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Díaz E, Köhidai L, Ríos A, Vanegas O, Silva A, Szabó R, Mező G, Hudecz F, Ponte-Sucre A. Leishmania braziliensis: cytotoxic, cytostatic and chemotactic effects of poly-lysine-methotrexate-conjugates. Exp Parasitol 2013; 135:134-41. [PMID: 23816643 DOI: 10.1016/j.exppara.2013.06.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2012] [Revised: 06/04/2013] [Accepted: 06/12/2013] [Indexed: 10/26/2022]
Abstract
Chemotactic responses play a significant role during Leishmania differentiation, as well as in the course of parasite-host-cell interaction, a process that precedes a successful infection. The present study uses the modified "two-chamber capillary assay" to quantitatively evaluate the chemotactic properties and the toxic activities of methotrexate containing branched chain polymeric polypeptide conjugates in Leishmania. Our results demonstrate that this methodology quantitatively determines the taxis of Leishmania towards/against gradients of compounds. They also demonstrate that chemotaxis produced by the polypeptide-methotrexate conjugates depends on specific chemical characteristics. For example, the N-terminal amino acid (Ser or Glu) location at the branch significantly influences the elicited chemotaxis. Furthermore, the use of different attachment sites in the methotrexate conjugates (α- or γ-carboxylic groups) affect their chemotactic activity. Specific cytotoxic activities and cytostatic effects of the conjugates on parasites and on murine and human cells of the macrophage/monocyte system respectively, suggest that these ligands may be used as a group of anti-Leishmania substances acting selectively on Leishmania and different hosts.
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Ramis G, Martínez-Alarcon L, Quereda JJ, Mrowiec A, Funes C, Ríos A, Ramírez P, Muñoz A, Majado MJ. Non-ABO blood group systems phenotyping in non-human primates for blood banking laboratory and xenotransplantation. Lab Anim 2013; 47:100-5. [PMID: 23563364 DOI: 10.1177/0023677213475439] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Some biomedical research procedures, such as organ xenotransplantation, usually require intensive hemotherapy. Knowledge of the whole phenotype of blood donor and graft could be useful in the field of xenotransplantation. Human and simian-type categories of blood groups have been established and they can be tested by standard methods used for human blood grouping. The aim of this work was to study the incidence of non-ABO blood group systems in different species of non-human primates, which are employed in biomedical research. The phenotype of Rh, Lewis, Kidd, Kell, MNSs, Lutheran, P and Duffy antigens was investigated in olive baboon (n = 48), chacma baboon (n = 9), Guinea baboon (n = 14), Rhesus macaque (n = 38) and squirrel monkey (n = 30) by using commercial microtyping cards. Kell, Lutheran, Kidd and Duffy antigens have been detected in all species, Rh in squirrel monkey, MNSs in rhesus macaque and squirrel monkey, and Lewis in baboon and rhesus macaque. There were differences in frequency and haemagglutination scores between species regardless of their gender and age. The main differences were found in squirrel monkey when compared with baboons and macaques. This typing system provides a tool to assess the presence of antigens in animals used for experimental procedures, such as xenotransplantation and xenotransfusion.
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Mendonça L, Martínez-Alarcón L, Ríos A, Ramis G, Quereda J, Abellaneda J, Saez-Acosta A, Herrero J, Muñoz A, Ramírez P, Parrilla P. Are Veterinary Students in Favour of Xenotransplantation? Comparative Opinion Study in a Brazilian and a Spanish University. Transplant Proc 2013; 45:1046-9. [DOI: 10.1016/j.transproceed.2013.02.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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79
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Ramis G, Martínez-Alarcón L, Majado MJ, Quereda JJ, Mendonça L, Herrero-Medrano JM, Abellaneda JM, Ríos A, López-Navas A, Ramírez P, Muñoz A. Assessment of in vitro heparin complement regulation capacity during real-time cell analyzer antibody-mediated cytolysis assay: compatibility studies for pig-to-baboon xenotransplantation. Transplant Proc 2013; 44:1584-8. [PMID: 22841220 DOI: 10.1016/j.transproceed.2012.05.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
OBJECTIVE To assess the effect of sodium heparin concentrations on antibody- and complement-mediated cytolysis by means of a real-time cell analyzer system (RTCA) investigating the complement regulation ability of heparin to reduce or prevent hyperacute in an in vitro model of pig-to-baboon xenotransplantation. MATERIALS AND METHODS Fibroblasts isolated from the skin of two transgenic pigs were cultured in microelectronic 96-well plates for 9 hours. Then, we added 20 μL of normal sera from two healthy adult olive baboons (Papio anubis) or two volunteer healthy humans. Simultaneous cultures had added heparin at 3.5, 5, 7.5, 15, and 30 IU. Moreover, rabbit complement was added for the exogenous complement group (ExC) versus the other group only with the complement present in the sera as an endogenous complement group (EnC). Cellular cultures were monitored over 150 hours after challenge. With cellular index (CI) data recorded by the xCELLigence software system, we calculate area under the curve versus concentration (AUC) and minimum CI (CImin) versus concentration. RESULTS All cultures showed decreased CI after challenge with human or baboon sera. There was a high correlation for AUC (r(2) > 0.90) and CImin versus concentration (r(2) > 0.970) during the first 40 hours postchallenge among the EnC group, regardless of human or baboon sera. However, there was no correlation for AUC and CImin for the ExC group. There was a reduction of CImin related to increased heparin concentrations. CONCLUSIONS The addition of heparin did not reduce antibody- and complement-mediated cytolysis assessed in vitro by RTCA in pig-to-baboon compatibility assays.
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López-Navas A, Ríos A, Moya-Faz FJ, Febrero B, Jiménez-Morales MI, Orteso FJ, Ros-Martínez A, Martínez-Alarcón L, Pons JA, Miras M, Ramírez P, Parrilla P. Emotional-type psychopathologic symptoms among patients with terminal chronic alcohol-induced liver cirrhosis. Transplant Proc 2013; 44:1510-2. [PMID: 22841199 DOI: 10.1016/j.transproceed.2012.05.021] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
INTRODUCTION Patients with toxic substance abuse syndrome, such as alcohol abuse, have elevated psychopathologic morbidity and mortality such as mood disorders. OBJECTIVE To evaluate the emotional-type psychopathologic symptoms in patients with alcohol-induced hepatic cirrhosis on the liver transplant waiting list. MATERIALS AND METHODS Patients with alcoholic liver cirrhosis who were candidates for liver transplant (n = 41) completed the SA-45 questionnaire (González y Cuevas; 88), which assesses nine dimensions: somatizations, obsessive-compulsivity, interpersonal sensitivity, depression, anxiety, hostility, phobic anxiety, paranoid ideation, and psychoticism. A control group consisted of patients with chronic nonalcoholic terminal hepatopathies (n = 22). RESULTS Seventy-six percent of patients had some kind of psychopathologic symptom compared to 68% of the patients in the control group with other nonalcoholic etiologies (P > .05). The emotional-type clinical symptoms were: (1) somatizations: 37% of patients with alcoholic cirrhosis had this type of clinical symptoms compared to 32% of the control group (P > .05); (2) obsessive-compulsivity: 56% versus 46%, respectively (P > .05); (3) interpersonal sensitivity: 19% versus 9%, respectively (P > .05); (4) depression: 54% versus 27%, respectively (P = .045); (5) anxiety: 59% versus 46%, respectively (P > .05); (6) hostility: 29% versus 5%, respectively (P = .021); (7) phobic anxiety: 10% versus 14%, respectively (P > .05); (8) paranoid Ideation: 7% versus 5%, respectively (P > .05); (9) psychoticism: 5% versus 4%, respectively (P > .05). CONCLUSIONS The patients with alcoholic liver cirrhosis on the liver transplant waiting list had elevated psychopathologic symptoms. Depressive- and hostile-type emotional alterations were most frequent in this type of patients.
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Abellaneda JM, Ramis G, Martínez-Alarcón L, Majado MJ, Quereda JJ, Herrero-Medrano JM, Mendonça L, García-Nicolás O, Reus M, Insausti C, Ríos A, López-Navas A, González MR, Pallarés FJ, Munoz A, Ramírez P, Parrilla P. Generation of human-to-pig chimerism to induce tolerance through transcutaneous in utero injection of cord blood-derived mononuclear cells or human bone marrow mesenchymals cells in a preclinical program of liver xenotransplantation: preliminary results. Transplant Proc 2013; 44:1574-8. [PMID: 22841218 DOI: 10.1016/j.transproceed.2012.05.016] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
OBJECTIVE Using a percutaneous ecoguided injection system to obtain chimeric piglets through a less invasive and traumatic technique than previously reported. MATERIALS AND METHODS The two types of human cells included umbilical cord blood mononuclear elements and mesenchymal stem cells cultured from bone marrow. Four sows at gestational day 50 were anesthetized. A needle was inserted through the skin and uterine wall to reach the peritoneal cavity of the fetuses under continuous ultrasound guidance. Fourteen piglets were injected with various cell concentrations. RESULTS All sows carried pregnancies to term yielding 69 piglets, among which 67 were alive and two mummified. Two piglets died during the first 48 hours of life. Chimerism was detected using flow cytometry and by quantitative polymerase chain reaction (q-PCR) to detect Alu gene in blood or tissues samples. The analysis detected blood chimerism in 13 piglets (21%) by flow cytometry and the presence of the human Alu gene in 33 (51%) by q-PCR. The results suggest cell trafficking between littermates after in utero injection. CONCLUSIONS Transcutaneous echo-guided injection succeeded to produce chimeric piglets without disadvantages to the sow or the fetuses and avoiding abortions or fetal death.
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López M, Arce L, Garrido J, Ríos A, Valcárcel M. Selective extraction of astaxanthin from crustaceans by use of supercritical carbon dioxide. Talanta 2012; 64:726-31. [PMID: 18969665 DOI: 10.1016/j.talanta.2004.03.048] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2003] [Revised: 03/18/2004] [Accepted: 03/26/2004] [Indexed: 11/25/2022]
Abstract
An on-line supercritical fluid extraction (SFE) system coupled to a continuous flow manifold including a UV detector was used as a screening system to extract astaxanthin from crayfish, which was found to be the major carotenoid present in the samples. This compound constitutes the principal additive used to dye salmon flesh. The flow manifold was used to confirm the presence of astaxanthin in the crustacean samples. Also, an HPLC/UV-vis method was used to ascertain that this compound was the major carotenoid extracted under the optimum SFE conditions employed. The influence of SFE operating variables such as pressure, temperature, equilibration time, extraction time, trap temperature, and volume of CO(2) modifier was examined in order to maximize the efficiency of analyte extraction. The use of supercritical CO(2) enables the expeditious, selective, quantitative extraction of astaxanthin from crustaceans.
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González M, Cascales P, Abellán I, Pons J, Miras M, Capel A, Sánchez Bueno F, Robles R, Febrero B, Ríos A, Ramírez P, Parrilla P. The Evolution of Therapeutic Strategies for Biliary Tract Complications After Liver Transplantation Over a Period of 20 Years. Transplant Proc 2012; 44:2093-5. [DOI: 10.1016/j.transproceed.2012.07.073] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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84
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Ríos A, López-Navas A, Ayala-García MA, Sebastián M, Febrero B, Ramírez EJ, Muñoz G, Palacios G, Rodríguez JS, Martínez MA, Nieto A, Martínez-Alarcón L, Ramis G, Ramírez P, Parrilla P. Multivariate analysis to determine the factors affecting the attitudes toward organ donation of healthcare assistants in Spanish and Mexican healthcare centers. Transplant Proc 2012; 44:1479-81. [PMID: 22841189 DOI: 10.1016/j.transproceed.2012.05.028] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
BACKGROUND Healthcare assistants are an important group of workers who can influence public opinion. Their attitudes toward organ donation may influence public awareness of healthcare matters; negative attitudes toward donation and transplantation could have a negative impact on public attitudes. Our objective was analyze the attitudes of healthcare assistants, in Spanish and Mexican healthcare centers toward organ donation and determine factors affecting them using a multivariate analysis. MATERIAL AND METHODS As part of the "International Collaborative Donor Project," 32 primary care centers and 4 hospitals were selected in Spain and 5 hospitals in Mexico. A randomized sample of healthcare assistants was stratified according to healthcare services. Attitudes were evaluated using a validated questionnaire of the psychosocial aspects of donation, which was self-completed anonymously by the respondent. Statistical analysis used the chi-square test, Student t test, and logistic regression analysis. RESULTS Of 532 respondents, 66% in favored donation and 34% were against it or undecided. Upon multivariate analysis, the following variables had the most weight: 1) country of origin (Mexicans were more in favor than Spanish; odds ratio [OR]) = 1.964; P = .014); 2) a partner with a favorable attitude (OR = 2.597; P = .013); 3) not being concerned about possible bodily mutilation after donation (OR = 2.631; P = .006); 4) preference for options apart from burial for handling the body after death (OR = 4.694; P < .001) and 5) accepting an autopsy if one was needed (OR = 3.584; P < .001). CONCLUSIONS The attitudes of healthcare assistants toward organ donation varied considerably according to the respondent's country of origin. The psycho-social profile of a person with a positive attitude to donation was similar to that described within the general public.
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Ríos A, Febrero B, López-Navas A, Martínez-Alarcón L, Sánchez J, Guzmán D, Ramírez P, Parrilla P. Evaluation of Attitude toward Living Organ Donation among Adolescents in Southeast Spain. Transplant Proc 2012; 44:1489-92. [DOI: 10.1016/j.transproceed.2012.05.067] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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López-Navas A, Ríos A, Riquelme A, Martínez-Alarcón L, Pons JA, Miras M, Sanmartín A, Febrero B, Ramírez P, Parrilla P. Psychological care: social and family support for patients awaiting a liver transplant. Transplant Proc 2011; 43:701-4. [PMID: 21486578 DOI: 10.1016/j.transproceed.2011.01.095] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
INTRODUCTION In patients awaiting a transplant, the help received from friends and/or family members is considered to be an important factor in the transplantation process. Our objective was to determine the level of social/family support for patients on the liver transplant waiting list and to determine the relationship between clinical psychopathology and the level of social/family support. MATERIALS AND METHODS The study population consisted of 70 patients on the liver transplant waiting list. We used the following instruments: (1) Medical Outcomes Study-Social Support Survey (MOS) Questionnaire. For size of the social network, four support dimensions and a global support index for emotional support, material/instrumental support, leisure/free time activities, and love/care; (2) Family Apgar Questionnaire for personal perception of family function; (3) SA-45 questionnaire of psychopathologic symptoms for somatizations, obsessive-compulsivity, interpersonal sensitivity, depression, anxiety, hostility, phobic anxiety, paranoid ideation, and psychoticism. RESULTS The MOS showed that the mean size of the social network of these patients was 12 people. In these patients, social/family support was nonfunctional in 20% of the cases. By dimensions, the patients had the following percentage of nonfunctional support: 24% in emotional support; 10% material/instrumental support; 23% social relations of leisure/free-time activities; and 11% compassionate love/care support. The patients with nonfunctional support had the following associated psychopathologic symptoms (SA-45): depression (79% vs 39%; P = .008), anxiety (86% vs 46%; P = .008), hostility (43% vs 12%; P = .009), and psychoticism (14% vs 2%; P = .039) compared to functional patients. The Family Apgar showed that 27% of patients perceived a family dysfunction. These patients had greater interpersonal sensitivity-type emotional symptoms (32% vs 8%; P = .012), depression (79% vs 35%; P = .001), anxiety (79% vs 45%; P = .011), and hostility (42% vs 10%; P = .002) compared to normally functioning patients. CONCLUSIONS Nearly a quarter of patients on the liver transplant waiting list have social/family support that is nonfunctional, which leads to greater emotional psychopathologic symptoms that would need to be treated.
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Ríos A, López-Navas A, Ayala-Garcia MA, Sebastián MJ, Martínez-Alarcón L, Ramírez EJ, Muñoz G, Camacho A, Rodríguez JS, Martínez MA, Nieto A, Febrero B, Ramis G, Ramírez P, Parrilla P. Donation and transplantation among personnel in the hospital emergency department: a multicenter study conducted in Spain and Mexico. Transplant Proc 2011; 43:48-51. [PMID: 21335151 DOI: 10.1016/j.transproceed.2010.11.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
INTRODUCTION The promotion of different means of procuring both deceased and living organs (kidney and liver) is a necessity given the current organ shortage. Emergency department personnel are involved in the donation and transplantation process. Our objective was to analyze the attitude to the different kinds of organ donation of emergency services personnel in hospital centers in Spain and Mexico. MATERIALS AND METHODS A randomized sample was obtained from the "International Collaborative Donor Project" and was stratified according to emergency services and job category in nine hospitals, in Spain and in Mexico (n = 22). Attitude was evaluated using a validated survey. RESULTS Of the respondents, 76% were in favor of deceased organ donation and 24% were not in favor. This attitude toward deceased donation was associated with the respondent's country of origin, age, and job category; Mexicans (P = .036), younger respondents (P = .023), and physicians were most in favor (P < .001). With regard to attitude toward living kidney donation, 89% were in favor of related donation. Regarding living liver donation, 85% were in favor of related donation. In attitude toward living kidney and liver donation, relevant factors were related to donation and transplantation. CONCLUSIONS Professionals in emergency departments in hospital centers in Spain and Mexico had a favorable attitude toward the different kinds of donation, although it was less favorable than the attitude reported in other professional hospital groups.
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Ríos A, Martínez-Alarcón L, López-Navas A, Sánchez J, Guzmán D, Febrero B, Ramis G, Ramírez P, Parrilla P. Knowledge of the Concept of Brain Death in the British and Irish Population Resident in Southeast Spain. Transplant Proc 2011; 43:692-4. [DOI: 10.1016/j.transproceed.2011.02.037] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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89
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Quereda JJ, Martínez-Alarcón L, Mendoça L, Majado MJ, Herrero-Medrano JM, Pallarés FJ, Ríos A, Ramírez P, Muñoz A, Ramis G. Validation of xCELLigence real-time cell analyzer to assess compatibility in xenotransplantation with pig-to-baboon model. Transplant Proc 2011; 42:3239-43. [PMID: 20970663 DOI: 10.1016/j.transproceed.2010.05.059] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
OBJECTIVE To validate the use of a microelectronic real-time cell analyzer system (RTCA) we developed a complement-mediated antibody cytotoxicity assay to investigate the compatibility of a graft and a recipient in pig-to-baboon xenotransplantation. MATERIALS AND METHODS Fibroblasts isolated from the skin of five hCD55, hCD59, and hCD46 transgenic pigs (TP) were cultured in 96 microelectronic well plates for 17 hours. Then, we added to each microwell 20 μL of normal sera from nine healthy adult olive baboons (Papio anubis)-three males and six females. The evolution of the cell culture was assessed every 3 minutes during the pretreatment period, at 11 hours postaddition, and every 30 minutes from 12 to 96 hours. Simultaneously, we performed a 3-(4,5-dimethylthiazole-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. Fibroblasts from wild-type (WT) pigs were used as positive controls and microwells without serum addition from each TP as negative controls. The RTCA results were expressed as a normalized cellular index (NCI). RESULTS Differences were observed between the five TP fibroblasts and the WT fibroblasts, with greater cytotoxicity on WT cells. Among TP, a higher cytolytic level was observed in males than females. The MTT results correlated with NCI at different times, with the minimum NCI and with the time to for NCI recovery before serum addition. The correlation was lower than that previously reported in environmental toxicity assays. CONCLUSIONS RTCA allows a long-term assessment of the immunocytotoxic effect of baboon sera on pig cells, providing a suitable tool to perform compatibility tests for xenotransplantation.
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Martínez-Alarcón L, Ríos A, Sánchez J, Ramis G, López-Navas A, Ramírez P, Parrilla P. Evaluation of the law of presumed consent after brain death by Spanish journalism students. Transplant Proc 2011; 42:3109-12. [PMID: 20970621 DOI: 10.1016/j.transproceed.2010.05.073] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
INTRODUCTION Information provided by journalists is crucial to create a climate of social opinion. This is important in organ donation and transplantation (ODT), wherein the participation of the general public is essential to obtain organs. OBJECTIVE The objective of this study was to determine the knowledge of students taking a degree in journalism about the concept of brain death and the law of presumed consent. MATERIALS AND METHODS The study involved 129 journalism degree students in the 2005-2006 academic year from a university in the south-east of Spain. Attitudes on the psychosocial aspects of ODT were evaluated using a validated questionnaire. The self-administered survey was completed anonymously in classes and compulsory practical sessions. RESULTS The questionnaire completion rate was 98% (n=126). Of the students surveyed, 43% (n=54) understood the concept of brain death, 44% (n=56) stated that they had doubts, whereas 13% (n=16) believed that a person with brain death can recover and lead a normal life. Their knowledge was more accurate in the final than in the first year (54% vs 47%; P=.016). Most students 66% (n=83) believed that it would be interesting to receive an informative talk about ODT. Concerning legislation, 75% of students were against the law of presumed consent, whereas 25% were in favor. CONCLUSION More than 50% of journalism students do not understand the concept of brain death. Furthermore, up to 75% do not accept the law of presumed consent that donation must be made.
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López-Navas A, Ríos A, Riquelme A, Martínez-Alarcón L, Pons J, Miras M, Sanmartín A, Febrero B, Ramis G, Ramírez P, Parrilla P. Psychological Characteristics of Patients on the Liver Transplantation Waiting List With Depressive Symptoms. Transplant Proc 2011; 43:158-60. [DOI: 10.1016/j.transproceed.2010.11.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Ríos A, López-Navas A, Ayala-García M, Sebastián M, Abdo-Cuza A, Martínez-Alarcón L, González B, Ramírez E, Muñoz G, Camacho A, Suárez-López J, Castellanos R, Rodríguez J, Martínez M, Nieto A, Ramis G, Ramírez P, Parrilla P. Attitude Toward Living Liver Donation in Transplant Hospitals in Spain, Mexico and Cuba. Transplant Proc 2010; 42:3102-5. [DOI: 10.1016/j.transproceed.2010.05.074] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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93
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Ríos A, Martínez-Alarcón L, Sánchez J, López-Navas A, Ramis G, Ramírez P, Parrilla P. Welsh Citizens in South-Eastern Spain: A Study of Attitude Toward Organ Donation. Transplant Proc 2010; 42:3116-9. [DOI: 10.1016/j.transproceed.2010.05.066] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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94
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López-Navas A, Ríos A, Riquelme A, Martínez-Alarcón L, Pons J, Ramírez P, Parrilla P. Obsessive-Compulsive Psychological Symptoms of Patients on the Liver Transplant Waiting List. Transplant Proc 2010; 42:3153-5. [DOI: 10.1016/j.transproceed.2010.05.060] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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95
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López-Navas A, Ríos A, Riquelme A, Martínez-Alarcón L, Miras M, Ramírez P, Parrilla P. Coping Styles of Patients on the Liver Transplant Waiting List. Transplant Proc 2010; 42:3149-52. [DOI: 10.1016/j.transproceed.2010.05.068] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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96
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Martínez-Alarcón L, Ríos A, Ramis G, Quereda J, Herrero J, Muñoz A, Parrilla P, Ramírez P. Are Veterinary Students in Favor of Xenotransplantation? An Opinion Study in a Spanish University With a Xenotransplantation Program. Transplant Proc 2010; 42:2130-3. [DOI: 10.1016/j.transproceed.2010.05.108] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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97
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Ríos A, López-Navas A, Ayala-García MA, Sebastián MJ, Abdo-Cuza A, Martínez-Alarcón L, López-López A, Ramírez EJ, Muñoz G, Camacho A, Suárez-López J, Castellanos R, Rodríguez JS, Martínez MA, Nieto A, Ramírez P, Parrilla P. Attitudes toward living kidney donation in transplant hospitals: a Spanish, Mexican, and Cuban multicenter study. Transplant Proc 2010; 42:228-32. [PMID: 20172317 DOI: 10.1016/j.transproceed.2009.11.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
INTRODUCTION Living donor kidney (LKD) transplantation provides better results than deceased donor donation, involving minimum risk for the donor. However, LKD donation rates are low in most countries. We analyzed attitudes toward LKD in transplant hospitals in Spain, Mexico, and Cuba. MATERIALS AND METHODS Data were obtained from five transplant hospitals through the International Collaborative Program "Proyecto Donante Vivo, Murcia" in three countries: Spain (n = 1168), Mexico (n = 903), and Cuba (n = 202). The random sample (2273 employees) was stratified according to job category. The instrument used to evaluate attitude was a validated questionnaire. Statistical analysis included Student t test, the chi(2) test, and multivariate analysis. RESULTS Eighty eight percent (n = 2002) of Spanish, Mexican, and Cuban transplant hospital personnel were in favor of related LKD and 24% nonrelated LKD (n = 555). Attitudes were more favorable among centers in Cuba 97% (n = 195), followed by Mexico 88% (n = 793) and by Spain 87% (n = 1014; P < .001). According to job category, 91% (n = 617) of physicians were in favor, 88% (n = 543) of nurses, 85% (n = 198) of health care assistants, and 85% (n = 198) of auxiliary personnel. Attitudes were related to variables of: attitude toward deceased donation (P < .001), discussion about organ donation and transplantation (P < .001), concern about body mutilation after donation (P = .001), a possible need for a transplant in the future (P < .001), and attitude toward living liver donation (P < .001). CONCLUSIONS Attitudes toward LKD in Hispanic/Latin Transplant Hospitals were favorable and could encourage an increase in LKD in the coming years assuming suitable sociopolitical and economic condition, as well as support from nephrologists.
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Ríos A, Rodríguez JM, Acosta JM, Balsalobre MD, Torregrosa N, Sola J, Pérez-Flores D, Parrilla P. Prognostic Value of Histological and Immunohistochemical Characteristics for Predicting the Recurrence of Medullary Thyroid Carcinoma. Ann Surg Oncol 2010; 17:2444-51. [DOI: 10.1245/s10434-010-1021-4] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2008] [Indexed: 12/11/2022]
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Ríos A, López-Navas A, Ayala M, Sebastián M, Martínez-Alarcón L, Ramírez E, Muñoz G, Camacho A, López-López A, Rodríguez J, Martínez M, Nieto A, Ramírez P, Parrilla P. Attitudes of Spanish and Mexican Resident Physicians Faced With Solid Organ Donation and Transplantation. Transplant Proc 2010; 42:233-8. [DOI: 10.1016/j.transproceed.2009.11.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Ríos A, López-Navas AI, Ramírez P, Parrilla P. [Cadaveric donor procurement units faced with living donation]. Nefrologia 2010; 30:698-699. [PMID: 21113221 DOI: 10.3265/nefrologia.pre2010.sep.10590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/01/2010] [Indexed: 05/30/2023] Open
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