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https://www.readbyqxmd.com/read/28934825/the-potential-roles-of-melf-pattern-microvessel-density-and-vegf-expression-in-survival-of-patients-with-endometrioid-endometrial-carcinoma-a-morphometrical-and-immunohistochemical-analysis-of-100-cases
#1
Dmitry Aleksandrovich Zinovkin, Md Zahidul Islam Pranjol, Daniil Rudolfovich Petrenyov, Eldar Arkadievich Nadyrov, Oleg Gennadievich Savchenko
BACKGROUND: In this study, we hypothesized that microcystic, elongated, fragmented (MELF)-pattern, vascular endothelial growth factor (VEGF) expression by cancer cells and microvessel density of cancer stroma may be associated with progression of endometrioid adenocarcinoma. METHODS: The study used data from the Belarus Cancer Registry and archival histological material of 100 patients with retrospectively known good (survival) and poor (disease progression and death) outcomes...
September 2017: Journal of Pathology and Translational Medicine
https://www.readbyqxmd.com/read/28934791/a-practical-guide-for-treatment-of-pain-in-patients-with-systemic-mast-cell-activation-disease
#2
Stefan Wirz, Gerhard J Molderings
Systemic mast cell activation disease (MCAD, a subclass of mastocytosis), which has a prevalence of around 17% (at least in the German population), is characterized by accumulation of genetically altered dysfunctional mast cells with abnormal release of these cells' mediators. Since mast cells affect functions in potentially every organ system, often without causing abnormalities in routine laboratory or radiologic testing, this disease has to be considered routinely in the differential diagnosis of patients with chronic multisystem polymorbidity of a generally inflammatory and allergic theme...
September 2017: Pain Physician
https://www.readbyqxmd.com/read/28934785/1-year-results-of-a-randomized-controlled-trial-of-conservative-management-vs-minimally-invasive-surgical-treatment-for-sacroiliac-joint-pain
#3
Julius Dengler Dengler, Djaya Kools, Robert Pflugmacher, Alessandro Gasbarrini, Domenico Prestamburgo, Paolo Gaetani, Eddie van Eeckhoven, Daniel Cher, Bengt Sturesson
BACKGROUND: Low back pain (LBP) emanating from the sacroiliac joint (SIJ) is a common finding. Devices to fuse the SIJ are now commercially available, but high-quality evidence supporting their effectiveness is limited. OBJECTIVES: To compare the safety and effectiveness of conservative management (CM) to minimally invasive sacroiliac joint fusion (SIJF) in patients with chronic LBP originating from the SIJ. STUDY DESIGN: Prospective, multicenter randomized controlled trial...
September 2017: Pain Physician
https://www.readbyqxmd.com/read/28934784/sonographic-guidance-for-supraclavicular-brachial-plexus-blocks-single-vs-double-injection-cluster-approach
#4
Jung Ju Choi, Hyun Jeong Kwak, Wol Seon Jung, Seung Hyun Chung, Mi Geum Lee
BACKGROUND: The cluster approach for supraclavicular brachial plexus block (SC-BPB) can be easily performed but may result in asymmetric local anesthetic (LA) spread. The authors hypothesized that the use of a cluster approach in each of the 2 planes would achieve better 3-dimensional LA distribution than the traditional single cluster approach. OBJECTIVES: The purpose of the present study was to compare a double injection (DI) in 2 planes (one injection in each plane) with the traditional single injection (SI) cluster approach for ultrasound-guided SC-BPB...
September 2017: Pain Physician
https://www.readbyqxmd.com/read/28934780/efficacy-of-cannabis-based-medicines-for-pain-management-a-systematic-review-and-meta-analysis-of-randomized-controlled-trials
#5
J Aviram, G Samuelly-Leichtag
BACKGROUND: The management of chronic pain is a complex challenge worldwide. Cannabis-based medicines (CBMs) have proven to be efficient in reducing chronic pain, although the topic remains highly controversial in this field. OBJECTIVES: This study's aim is to conduct a conclusive review and meta-analysis, which incorporates all randomized controlled trials (RCTs) in order to update clinicians' and researchers' knowledge regarding the efficacy and adverse events (AEs) of CBMs for chronic and postoperative pain treatment...
September 2017: Pain Physician
https://www.readbyqxmd.com/read/28934728/has-toxicity-testing-moved-into-the-21st-century-a-survey-and-analysis-of-perceptions-in-the-field-of-toxicology
#6
Virginia Zaunbrecher, Elizabeth Beryt, Daniela Parodi, Donatello Telesca, Joseph Doherty, Timothy Malloy, Patrick Allard
BACKGROUND: Ten years ago, leaders in the field of toxicology called for a transformation of the discipline and a shift from primarily relying on traditional animal testing to incorporating advances in biotechnology and predictive methodologies into alternative testing strategies (ATS). Governmental agencies and academic and industry partners initiated programs to support such a transformation, but a decade later, the outcomes of these efforts are not well understood. OBJECTIVES: We aimed to assess the use of ATS and the perceived barriers and drivers to their adoption by toxicologists and by others working in, or closely linked with, the field of toxicology...
August 30, 2017: Environmental Health Perspectives
https://www.readbyqxmd.com/read/28934716/automatic-detection-of-micronuclei-by-cell-microscopic-image-processing
#7
Mohammad Taghi Bahreyni Toossi, Hosein Azimian, Omid Sarrafzadeh, Shokoufeh Mohebbi, Shokouhozaman Soleymanifard
With the development and applications of ionizing radiation in medicine, the radiation effects on human health get more and more attention. Ionizing radiation can lead to various forms of cytogenetic damage, including increased frequencies of micronuclei (MNi) and chromosome abnormalities. The cytokinesis block micronucleus (CBMN) assay is widely used method for measuring MNi to determine chromosome mutations or genome instability in cultured human lymphocytes. The visual scoring of MNi is time-consuming and scorer fatigue can lead to inconsistency...
August 12, 2017: Mutation Research
https://www.readbyqxmd.com/read/28934711/alterations-of-larval-photo-dependent-swimming-responses-pdr-new-endpoints-for-rapid-and-diagnostic-screening-of-aquatic-contamination
#8
Luis Colón-Cruz, Lauren Kristofco, Jonathan Crooke-Rosado, Agnes Acevedo, Aranza Torrado, Bryan W Brooks, María A Sosa, Martine Behra
Detection and toxicity assessment of waterborne contaminants are crucial for protecting human health and the environment. Development of easy-to-implement, rapid and cost-effective tools to measure anthropogenic effects on watersheds are critical for responsible management, particularly in times of increasing development and urbanization. Traditionally, environmental toxicology has focused on limited endpoints, such as lethality and fertility, which are directly affecting population levels. However, more sensitive readings are needed to assess sub-lethal effects...
September 18, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28934697/detection-of-bcg-bacteria-using-a-magnetoresistive-biosensor-a-step-towards-a-fully-electronic-platform-for-tuberculosis-point-of-care-detection
#9
Teresa G Barroso, Rui C Martins, Elisabete Fernandes, Susana Cardoso, José Rivas, Paulo P Freitas
Tuberculosis is one of the major public health concerns. This highly contagious disease affects more than 10.4 million people, being a leading cause of morbidity by infection. Tuberculosis is diagnosed at the point-of-care by the Ziehl-Neelsen sputum smear microscopy test. Ziehl-Neelsen is laborious, prone to human error and infection risk, with a limit of detection of 10(4) cells/mL. In resource-poor nations, a more practical test, with lower detection limit, is paramount. This work uses a magnetoresistive biosensor to detect BCG bacteria for tuberculosis diagnosis...
September 6, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28934673/an-analysis-of-chemicals-and-other-constituents-found-in-produced-water-from-hydraulically-fractured-wells-in-california-and-the-challenges-for-wastewater-management
#10
Emily A Chittick, Tanja Srebotnjak
As high-volume hydraulic fracturing (HF) has grown substantially in the United States over the past decade, so has the volume of produced water (PW), i.e., briny water brought to the surface as a byproduct of oil and gas production. According to a recent study (Groundwater Protection Council, 2015), more than 21 billion barrels of PW were generated in 2012. In addition to being high in TDS, PW may contain hydrocarbons, PAH, alkylphenols, naturally occurring radioactive material (NORM), metals, and other organic and inorganic substances...
September 18, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28934657/characterisation-of-artisanal-mine-waste-on-buru-island-indonesia-and-toxicity-to-the-brittle-star-amphipholis-squamata
#11
Amanda J Reichelt-Brushett, Bernard Thomas, Pelli L Howe, Yusthinus Male, Malcolm W Clark
Artisanal small-scale gold mining (ASGM) using mercury (Hg) amalgamation commenced on Buru Island, Indonesia, in 2012, but was halted in 2015 due to concerns of widespread Hg contamination. Much of the Hg used in the mining process is lost to trommel waste which is disposed of in settlement ponds that drain into adjacent waterways and into Kayeli Bay. Several thousand unmanaged trommel sites and associated tailing ponds exist on Buru Island. This study shows that waste from the Marloso trommel at the Gogrea site contained 203 mg/kg total Hg (THg), with a negligible proportion present as bioavailable methyl Hg (MeHg) and a low total organic carbon content...
September 12, 2017: Chemosphere
https://www.readbyqxmd.com/read/28934620/clinical-utility-and-tolerability-of-transcranial-direct-current-stimulation-in-mild-cognitive-impairment
#12
Venkatachalam Murugaraja, V Shivakumar, Palanimuthu T Sivakumar, Preeti Sinha, Ganesan Venkatasubramanian
BACKGROUND: Neuromodulatory interventions like transcranial direct current stimulation (tDCS) is emerging as a potential therapeutic strategy to promote cognitive function in healthy and pathological aging. There is need for more studies evaluating the utility and tolerability of tDCS in Mild cognitive impairment (MCI). Since MCI is considered as the prodromal stage of dementia, it has emerged as the most important target for intervention in dementia. OBJECTIVE AND METHOD: This study investigated the feasibility, tolerability and clinical utility of tDCS in patients with MCI...
September 8, 2017: Asian Journal of Psychiatry
https://www.readbyqxmd.com/read/28934523/sleep-stage-transition-dynamics-reveal-specific-stage-2-vulnerability-in-insomnia
#13
Yishul Wei, Michele A Colombo, Jennifer R Ramautar, Tessa F Blanken, Ysbrand D van der Werf, Kai Spiegelhalder, Bernd Feige, Dieter Riemann, Eus J W Van Someren
Study Objectives: Objective sleep impairments in insomnia disorder (ID) are insufficiently understood. The present study evaluated whether whole-night sleep stage dynamics derived from polysomnography (PSG) differ between people with ID and matched controls and whether sleep stage dynamic features discriminate them better than conventional sleep parameters. Methods: Eighty-eight participants aged 21-70 years, including 46 with ID and 42 age- and sex-matched controls without sleep complaints, were recruited through www...
September 1, 2017: Sleep
https://www.readbyqxmd.com/read/28934494/derivatives-of-bst-like-gss-polymerase-with-improved-processivity-and-inhibitor-tolerance
#14
Igor P Oscorbin, Ekaterina A Belousova, Ulyana A Boyarskikh, Aleksandr I Zakabunin, Evgeny A Khrapov, Maksim L Filipenko
At the moment, one of the actual trends in medical diagnostics is a development of methods for practical applications such as point-of-care testing, POCT or research tools, for example, whole genome amplification, WGA. All the techniques are based on using of specific DNA polymerases having strand displacement activity, high synthetic processivity, fidelity and, most significantly, tolerance to contaminants, appearing from analysed biological samples or collected under purification procedures. Here, we have designed a set of fusion enzymes based on catalytic domain of DNA polymerase I from Geobacillus sp...
September 19, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28934488/de-novo-pathway-based-biomarker-identification
#15
Nicolas Alcaraz, Markus List, Richa Batra, Fabio Vandin, Henrik J Ditzel, Jan Baumbach
Gene expression profiles have been extensively discussed as an aid to guide the therapy by predicting disease outcome for the patients suffering from complex diseases, such as cancer. However, prediction models built upon single-gene (SG) features show poor stability and performance on independent datasets. Attempts to mitigate these drawbacks have led to the development of network-based approaches that integrate pathway information to produce meta-gene (MG) features. Also, MG approaches have only dealt with the two-class problem of good versus poor outcome prediction...
September 19, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28934465/regulation-of-chromatin-folding-by-conformational-variations-of-nucleosome-linker-dna
#16
Jenna M Buckwalter, Davood Norouzi, Anna Harutyunyan, Victor B Zhurkin, Sergei A Grigoryev
Linker DNA conformational variability has been proposed to direct nucleosome array folding into more or less compact chromatin fibers but direct experimental evidence for such models are lacking. Here, we tested this hypothesis by designing nucleosome arrays with A-tracts at specific locations in the nucleosome linkers to induce inward (AT-IN) and outward (AT-OUT) bending of the linker DNA. Using electron microscopy and analytical centrifugation techniques, we observed spontaneous folding of AT-IN nucleosome arrays into highly compact structures, comparable to those induced by linker histone H1...
September 19, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28934458/risk-of-human-infections-with-highly-pathogenic-h5n2-and-low-pathogenic-h7n1-avian-influenza-strains-during-outbreaks-in-ostriches-in-south-africa
#17
Marietjie Venter, Florette K Treurnicht, Amelia Buys, Stefano Tempia, Rudo Samudzi, Johanna McAnerney, Charlene A Jacobs, Juno Thomas, Lucille Blumberg
Background: Risk factors for human infection with highly pathogenic (HP) and low-pathogenic (LP) avian influenza (AI) H5N2 and H7N1 were investigated during outbreaks in ostriches in the Western Cape province, South Africa. Methods: Serum surveys were conducted for veterinarians, farmworkers, and laboratory and abattoir workers involved in 2 AI outbreaks in the Western Cape province: (1) controlling and culling of 42000 ostriches during (HPAI)H5N2 outbreaks in ostriches (2011) (n = 207); (2) movement control during (LPAI)H7N1 outbreaks in 2012 (n = 66)...
September 15, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28934437/group-b-streptococcus-and-the-vaginal-microbiota
#18
Geoffrey H Rosen, Tara M Randis, Purnahamsi V Desai, Katherine J Sapra, Bing Ma, Pawel Gajer, Michael S Humphrys, Jacques Ravel, Shari E Gelber, Adam J Ratner
Background: Streptococcus agalactiae (group B Streptococcus [GBS]) is an important neonatal pathogen and emerging cause of disease in adults. The major risk factor for neonatal disease is maternal vaginal colonization. However, little is known about the relationship between GBS and vaginal microbiota. Methods: Vaginal lavage samples from nonpregnant women were tested for GBS, and amplicon-based sequencing targeting the 16S ribosomal RNA V3-V4 region was performed...
September 15, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28934419/characterizing-antigenic-determinants-in-helicobacter-pylori-caga-capable-of-detecting-serum-antibodies-in-children
#19
Min-Kyoung Shin, Jin-Su Jun, Soon-Wook Kwon, Dong-Hae Lee, Jong-Hun Ha, Jin-Sik Park, Hyung Lyun Kang, Seung Chul Baik, Ji Sook Park, Ji-Hyun Seo, Hee-Shang Youn, Myung Je Cho, Woo Kon Lee
Helicobacter pylori can persistently colonize the mucosa of the human stomach, resulting in gastric disorders. Endoscopic biopsy for rapid urease test and histopathologic examination are considered as the most accurate diagnostic methods for H. pylori infection. Serological methods are recommended for children because of invasiveness of the diagnosis mentioned above. Here, the cytotoxin-associated gene A protein (Cag A), as an immunodominant antigen, was subdivided to determine which regions harbor antigenicity for humans...
November 30, 2017: Pathogens and Disease
https://www.readbyqxmd.com/read/28934358/pre-service-teachers-perceived-value-of-general-pedagogical-knowledge-for-practice-relations-with-epistemic-beliefs-and-source-beliefs
#20
Samuel Merk, Tom Rosman, Julia Rueß, Marcus Syring, Jürgen Schneider
Pre-service teachers tend to devalue general pedagogical knowledge (GPK) as a valid source for deriving successful teaching practices. The present study investigated beliefs about knowledge sources and epistemic beliefs as predictors for students' perceived value of GPK. Three pre-registered hypotheses were tested. We expected beliefs that GPK originates from scientific sources to entail a devaluation of GPK (Hypothesis 1). Concerning epistemic beliefs, we expected absolute beliefs to positively, and multiplistic beliefs to negatively predict pre-service teachers' perceived practical value of GPK (Hypothesis 2)...
2017: PloS One
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