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Castillo C, Benedito J, Pereira V, Sotillo J, Suárez A, Méndez J, Vázquez P, Hernández J. Influence of grain processing in regard to serum metabolites and enzymes for finishing bull calves. JOURNAL OF ANIMAL AND FEED SCIENCES 2011. [DOI: 10.22358/jafs/66202/2011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Suárez A, Tobar M, Yáñez A, Pérez I, Sampedro J, Amigó V, Candel J. Modeling of phase transformations of Ti6Al4V during laser metal deposition. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/j.phpro.2011.03.083] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Cuenca F, Fernández C, Devesa MJ, López-Alonso G, Mayol J, Suárez A, Ortega L, Díaz-Rubio M, Ladero JM. Predictive baseline criteria of primary therapeutic failure in chronic hepatitis C genotype 1. REVISTA ESPANOLA DE ENFERMEDADES DIGESTIVAS 2010; 102:234-8. [PMID: 20486745 DOI: 10.4321/s1130-01082010000400003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
BACKGROUND AND AIMS more than half of patients with genotype 1 chronic hepatitis C (CHC) do not achieve a sustained viral response (SVR) to current antiviral therapy due to primary non-response, relapse or intolerance. Factors related to each of these unfavorable outcomes are different and the last two may be partially prevented. Our aim was to identify basal criteria to predict the risk of primary failure. PATIENTS AND METHODS we included 251 consecutive patients (152 males) from a single centre, infected with HCV genotype 1 and not previously treated. SVR was achieved in 141 patients and primary failure in 110. RESULTS high vs. low viral load (> 400,000 IU/mL, OR = 6.17; 95% CI: 2.50-15.23), high serum GGT (> 60 IU/mL, OR = 4.25; 95% CI: 2.49-7.24), low serum cholesterol ( < 178 mg/dL, OR = 2.93; 95% CI: 1.75-4.92) and older age (> 47 yrs., OR = 1.79; 95% CI: 1.08-2.96) were associated to the risk of primary failure in the lineal logistic regression analysis. From the 58 patients carrying all the first three negative criteria, 46 (79.3%) were primary non-responders. CONCLUSIONS the negative basal profile identified in this study is based on easily available data and provides information about the risk of primary therapeutic failure, and may help to decide whether antiviral therapy should be offered to a single patient.
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Garcia-Estevez L, Suárez A, Calvo I, Ugidos L, Miró C, Duran H, Quijano Y, Herrero M, López-Ríos F, Hidalgo M. Pharmacodynamic study of the biologic effects of GW572016 (lapatinib) in cellular apoptosis and signaling pathways in HER2-positive ductal carcinoma in situ (DCIS) of the breast. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.e11044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Javierre C, Segura R, Ventura JL, Suárez A, Rosés JM. L-Tryptophan Supplementation Can Decrease Fatigue Perception During an Aerobic Exercise with Supramaximal Intercalated Anaerobic Bouts in Young Healthy Men. Int J Neurosci 2010; 120:319-27. [DOI: 10.3109/00207450903389404] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Escaff S, Fernández JM, González LO, Suárez A, González-Reyes S, González JM, Vizoso FJ. Study of matrix metalloproteinases and their inhibitors in prostate cancer. Br J Cancer 2010; 102:922-9. [PMID: 20160732 PMCID: PMC2833257 DOI: 10.1038/sj.bjc.6605569] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2009] [Revised: 01/07/2010] [Accepted: 01/12/2010] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND Extracellular matrix metalloproteases (MMPs) have raised an extraordinary interest in cancer research because of their potential role in basal membrane and extracellular matrix degradation, consequently facilitating tumour invasion and metastases development. METHODS An immunohistochemical study was performed using tissue arrays and specific antibodies against MMPs 1, 2, 7, 9, 11, 13, 14, and their tissue inhibitors, TIMPs 1, 2 and 3. More than 2600 determinations on cancer specimens from 133 patients with clinically localised prostate carcinoma, 20 patients with prostatic intraepithelial neoplasia and 50 patients with benign prostate hyperplasia and controls, were performed. RESULTS When compared with benign pathologies, prostate carcinomas had higher expression of all MMPs and TIMPs. Dendogram shows a first-order division of tumours into two distinct MMPs/TIMPs molecular profiles, one of them with high MMPs/TIMs expression profile (n=70; 52.6%). Tumours with high expression of MMP-11 or -13, or cluster thereof, were significantly associated with higher probability of biochemical recurrence. CONCLUSION The expression of MMPs and TIMPs seems to have an important role in the molecular biology of prostate carcinomas, and their expression by tumours may be of clinical interest to used as indicators of tumour aggressiveness.
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Guisasola MC, Calvo F, Marcos P, Simón I, Villanueva FJ, Andrés E, Suárez A, García-Barreno P. Peripheral leukocyte response to oncological radiotherapy: Expression of heat shock proteins. Int J Radiat Biol 2009; 82:171-9. [PMID: 16638714 DOI: 10.1080/09553000600643516] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
PURPOSE To study Heat Shock Proteins (HSP) expression in patients subjected to radiotherapy and their potential use as biomarkers for radiation tolerance. An evaluation is also made of whether irradiated volume is critical to the outcome of normal tissue injury using polymorphonuclear neutrophils as biosensors, and whether HSP antibodies (Ab) may be involved in post-radiotherapy disease. MATERIAL AND METHODS Twelve patients receiving the same total dose of radiotherapy, but in three different volumes, and four healthy volunteers used as controls were analysed. hsp27 and 70i mRNA were determined by Reverse Transcription-Polymerase Chain Reaction (RT-PCR) and Southern-blot, HSP by flow cytometry, and HSP-Ab by Enzyme-linked Immnoadsorbent Assay (ELISA). The clinical protocol included radiation related toxicity based on clinical and analytical scales. RESULTS Radiotherapy caused hsp downregulation, maximum in patients with the largest irradiated volumes, and a decrease in intracellular HSP content. Patients with greatest intraleukocyte HSP levels before treatment suffered more severe radiation morbidity. Patients with endocrine neoplasms presented the highest HSP-Ab titers. CONCLUSIONS Radiotherapy downregulates hsp27 and 70i, which would enhance radiosensitivity. HSP content prior to treatment is suggested as a prognostic biomarker for radiation tolerance, with circulating leukocytes as biosensors. HSP-Ab may be biomarkers of tumor disease, but do not seem to be involved in the morbidity of acute post-radiotherapy disease, which is closely related to the volumes irradiated.
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Ladero JM, López-Alonso G, Devesa MJ, Cuenca F, Ortega L, Agreda M, Suárez A, Ropero P, Díaz-Rubio M. Oscillations in serum ferritin associated with antiviral therapy in chronic hepatitis C. REVISTA ESPANOLA DE ENFERMEDADES DIGESTIVAS 2009; 101:31-40. [PMID: 19335031 DOI: 10.4321/s1130-01082009000100004] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
BACKGROUND Hyperferritinemia is often found in patients with chronic hepatitis C (CHC) and is predictive of poorer response to antiviral therapy. OBJECTIVE To investigate changes in ferritinemia during and after antiviral therapy. PATIENTS AND METHODS serum ferritin levels were measured in 262 CHC patients (163 males, mean age 48.5 years +/- 10.1) before and during antiviral therapy, and six months post-treatment in all 154 patients with undetectable serum HCV-RNA after therapy completion. RESULTS Baseline serum ferritin was higher in patients with primary therapeutic failure than in those reaching sustained viral response (330 +/- 291 ng/mL vs. 211 +/- 192 ng/mL, p = 0.002). Serum ferritin transiently increased during therapy from baseline (257 +/- 242 ng/mL vs. 875 +/- 630 ng/mL, p < 0.001). Six months after finishing therapy, serum ferritin decreased under baseline values both in sustained responders (117 +/- 102 ng/mL vs. 211+/- 192 ng/mL, p < 0.001) and, to a lesser extent, in relapsers (217 +/- 174 ng/mL vs. 257 +/- 221 ng/mL, p = 0.047). CONCLUSIONS Baseline serum ferritin may predict response to antiviral treatment in chronic hepatitis C. Combined antiviral therapy induces a marked increase in serum ferritin that falls below baseline values after sustained viral response, suggesting that the cause of hyperferritinemia in many patients is HCV infection itself rather than iron overload.
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Moral M, Fdez-Aceñero M, Cuberes R, Suárez A. Factors influencing prognosis after neo-adjuvant chemoradiation therapy for rectal carcinoma. Acta Chir Belg 2009; 109:345-51. [PMID: 19943591 DOI: 10.1080/00015458.2009.11680437] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
BACKGROUND Neo-adjuvant chemoradiation therapy (CRTx) has become a standard therapeutic regimen for rectal carcinoma. This therapeutic option allows more sphincter preserving surgical procedures and seems to improve prognosis in patients with rectal carcinoma. The aim of this study is to analyse factors influencing prognosis in terms of disease free survival (DFS) and overall survival (OS) after CRTx. MATERIAL AND METHODS We have reviewed the clinical and morphological data of 39 patients after neo-adjuvant chemoradiation therapy, including immunohistochemistry for p53, cyclin D1, MIB-1 (Ki67) and bcl-2 protein in paraffin-embedded tissue. RESULTS In our series, 12 patients did not respond to neo-adjuvant therapy, 12 showed a complete response and 15 a partial response. When we analysed the factors influencing DFS we found a significant influence of neural, vascular and lymphatic invasion, pre-operative and postoperative CEA, TNM staging, smoking and histological response to CRXT in the univariate analysis. As for OS, we found a significant influence of TNM staging, histological grade, peritumoral inflammatory reaction and vascular and neural invasion. No multivariate analysis was performed due to the small sample size. CONCLUSION In our series of patients with rectal carcinoma receiving pre-operative chemoradiation therapy, histopathological response has influenced prognosis.
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Gómez-Ariza CJ, Pelegrina S, Lechuga MT, Suárez A, Bajo MT. Inhibition and Retrieval of Facts in Young and Older Adults. Exp Aging Res 2009; 35:83-97. [DOI: 10.1080/03610730802545234] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Abelson AK, Delgado-Vega AM, Kozyrev SV, Sánchez E, Velázquez-Cruz R, Eriksson N, Wojcik J, Linga Reddy MVP, Lima G, D'Alfonso S, Migliaresi S, Baca V, Orozco L, Witte T, Ortego-Centeno N, Abderrahim H, Pons-Estel BA, Gutiérrez C, Suárez A, González-Escribano MF, Martin J, Alarcón-Riquelme ME. STAT4 associates with systemic lupus erythematosus through two independent effects that correlate with gene expression and act additively with IRF5 to increase risk. Ann Rheum Dis 2008; 68:1746-53. [PMID: 19019891 DOI: 10.1136/ard.2008.097642] [Citation(s) in RCA: 118] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
OBJECTIVES To confirm and define the genetic association of STAT4 and systemic lupus erythematosus (SLE), investigate the possibility of correlations with differential splicing and/or expression levels, and genetic interaction with IRF5. METHODS 30 tag SNPs were genotyped in an independent set of Spanish cases and controls. SNPs surviving correction for multiple tests were genotyped in five new sets of cases and controls for replication. STAT4 cDNA was analysed by 5'-RACE PCR and sequencing. Expression levels were measured by quantitative PCR. RESULTS In the fine mapping, four SNPs were significant after correction for multiple testing, with rs3821236 and rs3024866 as the strongest signals, followed by the previously associated rs7574865, and by rs1467199. Association was replicated in all cohorts. After conditional regression analyses, two major independent signals, represented by SNPs rs3821236 and rs7574865, remained significant across the sets. These SNPs belong to separate haplotype blocks. High levels of STAT4 expression correlated with SNPs rs3821236, rs3024866 (both in the same haplotype block) and rs7574865 but not with other SNPs. Transcription of alternative tissue-specific exons 1, indicating the presence of tissue-specific promoters of potential importance in the expression of STAT4, was also detected. No interaction with associated SNPs of IRF5 was observed using regression analysis. CONCLUSIONS These data confirm STAT4 as a susceptibility gene for SLE and suggest the presence of at least two functional variants affecting levels of STAT4. The results also indicate that the genes STAT4 and IRF5 act additively to increase the risk for SLE.
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Carrillo García F, Gil Néciga E, Alberca R, García-Solís D, Millán J, Rodríguez Uranga JJ, Franco E, Mir P, Suárez A, García R, Serrano-Pozo A, Pérez-Díaz H, Polo J. [Apolipoprotein E4 in dementia with Lewy bodies]. Neurologia 2008; 23:152-156. [PMID: 18370334] [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] Open
Abstract
INTRODUCTION There is a strong association between the e4 allele of apolipoprotein E (APOE) and Alzheimer's disease (AD). This converts this allele into a risk factor for the development of AD. The association between APOE4 and dementia with Lewy bodies (DLB) is under discussion. In DLB, the presence of APOE4 has been related with a greater amount of senile plaques and neurofibrillary tangles. METHOD This is a case-control study in which the APOE genotype was determined using the modified PCR technique of Wenham in 306 patients with diagnosis of probably AD, NINCDS-ADRDA criteria, 58 cases of probably DLB, McKeith et al. consensus criteria (1996), all of them with SPECT with pathological 123I-FP-CIT and 80 normal controls (NC) having similar age and gender distribution. RESULTS The frequency of alleles was: DLB group epsilon4: 16%; epsilon3: 75%; epsilon2: 9%; AD: epsilon4: 32%; epsilon3: 67%; epsilon2: 1%; and in the normal control group: epsilon4: 12%; epsilon3: 83%; epsilon2: 5%. The percentage of alleles in both genders was similar in the three groups. CONCLUSIONS APOE4 percentage in DLB group (16%) was lower than in AD group (32%), and similar to the control group (12%). Considering that the presence of morphopathological Alzheimer type alterations in DBL, essentially neurofibrillary tangles, is inversely correlated with the presence of Parkinsonian signs, this group may represent pure forms of the disease, although the lack of neuropathological demonstration does not make it possible to confirm this hypothesis.
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López-Alonso G, Ágreda M, Devesa MJ, Cuenca F, Suárez A, Ortega L, Díaz-Rubio M, Ladero JM. Resultados del tratamiento de la hepatitis crónica por VHC genotipo 4: Un análisis comparativo con el genotipo 1. REVISTA ESPANOLA DE ENFERMEDADES DIGESTIVAS 2008; 100:208-11. [DOI: 10.4321/s1130-01082008000400003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Fernández V, Alonso JL, Munuera L, Moya JL, Lasa B, Suárez A, Gutiérrez J. [Analysis of lung cancer cases diagnosed in an internal medicine department: from January 2001 to September 2006]. An Sist Sanit Navar 2008; 30:353-62. [PMID: 18227892 DOI: 10.4321/s1137-66272007000500004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
BACKGROUND Lung cancer is one of the main health problems in the developed world. Our aims were to determine the symptomatic time prior to a specific diagnosis, the clinical and histological characteristics of the cases of lung cancer diagnosed in a department of internal medicine, and to analyze the survival factors. MATERIAL AND METHODS We studied retrospectively all patients diagnosed with lung cancer in the internal medicine department in the period between January 2001 and September 2006 reviewing clinical records. We specifically recorded age, gender, smoking habit, time and type of symptomatic presentation, radiological manifestations, methods of histological diagnosis, tumour staging, and performance status measured by ECOG classification. We also evaluated the factors associated with the survival time. RESULTS In this period 124 patients were diagnosed with lung cancer [mean age 68 +/-12 years, male 105 (85%), female 18 (15%), smokers 85%]. The mean symptomatic time before hospitalization was 74.5 +/-7 days. On hospitalization, respiratory symptoms were present in 40 (32%) patients. Tumour staging was carried out in 120 (97%) patients. In 96 (77%) patients non-small lung cancer was diagnosed, 62 (64%) in stage IV. In 28 (23%) patients small lung cancer was diagnosed, 22 (79%) in extended stage. Median time to diagnosis as an in-patient was 7 days. One hundred and thirteen (91%) patients died with a median survival time of 3 months. Factors associated with longer survival were the performance status and tumour stage. CONCLUSIONS In this community, lung cancer is diagnosed late and in advanced stages, with a high mortality rate. A better performance status and lower tumour stages appear to be associated with longer survival.
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Fernández JJ, Fernández A, Vázquez-García D, López-Torres M, Suárez A, Gómez-Blanco N, Vila JM. Tetranuclear Complexes of PdII with Tridentate [C,N,O] and [O,N,O] Ligands: Synthesis, Reactivity and Structural Isomerism. Eur J Inorg Chem 2007. [DOI: 10.1002/ejic.200700478] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Fernández JJ, Fernández A, Vázquez-Garcı´a D, López-Torres M, Suárez A, Vila JM. Reactivity of tetranuclear complexes of Pd(II) with potentially homo- and heterobidentate ligands. Polyhedron 2007. [DOI: 10.1016/j.poly.2007.06.012] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Fontcuberta M, Arqués JF, Martínez M, Suárez A, Villalbí JR, Centrich F, Serrahima E, Duran J, Casas C. Polycyclic aromatic hydrocarbons in food samples collected in Barcelona, Spain. J Food Prot 2006; 69:2024-8. [PMID: 16924937 DOI: 10.4315/0362-028x-69.8.2024] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
This study reports on the concentrations of eight polycyclic aromatic hydrocarbons (PAHs) in food samples collected in the city of Barcelona (Catalonia, Spain) from 2003 to 2004. Food samples included meat products, fish (fresh and smoked), other seafood (cephalopods, crustaceans, and bivalves), vegetable oil, and tea. Concentrations of benz[a]anthracene, benzo[b]fluoranthene, benzo[k]fluoranthene, benzo[g,h,i]perylene, benzo[alpha]pyrene, benzo[e]pyrene, dibenz[a,h]anthracene, and indeno[1,2,3-c,d]pyrene were determined by reversed-phase high-performance liquid chromatography with fluorescence detection. PAHs were detected in most tea samples (94%), which had the highest concentration of total PAHs (mean concentration of 59 microg/kg). Other food groups with a high presence of PAHs were bivalves (present in 34% of the samples; mean value of 2.7 microg/kg) and meat products (present in 13% of the samples; mean value of 1.7 microg/kg). The PAHs detected most frequently were benzo[e]pyrene and benzo[b]fluoranthene. No sample had levels above current regulation standards. Nevertheless, the frequent presence of PAHs in bivalves, tea samples, and meat products, together with the fact that dietary sources are the main exposure to these carcinogenic compounds, suggests the need for some monitoring scheme to follow up on these trends.
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Suárez A, López P, Gómez J, Gutiérrez C. Enrichment of CD4+ CD25high T cell population in patients with systemic lupus erythematosus treated with glucocorticoids. Ann Rheum Dis 2006; 65:1512-7. [PMID: 16606650 PMCID: PMC1798359 DOI: 10.1136/ard.2005.049924] [Citation(s) in RCA: 118] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
OBJECTIVES To characterise and quantify the CD4+ CD25+ T cell population in patients with systemic lupus erythematosus (SLE) and to detect the possible influence of treatments and clinical manifestations. METHODS Characterisation of CD25(low) and CD25(high) CD4+ T cells from healthy controls and from patients with SLE was carried out using flow cytometry, analysing the expression of activation and differentiation markers. The percentage of both circulating cell subsets was determined in 56 controls and 110 unselected patients with SLE. Data were related to treatment during the past 3 months and to various clinical manifestations. RESULTS CD4+ CD25(high) lymphocytes from controls expressed low levels of CD69, CD154 or CD30, but also expressed glucocorticoid-induced tumour necrosis factor receptor, high levels of intracellular cytotoxin T lymphocyte-associated antigen 4, CD45RO and diminished amounts of CD4, all of which are phenotypic characteristics of natural regulatory T cells. CD4+ CD25(low) cells, on the other hand, expressed the highest levels of activation markers, indicating that they represent recently activated effector cells. Similarly, analysis of cells from patients with SLE showed the same two phenotypically distinguishable CD4+ CD25(low) and CD4+ CD25(high) populations, although both expressed slightly increased levels of activation markers. Quantitative analysis showed a considerably raised percentage of CD25(low) and, especially, CD25(high) cells in patients with SLE compared with controls. This increment was unrelated to clinical manifestations, but correlated with glucocorticoid treatment. Patients treated with glucocorticoids presented raised levels of CD25(high) cells, whereas untreated patients and those with anti-malarial or immunosuppressive drugs had levels similar to those in controls. CONCLUSIONS The percentage of CD4+ CD25(high) cells was not altered in non-steroid-treated patients, whereas glucocorticoid treatment increased their frequency in patients with SLE.
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Galisteo M, Suárez A, Montilla MP, Torres MI, Fernandez MI, Gil A, Navarro MC. Protective effects of Rosmarinus tomentosus ethanol extract on thioacetamide-induced liver cirrhosis in rats. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2006; 13:101-8. [PMID: 16360939 DOI: 10.1016/j.phymed.2004.06.024] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2004] [Accepted: 06/02/2004] [Indexed: 05/05/2023]
Abstract
The capability of an ethanol extract of Rosmarinus tomentosus to protect rat liver in an experimental model of cirrhosis induced by thioacetamide (TAA) has been evaluated. Four groups of rats were used: Two of them received 300 mg TAA/l in the drinking water for 3 months while the other two, which served as controls, were given water ad libitum. During the same period and for each one of the treatments, one group received a semi-purified (SP) diet and the other one was fed the same diet supplemented with 1% of the dry residue obtained from R. tomentosus ethanol extract (SP+E). There was a significant reduction of TAA toxicity in rats fed the SP+E diet, as assessed by plasma and liver biochemical markers, and by liver histopathology. Plasma total protein concentration was restored, urea concentration and plasma alkaline phosphatase and gamma-glutamyl-transferase activities were reduced. A significant correction of plasma fatty acids concentrations was also evident. Hepatic alkaline phosphatase and gamma-glutamyl-transferase activities were significantly reduced in animals fed SP+E diet and glucose-6-phosphatase activity was significantly enhanced. The results suggest that R. tomentosus ethanol extract administered in the diet affords protection against TAA-induced cirrhosis, preventing most of the histological changes and functionality alterations own to this experimental pathology.
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Espinosa E, Vara JAF, Redondo A, Sánchez JJ, Hardisson D, Zamora P, Pastrana FG, Cejas P, Martínez B, Suárez A, Calero F, Barón MG. Breast Cancer Prognosis Determined by Gene Expression Profiling: A Quantitative Reverse Transcriptase Polymerase Chain Reaction Study. J Clin Oncol 2005; 23:7278-85. [PMID: 16129846 DOI: 10.1200/jco.2005.01.4746] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Purpose We sought to reproduce with quantitative reverse-transcriptase polymerase chain reaction (qRT-PCR) the results obtained with a 70-gene expression profile that has been described previously in breast cancer. Patients and Methods Frozen breast cancer samples from patients who were operated on were used to isolate tumor RNA. Ninety-six patients with stage I to II disease were included. Median age was 57 years (range, 27 to 80 years). Forty-eight patients had lymph node–negative and 48 lymph node–positive disease. qRT-PCR amplifications were performed and the results were correlated with clinical data. Results After a minimum follow-up of 5 years, 25 patients had a relapse. The gene profile divided patients into two groups with poor and good prognosis. Significant differences with regard to grade of differentiation, size and hormone receptors were seen between the two groups. The gene profile was significantly associated with relapse-free survival and overall survival in the whole group of 96 patients. Multivariate analysis showed that only lymph node status and gene profile were significantly correlated to overall survival. Conclusion qRT-PCR reproduced the results obtained with microarrays for a prognostic gene profile in women with early-stage breast cancer.
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Sicras A, Rejas J, Arco S, Flores E, Ortega G, Esparcia A, Suárez A, Gordillo MJ. Prevalence, resource utilization and costs of vascular dementia compared to Alzheimer's dementia in a population setting. Dement Geriatr Cogn Disord 2005; 19:305-15. [PMID: 15785031 DOI: 10.1159/000084556] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/01/2004] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVES To determine the prevalence of dementia and to measure the monetary impact and health resources utilization of vascular dementia (VD) compared to Alzheimer's dementia (AD) in persons aged over 64 years in a population setting. METHODS Retrospective, cross-sectional study. In the initial phase, information was obtained on specific clinical characteristics from the subjects with an active diagnosis of dementia. The second phase consisted of a clinical evaluation and validation of the cases. Mini-Mental State Examination was used to assess cognitive impairment. Dementia and its subtypes were determined using established diagnostic criteria. Information was obtained on the use of health care resources (direct costs) and the number of hours devoted by the primary caregiver (indirect costs) for patients with a documented diagnosis of AD or VD within the last 6 months prior to the interview. A multiple logistic regression analysis was performed to correct the model. RESULTS A total of 6,004 subjects were analyzed, 258 with diagnosis of dementia (overall prevalence: 4.3%). An evaluation was made of 224 patients, and gross prevalence of AD and VD was 2.4 and 1.0%, respectively. Cost per patient per semester was EUR 8,086 for AD and EUR 11,039 for VD (p = 0.016). 85.5% of the cost was attributable to primary caregiver time in AD and 84.4% in VD. CONCLUSIONS The prevalence of AD and VD increases with age. No sociodemographic differences were seen between AD and VD. Costs associated with health care resource and primary caregiver utilization were high, being higher in VD than in AD.
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Yébenes L, Ignacio Sánchez J, de Santiago J, Santiago M, Gilsanz F, Suárez A, Hardisson D. Tumor de células de Leydig de ovario: una causa infrecuente de virilización en la mujer posmenopáusica. ACTA ACUST UNITED AC 2005. [DOI: 10.1016/s0304-5013(05)72430-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Fernández A, Vázquez-García D, Fernández JJ, López-Torres M, Suárez A, Vila JM. Cyclometallation of phenylhydrazones: Synthesis, reactivity, crystal structure analysis and novel trinuclear palladium(II) cyclometallated compounds with [C,N,N′] terdentate ligands. J Organomet Chem 2005. [DOI: 10.1016/j.jorganchem.2005.04.039] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Suárez A, López P, Mozo L, Gutiérrez C. Differential effect of IL10 and TNF{alpha} genotypes on determining susceptibility to discoid and systemic lupus erythematosus. Ann Rheum Dis 2005; 64:1605-10. [PMID: 15800006 PMCID: PMC1755257 DOI: 10.1136/ard.2004.035048] [Citation(s) in RCA: 63] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
OBJECTIVE To ascertain the possible involvement of functional interleukin 10 (IL10) and tumour necrosis alpha (TNFalpha) cytokine promoter polymorphisms on the susceptibility to discoid and systemic lupus erythematosus (DLE, SLE), and their associations with immunological features. METHODS Single nucleotide polymorphisms of the IL10 (-1082, -819, and -592) and TNFalpha (-308) genes were determined using allele specific probes in 248 lupus patients and 343 matched controls. To assess functional significance of genotypes, basal mRNA cytokine levels were quantified in 106 genotyped healthy controls by real time RT-PCR. Specific autoantibodies and cutaneous manifestations were analysed in SLE patients and associated with functional genotypes. RESULTS After analysing the distribution of IL10 and TNFalpha transcript levels according to promoter genotypes in healthy individuals, patients and controls were classified into functional single and combined genotypes according to the expected high or low constitutive cytokine production. High TNFalpha genotypes (-308AA or AG) were associated with SLE independently of IL10 alleles, whereas the risk of developing DLE and the prevalence of discoid lesion in SLE were higher in the high IL10/low TNFalpha producer group (-1082GG/-308GG). Cytokine interaction also influences the appearance of autoantibodies. Antibodies against Sm are prevalent among low producer patients for both cytokines, a genotype not associated with lupus incidence, whereas low IL10/high TNFalpha patients have the highest frequency of antibodies to SSa and SSb. CONCLUSIONS IL10/TNFalpha interaction influences susceptibility to DLE and the appearance of specific autoantibodies in SLE patients, whereas high TNFalpha producer genotypes represent a significant risk factor for SLE.
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Guasch E, Suárez A, Bermejo JM, Gilsanz F. [Randomized controlled trial comparing a low dose to a conventional dose of hyperbaric bupivacaine for scheduled cesarean section]. REVISTA ESPANOLA DE ANESTESIOLOGIA Y REANIMACION 2005; 52:75-80. [PMID: 15765988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
INTRODUCTION Spinal anesthesia is the technique most often applied in cases of scheduled cesarean section. Many authors have tried decreasing the local anesthetic dose by adding opioids to achieve adequate analgesia with greater hemodynamic stability, although the ideal dose remains to be established. Our aim was to analyze hemodynamic stability and quality of analgesia with 2 different regimens for administering spinal hyperbaric bupivacaine. METHODS We designed a controlled, double-blind trial comparing 2 doses of spinal hyperbaric bupivacaine with fentanyl in 42 patients undergoing elective cesarean section randomized to 2 groups to receive either the low dose or the conventional one. One group received an 11 mg dose of bupivacaine and the other group received a 6.5 mg dose, combined with 20 microg of fentanyl in both cases. RESULTS The hemodynamic profile and the level of maximum sensory block obtained were similar in the two groups. The motor block was less intense in patients receiving the lower dose and it was necessary to convert 2 patients (10%) to general anesthesia in that group. CONCLUSIONS Spinal anesthesia with low doses of bupivacaine and fentanyl provides acceptable intraoperative conditions for a high percentage of patients undergoing cesarean section, with a similar incidence of hypotension. The low dose generates a less intense intraoperative motor blockade with similar spread of the sensory block. The low dose was not efficacious for 10% of the patients who received it.
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