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https://www.readbyqxmd.com/read/28646805/natural-cancer-therapy-and-prevention-targeted-on-cancer-cells-and-cancer-stem-cells-based-on-the-cytochrome-p45o-enzyme-cyp1b1-a-commentary
#1
William R Ware
The importance of the P450 enzyme CYP1B1 in both cancer therapy and prevention are reviewed and evidence is discussed, which provides strong biological plausibility for the therapeutic merits of this approach. The significant resistance to chemotherapy among common cancers, and the realization that in many cases chemotherapy leaves behind drug-resistant cancer cells that eventually cause recurrence and metastatic disease, has recently prompted the search for natural compounds that would circumvent this problem...
June 23, 2017: Alternative Therapies in Health and Medicine
https://www.readbyqxmd.com/read/28646795/offsetting-the-impact-of-smoking-and-e-cigarette-vaping-on-the-cerebrovascular-system-and-stroke-injury-is-metformin-a-viable-countermeasure
#2
Mohammad A Kaisar, Heidi Villalba, Shikha Prasad, Taylor Liles, Ali Ehsan Sifat, Ravi K Sajja, Thomas J Abbruscato, Luca Cucullo
Recently published in vitro and in vivo findings strongly suggest that BBB impairment and increased risk for stroke by tobacco smoke (TS) closely resemble that of type-2 diabetes (2DM) and develop largely in response to common key modulators such oxidative stress (OS), inflammation and alterations of the endogenous antioxidative response system (ARE) regulated by the nuclear factor erythroid 2-related factor (Nrf2). Preclinical studies have also shown that nicotine (the principal e-liquid's ingredient used in e-cigarettes) can also cause OS, exacerbation of cerebral ischemia and secondary brain injury...
June 17, 2017: Redox Biology
https://www.readbyqxmd.com/read/28646761/regulation-on-the-aggregation-induced-emission-aie-of-dna-templated-silver-nanoclusters-by-bsa-and-its-hydrolysates
#3
Wei-Xian Wang, Yuqing Wu, Hong-Wei Li
The aggregation-induced emission (AIE) phenomenon of the metal nanoclusters (NCs) has been discovered quite recently, which is considered to be creative to improve the optical properties of NCs upon ligand aggregation. In the present study, we report an AIE system for double-stranded DNA-templated silver nanoclusters (AgNCs-dsDNA) by using bovine serum albumin (BSA) in solution, which induce a moderate emission enhancement of AgNCs (5-fold) and a blue-shift through a loosen interaction. In addition, significant luminescence enhancement (30-fold) is further stimulated by the addition of digestive enzyme to the system by altering the surface structure of the aggregated particles...
June 10, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28646734/investigating-articulated-heavy-vehicle-crashes-in-western-australia-using-a-spatial-approach
#4
Ori Gudes, Richard Varhol, Qian Chayn Sun, Lynn Meuleners
BACKGROUND: Recent developments in Western Australia's economy including widespread traffic congestion as well as road safety issues are increasingly becoming prominent. Previous studies relied on traditional statistical methods to investigate patterns and characteristics of motor vehicle crashes. Although useful, statistical analysis alone is incapable of providing a spatial context and is therefore unable to associate existing crash characteristics with a spatial distribution. AIMS: To identify concentrations or "hotspots" of articulated heavy vehicle crashes in WA between the years 2001-2013, by using a spatial analysis approach...
June 21, 2017: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/28646729/the-structure-of-ptsd-symptoms-according-to-dsm-5-and-idc-11-proposal-a-multi-sample-analysis
#5
M Cyniak-Cieciura, K Staniaszek, A Popiel, E Pragłowska, B Zawadzki
Posttraumatic stress disorder (PTSD) symptoms structure is a subject of ongoing debate since its inclusion in DSM-III classification in 1980. Different research on PTSD symptoms structure proved the better fit of four-factor and five-factor models comparing to the one proposed by DSM-IV. With the publication of DSM-5 classification, which introduced significant changes to PTSD diagnosis, the question arises about the adequacy of the proposed criteria to the real structure of disorder symptoms. Recent analyses suggest that seven-factor hybrid model is the best reflection of symptoms structure proposed to date...
May 4, 2017: European Psychiatry: the Journal of the Association of European Psychiatrists
https://www.readbyqxmd.com/read/28646724/zinc-and-calcium-alter-the-relationship-between-mitochondrial-respiration-ros-and-membrane-potential-in-rainbow-trout-oncorhynchus-mykiss-liver-mitochondria
#6
Mahmoud S Sharaf, Don Stevens, Collins Kamunde
At excess levels, zinc (Zn) disrupts mitochondrial functional integrity and induces oxidative stress in aquatic organisms. Although much is known about the modulation of Zn toxicity by calcium (Ca) in fish, their interactions at the mitochondrial level have scarcely been investigated. Here we assessed the individual and combined effects of Zn and Ca on the relationship between mitochondrial respiration, ROS and membrane potential (ΔΨmt) in rainbow trout liver mitochondria. We tested if cation uptake through the mitochondrial calcium uniporter (MCU) is a prerequisite for Zn- and/or Ca-induced alteration of mitochondrial function...
June 12, 2017: Aquatic Toxicology
https://www.readbyqxmd.com/read/28646716/histopathologic-differences-partially-distinguish-syndromic-aortic-diseases
#7
Kevin M Waters, Lisa M Rooper, Andrew Guajardo, Marc K Halushka
A variety of syndromic diseases such as Marfan syndrome, Loeys-Dietz syndrome, and bicuspid aortic valve with aneurysm along with risk factors of smoking and hypertension result in ascending aortic aneurysms and dissections. Historically, a complicated variety of terms have been used to describe a range of histopathologies that are present in resected specimens. As a result, no consistent patterns of histopathology have been reported. We used the recent Society for Cardiovascular Pathology/Association for European Cardiovascular Pathology consensus statement on nomenclature and diagnostic criteria for noninflammatory aortic disease to blindly evaluate 148 surgically resected specimens...
June 15, 2017: Cardiovascular Pathology: the Official Journal of the Society for Cardiovascular Pathology
https://www.readbyqxmd.com/read/28646697/seroepidemiology-of-whooping-cough-in-the-czech-republic-estimates-of-incidence-of-infection-in-adults
#8
R Chlibek, J Smetana, R Sosovickova, K Fabianova, J Zavadilova, P Dite, P Gal, P Naplava, D Lzicarova
OBJECTIVES: Despite widespread vaccination programmes, pertussis remains a significant health burden in many countries. Low awareness of the disease, the high rate of asymptomatic cases in adults and difficulties with diagnosis could explain the under-reporting of pertussis. The lack of data on actual incidence constitutes an obstacle for public health authorities for the implementation of a vaccination strategy against pertussis in adults. The aim of this study was to evaluate the seroprevalence of antibodies against Bordetella pertussis infection in adults and to estimate the actual incidence of the disease compared with the reported incidence...
June 21, 2017: Public Health
https://www.readbyqxmd.com/read/28646691/what-housing-features-should-inform-the-development-of-housing-solutions-for-adults-with-neurological-disability-a-systematic-review-of-the-literature
#9
REVIEW
Courtney J Wright, Heidi Zeeman, Elizabeth Kendall, Jennifer A Whitty
Despite the recent emphasis in Australian political, academic, and legislative narratives to more actively promote real housing choice for people with high healthcare and support needs, there is a lack of understanding regarding the specific housing features that might constitute better housing solutions for this population. Inclusive housing provision in Australia rightly emphasises safety and accessibility issues but often fails to incorporate factors related to broader psychosocial elements of housing such as dwelling location, neighbourhood quality, and overall design...
June 21, 2017: Health & Place
https://www.readbyqxmd.com/read/28646678/bioengineering-for-intestinal-organoid-cultures
#10
REVIEW
Ge-Ah Kim, Jason R Spence, Shuichi Takayama
Recent advances allow access to human cell-based intestinal organoids that recreate human physiology to levels not possible with conventional 2D cell cultures. Despite their huge potential, there are many challenges that remain. This review will cover recent bioengineering approaches to improve organoid maturation, scale up, reproducibility and analysis. The first section covers the advances in engineering the culture environment, followed by the section on tools for micro-manipulation and analysis of organoids...
June 21, 2017: Current Opinion in Biotechnology
https://www.readbyqxmd.com/read/28646675/conformational-regulation-of-crispr-associated-nucleases
#11
REVIEW
Ryan N Jackson, Paul Bg van Erp, Samuel H Sternberg, Blake Wiedenheft
Adaptive immune systems in bacteria and archaea rely on small CRISPR-derived RNAs (crRNAs) to guide specialized nucleases to foreign nucleic acids. The activation of these nucleases is controlled by a series of molecular checkpoints that ensure precise cleavage of nucleic acid targets, while minimizing toxic off-target cleavage events. In this review, we highlight recent advances in understanding regulatory mechanisms responsible for controlling the activation of these nucleases and identify emerging regulatory themes conserved across diverse CRISPR systems...
June 21, 2017: Current Opinion in Microbiology
https://www.readbyqxmd.com/read/28646672/transcranial-magnetic-stimulation-to-visual-cortex-induces-suboptimal-introspection
#12
Megan A K Peters, Jeremy Fesi, Namema Amendi, Jeffrey D Knotts, Hakwan Lau, Tony Ro
Blindsight patients with damage to the visual cortex can discriminate objects but report no conscious visual experience. This provides an intriguing opportunity to allow the study of subjective awareness in isolation from objective performance capacity. However, blindsight is rare, so one promising way to induce the effect in neurologically intact observers is to apply transcranial magnetic stimulation (TMS) to the visual cortex. Here, we used a recently-developed criterion-free method to conclusively rule out an important alternative interpretation of TMS-induced performance without awareness: that TMS-induced blindsight may be just due to conservative reporting biases for conscious perception...
June 2, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28646669/validation-of-a-commercial-kit-aimed-to-the-detection-of-pathogenic-anisakid-nematodes-in-fish-products
#13
Serena Cavallero, Alessandro Bruno, Enrico Arletti, Monica Caffara, Maria Letizia Fioravanti, Antonella Costa, Gaetano Cammilleri, Stefania Graci, Vincenzo Ferrantelli, Stefano D'Amelio
Anisakids are parasitic nematodes responsible for a zoonosis that occurs following the ingestion of fish and fish products infected with larvae belonging to the genera Anisakis and Pseudoterranova. Rarely Contracaecum is found in association with gastric/intestinal illness, while Hysterothylacium is commonly considered not pathogenic. Although Real Time PCR assays have been recently used with the aim to detect and quantify these parasites in food products, methods applied did not undergo through extensive validation process, a feature highly desirable or mandatory in the case of testing laboratories accredited for the ISO EN 17025:2005...
June 15, 2017: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/28646660/towards-understanding-transcriptional-networks-in-cellular-reprogramming
#14
REVIEW
Jaber Firas, Jose M Polo
Most of the knowledge we have on the molecular mechanisms of transcription factor mediated reprogramming comes from studies conducted in induced pluripotency. Recently however, a few studies investigated the mechanisms of cellular reprogramming in direct and indirect transdifferentiation, which allows us to explore whether shared parallel mechanisms can be drawn. Moreover, there are currently several computational tools that have been developed to predict and enhance the reprogramming process by reconstructing the transcriptional networks of reprogramming cells...
June 21, 2017: Current Opinion in Genetics & Development
https://www.readbyqxmd.com/read/28646659/analysis-of-recombinant-monoclonal-antibodies-in-hydrophilic-interaction-chromatography-a-generic-method-development-approach
#15
Balázs Bobály, Valentina D'Atri, Alain Beck, Davy Guillarme, Szabolcs Fekete
Hydrophilic interaction liquid chromatography (HILIC) is a well-established technique for the separation and analysis of small polar compounds. A recently introduced widepore stationary phase expanded HILIC applications to larger molecules, such as therapeutic proteins. In this paper, we present some generic HILIC conditions adapted for a wide range of FDA and EMA approved recombinant monoclonal antibody (mAb) species and for an antibody-drug conjugate (ADC). Seven approved mAbs possessing various isoelectric point (pI) and hydrophobicity as well as a cysteine conjugated ADC were used in this study...
June 15, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28646641/do-large-mergers-increase-or-decrease-the-productivity-of-pharmaceutical-r-d
#16
Michael S Ringel, Michael K Choy
There is current uncertainty regarding the effects of mergers on pharmaceutical R&D productivity, with various mechanisms reported by which mergers could either help or harm R&D, and mixed empirical findings in prior analyses. Here, we present an analysis that is novel in several ways: we use downstream measures of R&D productivity, account for both inputs and outputs in our calculations, and use a self-controlled design. We find that recent large pharmaceutical mergers are associated with statistically significant increases in R&D productivity...
June 21, 2017: Drug Discovery Today
https://www.readbyqxmd.com/read/28646625/fluctuating-effects-of-genetic-and-plastic-changes-in-body-mass-on-population-dynamics-in-a-large-herbivore
#17
Gabriel Pigeon, Thomas H G Ezard, Marco Festa-Bianchet, David W Coltman, Fanie Pelletier
Recent studies suggest that evolutionary changes can occur on a contemporary time scale. Hence, evolution can influence ecology and vice-versa. To understand the importance of eco-evolutionary dynamics in population dynamics, we must quantify the relative contribution of ecological and evolutionary changes to population growth and other ecological processes. To date, however, most eco-evolutionary dynamics studies have not partitioned the relative contribution of plastic and evolutionary changes in traits on population, community and ecosystem processes...
June 24, 2017: Ecology
https://www.readbyqxmd.com/read/28646615/definition-of-healthcare-associated-influenza-a-review-and-results-from-an-international-survey
#18
Elodie Munier-Marion, Thomas Bénet, Philippe Vanhems
AIM: To describe definitions of healthcare-associated influenza (HAI) in recent literature and in hospitals participating in a survey of Society for Healthcare Epidemiology of America (SHEA) Research Network (SRN) members. METHOD: A review with PubMed search was undertaken to retrieve articles published between 2008 and 2016, focusing on the subject headings "influenza, human" and "cross infection". Definitions of clinical influenza-like illness (ILI) and HAI were identified...
June 24, 2017: Influenza and Other Respiratory Viruses
https://www.readbyqxmd.com/read/28646609/validation-of-psoriasis-severity-classification-based-on-use-of-topical-or-systemic-treatment
#19
Alexander Egeberg, Mette Gyldenløve, Claus Zachariae, Lone Skov
In recent years, population-based studies have reported a considerable burden of disease among patients with psoriasis. Cumulative epidemiological data suggests that patients with psoriasis have an increased incidence and prevalence of cardio-metabolic comorbidities and a disease-severity dependent relationship is often reported. An accepted classification system is the Psoriasis Area and Severity Index (PASI), where one proposed categorization suggests that a score of less than 7 as mild, a score between 7 and 12 is moderate, and a score greater than 12 is consistent with severe psoriasis...
June 24, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28646591/morphological-characteristics-and-hpv-genotype-predict-the-treatment-response-in-cutaneous-warts
#20
G K Hogendoorn, S C Bruggink, M N C de Koning, J A H Eekhof, K E Hermans, R Rissmann, J Burggraaf, R Wolterbeek, K D Quint, S T P Kouwenhoven, J N B Bavinck
BACKGROUND: Cutaneous warts have a cure rate after therapy of no more than approximately 50%. Recently, we developed and validated a standard assessment tool for warts (CWARTS) based on phenotypical characteristics. OBJECTIVES: To assess whether patient and morphological wart characteristics predict the HPV type in the specific wart and whether these characteristics as well as the HPV type predict a favourable treatment response. METHODS: Photographs were used to score 9 morphological wart characteristics using the newly developed CWARTS tool...
June 24, 2017: British Journal of Dermatology
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