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https://www.readbyqxmd.com/read/27922949/the-neurological-safety-of-an-epidurally-administered-lipo-pge1-agonist-in-rats
#1
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)...
December 5, 2016: Regional Anesthesia and Pain Medicine
https://www.readbyqxmd.com/read/27893636/facial-contouring-by-targeted-restoration-of-facial-fat-compartment-volume-the-mid-face
#2
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
#3
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
#4
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
#5
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
#6
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
#7
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
#8
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
#9
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
#10
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
https://www.readbyqxmd.com/read/27775818/rifaximin-has-no-effect-on-hemodynamics-in-decompensated-cirrhosis-a-randomized-double-blind-placebo-controlled-trial
#11
Nina Kimer, Julie Steen Pedersen, Troels Malte Busk, Lise Lotte Gluud, Lise Hobolth, Aleksander Krag, Søren Møller, Flemming Bendtsen
BACKGROUND AND RATIONALE: Decompensated cirrhosis is characterized by disturbed systemic and splanchnic hemodynamics. Bacterial translocation from the gut is considered the key driver in this process. Intestinal decontamination with rifaximin may improve hemodynamics. This double-blind, randomized, controlled trial investigates the effects of rifaximin on hemodynamics, renal function and vasoactive hormones. METHODS: We randomized 54 stable out-patients with cirrhosis and ascites to rifaximin 550 mg BD (n=36) or placebo BD (n=18)...
October 24, 2016: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/27744705/spectroscopic-identification-of-the-au-c-bond-formation-upon-electro-reduction-of-an-aryl-diazonium-salt-on-gold
#12
Limin Guo, Lipo Ma, Yelong Zhang, Xun Cheng, Ye Xu, Jin Wang, Erkang Wang, Zhangquan Peng
Electro-reduction of aryl diazonium salts on gold can produce organic films that are more robust than their analogous self-assembled monolayers formed from chemical adsorption of organic thiols on gold. However, whether or not the enhanced stability is due to the Au-C bond formation remains debated. In this work, we report the electro-reduction of an aryl diazonium salt of 4,4'-disulfanediyldibenzenediazonium on gold forming a multilayer of Au-(Ar-S-S-Ar)n, which can be further degraded to a monolayer of Au-Ar-S- by electrochemical cleavage of the S-S moieties within the multilayer...
October 15, 2016: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/27736810/egf-receptor-targeted-lipo-oligocation-polyplexes-for-antitumoral-sirna-and-mirna-delivery
#13
Katharina Müller, Philipp M Klein, Philipp Heissig, Andreas Roidl, Ernst Wagner
Antitumoral siRNA and miRNA delivery was demonstrated by epidermal growth factor receptor (EGFR) targeted oligoaminoamide polyplexes. For this purpose, the T-shaped lipo-oligomer 454 was used to complex RNA into a core polyplex, which was subsequently functionalized with the targeting peptide ligand GE11 via a polyethylene glycol (PEG) linker. To this end, free cysteines on the surface of 454 polyplex were coupled with a maleimide-PEG-GE11 reagent (Mal-GE11). Resulting particles with sizes of 120-150 nm showed receptor-mediated uptake into EGFR-positive T24 bladder cancer cells, MDA-MB 231 breast cancer cells and Huh7 liver cancer cells...
October 13, 2016: Nanotechnology
https://www.readbyqxmd.com/read/27734055/precise-redox-sensitive-cleavage-sites-for-improved-bioactivity-of-sirna-lipopolyplexes
#14
Philipp Michael Klein, Sören Reinhard, Dian-Jang Lee, Katharina Müller, Daniela Ponader, Laura Hartmann, Ernst Wagner
Lipo-oligomers have been proven as potent siRNA carriers based on stable electrostatic and hydrophobic complex formation and endosomal membrane destabilization. Although high stability of siRNA polyplexes is desirable in the extracellular space and cellular uptake, intracellular disassembly is important for the cytosolic release of siRNA and RNA-induced silencing complex formation. To improve the release, bioreducible sequence-defined lipo-oligomers were synthesized by solid-phase assisted synthesis using the disulfide building block Fmoc-succinoyl-cystamine for precise positioning of a disulfide unit between a lipophilic diacyl (bis-myristyl, bis-stearyl or bis-cholestanyl) domain and an ionizable oligocationic siRNA binding unit...
October 13, 2016: Nanoscale
https://www.readbyqxmd.com/read/27729393/ultrastructural-organisation-of-hcv-from-the-bloodstream-of-infected-patients-revealed-by-electron-microscopy-after-specific-immunocapture
#15
Eric Piver, Audrey Boyer, Julien Gaillard, Anne Bull, Elodie Beaumont, Philippe Roingeard, Jean-Christophe Meunier
OBJECTIVE: HCV particles are associated with very low-density lipoprotein components in chronically infected patients. These hybrid particles, or 'lipo-viro particles' (LVPs), are rich in triglycerides, and contain the viral RNA, the capsid protein, E1E2 envelope glycoproteins and apolipoproteins B and E. However, their specific ultrastructural organisation has yet to be determined. We developed a strategy for the preparation of any viral sample that preserves the native structure of the LVPs, facilitating their precise morphological characterisation...
October 11, 2016: Gut
https://www.readbyqxmd.com/read/27708340/activation-and-increase-of-radio-sensitive-cd11b-recruited-kupffer-cells-macrophages-in-diet-induced-steatohepatitis-in-fgf5-deficient-mice
#16
Hiroyuki Nakashima, Masahiro Nakashima, Manabu Kinoshita, Masami Ikarashi, Hiromi Miyazaki, Hiromi Hanaka, Junko Imaki, Shuhji Seki
We have recently reported that Kupffer cells consist of two subsets, radio-resistant resident CD68+ Kupffer cells and radio-sensitive recruited CD11b+ Kupffer cells/macrophages (Mφs). Non-alcoholic steatohepatitis (NASH) is characterized not only by hepatic steatosis but also chronic inflammation and fibrosis. In the present study, we investigated the immunological mechanism of diet-induced steatohepatitis in fibroblast growth factor 5 (FGF5) deficient mice. After consumption of a high fat diet (HFD) for 8 weeks, FGF5 null mice developed severe steatohepatitis and fibrosis resembling human NASH...
October 6, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27700619/translating-nanoparticulate-personalized-cancer-vaccines-into-clinical-applications-case-study-with-rna-lipoplexes-for-the-treatment-of-melanoma
#17
Stephan Grabbe, Heinrich Haas, Mustafa Diken, Lena M Kranz, Peter Langguth, Ugur Sahin
The development of nucleic acid based vaccines against cancer has gained considerable momentum through the advancement of modern sequencing technologies and on novel RNA-based synthetic drug formats, which can be readily adapted following identification of every patient's tumor-specific mutations. Furthermore, affordable and individual 'on demand' production of molecularly optimized vaccines should allow their application in large groups of patients. This has resulted in the therapeutic concept of an active personalized cancer vaccine, which has been brought into clinical testing...
October 2016: Nanomedicine
https://www.readbyqxmd.com/read/27700227/the-response-of-soybean-to-nod-factors-and-a-bacteriocin
#18
Kaberi Gautam, Timothy D Schwinghamer, Donald L Smith
Microbe-to-plant signals can enhance the growth of a wide range of crops. The responses by soybean (Glycine max var. 91M01) to two signal molecules were investigated: Bradyrhizobium japonicum 532C lipo-chitooligosaccharide (Nod Bj V [C:18, MeFuc]) (LCO); and Bacillus thuringiensis strain NEB17 bacteriocin thuricin 17 (Th17). The objective was to assess and quantify the response by soybean, in terms of factors that contribute to yield, to the experimental signal molecules in germination experiments and field experiments...
October 4, 2016: Plant Signaling & Behavior
https://www.readbyqxmd.com/read/27695439/encapsulation-into-stealth-liposomes-enhances-the-antitumor-action-of-recombinant-cratylia-mollis-lectin-expressed-in-escherichia-coli
#19
Cássia R A da Cunha, Luís C N da Silva, Fábio J F Almeida, Milena S Ferraz, Nathalia Varejão, Marina F de Souza Cartaxo, Rita de Cássia M de Miranda, Francisco C A de Aguiar, Noemia P da Silva Santos, Luana C B B Coelho, Nereide S Santos-Magalhães, Maria T Dos Santos Correia
This study evaluated the in vivo antitumor potential of the recombinant lectin from seeds of Cratylia mollis (rCramoll) expressed in Escherichia coli, free or encapsulated in stealth liposomes, using mice transplanted with sarcoma 180. rCramoll-loaded stealth liposomes (rCramoll-lipo) were formulated by hydration of the lipid film followed by cycles of freezing and thawing, and about 60% of rCramoll was encapsulated. This novel preparation showed particle size, polydispersity index, and pH suitable for the evaluation of antitumor activity in vivo...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27687162/biophysical-dissection-of-schistosome-septins-insights-into-oligomerization-and-membrane-binding
#20
Ana Eliza Zeraik, Margarita Staykova, Marina Gabriel Fontes, Indrė Nemuraitė, Roy Quinlan, Ana Paula Ulian Araújo, Ricardo DeMarco
Septins are GTP-binding proteins that are highly conserved among eukaryotes and which are usually membrane-associated. They have been linked to several critical cellular functions such as exocytosis and ciliogenesis, but little mechanistic detail is known. Their assembly into filaments and membrane binding properties are incompletely understood and that is specially so for non-human septins where such information would offer therapeutic potential. In this study we use Schistosoma mansoni, exhibiting just four septin genes, as a simpler model for characterizing the septin structure and organization...
September 26, 2016: Biochimie
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