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Long Depaquit T, Campagna J, Bastide C, Baboudjian M, Corral R, Uleri A, Toledano H. Salvage high-intensity focused ultrasound (S-HIFU) for recurrence after primary radiotherapy of prostate cancer. Fr J Urol 2024; 34:102633. [PMID: 38547931 DOI: 10.1016/j.fjurol.2024.102633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2023] [Revised: 03/04/2024] [Accepted: 03/22/2024] [Indexed: 04/13/2024]
Abstract
OBJECTIVES To evaluate functional and oncological outcomes of salvage high-intensity focal ultrasound (S-HIFU) after external beam radiotherapy (EBRT) failure in prostate cancer (PCa) patients. METHODS This single-center study included patients who underwent S-HIFU for local recurrence after EBRT between 2006 and 2023. Cancer-specific survival, metastasis-free survival and progression-free survival were illustrated using Kaplan-Meier curves. Disease progression was defined by one of the following criteria: increase of 2ng/mL or more above the PSA nadir, positive post-S-HIFU biopsy or initiation of androgen deprivation therapy (ADT). Multivariable Cox proportional hazards model was used to identify predictors of disease progression after S-HIFU. RESULTS A total of 52 S-HIFU sessions for 48 patients were performed. Median time between EBRT and S-HIFU was 6.5 years. Median PSA before S-HIFU was 3.2ng/mL and median PSA nadir after S-HIFU was 0.58ng/mL. A total of 39 (81.3%) complications was recorded, including 3 (6.3%) high grade complications according to the Clavien-Dindo classification. After a median follow-up period of 6 years, 14 (29.2%) patients developed metastatic disease. Eighteen (37.5%) patients had no recurrence, whereas 30 (62.5%) patients received ADT for disease progression. The estimated 5-yr cancer-specific survival (CSS), metastasis-free survival (MFS) and progression-free survival rates (PFSR) were 100%, 79.9% (95% CI 67-92) and 41.2% (95% CI 74-96), respectively. The estimated 10-yr CSS, MFS and PFSR were 80% (95% CI 45-100), 50.7% (95% CI 19.4-82.1) and 14% (95% CI 10.8-45), respectively. The hazard of progression increased with the intermediate (HR 3.8; 95% CI 0.99 to 15; p=0.049) and high pre-EBRT d'Amico-s risk group (HR 4.1; 95% CI 0.98 to 16.2; p=0.050). Also, the time between EBRT and S-HIFU was significantly associated with risk of progression (HR 0.61; 95% CI 0.43 to 0.86; p=0.004). No significant difference linked to the disease progression (DP) risk was found between focal vs whole-gland treatment (p=0.70). CONCLUSION Physicians should consider HIFU as a local salvage treatment after failed EBRT, thus avoiding or delaying palliative androgen deprivation therapy. Further studies are needed to improve patient selection for this therapy. LEVEL OF EVIDENCE: 4
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Affiliation(s)
- Thibaut Long Depaquit
- Department of Urology, HIA Sainte-Anne, Toulon, France; Department of Urology, North Hospital, AP-HM, Marseille, France.
| | | | - Cyrille Bastide
- Department of Urology, North Hospital, AP-HM, Marseille, France
| | | | - Renaud Corral
- Department of Urology, HIA Sainte-Anne, Toulon, France; Department of Urology, North Hospital, AP-HM, Marseille, France; Department of Urology, Martigues Hospital, Martigues, France
| | | | - Harry Toledano
- Department of Urology, North Hospital, AP-HM, Marseille, France; Department of Urology, Martigues Hospital, Martigues, France
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Corral R, Boissier R, Depaquit TL, Gondran-Tellier B, Bastide C, Lechevallier E, Baboudjian M. Saline bladder infusion vs standard catheter removal in patients with acute urinary retention related to benign prostatic hyperplasia: The BLAPERF Study. Prog Urol 2023; 33:319-324. [PMID: 36842924 DOI: 10.1016/j.purol.2023.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 10/19/2022] [Accepted: 02/10/2023] [Indexed: 02/28/2023]
Abstract
PURPOSE Bladder infusion, which involves filling the bladder with saline prior to catheter removal, has been associated with reduced time-to-discharge and increased success rates in trials without catheter (TWOCs) in perioperative setting. The objective of this study was to evaluate the applicability of this protocol in patients with acute urinary retention (AUR) related to benign prostatic hyperplasia (BPH). METHODS We conducted a retrospective single-center study comparing bladder infusion with at least 150mL of warm saline vs. standard catheter removal during TWOC in patients with BPH-related AUR between January and December 2021. The primary outcome was time to discharge. Secondary outcomes included: TWOC success, and early recurrence of urinary retention defined as recurrence within three months of successful TWOC. RESULTS A total of 75 men were included: 35 in the bladder infusion protocol and 40 in the standard protocol. Baseline characteristics were well balanced between groups. Overall, 35 patients (46.7%) had a successful TWOC without statistically significant difference between groups (P=0.10). Bladder infusion protocol was associated with a shorter median time to discharge (200 vs. 240min, P=0.003). However, patients in the bladder infusion group were associated with a higher risk of early recurrence of urinary retention (30% vs. 0%, P=0.02). CONCLUSION In patients with BPH-related AUR, the saline bladder infusion method reduced time-to-discharge with similar TWOC success rates. Larger studies are needed to properly analyze the risk of early recurrence of urinary retention before any clinical application. LEVEL OF EVIDENCE III.
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Affiliation(s)
- R Corral
- Department of Urology, La Conception Hospital, Assistance publique-Hôpitaux de Marseille (AP-HM), Marseille, France
| | - R Boissier
- Department of Urology, La Conception Hospital, Assistance publique-Hôpitaux de Marseille (AP-HM), Marseille, France
| | - T L Depaquit
- Department of Urology, La Conception Hospital, Assistance publique-Hôpitaux de Marseille (AP-HM), Marseille, France
| | - B Gondran-Tellier
- Department of Urology, La Conception Hospital, Assistance publique-Hôpitaux de Marseille (AP-HM), Marseille, France
| | - C Bastide
- Department of Urology, North Hospital, Assistance publique-Hôpitaux de Marseille (AP-HM), Marseille, France
| | - E Lechevallier
- Department of Urology, La Conception Hospital, Assistance publique-Hôpitaux de Marseille (AP-HM), Marseille, France
| | - M Baboudjian
- Department of Urology, La Conception Hospital, Assistance publique-Hôpitaux de Marseille (AP-HM), Marseille, France; Department of Urology, North Hospital, Assistance publique-Hôpitaux de Marseille (AP-HM), Marseille, France.
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Olmo Conesa MC, Lopez Cuenca D, Hernandez Del Rincon JP, Pastor Quirante F, Corral R, Sabater Molina M, Santos Mateo JJ, Perez Sanchez I, Martin J, Navarro Penalver M, Munoz Esparza C, Nicolas Rocamora E, Gimeno Blanes JR. 144Trends in prevented sudden death in cardiomyopathies and channelopathies. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy564.144] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- M C Olmo Conesa
- Hospital Clínico Univeristario Virgen de la Arrixaca, Cardiologia, Murcia, Spain
| | - D Lopez Cuenca
- Hospital Clínico Univeristario Virgen de la Arrixaca, Cardiologia, Murcia, Spain
| | | | - F Pastor Quirante
- Institute of Legal Medicine., Institute of Legal Medicine., Murcia, Spain
| | - R Corral
- Hospital Clínico Univeristario Virgen de la Arrixaca, Cardiologia, Murcia, Spain
| | - M Sabater Molina
- Hospital Clínico Univeristario Virgen de la Arrixaca, Cardiologia, Murcia, Spain
| | - J J Santos Mateo
- Hospital Clínico Univeristario Virgen de la Arrixaca, Cardiologia, Murcia, Spain
| | - I Perez Sanchez
- Hospital Clínico Univeristario Virgen de la Arrixaca, Cardiologia, Murcia, Spain
| | - J Martin
- Hospital Clínico Univeristario Virgen de la Arrixaca, Cardiologia, Murcia, Spain
| | - M Navarro Penalver
- Hospital Clínico Univeristario Virgen de la Arrixaca, Cardiologia, Murcia, Spain
| | - C Munoz Esparza
- Hospital Clínico Univeristario Virgen de la Arrixaca, Cardiologia, Murcia, Spain
| | - E Nicolas Rocamora
- Hospital Clínico Univeristario Virgen de la Arrixaca, Cardiologia, Murcia, Spain
| | - J R Gimeno Blanes
- Hospital Clínico Univeristario Virgen de la Arrixaca, Cardiologia, Murcia, Spain
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4
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Aragón F, Zea-Sevilla MA, Montero J, Sancho P, Corral R, Tejedor C, Frades-Payo B, Paredes-Gallardo V, Albaladejo A. Oral health in Alzheimer's disease: a multicenter case-control study. Clin Oral Investig 2018; 22:3061-3070. [PMID: 29476334 DOI: 10.1007/s00784-018-2396-z] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Accepted: 02/16/2018] [Indexed: 02/03/2023]
Abstract
OBJECTIVES The aim of this case-control study was to carry out an oral health assessment on a group of Alzheimer's patients and to establish a hypothesis regarding the implication of the characteristics of the disease and the treatment of oral health. MATERIALS AND METHODS A total of 70 Alzheimer's patients, residents at the Alzheimer Center Reina Sofia Foundation (Madrid, Spain) and at the Alzheimer State Reference Center (Salamanca, Spain), and 36 controls (companions/acquaintances), were studied by oral examination and saliva sampling. The oral health indices DMFT/DMFS, CPI, the prosthetic condition, oral hygiene, saliva volume, and pH, as well as the specific microbiological parameters governing the risk of developing caries were assessed. RESULTS Alzheimer's patients exhibited, as compared to the control group, (1) fewer teeth (10.9 ± 10.5 vs 23.7 ± 6.5), (2) fewer obturations (2.2 ± 3.4 vs 6.6 ± 5.6), (3) fewer periodontally healthy sextants (0.1 ± 0.4 vs 1.4 ± 2.2), (4) worse oral hygiene (43.1 vs 72.2% brushed), (5) greater use of removable prostheses (47.8 vs 8.4%), (6) higher incidence of candida infection (11.8 vs 0.0%) and cheilitis (15.9 vs 0.0%), (7) lower salivary flow (0.6 ± 0.6 vs 1.1 ± 0.6), and (8) lower buffering capacity (46 vs 80%). CONCLUSIONS After taking into account the influence of age, Alzheimer's patients had worse oral health (caries and periodontal disease), more mucosal lesions (cheilitis and candidiasis), and worse saliva quantity and quality. CLINICAL RELEVANCE Clinicians should be aware of the implications of Alzheimer's disease in oral health, in order to stablish the effective preventive measures and the optimal treatment plan.
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Affiliation(s)
- F Aragón
- Department of Surgery, Faculty of Medicine and Dentistry, University of Salamanca, Campus Miguel de Unamuno, Calle Alfonso X El Sabio s/n, 37007, Salamanca, Spain.
| | - M A Zea-Sevilla
- Alzheimer Disease Research Unit, CIEN Foundation, Alzheimer Center Reina Sofia Foundation, Carlos III Institute of Health, Calle de Valderrebollo, 5, PC 28031, Madrid, Spain
| | - J Montero
- Department of Surgery, Faculty of Medicine and Dentistry, University of Salamanca, Campus Miguel de Unamuno, Calle Alfonso X El Sabio s/n, 37007, Salamanca, Spain
| | - P Sancho
- Department of Microbiology and Genetics, University of Salamanca, Campus Miguel de Unamuno, PC 37007, Salamanca, Spain
| | - R Corral
- Department of Microbiology and Genetics, University of Salamanca, Campus Miguel de Unamuno, PC 37007, Salamanca, Spain
| | - C Tejedor
- Department of Microbiology and Genetics, University of Salamanca, Campus Miguel de Unamuno, PC 37007, Salamanca, Spain
| | - B Frades-Payo
- Alzheimer Disease Research Unit, CIEN Foundation, Alzheimer Center Reina Sofia Foundation, Carlos III Institute of Health, Calle de Valderrebollo, 5, PC 28031, Madrid, Spain
| | - V Paredes-Gallardo
- Department of Stomatology, Faculty of Medicine and Dentistry, University of Valencia, Av. de Blasco Ibáñez, 15, PC 46010, Valencia, Spain
| | - A Albaladejo
- Department of Surgery, Faculty of Medicine and Dentistry, University of Salamanca, Campus Miguel de Unamuno, Calle Alfonso X El Sabio s/n, 37007, Salamanca, Spain
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Alcoceba M, Jiménez C, Alonso-Álvarez S, Ordóñez G, García-Álvarez M, Prieto-Conde M, Chillón M, Balanzategui A, Corral R, Marín L, Gutiérrez N, Puig N, Sarasquete M, González M, García-Sanz R. Whole-exome analysis of abnormalities leading to Waldenström's macroglobulinemia transformation into aggressive lymphoma. Hematol Oncol 2017. [DOI: 10.1002/hon.2439_10] [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: 11/06/2022]
Affiliation(s)
- M. Alcoceba
- Hematology; Hospital Universitario de Salamanca; Salamanca Spain
| | - C. Jiménez
- Hematology; Hospital Universitario de Salamanca; Salamanca Spain
| | | | | | | | | | - M.C. Chillón
- Hematology; Hospital Universitario de Salamanca; Salamanca Spain
| | - A. Balanzategui
- Hematology; Hospital Universitario de Salamanca; Salamanca Spain
| | - R. Corral
- Hematology; Hospital Universitario de Salamanca; Salamanca Spain
| | - L.A. Marín
- Hematology; Hospital Universitario de Salamanca; Salamanca Spain
| | - N.C. Gutiérrez
- Hematology; Hospital Universitario de Salamanca; Salamanca Spain
| | - N. Puig
- Hematology; Hospital Universitario de Salamanca; Salamanca Spain
| | - M.E. Sarasquete
- Hematology; Hospital Universitario de Salamanca; Salamanca Spain
| | - M. González
- Hematology; Hospital Universitario de Salamanca; Salamanca Spain
| | - R. García-Sanz
- Hematology; Hospital Universitario de Salamanca; Salamanca Spain
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6
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Puig N, Conde I, Jiménez C, Sarasquete ME, Balanzategui A, Alcoceba M, Quintero J, Chillón MC, Sebastián E, Corral R, Marín L, Gutiérrez NC, Mateos MV, González-Díaz M, San-Miguel JF, García-Sanz R. The predominant myeloma clone at diagnosis, CDR3 defined, is constantly detectable across all stages of disease evolution. Leukemia 2015; 29:1435-7. [DOI: 10.1038/leu.2015.7] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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7
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Wonni I, Cottyn B, Detemmerman L, Dao S, Ouedraogo L, Sarra S, Tekete C, Poussier S, Corral R, Triplett L, Koita O, Koebnik R, Leach J, Szurek B, Maes M, Verdier V. Analysis of Xanthomonas oryzae pv. oryzicola population in Mali and Burkina Faso reveals a high level of genetic and pathogenic diversity. Phytopathology 2014; 104:520-31. [PMID: 24199713 DOI: 10.1094/phyto-07-13-0213-r] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Bacterial leaf streak (BLS) caused by Xanthomonas oryzae pv. oryzicola was first reported in Africa in the 1980s. Recently, a substantial reemergence of this disease was observed in West Africa. Samples were collected at various sites in five and three different rice-growing regions of Burkina Faso and Mali, respectively. Sixty-seven X. oryzae pv. oryzicola strains were isolated from cultivated and wild rice varieties and from weeds showing BLS symptoms. X. oryzae pv. oryzicola strains were evaluated for virulence on rice and showed high variation in lesion length on a susceptible cultivar. X. oryzae pv. oryzicola strains were further characterized by multilocus sequence analysis (MLSA) using six housekeeping genes. Inferred dendrograms clearly indicated different groups among X. oryzae pv. oryzicola strains. Restriction fragment length polymorphism analysis using the transcriptional activator like effector avrXa7 as probe resulted in the identification of 18 haplotypes. Polymerase chain reaction-based analyses of two conserved type III effector (T3E) genes (xopAJ and xopW) differentiated the strains into distinct groups, with xopAJ not detected in most African X. oryzae pv. oryzicola strains. XopAJ functionality was confirmed by leaf infiltration on 'Kitaake' rice Rxo1 lines. Sequence analysis of xopW revealed four groups among X. oryzae pv. oryzicola strains. Distribution of 43 T3E genes shows variation in a subset of X. oryzae pv. oryzicola strains. Together, our results show that African X. oryzae pv. oryzicola strains are diverse and rapidly evolving, with a group endemic to Africa and another one that may have evolved from an Asian strain.
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Alcoceba M, Marín L, Balanzategui A, Sarasquete ME, Chillón MC, Martín-Jiménez P, Puig N, Santamaría C, Corral R, García-Sanz R, San Miguel JF, González M. Frequency of HLA-A, -B and -DRB1 specificities and haplotypic associations in the population of Castilla y León (northwest-central Spain). ACTA ACUST UNITED AC 2012; 78:249-55. [PMID: 21929573 DOI: 10.1111/j.1399-0039.2011.01766.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The frequencies of human leukocyte antigen (HLA) class I and class II specificities and haplotypic associations were determined in 1940 unrelated donors from Castilla y León and compared with other Iberian, Mediterranean and European populations. Specificities were determined using polymerase chain reaction reverse sequence-specific oligonucleotide or polymerase chain reaction sequence-specific primer techniques. In the analysis, 19, 29 and 13 specificities were found for HLA-A, -B and -DRB1, respectively, with HLA-A*02 (26%), -A*01 (11%), -B*44 (16%), -B*35 (10%), -DRB1*07 (16%) and -DRB1*13 (14%) showing the highest frequencies. In addition, 10 common HLA-A-B-DRB1 haplotypic associations were observed, A*01-B*08-DRB1*03 (3%) and A*29-B*44-DRB1*07 (3%) being the most frequent ones. These findings indicate that the population of Castilla y León is genetically equidistant from the Portuguese and other Spanish populations and shares a common origin with other Iberian populations, in which European, Mediterranean and North African genetic components are present; this is in agreement with the historical and genetic background of the population. These data contribute to a better understanding of the genetic structure of the Iberian Peninsula and provide a healthy control population from our region that should be useful for the study of disease associations.
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Affiliation(s)
- M Alcoceba
- Laboratorio de Biología Molecular/HLA, Servicio de Hematología, Hospital Universitario de Salamanca, Salamanca, Spain
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9
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Alcoceba M, Marín L, Balanzategui A, Sarasquete ME, Martín-Jiménez P, Chillón MC, Corral R, Pérez-Persona E, Fernández-Calvo FJ, Hernández JM, Bladé J, Lahuerta JJ, González M, San Miguel JF, García-Sanz R. The presence of DRB1*01 allele in multiple myeloma patients is associated with an indolent disease. ACTA ACUST UNITED AC 2008; 71:548-51. [DOI: 10.1111/j.1399-0039.2008.01048.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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10
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Segura-Velázquez R, Pérez-Torres A, Rosas G, Toledo A, Restelli M, Acosta E, Corral R, Rosetti F, Fragoso G, Grinstein S, Sciutto E. A novel synthetic adjuvant effectively enhances the immunogenicity of the influenza vaccine. Vaccine 2006; 24:1073-80. [PMID: 16202486 DOI: 10.1016/j.vaccine.2005.09.014] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2005] [Revised: 08/25/2005] [Accepted: 09/05/2005] [Indexed: 11/20/2022]
Abstract
Influenza vaccination is a key intervention to reduce morbidity and mortality provoked by this disease. To date, the challenge of improving its efficacy remains unmet. The immunogenic synthetic peptide GK1 from Taenia crassiceps cysticerci was tested herein in its capacity as adjuvant, co-administered with the inactivated anti-influenza vaccine before and after challenge with influenza virus in both young and aged mice. Co-administration of GK1 with the influenza vaccine increased levels of anti-influenza antibodies in aged mice before and after infection, reduced the local inflammation that accompanied influenza vaccination itself and favored virus clearance after infection in both young and aged mice.
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Affiliation(s)
- R Segura-Velázquez
- Instituto de Investigaciones Biomédicas, A.P. 70228, Ciudad Universitaria, 04510 México, D.F., México
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11
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Jackson SN, Pinkney J, Bargiotta A, Veal CD, Howlett TA, McNally PG, Corral R, Johnson A, Trembath RC. A defect in the regional deposition of adipose tissue (partial lipodystrophy) is encoded by a gene at chromosome 1q. Am J Hum Genet 1998; 63:534-40. [PMID: 9683602 PMCID: PMC1377312 DOI: 10.1086/301971] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.5] [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: 11/04/2022] Open
Abstract
Partial lipodystrophy (PLD), also known as "Dunnigan-Kobberling syndrome," is transmitted as a highly penetrant autosomal dominant disorder that is characterized by a dramatic absence of adipose tissue in the limbs and trunk, more evident in females than in males. In contrast, fat is retained on the face, in retro-orbital space, and at periserous sites. Associated metabolic abnormalities, including insulin resistance, hyperinsulinemia, and dyslipidemia, are referred to as "metabolic syndrome X" (Reaven 1988). Despite the intense interest in the genetic determinants underlying fat deposition, the genes involved in the lipodystrophic syndromes have not been identified. We ascertained two multigeneration families, with a combined total of 18 individuals with PLD, and performed a genomewide search. We obtained conclusive evidence for linkage of the PLD locus to microsatellite markers on chromosome 1q21 (D1S498, maximum LOD score 6.89 at recombination fraction .00), with no evidence of heterogeneity. Haplotype and multipoint analysis support the location of the PLD locus within a 21.2-cM chromosomal region that is flanked by the markers D1S2881 and D1S484. These data represent an important step in the effort to isolate and characterize the PLD gene. The identification of the gene will have important implications for the understanding of both developmental and metabolic aspects of the adipocyte and may prove useful as a single-gene model for the common metabolic disorder known as "syndrome X."
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Affiliation(s)
- S N Jackson
- Department of Genetics and Department of Medicine and Therapeutics, University of Leicester, Leicester, United Kingdom
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12
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Bouzas MB, Zapiola I, Quiruelas S, Gorvein D, Panzita A, Rey J, Carnese FP, Corral R, Perez C, Zala C. HTLV type I and HTLV type II infection among Indians and natives from Argentina. AIDS Res Hum Retroviruses 1994; 10:1567-71. [PMID: 7888211 DOI: 10.1089/aid.1994.10.1567] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.7] [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: 01/27/2023] Open
Abstract
Endemic foci for HTLV-II infection have been identified in several Amerindian populations. To determine HTLV-I and/or HTLV-II infection among Amerindians living in Argentina we studied 454 sera or plasmas from Indians and natives from different areas of our country. All samples were tested by the particle agglutination technique, and positive reactions were confirmed by the immunofluorescence assay (IFA). IFA titration was used to differentiate HTLV-I and HTLV-II antibodies. Twenty-three of 222 samples (10.4%) were found positive among the Tobas Indians; 22 samples were typed as HTLV-II and 1 as HTLV-I. Antibodies for HTLV-I were found in the serum and CSF of three natives from Salta with a TSP diagnosis. No positive samples were found among 96 Mapuche Indians and 133 natives from San Luis. Our results indicate that HTLV-II is endemic among the Tobas Indians. In this study, infection by these retroviruses in Argentinian Amerindians seems to have a marked geographic distribution.
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Affiliation(s)
- M B Bouzas
- Grupo de Trabajo de SIDA Pediátrico, Hospital de Niños Ricardo Gutiérrez, Buenos Aires, Argentina
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13
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Alzate A, Crespo MP, Carrasquilla G, Corral R, Sanchez N, Muñoz A. Purified protein derivative (PPD) and HIV infection in Cali, Colombia. J Acquir Immune Defic Syndr (1988) 1993; 6:630-1. [PMID: 8496792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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Petray P, Bonardello N, Clark R, Agranatti M, Corral R, Grinstein S. [Evaluation of an ELISA technique for detection of antigens and circulating immune complexes of Trypanosoma cruzi by a field study in an endemic zone of Argentina]. Rev Inst Med Trop Sao Paulo 1992; 34:141-7. [PMID: 1340028] [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: 12/26/2022] Open
Abstract
The ELISA technique for detection of T. cruzi circulating antigens (cAg) and immune complexes (CIC) in the sera of chronic chagasic patients was field-tested in a well-known endemic area of Argentina (San Luis province). Of 215 individuals screened, 51 were positive for ELISA-CIC and 45 for ELISA-cAg. Seventy four subjects were considered por T. cruzi-infected, as they showed serologic reactivity at least by two different techniques. In this group, 49 (66.21%) were ELISA-CIC positive, whereas in 43 (58.11%) of them cAg was found by ELISA. Unspecific reactions were observed in only 2 cases with reactive serology for Chagas disease. Within the group considered as noninfected, a false-positive outcome was obtained at low dilution by one of the serologic tests in 16 (11.35%) of 141 individuals. These sera yielded consistently negative results by ELISA-CIC and cAg, showing the utility of antigen detection in situations of conflictive serology. While antibody determination merely provides an indirect proof of infection, our ELISA tests for demonstration of T. cruzi-specific antigenic fractions in the host's circulation allow a parasitologic diagnosis in chronic patients, with higher sensitivity than that exhibited by traditional methods for detection of the whole parasite.
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Affiliation(s)
- P Petray
- Laboratorio de Virología, Hospital de Niños Ricardo Gutiérrez, Buenos Aires, Argentina
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15
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Da Silveira, Paranhos GS, Cotrim PC, Mortara RA, Camargo ME, Rassi A, Wanderley J, Corral R, Freilij HL, Grinstein S. Antigens de Trypanosoma cruzi with clinical interest cloned and expressed in Escherichia coli. Mem Inst Oswaldo Cruz 1990; 85:507-11. [PMID: 2152208 DOI: 10.1590/s0074-02761990000400022] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Affiliation(s)
- Da Silveira
- Disciplina de Parasitologia, Escola Paulista de Medicina, Sâo Paulo, Brasil
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16
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Paranhos GS, Cotrim PC, Mortara RA, Rassi A, Corral R, Freilij HL, Grinstein S, Wanderley J, Camargo ME, da Silveira JF. Trypanosoma cruzi: cloning and expression of an antigen recognized by acute and chronic human chagasic sera. Exp Parasitol 1990; 71:284-93. [PMID: 1698656 DOI: 10.1016/0014-4894(90)90033-9] [Citation(s) in RCA: 15] [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: 12/28/2022]
Abstract
Here we describe the characterization of a Trypanosoma cruzi DNA sequence (clone A13) that codes for a polypeptide recognized by IgM and IgG antibodies from sera of acute and congenital chagasic patients. Antibodies to A13 antigen are also detected in the sera of chronic patients with different clinical forms of Chagas' disease, but not in sera of patients with leishmaniasis or other parasitic diseases. The antigenic determinants encoded by clone A13 are found in amastigotes and trypomastigotes of several T. cruzi strains, but not in the noninfective epimastigotes. The DNA sequence of the recombinant clone reveals one open reading frame encoding 251 amino acids without tandemly repeated sequences. Our data suggest that the A13 antigen may be useful for the development of serodiagnostic procedures.
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Affiliation(s)
- G S Paranhos
- Instituto de Medicina Tropical da USP, SP, Brasil
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17
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Katzin AM, Marcipar A, Freilij H, Corral R, Yanovsky JF. Rapid determination of Trypanosoma cruzi urinary antigens in human chronic Chagas disease by agglutination test. Exp Parasitol 1989; 68:208-15. [PMID: 2494054 DOI: 10.1016/0014-4894(89)90099-4] [Citation(s) in RCA: 12] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Detection of Trypanosoma cruzi in man becomes particularly difficult during the chronic stage of Chagas disease because of the low parasitemia. We were able to develop a simple and straightforward method for determining the concentration of T. cruzi antigens in urine using nitrocellulose micellar suspension (Nitrocell-Mr, Polychaco Argentina) and for their subsequent detection through a "latex" type agglutination test. The latex used was an esferocell nitrocellulose suspension (Esferocell-Mr, Polychaco). Specific antigens for T. cruzi were detected in 54 of 58 urine samples from chronic chagasic patients. The antigens characterized by affinity chromatography and SDS-PAGE were glycoproteins with apparent molecular weights (and pIs) of 100 kDa (pI 5 to 5.5), 80 kDa (pI 6.0), and 50 kDa (pI 6.5 to 7.0). This method is practical and fulfills the requirement of large-scale epidemiological studies. It is also helpful in cases of conflictive serology.
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Affiliation(s)
- A M Katzin
- Catedra de Microbiologia, Parasitologia e Inmunologia, Facultad de Medicina, UBA, Buenos Aires, Argentina
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18
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Zaninovic V, Arango C, Biojo R, Mora C, Rodgers-Johnson P, Concha M, Corral R, Barreto P, Borrero I, Garruto RM. Tropical spastic paraparesis in Colombia. Ann Neurol 1988; 23 Suppl:S127-32. [PMID: 2894802 DOI: 10.1002/ana.410230730] [Citation(s) in RCA: 43] [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: 01/03/2023]
Abstract
A high-incidence focus of tropical spastic paraparesis (TSP) occurs on the South Pacific coast of Colombia. Of 55 patients studied, 52 (94.5%) had IgG antibodies to the human T-cell lymphotropic virus type I (HTLV-I) in serum and/or cerebrospinal fluid. Control groups did not show similar high positivity. Our results suggest that HTLV-I or other antigenically related retroviruses may be the cause of TSP in Colombia. Similar clinical, laboratory, and epidemiological findings have been reported in widely remote geographical regions of the world, with very similar clinical pictures of TSP in all high-incidence regions. The demonstration of IgG antibodies in serum and cerebrospinal fluid of patients with TSP in the Caribbean and Seychelles Islands, southern Japan, and the Ivory Coast indicate that the HTLV-I retrovirus could be the cause of this "tropical" myeloneuropathy.
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Affiliation(s)
- V Zaninovic
- Department of Internal Medicine, Faculty of Health, Universidad del Valle, Cali, Colombia
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19
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Arango C, Concha M, Zaninovic V, Corral R, Biojo R, Borrero I, Rodgers-Johnson P, Mora C, Garruto RM, Gibbs CJ. Epidemiology of tropical spastic paraparesis in Columbia and associated HTLV-I infection. Ann Neurol 1988; 23 Suppl:S161-5. [PMID: 2894809 DOI: 10.1002/ana.410230736] [Citation(s) in RCA: 30] [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] [Indexed: 01/03/2023]
Abstract
The clinical syndrome earlier designated as paraparesia espástica del Pacífico is an isolated form of tropical spastic paraparesis (TSP) that was reported in 1981 in the southern Pacific lowlands of Columbia in and near Tumaco. The clinical features are similar to those of TSP reported in Jamaica, Martinique, the Seychelles, and the Ivory Coast of Africa and resemble also those clinical features of the human T-lymphotropic virus type I (HTLV-I)-associated myelopathy described in southern Japan. Since HTLV-I infection is closely associated with TSP, we conducted a case-control study to evaluate the role of HTLV-I-associated risk factors among patients from the endemic focus in Tumaco, Colombia, and the seroprevalence rates of this virus in other geographical areas of the Pacific Colombian lowlands with and without TSP. From our seroprevalence study of antibodies to HTLV-I among TSP index patients, matched controls, household contacts (first- and second-degree relatives), and healthy controls from these areas, we found a strong association between HTLV-I and TSP. Also, there is a high seroprevalence of HTLV-I among sexual partners of patients and to a lesser extent among their offspring and other relatives some of whom had an early mean acquisition of antibodies to HTLV-I. Heterosexual promiscuity and other close interpersonal contact may play an important role in the transmission of TSP in the Pacific lowlands of Colombia.
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Affiliation(s)
- C Arango
- Department of Internal Medicine, Faculty of Health, University of Valle, Cali, Columbia
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20
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Celli BR, Rassulo J, Corral R. Ventilatory muscle dysfunction in patients with bilateral idiopathic diaphragmatic paralysis: reversal by intermittent external negative pressure ventilation. Am Rev Respir Dis 1987; 136:1276-8. [PMID: 3674587 DOI: 10.1164/ajrccm/136.5.1276] [Citation(s) in RCA: 30] [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] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Bilateral idiopathic diaphragmatic paralysis (BIDP) may result in progressive ventilatory failure. To test the hypothesis that this is in part due to dysfunction of overtaxed inspiratory muscles, we studied 3 patients with BIDP before and after 2, 5, and 18 wk of daily intermittent external surface negative pressure ventilation (ENPV). The patients were evaluated using a zero to 10 functional score (FS) that graded dyspnea, orthopnea, capacity to perform activities of daily living, and ability to work. Pleural (Ppl), abdominal (Pab), and transdiaphragmatic (Pdi) pressures were used as an index of respiratory muscle function. All patients improved their functional score (FS increased 2, 6, and 6, respectively) and their pressure generating ability (Pplmax increased -18, -37, and -46 cm H2O, respectively). Forced vital capacity and functional residual capacity increased in the 2 patients ventilated for longer than 2 wk. These results indicate that ventilatory muscle dysfunction may result from chronic increased work of the inspiratory muscles and that it may improve after periods of intermittent ENPV. This may occur as early as 2 wk after initiation of therapy.
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Affiliation(s)
- B R Celli
- Pulmonary Center, Boston University School of Medicine, MA 02118
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21
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Abstract
The presence of circulating immune complexes formed by IgM and IgG (CIC-IgM and CIC-IgG) was investigated, using antigen-specific enzyme-immunoassays (ELISA), in 30 patients with acute Chagas' disease who showed parasitemia and inoculation chagoma. Control population consisted of patients with chronic T. cruzi infection (30), acute toxoplasmosis 10), leishmaniasis (8), rheumatoid arthritis (3) and healthy individuals with negative serology for Chagas* disease (30). Acute chagasic patients were 100% CIC-IgG and 96.66% CIC-IgM positive whereas immunofluorescence tests yielded 90% and 86.66% of positivity for specific IgG and IgM antibodies, respectively. Chronic patients were 68% CIC-IgG and 0% CIC-IgM positive. The 30 negative and the 21 cross-reaction controls proved negative for ELISA (CIC-IgM and CIC-IgG). The high sensitivity of ELISA assays would allow early immunologic diagnosis, as well as prompt treatment, of acute T. cruzi infection, thus eliminating the problem of the false-positive and false-negative results which affects traditional methods for detection of circulating antibodies.
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22
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Abstract
Since the lung is the first highly vascularized organ to which chylomicrons are exposed, we sought to determine whether the lung vasculature is capable of metabolizing triglyceride contained in circulating, native chylomicrons. In addition, since acute lung injury can depress other endothelial cell associated metabolic functions, we determined whether acute injury due to alpha-naphthylthiourea (ANTU) changed chylomicron triglyceride metabolism by lungs. We compared the hydrolysis of radiolabelled chylomicrons from rat mesenteric lymph by perfused lungs isolated from rats pretreated with ANTU; with the vehicle, Tween 80, alone; or untreated control rats. In all groups of lungs, we found that perfusate content and concentration of triglyceride decreased over 30 minutes of perfusion, while that of free fatty acid increased, indicating that isolated lungs are able to hydrolyze chylomicron triglyceride. Despite enhancement of hydrolysis by perfusates containing 6 gm/100 ml of bovine serum albumin, there were no differences among the groups of lungs in the extent or rate of triglyceride metabolism. The [1-14C]-oleate from chylomicron triglyceride was taken up into lung tissue during 30 minutes of perfusion and incorporated into neutral lipid, phosphatidylcholine, and phosphatidylethanolamine to a similar degree by ANTU-injured and control lungs. Lipoprotein lipase activity in homogenates of lungs from ANTU and Tween treated rats did not differ. We conclude that lungs are capable of hydrolysis of triglyceride contained in chylomicrons and that this endothelial cell associated metabolic function is not altered by acute lung injury caused by ANTU.
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Affiliation(s)
- R Corral
- Biophysics Institute, Boston University School of Medicine, Massachusetts 02118
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23
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Abstract
Transudative pleural effusion developed after plasmapheresis in a patient with Waldenström's macroglobulinemia and hyperviscosity. When albumin was added to the apheresis, the effusion resolved. We therefore suspect that rapid removal of high-molecular-weight IgM led to an abrupt decrease in intravascular colloid oncotic pressure and transudation of fluid into the pleural space. Plasmapheresis can cause pleural effusions in patients who were previously hemodynamically compensated at high levels of colloid oncotic pressure.
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24
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Corral R, Mira J, Fening J, Casian C, Uribe M. [Emphysematous cholecystitis (author's transl)]. Rev Gastroenterol Mex 1979; 44:115-7. [PMID: 394266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A case of emphysematous cholecystitis is reported. The gallblader size in this case was 25 x 12 cms. The patient underwent successful cholecystectomy and responded adequately to cloramphenicol, peniciline and metronidazol. The late antibiotics are usually recommended due to the prevalence of Clostridia and Escherinchia bacterial infections in the gallbladder of patients with this illness.
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