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https://www.readbyqxmd.com/read/28098869/core%C3%A2-shell-lipid-polymer-nanoparticles-for-combined-chemo%C3%A2-and-gene-therapy-of-childhood-head-and-neck-cancers
#1
Tiesong Zhang, Jing Ma, Chao Li, Ken Lin, Fan Lou, Hongchao Jiang, Yingqin Gao, Yanli Yang, Cheng Ming, Biao Ruan
Pediatric head and neck cancers account for overall 12% of all pediatric cancers. Despite recent advances in therapeutic modalities, children with tumor metastasis have poor prognosis. Therefore, there is an unmet need for new and effective treatment modalities for pediatric head and neck cancers. The present study describes a simple and efficient method for fabrication of cationic lipid‑polymer hybrid nanoparticles (CLPNs) for co‑delivery of cisplatin (CDDP) and DNA (CDDP/DNA CLPNs) for the therapy of childhood head and neck cancers...
January 13, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28055201/tumor-microenvironment-sensitive-liposomes-penetrate-tumor-tissue-via-attenuated-interaction-of-the-extracellular-matrix-and-tumor-cells-and-accompanying-actin-depolymerization
#2
Satoko Suzuki, Shoko Itakura, Ryo Matsui, Kayoko Nakayama, Takayuki Nishi, Akinori Nishimoto, Susumu Hama, Kentaro Kogure
Delivery of anticancer drugs into tumor cores comprised of malignant cancer cells can result in potent therapeutic effects. However, conventional nanoparticle-based drug delivery systems used for cancer therapy often exhibit inefficient tumor-penetrating properties, thus, suggesting the need to improve the functional design of such systems. Herein, we focus on the interactions between cancer cells and the extracellular matrix (ECM) and demonstrate that liposomes modified with slightly acidic pH-sensitive peptide (SAPSp-lipo) can penetrate in vivo tumor tissue and in vitro spheroids comprised of cancer cells and ECM...
January 19, 2017: Biomacromolecules
https://www.readbyqxmd.com/read/28033704/disruption-of-mycobacterial-aftb-results-in-complete-loss-of-terminal-%C3%AE-1-%C3%A2-2-arabinofuranose-residues-of-lipoarabinomannan
#3
Monika Jankute, Luke J Alderwick, Stephan Noack, Natacha Veerapen, Jérôme Nigou, Gurdyal S Besra
Lipoarabinomannan (LAM) and arabinogalactan (AG) are the two major mycobacterial cell wall (lipo)polysaccharides, which contain a structurally similar arabinan domain that is highly branched and assembled in a stepwise fashion by variety of arabinofuranosyltransferases (ArafT). In addition to playing an essential role in mycobacterial physiology, LAM and its biochemical precursor lipomannan possess potent immunomodulatory activities that affect the host immune response. In the search of additional mycobacterial ArafTs that participate in the synthesis of the arabinan segment of LAM, we disrupted aftB (MSMEG_6400) in Mycobacterium smegmatis...
December 5, 2016: ACS Chemical Biology
https://www.readbyqxmd.com/read/28027231/the-lipo-body-lift-a-new-circumferential-body-contouring-technique-useful-after-bariatric-surgery
#4
Nicolas Bertheuil, Benoit Chaput, Antoine De Runz, Paul Girard, Raphael Carloni, Eric Watier
BACKGROUND: After bariatric surgery, lifting of the lower body involves a contouring technique used to achieve optimal lower trunk reconstruction. The authors describe an innovative procedure applicable after massive weight loss: the lipo-body lift method. The authors describe their experience with this novel, safe procedure. METHODS: Twenty-five abdominal body-contouring reconstructions following massive weight loss were treated by means of circumferential lipo-body lift...
January 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28002510/caspase-3-expression-and-plasma-level-of-fas-ligand-as-apoptosis-biomarkers-in-inflammatory-endotoxemic-lung-injury
#5
Raluca Ştefania Fodor, Anca Meda Georgescu, Bianca Liana Grigorescu, Adrian Dan Cioc, Mihaly Veres, Ovidiu Simion Cotoi, Pal Fodor, Sanda Maria Copotoiu, Leonard Azamfirei
OBJECTIVE: The objective of this study is to evaluate if the immunohistochemical expression of a pulmonary apoptosis marker and plasma level of Fas ligand (FasL) correlates with the dose- and time-dependent severity of lung injury, induced by the administration of lipo-polysaccharide (LPS) in an endotoxemic rat model. MATERIALS AND METHODS: Our study included 30 male Wistar rats, randomly divided into three groups: one control group (n=6) and two experimental groups (n=12÷group), in whom we induced endotoxemia by intraperitoneal injection of progressively increasing doses of LPS (5, 10 mg÷kg)...
2016: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/27991598/using-anti-poly-ethylene-glycol-bioparticles-for-the-quantitation-of-pegylated-nanoparticles
#6
Yuan-Chin Hsieh, Ta-Chun Cheng, Hsin-Ell Wang, Jia-Je Li, Wen-Wei Lin, Chien-Chiao Huang, Chih-Hung Chuang, Yeng-Tseng Wang, Jaw-Yuan Wang, Steve R Roffler, Kuo-Hsiang Chuang, Tian-Lu Cheng
Attachment of polyethylene glycol (PEG) molecules to nanoparticles (PEGylation) is a widely-used method to improve the stability, biocompatibility and half-life of nanomedicines. However, the evaluation of the PEGylated nanomedicine pharmacokinetics (PK) requires the decomposition of particles and purification of lead compounds before analysis by high performance liquid chromatography (HPLC), mass spectrometry, etc. Therefore, a method to directly quantify un-decomposed PEGylated nanoparticles is needed. In this study, we developed anti-PEG bioparticles and combined them with anti-PEG antibodies to generate a quantitative enzyme-linked immunosorbent assay (ELISA) for direct measurement of PEGylated nanoparticles without compound purification...
December 19, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27983855/nir-light-activated-drug-release-for-synergetic-chemo-photothermal-therapy
#7
Ahu Yuan, Wei Huan, Xiang Liu, Zhicheng Zhang, Yifan Zhang, Jinhui Wu, Yiqiao Hu
Nanocarriers like PEGylated liposomes have achieved enhanced drug accumulation in tumors and reduced systemic side effects, but failed to actively release the carried drug into cancer cells. To obtain improved therapeutic efficacy, we designed a novel liposome that was inserted by the amphiphilic agent PEG-IR780-C13 (PIC-Lipo) and encapsulated therapeutic agent doxorubicin (DOX), termed as DOX@PIC-Lipo. Upon NIR laser irradiation, the novel liposomes could generate hyperthermia and facilitate the release of encapsulated DOX from PIC-Lipo, which were confirmed by photothermal curves and the DOX release assay in vitro, respectively...
January 3, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/27981593/determination-of-isoflavone-genistein-and-daidzein-concentration-of-soybean-seed-as-affected-by-environment-and-management-inputs
#8
Randy Laurenz, Pavani Tumbalam, Seth Naeve, Kurt D Thelen
BACKGROUND: Isoflavones, such as genistein and daidzein, are produced in soybean seed (Glycine max (L.) Merr.) and may be associated with health benefits in the human diet. More research is required to determine the effect of agronomic soybean treatments on isoflavone concentration. In this study from 2012 to 2014 at Michigan State University and Breckenridge locations, we have have evaluated agronomic input management systems which are marketed to increase or protect potential soybean grain yield, including: nitrogen fertilization; herbicide-defoliant; foliar applied fertilizer; a biological-based foliar application; foliar applied fungicide; foliar applied insecticide; a seed applied fungicide; and a maximized seed treatment that included fungicide and insecticide as well as an inoculant and lipo-chitooligosaccharide nodulation promoter; for their effect on soybean seed genistein and daidzein concentrations...
December 16, 2016: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/27975504/steam-and-fermentation-processing-could-exert-the-anti-oxidant-and-anti-inflammatory-activities-of-gastrodiae-rhizoma-in-lipo-poly-saccharide-induced-mice
#9
A R Lee, J Y Lee, M Y Kim, M R Shin, S H Shin, S S Roh
No abstract text is available yet for this article.
December 2016: Planta Medica
https://www.readbyqxmd.com/read/27925179/hepatoma-cell-functions-modulated-by-nek2-are-associated-with-liver-cancer-progression
#10
Sheng-Ming Wu, Syuan-Ling Lin, Kang-Yun Lee, Hsiao-Chi Chuang, Po-Hao Feng, Wan-Li Cheng, Chia-Jung Liao, Hsiang-Cheng Chi, Yang-Hsiang Lin, Chung-Ying Tsai, Wei-Jan Chen, Chau-Ting Yeh, Kwang-Huei Lin
NEK2 (NIMA-related expressed kinase 2) is a serine/threonine centrosomal kinase that acts as a critical regulator of centrosome structure and function. Aberrant NEK2 activities lead to failure in regulating centrosome duplication. NEK2 overexpression promotes tumorigenesis and is associated with poor prognosis in several cancers. Increased NEK2 expression during the late pathological stage has been detected in the Oncomine liver dataset and hepatocellular carcinoma (HCC) specimens. Elevated NEK2 protein is associated with poor overall survival in patients with HCC...
December 7, 2016: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/27922949/the-neurological-safety-of-an-epidurally-administered-lipo-pge1-agonist-in-rats
#11
Eunjoo Choi, Sun Min Im, Hyung-Seok Yoo, Francis Sahngun Nahm, Yang Hyun Kim, Gheeyoung Choe, Pyung Bok Lee
BACKGROUND AND OBJECTIVE: Liposomal prostaglandin E1 (Lipo-PGE1) can inhibit platelet aggregation and vasodilatation and has been found to be therapeutic in ischemia and spinal diseases including stenosis. However, the neurologic safety of epidural administration of lipo-PGE1 requires further study. We investigated the neurotoxicity of epidurally administered lipo-PGE1 agonist in rats. METHODS: Twenty-seven rats were randomly divided into three groups: Epidural isotonic sodium chloride solution administration (negative control, group N, n = 9); epidural lipo-PGE1 agonist (group L, n = 9); and epidural alcohol (positive control, group A, n = 9)...
January 2017: Regional Anesthesia and Pain Medicine
https://www.readbyqxmd.com/read/27893636/facial-contouring-by-targeted-restoration-of-facial-fat-compartment-volume-the-mid-face
#12
Wenjin Wang, Yun Xie, Ru-Lin Huang, Jia Zhou, Herrler Tanja, Peijuan Zhao, Chen Cheng, Sizheng Zhou, Lee L Q Pu, Qingfeng Li
BACKGROUND: Recent anatomical findings have suggested that facial fat distribution is complex and changes with age. Here, we developed a grafting technique based on the physiological distribution and volume changes of facial fat compartments to achieve a youthful and natural-looking face. METHODS: Forty cadaveric hemifaces were used for the dissection of fat compartments and neurovascular structures in the mid-face area. Seventy-eight patients were treated for cheek atrophy using our targeted restoration of mid-face fat compartment volume...
November 21, 2016: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/27886006/semi-automated-extraction-and-characterization-of-stromal-vascular-fraction-using-a-new-medical-device
#13
Alexander Hanke, Lukas Prantl, Carina Wenzel, Michael Nerlich, Gero Brockhoff, Markus Loibl, Sebastian Gehmert
INTRODUCTION: The stem cell rich Stromal Vascular Fraction (SVF) can be harvested by processing lipo-aspirate or fat tissue with an enzymatic digestion followed by centrifugation. To date neither a standardised extraction method for SVF nor a generally admitted protocol for cell application in patients exists. A novel commercially available semi-automated device for the extraction of SVF promises sterility, consistent results and usability in the clinical routine. The aim of this work was to compare the quantity and quality of the SVF between the new system and an established manual laboratory method...
November 23, 2016: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/27884155/long-chain-polyunsaturated-fatty-acids-lcpufas-and-nordihydroguaiaretic-acid-ndga-modulate-metabolic-and-inflammatory-markers-in-a-spontaneous-type-2-diabetes-mellitus-model-stillman-salgado-rats
#14
Alejandro Dain, Gaston Repossi, Gustavo T Diaz-Gerevini, Jairam Vanamala, Undurti N Das, Aldo R Eynard
BACKGROUND: Diabetes mellitus (DM) is a complex disease with alterations in metabolic and inflammatory markers. Stillman Salgado rats (eSS) spontaneously develop type 2 DM by middle age showing progressive impairment of glucose tolerance with hyperglycemia, hypertriglyceridemia and hyperinsulinemia. We analyzed the effects of supplementation of ω-3 and ω-6 polyunsaturated fatty acids (PUFAs) with or without nordihydroguaiaretic acid (NDGA) added, an antioxidant and lipoxygenase inhibitor, on metabolic and inflammatory parameters in eSS rats to evaluate whether they can delay development and/or prevent progression of DM...
November 25, 2016: Lipids in Health and Disease
https://www.readbyqxmd.com/read/27879642/curcumin-and-boswellia-serrata-modulate-the-glyco-oxidative-status-and-lipo-oxidation-in-master-athletes
#15
Nino Cristiano Chilelli, Eugenio Ragazzi, Romina Valentini, Chiara Cosma, Stefania Ferraresso, Annunziata Lapolla, Giovanni Sartore
BACKGROUND: Chronic intensive exercise is associated with a greater induction of oxidative stress and with an excess of endogenous advanced glycation end-products (AGEs). Curcumin can reduce the accumulation of AGEs in vitro and in animal models. We examined whether supplementation with curcumin and Boswellia serrata (BSE) gum resin for 3 months could affect plasma levels of markers of oxidative stress, inflammation, and glycation in healthy master cyclists. METHODS: Forty-seven healthy male athletes were randomly assigned to Group 1, consisting of 22 subjects given a Mediterranean diet (MD) alone (MD group), and Group 2 consisted of 25 subjects given a MD plus curcumin and BSE (curcumin/BSE group)...
November 21, 2016: Nutrients
https://www.readbyqxmd.com/read/27864687/omega-3-fatty-acid-epa-improves-regenerative-capacity-of-mouse-skeletal-muscle-cells-exposed-to-saturated-fat-and-inflammation
#16
Amarjit Saini, Adam P Sharples, Nasser Al-Shanti, Claire E Stewart
Sarcopenic obesity is characterised by high fat mass, low muscle mass and an elevated inflammatory environmental milieu. We therefore investigated the effects of elevated inflammatory cytokine TNF-α (aging/obesity) and saturated fatty acid, palmitate (obesity) on skeletal muscle cells in the presence/absence of EPA, a-3 polyunsaturated fatty acid with proposed anti-inflammatory, anti-obesity activities. In the present study we show that palmitate was lipotoxic, inducing high levels of cell death and blocking myotube formation...
November 18, 2016: Biogerontology
https://www.readbyqxmd.com/read/27846795/quantitative-modelling-of-legume-root-nodule-primordium-induction-by-a-diffusive-signal-of-epidermal-origin-that-inhibits-auxin-efflux
#17
Eva E Deinum, Wouter Kohlen, René Geurts
BACKGROUND: Rhizobium nitrogen fixation in legumes takes place in specialized organs called root nodules. The initiation of these symbiotic organs has two important components. First, symbiotic rhizobium bacteria are recognized at the epidermis through specific bacterially secreted lipo-chitooligosaccharides (LCOs). Second, signaling processes culminate in the formation of a local auxin maximum marking the site of cell divisions. Both processes are spatially separated. This separation is most pronounced in legumes forming indeterminate nodules, such as model organism Medicago truncatula, in which the nodule primordium is formed from pericycle to most inner cortical cell layers...
November 15, 2016: BMC Plant Biology
https://www.readbyqxmd.com/read/27833274/effect-of-external-volume-expansion-on-the-survival-of-fat-grafts
#18
Raghuveer Reddy, Subramania Iyer, Mohit Sharma, Sundeep Vijayaraghavan, P Kishore, Jimmy Mathew, A K K Unni, P Reshmi, Rakesh Sharma, Chaya Prasad
INTRODUCTION: External volume expansion (EVE) is one method, which has been utilised for increasing the survival of adipose tissue grafts. EVE releases positive pressure from the graft and also induces intense levels of edema that decreases diffusion of metabolites essential for graft survival initially. The ideal timing of external volume expansion in relation to the injection of the fat to facilitate survival is not yet clear. AIMS AND OBJECTIVES: This study was undertaken to evaluate and compare the efficacy of external volume expansion applied at variable time points in relation to the injection of the fat...
May 2016: Indian Journal of Plastic Surgery: Official Publication of the Association of Plastic Surgeons of India
https://www.readbyqxmd.com/read/27793719/enabling-techniques-in-the-search-for-new-antibiotics-combinatorial-biosynthesis-of-sugar-containing-antibiotics
#19
REVIEW
Je Won Park, Sang-Jip Nam, Yeo Joon Yoon
Nature has a talent for inventing a vast number of natural products, including hybrids generated by blending different scaffolds, resulting in a myriad of bioactive chemical entities. Herein, we review the highlights and recent trends (2010 to 2016) in the combinatorial biosynthesis of sugar-containing antibiotics where nature's structural diversification capabilities are exploited to enable the creation of new anti-infective and anti-proliferative drugs. In this review, we describe the modern combinatorial biosynthetic approaches for polyketide synthase-derived complex and aromatic polyketides, non-ribosomal peptide synthetase-directed lipo-/glycopeptides, aminoglycosides, nucleoside antibiotics, and alkaloids, along with their therapeutic potential...
October 25, 2016: Biochemical Pharmacology
https://www.readbyqxmd.com/read/27780298/manufacture-and-incorporation-of-liposome-entrapped-ethylenediaminetetraacetic-acid-into-model-miniature-gouda-type-cheese-and-subsequent-effect-on-starter-viability-ph-and-moisture-content
#20
Lisa N McAuliffe, Kieran N Kilcawley, Jeremiah J Sheehan, Paul L H McSweeney
Liposome-encapsulated ethylenediaminetetraacetic acid (EDTA) was incorporated into a model miniature Gouda-type cheese (20 g) in order to assess its effect on rennet gelation, starter viability, pH, and moisture content. EDTA was encapsulated within 2 different food-grade proliposome preparations, Pro-Lipo Duo and Pro-Lipo C (50% and 40% unsaturated soybean phospholipids and 50% and 60% aqueous medium, respectively), using the following high-shear technologies: Ultra-Turrax (5000 rpm), 2-stage homogenization (345 bar), or microfluidization (690 bar)...
October 25, 2016: Journal of Food Science
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