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https://www.readbyqxmd.com/read/28722660/glypican-3-induces-oncogenicity-by-preventing-igf-1r-degradation-a-process-that-can-be-blocked-by-grb10
#1
Wei Cheng, Po-Chun Huang, Hsiao-Mei Chao, Yung-Ming Jeng, Hey-Chi Hsu, Hung-Wei Pan, Wuh-Liang Hwu, Yu-May Lee
Hepatocellular carcinoma (HCC) is the most common primary liver malignancy and is a major cause of cancer-related death worldwide. Previously, we demonstrated that glypican-3 (GPC3) is highly expressed in HCC, and that GPC3 induces oncogenicity and promotes the growth of cancer cells through IGF-1 receptor (IGF-1R). In the present study, we investigated the mechanisms of GPC3-mediated enhancement of IGF-1R signaling. We demonstrated that GPC3 decreased IGF-1-induced IGF-1R ubiquitination and degradation and increased c-Myc protein levels...
July 6, 2017: Oncotarget
https://www.readbyqxmd.com/read/28713748/closure-of-oroantral-communication-using-platelet-rich-fibrin-a-report-of-two-cases
#2
Mounzer Assad, Waseem Bitar, Mohammed Nasser Alhajj
Oroantral communication (OAC) is an abnormal connection between the maxillary sinus and oral cavity. It is mostly formed after the extraction of the first and second upper molars. Platelet-rich fibrin (PRF) created by Choukroun's protocol concentrates most platelets and leukocytes from a blood harvest to a single autologous fibrin biomaterial. It has been used widely in oral and maxillofacial surgery. However, no data are available concerning the use of PRF alone as a clot and a membrane for the closure of OACs...
January 2017: Annals of Maxillofacial Surgery
https://www.readbyqxmd.com/read/28713740/the-effects-of-platelet-rich-fibrin-membrane-on-secondary-healing-after-pleomorphic-adenoma-excision-in-the-hard-palate-a-preliminary-study
#3
Özer Erdem Gür, Nuray Ensari, Nevreste Didem Sonbay Yılmaz
AIM: This study aims to evaluate the effects of platelet-rich fibrin (PRF) membrane on secondary healing after pleomorphic adenoma (PA) excision in the hard palate. MATERIALS AND METHODS: PRF membranes were laid over mucosal defects which occurred following PA excision in the hard palate. The secondary healing process was monitored in the patients by follow-up examinations on postoperative days 5, 10, 15, 20, 25, 30, 35, and 40. RESULTS: In this preliminary study, epithelialization was observed to have completed on the 30(th) day of follow-up in the first patient and on the 35(th) day in the second and third patients...
January 2017: Annals of Maxillofacial Surgery
https://www.readbyqxmd.com/read/28712634/management-of-dens-invaginatus-type-ii-associated-with-immature-apex-and-large-periradicular-lesion-using-platelet-rich-fibrin-and-biodentine
#4
Shruti Goel, Ruchika Roongta Nawal, Sangeeta Talwar
Dens invaginatus (DI) poses peculiar challenges in endodontic treatment of teeth because of distortion of pulpal space. A case of Oehlers type II DI with open apex and large periapical lesion is reported. The case was managed using cone-beam computed tomography (CBCT), operating microscope, platelet-rich fibrin (PRF), and Biodentine. A 15-year-old male patient presented with palatal swelling. Pulp sensibility testing of right maxillary lateral incisor was negative. Intraoral periapical digital radiograph revealed an Oehlers type II DI with open apex and periapical radiolucency...
July 13, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28700369/pulsed-radiofrequency-in-chronic-pain
#5
Thibaut Vanneste, Astrid Van Lantschoot, Koen Van Boxem, Jan Van Zundert
PURPOSE OF REVIEW: The increasing number of publications on pulsed radiofrequency (PRF) treatment of chronic pain reflects the interest for this technique. We summarize the literature for PRF in five indications: radicular pain, trigeminal neuralgia (TN), occipital neuralgia, shoulder and knee pain. RECENT FINDINGS: The efficacy and safety of PRF adjacent to the dorsal root ganglion was documented on cervical and on lumbar level.PRF has been used for the treatment of TN...
July 11, 2017: Current Opinion in Anaesthesiology
https://www.readbyqxmd.com/read/28698366/nlr-network-mediates-immunity-to-diverse-plant-pathogens
#6
Chih-Hang Wu, Ahmed Abd-El-Haliem, Tolga O Bozkurt, Khaoula Belhaj, Ryohei Terauchi, Jack H Vossen, Sophien Kamoun
Both plants and animals rely on nucleotide-binding domain and leucine-rich repeat-containing (NLR) proteins to respond to invading pathogens and activate immune responses. An emerging concept of NLR function is that "sensor" NLR proteins are paired with "helper" NLRs to mediate immune signaling. However, our fundamental knowledge of sensor/helper NLRs in plants remains limited. In this study, we discovered a complex NLR immune network in which helper NLRs in the NRC (NLR required for cell death) family are functionally redundant but display distinct specificities toward different sensor NLRs that confer immunity to oomycetes, bacteria, viruses, nematodes, and insects...
July 11, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28695450/biofunctionalization-of-porcine-derived-collagen-matrix-using-enamel-matrix-derivative-and-platelet-rich-fibrin-influence-on-mature-endothelial-cell-characteristics-in-vitro
#7
Jung Soo Park, Andreas Max Pabst, Maximilian Ackermann, Maximilian Moergel, Junho Jung, Adrian Kasaj
OBJECTIVES: The present study evaluated the effect of an enamel matrix derivative (EMD) and platelet-rich fibrin (PRF)-modified porcine-derived collagen matrix (PDCM) on human umbilical vein endothelial cells (HUVEC) in vitro. MATERIALS AND METHODS: PDCM (mucoderm®) was prepared to 6 mm (±0.1 mm) diameter discs. PDCM samples were incubated with either EMD, PRF, or control solutions for 100 min at 4 °C before the experiments. Cell-inducing properties of test materials on HUVEC cells were tested with cell proliferation assays (MTT, PrestoBlue®), a cytotoxicity assay (ToxiLight®), a Boyden chamber migration assay, and a cell attachment assay...
July 11, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/28693249/hepatocyte-selection-medium-enriched-hepatocellular-carcinoma-cells-are-positive-for-%C3%AE-fetoprotein-and-cd44
#8
Minoru Tomizawa, Fuminobu Shinozaki, Yasufumi Motoyoshi, Takao Sugiyama, Shigenori Yamamoto, Naoki Ishige
Tissues surrounding hepatocellular carcinomas (HCCs) lack glucose. Hepatocyte selection medium (HSM) is deficient in glucose and is supplemented with galactose. HCC cells were cultured in HSM to investigate the stem cell markers α-fetoprotein (AFP) and cluster of differentiation 44 (CD44). HCC cells (HLF and PLC/PRF/5 cells) were cultured in HSM. Viable cell numbers were determined on days 0 and 7 following culture in HSM. RNA was isolated and subjected to reverse transcription-quantitative PCR (RT-qPCR) to analyze the mRNA expression levels of AFP and CD44...
July 2017: Oncology Letters
https://www.readbyqxmd.com/read/28686663/in-vitro-release-pharmacokinetics-of-amikacin-teicoplanin-and-polyhexanide-in-a-platelet-rich-fibrin-layer-prf-a-laboratory-evaluation-of-a-modern-autologous-wound-treatment
#9
Daniela Knafl, Florian Thalhammer, Matthias G Vossen
OBJECTIVES: Platelet rich fibrin (PRF) is an autologous fibrin glue, produced from patients' blood, which, besides intraoperative use, has applications in the treatment of infected wounds. The combination with antimicrobial agents results in a prolonged antibacterial effect allowing for wound dressing change intervals of seven days even in infected wounds. The aim of this study was to evaluate release kinetics of amikacin, teicoplanin or polyhexanide from a PRF-layer. METHODS: PRF mixed with teicoplanin, amikacin or polyhexanide was sprayed on a silicon gauze patch and put on a colombia agar with bacteria with known minimal inhibitory concentration (MIC) and incubated for 24 hours and afterwards transferred to another agar with the same bacterial strain...
2017: PloS One
https://www.readbyqxmd.com/read/28684420/structural-and-biochemical-analyses-indicate-that-a-bacterial-persulfide-dioxygenase-rhodanese-fusion-protein-functions-in-sulfur-assimilation
#10
Nicole Motl, Meredith A Skiba, Omer Kabil, Janet L Smith, Ruma Banerjee
Hydrogen sulfide (H2S) is a signaling molecule that is toxic at elevated concentrations. In eukaryotes, it is cleared via a mitochondrial sulfide oxidation pathway, which comprises sulfide quinone oxidoreductase, persulfide dioxygenase (PDO), rhodanese, and sulfite oxidase and converts H2S to thiosulfate and sulfate. Natural fusions between the non-heme iron containing PDO and rhodanese, a thiol sulfurtransferase, exist in some bacteria. However, little is known about the role of the PDO-rhodanese fusion (PRF) proteins in sulfur metabolism...
July 6, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28672135/local-application-of-platelet-rich-fibrin-during-lower-third-molar-extraction-improves-treatment-outcomes
#11
REVIEW
Yun He, Junliang Chen, Yue Huang, Qin Pan, Minhai Nie
PURPOSE: Application of platelet-rich fibrin (PRF) during tooth extraction is able to accelerate wound healing, stimulate osseous and soft tissue regeneration, and reduce unwanted side effects. The aim of this meta-analysis was to investigate the effect of local application of PRF on controlling postoperative signs and symptoms after the extraction of an impacted lower third molar. MATERIALS AND METHODS: A systematic search of PubMed, Web of Science, Embase, and the Cochrane Library was performed to identify all studies published up to October 2016 that investigated the effect of PRF on lower third molar extraction...
June 8, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28667922/combination-of-hydroxyapatite-platelet-rich-fibrin-and-amnion-membrane-as-a-novel-therapeutic-option-in-regenerative-periapical-endodontic-surgery-case-series
#12
Uday Kiran Uppada, Butchibabu Kalakonda, Pradeep Koppolu, Narendra Varma, Kiran Palakurthy, Venkatesh Manchikanti, Shilpa Prasad, Shereen Samar, Lingam Amara Swapna
INTRODUCTION: Periapical surgery is the last resort in the arsenal of an endodontist to effectively deal with periapical lesions that result from necrosis of the pulp. Bone grafts, growth factors and membranes form an array of regenerative materials that influence the healing outcome of periapical surgery. PRESENTATION OF CASE: The main purpose of the two cases reported here was to assess the potential benefits of a combination of bone graft, platelet-rich fibrin (PRF) and amnion membrane in terms of reduced post-operative discomfort, radiographic evidence of accelerated periapical bone healing and present a novel therapeutic option in the management of large periapical lesions...
June 15, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28666882/a-second-order-orientation-contrast-stimulus-for-population-receptive-field-based-retinotopic-mapping
#13
Funda Yildirim, Joana Carvalho, Frans W Cornelissen
Visual field or retinotopic mapping is one of the most frequently used paradigms in fMRI. It uses activity evoked by position-varying high luminance contrast visual patterns presented throughout the visual field for determining the spatial organization of cortical visual areas. While the advantage of using high luminance contrast is that it tends to drive a wide range of neural populations - thus resulting in high signal-to-noise BOLD responses - this may also be a limitation, especially for approaches that attempt to squeeze more information out of the BOLD response, such as population receptive field (pRF) mapping...
June 27, 2017: NeuroImage
https://www.readbyqxmd.com/read/28658928/staged-approach-for-advanced-gingival-recession-free-gingival-autograft-followed-by-coronally-advanced-flap-with-prf-membrane
#14
Sowmiya Lingeshwaran, Ramakrishnan Theyagarajan, Ambalavanan Namasivayam
No abstract text is available yet for this article.
May 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28658160/the-effect-of-intra-articular-stimulation-by-pulsed-radiofrequency-on-chronic-sacroiliac-joint-pain-refractory-to-intra-articular-corticosteroid-injection-a-retrospective-study
#15
Min Cheol Chang, Sang Ho Ahn
We investigated the degree of pain reduction following intra-articular (IA) pulsed radiofrequency (PRF) stimulation of the sacroiliac joint (SIJ) in patients with chronic SIJ pain that had not responded to IA corticosteroid injection. Twenty patients were recruited. Clinical outcomes after applying PRF stimulation of the SIJ were evaluated by a numeric rating scale (NRS) and a 7-point Likert scale. The NRS scores significantly changed over time. The NRS scores at 1, 2, and 3 months after PRF were significantly lower than those before PRF...
June 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28656311/oleocanthal-exerts-antitumor-effects-on-human-liver-and-colon-cancer-cells-through-ros-generation
#16
Antonella Cusimano, Daniele Balasus, Antonina Azzolina, Giuseppa Augello, Maria R Emma, Caterina Di Sano, Roberto Gramignoli, Stephen C Strom, James A McCubrey, Giuseppe Montalto, Melchiorre Cervello
The beneficial health properties of the Mediter-ranean diet are well recognized. The principle source of fat in Mediterranean diet is extra-virgin olive oil (EVOO). Oleocanthal (OC) is a naturally occurring minor phenolic compound isolated from EVOO, which has shown a potent anti-inflammatory activity, by means of its ability to inhibit the cyclooxygenase (COX) enzymes COX-1 and COX-2. A large body of evidence indicates that phenols exhibit anticancer activities. The aim of the present study was to evaluate the potential anticancer effects of OC in hepatocellular carcinoma (HCC) and colorectal carcinoma (CRC) models...
June 21, 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/28651068/effect-of-choukroun-platelet-rich-fibrin-combined-with-autologous-micro-morselized-bone-on-the-repair-of-mandibular-defects-in-rabbits
#17
Tian Zhou, Hua-Wei Yang, Zhuo-Wei Tian, Yang Wang, Xiao-Shan Tang, Jing-Zhou Hu
PURPOSE: The aim of this study was to explore the effect of Choukroun platelet-rich fibrin (PRF) combined with autologous micro-morselized bone on the repair of mandibular defects in rabbits. MATERIALS AND METHODS: Thirty-six healthy New Zealand rabbits were selected for the present study. After models of mandibular defects were established, rabbits were randomly divided into Choukroun PRF, autologous micro-morselized bone (autologous), Choukroun PRF combined with autologous bone (combined) and model groups...
June 2, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28650796/comparison-of-bovine-bone-autogenic-bone-mixture-versus-platelet-rich-fibrin-for-maxillary-sinus-grafting-histologic-and-histomorphologic-study
#18
Hakan Ocak, Nukhet Kutuk, Umut Demetoglu, Esra Balcıoglu, Saim Ozdamar, Alper Alkan
Numerous grafting materials have been used to augment the maxillary sinus floor for long-term stability and success for implant-supported prosthesis. To enhance bone formation, adjunctive blood-born growth factor sources have gained popularity during the recent years. The present study compared the use of platelet-rich fibrin (PRF) and bovine-autogenous bone mixture for maxillary sinus floor elevation. A split-face model was used to apply 2 different filling materials for maxillary sinus floor elevation in 22 healthy adult sheep...
June 2017: Journal of Oral Implantology
https://www.readbyqxmd.com/read/28650409/platelet-rich-fibrin-accelerates-skin-wound-healing-in-diabetic-mice
#19
Yinjia Ding, Lei Cui, Qiming Zhao, Weiqiang Zhang, Huafeng Sun, Lijun Zheng
Diabetic foot ulcers (DFUs) are associated with an increased risk of secondary infection and amputation. Platelet-rich fibrin (PRF), a platelet and leukocyte concentrate containing several cytokines and growth factors, is known to promote wound healing. However, the effect of PRF on diabetic wound healing has not been adequately investigated. The aim of the study was to investigate the effect of PRF on skin wound healing in a diabetic mouse model. Platelet-rich fibrin was prepared from whole blood of 8 healthy volunteers...
June 23, 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28648869/long-term-cytokine-and-growth-factor-release-from-equine-platelet-rich-fibrin-clots-obtained-with-two-different-centrifugation-protocols
#20
Román F Jiménez-Aristizabal, Catalina López, María E Álvarez, Carlos Giraldo, Marta Prades, Jorge U Carmona
OBJECTIVES: To compare the temporal release (over three weeks) of tumor necrosis factor alpha (TNF-α), interleukin 4 (IL-4), IL-1 receptor antagonist (IL-1ra), platelet-derived growth factor BB (PDGF-BB) and transforming growth factor beta-1 (TGF-β1) from two platelet-rich fibrin (PRF) preparations from equine blood obtained at either 240g/8min or 416g/10min. METHODS: Whole blood from 10 horses was used to obtain PRF clots by two different centrifugation protocols...
June 22, 2017: Cytokine
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