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White coat effect

Akanksha Bhatnagar, Ulrich Pein, Silke Markau, Karl Weigand, Paolo Fornara, Matthias Girndt, Eric Seibert
BACKGROUND/AIMS: We compare conventional office blood pressure measurements with automated SPRINT-study type readings in kidney transplant recipients in order to determine the impact of the white coat effect in a prospective observational study. METHODS: Adult patients with a functional renal transplant not dependent on dialysis were eligible. Readings were taken in the office in presence of the physician with an oscillometric method. Afterwards, readings were repeated with the patients resting alone in a quiet examination room with an automated blood pressure monitor...
March 6, 2018: Kidney & Blood Pressure Research
Mehran Abolbashari
PURPOSE OF REVIEW: This review aims to clarify the cardiovascular risk of white coat hypertension (WCH). RECENT FINDINGS: Cardiovascular risk of WCH has been evaluated in multiple meta-analyses and population-based studies. International Database on Ambulatory Blood Pressure Monitoring in Relation to Cardiovascular Outcomes study evaluated the cardiovascular risk in 653 patients with WCH and 5137 normotensive patients. The patients were age-matched and were followed for 10...
March 8, 2018: Current Cardiology Reports
Marketa Zimova, Klaus Hackländer, Jeffrey M Good, José Melo-Ferreira, Paulo Célio Alves, L Scott Mills
Animals that occupy temperate and polar regions have specialized traits that help them survive in harsh, highly seasonal environments. One particularly important adaptation is seasonal coat colour (SCC) moulting. Over 20 species of birds and mammals distributed across the northern hemisphere undergo complete, biannual colour change from brown in the summer to completely white in the winter. But as climate change decreases duration of snow cover, seasonally winter white species (including the snowshoe hare Lepus americanus, Arctic fox Vulpes lagopus and willow ptarmigan Lagopus lagopus) become highly contrasted against dark snowless backgrounds...
March 5, 2018: Biological Reviews of the Cambridge Philosophical Society
Yukiko Komeno, Yasunori Ota, Tomohiko Koibuchi, Yoichi Imai, Kuniko Iihara, Tomiko Ryu
BACKGROUND Syphilis is a sexually transmitted disease caused by the pathogen Treponema pallidum. Prevalence continues to rise, especially among men who have sex with men (MSM). Due to changes in patterns of sexual activity, manifestations of the disease are highly variable. CASE REPORT A 27-year-old male visited the hospital for a low-grade fever and tender 5-cm mass in the right side of his neck. His right tonsil was swollen and covered with a white coating. Levofloxacin was prescribed, but ineffective. The patient's levels of liver function enzymes increased gradually...
March 4, 2018: American Journal of Case Reports
George Thomas, Paul E Drawz
Patients with CKD typically have hypertension. Manual BP measurement in the office setting was used to define hypertension, establish eligibility, and assess BP targets in the epidemiologic studies and early randomized, controlled trials that inform current management of hypertension. Use of automated oscillometric devices has largely replaced manual BP measurement in the office and clinical trials. These newer devices may reduce the white coat effect and facilitate guideline-adherent measurement protocols...
February 26, 2018: Clinical Journal of the American Society of Nephrology: CJASN
Amish Asthana, Charles McRae White, Megan Douglass, William S Kisaalita
The lack of prediction accuracy during drug development and screening risks complications during human trials, such as drug-induced liver injury (DILI), and has led to a demand for robust, human cell-based, in vitro assays for drug discovery. Microporous polymer-based scaffolds offer an alternative to the gold standard flat tissue culture plastic (2D TCPS) and other 3D cell culture platforms as the porous material entraps cells, making it advantageous for automated liquid handlers and high-throughput screening (HTS)...
February 21, 2018: Biotechnology Progress
Matthew D Smith, Hemamala I Karunadasa
With nearly 20% of global electricity consumed by lighting, more efficient illumination sources can enable massive energy savings. However, effectively creating the high-quality white light required for indoor illumination remains a challenge. To accurately represent color, the illumination source must provide photons with all the energies visible to our eye. Such a broad emission is difficult to achieve from a single material. In commercial white-light sources, one or more light-emitting diodes, coated by one or more phosphors, yield a combined emission that appears white...
February 20, 2018: Accounts of Chemical Research
Adam Taylor, Alex Dexter, Josephine Bunch
In this study we have explored several aspects of regional analyte suppression in mass spectrometry imaging of a heterogeneous sample; transverse cryosections of mouse brain. Olanzapine was homogeneously coated across the section prior to DESI and MALDI mass spectrometry imaging. We employed the concept of a tissue extinction coefficient (TEC) to assess suppression of an analyte on tissue relative to its intensity in an off tissue region. We expanded the use of TEC, by first segmenting anatomical regions using graph-cuts clustering, and calculating a TEC for each cluster...
February 20, 2018: Analytical Chemistry
Panagiotis I Georgianos, Eleni Champidou, Vassilios Liakopoulos, Elias V Balaskas, Pantelis E Zebekakis
In the era of newly introduced hypertension guidelines recommending lower blood pressure (BP) targets for drug-treated hypertensives, the necessity for optimized management of hypertension becomes even more urgent. The concept of home BP-guided antihypertensive therapy is for long suggested as a simple and feasible approach to improve BP control rates and optimize the management of hypertension. Home BP-guided antihypertensive therapy is particularly applicable to hypertensives with chronic kidney disease (CKD) for several reasons including the following: (1) difficult-to-control BP and high BP variability in the CKD setting; (2) poor accuracy of office BP in determining hypertension control status and detecting "white-coat" and "masked" hypertension; (3) poor value of routine office BP recordings in predicting the longitudinal progression of target-organ damage; and (4) superiority of home BP over office BP recordings in prognosticating the risk of incident end-stage renal disease or death...
February 10, 2018: Journal of the American Society of Hypertension: JASH
Benoit Lequeux, Charles Uzan, Michaela B Rehman
OBJECTIVES: In cardiology, resting heart rate (HR) and blood pressure (BP) are key elements and are used to adapt treatment. However HR measured in consultation may not reflect true resting HR. We hypothesize that there may be a "white-coat" effect like with BP and that there may be an association between HR variations and BP variations. METHODS: This prospective, monocentric, observational, pilot study (January-April 2016) included 57 consecutive ambulatory patients at Poitiers University Hospital, France (58% male, mean age 64 years)...
January 2018: Indian Heart Journal
Savita Chaudhary, Priyanka Sharma, Arshpreet Kaur, Rajeev Kumar, S K Mehta
This manuscript represents the synthesis of silica nanoparticles modified with four different types of cationic surfactants. The surfactant capped nanoparticles have better control over the size of silica nanoparticles. The as formed as model nanomaterials were used for the removal of naphthalene, a simple white crystalline polycyclic aromatic hydrocarbon (PAH) from aqueous media. The obtained materials were characterized by various microscopic and spectroscopic techniques. The average particle size of nanoparticles was approximately between 50 and 75 nm...
May 1, 2018: Journal of Nanoscience and Nanotechnology
Hadi Hezaveh, Steffen Cosson, Ellen A Otte, Guannan Su, Benjamin D Fairbanks, Justin J Cooper-White
Capturing cell-secreted extracellular matrix (ECM) proteins through cooperative binding with high specificity and affinity is an important function of native tissue matrices during both tissue homeostasis and repair. However, whilst synthetic hydrogels, such as those based on polyethylene glycol (PEG), are often proposed as ideal materials to deliver human mesenchymal stem cells (hMSCs) to sites of injury to enable tissue repair, they do not have this capability, a capability that would enable cells to actively remodel their local extracellular microenvironment and potentially provide the required feedback control for more effective tissue genesis...
February 13, 2018: Biomacromolecules
Linli Xue, Yanan Li, Bingling Zhao, Tianzhi Chen, Yanjun Dong, Ruiwen Fan, Jingwei Li, Haidong Wang, Xiaoyan He
Tyrosinase‑related protein 2 (TRP‑2) is one of the most important members of the tyrosinase family, and is a key enzyme involved in melanin biosynthesis. In the present study, a skin transcriptome profile, immunohistochemistry, western blotting and reverse transcription‑quantitative polymerase chain reaction were used to investigate TRP‑2 expression in sheep with different coat colors, namely, black, white and black‑white. TRP‑2 was overexpressed in melanocytes in order to study the effect of TRP‑2 on melanin production...
February 6, 2018: Molecular Medicine Reports
Zheng Xie, Yongzhong Wu, Xingming Sun, Shixin Liu, Fukun Ma, Gang Zhao, Xiaopeng Hao, Shuyun Zhou
Hydrophilic hydroxylated hexagonal boron nitride nanosheets (BNNSs), also called 'white graphene', exhibit high water solubility, compatibility, dispersity with physical and/or chemical effects on the gel matrix, and unexpected but outstanding near-infrared adsorption and nonlinear optical limiting properties. These properties mean that hydroxylated BNNSs are suitable for practical applications in solidification and devices. Hydroxylated BNNSs are doped into an organically modified silicate matrix through a facile sol-gel process...
February 13, 2018: Nanoscale
Suzanne M de la Monte, Jared Kay, Emine B Yalcin, Jillian J Kril, Donna Sheedy, Greg T Sutherland
BACKGROUND: Chronic alcohol use disorders (AUD) are associated with white matter (WM) degeneration with altered myelin integrity. Matrix assisted laser desorption ionization-imaging mass spectrometry (MALDI-IMS) enables high throughput analysis of myelin lipid biochemical histopathology to help characterize disease mechanisms. PURPOSE: This study utilized MALDI-IMS to investigate frontal lobe WM myelin lipid abnormalities in AUD. METHODS: Standardized cores of formalin-fixed WM from Brodmann Area 4 (BA4) and BA8/9 of 20 postmortem AUD and 19 control adult human brains were embedded in carboxymethyl-cellulose, cryo-sectioned (8 μm), thaw-mounted onto indium tin oxide (ITO) -coated glass slides, and sublimed with 2,5-dihydroxybenzxoic acid (DHB) matrix...
August 17, 2017: Alcohol
Vincent Offermanns, Ole Z Andersen, Gregor Riede, Michael Sillassen, Christian S Jeppesen, Klaus P Almtoft, Heribert Talasz, Caroline Öhman-Magi, Bernd Lethaus, Rene Tolba, Frank Kloss, Morten Foss
Numerous in vivo, in vitro and clinical studies report on beneficial effects of strontium with respect to increased bone growth. Based on this knowledge the aim of this study was to evaluate early and late osseointegration stages of functionalized titanium implants showing sustained release of strontium (Sr) and further investigate its potential systemic effect. Strontium functionalized (Ti-Sr-O) and Grade 4 (Control) titanium implants were inserted in the femoral condyle of New Zealand White rabbits. The Ti-Sr-O coating was characterized using Scanning Electron Microscopy (SEM) and Energy Dispersive X-ray Spectrometry (EDX) for structure, coating thickness and chemical composition...
February 6, 2018: Acta Biomaterialia
Jing He, Wei Feng, Bao-Hong Zhao, Wei Zhang, Zeng Lin
PURPOSE: The aim of this study was to confirm the in vivo effect of surface-modified titanium (Ti) implants with zinc (Zn) prepared by a plasma electrolytic oxidation (PEO) method on the process of osseointegration. MATERIALS AND METHODS: Forty-five New Zealand white rabbits were used. Implants were divided into three groups due to different surface treatments (the PEO-Zn group, the PEO-calcium phosphorus [Ca/P] group, and the sandblasted [control] group) and were randomly inserted into rabbits' mandibles...
February 8, 2018: International Journal of Oral & Maxillofacial Implants
Rui He, Mingxian Liu, Yan Shen, Rong Liang, Wei Liu, Changren Zhou
Here, we reported a fast, low-cost, and effective fabrication method of large-area and rough halloysite nanotubes (HNTs) coatings by thermal spraying of HNTs ethanol dispersions. A uniform HNTs coating with high transparence is achieved with tailorable surface roughness and thickness. Compared with normal cells, the tumor cells can be captured effectively with high capture yield by the HNTs coatings (expect HeLa cells), which is attributed to the enhanced topographic interactions between HNTs coating and cancer cells...
April 1, 2018: Materials Science & Engineering. C, Materials for Biological Applications
Raihana Rosman, Bullo Saifullah, Sandra Maniam, Dena Dorniani, Mohd Zobir Hussein, Sharida Fakurazi
Lung cancer, breast cancer and colorectal cancer are the most prevalent fatal types of cancers globally. Gallic acid (3,4,5-trihydroxybenzoic acid) is a bioactive compound found in plants and foods, such as white tea, witch hazel and it has been reported to possess anticancer, antioxidant and anti-inflammatory properties. In this study we have redesigned our previously reported anticancer nanocomposite formulation with improved drug loading based on iron oxide magnetite nanoparticles coated with polyethylene glycol and loaded with anticancer drug gallic acid (Fe₃O₄-PEG-GA)...
February 2, 2018: Nanomaterials
Luping Gu, Che Pan, Yujie Su, Ruojie Zhang, Hang Xiao, David Julian McClements, Yan-Jun Yang
Previously, it was shown that catechin-egg white protein (CT-EWP) conjugates were effective antioxidant emulsifiers that could form and stabilize emulsions, and also inhibit the degradation of encapsulated carotenoids. The objective of the current study was to evaluate the impact of conjugation on the in vitro bioavailability, cellular antioxidant activity, and cytotoxicity of β-carotene-loaded emulsions. Lipid droplets coated with EWP or with CT-EWP conjugates exhibited quite similar behavior when they were passed through a simulated gastrointestinal tract...
January 31, 2018: Journal of Agricultural and Food Chemistry
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