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Pian Wu, Ruixue Huang, Guiyin Li, Yayuan He, Cuimei Chen, Wen Xiao, Ping Ding
This study prepared an innovative 3-mercaptopropionic acid modified ZnSe/ZnS core/shell quantum dots (MPA-ZnSe/ZnS QDs), and established a rapid fluorescence method to detect the E. coli cells count by using MPA-ZnSe/ZnS QDs as fluorescence probe. The formulation variables and process were optimized using the response surface methodology (RSM). Fluorescence microscopy was used to obtain fluorescence microscope images of MPA-ZnSe/ZnS QDs that bind to bacteria. The fluorescence peak intensity increases with increasing cells count in the range of 101-108 CFU/mL...
May 1, 2018: Journal of Nanoscience and Nanotechnology
He-Lin Xu, Fu-Rong Tian, Jian Xiao, Pian-Pian Chen, Jie Xu, Zi-Liang Fan, Jing-Jing Yang, Cui-Tao Lu, Ying-Zheng Zhao
Introduction: The short lifetime of protein-based therapies has largely limited their therapeutic efficacy in injured nervous post-spinal cord injury (post-SCI). Methods: In this study, an affinity-based hydrogel delivery system provided sustained-release of proteins, thereby extending the efficacy of such therapies. The affinity-based hydrogel was constructed using a novel polymer, heparin-poloxamer (HP), as a temperature-sensitive bulk matrix and decellular spinal cord extracellular matrix (dscECM) as an affinity depot of drug...
2018: International Journal of Nanomedicine
He-Lin Xu, De-Li ZhuGe, Pian-Pian Chen, Meng-Qi Tong, Meng-Ting Lin, Xue Jiang, Ya-Wen Zheng, Bin Chen, Xiao-Kun Li, Ying-Zheng Zhao
Silk was easily dyed in traditional textile industry because of its strong affinity to many colorants. Herein, the biocompatible silk fibroin was firstly extracted from Bombyx mori silkworm cocoons. And SF nanoparticles (SFNPs) were prepared for dyeing indocyanine green (ICG) and construct a therapeutic nano-platform (ICG-SFNPs) for photo-thermal therapy of glioblastoma. ICG was easily encapsulated into SFNPs with a very high encapsulation efficiency reaching to 97.7 ± 1.1%. ICG-SFNPs exhibited a spherical morphology with a mean particle size of 209...
November 2018: Drug Delivery
Zhong Chen, Pian Rao, Xiaoyu Yang, Xiaoxing Su, Tianyun Zhao, Kai Gao, Xiong Yang, Xinmin An
To obtain a comprehensive overview of the dynamic transcriptome during male floral bud development in Populus tomentosa, high-throughput RNA-seq was conducted during eight flowering-related stages. Among the 109,212 de novo assembled unigenes, 6,959 were differentially expressed during the eight stages. The overrepresented classed of genes identified by Gene Ontology (GO) enrichment included 'response to environmental stimuli' and 'plant-type spore development'. One-third of the differentially expressed genes were transcription factors (TFs)...
January 15, 2018: Scientific Reports
Qi Pian, Ruoyang Yao, Nattawut Sinsuebphon, Xavier Intes
Spectrally resolved fluorescence lifetime imaging1-3 and spatial multiplexing1,4,5 have offered information content and collection-efficiency boosts in microscopy, but efficient implementations for macroscopic applications are still lacking. An imaging platform based on time-resolved structured light and hyperspectral single-pixel detection has been developed to perform quantitative macroscopic fluorescence lifetime imaging (MFLI) over a large field of view (FOV) and multiple spectral bands simultaneously. The system makes use of three digital micromirror device (DMD)-based spatial light modulators (SLMs) to generate spatial optical bases and reconstruct N by N images over 16 spectral channels with a time-resolved capability (~40 ps temporal resolution) using fewer than N2 optical measurements...
2017: Nature Photonics
Yi-di Guan, Shi-Long Jiang, Pian Yu, Mei Wen, Yi Zhang, Song-Shu Xiao, Xiao-Jun Xu, Yan Cheng
Recent evidence shows that raddeanin A (RA), an oleanane-type triterpenoid saponin extracted from Anemone raddeana Regel, exerts remarkable cytotoxicity against cancer cells in vitro and in vivo. In addition, RA has also been found to activate autophagy in human gastric cancer cells. In this study, we investigated the molecular mechanisms underlying RA-induced autophagy as well as the relationship between RA-induced autophagy and its cytotoxicity in human breast cancer cells in vitro. Treatment with RA (2-8 μmol/L) dose-dependently enhanced autophagy, as evidenced by increased LC3 levels in breast cancer cell lines T47D, MCF-7 and MDA-MB-231...
December 14, 2017: Acta Pharmacologica Sinica
Qixing Li, Pian Zou, Jianbo Sun, Li Chen
A series of O2 -(2,4-dinitrophenyl)diazeniumdiolates derivatives were designed, synthesized and antiproliferative activities evaluated as novel nitric oxide (NO)-releasing prodrugs that could be activated by glutathione S-transferases π (GSTπ). Most of these derivatives exhibited significant antiproliferative activities compared to the reported NO-donor prodrug JS-K, among which compounds 27 and 36 had superior potency with IC50 below 1 μM. NO released amounts detection of all derivatives indicated that the antiproliferative activities were positively correlated with the levels of intracellular NO release in HCT116 cells...
January 1, 2018: European Journal of Medicinal Chemistry
Shing Chan, Qizhou Lian, Mei-Pian Chen, Dan Jiang, Jolie T K Ho, Yiu-Fai Cheung, Godfrey Chi-Fung Chan
Iron overload-induced cardiovascular toxicity is one of the most common causes of morbidity and mortality in beta-thalassemia major patients. We have previously shown that iron overload-induced systemic arterial changes characterized by endothelial dysfunction are associated with increased endothelial microparticle (EMP) release. In this study, we further demonstrate how EMP release is associated with iron-induced mitochondrial injury and apoptosis of endothelial cells. Iron increased the production of reactive oxygen species (ROS) and calcium influx into mitochondria [Ca2+ ]m ...
January 1, 2018: Toxicology and Applied Pharmacology
Jianxin Zhang, Chen Ming, Wenzhi Zhang, Patrick Nwabueze Okechukwu, Beata Morak-Młodawska, Krystian Pluta, Małgorzata Jeleń, Abdah Md Akim, Kok-Pian Ang, Kah Kooi Ooi
The asymptomatic properties and high treatment resistance of ovarian cancer result in poor treatment outcomes and high mortality rates. Although the fundamental chemotherapy provides promising anticancer activities, it is associated with severe side effects. The derivative of phenothiazine, namely, 10H-3,6-diazaphenothiazine (PTZ), was synthesized and reported with ideal anticancer effects in a previous paper. In this study, detailed anticancer properties of PTZ was examined on A2780 ovarian cancer cells by investigating the cytotoxicity profiles, mechanism of apoptosis, and cell invasion...
2017: Drug Design, Development and Therapy
Yayuan He, Wen Xiao, Guiyin Li, Fei Yang, Pian Wu, Tao Yang, Cuimei Chen, Ping Ding
A novel biological material with high adsorption capacity and good selectivity for Pb(2+) was synthesized. Response surface methodology (RSM) was utilized for the optimization of the variables during the systhesis. The synthesized biosorbent was characterized by scanning electron microscope (SEM), Fourier transform infrared spectroscopy (FT-IR) and X-ray diffraction (XRD). The optimized preparation condition for lead ion imprinted magnetic biosorbent (Pb(Ⅱ)-IMB) was obtained (0.19 g chitosan (CTS), 0.43 g magnetic Fe3O4 and 2...
November 3, 2017: Environmental Technology
E Pian, P D'Avanzo, S Benetti, M Branchesi, E Brocato, S Campana, E Cappellaro, S Covino, V D'Elia, J P U Fynbo, F Getman, G Ghirlanda, G Ghisellini, A Grado, G Greco, J Hjorth, C Kouveliotou, A Levan, L Limatola, D Malesani, P A Mazzali, A Melandri, P Møller, L Nicastro, E Palazzi, S Piranomonte, A Rossi, O S Salafia, J Selsing, G Stratta, M Tanaka, N R Tanvir, L Tomasella, D Watson, S Yang, L Amati, L A Antonelli, S Ascenzi, M G Bernardini, M Boër, F Bufano, A Bulgarelli, M Capaccioli, P Casella, A J Castro-Tirado, E Chassande-Mottin, R Ciolfi, C M Copperwheat, M Dadina, G De Cesare, A Di Paola, Y Z Fan, B Gendre, G Giuffrida, A Giunta, L K Hunt, G L Israel, Z-P Jin, M M Kasliwal, S Klose, M Lisi, F Longo, E Maiorano, M Mapelli, N Masetti, L Nava, B Patricelli, D Perley, A Pescalli, T Piran, A Possenti, L Pulone, M Razzano, R Salvaterra, P Schipani, M Spera, A Stamerra, L Stella, G Tagliaferri, V Testa, E Troja, M Turatto, S D Vergani, D Vergani
The merger of two neutron stars is predicted to give rise to three major detectable phenomena: a short burst of γ-rays, a gravitational-wave signal, and a transient optical-near-infrared source powered by the synthesis of large amounts of very heavy elements via rapid neutron capture (the r-process). Such transients, named 'macronovae' or 'kilonovae', are believed to be centres of production of rare elements such as gold and platinum. The most compelling evidence so far for a kilonova was a very faint near-infrared rebrightening in the afterglow of a short γ-ray burst at redshift z = 0...
November 2, 2017: Nature
A Seldenrijk, R Vis, M Henstra, K Ho Pian, D van Grootheest, T Salomons, F Overmeire, M de Boer, T Scheers, R Doornebal-Bakker, E Ruhé, C Vinkers
- Benzodiazepines are used frequently, despite the risk of severe side effects.- The Generic module 'Side effects; prevention, monitoring and treatment of side effects of drugs for psychiatric disorders' will be published soon. This contains recommendations for reduction in the risk for falls and fractures, cognitive problems and dependency related to the use of benzodiazepines or Z-drugs (zopiclone, zolpidem).- Prescribing physicians and pharmacists are compulsorily required to provide extensive information to patients on the anticipated effects and side effects of benzodiazepines, and on the limited prescription period...
2017: Nederlands Tijdschrift Voor Geneeskunde
X Liu, M K Wen, H Y Liu, D W Sun, J H Lang, Q B Fan, H H Shi
Objective: To investigate clinical outcomes of laparoendoscopic single-site ovarian cystectomy compared with traditional multi-port laparoscopic ovarian cystectomy. Methods: Data of 81 patients with ovarian cystectomy from January 2016 to May 2017, the single-site group (n=40) and the multi-port group (n=41) in Peking Union Medical College Hospital were retrospectively collected. The outcomes of single-site and multi-port groups were analyzed and compared, including: postoperative fever, operation time, blood loss, hemoglobin change, surgical complications, postoperative pain score, postoperative analgesic requirements, body image scale and cosmetic score, length of hospital stay, postoperative total cost...
October 25, 2017: Zhonghua Fu Chan Ke za Zhi
Kai-Li Mao, Zi-Liang Fan, Jian-Dong Yuan, Pian-Pian Chen, Jing-Jing Yang, Jie Xu, De-Li ZhuGe, Bing-Hui Jin, Qun-Yan Zhu, Bi-Xin Shen, Yasin Sohawon, Ying-Zheng Zhao, He-Lin Xu
A poor percutaneous penetration capability for most topical anti-inflammatory drugs is one of the main causes compromising their therapeutic effects on psoriatic skin. Even though curcumin has shown a remarkable efficacy in the treatment of psoriasis, its effective penetration through the stratum corneum is still a major challenge during transdermal delivery. The aim of our study was to design skin-permeating nanoparticles (NPs) to facilitate delivery of curcumin to the deeper layers of the skin. A novel amphiphilic polymer, RRR-α-tocopheryl succinate-grafted-ε-polylysine conjugate (VES-g-ε-PLL) was synthesized and self-assembled into polymeric nanoparticles...
December 1, 2017: Colloids and Surfaces. B, Biointerfaces
Pian-Pian Chen, Xiu-Ying Ma, Qian Lin, He-Lin Xu, Hong-Xue Shi, Hong-Yu Zhang, Jian Xiao, Fu-Neng Geng, Ying-Zheng Zhao
Gastric cancer is a leading cause of cancer‑associated mortality worldwide. In studies on the mechanisms of antigastric cancer drugs, autophagy and endoplasmic reticulum (ER) stress have been demonstrated to serve an active role in gastric cancer. The organic extract of Periplaneta americana (also termed American Cockroach), which is named Kangfuxin (KFX) in China, has been used clinically as a traditional Chinese medicine against disorders, including stomach bleeding, gastric ulcers, tuberculosis, burns and trauma...
December 2017: Molecular Medicine Reports
Pian Liu, Shao-Hua Xie, Shaobo Hu, Xiang Cheng, Tianyi Gao, Chen Zhang, Zifang Song
BACKGROUND: Hepatocellular carcinoma possesses a notable sex difference in incidence, and a protective role of estrogens has been hypothesized. METHODS: Using data from 13 cancer registries in the Surveillance, Epidemiology, and End Results Program, we describe the age-specific sex difference in the incidence of hepatocellular carcinoma in the United States during 1992-2013. We used a curve fitting by non-linear regression to quantitatively characterize the age-specific incidence rate of hepatocellular carcinoma by sex...
September 15, 2017: Oncotarget
Leslie A Schornack, Curtis L Baysinger, May C M Pian-Smith
PURPOSE OF REVIEW: Simulation training in obstetric anesthesia has become widespread in recent years. Simulations are used to train staff and trainees, assess and improve team performance, and evaluate the work environment. This review summarizes current research in these categories. RECENT FINDINGS: Simulation to improve individual technical skills has focused on induction of general anesthesia for emergent cesarean delivery, an infrequently encountered scenario by anesthesia trainees...
December 2017: Current Opinion in Anaesthesiology
Jie Liu, Li-Xin Wei, Qi Wang, Yuan-Fu Lu, Feng Zhang, Jing-Zhen Shi, Cen Li, M George Cherian
ETHNOPHARMOCOLOGICAL RELEVANCE: Herbo-metallic preparations have a long history in the treatment of diseases, and are still used today for refractory diseases, as adjuncts to standard therapy, or for economic reasons in developing countries. AIM OF THE REVIEW: This review uses cinnabar (HgS) and realgar (As4S4) as mineral examples to discuss their occurrence, therapeutic use, pharmacology, toxicity in traditional medicine mixtures, and research perspectives. MATERIALS AND METHODS: A literature search on cinnabar and realgar from PubMed, Chinese pharmacopeia, Google and other sources was carried out...
August 31, 2017: Journal of Ethnopharmacology
Pian Liu, Shao-Hua Xie, Shaobo Hu, Xiang Cheng, Tianyi Gao, Chen Zhang, Zifang Song
BACKGROUND: Hepatocellular carcinoma possesses a notable sex difference in incidence, and a protective role of estrogens has been hypothesized. METHODS: Using data from 13 cancer registries in the Surveillance, Epidemiology, and End Results Program, we describe the age-specific sex difference in the incidence of hepatocellular carcinoma in the United States during 1992-2013. We used a curve fitting by non-linear regression to quantitatively characterize the age-specific incidence rate of hepatocellular carcinoma by sex...
July 12, 2017: Oncotarget
Marie-Laure Théron, Laetitia Piane, Laetitia Lucarelli, Rémi Henrion, Catherine Layssol-Lamour, Florence Palanché, Didier Concordet, Jean-Pierre D Braun, Catherine Trumel, Rachel Lavoué
OBJECTIVE To investigate effects of storage conditions on the canine urine protein-to-creatinine ratio (UPC) and on SDS-agarose gel electrophoresis (AGE) of urinary proteins. SAMPLE Urine specimens from 20 proteinuric (UPC > 0.5) and 20 nonproteinuric (UPC ≤ 0.2) dogs. PROCEDURES UPC and SDS-AGE were performed on urine specimens stored at room temperature (20°C) and 4°C for up to 5 days and at -20° and -80°C for up to 360 days; some specimens were subjected to 3 freeze-thaw cycles. Results were compared with those obtained for fresh urine specimens...
August 2017: American Journal of Veterinary Research
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