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https://www.readbyqxmd.com/read/29151458/comparison-of-efficacy-and-outcome-satisfaction-between-in-office-and-home-teeth-bleaching-in-chinese-patients
#1
Jie Nie, Fu-Cong Tian, Zu-Hua Wang, Adrian U Yap, Xiao-Yan Wang
This in vivo study aimed to evaluate the efficacy of in-office and home teeth bleaching in Asian patients. Moreover, the correlation between tooth color change and patient's outcome satisfaction was investigated. Overall, 40 Chinese patients were randomly divided into two groups and prescribed in-office (OB) or take-home bleaching (HB). The color of the maxillary central incisor and canine were recorded at baseline, immediately after first treatment, 1 week, and 3 months after treatment by using a spectrophotometer...
November 17, 2017: Journal of Oral Science
https://www.readbyqxmd.com/read/29150154/cutaneous-squamous-cell-carcinomas-scc-associated-with-cosmetic-skin-whitening-8-cases-reported-in-senegal
#2
F Ly, P Diousse, C Ndiaye, A Déme, B A Diatta, M T Ndiaye, M Diallo, A Diop, A D Kebe, F Fall, A Kane
BACKGROUND: The cosmetic use of bleaching products is common among women from sub-Saharan Africa. The most frequently used products are highly potent corticosteroids (clobetasol propionate) and hydroquinone. Herein, we report 8 cases of SCC in women using skin bleaching products for cosmetic purposes. Our aim is to describe the epidemiological, clinical and pathological aspects of the carcinomas observed during the course of skin lightening. METHODS: We conducted a descriptive multicentre study from August 2005 to January 2016 in three dermatology units in Senegal...
November 14, 2017: Annales de Dermatologie et de Vénéréologie
https://www.readbyqxmd.com/read/29149035/wearete-a-scalable-wearable-e-textile-triboelectric-energy-harvesting-system-for-human-motion-scavenging
#3
Xian Li, Ye Sun
In this paper, we report the design, experimental validation and application of a scalable, wearable e-textile triboelectric energy harvesting (WearETE) system for scavenging energy from activities of daily living. The WearETE system features ultra-low-cost material and manufacturing methods, high accessibility, and high feasibility for powering wearable sensors and electronics. The foam and e-textile are used as the two active tribomaterials for energy harvester design with the consideration of flexibility and wearability...
November 17, 2017: Sensors
https://www.readbyqxmd.com/read/29141061/a-randomized-investigator-blinded-comparison-of-two-topical-regimens-in-fitzpatrick-skin-types-iii-vi-with-moderate-to-severe-facial-hyperpigmentation
#4
Monique J Vanaman Wilson, Isabela T Jones, Joanna Bolton, Lisa Larsen, Douglas C Wu, Mitchel P Goldman
<p>Purpose: Though hydroquinone (HQ) remains the gold standard for treatment of hyperpigmentation, concerns about its safety have prompted the development of HQ-free topical skin lightening systems. OBJECTIVE: To compare the efficacy and tolerability of a new HQ-free system and a popular HQ-based system for the improvement of facial hyperpigmentation and photoaging in darker skin types. METHODS: This investigator-blinded trial randomized 30 subjects of Fitzpatrick skin types III to VI with moderate to severe hyperpigmentation to a new 7-product HQ-free system or a 7-product HQ-based system for 12 weeks...
November 1, 2017: Journal of Drugs in Dermatology: JDD
https://www.readbyqxmd.com/read/29115012/3-o-glyceryl-2-o-hexyl-ascorbate-suppresses-melanogenesis-by-interfering-with-intracellular-melanosome-transport-and-suppressing-tyrosinase-protein-synthesis
#5
Norihisa Taira, Yushi Katsuyama, Masato Yoshioka, Yuri Okano, Hitoshi Masaki
BACKGROUND: Ascorbic acid (AsA) has multifunctional benefits on skin beauty, such as the reduction in oxidative stress and the induction of collagen production. Among them, the prevention and improvement of skin pigmentation by AsA is a most important benefit for people. However, it is well known that AsA not only is quite unstable in formulations but it also has a low capability of skin penetration due to its hydrophilic property. In addition, existing water-soluble AsA derivatives that were developed to improve its stability also have low skin penetration...
November 7, 2017: Journal of Cosmetic Dermatology
https://www.readbyqxmd.com/read/29112643/assessment-of-fetal-congenital-heart-diseases-by-4-dimensional-ultrasound-using-spatiotemporal-image-correlation-pictorial-review
#6
Edward Araujo Júnior, Gabriele Tonni, Nathalie Jeanne Bravo-Valenzuela, Fabricio Da Silva Costa, Simon Meagher
The aim of this pictorial review is to describe the technical advances achieved through the application of 4-dimensional (4D) ultrasound using spatiotemporal image correlation (STIC) over conventional 2-dimensional ultrasound in the prenatal detection of congenital heart disease (CHD). Spatiotemporal image correlation is a volume imaging technique that simplifies fetal heart studies while providing more diagnostic information than is typically available from traditional 2-dimensional studies. Four-dimensional software allows the study of cardiac anatomy and function during a single cardiac cycle and has greatly contributed to diagnostic enhancement of CHD...
November 6, 2017: Ultrasound Quarterly
https://www.readbyqxmd.com/read/29101318/evolutionary-genetics-of-immunological-supertypes-reveals-two-faces-of-the-red-queen
#7
Jackie Lighten, Alexander S T Papadopulos, Ryan S Mohammed, Ben J Ward, Ian G Paterson, Lyndsey Baillie, Ian R Bradbury, Andrew P Hendry, Paul Bentzen, Cock van Oosterhout
Red Queen host-parasite co-evolution can drive adaptations of immune genes by positive selection that erodes genetic variation (Red Queen arms race) or results in a balanced polymorphism (Red Queen dynamics) and long-term preservation of genetic variation (trans-species polymorphism). These two Red Queen processes are opposite extremes of the co-evolutionary spectrum. Here we show that both Red Queen processes can operate simultaneously by analysing the major histocompatibility complex (MHC) in guppies (Poecilia reticulata and P...
November 3, 2017: Nature Communications
https://www.readbyqxmd.com/read/29096636/sodium-butyrate-promotes-apoptosis-in-breast-cancer-cells-through-reactive-oxygen-species-ros-formation-and-mitochondrial-impairment
#8
Vahid Salimi, Zahra Shahsavari, Banafsheh Safizadeh, Ameinh Hosseini, Narges Khademian, Masoumeh Tavakoli-Yaraki
BACKGROUND: Sodium butyrate (NaBu) is a short-chain fatty acid which serves as a histon deacetylase inhibitor and has received considerable interest as a possible regulator of cancer cell death. The regulatory effect of NaBu on cancer cell growth or death has yet to be illustrated in many cancers including breast cancer. This study is aimed to elucidate the possible effect of NaBu on regulation of breast cancer growth and apoptosis. METHODS: The cytotoxic effect of NaBu on the growth of breast cancer cells (MCF-7 and MDA-MB-468) and normal breast cells (MCF-10A) was determined using MTT assay...
November 2, 2017: Lipids in Health and Disease
https://www.readbyqxmd.com/read/29083492/influence-of-high-pressure-processing-at-low-temperature-and-nisin-on-listeria-innocua-survival-and-sensory-preference-of-dry-cured-cold-smoked-salmon
#9
Noelle K Lebow, Lisa D DesRocher, Frank L Younce, Mei-Jun Zhu, Carolyn F Ross, Denise M Smith
Cold-smoked salmon (CSS) production lacks a validated kill step for Listeria monocytogenes. Although Listeria spp. are reduced by nisin or high-pressure processing (HPP), CSS muscle discoloration is often observed after HPP. Effects of nisin and low-temperature HPP on L. innocua survival (nonpathogenic surrogate for L. monocytogenes), spoilage organism growth, color, and sensory preference and peelability of CSS were studied. Cold-smoked sockeye salmon (Oncorhynchus nerka) fillets ± nisin (10 μg/g) were inoculated with a 3-strain L...
October 30, 2017: Journal of Food Science
https://www.readbyqxmd.com/read/29075993/grid-mapping-a-novel-method-of-signal-quality-evaluation-on-a-single-lead-electrocardiogram
#10
Yanjun Li, Xiaoying Tang
Diagnosis of long-term electrocardiogram (ECG) calls for automatic and accurate methods of ECG signal quality estimation, not only to lighten the burden of the doctors but also to avoid misdiagnoses. In this paper, a novel waveform-based method of phase-space reconstruction for signal quality estimation on a single lead ECG was proposed by projecting the amplitude of the ECG and its first order difference into grid cells. The waveform of a single lead ECG was divided into non-overlapping episodes (Ts = 10, 20, 30 s), and the number of grids in both the width and the height of each map are in the range [20, 100] (NX = NY = 20, 30, 40, … 90, 100)...
October 26, 2017: Australasian Physical & Engineering Sciences in Medicine
https://www.readbyqxmd.com/read/29071958/-effect-of-electroacupuncture-on-cerebro-cortex-caspase-3-expression-and-blood-lipid-levels-in-hyperlipemia-rats-with-cerebral-ischemia
#11
Zhuo-Yu Wang, Jia-Jia Ma, Han-Yu Guan, Yao Tian, Xiu-Jun Ren, Hui-Fang Ma
OBJECTIVE: To observe the effect of electroacupuncture (EA) stimulation of "Fenglong" (ST 40), "Sanyinjiao" (SP 6) plus manual acupuncture (MA) stimulation of "Shuigou" (GV 26) and "Baihui" (GV 20) on Caspase-3 protein expression in the cerebral cortex of rats with hyperlipemia and cerebral ischemia(HL-CI),so as to reveal its mechanisms underlying improvement of HL-CI. METHODS: Forty-five rats were randomly divided into normal control,sham operation,model,EA group I(EA+MA was given for 14 days, i...
April 25, 2017: Zhen Ci Yan Jiu, Acupuncture Research
https://www.readbyqxmd.com/read/29071890/-effect-of-electroacupuncture-intervention-at-different-time-points-on-locomotor-function-and-apoptosis-in-rats-with-acute-spinal-cord-injury
#12
Xiao-Ning Li, Lei Wu, Lei Chi, Xue-Wei Qi, Ji-Lin Mei, Nuo Li
OBJECTIVE: To observe the effect of electroacupuncture (EA) intervention at different treatment time-points on locomotor function and neuronal apoptosis in rats with acute spinal cord injury (ASCI), so as to explore its mechanism under-lying improvement of ASCI. METHODS: Seventy-two female Wistar rats were randomly divided into sham operation, ASCI model and EA groups which were further divided into 4 time-points:1, 3, 7 and 14 d (n=6 at each). The ASCI model was established by weight-drop striking the exposed spinal cord (T10) using a NYU impactor device...
December 25, 2016: Zhen Ci Yan Jiu, Acupuncture Research
https://www.readbyqxmd.com/read/29062096/functional-role-of-cyclin-dependent-kinase-5-in-the-regulation-of-melanogenesis-and-epidermal-structure
#13
Changsheng Dong, Shanshan Yang, Ruiwen Fan, Kaiyuan Ji, Junzhen Zhang, Xuexian Liu, Shuaipeng Hu, Jianshan Xie, Yu Liu, Wenjun Gao, Haidong Wang, Jianbo Yao, George W Smith, Muren Herrid
The mammalian integumentary system plays important roles in body homeostasis, and dysfunction of melanogenesis or epidermal development may lead to a variety of skin diseases, including melanoma. Skin pigmentation in humans and coat color in fleece-producing animals are regulated by many genes. Among them, microphthalmia-associated transcription factor (MITF) and paired-box 3 (PAX3) are at the top of the cascade and regulate activities of many important melanogenic enzymes. Here, we report for the first time that cyclin-dependent kinase 5 (Cdk5) is an essential regulator of MITF and PAX3...
October 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29040915/a-novel-three-dimensional-carbonized-pani1600-cnts-network-for-enhanced-enzymatic-biofuel-cell
#14
Zepeng Kang, Kailong Jiao, Jin Cheng, Ruiyun Peng, Shuqiang Jiao, Zongqian Hu
A novel three-dimensional (3D) carbon composite of PANI1600@CNTs with rhizobium-like structure is prepared by in-situ polymerization of aniline monomers around and along the functionalized carbon nanotubes (CNTs) and then carbonized at 1600°C for enzymatic biofuel cells (EBFCs). The SEM and TEM images clearly show that the carbonized PANI grew seamlessly on the surface of CNTs and presented the rhizobium-like structure. The carbonized PANI acts like conductive "glue" and connects the adjacent tubes together, which can assemble the CNTs into a 3D network...
October 7, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28991914/topiramate-modulates-trigeminal-pain-processing-in-thalamo-cortical-networks-in-humans-after-single-dose-administration
#15
RANDOMIZED CONTROLLED TRIAL
Julia M Hebestreit, Arne May
Migraine is the sixth most common cause of disability in the world. Preventive migraine treatment is used to reduce frequency, severity and duration of attacks and therefore lightens the burden on the patients' quality of life and reduces disability. Topiramate is one of the preventive migraine treatments of proven efficacy. The mechanism of action underlying the preventive effect of topiramate in migraine remains largely unknown. Using functional magnetic resonance imaging (fMRI) we examined the central effects of a single dose of topiramate (100mg) on trigeminal pain in humans, compared to placebo (mannitol)...
2017: PloS One
https://www.readbyqxmd.com/read/28971071/how-do-the-nurses-cope-with-job-stress-a-study-with-grounded-theory-approach
#16
Rasool Eslami Akbar, Nasrin Elahi, Eesa Mohammadi, Masoud Fallahi Khoshknab
Introduction: Due to the adverse effects of job stress on health of nurses and the importance of coping process of nurses in management of job stress, the present study was carried out with the aim of exploring the experiences of the nurses in order to reveal the original coping process of the nurses in the case of encountering occupational stress. Methods: This qualitative study was conducted with grounded theory approach. Research participants were 15 clinical nurses and four directors of nursing. Sampling method of study were purposive and theoretical sampling...
September 2017: Journal of Caring Sciences
https://www.readbyqxmd.com/read/28930792/laser-treatment-of-professional-tattoos-with-a-1064-532-nm-dual-wavelength-picosecond-laser
#17
Arielle N B Kauvar, Terrence C Keaney, Tina Alster
BACKGROUND: Picosecond-domain laser pulses improve the photomechanical disruption of tattoos. OBJECTIVE: This study evaluates the efficacy and safety of a novel, dual-wavelength, 1,064/532-nm, picosecond-domain laser for tattoo clearance. MATERIALS AND METHODS: This was a prospective, self-controlled, clinical study of 34 subjects with 39 tattoos treated at 2 sites with an interval of 4.8 ± 1.6 weeks and up to 10 treatments (mean, 7.5). Blinded evaluation and investigator assessment of serial digital images was performed to evaluate treatment efficacy in the 36 tattoos that received at least 3 treatments...
September 19, 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/28923340/seasonal-variation-spatial-distribution-and-source-apportionment-for-polycyclic-aromatic-hydrocarbons-pahs-at-nineteen-communities-in-xi-an-china-the-effects-of-suburban-scattered-emissions-in-winter
#18
Jingzhi Wang, Junji Cao, Zhibao Dong, Benjamin Guinot, Meiling Gao, Rujin Huang, Yongming Han, Yu Huang, Steven Sai Hang Ho, Zhenxing Shen
Seasonal variation and spatial distribution of PM2.5 bound polycyclic aromatic hydrocarbons (PAHs) were investigated at urban residential, commercial area, university, suburban region, and industry in Xi'an, during summer and winter time at 2013. Much higher levels of total PAHs were obtained in winter. Spatial distributions by kriging interpolations principle showed that relative high PAHs were detected in western Xi'an in both summer and winter, with decreasing trends in winter from the old city wall to the 2(nd)-3rd ring road except for the suburban region and industry...
December 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28904977/misuse-of-topical-corticosteroids-for-cosmetic-purpose-in-antananarivo-madagascar
#19
F A Sendrasoa, I M Ranaivo, M Andrianarison, O Raharolahy, N H Razanakoto, L S Ramarozatovo, F Rapelanoro Rabenja
This cross-sectional study was conducted in Antananarivo, Madagascar, from June to September 2012. We aim to evaluate the misuse of TC on the face for cosmetic purpose and the adverse effects due to its application. A questionnaire-based analysis was done among females who use topical corticosteroids on the face for cosmetic purpose. Of the 770 women questioned, 384 (49,8%) used topical corticosteroids for cosmetic purpose whose mean age was 38 years (range 16-73 years). Two hundred and sixty-one females (68%) used TC combined with handcrafted cosmetics, and 123 (32%) used TC alone...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28898519/near-infrared-free-radical-and-free-radical-promoted-cationic-photopolymerizations-by-in-source-lighting-using-upconverting-glass
#20
Azra Kocaarslan, Sevcan Tabanli, Gonul Eryurek, Yusuf Yagci
A method is presented for the initiation of free-radical and free-radical-promoted cationic photopolymerizations by in-source lighting in the near-infrared (NIR) region using upconverting glass (UCG). This approach utilizes laser irradiation of UCG at 975 nm in the presence of fluorescein (FL) and pentamethyldiethylene triamine (PMDETA). FL excited by light emitted from the UCG undergoes electron-transfer reactions with PMDETA to form free radicals capable of initiating polymerization of methyl methacrylate...
September 12, 2017: Angewandte Chemie
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