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Morales P, Torres J, Pérez-Enguix D, Solé A, Pastor A, Segura A, Zurbano F. Lymphoproliferative Disease After Lung and Heart-Lung Transplantation: First Description in Spain. Transplant Proc 2005; 37:4059-63. [PMID: 16386626 DOI: 10.1016/j.transproceed.2005.09.143] [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: 10/25/2022]
Abstract
Lymphoproliferative syndromes are the most common tumors in transplant recipients. More than 90% of posttransplantation lymphoproliferative syndromes (PTLS) are considered to be associated with Epstein-Barr virus, and 86% are of the B-cell line. Histopathology ranges from polymorphic-reactive to monomorphic forms. Clonality should be studied using molecular biology techniques. Clinically, a differentiation is usually made between early PTLS (occurring within 1 year after transplantation) and late PTLS, which occur as localized or disseminated nodal lymphomas. In localized forms, immunosuppression should be discontinued or decreased, and the involved area should be subsequently resected or irradiated. In disseminated cases, immunosuppression should be decreased and administration of acyclovir/ganciclovir should be considered. If this is not effective, treatment should be started with anti-CD20 monoclonal antibodies (rituximab). If no response occurs, use of chemotherapy, possibly with interferon, should be considered. Our aim was to report the incidence, clinical signs, and treatment in a series of patients undergoing lung transplantation (LTx).
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Peris E, Requena S, de la Guardia M, Pastor A, Carrasco JM. Organochlorinated pesticides in sediments from the Lake Albufera of Valencia (Spain). CHEMOSPHERE 2005; 60:1542-9. [PMID: 16083760 DOI: 10.1016/j.chemosphere.2005.02.043] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2004] [Revised: 02/13/2005] [Accepted: 02/14/2005] [Indexed: 05/03/2023]
Abstract
Bottom sediment samples from 121 sites of the Lake Albufera of Valencia were analyzed. Dieldrin, endrin, heptachlor and op'-DDT were not detected (<0.01 ng g(-1)) in 88-93% of the sites. Aldrin and HCB concentration ranges were between <0.01 and 0.1 ng g(-1) in 86% and 94% of the sites, respectively. Heptachlor-epoxide and lindane 95% confidence intervals were 0.2-0.5 and 0.06-0.12, respectively. The greatest average concentration corresponds to pp'-DDE, pp'-DDD and pp'-DDT. The sum of six isomers and derivatives of the DDT average concentration reaches 2.1 ng g(-1), as opposed to 2.7 ng g(-1) for the sum of 13 pesticides considered. In the site with a major contamination, 27.0 ng g(-1) of pp'-DDD and 12.8 ng g(-1) of pp'-DDT were accumulated. The DDE:DDT proportion average was 0.37, indicating an aged DDT contamination. Concentrations of pesticides in sediments were compared to three sediment quality guidelines, and indicated that a low biological effects level can be expected in either sediments or aquatic organisms.
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Montilla F, Grirrane A, Herbert M, Galindo A, Pastor A, Álvarez E. Solid-state formation of a coordination polymer starting from a monomeric thiodiacetate manganese complex. Acta Crystallogr A 2005. [DOI: 10.1107/s0108767305085776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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54
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Ienco A, Mealli C, Orlandini A, Galindo A, Grirrane A, del Río D, Pastor A, Fernández Sanz J, Caneschi A. Supramolecular interactions as determining factors of the primary geometry of metallic building blocks. Acta Crystallogr A 2005. [DOI: 10.1107/s0108767305086824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Galindo A, Grirrane A, Álvarez E, Montilla F, Pastor A. Structural features of oxydiacetate and thiodiacetate complexes and crystal structures of magnesium derivatives. Acta Crystallogr A 2005. [DOI: 10.1107/s0108767305086794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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56
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Yusà V, Pastor A, Guardia MDL. Microwave-assisted extraction of OCPs, PCBs and PAHs concentrated by semi-permeable membrane devices (SPMDs). Anal Chim Acta 2005. [DOI: 10.1016/j.aca.2005.03.010] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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57
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Yusà V, Pardo O, Martí P, Pastor A. Application of accelerated solvent extraction followed by gel performance chromatography and high-performance liquid chromatography for the determination of polycyclic aromatic hydrocarbons in mussel tissue. ACTA ACUST UNITED AC 2005; 22:482-9. [PMID: 16019821 DOI: 10.1080/02652030500077452] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Accelerated solvent extraction (ASE) has been evaluated as a fast alternative to methanolic saponification for the extraction of 12 polycyclic aromatic hydrocarbons (PAHs) from mussel tissue. Several solvent systems and different operating conditions were investigated. The mixture dichloromethane-acetone (1:1, v/v) gave the best recoveries at 125 degrees C and 1500 psi, in a total time of 10 min. No yield difference was found between freeze-drying (Fd) or drying the wet mussel with diatomaceous earth (Ded) prior to extraction. The ASE method was validated using the standard reference material SRM 2977, a freeze-dried mussel tissue with naturally present organic contaminants. The performance characteristics of the ASE method (trueness: 70-110%; precision: 4-14% and limit of quantification (LOQ): 0.1-0.25 microg/kg) meet the criteria established by the European Union for quantitative methods of analysis for official control of organic residues and contaminants. ASE provides a 24 times faster extraction than MSE and reduces 12 times the volume of solvent required.
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Blanco JF, De Pedro JA, Hernández P, Santamarta D, Pastor A. Zone III sacral fractures--two case reports. Injury 2004; 35:1311-3. [PMID: 15561125 DOI: 10.1016/j.injury.2003.12.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 12/04/2003] [Indexed: 02/02/2023]
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59
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Pastor A, Martin-Penato A, Nunez A, Garcia JC, Alonso C, Cosio FG. A24-4 Characterization of the excitable gap in typical atrial flutter. Europace 2003. [DOI: 10.1016/eupace/4.supplement_2.b36-c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022] Open
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60
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Melo Coelho N, Parrilla C, Cervera M, Pastor A, de la Guardia M. High performance liquid chromatography—atomic fluorescence spectrometric determination of arsenic species in beer samples. Anal Chim Acta 2003. [DOI: 10.1016/s0003-2670(03)00203-4] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Morales F, Maillo A, Hernández J, Pastor A, Caballero M, Gómez Moreta J, Díaz P, Santamarta D. [Evaluation of microsurgical treatment in a series of 121 intracranial aneurysms]. Neurocirugia (Astur) 2003; 14:5-15. [PMID: 12655379 DOI: 10.1016/s1130-1473(03)70556-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
OBJECTIVE The results obtained with therapy of intracranial aneurysms, in terms of morbidity and mortality, are very important when the patient has to choose between microsurgical techniques or endovascular management. The aim of this paper is to review the information regarding current microsurgical treatment of intracranial aneurysms, and presenting our experience over the last five years. MATERIAL AND METHODS We studied 101 consecutive patients with 121 intracranial aneurysms admitted between 1996 and 2000 with the initial diagnosis of subarachnoid hemorrhage. We paid special attention to the day of admission from the onset of the symptomatic hemorrhage to the grade of Hunt&Hess scale and the possibility of early or delayed microsurgical treatment. The diagnosis was based on four vessels cerebral angiography and in a few cases with CT-angiography. All patients were treated by microsurgical technique and such treatment was completed by nimodipine, intensive care unit management and in some cases of postoperative suspected vasospasm, induced arterial hypertension was applied. Post surgical angiography was carried out in all patients to confirm the clipping of the cerebral aneurysm. The 12 months assessment was based on the Glasgow Outcome Scale (GOS). RESULTS The 92.1% of the patients were admitted with a grade equal or below III in the Hunt&Hess scale. A 80% were operated within the 72 hours of admission and in the remaining cases, the surgical treatment was delayed due to a grade IV or V or to a medical contraindication. Four patients died (3.9%). At 12 months follow up, 88.9% presented a score I or II in the GOS. CONCLUSION According to our results, there are a substantial improvements in the microsurgical treatment of cerebral aneurysms, specially in patients admitted early after the onset of the symptoms of their hemorrhage, who have a grade I to III in the Hunt&Hess scale and showed a good level of consciousness. We think that the improvement of our results are due to: l. the high percentage of patients admitted with grades I to III. 2. the high percentage of patients operated within the first 72 hours from the onset of their symptomatic hemorrhage. 3. surgery was always carried out by the same two experienced vascular neurosurgeons. 4. intraoperative measures taken to prevent the rupture of the aneurysm. 5. early administration of nimodipine, ICU management, doppler studies and in seldom cases, induced hypertension therapy to treat the vasospasm and postoperative hypotension.
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Segond von Banchet G, Pastor A, Biskup C, Schlegel C, Benndorf K, Schaible HG. Localization of functional calcitonin gene-related peptide binding sites in a subpopulation of cultured dorsal root ganglion neurons. Neuroscience 2002; 110:131-45. [PMID: 11882378 DOI: 10.1016/s0306-4522(01)00547-4] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
In this study we investigated whether cultured dorsal root ganglion (DRG) neurons from the adult rat express binding sites for calcitonin gene-related peptide (CGRP). These were identified on fixed cells by using CGRP labeled at the N-terminal site with 1.4-nm gold particles. After 1 day in culture, about 20% of small to medium-sized DRG neurons showed CGRP-gold binding. Binding of CGRP-gold was dose-dependently reduced by coadministration of CGRP. The calcium imaging technique in living cells revealed that the bath administration of CGRP evoked an increase of the intracellular calcium in up to 30% of the DRG neurons tested. Both depletion of intracellular calcium stores by thapsigargin or using a calcium-free medium blocked the CGRP-mediated increase of cytosolic calcium in most neurons. Thus intracellular and extracellular sources of calcium are relevant for the CGRP response. Using the whole-cell patch-clamp technique, about 30% of the neurons were found to exhibit an inward current and a depolarization upon administration of CGRP close to the neurons. Immunocytochemical double-labeling techniques showed that most of the CGRP-gold binding sites were expressed in unmyelinated (neurofilament 200-negative) DRG neurons. Most of the neurons with CGRP-gold binding sites also expressed the tyrosine kinase A receptor, and all of them showed CGRP-like immunoreactivity. This study shows, therefore, that a subpopulation of unmyelinated, peptidergic primary afferent neurons express CGRP binding sites that can be activated by CGRP in an excitatory direction. The binding sites may serve as autoreceptors because all of these neurons also synthesize CGRP. The activation of CGRP binding sites may sensitize primary afferent neurons and influence the release of mediators.
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MESH Headings
- Animals
- Autoreceptors/drug effects
- Autoreceptors/metabolism
- Binding Sites/drug effects
- Binding Sites/physiology
- Calcitonin Gene-Related Peptide/metabolism
- Calcitonin Gene-Related Peptide/pharmacology
- Calcium/metabolism
- Calcium Signaling/drug effects
- Calcium Signaling/physiology
- Cells, Cultured
- Cytosol/drug effects
- Cytosol/metabolism
- Ganglia, Spinal/cytology
- Ganglia, Spinal/drug effects
- Ganglia, Spinal/metabolism
- Gold Compounds
- Immunohistochemistry
- Male
- Membrane Potentials/drug effects
- Membrane Potentials/physiology
- Neurofilament Proteins/metabolism
- Neurons, Afferent/cytology
- Neurons, Afferent/drug effects
- Neurons, Afferent/metabolism
- Rats
- Rats, Wistar
- Receptor, trkA/metabolism
- Receptors, Calcitonin Gene-Related Peptide/drug effects
- Receptors, Calcitonin Gene-Related Peptide/metabolism
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Pastor A, Núñez A, Cantale C, Cosío FG. Asymptomatic brugada syndrome case unmasked during dimenhydrinate infusion. J Cardiovasc Electrophysiol 2001; 12:1192-4. [PMID: 11699532 DOI: 10.1046/j.1540-8167.2001.01192.x] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Typical ECG of that described for Brugada syndrome was elicited in a patient diagnosed with labyrinthopathy during infusion of dimenhydrinate, a first-generation antihistamine usually used to treat motion sickness. Although the patient had no history of syncope or palpitations, and there was no family history of cardiac disease or sudden death, the ECG abnormality was reproduced later with intravenous flecainide, and an asymptomatic Brugada syndrome was diagnosed.
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Hostalot C, Mozas M, Bilbao G, Pomposo I, Aurrekoetxea J, Urigüen M, Canales LM, Pastor A, Zorrilla J, Garibi J. [Lumbar root compression secondary to juxtafacet cysts: review of 10 cases]. Neurocirugia (Astur) 2001; 12:308-15. [PMID: 11706675 DOI: 10.1016/s1130-1473(01)70685-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
OBJECT We report a series of 10 patients with 11 juxtafacet cysts of the lumbar spine treated in our center from 1994 to 2000. METHODS The clinical histories, radiographic images, surgical protocols and pathological records of the 10 patients diagnosed of lumbar juxtafacet cyst have been analyzed. RESULTS Six patients were women and four were men. The average age of presentation was 54 years. The most frequent clinical presentation was radicular pain, and motor or sensitive deficits were not very common. Computed tomography and magnetic resonance are essential in establishing the diagnosis. The cysts were located at L4-L5 in eight patients, at L2-L3 in one patient, and at L3-L4 in other patient. Eight patients were treated by means of decompressive laminectomy and excision of the cyst, and the remaining two underwent conservative treatment. Degenerative phenomena adjacent to the juxtafacet cysts are easy to evidence. All the patients were improved of their radicular pain. CONCLUSIONS Analysing our series, we conclude that the juxtafacet cysts appear more frequently at L4-L5 level in people of advanced age, and produce commonly low back pain and radiculopathy. Although they can be treated initially in a conservative way, in the presence of a progressive sciatic syndrome, surgical management is preferable.
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Birnbaum K, Pastor A, Prescher A, Heller KD. Complications of Chiari and Salter osteotomies: a cadaver study. Surg Radiol Anat 2001; 22:225-33. [PMID: 11236314 DOI: 10.1007/s00276-000-0225-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Previous investigations of the Chiari and Salter osteotomies showed that intraoperative vessel and nerve injuries are described repeatedly in the case of both pelvic osteotomies. The aim of our investigations was the exposure of each operation step in anatomic specimens to show the anatomic landmarks and potential risks. We performed nine Chiari osteotomies and five Salter osteotomies on formalin-fixed cadavers. The operation steps were made consecutively to assess the risks to the vessels and nerves as well as the determination of anatomically important reference points. In both procedures an injury of the lateral femoral cutaneous nerve at the anterior access route is feasible. By ensuring that the skin including the lateral femoral cutaneous nerve is pulled medially, injury can be avoided. Additionally, too long retraction of the tensor fasciae latae muscle injures its nutrient vessels. An inadequate subperiosteal approach during the pull on the Hohmann's retractor leads to crushing and irritation of the sciatic nerve. Moreover, there is a risk that the superior gluteal nerve as well as the superior gluteal artery may be injured. An inadequate subperiosteal application of the medial Hohmann's retractor can endanger the obturator nerve. In the Chiari osteotomy there is a risk of injury to the articular branch of the superior gluteal nerve, which supplies parts of the ventral hip joint capsule. By inserting the K-wire too far medially the internal oblique muscle is endangered. Too prolonged retraction of the iliopsoas muscle in a Salter osteotomy can lead to compression of the femoral nerve. The form of the osteotomy has an influence on the stability of the hip joint in the course of exposure of the hip joint. On account of the narrow spatial connection between the anatomic pathways and the osteotomy area, strict subperiosteal dissection and careful use of the retractor are essential to avoid nerve and vessel injuries.
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Huidobro A, Pastor A, López-Caballero ME, Tejada M. Washing effect on the quality index method (QIM) developed for raw gilthead seabream ( Sparus aurata ). Eur Food Res Technol 2001. [DOI: 10.1007/s002170000243] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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67
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Katritzky AR, Pastor A, Voronkov M, Tymoshenko D. Polymer-supported triazole and benzotriazole leaving groups. Three new examples and a comparison of their efficiency. JOURNAL OF COMBINATORIAL CHEMISTRY 2001; 3:167-70. [PMID: 11300856 DOI: 10.1021/cc0000693] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Three polymer-supported heterocyclic (triazole 4 and benzotriazoles 2, 8) leaving groups are described. The loading of 8 was clearly superior to those of 2 and 4. The efficiency of 8 was higher than those of previously reported benzotriazole resins 9a,b in the C-acylation of ketones.
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Tornero C, Pastor A, Santamaría A, Rull S. [Short term benefit of genotype resistance testing]. Med Clin (Barc) 2001; 116:199. [PMID: 11222180 DOI: 10.1016/s0025-7753(01)71769-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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69
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Huidobro A, Pastor A, Tejada M. Adenosine Triphosphate and Derivatives as Freshness Indicators of Gilthead Sea Bream ( Sparus aurata). FOOD SCI TECHNOL INT 2001. [DOI: 10.1177/108201301772662653] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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70
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Huidobro, A, Pastor A, Tejada M. Adenosine Triphosphate and Derivatives as Freshness Indicators of Gilthead Sea Bream (Sparus aurata). FOOD SCI TECHNOL INT 2001. [DOI: 10.1106/b69q-lxfq-hpqp-9vx7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Intensive production of farmed gilthead sea bream ( Sparus aurata) and the different slaughtering methods and postmortem treatments are prompting a need for early indicators to determine fish quality during chilled storage. Adenosine-5 -triphosphate (ATP) and derivatives and their relationship as Kvalue were measured in chilled whole and gutted gilthead sea bream killed by immersion in ice water, asphyxia, anesthesia followed by a blow to the head, or a blow to the head. ATP derivatives taken independently were not found to be useful indicators for this species. The evolution of Kvalue was linear but attained lower final values than in other species. No significant differences were found in relation to the method of slaughter or postmortem treatment.
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71
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Mateo J, Jiménez M, Pastor A, Huerta T. Yeast starter cultures affecting wine fermentation and volatiles. Food Res Int 2001. [DOI: 10.1016/s0963-9969(00)00168-x] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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72
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Gonçalves J, Paniagua J, Framiñán A, Maillo A, Díaz P, Morales F, Hernández J, Gómez-Moreta J, Onzain I, Santamarta D, Pastor A, Caballero M. 3. Evaluación radiológica tras laminoplastia cervical. Neurocirugia (Astur) 2001. [DOI: 10.1016/s1130-1473(01)70847-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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73
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Morales Ramos F, Muñoz Herrero A, Caballero M, Pastor A, Hernández J, Santamarta D, Maíllo A, Salamanca H. 3. Meningiomas de ángulo ponto-cerebeloso (A P C). Neurocirugia (Astur) 2001. [DOI: 10.1016/s1130-1473(01)70778-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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74
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Santamarta D, Caballero M, Pastor A, Hernández J, Díaz Cascajo P, Morales F. 4. Hemorragia en el IV ventrículo secundaria a hemangioblastoma de la unión bulbomedular. Neurocirugia (Astur) 2001. [DOI: 10.1016/s1130-1473(01)70830-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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75
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Santamarta D, Caballero M, Gómez-Moreta J, Pastor A, Morales F, de Campos J, Ladera V, Perea M. 1. Biopsia endoscópica de tumores pineales. Neurocirugia (Astur) 2001. [DOI: 10.1016/s1130-1473(01)70950-5] [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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