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https://www.readbyqxmd.com/read/29156866/tlr2-196-to-174-ins-del-and-tlr3-1377c-t-as-biomarkers-for-nasopharyngeal-cancer-in-tunisia
#1
Lamia Makni, Amira Messadi, Sabrina Zidi, Ezzedine Gazouani, Amel Mezlini, Besma Yacoubi-Loueslati
Background/aim: We evaluated the association of TLR2 (-196 to -174 Ins/Del) and TLR3 (1377 C>T) as potential risk factors for nasopharyngeal carcinoma (NPC) in Tunisians. Material and methods: The study subjects comprised 137 NPC patients and 164 cancer-free control subjects. TLR2 genotyping was done by PCR and TLR3 genotyping was performed by PCR-RFLP. Results: Minor allele frequency (MAF) and genotypes of TLR3 (1377 C>T) were comparable between NPC patients and controls. Significantly higher MAF and TLR2-containing Del allele genotypes of TLR2 (-196 to -174 Ins/Del) were seen in NPC patients compared to controls [OR (95% CI) = 2...
August 23, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/29156777/patients-with-nsclc-may-display-a-low-ratio-of-p-t790m-vs-activating-egfr-mutations-in-plasma-at-disease-progression-implications-for-personalised-treatment
#2
Marzia Del Re, Paola Bordi, Iacopo Petrini, Eleonora Rofi, Francesca Mazzoni, Lorenzo Belluomini, Enrico Vasile, Giuliana Restante, Francesco Di Costanzo, Alfredo Falcone, Antonio Frassoldati, Ron H N van Schaik, Christi M J Steendam, Antonio Chella, Marcello Tiseo, Riccardo Morganti, Romano Danesi
Introduction: NSCLC harboring activating mutations of EGFR is highly sensitive to first-line EGFR-tyrosine kinase inhibitors (TKIs), but drug resistance depending on the EGFR mutation p.T790M will occur in about 50-60% of patients. Detailed information on the amount of p.T790M plasmatic level associated with resistance to EGFR-TKIs and guidance to treatment with p.T790M-effective TKI depending on these levels, is lacking. Methods: This study enrolled p.T790M-positive patients (n=49) affected by EGFR-mutated NSCLC at progression to first-line EGFR-TKIs and, in selected cases (n=5), after second-line treatment with osimertinib...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29156773/association-of-acyp2-and-mphosph6-genetic-polymorphisms-with-the-risk-of-hepatocellular-carcinoma-in-chronic-hepatitis-b-virus-carriers
#3
Yingai Zhang, Shunlan Wang, Xiaohong Wen, Shufang Zhang, Yijun Yang
Hepatocellular carcinoma (HCC) is the dominant histologic type of primary liver cancer, and hepatitis B virus (HBV) infection is one of the major causes of HCC in the chronic HBV. Our study was investigated the association between the polymorphisms of ACYP2 and MPHOSPH6 genes and the risk of HCC induced by HBV infection. A total of 490 subjects were divided into two groups: 248 HBV patients with HCC (Case group), and 242 HBV patients without HCC (Control group). Unconditional logistic regression analysis was used to evaluate the association...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29156578/pancreatic-cancer-molecular-characterization-clonal-evolution-and-cancer-stem-cells
#4
REVIEW
Elvira Pelosi, Germana Castelli, Ugo Testa
Pancreatic Ductal Adenocarcinoma (PDAC) is the fourth most common cause of cancer-related death and is the most lethal of common malignancies with a five-year survival rate of <10%. PDAC arises from different types of non-invasive precursor lesions: intraductal papillary mucinous neoplasms, mucinous cystic neoplasms and pancreatic intraepithelial neoplasia. The genetic landscape of PDAC is characterized by the presence of four frequently-mutated genes: KRAS, CDKN2A, TP53 and SMAD4. The development of mouse models of PDAC has greatly contributed to the understanding of the molecular and cellular mechanisms through which driver genes contribute to pancreatic cancer development...
November 18, 2017: Biomedicines
https://www.readbyqxmd.com/read/29156547/knowledge-and-practices-of-toxoplasmosis-among-clinical-laboratory-professionals-a-cross-sectional-study-in-durango-mexico
#5
Cosme Alvarado-Esquivel, Luis Francisco Sánchez-Anguiano, Luis Omar Berumen-Segovia, Jesús Hernández-Tinoco, Yazmin Del Rosario Rico-Almochantaf, Alfredo Cisneros-Camacho, Jorge Arturo Cisneros-Martínez
Background: The aim of this study was to determine the level of knowledge and practices about toxoplasmosis in a sample of clinical laboratory professionals in Mexico. Methods: 192 clinical laboratory professionals were surveyed. They were asked about (1) Toxoplasma gondii; (2) clinical manifestations, diagnosis, treatment, and epidemiology of toxoplasmosis; and (3) their practices with respect to toxoplasmosis. Results: The range of animals infected by T. gondii was known by 44.8% of participants. Clinical aspects of toxoplasmosis were known by up to 44...
November 18, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29156535/hdacis-class-i-cancer-stem-cell-and-phytochemicals-cancer-therapy-and-prevention-implications
#6
REVIEW
Sahar Bayat, Mahmoud Shekari Khaniani, Jalal Choupani, Mohammad Reza Alivand, Sima Mansoori Derakhshan
Epigenetics is independent of the sequence events that physically affect the condensing of chromatin and genes expression. The unique epigenetic memories of various cells trigger exclusive gene expression profiling. According to different studies, the aberrant epigenetic signatures and impaired gene expression profiles are master occurrences in cancer cells in which oncogene and tumor suppressor genes are affected. Owing to the facts that epigenetic modifications are performed earlier than expression and are reversible, the epigenetic reprogramming of cancer cells could be applied potentially for their prevention, control, and therapy...
November 16, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29156389/assessing-working-memory-in-children-with-adhd-minor-administration-and-scoring-changes-may-improve-digit-span-backward-s-construct-validity
#7
Erica L Wells, Michael J Kofler, Elia F Soto, Hillary S Schaefer, Dustin E Sarver
BACKGROUND: Pediatric ADHD is associated with impairments in working memory, but these deficits often go undetected when using clinic-based tests such as digit span backward. AIMS: The current study pilot-tested minor administration/scoring modifications to improve digit span backward's construct and predictive validities in a well-characterized sample of children with ADHD. METHODS AND PROCEDURES: WISC-IV digit span was modified to administer all trials (i...
November 17, 2017: Research in Developmental Disabilities
https://www.readbyqxmd.com/read/29156369/mixed-bacterial-culture-mediated-direct-conversion-of-bio-glycerol-to-diols
#8
Roopa Parate, Rasika Mane, Mahesh Dharne, Chandrashekhar Rode
Direct and economic transformation of biodiesel derived crude glycerol is gaining more significance. During screening of bacterial cultures Klebsiella pneumoniae and Enterobacter aerogenes were able to convert crude bio-glycerol to 2,3-butanediol (2,3-BDO) and 1,3-propanediol (1,3-PDO), as major compounds, ethanol and acetoin as minor compounds, with a conversion of 69% and 79% respectively. Process optimization could achieve maximum conversion at pH 7.0, 37 °C, 30-40 g/L glycerol and 1.5 g of inoculum until 120 h...
November 10, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/29156347/creation-of-a-3mn-1fe-cluster-in-the-oxygen-evolving-complex-of-photosystem-ii-and-investigation-of-its-functional-activity
#9
B К Semin, L N Davletshina, M Seibert, A B Rubin
Extraction of Mn cations from the oxygen-evolving complex (OEC) of Ca-depleted PSII membranes (PSII[-Ca,4Mn]) by reductants like hydroquinone (H2Q) occurs with lower efficiency at acidic pH (2Mn/reaction center [RC] are extracted at pH5.7) than at neutral pH (3Mn/RC are extracted at pH6.5) [Semin et al. Photosynth. Res. 125 (2015) 95]. Fe(II) also extracts Mn cations from PSII(-Ca,4Mn), but only 2Mn/RC at pH6.5, forming a heteronuclear 2Mn/2Fe cluster [Semin and Seibert, J. Bioenerg. Biomembr. 48 (2016) 227]...
November 11, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/29156339/silicification-process-in-diatom-algae-using-different-silicon-chemical-sources-colloidal-silicic-acid-interactions-at-cell-surface
#10
Silvia Casabianca, Antonella Penna, Samuela Capellacci, Michela Cangiotti, Maria Francesca Ottaviani
The silicon transport and use inside cells are key processes for understanding how diatoms metabolize this element in the silica biogenic cycle in the ocean. A spin-probe electron paramagnetic resonance (EPR) study over time helped to investigate the interacting properties and the internalization mechanisms of silicic acid from different silicon sources into the cells. Diatom cells were grown in media containing biogenic amorphous substrates, such as diatomaceous earth and sponge spicules, and crystalline sodium metasilicate...
November 14, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/29156314/characterization-of-northwest-africa-6286-and-7857-ordinary-chondrites-using-x-ray-diffraction-magnetization-measurements-and-m%C3%A3-ssbauer-spectroscopy
#11
A A Maksimova, M I Oshtrakh, A V Chukin, I Felner, G A Yakovlev, V A Semionkin
Northwest Africa (NWA) 6286 and 7857 meteorites were studied in detail by using optical microscopy, scanning electron microscopy with energy dispersion spectroscopy, X-ray diffraction, magnetization measurements and (57)Fe Mössbauer spectroscopy with a high velocity resolution. The main and the minor iron-bearing phases were identified in both meteorites. The unit cell parameters as well as Fe(2+) and Mg(2+) cation distribution were determined for the M1 and M2 sites in silicate microcrystals. Saturation magnetic moments were obtained for both meteorites...
October 25, 2017: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/29156280/characteristics-and-health-risk-assessment-of-heavy-metals-exposure-via-household-dust-from-urban-area-in-chengdu-china
#12
Zhang Cheng, Liu-Jun Chen, Han-Han Li, Jian-Qing Lin, Zhan-Biao Yang, Yuan-Xiang Yang, Xiao-Xun Xu, Jun-Ren Xian, Ji-Rong Shao, Xue-Mei Zhu
To investigate the characteristics of heavy metals (Cr, Cd, Pb, Zn, Cu and Ni) in household dust in urban household environment of Chengdu, China, 90 household dust samples were collected from 6 districts of the city. The information of houses and residents were also recorded during dust sampling to identify the correlations between heavy metals in household dust and the house attributes. And also the principal component analysis and cluster analysis for sources and impactor factors. The concentrations of Pb (123mg·kg(-1)), Zn (675mg·kg(-1)), Cu (190mg·kg(-1)), Cr (82...
November 17, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29156176/management-of-patients-with-left-ventricular-assist-devices-requiring-teeth-extraction-is-halting-anticoagulation-appropriate
#13
Visakha Suresh, Muath Bishawi, Michael W Manning, Chetan Patel, Joseph Rogers, Carmelo Milano, Jacob Schroder, Mani Daneshmand, David Powers
PURPOSE: An increasing number of patients with end-stage heart failure are supported with left ventricular assist device (LVAD) implantation and must be maintained on a consistent anticoagulation regimen. Pre-emptive extraction of carious teeth in these patients is necessary to prevent seeding of the implanted device and endocarditis. Thus, the objective of this study was to evaluate bleeding complications after minor oral surgery, specifically teeth extractions, in this unique patient population requiring long-term anticoagulation...
October 31, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29156102/decreasing-trends-in-number-of-depot-medroxyprogesterone-acetate-starters-in-norway-a-cross-sectional-study
#14
Ingvild Roksvaag, Finn Egil Skjeldestad
INTRODUCTION: In this study, we examined changes in depot medroxyprogesterone acetate (DMPA) prescriptions over a time-period when new professions started prescribing, and when the method gained some negative media attention. MATERIAL AND METHODS: The Norwegian Prescription Database provided data on hormonal contraception from 2006 through 2012. We estimated annual number of DMPA users by calculating doses sold per day/1000 women and calculated, for each contraceptive method on annual basis, a proportion of defined daily doses of all hormonal contraceptives in 5-year age groups at reproductive age...
November 20, 2017: Acta Obstetricia et Gynecologica Scandinavica
https://www.readbyqxmd.com/read/29156100/doctoral-training-in-clinical-psychology-across-23-years-continuity-and-change
#15
John C Norcross, Michael A Sayette, Andrew M Pomerantz
OBJECTIVE: Doctoral training in clinical psychology has undergone substantial changes in recent decades, especially with the increasing heterogeneity of training models and graduate students. To document these changes, we analyzed program, student, and faculty characteristics of American Psychological Association (APA)-accredited clinical psychology programs over a 23-year span. METHOD: We surveyed directors of clinical training about their doctoral programs every 2 years from 1991 to 2013, securing 90%-98% response rates...
November 20, 2017: Journal of Clinical Psychology
https://www.readbyqxmd.com/read/29156046/toward-a-cure-for-hepatitis-b-virus-infection-combination-therapy-involving-viral-suppression-and-immune-modulation-and-long-term-outcome
#16
Di Wu, Qin Ning
Chronic hepatitis B virus (HBV) infection remains a major global health burden. Currently, the approved therapeutic regimens include nucleos(t)ide analogues (NAs) and either interferon or pegylated interferon. NA therapy is generally safe and well tolerated, but the rate of posttreatment virologic relapse is high, making NA treatment a lifetime commitment. The benefits of pegylated interferon treatment include a finite duration, more-durable response and absence of viral resistance. However, sustained response to interferon alone is achieved only in a minority of patients, and side effects are common, which limit its clinical use...
November 16, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/29156016/pectus-excavatum-repair-after-sternotomy-the-chest-wall-international-group-experience-with-substernal-nuss-bars
#17
Dawn E Jaroszewski, Paul J Gustin, Frank-Martin Haecker, Hans Pilegaard, Hyung Joo Park, Shao-Tao Tang, Shuai Li, Li Yang, Sadashige Uemura, Jose Ribas Milanez De Campos, Robert Obermeyer, Frazier W Frantz, Michele Torre, Lisa McMahon, Andre Hebra, Chih-Chun Chu, J Duncan Phillips, David M Notrica, Antonio Messineo, Robert Kelly, Mustafa Yüksel
OBJECTIVES: Patients with pectus excavatum (PE) after prior sternotomy for cardiac surgery present unique challenges for repair of PE. Open repairs have been recommended because of concerns about sternal adhesions and cardiac injury. We report a multi-institutional experience with repair utilizing substernal Nuss bars in this patient population. METHODS: Surgeons from the Chest Wall International Group were queried for experience and retrospective data on PE repair using sub-sternal Nuss bars in patients with a history of median sternotomy for cardiac surgery (November 2000 to August 2015)...
October 1, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/29155863/molecular-detection-of-tick-borne-pathogens-in-cattle-from-southwestern-ethiopia
#18
Zerihun Hailemariam, Jürgen Krücken, Maximilian Baumann, Jabbar S Ahmed, Peter-Henning Clausen, Ard M Nijhof
Tick-borne diseases (TBDs) cause significant losses among livestock and impact the livelihoods of resource-poor farming communities worldwide. In Ethiopia, detailed studies on the epidemiology of tick-borne pathogens (TBPs) in cattle using sensitive molecular detection methods are scarce. The objective of this study was to determine the prevalence and species composition of bovine TBPs of veterinary significance in local cattle populations. A comprehensive cross-sectional epidemiological study was conducted in cattle populations of Illubabor zone in Southwestern Ethiopia from June to August 2013...
2017: PloS One
https://www.readbyqxmd.com/read/29155535/an-interesting-case-of-oral-inverted-ductal-papilloma
#19
Natasha Berridge, Mahesh Kumar
Ductal papillomas are rare benign papillary tumours of the minor salivary glands. Previously they have been classified into three subtypes: inverted ductal papilloma (IDP), sialadenoma papilliferum and intraductal papilloma. The oral inverted ductal papilloma is the least common of these lesions, with 48 cases reported to date in a search of the English-language literature. We describe an interesting case of oral IDP and highlight the pertinent clinical and histopathological features. Importantly, unlike the histologically similar inverted papilloma (IP) of the nose and paranasal sinuses, oral IDP is a completely benign lesion and is not associated with malignant change...
December 2016: Dental Update
https://www.readbyqxmd.com/read/29155511/laparoscopic-hepatectomy-for-colorectal-liver-metastases-located-in-all-segments-of-the-liver
#20
Deqing Wu, Wulin Wu, Yong Li, Shuntian Liang, Junjiang Wang, Xueqing Yao, Zhixiang Jian
PURPOSE: Laparoscopic hepatectomy is not a well-established treatment modality for colorectal liver metastases. Moreover, most reports have been limited to tumors in the anterolateral segments (segments 2, 3, 4b, 5, and 6). In this study we evaluated the short- and long-term outcomes after laparoscopic hepatectomy for colorectal liver metastases located in all segments, including tumors located in the posterosuperior segments (segments 1, 4a, 7, and 8). METHODS: This retrospective study included 102 patients who underwent laparoscopic hepatectomy for colorectal liver metastases with radical intent between January 2009 and January 2016...
July 2017: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
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