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https://www.readbyqxmd.com/read/28549343/hmgb1-mediated-autophagy-attenuates-gemcitabine-induced-apoptosis-in-bladder-cancer-cells-involving-jnk-and-erk-activation
#1
Hubin Yin, Xiaoyu Yang, Wen Gu, Yan Liu, Xinyuan Li, Xiaolong Huang, Xin Zhu, Yong Tao, Xin Gou, Weiyang He
High-mobility group box 1 (HMGB1) has been found to mediate autophagy during chemotherapy in several cancers. However, whether HMGB1plays a role in autophagy and chemoresistance in bladder cancer is elusive. In this report, HMGB1 expression was found to be increased in 30 primary bladder cancer tissue specimens compared to their matched adjacent non-tumor tissues. While gemcitabine induced apoptotic cell death, it also induced HMGB1 expression and autophagy in bladder cancer T24 and BIU-87 cells. Suppressing HMGB1 expression with siRNA strongly potentiated gemcitabine-induced apoptosis...
May 11, 2017: Oncotarget
https://www.readbyqxmd.com/read/28549303/end-of-life-eol-mobile-phone-management-in-hong-kong-households
#2
Wen-Jing Deng, John P Giesy, C S So, Hai-Long Zheng
A questionnaire survey and interviews were conducted in households and end-of-life (EoL) mobile phone business centres in Hong Kong. Widespread Internet use, combined with the rapid evolution of modern social networks, has resulted in the more rapid obsolescence of mobile phones, and thus a tremendous increase in the number of obsolete phones. In 2013, the volume of EoL mobile phones generated in Hong Kong totalled at least 330 tonnes, and the amount is rising. Approximately 80% of electronic waste is exported to Africa and developing countries such as mainland China or Pakistan for recycling...
May 23, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28549280/protocols-for-the-analytical-characterization-of-therapeutic-monoclonal-antibodies-i-non-denaturing-chromatographic-techniques
#3
Alexandre Goyon, Valentina D'Atri, Balazs Bobaly, Elsa Wagner-Rousset, Alain Beck, Szabolcs Fekete, Davy Guillarme
Size-, charge- and hydrophobicity-related variants of a biopharmaceutical product have to be deeply characterized for batch consistency and for the assessment of immunogenicity and safety effects. Size exclusion chromatography (SEC) and ion exchange chromatography (IEX) are considered as the gold standard for the analysis of high molecular weight species (HMWS) and charge-related variants, respectively. Hydrophobic interaction chromatography (HIC) has drawn renewed attention to monitor the small drug payload distribution in the cysteine-linked antibody-drug conjugates (ADC)...
May 11, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28548973/beneficial-effects-of-two-types-of-personal-health-record-services-connected-with-electronic-medical-records-within-the-hospital-setting
#4
Jisan Lee, James G Boram Kim, Meiling Jin, Kiwhan Ahn, Byungjun Kim, Sukwha Kim, Jeongeun Kim
Healthcare consumers must be able to make decisions based on accurate health information. To assist with this, we designed and developed an integrated system connected with electronic medical records in hospitals to ensure delivery of accurate health information. The system-called the Consumer-centered Open Personal Health Record platform-is composed of two services: a portal for users with any disease and a mobile application for users with cleft lip/palate. To assess the benefits of these services, we used a quasi-experimental, pretest-posttest design, assigning participants to the portal (n = 50) and application (n = 52) groups...
May 26, 2017: Computers, Informatics, Nursing: CIN
https://www.readbyqxmd.com/read/28548922/development-of-ergonomics-audits-for-bagging-haul-truck-and-maintenance-and-repair-operations-in-mining
#5
Patrick G Dempsey, Jonisha Pollard, William L Porter, Alan Mayton, John R Heberger, Sean Gallagher, Leanna Reardon, Colin G Drury
The development and testing of ergonomics and safety audits for small and bulk bag filling, haul truck, and maintenance and repair operations in coal preparation and mineral processing plants found at surface mine sites is described. The content for the audits was derived from diverse sources of information on ergonomics and safety deficiencies including: analysis of injury, illness, and fatality data and reports; task analysis; empirical laboratory studies of particular tasks; field studies and observations at mine sites; and maintenance records...
May 26, 2017: Ergonomics
https://www.readbyqxmd.com/read/28548883/simultaneous-detection-of-oral-pathogens-in-subgingival-plaque-and-prostatic-fluid-of-men-with-periodontal-and-prostatic-diseases
#6
John Estemalik, Catherine Demko, Nabil F Bissada, Nishant Joshi, Donald Bodner, Eswar Shankar, Sanjay Gupta
BACKGROUND: Chronic prostatitis (CP) and benign prostatic hyperplasia (BPH) are complex inflammatory conditions for which the etiological determinants are still poorly defined. Periodontitis is caused by subgingival colonizing bacteria in the oral cavity. The causal effect of periodontal disease on prostatic inflammation has not been established. The purpose of this study is to isolate oral pathogens from expressed prostatic secretions of patients with periodontal disease and chronic prostatitis or benign prostatic hyperplasia...
May 26, 2017: Journal of Periodontology
https://www.readbyqxmd.com/read/28548840/acceleration-of-crystal-growth-of-amorphous-griseofulvin-by-low-concentration-poly-ethylene-oxide-aspects-of-crystallization-kinetics-and-molecular-mobility
#7
Qin Shi, Chen Zhang, Yuan Su, Jie Zhang, Dongshan Zhou, Ting Cai
This study aims to investigate the crystallization behavior and molecular dynamics of amorphous griseofulvin (GSF) in the presence of low-concentration poly (ethylene oxide) (PEO). We observe that the addition of 3 % w/w PEO remarkably increases the crystal growth rate of GSF by two orders of magnitude, in both the supercooled liquid and glassy states. The liquid dynamics of amorphous GSF in the presence and absence of PEO are characterized by dielectric spectroscopy. With an increase of the PEO content, the α-relaxation times of the systems decrease, indicating the increase of global molecular mobility...
May 26, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/28548584/the-sex-disparity-in-risky-driving-a-survey-of-colombian-young-drivers
#8
Oscar Oviedo-Trespalacios, Bridie Scott-Parker
OBJECTIVE: The overrepresentation of young drivers in poor road safety outcomes has long been recognised as a global road safety issue. In addition, the overrepresentation of males in crash statistics has also been recognised as a pervasive young driver problem. Whilst progress in road safety evidenced as a stabilisation and/or reduction in poor road safety outcomes has been made in developed nations, less-developed nations contribute the greatest road safety trauma, and developing nations such as Colombia continue to experience increasing trends in fatality rates...
May 26, 2017: Traffic Injury Prevention
https://www.readbyqxmd.com/read/28548510/density-propagator-for-many-body-localization-finite-size-effects-transient-subdiffusion-and-exponential-decay
#9
Soumya Bera, Giuseppe De Tomasi, Felix Weiner, Ferdinand Evers
We investigate charge relaxation in quantum wires of spinless disordered fermions (t-V model). Our observable is the time-dependent density propagator Π_{ϵ}(x,t), calculated in windows of different energy density ϵ of the many-body Hamiltonian and at different disorder strengths W, not exceeding the critical value W_{c}. The width Δx_{ϵ}(t) of Π_{ϵ}(x,t) exhibits a behavior dlnΔx_{ϵ}(t)/dlnt=β_{ϵ}(t), where the exponent function β_{ϵ}(t)≲1/2 is seen to depend strongly on L at all investigated parameter combinations...
May 12, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28548496/alkylated-selenophene-based-ladder-type-monomers-via-a-facile-route-for-high-performance-thin-film-transistor-applications
#10
Zhuping Fei, Yang Han, Eliot Gann, Thomas Hodsden, Anthony Chesman, Christopher R McNeill, Thomas D Anthopoulos, Martin Heeney
We report the synthesis of two new selenophene containing ladder-type monomers, cyclopentadiselenophene (CDS) and indacenodiselenophene (IDSe), via a twofold and fourfold Pd catalyzed coupling with a 1,1-diborylmethane derivative. Co-polymers with benzothiadiazole (BT) were prepared in high yield by Suzuki polymerization to afford co-polymers which exhibited excellent solubility in a range of non-chlorinated solvents. The CDS co-polymer exhibited a band gap of just 1.18 eV, which is amongst the lowest reported for donor-acceptor polymers...
May 26, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28548386/design-and-synthesis-of-atglistatin-derivatives-as-adipose-triglyceride-lipase-inhibitors
#11
Jiyu Jin, Suling Huang, Lei Wang, Ying Leng, Wei Lu
Adipose triglyceride lipase (ATGL) is a rate-limiting enzyme that mobilizes fatty acids from cellular triglyceride stores. Metabolic syndrome, which refers to a group of abnormalities that occur together and increase the risk of coronary artery disease, stroke, type-2 diabetes, and cachexia, can be treated using ATGL-specific inhibitors. Atglistatin (1) is the first small-molecule inhibitor of ATGL. In this study, we designed and synthesized 29 Atglistatin derivatives and evaluated their inhibition of forskolin-stimulated lipolysis in 3T3-L1 adipocytes as an indicator of their potential to inhibit ATGL in adipose tissues...
May 26, 2017: Chemical Biology & Drug Design
https://www.readbyqxmd.com/read/28548168/tuning-the-seebeck-effect-in-c60-based-hybrid-thermoelectric-devices-through-temperature-dependent-surface-polarization-and-thermally-modulated-interface-dipoles
#12
Yuchun Liu, Ling Xu, Chen Zhao, Ming Shao, Bin Hu
Fullerene (C60) is an important n-type organic semiconductor with high electron mobility and low thermal conductivity. In this work, we report the experimental results on the tunable Seebeck effect of C60 hybrid thin-film devices by adopting different oxide layers. After inserting n-type high-dielectric constant titanium oxide (TiOx) and zinc oxide (ZnO) layers, we observed a significantly enhanced n-type Seebeck effect in oxide/C60 hybrid devices with Seebeck coefficients of -5.8 mV K(-1) for TiOx/C60 and -2...
May 26, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28548048/reliable-passivation-of-black-phosphorus-by-thin-hybrid-coating
#13
Sampath Gamage, Alireza Fali, Neda Aghamiri, Lingming Yang, Pei-De Ye, Yohannes Abate
Black phosphorus (BP) possesses several extraordinary physical properties, which include in-plane anisotropy, thickness dependent direct bandgap and high carrier mobility. These physical properties make BP highly desirable from the point of view of fundamental science and modern optoelectronics applications. The excitement about this material has always been accompanied by unreserved skepticism due to its extraordinary degradation under ambient conditions. Here we show ambient degradation of exfoliated BP can be effectively suppressed using thin layer of hybrid MOCVD coating of BN followed by ALD coating of Al2O3...
May 26, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28547999/a-long-term-self-managed-handwriting-intervention-for-people-with-parkinson-s-disease-results-from-the-control-group-of-a-phase-ii-randomized-controlled-trial
#14
Johnny Collett, Marloes Franssen, Charlotte Winward, Hooshang Izadi, Andy Meaney, Wala Mahmoud, Marko Bogdanovic, Martin Tims, Derick Wade, Helen Dawes
OBJECTIVE: To report on the control group of a trial primarily designed to investigate exercise for improving mobility in people with Parkinson's disease (pwP). The control group undertook a handwriting intervention to control for attention and time spent practising a specific activity. DESIGN: Secondary analysis of a two-arm parallel phase II randomized controlled trial with blind assessment. SETTING: Community. PARTICIPANTS: PwP able to walk ⩾100 m and with no contraindication to exercise were recruited from the Thames Valley, UK, and randomized (1:1) to exercise or handwriting, via a concealed computer-generated list...
May 1, 2017: Clinical Rehabilitation
https://www.readbyqxmd.com/read/28547994/self-assembled-molecular-nanowires-for-high-performance-organic-transistors
#15
Luke R Fleet, James E Stott, Byron Villis, Salahud Din, Michele Serri, Gabriel Aeppli, Sandrine Heutz, Arokia Nathan
While organic semiconductors provide tantalising possibilities for low-cost, light-weight, flexible electronic devices, their current use in transistors - the fundamental building block - is rather limited as their speed and reliability is not competitive with their inorganic counterparts, and is simply too poor for many practical applications. Through self-assembly, highly ordered nanostructures can be prepared that have more competitive transport characteristics, but no simple, scalable method has been discovered that can produce devices based on such nanostructures...
May 26, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28547933/hybrid-approach-using-laparoscopy-and-transanal-minimally-invasive-surgery-to-treat-rectal-cancer-with-invasion-to-the-seminal-vesicles
#16
Takuya Yamaguchi, Minoru Imai, Dai Uematsu
We treated a 64-year-old man for rectal cancer with direct invasion to the seminal vesicles and no distant metastases by complete resection with laparoscopy and transanal minimally invasive surgery (TAMIS). We inserted the TAMIS device into the anal canal to above the anorectal ring and dissected to prostate level. High ligation of the inferior mesenteric artery and vein was performed by standard medial laparoscopy. The sigmoid and descending colon were mobilized, and in the postrectal space, we dissected to the space made by TAMIS...
May 2017: Asian Journal of Endoscopic Surgery
https://www.readbyqxmd.com/read/28547931/laparoscopic-excision-of-neurogenic-retrorectal-tumors
#17
Tatsuya Manabe, Ryo Koba, Kinuko Nagayoshi, Yoshihiko Sadakari, Hayato Fujita, Shuntaro Nagai, Takashi Ueki, Eishi Nagai, Masafumi Nakamura
Retrorectal tumors (RT) are uncommon and usually managed by open surgical excision. Laparoscopic excision for RT has been reported in only a small number of papers. We aimed to assess the laparoscopic approach for RT and to discuss the factors that made this procedure difficult. We performed laparoscopic excision using a five-trocar technique for neurogenic RT in three patients. Tumors were successfully excised laparoscopically in two patients. However, the third patient required open conversion because the tumor was strongly adhered to the sacrum and could not be mobilized by dissection, resulting in poor visualization of the dissected site...
May 2017: Asian Journal of Endoscopic Surgery
https://www.readbyqxmd.com/read/28547859/giant-cell-tumor-of-the-mobile-spine-occurring-in-pregnancy-a-case-report-and-literature-review
#18
Kai Zheng, Ming Xu, Bing Wang, Xiu-Chun Yu, Yong-Cheng Hu
Giant cell tumor (GCT) is a benign, locally aggressive tumor that rarely occurs in the spine. They usually occur in patients between 20 and 40 years of age; some patients with GCT present in hospital with pregnancy. The management of these patients can be challenging. The current study reports a case of GCT located in the sixth thoracic vertebra of a 31-year-old female at 34 weeks of gestation. An osteolytic lesion, 3.5 cm × 3.5 cm in diameter, was identified on CT. An MRI test of the lesion revealed a soft tissue mass involving the T 6-7 vertebrae, extending to the right pedicle of the T 6 vertebra and causing significant spinal cord compression...
May 26, 2017: Orthopaedic Surgery
https://www.readbyqxmd.com/read/28547577/pramipexole-overdose-associated-with-visual-hallucinations-agitation-and-myoclonus
#19
Adeline Cardon-Dunbar, Tom Robertson, Michael S Roberts, Geoffrey K Isbister
INTRODUCTION: Pramipexole is a dopamine D2 receptor agonist used to treat idiopathic Parkinson's disease and primary restless legs syndrome. There is limited information on pramipexole overdose. CASE REPORT: A 59-year-old male ingested 3 mg pramipexole, 2250 mg venlafaxine, 360 mg mirtazapine, with suicidal intent. He presented alert, had normal vital observations and normal pupillary reflexes. He was mildly agitated, reported visual hallucinations and was given 5 mg diazepam...
May 25, 2017: Journal of Medical Toxicology: Official Journal of the American College of Medical Toxicology
https://www.readbyqxmd.com/read/28547529/toll-like-receptor-4-tlr4-and-triggering-receptor-expressed-on-myeloid-cells-2-trem-2-activation-balance-astrocyte-polarization-into-a-proinflammatory-phenotype
#20
Gerardo Rosciszewski, Vanesa Cadena, Veronica Murta, Jeronimo Lukin, Alejandro Villarreal, Thierry Roger, Alberto Javier Ramos
Astrocytes react to brain injury with a generic response known as reactive gliosis, which involves activation of multiple intracellular pathways including several that may be beneficial for neuronal survival. However, by unknown mechanisms, reactive astrocytes can polarize into a proinflammatory phenotype that induces neurodegeneration. In order to study reactive gliosis and astroglial polarization into a proinflammatory phenotype, we used cortical devascularization-induced brain ischemia in Wistar rats and primary astroglial cell cultures exposed to oxygen-glucose deprivation (OGD)...
May 25, 2017: Molecular Neurobiology
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