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Navarro Martin A, Piñeiro Retif R, Arnaiz M, Ramos R, Aso S, Garcia E, Martinez J, Sancho I, Guedea F. Single fraction of SBRT in pulmonary lesions. Rep Pract Oncol Radiother 2013. [DOI: 10.1016/j.rpor.2013.03.319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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Silva F, Cisternas M, Maguida G, Ruiz M, Diaz P, Gonzalez S, Martinez J, Meneses L, Massardo L. Hemorrhagic emergency due to intrahepatic aneurism rupture in a patient with Polyateritis Nodosa after long time of episodic fever: A case report. Presse Med 2013. [DOI: 10.1016/j.lpm.2013.02.218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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103
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Vargas O, Martinez J, Ibanez M, Pena C, Santamaria M. The use of metered-dose inhalers in hospital environments. J Aerosol Med Pulm Drug Deliv 2013; 26:287-96. [PMID: 23458577 DOI: 10.1089/jamp.2011.0940] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Metered-dose inhalers (MDIs) have become a firsthand therapeutic strategy for the management of respiratory diseases, mainly for chronic obstructive pulmonary disease (COPD) and asthma. It has been determined, however, that patients do not always use these devices correctly. Our primary goal was to establish the level of technical knowledge of patients with COPD and/or asthma on the use of MDIs, as well as other associated factors related to the effective use of this delivery method. METHODOLOGY This study was performed with 191 patients (49.2% male, 50.8% female) diagnosed with COPD and/or asthma at Hospital Universitario Mayor (Bogotá, Colombia). The agreement between different observers on nine aspects of the use of the inhaler was assessed by testing the unweighted kappa correlation coefficient and its significance. The correlations between demographic variables, risk factors, and proper knowledge of the adequate use of inhalers were established by means of the Pearson chi-square test (also called Fisher exact test) (expected values less than 5). Statistical tests were evaluated at a significance level equivalent to 5% (p<0.05). RESULTS AND CONCLUSIONS The study detected deficiencies in educational factors, specifically regarding the initial contact with the patient and regular follow-up by the team of health professionals. It also showed insufficient strategies for the training of patients in the use of the inhalers. There were no significant differences by gender (p>0.05) in the implementation of the various aspects of the proper use sequence for MDIs. However, there were significant differences related to education levels, socioeconomic status, age, and current occupation. A worse inhaler technique was associated with lower education level (0.034), higher age (p=0.003), and absence of job (p=0.005). Changes in the education of patients on the issue, together with the use of the spacer/valved holding chamber proved to be valid strategies that, with the support of the patients' health-care team, were able to improve the MDI technique of the studied group.
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Berlana D, Sabin P, Rius J, Llop E, Romero R, Marquez E, Schoenenberger JA, Martinez J. DSL-006 Cost Analysis of Adult Parenteral Nutrition Systems: Three-Compartment Bag Versus Customised. Eur J Hosp Pharm 2013. [DOI: 10.1136/ejhpharm-2013-000276.249] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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105
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Morgado M, Ribeiro M, Oliveira R, Martinez J, Morgado S. GRP-164 Rivaroxaban Versus Enoxaparin: Comparison of Outpatient Treatment Adherence in Clinical Practise. Eur J Hosp Pharm 2013. [DOI: 10.1136/ejhpharm-2013-000276.164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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106
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Murrell K, Offerman S, Martinez J, Yee R. 138 Use of an Early Patient-Physician Assignment System on Emergency Department Arrival Decreases Time to Physician and Emergency Department Length of Stay. Ann Emerg Med 2012. [DOI: 10.1016/j.annemergmed.2012.06.115] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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107
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Gebeshuber CA, Martinez J. miR-100 suppresses IGF2 and inhibits breast tumorigenesis by interfering with proliferation and survival signaling. Oncogene 2012; 32:3306-10. [DOI: 10.1038/onc.2012.372] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2012] [Revised: 06/19/2012] [Accepted: 07/09/2012] [Indexed: 12/19/2022]
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108
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Hernandez J, Masa M, Messeguer R, Mitjans F, Adan J, Martinez J, Coll T, Padilla L, Dakhel S, Hervas R. 1053 New Strategies to Inhibit Tumor Cell Proliferation and Tumor Metastasis by S100P Monoclonal Antibodies. Eur J Cancer 2012. [DOI: 10.1016/s0959-8049(12)71664-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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109
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Hernandez J, Masa M, Messeguer R, Mitjans F, Adan J, Martinez J, Coll T, Padilla L, Dakhel S, Hervas R. 1058 S100A4 Acts Synergistically With VEGF in Promoting Angiogenesis and a Neutralizing Monoclonal Antibody Against S100A4 Could Be a Novel Strategy to Combat Solid Tumors. Eur J Cancer 2012. [DOI: 10.1016/s0959-8049(12)71669-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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110
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French K, Wold J, Martinez J, Hoesch R. Calculation of Infarct-Penumbra Mismatch on CT Perfusion Imaging Using the ABC/2 Method (P05.245). Neurology 2012. [DOI: 10.1212/wnl.78.1_meetingabstracts.p05.245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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111
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Sebert M, Pilz C, Hansen C, Martinez J, Penzel T, Fietze I. Langzeitregistrierung und Analyse nächtlicher Lungengeräusche bei obstruktiver Schlafapnoe. Pneumologie 2012. [DOI: 10.1055/s-0032-1302541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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112
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Luo J, Martinez J, Yin X, Sanchez A, Tripathy D, Grammas P. Hypoxia induces angiogenic factors in brain microvascular endothelial cells. Microvasc Res 2012; 83:138-45. [PMID: 22100491 PMCID: PMC3278542 DOI: 10.1016/j.mvr.2011.11.004] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2011] [Revised: 09/28/2011] [Accepted: 11/02/2011] [Indexed: 01/01/2023]
Abstract
Hypoxia is increasingly recognized as an important contributing factor to the development of brain diseases such as Alzheimer's disease (AD). In the periphery, hypoxia is a powerful regulator of angiogenesis. However, vascular endothelial cells are remarkably heterogeneous and little is known about how brain endothelial cells respond to hypoxic challenge. The objective of this study is to characterize the effect of hypoxic challenge on the angiogenic response of cultured brain-derived microvascular endothelial cells. Brain endothelial cell cultures were initiated from isolated rat brain microvessels and subjected to hypoxia (1% O(2)) for various time periods. The results showed that hypoxia induced rapid (≤ 0.5h) expression of hypoxia-inducible factor 1α (HIF-1α) and that cell viability, assessed by MTT assay, was unaffected within the first 8h. Examination of brain endothelial cell cultures for pro- and anti-angiogenic proteins by western blot, RT-PCR and ELISA revealed that within 0.5 to 2h of hypoxia levels of vascular endothelial growth factor and endothelin-1 mRNA and protein were elevated. The expression of heme oxygenase-1 also increased but only after 8h of hypoxia. In contrast, similar hypoxia exposure evoked a decrease in endothelial nitric oxide synthase and thrombospondin-2 levels. Exposure of brain endothelial cell cultures to hypoxia resulted in a significant (p<0.001) decrease (94%) in tube length, an in vitro index of angiogenesis, compared to control cultures. The data indicate that, despite a shift toward a pro-angiogenic phenotype, hypoxia inhibited vessel formation in brain endothelial cells. These results suggest that in brain endothelial cells expression of angiogenic factors is not sufficient for the development of new vessels. Further work is needed to determine what factors/conditions prevent hypoxia-induced angiogenic changes from culminating in the formation of new brain blood vessels and what role this may play in the pathologic changes observed in AD and other diseases characterized by cerebral hypoxia.
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Havelka G, Rodriguez M, Moreira E, Tshilis N, Wang Z, Martinez J, Kibbe M. Effective Inhibition of Neointimal Hyperplasia Using A Nitric Oxide-diffusible Balloon Catheter. J Surg Res 2012. [DOI: 10.1016/j.jss.2011.11.872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Rodriguez M, Emond Z, Wang Z, Martinez J, Jiang Q, Kibbe M. Insulin Drives the Efficacy of Nitric Oxide Differently in Type 1 Versus Type 2 Diabetic Rats. J Surg Res 2012. [DOI: 10.1016/j.jss.2011.11.883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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115
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Gregory E, Martinez J, Flynn M, Jiang Q, Webb A, Ameer G, Kibbe M. A Novel All-Trans Retinoic Acid Perivascular Wrap Reduces Neointimal Hyperplasia Following Arterial Balloon Injury. J Surg Res 2012. [DOI: 10.1016/j.jss.2011.11.871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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116
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Jaramillo F, Sanz J, Montesinos P, Martinez-Cuadron D, Lorenzo I, Palau J, Martin G, Jarque I, De La Rubia J, Moscardó F, Martinez J, Sanz M, Sanz G. Cord Blood Transplantation from Unrelated Donors Versus Stem Cell Transplantation from HLA-Identical Sibling in Adults with Philadelphia-Positive Acute Lymphoblastic Leukemia. Biol Blood Marrow Transplant 2012. [DOI: 10.1016/j.bbmt.2011.12.368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Sanz J, Jaramillo F, Montesinos P, Martinez-Cuadron D, Lorenzo I, Palau J, Martin G, Jarque I, De La Rubia J, Moscardo F, Martinez J, Sanz M, Sanz G. Epstein-Barr Virus-Related Complications (EBV-RC) After Umbilical Cord Blood Transplantation (UCBT) for Adult Patients with High-Risk Hematologic Malignancies. Biol Blood Marrow Transplant 2012. [DOI: 10.1016/j.bbmt.2011.12.536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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118
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Windauer LB, Martinez J, Rapoport D, Wassner D, Benech-Arnold R. Germination responses to temperature and water potential in Jatropha curcas seeds: a hydrotime model explains the difference between dormancy expression and dormancy induction at different incubation temperatures. ANNALS OF BOTANY 2012; 109:265-273. [PMID: 21917817 PMCID: PMC3241573 DOI: 10.1093/aob/mcr242] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2011] [Accepted: 08/10/2011] [Indexed: 05/27/2023]
Abstract
BACKGROUND AND AIMS Jatropha curcas is a drought-resistant tree whose seeds are a good source of oil that can be used for producing biodiesel. A successful crop establishment depends on a rapid and uniform germination of the seed. In this work we aimed to characterize the responses of J. curcas seeds to temperature and water availability, using thermal time and hydrotime analysis, METHODS Thermal and hydrotime analysis was performed on germination data obtained from the incubation of seeds at different temperatures and at different water potentials. KEY RESULTS Base and optimum temperatures were 14·4 and 30 °C, respectively. Approximately 20 % of the seed population displayed absolute dormancy and part of it displayed relative dormancy which was progressively expressed in further fractions when incubation temperatures departed from 25 °C. The thermal time model, but not the hydrotime model, failed to describe adequately final germination percentages at temperatures other than 25 °C. The hydrotime constant, θ(H), was reduced when the incubation temperature was increased up to 30 °C, the base water potential for 50 % germination,Ψ(b(50)), was less negative at 20 and 30 °C than at 25 °C, indicating either expression or induction of dormancy. At 20 °C this less negative Ψ(b(50)) explained satisfactorily the germination curves obtained at all water potentials, while at 30 °C it had to be corrected towards even less negative values to match observed curves at water potentials below 0. Hence, Ψ(b(50)) appeared to have been further displaced to less negative values as exposure to 30 °C was prolonged by osmoticum. These results suggest expression of dormancy at 20 °C and induction of secondary dormancy above 25 °C. This was confirmed by an experiment showing that inhibition of germination imposed by temperatures higher than 30 °C, but not that imposed at 20 °C, is a permanent effect. CONCLUSIONS This study revealed (a) the extremely narrow thermal range within which dormancy problems (either through expression or induction of dormancy) may not be encountered; and (b) the high sensitivity displayed by these seeds to water shortage. In addition, this work is the first one in which temperature effects on dormancy expression could be discriminated from those on dormancy induction using a hydrotime analysis.
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Martin C, Vanthuyne N, Miramon H, Martinez J, Cavelier F. Resolution of protected silaproline for a gram scale preparation. Amino Acids 2011; 43:649-55. [PMID: 22002795 DOI: 10.1007/s00726-011-1112-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2011] [Accepted: 09/26/2011] [Indexed: 10/17/2022]
Abstract
Silaproline is an analogue of proline, which exhibits similar conformational properties. Moreover, the presence of dimethylsilyl group confers to silaproline a higher lipophilicity as well as an improved resistance to biodegradation. This report describes the comparison of two routes to obtain Fmoc-(L) Sip-OH on the gram scale using chiral HPLC resolution.
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Mundy CA, Bunyapen C, Martinez J, Bassig E, Bhatia JS. Atypical presentation of a lacrimal duct cyst. J Perinatol 2011; 31:628-9. [PMID: 21879001 DOI: 10.1038/jp.2011.24] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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121
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Jarret G, Cozannet P, Martinez J, Dourmad J. Effect of different quality wheat dried distiller's grain solubles (DDGS) in pig diets on composition of excreta and methane production from faeces and slurry. Livest Sci 2011. [DOI: 10.1016/j.livsci.2011.04.006] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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122
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Martinez J, Nguyen LD, Reutter W, Fan H, Saenger W, Moniot S. Structures of N-acetylmannosamine kinase in complex with ADP/ATP for drug design. Acta Crystallogr A 2011. [DOI: 10.1107/s0108767311092208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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123
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Pirnik Z, Bundziková J, Holubová M, Pýchová M, Fehrentz JA, Martinez J, Zelezná B, Maletínská L, Kiss A. Ghrelin agonists impact on Fos protein expression in brain areas related to food intake regulation in male C57BL/6 mice. Neurochem Int 2011; 59:889-95. [PMID: 21843570 DOI: 10.1016/j.neuint.2011.08.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2011] [Revised: 07/27/2011] [Accepted: 08/01/2011] [Indexed: 12/18/2022]
Abstract
Many peripheral substances, including ghrelin, induce neuronal activation in the brain. In the present study, we compared the effect of subcutaneously administered ghrelin and its three stable agonists: Dpr(3)ghr ([Dpr(N-octanoyl)(3)] ghrelin) (Dpr - diaminopropionic acid), YA GHRP-6 (H-Tyr-Ala-His-DTrp-Ala-Trp-DPhe-Lys-NH(2)), and JMV1843 (H-Aib-DTrp-D-gTrp-CHO) on the Fos expression in food intake-responsive brain areas such as the hypothalamic paraventricular (PVN) and arcuate (ARC) nuclei, the nucleus of the solitary tract (NTS), and area postrema (AP) in male C57BL/6 mice. Immunohistochemical analysis showed that acute subcutaneous dose of each substance (5mg/kg b.w.), which induced a significant food intake increase, elevated Fos protein expression in all brain areas studied. Likewise ghrelin, each agonist tested induced distinct Fos expression overall the PVN. In the ARC, ghrelin and its agonists specifically activated similarly distributed neurons. Fos occurrence extended from the anterior (aARC) to middle (mARC) ARC region. In the latter part of the ARC, the Fos profiles were localized bilaterally, especially in the ventromedial portions of the nucleus. In the NTS, all substances tested also significantly increased the number of Fos profiles in neurons, which also revealed specific location, i.e., in the NTS dorsomedial subnucleus (dmNTS) and the area subpostrema (AsP). In addition, cells located nearby the NTS, in the AP, also revealed a significant increase in number of Fos-activated cells. These results demonstrate for the first time that ghrelin agonists, regardless of their different chemical nature, have a significant and similar activating impact on specific groups of neurons that can be a part of the circuits involved in the food intake regulation. Therefore there is a real potency for ghrelin agonists to treat cachexia and food intake disorders. Thus, likewise JMV1843, the other ghrelin agonists represent substances that might be involved in trials for clinical purposes.
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Menezes AM, Dumith S, Martinez J, Silva AE, Cascaes A, Ferreira F, Dominguez G, Franca G, Dame J, Ngale K, Anselmi L. P2-187 Mental health and smoking among adolescents from a cohort in Southern Brazil. Br J Soc Med 2011. [DOI: 10.1136/jech.2011.142976j.22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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125
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Henry L, Le Gallic L, Garcin G, Coux O, Jumez N, Roger P, Lavabre-Bertrand T, Martinez J, Meunier L, Stoebner P. Proteolytic activity and expression of the 20S proteasome are increased in psoriasis lesional skin. Br J Dermatol 2011; 165:311-20. [DOI: 10.1111/j.1365-2133.2011.10447.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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