251
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Marco J, González L, Cuervo LA, Beltrán de Heredia F, Barberán M, Marín C, Blasco JM. Brucella ovis infection in two flocks of sheep. Vet Rec 1994; 135:254-6. [PMID: 7810048 DOI: 10.1136/vr.135.11.254] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Brucella ovis infection could not be eradicated from two flocks of sheep despite serologically testing and culling the infected rams for four years. The hypothesis that the ewes played a major role in the maintenance of the infection in both flocks was investigated by using serological, bacteriological and pathological criteria. Specific antibodies against B ovis were demonstrated in 71 ewes in the two flocks. Forty-four of the seropositive ewes were slaughtered for bacteriological and pathological studies and B ovis was isolated from 16 of them; the uterus was the target organ of the infection, although extrauterine infection was also demonstrated in some of the infected ewes.
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252
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Herrero M, Sánchez-Guilarte J, Manzarbeitia F, González L, Gallego R. [Macrocytic anemia and dysphagia]. Rev Clin Esp 1994; 194:649-50. [PMID: 7938848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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253
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Böhle F, Carretero JM, González L, Martín JL. New iodinated contrast agents. The physicochemical and biological properties of asymmetric dimers. Invest Radiol 1994; 29 Suppl 2:S264-6. [PMID: 7928252 DOI: 10.1097/00004424-199406001-00091] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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254
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Armelles G, Castrillo P, Dominguez PS, González L, Ruiz A, Contreras-Solorio DA, Velasco VR, García-Moliner F. Optical anisotropy of (113)-oriented GaAs/AlAs superlattices. PHYSICAL REVIEW. B, CONDENSED MATTER 1994; 49:14020-14023. [PMID: 10010358 DOI: 10.1103/physrevb.49.14020] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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255
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Villegas A, González L, Furio V, González FA, Sánchez J, Armada B, Ropero P, Valverde F. Congenital dyserythropoietic anemia type III with unbalanced globin chain synthesis. Eur J Haematol 1994; 52:251-3. [PMID: 8005239 DOI: 10.1111/j.1600-0609.1994.tb00657.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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256
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Vañó E, Velasco A, Morán P, González L, Alvarez Pedrosa CS. Evolution of diagnostic radiology in a big hospital during a 5 year period, and the derived collective dose. Br J Radiol 1993; 66:892-8. [PMID: 8220972 DOI: 10.1259/0007-1285-66-790-892] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
An analysis is presented of the trends in the annual number of radiological examinations and in the average effective dose equivalent for each type of examination in a big Spanish hospital. Annual frequencies for each type of examination, annual average effective dose equivalent values for each study group, and the contribution of each examination group to the collective dose are presented. Also, sex and age distributions for several important examinations are given, and their impact on the collective dose is reviewed.
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257
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Sitges M, Chiu LM, González L. Vesicular and carrier-mediated depolarization-induced release of [3H]GABA: inhibition by amiloride and verapamil. Neurochem Res 1993; 18:1081-7. [PMID: 8255356 DOI: 10.1007/bf00966688] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
The Ca(2+)-dependent, presumably exocytotic fraction of the [3H]GABA released by depolarization is dissected from the depolarization-induced Na(+)-dependent, carrier-mediated fraction of [3H]GABA release in mouse brain synaptosomes. GABA homoexchange is prevented by the [3H]GABA carrier blocker, DABA. The absence of external Na+ completely abolishes the release of the carrier-mediated, presumably cytoplasmic release of [3H]GABA induced by homoexchange and heteroexchange with GABA and DABA, respectively. The carrier-mediated, Na(+)-dependent fraction of the depolarization-induced release of [3H]GABA is resistant to tetrodotoxin (TTX) but is sensitive to amiloride and verapamil. The Ca(2+)-dependent fraction of the [3H]GABA released by high K+ depolarization is also completely abolished by amiloride (from 300 microM) and sensitive to verapamil (30 microM), but in contrast is insensitive to the absence of external Na+ and to DABA. On the basis of these results we conclude that amiloride and verapamil inhibit high K(+)-induced release of [3H]GABA by antagonizing the entrance of Ca2+ (and possibly Na+ when external Ca2+ is absent) through a population of voltage sensitive presynaptic Ca2+ channels activated by depolarization.
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258
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Bas J, Mestre M, Griñó JM, Massip E, Castelao AM, Romeu A, González L, Valls A, Buendía E. In vitro donor-specific hyporesponsiveness and T cell subsets in renal allograft recipients. Allergol Immunopathol (Madr) 1993; 21:136-40. [PMID: 8237717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
In order to assess the immune mechanisms triggered by an immunosuppressive regimen consisting of prophylactic antilymphocyte globulin plus low-dose cyclosporine A and steroids, we studied the short-term evolution of both, anti donor in vitro alloresponse and peripheral blood T cell subsets in 21 recipients of a cadaveric kidney allograft. Spleen cells from cadaveric donors and peripheral blood lymphocytes from the respective recipients pretransplant (pre-Tx), at three and six months posttransplant (post-Tx) were obtained to perform one-way mixed lymphocyte cultures and flow cytometry analysis of lymphocyte subsets. The results indicated the development of donor-specific mixed lymphocyte culture (MLC) hyporesponsiveness as early as three months post-Tx, paralleled by a decrease in CD4+CD29+ helper-inducer cells and by an increase in CD8+CD45RA+ suppressor lymphocytes in peripheral blood. These changes were reflected in a very good clinical outcome of the patients. The present results further suggest that suppression of the immune system just before transplantation is a suitable method to induce early specific hyporesponsiveness to the allograft.
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259
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Hervás JA, González L, Gil J, Paoletti LC, Madoff LC, Benedí VJ. Neonatal group B streptococcal infection in Mallorca, Spain. Clin Infect Dis 1993; 16:714-8. [PMID: 8099503 DOI: 10.1093/clind/16.5.714] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
Early onset infection in neonates caused by group B Streptococcus and the prevalence of colonization by this microorganism in a group of 1,003 pregnant women and their neonates were studied. The capsular serotypes of the colonizing and infecting bacterial isolates and the components of C protein expressed were determined. Except for serotype IV, all the currently recognized capsular serotypes (including serotype V) were found. Among the colonizing strains, serotypes III, Ia, and Ib were almost equally represented and accounted for 82% of the isolates. Serotype III was predominantly found in cases of infection (55%), and serotypes Ia and V were also found in such cases. C protein was not detected in serotype III isolates, but alpha and/or beta components of this protein were found in isolates of all other serotypes. Neonatal infection and colonization due to this microorganism were observed in 1.2 cases per 1,000 live births and in 7.1% of pregnant women. Host factors for infection, such as low birth weight, premature delivery, and prolonged rupture of membranes, were uncommon. The level of specific antibodies to serotype III was also quantitated; lower levels were found in infected children and their mothers than in healthy infants and pregnant women. Further similar studies in Spain are necessary so that preventive measures can be planned.
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260
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Panduro A, Castrillón L, González L, Shafritz DA. Regulation of hepatic and non-hepatic apolipoprotein A-I and E gene expression during liver regeneration. BIOCHIMICA ET BIOPHYSICA ACTA 1993; 1167:37-42. [PMID: 8461330 DOI: 10.1016/0005-2760(93)90214-t] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
In this study, we have determined what tissues other than liver express apolipoprotein (apo) A-I and apo E genes during liver regeneration at the level of the specific mRNAs, and have compared these findings with the serum values of high-density lipoprotein (HDL), low-density lipoprotein (LDL) and very-low-density lipoprotein (VLDL). Our results show that liver and intestine express most of the apo A-I mRNA during liver regeneration. Although apo E mRNA is expressed principally by the liver, its expression is reduced in liver during regeneration but is increased markedly in non-hepatic tissues, such as in intestine, kidney, lung and brain. These results suggest that humoral or circulating factors released during liver regeneration influence apolipoprotein E gene expression, not only in hepatic but also in non-hepatic tissue.
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261
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González L, Juste RA, Cuervo LA, Idigoras I, Saez de Ocariz C. Pathological and epidemiological aspects of the coexistence of maedi-visna and sheep pulmonary adenomatosis. Res Vet Sci 1993; 54:140-6. [PMID: 8384727 DOI: 10.1016/0034-5288(93)90049-l] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Between 1982 and 1991, 159 sheep suffering from chronic respiratory disease were subjected to clinical, pathological, histopathological and serological examination. Maedi was diagnosed in 82 sheep and sheep pulmonary adenomatosis (SPA) in another 59. Forty-one of the latter (69.5 per cent) were seropositive for maedi-visna (MV) virus infection, but only six (10.2 per cent) showed concurrent lung lesions of maedi. Even disregarding the MV seronegative sheep and those younger than two years old, the rate of concurrent maedi lesions did not exceed 18 per cent. During a similar period, 5060 sheep from 161 flocks (86 of which also provided the 159 affected animals) were tested for antibodies to MV virus. The average seroprevalence of MV virus infection among flocks in which SPA was detected was 66.4 per cent, whereas in those in which SPA could not be demonstrated, and in those in which necropsies were not performed, the levels of MV virus infection were 55.1 per cent and 43.6 per cent, respectively. The effect of SPA on the seroprevalence of MV virus infection was independent of other factors, such as breed of sheep or the size of the flocks. These results provide evidence that SPA plays a role in the spread of MV virus infection, although a synergistic effect of the simultaneous infection on the expression of concurrent lesions does not seem to occur.
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MESH Headings
- Animals
- Antibodies, Viral/analysis
- Pneumonia, Progressive Interstitial, of Sheep/complications
- Pneumonia, Progressive Interstitial, of Sheep/epidemiology
- Pneumonia, Progressive Interstitial, of Sheep/pathology
- Prevalence
- Pulmonary Adenomatosis, Ovine/complications
- Pulmonary Adenomatosis, Ovine/epidemiology
- Pulmonary Adenomatosis, Ovine/pathology
- Sheep
- Spain/epidemiology
- Visna-maedi virus/immunology
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262
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Pedraza-Chaverrí J, Cruz C, Hernández-Pando R, Santana T, Arévalo AE, González L, Tapia E, Peña JC, Panduro A. Angiotensin I-converting enzyme activity in rats with carbon tetrachloride-induced acute renal failure. Ren Fail 1993; 15:19-26. [PMID: 8382827 DOI: 10.3109/08860229309065567] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
The angiotensin I-converting enzyme (ACE) activity was measured in urine, serum, and tissues from rats with carbon tetrachloride (CCl4)-induced acute renal failure on days 1, 2, 3, and 7 after CCl4 administration. Serum ACE increased on days 1 to 3. Heart, lung, small intestine, brain, and testis ACE decreased, whereas kidney and liver ACE remained unchanged. Urine ACE activity increased from day 1 to day 3. Our data suggest that the increase in serum ACE may be secondary to the ACE release from the damaged tissues, and that the urine ACE increase may be due to the kidney proximal tubule damage. This work supports the contention that an increase in urine ACE may be an indicator of damage to the proximal tubule.
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263
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Romeu MA, Mestre M, González L, Valls A, Verdaguer J, Corominas M, Bas J, Massip E, Buendia E. Lymphocyte immunophenotyping by flow cytometry in normal adults. Comparison of fresh whole blood lysis technique, Ficoll-Paque separation and cryopreservation. J Immunol Methods 1992; 154:7-10. [PMID: 1401946 DOI: 10.1016/0022-1759(92)90206-9] [Citation(s) in RCA: 73] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
In the present report we have assessed the extent to which Ficoll-Paque separation and cryopreservation of mononuclear cells alter the measurement of lymphocyte subsets by flow cytometry. Standard Ficoll-Paque separation increased the percentage of CD4+, CD19+ and CD4+CD45RA+ cells, as well as decreasing that of CD8+, and CD4+CD29+ cells, compared to the fresh whole blood lysis technique. Moreover, cryopreservation caused a depletion of CD4+ p80+ cells, but normal whole blood values were restored following a short incubation.
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264
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Echeverría E, González L, Fischer M, Ribalta G, Fernández P. [Normative parameter characterization for the auditory brainstem response of the normal newborn]. Rev Med Chil 1992; 120:375-82. [PMID: 1340566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The auditory brainstem response generated by clicks was studied in 119 normal newborns. One ear was studied in detail at 20, 40 and 60 dBnHL, the other at 20 and 30 dBnHL, increasing the intensity if no response was found. The latency for waves I, III and V in the detailed studied ear was 2.7 +/- .39, 5.4 +/- .44 and 7.7 +/- .48, respectively. 85% of newborns had thresholds for auditory brainstem response less than 40 dBnHL, 54% less than 20 dBnHL and 15% between 40 and 60 dBnHL. These findings are compatible with conductive loss in the higher threshold group and support data from Stockard, regarding high risk groups. Additionally, our data suggests that an adequate level to screen for hearing loss in newborns is between 30 and 40 dBnHL.
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265
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Bas J, Masip E, Mestre M, Griñó JM, González C, González L, Buendia E. Donor-specific hyporesponsiveness in renal transplantation. Transplant Proc 1992; 24:76-7. [PMID: 1531717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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266
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González L, Kunstmann G, García M. [A protocol for prognostic evaluation of newborns with necrotizing enterocolitis]. REVISTA CHILENA DE PEDIATRIA 1991; 62:367-70. [PMID: 1845643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
A modified Vásquez-Estévez protocol for prognostic appraisal of newborns with necrotizing enterocolitis was retrospectively applied to 23 confirmed cases from year 1987 throughout 1989 in general metropolitan hospital at Santiago, Chile. Cases were classified as low (0-12 points) or high (13-30) risk according to its corresponding score. Case fatality rates ranged from 7.1% to 77.7% in low and high risk groups, respectively. Sensibility was 87.5%, specificity 86.6% and efficiency 86.6%. Instrument application was easy. It concluded that this is a valuable tool for the prognostic evaluation of necrotizing enterocolitis. A wider and deeper prospective application would allow to measure more exactly its usefulness in other settings.
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267
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Ruiz MJ, González L, Vañó E, Martínez A. Measurement of radiation doses in the most frequent simple examinations in paediatric radiology and its dependence on patient age. Br J Radiol 1991; 64:929-33. [PMID: 1954535 DOI: 10.1259/0007-1285-64-766-929] [Citation(s) in RCA: 28] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Radiation doses to patients were measured in four X-ray rooms specifically devoted to paediatric radiology, from two hospitals. The study was performed for the most frequent simple examinations, namely abdomen, hip and pelvis, skull, spine and chest. Patients were classed into four different age groups: 0.1-1 year, greater than 1-5 years, greater than 5-10 years and greater than 10-14 years. Operating X-ray generator parameters and entrance surface doses were recorded for all groups. Representative values were obtained for standard working conditions prior to any correcting action being taken. Dose values are reported, and some of the differences between the results found in the rooms for each examination are discussed. Without attempting to relate adult and paediatric radiology, the entrance surface doses measured and the provisionally recommended CEC values for similar examinations in adult patients are compared.
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268
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Calzado A, Vañó E, Morán P, Castellote C, Ruiz S, González L. Estimation of doses to patients from "complex" conventional X-ray examinations. Br J Radiol 1991; 64:539-46. [PMID: 2070186 DOI: 10.1259/0007-1285-64-762-539] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
A numerical method has been developed to estimate the organ doses and effective dose-equivalent for patients undergoing three "complex" examinations (barium meal, barium enema and intravenous urography). The separation of radiological procedures into a set of standard numerical views is based on the use of Monte Carlo conversion factors and measurements within a Remab phantom. The radiation doses measured in a phantom for such examinations have been compared with the predictions of the "numerical" method. Dosimetric measurements with thermoluminescent dosemeters attached to the patient's skin along with measurements of the dose-area product during the examination have enabled us to derive organ doses and to estimate the effective dose-equivalent. Mean frequency weighted values of dose-area product, energy imparted to the patient, doses to a set of organs and effective dose-equivalent in the area of Madrid are reported. Comparisons of the results with those from similar surveys in other countries have been made.
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269
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Sopeña B, Sobrado J, Javier Pérez A, Oliver J, Courel M, Palomares L, González L. Rapidly progressive glomerulonephritis and pulmonary tuberculosis. Nephron Clin Pract 1991; 57:251-2. [PMID: 2020362 DOI: 10.1159/000186268] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
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270
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Marcos A, de Benito JL, Ibarra L, Rodriguez A, González L. Adsorption effect of 4-carboxy benzene sulphonyl azide on calcium carbonate in sbr vulcanizates. POLYM INT 1991. [DOI: 10.1002/pi.4990250103] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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271
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Corominas M, Bas J, Romeu A, Valls A, Massip E, González L, Mestre M, Buendía E. Hypersensitivity reaction after orgotein (superoxide dismutase) administration. Allergol Immunopathol (Madr) 1990; 18:297-9. [PMID: 2151501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Orgotein is being increasingly used in the treatment of some inflammatory disorders. Up to now no hypersensitivity reaction has been reported. We present the case of an allergic reaction demonstrated by both, "in vivo" and "in vitro" tests. This finding further supports the need for an adequate control during and after orgotein administration.
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272
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González L, Ibarra ME, Panduro A. [Molecular biology in gastroenterology. 1. Genes and DNA recombinant techniques]. REVISTA DE GASTROENTEROLOGIA DE MEXICO 1990; 55:91-100. [PMID: 2287874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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273
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Crespo D, González L, Salcedo B. [Epidemiologic study of a geriatric population in an isolated community: La Graciosa (Canary islands)]. ACTAS LUSO-ESPANOLAS DE NEUROLOGIA, PSIQUIATRIA Y CIENCIAS AFINES 1990; 18:111-9. [PMID: 2368636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
This epidemiological study gives special attention to the population with the age group of 65 and over. The focus is on 33 persons (15%) of the total population of the "Isla La Graciosa", Canary Islands (Spain), who where interviewed by Psychiatrist. The sociodemographic characteristics, every day life style, the consumption of drugs and alcohol, their mental and physical health and cognitive state of these persons was made according to standardized tests. The results showed that 48% have a somatic illness, in this 48%, 37.5% are suffering from rheumatic illness, 6% suffer from hypertension, 36% are smokers and 39% consume alcohol with 21% of them possible alcoholics. In 21% depressive symptoms were detected and in 55% cognitive disorders. These results have been compared with the population of other islands in which the same age groups have similar characteristics. According to these comparisons the study group from la "Isla La Graciosa" seems to have a higher state of physical health but they have a greater tendency towards cognitive disorders.
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274
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Morey M, Cortés J, Mas JM, González L. [Burkitt's lymphoma and pregnancy]. Med Clin (Barc) 1990; 94:237-8. [PMID: 2329862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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275
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González L, Alvarez Pérez JA, Aza González J, Baldonedo Cernuda R, González J, González Martínez J, Miyar González A, Pérez Suárez A, Vázquez Velasco L. [Biliary lithiasis]. REVISTA ESPANOLA DE LAS ENFERMEDADES DEL APARATO DIGESTIVO 1989; 76:622-6. [PMID: 2699051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
We have reviewed our experience with 2,430 cases of lithiasis of the biliary tract, 500 of them located in the common bile duct and 104 corresponding to residual lithiasis. We have made a general reflexion on the problems aroused by this very common al condition, which has an imprevisible, some times severe, outcome. The recent acquisition of new conservative methods, as disolvents and lithotrix, and the diagnostic and therapeutic role of endoscopy have revolutionated the state of the art and have introduced controversial points still unsolved. As it is common in clinical practice, biliary lithiasis should be approached in a multidisciplinary fashion, employing the most convenient diagnostic procedure for the clinical situation of the patient; a priori no accredited procedure should be disregarded.
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