151
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Kimura AC, Palumbo MS, Meyers H, Abbott S, Rodriguez R, Werner SB. A multi-state outbreak of Salmonella serotype Thompson infection from commercially distributed bread contaminated by an ill food handler. Epidemiol Infect 2005; 133:823-8. [PMID: 16181501 PMCID: PMC2870312 DOI: 10.1017/s0950268805004127] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/10/2005] [Indexed: 11/07/2022] Open
Abstract
Foodborne transmission is estimated to account for 95% of non-typhoidal Salmonella infections reported in the United States; however, outbreaks of salmonellosis are rarely traced to food handlers. In August 2000, an increase in Salmonella serotype Thompson infection was noted in Southern California; most of the cases reported eating at a restaurant chain (Chain A) before illness onset. A case-control study implicated the consumption of burgers at Chain A restaurants. The earliest onset of illness was in a burger bun packer at Bakery B who had not eaten at Chain A but had worked while ill. Bakery B supplied burger buns to some Chain A restaurants in Southern California and Arizona. This outbreak is notable for implicating a food handler as the source of food contamination and for involving bread, a very unusual outbreak vehicle for Salmonella . Inadequate food-handler training as well as delayed reporting to the health department contributed to this outbreak.
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Affiliation(s)
- A C Kimura
- Infectious Diseases Branch, California Department of Health Services, Gardena, CA 90248, USA.
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152
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Hasbún R, Valledor L, Berdasco M, Santamaria E, Cañal M, Rodriguez R, Rios D, Sánchez M. IN VITRO PROLIFERATION AND GENOME DNA METHYLATION IN ADULT CHESTNUTS. ACTA ACUST UNITED AC 2005. [DOI: 10.17660/actahortic.2005.693.42] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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153
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Craig E, Rodriguez R, Ruben B. Granular cell tumor of the scrotum. Dermatol Online J 2005; 11:25. [PMID: 16150233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/04/2023] Open
Affiliation(s)
- E Craig
- Department of Dermatology, UC Davis Medical Center, Sacramento, CA, USA
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154
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Martin E, Mayorga C, Rodriguez R, Torres MJ, Blanca M. Drug hypersensitivity: insights into pathomechanisms. Eur Ann Allergy Clin Immunol 2005; 37:207-12. [PMID: 16156398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
In adverse reactions to drugs with an immunological basis (ADRIB) specific IgE antibodies or sensitised effector T cells take part. Each type of response induces well defined clinical entities. For T cell reactions, classically known as Type IV Gel and Coomb responses, different subtypes have been classified. These correspond to different clinical entitles and each have characteristically histopathological findings. Advanced in vitro studies by development of T cell liens and T cell clones to different drugs compounds and the monitorisation of the immunological response during the course of these diseases has provided new insights for a better understanding and evaluation of ADRIB.
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Affiliation(s)
- E Martin
- Allergy Service, Research Unit for Allergic Diseases, Carlos Haya Hospital, Malaga Spain
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155
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Zain JM, Smith E, Palmer J, Parker P, Snyder D, Rodriguez R, Nakamura R, Pullarkat V, Al-Kadhimi Z, Rosenthal J, Smith D. The use of daclizumab for treatment of steroid refractory acute GVHD. A City of Hope experience. J Clin Oncol 2005. [DOI: 10.1200/jco.2005.23.16_suppl.6672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- J. M. Zain
- City of Hope Natl Cancer Ctr, Duarte, CA
| | - E. Smith
- City of Hope Natl Cancer Ctr, Duarte, CA
| | - J. Palmer
- City of Hope Natl Cancer Ctr, Duarte, CA
| | - P. Parker
- City of Hope Natl Cancer Ctr, Duarte, CA
| | - D. Snyder
- City of Hope Natl Cancer Ctr, Duarte, CA
| | | | | | | | | | | | - D. Smith
- City of Hope Natl Cancer Ctr, Duarte, CA
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156
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Salazar R, Casado E, Lopez Martin A, Pardo B, Roca JM, Rodriguez R, Garcia M, Tabernero J, de las Heras B, Paz-Ares L. Clinical and pharmacokinetic phase I dose-finding study of kahalalide F (KF) administered as a prolonged infusion in patients with solid tumors. J Clin Oncol 2005. [DOI: 10.1200/jco.2005.23.16_suppl.2059] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- R. Salazar
- Inst Català d’Oncology, Barcelona, Spain; Vall D’Hebron Univ Hosp, Barcelona, Spain; Hosp Doce de Octubre, Madrid, Spain; Catalan Institute of Oncology, Barcelona, Spain; Pharma Mar S. A. U., Madrid, Spain
| | - E. Casado
- Inst Català d’Oncology, Barcelona, Spain; Vall D’Hebron Univ Hosp, Barcelona, Spain; Hosp Doce de Octubre, Madrid, Spain; Catalan Institute of Oncology, Barcelona, Spain; Pharma Mar S. A. U., Madrid, Spain
| | - A. Lopez Martin
- Inst Català d’Oncology, Barcelona, Spain; Vall D’Hebron Univ Hosp, Barcelona, Spain; Hosp Doce de Octubre, Madrid, Spain; Catalan Institute of Oncology, Barcelona, Spain; Pharma Mar S. A. U., Madrid, Spain
| | - B. Pardo
- Inst Català d’Oncology, Barcelona, Spain; Vall D’Hebron Univ Hosp, Barcelona, Spain; Hosp Doce de Octubre, Madrid, Spain; Catalan Institute of Oncology, Barcelona, Spain; Pharma Mar S. A. U., Madrid, Spain
| | - J. M. Roca
- Inst Català d’Oncology, Barcelona, Spain; Vall D’Hebron Univ Hosp, Barcelona, Spain; Hosp Doce de Octubre, Madrid, Spain; Catalan Institute of Oncology, Barcelona, Spain; Pharma Mar S. A. U., Madrid, Spain
| | - R. Rodriguez
- Inst Català d’Oncology, Barcelona, Spain; Vall D’Hebron Univ Hosp, Barcelona, Spain; Hosp Doce de Octubre, Madrid, Spain; Catalan Institute of Oncology, Barcelona, Spain; Pharma Mar S. A. U., Madrid, Spain
| | - M. Garcia
- Inst Català d’Oncology, Barcelona, Spain; Vall D’Hebron Univ Hosp, Barcelona, Spain; Hosp Doce de Octubre, Madrid, Spain; Catalan Institute of Oncology, Barcelona, Spain; Pharma Mar S. A. U., Madrid, Spain
| | - J. Tabernero
- Inst Català d’Oncology, Barcelona, Spain; Vall D’Hebron Univ Hosp, Barcelona, Spain; Hosp Doce de Octubre, Madrid, Spain; Catalan Institute of Oncology, Barcelona, Spain; Pharma Mar S. A. U., Madrid, Spain
| | - B. de las Heras
- Inst Català d’Oncology, Barcelona, Spain; Vall D’Hebron Univ Hosp, Barcelona, Spain; Hosp Doce de Octubre, Madrid, Spain; Catalan Institute of Oncology, Barcelona, Spain; Pharma Mar S. A. U., Madrid, Spain
| | - L. Paz-Ares
- Inst Català d’Oncology, Barcelona, Spain; Vall D’Hebron Univ Hosp, Barcelona, Spain; Hosp Doce de Octubre, Madrid, Spain; Catalan Institute of Oncology, Barcelona, Spain; Pharma Mar S. A. U., Madrid, Spain
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157
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Lopez-Martin A, Cubedo R, Garcia-Rivas I, Castellano D, Perez-Romero A, Savulsky C, Rodriguez R, España P, Cortes-Funes H, Paz-Ares L. Phase I trial of the sequential administration of pemetrexed (P) and docetaxel (D) in patients (pts) with advanced solid tumours. J Clin Oncol 2005. [DOI: 10.1200/jco.2005.23.16_suppl.2108] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- A. Lopez-Martin
- Hosp Univ 12 de Octubre, Madrid, Spain; Clínica Univ Puerta de Hierro, Madrid, Spain; Eli Lilly & Co, Alcobendas, Spain; Aventis-Sanofi, Madrid, Spain
| | - R. Cubedo
- Hosp Univ 12 de Octubre, Madrid, Spain; Clínica Univ Puerta de Hierro, Madrid, Spain; Eli Lilly & Co, Alcobendas, Spain; Aventis-Sanofi, Madrid, Spain
| | - I. Garcia-Rivas
- Hosp Univ 12 de Octubre, Madrid, Spain; Clínica Univ Puerta de Hierro, Madrid, Spain; Eli Lilly & Co, Alcobendas, Spain; Aventis-Sanofi, Madrid, Spain
| | - D. Castellano
- Hosp Univ 12 de Octubre, Madrid, Spain; Clínica Univ Puerta de Hierro, Madrid, Spain; Eli Lilly & Co, Alcobendas, Spain; Aventis-Sanofi, Madrid, Spain
| | - A. Perez-Romero
- Hosp Univ 12 de Octubre, Madrid, Spain; Clínica Univ Puerta de Hierro, Madrid, Spain; Eli Lilly & Co, Alcobendas, Spain; Aventis-Sanofi, Madrid, Spain
| | - C. Savulsky
- Hosp Univ 12 de Octubre, Madrid, Spain; Clínica Univ Puerta de Hierro, Madrid, Spain; Eli Lilly & Co, Alcobendas, Spain; Aventis-Sanofi, Madrid, Spain
| | - R. Rodriguez
- Hosp Univ 12 de Octubre, Madrid, Spain; Clínica Univ Puerta de Hierro, Madrid, Spain; Eli Lilly & Co, Alcobendas, Spain; Aventis-Sanofi, Madrid, Spain
| | - P. España
- Hosp Univ 12 de Octubre, Madrid, Spain; Clínica Univ Puerta de Hierro, Madrid, Spain; Eli Lilly & Co, Alcobendas, Spain; Aventis-Sanofi, Madrid, Spain
| | - H. Cortes-Funes
- Hosp Univ 12 de Octubre, Madrid, Spain; Clínica Univ Puerta de Hierro, Madrid, Spain; Eli Lilly & Co, Alcobendas, Spain; Aventis-Sanofi, Madrid, Spain
| | - L. Paz-Ares
- Hosp Univ 12 de Octubre, Madrid, Spain; Clínica Univ Puerta de Hierro, Madrid, Spain; Eli Lilly & Co, Alcobendas, Spain; Aventis-Sanofi, Madrid, Spain
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158
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Rodriguez R, Parker P, Nademanee A, Smith D, O'Donnell MR, Stein A, Snyder DS, Fung HC, Krishnan AY, Popplewell L, Cohen S, Somlo G, Angelopoulou M, Al-Kadhimi Z, Falk PM, Spielberger R, Kogut N, Sahebi F, Senitzer D, Slovak M, Schriber J, Forman SJ. Cyclosporine and mycophenolate mofetil prophylaxis with fludarabine and melphalan conditioning for unrelated donor transplantation: a prospective study of 22 patients with hematologic malignancies. Bone Marrow Transplant 2005; 33:1123-9. [PMID: 15064696 DOI: 10.1038/sj.bmt.1704493] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
In an attempt to decrease toxicity in high-risk patients undergoing unrelated donor hematopoietic stem cell transplantation (URD HSCT), we tested a combination of cyclosporine (CSP) and mycophenolate mofetil (MMF) as graft-versus-host disease (GVHD) prophylaxis with the reduced-intensity conditioning regimen fludarabine/melphalan (Flu/Mel). A total of 22 adult patients with advanced myeloid (n=15) and lymphoid (n=7) malignancies were treated. All patients received Flu 25 mg/m2 for 5 days and Mel 140 mg/m2, with CSP 3 mg/kg daily and MMF 15 mg/kg three times a day. The median age was 49 years (range 18-66). Durable engraftment was seen in all but one patient with myelofibrosis. The 1-year nonrelapse mortality was 32%, 27% from GVHD. The cumulative incidence of acute GVHD grade 2-4 and 3-4 was 63 and 41%, respectively. With a median follow-up of 18 months, the disease-free survival (DFS) and overall survival (OS) are 55 and 59%, respectively. For patients with AML and MDS (n=14), the DFS and OS is 71%. For patients undergoing a second transplant (n=14), the DFS and OS is 57%. In conclusion, this regimen is associated with acceptable toxicity but high rates of GVHD in high-risk patients undergoing URD HSCT. Encouraging disease control for patients with advanced myeloid malignancies was observed.
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Affiliation(s)
- R Rodriguez
- City of Hope National Medical Center, Duarte, CA 91010, USA.
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159
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Sun JY, Gaidulis L, Miller MM, Goto RM, Rodriguez R, Forman SJ, Senitzer D. Development of a multiplex PCR-SSP method for Killer-cell immunoglobulin-like receptor genotyping. ACTA ACUST UNITED AC 2005; 64:462-8. [PMID: 15361123 DOI: 10.1111/j.1399-0039.2004.00303.x] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Killer-cell immunoglobulin-like receptors (KIRs) on natural killer (NK) cells recognize groups of HLA class I alleles. Recent work suggests that KIR genotype may affect the outcome of hematopoietic stem-cell transplants and that prospective KIR typing maybe of benefit in future matching of donors and recipients. A simple and informative KIR genotyping method was developed using a multiplex polymerase chain reaction-sequence-specific primer strategy. This method contains four multiplex reactions for detecting all functional KIR genes, including some 2DS4 variants that harbor a common deletion. Primer pairs were designed to provide short amplicons (108-565 bp) that can be analyzed by agarose gel electrophoreses or by automated electrophoretic systems. This method was evaluated in a blinded survey with the NK/KIR Phase II QC Panel (a total of 16 cell lines) from the 14th International Histocompatibility Workshop (IHWS), and the results are 100% concordant with the consensus genotype. Results in further KIR genotyping of 20 reference cell lines from the 10th IHWS were consistent with previously published genotypes, matching those of one study in instances where different genotypes have been previously reported. The genotypes obtained in this study may be helpful to other labs developing KIR genotyping methods in resolving typing discrepancies and in detecting common deletion variants of 2DS4. This method can save labor and reagent costs. It provides good results from partially degraded template DNA due to short amplicons in this method. It is convenient to use in both clinical and research laboratories.
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Affiliation(s)
- J Y Sun
- Division of Hematology and Bone Marrow Transplantation, City of Hope National Medical Center, Duarte, CA 91010, USA
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160
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Gollan A, Rodriguez R, Nogues M, Occhi H. Diarrea Viral Bovina: Estudios Virológicos de un Ternero con Malformaciones. FAVE Cs Vet 2005. [DOI: 10.14409/favecv.v2i1.1388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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161
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162
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Roels S, Escalona M, Canal MJ, Rodriguez R, Sandoval J, De Schepper S, Debergh P. The effect of headspace renewal in a temporary immersion bioreactor (TIB) on plantain shoot proliferation and quality. Commun Agric Appl Biol Sci 2005; 70:221-3. [PMID: 16366313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Affiliation(s)
- S Roels
- Department Plant Production, Ghent University, Belgium
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163
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Nakamura R, Rodriguez R, Palmer J, Stein A, Chang K, Slovak M, Bhatia R, Kirschbaum M, Forman S, O'Donnell M. P-97 Reduced-intensity allogeneichematopoietic stem cell transplantation for myelodysplastic syndrome. Leuk Res 2005. [DOI: 10.1016/s0145-2126(05)80161-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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164
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Fritz GN, Engman S, Rodriguez R, Wilkerson RC. Dentification of four vectors of human Plasmodium spp. by multiplex PCR: Anopheles rangeli, An. strodei, An. triannulatus, and An. trinkae (Diptera: Culicidae: Nyssorhynchus). J Med Entomol 2004; 41:1111-1115. [PMID: 15605651 DOI: 10.1603/0022-2585-41.6.1111] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
One of the major obstacles for studies of the biology, ecology, and behavior of Neotropical vectors of human Plasmodium has been the lack of reliable and efficient means of identifying many species. Although the subgenus Nyssorhynchus includes most species responsible for human transmission in South America, there are no polymerase chain reaction (PCR)-based techniques for identifying members of this taxon. We describe the first multiplex PCR for identifying four species in the subgenus Nyssorhynchus that are vectors of human Plasmodium spp. Four species specific primers, together with a universal primer that anneals to the 5.8S rDNA region, produce amplicons of the internal transcribed spacer two with base pair sizes of 131,308,371, and 441 for An. triannulatus, An. trinkae, An. strodei, and An. rangeli, respectively.
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Affiliation(s)
- G N Fritz
- Department of Biological Sciences, East-Illinois University, Charleston, IL 61920, USA
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165
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Lamaison D, Motreff P, Jean F, Geoffroy E, Rodriguez R, Souteyrand G, Chanseaume S, Terrazoni S, Cassagnes J. [The place of telemedicine in rhythmology and cardiac pacing]. Arch Mal Coeur Vaiss 2004; 97:1160-4. [PMID: 15609921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/01/2023]
Abstract
Rapid advancement in telecommunication technology has made possible automatic periodic transmission of pacemaker and implantable defibrillator data to the attending physician (home monitoring). Furthermore, technology using remote control software allows, through device programmers, interrogation of the device memory, permitting remote monitoring by physicians or technical support of the manufacturer. Potential applications of these two capabilities include a close watch over the functioning of the devices, ability to obtain an earlier diagnosis (and management) of arrhythmic events, and assistance at the time of implant procedure and routine follow up. Finally these new tools raise several questions concerning safety aspects (including reliability of transmission, encrypted transfer, restricted access of the central database), economic aspects, and physician and manufacturer's liability.
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Affiliation(s)
- D Lamaison
- Service de cardiologie, hôpital G. Montpied, Clermont-Ferrand.
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166
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Fung HC, Stein A, Slovak ML, O'donnell MR, Snyder DS, Cohen S, Smith D, Krishnan A, Spielberger R, Bhatia R, Bhatia S, Falk P, Molina A, Nademanee A, Parker P, Rodriguez R, Rosenthal J, Sweetman R, Kogut N, Sahebi F, Popplewell L, Vora N, Somlo G, Margolin K, Chow W, Smith E, Forman SJ. A long-term follow-up report on allogeneic stem cell transplantation for patients with primary refractory acute myelogenous leukemia: impact of cytogenetic characteristics on transplantation outcome. Biol Blood Marrow Transplant 2004; 9:766-71. [PMID: 14677116 DOI: 10.1016/j.bbmt.2003.08.004] [Citation(s) in RCA: 93] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
The prognosis of patients with primary refractory acute myelogenous leukemia (AML) is poor. Our initial report suggested that some patients could achieve durable remission after allogeneic stem cell transplantation (SCT). Herein, we update our initial experience and report further analysis of this group of patients to determine whether there are pre-SCT prognostic factors predictive of posttransplantation relapse and survival. We reviewed the records of 68 patients who consecutively underwent transplantation at the City of Hope Cancer Center with allogeneic SCT for primary refractory AML between July 1978 and August 2000. Potential factors associated with overall survival and disease-free survival were examined. With a median follow-up of 3 years, the 3-year cumulative probabilities of disease-free survival (DFS), overall survival (OS), and relapse rate for all 68 patients were 31% (95% confidence interval [CI], 20%-42%), 30% (95% CI, 18%-41%), and 51% (95% CI, 38%-65%), respectively. In multivariate analysis, the only variables associated with shortened OS and DFS included the use of an unrelated donor as the stem cell source (relative risk, 2.23 [OS] and 2.05 [DFS]; P =.0005 and.0014, respectively) and unfavorable cytogenetics before SCT (relative risk: 1.68 [OS] and 1.58 [DFS]; P =.0107 and.0038, respectively). Allogeneic SCT can cure approximately one third of patients with primary refractory AML. Cytogenetic characteristics before SCT correlate with transplantation outcome and posttransplantation relapse.
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Affiliation(s)
- H C Fung
- Division of Hematology and Bone Marrow Transplantation, City of Hope Comprehensive Cancer Center, Duarte, California 91010, USA.
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167
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Sun J, Gaidulis L, Dagis A, Miller M, Rodriguez R, Ikle D, Forman S, Senitzer D. An algorithm calculating KIR genotype compatibility to predict outcomes of hematopoietic cell transplants (HCTs). Hum Immunol 2004. [DOI: 10.1016/j.humimm.2004.07.027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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168
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Keller W, Verdino P, Barderas R, Rodriguez R, Westritschnig K, Valenta R. The structure of 2 EF-hand calcium binding allergen Che a 3. Acta Crystallogr A 2004. [DOI: 10.1107/s0108767304097478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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169
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170
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Rial R, Serrano Fj FJ, Vega M, Rodriguez R, Martin A, Mendez J, Mendez R, Santos E, Gallego J. Treatment of Type II Endoleaks after Endovascular Repair of Abdominal Aortic Aneurysms: Translumbar Puncture and Injection of Thrombin into the Aneurysm Sac. Eur J Vasc Endovasc Surg 2004; 27:333-5. [PMID: 14760606 DOI: 10.1016/j.ejvs.2003.11.005] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
OBJECTIVES The aim of this article is to report our experience in the use of a new technique for the treatment of type II endoleaks which appear after the endovascular treatment of abdominal aortic aneurysms. MATERIALS AND METHODS In three patients with secondary type II endoleaks, we performed a translumbar puncture, introducing a 22-Gauge needle into the aneurysm sac under CT guidance. Once intrasac pressure had been registered, 1000U (2 ml) of human thrombin were slowly injected into the sac. RESULTS Complete sealing of the endoleak was achieved in all three patients, confirmed by the lack of contrast filling of the sac in the CT scans performed 5 min and 24 h after the procedure. Initial intrasac pressure was equal to systolic arterial pressure in the three patients. After the procedure, the pressure decreased by 30-40 mmHg. There were no complications during the procedure, which lasted 45-90 min. No endoleak recurrence has been observed in any of the three cases 6 months later. CONCLUSIONS We present an alternative method of treating type II endoleaks, which could become the treatment of choice if and when a wider experience confirms our initial good results.
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Affiliation(s)
- R Rial
- Department of Vascular Surgery, Hospital Clinico San Carlos, Universidad Complutense, Madrid, Spain
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171
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Di Maio V, Lánský P, Rodriguez R. Different types of noise in leaky integrate-and-fire model of neuronal dynamics with discrete periodical input. Gen Physiol Biophys 2004; 23:21-38. [PMID: 15270127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/30/2023]
Abstract
Different variants of stochastic leaky integrate-and-fire model for the membrane depolarisation of neurons are investigated. The model is driven by a constant input and equidistant pulses of fixed amplitude. These two types of signal are considered under the influence of three types of noise: white noise, jitter on interpulse distance, and noise in the amplitude of pulses. The results of computational experiments demonstrate the enhancement of the signal by noise in subthreshold regime and deterioration of the signal if it is sufficiently strong to carry the information in absence of noise. Our study holds mainly to central neurons that process discrete pulses although an application in sensory system is also available.
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Affiliation(s)
- V Di Maio
- Istituto di Cibernetica, E. Caianiello del CNR, Pozzuoli, Napoli, Italy.
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172
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Nademanee A, Fung H, Molina A, Krishnan A, Rodriguez R, Popplewell L, Spielberger R, O’Donnell M, Snyder D, Parker P, Stein A, Kogut N, Falk P, Sahebi F, Zain J, Saville W, Raubitschek A, Forman S. The city of hope experience with novel transplant regimens that incorporate standard and escalated dose 90YTTRIUM ibritumomab tiuxetan (90Y-Zevalin®) radioimmunotherapy (RIT) for autologous stem cell transplantation (ASCT) in patients with B-cell non-Hodgkin’s lymphoma (NHL): targeted intensification without increased toxicity and elimination of total body irradiation (TBI). Biol Blood Marrow Transplant 2004. [DOI: 10.1016/j.bbmt.2003.12.117] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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173
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Romero AM, Saez-Vergara JC, Rodriguez R, Domínguez-Mompell R. Study of the ratio of non-neutron to neutron dose components of cosmic radiation at typical commercial flight altitudes. Radiat Prot Dosimetry 2004; 110:357-362. [PMID: 15353674 DOI: 10.1093/rpd/nch112] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
CIEMAT, in close co-operation with Iberia Airlines, carried out an extensive programme of in-flight measurements, covering both hemispheres, during the years 2001 and 2002. Although the instrumentation onboard included different active devices, the results presented here were obtained from a polyethylene/tungsten-moderated rem meter (SWENDI2; Eberline) and an ionisation chamber (RSS-131; Reuter-Stokes) used for measuring the ambient dose equivalent due to the neutron and the non-neutron components of cosmic radiation, respectively. This paper presents a study of each of the dose components mentioned as a function of the vertical cut-off rigidity and the flight altitude. The ratio between the two components is also presented to determine the variations in cosmic radiation composition as a function of the aforementioned parameters. The experimental results have also been compared with those predicted by the code EPCARD3.2 for the non-neutron and the neutron components of the ambient dose equivalent.
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Affiliation(s)
- A M Romero
- CIEMAT, Avda. Complutense, 22, E-28040 Madrid, Spain.
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174
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Garcia JM, Rodriguez R, Dominguez G, Silva JM, Provencio M, Silva J, Colmenarejo A, Millan I, Muñoz C, Salas C, Coca S, España P, Bonilla F. Prognostic significance of the allelic loss of the BRCA1 gene in colorectal cancer. Gut 2003; 52:1756-63. [PMID: 14633957 PMCID: PMC1773878 DOI: 10.1136/gut.52.12.1756] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
BACKGROUND Survival at the intermediate stage of colorectal cancer (CRC) is less predictable than in the early and advanced stages. Several genetic markers possibly involved in growth and progression of CRC can be used for prognosis. AIMS This study investigated the proportion of allelic loss (loss of heterozygosity (LOH)) at the BRCA1 locus in sporadic CRC and its value in patient prognosis. PATIENTS AND METHODS A total of 314 patients were investigated for LOH at the BRCA1 locus using polymerase chain reaction by means of three intragenic polymorphic microsatellite markers. Allelic losses were compared with clinicopathological characteristics of patients, recurrence rate, disease free survival (DFS), and overall survival. RESULTS Twenty six patients were excluded because of microsatellite instability. Of the remaining 288 cases, 244 (84.7%) were informative, with 97 (39.8%) patients bearing BRCA1 LOH. Recurrence rate was higher in patients with LOH (p=0.0003), and DFS was 73.3% (SEM 5.7) at five years in patients without LOH, and 49.2% (7.1) in cases with positive allelic loss (p=0.0004). Retention of alleles at the BRCA1 locus was associated with a favourable DFS in stages I and II (p<0.05). The presence of LOH was also significantly associated with short overall survival (p=0.02). Multivariate analysis in the complete series showed that stage (p=0.006) and lymph node metastases (> or =4 nodes, p=0.0001; 1-3 nodes, p=0.038) were independent prognostic factors. However, multivariate study by stages revealed that BRCA1 LOH was an independent prognostic factor in stages I and II (p=0.001). CONCLUSIONS BRCA1 LOH is a molecular alteration present in CRC, with unfavourable repercussions for overall survival, that could be considered as an outstanding independent prognostic factor in stages I and II.
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Affiliation(s)
- J M Garcia
- Molecular Genetics Unit, Hospital Universitario Puerta de Hierro, Madrid, Spain
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175
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Fung HC, Cohen S, Rodriguez R, Smith D, Krishnan A, Somlo G, Sahebi F, Senitzer D, O'Donnell MR, Stein A, Snyder DS, Spielberger R, Bhatia R, Falk P, Molina A, Nademanee A, Parker P, Kogut N, Popplewell L, Vora N, Margolin K, Forman SJ. Reduced-intensity allogeneic stem cell transplantation for patients whose prior autologous stem cell transplantation for hematologic malignancy failed. Biol Blood Marrow Transplant 2003; 9:649-56. [PMID: 14569561 DOI: 10.1016/s1083-8791(03)00241-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
Autologous hematopoietic stem cell transplantation (autoSCT) is an effective treatment for patients with various hematologic malignancies. Despite the significant improvement in the overall outcome, disease progression after transplantation remains the major cause of treatment failure. With longer follow-up, therapy-related myelodysplasia/acute myelogenous leukemia is becoming an important cause of treatment failure. The prognosis for these 2 groups of patients is very poor. Allogeneic hematopoietic stem cell transplantation (alloSCT) is a potential curative treatment for these patients. However, the outcome with conventional myeloablative alloSCT after failed autoSCT is typically poor because of high transplant-related mortality. In an attempt to reduce the treatment-related toxicity, we studied a reduced-intensity conditioning regimen followed by alloSCT for patients with progressive disease or therapy-related myelodysplasia/acute myelogenous leukemia after autoSCT. This report describes the outcomes of 28 patients with hematologic malignancies who received a reduced-intensity alloSCT after having treatment failure with a conventional autoSCT. Fourteen patients received a hematopoietic stem cell transplant from a related donor and 14 from an unrelated donor. The conditioning regimen consisted of low-dose (2 Gy) total body irradiation with or without fludarabine in 4 patients and the combination of melphalan (140 mg/m(2)) and fludarabine in 24. Cyclosporine and mycophenolate mofetil were used for posttransplantation immunosuppressive therapy, as well as graft-versus-host disease (GVHD) prophylaxis, in all patients. All patients engrafted and had >90% donor chimerism on day 100 after SCT. Currently, 13 patients (46%) are alive and disease free, 7 patients (25%) developed disease progression after alloSCT, and 8 (32%) died of nonrelapse causes. Day 100 mortality and nonrelapse mortality were 25% and 21%, respectively. With a median follow-up of 24 months for surviving patients, the 2-year probabilities of overall survival, event-free survival, and relapse rates were 56.5%, 41%, and 41.9%, respectively. Six patients (21%) developed grade III to IV acute GVHD. Among 21 evaluable patients, 15 (67%) developed chronic GVHD. We conclude that (1) reduced-intensity alloSCT is feasible and has an acceptable toxicity profile in patients who have previously received autoSCT and that (2) although follow-up was short, a durable remission may be achieved in some patients who would otherwise be expected to have a poor outcome.
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Affiliation(s)
- H C Fung
- Division of Hematology and Bone Marrow Transplantation, Kaiser Permanente-City of Hope BMT Program, City of Hope Cancer Center, 1500 E. Duarte Road, Duarte, CA 91010, USA.
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176
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Gustafson G, Demanes D, Rodriguez R, Mitchell C, Ravanera R, Edmundson G, Martinez A. High dose rate (HDR) monotherapy for early stage prostate cancer: toxicity results utilizing the common toxicity criteria. Int J Radiat Oncol Biol Phys 2003. [DOI: 10.1016/s0360-3016(03)01053-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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177
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Watkins LM, Rodriguez R, Schneider D, Broderick R, Cruz M, Chambers R, Ruckman E, Cody M, Mrachko GT. Purification and characterization of the aromatic desulfinase, 2-(2'-hydroxyphenyl)benzenesulfinate desulfinase. Arch Biochem Biophys 2003; 415:14-23. [PMID: 12801508 DOI: 10.1016/s0003-9861(03)00230-3] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
2-(2(')-Hydroxyphenyl)benzenesulfinate desulfinase (HPBS desulfinase) catalyzes the cleavage of the carbon-sulfur bond of 2-(2(')-hydroxyphenyl)benzenesulfinate (HPBS) to form hydroxybiphenyl and sulfite. This is the final step in the desulfurization of dibenzothiophene, the organosulfur compound used to study biodesulfurization of petroleum middle distillate. HPBS desulfinase was purified 1600-fold from Rhodococcus IGTS8. The purification was monitored using a spectrofluorimetric assay and SDS-PAGE. The pI of HPBS desulfinase is 5.6, the temperature optimum is 35 degrees C, and the pH optimum is 7.0. HPBS desulfinase has a K(m) of 0.90+/-0.15 microM and a k(cat) of 1.3+/-0.07 min(-1). Several analogs were tested for their ability to act as substrates or inhibitors of HPBS desulfinase. No alternative substrates and very few inhibitors were identified. HPBS desulfinase activity decreases in the presence of Cu(2+) and Zn(2+), while no metals significantly enhance enzyme activity. HPBS desulfinase is susceptible to tyrosine, tryptophan, and cysteine specific modification agents.
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Affiliation(s)
- L M Watkins
- Department of Chemistry and Biochemistry, Southwest Texas State University, 601 University Dr., San Marcos, TX 78666, USA.
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178
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Rodriguez R, Andersen B. Cellular determination in the anterior pituitary gland: PIT-1 and PROP-1 mutations as causes of human combined pituitary hormone deficiency. MINERVA ENDOCRINOL 2003; 28:123-33. [PMID: 12717343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2023]
Abstract
In the anterior pituitary gland, five distinct hormone producing cell types are generated from common epithelial progenitor cells. This process of cellular determination is controlled by signaling molecules acting on transcription factors, which in turn regulate genes critical for the appearance of hormone producing cells. Two pituitary specific transcription factors, Pit-1 and Prop-1, which are required for generation of hormone producing cells in the anterior pituitary gland, have proved to be important in the cause of hypopituitarism in humans. Mutations in the human PIT-1 gene lead to a combined pituitary hormone deficiency characterized by lack of GH, PRL and TSH. Mutations in the PROP-1 gene, which are a more common cause of hypopituitarism, lead to a clinical phenotype characterized by GH, PRL, TSH, LH and FSH deficiency, and sometimes ACTH deficiency as well.
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Affiliation(s)
- R Rodriguez
- Department of Medicine, Division of Endocrinology, University of California, Irvine, CA 92697-4075, USA
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179
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Abstract
In this study, Titanium (Ti) surfaces were modified using anodization. The electrolyte used for anodization was a mixture of calcium glycerophosphate and calcium acetate. The anodized surfaces were divided into three groups. Hydrothermal treatments were performed on two of the anodized groups for either 2 or 4 h. In vitro osteoblast response to anodized oxide and the hydrothermal treated oxide after anodization was evaluated in this study. Calcium and phosphorus ions were deposited on the Ti oxide during anodization. Anodized surfaces following a 4-h hydrothermal treatment were observed to promote the growth apatite-like crystals as compared with anodized surfaces after a 2-h hydrothermal treatment. Cellular function and onset of mineralization, as indicated by protein production and osteocalcin production, respectively, also were observed as enhanced on hydrothermal-treated surfaces. It was thus concluded from this study that calcium phosphate and apatite-like crystals could be deposited on Ti surfaces using anodization and a combination of anodization and hydrothermal treatment. It was also concluded that the phenotypic expression of osteoblast was enhanced by the presence of calcium phosphate or apatite-like crystals on anodized or hydrothermally treated Ti surfaces.
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Affiliation(s)
- R Rodriguez
- Department of Prosthodontics, Wilford Hall Medical Center, 2250 Pepperell Street, Lackland AFB, Texas 78236, USA
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180
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Ganea D, Rodriguez R, Delgado M. Vasoactive intestinal peptide and pituitary adenylate cyclase-activating polypeptide: players in innate and adaptive immunity. Cell Mol Biol (Noisy-le-grand) 2003; 49:127-42. [PMID: 12887096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/04/2023]
Abstract
Recent reports identified and described neural pathways, both hard-wiring and soluble mediators, that control and adjust the peripheral immune response. Immune organs are innervated by fibers rich in neurotransmitters and neuropeptides released in inflammatory conditions. Here we focus on the immunomodulatory role of two peptides, the vasoactive intestinal peptide (VIP) and the pituitary adenylate cyclase-activating polypeptide (PACAP). VIP/PACAP are present and released from both innervation and immune cells, particularly Th2 cells, and immune cells express receptors for VIP/PACAP. VIP/PACAP have a general anti-inflammatory effect, both in innate and adaptive immunity. In innate immunity, VIP/PACAP inhibit the production of pro-inflammatory cytokines and chemokines from macrophages, microglia and dendritic cells. In addition, VIP/PACAP reduce the expression of costimulatory molecules (particularly CD80 and CD86) on the antigen-presenting cells, and therefore reduce stimulation of antigen-specific CD4+ T cells. In terms of adaptive immunity, VIP/PACAP promote Th2-type responses, and reduce the pro-inflammatory Th1-type responses. Several of the molecular mechanisms involved in the inhibition of cytokine and chemokine expression, and in the preferential development and/or survival of Th2 effects, are discussed.
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Affiliation(s)
- D Ganea
- Department of Biological Sciences, Rutgers University, 101 Warren St, Newark, NJ 07012, USA.
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181
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Rosen VM, Caplan L, Sheesley L, Rodriguez R, Grafman J. An examination of daily activities and their scripts across the adult lifespan. Behav Res Methods Instrum Comput 2003; 35:32-48. [PMID: 12723778 DOI: 10.3758/bf03195495] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
In two normative studies, we examined daily scripted activities from the perspective that scripts are frequency-based knowledge structures. In Study 1 individuals recorded their daily activities for 7 consecutive days. Fifteen activities that were reported with low, moderate, and high frequency were selected for Study 2, in which individuals generated a script for each activity. The 18 most frequently generated events from each script are reported, along with their centrality and distinctiveness rankings and the number of individuals reporting each event. Overall, the mean number of events generated increased with increasing script frequency, suggesting that script representations are subject to frequency effects. Also, we found a high level of consistency across the three age groups in the events generated in each script and in their corresponding rankings of centrality and distinctiveness. Finally, we found no evidence of age or gender bias in the frequency or recency of engaging in each of the scripted activities.
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Affiliation(s)
- V M Rosen
- Geriatric Psychiatry Branch, National Institute of Mental Health, Bethesda, Maryland 20892, USA.
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182
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Aguilar-Salinas CA, Arellano SA, Villanueva-Sanchez O, Magos GA, Guillén-Pineda LE, Rodriguez R, Gómez-Pérez FJ. Effects of omapatrilat on blood pressure and insulin sensitivity in an animal model of insulin resistance. Blood Press 2002; 10:164-9. [PMID: 11688764 DOI: 10.1080/080370501753182389] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Abstract
OBJECTIVE To assess the effects of omapatrilat, fosinopril and placebo on blood pressure, plasma insulin, glucose and triglycerides concentrations in Zucker rats, a model for insulin resistance. DESIGN Double blind, parallel, prospective trial. METHODS Forty-two male obese Zucker (falfa) rats (aged 13-18 week) initially weighing 400-600 g were used for the experiments. Omapatrilat (n = 14), placebo (n = 14) or fosinopril (n = 14) were administrated once daily at 10 micromol/kg oral for 15 days. At baseline and at the end of the study, a tail-cuff blood pressure measurement was performed; an oral glucose tolerance test was done at the end of the study. RESULTS Omapatrilat and fosinopril resulted in significant lower systolic blood pressure compared to the placebo group (p < 0.001). This parameter was significantly lower in the omapatrilat group compared with fosinopril-treated rats (116+/-9 vs 125+/-4 mmHg, p < 0.05). After an overnight fast, there was no difference in the fasting glucose concentrations among treatment groups. The basal and post-glucose challenge insulin concentrations were lower in the omapatrilat group compared to the placebo group. No difference was observed in the fasting triglycerides concentrations between the treatment groups. CONCLUSIONS Compared to placebo and fosinopril treatment, omapatrilat results in lower arterial blood pressure in an animal model of insulin resistance. The results suggest that omapatrilat may have a positive effect on insulin sensitivity.
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Affiliation(s)
- C A Aguilar-Salinas
- Departamento de Endocrinologia y Metabolismo, Unidad de Investigación Experimental, Instituto Nacional de la Nutrición, México City, México.
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183
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Rodriguez R. A new editor's view of nursing. Interview by Mary Jo Kreitzer. Creat Nurs 2002; 5:7-9. [PMID: 12149982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
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184
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van der Poel HG, Molenaar B, van Beusechem VW, Haisma HJ, Rodriguez R, Curiel DT, Gerritsen WR. Epidermal growth factor receptor targeting of replication competent adenovirus enhances cytotoxicity in bladder cancer. J Urol 2002. [PMID: 12050554 DOI: 10.1016/s0022-5347(05)64905-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
PURPOSE We evaluated the delivery and oncolytic potential of targeted replication competent adenoviruses in bladder cancer lines. MATERIALS AND METHODS Seven established human bladder cancer tumor lines (5637, SW800, TCCsup, J82, Scaber, T24 and 253J) were studied for the expression of integrins alpha(v)beta3, alpha(v)beta5, Coxsackievirus and adenovirus receptor, epidermal growth factor receptor (EGF-R) and epithelial cell adhesion molecule antigens using flow cytometry analysis. Bispecific single chain Fv fragments were used to target replication deficient luciferase reporter adenovirus to EGF-R (425-s11) or to epithelial cell adhesion molecule (C28-s11) antigens. Moreover, a fiber modified adenovirus targeting alpha(v)-integrins was studied. Replication competent serotype-5 adenoviruses attenuated to replicate specifically in retinoblastoma pRb (Ad5-d24) or p53 deficient (Ad5-d55K) cells were tested in vitro for oncolytic properties. RESULTS Low to absent Coxsackievirus and adenovirus receptor expression was found in 5 of the 7 tumor lines (SW800, J82, T24, 5637 and Scaber). EGF-R expression was found in all cell lines, whereas elevated epithelial cell adhesion molecule expression was seen in 3 (5637, Scaber and TCCsup), alpha(v)beta3-integrin was found in 1 (Scaber) and alpha(v)beta5-integrin was found in 3 (TCCsup, 253J and T24). EGF-R targeting using 425-s11 improved transgene expression in all cell lines from 2.1 to 12.5 times over nontargeted viruses. Epithelial cell adhesion molecule and integrin targeting was inferior to EGF-R targeting with a maximal increase in transgene expression of 2 times for epithelial cell adhesion molecule in 5637cells and 1.6 times for integrin targeting in T24 cells. Comparison of the wild-type replication competent virus with conditionally replicating adenoviruses (Ad5-d55K and Ad5-d24) showed superior oncolytic activity for the latter 2 in all lines. Furthermore, improved cytotoxicity (29% to 33%) was obtained in 4 of the 7 lines after pre-incubation of Ad5-d24 with 425-s11. CONCLUSIONS EGF-R directed bispecific single chain antibodies enhance adenovirus mediated transgene expression and oncolysis in bladder cancer lines.
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Affiliation(s)
- H G van der Poel
- Department of Urology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
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185
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van der Poel HG, Molenaar B, van Beusechem VW, Haisma HJ, Rodriguez R, Curiel DT, Gerritsen WR. Epidermal growth factor receptor targeting of replication competent adenovirus enhances cytotoxicity in bladder cancer. J Urol 2002; 168:266-72. [PMID: 12050554 DOI: 10.1097/00005392-200207000-00089] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
PURPOSE We evaluated the delivery and oncolytic potential of targeted replication competent adenoviruses in bladder cancer lines. MATERIALS AND METHODS Seven established human bladder cancer tumor lines (5637, SW800, TCCsup, J82, Scaber, T24 and 253J) were studied for the expression of integrins alpha(v)beta3, alpha(v)beta5, Coxsackievirus and adenovirus receptor, epidermal growth factor receptor (EGF-R) and epithelial cell adhesion molecule antigens using flow cytometry analysis. Bispecific single chain Fv fragments were used to target replication deficient luciferase reporter adenovirus to EGF-R (425-s11) or to epithelial cell adhesion molecule (C28-s11) antigens. Moreover, a fiber modified adenovirus targeting alpha(v)-integrins was studied. Replication competent serotype-5 adenoviruses attenuated to replicate specifically in retinoblastoma pRb (Ad5-d24) or p53 deficient (Ad5-d55K) cells were tested in vitro for oncolytic properties. RESULTS Low to absent Coxsackievirus and adenovirus receptor expression was found in 5 of the 7 tumor lines (SW800, J82, T24, 5637 and Scaber). EGF-R expression was found in all cell lines, whereas elevated epithelial cell adhesion molecule expression was seen in 3 (5637, Scaber and TCCsup), alpha(v)beta3-integrin was found in 1 (Scaber) and alpha(v)beta5-integrin was found in 3 (TCCsup, 253J and T24). EGF-R targeting using 425-s11 improved transgene expression in all cell lines from 2.1 to 12.5 times over nontargeted viruses. Epithelial cell adhesion molecule and integrin targeting was inferior to EGF-R targeting with a maximal increase in transgene expression of 2 times for epithelial cell adhesion molecule in 5637cells and 1.6 times for integrin targeting in T24 cells. Comparison of the wild-type replication competent virus with conditionally replicating adenoviruses (Ad5-d55K and Ad5-d24) showed superior oncolytic activity for the latter 2 in all lines. Furthermore, improved cytotoxicity (29% to 33%) was obtained in 4 of the 7 lines after pre-incubation of Ad5-d24 with 425-s11. CONCLUSIONS EGF-R directed bispecific single chain antibodies enhance adenovirus mediated transgene expression and oncolysis in bladder cancer lines.
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Affiliation(s)
- H G van der Poel
- Department of Urology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
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186
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187
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Silva JM, Rodriguez R, Garcia JM, Muñoz C, Silva J, Dominguez G, Provencio M, España P, Bonilla F. Detection of epithelial tumour RNA in the plasma of colon cancer patients is associated with advanced stages and circulating tumour cells. Gut 2002; 50:530-4. [PMID: 11889075 PMCID: PMC1773179 DOI: 10.1136/gut.50.4.530] [Citation(s) in RCA: 110] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
BACKGROUND Although circulating tumour DNA has been detected in patients with different types of cancer, little is known of free RNA in cancer patients. AIMS We investigated the presence of RNA from epithelial tumours in plasma from patients with colorectal carcinomas, and its correlation with tumour characteristics and circulating tumour cells. METHODS beta-actin mRNA was analysed to assess the viability of plasma RNA in samples from 53 patients with colonic cancer and 25 controls. Subsequently, nested primers were used to detect the presence of cytokeratin 19 (CK19) and carcinoembryonic antigen (CEA) RNA in the same samples. Nine clinicopathological parameters were studied to correlate the molecular and clinical parameters. Additionally, we investigated for micrometastases in blood in 18 of these patients and in 10 of the controls samples. RESULTS All samples had detectable quantities of beta-actin RNA. In the controls, one case (4%) was positive for CEA and five (20%) for CK19 RNA; of the 53 patients, 17 cases (32%) were positive for CEA and 39 (73.6%) for CK19 RNA. This was statistically significant (p=0.000001). Advanced stages (p=0.03) and soluble CEA status (p=0.03) were associated with the presence of CEA, CK19, or both RNAs in plasma. Lymph node metastases (p=0.06) and vascular invasion (p=0.07) were almost significant. On the basis of these results, we examined the possible presence of micrometastases in blood in several of these patients. The presence of plasma tumour RNA was found to be associated with circulating tumour cells in blood (p=0.04). CONCLUSIONS Epithelial tumour RNA is detectable in plasma from colon cancer patients. This molecular event is associated with advanced stages and circulating tumour cells. Our results could offer new approaches in the diagnosis and monitoring of colon cancer.
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Affiliation(s)
- J M Silva
- Department of Medical Oncology, Clinica Puerta de Hierro, 28035-Madrid, Spain
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188
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García-Morales I, Gómez-Escalonilla C, Galán L, Rodriguez R, Simón De Las Heras R, Mateos-Beato F. [Cerebral cavernomas in childhood. clinical presentation and diagnosis]. Rev Neurol 2002; 34:339-42. [PMID: 12022048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Abstract
INTRODUCTION Intracranial vascular malformations are congenital lesions due to alterations in the development of the arteriolocapillary network. Traditionally they are divided into four types according to their histological characteristics: arteriovenous malformations, cavernous angiomas or cavernomas, venous angiomas and telangectasias. The cavernomas are multilobulated lesions which are clearly delimited and contain blood at different stages of evolution. Histologically they are composed of sinusoidal spaces lined by endothelium and closely interlinked, without intervening nervous tissue. They are usually found at a supratentorial level, and less frequently in the posterior fossa. PATIENTS AND METHODS We made a retrospective review of the histories of 11 patients aged between 2 and 10 years, diagnosed as having intracranial cavernomas in which imaging techniques lead to the diagnosis of intracranial cavernoma. In two patients there were multiple cavernomas. We analysed the method of diagnosis and clinical features on presentation. RESULTS The clinical features were varied. In six patients the onset of the disorder was with epileptic seizures, three had progressive neurological deficits, one patient had headache and vomiting which progressed to coma and another had a history of non specific fainting and deficit. All but one of the cavernomas were supratentorial. CONCLUSIONS Cavernomas are a type of vascular malformation with specific histological features. The usual clinical features are convulsions and parenchymatous bleeding. They are generally supratentorial. The appearance of MR has permitted diagnosis of asymptomatic cavernomas and is currently considered to be the technique of choice for diagnosis.
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Affiliation(s)
- I García-Morales
- Servicio de Neurolopediatría, Hospital 12 de Octubre, Madrid, España.
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189
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Sáez-Vergara JC, Romero AM, Vila Pena M, Rodriguez R, Muñiz JL. The use of passive environmental TLDs in the operation of the Spanish early warning network 'REVIRA'. Radiat Prot Dosimetry 2002; 101:249-252. [PMID: 12382745 DOI: 10.1093/oxfordjournals.rpd.a005978] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
As required by different international agreements, the regulatory body in Spain (Consejo de Seguridad Nuclear) implemented in 1992 a national automatic network (REVIRA) that continuously monitors radiation levels in order to give early warning of incidents having potential transboundary implications. The detector for environmental gamma-radiation dose rate is an active instrument based on a Geiger-Müller counter. However, the use of passive environmental dosemeters provides an additional low-cost dose estimate with an independent centralised calibration and even better basic features than active instruments. Since 1999, all 25 REVIRA stations have been monitored with passive TL environmental dosemeters based on LiF:Mg,Cu,P and operated according to the procedures established at Ciemat. This paper presents the obtained results and the further analysis considering differences in aspects such as photon energy response, inherent background or response to cosmic rays. The benefits of the use of passive environmental dosemeters in early warning networks are discussed.
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190
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Rodriguez R, Nava R, Martinez Z, Del Valle A, Martinez-Madrid M, Castano VM. A Novel Approach for Coating Acrylic Surfaces with Zirconia at Low Temperature. INT J POLYM MATER PO 2002. [DOI: 10.1080/00914030213024] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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191
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Hsu D, Lamour J, Korsin R, Mital S, Nova J, Rodriguez R, Addonizio L. Long term incidence of graft vasculopathy in children. J Heart Lung Transplant 2002. [DOI: 10.1016/s1053-2498(01)00763-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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192
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Ledesma A, Villalba M, Vivanco F, Rodriguez R. Olive pollen allergen Ole e 8: identification in mature pollen and presence of Ole e 8-like proteins in different pollens. Allergy 2002. [DOI: 10.1034/j.1398-9995.2002.13174.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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193
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Rodriguez R, Matsuda M, Perisic O, Bravo J, Paul A, Jones NP, Light Y, Swann K, Williams RL, Katan M. Tyrosine residues in phospholipase Cgamma 2 essential for the enzyme function in B-cell signaling. J Biol Chem 2001; 276:47982-92. [PMID: 11606584 DOI: 10.1074/jbc.m107577200] [Citation(s) in RCA: 64] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Phospholipase Cgamma (PLCgamma) isoforms are regulated through activation of tyrosine kinase-linked receptors. The importance of growth factor-stimulated phosphorylation of specific tyrosine residues has been documented for PLCgamma1; however, despite the critical importance of PLCgamma2 in B-cell signal transduction, neither the tyrosine kinase(s) that directly phosphorylate PLCgamma2 nor the sites in PLCgamma2 that become phosphorylated after stimulation are known. By measuring the ability of human PLCgamma2 to restore calcium responses to the B-cell receptor stimulation or oxidative stress in a B-cell line (DT40) deficient in PLCgamma2, we have demonstrated that two tyrosine residues, Tyr(753) and Tyr(759), were important for the PLCgamma2 signaling function. Furthermore, the double mutation Y753F/Y759F in PLCgamma2 resulted in a loss of tyrosine phosphorylation in stimulated DT40 cells. Of the two kinases that previously have been proposed to phosphorylate PLCgamma2, Btk, and Syk, purified Btk had much greater ability to phosphorylate recombinant PLCgamma2 in vitro, whereas Syk efficiently phosphorylated adapter protein BLNK. Using purified proteins to analyze the formation of complexes, we suggest that function of Syk is to phosphorylate BLNK, providing binding sites for PLCgamma2. Further analysis of PLCgamma2 tyrosine residues phosphorylated by Btk and several kinases from the Src family has suggested multiple sites of phosphorylation and, in the context of a peptide incorporating residues Tyr(753) and Tyr(759), shown preferential phosphorylation of Tyr(753).
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Affiliation(s)
- R Rodriguez
- Cancer Research Campaign Centre for Cell and Molecular Biology, Chester Beatty Laboratories, the Institute of Cancer Research, Fulham Rd., London SW3 6JB, United Kingdom
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194
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Maestú F, Fernández A, Simos PG, Gil-Gregorio P, Amo C, Rodriguez R, Arrazola J, Ortiz T. Spatio-temporal patterns of brain magnetic activity during a memory task in Alzheimer's disease. Neuroreport 2001; 12:3917-22. [PMID: 11742211 DOI: 10.1097/00001756-200112210-00013] [Citation(s) in RCA: 44] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
The brain magnetic activity patterns in a high load probe-letter (targets and distractors) memory task were examined in patients with Alzheimers's disease (AD) and elderly controls. Control subjects showed a higher number of activity sources over the temporal and parietal cortex between 400 and 700 ms after stimulus onset. However, AD patients showed a higher number of sources over the frontal motor areas, including Broca's and the insula. The number of activity sources on the left parietal areas in response to the target stimuli predicted the AD score oncognitive (MMSE, CAMCOG) and functional staging (FAST) scales. These results suggest that a high information load reveals a deficient functioning of phonological store and reduced task-related activity in temporal and parietal areas, manifesting in a rapid information trace decay. The increased levels of activity in motor areas may reflect a compensatory strategy in an attempt to facilitate rehearsal speed.
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Affiliation(s)
- F Maestú
- Magnetoencephalography Center Dr Pérez Modrego, Pabellón no 8 Facultad de Medicina, Department of Basic Psychology II (Cognitive processes), Faculty of Psychology, Universidad Complutense Madrid, 28040 Madrid, Spain
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195
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Esteller M, Fraga MF, Guo M, Garcia-Foncillas J, Hedenfalk I, Godwin AK, Trojan J, Vaurs-Barrière C, Bignon YJ, Ramus S, Benitez J, Caldes T, Akiyama Y, Yuasa Y, Launonen V, Canal MJ, Rodriguez R, Capella G, Peinado MA, Borg A, Aaltonen LA, Ponder BA, Baylin SB, Herman JG. DNA methylation patterns in hereditary human cancers mimic sporadic tumorigenesis. Hum Mol Genet 2001; 10:3001-7. [PMID: 11751682 DOI: 10.1093/hmg/10.26.3001] [Citation(s) in RCA: 284] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Cancer cells have aberrant patterns of DNA methylation including hypermethylation of gene promoter CpG islands and global demethylation of the genome. Genes that cause familial cancer, as well as other genes, can be silenced by promoter hypermethylation in sporadic tumors, but the methylation of these genes in tumors from kindreds with inherited cancer syndromes has not been well characterized. Here, we examine CpG island methylation of 10 genes (hMLH1, BRCA1, APC, LKB1, CDH1, p16(INK4a), p14(ARF), MGMT, GSTP1 and RARbeta2) and 5-methylcytosine DNA content, in inherited (n = 342) and non-inherited (n = 215) breast and colorectal cancers. Our results show that singly retained alleles of germline mutated genes are never hypermethylated in inherited tumors. However, this epigenetic change is a frequent second "hit", associated with the wild-type copy of these genes in inherited tumors where both alleles are retained. Global hypomethylation was similar between sporadic and hereditary cases, but distinct differences existed in patterns of methylation at non-familial genes. This study demonstrates that hereditary cancers "mimic" the DNA methylation patterns present in the sporadic tumors.
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Affiliation(s)
- M Esteller
- The Johns Hopkins Oncology Center, 1650 Orleans Street, Baltimore, MD 21231, USA
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Montero C, Mateu G, Rodriguez R, Takiff H. Intrinsic resistance of Mycobacterium smegmatis to fluoroquinolones may be influenced by new pentapeptide protein MfpA. Antimicrob Agents Chemother 2001; 45:3387-92. [PMID: 11709313 PMCID: PMC90842 DOI: 10.1128/aac.45.12.3387-3392.2001] [Citation(s) in RCA: 94] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The fluoroquinolones (FQ) are used in the treatment of Mycobacterium tuberculosis, but the development of resistance could limit their effectiveness. FQ resistance (FQ(R)) is a multistep process involving alterations in the type II topoisomerases and perhaps in the regulation of efflux pumps, but several of the steps remain unidentified. Recombinant plasmid pGADIV was selected from a genomic library of wild-type (WT), FQ-sensitive M. smegmatis by its ability to confer low-level resistance to sparfloxacin (SPX). In WT M. smegmatis, pGADIV increased the MICs of ciprofloxacin (CIP) by fourfold and of SPX by eightfold, and in M. bovis BCG it increased the MICs of both CIP and SPX by fourfold. It had no effect on the accumulation of (14)C-labeled CIP or SPX. The open reading frame responsible for the increase in FQ(R), mfpA, encodes a putative protein belonging to the family of pentapeptides, in which almost every fifth amino acid is either leucine or phenylalanine. Very similar proteins are also present in M. tuberculosis and M. avium. The MICs of CIP and SPX were lower for an M. smegmatis mutant strain lacking an intact mfpA gene than for the WT strain, suggesting that, by some unknown mechanism, the gene product plays a role in determining the innate level of FQ(R) in M. smegmatis.
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Affiliation(s)
- C Montero
- Laboratorio de Genética Molecular, Centro de Microbiología y Biología Celular, Instituto de Investigaciones Cientificas (IVIC), Caracas 1020A, Venezuela
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Lee DJ, Trapido E, Weatherby N, Rodriguez R. Correlates of participation and willingness to participate in anti-tobacco activities among 4th-7th graders. J Community Health 2001; 26:447-57. [PMID: 11759095 DOI: 10.1023/a:1012559307854] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
The purpose of this study was to identify factors associated with participation and willingness to participate in anti-tobacco community activities in 4-7th grade students. A probability sample was drawn from seven regions in Florida (n = 1219). Telephone interviews assessed socioeconomic status, tobacco use, knowledge, and attitudes, and exposure to anti-tobacco school education and media campaigns. Factors related to both participation and willingness included: parental discussion of tobacco use, exposure to school courses with anti-tobacco curricula and a belief that youth could convince their friends to stop smoking. Additional participation correlates included: parental smoking status and student government activity participation. Additional willingness correlates included: exposure to anti-tobacco television campaigns, liking school, and several tobacco-related knowledge and attitudinal questions. These findings suggest that exposure to community-based tobacco control programs and family discussion of tobacco use is associated with regular participation and/or willingness of youth to participate in anti-tobacco activities.
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Affiliation(s)
- D J Lee
- Department of Epidemiology & Public Health, University of Miami School of Medicine, FL 33101, USA
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199
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Affiliation(s)
- R Rodriguez
- Department of Emergency Medicine Highland General Hospital 1411 E 31st St Oakland, CA 94602, USA.
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200
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van der Poel HG, McCadden J, Verhaegh GW, Kruszewski M, Ferrer F, Schalken JA, Carducci M, Rodriguez R. A novel method for the determination of basal gene expression of tissue-specific promoters: an analysis of prostate-specific promoters. Cancer Gene Ther 2001; 8:927-35. [PMID: 11781655 DOI: 10.1038/sj.cgt.7700385] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2001] [Indexed: 11/09/2022]
Abstract
Because the toxicity of suicide gene therapeutics is directly related to basal promoter activity, we developed an assay to test for promoter "leakiness" using a diphtheria toxin mutant. Sequences of 15 prostate-specific gene promoter constructs were cloned in an expression plasmid (pBK; Stratagene, La Jolla, CA) backbone driving expression of an attenuated mutant of diphtheria toxin A (tox176). Low expression levels of the DT-tox176 result in significant protein synthesis inhibition reflected by a decreased expression of the luciferase activity of a simultaneously transfected CMV luciferase construct. ID50 (dose of plasmid with 50% luciferase inhibition) was calculated for each promoter construct in different cell lines. Highest transactivational activity (ID50 <75 ng) was found for the CMV promoter in all cell lines, which is in agreement with the dual luciferase assay findings. Unlike the dual luciferase findings, however, the DT-tox176 assay showed protein inhibition of CN65 (PSA promoter/enhancer) and PSE-hK2 (PSA enhancer and basal human kallikrein 2 promoter) in HEK293 and DLD cells indicating "leakiness" of these promoter constructs. Low basal promoter activity in nonprostate cell lines was found for the minimal PSA promoter, hK2, DD3, and OC promoters. The DT-tox176 assay can better predict basal promoter activity compared to less sensitive dual luciferase assay.
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Affiliation(s)
- H G van der Poel
- Brady Urologic Institute, Johns Hopkins Medical School, Baltimore, Maryland 21287, USA
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