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Alonso M, Bello M, Arjona D, Gonzalez-Gomez P, Amiñoso C, de Campos J, Isla A, Vaquero J, Gutierrez M, Sarasa J, Rey J, Lopez-Marín I. Mutational study of the 1p located genes p18ink4c, Patched-2, RIZ1 and KIF1B in oligodendrogliomas. Oncol Rep 2005. [DOI: 10.3892/or.13.3.539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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152
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Barrio R, López-Capapé M, Colino E, Mustieles C, Alonso M. Obesidad y síndrome metabólico en la infancia. ACTA ACUST UNITED AC 2005. [DOI: 10.1016/s1575-0922(05)70990-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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153
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Amaya MJ, Colino E, López-Capapé M, Alonso M, Barrio R. Diabetes mellitus tipo 2 en la edad pediátrica. An Pediatr (Barc) 2005; 62:174-7. [PMID: 15701317 DOI: 10.1157/13071318] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In the past two decades, type 2 diabetes mellitus has increased in children and adolescents, especially within certain ethnic groups. This increase has been parallel to the rising prevalence of obesity. Because of the overlap between some clinical characteristics, the differential diagnosis between type 1 and 2 diabetes is difficult. Of 300 diabetic patients in our diabetes section, only three (1 %) had type 2 diabetes. Two patients were obese adolescents with a positive family history of type 2 diabetes mellitus; the third patient was a prepubertal, overweight girl with no family history of this disorder. The diagnosis was incidental in two patients and one patient presented with ketoacidosis. The differences between the three patients reveal the great clinical variability of this disorder and suggest that various underlying factors are involved in the pathophysiology of type 2 diabetes.
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154
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Herrero-Vanrell R, Rincón AC, Alonso M, Reboto V, Molina-Martinez IT, Rodríguez-Cabello JC. Self-assembled particles of an elastin-like polymer as vehicles for controlled drug release. J Control Release 2005; 102:113-22. [PMID: 15653138 DOI: 10.1016/j.jconrel.2004.10.001] [Citation(s) in RCA: 184] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2004] [Accepted: 10/01/2004] [Indexed: 11/28/2022]
Abstract
Elastin-like polymers (ELPs) are a new kind of protein-based polymers showing interesting properties in the biomaterial field. This work explored the use of self-assembled poly(VPAVG) micro- and nanoparticles as vehicles for the controlled release of the model drug dexamethasone phosphate (DMP). Poly(VPAVG) has shown to form stable particles with a size below 3 mum as a water or PBS polymer solution was warmed above its transition temperature ( approximately 30 degrees C). Due to the peculiar composition of the monomer, the formation and redissolution of the self-assembled microparticles shows an interesting hysteresis behaviour by which the particles are formed at this temperature but do not redissolve until a strong undercooling of approximately 12-15 degrees C is achieved. Therefore, the particles, once formed, are stable either at room or body temperature. These self-assembled particles are able to encapsulate significant amounts of the model drug when self-assembling was carried out in a co-solution polymer-DMP. The release profiles showed a sustained DMP release for about 30 days. Being the potential of this new polymeric carrier high, further research is being conducted to functionalise the poly(VPAVG) base as a way to induce a stronger polymer-drug binding and, accordingly, a more sustained release.
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155
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Arjona D, Bello M, Alonso M, Gonzalez-Gomez P, Lomas J, Aminoso C, Lopez-Marin I, Isla A, De Campos J, Vaquero J, Gutierrez M, Villalobo A, Rey J. Molecular analysis of the erbB gene family calmodulin-binding and calmodulin-like domains in astrocytic gliomas. Int J Oncol 2004. [DOI: 10.3892/ijo.25.5.1489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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156
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de la Mata M, Barrera P, Fraga E, Montero JL, de la Torre J, López-Cillero P, Briceño J, Solórzano G, Alonso M. [Liver transplantation in patients with HIV infection]. GASTROENTEROLOGIA Y HEPATOLOGIA 2004; 27:425-8. [PMID: 15461943 DOI: 10.1016/s0210-5705(03)70492-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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157
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Gonzalez-Gomez P, Bello M, Inda M, Alonso M, Arjona D, Amiñoso C, Lopez-Marin I, De Campos J, Sarasa J, Castresana J, Rey J. Deletion and aberrant CpG island methylation of Caspase 8 gene in medulloblastoma. Oncol Rep 2004. [DOI: 10.3892/or.12.3.663] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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158
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Hirose K, Löwe J, Alonso M, Cross RA, Amos LA. 3D electron microscopy of the interaction of kinesin with tubulin. Cell Struct Funct 2004; 24:277-84. [PMID: 15216883 DOI: 10.1247/csf.24.277] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
We have studied the structure of microtubules decorated with kinesin motor domains in different nucleotide states by 3D electron microscopy. Having docked the atomic coordinates of both dimeric ADP.kinesin and tubulin heterodimer into a map of kinesin dimers bound to microtubules in the presence of ADP, we try to predict which regions of the proteins interact in the weakly binding state. When either the presence of 5'-adenylyimidodiphosphate (AMP-PNP) or an absence of nucleotides puts motor domains into a strongly-bound state, the 3D maps show changes in the motor domains which modify their interaction with beta-tubulin. The maps also show differences in beta-tubulin conformation compared with undecorated microtubules or those decorated with weakly-bound motors. Strongly-bound ncd appears to produce an identical change.
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159
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Abstract
Glycogen synthase kinase 3 (GSK-3) in the 21(st) century emerged as one of the most attractive therapeutic target for the development of selective inhibitors as new promising drugs for unmet pathologies including Alzheimer's disease, stroke, bipolar disorders, chronic inflammatory processes, cancer and diabetes type II. The full potential of GSK-3 inhibitors is just starting to be realized but the number of candidates in development provided by both academic centres and pharmaceutical companies have increased exponentially in the last two years. This review discloses recent discoveries and developments on peptides and small molecules targeting GSK-3. Focusing attention on this exciting target could thus reap considerable clinical and economic rewards.
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160
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Barrio R, Alonso M, López-Capapé M, Colino E, Mustieles C. Factores predisponentes al desarrollo de diabetes tipo 2 y riesgo cardiovascular en la infancia. Obesidad, insulinorresistencia, dislipemia e hipertensión: síndrome dismetabólico. ACTA ACUST UNITED AC 2004. [DOI: 10.1016/s1575-0922(04)74623-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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161
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Gonzalez-Gomez P, Bello M, Alonso M, Amiñoso C, Lopez-Marin I, De Campos J, Isla A, Gutierrez M, Rey J. Promoter methylation status of multiple genes in brain metastases of solid tumors. Int J Mol Med 2004. [DOI: 10.3892/ijmm.13.1.93] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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162
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Camarero C, Leon F, Colino E, Redondo C, Alonso M, Gonzalez C, Roy G. Collagenous colitis in children: clinicopathologic, microbiologic, and immunologic features. J Pediatr Gastroenterol Nutr 2003; 37:508-13. [PMID: 14508225 DOI: 10.1097/00005176-200310000-00020] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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163
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Cuende N, Cañón JF, Alonso M, Miranda B, Martín C, Sagredo E. [Results of the period 1998-2001 of the ONT quality control programme]. Nefrologia 2003; 23 Suppl 5:68-72. [PMID: 12833629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/03/2023] Open
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164
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Cuende N, Cañón JF, Alonso M, Martín C, Sagredo E, Miranda B. [ONT Quality control programme for the donation process evaluation]. Nefrologia 2003; 23 Suppl 5:28-31. [PMID: 12833624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/03/2023] Open
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165
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Cuende N, Cañón JF, Alonso M, Martín C, Sagredo E, Miranda B. [Methodology of the external audit procedure of the ONT quality control programme]. Nefrologia 2003; 23 Suppl 5:50-62. [PMID: 12833627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/03/2023] Open
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166
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Cuende N, Cañón JF, Alonso M, Miranda B, Martín C, Sagredo E. [Methodology of the autoevaluation procedure of the ONT quality control programme]. Nefrologia 2003; 23 Suppl 5:32-41. [PMID: 12833625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/03/2023] Open
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167
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Gonzalez-Gomez P, Bello M, Arjona D, Alonso M, Lomas J, De Campos J, Kusak M, Gutierrez M, Sarasa J, Rey J. Aberrant CpG island methylation in neurofibromas and neurofibrosarcomas. Oncol Rep 2003. [DOI: 10.3892/or.10.5.1519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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168
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Perez-Gago M, Serra M, Alonso M, Mateos M, Rio MD. Effect of Solid Content and Lipid Content of Whey Protein Isolate-Beeswax Edible Coatings on Color Change of Fresh-cut Apples. J Food Sci 2003. [DOI: 10.1111/j.1365-2621.2003.tb05744.x] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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169
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Alonso M, Rodríguez Saint-Jean S, Pérez-Prieto SI. Virulence of infectious hematopoietic necrosis virus and Infectious pancreatic necrosis virus coinfection in rainbow trout ( Oncorhynchus mykiss) and nucleotide sequence analysis of the IHNV glycoprotein gene. Arch Virol 2003; 148:1507-21. [PMID: 12898328 DOI: 10.1007/s00705-003-0116-7] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
The outcomes of a coinfection of rainbow trout ( Oncorhynchus mykiss) with Infectious hematopoietic necrosis virus (IHNV) strain S46 and Infectious pancreatic necrosis virus (IPNV) strain S46 was determined after waterborne infection. Trout infected with the IHNV/IPNV.S46 sample, (a mixed sample containing equal infectious titers of the viruses) showed 50% less mortality than fish infected with either of the reference viruses alone. Forty-five days after the coinfection, IPNV antigens were detected by flow cytometry in 49 to 63% of the leukocytes from the surviving trout; whereas, only 9-15.6% of the leukocytes expressed IHNV viral antigens. IPNV was easily detected by reverse transcription-polymerase chain reaction (RT-PCR), whereas, for IHNV, a second step of amplification of a 753 bp fragment corresponding to the internal sequences of the IHNV G gene was necessary to optimize viral detection. The sequence of the IHNV gene involved in virulence, the glycoprotein (G) gene, was determined for the IHNV.S46 and compared with other sequences available in the GenBank. Changes found were not located in the antigenic domains of the glycoprotein and were considered not significant.
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170
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Gonzalez-Gomez P, Bello M, Alonso M, Lomas J, Arjona D, Amiñoso C, De Campos J, Isla A, Gutierrez M, Rey J. Frequent death-associated protein-kinase promoter hypermethylation in brain metastases of solid tumors. Oncol Rep 2003. [DOI: 10.3892/or.10.4.1031] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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171
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Trimarchi H, Mongitore MR, Baglioni P, Forrester M, Freixas EAR, Schropp M, Pereyra H, Alonso M. N-acetylcysteine reduces malondialdehyde levels in chronic hemodialysis patients--a pilot study. Clin Nephrol 2003; 59:441-6. [PMID: 12834176 DOI: 10.5414/cnp59441] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Oxidative stress has been implicated in the development of endothelial damage in hemodialysis (HD). We have assessed the effects of N-acetylcysteine (NAC), a compound with antioxidant effects, on malondialdehyde (MDA), a marker of oxidative stress on lipid peroxidation. METHODS A clinical trial was conducted in which 24 chronic HD patients were divided into 2 groups according to gender, age, time on HD and cause of renal failure. The NAC group (n = 12) received 600 mg of NAC twice a day for 30 days. The remaining patients constituted the control group (n = 12). MDA levels were measured pre- and post-dialysis at the beginning of the study (baseline) and on day 30 (30 days). RESULTS Baseline pre- and post-dialysis MDA levels were not different between both groups and were above normal values. A significant decrease was found in the NAC group when either pre- or post-dialysis MDA levels were compared to the corresponding control group levels on day 30 (pre-dialysis NAC vs control group 3.01 +/- 0.6 vs 4.5 +/- 0.73 micromol/l, p < 0.0001, post-dialysis NAC vs control group 2.76 +/- 0.5 vs 4.39 +/- 0.7 micromol/l, p < 0.0001). Only in the NAC group were pre-dialysis MDA 30-day levels different from pre-dialysis baseline levels (3.01 +/- 0.6 vs 5.07 +/- 1.6 micromol/l, p < 0.002). Post-dialysis MDA 30-day concentrations were significantly lower than post-dialysis MDA baseline levels (2.76 +/- 0.5 vs 4.32 +/- 0.7 micromol/l, p < 0.002) and pre-dialysis MDA 30-day measurements (2.76 +/- 0.5 vs 3.01 +/- 0.6 micromol/l, p < 0.011). CONCLUSIONS MDA levels are elevated in chronic HD patients and are not significantly reduced by HD. NAC significantly reduces malondialdehyde levels in chronic HD patients.
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Gonzalez-Gomez P, Bello M, Lomas J, Arjona D, Alonso M, Amiñoso C, De Campos J, Vaquero J, Sarasa J, Casartelli C, Rey J. Epigenetic changes in pilocytic astrocytomas and medulloblastomas. Int J Mol Med 2003. [DOI: 10.3892/ijmm.11.5.655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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173
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Balderramo DC, Ricchi BN, Marun SG, Scaliter G, Alonso M. Sebastian syndrome: report of the first case in a South American family. Haematologica 2003; 88:ECR17. [PMID: 12745286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2023] Open
Abstract
The Sebastian syndrome (SS) is a MYH9-related disorders, which are an extremely infrequent group of four autosomal dominant illnesses. SS consist of giant platelets, leukocyte inclusions and thrombocytopenia. To our knowledge, there are no case reports of this syndrome in South America. The propositus was a 35-year-old Argentine woman with a history of purpuric lesions in her lower limbs and thrombocytopenia. Idiopathic thrombocytopenia purpura (ITP) was previously diagnosed, but she did not respond to treatment with steroids. Family history failed to provide any evidence of hearing loss, easy bruising, nephritis, renal failure or cataracts. The patient and 11 members of her family were evaluated. The diagnosis of SS was established by demonstrating giant platelets, thrombocytopenia and leukocyte inclusions in peripheral smear in two relatives and by peripheral smear and electronic microscopy in the propositus. MYH9-related disorders should be suspected whenever a patient has a low platelet count or a bleeding diathesis of unknown origin. In these cases, the history, carefully peripheral smear exam, immunocytochemistry and electronic microscopy will be of great help. Differentiation ITP with SS is important to avoid unnecessary diagnostic studies and treatments.
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174
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Alguacil FJ, Alonso M. Chromium(VI) removal through facilitated transport using CYANEX 923 as carrier and reducing stripping with hydrazine sulfate. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2003; 37:1043-1047. [PMID: 12666939 DOI: 10.1021/es020585s] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The transport of chromium(VI) through a flat-sheet supported liquid membrane (FSSLM) containing CYANEX 923 (mixture of phosphine oxides) as a carrier has been studied. The permeation of the metal is investigated as a function of various experimental variables: hydrodynamic conditions, concentration of chromium(VI) and HCI in the feed phase, CYANEX 923 concentration and diluent in the membrane, and strippant concentration in the receiving phase. By using hydrazine sulfate in the receiving phase, chromium(VI) is immediately reduced to the less toxic chromium(III). The aqueous mass transfer coefficient and the thickness of the aqueous boundary layer were calculated from the experimental results. The selectivity of CYANEX 923-based FSSLM toward different metal ions and the behavior of the system against other carriers is presented.
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175
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Díez‐Porres L, Muñoz‐Fernández S, Aguado P, Alonso M, Martín‐Mola E. Remitting seronegative symmetrical synovitis with pitting oedema as the first manifestation of psoriatic arthropathy. Rheumatology (Oxford) 2002. [DOI: 10.1093/rheumatology/41.11.1333-b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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