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Barrabes N, Cornado D, Foettinger K, Dafinov A, Llorca J, Medina F, Rupprechter G. Hydrodechlorination of trichloroethylene on noble metal promoted Cu-hydrotalcite-derived catalysts. J Catal 2009. [DOI: 10.1016/j.jcat.2009.02.015] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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de Berrazueta JR, Gómez de Berrazueta JM, Amado Señarís JA, Peña Sarabia N, Fernández Viadero C, García-Unzueta MT, Sáez de Adana M, Sanchez Ovejero CJ, Llorca J. A diet enriched with mackerel (Scomber scombrus)-derived products improves the endothelial function in a senior population (Prevención de las Enfermedades Cardiovasculares: Estudio Santoña--PECES project). Eur J Clin Invest 2009; 39:165-73. [PMID: 19260945 DOI: 10.1111/j.1365-2362.2008.02072.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND Regular consumption of fish reduces cardiovascular risks. Here, we investigate if the consumption of products with mackerel (Scomber scombrus) with 8.82 g of eicosapentaenoic acid (EPA) + docosahexaenoic acid (DHA) content per 100 g of product improves parameters of endothelial function in a controlled population. MATERIALS AND METHODS Subjects maintained a 12-week diet with products with mackerel. The population consisted of 58 senior subjects (12 withdrawals, 25 women), aged 82.08 +/- 8.13 years (Group A). Twenty-three senior subjects (13 women) on a regular diet were used as the control group (Group B). Subjects of Group A received 57 portions throughout 12 weeks (four to five portions a week of products with a mean EPA + DHA content of 2.5 g a day). A continuous follow-up and a final evaluation were performed to determine the level of consumption. Plasma samples were stored at -70 degrees C for a biochemical study. Endothelial function was analysed by reactive hyperemia with a mercury strain gauge plethysmography with measurement of blood flow in the forearm, both baseline and at the end of the 12-week diet. RESULTS Endothelium-dependent vasodilatation significantly increased in Group A subjects (P < 0.001). No changes were found in Group B. The subgroup analyses showed that improvements were produced in Group A subjects without cardiovascular disease (P < 0.001). Nitrites/nitrates and von Willebrand factor plasma concentrations were higher in participants after the 12-week diet. CONCLUSIONS The consumption of mackerel meat products improves endothelium-dependent, flow-mediated vasodilatation in a senior population. This finding might explain some of the cardioprotective effects of fish consumption.
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Gonzalez-Gay MA, Garcia-Unzueta MT, Berja A, Gonzalez-Juanatey C, Miranda-Filloy JA, Vazquez-Rodriguez TR, de Matias JM, Martin J, Dessein PH, Llorca J. Anti-TNF-alpha therapy does not modulate leptin in patients with severe rheumatoid arthritis. Clin Exp Rheumatol 2009; 27:222-228. [PMID: 19473561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
OBJECTIVE The adipocytokine leptin regulates weight centrally and participates in the regulation of the immune and inflammatory responses. Chronic systemic inflammation is of major importance in the development of atherosclerosis in rheumatoid arthritis (RA). In the present study we investigated whether inflammation, obesity or both of these characteristics are potential determinants of circulating leptin concentrations in a group of RA patients on periodical treatment with the TNF-alpha-blocker-infliximab due to severe disease. We also assessed whether the infusion of infliximab may alter circulating leptin concentrations in patients with severe RA. METHODS We investigated 33 patients with RA on periodical treatment with infliximab. Serum leptin levels were determined immediately prior to and after infliximab infusion. RESULTS There was a positive correlation between body mass index of RA patients and baseline serum level of leptin (rho=0.665, p<0.001). Apart from a significant correlation with VCAM-1 (rho=0.349, p=0.04), no significant correlations between baseline leptin levels and the age at the time of the study or at the onset of the disease, disease duration, ESR and CRP levels, DAS28, lipids, insulin sensitivity, adhesion molecules, resistin, adiponectin, ghrelin or the cumulative prednisone dose at the time of the study were found. Leptin levels did not change upon infliximab infusion (p=0.48). CONCLUSION In RA patients on TNF-alpha blocker treatment, circulating leptin levels are unrelated to disease activity but constitute a manifestation of adiposity. The beneficial effect of anti-TNF-alpha therapy on cardiovascular mortality in RA does not seem to be mediated by reduction in serum levels of leptin.
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Gonzalez-Gay MA, Gonzalez-Juanatey C, Vazquez-Rodriguez TR, Llorca J. The use of carotid ultrasonography in the assessment of subclinical atherosclerosis and the paradoxical effect of corticosteroids on atherosclerosis in patients with rheumatoid arthritis. Clin Exp Rheumatol 2009; 27:S141; author reply S141. [PMID: 19646362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
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Gonzalez-Gay MA, Llorca J, Palomino-Morales R, Gomez-Acebo I, Gonzalez-Juanatey C, Martin J. Influence of nitric oxide synthase gene polymorphisms on the risk of cardiovascular events in rheumatoid arthritis. Clin Exp Rheumatol 2009; 27:116-119. [PMID: 19327239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
OBJECTIVE Complex interactions between environmental and genetic determinants in both the host immune system and the vasculature may operate modifying the vascular risk in rheumatoid arthritis (RA). An increased incidence of cardiovascular (CV) events in RA patients carrying HLA-DRB1 shared epitope alleles, in particular HLA-DRB1*0404, has recently been found. In the present study we have assessed the potential contribution of inducible and endothelial nitric oxide synthase (NOS2A and NOS3) gene polymorphisms to CV events in a cohort of patients with rheumatoid arthritis (RA). Also, interactions between NOS2A or NOS3 gene polymorphisms and HLA-DRB1 alleles for the risk of developing CV events were assessed. PATIENTS AND METHODS One hundred and eighty-two consecutive patients fulfilling the 1987 American College of Rheumatology classification criteria for RA seen at the Rheumatology outpatient clinic of Hospital Xeral Calde, Lugo, Northwest Spain, between March and September 1996 were included. Patients were genotyped by PCR based techniques for a multiallelic (CCTTT)n repeat in the promoter region of the NOS2A gene and for a T/C polymorphism at position -786 in the promoter region and a polymorphism in exon 7 (298Glu/Asp or 5557G/T) of the NOS3 gene. They were prospectively followed and clinical records were examined until patient's death or September 1, 2005. At the end of the study 39 (21%) patients had experienced CV events. RESULTS No significant differences in allele or genotype frequencies for the NOS2A promoter CCTTT repeat microsatellite and NOS3 gene polymorphisms between RA patients with or without CV events were found. However, an increased frequency of CV events was observed in RA patients who carried the HLA-DRB1*0404 allele and were homozygous for the NOS3 (-786) TT genotype (OR: 9.06 [95% CI: 1.29-63.37]; p= 0.03) or for the presence of long NOS2A alleles (OR: 11.7 [95% CI: 1.53-88.4]); p= 0.02). CONCLUSIONS Our results show that NOS2A or NOS3 gene polymorphisms do not infer a direct risk for CV events in RA. However, some interactions between NOS gene polymorphisms and HLA-DRB1 alleles confer and increased risk of developing CV events in patients with RA.
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Arbaizar B, Gómez-Acebo I, Llorca J. Quality of Reporting Controlled Clinical Trials on Treatment of the Acute Mania Phase of Bipolar Disorder with New Antipsychotic Drugs. PHARMACOPSYCHIATRY 2008; 41:240-1. [DOI: 10.1055/s-0028-1083817] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Gonzalez-Gay MA, Garcia-Unzueta MT, Berja A, Vazquez-Rodriguez TR, Gonzalez-Juanatey C, de Matias JM, Martin J, Dessein PH, Llorca J. Anti-tumour necrosis factor alpha therapy modulates ghrelin in patients with severe rheumatoid arthritis. Ann Rheum Dis 2008; 67:1644-6. [PMID: 18854515 DOI: 10.1136/ard.2008.088773] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Gonzalez-Gay MA, Llorca J, Garcia-Unzueta MT, Gonzalez-Juanatey C, De Matias JM, Martin J, Redelinghuys M, Woodiwiss AJ, Norton GR, Dessein PH. High-grade inflammation, circulating adiponectin concentrations and cardiovascular risk factors in severe rheumatoid arthritis. Clin Exp Rheumatol 2008; 26:596-603. [PMID: 18799090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
OBJECTIVE To assess whether obesity and systemic inflammation are potential determinants of circulating adiponectin concentrations and whether low adiponectin levels cluster with metabolic syndrome features that are previously documented cardiovascular risk factors in rheumatoid arthritis (RA). METHODS We investigated 33 RA patients who were treated with the TNF-alpha antagonist infliximab, immediately prior to an infliximab infusion. Adiponectin levels were also determined immediately after administration of an infliximab dose. RESULTS Adiponectin concentrations correlated with age (R=0.465, p=0.008) and were higher in women (mean [95% confidence interval]=21,595 [15,366 to 30,349] ng/ml) than in men (9,310 [5,653 to 15,335] ng/ml)(p=0.008). C-reactive protein (CRP) levels correlated with circulating adiponectin concentrations (partial (p) R=-0.370, p=0.04), independent of age and gender. By contrast, the body mass index (BMI) did not correlate with adiponectin levels (pR=-0.039, p=0.8). Adiponectin concentrations correlated with triglycerides/HDL cholesterol ratios (pR=-0.396, p=0.03), total cholesterol/HDL cholesterol ratios (pR=-0.444, p=0.01) and high fasting plasma glucose levels (pR=-0.366, p=0.04), independent of CRP levels and the BMI. Adiponectin levels did not change (p=0.3) upon infliximab administration. CONCLUSION In this cohort, high-grade inflammation was independently and negatively correlated with circulating adiponectin concentrations whereas low adiponectin levels clustered with metabolic syndrome features that reportedly contribute to atherogenesis in RA. Circulating adiponectin may be involved in cardiovascular disease in RA. The impact of inflammation on circulating adiponectin concentrations is not likely to be TNF-alpha mediated in RA.
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Palma S, Perez-Iglesias R, Prieto D, Pardo R, Llorca J, Delgado-Rodriguez M. Iron but not folic acid supplementation reduces the risk of low birthweight in pregnant women without anaemia: a case-control study. J Epidemiol Community Health 2008; 62:120-4. [PMID: 18192599 DOI: 10.1136/jech.2006.052985] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
OBJECTIVE To assess whether iron and folic acid supplementation reduce the risk of low birthweight (LBW) in women without anaemia. DESIGN Case-control study. SETTING University Hospital of Cantabria. STUDY POPULATION Cases were 322 mothers without anaemia delivering a singleton infant of less than 2500 g. Controls were 934 mothers without anaemia delivering a term non-small-for-gestational-age infant. DATA COLLECTION Data on iron and folic acid supplementation were obtained from prenatal chart record and personal interview. Data on risk factors for LBW were also gathered. RESULTS Agreement between the two sources of information was good (82% for folic acid and 94% for iron). Odds ratios yielded from the two sources were very close. Folic acid only (15 mg/day) was unrelated to LBW, whereas iron supplementation (80 mg ferrous sulphate) was associated with a lower risk of LBW (odds ratio (OR) 0.58, 95% CI 0.34 to 0.98), adjusted for smoking, maternal education, body mass index, obstetric diseases during pregnancy, weight gain during pregnancy, and previous LBW. The results of iron plus folic acid were similar to those for iron (OR 0.56, 95% CI 0.33 to 0.96). There was a significant trend towards a lower risk of LBW (p<0.001) with the duration of iron supplementation. After stratifying by the type of LBW, the trend was also significant for any kind of LBW. CONCLUSIONS Iron supplementation is associated with a lower risk of LBW in pregnant women without anaemia.
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Lopez-Diaz MJ, Llorca J, Gonzalez-Juanatey C, Peña-Sagredo JL, Martin J, Gonzalez-Gay MA. Implication of the age in the clinical spectrum of giant cell arteritis. Clin Exp Rheumatol 2008; 26:S16-S22. [PMID: 18799048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
OBJECTIVE To assess the potential influence of the age in the clinical spectrum of giant cell arteritis (GCA). METHODS The case records of all patients diagnosed with biopsy-proven GCA at the Department of Medicine of the Hospital Xeral-Calde (Lugo, Northwest Spain) between 1981 and 2006 were reviewed. RESULTS During the period of study, 273 Lugo residents were diagnosed with biopsy-proven GCA. The mean age +/- standard deviation at the time of disease diagnosis was 75.1+/-6.8 years (median: 75 years; interquartile range 71-80 years). A longer delay to the diagnosis was observed in patients younger than 70 years of age (13.2+/-12.8 weeks) compared to those 70 years and older (9.4+/-10.2 weeks) (p=0.03). Patients younger than 70 years presented more frequently polymyalgia rheumatica (p=0.02), cerebrovascular accidents (p=0.004), peripheral arteriopathy of recent onset due to large artery stenosis (p=0.03) and high alkaline phosphatase values (p=0.001) than those 70 years and older. Individuals 70-79 years of age at the time of disease diagnosis had ESR values (90.2+/-22.8 mm/1st hour) lower than those observed in patients younger than 70 years (98.3+/-22.2 mm/1st hour) or 80 years and older (99.5+/-20.6 mm/1st hour) (p=0.005). However, no significant differences in the frequency of visual ischemic complications according to the age at the time of disease diagnosis were observed. CONCLUSION The results from this study display differences in the clinical spectrum of the disease according to the age of disease onset.
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Gonzalez-Gay MA, Garcia-Unzueta MT, Gonzalez-Juanatey C, Miranda-Filloy JA, Vazquez-Rodriguez TR, De Matias JM, Martin J, Dessein PH, Llorca J. Anti-TNF-alpha therapy modulates resistin in patients with rheumatoid arthritis. Clin Exp Rheumatol 2008; 26:311-316. [PMID: 18565254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
OBJECTIVE Chronic systemic inflammation plays a pivotal role in the development of atherosclerosis in rheumatoid arthritis (RA). In the present study, we investigated whether anti-TNF-alpha antagonist-monoclonal antibody-infliximab administration alters circulating levels of resistin, a proinflammatory adipokine. We further assessed associations of circulating resistin concentrations with CRP and ESR levels, platelet counts and metabolic syndrome and demographic characteristics in RA patients on periodical treatment with infliximab. METHODS We investigated 33 patients with RA on periodical treatment with infliximab. Serum resistin levels were determined immediately prior to and after infliximab infusion. RESULTS Upon infliximab administration, mean (SD) serum resistin concentrations (ng/ml) decreased from 21.9 (9.9) to 17.4 (8.9) (p=0.005). Also, a significant association between the mean ESR (r=0.405; p=0.03) and CRP (r=0.571; p=0.0005) from disease diagnosis and ESR (r=0.486; p=0.004), CRP (r=0.599; p=0.0005) and platelet count (r=0.559; p=0.0007) at the time of the study and baseline resistin levels was found. CONCLUSION The present study shows that anti-TNF-alpha therapy results in a rapid reduction of serum resistin levels in patients with RA. It also confirms a close association between laboratory markers of inflammation, particularly CRP and resistin levels. These observations support a potential role of resistin in the inflammatory cascade in RA.
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Mateo I, Llorca J, Infante J, Rodríguez-Rodríguez E, Berciano J, Combarros O. Gene–gene interaction between 14-3-3 zeta and butyrylcholinesterase modulates Alzheimer's disease risk. Eur J Neurol 2008; 15:219-22. [DOI: 10.1111/j.1468-1331.2008.02059.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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González Castro A, Suberviola Cañas B, Quesada Suescun A, Holanda Peña M, González Fernández C, Llorca J. Valoración de la capacidad preoperatoria al ejercicio como factor predictivo de supervivencia en enfermos sometidos a trasplante pulmonar. Med Intensiva 2008; 32:65-70. [DOI: 10.1016/s0210-5691(08)70909-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Llorca J, Rodríguez-Rodríguez E, Dierssen-Sotos T, Delgado-Rodríguez M, Berciano J, Combarros O. Meta-analysis of genetic variability in the beta-amyloid production, aggregation and degradation metabolic pathways and the risk of Alzheimer's disease. Acta Neurol Scand 2008; 117:1-14. [PMID: 17854420 DOI: 10.1111/j.1600-0404.2007.00899.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND Variants in genes encoding enzymes involved in production, aggregation or degradation of beta-amyloid are potential risk factors for sporadic Alzheimer's disease (AD). METHODS Meta-analyses on AD association with BACE1 exon 5, BACE1 intron 5, FE65 intron 13, CYP46 intron 2, alpha(1)-antichymotrypsine Ala17Thr, bleomycin hydrolase I443V, lectin-like oxidized low-density lipoprotein receptor (OLR1) 3'-UTR (+1071) and (+1073), and very-low-density lipoprotein receptor (VLDLR) 5'-UTR (CGG-repeat) polymorphisms. RESULTS In BACE1 exon 5, genotype CC+CT acts as a protective factor in Apolipoprotein E (ApoE) epsilon 4 carriers [odds ratio (OR) = 0.57; 95% confidence interval (CI): 0.38-0.88], and as a risk factor in ApoE epsilon 4 non-carriers (OR = 1.33; 95% CI: 1.00-1.78). OLR1 3'-UTR (+1073) allele C is associated with increased risk (OR = 1.23; 95% CI: 1.01-1.50). VLDLR 5'-UTR genotype 2 is associated with increased risk (OR = 1.70; 95% CI: 1.09-2.63) in the Asian population and is protective (OR = 0.48; 95% CI: 0.26-0.86) in the non-Asian population. Other studied polymorphisms are not associated with AD. CONCLUSIONS The overall impact on AD risk of the genes for which meta-analyses are now available is rather limited. Additional meta-analyses of other different genes encoding for A beta production, aggregation and degradation mediators might help in determining the risk profile for AD.
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González-Castro A, Llorca J, Suberviola B, Vallejo A, Ortíz-Melón F, Miñambres E. Early outcome following single versus bilateral lung transplantation in recipients 60 years of age and older. CRITICAL CARE : THE OFFICIAL JOURNAL OF THE CRITICAL CARE FORUM 2008. [PMCID: PMC4088627 DOI: 10.1186/cc6477] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Miñambres E, Llorca J, Suberviola B, Vallejo A, Ortíz-Melón F, González-Castro A. Influence of donor gender in early outcome after lung transplantation. Crit Care 2008. [PMCID: PMC4088626 DOI: 10.1186/cc6476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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Fernández F, Rodríguez-Sanjuán JC, Mayorga M, Llorca J, García RA, Trugeda S, de la Torre F, Gómez-Fleitas M. Prognostic value of flow cytometry in surgically treated primary gastric lymphoma. REVISTA ESPANOLA DE ENFERMEDADES DIGESTIVAS 2007; 98:817-27. [PMID: 17198474 DOI: 10.4321/s1130-01082006001100003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
AIM To investigate whether flow cytometry could help to define the optimal therapeutic strategy of primary gastric lymphomas. MATERIAL AND METHOD Retrospective study of 46 patients having primary gastric lymphoma--according to Dawson criteria--in Ann Arbor stage IE and IIE, who were surgically treated. From selected paraffin-embedded tissue blocks of the tumor, DNA content was studied by flow cytometry (FC). Other pathological tumor features were analysed by hematoxiline-eosine and Giemsa stains as well as immunohistochemical study; any possible influence on postoperative survival was investigated through statistical analysis. RESULTS The DNA ploidy pattern was diploid in 40 cases (87%) and aneuploid (hyperdiploid) in 6 (13%). Postoperative survival probability (PSP) was 62.7% at 5 years. Statistical analysis showed significant prognostic value for Ann Arbor classification--with higher PSP for stage IE (p = 0.009)--and FC parameters: diploid tumors had higher PSP than aneuploid tumors. Also tumors having S-phase (p = 0.044) or G2-M phase values (p = 0.023) under the respective mean values had higher PSP. No influence on PSP was found for wall invasion, Helicobacter pylori infection, Isaacson's histologic type or resection margin involvement. No significant relationship was appreciated between Isaacson's histologic type and DNA ploidy patterns. CONCLUSION FC could be useful in assessing gastric lymphoma prognosis.
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Rodríguez-Rodríguez E, Sánchez-Juan P, Mateo I, Llorca J, Infante J, García-Gorostiaga I, Berciano J, Combarros O. Serum levels and genetic variation of TGF-beta1 are not associated with Alzheimer's disease. Acta Neurol Scand 2007; 116:409-12. [PMID: 17986101 DOI: 10.1111/j.1600-0404.2007.00892.x] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
OBJECTIVE As transforming growth factor-beta1 (TGF-beta1) determines important neurotrophic and neuroprotective actions, we postulated serum TGF-beta1 levels could be low in Alzheimer's disease (AD), and TGF-beta1 genetic variation could be associated with AD risk through modulating serum TGF-beta1 levels. METHODS TGF-beta1 (-800) (rs 1800468), (-509) (rs 1800469) and (+869) (rs 1982073) polymorphisms were genotyped in 412 AD patients and 406 controls. We measured serum TGF-beta1 levels (by ELISA) in 63 AD patients and compared them with 77 age- and gender-matched non-demented controls. RESULTS Serum TGF-beta1 levels were not different in AD patients than in controls. Distribution of the allele and genotype frequencies of TGF-beta1 polymorphisms did not differ between AD patients and controls. There was no significant correlation between serum TGF-beta1 levels and TGF-beta1 polymorphisms. CONCLUSION Serum TGF-beta1 concentration is not a potential biomarker for AD, and TGF-beta1 genetic variants (-800, -509, and +869) are not risk factors for AD.
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González-Castro A, Llorca J, Burón J, Suberviola B, Vallejo A, Miñambres E. Evaluation of the Oxygenation Ratio as Long-Term Prognostic Marker After Lung Transplantation. Transplant Proc 2007; 39:2422-4. [PMID: 17889208 DOI: 10.1016/j.transproceed.2007.07.057] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
OBJECTIVE We hypothesized that the arterial blood gas oxygen tension/fraction of inspired oxygen ratio (PaO2/FiO2) would prove to be useful as a mortality marker after lung transplantation (LT). The aims of this study were to define the prevalence of various ranges of PaO2/FiO2 during the first 24 hours after LT and to evaluate which measurement using the PaO2/FiO2 best correlates with mortality. METHODS A retrospective study was performed that included all patients who underwent LT from 1997 to 2005. We collected PaO2/FiO2 ratios at 0, 12, and 24 hours after admission to the intensive care unit (ICU). We classified the 132 patients in 5 groups, based on PaO2/FiO2 (Group 1, PaO2/FiO2 <100; Group 2, PaO2/FiO2 100-199; Group 3, PaO2/FiO2 200-299; Group 4, PaO2/FiO2 300-399; Group 5, PaO2/FiO2 >or=400). The correlation between PaO2/FiO2 and mortality was studied using Cox regression. RESULTS Cox regression analysis showed that PaO2/FiO2 at 0 and 12 hours after admission to the ICU were not useful mortality markers. However, the PaO2/FiO2 at 24 hours after admission to the ICU was a useful long-term prognostic marker. PaO2/FiO2 >100 (groups 2, 3, 4, and 5) at 24 hours was significantly associated with less mortality when a lower PaO2/FiO2 was the reference (hazard Ratio: 0.08, 0.02, 0.05, and 0.02, respectively). On multivariate analysis PaO2/FiO2 >or=100 (groups 2, 3, 4, and 5) at 24 hours was significantly associated with less mortality when a lower PaO2/FiO2 was the reference (hazard ratio: 0.07, 0.003, 0.01, and 0.005, respectively). CONCLUSIONS A value of PaO2/FiO2 >100 mm Hg 24 hours after admission to the ICU is associated with a lower mortality.
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Chimentão R, Medina F, Fierro J, Llorca J, Sueiras J, Cesteros Y, Salagre P. Propene epoxidation by nitrous oxide over Au–Cu/TiO2 alloy catalysts. ACTA ACUST UNITED AC 2007. [DOI: 10.1016/j.molcata.2007.05.008] [Citation(s) in RCA: 83] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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González-Castro A, Suberviola B, Llorca J, González-Mansilla C, Ortiz-Melón F, Miñambres E. Prognosis Factors in Lung Transplant Recipients Readmitted to the Intensive Care Unit. Transplant Proc 2007; 39:2420-1. [PMID: 17889207 DOI: 10.1016/j.transproceed.2007.06.058] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
OBJECTIVE To identify outcome predictors and prognostic factors for survival among lung transplant recipients on readmission to the intensive care unit (ICU). METHODS This was a retrospective study of all lung transplant recipients during a 10-year period from 1997 to 2006. Data collection included age, gender, reason, and type of lung transplantation. Variables specific to individual ICU admissions included admission diagnosis, length of stay, duration of mechanical ventilation, interval from transplantation, Acute Physiology and Chronic Health Evaluation (APACHE) II score on ICU admission, and the identification of systemic organ dysfunction. We used Student t test (or where appropriate, its nonparametric equivalent) or the chi(2) test for comparisons among the patients who died and those who survived their ICU readmissions. RESULTS Among 144 lung transplant patients 28 were later readmitted to the ICU after at least 1 week. The admission diagnosis was sepsis in 20 cases (71.4%). Seventeen patients died during their ICU stay (60.7%). A higher APACHE II score (P = .008), the presence of three or more dysfunctional organs upon readmission (P = .016), and the need for mechanical ventilation (P = .022) were risk factors for mortality. The mortality risk was also higher among the group with a longer delay to ICU readmission (P = .003). DISCUSSION Readmission to the ICU, which is common among lung transplant recipients, was associated with a high mortality. Sepsis was the main cause of ICU readmission and the most frequent cause of death. APACHE II score, need for mechanical ventilation, number of dysfunctional organs, and delay in ICU readmission were important prognostic factors.
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Mateo I, Llorca J, Infante J, Rodríguez-Rodríguez E, Fernández-Viadero C, Peña N, Berciano J, Combarros O. Low serum VEGF levels are associated with Alzheimer's disease. Acta Neurol Scand 2007; 116:56-8. [PMID: 17587256 DOI: 10.1111/j.1600-0404.2006.00775.x] [Citation(s) in RCA: 80] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
OBJECTIVE As vascular endothelial growth factor (VEGF) determines important neurotrophic and neuroprotective actions, we postulated serum VEGF levels could be abnormally low in patients with Alzheimer's disease (AD). METHODS We measured serum VEGF levels (VEGF(165) isoform by ELISA) in 51 patients with AD by National Institute of Neurological and Communicative Disorders and Stroke-Alzheimer's Disease and Related Disorder Association criteria and compared with 66 age- and gender-matched non-demented controls. Patients with AD were stratified into levels of dementia severity by the Clinical Dementia Rating scale. Serum VEGF levels were stratified into upper (>309 pg/ml), middle (207-309 pg/ml), and lower (<207 pg/ml) tertiles. VEGF (-2,578) (rs 699,947) and VEGF (-634) (rs 2,010,963) polymorphisms were genotyped in patients with AD and controls. RESULTS The mean concentration of VEGF in the serum of patients with AD (215.9 pg/ml, SD 101.5) was significantly lower than that of the controls (308.6 pg/ml, SD 223.9, P = 0.004), and decreased serum VEGF levels were associated with AD in a dose-dependent manner, the lower tertile of serum VEGF levels being associated with a fivefold increased risk for AD when compared with the upper tertile. There was no significant correlation between serum VEGF levels and age, sex, APOE alleles, AD dementia severity nor VEGF gene polymorphisms. CONCLUSION Decrease in serum VEGF levels could contribute to the neurodegenerative process in AD.
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Miñambres E, González-Castro A, Rabanal JM, Suberviola B, Ortega FJ, Zurbano F, Díaz-Regañón G, Llorca J. Estudio comparativo de dos soluciones de preservación en la función inicial del trasplante bipulmonar en humanos. Med Intensiva 2007; 31:1-5. [PMID: 17306134 DOI: 10.1016/s0210-5691(07)74763-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
OBJECTIVE Compare the influence of two preservation liquids, Euro-Collins (EC) and Perfadex (P) in the pulmonary graft function in the initial phase of lung transplant in humans. DESIGN Retrospective study. SCOPE Lung transplant unit of the ICU of a university hospital. PATIENTS A total of 79 patients were subjected to a transplant of both lungs. The pulmonary grafts were preserved with EC in 23 cases and with P in 56 cases. VARIABLES OF INTEREST Pulmonary function was assessed on admission in the intensive care unit (ICU) with the PaO2/FiO2 ratio. Mortality, graft dysfunction stay in ICU and time of mechanical ventilation were also assessed at 30 days. RESULTS The PaO2/FiO2 ratio was significantly greater in the P group than in the EC both on admission (p<0.006) and at 12 hours (p=0.032) in the ICU. Graft dysfunction incidence was less in group P than in EC (p<0.045). There were no differences in regards to mortality at 30 days, stay in ICU and time of mechanical ventilation between both groups. CONCLUSION Preservation of the pulmonary graft with P as preservation liquid compared with EC is associated with better graft function in the initial phases of transplant of both lungs and with a decrease in the incidence of graft dysfunction.
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Suberviola B, Gonzalez Castro A, Llorca J, Vallejo A, Gonzalez Mansilla C, Miñambres E. Prognosis factors in lung transplant recipients readmitted to the intensive care unit. Crit Care 2007. [PMCID: PMC4095527 DOI: 10.1186/cc5634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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González-Castro A, Llorca J, Suberviola B, Díaz-Regañón G, Ordóñez J, Miñambres E. Influence of Nutritional Status in Lung Transplant Recipients. Transplant Proc 2006; 38:2539-40. [PMID: 17097994 DOI: 10.1016/j.transproceed.2006.08.084] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To assess the influence of nutritional status on mortality in lung transplant (LT) recipients. METHODS A total of 114 patients underwent lung-transplantation between January 1999 and June 2005. Mortality after lung transplantation was examined based upon body mass index (BMI) categories: BMI < 18.5 kg/m(2) (group I); BMI 18.5 to 24.9 kg/m(2) (group II, reference group); BMI 25 to 27.5 kg/m(2) (group III); and BMI > 27.5 kg/m(2) (group IV). Levels of serum albumin and serum prealbumin were determined before transplantation. We constructed a Cox proportional hazards model for overall survival considering mortality as the outcome. The final model was adjusted by age. RESULTS We analyzed 114 transplants in 112 patients. The population included 44 single and 70 bilateral LTs. Mean recipient age was 53.9 +/- 10.9 years. The hazard ratio of the risk of death in group IV was higher than in the reference group (hazard ratio: 3.55, 95% CI: 1.19 to 10.66; P = .024). Serum prealbumin </=18 g/dL was a risk factor for mortality (hazard ratio: 3.01, 95% CI: 1.21 to 7.51; P = .018). No difference was observed in serum albumin levels related to mortality (P = .089). CONCLUSIONS Pretransplant BMI > 27.5 kg/m(2) was a predictor of increased mortality after transplantation. Low pretransplant prealbumin levels in lung recipients were associated with mortality after transplantation.
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