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Results 551 - 600 of 1574
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Gold Michael - - 2009
BACKGROUND: The number of dermal fillers has expanded dramatically; clinicians can benefit from practical information on their optimal use. AIMS: To review key determinants of dermal filler performance, to discuss technical considerations, and to illustrate these factors based on the author's clinical experience. METHODS: Current literature pertaining to the physicochemical ...
Neves-Petersen Maria Teresa - - 2010
Modification of hyaluronic acid (HA) with aryl succinic anhydrides results in new biomedical properties of HA as compared to non-modified HA, such as more efficient skin penetration, stronger binding to the skin, and the ability to blend with hydrophobic materials. In the present study, hyaluronic acid has been derivatised with ...
Reynolds Jackie - - 2009
Acid-fastness is an uncommon characteristic shared by the genera Mycobacterium (Section 10A) and Nocardia. Because of this feature, this stain is extremely helpful in identification of these bacteria. Although Gram positive, acid-fast bacteria do not take the crystal violet into the wall well, appearing very light purple rather than the ...
Lu Xiaowei X Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, - - 2009
The chemical synthesis of a hyaluronic acid decasaccharide using the preactivation-based chemoselective glycosylation strategy is described. Assembly of large oligosaccharides is generally challenging due to the increased difficulties in both glycosylation and deprotection. Indeed, the same building blocks previously employed for hyaluronic acid hexasaccharide syntheses failed to yield the desired ...
Hartmann Vanessa - - 2010
Volume augmentation of the back of the hand is a new technique which is not yet often employed. We describe the treatment of two patients who received hyaluronic acid products produced by Q-Med (Macrolane VRF20, Restylane Vital and Vital Light). The injections of Macrolane VRF 20 were done by feathering ...
Khan Farhan Anwar - - 2010
Tissue samples were collected at random from cattle (Bos taurus) and buffalo (Bubalus bubalis) from an abattoir of the district of Lahore and were analyzed for the presence of Mycobacterium avium subsp. paratuberculosis and Mycobacterium bovis through acid-fast staining and polymerase chain reaction (PCR). Body condition of animals and diarrhea ...
Wesley Naissan O - - 2009
There are currently more than 20 FDA-approved fillers in the United States (U.S.), noteworthy considering that it was only six years ago that the first hyaluronic acid filler was approved. The pace of development of filler substances in the last few years has been extremely rapid. The authors review the ...
Beer Kenneth - - 2009
Until recently, the use of dermal fillers was limited in the United States by the small number of products approved by the Food and Drug Administration. The products now approved for use in the United States have opened up the range of possibilities for combinations of products that are synergistic ...
Jones Derek H - - 2009
Today, an impressive array of injectable dermal fillers for facial soft-tissue augmentation is available in the United States. These agents, most of which were introduced in the last half decade, represent a variety of semipermanent and permanent fillers across several categories. Physicians can choose between semipermanent fillers, such as hyaluronic ...
Zheng Ling L Division of Gastroenterology, Washington University, St Louis, Missouri, - - 2009
The protective component of the host response to dextran sodium sulfate (DSS)-induced colitis in the mouse is mediated through the activation of Toll-like receptor (TLR) 4, the induction of cyclooxygenase (COX)-2, and prostaglandin E(2) production. TLR4 ligands include bacterial lipopolysaccharide and hyaluronic acid, a component of the extracellular matrix. Our ...
Pedroso José Eduardo de Sá - - 2009
Hormone plays an important role in the larynx. Among other substances, vocal folds contain hyaluronic acid, which tissue concentration may vary according to hormone action. AIM: the objective of this study is to analyze hyaluronic acid concentration in the vocal folds during estral and gravidic-puerperal cycles. MATERIALS AND METHODS: Experimental ...
Kaplan Lee D - - 2009
BACKGROUND: Partial-thickness articular cartilage lesions occur with knee trauma and may progress to osteoarthritis. This study evaluates the effectiveness of hyaluronic acid on cartilage healing after acute knee injury in sheep. HYPOTHESIS: Early administration of hyaluronic acid to an acute cartilage injury will prevent chondrocyte death and improve cartilage metabolism. ...
Sonoyama Kei - - 2009
Although hibernating mammals wake occasionally to eat during torpor, this period represents a state of fasting. Fasting is known to alter the gut microbiota in nonhibernating mammals; therefore, hibernation may also affect the gut microbiota. However, there are few reports of gut microbiota in hibernating mammals. The present study aimed ...
Gomez Christopher S CS Department of Urology, University of Miami Miller School of Medicine, Miami, Florida 33101, - - 2009
Molecular markers could aid prostate specific antigen, biopsy Gleason sum and clinical stage to provide accurate information on prostate cancer progression. HYAL-1 hyaluronidase and hyaluronic acid staining in prostatectomy specimens predicts biochemical recurrence. We examined whether hyaluronic acid and HYAL-1 staining in biopsy specimens predicts biochemical recurrence and correlates with ...
Fan Jinyong - - 2010
Hepatocyte-specific three-dimensional tissue-engineeringed scaffold plays an important role for developing bioartificial liver devices. In the present study, galactose moieties were covalently coupled with hyaluronic acid through ethylenediamine. Highly porous sponge composed of chitosan (CS) and galactosylated hyaluronic acid (GHA) was prepared by freezing-drying technique. The morphology of the scaffolds was ...
Finelli Ivana - - 2009
Hyaluronic acid is a polysaccharide with viscoelastic and mechanical properties that are crucial for the normal functioning of osteoarticular junctions. It is demonstrated that introduction of a hexadecyl side chain into HA yields an injectable polysaccharide capable of forming physical hydrogels, which are stable at very low polymer concentrations, whereas ...
Boeckaert C - - 2009
From the simultaneous accumulation of hydrogenation intermediates and the disappearance of Isotricha prostoma after algae supplementation, we suggested a role of this ciliate and/or its associated bacteria in rumen biohydrogenation of unsaturated fatty acids. The experiments described here evaluated the role of I. prostoma and/or its associated endogenous and exogenous ...
Poornima B - - 2009
The oleoresin of the Shorea robusta Gaertn is called as Shala niryasa, Kala, Sarja rasa which has the chemical constituents such as nor-triterpene, dammarenolic acid, asiatic acid, dipterocarpol, triterpenic acid, tannic acid and phenolic content and possesses antibacterial, analgesic and wound healing effect.The medicinal property of the plant is highly ...
Becker Lillian C - - 2009
Hyaluronic acid, sodium hyaluronate, and potassium hyaluronate function in cosmetics as skin conditioning agents at concentrations up to 2%. Hyaluronic acid, primarily obtained from bacterial fermentation and rooster combs, does penetrate to the dermis. Hyaluronic acid was not toxic in a wide range of acute animal toxicity studies, over several ...
Taban Mehryar - - 2009
PURPOSE: To report our preliminary experience using hyaluronic acid gel fillers as a nonsurgical alternative in the management of congenital eyelid malpositions. METHODS: In this retrospective interventional case series, 5 patients (10 eyes) with congenital eyelid malpositions, including eyelid retraction, ectropion, euryblepharon, epiblepharon, and abnormalities associated with a shallow orbit, ...
Kresge Nicole - - 2009
Enzymatic Carboxyl Activation of Amino Acids (Hoagland, M. B., Keller, E. B., and Zamecnik, P. C. (1956) J. Biol. Chem. 218, 345-358).
Dinkelaar Jasper - - 2009
An efficient synthetic strategy toward a hyaluronic acid (HA) tri-, penta-, and heptamer having a glucosamine-reducing end is reported. The synthesis is based on a glucuronate ester thioglycoside and a trifluoro-N-phenylimidate glucosamine building block. The HA-fragments are synthesized using an S-phenyl GlcN-GluA building block through a combination of chemoselective and ...
Taura F - - 2009
Tetrahydrocannabinol (THC), the psychoactive component of marijuana, is now regarded as a promising medicine because this cannabinoid has been shown to exert a variety of therapeutic activities. It has been demonstrated that THC is generated from the acidic precursor, tetrahydrocannabinolic acid (THCA) by nonenzymatic decarboxylation, and that THCA is biosynthesized ...
Mathieu Pierre - - 2009
Viscosupplementation is a symptomatic treatment of osteoarthritis (OA) intended to restore rheologic homeostasis of the synovial fluid by injecting hyaluronic acid intraarticularly. Despite the long history of this therapy, little is known about its mechanisms of action and differences between commercial preparations. We investigated the rheologic behavior of OA synovial ...
Beasley Karen L - - 2009
Over the past decade, the popularity of nonsurgical cosmetic procedures has increased exponentially. Last year, according to the American Society of Aesthetic Plastic Surgery, more than 5 million procedures were performed using cosmetic injectables such as botulinum toxin and dermal filling agents. According to the society's recent statistics, more than ...
Lacombe Victor - - 2009
Sculptra is a biocompatible, resorbable injectable filler composed of poly-L-lactic acid (PLLA). It falls in the class of a stimulatory filler that creates its effect through encouraging neocollagenesis when injected. As it differs from traditional, static fillers such as hyaluronic acid and collagen, it requires a special understanding of how ...
Arena Salvatore - - 2009
PURPOSE: Dextranomer/hyaluronic acid implantation is associated with a granulomatous inflammatory reaction, replaced by fibrosis. Appearance of myofibroblasts is considered a crucial event in fibrosis, and CD68 positive cells and other factors are implied in their activation. Mast cells are a source of these factors and tryptase can induce fibroblast to ...
Alkhraisat M H - - 2009
The improvement of calcium phosphate cement (CPC) cohesion is essential for its application in highly blood perfused regions. This study reports the effectiveness of hyaluronic acids of different molecular weights in the enhancement of brushite cement cohesion. The cement was prepared using a powder phase composed of a mixture of ...
Grogan Kirk A - - 2009
In the recent past, nonsurgical treatment of osteoarthritis was limited to rest, immobilization, physical therapy, activity modifications, nonsteroidal anti-inflammatory drugs, analgesics, weight loss, assistive devices for walking, and corticosteroid injections. Viscosupplementation is a welcome addition to the nonsurgical armamentarium available to physicians. It is used to introduce hyaluronic acid into ...
Fagnola Matteo - - 2009
Two experimental spectroscopic methods for the determination of the content of hyaluronic acid in solution are provided based on the formation of complexes between the hyaluronic acid and cationic dyes with sensitivity down to concentrations of either 0.25 or 2.5 microg/ml. These techniques were applied to commercial hydrophilic contact lenses ...
Grigoriu Bogdan - - 2009
We assessed comparatively the diagnostic value of two potential malignant pleural mesothelioma (MPM) markers: hyaluronic acid (HA) and soluble mesothelin. We measured serum and pleural fluid values of mesothelin and hyaluronic acid in 76 patients with MPM, 33 patients with pleural metastases of carcinomas (Mets group) and 27 patients with ...
Kim Jungju - - 2009
Hyaluronic acid is a natural glycosaminoglycan involved in biological processes. Low-molecular-weight hyaluronic acid (10 and 50 kDa)-based hydrogel was synthesized using derivatized hyaluronic acid. Hyaluronic acid was acrylated by two steps: (1) introduction of an amine group using adipic acid dihydrazide, and (2) acrylation by N-acryloxysuccinimide. Injectable hyaluronic acid-based hydrogel ...
Hedén Per - - 2009
Driven by the rising popularity of minimally invasive techniques, the demand for cosmetic procedures is increasing. Cosmetic body-shaping procedures can be categorized into those that remove tissue and those that add volume. This review focuses on the latter of these categories, particularly on the use of resorbable hyaluronic acid gels ...
Strauss Eric J - - 2009
Intra-articular hyaluronic acid viscosupplementation is gaining popularity as a treatment option in the nonoperative management of patients with osteoarthritis. Recent clinical studies have demonstrated that the anti-inflammatory, anabolic, and chondroprotective actions of hyaluronic acid reduce pain and improve patient function. With evidence mounting in support of the efficacy of this ...
Lu Xin-Liang - - 2009
OBJECTIVES: To investigate the effects of salvianolic acid B (Sal-B) on pancreatic damage in experimental chronic pancreatitis. METHODS: Chronic pancreatitis was induced by infusion of trinitrobenzene sulfonic acid into the pancreatic duct in male Sprague-Dawley rats. From the beginning of 5 weeks, the rats in group 2 were treated with ...
Meyer W - - 2009
Two different fluorescence stains, green: 5-hexadecanoylaminofluorescein, and red: BODIPY(R) 665/676 [(E,E)-3, 5-bis-(4-phenyl-1,3-butadienyl)-4,4-difluoro-4-bora-3a, 4a-diaza-s-indacene, produced good results regarding the demonstration of glycolipids, free fatty acids and triglycerides in mammalian skin material that had been embedded in a water miscible plastic resin (Technovit(R) 7100). In this way, functional aspects of specific structures ...
Narayanan Raja - - 2009
Various pharmacologic vitreolysis agents, including hyaluronidase, urea, plasmin, dispase, tissue plasminogen activator and chondroitinase have been tested. Pharmacologic vitreolysis can avoid the complications of surgery such as cataract, endophthalmitis, retinal hemorrhage, tear or detachment, and anesthesia related complications. Hyaluronan is a major macromolecule of vitreous. It is a long, unbranched ...
Adas Gokhan - - 2009
BACKGROUND: This study demonstrates the effect of hyaluronic acid-carboxymethylcellulose on the healing of colonic anastomosis. METHOD: 30 female Wistar-Albino rats were divided into three groups; control group 1 (n=10), treated with hyaluronic acid-carboxymethylcellulose, group 2 (n=8) treated with HBO and group 3 with hyaluronic acid-carboxymethylcellulose and HBO. RESULT: Bursting pressure ...
Kim Su-Young - - 2008
The survival mechanism of dormant tubercle bacilli is unknown; however, accumulating evidence indicates that Mycobacterium tuberculosis can survive and persist in hypoxic and mildly acidic microenvironments. Such conditions are found in the acidic vacuoles of macrophages, which M. tuberculosis is known to target. We used DECAL (differential expression using customized ...
Kim Jiseok - - 2008
The effect of chemical modification of hyaluronic acid (HA) on its distribution throughout the body was successfully visualized in nude mice through real-time bioimaging using quantum dots (QDots). Adipic acid dihydrazide modified HA (HA-ADH) was synthesized and conjugated with QDots having carboxyl terminal ligands activated with 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide and N-hydroxysulfosuccinimide. ...
Ionov R - - 2009
Langmuir monolayers of dioctadecyldimethyammonium bromide and its interaction with the natural mucopolysaccharide hyaluronic acid are studied using thermodynamic methods and X-ray diffraction at grazing incidence. The 2D crystalline lattice parameters of different phases are determined. The monolayer compressibility, the linear crystalline compressibility components and the thermoelastic expansion coefficient are evaluated. ...
Koseki Takuma - - 2008
It was attempted to produce novel furosemide (FS) fast-disintegrating tablets by direct compression. The combination of FS, microcrystalline cellulose, croscarmellose sodium and xylitol was used as the basic formulation, and sucrose stearic acid ester (SSE) was chosen as an additional additive. The tablets with SSE were prepared by the simple ...
Schweinfurth John M - - 2008
OBJECTIVES/HYPOTHESIS: The newborn is heavily dependent on voice communication and therefore has relatively higher vocal demands and expenditures than the adult, the loudness output per mass performance exceeds that of the adult, and the newborn larynx exhibits significant histological and biochemical differences. The neonatal larynx is capable of sustaining relatively ...
Wang Xin Yu - - 2008
Cladonia peziziformis (With.) J.R. Laundon was collected from Baega mountain, Jeonnam Province, Korea in 2008. It is characterized by short and slender podetia with verruculose surface, split along the sides. Apothecia large, pale brown, always growing on the top of the podetia. Primary squamules shell-like, thick, and convex. Fumarprotocetraric acid ...
Sun Yulong Y Biomechanics Laboratory, Division of Orthopedic Research, Mayo Clinic, 200 First Street SW, Rochester, Minnesota 55905, - - 2008
Although the flexor digitorum profundus (FDP) tendon's gliding resistance is low, the lubrication mechanism that enables this is unclear. The principal lubricants in joints, such as hyaluronic acid, phospholipids, and lubricin, a lubricating glycoprotein, are known to be present in the canine tendon. In this study, we assessed the effect ...
Zimmermann Carolyn M - - 2008
This paper describes the sequence of analyses used to determine the nature of a stain located on the floor of room in the former Athens Mental Health and Retardation Hospital in Athens, OH. The location of the stain was reported to be the position in which a decomposing body was ...
Ashley Richard - - 2008
PURPOSE: Injecting dextranomer/hyaluronic acid copolymer has gained popularity as first line treatment for vesicoureteral reflux. However, ureteroneocystostomy has typically been more successful than endoscopic treatments. We evaluated the outcome of dextranomer/hyaluronic acid copolymer injection vs that of extravesical ureteroneocystostomy via a 2 cm inguinal incision (mini-ureteroneocystostomy) for unilateral vesicoureteral reflux. ...
Ozegowski J-H - - 2008
The effect of the microbial hyaluronic acid splitting enzyme hyaluronate lyase produced by Streptococcus agalactiae was investigated in vitro in human atherosclerotic plaque specimens and in vivo on Watanabe heritable hyperlipidaemic rabbits (WHHL) as an animal model for familiar hypercholesteraemia. The in vitro presence of the enzyme caused a partial ...
Jain Vandana - - 2008
PURPOSE: To report infection of self-sealing wounds in cataract surgery by unusual acid-fast organisms. METHODS: Two patients who underwent phacoemulsification and developed corneal tunnel infection by acid-fast organisms were included. Both were managed with appropriate medical and surgical treatment modalities. RESULTS: Diagnosis was facilitated in the first case by diagnostic ...
Andre Pierre - - 2008
BACKGROUND: Hyaluronic acid injections are becoming popular in aesthetic dermatology, and, sometimes, misplacements and very rarely adverse events have been reported. Hyaluronidase, an enzyme that hydrolyzes hyaluronic acid, is used to treat overcorrection or granulomatous reactions. Allergic reactions are well known except for how frequent they occur. OBJECTIVE: This paper ...
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