yao Lu, Ting-Hao Lin, Po-Hung Chiang, Pei-Hsin Kuo, Ning Wang, Wen-Hsin Wu, Kai-Hsin Lin, Tzu-Hua Wu
BACKGROUND: β-Thalassemia major patients with higher total drug levels [deferasirox (DEFR) plus its iron complex] do not yield better serum ferritin (SF) control. This study aimed to determine the concentrations of DEFR and its iron complex (Fe-[DEFR]2) in thalassemia patients to predict the chelation efficacy in terms of SF and cardiac T2* values. METHODS: Patients' steady-state drug levels at trough (Ctrough) and 2 hours postdose (C2h) were determined. Because iron deposition may cause changes in the hepatic metabolism of amino acids, the concentrations of 40 amino acids in plasma were also assayed at 2 hours postdose...
April 2017: Therapeutic Drug Monitoring
https://www.readbyqxmd.com/read/28028845/genomewide-snp-data-reveal-cryptic-phylogeographic-structure-and-microallopatric-divergence-in-a-rapids-adapted-clade-of-cichlids-from-the-congo-river
#17
S Elizabeth Alter, Jason Munshi-South, Melanie L J Stiassny
The lower Congo River is a freshwater biodiversity hot spot in Africa characterized by some of the world's largest rapids. However, little is known about the evolutionary forces shaping this diversity, which include numerous endemic fishes. We investigated phylogeographic relationships in Teleogramma, a small clade of rheophilic cichlids, in the context of regional geography and hydrology. Previous studies have been unable to resolve phylogenetic relationships within Teleogramma due to lack of variation in nuclear genes and discrete morphological characters among putative species...
December 28, 2016: Molecular Ecology
https://www.readbyqxmd.com/read/28026147/development-of-a-novel-immobilization-method-by-using-microgels-to-keep-enzyme-in-hydrated-microenvironment-in-porous-hydrophobic-membranes
#18
Giuseppe Vitola, Dominic Büning, Jens Schumacher, Rosalinda Mazzei, Lidietta Giorno, Mathias Ulbricht
Using colloidal polyacrylamide (PAAm) microgels as carriers, a novel strategy for covalent immobilization of enzymes maintained in hydrated microenvironment on/in a macroporous surface-functionalized hydrophobic polyvinylidene fluoride (PVDF) membrane is developed. The PAAm microgels are synthesized by inverse miniemulsion polymerization, and first the parameters are investigated which are suited to obtain particles in the desired size range, 100-200 nm, with narrow size distribution. Amino functions are then imparted to the microgels applying the Hofmann reaction...
December 27, 2016: Macromolecular Bioscience
https://www.readbyqxmd.com/read/28004846/short-term-economic-impact-of-the-zika-virus-outbreak
#19
Daniele Macciocchi, Simone Lanini, Francesco Vairo, Alimuddin Zumla, Luiz Tadeu Moraes Figueiredo, Francesco Nicola Lauria, Gino Strada, Philippe Brouqui, Vincenzo Puro, Sanjeev Krishna, Peter Kremsner, Paola Scognamiglio, Carsten Köhler, Emanuele Nicastri, Antonino Di Caro, Rodolfo Maria Cieri, John P A Ioannidis, Gary Kobinger, Marcelo Nascimento Burattini, Giuseppe Ippolito
Zika virus (ZIKV) is mainly transmitted by mosquitoes bites. However, transmission by sexual contacts has been reported in 11 non endemic countries. The rapid spread of ZIKV in Latin American and Caribbean Countries (LCR), person-to-person transmission and perceived risk on people's well being can affect the emerging economies of LCR which historically dependent on truism. Here we present an analysis on economic outputs for assessing the current impact of ZIKV on markets. Our analysis show an unexpected resilience of LCR markets to international alerts...
October 2016: New Microbiologica
https://www.readbyqxmd.com/read/27998803/a-pilot-study-on-hla-g-locus-control-region-haplotypes-and-cervical-intraepithelial-neoplasias
#20
Juliana Cochesnki Cordeiro, Jose Samuel da Silva, Valeria Sperandio Roxo, Maria da Graça Bicalho
Human papillomavirus (HPV) can induce cervical intraepithelial neoplasias (CIN) grades 1, 2 and 3. Untreated, these lesions may progress to cervical cancer (CC) which is the third most common cancer in women worldwide. HLA-G plays an immunotolerant role in the immune response. The aim of this study was to characterize the configuration of SNPs located at the distal promoter of HLA-G in patients with CIN2 and CIN3 and control women. The study sample was composed of 207 women as follows: 73 diagnosed with CIN2 lesions, 56 with CIN3 and 78 healthy control women...
March 2017: Human Immunology
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