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https://www.readbyqxmd.com/read/28431096/a-new-rapid-resazurin-based-microdilution-assay-for-antimicrobial-susceptibility-testing-of-neisseria-gonorrhoeae
#1
Sunniva Foerster, Valentino Desilvestro, Lucy J Hathaway, Christian L Althaus, Magnus Unemo
Objectives: Rapid, cost-effective and objective methods for antimicrobial susceptibility testing of Neisseria gonorrhoeae would greatly enhance surveillance of antimicrobial resistance. Etest, disc diffusion and agar dilution methods are subjective, mostly laborious for large-scale testing and take ∼24 h. We aimed to develop a rapid broth microdilution assay using resazurin (blue), which is converted into resorufin (pink fluorescence) in the presence of viable bacteria. Methods: The resazurin-based broth microdilution assay was established using 132 N...
April 19, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28429394/immediate-implant-placement-and-restoration-in-the-anterior-maxilla-tissue-dimensional-changes-after-2-5-year-follow-up
#2
Himanshu Arora, Nabil Khzam, David Roberts, William L Bruce, Saso Ivanovski
BACKGROUND: Immediate implant placement followed by an immediate restoration has proven to be a viable technique in the anterior maxillary region. PURPOSE: This prospective study evaluated the mid-long term (2-5 years) tissue changes around immediately placed and restored implants in the anterior maxilla using flapless surgery and simultaneous hard tissue augmentation. MATERIALS AND METHODS: Thirty AstraTech implants were immediately placed in 30 patients, followed by the delivery of an immediate provisional restoration on the same day...
April 21, 2017: Clinical Implant Dentistry and related Research
https://www.readbyqxmd.com/read/28427662/ultrasonic-assisted-synthesis-of-a-tetrazine-functionalized-mof-and-its-application-in-colorimetric-detection-of-phenylhydrazine
#3
Sayed Ali Akbar Razavi, Mohammad Yaser Masoomi, Ali Morsali
TMU-34(-2H), [Zn(OBA)(DPT)0.5].DMF, has been sonochemically synthesized by applying H2OBA, (4,4'-oxybis(benzoic acid)), as the dicarboxylate linker, and DPT, (3,6-di(pyridin-4-yl)-1,2,4,5-tetrazine), as pillar spacer. Sonication time, concentration of initial reagents, sonication power and molar ratio of pyridine as modulator has been optimized to synthesize nano powder of TMU-34(-2H) including uniform plate morphology. Nano TMU-34(-2H), can detect phenylhydrazine (PH) by color changing from pink to deep purple...
July 2017: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/28426039/controlled-synthesis-of-lanthanide-doped-gd2o2s-nanocrystals-with-novel-excitation-dependent-multicolor-emissions
#4
Lei Lei, Shengjun Zhang, Han Xia, Ying Tian, Junjie Zhang, Shiqing Xu
Developing multicolor-emitting materials has significant value in many research fields such as displays, bioimaging, and information storage. The widely adopted strategies to realize multicolor emission are tuning the material composition, phase, and size. Herein, the emission color was continuously controlled from yellow to pink by simply changing the excitation wavelength from 254 nm to 365 nm for Tb(3+)/Eu(3+) co-doped Gd2O2S NCs. The Gd2O2S NCs with different morphologies, including nanoplate with various sizes and flower-like, were successfully prepared by seed-mediated, Na(+)/Y(3+) co-doped, and S concentration-tuned methods...
April 20, 2017: Nanoscale
https://www.readbyqxmd.com/read/28422991/mortality-is-associated-with-inflammation-anemia-specific-diseases-and-treatments-and-molecular-markers
#5
Mark Moeller, Christiane Pink, Nicole Endlich, Karlhans Endlich, Hans-Jörgen Grabe, Henry Völzke, Marcus Dörr, Matthias Nauck, Markus M Lerch, Rüdiger Köhling, Birte Holtfreter, Thomas Kocher, Georg Fuellen
Lifespan is a complex trait, and longitudinal data for humans are naturally scarce. We report the results of Cox regression and Pearson correlation analyses using data of the Study of Health in Pomerania (SHIP), with mortality data of 1518 participants (113 of which died), over a time span of more than 10 years. We found that in the Cox regression model based on the Bayesian information criterion, apart from chronological age of the participant, six baseline variables were considerably associated with higher mortality rates: smoking, mean attachment loss (i...
2017: PloS One
https://www.readbyqxmd.com/read/28422411/optical-properties-of-eu-2-eu-3-mixed-valence-phosphor-ca2-sio2-f2-eu-2-eu-3
#6
Mubiao Xie, Guoxian Zhu, Rongkai Pan, Wei Xie
The Eu(2+) /Eu(3+) mixed valence phosphor Ca2 SiO2 F2 :Eu(2+) /Eu(3+) was prepared using a solid-state reaction synthesis method in a CO atmosphere, and the optical properties were investigated. The spectroscopic properties revealed that Ca(2+) ions were occupied by both Eu(2+) and Eu(3+) ions in Ca2 SiO2 F2 , and both ions were able to generate their characteristic emissions. A broad 5d → 4f Eu(2+) band at ~470 nm and narrow 4f → 4f Eu(3+) peaks upon excitation with n-UV light were observed. The ratio between Eu(2+) and Eu(3+) emissions changed regularly, and the relative intensity of the red component from Eu(3+) became systematically stronger with increasing overall Eu content...
April 19, 2017: Luminescence: the Journal of Biological and Chemical Luminescence
https://www.readbyqxmd.com/read/28421977/-a-woman-with-pink-urine-and-a-pink-skin
#7
J A Versteeg, G A M van der Nat
A 48-year-old woman with fire-related inhalation injury had pink urine and a pink skin. This was caused by hydroxocobalamin, which was used to treat cyanide poisoning.
2017: Nederlands Tijdschrift Voor Geneeskunde
https://www.readbyqxmd.com/read/28421322/a-colorimetric-and-fluorescent-probe-based-on-michael-acceptor-type-diketopyrrolopyrrole-for-cyanide-detection
#8
Lingyun Wang, Shaochun Zhou, Derong Cao
A new probe 1 was synthesized by incorporating an α,β-unsaturated ketone to a diketopyrrolopyrrole fluorophore. The probe exhibited a selective and sensitive response to cyanide against other anions. Addition of CN(-) aqueous solution to 1 resulted in a rapid color change from pink to light yellow together with a blue shift from 518 to 421 nm, while other anions did not induce any significant color change. Furthermore, the Michael addition of cyanide to 1 elicited 98% fluorescence quenching at 608 nm, which constituted the fluorescence signature for cyanide detection...
April 18, 2017: Journal of Fluorescence
https://www.readbyqxmd.com/read/28417190/larkinella-harenae-sp-nov-isolated-from-korean-beach-soil
#9
Su-Jin Park, Jae-Jin Lee, Seung-Yeol Lee, Dae Sung Lee, Myung Kyum Kim, Leonid N Ten, Hee-Young Jung
A Gram-negative, short rod-shaped, gliding motile, and pale pink-pigmented bacterial strain, designated 15J9-9(T), was isolated from the soil of Iho Tewoo Beach, Jeju Island, Korea, and characterized taxonomically using a polyphasic approach. Comparative 16S rRNA gene sequence analysis showed that strain 15J9-9(T) belonged to the family Cytophagaceae and was related to Larkinella bovis M2T2B15(T) (96.5% similarity), Larkinella arboricola Z0532(T) (95.3% similarity), and Larkinella insperata LMG 22510(T) (95...
April 17, 2017: Current Microbiology
https://www.readbyqxmd.com/read/28417036/verrucous-hyperplasia-case-report-and-differential-diagnosis
#10
Sonal Grover, Mihir Jha, Bhushan Sharma, Shekhar Kapoor, Kumud Mittal, Nithin K Parakkat, Anil B Shivappa, Ravleen Kaur
Verrucous hyperplasia (VH) is a rare exophytic oral mucosal lesion which can transform into verrucous carcinoma (VC), its malignant but clinically similar counterpart. These entities can be distinguished by the lack of invasive growth in VH cases; as such, it is essential to include a margin with adequate depth when performing a biopsy of the epithelium of the lesion. We report an 80-year-old male patient who presented to the Bapuji Dental College & Hospital, Davangere, Karanataka, India, in 2011 with a warty whitish-pink growth on the inside of his cheek...
February 2017: Sultan Qaboos University Medical Journal
https://www.readbyqxmd.com/read/28414803/new-metric-for-optimizing-continuous-loop-averaging-deconvolution-clad-sequences-under-the-1-f-noise-model
#11
Xian Peng, Han Yuan, Wufan Chen, Tao Wang, Lei Ding
Continuous loop averaging deconvolution (CLAD) is one of the proven methods for recovering transient auditory evoked potentials (AEPs) in rapid stimulation paradigms, which requires an elaborated stimulus sequence design to attenuate impacts from noise in data. The present study aimed to develop a new metric in gauging a CLAD sequence in terms of noise gain factor (NGF), which has been proposed previously but with less effectiveness in the presence of pink (1/f) noise. We derived the new metric by explicitly introducing the 1/f model into the proposed time-continuous sequence...
2017: PloS One
https://www.readbyqxmd.com/read/28408012/comparing-generic-and-condition-specific-preference-based-measures-in-epilepsy-eq-5d-3l-and-newqol-6d
#12
Brendan Mulhern, Joshua Pink, Donna Rowen, Simon Borghs, Thomas Butt, Dyfrig Hughes, Antony Marson, John Brazier
BACKGROUND: There is debate about the psychometric characteristics of the three-level EuroQol five-dimensional questionnaire (EQ-5D-3L) for use in epilepsy. In response to the concerns, an epilepsy-specific preference-based measure (NEWQOL-6D) was developed. The psychometric characteristics of the NEWQOL-6D, however, have not been assessed. OBJECTIVES: To investigate the validity and responsiveness of the EQ-5D-3L and the Quality of Life in Newly Diagnosed Epilepsy Instrument-six dimensions (NEWQOL-6D) for use in the assessment of treatments for newly diagnosed focal epilepsy...
April 2017: Value in Health: the Journal of the International Society for Pharmacoeconomics and Outcomes Research
https://www.readbyqxmd.com/read/28406332/development-of-an-eye-tracking-method-to-assess-mental-set-switching-in-people-with-aphasia
#13
Sabine Heuer, Melissa Lu Pinke
BACKGROUND: Deficits in cognitive flexibility contribute to impaired functional communication in people with aphasia. Understanding the relationship between functional communication and cognitive flexibility in people with neurologic communication disorders is important. However, traditional methods to assess mental set switching pose significant linguistic, cognitive and motoric response confounds. Eye-tracking methods have great potential to address these challenges. AIMS: The goal of this study was to develop and validate an eye-tracking method to index mental set switching in individuals without neurological impairment based upon performance on a nonlinguistic switching task...
April 13, 2017: Brain Injury: [BI]
https://www.readbyqxmd.com/read/28402234/apple-snail-perivitellin-precursor-properties-help-explain-predators-feeding-behavior
#14
María Pilar Cadierno, Marcos Sebastián Dreon, Horacio Heras
In contrast with vitellogenin maturation, it is unknown whether gastropod perivitellin precursors are subject to large structural changes. The gastropod reproductive tract includes an accessory organ, the albumen gland (AG), that produces and secretes perivitelline fluid. In the apple snail Pomacea canaliculata, the large, reddish-pink AG provides eggs with perivitellins that are defensive against predators. Although the AG makes a considerable contribution to apple snail biomass, field observations indicate that it is rejected by avian and mammalian predators, although the underlying reason remains unknown...
July 2017: Physiological and Biochemical Zoology: PBZ
https://www.readbyqxmd.com/read/28401305/evaluation-of-specific-neural-marker-gap-43-and-th-combined-with-masson-trichrome-staining-for-forensic-autopsy-cases-with-old-myocardial-infarction
#15
Tian-Shui Yu, Xu Wang, Hai-Dong Zhang, Ru-Feng Bai, Rui Zhao, Da-Wei Guan
It has been a puzzling forensic task to determine the cause of death as a result of old myocardial infarction (OMI) in the absence of recognizable acute myocardial infarction. Recent studies indicated that the heterogeneous cardiac nerve sprouting and sympathetic hyperinnervation at border zones of the infarcted site played important roles in sudden cardiac death (SCD). So, the present study explored the value of growth associated protein-43 (GAP-43) and tyrosine hydroxylase (TH) as objective and specific neural biomarkers combined with Masson-trichrome staining for forensic autopsy cases...
April 11, 2017: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/28397803/tomatidine-enhances-lifespan-and-healthspan-in-c-elegans-through-mitophagy-induction-via-the-skn-1-nrf2-pathway
#16
Evandro F Fang, Tyler B Waltz, Henok Kassahun, Qiping Lu, Jesse S Kerr, Marya Morevati, Elayne M Fivenson, Bradley N Wollman, Krisztina Marosi, Mark A Wilson, Wendy B Iser, D Mark Eckley, Yongqing Zhang, Elin Lehrmann, Ilya G Goldberg, Morten Scheibye-Knudsen, Mark P Mattson, Hilde Nilsen, Vilhelm A Bohr, Kevin G Becker
Aging is a major international concern that brings formidable socioeconomic and healthcare challenges. Small molecules capable of improving the health of older individuals are being explored. Small molecules that enhance cellular stress resistance are a promising avenue to alleviate declines seen in human aging. Tomatidine, a natural compound abundant in unripe tomatoes, inhibits age-related skeletal muscle atrophy in mice. Here we show that tomatidine extends lifespan and healthspan in C. elegans, an animal model of aging which shares many major longevity pathways with mammals...
April 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28394803/hpv-negative-gastric-type-adenocarcinoma-in-situ-of-the-cervix-a-spectrum-of-rare-lesions-exhibiting-gastric-and-intestinal-differentiation
#17
Karen L Talia, Colin J R Stewart, Brooke E Howitt, Marisa R Nucci, W Glenn McCluggage
In recent years, a number of benign and malignant cervical glandular lesions exhibiting gastric differentiation have been described but premalignant gastric-type lesions have not been well characterized. We report a series of 9 cases of a rare form of cervical adenocarcinoma in situ (AIS) distinguished by gastric and sometimes intestinal differentiation and lack of association with human papillomavirus (HPV) infection. The lesions occurred in women aged 25 to 73 years (mean age 51 y). All cases were located at (or just proximal to) the cervical transformation zone and there was extension to the lower uterine segment in 3 cases, 2 of which also involved the endometrium...
April 7, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28393304/lanthanum-chloride-precipitation-based-toxicoproteomic-analysis-of-3-monochloropropane-1-2-diol-toxicity-in-rat-kidney-reveals-involvement-of-extracellular-signal-regulated-kinase-2
#18
Axel Oberemm, Monique Braun, Stefanie Sawada, Mario Pink, Falko Frenzel, Christel Rozycki, Christine Meckert, Elke Zabinsky, Albert Braeuning, Alfonso Lampen
The heat-induced food contaminant 3-monochloropropane-1,2-diol (3-MCPD) and its fatty acid esters exert nephrotoxicity in rodents. Previous studies including a non-targeted toxicoproteomics approach using samples from a 28-day oral toxicity study in rats with 10 mg/kg body weight (b.w.) of 3-MCPD, an equimolar dose of 53 mg/kg b.w. 3-MCPD dipalmitate and a lower dose of 13.3 mg/kg b.w. of 3-MCPD dipalmitate, revealed substance-induced alterations in metabolic pathways, especially for glycolysis and energy metabolism...
April 9, 2017: Archives of Toxicology
https://www.readbyqxmd.com/read/28392225/simple-low-cost-differentiation-of-candida-auris-from-candida-haemulonii-complex-using-chromagar-candida-medium-supplemented-with-pal-s-medium
#19
Anil Kumar, Arun Sachu, Karthika Mohan, Vivek Vinod, Kavitha Dinesh, Shamsul Karim
BACKGROUND: Candida auris is unique due to its multidrug resistance and misidentification as Candida haemulonii by commercial systems. Its correct identification is important to avoid inappropriate treatments. AIMS: To develop a cheap method for differentiating C. auris from isolates identified as C. haemulonii by VITEK2. METHODS: Fifteen C. auris isolates, six isolates each of C. haemulonii and Candida duobushaemulonii, and one isolate of Candida haemulonii var...
April 6, 2017: Revista Iberoamericana de Micología
https://www.readbyqxmd.com/read/28391306/unstable-linkage-of-molecular-markers-with-sex-determination-gene-in-pacific-salmon-oncorhynchus-spp
#20
Aleksandr V Podlesnykh, Vladimir A Brykov, Andrey D Kukhlevsky
In the present study, we tested the congruence between the sdY sex-specific marker and other commonly used male markers, located on the Y-chromosome, with the sex phenotypes in 5 species of Pacific salmon in Asian waters, including Chinook, chum, sockeye, masu, and pink salmon. We found that the localization of the sex-specific marker of both males and females of these species is not consistent with the phenotypic sex. Also, no linkage was found between noncoding markers and the sdY gene in the same species samples...
May 1, 2017: Journal of Heredity
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