Bachmohammad6152

Thiophenol (PhSH) is an important sulfhydryl compound in organic synthesis, but it is also a volatile environmental pollutant with high toxicity to organisms. Herein, we reported a novel near-infrared (NIR) probe (1) for turn-on fluorescence detection of PhSH. The probe was prepared by coupling 2,4-dinitrophenyl (DNP) to a dicyanoisophorone-based fluorophore (2). PhSH can specifically perform a nucleophilic aromatic substitution on probe 1 and result in the release of fluorophore 2, thus achieving a turn-on fluorescence response (λem = 693 nm). A dramatic color change from red (λabs = 525 nm) to blue (λabs = 668 nm) was also observed. This fluorescent assay displayed a large Stokes shift (∼133 nm) and a high sensitivity for PhSH, as well as a low detection limit (34 nM). Moreover, probe 1 was successfully applied to monitor PhSH in real water samples and image PhSH in living cells.Objective We investigated views towards the Internet in a sample of Italian healthcare specialists involved in epilepsy field, to identify factors associated with the attitude of being influenced by information found on the Internet. Methods This study was a self-administered survey conducted in a group of members of the Italian Chapter of the International League Against Epilepsy (ILAE) in January 2018. Results 184 questionnaires were analyzed. Cysteine Protease inhibitor 97.8 % of responders reported to seek online information on epilepsy. The Internet was most frequently searched to obtain new information (69.9 %) or to confirm a diagnostic or therapeutic decision (37.3 %). The influence of consulting the Internet on clinical practice was associated with registration to social network(s) (OR 2.94; 95 %CI 1.28-6.76; p = 0.011), higher frequency of Internet use (OR 3.66; 95 %CI 1.56-9.21; p = 0.006) and higher confidence in reliability of online information (OR 2.61; 95 %CI 1.09-6.26; p = 0.031). No association was found with age, sex, years in epilepsy practice or easiness to find online information. Conclusion Internet is frequently used among healthcare professionals involved in the epilepsy to obtain information about this disease. The attitude of being influenced by the Internet for diagnostic and/or therapeutic decisions in epilepsy is independent on age and years of experience in epilepsy, and probably reflects an individual approach towards the Web.X-ray photoemission electron microscopy, one of the most successful imaging tools at synchrotrons, is known to have limitations related to the application of external fields and to the short electron mean free path. In order to overcome such issues, we adapt an existing XPEEM instrument to simultaneously perform coherent x-ray scattering measurements in reflectivity mode, thus adding a complementary method to XPEEM. Photon-in photon-out x-ray scattering provides the sensitivity to buried interfaces as well as the possibility to work under external fields, which is challenging when using charged particles for imaging. XPEEM, in turn, greatly alleviates the difficulties associated with the reconstruction methods used in coherent diffraction imaging. The combination of the two methods is demonstrated for an artifical spin-ice lattice showing both chemical and magnetic contrast.The dielectric properties of the eye lens were studied for healthy and alloxane-induced diabetic rabbits in the frequency range from 500 Hz to 100 kHz electric field and temperatures from 25 to 50 °C. In the full temperature range, the average relative permittivity and dielectric loss values for a healthy lens are lower than those recorded for diabetic tissue. Dielectric relaxation of polar amino acids on the alpha-crystallin surface with a characteristic frequency of 7 kHz in the range of 25-50 °C for healthy and diabetic samples is accompanied by the activation energy of proton conductivity with an average values of 33 and 39 kJ mol-1, respectively. The permittivity decrement, which characterizes the size of the dielectric dispersion with a central relaxation time of 0.023 ms for a diabetic sample, is more than twice as high as for a healthy sample. Measurements on the rabbit eye lens were carried out at ambient temperature above and below the physiological range, since these conditions provide an appropriate pattern of dielectric behavior for the diagnosis of clinical dysfunction of the human lens.Accumulating studies implied that long noncoding RNAs (lncRNAs) act as essential factors in regulating diverse biological behaviors of cancers. Small nucleolar RNA host gene 11 (SNHG11) has been reported as for its oncogenic properties in several cancer types. However, it is unclear whether SNHG11 exerts functions in non-small cell lung cancer (NSCLC) remains unclear. The aim of this study was to inspect the role and regulatory mechanism of SNHG11 in NSCLC. The expression of SNHG11 in NSCLC cells was analyzed by qRT-PCR. Functional experiments were carried out to determine the effects of SNHG11 silence on the biological behaviors of NSCLC cells, including growth, migration and epithelial-mesenchymal transition. The inhibition of above functions was observed after SNHG11 was silenced. Subcellular fractionation and FISH assays were performed to detect the cellular distribution of SNHG11. Moreover, SNHG11 was found to be a sponge of miR-485-5p that could directly target to Basigin (BSG) mRNA. The interaction between SNHG11 and miR-485-5p as well as between miR-485-5p and BSG was proven by RNA pull down and luciferase reporter assays. Restoration assay confirmed the involvement of miR-485-5p and BSG in SNHG11-mediated NSCLC cellular functions. Conclusively, SNHG11 was overexpressed in NSCLC and functioned as a miR-485-5p sponge to up-regulate BSG.Background and objectives The nucleus is a complex and dynamic organelle enclosing the major part of the cell's genome. A growing body of evidence suggests that changes in the shape of this organelle can influence cell activities. The other way around, altered nuclear shape may be indicative of impaired cell function. Symmetry is an important aspect of nuclear shape not receiving the attention it merits. We address this problem by presenting a software tool allowing to quantify nuclear shape asymmetry in light microscopy images. Methods The software named nPAsym is written in Scala and implemented as a plugin to ImageJ making possible to use it in combination with other ImageJ tools. The plugin works with 8-bit images segmented into black nuclear masks and white background. It performs a number of operations allowing to analyze multiple objects within a single image, removing some segmentation artefacts, filtering out objects incomplete and below a specified size. The feature of interest is quantified using the notion of point asymmetry.