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https://www.readbyqxmd.com/read/28545188/clinacanthus-nutans-hexane-extracts-induce-apoptosis-through-a-caspase-dependent-pathway-in-human-cancer-cell-lines
#1
Pei Ying Ng, Soi Moi Chye, Chew Hee Ng, Rhun Yian Koh, Yee Lian Tiong, Liew Phing Pui, Yong Hui Tan, Crystale Siew Ying Lim, Khuen Yen Ng
Background: Clinacanthus nutans (C.nutans) is a plant consumed as a cancer treatment in tropical Asia. Despite the availability of numerous anecdotal reports, evaluation of active anticancer effects has remained elusive. Therefore we here examined antiproliferative, reactive oxygen species (ROS)-inducing and apoptosis mechanisms of whole plant extracts in different cancer cell lines. Methods: Antiproliferative actions of five solvent extracts (hexane, chloroform, ethyl acetate, methanol and water) of C.nutans were tested on non-small cell lung cancer (A549), nasopharygeal cancer (CNE1) and liver cancer (HepG2) cells using MTT assay...
April 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28544850/pcpp-adjuvanted-respiratory-syncytial-virus-rsv-sf-subunit-vaccine-self-assembled-supramolecular-complexes-enable-enhanced-immunogenicity-and-protection
#2
Corinne Cayatte, Alexander Marin, Gaurav Manohar Rajani, Kirsten Schneider-Ohrum, Angie Snell Bennett, Jason D Marshall, Alexander K Andrianov
PCPP, a well-defined polyphosphazene macromolecule, has been studied as an immunoadjuvant for a soluble form of the post-fusion glycoprotein (RSV sF) of RSV, which is an attractive vaccine candidate for inducing RSV-specific immunity in mice and humans. We demonstrate that RSV sF-PCPP formulations induce high neutralization titers to RSV comparable to Alum formulations even at a low PCPP dose and protect animals against viral challenge both in the lung and upper respiratory tract. PCPP formulations were also characterized by Th1-biased responses, compared to Th2-biased responses that are more typical for RSV sF alone or RSV sF-Alum formulations, suggesting an inherent immunostimulating activity of the polyphosphazene adjuvant...
May 25, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/28537880/biological-effects-and-epidemiological-consequences-of-arsenic-exposure-and-reagents-that-can-ameliorate-arsenic-damage-in-vivo
#3
REVIEW
Chinthalapally V Rao, Sanya Pal, Altaf Mohammed, Mudassir Farooqui, Mark P Doescher, Adam S Asch, Hiroshi Y Yamada
Through contaminated diet, water, and other forms of environmental exposure, arsenic affects human health. There are many U.S. and worldwide "hot spots" where the arsenic level in public water exceeds the maximum exposure limit. The biological effects of chronic arsenic exposure include generation of reactive oxygen species (ROS), leading to oxidative stress and DNA damage, epigenetic DNA modification, induction of genomic instability, and inflammation and immunomodulation, all of which can initiate carcinogenesis...
May 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/28535594/industrial-pm2-5-cause-pulmonary-adverse-effect-through-rhoa-rock-pathway
#4
Junyan Yan, Chia-Hsiang Lai, Shih-Chun Candice Lung, Chongjun Chen, Wen-Cheng Wang, Pin-I Huang, Chia-Hua Lin
According to the Chinese Ministry of Health, industrial pollution-induced health impacts have been the leading cause of death in China. While industrial fine particulate matter (PM2.5) is associated with adverse health effects, the major action mechanisms of different compositions of PM2.5 are currently unclear. In this study, we treated normal human lung epithelial BEAS-2B cells with industrial organic and water-soluble PM2.5 extracts under daily alveolar deposition dose to elucidate the molecular mechanisms underlying adverse pulmonary effects induced by PM2...
May 19, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28535027/arsenite-binds-to-the-ring-finger-domain-of-fancl-e3-ubiquitin-ligase-and-inhibits-dna-interstrand-cross-link-repair
#5
Ji Jiang, Marina Bellani, Lin Li, Pengcheng Wang, Michael M Seidman, Yinsheng Wang
Human exposure to arsenic in drinking water is known to be associated with the development of bladder, lung, kidney, and skin cancers. The molecular mechanisms underlying the carcinogenic effects of arsenic species remain incompletely understood. DNA interstrand cross-links (ICLs) are among the most cytotoxic type of DNA lesions that block DNA replication and transcription, and these lesions can be induced by endogenous metabolism and by exposure to exogenous agents. Fanconi anemia (FA) is a congenital disorder manifested with elevated sensitivity toward DNA interstrand cross-linking agents...
May 23, 2017: ACS Chemical Biology
https://www.readbyqxmd.com/read/28534470/development-and-validation-of-a-rapid-and-sensitive-lc-ms-ms-method-for-the-pharmacokinetic-study-of-osimertinib-in-rats
#6
Shan Xiong, Zhipeng Deng, Peilu Sun, Yanling Mu, Mingxing Xue
<p>Osimertinib is a new-generation epidermal growth factor inhibitor for the treatment of non-small cell lung cancer. In the present study, a rapid and sensitive LC with tandem MS method was developed and validated for the determination of osimertinib in rat plasma. Chromatographic separation was carried out on a C18 column using acetonitrile and water containing 0.1% formic acid. The assay was validated over a concentration range of 1.0–1000 ng/mL for osimertinib, with a lower LOQ of 1.0 ng/mL...
May 22, 2017: Journal of AOAC International
https://www.readbyqxmd.com/read/28531802/anti-inflammatory-and-antioxidant-effect-of-cerium-dioxide-nanoparticles-immobilized-on-the-surface-of-silica-nanoparticles-in-rat-experimental-pneumonia
#7
Z Serebrovska, R J Swanson, V Portnichenko, A Shysh, S Pavlovich, L Tumanovska, A Dorovskych, V Lysenko, V Tertykh, Y Bolbukh, V Dosenko
A massage with the potent counter-inflammatory material, cerium dioxide nanoparticles, is promising and the antioxidant properties of CeO2 are considered the main, if not the only, mechanism of this action. Nevertheless, the elimination of ceria nano-particles from the organism is very slow and there is a strong concern for toxic effect of ceria due to its accumulation. To overcome this problem, we engineered a combined material in which cerium nanoparticles were immobilized on the surface of silica nanoparticles (CeO2 NP), which is shown to be easily removed from an organism and could be used as carriers for nano-ceria...
May 19, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28531130/comparative-safety-and-efficacy-profile-of-a-novel-oil-in-water-vaccine-adjuvant-comprising-vitamins-a-and-e-and-a-catechin-in-protective-anti-influenza-immunity
#8
Sapna Patel, Yasser Faraj, Debra K Duso, William W Reiley, Erik A Karlsson, Stacey Schultz-Cherry, Michael Vajdy
Non-replicating vaccines, such as those based on recombinant proteins, require adjuvants and delivery systems, which have thus far depended on mimicking pathogen danger signals and strong pro-inflammatory responses. In search of a safer and more efficacious alternative, we tested whether vaccinations with influenza recombinant hemagglutinin (HA) mixed with a novel vegetable oil in water emulsion adjuvant (Natural Immune-enhancing Delivery System, NIDS), based on the immune-enhancing synergy of vitamins A and E and a catechin, could protect against intra-nasal challenge with live influenza virus...
May 21, 2017: Nutrients
https://www.readbyqxmd.com/read/28529020/nosocomial-legionellosis-and-invasive-aspergillosis-in-a-child-with-t-lymphoblastic-leukemia
#9
Rhoikos Furtwängler, Uwe Schlotthauer, Barbara Gärtner, Norbert Graf, Arne Simon
Invasive aspergillosis of the lungs and the central nervous system and Legionella pneumophilia serotype 1 infection of the lungs were diagnosed in a 22-month old child during inpatient induction treatment for T-lymphoblastic leukemia. Environmental investigations i.e. samples from the hospital water system did not reveal any Legionella. The patient may have been exposed to waterborne pathogens despite terminal water filtration due to a technical device to release residual tap water from the hose after showering...
May 13, 2017: International Journal of Hygiene and Environmental Health
https://www.readbyqxmd.com/read/28527373/-i-don-t-believe-it-acceptance-and-skepticism-of-genetic-health-information-among-african-american-and-white-smokers
#10
Erika A Waters, Linda Ball, Sarah Gehlert
RATIONALE: Effective translation of genomics research into practice depends on public acceptance of genomics-related health information. OBJECTIVE: To explore how smokers come to accept or reject information about the relationship between genetics and nicotine addiction. METHODS: Thirteen focus groups (N = 84) were stratified by education (seven < Bachelor's degree, six ≥ Bachelor's degree) and race (eight black, five white). Participants viewed a 1-min video describing the discovery of a genetic variant associated with increased risk of nicotine addiction and lung cancer...
May 3, 2017: Social Science & Medicine
https://www.readbyqxmd.com/read/28527358/improving-the-pharmacokinetics-and-tissue-distribution-of-pyrinezolid-by-self-assembled-polymeric-micelles
#11
Haiyue Long, Xiaoling Li, Zitai Sang, Lan Mei, Tao Yang, Zicheng Li, Liangxue Zhou, Yu Zheng, Gu He, Gang Guo, Zhenling Wang, Yong Deng, Youfu Luo
Antibiotic-resistance by bacteria is a growing global concern within the healthcare field, and it has provided an impetus for continued antimicrobial development. Pyrinezolid (PZ), a novel oxazolidinone compound, can effectively inhibit most gram-positive bacteria, including methicillin-resistant Staphylococcus aureus (MRSA) and vancomycin-resistant Enterococci (VRE). Though PZ is a promising antimicrobial candidate, the druggability of PZ is limited by its poor water solubility. Therefore, the amphipathic mPEG-PLLA copolymer was used to prepare the pyrinezolid micelles (PZ-M)...
May 8, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28526890/a-heteromeric-molecular-complex-regulates-the-migration-of-lung-alveolar-epithelial-cells-during-wound-healing
#12
Manik C Ghosh, Patrudu S Makena, Joseph Kennedy, Bin Teng, Charlean Luellen, Scott E Sinclair, Christopher M Waters
Alveolar type II epithelial cells (ATII) are instrumental in early wound healing in response to lung injury, restoring epithelial integrity through spreading and migration. We previously reported in separate studies that focal adhesion kinase-1 (FAK) and the chemokine receptor CXCR4 promote epithelial repair mechanisms. However, potential interactions between these two pathways were not previously considered. In the present study, we found that wounding of rat ATII cells promoted increased association between FAK and CXCR4...
May 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28522334/safety-evaluation-of-chlorella-sorokiniana-strain-ck-22-based-on-an-in%C3%A2-vitro-cytotoxicity-assay-and-a-13-week-subchronic-toxicity-trial-in-rats
#13
Sayaka Himuro, Sugi Ueno, Naoto Noguchi, Takuya Uchikawa, Toshihiro Kanno, Akira Yasutake
The genus Chlorella contains unicellular green algae that have been used as food supplements. The purpose of this work was to evaluate the safety of the Chlorella sorokiniana strain CK-22 using powdered preparation (CK-22P) both by in vitro and in vivo assays. These included an experiment for cytotoxicity using Chinese hamster lung fibroblasts (V79 cells) and a 13-week repeated-dose oral toxicity trial using Wistar rats. The cytotoxicity was evaluated by MTT assay of a hot water extract (Hw-Ex) and 80% ethanol extract (Et-Ex) of CK-22P, and no effect on cell viability was observed...
May 15, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28514304/diagnostic-and-clinical-application-value-of-magnetic-resonance-imaging-mri-for-progressive-massive-fibrosis-of-coal-worker-pneumoconiosis-case-reports
#14
Lansheng Zhang, Chun Wang, Qiuyue Yan, Tao Zhang, Zhengxiang Han, Guan Jiang
RATIONALE: Using magnetic resonance imaging (MRI), we diagnosed pneumoconiosis by identifying the content and distribution of hydrogen protons in the water molecules in different tissues and lesions. PATIENT CONCERNS: 25 cases of CWP patients with progressive massive fibrosis (PMF) lesions. DIAGNOSES: Patients were correctly diagnosed, with one case each of Phase I and II pneumoconiosis and 23 cases of Phase III pneumoconiosis. INTERVENTIONS: None...
May 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28513136/cold-chain-free-storable-hydrogel-for-infant-friendly-oral-delivery-of-amoxicillin-for-the-treatment-of-pneumococcal-pneumonia
#15
Keming Xu, Liang Li, Mingyue Cui, Yiyuan Han, Huseyin Enis Karahan, Vincent Tak Kwong Chow, Chenjie Xu
Pneumonia is the major cause of death in children under five, particularly in developing countries. Antibiotics such as amoxicillin greatly help in mitigating this problem. However, there is lack of an infant/toddler-friendly formulation for countries with limited clean water and electricity. Here we report the development of a shear-thinning hydrogel system for the oral delivery of amoxicillin to the infant/toddler patients, without the need of clean water and refrigeration. The hydrogel formulation consists of metolose (hydroxypropyl methylcellulose) and amoxicillin...
May 17, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28499212/quantification-of-pasteurella-multocida-in-experimentally-infected-pigs-using-a-real-time-pcr-assay
#16
V Tocqueville, I Kempf, F Paboeuf, C Marois-Créhan
The aim of the study was to quantify Pasteurella multocida in experimentally infected pigs using a new qPCR assay based on the sodA gene and validated with 35 P. multocida strains, including strains isolated from pigs with pneumonia, clinically healthy pigs (nasal cavities), and human infections. The specificity of the test was verified with a collection of 60 strains of bacterial species other than P. multocida. The estimated detection threshold was 10 genome equivalents per microliter. The amplification efficiency and value of the correlation coefficients were 95...
April 27, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28497392/xuebijing-injection-increases-early-survival-rate-by-alleviating-pulmonary-vasopermeability-in-rats-subjected-to-severe-burns
#17
Yue-Long Dai, Jing-Yuan Li, Hui-Ying Bai, Si Liu, Yong-Qi Dou, Sen Hu
OBJECTIVES: To investigate the effects of Xuebijing Injection (, XBJ) on survival rate and pulmonary vasopermeability in a rat model of severe scald injury. METHODS: Rats were divided into two experiments: experiment 1 was monitored for 12 h post-injury for survival analysis after severe burns; in experiment 2, rats were killed for determination of pulmonary vascular permeability and pro-inflflammatory mediators. In both experiments, rats were subject to third-degree 50% total body surface area (TBSA) burns or sham injury followed by XBJ or normal saline (NS) treatment...
May 11, 2017: Chinese Journal of Integrative Medicine
https://www.readbyqxmd.com/read/28496315/hydrogen-coadministration-slows-the-development-of-copd-like-lung-disease-in-a-cigarette-smoke-induced-rat-model
#18
Xiaoyu Liu, Cuiqing Ma, Xiaoyu Wang, Wenjing Wang, Zhu Li, Xiansheng Wang, Pengyu Wang, Wuzhuang Sun, Baojian Xue
BACKGROUND: Chronic obstructive pulmonary disease (COPD) is a progressive pulmonary disease caused by harmful gases or particles. Recent studies have shown that 2% hydrogen or hydrogen water is effective in the treatment and prevention of a variety of diseases. This study investigated the beneficial effects and the possible mechanisms of different hydrogen concentrations on COPD. METHODS: A rat COPD model was established through smoke exposure methods, and inhalation of different concentrations of hydrogen was used as the intervention...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/28494726/chlorella-vulgaris-induces-apoptosis-of-human-non-small-cell-lung-carcinoma-nsclc-cells
#19
Zhi-Dong Zhang, Kai Liang, Kun Li, Guo-Quan Wang, Ke-Wei Zhang, Lei Cai, Shui-Ting Zhai, Kuo-Chen Chou
PURPOSE: Chlorella vulgaris(C. vulgaris), a unicellular green microalga, has been widely used as a food supplement and reported to have antioxidant and anticancer properties. The current study was designed to assess the cytotoxic, apoptotic, and DNA-damaging effects of C. vulgaris growth factor (CGF), hot water C. vulgaris extracts, in lung tumor A549 and NCI-H460 cell lines. METHODS: A549 cells, NCI-H460 cells, and normal human fibroblasts were treated with CGF at various concentrations (0-300 μg/ml) for 24 hr...
May 9, 2017: Medicinal Chemistry
https://www.readbyqxmd.com/read/28493001/study-on-the-tolerance-and-adaptation-of-rats-to-angiostrongylus-cantonensis-infection
#20
Liu Ji, Xu Yiyue, He Xujin, Zheng Minghui, Zhang Mengying, Hu Yue, Wu Yanqi, Song Langui, Zeng Xin, Lin Datao, Wan Shuo, Zheng Huanqin, Wu Zhongdao, Lv Zhiyue
Angiostrongylus cantonensis (A. cantonensis) is the most common infectious agent causing eosinophilic meningitis. As an important food-borne parasitic disease, angiostrongyliasis cantonensis is an emerging infectious disease which brings severe harm to central nerve system of human. Rat, one of the few permissive hosts of A. cantonensis known to date, plays an indispensable role in the worm's life cycle. However, the tolerance and adaptation of rat to A. cantonensis infection is rarely understood. In this study, we infected rats with different numbers the third stage larvae (L3) of A...
May 11, 2017: Parasitology Research
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