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Chang YT, Chiu I, Wang Q, Bustamante J, Jiang W, Rycaj K, Yi S, Li J, Kowalski-Muegge J, Matsui W. Loss of p53 enhances the tumor-initiating potential and drug resistance of clonogenic multiple myeloma cells. Blood Adv 2023; 7:3551-3560. [PMID: 37042949 PMCID: PMC10368840 DOI: 10.1182/bloodadvances.2022009387] [Citation(s) in RCA: 1] [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] [Received: 11/21/2022] [Revised: 04/05/2023] [Accepted: 04/05/2023] [Indexed: 04/13/2023] Open
Abstract
Tumor relapse and drug resistance are major factors that limit the curability of multiple myeloma (MM). New regimens have improved overall MM survival rates, but patients with high-risk features continue to have inferior outcomes. Chromosome 17p13 deletion (del17p) that includes the loss of the TP53 gene is a high-risk cytogenetic abnormality and is associated with poor clinical outcomes owing to relatively short remissions and the development of pan-drug resistant disease. Increased relapse rates suggest that del17p enhances clonogenic growth, and we found that the loss of p53 increased both the frequency and drug resistance of tumor-initiating MM cells (TICs). Subsequent RNA sequencing (RNA-seq) studies demonstrated significant activation of the Notch signaling pathway and upregulation of inhibitor of DNA binding (ID1/ID2) genes in p53-knock out (p53-KO) cells. We found that the loss of ID1 or HES-1 expression or treatment with a gamma-secretase inhibitor (GSI) significantly decreased the clonogenic growth of p53-KO but not p53 wild-type cells. GSI treatment in a small set of MM specimens also reduced the clonogenic growth in del17p samples but not in non-del17p samples. This effect was specific as overexpression of the Notch intracellular domain (NICD) rescued the effects of GSI treatment. Our study demonstrates that the Notch signaling and ID1 expression are required for TIC expansion in p53-KO MM cells. These findings also suggest that GSI may be specifically active in patients with p53 mutant MM.
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Affiliation(s)
- Yu-Tai Chang
- Department of Oncology, Livestrong Cancer Institutes, Dell Medical School, The University of Texas at Austin, Austin, TX
| | - Ian Chiu
- Department of Oncology, Livestrong Cancer Institutes, Dell Medical School, The University of Texas at Austin, Austin, TX
- College of Natural Sciences, The University of Texas at Austin, Austin, TX
| | - Qiuju Wang
- Department of Oncology, Livestrong Cancer Institutes, Dell Medical School, The University of Texas at Austin, Austin, TX
| | - Jorge Bustamante
- Department of Oncology, Livestrong Cancer Institutes, Dell Medical School, The University of Texas at Austin, Austin, TX
| | - Wenxuan Jiang
- Department of Oncology, Livestrong Cancer Institutes, Dell Medical School, The University of Texas at Austin, Austin, TX
| | - Kiera Rycaj
- Department of Oncology, Livestrong Cancer Institutes, Dell Medical School, The University of Texas at Austin, Austin, TX
| | - Song Yi
- Department of Oncology, Livestrong Cancer Institutes, Dell Medical School, The University of Texas at Austin, Austin, TX
| | - Joey Li
- Department of Oncology, Sydney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD
| | - Jeanne Kowalski-Muegge
- Department of Oncology, Livestrong Cancer Institutes, Dell Medical School, The University of Texas at Austin, Austin, TX
| | - William Matsui
- Department of Oncology, Livestrong Cancer Institutes, Dell Medical School, The University of Texas at Austin, Austin, TX
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Bustamante J, Ahmed M, Deora T, Fabien B, Daniel TL. Abdominal movements in insect flight reshape the role of non-aerodynamic structures for flight maneuverability I: Model predictive control for flower tracking. Integr Org Biol 2022; 4:obac039. [PMID: 36249575 PMCID: PMC9555208 DOI: 10.1093/iob/obac039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 05/31/2022] [Accepted: 09/01/2022] [Indexed: 12/04/2022] Open
Abstract
Research on insect flight control has focused primarily on the role of wings. Yet abdominal deflections during flight can potentially influence the dynamics of flight. This paper assesses the role of airframe deformations in flight, and asks to what extent the abdomen contributes to flight maneuverability. To address this, we use a combination of both a Model Predictive Control (MPC)-inspired computational inertial dynamics model, and free flight experiments in the hawkmoth, Manduca sexta. We explored both underactuated (i.e., number of outputs are greater than the number of inputs) and fully actuated (equal number of outputs and inputs) systems. Using metrics such as the non-dimensionalized tracking error and cost of transport to evaluate flight performance of the inertial dynamics model, we show that fully actuated simulations minimized the tracking error and cost of transport. Additionally, we tested the effect of restricted abdomen movement on free flight in live hawkmoths by fixing a carbon fiber rod over the thoracic-abdomen joint. Moths with a restricted abdomen performed worse than sham treatment moths. This study finds that abdominal motions contribute to flight control and maneuverability. Such motions of non-aerodynamic structures, found in all flying taxa, can inform the development of multi-actuated micro air vehicles.
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Affiliation(s)
- Jorge Bustamante
- Department of Biology, University of Washington , 351800, 98195, WA, USA
| | - Mahad Ahmed
- Department of Biology, University of Washington , 351800, 98195, WA, USA
| | - Tanvi Deora
- Department of Biology, University of Washington , 351800, 98195, WA, USA
| | - Brian Fabien
- Shiley School of Engineering, University of Portland , 5000 N. Willamette Blvd., 97203, OR, USA
| | - Thomas L Daniel
- Department of Biology, University of Washington , 351800, 98195, WA, USA
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Soleimani M, Somma A, Kaoud TS, Goyal R, Bustamante J, Wylie DC, Holay N, Looney AP, Giri U, Triplett T, Dalby KN, Kowalski J, Eckhardt SG, Van Den Berg C. Covalent JNK inhibitor, JNK-IN-8, suppresses tumor growth in triple-negative breast cancer by activating TFEB and TFE3 mediated lysosome biogenesis and autophagy. Mol Cancer Ther 2022; 21:1547-1560. [PMID: 35977156 DOI: 10.1158/1535-7163.mct-21-1044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 05/18/2022] [Accepted: 08/11/2022] [Indexed: 11/16/2022]
Abstract
The heterogeneity and aggressiveness of Triple-Negative Breast Cancer (TNBC) contribute to its early recurrence and metastasis. Despite substantial research to identify effective therapeutic targets, TNBC remains elusive in terms of improving patient outcomes. Here, we report that a covalent JNK inhibitor, JNK-IN-8, suppresses TNBC growth both in vitro and in vivo. JNK-IN-8 reduced colony formation, cell viability, and organoid growth in vitro and slowed patient-derived xenograft and syngeneic tumor growth in vivo. Cells treated with JNK-IN-8 exhibited large, cytoplasmic vacuoles with lysosomal markers. To examine the molecular mechanism of this phenotype, we looked at the master regulators of lysosome biogenesis and autophagy TFEB and TFE3. JNK-IN-8 inhibited TFEB phosphorylation and induced nuclear translocation of unphosphorylated TFEB and TFE3. This was accompanied by an upregulation of TFEB/TFE3 target genes associated with lysosome biogenesis and autophagy. Depletion of both TFEB and TFE3 diminished the JNK-IN-8-driven upregulation of lysosome biogenesis/autophagy markers. TFEB and TFE3 are phosphorylated by a number of kinases, including mTOR. JNK-IN-8 reduced phosphorylation of mTOR targets in a concentration-dependent manner. Knockout of JNK1 and/or JNK2 had no impact on TFEB/TFE3 activation or mTOR inhibition by JNK-IN-8, but inhibited colony formation. Similarly, re-expression of either wildtype or drug-nonbinding JNK (C116S) in JNK knockout cells did not reverse JNK-IN-8-induced TFEB dephosphorylation. In summary, JNK-IN-8 induced lysosome biogenesis and autophagy by activating TFEB/TFE3 via mTOR inhibition independently of JNK. Together, these findings demonstrate the efficacy of JNK-IN-8 as a targeted therapy for TNBC and reveal its novel lysosome- and autophagy-mediated mechanism of action.
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Affiliation(s)
- Milad Soleimani
- The University of Texas at Austin, Austin, Texas, United States
| | - Alexander Somma
- The University of Texas at Austin, Austin, TX; 2Livestrong Cancer Institutes, Department of Oncology, Dell Medical School, The University of Texas at Austin, Austin, TX, United States
| | - Tamer S Kaoud
- The University of Texas at Austin, Austin, TX, United States
| | - Ria Goyal
- Dell Medical School, The University of Texas at Austin, Austin, Texas, United States
| | | | | | - Nisha Holay
- nterdisciplinary Life Sciences Graduate Programs, The University of Texas at Austin, Austin, TX, United States
| | | | - Uma Giri
- The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Todd Triplett
- Livestrong Cancer Institutes, Department of Oncology, Dell Medical School, The University of Texas at Austin, Austin, TX, United States
| | - Kevin N Dalby
- The University of Texas at Austin, Austin, United States
| | - Jeanne Kowalski
- The University of Texas at Austin, Austin, TX, United States
| | - S Gail Eckhardt
- The University of Texas at Austin, Austin, TX, United States
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Soleimani M, Kaoud T, Somma A, Bustamante J, Wylie DC, Holay N, Looney A, Giri U, Triplett T, Kowalski-Muegge J, Dalby KN, Eckhardt SG, Van Den Berg C. Abstract 4109: Covalent JNK inhibitor, JNK-IN-8, suppresses tumor growth in triple-negative breast cancer in part by activating lysosome biogenesis and autophagy via TFEB and TFE3. Cancer Res 2022. [DOI: 10.1158/1538-7445.am2022-4109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
The heterogeneity and aggressiveness of Triple-Negative Breast Cancer (TNBC) contribute to its early recurrence and metastasis. Despite substantial research to identify effective molecular targets for therapy, TNBC remains particularly elusive in terms of improving patient outcomes for advanced disease. Here, we report that a covalent JNK inhibitor, JNK-IN-8, suppresses TNBC growth in cell lines and patient-derived organoids in vitro and patient-derived xenograft tumors in vivo.
JNK-IN-8 reduced colony formation in TNBC cell lines and cell viability in both cell lines and patient-derived organoids in a concentration-dependent manner. Further, the compound significantly slowed tumor growth compared to vehicle in a patient-derived xenograft model in vivo. Cells treated with JNK-IN-8 exhibited large, cytoplasmic vacuoles with lysosomal markers. To examine the molecular mechanism of this phenotype, we looked at the master regulators of lysosome biogenesis and autophagy TFEB and TFE3. JNK-IN-8 inhibited TFEB phosphorylation and induced nuclear translocation of both TFEB and TFE3. This was accompanied by an upregulation of TFEB/TFE3 target genes associated with lysosome biogenesis and autophagy. Depletion of both TFEB and TFE3 diminished the JNK-IN-8-driven reduction of colony formation and the upregulation of lysosome biogenesis and autophagy markers. JNK-IN-8 also reduced the phosphorylation of other mTOR targets in a concentration-dependent manner. Ectopic expression of RagC (S75L) rescued mTOR signaling and restored TFEB phosphorylation and cytoplasmic localization. In contrast, knockout of JNK1 and/or JNK2 had no impact on TFEB/TFE3 activation or mTOR inhibition by JNK-IN-8, but did inhibit colony formation. Similarly, re-expression of either wildtype or drug-nonbinding JNK (C116S) in JNK knockout cells did not reverse JNK-IN-8-induced TFEB dephosphorylation.
In summary, JNK-IN-8 induced lysosome biogenesis and autophagy by activating TFEB and TFE3 via mTOR inhibition independently of JNK. Together, these findings demonstrate the in vitro and in vivo efficacy of JNK-IN-8 as a targeted therapy for TNBC and reveal its novel lysosome- and autophagy-mediated mechanism of action.
Citation Format: Milad Soleimani, Tamer Kaoud, Alex Somma, Jorge Bustamante, Dennis C. Wylie, Nisha Holay, Agnieszka Looney, Uma Giri, Todd Triplett, Jeanne Kowalski-Muegge, Kevin N. Dalby, S. Gail Eckhardt, Carla Van Den Berg. Covalent JNK inhibitor, JNK-IN-8, suppresses tumor growth in triple-negative breast cancer in part by activating lysosome biogenesis and autophagy via TFEB and TFE3 [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2022; 2022 Apr 8-13. Philadelphia (PA): AACR; Cancer Res 2022;82(12_Suppl):Abstract nr 4109.
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Affiliation(s)
| | - Tamer Kaoud
- 1The University of Texas at Austin, Austin, TX
| | - Alex Somma
- 1The University of Texas at Austin, Austin, TX
| | | | | | - Nisha Holay
- 1The University of Texas at Austin, Austin, TX
| | | | - Uma Giri
- 1The University of Texas at Austin, Austin, TX
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5
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Bustamante J, Sainz T, Montojo FA, Almirón MD, Subirats M, Vega DM, Mellado MJ, López-Hortelano MG. Screening for parasites in migrant children. Travel Med Infect Dis 2022; 47:102287. [PMID: 35304329 DOI: 10.1016/j.tmaid.2022.102287] [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: 05/21/2021] [Revised: 01/26/2022] [Accepted: 02/23/2022] [Indexed: 11/15/2022]
Abstract
BACKGROUND Globalization has pushed population movements in the last decades, turning imported diseases into the focus. Due to behavioral habits, children are at higher risk of acquiring iparasitosis. This study aims to investigate the prevalence of parasites in migrant children and factors associated with parasitic diseases. METHOD Retrospective cross-sectional study (2014-2018) including children diagnosed with parasitosis. The diagnosis was based on serology and/or microscopic stool-sample evaluation. Epidemiological and clinical data were recorded. RESULTS Out of 813 migrant children screened, 241 (29.6%) presented at least one parasite, and 89 (10.9%) more than one. The median age was 6.6 years (IQR: 3.1-11.9) and 58.9% were males. Most cases were referred for a health exam; only 52.3% of children were symptomatic, but 43.6% had eosinophilia. The most common diagnosis were giardiasis (35.3%), schistosomiasis (19.1%), toxocariasis (15.4%), and strongyloidiasis (9.1%). After the multivariate analysis, African origin and presenting with eosinophilia were the main risk factors for parasitism. CONCLUSIONS parasitosis are frequent among migrant children. Children are often asymptomatic, and thus active screening for parasitosis should be considered among high-risk populations. Eosinophilia can be useful to guide complimentary tests, as well as geographical origin, but normal eosinophil count does not exclude parasitosis.
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Affiliation(s)
- Jorge Bustamante
- Department of Pediatrics, Hospital General de Valdepeñas, Ciudad Real, Spain; La Paz Research Institute (IdiPAZ) Madrid, Spain; Universidad Autónoma de Madrid (UAM), Spain
| | - Talía Sainz
- La Paz Research Institute (IdiPAZ) Madrid, Spain; Universidad Autónoma de Madrid (UAM), Spain; General Pediatrics and Infectious and Tropical Diseases Department, Hospital La Paz, Madrid, Spain; Red de Investigación Traslacional en Infectología Pediátrica (RITIP), Spain.
| | - Fátima Ara Montojo
- La Paz Research Institute (IdiPAZ) Madrid, Spain; General Pediatrics Department, Hospital de Quiron, Pozuelo, Spain
| | - Mariana Díaz Almirón
- La Paz Research Institute (IdiPAZ) Madrid, Spain; Biostatistics Department, La Paz University Hospital, Spain
| | - Mercedes Subirats
- La Paz Research Institute (IdiPAZ) Madrid, Spain; Department of Microbiology and Parasitology, Hospital La Paz Madrid, Spain
| | - Dolores Montero Vega
- La Paz Research Institute (IdiPAZ) Madrid, Spain; Department of Microbiology and Parasitology, Hospital La Paz Madrid, Spain
| | - María José Mellado
- La Paz Research Institute (IdiPAZ) Madrid, Spain; Universidad Autónoma de Madrid (UAM), Spain; General Pediatrics and Infectious and Tropical Diseases Department, Hospital La Paz, Madrid, Spain; Red de Investigación Traslacional en Infectología Pediátrica (RITIP), Spain
| | - Milagros García López-Hortelano
- La Paz Research Institute (IdiPAZ) Madrid, Spain; General Pediatrics and Infectious and Tropical Diseases Department, Hospital La Paz, Madrid, Spain; Red de Investigación Traslacional en Infectología Pediátrica (RITIP), Spain
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6
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Bustamante J, Sainz T, Pérez S, Rodríguez-Molino P, Montero Vega D, Mellado MJ, García López-Hortelano M. Toxocariasis in migrant children: A 6 years' experience in a reference pediatric unit in Spain. Travel Med Infect Dis 2022; 47:102288. [PMID: 35247580 DOI: 10.1016/j.tmaid.2022.102288] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Revised: 12/21/2021] [Accepted: 02/23/2022] [Indexed: 11/30/2022]
Abstract
BACKGROUND Toxocariasis is a worldwide distributed zoonosis that affects characteristically children. Clinical presentation is highly variable, often asymptomatic, and treatment duration is controversial. METHODS A retrospective descriptive study (January 2014-December 2019) was performed in a referral Unit for Pediatric Tropical Diseases. Patients younger than 18 years of age diagnosed with toxocariasis were included. RESULTS Out of 931 children screened for toxocariasis, 49 (5.3%) were seropositive. The median age was 11.0 years, 55.1% male and 30.6% referred contact with puppies. Overall, 34.7% were Latin-American, 24.5% Asiatic, 20.4% European, and 20.4% African. Only 34.7% presented symptoms, gastrointestinal the most common (52.9%). The 57.1% of children presented eosinophilia and 50% elevated total IgE. Most cases (95.9%) corresponded to covert toxocariasis. All children were treated with albendazole for 5-14-21 days, and 4 children required a second course. Follow-up data were available in 32 children (65.3%) for a median of 7 months, showing a progressive decline in eosinophils, IgE-titers and ELISA optical density. CONCLUSION Toxocariasis is mostly asymptomatic in children and eosinophilia is not always present. Serological tests should be included in migrant health screening and in the diagnostic assessment of eosinophilia. Eosinophil count, IgE-titers and ELISA optical-density could be useful during follow-up.
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Affiliation(s)
- J Bustamante
- Department of Pediatrics and Infectious Diseases, Hospital Universitario Doctor José Molina Orosa, Las Palmas, Spain; La Paz Research Institute (IdiPAZ), Madrid, Spain; Universidad Autónoma de Madrid (UAM), Spain.
| | - T Sainz
- La Paz Research Institute (IdiPAZ), Madrid, Spain; Universidad Autónoma de Madrid (UAM), Spain; General Pediatrics and Infectious and Tropical Diseases Department, Hospital La Paz, Madrid, Spain; Red de Investigación Traslacional en Infectología Pediátrica (RITIP), Spain; Centro de Investigación en Red en Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, 28029, Madrid, Spain.
| | - S Pérez
- La Paz Research Institute (IdiPAZ), Madrid, Spain; Hospital de Torrejón, Madrid, Spain.
| | - P Rodríguez-Molino
- La Paz Research Institute (IdiPAZ), Madrid, Spain; Universidad Autónoma de Madrid (UAM), Spain; General Pediatrics and Infectious and Tropical Diseases Department, Hospital La Paz, Madrid, Spain.
| | - D Montero Vega
- La Paz Research Institute (IdiPAZ), Madrid, Spain; Department of Microbiology and Parasitology, Hospital La Paz Madrid, Spain.
| | - M J Mellado
- La Paz Research Institute (IdiPAZ), Madrid, Spain; Universidad Autónoma de Madrid (UAM), Spain; General Pediatrics and Infectious and Tropical Diseases Department, Hospital La Paz, Madrid, Spain; Red de Investigación Traslacional en Infectología Pediátrica (RITIP), Spain; Centro de Investigación en Red en Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, 28029, Madrid, Spain.
| | - M García López-Hortelano
- La Paz Research Institute (IdiPAZ), Madrid, Spain; General Pediatrics and Infectious and Tropical Diseases Department, Hospital La Paz, Madrid, Spain; Red de Investigación Traslacional en Infectología Pediátrica (RITIP), Spain; Centro de Investigación en Red en Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, 28029, Madrid, Spain.
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Viguera L, Blasi A, Reverter E, Arjona B, Caballero M, Chocron I, García-López JA, Gutierrez R, Martin MJ, Pérez-Peña J, Pitera J, Zarragoikoetxea I, Sabaté A, Belmonte C, Bustamante J, Beltran J, Colmenero J, Costa M, Fondevila C, Galan P, García-Palenciano C, Garrido JL, Gomez-Serrano J, Gonzalez S, de la Fuente JC, Jimeno C, Leon A, Lopez-Toribio P, Marín A, Del Mazo A, de Nadal M, Ojinaga G, Padilla J, Tevar J, Torres M, Zaballos M. Liver transplant with controlled donors after circulatory death with normothermic regional perfusion and brain dead donors: A multicenter cohort study of transfusion, one-year graft survival and mortality. Int J Surg 2021; 96:106169. [PMID: 34848373 DOI: 10.1016/j.ijsu.2021.106169] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 07/01/2021] [Revised: 09/14/2021] [Accepted: 11/02/2021] [Indexed: 01/18/2023]
Abstract
BACKGROUND Controlled donation after circulatory death (cDCD) has expanded the donor pool for liver transplantation (LT). However, transfusion requirements and perioperative outcomes should be elucidated. The aim of this multicenter study was to assess red blood cell (RBC) transfusions, one-year graft and patient survival after LT after cDCD with normothermic regional perfusion (NRP) compared with donors after brain death (DBD). METHODS 591 LT carried out in ten centers during 2019 were reviewed. Thromboelastometry was used to manage coagulation and blood product transfusion in all centers. Normothermic regional perfusion was the standard technique for organ recovery. RESULTS 447 patients received DBD and 144 cDCD with NRP. Baseline MCF Extem was lower in the cDCD group There were no differences in the percentage of patients (63% vs. 61% p = 0.69), nor in the number of RBC units transfused (4.7 (0.2) vs 5.5 (0.4) in DBD vs cDCD, p = 0.11. Twenty-six patients (6%) died during admission for LT in the DBD group compared with 3 patients (2%) in the cDCD group (p = 0.15). To overcome the bias due to a worse coagulation profile in cDCD recipients, matched samples were compared. No differences in baseline laboratory data, or in intraoperative use of RBC or one-year outcome data were observed between DBD and cDCD recipients. CONCLUSIONS cDCD with NRP is not associated with increased RBC transfusion. No differences in graft and patient survival between cDCD and DBD were found. Donors after controlled circulatory death with NRP can increasingly be utilized with safety, improving the imbalance between organ donors and the ever-growing demand.
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Affiliation(s)
- Laura Viguera
- Anaesthesia Department, Hospital Clinic de Barcelona, IDIBAPS, Spain Anaesthesia Department, Hospital Reina Sofia, Spain Anaesthesia Department, Hospital Vall d'Hebron, Spain Anaesthesia Department, Hospital Clínico Universitario Virgen de la Arrixaca, Spain Anaesthesia Department, Hospital de Cruces, Spain Anaesthesia Department, Hospital Universitario de Badajoz, Spain Anaesthesia Department, Hospital Universitario de la Fe, Spain Anaesthesia Department, Hospital Universiari Bellvitge, Spain Hepatology Department, Hospital Clinic Barcelona, IDIBAPS, Spain Anaesthesia Department, Hospital Universitario Gregorio Marañon de Madrid, Spain Surgery Department, Hospital Clinic de Barcelona, IDIBAPS, Spain Anaesthesia Department, Hospital Universitari Bellvitge, Spain Hepatology Department, Hospital Clinic Barcelona, Spain Anaesthesia Department, Complejo Hospitalario Universitario A Coruña, Spain Anaesthesia Department, Hospital Universitario Gregorio Marañón Madrid, Spain Anaesthesia Department, Hospital Universitari Bellvitge, University of Barcelona, IDIBELL, Spain
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8
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Ruiz E, Fernandez-Placencia R, Bustamante J, Medina-Cana J, Loja E, Berrospi F. Monosegment associating liver partition and portal vein ligation for staged hepatectomy: Preserving segment 1 as the only liver remnant after hepatocellular carcinoma recurrence. Ann Hepatobiliary Pancreat Surg 2021; 25:562-565. [PMID: 34845132 PMCID: PMC8639318 DOI: 10.14701/ahbps.2021.25.4.562] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 07/21/2021] [Accepted: 08/01/2021] [Indexed: 11/25/2022] Open
Abstract
Since the inception of the associating liver partition and portal vein ligation for staged hepatectomy (ALPPS) procedure, many centres have used this technique for patients who would otherwise be considered unresectable due to insufficient future liver remnant. In this report, we presented the case of a paediatric patient with recurrent hepatocellular carcinoma who underwent monosegment ALPPS (M-ALPPS) hepatectomy preserving segment 1 as the sole liver remnant using indocyanine green (ICG) as a fluorescence guide.
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Affiliation(s)
- Eloy Ruiz
- Department of Abdominal Surgery, Instituto Nacional de Enfermedades Neoplasicas (INEN), Lima, Peru
| | | | - Jorge Bustamante
- Department of Abdominal Surgery, Instituto Nacional de Enfermedades Neoplasicas (INEN), Lima, Peru
| | - Jose Medina-Cana
- Department of Anesthesiology, Instituto Nacional de Enfermedades Neoplasicas (INEN), Lima, Peru
| | - Elmer Loja
- Department of Abdominal Surgery, Instituto Nacional de Enfermedades Neoplasicas (INEN), Lima, Peru
| | - Francisco Berrospi
- Department of Abdominal Surgery, Instituto Nacional de Enfermedades Neoplasicas (INEN), Lima, Peru
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9
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Blancas-Galicia L, Peñafiel-Vicuña AK, Scheffler-Mendoza S, Rojas-Maruri M, Rivas-Larrauri F, Rodríguez-Lozano AL, Bustamante J, Yamazaki-Nakashimada MA. Recurrent Salmonella Infections and Nephritis Complicating IgA Vasculitis in a Patient with IL12-RB1 Deficiency. J Investig Allergol Clin Immunol 2021; 32:308-310. [PMID: 34489232 DOI: 10.18176/jiaci.0750] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- L Blancas-Galicia
- Immunodeficiencies Research Unit, National Institute of Pediatrics, Mexico, Mexico City
| | - A K Peñafiel-Vicuña
- Immunodeficiencies Research Unit, National Institute of Pediatrics, Mexico, Mexico City.,Clinical Immunology Department, National Institute of Pediatrics, Mexico, Mexico City
| | - S Scheffler-Mendoza
- Clinical Immunology Department, National Institute of Pediatrics, Mexico, Mexico City
| | - M Rojas-Maruri
- Pathology Department, National Institute of Pediatrics, Mexico, Mexico City
| | - F Rivas-Larrauri
- Clinical Immunology Department, National Institute of Pediatrics, Mexico, Mexico City
| | - A L Rodríguez-Lozano
- Clinical Immunology Department, National Institute of Pediatrics, Mexico, Mexico City
| | - J Bustamante
- St. Giles Laboratory of Human Genetics of Infectious Disease, Rockefeller Branch, Rockefeller University, New York, NK, United States.,Laboratory of Human Genetics of Infectious Diseases, Necker Branch, INSERM UMR 1163, Paris, France.,Imagine Institute, University of Paris, Paris, France.,Study Center for Immunodeficiencies, Necker Hospital for Sick Children, AP-HP, Paris, France
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Palacios-Reyes D, Yamazaki-Nakashimada MA, Castaño-Jaramillo L, Roman-Montes CM, González-Lara MF, Scheffler-Mendoza S, Costta-Michuy A, Bustamante J, Blancas-Galicia L. Pulmonary Geotrichosis in Chronic Granulomatous Disease. J Investig Allergol Clin Immunol 2021; 32:306-308. [PMID: 34489233 DOI: 10.18176/jiaci.0749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- D Palacios-Reyes
- Mycology Department, National Institute of Pediatrics, Mexico City, Mexico
| | | | - L Castaño-Jaramillo
- Immunology Department, National Institute of Pediatrics, Mexico City, Mexico
| | - C M Roman-Montes
- Clinical Microbiology Laboratory, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico.,Infectious Diseases Department, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
| | - M F González-Lara
- Clinical Microbiology Laboratory, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico.,Infectious Diseases Department, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
| | - S Scheffler-Mendoza
- Immunology Department, National Institute of Pediatrics, Mexico City, Mexico
| | - A Costta-Michuy
- Infectious Diseases Department, National Institute of Pediatrics, Mexico City, Mexico
| | - J Bustamante
- St. Giles Laboratory of Human Genetics of Infectious Disease, Rockefeller Branch, Rockefeller University, New York, NK, United States.,Laboratory of Human Genetics of Infectious Diseases, Necker Branch, INSERM UMR 1163, Paris, France.,Imagine Institute, University of Paris, Paris, France.,Study Center for Immunodeficiencies, Necker Hospital for Sick Children, AP-HP, Paris, France
| | - L Blancas-Galicia
- Immunodeficiencies Research Unit, National Institute of Pediatrics, Mexico City, Mexico
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Ara-Montojo MF, Bustamante J, Sainz T, Pérez S, Jiménez-Moreno B, Ruiz-Carrascoso G, Rodríguez-Molino P, Villota J, García-López-Hortenano M, Mellado-Peña MJ. Intestinal giardiasis in children: Five years' experience in a reference unit. Travel Med Infect Dis 2021; 42:102082. [PMID: 34020030 DOI: 10.1016/j.tmaid.2021.102082] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 04/13/2021] [Accepted: 04/23/2021] [Indexed: 11/18/2022]
Abstract
BACKGROUND Giardiasis is highly prevalent in children and is often mildly symptomatic. First-line treatment is metronidazole, but treatment failure is not uncommon. We describe a paediatric series, to identify risk factors for treatment failure and to analyse the safety and effectiveness of other treatment strategies. METHODS Retrospective observational study, including children diagnosed with giardiasis from 2014 to 2019. Diagnosis was based on direct visualisation by microscopy after concentration using an alcohol-based fixative, antigen detection and/or DNA detection by polymerase chain reaction in stool. Treatment failure was considered when GI was detected 4 weeks after treatment. RESULTS A total of 120 patients were included, 71.6% internationally adopted, median age 4.2 (2.3-7.3) years. Only 50% presented with symptoms, mainly diarrhoea (35%) and abdominal pain (14.1%); co-parasitism was frequent (45%). First-line treatment failure after a standard dose of metronidazole was 20%, lowering to 8.3% when a higher dose was administered (p < 0.001). Quinacrine was administered in 10 patients, with 100% effectiveness. Children <2 years were at higher risk of treatment failure (OR 3.49; 95% CI 1.06-11.53; p = 0.040). CONCLUSIONS In children with giardiasis, treatment failure is frequent, especially before 2 years of age. Quinacrine can be considered as a second-line treatment. After treatment, eradication should be confirmed.
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Affiliation(s)
- M F Ara-Montojo
- Paediatric Tropical and Infectious Diseases, Department of Paediatrics, La Paz University Hospital, Madrid, Spain
| | - J Bustamante
- Paediatric Tropical and Infectious Diseases, Department of Paediatrics, La Paz University Hospital, Madrid, Spain; La Paz Research Institute (IdiPAZ), Madrid, Spain
| | - T Sainz
- Paediatric Tropical and Infectious Diseases, Department of Paediatrics, La Paz University Hospital, Madrid, Spain; La Paz Research Institute (IdiPAZ), Madrid, Spain; Translational Research Network in Paediatric Infectious Diseases (RITIP, Red de Investigación Translacional en Infectología Pediátrica), Spain.
| | - S Pérez
- Paediatric Tropical and Infectious Diseases, Department of Paediatrics, La Paz University Hospital, Madrid, Spain
| | | | - G Ruiz-Carrascoso
- Department of Microbiology, La Paz University Hospital, Madrid, Spain
| | - P Rodríguez-Molino
- Paediatric Tropical and Infectious Diseases, Department of Paediatrics, La Paz University Hospital, Madrid, Spain
| | - J Villota
- Paediatric Tropical and Infectious Diseases, Department of Paediatrics, La Paz University Hospital, Madrid, Spain; La Paz Research Institute (IdiPAZ), Madrid, Spain
| | - M García-López-Hortenano
- Paediatric Tropical and Infectious Diseases, Department of Paediatrics, La Paz University Hospital, Madrid, Spain; La Paz Research Institute (IdiPAZ), Madrid, Spain; Translational Research Network in Paediatric Infectious Diseases (RITIP, Red de Investigación Translacional en Infectología Pediátrica), Spain
| | - M J Mellado-Peña
- Paediatric Tropical and Infectious Diseases, Department of Paediatrics, La Paz University Hospital, Madrid, Spain; La Paz Research Institute (IdiPAZ), Madrid, Spain; Translational Research Network in Paediatric Infectious Diseases (RITIP, Red de Investigación Translacional en Infectología Pediátrica), Spain
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Bustamante J, Murias S, Enriquez E, Alcobendas R, Remesal A, De Inocencio J. Biological therapy in refractory chronic nonbacterial osteomyelitis: A case series of 19 patients. Joint Bone Spine 2020; 88:105120. [PMID: 33346110 DOI: 10.1016/j.jbspin.2020.105120] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [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: 07/28/2020] [Accepted: 11/30/2020] [Indexed: 01/13/2023]
Abstract
INTRODUCTION Chronic non-bacterial osteomyelitis (CNO) represents an autoinflammatory bone disorder. Currently there are no standardized diagnostic or treatment guidelines. The objective of the study is to describe our experience with biological therapy in children with the disease. METHODS Retrospective chart review of patients with CNO treated with biological therapy followed at two tertiary hospitals from January 2007 to April 2020. Biologicals were started in most patients due to persistent disease activity after receiving standard therapy with at least 2 drugs (NSAIDs and corticosteroids and/or pamidronate). RESULTS Twenty-five patients were diagnosed with CNO. Out of those, 19 patients (15 females) failed conventional therapy. The mean age at diagnosis was 8.8±2.9 years and the mean diagnostic delay was 6.9±8.3 months. All patients presented with bone pain and 6/19 also had fever. The most frequently affected bones were femur (9 patients), followed by clavicle, tibia and vertebrae (6, 6 and 5 patients respectively). Nine children had skin lesions. C-reactive protein was elevated in 13/19 patients (mean 20.2mg/L±11.7) and ESR in 16/19 (mean 48mm/h±29). All patients received nonsteroidal anti-inflammatory drugs, 15/19 pamidronate, 10/19 corticosteroids and 19 anti-TNF-therapy. At the last follow-up visit, 10/19 patients were still on biological therapy (8 adalimumab, 2 infliximab) and 18 out of 19 remained asymptomatic. In regards to adverse effects, one patient receiving infliximab developed S. aureus osteomyelitis and another cutaneous leishmaniosis. CONCLUSIONS This research emphasizes that anti-TNF-therapy represents an effective and safe alternative for patients with CNO refractory to conventional treatments.
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Affiliation(s)
- Jorge Bustamante
- Department of General Paediatrics and Infectious and Tropical Diseases, Hospital La Paz-IdiPAZ, Paseo de la Castellana 261, 28046 Madrid, Spain
| | - Sara Murias
- Department of Pediatric Rheumatology, Hospital La Paz-IdiPAZ, Paseo de la Castellana 261, 28046 Madrid, Spain.
| | - Eugenia Enriquez
- Department of Pediatric Rheumatology, University Hospital 12 de Octubre, Av Cordoba s/n, 28041 Madrid, Spain
| | - Rosa Alcobendas
- Department of Pediatric Rheumatology, Hospital La Paz-IdiPAZ, Paseo de la Castellana 261, 28046 Madrid, Spain
| | - Agustín Remesal
- Department of Pediatric Rheumatology, Hospital La Paz-IdiPAZ, Paseo de la Castellana 261, 28046 Madrid, Spain
| | - Jaime De Inocencio
- Department of Pediatric Rheumatology, University Hospital 12 de Octubre, Av Cordoba s/n, 28041 Madrid, Spain; Department of Public Health & Maternal and Child Health, Complutense University of Madrid, Plaza de Ramón y Cajal s/n, 28040 Madrid, Spain
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13
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Puzenat E, Mathevet R, Brischoux-Boucher E, Quartier P, Bustamante J, Hovnanian A, Voidey M, Aubin F. Mutations gain de fonction hétérozygotes de JAK1 : une cause rare et traitable de dermatite atopique sévère. Ann Dermatol Venereol 2020. [DOI: 10.1016/j.annder.2020.09.395] [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: 10/22/2022]
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Abstract
Cardiovascular disease is a worldwide main cause of morbidity and mortality. Treatment alternatives include the use of cardiovascular implants that have generated a constant search for materials, and transformation processes that provide structures similar to those that need to be replaced. Among the biomaterials available for vascular implants, silk fibroin (SF) is of great interest because it is a natural, biodegradable, biocompatible protein. In addition, SF has outstanding mechanical properties and can be easily processed by various techniques. This article presents a general review of SF, its potential use as a biomaterial for vascular applications, and modifications that improve its hemocompatibility.
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Affiliation(s)
- Melissa Puerta
- Grupo de Investigación sobre Nuevos Materiales (GINUMA), Escuela de Ingeniería, and Grupo de Dinámica Cardiovascular (GDC), Escuela de Ciencias de la Salud, Universidad Pontificia Bolivariana, Circular 1ra #70-01, 0500031, Medellín, Antioquia, Colombia
| | - Y Montoya
- Grupo de Investigación sobre Nuevos Materiales (GINUMA), Escuela de Ingeniería, and Grupo de Dinámica Cardiovascular (GDC), Escuela de Ciencias de la Salud, Universidad Pontificia Bolivariana, Circular 1ra #70-01, 0500031, Medellín, Antioquia, Colombia
| | - J Bustamante
- Grupo de Investigación sobre Nuevos Materiales (GINUMA), Escuela de Ingeniería, and Grupo de Dinámica Cardiovascular (GDC), Escuela de Ciencias de la Salud, Universidad Pontificia Bolivariana, Circular 1ra #70-01, 0500031, Medellín, Antioquia, Colombia
| | - A Restrepo-Osorio
- Grupo de Investigación sobre Nuevos Materiales (GINUMA), Escuela de Ingeniería, and Grupo de Dinámica Cardiovascular (GDC), Escuela de Ciencias de la Salud, Universidad Pontificia Bolivariana, Circular 1ra #70-01, 0500031, Medellín, Antioquia, Colombia
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St-Denis T, Yazda K, Capaldi X, Bustamante J, Safari M, Miyahara Y, Zhang Y, Grutter P, Reisner W. An apparatus based on an atomic force microscope for implementing tip-controlled local breakdown. Rev Sci Instrum 2019; 90:123703. [PMID: 31893796 DOI: 10.1063/1.5129665] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Accepted: 11/30/2019] [Indexed: 06/10/2023]
Abstract
Solid-state nanopores are powerful tools for sensing of single biomolecules in solution. Fabrication of solid-state nanopores is still challenging, however; in particular, new methods are needed to facilitate the integration of pores with larger nanofluidic and electronic device architectures. We have developed the tip-controlled local breakdown (TCLB) approach, in which an atomic force microscope (AFM) tip is brought into contact with a silicon nitride membrane that is placed onto an electrolyte reservoir. The application of a voltage bias at the AFM tip induces a dielectric breakdown that leads to the formation of a nanopore at the tip position. In this work, we report on the details of the apparatus used to fabricate nanopores using the TCLB method, and we demonstrate the formation of nanopores with smaller, more controlled diameters using a current limiting circuit that zeroes the voltage upon pore formation. Additionally, we demonstrate the capability of TCLB to fabricate pores aligned to embedded topographical features on the membranes.
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Affiliation(s)
- T St-Denis
- Physics Department, McGill University, 3600 rue University, Montreal, Quebec H3A 2T8, Canada
| | - K Yazda
- Physics Department, McGill University, 3600 rue University, Montreal, Quebec H3A 2T8, Canada
| | - X Capaldi
- Physics Department, McGill University, 3600 rue University, Montreal, Quebec H3A 2T8, Canada
| | - J Bustamante
- Physics Department, McGill University, 3600 rue University, Montreal, Quebec H3A 2T8, Canada
| | - M Safari
- Norcada, 4548-99 Street NW, Edmonton, Alberta T6E 5H5, Canada
| | - Y Miyahara
- Physics Department, McGill University, 3600 rue University, Montreal, Quebec H3A 2T8, Canada
| | - Y Zhang
- Physics Department, McGill University, 3600 rue University, Montreal, Quebec H3A 2T8, Canada
| | - P Grutter
- Physics Department, McGill University, 3600 rue University, Montreal, Quebec H3A 2T8, Canada
| | - W Reisner
- Physics Department, McGill University, 3600 rue University, Montreal, Quebec H3A 2T8, Canada
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Gallardo F, Martin C, Chang L, Diaz JF, Bustamante J, Rubino P. Utilidad de las Escalas de Gradación en el Tratamiento Quirúrgico de Malformaciones Arteriovenosas Cerebrales. Surg Neurol Int 2019; 10:S46-S57. [PMID: 32300491 PMCID: PMC7159054 DOI: 10.25259/sni_454_2019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Accepted: 09/02/2019] [Indexed: 11/26/2022] Open
Abstract
Introducción: Las malformaciones arteriovenosas (MAVs) cerebrales comprenden una compleja pato-logía responsable de hasta el 38% de las hemorragias en pacientes de entre 15-45 años, acarreando cada episodio de sangrado un 25-50% de morbilidad y un 10-20% de mortalidad. La decisión terapéu-tica en un paciente con una MAV debe tener en cuenta la comparación entre los riesgos propios de la intervención y los de la historia natural de esta enfermedad. Objetivo: Evaluar la utilidad de predecir riesgo quirúrgico de diferentes escalas de gradación de MAV cerebrales según nuestra experiencia en una serie de casos. Material y Métodos: Se realizó un análisis bibliográfico de escalas de gradación de riesgo quirúrgico de MAV cerebrales utilizando como motor de búsqueda Pubmed incluyendo como palabras clave “malformación arteriovenosa cerebral”y “scala de gradación” (brain arteriovenous and malfor- mation grading scale). Se analizaron de forma retrospectiva aquellos pacientes intervenidos quirúrgi-camente por MAV en este hospital público, se las clasificó acorde a las escalas analizadas y se compa-raron los resultados obtenidos con los previstos en ellas. Resultados: Se analizaron 90 pacientes intervenidos quirúrgicamente por MAV, sin tratamiento coad-yuvante. De forma retrospectiva se los agrupó acorde a las escalas de Spetzler Martin (SM), Spetzler-Ponce (SP) y suplementaria de Lawton. Las MAV grado 3 se subclasificaron según las escalas de Lawton y de de Oliveira. Considerando buenos resultados aquellos con Rankin modificado (mRs) igual o menor a 2. Con un rango de seguimiento de 12 a 48 meses, encontramos buenos resultados en el 100% de MAV SM grado 1, 91.7% de las grado 2, 80% en grado 3 y 42.9% en grado 4. Utilizando la escala SP, 93.7% de buenos resultados en tipo A, 80% en tipo B y 42.9% en tipo C. Subclasifican-do las MAV SM 3 acorde a las escalas de de Oliveira y Lawton, 84% de buenos resultados en el tipo 3A, 71.3% en las 3B, 92% en MAV tipo 3-, 72.1% en el tipo 3+, 60% en tipo 3. Utilizando la escala suplementaria de Lawton combinada con SM, buen resultado en 100% grados II y III, 85,7% grado IV, 87,6 grado V, 80% grado VI, 75% grado VII y 66,6% grado VIII. Conclusión: Reafirmamos en esta serie, la utilidad de estimar riesgo quirúrgico con las escalas SM, SP, y la subclasificación de las MAV grado 3 propuesta por Lawton. Y principalmente el utilizar la escala suplementaria de Lawton-Young al considerar el tratamiento quirúrgico de los pacientes con MAV que sangraron.
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Lores-Arnaiz S, Lombardi P, Karadayian A, Cutrera R, Bustamante J. Changes in motor function and brain cortex mitochondrial active oxygen species production in aged mice. Exp Gerontol 2019; 118:88-98. [DOI: 10.1016/j.exger.2019.01.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 12/10/2018] [Accepted: 01/11/2019] [Indexed: 10/27/2022]
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Arístegui Fernández J, González Pérez-Yarza E, Mellado Peña MJ, Rodrigo Gonzalo de Liria C, Hernández Sampelayo T, García García JJ, Ruiz Contreras J, Moreno Pérez D, Garrote Llanos E, Ramos Amador JT, Cilla Eguiluz CG, Méndez Hernández M, Aristegui J, Garrote E, Larrauri A, Pérez-Yarza E, Cilla G, Unsain M, Contreras JR, García-Ochoa E, Gordillo J, Sampelayo TH, Rodríguez R, González F, Mellado M, Calvo C, Méndez A, Bustamante J, Salas D, Lacasta C, Ramos J, Illán M, Mendez M, Barjuan M, García J, Urraca S, Caballero M, Launes C, Rodrigo C, Fàbregas A, Esmel R, Antón A, Moreno D, Valdivielso A, Piñero P, Carazo B. Hospitalizaciones infantiles asociadas a infección por virus de la gripe en 6 ciudades de España (2014-2016). An Pediatr (Barc) 2019; 90:86-93. [DOI: 10.1016/j.anpedi.2018.06.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Revised: 06/21/2018] [Accepted: 06/22/2018] [Indexed: 12/20/2022] Open
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Kottler D, Rosain J, Picard-Dahan C, Deschamps L, Borie R, Bustamante J, Descamps V. Syndrome de déficience en HLA de classe 1 secondaire à une mutation de TAP1 responsable d’une granulomatose chronique associé à des surinfections bronchiques. Ann Dermatol Venereol 2018. [DOI: 10.1016/j.annder.2018.09.414] [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: 11/30/2022]
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Adell JA, Bustamante J, Merino JJ, Quesada JM. Generalized Jacobi-Weierstrass operators and Jacobi expansions. J Inequal Appl 2018; 2018:153. [PMID: 30137740 PMCID: PMC6022552 DOI: 10.1186/s13660-018-1747-2] [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] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/16/2018] [Accepted: 06/20/2018] [Indexed: 06/08/2023]
Abstract
We present a realization for some K-functionals associated with Jacobi expansions in terms of generalized Jacobi-Weierstrass operators. Fractional powers of the operators as well as results concerning simultaneous approximation and Nikolskii-Stechkin type inequalities are also considered.
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Affiliation(s)
- José A. Adell
- Departamento de Métodos Estadísticos, Facultad de Ciencias, Universidad de Zaragoza, Zaragoza, Spain
| | - Jorge Bustamante
- Facultad de Ciencias Físico-Matemáticas, Benemérita Universidad Autónoma de Puebla, Puebla, México
| | - Juan J. Merino
- Departamento de Matemáticas, Universidad de Jaén, Jaén, Spain
| | - José M. Quesada
- Departamento de Matemáticas, Universidad de Jaén, Jaén, Spain
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El Azbaoui S, Sabri A, Ouraini S, Hassani A, Asermouh A, Agadr A, Abilkassem R, Dini N, Kmari M, Akhaddar A, Laktati Z, Aieche S, El Hafidi N, Ben Brahim F, Bousfiha AA, Ailal F, Deswarte C, Schurr E, Amar L, Bustamante J, Boisson-Dupuis S, Casanova JL, Abel L, El Baghdadi J. Utility of the QuantiFERON-TB Gold In-Tube assay for the diagnosis of tuberculosis in Moroccan children. Int J Tuberc Lung Dis 2018; 20:1639-1646. [PMID: 27931340 DOI: 10.5588/ijtld.16.0382] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
SETTING The utility of interferon-gamma release assays (IGRAs), such as the QuantiFERON-TB Gold In-Tube (QFT-GIT) test, in diagnosing active tuberculosis (TB) in children is unclear and depends on the epidemiological setting. OBJECTIVE To evaluate the performance of QFT-GIT for TB diagnosis in children living in Morocco, an intermediate TB incidence country with high bacille Calmette-Gurin vaccination coverage. DESIGN We prospectively recruited 109 Moroccan children hospitalised for clinically suspected TB, all of whom were tested using QFT-GIT. RESULTS For 81 of the 109 children, the final diagnosis was TB. The remaining 28 children did not have TB. QFT-GIT had a sensitivity of 66% (95%CI 5277) for the diagnosis of TB, and a specificity of 100% (95%CI 88100). The tuberculin skin test (TST) had lower sensitivity, at 46% (95%CI 3360), and its concordance with QFT-GIT was limited (69%). Combining QFT-GIT and TST results increased sensitivity to 83% (95%CI 6992). CONCLUSION In epidemiological settings such as those found in Morocco, QFT-GIT is more sensitive than the TST for active TB diagnosis in children. Combining the TST and QFT-GIT would be useful for the diagnosis of active TB in children, in combination with clinical, radiological and laboratory data.
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Affiliation(s)
- S El Azbaoui
- Genetics Unit, Mohammed V Military Hospital, Rabat, Faculty of ScienceKenitra IbnTofail University, Kenitra
| | - A Sabri
- Genetics Unit, Mohammed V Military Hospital, Rabat, Faculty of ScienceKenitra IbnTofail University, Kenitra
| | - S Ouraini
- Ear, Nose, Throat Department, Head and Neck Surgery, Medical and Pharmacy School of Rabat, Mohammed V Military Hospital, University of Mohammed V, Rabat
| | - A Hassani
- Department of Paediatrics, Mohammed V Military Hospital, Medical and Pharmacy School of Rabat, University of Mohammed V, Rabat
| | - A Asermouh
- Department of Paediatric Infectious Diseases, Rabat Childrens Hospital, Rabat
| | - A Agadr
- Department of Paediatrics, Mohammed V Military Hospital, Medical and Pharmacy School of Rabat, University of Mohammed V, Rabat
| | - R Abilkassem
- Department of Paediatrics, Mohammed V Military Hospital, Medical and Pharmacy School of Rabat, University of Mohammed V, Rabat
| | - N Dini
- Department of Paediatrics, Mohammed V Military Hospital, Medical and Pharmacy School of Rabat, University of Mohammed V, Rabat
| | - M Kmari
- Department of Paediatrics, Mohammed V Military Hospital
| | - A Akhaddar
- Department of Neurosurgery, Avicenne Military Hospital, Marrakech, University of Mohammed V Souissi, Rabat
| | - Z Laktati
- Genetics Unit, Mohammed V Military Hospital, Rabat, Faculty of Sciences of Rabat, University of Mohammed V, Rabat
| | - S Aieche
- Genetics Unit, Mohammed V Military Hospital, Rabat, Faculty of Sciences of Rabat, University of Mohammed V, Rabat
| | - N El Hafidi
- Medical and Pharmacy School of Rabat, University of Mohammed V, Rabat, Department of Paediatric Infectious Diseases, Rabat Childrens Hospital, Rabat
| | - F Ben Brahim
- Department of Paediatric Infectious Diseases, Rabat Childrens Hospital, Rabat
| | - A A Bousfiha
- Clinical Immunology Unit, Casablanca Childrens Hospital, Ibn Rochd Medical School
| | - F Ailal
- Department of Paediatric Infectious Diseases, Ibn Rochd Hospital University Centre, King Hassan II University, Casablanca, Morocco
| | - C Deswarte
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, Institut National de la Sant et de la Recherche Mdicale Unit 1163, Paris, Imagine Institute, Paris Descartes University, Paris, France
| | - E Schurr
- McGill Centre for the Study of Host Resistance, The Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada
| | - L Amar
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, Institut National de la Sant et de la Recherche Mdicale Unit 1163, Paris, Imagine Institute, Paris Descartes University, Paris, France
| | - J Bustamante
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, Institut National de la Sant et de la Recherche Mdicale Unit 1163, Paris, Imagine Institute, Paris Descartes University, Paris, France, Center for the Study of Primary Immunodeficiencies, Assistance Publique-Hpitaux de Paris (AP-HP), Necker Hospital, Paris, France
| | - S Boisson-Dupuis
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, Institut National de la Sant et de la Recherche Mdicale Unit 1163, Paris, Imagine Institute, Paris Descartes University, Paris, France
| | - J L Casanova
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, Institut National de la Sant et de la Recherche Mdicale Unit 1163, Paris, Imagine Institute, Paris Descartes University, Paris, France, St Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, Howard Hughes Medical Institute, New York, New York, USA, Paediatric Haematology-Immunology Unit, AP-HP, Necker Hospital, Paris, France
| | - L Abel
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, Institut National de la Sant et de la Recherche Mdicale Unit 1163, Paris, Imagine Institute, Paris Descartes University, Paris, France, St Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York
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Bustamante J, Panzarino JF, Rupert TJ, Loudon C. Forces to pierce cuticle of tarsi and material properties determined by nanoindentation: The Achilles' heel of bed bugs. Biol Open 2017; 6:1541-1551. [PMID: 28935816 PMCID: PMC5665471 DOI: 10.1242/bio.028381] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
The mechanical properties of bed bug (Cimex lectularius L.) tarsi and pretarsi were investigated in order to evaluate their vulnerability to piercing by plant trichomes (sharp microscopic hairs). Nanoindentation was used to measure the force required to insert a sharp probe into the cuticle of these different regions, as well as to determine creep and reduced elastic moduli for the cuticle. Scanning electron microscopy was used to visualize the indents that had been generated by nanoindentation. The force required to insert a cube corner nanoindenter probe into the cuticle was determined for a range of displacements (1 to 9 μm) and strain rates (0.003 to 0.5 s-1). Greater force was required to insert this sharp probe at greater depth or at faster strain rates. A specific region of the pretarsus (membrane with microtrichia) more frequently pierced by trichomes during bed bug locomotion required approximately 20-30% less force, exhibited more creep, and had a lower reduced elastic modulus for the first micron of indentation compared to the other regions; although this pattern was not consistent for greater displacements. These mechanical attributes, which will facilitate the initial stage of puncture in addition to the presence of natural infoldings in the cuticle of this area, may make that area of the pretarsus particularly vulnerable to piercing. This information will help inform development of physical methods for control of insect pests such as bed bugs.
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Affiliation(s)
- Jorge Bustamante
- Department of Ecology and Evolutionary Biology, University of California at Irvine, Irvine, CA 92697, USA
| | - Jason F Panzarino
- Department of Mechanical and Aerospace Engineering, University of California at Irvine, Irvine, CA 92697, USA
| | - Timothy J Rupert
- Department of Mechanical and Aerospace Engineering, University of California at Irvine, Irvine, CA 92697, USA
| | - Catherine Loudon
- Department of Ecology and Evolutionary Biology, University of California at Irvine, Irvine, CA 92697, USA
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Santana C, Hoyos L, Pérez J, Bustamante J, García A. A novel functionalization method for carbon nanotubes to repel ox-LDL in treatments after stent placement. Materials Science and Engineering: C 2017. [DOI: 10.1016/j.msec.2017.05.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Sosa F, Bustamante J, Rodríguez F, Argañaraz R, Rubino P, Lambre J. [Foreign accent syndrome after aneurysmal disappearance due to AVM treatment]. Surg Neurol Int 2017; 8:S1-S4. [PMID: 28480115 PMCID: PMC5402325 DOI: 10.4103/2152-7806.203165] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2016] [Accepted: 10/26/2016] [Indexed: 12/04/2022] Open
Abstract
Introducción: Los aneurismas asociados a malformaciones arteriovenosas (MAV) son lesiones vasculares que suelen encontrarse hasta en el 15% de los casos, incrementando el riesgo global de hemorragia. La conducta frente a los aneurismas asociados es dicotómica en la literatura, mientras existen reportes de la desaparición de los mismos luego de la exéresis de la MAV, otros artículos enfatizan su tratamiento precoz. El síndrome del acento extranjero es un raro trastorno neurológico en el que el paciente habla su lengua materna como lo haría una persona extranjera y suena con “acento” extranjero a oídos de los oyentes nativos. Objetivo: Presentar un paciente que desarrolla el síndrome del acento extranjero posterior a la exéresis de una MAV y la evolución de un aneurisma asociado. Presentación de caso: Paciente pediátrico que luego de la exéresis de una MAV fronto-opercular posterior izquierda remite por completo un aneurisma de hiperflujo asociado, presentando en el postquirúrgico el síndrome del acento extranjero. Conclusión: Queda reportado el caso de este raro síndrome y la resolución espontánea de un aneurisma proximal luego de la exéresis de una MAV.
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Affiliation(s)
- Fidel Sosa
- Servicio de Neurocirugía, Hospital El Cruce SAMIC, Florencio Varela, Buenos Aires, Argentina
| | - Jorge Bustamante
- Servicio de Neurocirugía, Hospital El Cruce SAMIC, Florencio Varela, Buenos Aires, Argentina
| | - Facundo Rodríguez
- Servicio de Neurocirugía, Hospital El Cruce SAMIC, Florencio Varela, Buenos Aires, Argentina
| | - Romina Argañaraz
- Servicio de Neurocirugía, Hospital El Cruce SAMIC, Florencio Varela, Buenos Aires, Argentina
| | - Pablo Rubino
- Servicio de Neurocirugía, Hospital El Cruce SAMIC, Florencio Varela, Buenos Aires, Argentina
| | - Jorge Lambre
- Servicio de Neurocirugía, Hospital El Cruce SAMIC, Florencio Varela, Buenos Aires, Argentina
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Gastaca M, Bilbao I, Jimenez M, Bustamante J, Dopazo C, Gonzalez R, Charco R, Santoyo J, Ortiz de Urbina J. Safety and Efficacy of Early Everolimus When Calcineurin Inhibitors Are Not Recommended in Orthotopic Liver Transplantation. Transplant Proc 2017; 48:2506-2509. [PMID: 27742336 DOI: 10.1016/j.transproceed.2016.08.027] [Citation(s) in RCA: 5] [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: 12/18/2022]
Abstract
Our aim was to study the safety and efficacy of immunosuppression with everolimus (EVL) within the 1st month after orthotopic liver transplantation (LT) when calcineurin inhibitors are not recommended. For this purpose, 28 recipients who had been treated with EVL within the 1st month after adult LT were eligible to enter in a retrospective multicenter study. Patients were followed up for 12 months after LT. EVL therapy was initiated at a median of 14 days (range, 4-24) after LT. The reason for early EVL was neurotoxicity in 14 cases, renal dysfunction in 12, and acute cellular rejection combined with renal impairment in 2. In 23 patients, immunosuppression was EVL + mycophenolate mofetil/mycophenolate sodium + steroids, and EVL + tacrolimus + steroids/mycophenolate sodium was used in 4 cases. Neurotoxicity disappeared in all patients. Renal function in patients with renal impairment improved from a median of 32 mL/min/1.73 m2 at the moment of implementation of EVL to 62 mL/min/1.73 m2 at 1 year. Four patients (14.3%) developed acute cellular rejection. We observed incisional hernia in 4 patients (14.3%), hematologic complications in 6 (21.4%), proteinuria in 2 (7.1%), edema and/or effusions in 8 (28.6%), and dyslipidemia in 12 (42.8%). No arterial complications were observed. EVL was withdrawn in 5 patients during the 1st year after LT. One-year patient survival was 92.7%. In conclusion, use of EVL within the 1st month after LT when calcineurin inhibitors are not recommended seems to be an effective therapeutic option with an acceptable safety profile.
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Affiliation(s)
- M Gastaca
- Hepatobiliary Surgery and Liver Transplantation Unit, Cruces University Hospital. University of the Basque Country, Bilbao, Spain.
| | - I Bilbao
- Hepatobiliopancreatic Surgery and Liver Transplant Unit, Hospital Universitario Vall d'Hebron, Barcelona, Spain
| | - M Jimenez
- Unidad de Hepatología-Trasplante Hepático, Hospital Regional Universitario de Malaga, Malaga, Spain
| | - J Bustamante
- Hepatology Unit, Cruces University Hospital, University of the Basque Country, Bilbao, Spain
| | - C Dopazo
- Hepatobiliopancreatic Surgery and Liver Transplant Unit, Hospital Universitario Vall d'Hebron, Barcelona, Spain
| | - R Gonzalez
- Unidad de Hepatología-Trasplante Hepático, Hospital Regional Universitario de Malaga, Malaga, Spain
| | - R Charco
- Hepatobiliopancreatic Surgery and Liver Transplant Unit, Hospital Universitario Vall d'Hebron, Barcelona, Spain
| | - J Santoyo
- Unidad de Cirugía Hepatobiliar-Trasplante Hepático, Hospital Regional Universitario de Malaga, Malaga, Spain
| | - J Ortiz de Urbina
- Hepatobiliary Surgery and Liver Transplantation Unit, Cruces University Hospital. University of the Basque Country, Bilbao, Spain
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El Azbaoui S, Alaoui Mrani N, Sabri A, Jouhadi Z, Ailal F, Bousfiha AA, Najib J, El Hafidi N, Deswarte C, Schurr E, Bustamante J, Boisson-Dupuis S, Casanova JL, Abel L, El Baghdadi J. Pott's disease in Moroccan children: clinical features and investigation of the interleukin-12/interferon-γ pathway. Int J Tuberc Lung Dis 2016; 19:1455-62. [PMID: 26614186 DOI: 10.5588/ijtld.15.0290] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
SETTING Tuberculosis spondylodiscitis (TS), or Pott's disease, an extra-pulmonary form of tuberculosis (TB), is rare and difficult to diagnose in children. Some cases of severe TB in children were recently explained by inborn errors of immunity affecting the interleukin-12/interferon-gamma (IL-12/IFN-γ) axis. OBJECTIVE To analyse clinical data on Moroccan children with TS, and to perform immunological and genetic explorations of the IL-12/IFN-γ axis. DESIGN We studied nine children with TS diagnosed between 2012 and 2014. We investigated the IL-12/IFN-γ circuit by both whole-blood assays and sequencing of the coding regions of 14 core genes of this pathway. RESULTS A diagnosis of TS was based on a combination of clinical, biological, histological and radiological data. QuantiFERON(®)-TB Gold In-Tube results were positive in 75% of patients. Whole-blood assays showed normal IL-12 and IFN-γ production in all but one patient, who displayed impaired decreased response to IL-12. No candidate disease-causing mutations were detected in the exonic regions of the 14 genes. CONCLUSIONS TS diagnosis in children remains challenging, and is based largely on imaging. Further investigations of TS in children are required to determine the role of genetic defects in pathways that may or may not be related to the IL-12/IFN-γ axis.
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Affiliation(s)
- S El Azbaoui
- Genetics Unit, Military Hospital Mohamed V, Hay Riad, Rabat, Morocco; Faculty of Science-Kenitra, Ibn Tofail University, Kenitra, Morocco
| | - N Alaoui Mrani
- Department of Paediatric Surgery, Rabat Children Hospital, Medical and Pharmacy School of Rabat, Mohamed V University, Rabat, Morocco
| | - A Sabri
- Genetics Unit, Military Hospital Mohamed V, Hay Riad, Rabat, Morocco; Faculty of Science-Kenitra, Ibn Tofail University, Kenitra, Morocco
| | - Z Jouhadi
- Department of Paediatric Infectious Diseases, Ibn Rochd Hospital University Centre, King Hassan II University, Casablanca, Morocco
| | - F Ailal
- Department of Paediatric Infectious Diseases, Ibn Rochd Hospital University Centre, King Hassan II University, Casablanca, Morocco
| | - A A Bousfiha
- Department of Paediatric Infectious Diseases, Ibn Rochd Hospital University Centre, King Hassan II University, Casablanca, Morocco
| | - J Najib
- Department of Paediatric Infectious Diseases, Ibn Rochd Hospital University Centre, King Hassan II University, Casablanca, Morocco
| | - N El Hafidi
- Department of Paediatrics, Medical and Pharmacy School of Rabat, Rabat Children Hospital, Rabat, Morocco
| | - C Deswarte
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, Institut National de la Santé et de la Recherche Médicale Unit 1163, Paris, France
| | - E Schurr
- McGill International TB Centre, The Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada
| | - J Bustamante
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, Institut National de la Santé et de la Recherche Médicale Unit 1163, Paris, France; Imagine Institute, Paris Descartes University, Paris, France; Centre for the Study of Primary Immunodeficiencies, Assistance Publique-Hôpitaux de Paris, Necker Hospital for Sick Children, Paris, France
| | - S Boisson-Dupuis
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, Institut National de la Santé et de la Recherche Médicale Unit 1163, Paris, France; Imagine Institute, Paris Descartes University, Paris, France; St Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, USA
| | - J-L Casanova
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, Institut National de la Santé et de la Recherche Médicale Unit 1163, Paris, France; Imagine Institute, Paris Descartes University, Paris, France; St Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, USA; Howard Hughes Medical Institute, New York, New York, USA; Paediatric Haematology-Immunology Unit, Necker Hospital for Sick Children, Paris, France, France
| | - L Abel
- Department of Paediatrics, Medical and Pharmacy School of Rabat, Rabat Children Hospital, Rabat, Morocco; Imagine Institute, Paris Descartes University, Paris, France; St Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, USA
| | - J El Baghdadi
- Genetics Unit, Military Hospital Mohamed V, Hay Riad, Rabat, Morocco
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Orozco-Duque A, Duque SI, Ugarte JP, Tobon C, Novak D, Kremen V, Castellanos-Dominguez G, Saiz J, Bustamante J. Fractionated electrograms and rotors detection in chronic atrial fibrillation using model-based clustering. Annu Int Conf IEEE Eng Med Biol Soc 2016; 2014:1579-82. [PMID: 25570273 DOI: 10.1109/embc.2014.6943905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
The identification of atrial fibrillation (AF) substrates is needed to improve ablation therapy guided by electrograms, although mechanisms that sustain AF are not fully understood. Detection of complex fractionated atrial electrograms (CFAE) is used for this purpose. Nonetheless, efficacy of this method is inadequate in the case of chronic AF. Recent hypothesis proposes the rotors as fibrillatory substrate. Novel approaches seek to relate CFAE with rotor; nevertheless, such methods are not able to identify the associated substrate. Furthermore, the patterns that characterize CFAE generated by rotors remain unknown. Thus, tracking of rotors is an unsolved issue. In this paper, we propose a non-supervised method to find patterns associated with fibrillatory substrates in chronic AF. We extracted two features based on local activation wave detection and one feature based on non-linear dynamics. Gaussian mixture model-based clustering was used to discriminate CFAE patterns. Resulting clusters are visualized in an electroanatomic map. We assessed the proposed method in a real database labeled according to the level of fractionation and in a simulated episode of chronic AF in which a rotor was detected. Our results indicate that the method proposed can separate different levels of fractionation in CFAE, and provide evidence that clustering can be used to locate the vortex of the rotors. Provided approach can support ablation therapy procedures by means of CFAE patterns discrimination.
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Milleret A, Bost-Bru C, Bustamante J, Durand C, Recule C. [Bacillus Calmette-Guérin osteomyelitis. A case report in a former preterm baby]. Arch Pediatr 2016; 23:738-41. [PMID: 27265583 DOI: 10.1016/j.arcped.2016.04.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2015] [Revised: 11/25/2015] [Accepted: 04/21/2016] [Indexed: 11/28/2022]
Abstract
Postvaccination osteo-articular mycobacterial infectious disease is a rare and potentially serious complication after Bacillus Calmette-Guérin (BCG) vaccine. We report on a case of a former preterm baby born at 30 weeks of gestation who was vaccinated with BCG Copenhagen strain at 2 months of age. He presented 6 months later with a painful limp, which was found to be a mono-articular osteitis of the right ankle. Histology of the biopsy showed signs of mycobacterial infection and molecular analysis confirmed a BCG infection. Blood tests did not reveal any immunodeficiency associated with the disease (IFN-gamma levels were normal). The course of the disease was favorable with 9 months of antibiotic therapy against mycobacteria. BCG complications should lead to screening for immunodeficiency. The prognosis of BCG osteitis is excellent if the disease is localized. No link between prematurity and BCG complications has been found to date. BCG vaccination of premature infant should be the same as for the general population.
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Affiliation(s)
- A Milleret
- Service de pédiatrie polyvalente, hôpital couple enfant, CHU de Grenoble, avenue Maquis-du-Grésivaudan, 38700 La Tronche, France.
| | - C Bost-Bru
- Service de pédiatrie polyvalente, hôpital couple enfant, CHU de Grenoble, avenue Maquis-du-Grésivaudan, 38700 La Tronche, France
| | - J Bustamante
- Centre d'étude des déficits immunitaires, hôpital Necker-enfants-malades AP-HP, 75015 Paris, France
| | - C Durand
- Service d'imagerie pédiatrique, hôpital couple enfant, CHU de Grenoble, avenue Maquis-du-Grésivaudan, 38700 La Tronche, France
| | - C Recule
- Institut de biologie et de pathologie, hôpital couple enfant, CHU de Grenoble, avenue Maquis-du-Grésivaudan, 38700 La Tronche, France
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Grant AV, Sabri A, Abid A, Abderrahmani Rhorfi I, Benkirane M, Souhi H, Naji Amrani H, Alaoui-Tahiri K, Gharbaoui Y, Lazrak F, Sentissi I, Manessouri M, Belkheiri S, Zaid S, Bouraqadi A, El Amraoui N, Hakam M, Belkadi A, Orlova M, Boland A, Deswarte C, Amar L, Bustamante J, Boisson-Dupuis S, Casanova JL, Schurr E, El Baghdadi J, Abel L. A genome-wide association study of pulmonary tuberculosis in Morocco. Hum Genet 2016; 135:299-307. [PMID: 26767831 DOI: 10.1007/s00439-016-1633-2] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [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] [Received: 08/09/2015] [Accepted: 01/04/2016] [Indexed: 01/04/2023]
Abstract
Although epidemiological evidence suggests a human genetic basis of pulmonary tuberculosis (PTB) susceptibility, the identification of specific genes and alleles influencing PTB risk has proven to be difficult. Previous genome-wide association (GWA) studies have identified only three novel loci with modest effect sizes in sub-Saharan African and Russian populations. We performed a GWA study of 550,352 autosomal SNPs in a family-based discovery Moroccan sample (on the full population and on the subset with PTB diagnosis at <25 years), which identified 143 SNPs with p < 1 × 10(-4). The replication study in an independent case/control sample identified four SNPs displaying a p < 0.01 implicating the same risk allele. In the combined sample including 556 PTB subjects and 650 controls these four SNPs showed suggestive association (2 × 10(-6) < p < 4 × 10(-5)): rs358793 and rs17590261 were intergenic, while rs6786408 and rs916943 were located in introns of FOXP1 and AGMO, respectively. Both genes are involved in the function of macrophages, which are the site of latency and reactivation of Mycobacterium tuberculosis. The most significant finding (p = 2 × 10(-6)) was obtained for the AGMO SNP in an early (<25 years) age-at-onset subset, confirming the importance of considering age-at-onset to decipher the genetic basis of PTB. Although only suggestive, these findings highlight several avenues for future research in the human genetics of PTB.
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Affiliation(s)
- A V Grant
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, Institut National de la Santé et de la Recherche Médicale U1163, 75015, Paris, France, EU
- Paris Descartes University, Imagine Institute, 75015, Paris, France, EU
| | - A Sabri
- Genetics Unit, Military Hospital Mohammed V, Hay Riad, 10100, Rabat, Morocco
- Faculty of Sciences-Kenitra, Ibn Tofail University, Kenitra, Morocco
| | - A Abid
- Department of Pneumology, Military Hospital Mohammed V, Hay Riad, 10100, Rabat, Morocco
| | - I Abderrahmani Rhorfi
- Department of Pneumology, Military Hospital Mohammed V, Hay Riad, 10100, Rabat, Morocco
| | - M Benkirane
- Blood Transfusion Center, Military Hospital Mohammed V, Hay Riad, 10100, Rabat, Morocco
| | - H Souhi
- Department of Pneumology, Military Hospital Mohammed V, Hay Riad, 10100, Rabat, Morocco
| | - H Naji Amrani
- Department of Pneumology, Military Hospital Mohammed V, Hay Riad, 10100, Rabat, Morocco
| | - K Alaoui-Tahiri
- Department of Pneumology, Military Hospital Mohammed V, Hay Riad, 10100, Rabat, Morocco
| | - Y Gharbaoui
- Department of Pneumology, Military Hospital Mohammed V, Hay Riad, 10100, Rabat, Morocco
| | - F Lazrak
- Centre de Diagnostic de la tuberculose et des Maladies Respiratoires [CDTMR], Salé, Morocco
| | - I Sentissi
- Centre de Diagnostic de la tuberculose et des Maladies Respiratoires [CDTMR], Salé, Morocco
| | - M Manessouri
- Centre de Diagnostic de la tuberculose et des Maladies Respiratoires [CDTMR], Salé, Morocco
| | - S Belkheiri
- Centre de Diagnostic de la tuberculose et des Maladies Respiratoires [CDTMR], Salé, Morocco
| | - S Zaid
- Centre de Diagnostic de la tuberculose et des Maladies Respiratoires [CDTMR], Salé, Morocco
| | - A Bouraqadi
- Centre de Diagnostic de la tuberculose et des Maladies Respiratoires [CDTMR], Salé, Morocco
| | - N El Amraoui
- National Blood Transfusion Center, Rabat, Morocco
| | - M Hakam
- National Blood Transfusion Center, Rabat, Morocco
| | - A Belkadi
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, Institut National de la Santé et de la Recherche Médicale U1163, 75015, Paris, France, EU
- Paris Descartes University, Imagine Institute, 75015, Paris, France, EU
| | - M Orlova
- McGill Centre for the Study of Host Resistance, The Research Institute of the McGill University Health Centre, Montreal, PQ H3G 1A4, Canada
| | - A Boland
- CEA, Institut de Génomique, Centre National de Génotypage, 91000, Evry, France, EU
| | - C Deswarte
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, Institut National de la Santé et de la Recherche Médicale U1163, 75015, Paris, France, EU
- Paris Descartes University, Imagine Institute, 75015, Paris, France, EU
| | - L Amar
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, Institut National de la Santé et de la Recherche Médicale U1163, 75015, Paris, France, EU
- Paris Descartes University, Imagine Institute, 75015, Paris, France, EU
| | - J Bustamante
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, Institut National de la Santé et de la Recherche Médicale U1163, 75015, Paris, France, EU
- Paris Descartes University, Imagine Institute, 75015, Paris, France, EU
- St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, 10065, New York, NY, USA
| | - S Boisson-Dupuis
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, Institut National de la Santé et de la Recherche Médicale U1163, 75015, Paris, France, EU
- Paris Descartes University, Imagine Institute, 75015, Paris, France, EU
- Center for the Study of Primary Immunodeficiencies, AP-HP, Necker hospital, 75015, Paris, France, EU
| | - J L Casanova
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, Institut National de la Santé et de la Recherche Médicale U1163, 75015, Paris, France, EU
- Paris Descartes University, Imagine Institute, 75015, Paris, France, EU
- Center for the Study of Primary Immunodeficiencies, AP-HP, Necker hospital, 75015, Paris, France, EU
- Howard Hughes Medical Institute, New York, NY, USA
- Pediatric Hematology-Immunology Unit, AP-HP, Necker Hospital, 75015, Paris, France, EU
| | - E Schurr
- McGill Centre for the Study of Host Resistance, The Research Institute of the McGill University Health Centre, Montreal, PQ H3G 1A4, Canada
| | - J El Baghdadi
- Genetics Unit, Military Hospital Mohammed V, Hay Riad, 10100, Rabat, Morocco.
| | - L Abel
- Laboratory of Human Genetics of Infectious Diseases, Necker Branch, Institut National de la Santé et de la Recherche Médicale U1163, 75015, Paris, France, EU.
- Paris Descartes University, Imagine Institute, 75015, Paris, France, EU.
- St. Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller Branch, The Rockefeller University, 10065, New York, NY, USA.
- Human Genetics of Infectious Diseases, INSERM, Université Paris Descartes, Unit 1163, Imagine Institute, 24 Bd du Montparnasse, 75105, Paris, France.
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Karkowski L, Bustamante J, Cabon M, Valois A, Perez P, Carassou P, Dutasta F, Cinquetti G. Un déficit immunitaire traité par immunomodulateur. Rev Med Interne 2015. [DOI: 10.1016/j.revmed.2015.10.200] [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: 11/28/2022]
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Orozco-Duque A, Novak D, Kremen V, Bustamante J. Multifractal analysis for grading complex fractionated electrograms in atrial fibrillation. Physiol Meas 2015; 36:2269-84. [DOI: 10.1088/0967-3334/36/11/2269] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Orozco-Duque A, Martinez-Vargas JD, Novak D, Bustamante J, Castellanos-Dominguez G. Feature selection for discrimination of fractionation levels in atrial electrograms. Annu Int Conf IEEE Eng Med Biol Soc 2015; 2014:1595-8. [PMID: 25570277 DOI: 10.1109/embc.2014.6943909] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Radiofrequency catheter ablation of atrial fibrillation (AF) guided by complex fractionated atrial electrograms (CFAE) is associated with a high AF termination rate in paroxysmal AF, but not in persistent. CFAE does not always identify favorable sites for persistent AF ablation. Studies suggest that only high fractionation level should be used as a target site for ablation. Nonetheless, there are not a standardized criterion to defined fractionation levels. Therefore, a better characterization of the signal is required providing a set of more powerful features that should be extracted from CFAE. Due to the apparent difference among fractionation classes in terms of their stochastic variability, we test time-domain and time-frequency based feature extraction approaches. Also, we carried out the symmetrical uncertainty-based feature selection to determine the most relevant features which improve discrimination of fractionation levels. Obtained results on a tested real electrogram database show that most relevant features in time-domain are related with time intervals and not with amplitudes. Nonetheless, time-frequency features obtained more information from the signal and this representation is likely a better suitable discriminating approach, particularly to detect high fractionated electrograms with a sensitivity and specificity of 83.0% and 93.6%, respectively.
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Rodríguez-Adrada E, Puebla García V, Bustamante J, González del Castillo J. El uso de herramientas de ayuda a la prescripción evitaría las intoxicaciones medicamentosas en los ancianos. An Sist Sanit Navar 2014; 37:437-8. [DOI: 10.4321/s1137-66272014000300013] [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: 11/11/2022]
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Ailal F, Tazi A, Bustamante J, Picard C, Najib J, Casanova JL, Bousfiha AA. [Purulent pericarditis and colonic infiltrating to Salmonella enteritidis complicated by acute intussusception in a case of IL-12Rβ1 deficiency]. Arch Pediatr 2014; 21:1348-52. [PMID: 25445126 DOI: 10.1016/j.arcped.2014.09.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2013] [Revised: 10/15/2013] [Accepted: 09/22/2014] [Indexed: 11/30/2022]
Abstract
IL-12 receptor β1 deficiency (IL-12Rβ1) predisposes patients to mycobacteria and Salmonella infections. We report a case of IL-12Rβ1 deficiency with a fatal multi-resistant Salmonella enteritidis infection. This boy was born after from a consanguineous marriage, and diagnosed as having a IL-12Rβ1 deficiency since the age of 3 months. He presented with recurrent Salmonella enteritidis essentially digestive localization, complicated by purulent pericarditis at the same germ at the age of two and a half years. At the age of 3, a colonic infiltration due to a Salmonella enteritidis resistant to antibiotics, was complicated by acute intussusception, and the child died. The IL-12Rβ1 deficiency is considered as having a good prognosis, in contrast to what happened in our patient. We review therapeutic issues in these patients.
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Affiliation(s)
- F Ailal
- Unité d'immunologie clinique, service de pédiatrie 1, hôpital d'Enfants Abderrahim Harouchi, CHU Ibn Rochd, Casablanca, Maroc.
| | - A Tazi
- Unité d'immunologie clinique, service de pédiatrie 1, hôpital d'Enfants Abderrahim Harouchi, CHU Ibn Rochd, Casablanca, Maroc
| | - J Bustamante
- Laboratoire de génétique humaine des maladies infectieuses, institut national de la santé et de la recherche médicale, U980, 75015 Paris, France; Faculté de médecine de Necker, université Paris René-Descartes-Cité Sorbonne, 75015 Paris, France; Centre d'études des déficits immunitaires (CEDI), hôpital Necker-Enfants-Malades, 75015 Paris, France
| | - C Picard
- Laboratoire de génétique humaine des maladies infectieuses, institut national de la santé et de la recherche médicale, U980, 75015 Paris, France; Faculté de médecine de Necker, université Paris René-Descartes-Cité Sorbonne, 75015 Paris, France; Centre d'études des déficits immunitaires (CEDI), hôpital Necker-Enfants-Malades, 75015 Paris, France
| | - J Najib
- Unité d'immunologie clinique, service de pédiatrie 1, hôpital d'Enfants Abderrahim Harouchi, CHU Ibn Rochd, Casablanca, Maroc
| | - J-L Casanova
- Laboratoire de génétique humaine des maladies infectieuses, institut national de la santé et de la recherche médicale, U980, 75015 Paris, France; Faculté de médecine de Necker, université Paris René-Descartes-Cité Sorbonne, 75015 Paris, France; Saint-Giles Laboratory of Human Genetics of Infectious Diseases, The Rockefeller, University, New York, États-Unis
| | - A A Bousfiha
- Unité d'immunologie clinique, service de pédiatrie 1, hôpital d'Enfants Abderrahim Harouchi, CHU Ibn Rochd, Casablanca, Maroc
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Rubino PA, Bottan JS, Houssay A, Salas López E, Bustamante J, Chiarullo M, Lambre J. Three-Dimensional Imaging as a Teaching Method in Anterior Circulation Aneurysm Surgery. World Neurosurg 2014; 82:e467-74. [DOI: 10.1016/j.wneu.2013.02.065] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2012] [Revised: 01/12/2013] [Accepted: 02/13/2013] [Indexed: 11/28/2022]
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Abstract
Insect antennae are important mechanosensory and chemosensory organs. Insect appendages, such as antennae, are encased in a cuticular exoskeleton and are thought to bend only between segments or subsegments where the cuticle is thinner, more flexible, or bent into a fold. There is a growing appreciation of the dominating influence of folds in the mechanical behavior of a structure, and the bending of cricket antennae was considered in this context. Antennae will bend or deflect in response to forces, and the resulting bending behavior will affect the sensory input of the antennae. In some cricket antennae, such as in those of Acheta domesticus, there are a large number (>100) of subsegments (flagellomeres) that vary in their length. We evaluated whether these antennae bend only at the joints between flagellomeres, which has always been assumed but not tested. In addition we questioned whether an antenna undergoes a length change as it bends, which would result from some patterns of joint deformation. Measurements using light microscopy and SEM were conducted on both male and female adult crickets (Acheta domesticus) with bending in four different directions: dorsal, ventral, medial, and lateral. Bending occurred only at the joints between flagellomeres, and antennae shortened a comparable amount during bending, regardless of sex or bending direction. The cuticular folds separating antennal flagellomeres are not very deep, and therefore as an antenna bends, the convex side (in tension) does not have a lot of slack cuticle to “unfold” and does not lengthen during bending. Simultaneously on the other side of the antenna, on the concave side in compression, there is an increasing overlap in the folded cuticle of the joints during bending. Antennal shortening during bending would prevent stretching of antennal nerves and may promote hemolymph exchange between the antenna and head.
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Affiliation(s)
- Catherine Loudon
- Department of Ecology and Evolutionary Biology, University of California-Irvine Irvine, CA, USA
| | - Jorge Bustamante
- Department of Ecology and Evolutionary Biology, University of California-Irvine Irvine, CA, USA
| | - Derek W Kellogg
- Department of Ecology and Evolutionary Biology, University of Kansas Lawrence, KS, USA
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Karadayian AG, Bustamante J, Czerniczyniec A, Cutrera RA, Lores-Arnaiz S. Effect of melatonin on motor performance and brain cortex mitochondrial function during ethanol hangover. Neuroscience 2014; 269:281-9. [PMID: 24713372 DOI: 10.1016/j.neuroscience.2014.03.062] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [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: 05/24/2013] [Revised: 03/28/2014] [Accepted: 03/28/2014] [Indexed: 12/13/2022]
Abstract
Increased reactive oxygen species generation and mitochondrial dysfunction occur during ethanol hangover. The aim of this work was to study the effect of melatonin pretreatment on motor performance and mitochondrial function during ethanol hangover. Male mice received melatonin solution or its vehicle in drinking water during 7 days and i.p. injection with EtOH (3.8 g/kg BW) or saline at the eighth day. Motor performance and mitochondrial function were evaluated at the onset of hangover (6h after injection). Melatonin improved motor coordination in ethanol hangover mice. Malate-glutamate-dependent oxygen uptake was decreased by ethanol hangover treatment and partially prevented by melatonin pretreatment. Melatonin alone induced a decrease of 30% in state 4 succinate-dependent respiratory rate. Also, the activity of the respiratory complexes was decreased in melatonin-pretreated ethanol hangover group. Melatonin pretreatment before the hangover prevented mitochondrial membrane potential collapse and induced a 79% decrement of hydrogen peroxide production as compared with ethanol hangover group. Ethanol hangover induced a 25% decrease in NO production. Melatonin alone and as a pretreatment before ethanol hangover significantly increased NO production by nNOS and iNOS as compared with control groups. No differences were observed in nNOS protein expression, while iNOS expression was increased in the melatonin group. Increased NO production by melatonin could be involved in the decrease of succinate-dependent oxygen consumption and the inhibition of complex IV observed in our study. Melatonin seems to act as an antioxidant agent in the ethanol hangover condition but also exhibited some dual effects related to NO metabolism.
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Affiliation(s)
- A G Karadayian
- Instituto de Bioquímica y Medicina Molecular, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, C1113AAD Buenos Aires, Argentina
| | - J Bustamante
- Instituto de Bioquímica y Medicina Molecular, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, C1113AAD Buenos Aires, Argentina
| | - A Czerniczyniec
- Instituto de Bioquímica y Medicina Molecular, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, C1113AAD Buenos Aires, Argentina
| | - R A Cutrera
- Laboratorio de Neurobiología y Ritmos, Facultad de Medicina, Universidad de Buenos Aires, C1113AAD Buenos Aires, Argentina
| | - S Lores-Arnaiz
- Instituto de Bioquímica y Medicina Molecular, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, C1113AAD Buenos Aires, Argentina.
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Hoffmann R, Bustamante J, Pitsaer C, Voigtländer M, Enderle MD, Claussen CD, Clasen S, Rempp H. Forms of energy delivery during cryo-cooled radiofrequency ablation for optimization of the ablation result. ROFO-FORTSCHR RONTG 2014; 186:945-50. [PMID: 24691837 DOI: 10.1055/s-0034-1366232] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
PURPOSE Energy transfer from radiofrequency (RF) applicator to tissue is both precondition and limiting factor. The purpose of this ex vivo study was to examine the influence of form of energy delivery on ablation result during RF ablation with cryo-cooled applicators. MATERIALS AND METHODS One hundred eight ablations were performed in ex vivo bovine liver under continuous energy delivery (A), pulsed energy delivery with reduced current during ablation pause (B) and impedance-dependent energy delivery. Maximum ablation time was 20 min. Early termination of ablation in case of loss of conductivity. Optimal ablation parameters were assessed. Short axis diameter of the ablation zone and ablation duration were determined. Ablation results under mode A, B and C were compared with analysis of variance and Tukey-Kramer HSD test. Influence of ablation duration on short axis diameter was evaluated with regression analysis. RESULTS Significantly largest short axis diameter (51.1 mm ± SD 2.3; p = 0.01) was reached with impedance-dependent energy delivery (pulsed: 46.1 mm ± SD 5.6; continuous: 44.4 mm ± SD 4.1). Significantly longest ablation duration (1061.6 s ± SD 42.4; p = 0.01) was reached with impedance-dependent energy delivery (pulsed: 815.7 s ± 41.3; continuous: 715.3 s ± SD 82.2). Linear correlation between ablation duration and short axis diameter was calculated (R = 0.7). CONCLUSION Modification of energy delivery during RF ablation with cryo-cooled applicators improves energy transfer to tissue and enables larger ablation zones. KEY POINTS • Impedance-dependent energy delivery prevents early termination in kryo-based RF-ablation,• Impedance-dependent energy delivery enables larger ablation zones than continuous energy delivery,• Reduced current during ablation pause does not improve ablation results.
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Affiliation(s)
- R Hoffmann
- Diagnostic and Interventional Radiology, University Hospital Tübingen
| | - J Bustamante
- Diagnostic and Interventional Radiology, University Hospital Tübingen
| | - C Pitsaer
- ERBE Elektromedizin GmbH, ERBE, Derendingen
| | | | | | - C D Claussen
- Diagnostic and Interventional Radiology, University Hospital Tübingen
| | - S Clasen
- Diagnostic and Interventional Radiology, University Hospital Tübingen
| | - H Rempp
- Diagnostic and Interventional Radiology, University Hospital Tübingen
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Akar HH, Kose M, Ceylan O, Patiroglu T, Bustamante J, Casanova JL, Akyildiz BN, Doganay S. Congenital IL-12R1β receptor deficiency and thrombophilia in a girl homozygous for an IL12RB1 mutation and compound heterozygous for MTFHR mutations: A case report and literature review. Eur J Microbiol Immunol (Bp) 2014; 4:83-7. [PMID: 24678409 DOI: 10.1556/eujmi.4.2014.1.8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2014] [Accepted: 01/21/2014] [Indexed: 11/19/2022] Open
Abstract
Interleukin-12 (IL-12) plays an important role in the production of interferon gamma from T cells and natural killer cells and is essential for protection against intra-macrophagic pathogens such as Mycobacterium and Salmonella. Here, we describe a 16-year-old girl with homozygous mutation in exon 12 of the IL12RB1 gene, which causes complete IL-12Rβ1 deficiency in association with heterozygous mutation (C677T and A1298C) in the methylenetetrahydrofolate reductase gene. She presented with disseminated Mycobacterium tuberculosis complex infection, retroperitoneal fungal abscess and also thrombosis in the superior mesenteric-portal vein junction. This is the first case report of a primary immunodeficiency associated with a genetically determined venous thrombosis.
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Kozlova A, Zinovieva N, Bustamante J, Boisson-Dupuis S, Casanova JL, Shcherbina A. P03-025 – Differential diagnosis of autoimmune disorders. Pediatr Rheumatol Online J 2013. [PMCID: PMC3952576 DOI: 10.1186/1546-0096-11-s1-a223] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Maduell F, Ramos R, Palomares I, Martin-Malo A, Molina M, Bustamante J, Perez-Garcia R, Grassmann A, Merello JI. Impact of targeting Kt instead of Kt/V. Nephrol Dial Transplant 2013; 28:2595-603. [DOI: 10.1093/ndt/gft255] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Rubino PA, Mura J, Kitroser M, Bottan JS, Salas E, Lambre J, Chiarullo M, Bustamante J. Microsurgical clipping of previously coiled aneurysms. World Neurosurg 2013; 82:e203-8. [PMID: 24055570 DOI: 10.1016/j.wneu.2013.09.016] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2012] [Revised: 07/13/2013] [Accepted: 09/10/2013] [Indexed: 11/17/2022]
Abstract
OBJECTIVE This study sought to show and analyze the main authors' experience (P.R. and J.M.C.) in previously coiled aneurysm surgery as an emerging challenge in today's neurosurgical practice. METHODS Twelve female and 8 male patients, whose ages ranged from 32 to 56 years (average 43.5), underwent surgery between April 2009 and September 2012 in 2 centers. Reasons for surgery were 13 partially occluded aneurysms and 7 recanalized aneurysms. RESULTS There was no mortality in this series. Aneurysmal sites were 5 anterior communicating artery aneurysms, 5 posterior communicating artery aneurysms, 3 middle cerebral artery aneurysms, 6 paraclinoid carotid artery aneurysms, and 1 aneurysm in the pericallosal artery. A patient sustained a postsurgical frontal infarction with mild neurological deficit. One of the aneurysms presented with an arterial branch at the level of the aneurysmal neck; therefore, partial clipping and packing was required. Microsurgical clipping in the remaining patients was performed successfully. Eight cases required partial coil removal before clipping. CONCLUSIONS Surgical management of previously coiled aneurysms is an emerging challenge in neurosurgery. Incomplete or ineffective embolizations pose an increased risk for the patient, thus requiring surgical treatment. Although not advisable, coil removal might be necessary when in the vicinity of the aneurismal neck in order to place the clip correctly. The authors believe that adequate patient selection and careful preoperative planning are essential to reduce the incidence of patients with unsuccessful coils who will later need surgical treatment.
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Affiliation(s)
- Pablo Augusto Rubino
- Division of Neurosurgery, Department of Cerebrovascular Surgery, Hospital El Cruce, Florencio Varela, Buenos Aires, Argentina.
| | - Jorge Mura
- Cerebrovascular and Skull Base Team, Institute of Neurosurgery Asenjo, and Department of Neurological Surgery, University of Chile, Santiago, Chile
| | | | | | - Eduardo Salas
- Division of Neurosurgery, Department of Skull Base Surgery, Hospital El Cruce, Florencio Varela, Buenos Aires, Argentina
| | - Jorge Lambre
- Division of Neurosurgery, Hospital El Cruce, Florencio Varela, Buenos Aires, Argentina
| | - Marcos Chiarullo
- Division of Neurosurgery, Hospital El Cruce, Florencio Varela, Buenos Aires, Argentina
| | - Jorge Bustamante
- Division of Neurosurgery, Hospital El Cruce, Florencio Varela, Buenos Aires, Argentina
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Bustamante J, Puel A, Boisson-Dupuis S, Jouanguy E, Zhang SY, Casanova JL, Picard C. Prédisposition génétique aux maladies infectieuses chez l’homme. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.immbio.2013.04.001] [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: 12/16/2022]
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Haller M, Van Biesen W, Webster AC, Vanholder R, Nagler EV, Lee JE, Kim SK, Park SK, Yun GY, Choi HY, Ha SK, Park HC, Hernandez-Sevillano B, Rodriguez JR, Perez del Valle K, de Lorenzo A, Salas P, Bienvenido M, Sanchez-Heras M, Basterrechea MA, Tallon S, de Arriba G, Greenberg A, Verbalis J, Burst V, Haymann JP, Poch E, Chiodo J, Nagler EV, Vanmassenhove J, van der Veer SN, Nistor I, Van Biesen W, Webster AC, Vanholder R, Pignataro A, Alfieri V, Cesano G, Timbaldi M, Torta E, Boero R, Nagler EV, Haller MC, Van Biesen W, Vanholder R, Webster AC, Cucchiari D, Podesta M, Merizzoli E, Angelini C, Badalamenti S, Alves MT, Moyses RM, Jorgetti V, Heilberg I, Menon V, Lhotta K, Muendlein A, Meusburger E, Zitt E, Bijarnia R, Pasch A, Hwang SW, Lee CH, Kim GH, Leckstrom D, Pereira C, Bultitude M, McGrath A, Goldsmith DJ, Vasquez D, Fernandez B, Palomo S, Aller C, Gordillo R, Perez V, Bustamante J, Coca A, Vitale C, Bagnis C, Tricerri A, Gallo L, Dutto F, Migliardi M, Marangella M, Outerelo C, Figueiredo P, Freitas J, Teixeira Costa F, Ramos A, Rambod M, Melikterminas E, Atallah H, Saadi M, Connery S, Mulla Z, Tolouian R, Cristofaro R, Masola V, Ceol M, Priante G, Familiari A, Gambaro G, Anglani F. Acid-base / electrolytes / nephrolithiasis. Nephrol Dial Transplant 2013. [DOI: 10.1093/ndt/gft139] [Citation(s) in RCA: 2] [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: 11/14/2022] Open
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Borras M, Roig J, Betriu A, Vilar A, Hernandez M, Martin M, Fernandez ED, Dounousi E, Kiatou V, Papagianni A, Zikou X, Pappas K, Pappas E, Tatsioni A, Tsakiris D, Siamopoulos KC, Kim JK, Kim Y, Kim SG, Kim HJ, Ahn SY, Chin HJ, Oh KH, Ahn C, Chae DW, Yazici R, Altintepe L, Bakdik S, Guney I, Arslan S, Topal M, Karagoz A, Stefan G, Mircescu G, Capusa C, Stancu S, Petrescu L, Alecu S, Nedelcu D, Bennett AHL, Pham H, Garrity M, Magdeleyns E, Vermeer C, Zhang M, Ni Z, Zhu M, Yan J, Mou S, Wang Q, Qian J, Saade A, Karavetian M, ElZein H, de Vries N, de Haseth DE, Lay Penne E, van Dam B, Bax WA, Bots ML, Grooteman MPC, van den Dorpel RA, Blankenstijn PJ, Nube MJ, Wee PM, Park JH, Jo YI, Lee JH, Cianfrone P, Comi N, Lucisano G, Piraina V, Talarico R, Fuiano G, Toyonaga M, Fukami K, Yamagishi SI, Kaida Y, Nakayama Y, Ando R, Obara N, Ueda S, Okuda S, Granatova J, Havrda M, Hruskova Z, Tesar V, Viklicky O, Rysava R, Rychlik I, Kratka K, Honsova E, Vernerova Z, Maluskova J, Vranova J, Bolkova M, Borecka K, Benakova H, Zima T, Lu KC, Yang HY, Su SL, Cao YH, Lv LL, Liu BC, Zeng R, Gao XF, Deng YY, Boelaert J, t' Kindt R, Glorieux G, Schepers E, Jorge L, Neirynck N, Lynen F, Sandra P, Sandra K, Vanholder R, Yamamoto T, Nameta M, Yoshida Y, Uhlen M, Shi Y, Tang J, Zhang J, An Y, Liao Y, Li Y, Tao Y, Wang L, Koibuchi K, Tanaka K, Aoki T, Miyagi M, Sakai K, Aikawa A, Martins AR, Branco PQ, Serra FM, Matias PJ, Lucas CP, Adragao T, Duarte J, Oliveira MM, Saraiva AM, Barata JD, Masola V, Zaza G, Granata S, Proglio M, Pontrelli P, Abaterusso C, Schena F, Gesualdo L, Gambaro G, Lupo A, Pruijm M, Hofmann L, Stuber M, Zweiacker C, Piskunowicz M, Muller ME, Vogt B, Burnier M, Togashi N, Yamashita T, Mita T, Ohnuma Y, Hasegawa T, Endo T, Tsuchida A, Ando T, Yoshida H, Miura T, Bevins A, Assi L, Ritchie J, Jesky M, Stringer S, Kalra P, Hutchison C, Harding S, Cockwell P, Viccica G, Cupisti A, Chiavistelli S, Borsari S, Pardi E, Centoni R, Fumagalli G, Cetani F, Marcocci C, Scully P, O'Flaherty D, Sankaralingam A, Hampson G, Goldsmith DJ, Pallet N, Chauvet S, Beaune P, Nochy D, Thervet E, Karras A, Bertho G, Gallyamov MG, Saginova EA, Severova MM, Krasnova TN, Kopylova AA, Cho E, Jo SK, Kim MG, Cho WY, kim HK, Trivin C, Metzger M, Boffa JJ, Vrtovsnik F, Houiller P, Haymann JP, Flamant M, Stengel B, Thervet E, Roozbeh J, Yavari V, Pakfetrat M, Zolghadr AA, Kim CS, Kim MJ, Kang YU, Choi JS, Bae EH, Ma SK, Kim SW, Lemoine S, Guebre-Egziabher F, Dubourg L, Hadj-Aissa A, Blumberg S, Katzir Z, Biro A, Cernes R, Barnea Z, Vasquez D, Gordillo R, Aller C, Fernandez B, Jabary N, Perez V, Mendiluce A, Bustamante J, Coca A, Goek ON, Sekula P, Prehn C, Meisinger C, Gieger C, Suhre K, Adamski J, Kastenmuller G, Kottgen A, Kuzniewski M, Fedak D, Dumnicka P, Solnica B, Kusnierz-Cabala B, Kapusta M, Sulowicz W, Drozdz R, Zawada AM, Rogacev KS, Hummel B, Fliser D, Geisel J, Heine GH, Kretschmer A, Volsek M, Krahn T, Kolkhof P, Kribben A, Bruck H, Koh ES, Chung S, Yoon HE, Park CW, Chang YS, Shin SJ, Deagostini MC, Vigotti FN, Ferraresi M, Consiglio V, Scognamiglio S, Moro I, Clari R, Daidola G, Versino E, Piccoli GB, Mammadrahim Agayev M, Mehrali Mammadova I, Qarib Ismayilova S, Anguiano L, Riera M, Pascual J, Barrios C, Betriu A, Valdivielso JM, Fernandez E, Soler MJ, Tsarpali V, Liakopoulos V, Panagopoulou E, Kapoukranidou D, Spaia S, Kostopoulou M, Michalaki A, Nikitidou O, Dombros N, Zhu F, Abba S, Flores-Gama C, Williams C, Cartagena C, Carter M, Kotanko P, Levin NW, Kolesnyk M, Stepanova N, Driyanska V, Stashevska N, Kundin V, Shifris I, Dudar I, Zaporozhets O, Keda T, Ishchenko M, Khil M, Choe JY, Nam SA, Kim J, Cha JH, Gliga ML, Irimescu CG, Caldararu CD, Gliga MG, Toma LV, Gomotarceanu A, Park Y, Kim Y, Jeon J, Kwon SK, Kim SJ, Kim SM, Kim HY, Montero N, Soler MJ, Barrios C, Marquez E, Berrada A, Arias C, Prada JA, Orfila MA, Mojal S, Vilaplana C, Pascual J, Vigotti FN, Attini R, Parisi S, Fassio F, Deagostini MC, Ghiotto S, Ferraresi M, Clari R, Biolcati M, Todros T, Piccoli GB, Jin K, Vaziri ND, Tramonti G, Romiti N, Chieli E, Maksudova AN, Khusnutdinova LA, Tang J, Shi Y, Zhang J, Li Y, An Y, Tao Y, Wang L, Reque JE, Quiroga B, Lopez JM, Verdallez UG, Garcia de Vinuesa M, Goicoechea M, Nayara PG, Arroyo DR, Luno J, Tanaka H, Flores-Gama C, Abbas SR, Williams C, Cartagena C, Carter M, Thijssen S, Kotanko P, Levin NW, Zhu F, Berthoux FC, Azzouz L, Afiani A, Ziane A, Mariat C, Fournier H, Kusztal M, Dzierzek P, Witkowski G, Nurzynski M, Golebiowski T, Weyde W, Klinger M, Altiparmak MR, Seyahi N, Trabulus S, Bolayirli M, Andican ZG, Suleymanlar G, Serdengecti K, Niculae A, Checherita IA, Neagoe DN, Ciocalteu A, Seiler S, Rogacev KS, Pickering JW, Emrich I, Fliser D, Heine G, Bargnoux AS, Obiols J, Kuster N, Fessler P, Badiou S, Dupuy AM, Ribstein J, Cristol JP, Yanagisawa N, Ando M, Ajisawa A, Tsuchiya K, Nitta K, Bouquegneau A, Cavalier E, Krzesinski JM, Delanaye P, Tominaga N, Shibagaki Y, Kida K, Miyake F, Kimura K, Ayvazyan A, Rameev V, Kozlovskaya L, Simonyan A, Scholze A, Marckmann P, Tepel M, Rasmussen LM, Hara M, Ando M, Tsuchiya K, Nitta K, Kanai H, Harada K, Tamura Y, Kawai Y, Al-Jebouri MM, Madash SA, Leonidovna Berezinets O, Nicolaevich Rossolovskiy A. Lab methods / biomarkers. Nephrol Dial Transplant 2013. [DOI: 10.1093/ndt/gft108] [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: 11/13/2022] Open
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Gastaca M, Matarranz A, Muñoz F, Valdivieso A, Aguinaga A, Testillano M, Bustamante J, Terreros I, Suarez MJ, Montejo M, Ortiz de Urbina J. Biliary complications in orthotopic liver transplantation using choledochocholedochostomy with a T-tube. Transplant Proc 2013; 44:1554-6. [PMID: 22841211 DOI: 10.1016/j.transproceed.2012.05.025] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Despite significant advances in orthotopic liver transplantation (OLT), biliary tract reconstruction is still a major source of complications. Choledochocholedochostomy with a T-tube used to be the standard procedure for biliary reconstruction after OLT. However, many centers currently avoid use of the T-tube because of the high incidence of complications. Our aim was to study the biliary complications occurring at our center when end-to-end choledochocholedochostomy (EE-CC) over a T-tube was used as the standard procedure for biliary reconstruction. A retrospective review was conducted of all patients who underwent liver transplantation from February 1, 1996, to April 30, 2010. Only patients requiring any therapy to treat biliary complications were considered, whereas those with concomitant hepatic artery complications were excluded. The study cohort consisted of 743 patients who had EE-CC with a T-tube. Of these, 73 patients (9.8%) experienced any biliary complication. Anastomotic strictures occurred in 17 patients (2.3%), and non-anastomotic strictures in 2 (0.3%). Fifteen patients with anastomotic strictures were successfully treated by dilatation and stenting. Bile leakage was diagnosed in 39 patients (5.2%). Leakage occurred at the anastomosis in 15 patients (2%), and at the exit site of the T-tube in 24 patients (3.2%). Tube opening was the only treatment used in 30 patients with bile leakage (76.9%). Seven patients experienced leaks after elective T-tube removal (1%). Overall, repeat surgery to manage biliary complications was needed in 9 patients (1.2%). The mortality rate from biliary complications was 0.13%. In conclusion, EE-CC with a T-tube was followed by a low incidence of biliary complications. The complication rate after elective T-tube removal and the repeat surgery rate were extremely low. These results might challenge the current trend to avoid T-tube stenting in OLT.
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Affiliation(s)
- M Gastaca
- Hepato-biliary Surgery and Liver Transplantation Unit, Hospital Universitario de Cruces, Bilbao, Spain.
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Abstract
The development of techniques for genomics study makes it possible for us to further our knowledge about the physiopathology of various immunological or infectious diseases. These techniques improve our understanding of the development and evolution of such diseases, including those of cardiovascular origin, whilst they help to bring about the design of new therapeutic strategies. We are reviewing the genetic alterations of immunity in said field, and focusing on the signaling pathway of toll-like receptors because not only does this play a decisive role in response to microorganisms, it is also heavily involved in modulating the inflammatory response to tissue damage, a side effect of numerous cardiovascular diseases. These alterations in tissue homeostasis are present under a wide range of circumstances, such as reperfusion ischemia (myocardial infarction) phenomena, arteriosclerosis, or valvulopathy.
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Affiliation(s)
- J Bustamante
- Department of Cardiovascular Surgery, Hospital Universitario La Princesa, Madrid
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Gastaca M, Valdivieso A, Montejo M, Bustamante J, de Urbina JO. Is antithrombotic prophylaxis required after liver transplantation in HIV-infected recipients? Am J Transplant 2012; 12:2258. [PMID: 22682230 DOI: 10.1111/j.1600-6143.2012.04132.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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de Oliveira-Junior EB, Prando C, Lopez JA, Arango JC, Buzolin M, Rehder J, Pedroza LA, Frazão JB, Dantas VM, Roxo-Junior P, Grumach AS, Costa-Carvalho BT, Bustamante J, Condino-Neto A. High-Performance Liquid Chromatography Under Partially Denaturing Conditions (dHPLC) is a Fast and Cost-Effective Method for Screening Molecular Defects: Four Novel Mutations Found in X-Linked Chronic Granulomatous Disease. Scand J Immunol 2012; 76:158-66. [DOI: 10.1111/j.1365-3083.2012.02714.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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