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Generoso A, Alvarez M, Capitle E. TEASING OUT ALLERGY VERSUS INFECTION IN A PATIENT WITH SEPTIC SHOCK. Ann Allergy Asthma Immunol 2018. [DOI: 10.1016/j.anai.2018.09.248] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Kandolf Sekulovic L, Guo J, Agarwala S, Hauschild A, McArthur G, Cinat G, Wainstein A, Caglevic C, Lorigan P, Gogas H, Alvarez M, Duncombe R, Lebbe C, Peris K, Rutkowski P, Stratigos A, Forsea AM, De La Cruz Merino L, Kukushkina M, Dummer R, Hoeller C, Gorry C, Bastholt L, Herceg D, Neyns B, Vieira R, Arenberger P, Bylaite-Bucinskiene M, Babovic N, Banjin M, Putnik K, Todorovic V, Kirov K, Ocvirk J, Zhukavets A, Ymeri A, Stojkovski I, Garbe C. Access to innovative medicines for metastatic melanoma worldwide: Melanoma World Society and European Association of Dermato-oncology survey in 34 countries. Eur J Cancer 2018; 104:201-209. [PMID: 30388700 DOI: 10.1016/j.ejca.2018.09.013] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2018] [Accepted: 09/12/2018] [Indexed: 12/19/2022]
Abstract
According to data from recent studies from Europe, a large percentage of patients have restricted access to innovative medicines for metastatic melanoma. Melanoma World Society and European Association of Dermato-oncology conducted a Web-based survey on access to first-line recommended treatments for metastatic melanoma by current guidelines (National Comprehensive Center Network, European Society for Medical Oncology [ESMO] and European Organization for Research and Treatment of Cancer/European Association of Dermato-oncology/European dermatology Forum) among melanoma experts from 27 European countries, USA, China, Australia, Argentina, Brazil, Chile and Mexico from September 1st, 2017 to July 1st, 2018. Data on licencing and reimbursement of medicines and the number of patient treated were correlated with the data on health expenditure per capita (HEPC), Mackenbach score of health policy performance, health technology assessment (HTA), ASCO and ESMO Magnitude of clinical benefit scale (ESMO MCBS) scores of clinical benefit and market price of medicines. Regression analysis for evaluation of correlation between the parameters was carried out using SPSS software. The estimated number of patients without access in surveyed countries was 13768. The recommended BRAFi + MEKi combination and anti-PD1 immunotherapy were fully reimbursed/covered in 19 of 34 (55.8%) and 17 of 34 (50%) countries, and combination anti-CTLA4+anti-PD1 in was fully covered in 6 of 34 (17.6%) countries. Median delay in reimbursement was 991 days, and it was in significant correlation with ESMO MCBS (p = 0.02), median market price (p = 0.001), HEPC and Mackenbach scores (p < 0.01). Price negotiations or managed entry agreements (MEAs) with national authorities were necessary for reimbursement. In conclusion, great discrepancy exists in metastatic melanoma treatment globally. Access to innovative medicines is in correlation with economic parameters as well as with healthcare system performance parameters. Patient-oriented drug development, market access and reimbursement pathways must be urgently found.
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Vivancos A, Aranda Aguilar E, Benavides M, Elez Fernandez E, Toledano M, Alvarez M, Diaz Rubio E, Gómez-España A, Garcia-Barberan V, Chica-Parrao M. Evaluation of the sensitivity of RAS mutation detection of the Idylla platform in comparison to the OncoBEAM RAS CRC assay. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy281.096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Gonzalez-Foruria I, Martinez F, Rodriguez-Purata J, Rodriguez D, Rodriguez I, Alvarez M, Nicolau J, Coroleu B, Barri P, Polyzos N. Progesterone variation on the day of oocyte triggering: a prospective study with repeated measurements within the same patient. Is the progesterone elevation “story” still valid? Fertil Steril 2018. [DOI: 10.1016/j.fertnstert.2018.07.936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Egea M, Garcia-Urra F, Bellver JA, Alvarez M, Waweru C, Quesada A. P924Economic impact associated with complications of cardiac implantable electronic devices in spain. Europace 2018. [DOI: 10.1093/europace/euy015.525] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Janjua NZ, Islam N, Wong J, Yoshida EM, Ramji A, Samji H, Butt Z, Chong M, Alvarez M, Cook D, Tyndall M, Krajden M. A162 SHIFT IN DISPARITIES IN HCV TREATMENT FROM INTERFERON TO DAA ERA: A POPULATION BASED COHORT STUDY. J Can Assoc Gastroenterol 2018. [DOI: 10.1093/jcag/gwy008.163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Gunturiz Beltran C, Bertomeu Gonzalez V, Moreno Arribas J, Perez L, Martinez Ferrer JB, Alzueta J, Arcocha MF, Arenal A, Vinolas X, Alvarez M, Anguera I, Porro R, Castillo Castillo J, Bellver A, Mont L. P874Analysis of efficacy of event discrimination algorithm added to standard programming strategies based on cycle length and detection intervals in implantable defibrillator. Europace 2018. [DOI: 10.1093/europace/euy015.477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Gunturiz Beltran C, Bertomeu Gonzalez V, Moreno Arribas J, Perez L, Martinez Ferrer JB, Alzueta J, Arcocha MF, Arenal A, Vinolas X, Alvarez M, Anguera I, Porro R, Castillo Castillo J, Bellver A, Mont L. P1228Individual discriminators contribution to the reduction of inappropriate therapies in implantable defibrillators. Europace 2018. [DOI: 10.1093/europace/euy015.709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Alvarez M. Can EMG help elucidate other possible cause of gait impairment in PD? Parkinsonism Relat Disord 2018. [DOI: 10.1016/j.parkreldis.2017.11.218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Andersen J, Rauch J, Sestito D, De Souza E, Miller N, Cheesman N, Alvarez M. Session Rating of Perceived Exertion (sRPE), workload, and volume load relationships during off-season resistance training in NCAA division II baseball players: An exploratory analysis. Phys Ther Sport 2017. [DOI: 10.1016/j.ptsp.2017.08.056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Ortega Ferrusola C, Anel-López L, Ortiz-Rodriguez JM, Martin Muñoz P, Alvarez M, de Paz P, Masot J, Redondo E, Balao da Silva C, Morrell JM, Rodriguez Martinez H, Tapia JA, Gil MC, Anel L, Peña FJ. Stallion spermatozoa surviving freezing and thawing experience membrane depolarization and increased intracellular Na . Andrology 2017; 5:1174-1182. [PMID: 28973824 DOI: 10.1111/andr.12419] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Revised: 07/03/2017] [Accepted: 07/25/2017] [Indexed: 12/13/2022]
Abstract
In order to gain insight of the modifications that freezing and thawing cause to the surviving population of spermatozoa, changes in the potential of the plasma membrane (Em) and intracellular Na+ content of stallion spermatozoa were investigated using flow cytometry. Moreover, caspase 3 activity was also investigated and the functionality of the Na+ -K+ ATPase pump was investigated before and after freezing and thawing. Cryopreservation caused a significant (p < 0.001) increase in the subpopulation of spermatozoa with depolarized sperm membranes, concomitantly with an increase (p < 0.05) in intracellular Na+ . These changes occurred in relation to activation of caspase 3 (p < 0.001). Cryopreservation reduced the activity of the Na-K+ pump and inhibition of the Na+ -K+ ATPase pump with ouabain-induced caspase 3 activation. It is concluded that inactivation of Na+ -K+ ATPase occurs during cryopreservation, an inhibition that could play a role explaining the accelerated senescence of the surviving population of spermatozoa.
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Janjua NZ, Islam N, Wong J, Yoshida EM, Ramji A, Samji H, Butt ZA, Chong M, Cook D, Alvarez M, Darvishian M, Tyndall M, Krajden M. Shift in disparities in hepatitis C treatment from interferon to DAA era: A population-based cohort study. J Viral Hepat 2017; 24:624-630. [PMID: 28130810 DOI: 10.1111/jvh.12684] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Accepted: 12/22/2016] [Indexed: 12/15/2022]
Abstract
We evaluated the shift in the characteristics of people who received interferon-based hepatitis C virus (HCV) treatments and those who received recently introduced direct-acting antivirals (DAAs) in British Columbia (BC), Canada. The BC Hepatitis Testers Cohort includes 1.5 million individuals tested for HCV or HIV, or reported cases of hepatitis B and active tuberculosis in BC from 1990 to 2013 linked to medical visits, hospitalization, cancer, prescription drugs and mortality data. This analysis included all patients who filled at least one prescription for HCV treatment until 31 July 2015. HCV treatments were classified as older interferon-based treatments including pegylated interferon/ribavirin (PegIFN/RBV) with/without boceprevir or telaprevir, DAAs with RBV or PegIFN/RBV, and newer interferon-free DAAs. Of 11 886 people treated for HCV between 2000 and 2015, 1164 (9.8%) received interferon-free DAAs (ledipasvir/sofosbuvir: n=1075; 92.4%), while 452 (3.8%) received a combination of DAAs and RBV or PegIFN/RBV. Compared to those receiving interferon-based treatment, people with HIV co-infection (adjusted odds ratio [aOR]: 2.96, 95% CI: 2.31-3.81), cirrhosis (aOR: 1.77, 95% CI: 1.45-2.15), decompensated cirrhosis (aOR: 1.72, 95% CI: 1.31-2.28), diabetes (aOR: 1.30, 95% CI: 1.10-1.54), a history of injection drug use (aOR: 1.34, 95% CI: 1.09-1.65) and opioid substitution therapy (aOR: 1.30, 95% CI: 1.01-1.67) were more likely to receive interferon-free DAAs. Socio-economically marginalized individuals were significantly less likely (most deprived vs most privileged: aOR: 0.71, 95% CI: 0.58-0.87) to receive DAAs. In conclusion, there is a shift in prescription of new HCV treatments to previously excluded groups (eg HIV-co-infected), although gaps remain for the socio-economically marginalized populations.
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Gunturiz Beltran C, Bertomeu-Gonzalez V, Moreno-Arribas J, Perez L, Martinez-Ferrer J, Alzueta J, Arcocha M, Arenal A, Vinolas X, Alvarez M, Anguera I, Porro R, Castillo-Castillo J, Cordero A, Bertomeu-Martinez V. 3875Discriminators algorithm integrated into implantable defibrillator: diagnostic capacity analysis and impact in the reduction of inappropriate therapies. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx504.3875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Pradat P, Pugliese P, Poizot-Martin I, Valantin MA, Cuzin L, Reynes J, Billaud E, Huleux T, Bani-Sadr F, Rey D, Frésard A, Jacomet C, Duvivier C, Cheret A, Hustache-Mathieu L, Hoen B, Cabié A, Cotte L, Chidiac C, Ferry T, Ader F, Biron F, Boibieux A, Miailhes P, Perpoint T, Schlienger I, Lippmann J, Braun E, Koffi J, Longuet C, Guéripel V, Augustin-Normand C, Brochier C, Degroodt S, Pugliese P, Ceppi C, Cua E, Cottalorda J, Courjon J, Dellamonica P, Demonchy E, De Monte A, Durant J, Etienne C, Ferrando S, Fuzibet J, Garraffo R, Joulie A, Risso K, Mondain V, Naqvi A, Oran N, Perbost I, Pillet S, Prouvost-Keller B, Wehrlen-Pugliese S, Rosenthal E, Sausse S, Rio V, Roger P, Brégigeon S, Faucher O, Obry-Roguet V, Orticoni M, Soavi M, Geneau de Lamarlière P, Laroche H, Ressiot E, Carta M, Ducassou M, Jacquet I, Gallie S, Galinier A, Ritleng A, Ivanova A, Blanco-Betancourt C, Lions C, Debreux C, Obry-Roguet V, Poizot-Martin I, Agher R, Katlama C, Valantin M, Duvivier C, Lortholary O, Lanternier F, Charlier C, Rouzaud C, Aguilar C, Henry B, Lebeaux D, Cessot G, Gergely A, Consigny P, Touam F, Louisin C, Alvarez M, Biezunski N, Cuzin L, Debard A, Delobel P, Delpierre C, Fourcade C, Marchou B, Martin-Blondel G, Porte M, Mularczyk M, Garipuy D, Saune K, Lepain I, Marcel M, Puntis E, Atoui N, Casanova M, Faucherre V, Jacquet J, Le Moing V, Makinson A, Merle De Boever C, Montoya-Ferrer A, Psomas C, Reynes J, Raffi F, Allavena C, Billaud E, Biron C, Bonnet B, Bouchez S, Boutoille D, Brunet C, Jovelin T, Hall N, Bernaud C, Morineau P, Reliquet V, Aubry O, Point P, Besnier M, Larmet L, Hüe H, Pineau S, André-Garnier E, Rodallec A, Choisy P, Vandame S, Huleux T, Ajana F, Alcaraz I, Baclet V, Huleux T, Melliez H, Viget N, Valette M, Aissi E, Allienne C, Meybeck A, Riff B, Bani-Sadr F, Rouger C, Berger J, N'Guyen Y, Lambert D, Kmiec I, Hentzien M, Lebrun D, Migault C, Rey D, Batard M, Bernard-Henry C, Cheneau C, de Mautort E, Fischer P, Partisani M, Priester M, Lucht F, Frésard A, Botelho-Nevers E, Gagneux-Brunon A, Cazorla C, Guglielminotti C, Daoud F, Lutz M, Jacomet C, Laurichesse H, Lesens O, Vidal M, Mrozek N, Corbin V, Aumeran C, Baud O, Casanova S, Coban D, Hustache-Mathieu L, Thiebaut-Drobacheff M, Foltzer A, Gendrin V, Bozon F, Chirouze C, Abel S, Cabié A, Césaire R, Santos GD, Fagour L, Najioullah F, Ouka M, Pierre-François S, Pircher M, Rozé B, Hoen B, Ouissa R, Lamaury I. Direct-acting antiviral treatment against hepatitis C virus infection in HIV-Infected patients - "En route for eradication"? J Infect 2017; 75:234-241. [PMID: 28579302 DOI: 10.1016/j.jinf.2017.05.008] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Revised: 03/17/2017] [Accepted: 05/11/2017] [Indexed: 02/07/2023]
Abstract
OBJECTIVES Direct-Acting Antivirals (DAAs) opened a new era in HCV treatment. We report the impact of HCV treatment in French HIV-HCV coinfected patients. METHODS All HIV-HCV patients from the Dat'AIDS cohort followed between 2012 and 2015 were included. HCV status was defined yearly as naive, spontaneous cure, sustained virological response (SVR12), failure or reinfection. RESULTS Among 32,945 HIV-infected patients, 15.2% were positive for anti-HCV antibodies. From 2012 to 2015, HCV incidence rate increased from 0.35%PY to 0.69%PY in MSM, while median incidence was 0.08%PY in other patients. Median reinfection rate was 2.56%PY in MSM and 0.22%PY in other patients. HCV treatment initiation rate rose from 8.2% in 2012 to 29.6% (48.0% in pre-treated patients vs 22.6% in naïve patients). SVR12 rate increased from 68.7% to 95.2%. By the end of 2015, 62.7% of the patients were cured either spontaneously or following SVR. CONCLUSIONS HCV treatment dramatically increased in HIV-HCV patients in France from 2012 to 2015 resulting in HCV cure in nearly two-thirds of the patients in this cohort. Combined with a declining HCV prevalence, the prevalence of active HCV infection among HIV patients will drastically decrease in the forthcoming years.
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Villanova O, Dubois D, Sapin F, Lang S, Debard A, Lelièvre L, Alvarez M, Marchou B, Delobel P, Martin-Blondel G. Amélioration des modalités de prélèvement des hémocultures aéro-anaérobies au sein d’un service de maladies infectieuses. Med Mal Infect 2017. [DOI: 10.1016/j.medmal.2017.03.373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Islam N, Krajden M, Gilbert M, Gustafson P, Yu A, Kuo M, Chong M, Alvarez M, Wong J, Tyndall MW, Janjua NZ. Role of primary T-cell immunodeficiency and hepatitis B coinfection on spontaneous clearance of hepatitis C: The BC Hepatitis Testers Cohort. J Viral Hepat 2017; 24:421-429. [PMID: 27885757 DOI: 10.1111/jvh.12650] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2016] [Accepted: 10/29/2016] [Indexed: 12/13/2022]
Abstract
T-cell host immune response against hepatitis C virus (HCV) has been suggested to play an important role in determining HCV infection outcome. However, data from human studies are not available. This study examined the effect of primary T-cell deficiency along with other factors on the spontaneous clearance of HCV in a large population-based cohort in British Columbia, Canada. The BC Hepatitis Testers Cohort includes all individuals tested for HCV in BC in 1990-2013 linked with data on their medical visits, hospitalizations and prescription drugs. HCV-positive individuals with at least one valid HCV PCR test on/after HCV diagnosis (n=46 783) were included in this study. To examine factors associated with the spontaneous clearance of HCV, multivariable logistic regression was fitted on the full sample, and Cox proportional hazards model on the HCV seroconverters. Spontaneous clearance was observed in 25.1% (n=11 737) of those tested for HCV. After adjusting for potential confounders, the odds of spontaneous clearance of HCV was lower in people with primary T-cell immunodeficiency (adjusted odds ratio [aOR]: 0.55, 95% CI: 0.32-0.94), and higher in females (aOR: 1.61, 95% CI: 1.54-1.68) and in those coinfected with HBV (aOR: 2.31, 95% CI: 1.93-2.77). Similar results were observed in HCV seroconverters except HBV coinfection was not significant. In conclusion, primary T-cell immunodeficiency is associated with a lower spontaneous clearance of HCV while female sex and coinfection with HBV are associated with a higher spontaneous clearance.
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Johnson DA, Colton MD, Alvarez M, Laden F, Redline S, Adamkiewicz G. 0833 SLEEP PATTERNS IN GREEN VS CONVENTIONAL MULTIFAMILY LOW-INCOME HOUSING. Sleep 2017. [DOI: 10.1093/sleepj/zsx050.832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Fernández-Caballero JA, Alvarez M, Chueca N, Pérez AB, García F. The cobas® HCV GT is a new tool that accurately identifies Hepatitis C virus genotypes for clinical practice. PLoS One 2017; 12:e0175564. [PMID: 28410425 PMCID: PMC5391928 DOI: 10.1371/journal.pone.0175564] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2016] [Accepted: 03/28/2017] [Indexed: 12/24/2022] Open
Abstract
Objective We aimed to evaluate the correct assignment of HCV genotype/subtypes 1a and 1b by cobas® HCV genotyping (GT) assay (Roche Molecular Diagnostics) compared with nonstructural protein 5B (NS5B) sequencing. Patients and methods Clinical samples from 153 patients submitted for HCV genotyping were studied. After genotyping with the cobas® HCV GT, sequencing of a 387 bp fragment in the NS5B gene and phylogenetic analysis was employed to compare genotyping results. Major discrepancies were defined as differences in the assigned genotype by cobas® HCV GT and NS5B sequencing (including genotype 1 subtypes 1a and 1b misclassification). Results Overall agreement between the cobas® HCV GT and NS5B sequencing was 98%; all the 1a, 1b, 2, 3 and 4 genotypes identified by cobas® HCV GT were concordant with NS5B sequencing. Three samples tested “indetermined” by cobas® HCV GT assay and were genotyped as 1a, 3a, and 4d by NS5B sequencing. Conclussion These results indicate that the cobas® HCV GT assay correctly identifies HCV genotypes, and points out the importance of additional methods based on DNA sequencing for resolving indeterminate results.
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Cárcamo JG, Aguilar MN, Carreño CF, Vera T, Arias-Darraz L, Figueroa JE, Romero AP, Alvarez M, Yañez AJ. Consecutive emamectin benzoate and deltamethrin treatments affect the expressions and activities of detoxification enzymes in the rainbow trout (Oncorhynchus mykiss). Comp Biochem Physiol C Toxicol Pharmacol 2017; 191:129-137. [PMID: 27765649 DOI: 10.1016/j.cbpc.2016.10.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2016] [Revised: 10/13/2016] [Accepted: 10/13/2016] [Indexed: 01/12/2023]
Abstract
Rainbow trout (Oncorhynchus mykiss) subjected to three consecutive, alternating treatments with emamectin benzoate (EMB) and deltamethrin (DM) during outbreaks of Caligus rogercresseyi in a farm located in southern Chile (Hornopiren, Chiloé), were studied to determine the effects of these treatments on the protein and enzymatic activity levels of cytochrome P450 1A (CYP1A), flavin-containing monooxygenase (FMO) and glutathione S-transferase (GST) in different tissues. Consecutive and alternating EMB/DM treatments resulted in a 10-fold increase and 3-fold decrease of CYP1A protein levels in the intestine and gills, respectively. Notably, CYP1A activity levels decreased in most of the analyzed tissues. FMO protein and activity levels markedly increased in the kidney and the intestine. GST was up-regulated in all tissues, either as protein or enzyme activity. When comparing consecutive EMB/DM treatments against previous studies of EMB treatment alone, CYP1A activity levels were similarly diminished, except in muscle. Likewise, FMO activity levels were increased in most of the analyzed tissues, particularly in the muscle, kidney, and intestine. The increases observed for GST were essentially unchanged between consecutive EMB/DM and EMB only treatments. These results indicate that consecutive EMB/DM treatments in rainbow trout induce the expression and activity of FMO and GST enzymes and decrease CYP1A activity. These altered activities of detoxification enzymes could generate imbalances in metabolic processes, synthesis, degradation of hormones and complications associated with drug interactions. It is especially important when analyzing possible effects of consecutive antiparasitic treatments on withholding periods and salmon farming yields.
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Ortega-Ferrusola C, Anel-López L, Martín-Muñoz P, Ortíz-Rodríguez JM, Gil MC, Alvarez M, de Paz P, Ezquerra LJ, Masot AJ, Redondo E, Anel L, Peña FJ. Computational flow cytometry reveals that cryopreservation induces spermptosis but subpopulations of spermatozoa may experience capacitation-like changes. Reproduction 2016; 153:293-304. [PMID: 27965398 DOI: 10.1530/rep-16-0539] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2016] [Revised: 11/02/2016] [Accepted: 12/12/2016] [Indexed: 12/19/2022]
Abstract
The reduced lifespan of cryopreserved spermatozoa in the mare reproductive tract has been attributed to both capacitative and apoptotic changes. However, there is a lack of studies investigating both phenomena simultaneously. In order to improve our knowledge in this particular point, we studied in raw and frozen-thawed samples apoptotic and capacitative markers using a wide battery of test based in flow cytometry. Apoptotic markers evaluated were caspase 3 activity, externalization of phosphatidylserine (PS), and mitochondrial membrane potential. Markers of changes resembling capacitation were membrane fluidity, tyrosine phosphorylation, and intracellular sodium. Conventional and computational flow cytometry using nonlinear dimensionally reduction techniques (t-distributed stochastic neighbor embedding (t-SNE)) and automatic classification of cellular expression by nonlinear stochastic embedding (ACCENSE) were used. Most of the changes induced by cryopreservation were apoptotic, with increase in caspase 3 activation (P < 0.01), PS translocation to the outer membrane (P < 0.001), loss of mitochondrial membrane potential (P < 0.05), and increase in intracellular Na+ (P < 0.01). Average values of markers of capacitative changes were not affected by cryopreservation; however, the analysis of the phenotype of individual spermatozoa using computational flow cytometry revealed the presence of subpopulations of spermatozoa experiencing capacitative changes. For the first time advanced computational techniques were applied to the analysis of spermatozoa, and these techniques were able to disclose relevant information of the ejaculate that remained hidden using conventional flow cytometry.
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Gomez-Millan J, Pajares B, Perez-Villa L, Carnero A, Alvarez M, De Luque V, Rivas F, Trigo JM, Toledo MD, Alba E, Medina JA. Subcellular localisation of pMEK has a different prognosis in locally advanced head and neck cancer treated with concomitant radiochemotherapy. BMC Cancer 2016; 16:829. [PMID: 27793200 PMCID: PMC5084350 DOI: 10.1186/s12885-016-2869-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Accepted: 10/21/2016] [Indexed: 12/30/2022] Open
Abstract
Background MEK1 (MAP2K1) and MEK2 (MAP2K2) are closely related dual-specificity protein kinases which function by phosphorylating both serine/threonine and tyrosine residues of their substrates ERK1 and ERK2, controlling fundamental cellular processes that include cell growth and proliferation. To investigate the prognostic significance of pMEK expression in the nucleus and cytoplasm among patients with locally advanced head and neck cancer treated with concurrent radiochemotherapy. Methods Immunohistochemistry was performed on the retrieved archival tissue of 96 patients to detect pMEK, p53 and Ki-67. Results Sixty-six percent of patients were positive for pMEK expression in the nucleus and 41 % in cytoplasm. On univariate analysis, high nuclear pMEK was predictive of worse 5y-DFS and 5y-OS, with a trend to significance (26 % vs. 41 %, p = 0.09; 36 % vs. 47 %, p = 0.07). High cytoplasmic pMEK was predictive of better 5-y OS and 5-y DFS outcomes (61 % vs. 27 %, p = 0.01; 46 % vs. 22 %, p = 0.02). On multivariate analysis, low cytoplasmic pMEK and high nuclear pMEK predicted worse DFS and OS (p = 0.01; p = 0.04 and p = 0.02; p = 0.02 respectively). Conclusions Subcellular localisation of pMEK has different prognosis in locally advanced head and neck cancer treated with radiochemotherapy.
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Alvarez M, Sanchez-Muñoz A, Santonja A, Fernández YP, Miramón J, Pedrinaci IZ, Llacer C, de Luque V, León ML, Jerez J, Villa LP, Lavado R, Ramirez C, Jiménez A, Rodrigo I, García E, Vicioso L, Conejo EA. Prognostic significance of immunohistochemical subtyping and PAM50 intrinsic subtypes in male breast cancer (MaBC). Ann Oncol 2016. [DOI: 10.1093/annonc/mdw365.68] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Nardocci G, Simonet NG, Navarro C, Längst G, Alvarez M. Differential enrichment of TTF-I and Tip5 in the T-like promoter structures of the rDNA contribute to the epigenetic response of Cyprinus carpio during environmental adaptation. Biochem Cell Biol 2016; 94:315-21. [PMID: 27458840 DOI: 10.1139/bcb-2016-0015] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
To ensure homeostasis, ectothermic organisms adapt to environmental variations through molecular mechanisms. We previously reported that during the seasonal acclimatization of the common carp Cyprinus carpio, molecular and cellular functions are reprogrammed, resulting in distinctive traits. Importantly, the carp undergoes a drastic rearrangement of nucleolar components during adaptation. This ultrastructural feature reflects a fine modulation of rRNA gene transcription. Specifically, we identified the involvement of the transcription termination factor I (TTF-I) and Tip-5 (member of nucleolar remodeling complex, NoRC) in the control of rRNA transcription. Our results suggest that differential Tip5 enrichment is essential for silencing carp ribosomal genes and that the T0 element is key for regulating the ribosomal gene during the acclimatization process. Interestingly, the expression and content of Tip5 were significantly higher in winter than in summer. Since carp ribosomal gene expression is lower in the winter than in summer, and considering that expression concomitantly occurs with nucleolar ultrastructural changes of the acclimatization process, these results indicate that Tip5 importantly contributes to silencing the ribosomal genes. In conclusion, the current study provides novel evidence on the contributions of TTF-I and NoRC in the environmental reprogramming of ribosomal genes during the seasonal adaptation process in carp.
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Lopez-Urueña E, Anel-López L, Borragan S, Ortega Ferrusola C, Manrique P, de Paz P, Anel L, Alvarez M. The use of gelatine in long-term storage (up to 48 hr) at 5°C preserves the pre-freezing and post-thawing quality of brown bear sperm. Reprod Domest Anim 2016; 51:700-7. [PMID: 27418181 DOI: 10.1111/rda.12734] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2015] [Accepted: 06/19/2016] [Indexed: 12/17/2022]
Abstract
Sedimentation of spermatozoa occurs during long-term liquid storage and this may produce deleterious changes. Our aim was to apply gelatine supplementation during long-term pre-freezing storage of bear sperm, applying final dilution and 6% glycerol at room temperature and cool in straws. We tested four models of sperm storage using a 1:1 dilution in TTF-ULE-Bear extender (TesT-fructose-egg yolk-glycerol 6%): (i) second 1:1 dilution at room temperature (RT), cooling at 5°C in a tube and final dilution (100 × 10(6) sperm ml(-1) ) (Standard); (ii) final dilution at RT and cooling in a tube (FD-Tube); (iii) final dilution at RT and cooling in 0.25 ml plastic straw (FD-Straw); and (iv) final dilution at RT in extender supplemented with 1.5% gelatine (Gelatine) and cooling in a 0.25 ml plastic straw. A Standard sample was stored at 5°C for 1 hr (Control); the rest of the samples (Standard, FD-Tube, FD-Straw, Gelatine) were stored for 24 or 48 hrs before freezing (100 × 10(6) sperm ml(-1) , glycerol 6%). The quality of the samples was assessed for motility by CASA, and viability (SYBR-14/propidium iodide-PI-; VIAB), acrosomal status (PNA-FITC/PI; iACR) and apoptotic status (YO-PRO-1/PI; YOPRO-) by flow cytometry. At pre-freezing, after 48 hr, Gelatine showed significantly higher viability (for VIAB and YOPRO-) and progressiveness (PM, LIN and STR). At 48 hr, Gelatine showed similar YOPRO-, iACR, LIN, STR and ALH respect to Control. At both 24 and 48 h post-thawing, Gelatine sample had similar scores for YOPRO-, iACR, LIN, STR, WOB and VIAB (only 24 hr) when compared with Control, and lower for TM, PM, rapidPM, VAP and ALH. No differences were found among others experimental groups with respect to Control. In conclusion, gelatine could be a suitable alternative to preserve the viability and progressive motility of brown bear ejaculates during long-term pre-freezing storage at 5°C.
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Mourguet M, Jeannel J, Laffont MA, Benouaich X, Alvarez M, Marchou B, Soler V. [Case report of cytomegalovirus anterior uveitis in an immunocompetent one-eyed patient with an intraocular dexamethasone implant]. J Fr Ophtalmol 2016; 39:e113-4. [PMID: 27155910 DOI: 10.1016/j.jfo.2015.04.028] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2014] [Revised: 04/06/2015] [Accepted: 04/10/2015] [Indexed: 10/21/2022]
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