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Arauz PG, Chavez G, Reinoso V, Ruiz P, Ortiz E, Cevallos C, Garcia G. Influence of a passive exoskeleton on kinematics, joint moments, and self-reported ratings during a lifting task. J Biomech 2024; 162:111886. [PMID: 38043494 DOI: 10.1016/j.jbiomech.2023.111886] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 10/30/2023] [Accepted: 11/27/2023] [Indexed: 12/05/2023]
Abstract
It was found that the Auxivo LiftSuit reduced the load on the back and hip muscles when lifting heavy loads, but its effect on lower body kinematics, joint moments, and self-reported ratings was unclear. The purpose of this study was to assess the effect of this passive lift-exoskeleton design, on lower body kinematics, joint moments, and self-reported ratings during lifting of heavy loads. Twenty healthy subjects performed lifting of heavy loads with and without the exoskeleton under surveillance of a motion capture system. Medium and maximum level adjustments of the exoskeleton, as well as no exoskeleton use were analyzed. Our results indicate significant reduction (p <.01) in pelvis segment tilt and hip flexion ROM with the exoskeleton at maximum level adjustment in males during lifting. Lumbosacral flexion moment ranges were significantly decreased (p <.013) with the exoskeleton at maximum and medium level adjustment in males during lifting. The general user impressions were mostly positive, with participants reporting that it was easier to perform the task with the exoskeleton than without it (p <.0.001), and preferring and recommending the exoskeleton for the task. Although our findings may suggest negative effects of the Auxivo LiftSuit in males and females due to a ROM restriction and loose fit, respectively, it does not mean that the Auxivo LiftSuit is not useful for lifting tasks. Further design improvements are required to allow full range of motion of hips and pelvis, as well to provide better adjustment and level of support in female users.
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Affiliation(s)
- Paul G Arauz
- Departamento de Ingeniería Mecánica, Colegio de Ciencias e Ingenierías, Universidad San Francisco de Quito USFQ, Quito, Ecuador.
| | - Guillermo Chavez
- Departamento de Ingeniería Industrial, Colegio de Ciencias e Ingenierías, Universidad San Francisco de Quito USFQ, Quito, Ecuador
| | - Valentina Reinoso
- Departamento de Ingeniería Industrial, Colegio de Ciencias e Ingenierías, Universidad San Francisco de Quito USFQ, Quito, Ecuador
| | - Pablo Ruiz
- Laboratorio de Análisis de Movimiento, CELMOST Vivir, Quito, Ecuador
| | - Esteban Ortiz
- Department of Bioengineering, Rice University, Houston, United States
| | - Carlos Cevallos
- Faculté des Sciences de la Motricité, Université libre de Bruxelles, Bruxelles, Belgium
| | - Gabriela Garcia
- Departamento de Ingeniería Industrial, Colegio de Ciencias e Ingenierías, Universidad San Francisco de Quito USFQ, Quito, Ecuador
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Ortiz E, Ramos-Jiliberto R, Arim M. Prey selection along a predators' body size gradient evidences the role of different trait-based mechanisms in food web organization. PLoS One 2023; 18:e0292374. [PMID: 37797081 PMCID: PMC10553361 DOI: 10.1371/journal.pone.0292374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Accepted: 09/19/2023] [Indexed: 10/07/2023] Open
Abstract
An increase in prey richness, prey size and predator trophic position with predator body size has been consistently reported as prime features of food web organization. These trends have been explained by non-exclusive mechanisms. First, the increase in energy demand with body size determines that larger predators must reduce prey selectivity for achieving the required number of resources, being consumption relationships independent of prey traits. Second, when consumption is restricted by gape limitation, small predators are constrained to select among small prey. However, this selection weakens over large predators, which progressively consume more and larger prey. Finally, the optimal foraging mechanism predicts that larger predators optimize their diet by selecting only large prey with high energy reward. Each one of these mechanisms can individually explain the increase in prey richness, prey size and predator trophic position with predator body size but their relative importance or the direct evidence for their combined role was seldom considered. Here we use the community assembly by trait selection (CATS) theory for evaluating the support for each one of these mechanisms based on the prey selection patterns that they predict. We analyzed how prey body size and trophic guild determine prey selection by predators of increasing body size in a killifish guild from a temporary pond system. Results support the combination of the three mechanisms to explain the structural trends in our food web, although their strength is contingent on prey trophic group. Overall, high energy prey are preferred by larger predators, and small predators select small prey of all trophic status. However, large predators prefer large primary producers and avoid large carnivorous prey, probably because of the inherent risk of consuming other carnivorous. Our study provides a mechanistic understanding of how predator traits determine the selection of prey traits affecting food web assembly.
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Affiliation(s)
- Esteban Ortiz
- Departamento de Ecología y Gestión Ambiental-Centro Universitario Regional del Este, Universidad de la República, Maldonado, Uruguay
| | | | - Matías Arim
- Departamento de Ecología y Gestión Ambiental-Centro Universitario Regional del Este, Universidad de la República, Maldonado, Uruguay
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Ortiz E, Borthagaray AI, Ramos-Jiliberto R, Arim M. Scaling of biological rates with body size as a backbone in the assembly of metacommunity biodiversity. Biol Lett 2023; 19:20220618. [PMID: 37340811 DOI: 10.1098/rsbl.2022.0618] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/22/2023] Open
Abstract
The dispersal-body mass association has been highlighted as a main determinant of biodiversity patterns in metacommunities. However, less attention has been devoted to other well-recognized determinants of metacommunity diversity: the scaling in density and regional richness with body size. Among active dispersers, the increase in movement with body size may enhance local richness and decrease β-diversity. Nevertheless, the reduction of population size and regional richness with body mass may determine a negative diversity-body size association. Consequently, metacommunity assembly probably emerges from a balance between the effect of these scalings. We formalize this hypothesis by relating the exponents of size-scaling rules with simulated trends in α-, β- and γ-diversity with body size. Our results highlight that the diversity-body size relationship in metacommunities may be driven by the combined effect of different scaling rules. Given their ubiquity in most terrestrial and aquatic biotas, these scaling rules may represent the basic determinants-backbone-of biodiversity, over which other mechanisms operate determining metacommunity assembly. Further studies are needed, aimed at explaining biodiversity patterns from functional relationships between biological rates and body size, as well as their association with environmental conditions and species interactions.
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Affiliation(s)
- Esteban Ortiz
- Departamento de Ecología y Gestión Ambiental, Centro Universitario Regional Este (CURE), Universidad de la República, Maldonado, 20000, Uruguay
| | - Ana I Borthagaray
- Departamento de Ecología y Gestión Ambiental, Centro Universitario Regional Este (CURE), Universidad de la República, Maldonado, 20000, Uruguay
| | - Rodrigo Ramos-Jiliberto
- GEMA Center for Genomics, Ecology and Environment, Universidad Mayor, Santiago, 8580000, Chile
| | - Matías Arim
- Departamento de Ecología y Gestión Ambiental, Centro Universitario Regional Este (CURE), Universidad de la República, Maldonado, 20000, Uruguay
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Borthagaray AI, Cunillera-Montcusí D, Bou J, Tornero I, Boix D, Anton-Pardo M, Ortiz E, Mehner T, Quintana XD, Gascón S, Arim M. Heterogeneity in the isolation of patches may be essential for the action of metacommunity mechanisms. Front Ecol Evol 2023. [DOI: 10.3389/fevo.2023.1125607] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023] Open
Abstract
The spatial isolation gradient of communities and the gradient in the species dispersal ability are recognized as determinants of biodiversity in metacommunities. In spite of this, mean field models, spatially explicit models, and experiments were mainly focused on idealized spatial arrangements of communities leaving aside the combining role of dispersal and isolation gradients in metacommunity processes. Consequently, we have an incipient understanding of the role of the real spatial arrangement of communities on biodiversity patterns. We focus on six metacommunities for which confident information about the spatial arrangement of water bodies is available. Using coalescent metacommunity models and null models that randomize the location of water bodies, we estimated the potential effect of the landscape on biodiversity and its dependence on species dispersal ability. At extremely low or high dispersal abilities, the location of ponds does not influence diversity because different communities are equally affected by the low or high incoming dispersal. At intermediate dispersal abilities, peripheral communities present a much lower richness and higher beta diversity than central communities. Moreover, metacommunities from real landscapes host more biodiversity than randomized landscapes, a result that is determined by the heterogeneity in the geographic isolation of communities. In a dispersal gradient, mass effects systematically increase the local richness and decrease beta diversity. However, the spatial arrangement of patches only has a large importance in metacommunity processes at intermediate dispersal abilities, which ensures access to central locations but limits dispersal in isolated communities. The ongoing reduction in spatial extent and simplification of the landscape may consequently undermine the metacommunity processes that support biodiversity, something that should be explicitly considered in preserving and restoring strategies.
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Yang K, Kim H, Ortiz E, Huoi C, Kang J. Post-Marketing Safety Surveillance of a Childhood Pentavalent Diphtheria-Tetanus-Acellular Pertussis-Polio and Haemophilus influenzae Type B (DTaP-IPV//Hib) Vaccine in South Korea. Infect Dis Ther 2023; 12:499-511. [PMID: 36520326 PMCID: PMC9925623 DOI: 10.1007/s40121-022-00724-7] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 11/03/2022] [Indexed: 12/23/2022] Open
Abstract
INTRODUCTION PENTAXIM™ (Sanofi), DTaP-IPV//Hib, a pentavalent combination vaccine for protection against diphtheria, tetanus, pertussis, poliomyelitis, and invasive infections caused by Haemophilus influenzae type b, has been licensed in South Korea by the Ministry of Food and Drug Safety (MFDS) on May 9, 2016, and is currently used in routine vaccination. The aim of this phase IV study, conducted as a post-licensure commitment in South Korea, was to evaluate the safety of the DTaP-IPV//Hib vaccine when administered in infants at 2, 4, and 6 months of age in the real-world clinical practice. METHODS This multicenter, observational, post-marketing surveillance (PMS) study was conducted in real-world practice in South Korea. Infants aged 2 months or older were enrolled across seven centers from July 31, 2018 to February 11, 2020. The study outcomes included occurrence, time to onset, duration, intensity, and causality assessment (for unsolicited adverse events [AEs] only) for several pre-listed solicited injection-site and systemic reactions, unsolicited AEs, and serious adverse events (SAEs). RESULTS Data from 619 participants were included in the safety analysis. Overall, 618 AEs were reported by 273 (44.1%) participants consisting of 121 solicited injection-site reactions (15.4%), 344 solicited systemic reactions (24.6%), and 153 unsolicited AEs (15.7%) of which, 124 were unexpected AEs (12.9%) (regardless of intensity). None of the unsolicited AEs were reported to have a causal relationship with the study vaccine. One SAE of pyrexia (solicited reaction) was reported. Most AEs were of mild intensity, and all participants recovered. CONCLUSION This PMS study of the DTaP-IPV//Hib vaccine confirmed its safety profile in a real-life setting in South Korea and justified that the vaccine is well tolerated when used in infants aged 2 months or older for the primary series.
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Affiliation(s)
- Kuhyun Yang
- Medical Affairs, Sanofi, Seoul, Republic of Korea
| | - Hyunjung Kim
- Medical Department, Sanofi, Seoul, Republic of Korea
| | | | | | - Jinhan Kang
- The Catholic University of Korea, Seoul St. Mary's Hospital, Seoul, Republic of Korea.
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Madden ME, Suminaite D, Ortiz E, Early JJ, Koudelka S, Livesey MR, Bianco IH, Granato M, Lyons DA. CNS Hypomyelination Disrupts Axonal Conduction and Behavior in Larval Zebrafish. J Neurosci 2021; 41:9099-9111. [PMID: 34544838 PMCID: PMC8570833 DOI: 10.1523/jneurosci.0842-21.2021] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 08/11/2021] [Accepted: 08/16/2021] [Indexed: 11/21/2022] Open
Abstract
Myelination is essential for central nervous system (CNS) formation, health and function. As a model organism, larval zebrafish have been extensively employed to investigate the molecular and cellular basis of CNS myelination, because of their genetic tractability and suitability for non-invasive live cell imaging. However, it has not been assessed to what extent CNS myelination affects neural circuit function in zebrafish larvae, prohibiting the integration of molecular and cellular analyses of myelination with concomitant network maturation. To test whether larval zebrafish might serve as a suitable platform with which to study the effects of CNS myelination and its dysregulation on circuit function, we generated zebrafish myelin regulatory factor (myrf) mutants with CNS-specific hypomyelination and investigated how this affected their axonal conduction properties and behavior. We found that myrf mutant larvae exhibited increased latency to perform startle responses following defined acoustic stimuli. Furthermore, we found that hypomyelinated animals often selected an impaired response to acoustic stimuli, exhibiting a bias toward reorientation behavior instead of the stimulus-appropriate startle response. To begin to study how myelination affected the underlying circuitry, we established electrophysiological protocols to assess various conduction properties along single axons. We found that the hypomyelinated myrf mutants exhibited reduced action potential conduction velocity and an impaired ability to sustain high-frequency action potential firing. This study indicates that larval zebrafish can be used to bridge molecular and cellular investigation of CNS myelination with multiscale assessment of neural circuit function.SIGNIFICANCE STATEMENT Myelination of CNS axons is essential for their health and function, and it is now clear that myelination is a dynamic life-long process subject to modulation by neuronal activity. However, it remains unclear precisely how changes to myelination affects animal behavior and underlying action potential conduction along axons in intact neural circuits. In recent years, zebrafish have been employed to study cellular and molecular mechanisms of myelination, because of their relatively simple, optically transparent, experimentally tractable vertebrate nervous system. Here we find that changes to myelination alter the behavior of young zebrafish and action potential conduction along individual axons, providing a platform to integrate molecular, cellular, and circuit level analyses of myelination using this model.
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Affiliation(s)
- M E Madden
- Centre for Discovery Brain Sciences, University of Edinburgh, Edinburgh EH16 4SB, United Kingdom
| | - D Suminaite
- Centre for Discovery Brain Sciences, University of Edinburgh, Edinburgh EH16 4SB, United Kingdom
| | - E Ortiz
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104
| | - J J Early
- Centre for Discovery Brain Sciences, University of Edinburgh, Edinburgh EH16 4SB, United Kingdom
| | - S Koudelka
- Centre for Discovery Brain Sciences, University of Edinburgh, Edinburgh EH16 4SB, United Kingdom
| | - M R Livesey
- Centre for Discovery Brain Sciences, University of Edinburgh, Edinburgh EH16 4SB, United Kingdom
- Sheffield Institute for Translational Neuroscience, Department of Neuroscience, The University of Sheffield, Sheffield S10 2HQ, United Kingdom
| | - I H Bianco
- Neuroscience, Physiology and Pharmacology, University College London, London WC1E 6BT, United Kingdom
| | - M Granato
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104
| | - D A Lyons
- Centre for Discovery Brain Sciences, University of Edinburgh, Edinburgh EH16 4SB, United Kingdom
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Chen-Zhao X, Montero Á, de las Heras J, Álvarez B, Barrientos I, Prado A, Ciérvide R, López M, García-Aranda M, Ortiz E, Gutiérrez M, Sánchez E, Hernando O, De la Casa M, Valero J, Alonso R, Fernández-Letón P, Rubio C. PO-1422 Perioperative HDR brachytherapy and EBRT: a winning combo for soft tissue sarcomas. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)07873-7] [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: 11/16/2022]
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8
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Macia M, Pulido-Duque JM, Hortal L, Vega N, Garcia-Medinal J, Ortiz E, Maynar M, Palop L. Percutaneous Embolization of Splenic Artery Pseudoaneurysm as a Treatment of Hemoperitoneum in a Capd Patient. Perit Dial Int 2020. [DOI: 10.1177/089686089301300216] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
| | - J. M. Pulido-Duque
- Nephrology, Vascular Radiology Departments Hospital Ntra. Sra. del Pino Las Palmas de Gran Canaria, Spain
| | | | | | | | - E. Ortiz
- Gastroenterology Departments Hospital Ntra. Sra. del Pino Las Palmas de Gran Canaria, Spain
| | - M. Maynar
- Nephrology, Vascular Radiology Departments Hospital Ntra. Sra. del Pino Las Palmas de Gran Canaria, Spain
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Orlando L, Rivera-Rebella C, Pinelli V, Pereira-Garbero R, Hernandez D, Ortiz E, Ziegler L. 100 articles every ecologist can actually read? Neotropical Biology and Conservation 2018. [DOI: 10.4013/nbc.2018.134.07] [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: 11/17/2022] Open
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10
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Diaz-Jimenez M, Dorado J, Pereira B, Ortiz I, Consuegra C, Bottrel M, Ortiz E, Hidalgo M. Vitrification in straws conserves motility features better than spheres in donkey sperm. Reprod Domest Anim 2018; 53 Suppl 2:56-58. [PMID: 30238658 DOI: 10.1111/rda.13256] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Revised: 06/01/2018] [Accepted: 06/15/2018] [Indexed: 11/27/2022]
Abstract
Sperm vitrification as alternative to conventional freezing is increasing in popularity in many species. It has been achieved by direct exposure of diluted semen to liquid nitrogen in spheres or straws. Both techniques have been successfully developed, but they had not been compared yet in donkeys. The aim of this study was to compare these two methods of vitrification for donkey semen. Ejaculates from six Andalusian donkeys were collected and extended in Gent without glycerol supplemented with sucrose 0.1 M (Molar). Samples were slowly cooled at 5°C. For vitrification, 30 μl suspensions (spheres) were dropped directly into liquid nitrogen (LN2 ) or filled in covered 0.25 ml straws and then plunged into the LN2 (straws). For warming, straws and spheres were directly immersed in 3 ml of INRA-96 at 43°C. Total (TM, %) and progressive motility (PM, %) were objectively evaluated by computer-assisted sperm analysis and plasma membrane integrity (PMI, %) by epifluorescence microscopy. Results showed the straw method resulted in significantly higher values than spheres for: TM (54.7% ± 10.1 vs. 28.6% ± 6.5) and PM (44.2% ± 9.4 vs. 17.7% ± 6.4), but no significant differences were found between straws or spheres for PMI (31.5 ± 10.7 vs. 41.6 ± 14.3) respectively. In conclusion, donkey sperm could be vitrified in straws obtaining better sperm motility parameters after warming in comparison to the sphere method.
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Affiliation(s)
- M Diaz-Jimenez
- Department of Animal Medicine and Surgery, Faculty of Veterinary Medicine, Veterinary Reproduction Group, University of Cordoba, Cordoba, Spain
| | - J Dorado
- Department of Animal Medicine and Surgery, Faculty of Veterinary Medicine, Veterinary Reproduction Group, University of Cordoba, Cordoba, Spain
| | - B Pereira
- Department of Animal Medicine and Surgery, Faculty of Veterinary Medicine, Veterinary Reproduction Group, University of Cordoba, Cordoba, Spain
| | - I Ortiz
- Department of Animal Medicine and Surgery, Faculty of Veterinary Medicine, Veterinary Reproduction Group, University of Cordoba, Cordoba, Spain
| | - C Consuegra
- Department of Animal Medicine and Surgery, Faculty of Veterinary Medicine, Veterinary Reproduction Group, University of Cordoba, Cordoba, Spain
| | - M Bottrel
- Department of Animal Medicine and Surgery, Faculty of Veterinary Medicine, Veterinary Reproduction Group, University of Cordoba, Cordoba, Spain
| | - E Ortiz
- Department of Animal Medicine and Surgery, Faculty of Veterinary Medicine, Veterinary Reproduction Group, University of Cordoba, Cordoba, Spain
| | - M Hidalgo
- Department of Animal Medicine and Surgery, Faculty of Veterinary Medicine, Veterinary Reproduction Group, University of Cordoba, Cordoba, Spain
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Silva-Feistner M, Ortiz E, Alvarez-Véliz S, Wortsman X. Amelanotic Subungual Melanoma Mimicking Telangiectatic Granuloma: Clinical, Histologic, and Radiologic Correlations. Actas Dermo-Sifiliográficas (English Edition) 2017. [DOI: 10.1016/j.adengl.2017.07.007] [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: 10/19/2022] Open
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Silva-Feistner M, Ortiz E, Alvarez-Véliz S, Wortsman X. Melanoma amelanótico subungueal simulando granuloma telangiectásico. Correlación clínica, histológico y radiológica. Actas Dermo-Sifiliográficas 2017; 108:785-787. [DOI: 10.1016/j.ad.2017.03.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Revised: 02/24/2017] [Accepted: 03/04/2017] [Indexed: 11/28/2022] Open
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Heredia V, Mendiola M, Ortiz E, Bernabéu D, Pozo-Kreilinger J, Miguel M, Crespo R, Berjón A, Martínez-Marín V, Redondo A. AG-120, a novel IDH1 targeted molecule, inhibits invasion and migration of chondrosarcoma cells in vitro. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx387.049] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [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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Jiménez-Vargas J, Quintero-Hernández V, Gonzalez-Morales L, Ortiz E, Possani L. Corrigendum to “Design and expression of recombinant toxins from Mexican scorpions of the genus Centruroides for production of antivenoms” [Toxicon 128 (2017) 5–14]. Toxicon 2017; 130:126. [DOI: 10.1016/j.toxicon.2017.03.002] [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: 10/20/2022]
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Jiménez-Vargas JM, Quintero-Hernández V, González-Morales L, Ortiz E, Possani LD. Design and expression of recombinant toxins from Mexican scorpions of the genus Centruroides for production of antivenoms. Toxicon 2017; 128:5-14. [PMID: 28126552 DOI: 10.1016/j.toxicon.2017.01.015] [Citation(s) in RCA: 9] [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: 10/27/2016] [Revised: 01/16/2017] [Accepted: 01/18/2017] [Indexed: 11/30/2022]
Abstract
This manuscript describes the design of plasmids containing the genes coding for four main mammalian toxins of scorpions from the genus Centruroides (C.) of Mexico. The genes that code for toxin 2 of C. noxius (Cn2), toxin 2 from C. suffusus (Css2) and toxins 1 and 2 from C. limpidus (Cll1 and Cll2) were included into individual plasmids carrying the genetic construction for expression of fusion proteins containing a leader peptide (pelB) that directs the expressed protein to the bacterial periplasm, a carrier protein (thioredoxin), the cleavage site for enterokinase, the chosen toxin and a poly-histidine tag (6xHis-tag) for purification of the hybrid protein by immobilized metal ion affinity chromatography after expression in Escherichia coli strain BL21 (DE3). The purified hybrid proteins containing the recombinant toxins (abbreviated Thio-EK-Toxin) were used for immunization of three independent groups of ten mice and four rabbits. Challenging the first group of mice, immunized with recombinant Thio-EK-Css2, with three median lethal doses (LD50) of C. suffusus soluble venom resulted in the survival of all the test animals without showing intoxication symptoms. All control mice (none immunized) died. Similar results were obtained with mice previously immunized with Thio-EK-Cn2 and challenged with C. noxius venom. The third group of mice immunized with both Thio-EK-Cll1 and Thio-EK-Cll2 showed an 80% survival ratio when challenged with only one LD50 of C. limpidus venom, all showing symptoms of intoxication. The sera from rabbits immunized with a combination of the four recombinant toxins were collected separately and used to assess their neutralization capacity in vitro (pre-incubating the serum with the respective scorpion venom and injecting the mixture into mice), using six mice for each serum/venom combination tested. The venoms from the six most dangerous scorpion species of Mexico were assayed: C. noxius, C. suffusus, C. limpidus, C. elegans, C. tecomanus and C. sculpturatus. Two hundred and 50 μL of serum from any of the immunized rabbits were enough to neutralize three LD50 of any of the tested venoms, with mice showing no symptoms of intoxication. These results confirm that the recombinant forms of the main toxins from the most dangerous scorpions of Mexico are excellent immunogens for the production of antivenoms to treat scorpion intoxications.
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Affiliation(s)
- J M Jiménez-Vargas
- Departamento de Medicina Molecular y Bioprocesos, Instituto de Biotecnologia, Universidad Nacional Autonoma de Mexico, Avenida Universidad, 2001, Cuernavaca, Morelos, 62210, Mexico
| | - V Quintero-Hernández
- Departamento de Medicina Molecular y Bioprocesos, Instituto de Biotecnologia, Universidad Nacional Autonoma de Mexico, Avenida Universidad, 2001, Cuernavaca, Morelos, 62210, Mexico
| | - L González-Morales
- Departamento de Medicina Molecular y Bioprocesos, Instituto de Biotecnologia, Universidad Nacional Autonoma de Mexico, Avenida Universidad, 2001, Cuernavaca, Morelos, 62210, Mexico
| | - E Ortiz
- Departamento de Medicina Molecular y Bioprocesos, Instituto de Biotecnologia, Universidad Nacional Autonoma de Mexico, Avenida Universidad, 2001, Cuernavaca, Morelos, 62210, Mexico
| | - L D Possani
- Departamento de Medicina Molecular y Bioprocesos, Instituto de Biotecnologia, Universidad Nacional Autonoma de Mexico, Avenida Universidad, 2001, Cuernavaca, Morelos, 62210, Mexico.
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Loera-Serna S, Solis H, Ortiz E, Martínez-Hernandéz AL, Noreña L. Elimination of Methylene Blue and Reactive Black 5 from Aqueous Solution Using HKUST-1. ACTA ACUST UNITED AC 2017. [DOI: 10.18178/ijesd.2017.8.4.955] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Affiliation(s)
- Esteban Ortiz
- Departamento de Ecología y Evolución, Facultad de Ciencias; Universidad de la República; Iguá 4225 Piso 9 Sur CP 11400 Montevideo Uruguay
- Departamento de Ecología Teórica y Aplicada, Centro Universitario Regional Este (CURE); Universidad de la República; Maldonado Uruguay
| | - Matías Arim
- Departamento de Ecología y Evolución, Facultad de Ciencias; Universidad de la República; Iguá 4225 Piso 9 Sur CP 11400 Montevideo Uruguay
- Departamento de Ecología Teórica y Aplicada, Centro Universitario Regional Este (CURE); Universidad de la República; Maldonado Uruguay
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Kang JH, Lee HJ, Kim KH, Oh SH, Cha SH, Lee J, Kim NH, Eun BW, Kim CH, Hong YJ, Kim HH, Lee KY, Kim YJ, Cho EY, Kim HS, Guitton F, Ortiz E. The Immunogenicity and Safety of a Combined DTaP-IPV//Hib Vaccine Compared with Individual DTaP-IPV and Hib (PRP~T) Vaccines: a Randomized Clinical Trial in South Korean Infants. J Korean Med Sci 2016; 31:1383-91. [PMID: 27510380 PMCID: PMC4974178 DOI: 10.3346/jkms.2016.31.9.1383] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2015] [Accepted: 05/18/2016] [Indexed: 11/26/2022] Open
Abstract
Recommended infant vaccination in Korea includes DTaP-IPV and Hib vaccines administered as separate injections. In this randomized, open, controlled study we assessed the non-inferiority of immunogenicity of DTaP-IPV//Hib pentavalent combination vaccine (Pentaxim™) compared with licensed DTaP-IPV and Hib (PRP~T) vaccines. We enrolled 418 healthy Korean infants to receive either separate DTaP-IPV and Hib vaccines (n = 206) or the pentavalent DTaP-IPV//Hib (n = 208) vaccine at 2, 4, 6 months of age. Antibodies to all components were measured before the first vaccination and one month after the third, and safety was assessed after each vaccination including recording of reactions by parents. We confirmed the non-inferiority of DTaP-IPV//Hib compared with DTaP-IPV and Hib vaccines; 100% of both groups achieved seroprotection against D, T, IPV and PRP~T, and 97.5%-99.0% demonstrated seroresponses to pertussis antigens. Antibody levels were similar in both groups, except for those to the Hib component, PRP~T. In separate and combined groups geometric mean concentrations of anti-PRP~T antibodies were 23.9 and 11.0 μg/mL, respectively, but 98.3% and 97.4% had titers ≥ 1 μg/mL, indicative of long-term protection. All vaccines were well tolerated, with no vaccine-related serious adverse event. Both groups had similar safety profiles, but the combined vaccine group had fewer injection site reactions. The immunological non-inferiority and similar safety profile of DTaP-IPV//Hib vaccine to separate DTaP-IPV and Hib vaccines, with the advantage of fewer injections and injection site reactions, supports the licensure and incorporation of DTaP-IPV//Hib into the Korean national vaccination schedule (Clinical trial registry, NCT01214889).
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Affiliation(s)
- Jin Han Kang
- Department of Pediatrics, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, Korea
| | - Hoan Jong Lee
- Department of Pediatrics, Seoul National University Children's Hospital, Seoul National University College of Medicine, Seoul, Korea.
| | - Kyung Hyo Kim
- Department of Pediatrics, Ewha Womans University Mokdong Hospital, Seoul, Korea
| | - Sung Hee Oh
- Department of Pediatrics, Hanyang University Medical Center, Seoul, Korea
| | - Sung Ho Cha
- Department of Pediatrics, Kyung Hee University Hospital, Seoul, Korea
| | - Jin Lee
- Department of Pediatrics, KEPCO Medical Center, Seoul, Korea
| | - Nam Hee Kim
- Department of Pediatrics, Inje University Ilsan Paik Hospital, Ilsan, Korea
| | - Byung Wook Eun
- Department of Pediatrics, Eulji University School of Medicine, Eulji General Hospital, Seoul, Korea
| | - Chang Hwi Kim
- Department of Pediatrics, Soonchunhyang University Bucheon Hospital, Bucheon, Korea
| | - Young Jin Hong
- Department of Pediatrics, Inha University Hospital, Incheon, Korea
| | - Hyun Hee Kim
- Department of Pediatrics, The Catholic University of Korea, Uijeongbu St. Mary's Hospital, Uijeongbu, Korea
| | - Kyung Yil Lee
- Department of Pediatrics, The Catholic University of Korea, Daejeon St. Mary's Hospital, Daejeon, Korea
| | - Yae Jean Kim
- Department of Pediatrics, Sungkyunkwan University School of Medicine, Samsung Medical Center, Seoul, Korea
| | - Eun Young Cho
- Department of Pediatrics, Seoul National University Children's Hospital, Seoul National University College of Medicine, Seoul, Korea
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Vargas-Chacoff L, Saavedra E, Oyarzún R, Martínez-Montaño E, Pontigo JP, Yáñez A, Ruiz-Jarabo I, Mancera JM, Ortiz E, Bertrán C. Effects on the metabolism, growth, digestive capacity and osmoregulation of juvenile of Sub-Antarctic Notothenioid fish Eleginops maclovinus acclimated at different salinities. Fish Physiol Biochem 2015; 41:1369-1381. [PMID: 26148800 DOI: 10.1007/s10695-015-0092-3] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2015] [Accepted: 06/29/2015] [Indexed: 06/04/2023]
Abstract
In this study we assessed the influence of three different environmental salinities (5, 15 and 31 psu during 90 days) on growth, osmoregulation, energy metabolism and digestive capacity in juveniles of the Notothenioid fish Eleginops maclovinus. At the end of experimental time samples of plasma, liver, gill, intestine, kidney, skeletal muscle, stomach and pyloric caeca were obtained. Growth, weight gain, hepatosomatic index and specific growth rate increased at 15 and 31 psu and were lower at 5 psu salinity. Gill Na(+), K(+)-ATPase (NKA) activity presented a "U-shaped" relationship respect to salinity, with its minimum rates at 15 psu, while this activity correlated negatively with salinity at both anterior and posterior intestinal portions. No significant changes in NKA activity were observed in kidney or mid intestine. Large changes in plasma, metabolite levels and enzymatic activities related to energy metabolism in liver, gill, intestine, kidney and muscle were generally found in the groups exposed to 5 and 31 psu compared to the 15 psu group. Only the pepsin activity (digestive enzymes) assessed enhanced with environmental salinity, while pyloric caeca trypsin/chymotrypsin ratio decreased. This study suggests that juvenile of E. maclovinus presents greater growth near its iso-osmotic point (15 psu) and hyperosmotic environment (31 psu). Acclimation to low salinity increased the osmoregulatory expenditure as seen by the gill and anterior intestine results, while at high salinity, branchial osmoregulatory activity was also enhanced. This requires the mobilization of lipid stores and amino acids, thereby holding the growth of fish back. The subsequent reallocation of energy sources was not sufficient to maintain the growth rate of fish exposed to 5 psu. Thus, E. maclovinus juveniles present better growth efficiencies in salinities above the iso-osmotic point and hyperosmotic environment of this species, showing their best performance at 15 psu as seen by the main osmoregulatory and energy metabolism enzymatic activities.
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Affiliation(s)
- L Vargas-Chacoff
- Instituto de Ciencias Marinas y Limnológicas, Universidad Austral de Chile, Valdivia, Chile.
| | - E Saavedra
- Instituto de Ciencias Marinas y Limnológicas, Universidad Austral de Chile, Valdivia, Chile
| | - R Oyarzún
- Instituto de Ciencias Marinas y Limnológicas, Universidad Austral de Chile, Valdivia, Chile
| | - E Martínez-Montaño
- Centro de Investigación y Desarrollo (CIEN Austral) CONICYT Regional R10C1002, Universidad Austral de Chile, Av. Los Pinos s/n, Balneario Pelluco, Puerto Montt, Chile
- Facultad de Ciencias del Mar, Universidad Autónoma de Sinaloa, PO Box 610, 82000, Mazatlán, Sinaloa, Mexico
| | - J P Pontigo
- Instituto de Ciencias Marinas y Limnológicas, Universidad Austral de Chile, Valdivia, Chile
- Instituto de Bioquímica y Microbiología, Interdisciplinary Center for Aquaculture Research (FONDAP-INCAR), Universidad Austral de Chile, Valdivia, Chile
| | - A Yáñez
- Instituto de Bioquímica y Microbiología, Interdisciplinary Center for Aquaculture Research (FONDAP-INCAR), Universidad Austral de Chile, Valdivia, Chile
| | - I Ruiz-Jarabo
- Departamento de Biología, Facultad de Ciencias del Mar y Ambientales, Campus de Excelencia Internacional del Mar (CEI-MAR), Universidad de Cádiz, Cádiz, Spain
- Centre of Marine Sciences (CCMar), CIMAR-Laboratório Associado, Universidade do Algarve, Campus de Gambelas, 8005-139, Faro, Portugal
| | - J M Mancera
- Departamento de Biología, Facultad de Ciencias del Mar y Ambientales, Campus de Excelencia Internacional del Mar (CEI-MAR), Universidad de Cádiz, Cádiz, Spain
| | - E Ortiz
- Instituto de Ciencias Marinas y Limnológicas, Universidad Austral de Chile, Valdivia, Chile
| | - C Bertrán
- Instituto de Ciencias Marinas y Limnológicas, Universidad Austral de Chile, Valdivia, Chile
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Velasco R, Videla S, Villoria J, Ortiz E, Navarro X, Bruna J. Reliability and accuracy of quantitative sensory testing for oxaliplatin-induced neurotoxicity. Acta Neurol Scand 2015; 131:282-9. [PMID: 25313013 DOI: 10.1111/ane.12331] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/05/2014] [Indexed: 11/28/2022]
Abstract
OBJECTIVES Thermal quantitative sensory testing (QST) is a non-invasive procedure helpful in the assessment of the function of small Aδ and C nerve sensory fibres. Oxaliplatin (OXA) is an effective chemotherapeutic agent, but is frequently associated with neurotoxic dose-limiting side effects. This controlled clinical trial evaluated the reliability and accuracy of thermal QST for assessing the OXA-induced acute neuropathic syndrome, whose clinical hallmark is cold-triggered painful paraesthesia. MATERIALS & METHODS A testing protocol with the Thermal Sensory Analyzer (Medoc) was carried out in 20 colorectal cancer patients during the initial four cycles of OXA-based chemotherapy and in 20 age- and sex-matched healthy volunteers. Testing was carried out on the hands and included the determination of thermal detection and pain thresholds and the intensity of pain evoked by cold stimuli. Calculations were made of: coefficients of test-retest and inter-rater reliability, indices of responsiveness and parameters that quantify diagnostic accuracy. RESULTS Thermal thresholds showed moderate to good reliability (ρ ≥ 0.383), but were not consistently responsive to the effects of chemotherapy (cold pain thresholds decreased in both groups, although almost twice in patients compared to healthy volunteers). Conversely, the intensity of pain evoked by suprathreshold cold stimuli was reliable (ρ ≥ 0.822), responsive (detected changes over time) and discriminated between patients and healthy volunteers (area under the ROC curve = 0.700). CONCLUSIONS The procedure was reliable and accurate to evaluate cold hyperalgesia resulting from OXA administration. The data provided may be used to define efficacy endpoints for future clinical trials of therapies for OXA-induced neuropathies and calculate appropriate sample sizes.
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Affiliation(s)
- R. Velasco
- Unit of Neuro-Oncology; Hospital Universitari de Bellvitge-ICO Duran i Reynals; Hospitalet de Llobregat; Barcelona Spain
- Department of Cell Biology, Physiology and Immunology; Institute of Neurosciences; Universitat Autònoma de Barcelona; Centro de Investigación en Red sobre Enfermedades Neurodegenerativas (CIBERNED); Bellaterra Spain
| | - S. Videla
- Clinical Research and Development; Laboratorios del Doctor Esteve, S.A.; Barcelona Spain
| | - J. Villoria
- Department of Design and Biometrics; Medicxact, S.L.; Alpedrete Spain
| | - E. Ortiz
- Clinical Research and Development; Laboratorios del Doctor Esteve, S.A.; Barcelona Spain
| | - X. Navarro
- Department of Cell Biology, Physiology and Immunology; Institute of Neurosciences; Universitat Autònoma de Barcelona; Centro de Investigación en Red sobre Enfermedades Neurodegenerativas (CIBERNED); Bellaterra Spain
| | - J. Bruna
- Department of Cell Biology, Physiology and Immunology; Institute of Neurosciences; Universitat Autònoma de Barcelona; Centro de Investigación en Red sobre Enfermedades Neurodegenerativas (CIBERNED); Bellaterra Spain
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Plotkin SA, Liese J, Madhi SA, Ortiz E. A DTaP–IPV//PRP∼T vaccine (Pentaxim™): a review of 16 years’ clinical experience. Expert Rev Vaccines 2014; 10:981-1005. [DOI: 10.1586/erv.11.72] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Pancharoen C, Chotpitayasunondh T, Chuenkitmongkol S, Ortiz E. Long-term immunogenicity assessment of a DTaP-IPV//PRP-T vaccine given at 2, 4, 6 and 18-19 months of age, and immunogenicity and safety of a DTaP-IPV vaccine given as a booster dose at 4 to 6 years of age in Thai children. Southeast Asian J Trop Med Public Health 2012; 43:687-698. [PMID: 23077849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Booster vaccination of infants aims to further reduce the burden of childhood infectious diseases. This study assessed the antibody persistence induced by a primary series vaccination at 2, 4, 6 months of age and a first booster at 18-19 months of age with a pentavalent diphtheria, tetanus, acellular pertussis, inactivated poliovirus, Haemophilus influenzae type b combined vaccine (DTaP-IPV//PRP-T) in 4-6 year-old Thai children (N=123). The safety and immunogenicity of a tetravalent acellular pertussis combined vaccine (containing the same DTaP-IPV antigens as the previous vaccine) given as a second booster at 4 to 6 years of age was also evaluated. Seroprotective antibody levels against diphtheria (> or = 0.01 IU/ml), tetanus (> or = 0.10 IU/ml), and polioviruses (> or = 8 1/dil) were maintained 4-6 years after primary-vaccination and first booster by > or = 92.7% of children, and anti-pertussis antibodies > or = 5 EU/ml were observed in the majority of children. The second booster with DTaP-IPV elicited a strong response for all antigens. GMT or GMC ratios for all antigens at the pre- and post-booster samples were from 4.7 to 52.5. Primary vaccination at 2, 4, 6 and a booster at 18-19 months of age with the DTaP-IPV//PRP-T vaccine induced satisfactory antibody persistence at 4-6 years of age. A second booster with DTaP-IPV induced a strong immune response and was well tolerated.
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Dutta AK, Verghese VP, Pemde H, Mathew LG, Ortiz E. Immunogenicity and safety of a DTaP-IPV//PRP∼T vaccine (Pentaxim) booster dose during the second year of life in Indian children primed with the same vaccine. Indian Pediatr 2012; 49:793-8. [DOI: 10.1007/s13312-012-0191-5] [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] [Received: 11/04/2011] [Accepted: 01/12/2012] [Indexed: 10/27/2022]
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Chotpitayasunondh T, Thisyakorn U, Pancharoen C, Chuenkitmongkol S, Ortiz E. Antibody persistence after primary and booster doses of a pentavalent vaccine against diphtheria, tetanus, acellular pertussis, inactivated poliovirus, haemophilus influenzae type B vaccine among Thai children at 18-19 months of age. Southeast Asian J Trop Med Public Health 2012; 43:442-454. [PMID: 23082595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The World Health Organization recommends a booster dose of a pertussis-containing vaccine for children aged 1-6 years, preferably during the second year of life. This study assessed the immunogenicity and safety of a pentavalent combination vaccine containing diphtheria, tetanus, acellular pertussis, inactivated poliovirus, and conjugated-Hib polysaccharide antigens, [(DTaP-IPV//PRP-T (Pentaxim)], as a booster at 18-19 months of age. Participants had received primary doses of the same vaccine at 2, 4 and 6 months of age. Antibody concentrations were measured immediately before and one month after the booster dose. Adverse events were evaluated from parental reports. Geometric mean concentrations (GMCs) or titers (GMTs) decreased from post-primary to pre-booster vaccination; however, at least 94.4% of children had protective levels of anti-tetanus (> or = 0.01 IU/ml), antipoliovirus (> or = 81/dil) and anti-PRP (Hib, > or = 0.15 microg/ml) antibodies prior to the booster. Anti-diphtheria antibody titers > or = 0.01 IU/ml were also observed in the majority of children pre-booster. One month after the booster, seroprotection rates were 99.4% for PRP (> or = 1.0 microg/ml), 95.0% for diphtheria (> or = 0.10 IU/ml) and 100% for tetanus (> or = 0.1 IU/ml) and poliovirus types 1, 2, 3 (> or = 81/dil). At least 93.1% of subjects had 4 fold post-booster increases in anti-pertussis antibody titers. GMCs increased from 14.0 to 307.3 EU/ml and from 13.9 to 271.9 EU/ml for anti-PT and anti-FHA, respectively. Anti-PRP GMC increased from 1.2 to 62.2 microg/ml. The booster was well tolerated. A booster dose during the second year of life was safe and induced a strong immune response, indicative of long-term protection.
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Escriche M, Sust M, Xu Z, Encabo M, Farrán R, Gomez A, Puig S, Martínez-Cabot A, Encina G, Ortiz E, Casals S, Gich I, Barbanoj MJ, Abadías M. 446 PHARMACOKINETIC PROFILE OF A SELECTIVE SIGMA-1 RECEPTOR ANTAGONIST (S1RA) IN HUMAN. ACTA ACUST UNITED AC 2012. [DOI: 10.1016/s1754-3207(10)70451-x] [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: 11/28/2022]
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Madhi SA, Cutland C, Jones S, Groome M, Ortiz E. One-year post-primary antibody persistence and booster immune response to a DTaP-IPV//PRP~T vaccine (Pentaxim) given at 18 - 19 months of age in South African children primed at 6, 10 and 14 weeks of age with the same vaccine. S Afr Med J 2011; 101:879-883. [PMID: 22273029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2011] [Accepted: 08/23/2011] [Indexed: 05/31/2023] Open
Abstract
OBJECTIVE To assess the immunogenicity and safety of a pentavalent diphtheria, tetanus, acellular pertussis, inactivated poliovirus, Hib polysaccharide-conjugate vaccine booster. DESIGN, SETTING AND PARTICIPANTS A DTaP-IPV//PRP~T vaccine (Pentaxim, a Sanofi Pasteur AcXim family vaccine) was given to 182 healthy children in South Africa at 18 - 19 months of age following priming with the same vaccine plus a monovalent hepatitis B vaccine at 6, 10 and 14 weeks of age. Outcome measures. Seroprotection (SP) and seroconversion (SC) rates, geometric mean titres (GMTs) and concentrations (GMCs) were assessed before, and 1 month after, the booster dose. Safety was assessed using parental reports. RESULTS One month after primary vaccination, at least 94.3% of participants were seroprotected against tetanus (≥ 0.01 IU/ml), diphtheria (≥ 0.01 IU/ml), poliovirus (≥ 8 1/dil) and Haemophilus influenzae type b (Hib) infection (≥ 0.15 µg/ml). Before the booster dose, the SP rates ranged from 65.7% to 100%. One month after the booster dose, SP rates were 97.7% for Hib (anti-PRP titre 1.0 μg/ml), 100.0% for diphtheria (≥ 0.1 IU/ml) and 100% for tetanus (≥ 0.1 IU/ml) and poliovirus types 1, 2, 3 (≥ 8 1/dil). At least 95.7% of participants had 4 fold post-booster increases in anti-pertussis antibody titres. GMTs increased from 11.21 to 465.51 EU/ml and from 12.89 to 520.35 EU/ml for anti-PT and anti-FHA respectively. Anti-PRP GMT increased from 0.35 to 47.01 μg/ml. The DTaP-IPV//PRP~T vaccine booster was well tolerated, with fever ≥ 39.0°C in only 1.7% of participants. CONCLUSIONS Antibody persistence following priming was satisfactory. The pentavalent DTaP-IPV//PRP~T vaccine booster was highly immunogenic and well tolerated.
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Affiliation(s)
- Shabir Ahmed Madhi
- Department of Science and Technology, University of Witwatersrand, Johannesburg, South Africa
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Quintero-Hernández V, Ortiz E, Rendón-Anaya M, Schwartz EF, Becerril B, Corzo G, Possani LD. Scorpion and spider venom peptides: gene cloning and peptide expression. Toxicon 2011; 58:644-63. [PMID: 21978889 DOI: 10.1016/j.toxicon.2011.09.015] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2011] [Revised: 09/08/2011] [Accepted: 09/22/2011] [Indexed: 01/05/2023]
Abstract
This communication reviews most of the important findings related to venom components isolated from scorpions and spiders, mainly by means of gene cloning and expression. Rather than revising results obtained by classical biochemical studies that report structure and function of venom components, here the emphasis is placed on cloning and identification of genes present in the venomous glands of these arachnids. Aspects related to cDNA library construction, specific or random ESTs cloning, transcriptome analysis, high-throughput screening, heterologous expression and folding are briefly discussed, showing some numbers of species and components already identified, but also shortly mentioning limitations and perspectives of research for the future in this field.
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Affiliation(s)
- V Quintero-Hernández
- Instituto de Biotecnología - UNAM, Avenida Universidad, Colonia Chamilpa, Cuernavaca, Morelos, Mexico
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Li RC, Li FX, Li YP, Hou QM, Li CG, Li YN, Chen FS, Hu XZ, Su WB, Zhang SM, Fang HH, Ye Q, Zeng TD, Liu TX, Li XB, Huang YN, Deng ML, Zhang YP, Ortiz E. Immunogenicity and safety of a pentavalent acellular pertussis combined vaccine including diphtheria, tetanus, inactivated poliovirus and conjugated Haemophilus Influenzae type b polysaccharide for primary vaccination at 2, 3, 4 or 3, 4, 5 months of age in infants in China. Vaccine 2011; 29:1913-20. [PMID: 21219984 DOI: 10.1016/j.vaccine.2010.12.103] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2010] [Revised: 12/17/2010] [Accepted: 12/22/2010] [Indexed: 11/25/2022]
Abstract
The aim was to demonstrate the immunogenicity and safety of a DTaP-IPV//PRP-T combined vaccine (Pentaxim(®)) compared to individual vaccines in infants in the People's Republic of China. Infants (N=792) were randomly assigned to receive DTaP-IPV//PRP-T at 2, 3 and 4 months of age (Group A) or 3, 4 and 5 months of age (Group B), or DTaP (Wuhan Institute of Biological Products), PRP-T (Act-Hib(®)) and IPV (Imovax(®) Polio) at 3, 4 and 5 months of age (Group C). Antibody titers were measured pre- and 1 month after the third vaccination; non-inferiority analyses were performed for seroprotection/seroconversion (SP/SC) rates. Safety was assessed 1 month after the primary series. SP/SC rates for the DTaP-IPV//PRP-T vaccine were high and non-inferior to the controls. Reactogenicity was low for each group and no hypotonic hyporesponsive episode or seizure was reported. In conclusion, the DTaP-IPV//PRP-T vaccine was highly immunogenic, non-inferior to the commercially available control vaccines and had a good safety profile for both primary administration schedules.
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Affiliation(s)
- Rong Cheng Li
- Guanxi Autonomous Region Center for Disease Prevention and Control, China
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Rodriguez-Gabin AG, Ortiz E, Demoliner K, Si Q, Almazan G, Larocca JN. Interaction of Rab31 and OCRL-1 in oligodendrocytes: its role in transport of mannose 6-phosphate receptors. J Neurosci Res 2010; 88:589-604. [PMID: 19795375 DOI: 10.1002/jnr.22236] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Rab31, a protein that we cloned from an oligodendrocyte cDNA library, is required for transport of mannose 6-phosphate receptors (MPRs) from the trans-Golgi network (TGN) to endosomes and for Golgi/TGN organization. Here we extend the knowledge of the mechanism of action of Rab31 by demonstrating its interaction with OCRL-1, a phosphatidylinositol 4,5-diphosphate 5-phosphatase (PI(4,5)P(2) 5-phosphatase) that regulates the levels of PI(4,5)P(2) and PI(4)P, molecules involved in transport and Golgi/TGN organization. We show that Rab31 interacts with OCRL-1 in a yeast two-hybrid system, GST-Rab31 pull-down experiments, and coimmunoprecipitation of OCRL-1 using oligodendrocyte culture lysates. Rab31 and OCRL-1 colocalize in the TGN, post-TGN carriers, and endosomes. Cation-dependent MPR (CD-MPR) is sorted to OCRL-1-containing carriers, but CD63 and vesicular stomatitis virus G (VSVG) are not. siRNA-mediated depletion of endogenous Rab31 causes collapse of the TGN apparatus and markedly decreases the levels of OCRL-1 in the TGN and endosomes. Our observations indicate that the role of Rab31 in the Golgi/TGN structure and transport of MPRs depends on its capability to recruit OCRL-1 to domains of the TGN where the formation of carriers occurs. The importance of our observations is highlighted by the fact that mutation of OCRL-1 causes demyelination in humans.
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Affiliation(s)
- A G Rodriguez-Gabin
- Department of Neurology, Albert Einstein College of Medicine, Yeshiva University, Bronx, New York 10461, USA
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Thisyakorn U, Chotpitayasunondh T, Pancharoen C, Chuenkitmongkol S, Ortiz E. Evaluation of an acellular pertussis, diphtheria, tetanus, inactivated poliovirus, Hib-conjugate combined vaccine (Pentaxim) at 2, 4, and 6 months of age plus hepatitis B vaccine at birth, 2, and 6 months of age in infants in Thailand. Southeast Asian J Trop Med Public Health 2010; 41:450-462. [PMID: 20578530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
The objective of this study was to evaluate the immunogenicity and safety of a pentavalent vaccine (Pentaxim) containing diphtheria, tetanus, acellular pertussis, inactivated poliovirus, and Hib polysaccharide-conjugate (DTaP-IPV//PRP-T) antigens, in Thai children. One hundred eighty-six infants who had received a hepatitis B vaccine at birth were given a pentavalent vaccine at 2, 4 and 6 months of age and a hepatitis B vaccine concomitantly at 2 and 6 months of age. Immunogenicity was high for each vaccine antigen. The study vaccine was well tolerated and side effects were few. After the third dose, 100% of subjects had an anti-PRP > or = 0.15 microg/ml and 96.5% > or = 1.0 microg/ml; the anti-PRP GMT was 9.53 microg/ml. Seroprotective rates for diphtheria and tetanus (> or = 0.01 IU/ml) were 99.4% and 100%, respectively, and 100% for all three poliovirus types (> or = 8 1/dil U). The vaccine response rates to pertussis antigens (a 4-fold increase in antibody titer were 94.1% for PT and 93.0% for FHA. The DTaP-IPV//PRP-T vaccine given at 2, 4 and 6 months of age concomitantly with a monovalent hepatitis B vaccine, was well tolerated and highly immunogenic for primary immunization of infants in Thailand.
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Dutta AK, Verghese VP, Pemde HK, Mathew LG, Ortiz E. Immunogenicity and safety of a pentavalent diphtheria, tetanus, acellular pertussis, inactivated poliovirus, Haemophilus influenzae type B conjugate combination vaccine (Pentaxim) with hepatitis B vaccine. Indian Pediatr 2009; 46:975-982. [PMID: 19955579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
OBJECTIVE To obtain immunogenicity and safety data for a pentavalent combination vaccine (diphtheria, tetanus, acellular pertussis, inactivated poliovirus, Hib polysaccharide-conjugate). DESIGN Multicenter, open, Phase III clinical study. A DTaP-IPV//PRP approximately T vaccine (Pentaxim) was given at 6,10,14 weeks of age; and Hepatitis B vaccine at 0,6,14 or at 6,10,14 weeks of age. Immunogenicity assessed 1 month post-3rd dose; safety assessed for 30 minutes by the investigator, then by parents and investigators to 8 days and 30 days post-vaccination. SETTING Tertiary-care hospitals. PARTICIPANTS/PATIENTS 226 healthy Indian infants (6 weeks of age). MAIN OUTCOME MEASURES Immunogenicity and safety. RESULTS Immunogenicity was high for each vaccine antigen, and similar to a historical control study (France) following a 2,3,4 month of age administration schedule. Post-3rd dose, 98.6% of subjects had anti-PRP >0.15 mg/mL and 90.0% had titers >1.0 mg/mL; the anti-PRP GMT was 4.1 micrograms/mL. Seroprotection rates for diphtheria and tetanus (>0.01 IU/mL) were 99.1% and 100%; and 100%, 99.1% and 100%, for polio types 1,2 and 3 (>8 [1/dil]) respectively. Anti-polio GMTs were 440.5,458.9, and 1510.7 (1/dil) for types 1,2 and 3 respectively. The vaccine response rates to pertussis antigens (4-fold increase in antibody concentration) were 93.7% for PT and 85.7% for FHA; the 2-fold increase was 97.1% and 92.4%. Vaccine reactogenicity was low with adverse reaction incidence not increasing with subsequent doses. CONCLUSION The DTaP-IPV//PRP approximately T vaccine, given concomitantly with monovalent hepatitis B vaccine, was highly immunogenic at 6, 10 and 14 weeks of age in infants in India. The vaccine was well tolerated.
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MESH Headings
- Antibodies, Bacterial/blood
- Diphtheria-Tetanus-acellular Pertussis Vaccines/administration & dosage
- Diphtheria-Tetanus-acellular Pertussis Vaccines/adverse effects
- Diphtheria-Tetanus-acellular Pertussis Vaccines/immunology
- Female
- Haemophilus Vaccines/administration & dosage
- Haemophilus Vaccines/adverse effects
- Haemophilus Vaccines/immunology
- Haemophilus influenzae type b/immunology
- Hepatitis B Vaccines/administration & dosage
- Hepatitis B Vaccines/adverse effects
- Hepatitis B Vaccines/immunology
- Humans
- India
- Infant
- Male
- Poliovirus Vaccine, Inactivated/administration & dosage
- Poliovirus Vaccine, Inactivated/adverse effects
- Poliovirus Vaccine, Inactivated/immunology
- Prospective Studies
- Vaccines, Combined/administration & dosage
- Vaccines, Combined/adverse effects
- Vaccines, Combined/immunology
- Vaccines, Conjugate/administration & dosage
- Vaccines, Conjugate/adverse effects
- Vaccines, Conjugate/immunology
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Affiliation(s)
- A K Dutta
- Lady Hardinge Medical College and Associated Hospitals, New Delhi, India
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Matute A, Rodriguez J, Ortiz E, Norén G. Complications in the Hystrectomies Performed between 2004 and 2008 at ABC Medical Center. J Minim Invasive Gynecol 2009. [DOI: 10.1016/j.jmig.2009.08.322] [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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Micheli C, McCubbin J, Murphy P, Eswaran H, Lowery CL, Ortiz E, Preissl H. Verification of fetal brain responses by coregistration of fetal ultrasound and fetal magnetoencephalography data. Neuroimage 2009; 49:1469-78. [PMID: 19778620 DOI: 10.1016/j.neuroimage.2009.09.025] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2009] [Revised: 09/01/2009] [Accepted: 09/15/2009] [Indexed: 10/20/2022] Open
Abstract
Fetal magnetoencephalography (fMEG) is used to study neurological functions of the developing fetus by measuring magnetic signals generated by electrical sources within the fetal brain. For this aim either auditory or visual stimuli are presented and evoked brain activity or spontaneous activity is measured at the sensor level. However a limiting factor of this approach is the low signal to noise ratio (SNR) of recorded signals. To overcome this limitation, advanced signal processing techniques such as spatial filters (e.g., beamformer) can be used to increase SNR. One crucial aspect of this technique is the forward model and, in general, a simple spherical head model is used. This head model is an integral part of a model search approach to analyze the data due to the lack of exact knowledge about the location of the fetal head. In the present report we overcome this limitation by a coregistration of volumetric ultrasound images with fMEG data. In a first step we validated the ultrasound to fMEG coregistration with a phantom and were able to show that the coregistration error is below 2 cm. In the second step we compared the results gained by the model search approach to the exact location of the fetal head determined on pregnant mothers by ultrasound. The results of this study clearly show that the results of the model search approach are in accordance with the location of the fetal head.
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Affiliation(s)
- C Micheli
- Institute of Medical Psychology and Behavioral Neurobiology, University of Tübingen, Germany.
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Cañete P, Carmona-Saborido L, Ortiz E, Escriba M, Pellicer A, Sanchez M. Observational study in adolescents and young women with human papillomavirus related cytological abnormalities. Fertil Steril 2009. [DOI: 10.1016/j.fertnstert.2009.07.074] [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: 10/20/2022]
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Abadias M, Escriche M, Ortiz E, Casals S, Xu Z, Gómez A, Encina G, Sust M, González A, Antonijoan RM, Puntes M, Barbanoj M. 700 FIRST‐IN‐HUMAN (FIH) STUDY IN HEALTHY MALE VOLUNTEERS OF A NEW SELECTIVE SIGMA‐1 RECEPTOR ANTAGONIST (S1RA). Eur J Pain 2009. [DOI: 10.1016/s1090-3801(09)60703-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- M. Abadias
- Research and Development. Lab. Dr. Esteve, Barcelona, Spain
| | - M. Escriche
- Research and Development. Lab. Dr. Esteve, Barcelona, Spain
| | - E. Ortiz
- Research and Development. Lab. Dr. Esteve, Barcelona, Spain
| | - S. Casals
- Research and Development. Lab. Dr. Esteve, Barcelona, Spain
| | - Z. Xu
- Research and Development. Lab. Dr. Esteve, Barcelona, Spain
| | - A. Gómez
- Research and Development. Lab. Dr. Esteve, Barcelona, Spain
| | - G. Encina
- Research and Development. Lab. Dr. Esteve, Barcelona, Spain
| | - M. Sust
- Research and Development. Lab. Dr. Esteve, Barcelona, Spain
| | - A. González
- Research and Development. Lab. Dr. Esteve, Barcelona, Spain
| | - RMí. Antonijoan
- Centre d'Investigació de Medicaments. H. de la Sta. Creu i Sant Pau, Barcelona, Spain
| | - M. Puntes
- Centre d'Investigació de Medicaments. H. de la Sta. Creu i Sant Pau, Barcelona, Spain
| | - M.J. Barbanoj
- Centre d'Investigació de Medicaments. H. de la Sta. Creu i Sant Pau, Barcelona, Spain
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Ortiz E, Cuán A, Badillo C, Cortés-Romero C, Wang Q, Noreña L. Electronic properties of poly(vinylidene fluoride): a density functional theory study. Molecular Simulation 2009. [DOI: 10.1080/08927020802680729] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Thisyakorn U, Pancharoen C, Chuenkitmongkol S, Ortiz E. Immunogenicity and safety of a DTaP-IPV//PRP-T vaccine (Pentaxim) booster during the second year of life in Thai children primed with an acellular pertussis combined vaccine. Southeast Asian J Trop Med Public Health 2009; 40:282-294. [PMID: 19323013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
This study assessed the booster immune response to a pentavalent combination vaccine containing diphtheria, tetanus, acellular pertussis, inactivated poliovirus, and conjugated-Hib polysaccharide antigens, (DTaP-IPV//PRP-T, Pentaxim, an AcXim family vaccine) at 18-24 months of age. Study subjects received a three-dose primary vaccination at 2, 4 and 6 months with a hexavalent vaccine containing the same antigens plus recombinant hepatitis B surface antigen. Antibody concentrations were measured immediately before and one month after vaccination. Reactogenicity and safety were evaluated from parent reports. Before the booster dose, 92.9% of the 156 children included in this study still had anti-PRP antibody titers > or = 0.15 microg/ml. Seroprotective concentrations of anti-diphtheria, tetanus and poliovirus antibodies were maintained in 97 to 100% of subjects in the interval between primary and booster vaccination. One month after the booster dose, all subjects had seroprotective anti-PRP (> or = 1 microg/ml), diphtheria and tetanus (> or = 0.1 IU/ml) and poliovirus types 1, 2, 3 (> or = 8 1/dil) antibody levels. At least 92.3% of subjects had 4-fold increases in concentrations of anti-pertussis antigens from pre- to post-booster dose. Geometric mean titers (GMTs) increased from 3.8 to 181.2 EU/ml and from 18.0 to 289.7 EU/ml for anti-PT and anti-FHA, respectively. The anti-PRP GMT increased from 1.6 to 58.0 microg/ml. The pentavalent DTaP-IPV//PRP-T vaccine booster was well tolerated and highly immunogenic, following primary vaccination with a hexavalent vaccine.
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MESH Headings
- Antibodies, Bacterial/blood
- Antibodies, Viral/blood
- Antibodies, Viral/immunology
- Child, Preschool
- Diphtheria-Tetanus-acellular Pertussis Vaccines/administration & dosage
- Diphtheria-Tetanus-acellular Pertussis Vaccines/adverse effects
- Diphtheria-Tetanus-acellular Pertussis Vaccines/immunology
- Female
- Haemophilus Vaccines
- Hepatitis B Vaccines/administration & dosage
- Hepatitis B Vaccines/adverse effects
- Hepatitis B Vaccines/immunology
- Humans
- Immunization Schedule
- Immunization, Secondary
- Infant
- Male
- Poliovirus Vaccine, Inactivated/administration & dosage
- Poliovirus Vaccine, Inactivated/adverse effects
- Poliovirus Vaccine, Inactivated/immunology
- Tetanus Toxoid
- Vaccines, Combined/administration & dosage
- Vaccines, Combined/adverse effects
- Vaccines, Combined/immunology
- Vaccines, Conjugate/administration & dosage
- Vaccines, Conjugate/adverse effects
- Vaccines, Conjugate/immunology
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Affiliation(s)
- Usa Thisyakorn
- Department of Pediatrics, Faculty of Medicine Chulalongkorn University Hospital, Bangkok, Thailand
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Dutta A, Verghese V, Ortiz E. Primary Vaccination of Indian Infants at 6, 10, 14 Weeks of Age with a Diphtheria, Tetanus, Acellular Pertussis, Inactivated Poliovirus, Haemophilus Influenzae Type B Conjugate Vaccine (Pentaxim). Int J Infect Dis 2008. [DOI: 10.1016/j.ijid.2008.05.433] [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: 10/21/2022] Open
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Thisyakorn U, Chotpitayasunondh T, Pancharoen C, Chuenkitmongkol S, Ortiz E. An Acellular Pertussis, Diphtheria, Tetanus, Inactivated Poliovirus, Hib-Conjugate Combined Vaccine (Pentaxim) at 2, 4, and 6 Months of Age Plus Hepatitis B at Birth, 2, and 6 Months of Age in Infants in Thailand. Int J Infect Dis 2008. [DOI: 10.1016/j.ijid.2008.05.432] [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: 11/29/2022] Open
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Madhi S, Cutland C, Groome M, Ortiz E. Primary Vaccination with a Diphtheria, Tetanus, Acellular Pertussis, Haemophilus Influenzae Type B Conjugate Vaccine (Pentaxim) at 6, 10 and 14 Weeks of Age of Infants in South Africa. Int J Infect Dis 2008. [DOI: 10.1016/j.ijid.2008.05.427] [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: 11/24/2022] Open
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Connor JR, Thompson K, Ortiz E, Pasquini JM. Manipulation of brain iron status in two mutant mouse models: effects on myelin. J Neurochem 2008. [DOI: 10.1046/j.1471-4159.81.s1.16_5.x] [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: 11/20/2022]
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Ortiz E, Pasquini L, Galiano M, Hallak M, Soto E, Pasquini J. Effects of apotransferrin upon different components of the cytoskeleton in primary oligodendroglial cell cultures. J Neurochem 2008. [DOI: 10.1046/j.1471-4159.81.s1.21_5.x] [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: 11/20/2022]
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Capeding MR, Cadorna-Carlos J, Book-Montellano M, Ortiz E. Immunogenicity and safety of a DTaP-IPV//PRP approximately T combination vaccine given with hepatitis B vaccine: a randomized open-label trial. Bull World Health Organ 2008; 86:443-51. [PMID: 18568273 PMCID: PMC2647469 DOI: 10.2471/blt.07.042143] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2007] [Revised: 12/01/2007] [Accepted: 01/13/2008] [Indexed: 11/27/2022] Open
Abstract
OBJECTIVE To determine seroprotection and vaccine response rates produced by a diphtheria-tetanus-acellular pertussis-inactivated poliovirus-Haemophilus influenzae type-b conjugate (DTaP-IPV//PRP approximately T) vaccine containing a polyribosyl-ribitol-phosphate (PRP)-tetanus toxoid conjugate (Pentaxim) and given with a hepatitis B vaccine. METHODS In this multicentre open-label trial, 424 infants who received DTaP-IPV//PRP approximately T at 6, 10 and 14 weeks of age were also randomized to receive hepatitis B vaccine at either 6, 10 and 14 weeks or 0, 6 and 14 weeks of age. Antibody levels were determined at 6 and 18 weeks of age, and reactogenicity was monitored using parental reports. FINDINGS Immunogenicity was high for all vaccine antigens and was similar to that in a historical control study. After primary vaccination, 98.7% of all infants had an anti-PRP antibody titre > 0.15 microg/ml. Seroprotection against poliovirus type-1, -2 and -3 and tetanus was obtained in all infants, and against diphtheria, in 97.1%. Pertussis seroconversion, defined as a > fourfold increase in antibody titre, occurred in 95.3% for anti-pertussis toxoid antibody and in 89.0% for anti-filamentous haemagglutinin antibody. The hepatitis B seroprotection rate was 99.5% with administration at 0, 6 and 14 weeks, and 97.8%, at 6, 10 and 14 weeks. However, the antibody titre was higher with the 0, 6 and 14-week schedule (601 mIU/ml versus 207 mIU/ml). The reactogenicity of both vaccines was low. CONCLUSION The DTaP-IPV//PRP approximately T vaccine was highly immunogenic. The anti-hepatitis B antibody response was seroprotective with both schedules, though the antibody titre was higher with the 0, 6 and 14-week schedule.
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Lin TY, Wang YH, Huang YC, Chiu CH, Lin PY, Chen CJ, Chavand P, Ortiz E. One-year post-primary antibody persistence and booster immune response to a fully liquid five-component acellular pertussis, diphtheria, tetanus, inactivated poliomyelitis, Haemophilus influenzae type b conjugate vaccine. Int J Infect Dis 2007; 11:488-95. [PMID: 17349809 DOI: 10.1016/j.ijid.2007.01.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2006] [Revised: 12/15/2006] [Accepted: 01/21/2007] [Indexed: 11/21/2022] Open
Abstract
OBJECTIVE To evaluate antibody persistence one year after three-dose primary vaccination and booster immune response during the second year of life for a fully liquid diphtheria-tetanus-acellular pertussis-inactivated poliomyelitis-Haemophilus influenzae type b (DTaP-IPV-PRP approximately T) vaccine. METHODS Infants at 18-19 months of age were given a booster dose of either DTaP-IPV-PRP approximately T (group A) or DTaP-IPV plus PRP approximately T at separate injection sites (group B), after primary vaccination at two, four and six months of age, with the same vaccines. Antibody concentrations were measured pre- and post-booster. Reactogenicity and safety were evaluated from parent reports. RESULTS Before the booster dose, 93.1% of group A and 95.1% of group B children still had anti-PRP antibody titers > or =0.15 microg/ml. All children had antibody levels believed to protect against tetanus, polio 1 (except one subject in group B), polio 2, polio 3, and diphtheria (except one subject in group A). At least 94% of children still had antibody concentrations > or =5 ELISA units (EU) to pertussis antigens (pertussis toxoid (PT), filamentous hemagglutinin (FHA), pertactin (PRN), fimbriae 2 and 3 (FIM2+3)). One month after the booster dose, all subjects achieved antibody concentrations or titers believed to be protective for PRP (polyribose ribitol phosphate)(> or =1 microg/ml), diphtheria and tetanus (> or =0.1 IU/ml) and poliovirus types 1, 2, and 3 (> or =81/dil.), and at least 90.5% of subjects had four-fold increases in antibody concentrations to pertussis antigens following the booster. Anti-PRP geometric mean titers (GMTs) increased from 1.07 to 59.6 microg/ml and from 1.8 to 62.2 microg/ml in groups A and B, respectively. Both vaccine groups showed low reactogenicity rates. CONCLUSIONS The fully liquid pentavalent DTaP-IPV-PRP approximately T vaccine is highly immunogenic, with good antibody persistence for each antigen approximately one year after primary vaccination and strong booster responses at 18-19 months of age. Because this combined vaccine is fully liquid, requiring no reconstitution of lyophilized PRP approximately T, the ease of use and proper administration are improved.
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Affiliation(s)
- Tzou-Yien Lin
- Department of Pediatrics, Chang Gung Children's Hospital, Chang Gung Memorial Hospital, Chang Gung University Medicine, Taoyuan, Taipei, Taiwan
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Martiínez V, Maguregui MI, Alonso RM, Jiménez RM, Ortiz E. HIGH-PERFORMANCE LIQUID CHROMATOGRAPHY WITH AMPEROMETRIC DETECTION APPLIED TO THE DETERMINATION OF THE β-BLOCKER OXPRENOLOL IN URINE AND PHARMACEUTICALS. J LIQ CHROMATOGR R T 2007. [DOI: 10.1081/jlc-100101465] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- V. Martiínez
- a Departamento de Química Analítica, Facultad de Ciencias , Universidad del País Vasco , Apdo. 644, Bilbao, 48080, Spain
| | - M. I. Maguregui
- a Departamento de Química Analítica, Facultad de Ciencias , Universidad del País Vasco , Apdo. 644, Bilbao, 48080, Spain
| | - R. M. Alonso
- a Departamento de Química Analítica, Facultad de Ciencias , Universidad del País Vasco , Apdo. 644, Bilbao, 48080, Spain
| | - R. M. Jiménez
- a Departamento de Química Analítica, Facultad de Ciencias , Universidad del País Vasco , Apdo. 644, Bilbao, 48080, Spain
| | - E. Ortiz
- a Departamento de Química Analítica, Facultad de Ciencias , Universidad del País Vasco , Apdo. 644, Bilbao, 48080, Spain
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García-Fuentes L, Ortiz E, Jara V, Barón C. Preparative Isolation of a Soluble Form of Bovine Lung Angiotensin Converting Enzyme by Affinity and Size Exclusion Chromatography. J LIQ CHROMATOGR R T 2006. [DOI: 10.1080/10826079608014029] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- L. García-Fuentes
- a Departamento de Química Física Bioquímica y Química Inorgánica Facultad de Ciencias Experimentales , Universidad de Almería, Spain La Cañada de San Urbano , 04120, Almería, Spain
| | - E. Ortiz
- a Departamento de Química Física Bioquímica y Química Inorgánica Facultad de Ciencias Experimentales , Universidad de Almería, Spain La Cañada de San Urbano , 04120, Almería, Spain
| | - V. Jara
- a Departamento de Química Física Bioquímica y Química Inorgánica Facultad de Ciencias Experimentales , Universidad de Almería, Spain La Cañada de San Urbano , 04120, Almería, Spain
| | - C. Barón
- a Departamento de Química Física Bioquímica y Química Inorgánica Facultad de Ciencias Experimentales , Universidad de Almería, Spain La Cañada de San Urbano , 04120, Almería, Spain
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Lin TY, Wang YH, Chang LY, Huang YC, Kao HT, Lin PY, Lu HK, Chavand P, Ortiz E. A fully liquid diphtheria-tetanus-five component acellular pertussis-inactivated poliomyelitis--Haemophilus influenzae type b conjugate vaccine: immunogenicity and safety of primary vaccination in Taiwanese infants. Int J Infect Dis 2006; 11:129-36. [PMID: 16762579 DOI: 10.1016/j.ijid.2005.10.014] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2005] [Revised: 10/06/2005] [Accepted: 10/25/2005] [Indexed: 11/18/2022] Open
Abstract
OBJECTIVE To assess the immunogenicity of a fully liquid diphtheria-tetanus-five component acellular pertussis-inactivated poliomyelitis-Haemophilus influenzae type b (DTaP-IPV-Hib) conjugate vaccine compared to DTaP-IPV and lyophilized Hib conjugate vaccines given simultaneously at separate sites as a three-dose primary vaccination in Taiwanese infants. METHODS Two hundred infants were randomized to receive either DTaP-IPV-Hib or DTaP-IPV plus Hib vaccine at 2, 4, and 6 months of age. Both combined vaccines contained the same five pertussis antigens: pertussis toxoid (PT), filamentous hemagglutinin (FHA), pertactin (PRN), fimbriae 2 and 3 (FIM 2&3). Antibody concentrations were measured before the first and after the third dose. Reactogenicity was evaluated from parental reports. All subjects received hepatitis B vaccine at 0, 1, and 6 months of age following the national vaccination schedule of Taiwan. RESULTS The immunogenicity after the third dose was high for each vaccine antigen in both groups, and the vaccines had low reactogenicity. Statistical analysis showed no differences in the immune responses to the fully liquid DTaP-IPV-Hib vaccine compared with those to the DTaP-IPV plus Hib control vaccines, notably the anti-PRP (polyribose ribitol phosphate capsular polysaccharide) response, with 97-99% of infants having concentrations >or=1.0 microg/mL. Approximately 95% of all infants developed seroprotective levels of anti-hepatitis B surface antigen (HBs) antibodies (>or=10 mIU/mL). CONCLUSIONS Both combination vaccines had similar high immunogenicity for each antigen, and both were well tolerated. Thus, inclusion of a Haemophilus influenzae type b conjugate vaccine in the combination did not result in clinically significant decrease in the PRP response or increase reactogenicity. The fully liquid pentavalent vaccine has the advantages of not requiring reconstitution and of administration as a single injection.
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Abstract
We performed a comparative analysis of the conformation of the CDR1 of the human lambdaVI variable domains JTO and WIL and the equivalent loop of the lambdaI light chains RHE and KOL, which are representative of the type I canonical structure for lambda light chains. On the basis of the differences found in the main chain conformation, as well as the identity of the residues at key positions, we showed that the L1 of some lambdaVI light chains adopts a conformation that represents a new type of canonical structure. The conformation of the L1 of those lambdaVI light chains, is primarily determined by the presence of an Arg residue at position 25. The analysis of the lambdaVI light chain sequences so far reported, showed that near 25% of those proteins have Gly at position 25 instead of Arg, which represents an allotypic variant of the lambdaVI variable locus. The presence of Gly at position 25 in the L1 of lambdaVI light chains would imply a different conformation for this loop. Additionally, the position 68 in lambdaVI light chains, which is at the top of the FR3 loop, showed such spatial orientation and variability that suggested its participation in the conformation of the antigen recognition surface in this subgroup of lambda chains.
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Affiliation(s)
- L del Pozo Yauner
- Department of Molecular Medicine and Bioprocesses, Institute of Biotechnology, National Autonomous University of Mexico, Cuernavaca, Mexico
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49
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Ortiz E, Pasquini JM, Thompson K, Felt B, Butkus G, Beard J, Connor JR. Effect of manipulation of iron storage, transport, or availability on myelin composition and brain iron content in three different animal models. J Neurosci Res 2004; 77:681-9. [PMID: 15352214 DOI: 10.1002/jnr.20207] [Citation(s) in RCA: 186] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Several observations suggest that iron is an essential factor in myelination and oligodendrocyte biology. However, the specific role of iron in these processes remains to be elucidated. This role could be as an essential cofactor in metabolic processes or as a transcriptional or translational regulator. In this study, we used animals models each with a unique defect in iron availability, storage, or transfer to test the hypothesis that disruptions in these mechanisms affect myelinogenesis and myelin composition. Disruption of iron availability either by limiting dietary iron or by altering iron storage capacity resulted in a decrease in myelin proteins and lipids but not the iron content of myelin. Among the integral myelin proteins, proteolipid protein was most consistently affected, suggesting that limiting iron to oligodendrocytes results not only in hypomyelination but also in a decrease in myelin compaction. Mice deficient in transferrin must receive transferrin injections beginning at birth to remain viable, and these mice had increases in all of the myelin components and in the iron content of the myelin. This finding indicates that the loss of endogenous iron mobility in oligodendrocytes could be overcome by application of exogenous transferrin. Overall, the results of this study demonstrate how myelin composition can be affected by loss of iron homeostasis and reveal specific chronic changes in myelin composition that may affect behavior and attempts to rescue myelin deficits.
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Affiliation(s)
- E Ortiz
- Biological Chemistry Department, School of Pharmacy and Biochemistry, University of Buenos Aires, Buenos Aires, Argentina
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50
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Manoutcharian K, Acero G, Munguia ME, Becerril B, Massieu L, Govezensky T, Ortiz E, Marks JD, Cao C, Ugen K, Gevorkian G. Human single chain Fv antibodies and a complementarity determining region-derived peptide binding to amyloid-beta 1–42. Neurobiol Dis 2004; 17:114-21. [PMID: 15350972 DOI: 10.1016/j.nbd.2004.06.005] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [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: 01/09/2004] [Revised: 06/07/2004] [Accepted: 06/10/2004] [Indexed: 11/28/2022] Open
Abstract
A library of phage-displayed human single-chain Fv (scFv) antibodies was selected against the human amyloid-beta peptide (Abeta42). Two new anti-Abeta42 phage-displayed scFvs antibodies were obtained, and the sequences of their V(H) and Vkappa genes were analyzed. A synthetic peptide based on the sequence of Ig heavy chain (V(H)) complementarity-determining region (HCDR3) of the clone with the highest recognition signal was generated and determined to bind to Abeta42 in ELISA. Furthermore, we showed for the first time that an HCDR3-based peptide had neuroprotective potential against Abeta42 neurotoxicity in rat cultured hippocampal neurons. Our results suggest that not only scFvs recognizing Abeta42 but also synthetic peptides based on the V(H) CDR3 sequences of these antibodies may be novel potential candidates for small molecule-based Alzheimer's disease (AD) therapy.
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Affiliation(s)
- K Manoutcharian
- Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México (UNAM), AP 70228, Cuidad Universitaria, Mexico DF, 04510, Mexico
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