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Vargas M, Valduvieco I, Almendro V, Domingo-Domenech J, Ametller E, Pons F, Herreros A, Muñoz M, Gascón P, Farrus B. Radiosensitivity enhancement by dual HER-1/2 inhibitor (GW572016) in SKBR3 human breast carcinoma HER-2+ cell line. J Clin Oncol 2008. [DOI: 10.1200/jco.2008.26.15_suppl.22112] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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277
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González Moles MA, Mosqueda-Taylor A, Esteban F, Gil-Montoya JA, Díaz-Franco MA, Delgado M, Muñoz M. Cell proliferation associated with actions of the substance P/NK-1 receptor complex in keratocystic odontogenic tumours. Oral Oncol 2008; 44:1127-33. [PMID: 18486533 DOI: 10.1016/j.oraloncology.2008.02.010] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2008] [Revised: 02/20/2008] [Accepted: 02/20/2008] [Indexed: 01/21/2023]
Abstract
The expression of substance P (SP) and its NK-1 receptor (NK-1R) in keratocystic odontogenic tumours (KOTs) was studied to determine whether the intrinsic growth potential of these lesions is related to a cell proliferation stimulus mediated by the SP/NK-1R complex. A total of 65 tissue samples of solitary non-recurrent KOTs, solitary recurrent KOTs, KOTs associated with nevoid basal cell carcinoma syndrome (NBCCS) and KOTs with chondroid wall were studied by immunohistochemistry, using anti-SP, anti-NK-1R and anti-Ki-67 monoclonal antibodies. Expression of these markers was analysed in infiltrating lymphocytes, in fibrous capsule, and in membrane, cytoplasm and nucleus of epithelial cells. SP expression in infiltrating lymphocytes was significantly associated with SP in fibrous capsule and epithelial cells. KOTs associated with NBCCS showed a significantly higher SP expression in all tissues and cell compartments compared with other KOT types. Finally, SP expression in epithelial cells was associated with positive Ki-67 expression in dysplastic epithelium. This first published report on SP and NK-1R expressions in KOTs demonstrates that actions of the SP/NK-1R complex may constitute a mechanism to stimulate epithelial cell proliferation in KOT. This pathway may be of special relevance in the multiple KOTs associated with NBCCS.
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Marquez M, Sutil R, Torres M, Carrizales M, Mena O, Valera R, Muñoz M, Gomez M, Yepez C, Leal M. LIPID PEROXIDATION AND VITAMIN E LEVELS IN RABBITS TREATED WITH ENALAPRIL. ATHEROSCLEROSIS SUPP 2008. [DOI: 10.1016/s1567-5688(08)70098-9] [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]
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279
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Fontvila O, Mestres C, Muñoz M, Haro I, Alsina M, Pujol M. Surface behaviour and peptide–lipid interactions of the E1(3-17)R and E1(3-17)G peptides from E1 capside protein of GBV-C/HGV virus. Colloids Surf A Physicochem Eng Asp 2008. [DOI: 10.1016/j.colsurfa.2008.02.015] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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280
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Gómez E, Rodríguez A, Muñoz M, Caamaño J, Hidalgo C, Morán E, Facal N, Díez C. Serum free embryo culture medium improves in vitro survival of bovine blastocysts to vitrification. Theriogenology 2008; 69:1013-21. [DOI: 10.1016/j.theriogenology.2007.12.015] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2007] [Revised: 12/14/2007] [Accepted: 12/24/2007] [Indexed: 10/22/2022]
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281
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Beris P, Muñoz M, García-Erce J, Thomas D, Maniatis A, Van der Linden P. Perioperative anaemia management: consensus statement on the role of intravenous iron. Br J Anaesth 2008; 100:599-604. [DOI: 10.1093/bja/aen054] [Citation(s) in RCA: 161] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
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282
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Muñoz M, Breymann C, García-Erce JA, Gómez-Ramírez S, Comin J, Bisbe E. Efficacy and safety of intravenous iron therapy as an alternative/adjunct to allogeneic blood transfusion. Vox Sang 2008; 94:172-183. [PMID: 18069918 DOI: 10.1111/j.1423-0410.2007.01014.x] [Citation(s) in RCA: 70] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Anaemia is a common condition among patients admitted to hospital medicosurgical departments, as well as in critically ill patients. Anaemia is more frequently due to absolute iron deficiency (e.g. chronic blood loss) or functional iron deficiency (e.g. chronic inflammatory states), with other causes being less frequent. In addition, preoperative anaemia is one of the major predictive factors for perioperative blood transfusion. In surgical patients, postoperative anaemia is mainly caused by perioperative blood loss, and it might be aggravated by inflammation-induced inhibition of erythropoietin and functional iron deficiency (a condition that cannot be corrected by the administration of oral iron). All these mechanisms may be involved in the anaemia of the critically ill. Intravenous iron administration seems to be safe, as very few severe side-effects were observed, and may result in hastened recovery from anaemia and lower transfusion requirements. However, it is noteworthy that many of the recommendations given for intravenous iron treatment are not supported by a high level of evidence and this must be borne in mind when making decisions regarding its application to a particular patient. Nonetheless, this also indicates the need for further large, randomized controlled trials on the safety and efficacy of intravenous iron for the treatment of anaemia in different clinical settings.
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283
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Caamaño JN, Rodriguez A, Salas A, Muñoz M, Diez C, Prather RS, Gómez E. Flow cytometric cell cycle analysis of cultured brown bear fibroblast cells. Cell Biol Int 2008; 32:855-9. [PMID: 18396424 DOI: 10.1016/j.cellbi.2008.02.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2007] [Revised: 11/13/2007] [Accepted: 02/25/2008] [Indexed: 11/17/2022]
Abstract
The aim of this study was to assess by flow cytometry the cell cycle of brown bear fibroblast cells cultured under different growth conditions. Skin biopsies were taken in Cantabria (Spain) from a live, anaesthetized brown bear. DNA analysis was performed by flow cytometry following cell DNA staining with propidium iodide. Serum starvation increased (P<0.01) the percentage of G0/G1 phase cells (92.7+/-0.86) as compared to cycling cells (39.7+/-0.86) or cells cultured to confluency (87.3+/-0.86). DMSO included for 48h in the culture significantly increased (P<0.01) the percentage of G0/G1 phase of the cell cycle at all concentrations used and decreased percentages of S phase in a dose-dependent fashion. Roscovitine increased the G0/G1 phase of the cell cycle (P<0.01) at 15microM concentration. Interestingly, the G2/M stage significantly increased at 30 and 50microM compared to the control and 15microM (P<0.02). The cell cycle of brown bear adult fibroblast cells can be successfully synchronized under a variety of culture conditions.
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284
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Muñoz M, Smeets W, López J, Moreno N, Morona R, Domínguez L, González A. Immunohistochemical localization of neuropeptide FF-like in the brain of the turtle: Relation to catecholaminergic structures. Brain Res Bull 2008; 75:256-60. [DOI: 10.1016/j.brainresbull.2007.10.025] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2007] [Accepted: 10/17/2007] [Indexed: 10/22/2022]
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285
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Majem M, Galán M, Pérez FJ, Muñoz M, Chicote S, Soler G, Navarro M, Martínez-Villacampa M, García del Muro X, Dotor E, Laquente B, Germà JR. The oncology acute toxicity unit (OATU): an outpatient facility for improving the management of chemotherapy toxicity. Clin Transl Oncol 2008; 9:784-8. [PMID: 18158982 DOI: 10.1007/s12094-007-0140-2] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
OBJECTIVE To provide an outpatient facility to improve the management of chemotherapy toxicity in cancer patients. PATIENTS AND METHODS We set up an oncology acute toxicity unit (OATU) to improve toxicity management. A telephone helpline was the initial contact which filters out inappropriate non-toxicity-related events. Patients were provided an information booklet describing the possible side effects of the chemotherapy and the helpline telephone number. A specialist nurse received the calls and consulted the doctor if necessary. Depending on requirements, the patient's problem was resolved by telephone, or a consultation visit at the OATU was arranged. RESULTS Between February 1999 and August 2001, 1126 patients made 2007 contacts with the OATU. The most common tumours were breast (26%), colorectal (20%) and lung (20%). The telephone helpline was used in 87% of contacts and 37% were considered inappropriate. Of the 1263 appropriate contacts, the most frequent chemotherapy schedules that had been administered were 5FU-leucovorin (11.2%) and CMF (10.4%). The most frequent side effects were fever (35.5%), diarrhoea (18.5%), mucositis (16.2%) and emesis (13%). The problem was resolved by telephone in 48% of cases and 52% required attendance in the OATU, of which 40% required hospital admission, i.e., 21.1% of the initial appropriate helpline contacts. The most frequent reason was Grade 3-4 neutropenic fever (56.5%). CONCLUSIONS The OATU enables prompt and efficient access of patients to medical oncology facilities in the event of toxicity due to chemotherapy. Unnecessary emergency room use is avoided while oncology outpatient and hospitalisation facilities are optimised.
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Muñoz M, Leal-Noval SR, García-Erce JA, Naveira E. [Prevalence and treatment of anemia in critically ill patients]. Med Intensiva 2008; 31:388-98. [PMID: 17942062 DOI: 10.1016/s0210-5691(07)74843-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Anemia is a common condition among medical and surgical patients admitted to the intensive care unit (ICU) and generally has a multifactorial origin. In order to avoid the deleterious effects of anemia, 40% of ICU patients receive allogenic blood transfusion (ABT). This figure increases up to 70% if the ICU stay is longer than 7 days. However, ABT is associated with a dose-dependent increase in morbidity and mortality. In contrast, the administration of exogenous erythropoietin plus iron supplements, especially iv iron, improves anemia and reduces ABT requirements, although it does not reduce mortality. To ascertain whether treatment of anemia in the critically ill with exogenous erythropoietin and iron might improve outcomes and to optimize drug administration schedules and dosage, further studies with sufficient statistical power and adequate follow-up are warranted.
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Caamaño JN, Muñoz M, Álvarez-Viejo M, Díez C, de Frutos C, Rodríguez A, Facal N, Otero J, Gómez E. 240 DEVELOPMENT, DIFFERENTIATION, AND Trk EXPRESSION IN PARTHENOGENETIC BOVINE BLASTOCYSTS. Reprod Fertil Dev 2008. [DOI: 10.1071/rdv20n1ab240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Parthenogenetic embryos allow study of the roles of paternal and maternal genomes in early mammalian development. Nevertheless, pregnancies established with parthenotes arrest around 48 days. Genomic imprinting alterations, fewer cells, and apoptotic index are higher in parthenotes than in IVF embryos and are likely to contribute to the failure to reach full-term development. Neurotrophins are a family of anti-apoptotic cytokines that mediate survival, growth, and differentiation by binding to two types of cell surface receptors, tyrosine kinase (Trk) and the low affinity p75 neurotrophin receptor (p75). Trk and p75 receptors have been localized in early bovine in vitro-produced embryos. At present there are no available data on expression of Trk and numbers of cells in the inner cell mass (ICM) and the trophectoderm (TE) of parthenogenetic embryos. The aim of this study was to evaluate the quality of bovine parthenotes in terms of cell allocation and blastocyst development, and to analyze TrkA, TrkB, and TrKC expression in the ICM and TE. Starting from in vitro-matured slaughterhouse oocytes, embryos were produced by conventional IVF, while parthenotes resulted from ionomycin activation followed by 6-dimethylaminopurine. Zygotes were cultured in SOF + 6 gL– 1 BSA. In vitro development was assessed for IVF embryos on (and referred to on) Days 3, 6, 7, and 8 after fertilization, and 24 h before these time points for parthenotes. Data were analyzed by the GLM procedure of SAS SAS Institute, Inc., Cary, NC, USA). Parthenotes cleaved at rates similar to IVF embryos (80.8 � 3.9 v. 85.8 � 3.9, respectively), but percentages of 5–8 and 8–16 cell stages were lower in parthenotes (40.4 � 4.3 v. 67.9 � 4.3, P < 0.005, and 9.7 � 3.5 v. 25.3 � 3.5, P < 0.01, respectively). However, parthenogenetic blastocyst rates were higher than those in IVF embryos (Day 6: 33.6 � 2.6 v. 11.0 � 2.6, P < 0.005; Day 7: 49.2 � 4.1 v. 30.0 � 4.1, P < 0.02). Double staining showed fewer TE cells in parthenotes (78.7 � 8.5) than in IVF embryos (111.0 � 8.6, P < 0.02). This reduction accounted for a reduced number of total cells in parthenotes (105.3 � 9.9) v. controls (144.0 � 9.8, P < 0.01), while numbers of cells in the ICM were comparable (27.9 � 3.5 v. 31.1 � 3.5, in parthenotes and controls, respectively). As in the case of IVF embryos, immunocytochemical analysis showed positive staining for Trk receptors in parthenotes. Although parthenotes showed blastocyst development rates higher than in IVF embryos, the reduced amount of TE cells in parthenotes could negatively affect implantation. Interestingly, parthenotes do not contain abnormally reduced cell numbers in their ICM, and they express Trks. Therefore, specific stimulation of these receptors with appropriate cytokines could improve blastocyst development and embryonic stem cell derivation.
This work was supported by the Spanish Ministry of Science and Education (AGL2005-04479). Dr. Muñoz was supported by FICYT.
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Gómez E, Caamaño JN, Muñoz M, Rodríguez A, Facal N, Díez C. 127 DEVELOPMENT AND QUALITY OF BOVINE MORULAE CULTURED IN SERUM-FREE MEDIUM WITH RETINOIC RECEPTOR SPECIFIC AGONISTS. Reprod Fertil Dev 2008. [DOI: 10.1071/rdv20n1ab127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
In the cell, all-trans retinoic acid (ATRA), a vitamin A metabolite, binds to retinoic acid-receptor (RAR), whereas the ATRA isomere 9-cis-retinoic acid (9-cis-RA) binds to both RAR and the retinoid X receptor (RXR). Synthetic compounds such as LG100268 (LG; Ligand Laboratories) are highly specific to bind RXR, which allows to differentially study the RAR and RXR pathways. In previous work morulae treated with LG for 48 h showed to improve blastocyst development and to activate pro-apoptotic genes (in press), whereas ATRA for 24 h increased cell numbers in the inner cell mass (ICM) and the trophectoderm (TE) (Rodr�guez et al. 2006 Hum. Reprod. 21, 2149–2157). However, LG and ATRA were never both compared for 24 in medium with BSA, which is thought to be more appropriate to produce embryos for cryopreservation than serum-containing medium. In this work we analyze development, quality, and viability of morulae cultured with RAR and RXR agonists. Cumulus–oocyte complexes from slaughterhouse ovaries were matured and fertilized in vitro. Presumptive zygotes were cultured in synthetic oviduct fluid (SOF) +3 gL–1 BSA. On day 6, morulae were treated for 24 h with ATRA 0.7 µm, LG 0.1 µm, or no additives. Blastocyst development was monitored up to day 8. Differential cell counts were made on hatched blastocysts on days 7 and 8. Apoptosis and necrosis (TUNEL + nuclear histology) were made on day 8 expanded and hatched blastocysts. Data were analyzed by GLM and Duncan's test, expressed as LSM � SE, and development rates were expressed as percentages of cultured morulae (replicates [R] = 14 for development; R = 9 for cell counts; R = 4 for apoptosis; n = 1647 morulae). ATRA yielded more blastocysts on day 8 than LG and controls (72.2 � 2.2 v. 60.0 � 2.3 and 65.6 � 2.4, respectively; P < 0.02), and more expanded blastocysts than LG (48.6 � 2.3 v. 36.6 � 2.4; P < 0.02), but no more than controls (43.5 � 2.5). Day-7 and day-8 hatched blastocysts cultured with ATRA showed more total cells than day-7 controls (163.5 � 8.0 and 161.5 � 5.4 v. 137.7 � 8.9, respectively; P < 0.05). However, in the presence of ATRA, day-8 blastocysts showed a strong cell reduction in the inner cell mass (ICM), whereas their day-7 counterparts conserved ICM/total cells proportions comparable to day-7 controls (11.0 � 1.2 v. 19.7 � 1.7 and 20.6 � 1.9, respectively; P < 0.03). The LG increased apoptotic index (AI) and necrotic index (NI) in the ICM (AI: 14.5 � 2.4 v. 6.4 � 1.5 and 6.4 � 1.4; NI: 5.0 � 1.2 v. 0.9 � 0.8 and 1.6 � 0.7; for LG, ATRA, and controls, respectively; P < 0.02). Embryos produced with ATRA showed improved development and cell distribution without increasing apoptosis and necrosis. Vitrification of excellent day-7 and day-8 blastocysts is in course to evaluate cryosurvival and further embryo transfer to determine full developmental competence.
Grant Support: MEC, project AGL2005-04479. M. Muñoz is sponsored by FICYT.
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García-Erce JA, Cuenca J, Leal-Noval SR, Muñoz M. Preoperative autologous blood donation in Spain (1994-2004). Vox Sang 2007; 93:89-90. [PMID: 17547571 DOI: 10.1111/j.1423-0410.2007.00914.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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290
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González JC, Muñoz M, García N, Barzola-Quiquia J, Spoddig D, Schindler K, Esquinazi P. Sample-size effects in the magnetoresistance of graphite. PHYSICAL REVIEW LETTERS 2007; 99:216601. [PMID: 18233237 DOI: 10.1103/physrevlett.99.216601] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2007] [Indexed: 05/25/2023]
Abstract
Conduction electrons in graphite are expected to have micrometer large de Broglie wavelength as well as mean free path. A direct influence of these lengths in the electric transport properties of finite-size samples was neglected in the past. We provide a direct evidence of this effect through the size dependence of the magnetoresistance, which decreases with the sample size even for samples hundreds of micrometers large. Our findings may explain the absence of magnetoresistance in small few graphene layers samples and ask for a general revision of the experimental and theoretical work on the transport properties of this material.
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291
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Celis-Rodríguez E, Besso J, Birchenall C, de la Cal M, Carrillo R, Castorena G, Ceraso D, Dueñas C, Gil F, Jiménez E, Meza J, Muñoz M, Pacheco C, Pálizas F, Pinilla D, Raffán F, Raimondi N, Rubiano S, Suárez M, Ugarte S. Guía de práctica clínica basada en la evidencia para el manejo de la sedo-analgesia en el paciente adulto críticamente enfermo. Med Intensiva 2007; 31:428-71. [DOI: 10.1016/s0210-5691(07)74853-2] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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292
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Rodríguez A, Díez C, Caamaño JN, de Frutos C, Royo LJ, Muñoz M, Ikeda S, Facal N, Alvarez-Viejo M, Gómez E. Retinoid receptor-specific agonists regulate bovine in vitro early embryonic development, differentiation and expression of genes related to cell cycle arrest and apoptosis. Theriogenology 2007; 68:1118-27. [PMID: 17869331 DOI: 10.1016/j.theriogenology.2007.08.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2007] [Revised: 07/27/2007] [Accepted: 08/03/2007] [Indexed: 01/28/2023]
Abstract
A major goal in reproductive biotechnology is the identification of pathways that regulate early embryonic development and the allocation of cells to the inner cell mass (ICM) and trophectoderm (TE). Retinoids regulate the development and differentiation of the bovine blastocyst in vitro, although the involvement of the retinoid X receptors (RXRs) remains to be clarified. This paper compares the effect of a synthetic RXR agonist (LG100268; LG) with that of the retinoic acid receptor (RAR) agonist all-trans retinoic acid (ATRA) on blastulation. In vitro-produced morulae were treated for 48 h with LG (0.1 microM, 1 microM and 10 microM), ATRA 0.7 microM, or no additives. Treatment with ATRA did not increase the rate of development; however, the LG 0.1 microM treatment increased both the blastocyst development and hatching rate. Cell numbers increased in the ICM with LG 10 microM, while a dose-dependent reduction was observed in the TE in the presence of LG. Gene expression levels of p53 and p66 did not vary with LG but increased with ATRA. Both LG and ATRA activated bax, a pro-apoptotic gene and H2A.Z, a cell cycle-related gene. The above effects suggest the existence of active p53-dependent and -independent apoptotic pathways for ATRA and LG, respectively, in the bovine embryo. The expression of p53 and H2A.Z showed a strong, positive correlation (r=0.93; p<0.0001) in all experimental groups; both proteins are linked through the cell cycle. Agonists of RXR could be used to control blastocyst development and differentiation.
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293
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Verna AE, Garcia-Pariente C, Muñoz M, Moreno O, García-Marin JF, Romano MI, Paolicchi F, Pérez V. Variation in the Immuno-pathological Responses of Lambs after Experimental Infection with Different Strains of Mycobacterium avium subsp. paratuberculosis. Zoonoses Public Health 2007; 54:243-52. [PMID: 17803513 DOI: 10.1111/j.1863-2378.2007.01058.x] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Ruminant infection by Mycobacterium avium subsp. paratuberculosis (MAP) causes a granulomatous inflammatory response in the intestine and associated lymph nodes. Differences either in the affected organs or in the inflammatory infiltrate were observed between species and individuals. Such differences are usually attributed to variations in host immune responses or to inconsistent effects among different MAP strains. To evaluate if different MAP strains induce different immuno-pathological responses in lambs, 28 one-month-old individuals were divided into six groups and inoculated with different MAP strains. Groups 1 and 2 were inoculated with two bovine strains isolated in Argentina that showed different genetic patterns after BstEII-IS900-RFLP (hereafter strains E and A respectively). Group 3 was inoculated with a bovine strain isolated in Spain obtained after a previous step of culture (patterns C1). Group 4 was inoculated with a homogenate of intestinal mucosa of a clinical case affected by the same bovine strain as that of group 3. Group 5 was inoculated with an ovine strain that was directly purified from the intestinal mucosa of a clinical case, and group 6 was kept as control (i.e. no inoculation). Peripheral immune responses were assessed until 150 days post-infection (dpi), when lambs were humanely killed. Pathological studies were performed in tissues from the intestine and lymph nodes. Lesion types and inflammatory infiltrates were examined as indicators of pathogenicity. All the lambs infected with bovine MAP strains showed a common lesion pattern regardless of the strain type. Such pattern was characterized by focal lesions mainly in the mesenteric lymph nodes, the presence of fibrous tissue, and, occasionally, necrosis in the granulomas as well as the presence of numerous giant cells. Differences in lesion severity were observed among groups: lambs from groups 1 and 2 had the highest number of granulomas and the largest lymph node area affected. Lesions in animals from group 5 (infected with an ovine strain) were more severe and occurred mostly in the intestinal lymphoid tissue; necrosis, fibrosis or giant cells were never detected in this group. These results indicate that the MAP strain type induces different pathological responses in lambs.
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Ruiz Moral R, Aguado C, Amian M, Baena F, Bueno JM, Fernández Fernández MJ, Fernández MA, Fernández JA, Gascón S, Gavira J, González Lama J, Hidalgo A, López Casaseca C, Martínez de la Iglesia J, Merino J, Mínguez J, Muñoz M, Ortega Millán C, Pérula de Torres L, Del Pozo R, Ruiz Moruno J, Serrano P, Sierra Duque F, Yun A. [Pilot study for the inclusion of the portfolio of the family medicine specialist book in training]. Aten Primaria 2007; 39:479-83. [PMID: 17919400 PMCID: PMC7659574 DOI: 10.1157/13109498] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2006] [Accepted: 03/21/2007] [Indexed: 11/21/2022] Open
Abstract
BACKGROUND The Spanish Family Medicine National Commission is proposing a new portfolio-type Specialist Training Book (STB). OBJECTIVE To pilot its contents, structure, and implementation strategies. DESIGN Cross-sectional, descriptive study. SETTING A Provincial Family Medicine Teaching Unit. PARTICIPANTS Twenty-eight tutors and 36 residents. METHODS For 9 months the participants conducted a training assessment on diverse areas of competence by means of tasks at work. Tutors recorded information on the quality of reflection achieved by residents and the tasks they performed by means of the card model proposed in the STB. Residents filled in an ad hoc survey. A univariate analysis of quantitative data was conducted. RESULTS Thirty-three surveys were received from residents; 21 tutors handed in 67 evaluation reports (average: 3 per tutor). They dealt with all the areas of competence, particularly those of communication, teaching, and ethics. Tasks most used were clinical sessions, critical incidents and video-recording. Both tutors and residents thought that the new method could be useful for reflecting on clinical practice, understanding their own areas of competence better and for strengthening the tutor-trainee relationship, especially if some suggestions to improve its practical use and reduce time and effort involved were taken into account. CONCLUSIONS The new STB in its current version or with some modifications is a useful tool for residents' training assessment and is probably accepted well in our ambit.
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Márquez-de-Aracena R, Montero-de-Espinosa I, Muñoz M, Pereira G. [Subconjunctival application of plasma platelet concentrate in the treatment of ocular burns. Preliminary results]. ARCHIVOS DE LA SOCIEDAD ESPANOLA DE OFTALMOLOGIA 2007; 82:475-81. [PMID: 17717766 DOI: 10.4321/s0365-66912007000800005] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
PURPOSE The efficiency of the subconjunctival application of autologous platelet concentrate in patients with ocular burns was assessed. METHODS This was carried out by analysing the effect of treatment in the eyes of 10 patients suffering from ocular burns as a result of work-related accidents. Two types of treatment were evaluated: the first group only received conventional topical medical treatment; and the second group, in addition, had subconjunctival injection of plasma platelet concentrate. The clinical condition of the patient and the period in which the disease prevented the patient from working were studied; monitoring was carried out until the burns had fully healed. RESULTS Statistically significant differences were found between the group treated with subconjunctival autologous platelet concentrate and the group treated with conventional topical medications, with a shorter period of time in corneal and conjunctival healing, time on sick leave and time needed for full healing. CONCLUSIONS Subconjunctival infiltration of autologous platelet concentrate should be considered as a straightforward, economical and possibly effective form of treatment for traumatic accidents (burns) of the ocular surface.
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Viñals F, Muñoz M, Naveas R, Giuliano A. Transfrontal three-dimensional visualization of midline cerebral structures. ULTRASOUND IN OBSTETRICS & GYNECOLOGY : THE OFFICIAL JOURNAL OF THE INTERNATIONAL SOCIETY OF ULTRASOUND IN OBSTETRICS AND GYNECOLOGY 2007; 30:162-8. [PMID: 17605149 DOI: 10.1002/uog.4073] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
OBJECTIVE To compare sonographic visualization of midline cerebral structures obtained by two-dimensional (2D) imaging and three-dimensional (3D) multiplanar and volume contrast imaging in the coronal plane (VCI-C), with transfrontal 3D acquisition. METHODS Sixty consecutive healthy fetuses in vertex presentation at a mean gestational age of 24 (range, 20-33) weeks underwent 2D and 3D ultrasound examination. Sagittal cerebral planes were reconstructed using 3D acquisition from axial planes by multiplanar analysis and by VCI-C. The reconstructed midline images of both these techniques were compared with the midline structures visualized directly in the A-plane by transfrontal 3D acquisition using a sweep angle of 30 degrees . Measurement of the corpus callosum and cerebellar vermis and visualization of the fourth ventricle and the main vermian fissures were compared. The sharpness of the images was also assessed qualitatively. Mid-sagittal tomographic ultrasound imaging (TUI) was also performed. 3D planes were compared with 2D transfontanelle median planes obtained by transabdominal or, when required, transvaginal sonography. RESULTS The midline plane could be obtained in 88% of multiplanar, 82% of VCI-C and 87% of transfrontal analyses. Measurements of the corpus callosum and cerebellar vermis obtained by 3D median planes were highly correlated. The clearest and sharpest definition of midline structures was obtained with transfrontal acquisition. Primary and secondary fissures of the cerebellar vermis could be detected in 13-26% of multiplanar, 18-35% of VCI-C and 52-79% of transfrontal analyses. 2D visualization was superior or equal to the 3D transfrontal approach in all the parameters compared. CONCLUSION 3D planes obtained from axial acquisitions are simpler and easier to display than are transfrontal ones. However, artifacts and acoustic shadowing are frequent in 3D axial acquisition and spatial resolution is better in the direct visualization transfrontal technique. If the standard examination includes a view of the fetal facial profile, a quick 3D acquisition through the frontal sutures provides direct visualization for assessment of the midline structures. We believe that this volumetric methodology could represent a step towards incorporating a comprehensive fetal neuroscan into routine targeted organ evaluation.
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Estévez LG, Martín M, Alba E, Colomer R, Lobo F, Lluch A, Adrover E, Albanell J, Barnadas A, García-Mata J, Llombart A, Muñoz M, Rodríguez C, Sánchez-Rovira P, Seguí MA, Tusquets I. Current controversies in the management of early breast cancer. Clin Transl Oncol 2007; 9:375-84. [PMID: 17594952 DOI: 10.1007/s12094-007-0070-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Medical professionals in general, and medical oncologists in particular, have highly stressful practices because they are under constant pressure to have the highest-quality, up-to-date evidence available in order to make the right decision for each individual patient. From a practical point of view, being updated on oncological and other medical specialties may seem an insurmountable task because the number of scientific publications has increased dramatically. The use of systematic reviews of randomised controlled trials or the application of results obtained from high-quality randomised controlled trials are some of the most common ways to address this need. Unfortunately, they do not cover all complex clinical situations that the majority of medical oncologists face in their outpatient consultations. In this review, we report the conclusions achieved in a multiexpert meeting where five important controversies in the treatment of breast cancer were analysed. Five highly experienced medical oncologists were required to defend an affirmative answer and another five were required to defend a negative answer for each of the clinical questions. After that, a one-day meeting was organised to debate each clinical question and to reach a consensus. We report here the content of this multi-expert meeting along with the conclusions drawn.
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Rica I, Luzuriaga C, Pérez de Nanclares G, Estalella I, Aragonés A, Barrio R, Bilbao JR, Carlés C, Fernández C, Fernández JM, Fernández-Rebollo E, Gastaldo E, Giralt P, Gomez Vida JM, Gutiérrez A, López Siguero JP, Martínez-Aedo MJ, Muñoz M, Prieto J, Rodrigo J, Vargas F, Castano L. The majority of cases of neonatal diabetes in Spain can be explained by known genetic abnormalities. Diabet Med 2007; 24:707-13. [PMID: 17490422 DOI: 10.1111/j.1464-5491.2007.02140.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
BACKGROUND Neonatal diabetes is a rare disease characterized by hyperglycaemia within the first 3 months of life and requiring insulin treatment; it can either be transient (TNDM) or permanent (PNDM). Alterations at band 6q24 and heterozygous activating mutations in KCNJ11, the gene encoding the pore-forming subunit of the KATP channel, can cause neonatal diabetes. Aims We screened the 6q24 region, KCNJ11, GCK, FOXP3 and IPF1 genes for mutations in families with PNDM or TNDM to establish a phenotype-genotype correlation. METHODS Twenty-two patients with neonatal diabetes were recruited. Inclusion criteria were insulin-treated diabetes diagnosed within the first 3 months and insulin treatment for at least 15 days. Clinical data were recorded in a questionnaire. RESULTS We identified 17 genetic alterations in our patients: six alterations at the 6q24 band associated with TNDM and nine mutations in KCNJ11, five of which were novel. The analysis for a phenotype-genotype correlation showed that patients with 6q24 alterations had a lower birth weight and were diagnosed earlier than patients with KCNJ11 mutations. At follow-up of the TNDM patients with genetic alterations, 43% developed diabetes or impaired glucose tolerance in later life (one with 6q24 duplication and two with N48D and E227K mutations at KCNJ11 gene). Furthermore, half the first-degree relatives who carried a genetic alteration but who had not suffered from neonatal diabetes were diagnosed with diabetes or impaired glucose tolerance before the age of 30 years. CONCLUSIONS KCNJ11 mutations are common in both TNDM and PNDM and are associated with a higher birth weight compared with patients with 6q24 abnormalities. Patients with TNDM should be screened for abnormalities in glucose metabolism in adult life.
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Ciruelos EM, Baselga J, Cortes-Funes H, Lluch A, Mayordomo JI, Ojeda B, Gonzalez E, Muñoz M, Rodriguez C, Cortes J. Multicentric phase II trial of gemcitabine plus capecitabine combination in the treatment of previously anthracycline(An)-treated metastatic breast cancer (MBC): SOLTI 0301 study. J Clin Oncol 2007. [DOI: 10.1200/jco.2007.25.18_suppl.1051] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
1051 Background: Based on clinical activity of capecitabine(C) and gemcitabine (G) on the treatment of MBC, we performed a multicentric phase II trial of the combination to test its efficacy and safety profile. Methods: Sample size of 72 evaluable MBC patients (pts) previously An-treated (neoadjuvant 8%, adjuvant 69%, advanced 30%). Median age: 59 years (35–76 years). Estrogen Receptor positive: 47 (65%). HER2 overexpression: 16 (22%). Prior hormonal/trastuzumab allowed. Soft tissue/ganglionar/pleural/bone disease: 19 (26%); visceral metastasis: 53(74%). Stratification: previous chemotherapy (CT) for advanced disease (none: group 1; any: group 2). Study treatment: oral bid C 1,660 mg/m2/day (d) (d1–14) + iv G 1,000 mg/m2/d (d1&8). Cycles repeated every 3 weeks. RECIST/NCI-CTC 2.0 criteria. Primary end point: Objective Response Rate. Results: Response Rates and Clinical Benefit (CB) are detailed in the table . Median follow-up 7.2 months (m) (0.2–18.4). Median time to progression 11.2 m: group 1, 12 m (95%CI: 6.4–14.5); group 2, 8.9 m (95%CI: 6.9–14).Total and median administered cycles/pt: 479 and 8. Delayed cycles: 103(21.5%): 27% due to hematological toxicity, 11% due to non-hematological toxicity, 62% due to other causes. C dose reduced in 27 cycles (5.6%), 12 of them due to non- hematological toxicity. G dose reduced in 169 cycles (35%), mostly on day 8, and due to hematological toxicity (80% of reduced cycles). Grade 3–4 neutropenia: 32 pts (56%), 1 case of febrile neutropenia. Grade 3–4 non-hematological toxicities: asthenia 8 pts (14%), hand- foot syndrome 6 pts (10.5%), mucositis 3 pts (5%), diarrhea 2 pts (3.5%). Conclusions: Combination of C+G in the treatment of previously anthracycline-treated MBC is safe and active, with a manageable toxicity profile and a good clinical activity. [Table: see text] No significant financial relationships to disclose.
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Antón A, Ruiz A, Seguí MA, Calvo L, Muñoz M, Lao J, Vázquez C, Fernández L. Phase I/II study of a 3 weekly liposome-encapsulated doxorubicin/docetaxel/pegfligrastrim in combination with weekly trastuzumab as primary treatment in HER2 positive (HER2+) early stage breast cancer (ESBC) patients (pt). GEICAM 2003–03 study. J Clin Oncol 2007. [DOI: 10.1200/jco.2007.25.18_suppl.11032] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
11032 Background: The liposome-encapsulated form of doxorubicin (Myocet™) (M) seems to be safe in terms of cardiotoxicity in combination with standard doses of trastuzumab (H) and paclitaxel in BC. This phase I/II study of M, H, docetaxel (T) and pegfligrastrim (N) was designed to evaluate the efficacy and safety of the combination, and define the MTD, in order to examine the selected regimen in a phase II trial. Methods: Cohorts of 3 HER2+ (FISH+) ESBC pt were treated at fixed dose of N (6 mg) and H (2 mg/kg/week). M and T were administered at the following dose levels (DL) (mg/m2): DL0, 60/75; DL-1, 55/75; DL-2, 50/70; DL-3, 50/65; DL-4, 50/60. The MTD was defined as >1/6 pt in any cohort experiencing a predefined dose-limiting toxicity (DLT) in cycle (cy) 1 or 2. LVEF was assessed at baseline and every 2 cy. Results: Nineteen pt have been enrolled in phase I; all are evaluable for efficacy and toxicity. Median age was 45. Twelve pt (63%) were premenopausal. Median tumour size was 45 mm (20–80); 13 (68%) and 6 pt (32%) presented with stage II and IIIA BC respectively. Six (32%) of tumours were G3. DLT were G3 diarrhoea, febrile neutropenia, thrombocytopenia, infection, and G4 asthenia. Three additional pt were treated at DL-4 for confirmation of the recommended dose; none of them had a DLT. One pt (DL-2) experienced asymptomatic, reversible LVEF decrease to 49%. All pt have been assessed for pathological response: 6 (32%) and 5 pt (26%) achieved one pCR and one pPR in breast, defined as Miller and Payne score of 5 and 4, respectively. Conclusions: Concomitant administration of M plus THN is highly active regimen with manageable toxicity in pt with HER2+ ESBC tumours. DL-4 has been selected as the DL for the ongoing phase II study with an enrolment target of 59 pt. No significant financial relationships to disclose.
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