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plate rich plasma

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https://www.readbyqxmd.com/read/27867268/composition-of-the-essential-oil-from-danggui-zhiqiao-herb-pair-and-its-analgesic-activity-and-effect-on-hemorheology-in-rats-with-blood-stasis-syndrome
#1
Yuanqing Wang, Jianye Yan, Shunxiang Li, Wei Wang, Xiong Cai, Dan Huang, Limin Gong, Xin Li
BACKGROUND: Angelica sinensis and Aurantii fructu used in a pair, named Danggui-Zhiqiao herb-pair (DZHP), which was rich in essential oil and has been adopted to promote blood circulation, dispel blood stasis, and relieve pain in traditional Chinese medicine (TCM). OBJECTIVE: To analyze the composition and pharmacological effects of essential oil from DZHP. MATERIALS AND METHODS: The composition of the essential oil from DZHP was analyzed by gas chromatography/mass spectrometry (GC/MS)...
October 2016: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/27794261/differentiation-of-conductive-cells-a-matter-of-life-and-death
#2
REVIEW
Jung-Ok Heo, Bernhard Blob, Ykä Helariutta
Two major conducting tissues in plants, phloem and xylem, are composed of highly specialized cell types adapted to long distance transport. Sieve elements (SEs) in the phloem display a thick cell wall, callose-rich sieve plates and low cytoplasmic density. SE differentiation is driven by selective autolysis combined with enucleation, after which the plasma membrane and some organelles are retained. By contrast, differentiation of xylem tracheary elements (TEs) involves complete clearance of the cellular components by programmed cell death followed by autolysis of the protoplast; this is accompanied by extensive deposition of lignin and cellulose in the cell wall...
October 26, 2016: Current Opinion in Plant Biology
https://www.readbyqxmd.com/read/27687541/cholesterol-rich-membrane-microdomains-modulate-wnt-%C3%AE-catenin-morphogen-gradient-during-xenopus-development
#3
Alice H Reis, Marcela M Moreno, Lorena A Maia, Fernanda P Oliveira, Andressa S Santos, José Garcia Abreu
Wnt/β-catenin has been described as crucial for dorsal-ventral and antero-posterior patterning, playing multiple roles at different stages of development. Cholesterol-rich membrane microdomains (CRMMs), cholesterol- and sphingolipid-enriched domains of the plasma membrane, are known as platforms for signaling pathways. Although we have demonstrated the importance of the CRMMs for head development, how they participate in prechordal plate formation and embryo axis patterning remains an open question. Moreover, the participation of the CRMMs in the Wnt/β-catenin signaling pathway activity in vivo is unclear, particularly during embryonic development...
September 26, 2016: Mechanisms of Development
https://www.readbyqxmd.com/read/27583354/histological-response-to-platelet-rich-plasma-added-to-polypropylene-mesh-implemented-in-rabbits
#4
Oscar Rubini Ávila, Natália Gomes Parizzi, Ana Paula Mayumi Souza, Dayane Silvestre Botini, João Ytimura Alves, Silvio Henrique Maia Almeida
INTRODUCTION: The platelet-rich plasma (PRP) is part of a set of biotechnologies, providing some growth factors that promote repair of different tissues. The polypropylene meshes (PPM) are applied in the correction of abdominal defects, pelvic floor and urinary incontinence, however, they induce many significant complications, as a result of an inappropriate inflammatory response. PURPOSE: To investigate the changes caused by PRP associated with the implantation of PPM in the abdomen of female rabbits, in the production of collagen I and III and the inflammatory infiltrate (ININ)...
September 1, 2016: International Braz J Urol: Official Journal of the Brazilian Society of Urology
https://www.readbyqxmd.com/read/27216879/eviscerated-corneas-as-tissue-source-for-ex-vivo-expansion-of-limbal-epithelial-cells-on-platelet-rich-plasma-gels
#5
Leonard G Heydenrych, Donald F du Toit, Colleen M Aldous
PURPOSE/AIM OF THE STUDY: To assess if corneal epithelium can be cultured ex vivo from corneas eviscerated due to irretrievable trauma, according to a cell culture method that made use of autologous platelet-rich plasma (A-PRP) as culture substrate. To compare corneal epithelium cultured ex vivo from corneas eviscerated following trauma using A-PRP combined with Dulbecco's modified Eagles medium (DMEM), versus DMEM alone. MATERIALS AND METHODS: This was a laboratory case-controlled study of human corneal cells cultured in a mixture of A-PRP and DMEM, versus DMEM alone from six eviscerated corneas...
May 23, 2016: Current Eye Research
https://www.readbyqxmd.com/read/27148928/the-efficacy-of-platelet-rich-plasma-in-the-treatment-of-rib-fractures
#6
Samil Gunay, Huseyin Candan, Rahsan Yılmaz, Irfan Eser, Umit Aydoğmus
Background Rib fracture is the most common result of thoracic traumas. Intrapulmonary shunt, alveolar capillary membrane damage, intra-alveolar hemorrhage, and hypoxia may develop following rib fractures. Therefore, prompt treatment is important. The aim of this experimental study was to analyze the effects of platelet-rich plasma (PRP) on rib fractures to secure a speedier and more efficient treatment method. Materials and Methods The study involved 18 New Zealand white rabbits, randomly divided into three groups as Group 1, the sham group with no surgical intervention; Group 2, the control group in which simple rib fractures were applied and no treatment; and Group 3, in which rib fractures were applied and then PRP treatment was administered...
May 5, 2016: Thoracic and Cardiovascular Surgeon
https://www.readbyqxmd.com/read/27001218/decorin-over-expression-by-decidual-cells-in-preeclampsia-a-potential-blood-biomarker
#7
Mohammad F Siddiqui, Pinki Nandi, Gannareddy V Girish, Karen Nygard, Genevieve Eastabrook, Barbra de Vrijer, Victor K M Han, Peeyush K Lala
BACKGROUND: Decorin, a leucine-rich proteoglycan that is produced by decidual cells, limits invasion and endovascular differentiation of extravillous trophoblast cells during early placentation by binding to multiple tyrosine kinase receptors, in particular, vascular endothelial growth factor receptor-2. OBJECTIVE: Because many studies have reported an association between poor trophoblast invasion and endovascular differentiation with preeclampsia, the studies reported here tested (1) whether decorin over-expression in the chorionic villi and/or basal decidua is associated with preeclampsia and, if so, (2) whether this association results in a hypoinvasive placenta, and (3) whether elevated plasma decorin concentration in the second trimester is a predictive biomarker for preeclampsia...
September 2016: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/26886592/serum-collagen-type-ii-cleavage-epitope-and-serum-hyaluronic-acid-as-biomarkers-for-treatment-monitoring-of-dogs-with-hip-osteoarthritis
#8
José M Vilar, Mónica Rubio, Giuseppe Spinella, Belén Cuervo, Joaquín Sopena, Ramón Cugat, Montserrat Garcia-Balletbó, Juan M Dominguez, Maria Granados, Asta Tvarijonaviciute, José J Ceron, José M Carrillo
The aim of this study was to evaluate the use of serum type II collagen cleavage epitope and serum hyaluronic acid as biomarkers for treatment monitoring in osteoarthritic dogs. For this purpose, a treatment model based on mesenchymal stem cells derived from adipose tissue combined with plasma rich in growth factors was used. This clinical study included 10 dogs with hip osteoarthritis. Both analytes were measured in serum at baseline, just before applying the treatment, and 1, 3, and 6 months after treatment...
2016: PloS One
https://www.readbyqxmd.com/read/26862185/caveats-in-studies-of-the-physiological-role-of-polyphosphates-in-coagulation
#9
REVIEW
Tomas L Lindahl, Sofia Ramström, Niklas Boknäs, Lars Faxälv
Platelet-derived polyphosphates (polyP), stored in dense granule and released upon platelet activation, have been claimed to enhance thrombin activation of coagulation factor XI (FXI) and to activate FXII directly. The latter claim is controversial and principal results leading to these conclusions are probably influenced by methodological problems. It is important to consider that low-grade contact activation is initiated by all surfaces and is greatly amplified by the presence of phospholipids simulating the procoagulant membranes of activated platelets...
February 2016: Biochemical Society Transactions
https://www.readbyqxmd.com/read/26809431/comparative-release-of-growth-factors-from-prp-prf-and-advanced-prf
#10
Eizaburo Kobayashi, Laura Flückiger, Masako Fujioka-Kobayashi, Kosaku Sawada, Anton Sculean, Benoit Schaller, Richard J Miron
OBJECTIVES: The use of platelet concentrates has gained increasing awareness in recent years for regenerative procedures in modern dentistry. The aim of the present study was to compare growth factor release over time from platelet-rich plasma (PRP), platelet-rich fibrin (PRF), and a modernized protocol for PRF, advanced-PRF (A-PRF). MATERIALS AND METHODS: Eighteen blood samples were collected from six donors (3 samples each for PRP, PRF, and A-PRF). Following preparation, samples were incubated in a plate shaker and assessed for growth factor release at 15 min, 60 min, 8 h, 1 day, 3 days, and 10 days...
January 25, 2016: Clinical Oral Investigations
https://www.readbyqxmd.com/read/26659966/ratiometric-fluorescence-live-imaging-analysis-of-membrane-lipid-order-in-arabidopsis-mitotic-cells-using-a-lipid-order-sensitive-probe
#11
Patricia Gerbeau-Pissot, Christophe Der, Markus Grebe, Thomas Stanislas
Eukaryotic cells contain membranes exhibiting different levels of lipid order mostly related to their relative amount of sterol-rich domains, thought to mediate temporal and spatial organization of cellular processes. We previously provided evidence in Arabidopsis thaliana that sterols are crucial for execution of cytokinesis, the last stage of cell division. Recently, we used di-4-ANEPPDHQ, a fluorescent probe sensitive to order of lipid phases, to quantify the level of membrane order of the cell plate, the membrane structure separating daughter cells during somatic cytokinesis of higher plant cells...
2016: Methods in Molecular Biology
https://www.readbyqxmd.com/read/26460099/leukocyte-reduced-platelet-rich-plasma-normalizes-matrix-metabolism-in-torn-human-rotator-cuff-tendons
#12
Jessica A Cross, Brian J Cole, Kaylan P Spatny, Emily Sundman, Anthony A Romeo, Greg P Nicholson, Bettina Wagner, Lisa A Fortier
BACKGROUND: The optimal platelet-rich plasma (PRP) for treatment of supraspinatus tendinopathy has not been determined. PURPOSE: To evaluate the effect of low- versus high-leukocyte concentrated PRP products on catabolic and anabolic mediators of matrix metabolism in diseased rotator cuff tendons. STUDY DESIGN: Controlled laboratory study. METHODS: Diseased supraspinatus tendons were treated with PRP made by use of 2 commercial systems: Arthrex Autologous Conditioned Plasma Double Syringe System (L(lo) PRP) and Biomet GPS III Mini Platelet Concentrate System (L(hi) PRP)...
December 2015: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/26428302/the-nesh-abi-3-based-wave2-complex-is-functionally-distinct-from-the-abi-1-based-wave2-complex
#13
Saki Sekino, Yuriko Kashiwagi, Hitoshi Kanazawa, Kazuki Takada, Takashi Baba, Seiichi Sato, Hiroki Inoue, Masaki Kojima, Katsuko Tani
BACKGROUND: Abl interactor (Abi) family proteins play significant roles in actin cytoskeleton organization through participation in the WAVE complex. Mammals possess three Abi proteins: Abi-1, Abi-2, and NESH/Abi-3. Abi-1 and Abi-2 were originally identified as Abl tyrosine kinase-binding proteins. It has been disclosed that Abi-1 acts as a bridge between c-Abl and WAVE2, and c-Abl-mediated WAVE2 phosphorylation promotes actin remodeling. We showed previously that NESH/Abi-3 is present in the WAVE2 complex, but neither binds to c-Abl nor promotes c-Abl-mediated phosphorylation of WAVE2...
2015: Cell Communication and Signaling: CCS
https://www.readbyqxmd.com/read/26354438/lateral-diffusion-function-and-expression-of-the-slow-channel-congenital-myasthenia-syndrome-%C3%AE-c418w-nicotinic-receptor-mutation-with-changes-in-lipid-raft-components
#14
Jessica Oyola-Cintrón, Daniel Caballero-Rivera, Leomar Ballester, Carlos A Baéz-Pagán, Hernán L Martínez, Karla P Vélez-Arroyo, Orestes Quesada, José A Lasalde-Dominicci
Lipid rafts, specialized membrane microdomains in the plasma membrane rich in cholesterol and sphingolipids, are hot spots for a number of important cellular processes. The novel nicotinic acetylcholine receptor (nAChR) mutation αC418W, the first lipid-exposed mutation identified in a patient that causes slow channel congenital myasthenia syndrome was shown to be cholesterol-sensitive and to accumulate in microdomains rich in the membrane raft marker protein caveolin-1. The objective of this study is to gain insight into the mechanism by which lateral segregation into specialized raft membrane microdomains regulates the activable pool of nAChRs...
October 30, 2015: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/26111594/opening-wedge-high-tibial-osteotomy-review-of-100-consecutive-cases
#15
Steven A Giuseffi, William H Replogle, Walter R Shelton
PURPOSE: We report intermediate-term outcomes of a large consecutive series of medial opening-wedge tibial osteotomies. METHODS: One hundred consecutive patients who underwent medial high tibial osteotomy from 2004-2013 were retrospectively reviewed. Charts were reviewed for patient age and gender, knee pain and range of motion, smoking status, and body mass index. Operative reports were reviewed for bone graft type, degree of correction, and osteotomy fixation method...
November 2015: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/26017614/tendon-regeneration-with-a-novel-tendon-hydrogel-in-vitro-effects-of-platelet-rich-plasma-on-rat-adipose-derived-stem-cells
#16
COMPARATIVE STUDY
Christopher S Crowe, Grace Chiou, Rory McGoldrick, Kenneth Hui, Hung Pham, James Chang
BACKGROUND: Tendon hydrogel is a promising new injectable substance that has been shown to improve repair strength after tendon injury. This study assesses the capacity of platelet-rich plasma to stimulate proliferation and migration of rat adipose-derived stem cells in tendon hydrogel in vitro. METHODS: To assess proliferation, adipose-derived stem cells were exposed to plasma, plasma supplemented with growth factors, or platelet-rich plasma in culture medium and tendon hydrogel...
June 2015: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/26006248/biomedical-application-of-low-molecular-weight-heparin-protamine-nano-micro-particles-as-cell-and-growth-factor-carriers-and-coating-matrix
#17
REVIEW
Masayuki Ishihara, Satoko Kishimoto, Makoto Takikawa, Hidemi Hattori, Shingo Nakamura, Masafumi Shimizu
Low molecular weight heparin (LMWH)/protamine (P) nano/micro particles (N/MPs) (LMWH/P N/MPs) were applied as carriers for heparin-binding growth factors (GFs) and for adhesive cells including adipose-derived stromal cells (ADSCs) and bone marrow-derived mesenchymal stem cells (BMSCs). A mixture of LMWH and P yields a dispersion of N/MPs (100 nm-3 μm in diameter). LMWH/P N/MPs can be immobilized onto cell surfaces or extracellular matrix, control the release, activate GFs and protect various GFs. Furthermore, LMWH/P N/MPs can also bind to adhesive cell surfaces, inducing cells and LMWH/P N/MPs-aggregate formation...
2015: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/25990927/assisted-deposition-of-nano-hydroxyapatite-onto-exfoliated-carbon-nanotube-oxide-scaffolds
#18
H Zanin, C M R Rosa, N Eliaz, P W May, F R Marciano, A O Lobo
Electrodeposited nano-hydroxyapatite (nHAp) is more similar to biological apatite in terms of microstructure and dimension than apatites prepared by other processes. Reinforcement with carbon nanotubes (CNTs) enhances its mechanical properties and increases adhesion of osteoblasts. Here, we carefully studied nHAp deposited onto vertically aligned multi-walled CNT (VAMWCNT) scaffolds by electrodeposition and soaking in a simulated body fluid (SBF). VAMWCNTs are porous biocompatible scaffolds with nanometric porosity and exceptional mechanical and chemical properties...
June 14, 2015: Nanoscale
https://www.readbyqxmd.com/read/25686663/detergent-sclerosants-are-deactivated-and-consumed-by-circulating-blood-cells
#19
D E Connor, O Cooley-Andrade, W X Goh, D D F Ma, K Parsi
OBJECTIVE: To investigate the deactivating effects of circulating blood cells on the lytic activity of detergent sclerosants. METHODS: Samples of whole blood (WB), platelet-rich plasma (PRP), and isolated leukocytes were incubated with various concentrations of sodium tetradecyl sulfate (STS) or polidocanol (POL) and added to human umbilical vein endothelial cells (HUVECs), which were then counted using a fluorescent plate reader. Full blood counting was performed using a hematology analyzer...
April 2015: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/25616895/the-wnt-receptor-frizzled-4-modulates-adam13-metalloprotease-activity
#20
Genevieve Abbruzzese, Anne-Kathrin Gorny, Lilian T Kaufmann, Hélène Cousin, Iivari Kleino, Herbert Steinbeisser, Dominique Alfandari
Cranial neural crest (CNC) cells are a transient population of stem cells that originate at the border of the neural plate and the epidermis, and migrate ventrally to contribute to most of the facial structures including bones, cartilage, muscles and ganglia. ADAM13 is a cell surface metalloprotease that is essential for CNC cell migration. Here, we show in Xenopus laevis embryos that the Wnt receptor Fz4 binds to the cysteine-rich domain of ADAM13 and negatively regulates its proteolytic activity in vivo. Gain of Fz4 function inhibits CNC cell migration and can be rescued by gain of ADAM13 function...
March 15, 2015: Journal of Cell Science
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