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Piñero P, González A, Martínez E, Mayol A, Rafel E, González-Marcos JR, Moniche F, Cayuela A, Gil-Peralta A. Volume and composition of emboli in neuroprotected stenting of the carotid artery. AJNR Am J Neuroradiol 2008; 30:473-8. [PMID: 19039048 DOI: 10.3174/ajnr.a1407] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Periprocedural microembolization is a major and permanent risk for patients treated by angioplasty and stent placement of high-grade carotid stenoses. Little is known however about the characteristics and significance of these embolized particles. Our aim was to assess the volume and composition of debris captured by filters during carotid angioplasty and stent placement (CAS) of severe internal carotid artery (ICA) stenoses. MATERIALS AND METHODS Institutional review board approval and informed consent from all subjects were obtained. Two hundred one patients (mean age, 66.2 years; range, 35-82 years) with > or = 70% stenosis of the ICA underwent filter-protected CAS. Ultrastructural and semiquantitative analysis of the volume of filters was obtained. Multifactorial statistical analysis was performed to determine factors related to debris volume and composition. RESULTS Transient ischemic attack occurred in 6 patients (3%), and a major stroke, in 1 (0.5%). Debris was found in 117 filters (58.2%), with volume <1 lambda (0.001 mL) in 71%. The number of balloon dilations, age older than 65 years, and calcified plaques in pre-CAS angiography were significantly associated with the presence of particulates inside the filters (P < .03, P < .004, and P < .05, respectively). CONCLUSIONS Vessel wall and atheromatous plaques are the main source of microemboli during CAS. Embolization is mainly related to the number of balloon dilations during CAS. Planning a proper and individualized strategy for the procedure in each patient is essential to minimize the potential effects of manipulation during CAS.
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Gacto P, Miralles F, Pereyra JJ, Perez A, Martínez E. Haemostatic effects of adrenaline-lidocaine subcutaneous infiltration at donor sites. Burns 2008; 35:343-7. [PMID: 18950945 DOI: 10.1016/j.burns.2008.06.019] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2007] [Accepted: 06/30/2008] [Indexed: 11/17/2022]
Abstract
This study sought methods in burn surgery to reduce postoperative pain and blood loss at donor sites. A prospective, randomised, controlled, blinded trial included 56 people undergoing burn surgery, divided into two groups. Both groups received subcutaneous infiltration at donor sites, with either 1:500,000 adrenaline solution containing added lidocaine or with 0.45% normal saline (controls). Outcome measurements included amount of intraoperative bleeding, need for electrocautery, days the hydrocolloid dressing remained on donor sites, percentage of re-epithelialised skin at donor sites 1 week after surgery and viability of skin grafts. Results indicated that subcutaneous adrenaline-lidocaine infiltration at donor sites reduced intraoperative bleeding, decreased postoperative pain, shortened the duration of surgery and general anaesthesia and accelerated re-epithelialisation at the donor site. The overall graft take in both groups was similar.
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Cuspineda E, Virués T, Martínez E, Ojeda A, Bosch J, Valdés P. 204. Source analysis of alpha rhythm reactivity using individual MRI. Clin Neurophysiol 2008. [DOI: 10.1016/j.clinph.2008.04.220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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154
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Tomicic V, Montalván C, Espinoza M, Graf J, Martínez E, Umaña A, Torres J. [Pumpless extracorporeal pulmonary care: an alternative in the treatment of persistent acute respiratory distress syndrome]. Med Intensiva 2008; 32:253-7. [PMID: 18570836 DOI: 10.1016/s0210-5691(08)70948-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
A 34-year old woman who developed persistent and severe acute respiratory distress syndrome with underlying myelomonocytic leukemia (M4FAB) is described. After ruling out the most common causes of pulmonary infiltration in this type of patient and one week of broad spectrum antibiotics and steroids therapy, we proposed leukemic pulmonary infiltration as etiological diagnosis. Despite using a protective ventilatory strategy, recruitment maneuvers, prone position and high frequency oscillatory ventilation, her gas exchange became worse. Under this condition we used a Pumpless-Extracorporeal life assist (PELA) and begun chemotherapy. The method, arterial blood gases, hemodynamic parameters and ventilatory mechanics before and after its use are described. The patient remained on P-ELA for nine days; one week later she was extubated and ten days after she was discharged from the Intensive Care Unit the patient left the hospital in good health condition.
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Martínez E, Geffner-Sclarsky D, Rodríguez D, Vilar C, Pérez T. [Paraparesis developed during treatment for tuberculous meningitis]. Rev Neurol 2008; 46:379-380. [PMID: 18368684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
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156
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Altshuler E, Toussaint R, Martínez E, Sotolongo-Costa O, Schmittbuhl J, Måløy KJ. Revolving rivers in sandpiles: from continuous to intermittent flows. PHYSICAL REVIEW. E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS 2008; 77:031305. [PMID: 18517368 DOI: 10.1103/physreve.77.031305] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2007] [Indexed: 05/26/2023]
Abstract
In a previous paper [E. Altshuler, Phys. Rev. Lett. 91, 014501 (2003)], the mechanism of "revolving rivers" for sandpile formation is reported: As a steady stream of dry sand is poured onto a horizontal surface, a pile forms which has a river of sand on one side flowing from the apex of the pile to the edge of the base. For small piles the river is steady, or continuous. For larger piles, it becomes intermittent. In this paper we establish experimentally the "dynamical phase diagram" of the continuous and intermittent regimes, and give further details of the piles' "topography," improving the previous kinematic model to describe it and shedding further light on the mechanisms of river formation. Based on experiments in Hele-Shaw cells, we also propose that a simple dimensionality reduction argument can explain the transition between the continuous and intermittent dynamics.
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Martínez E, Engel E, López-Iglesias C, Mills CA, Planell JA, Samitier J. Focused ion beam/scanning electron microscopy characterization of cell behavior on polymer micro-/nanopatterned substrates: A study of cell–substrate interactions. Micron 2008; 39:111-6. [PMID: 17291772 DOI: 10.1016/j.micron.2006.12.003] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2006] [Revised: 12/20/2006] [Accepted: 12/21/2006] [Indexed: 11/24/2022]
Abstract
Topographic micro and nanostructures can play an interesting role in cell behaviour when cells are cultured on these kinds of patterned substrates. It is especially relevant to investigate the influence of the nanometric dimensions topographic features on cell morphology, proliferation, migration and differentiation. To this end, some of the most recent fabrication technologies, developed for the microelectronics industry, can be used to produce well-defined micro and nanopatterns on biocompatible polymer substrates. In this work, osteoblast-like cells are grown on poly(methyl methacrylate) substrates patterned by nanoimprint lithography techniques. Examination of the cell-substrate interface can reveal important details about the cell morphology and the distribution of the focal contacts on the substrate surface. For this purpose, a combination of focused ion beam milling and scanning electron microscopy techniques has been used to image the cell-substrate interface. This technique, if applied to samples prepared by freeze-drying methods, allows high-resolution imaging of cross-sections through the cell and the substrate, where the interactions between the nanopatterned substrate, the cell and the extracellular matrix, which are normally hidden by the bulk of the cell, can be studied.
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Peiró AM, Martínez J, Martínez E, de Madaria E, Llorens P, Horga JF, Pérez-Mateo M. Efficacy and tolerance of metamizole versus morphine for acute pancreatitis pain. Pancreatology 2008; 8:25-9. [PMID: 18235213 DOI: 10.1159/000114852] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/07/2006] [Accepted: 08/10/2007] [Indexed: 12/11/2022]
Abstract
BACKGROUND/AIMS Morphine has been contraindicated for pain treatment in acute pancreatitis because of its presumed opioid-induced sphincter of Oddi dysfunction. However, scientific evidence supporting a deleterious influence on the clinical course is absent. This pilot study was undertaken to evaluate the efficacy and adverse events of metamizole versus morphine in acute pancreatitis. METHODS 16 patients with acute pancreatitis were randomized to receive 10 mg/4 h s.c. (n = 8) morphine or 2 g/8 h i.v. (n = 8) metamizole. Pain scores were recorded every 4 h during 48 h after admission by a Visual Analogue Scale. Pethidine was additionally administered as a rescue therapy. RESULTS 75% of patients achieved pain relief in the metamizole group versus 37.5% in the morphine group within 24 h of hospitalization (6/8 vs. 3/8; p: n.s.). The mean time to achieve pain relief was shorter in the metamizole group (10 +/- 6.6 vs. 17 +/- 18.3 h; p: n.s.). At the end of the study, 75% of patients achieved pain relief in the metamizole group versus 50% in the morphine group. Three patients in each group needed pethidine: 2 out of 3 achieved pain control in the metamizole group vs. 0 out of 3 in the morphine group. CONCLUSIONS Intravenous metamizole shows a non-significant association with a quicker pain relief than morphine s.c. in acute pancreatitis. A larger randomized controlled trial should be desirable to confirm this result. and IAP.
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Delgado Martín J, Blázquez Izquierdo J, Silmi Moyano A, Martínez E. Factores determinantes de la satisfacción del paciente con el tratamiento para la disfunción eréctil. Actas Urol Esp 2008; 32:995-1003. [DOI: 10.1016/s0210-4806(08)73978-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Ribera E, Clotet B, Martínez E, Estrada V, Sanz J, Berenguer J, Rubio R, Pulido F, Larrouse M, Curran A, Negredo E, Ferrer P, Álvarez ML. 48-week outcomes following switch from AZT/3TC to FTC/TDF (TVD) vs. continuing on AZT/3TC: 48-week interim analysis of the RECOMB trial. J Int AIDS Soc 2008. [DOI: 10.1186/1758-2652-11-s1-p54] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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161
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Martínez E, Milinkovic A, Buira E, de Lazzari E, León A, Larrousse M, Loncá M, Laguno M, Blanco JL, Mallolas J, García F, Miró JM, Gatell JM. Incidence and causes of death in HIV-infected persons receiving highly active antiretroviral therapy compared with estimates for the general population of similar age and from the same geographical area. HIV Med 2007; 8:251-8. [PMID: 17461853 DOI: 10.1111/j.1468-1293.2007.00468.x] [Citation(s) in RCA: 89] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Since the introduction of highly active antiretroviral therapy (HAART), the incidence of death in HIV-infected patients has dramatically decreased, and causes of death other than those related to HIV infection have increased, although it is unclear how these parameters compare with those in the age-matched general population living in the same geographical region. METHODS Consecutive HIV-infected adults who were prescribed HAART in our hospital were prospectively followed from January 1997 to December 2004 or until death, loss to follow-up or discontinuation of HAART. Estimations of the annual incidence and causes of death in the general population of similar age in Catalonia per calendar year in the study period were obtained and compared with those in the HIV-infected cohort. RESULTS There were 235 deaths among the 4471 patients on HAART (5%). The incidence of mortality decreased over time in HIV-infected patients (P<0.001; chi(2) test for trend), although it has remained approximately five times higher than that for the age-matched general population. AIDS-related events were the most common cause of death (n=95; 40%), although they significantly decreased over time (P<0.001; chi(2) test for trend), whereas liver diseases (P<0.001; chi(2) test for trend) and non-AIDS-defining infections (P=0.008; chi(2) test for trend) significantly increased over time. Infections in general (33 times higher), liver diseases (11 times higher) and non-Hodgkin lymphoma (5 times higher) were overrepresented as causes of death in the HIV-infected cohort compared with the age-matched general population. CONCLUSIONS Non-AIDS-defining infectious diseases, liver diseases, and non-Hodgkin lymphoma represent specific targets for efforts to further decrease mortality in HIV-infected patients receiving HAART.
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Martínez E, Ríos-Mondragón I, Pla-Roca M, Rodríguez-Segui S, Engel E, Mills C, Sisquella X, Planell J, Samitier J. Cell-surface interactions studies to trigger stem cell differentiation. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2007. [DOI: 10.1016/j.nano.2007.10.051] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Mallolas J, Sarasa M, Nomdedeu M, Soriano A, López-Púa Y, Blanco JL, Martínez E, Gatell JM. Pharmacokinetic interaction between rifampicin and ritonavir-boosted atazanavir in HIV-infected patients. HIV Med 2007; 8:131-4. [PMID: 17352770 DOI: 10.1111/j.1468-1293.2007.00442.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND Tuberculosis (TB) is a common opportunistic infection among HIV-infected people, and rifampicin is an important drug for the treatment of TB. However, administration of rifampicin in combination with antiretroviral therapy, particularly protease inhibitors, is difficult because of drug-drug interactions. METHODS We have performed a prospective study in three HIV-infected patients with TB treated with a rifampicin-containing regimen (rifampicin 600 mg per day) and antiretroviral therapy including only nucleoside reverse transcriptase inhibitors (NRTIs) plus atazanavir 300 mg once a day (qd) and ritonavir 100 mg qd, to evaluate whether the inducing effect of rifampicin on the drug-metabolizing enzyme cytochrome P450 (CYP) 3A4 could be overcome by the inhibitory effect of ritonavir. A complete pharmacokinetic evaluation of the steady-state concentrations of atazanavir and ritonavir was performed. RESULTS In all three cases, more than 50% of the time the atazanavir level was below the minimum recommended trough plasma level (150 ng/mL according to current pharmacokinetic guidelines) to inhibit HIV wild-type replication. CONCLUSION These results strongly indicate that the administration of rifampicin with a combination of atazanavir 300 mg qd plus ritonavir 100 mg qd must be avoided because subtherapeutic concentrations of atazanavir are produced.
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Avilés C, Cerrillo M, Martínez E, Pascual A, Losa E, González G. Mixoma de ovario. CLINICA E INVESTIGACION EN GINECOLOGIA Y OBSTETRICIA 2007. [DOI: 10.1016/s0210-573x(07)74507-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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165
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Mallolas J, Blanco JL, Pich J, Arnaiz JA, Peña JM, Dalmau D, de Lazzari E, Ochoa A, Vidal F, Ribas MA, Segura F, Pedrol E, Flores J, Cruceta A, Varea S, Miró JM, Martínez E, Gatell JM. A randomized trial comparing the efficacy and tolerability of two HAART strategies at two years in antiretroviral naive patients. Rev Clin Esp 2007; 207:427-32. [PMID: 17915162 DOI: 10.1157/13109831] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
BACKGROUND The use of HAART combining 2 nucleoside analogues reverse transcriptase inhibitors (NRTIs) plus one protease inhibitor (PI) or 2 NRTIs + 1 non-nucleoside reverse transcriptase inhibitor (NNRTI) has shown comparable efficacy. The study was designed to compare long term (2 years) effectiveness of two antiretroviral (ARV) treatment strategies in patients not previously treated: starting with a nelfinavir based HAART switching to nevirapine in case of failure or side effects or the reverse sequence. METHODS This multicenter, randomized, open label clinical trial enrolled ARV-naïve HIV patients with CD4 counts below 500 cells/mm3. They were randomly assigned to start ddI + d4T + nelfinavir (switching to ZDV + 3TC + NEV in case of failure or toxicity) (PI-NEV arm) or ddI + d4T + nevirapine, switching to ZDV + 3TC + NFV in case of failure or toxicity (NEV-PI arm). The primary study endpoint was the Kaplan-Meier estimates of the time to failure after switching to second regimen if necessary (considering failure as two consecutive plasma HIV-1 RNA determinations above 200 copies/mL, death, a new category C event or toxicity leading to treatment discontinuation of the second regimen) after a minimum follow-up of two years. RESULTS A total of 137 patients were evaluable (67 and 70 in the PI-NEV and NEV-PI arms respectively). Baseline characteristics did not differ among groups. Kaplan-Meier estimates of time to failure did not show differences between the two arms neither in the on-treatment (OT) analysis (log rank test, p = 0.81) nor in the intent-to-treat (ITT) analysis (p = 0.58). At 24 months, the estimated proportion of patients free of failure were 72% and 66% respectively in the PI-NEV and NEV-PI arms OT analysis (p = 0.54) and 73% and 64% in the PI-NEV and NEV-PI arms in the ITT analysis (p = 0.49). The difference in the median in CD4+ lymphocyte count at 24 months was not significantly different in the two groups: 393 and 307 CD4 cells/mm3 in the PI-NEV and NEV-PI arms respectively (p = 0.167). The incidence of adverse events (AEs) in the two arms was very similar: 50 (75%) in the PI-NEV and 54 (70%) in the NEV-PI group, as it was for grade 3-4 AEs leading to drug switching. CONCLUSION At two years both treatments strategies (PI-NEV vs NEV-PI) had a high and comparable efficacy and were generally well tolerated.
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Gámez L, Martínez E, Perlado J, Cepas P, Caturla M, Victoria M, Marian J, Arévalo C, Hernández M, Gómez D. Kinetic Monte Carlo modelling of neutron irradiation damage in iron. FUSION ENGINEERING AND DESIGN 2007. [DOI: 10.1016/j.fusengdes.2007.04.040] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Martínez MA, Gómez AF, Martínez E, Mora M. COLAB: A Collaborative platform for simulations in virtual laboratories. INTELIGENCIA ARTIFICIAL 2007. [DOI: 10.4114/ia.v8i24.779] [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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Segura S, Mora J, Parareda A, de Torres C, Laguna A, Callejo J, Martínez E, Cruz O. 1412 POSTER Ovarian tissue cryopreservation for girls and adolescents with childhood cancer. EJC Suppl 2007. [DOI: 10.1016/s1359-6349(07)70751-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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169
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Arias F, Dominguez M, Villafranca E, Romero P, Manterola A, Martínez E, Oria E, Asin G, Rico M, Arrarás J. 5529 POSTER Hyperfractionated radiation therapy and cisplatin for locally-advanced head and neck cancer (LAHNC). Experience of the Hospital de Navarra. EJC Suppl 2007. [DOI: 10.1016/s1359-6349(07)71246-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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170
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Mallolas J, Blanco J, Labarga P, Vergara A, Ocampo A, Sarasa M, Arnedo M, López-Púa Y, García J, Juega J, Guelar A, Terrón A, Dalmau D, García I, Zárraga M, Martínez E, Carné X, Pumarola T, Escayola R, Gatell J. Inhibitory quotient as a prognostic factor of response to a salvage antiretroviral therapy containing ritonavir-boosted saquinavir. The CIVSA Study. HIV Med 2007; 8:226-33. [PMID: 17461850 DOI: 10.1111/j.1468-1293.2007.00464.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND The addition of a low dose of ritonavir to protease inhibitors (PIs) has become a widespread strategy to improve PI pharmacokinetics. As resistance is a major barrier to long-term suppression, in salvage therapy genotype and/or phenotype scoring is currently used to predict the response. We evaluated the relationship between the saquinavir (SQV) inhibitory quotient (IQ) (virtual and genotypic) and virological response. METHODS Eligible patients were on a PI-containing highly active antiretroviral therapy (HAART) regimen excluding SQV and had a viral load >5000 HIV-1 RNA copies/mL. The PI was switched to SQV/ritonavir (RTV) 1000/100 mg twice a day (bid) and the same two backbone nucleoside reverse transcriptase inhibitors (NRTIs) were maintained at least until week 4, when the resistance test results became available. Genotype and virtual phenotype were determined at baseline, while the SQV trough plasma concentration was determined at week 4. RESULTS Fifty-three patients were included in the study. Mean baseline viral load and CD4 count were 137,693 copies/mL and 263 cells/microL, respectively, the mean number of previous PIs was 2.3 and the mean number of protease gene mutations (PGMs) was 4.1. Using an on-treatment analysis, at week 16 the mean increase in CD4 count was 70.9 cells/microL, viral load was <200 copies/mL in 17 out of 37 patients (45.9%), and 30 out of 45 patients (66.7%) were considered virological responders (VRs) (viral load <200 copies/mL or viral load declined > or =1 log(10) at week 16). Median virtual phenotype was 1.3 (0.6-6.9). Baseline differences were detected between VR and non-VR populations: the mean numbers of PGMs were 3.2 and 5.8 (P<0.05), the mean numbers of SQV-associated mutations were 2 and 3.8 (P<0.05), and the mean CD4 counts were 365.9 and 184.3 cells/microL (P<0.05), respectively. Mean SQV trough concentrations at week 4 were 1.1 and 1.0 microg/mL (not significant), and mean virtual IQs were 0.7 and 0.1 (P<0.01), respectively. Multivariate analysis showed that baseline PGMs >5 or SQV-associated mutations>5, virtual phenotype, baseline viral load >50,000 copies/mL, and virtual IQ <0.5, but not genotypic IQ, were the variables independently associated with non-VR. CONCLUSION In heavily pretreated patients, the use of SQV virtual IQ or alternatively virtual phenotype, as well as PGMs, is a useful tool for the prediction of virological response.
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Rodríguez R, Martínez E, Santana M, Rodríguez Huertas E. [Stress response under continuous infusion of remifentanil compared to bolus doses of fentanyl assessed by levels of cytokines, C-reactive protein, and cortisol during and after abdominal hysterectomy]. REVISTA ESPANOLA DE ANESTESIOLOGIA Y REANIMACION 2007; 54:221-6. [PMID: 17518172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
OBJECTIVES Surgery and anesthetic method have immunomodulating effects on hemodynamic response and stress. We compared the effects of 2 intraoperative analgesic regimens on patients undergoing abdominal hysterectomy. MATERIAL AND METHODS We conducted a randomized double-blind trial in ASA 1 and 2 patients undergoing abdominal hysterectomy under balanced anesthesia. Twenty-nine patients were randomized to 2 groups. One group received analgesia by infusion of remifentanil plus morphine and nonsteroidal anti-inflammatory drugs as rescue medications; the other received conventional analgesia with bolus doses of fentanyl according to changes in hemodynamic variables. We measured levels of proinflammatory (interleukin [IL]-6) and antiinflammatory (IL-10) cytokines, cortisol, and C-reactive protein preoperatively, at incision, and at 1, 4 and 24 hours after surgery. RESULTS There were no significant differences between the 2 groups in terms of the markers studied at baseline. In each group, however, there were significant changes from baseline at the various points in time. IL-6 and IL-10 levels were significantly elevated (P < .05) at 4 hours. The changes in cortisol levels were significantly different at 1 and 4 hours. Finally, there were significant increases in C-reactive protein at 24 hours. CONCLUSIONS Unlike other clinical trials, our study detected no differences between the 2 techniques in response to surgical stress evaluated by analyzing concentrations of pro- and anti-inflammatory cytokines, cortisol, and C-reactive protein.
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MESH Headings
- Aged
- Anesthesia, General
- Anti-Inflammatory Agents, Non-Steroidal/administration & dosage
- Anti-Inflammatory Agents, Non-Steroidal/therapeutic use
- Biomarkers
- C-Reactive Protein/analysis
- C-Reactive Protein/metabolism
- Dipyrone/administration & dosage
- Dipyrone/therapeutic use
- Double-Blind Method
- Drug Administration Schedule
- Female
- Fentanyl/administration & dosage
- Fentanyl/therapeutic use
- Humans
- Hydrocortisone/blood
- Hydrocortisone/metabolism
- Hysterectomy
- Inflammation/blood
- Inflammation/drug therapy
- Inflammation/etiology
- Inflammation/prevention & control
- Infusions, Intravenous
- Injections, Intravenous
- Interleukin-10/blood
- Interleukin-10/metabolism
- Interleukin-6/blood
- Interleukin-6/metabolism
- Intraoperative Complications/drug therapy
- Intraoperative Complications/prevention & control
- Kinetics
- Middle Aged
- Morphine/administration & dosage
- Morphine/therapeutic use
- Narcotics/administration & dosage
- Narcotics/therapeutic use
- Pain, Postoperative/drug therapy
- Piperidines/administration & dosage
- Piperidines/therapeutic use
- Postoperative Complications/drug therapy
- Postoperative Complications/prevention & control
- Remifentanil
- Stress, Physiological/blood
- Stress, Physiological/drug therapy
- Stress, Physiological/etiology
- Stress, Physiological/prevention & control
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Gorostegui M, Martínez E, Llort A, Gros L, Dapena J, Hidalgo E, Oliveras M, Díaz de Heredia C, Bastida P, Sánchez de Toledo J. Carboxipeptidasa G 2 (CPDG 2 ) en el rescate de la nefrotoxicidad inducida por metotrexato a altas dosis (MTXHD). An Pediatr (Barc) 2007. [DOI: 10.1016/s1695-4033(07)70448-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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173
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Farré M, Martínez E, Barceló D. Validation of interlaboratory studies on toxicity in water samples. Trends Analyt Chem 2007. [DOI: 10.1016/j.trac.2006.10.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Irigoyen M, Ansó E, Martínez E, Garayoa M, Martínez-Irujo JJ, Rouzaut A. Hypoxia alters the adhesive properties of lymphatic endothelial cells. A transcriptional and functional study. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2007; 1773:880-90. [PMID: 17442415 DOI: 10.1016/j.bbamcr.2007.03.001] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2006] [Revised: 02/27/2007] [Accepted: 03/01/2007] [Indexed: 12/19/2022]
Abstract
Recent advances in our understanding of the molecular biology of lymphatic endothelial cells have revealed that these vessels, besides their known function in tissue homeostasis and immunity, constitute conduits for the tumor cells to metastasize. One of the factors that contribute to tumor spread is the acquisition of an angiogenic phenotype as a response to the onset of tumor hypoxia. To our knowledge, little is known about the effects of low oxygen levels on the lymphatic vasculature. Therefore, we used cDNA microarrays to study the transcriptional changes occurring in hypoxia exposed lymphatic endothelial cells. Our analysis was then complemented by functional assays showing that these cells responded with increased attachment to the extracellular matrix, delayed proliferation and production of reactive oxygen species. Differential expression of genes involved in these processes such as NADPH oxidase 4, the tissue inhibitor of metalloproteinase 3, and TGFbeta induced protein I, was found. Hypoxia was also found to increase mRNA levels of the cytokine CXCL-12 and its receptor CXCR4. Moreover, adhesion experiments revealed that hypoxia increased the binding of non-small cell lung carcinoma cells to this endothelium in a CXCR4 dependent way. We thus illustrate the response of lymphatic endothelial cells to hypoxia and suggest targets to study tumor metastasis through these vessels.
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175
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Martínez E, Pérez-Penichet C, Sotolongo-Costa O, Ramos O, Måløy KJ, Douady S, Altshuler E. Uphill solitary waves in granular flows. PHYSICAL REVIEW. E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS 2007; 75:031303. [PMID: 17500689 DOI: 10.1103/physreve.75.031303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2006] [Revised: 01/20/2007] [Indexed: 05/15/2023]
Abstract
We have experimentally observed uphill solitary waves in the surface flow on a granular material. A heap is constructed by injecting sand between two vertical glass plates separated by a distance much larger than the average grain size, with an open boundary. As the heap reaches the open boundary, solitary fluctuations appear on the flowing layer and move "up the hill" (i.e., against the direction of the flow). We explain the phenomenon in the context of stop-and-go traffic models.
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