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Study of Effects of Photodynamic Therapy(PDT),in Scar-Induced Skin Wounds in Rats Wistar:The New Clinical Perspective for Ulcers

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Modern Research in Inflammation 2017年第1期6卷 1-8页

作者： Marcus Vinicius de Mello Pinto Aline Ronis Sampaio Reggiani Vilela Goncalves Carlos Eduardo Tenorio da Veiga Lamara Laguardia Valente Rocha Daniel Almeida da Costa Lina Claudia Pereira Lopes Rafael Batista Ferreira pamela mara cainelli valim Kellen Regina Rodrigues Chaveiro Elias Sobreira Sathler Richard Raphael Borges Tavares Vieira Isabela Nardoni Bernardes Medical School of the University of Buenos Aires Bueinos AiresArgentina The Cellurare Institute Center of Laser Treatment and Cell Therapy PetropolisBrazil Department of Cellular and Structural Biology of Federal University of Vicosa VicosaBrazil Clinical Hospital of Correas Rio de JaneiroBrazil The Medical School at the Health Sciences Institute of the University Center of Caratinga CaratingaBrazil The Medical School at the Center of Higher Education of Valenca ValencaBrazil Luiz Gioseffi Jannuzzi School Hospital of the Dom Andre Arcoverde Foundation ValencaBrazil

Photodynamic therapy today is becoming an important role in the healing of lacerated tissues, since it has therapeutic resources capable of accelerating this process. One treatment option is the clinical phototherapy, and Photodynamic Therapy (PDT) is being widely used. This study aims to evaluate the effect of PDT on the healing of skin wounds in rats. We used a sample of 39 male rats Wistar divided into three groups, a control, a PDT-treated green and red with the last PDT. After 24 hours before the surgical incisions, PDT was used in both groups for 6 minutes and was evaluated in histological level, the inflammatory reaction and the repair process. The results showed that the granulation tissue was more developed in the irradiated group than in the control group and the amount of chronic inflammatory cells (monocytes, macrophages, lymphocytes and plasma cells) predominated with green phototherapy. The epithelialization in the wound margins and scarring with better quality occurred with red PDT (640 nm), which the higher deposition was of collagen. However, phototherapy not collimated of 640 nm (red) resulted in better anti-inflammatory effects. Given these answers with phototherapy not collimated green (525 nm) and red (640 nm), we conclude that the use of these wavelengths is possible with benefits, mainly with red LED.

关键词： Healing Photodynamic Therapy(PDT) Light Emitting Diodes(LEDs) Ulcer

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Philippine retinoblastoma initiative multi-eye center study 2010-2020

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International Journal of Ophthalmology(English edition) 2024年第1期17卷 144-156页

作者： Roland Joseph D.Tan Gary John V.Mercado Patricia E.Cabrera Paulita pamela P.Astudillo Rolando Enrique D.Domingo Josept Mari S.Poblete Charmaine Grace M.Cabebe Adriel Vincent R.Te Melissa Anne S.Gonzales Jocelyn G.Sy Beltran Alexis A.Aclan Jayson T.So Fatima G.Regala Kimberley Amanda K.Comia Josemaria M.Castro mara Augustine S.Galang Aldous Dominic C.Cabanlas Benedicto Juan E.Aguilar Gabrielle S.Evangelista Jo Michael Maniwan Andrei P.Martin Calvin Y.Martinez John Alfred H.Lim Rena Ivy Bascuna Rachel M.Ng Kevin B.Agsaoay Kris Zanna A.Acluba-Arao Ellaine Rose V.Apostol Beatriz M.Prieto Department of Ophthalmology and Visual Sciences Philippine General HospitalManila 1000Philippines Department of Ophthalmology Baguio General Hospital and Medical CenterBaguio City 2600Philippines Department of Ophthalmology Manila Doctors HospitalManila 1000Philippines Department of Ophthalmology Rizal Medical CenterPasig City 1600Philippines Department of Ophthalmology Jose B.Lingad Memorial Regional HospitalPampanga 2000Philippines Department of Ophthalmology Southern Philippines Medical CenterDavao City 8000Philippines Department of Ophthalmology East Avenue Medical CenterQuezon City 1100Philippines Department of Ophthalmology Northern Mindanao Medical CenterCagayan de Oro City 9000Philippines Department of Ophthalmology Cebu Velez General HospitalCebu City 6000Philippines Legazpi Eye Center Legazpi City 4500Philippines Department of Ophthalmology Cagayan Valley Medical CenterTuguegarao City 3500Philippines

AIM:To provide a comprehensive and more representative national data on the disease,especially on treatment options and outcomes,and to determine access of retinoblastoma patients from Luzon,Visayas and Mindanao to eye care,and determine if access is associated with delay in consultation,staging and ***:Cohort study of retinoblastoma patients seen in eleven institutions located in the three major areas of the Philippines namely Luzon,Vizayas and Mindanao from ***:Totally 636 patients,involving 821 eyes,were ***(57%)were from Luzon and were seen in institutions in Luzon(72%).Annually,58±10 new cases were seen with 71%having unilateral *** delay of consultation remained long at 9(3,17)mo,longest in patients with unilateral disease(P<0.02)and those from the Visayas(P<0.003).Based on the International Retinoblastoma Staging System,only 35%of patients had Stage 1 while 47%already had extraocular *** was the most common treatment received by 484 patients while intravenous chemotherapy was received by *** were 250(39%)patients alive,195(31%)dead,85(13%)abandoned,17(3%)refused and 89(14%)with no ***:This study presents the largest cohort of retinoblastoma patients in the Philippines in terms of patients’and participating institutions’number and geographical location and type of institution(private and public).It also presents more comprehensive data on the treatments used and outcomes(survival,globe salvage,and vision retention rates).Delay in consultation was still long among patients leading to advanced disease stage and lower survival *** increasing capacity to diagnose and manage retinoblastoma in the country,the delay of consultation remains long primarily due to accessibility issues to eye care institutions especially in the Visayas and financial *** delay was still significant that overall survival rate remain low.

关键词： retinoblastoma Philippines clinical profile

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Gsα^(R201C)and estrogen reveal different subsets of bone marrow adiponectin expressing osteogenic cells

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Bone Research 2022年第4期10卷 784-798页

作者： Biagio Palmisano Rossella Labella Samantha Donsante Cristina Remoli Emanuela Spica Ilenia Coletta Giorgia Farinacci Michele Dello Spedale Venti Isabella Saggio Marta Serafini pamela Gehron Robey Alessandro Corsi mara Riminucci Department of Molecular Medicine Sapienza University of RomeRome 00161Italy Tettamanti Research Center Department of PediatricsUniversity of Milano Bicocca/Fondazione MBBMMonza 20900Italy Department of Biology and Biotechnology Sapienza University of RomeRome 00185Italy Institute of Structural Biology and School of Biological Sciences Nanyang Technological University 639798 SingaporeSingapore CNR Institute of Molecular Biology and Pathology Piazzale Aldo Moro 5Rome 00185Italy Skeletal Biology Section National Institute of Dental and Craniofacial ResearchNational Institutes of HealthDepartment of Health and Human ServicesBethesdaMD 20892USA

The Gsα/cAMP signaling pathway mediates the effect of a variety of hormones and factors that regulate the homeostasis of the post-natal ***,the dysregulated activity of Gsαdue to gain-of-function mutations (R201C/R201H)results in severe architectural and functional derangements of the entire bone/bone marrow *** the consequences of gain-of-function mutations of Gsαhave been extensively investigated in osteoblasts and in bone marrow osteoprogenitor cells at various differentiation stages,their effect in adipogenically-committed bone marrow stromal cells has remained *** generated a mouse model with expression of Gsα^(R201C) driven by the Adiponectin(Adq)***-Gsα^(R201C) mice developed a complex combination of metaphyseal,diaphyseal and cortical bone *** the metaphysis,Gsα^(R201C) caused an early phase of bone resorption followed by bone *** bone formation was sustained by cells that were traced by Adq-Cre and eventually resulted in a high trabecular bone mass *** the diaphysis,Gsα^(R201C),in combination with estrogen,triggered the osteogenic activity of Adq-Cre-targeted perivascular bone marrow stromal cells leading to intramedullary bone ***,consistent with the previously unnoticed presence of Adq-Cre-marked pericytes in intraosseous blood vessels,Gsα^(R201C) caused the development of a lytic phenotype that affected both cortical(increased porosity)and trabecular(tunneling resorption)*** results provide the first evidence that the Adq-cell network in the skeleton not only regulates bone resorption but also contributes to bone formation,and that the Gsα/cAMP pathway is a major modulator of both functions.

关键词： estrogen sustained skeleton

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