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https://www.readbyqxmd.com/read/29237375/adhesive-drug-delivery-systems-based-on-polyelectrolyte-complex-nanoparticles-pec-np-for-bone-healing
#1
Martin Muller, David Vehlow, Bernhard Torger, Birgit Urban
BACKGROUND: In this contribution an overview is given on own work concerning drug loaded polyelectrolyte complex (PEC) nanoparticles (NP) used to functionalize bone substitute materials (BSM) for the therapy of bone defects associated with systemic bone diseases. In this context drug loaded PEC NP have certain advantages, which are exemplarily summarized herein. METHODS: Concerning preparative methods PEC NP were fabricated by controlled mixing of polycation and polyanion solutions and integration of charged drugs during and after mixing...
December 12, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/29231947/emulsion-stabilisation-by-complexes-of-oppositely-charged-synthetic-polyelectrolytes
#2
Ana Maria Bago Rodriguez, Bernard P Binks, Tomoko Sekine
We investigate the possibility of stabilising oil-water emulsions from the polyelectrolyte complexes (PEC) obtained in mixtures of a strong cationic polyelectrolyte (poly(diallyldimethylammonium chloride), PDADMAC) and a weak anionic one (poly(acrylic acid)sodium salt, PAANa). Unlike other previous work however, both polyelectrolytes (PEL) are chosen as they are completely water-soluble and possess no surface activity when present alone over nearly all the pH range. In water, the effects of PEL concentration, PEL mixing ratio and pH on the formation of PEC are studied in detail...
December 12, 2017: Soft Matter
https://www.readbyqxmd.com/read/29227535/antidiabetic-and-lipid-lowering-effects-of-the-polyphenol-extracts-from-the-leaves-of-clausena-lansium-lour-skeels-on-streptozotocin-induced-type-2-diabetic-rats
#3
Fansheng Kong, Zhipeng Su, Xiaoming Guo, Feng Zeng, Yongguang Bi
Clausena lansium (Lour.) Skeels (Wampee) is widely grown in China and considered as a healthy fruit. Its leaves are also considered as traditional herbs. This study analyzed polyphenol compounds in polyphenol extracts of the leaves C. lansium (lour.) Skeels (PEL) and investigated the protective effect of PEL against hyperglycemia and hyperlipidemia in T2DM rats. The result showed that PEL is composed mainly of gallic acid, chlorogenic acid, coffee acid, ferulic acid, and rutin. PEL could obviously relieve some symptoms of T2DM rats, including emaciation, hyperhidrosis, polyphagia, diuresis, liver swelling, kidney, and pancreas hypertrophy, as well as reduce fasting blood glucose...
December 11, 2017: Journal of Food Science
https://www.readbyqxmd.com/read/29213262/the-oxidative-stress-agent-hypochlorite-stimulates-c-di-gmp-synthesis-and-biofilm-formation-in-pseudomonas-aeruginosa
#4
Nikola Strempel, Michael Nusser, Anke Neidig, Gerald Brenner-Weiss, Joerg Overhage
The opportunistic human pathogen Pseudomonas aeruginosa is able to survive under a variety of often harmful environmental conditions due to a multitude of intrinsic and adaptive resistance mechanisms, including biofilm formation as one important survival strategy. Here, we investigated the adaptation of P. aeruginosa PAO1 to hypochlorite (HClO), a phagocyte-derived host defense compound and frequently used disinfectant. In static biofilm assays, we observed a significant enhancement in initial cell attachment in the presence of sublethal HClO concentrations...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29207182/antitumor-activity-of-the-synthetic-retinoid-st1926-on-primary-effusion-lymphoma-in-vitro-and-in-vivo-models
#5
Louna Karam, Bilal Houshaymi, Rana Abdel-Samad, Mariam Jaafar, Iman Halloum, Claudio Pisano, Frank Neipel, Nadine Darwiche, Raghida Abou Merhi
Primary effusion lymphoma (PEL) is a rare B-cell neoplasm, associated with Kaposi sarcoma-associated herpes virus/human herpes virus-8 (KSHV/HHV-8), arising as malignant effusions in body cavities. PEL cells do not harbor conventional genetic cancer mutations; however, their oncogenesis is mainly attributed to HHV-8 latent genes. Treatment strategies are inefficient resulting in poor prognosis of PEL patients, stressing the need for new effective therapy. ST1926 is a synthetic retinoid with favorable antitumor properties and no cross-resistance with the natural retinoid, all-trans retinoic acid...
December 5, 2017: Oncology Reports
https://www.readbyqxmd.com/read/29207179/arctigenin-induces-the-apoptosis-of-primary-effusion-lymphoma-cells-under-conditions-of-glucose-deprivation
#6
Yusuke Baba, Zenpei Shigemi, Naoko Hara, Misato Moriguchi, Marina Ikeda, Tadashi Watanabe, Masahiro Fujimuro
Kaposi's sarcoma-associated herpesvirus (KSHV) is the causative agent of primary effusion lymphoma (PEL) and Kaposi's sarcoma. PEL is a type of non-Hodgkin's B-cell lymphoma, affecting immunosuppressed individuals, such as post-transplant or AIDS patients. However, since PEL is resistant to chemotherapeutic regimens, new effective treatment strategies are required. Arctigenin, a natural lignan compound found in the plant Arctium lappa, has been widely investigated as a potential anticancer agent in the clinical setting...
December 1, 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/29206290/primary-effusion-lymphoma-in-taiwan-shows-two-distinctive-clinicopathological-subtypes-with-rare-hiv-association
#7
Bo-Jung Chen, Ran-Ching Wang, Chung-Han Ho, Chang-Tsu Yuan, Wan-Ting Huang, Sheau-Fang Yang, Pin-Pen Hsieh, Yun-Chih Yung, Shih-Yao Lin, Chen-Fang Hsu, Ying-Zhen Su, Chun-Chi Kuo, Shih-Sung Chuang
AIMS: To investigate the clinicopatholoigcal and molecular features of primary effusion lymphoma (PEL) in Taiwan and the association with HIV, HHV8, and EBV. METHODS AND RESULTS: We retrospectively investigated 26 cases with a median age of 76.5. Only one (4%) patient was infected with HIV. Cytologically, all lymphoma cells revealed typical immunoblastic to plasmablastic morphology. Immunohistochemically, HHV8 was positive in 8 (32%) tumours, negative in 17 (68%) cases...
December 5, 2017: Histopathology
https://www.readbyqxmd.com/read/29179721/apigenin-by-activating-p53-and-inhibiting-stat3-modulates-the-balance-between-pro-apoptotic-and-pro-survival-pathways-to-induce-pel-cell-death
#8
Marisa Granato, Maria Saveria Gilardini Montani, Roberta Santarelli, Gabriella D'Orazi, Alberto Faggioni, Mara Cirone
BACKGROUND: Apigenin is a flavonoid widely distributed in plant kingdom that exerts cytotoxic effects against a variety of solid and haematological cancers. In this study, we investigated the effect of apigenin against primary effusion lymphoma (PEL), a KSHV-associated B cell lymphoma characterized by a very aggressive behavior, displaying constitutive activation of STAT3 as well as of other oncogenic pathways and harboring wtp53. METHODS: Cell death was assessed by trypan blue exclusion assay, FACS analysis as well as by biochemical studies...
November 28, 2017: Journal of Experimental & Clinical Cancer Research: CR
https://www.readbyqxmd.com/read/29127835/spatial-variations-source-apportionment-and-potential-ecological-risks-of-polycyclic-aromatic-hydrocarbons-and-synthetic-musks-in-river-sediments-in-shanghai-china
#9
Xue-Tong Wang, Bao-Ping Hu, Hang-Xin Cheng, Hao-Hao Jia, Ying Zhou
The aims of this study were to investigate the levels, possible sources and potential ecological risks of 26 polycyclic aromatic hydrocarbons (PAHs) including highly carcinogenic dibenzopyrene (DBP) isomers and 4 synthetic musks (SMs) in river sediments from Shanghai. 74 sediment samples were collected from the Huangpu River and its main tributaries. The total concentrations ranged from 52.0 to 11400 ng g(-1) for Σ26PAHs, 25.1-9910 ng g(-1) for 16 USEPA priority PAHs (Σ16PAHs), 0.769-384 ng g(-1) for Σ4DBPs, and 0...
October 28, 2017: Chemosphere
https://www.readbyqxmd.com/read/29124978/sustained-release-solid-dispersion-of-pelubiprofen-using-the-blended-mixture-of-aminoclay-and-ph-independent-polymers-preparation-and-in-vitro-in-vivo-characterization
#10
Yeo-Song Lee, Jae Guen Song, Sang Hoon Lee, Hyo-Kyung Han
The present study aimed to develop the sustained-release oral dosage form of pelubiprofen (PEL) by using the blended mixture of 3-aminopropyl functionalized-magnesium phyllosilicate (aminoclay) and pH-independent polymers. The sustained-release solid dispersion (SRSD) was prepared by the solvent evaporation method and the optimal composition of SRSD was determined as the weight ratio of drug: Eudragit® RL PO: Eudragit® RS PO of 1:1:2 in the presence of 1% of aminoclay (SRSD(F6)). The dissolution profiles of SRSD(F6) were examined at different pHs and in the simulated intestinal fluids...
November 2017: Drug Delivery
https://www.readbyqxmd.com/read/29105119/lymphoproliferative-disorders-with-concurrent-hhv8-and-ebv-infection-beyond-primary-effusion-lymphoma-and-germinotropic-lymphoproliferative-disorder
#11
Wei Wang, Rashmi Kanagal-Shamanna, Jeffrey L Medeiros
AIMS: Lymphoproliferative disorders (LPD) characterized by human herpesvirus 8 (HHV8) and Epstein-Barr virus (EBV) infection are rare and two entities are included in the World and Health Organization classification: primary effusion lymphoma (PEL) and germinotropic LPD. These two entities have very different clinicopathological presentations and prognosis. Here we describe two cases of HHV8-positive, EBV-positive lymphoma with clinicopathological features that are not consistent with either PEL or germinotropic LPD...
November 3, 2017: Histopathology
https://www.readbyqxmd.com/read/29084370/people-s-risk-recognition-preceding-evacuation-and-its-role-in-demand-modeling-and-planning
#12
Junji Urata, Adam J Pel
Evacuation planning and management involves estimating the travel demand in the event that such action is required. This is usually done as a function of people's decision to evacuate, which we show is strongly linked to their risk awareness. We use an empirical data set, which shows tsunami evacuation behavior, to demonstrate that risk recognition is not synonymous with objective risk, but is instead determined by a combination of factors including risk education, information, and sociodemographics, and that it changes dynamically over time...
October 30, 2017: Risk Analysis: An Official Publication of the Society for Risk Analysis
https://www.readbyqxmd.com/read/29068981/human-herpes-virus-8-unrelated-primary-effusion-lymphoma-like-lymphoma-presenting-with-cardiac-tamponade-a-case-report
#13
Hee-Jun Kim, Kyoungyul Lee, Chang-Hwan Yoon, Soo-Mee Bang
RATIONALE: Primary effusion lymphoma (PEL) is a rare disease of lymphomatous effusion in the body cavities in the absence of detectable mass and lymphadenopathy. PEL is predominantly related to the immunosuppressed patients infected with human herpes virus 8 (HHV-8). PEL-like lymphoma is negative for HHV-8 and human immunodeficiency virus (HIV) unlike PEL. The pathogenesis and prognosis of PEL-like lymphoma are unclear and there is no established treatment yet. PATIENT CONCERNS: A 73-year-old male patient was admitted for evaluation of dyspnea on exertion with 1-week duration...
October 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29067338/patients-and-caregivers-views-on-conversations-and-shared-decision-making-in-diagnostic-testing-for-alzheimer-s-disease-the-abide-project
#14
Marleen Kunneman, Ruth Pel-Littel, Femke H Bouwman, Freek Gillissen, Niki S M Schoonenboom, Jules J Claus, Wiesje M van der Flier, Ellen M A Smets
INTRODUCTION: This study aims to assess patients' and caregivers' views on and experiences with (1) decisions about diagnostic testing for Alzheimer's disease (AD) and (2) receiving test results. METHODS: We conducted separate focus groups with patients from three hospitals who underwent diagnostic testing for AD (N = 11) and their caregivers (N = 11). Audio recordings were transcribed verbatim and analyzed using MaxQDA. RESULTS: Patients and caregivers preferred and perceived active involvement in decision making, but the decision to initiate diagnostic testing seems to be made before the clinician-patient encounter...
September 2017: Alzheimer's & Dementia: Translational Research & Clinical Interventions
https://www.readbyqxmd.com/read/29067337/clinicians-views-on-conversations-and-shared-decision-making-in-diagnostic-testing-for-alzheimer-s-disease-the-abide-project
#15
Marleen Kunneman, Ellen M A Smets, Femke H Bouwman, Niki S M Schoonenboom, Marissa D Zwan, Ruth Pel-Littel, Wiesje M van der Flier
INTRODUCTION: This study explores clinicians' views on and experiences with when, how, and by whom decisions about diagnostic testing for Alzheimer's disease are made and how test results are discussed with patients. METHODS: Following a preparatory focus group with 13 neurologists and geriatricians, we disseminated an online questionnaire among 200 memory clinic clinicians. RESULTS: Respondents were 95 neurologists and geriatricians (response rate 47...
September 2017: Alzheimer's & Dementia: Translational Research & Clinical Interventions
https://www.readbyqxmd.com/read/29054669/impact-of-copper-sulfate-application-at-an-urban-brazilian-reservoir-a-geostatistical-and-ecotoxicological-approach
#16
P R Leal, V Moschini-Carlos, J C López-Doval, J P Cintra, J K Yamamoto, M D Bitencourt, R F Santos, G C Abreu, M L M Pompêo
A landscape ecotoxicology approach was used to assess the spatial distribution of copper in the recent bottom sediment (surficial sediment) of a Brazilian subtropical reservoir (the Guarapiranga reservoir) and its potential ecotoxicological impacts on the reservoir ecosystem and the local society. We discuss the policies and procedures that have been employed for the management of this reservoir over the past four decades. Spatial heterogeneity in the reservoir was evaluated by means of sampling design and statistical analysis based on kriging spatial interpolation...
October 17, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29052134/kaposi-s-sarcoma-associated-herpesvirus-epidemiology-and-molecular-biology
#17
Shasha Li, Lei Bai, Jiazhen Dong, Rui Sun, Ke Lan
Kaposi's sarcoma-associated herpesvirus (KSHV), also known as Human herpesvirus 8 (HHV-8), is a member of the lymphotropic gammaherpesvirus subfamily and a human oncogenic virus. Since its discovery in AIDS-associated KS tissues by Drs. Yuan Chang and Patrick Moore, much progress has been made in the past two decades. There are four types of KS including classic KS, endemic KS, immunosuppressive therapy-related KS, and AIDS-associated KS. In addition to KS, KSHV is also involved in the development of primary effusion lymphoma (PEL) and certain types of multicentric Castleman's disease...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29048633/in%C3%A2-vitro-and-in%C3%A2-vivo-anti-primary-effusion-lymphoma-activities-of-fucoidan-extracted-from-cladosiphon-okamuranus-tokida
#18
Chie Ishikawa, Naoki Mori
Primary effusion lymphoma (PEL) caused by Kaposi's sarcoma-associated herpesvirus (KSHV) is characterized by lymphomatous effusion in body cavities and poor prognosis. There is still no effective treatment for PEL. Fucoidan, a major sulfated polysaccharide isolated from brown seaweeds, has an attractive array of bioactivities such as cancer inhibition. However, the effects of fucoidan on PEL cells remain unclear. We investigated the anti-PEL effects of fucoidan obtained from Cladosiphon okamuranus Tokida cultivated in Okinawa...
September 20, 2017: Oncology Reports
https://www.readbyqxmd.com/read/29026448/newborn-genome-wide-dna-methylation-in-association-with-pregnancy-anxiety-reveals-a-potential-role-for-gabbr1
#19
Elise Beau Vangeel, Ehsan Pishva, Titia Hompes, Daniel van den Hove, Diether Lambrechts, Karel Allegaert, Kathleen Freson, Benedetta Izzi, Stephan Claes
BACKGROUND: There is increasing evidence for the role of prenatal stress in shaping offspring DNA methylation and disease susceptibility. In the current study, we aimed to identify genes and pathways associated with pregnancy anxiety using a genome-wide DNA methylation approach. METHODS: We selected 22 versus 23 newborns from our Prenatal Early Life Stress (PELS) cohort, exposed to the lowest or highest degree of maternal pregnancy anxiety, respectively. Cord blood genome-wide DNA methylation was assayed using the HumanMethylation450 BeadChip (HM450, n = 45) and candidate gene methylation using EpiTYPER (n = 80)...
2017: Clinical Epigenetics
https://www.readbyqxmd.com/read/29021516/human-herpesvirus-8-unrelated-primary-effusion-lymphoma-like-lymphoma-following-tyrosine-kinase-inhibitor-treatment-for-chronic-myelogenous-leukemia
#20
Minoru Kojima, Naoya Nakamura, Jun Amaki, Hiroki Numata, Masashi Miyaoka, Tadashi Motoori, Koshi Matsumoto, Kiyoshi Ando
A 69-year-old man was diagnosed with chronic myelogenous leukemia (CML) and treated with dasatinib. After two years on dasatinib, the patient achieved complete molecular response, but dasatinib treatment was discontinued due to exacerbation of pleural effusion. Nilotinib and imatinib were started but stopped due to an increase in pleural effusion. Thoracentesis was performed and he was diagnosed with human herpesvirus 8-unrelated primary effusion lymphoma (PEL)-like lymphoma. Complex chromosomal abnormality, including BCL6 rearrangement, was found on chromosome analysis...
2017: Journal of Clinical and Experimental Hematopathology: JCEH
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