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Kramerova I, Kumagai-Cresse C, Ermolova N, Mokhonova E, Marinov M, Capote J, Becerra D, Quattrocelli M, Crosbie RH, Welch E, McNally EM, Spencer MJ. Spp1 (osteopontin) promotes TGFβ processing in fibroblasts of dystrophin-deficient muscles through matrix metalloproteinases. Hum Mol Genet 2019; 28:3431-3442. [PMID: 31411676 PMCID: PMC7345878 DOI: 10.1093/hmg/ddz181] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [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: 05/13/2019] [Revised: 07/15/2019] [Accepted: 07/18/2019] [Indexed: 12/20/2022] Open
Abstract
Duchenne muscular dystrophy (DMD) is caused by mutations in the gene encoding dystrophin. Prior work has shown that DMD progression can vary, depending on the genetic makeup of the patient. Several modifier alleles have been identified including LTBP4 and SPP1. We previously showed that Spp1 exacerbates the DMD phenotype in the mdx mouse model by promoting fibrosis and by skewing macrophage polarization. Here, we studied the mechanisms involved in Spp1's promotion of fibrosis by using both isolated fibroblasts and genetically modified mice. We found that Spp1 upregulates collagen expression in mdx fibroblasts by enhancing TGFβ signaling. Spp1's effects on TGFβ signaling are through induction of MMP9 expression. MMP9 is a protease that can release active TGFβ ligand from its latent complex. In support for activation of this pathway in our model, we showed that treatment of mdx fibroblasts with MMP9 inhibitor led to accumulation of the TGFβ latent complex, decreased levels of active TGFβ and reduced collagen expression. Correspondingly, we found reduced active TGFβ in Spp1-/-mdxB10 and Mmp9-/-mdxB10 muscles in vivo. Taken together with previous observations of reduced fibrosis in both models, these data suggest that Spp1 acts upstream of TGFβ to promote fibrosis in mdx muscles. We found that in the context of constitutively upregulated TGFβ signaling (such as in the mdxD2 model), ablation of Spp1 has very little effect on fibrosis. Finally, we performed proof-of-concept studies showing that postnatal pharmacological inhibition of Spp1 reduces fibrosis and improves muscle function in mdx mice.
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Affiliation(s)
- Irina Kramerova
- Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles
| | - Chino Kumagai-Cresse
- Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine
| | - Natalia Ermolova
- Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles
| | - Ekaterina Mokhonova
- Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles
| | - Masha Marinov
- Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles
| | - Joana Capote
- Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles
- Molecular, Cellular and Integrative Physiology, University of California, Los Angeles
| | - Diana Becerra
- Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles
| | - Mattia Quattrocelli
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine
| | - Rachelle H Crosbie
- Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles
- Department of Integrative Biology and Physiology, University of California, Los Angeles
- Paul Wellstone Muscular Dystrophy Center
| | | | - Elizabeth M McNally
- Center for Genetic Medicine, Northwestern University Feinberg School of Medicine
- Paul Wellstone Muscular Dystrophy Center
| | - Melissa J Spencer
- Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles
- Paul Wellstone Muscular Dystrophy Center
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2
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Rodriguez M, Fernandez-Miranda I, Mondejar R, Capote J, Rodriguez-Pinilla S, Cereceda L, Alonso R, Cordoba R, Provencio M, Martin-Acosta P, Sanchez A, Pedrosa L, Gómez S, Piris-Villaespesa M, Garcia-Cosio M, Quero C, Llanos M, Barcena C, Fraga M, Camacho F, Castro Y, Garcia J, Mollejo M, Climent F, Mayordomo E, Bacalari E, Olmedilla G, Sánchez-Beato M, Piris M. DIFFUSE LARGE B-CELL LYMPHOMA SURVIVAL PROGNOSTICATION, A COMPARATIVE ANALYSIS OF CELL OF ORIGIN VS. MYC/BCL2 EXPRESSION. Hematol Oncol 2019. [DOI: 10.1002/hon.15_2631] [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: 11/09/2022]
Affiliation(s)
- M. Rodriguez
- Pathology; Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Instituto de Investigación Fundación Jiménez Díaz; Madrid Spain
| | - I. Fernandez-Miranda
- Medical Oncology; Instituto de Investigación Sanitaria Puerta de Hierro-Segovia de Arana; Madrid Spain
| | - R. Mondejar
- Haematology; Hospital Universitario Virgen del Rocío, Sevilla; Spain
| | - J. Capote
- Medical Oncology; Instituto de Investigación Fundación Jiménez Díaz; Madrid Spain
| | - S. Rodriguez-Pinilla
- Pathology; Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Instituto de Investigación Fundación Jiménez Díaz; Madrid Spain
| | - L. Cereceda
- Pathology; Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Instituto de Investigación Fundación Jiménez Díaz; Madrid Spain
| | - R. Alonso
- Pathology; Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Instituto de Investigación Fundación Jiménez Díaz; Madrid Spain
| | - R. Cordoba
- Haematology; Instituto de Investigación Fundación Jiménez Díaz; Madrid Spain
| | - M. Provencio
- Medical Oncology; Instituto de Investigación Sanitaria Puerta de Hierro-Segovia de Arana; Madrid Spain
| | - P. Martin-Acosta
- Pathology; Instituto Investigación Sanitaria Puerta de Hierro-Segovia de Arana; Madrid Spain
| | - A. Sanchez
- Medical Oncology; Instituto de Investigación Sanitaria Puerta de Hierro-Segovia de Arana; Madrid Spain
| | - L. Pedrosa
- Medical Oncology; Instituto de Investigación Sanitaria Puerta de Hierro-Segovia de Arana; Madrid Spain
| | - S. Gómez
- Medical Oncology; Instituto de Investigación Sanitaria Puerta de Hierro-Segovia de Arana; Madrid Spain
| | | | - M. Garcia-Cosio
- Haematology; Instituto de Investigación Hospital Ramón y Cajal; Madrid Spain
| | - C. Quero
- Medical Oncology; Hospital Universitario Virgen de la Victoria; Málaga Spain
| | - M. Llanos
- Medical Oncology; Hospital Universitario de Canarias; Santa Cruz de Tenerife Spain
| | - C. Barcena
- Pathology; Instituto de Investigación Hospital 12 de Octubre; Madrid Spain
| | - M. Fraga
- Pathology; Hospital Clínico Universitario de Santiago-CHUS, Santiago de Compostela; A Coruña Spain
| | - F. Camacho
- Pathology; Hospital Universitario de Getafe; Madrid Spain
| | - Y. Castro
- Pathology; Hospital Universitario Príncipe de Asturias; Madrid Spain
| | - J. Garcia
- Pathology; Hospital MD Anderson Cancer Center; Madrid Spain
| | - M. Mollejo
- Pathology; Hospital Virgen de la Salud; Toledo Spain
| | - F. Climent
- Pathology; Hospital Universitario de Bellvitge; Barcelona Spain
| | - E. Mayordomo
- Pathology; Hospital Universitario y Politécnico de La Fe; Valencia Spain
| | - E. Bacalari
- Pathology; Hospital Universitario La Paz; Madrid Spain
| | - G. Olmedilla
- Pathology; Hospital Universitario La Paz; Madrid Spain
| | - M. Sánchez-Beato
- Medical Oncology; Instituto de Investigación Sanitaria Puerta de Hierro-Segovia de Arana; Madrid Spain
| | - M. Piris
- Pathology; Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Instituto de Investigación Fundación Jiménez Díaz; Madrid Spain
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3
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Suárez-Trujillo A, Argüello A, Rivero MA, Capote J, Castro N. Short communication: Differences in distribution of serotonin receptor subtypes in the mammary gland of sheep, goats, and cows during lactation and involution. J Dairy Sci 2019; 102:2703-2707. [PMID: 30639027 DOI: 10.3168/jds.2018-15328] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Accepted: 11/12/2018] [Indexed: 11/19/2022]
Abstract
Serotonin receptors (5-HTR) are present in the mammary tissue of mouse, humans, cows, and rats. In these species, serotonin is important for the mammary gland function and lactation performance. The mammary gland expression of 5-HTR in small dairy ruminants has yet to be described. In the present study, primer sequences were developed to amplify 5-HTR (1A, 1D, 1E,1B, 1F, 2A, 2B, 2C, 3a, 4, 5a, 6, and 7) using real-time quantitative PCR for the detection of mRNA expression in mammary tissue of dairy sheep, goats, and cows. The distribution of commonly expressed 5-HTR between the 3 species (1B, 1E, 2A, 2B, 4, and 7) was analyzed in the mammary tissue of late-lactation and dried-off sheep, goats, and cows using immunohistochemical staining. Real-time quantitative PCR analysis showed that the 3 studied species expressed receptors 5-HTR1B, 1E, 2A, 2B, 4, and 7. Goats and sheep expressed 5-HTR1D and 5a; 5-HTR1A and 1F were expressed only in sheep. The mammary epithelial cells were positively stained for all the studied receptors by immunohistochemistry (5-HTR1B, 1E, 2A, 2B, 4, and 7). The endothelial cells of blood vessels were positively stained for 5-HTR1B, 2A, 2B, and 7 in all the species. Additionally, 5-HTR1E was present in cow endothelium. The myoepithelial cells stained positively for 5-HTR1E in all the species, and 5-HTR4 myoepithelial staining was present only in cows and sheep. Between the lactating and dried-off mammary glands, the location of 5-HTR in the epithelial cells changed from a cytoplasmic reaction in lactating udders to a reaction in the apical region in dry udders. These results showed that the distribution of 5-HTR subtypes in the mammary gland of dairy ruminants vary among species, tissue type, and stage of gland development. These findings warrant future studies aimed at understanding whether the differences in 5-HTR subtype expression and location accounts for the differences in milk secretion and lactocyte activity among cows, goats, and sheep.
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Affiliation(s)
- A Suárez-Trujillo
- Department of Animal Sciences, Purdue University, West Lafayette, IN 47907; Animal Production and Biotechnology Group, Institute of Animal Health and Food Security, Universidad de Las Palmas de Gran Canaria, Arucas 35413, Canary Islands, Spain
| | - A Argüello
- Animal Production and Biotechnology Group, Institute of Animal Health and Food Security, Universidad de Las Palmas de Gran Canaria, Arucas 35413, Canary Islands, Spain
| | - M A Rivero
- Division of Histology and Animal Pathology, Institute of Animal Health and Food Security, Universidad de Las Palmas de Gran Canaria, Arucas 35413, Canary Islands, Spain
| | - J Capote
- Instituto Canario de Investigaciones Agrarias, PO Box 60, La Laguna 38297, Canary Islands, Spain
| | - N Castro
- Animal Production and Biotechnology Group, Institute of Animal Health and Food Security, Universidad de Las Palmas de Gran Canaria, Arucas 35413, Canary Islands, Spain.
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Pulina G, Milán MJ, Lavín MP, Theodoridis A, Morin E, Capote J, Thomas DL, Francesconi AHD, Caja G. Invited review: Current production trends, farm structures, and economics of the dairy sheep and goat sectors. J Dairy Sci 2018; 101:6715-6729. [PMID: 29859690 DOI: 10.3168/jds.2017-14015] [Citation(s) in RCA: 173] [Impact Index Per Article: 28.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Accepted: 04/19/2018] [Indexed: 11/19/2022]
Abstract
Dairy small ruminants account for approximately 21% of all sheep and goats in the world, produce around 3.5% of the world's milk, and are mainly located in subtropical-temperate areas of Asia, Europe, and Africa. Dairy sheep are concentrated around the Mediterranean and Black Sea regions, where their dairy products are typical ingredients of the human diet. Dairy goats are concentrated in low-income, food-deficit countries of the Indian subcontinent, where their products are a key food source, but are also present in high-income, technologically developed countries. This review evaluates the status of the dairy sheep and goat sectors in the world, with special focus on the commercially and technically developed industries in France, Greece, Italy, and Spain (FGIS). Dairy small ruminants account for a minor part of the total agricultural output in France, Italy, and Spain (0.9 to 1.8%) and a larger part in Greece (8.8%). In FGIS, the dairy sheep industry is based on local breeds and crossbreeds raised under semi-intensive and intensive systems and is concentrated in a few regions in these countries. Average flock size varies from small to medium (140 to 333 ewes/farm), and milk yield from low to medium (85 to 216 L/ewe), showing substantial room for improvement. Most sheep milk is sold to industries and processed into traditional cheese types, many of which are Protected Denomination of Origin (PDO) cheeses for gourmet and export markets (e.g., Pecorino, Manchego, and Roquefort). By comparing break-even milk price among FGIS countries, we observed the following: (1) most Greek and French dairy sheep farms were unprofitable, with the exception of the intensive Chios farms of Greece; (2) milk price was aligned with cost of production in Italy; and (3) profitable farms coexisted with unprofitable farms in Spain. In FGIS, dairy goat production is based on local breeds raised under more extensive systems than sheep. Compared with sheep, average dairy goat herds are smaller (36 to 190 does/farm) but milk yield is greater (153 to 589 L/doe), showing room for improvement. Goat milk is mainly processed on-farm into dairy products for national markets, but some PDO goat milk cheeses (e.g., Murcia al Vino) are exported. Processed goat milk is sold for local human consumption or dehydrated for export. Mixed sheep-goat (e.g., Feta) and cow-sheep-goat milk cheeses are common in many countries. Strategies to improve the dairy sheep and goat sectors in these 4 countries are proposed and discussed.
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Affiliation(s)
- G Pulina
- Department of Agricultural Science, University of Sassari, Sassari 07100, Italy
| | - M J Milán
- Group of Research in Ruminants (G2R), Department of Animal and Food Sciences, Universitat Autònoma de Barcelona, Bellaterra 08193, Spain
| | - M P Lavín
- Instituto de Ganadería de Montaña, Consejo Superior de Investigaciones Científicas (CSIC), Grulleros 24346, León, Spain
| | - A Theodoridis
- Laboratory of Animal Production Economics, Faculty of Veterinary Medicine, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - E Morin
- Institut de l'Élevage, Castanet Tolosan 31321, France
| | - J Capote
- Canary Islands Institute of Agricultural Research (ICIA), La Laguna 38200, Tenerife, Spain
| | - D L Thomas
- Department of Animal Sciences, University of Wisconsin-Madison, Madison 53706
| | - A H D Francesconi
- Department of Agricultural Science, University of Sassari, Sassari 07100, Italy.
| | - G Caja
- Group of Research in Ruminants (G2R), Department of Animal and Food Sciences, Universitat Autònoma de Barcelona, Bellaterra 08193, Spain
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Amills M, Capote J, Tosser-Klopp G. Goat domestication and breeding: a jigsaw of historical, biological and molecular data with missing pieces. Anim Genet 2017; 48:631-644. [PMID: 28872195 DOI: 10.1111/age.12598] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [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: 07/14/2017] [Indexed: 12/23/2022]
Abstract
Domestic goats (Capra hircus) are spread across the five continents with a census of 1 billion individuals. The worldwide population of goats descends from a limited number of bezoars (Capra aegagrus) domesticated 10 000 YBP (years before the present) in the Fertile Crescent. The extraordinary adaptability and hardiness of goats favoured their rapid spread over the Old World, reaching the Iberian Peninsula and Southern Africa 7000 YBP and 2000 YBP respectively. Molecular studies have revealed one major mitochondrial haplogroup A and five less frequent haplogroups B, C, D, F and G. Moreover, the analysis of autosomal and Y-chromosome markers has evidenced an appreciable geographic differentiation. The implementation of new molecular technologies, such as whole-genome sequencing and genome-wide genotyping, allows for the exploration of caprine diversity at an unprecedented scale, thus providing new insights into the evolutionary history of goats. In spite of a number of pitfalls, the characterization of the functional elements of the goat genome is expected to play a key role in understanding the genetic determination of economically relevant traits. Genomic selection and genome editing also hold great potential, particularly for improving traits that cannot be modified easily by traditional selection.
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Affiliation(s)
- M Amills
- Department of Animal Genetics, Centre for Research in Agricultural Genomics (CRAG), CSIC-IRTA-UAB-UB, Campus Universitat Autònoma de Barcelona, Bellaterra, 08193, Spain
| | - J Capote
- Instituto Canario de Investigaciones Agrarias, La Laguna, 38108, Tenerife, Spain
| | - G Tosser-Klopp
- INRA-GenPhySE-Génétique, Physiologie et Systèmes d'Elevage-UMR1388, 24 Chemin de Borde Rouge-Auzeville CS 52627, 31326, Castanet Tolosan Cedex, France
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6
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Peter AK, Miller G, Capote J, DiFranco M, Solares-Pérez A, Wang EL, Heighway J, Coral-Vázquez RM, Vergara J, Crosbie-Watson RH. Nanospan, an alternatively spliced isoform of sarcospan, localizes to the sarcoplasmic reticulum in skeletal muscle and is absent in limb girdle muscular dystrophy 2F. Skelet Muscle 2017; 7:11. [PMID: 28587652 PMCID: PMC5461684 DOI: 10.1186/s13395-017-0127-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Accepted: 05/12/2017] [Indexed: 12/26/2022] Open
Abstract
Background Sarcospan (SSPN) is a transmembrane protein that interacts with the sarcoglycans (SGs) to form a tight subcomplex within the dystrophin-glycoprotein complex that spans the sarcolemma and interacts with laminin in the extracellular matrix. Overexpression of SSPN ameliorates Duchenne muscular dystrophy in murine models. Methods Standard cloning approaches were used to identify nanospan, and nanospan-specific polyclonal antibodies were generated and validated. Biochemical isolation of skeletal muscle membranes and two-photon laser scanning microscopy were used to analyze nanospan localization in muscle from multiple murine models. Duchenne muscular dystrophy biopsies were analyzed by immunoblot analysis of protein lysates as well as indirect immunofluorescence analysis of muscle cryosections. Results Nanospan is an alternatively spliced isoform of sarcospan. While SSPN has four transmembrane domains and is a core component of the sarcolemmal dystrophin-glycoprotein complex, nanospan is a type II transmembrane protein that does not associate with the dystrophin-glycoprotein complex. We demonstrate that nanospan is enriched in the sarcoplasmic reticulum (SR) fractions and is not present in the T-tubules. SR fractions contain membranes from three distinct structural regions: a region flanking the T-tubules (triadic SR), a SR region across the Z-line (ZSR), and a longitudinal SR region across the M-line (LSR). Analysis of isolated murine muscles reveals that nanospan is mostly associated with the ZSR and triadic SR, and only minimally with the LSR. Furthermore, nanospan is absent from the SR of δ-SG-null (Sgcd−/−) skeletal muscle, a murine model for limb girdle muscular dystrophy 2F. Analysis of skeletal muscle biopsies from Duchenne muscular dystrophy patients reveals that nanospan is preferentially expressed in type I (slow) fibers in both control and Duchenne samples. Furthermore, nanospan is significantly reduced in Duchenne biopsies. Conclusions Alternative splicing of proteins from the SG-SSPN complex produces δ-SG3, microspan, and nanospan that localize to the ZSR and the triadic SR, where they may play a role in regulating resting calcium levels as supported by previous studies (Estrada et al., Biochem Biophys Res Commun 340:865–71, 2006). Thus, alternative splicing of SSPN mRNA generates three protein isoforms (SSPN, microspan, and nanospan) that differ in the number of transmembrane domains affecting subcellular membrane association into distinct protein complexes. Electronic supplementary material The online version of this article (doi:10.1186/s13395-017-0127-9) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Angela K Peter
- Department of Integrative Biology and Physiology, University of California, Los Angeles, 610 Charles E. Young Drive East, Terasaki Life Sciences Building, Los Angeles, CA, 90095, USA.,Present Address: Biofrontiers Institute, Department of Molecular, Cellular and Developmental Biology, University of Colorado, Boulder, CO, USA
| | - Gaynor Miller
- Department of Integrative Biology and Physiology, University of California, Los Angeles, 610 Charles E. Young Drive East, Terasaki Life Sciences Building, Los Angeles, CA, 90095, USA.,Present Address: Department of Oncology and Metabolism, University of Sheffield, Sheffield, UK
| | - Joana Capote
- Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles, 610 Charles E. Young Drive East, Terasaki Life Sciences Building, Los Angeles, CA, 90095, USA.,Center for Duchenne Muscular Dystrophy, University of California, Los Angeles, Los Angeles, CA, USA
| | - Marino DiFranco
- Center for Duchenne Muscular Dystrophy, University of California, Los Angeles, Los Angeles, CA, USA.,Department of Physiology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
| | - Alhondra Solares-Pérez
- Sección de Estudios de Posgrado e Investigación, Escuela Superior de Medicina, Instituto Politécnico Nacional, Mexico City, Mexico
| | - Emily L Wang
- Department of Integrative Biology and Physiology, University of California, Los Angeles, 610 Charles E. Young Drive East, Terasaki Life Sciences Building, Los Angeles, CA, 90095, USA
| | - Jim Heighway
- Cancer Communications and Consultancy Ltd, Knutsford, Cheshire, UK
| | - Ramón M Coral-Vázquez
- Sección de Estudios de Posgrado e Investigación, Escuela Superior de Medicina, Instituto Politécnico Nacional, Mexico City, Mexico
| | - Julio Vergara
- Center for Duchenne Muscular Dystrophy, University of California, Los Angeles, Los Angeles, CA, USA.,Department of Physiology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
| | - Rachelle H Crosbie-Watson
- Department of Integrative Biology and Physiology, University of California, Los Angeles, 610 Charles E. Young Drive East, Terasaki Life Sciences Building, Los Angeles, CA, 90095, USA. .,Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles, 610 Charles E. Young Drive East, Terasaki Life Sciences Building, Los Angeles, CA, 90095, USA. .,Center for Duchenne Muscular Dystrophy, University of California, Los Angeles, Los Angeles, CA, USA. .,Molecular Biology Institute, University of California, Los Angeles, Los Angeles, CA, USA.
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Almeida AM, Hernandez-Castellano LE, Ferreira AM, Nanni P, Grossmann J, Argüello A, Capote J, Cai G, Lippolis JD, Castro N. 0862 The goat (Capra hircus) mammary gland secretory tissue proteome as influenced by weight loss: A study using label-free proteomics. J Anim Sci 2016. [DOI: 10.2527/jam2016-0862] [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: 11/13/2022] Open
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8
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Camacho A, Torres A, Capote J, Mata J, Viera J, Bermejo LA, Argüello A. Meat quality of lambs (hair and wool) slaughtered at different live weights. Journal of Applied Animal Research 2016. [DOI: 10.1080/09712119.2016.1205498] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- A. Camacho
- Department of Engineering, Group of Animal Production and Rural Development, Production and Agricultural Economy, La Laguna University, La Laguna, Spain
| | | | | | - J. Mata
- Department of Engineering, Group of Animal Production and Rural Development, Production and Agricultural Economy, La Laguna University, La Laguna, Spain
| | - J. Viera
- Department of Engineering, Agricultural Economy, Sociology and Policy Unit, Production and Agricultural Economy, La Laguna University, La Laguna, Spain
| | - L. A. Bermejo
- Department of Engineering, Group of Animal Production and Rural Development, Production and Agricultural Economy, La Laguna University, La Laguna, Spain
- Department of Engineering, Agricultural Economy, Sociology and Policy Unit, Production and Agricultural Economy, La Laguna University, La Laguna, Spain
| | - A. Argüello
- Animal Production Unit, Las Palmas de Gran Canaria University, Arucas, Spain
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9
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Capote J, Kramerova I, Martinez L, Vetrone S, Barton ER, Sweeney HL, Miceli MC, Spencer MJ. Osteopontin ablation ameliorates muscular dystrophy by shifting macrophages to a pro-regenerative phenotype. J Exp Med 2016. [DOI: 10.1084/jem.2135oia35] [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: 11/04/2022] Open
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10
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Capote J, Kramerova I, Martinez L, Vetrone S, Barton ER, Sweeney HL, Miceli MC, Spencer MJ. Osteopontin ablation ameliorates muscular dystrophy by shifting macrophages to a pro-regenerative phenotype. J Cell Biol 2016; 213:275-88. [PMID: 27091452 PMCID: PMC5084275 DOI: 10.1083/jcb.201510086] [Citation(s) in RCA: 89] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Accepted: 03/15/2016] [Indexed: 11/22/2022] Open
Abstract
In the degenerative disease Duchenne muscular dystrophy, inflammatory cells enter muscles in response to repetitive muscle damage. Immune factors are required for muscle regeneration, but chronic inflammation creates a profibrotic milieu that exacerbates disease progression. Osteopontin (OPN) is an immunomodulator highly expressed in dystrophic muscles. Ablation of OPN correlates with reduced fibrosis and improved muscle strength as well as reduced natural killer T (NKT) cell counts. Here, we demonstrate that the improved dystrophic phenotype observed with OPN ablation does not result from reductions in NKT cells. OPN ablation skews macrophage polarization toward a pro-regenerative phenotype by reducing M1 and M2a and increasing M2c subsets. These changes are associated with increased expression of pro-regenerative factors insulin-like growth factor 1, leukemia inhibitory factor, and urokinase-type plasminogen activator. Furthermore, altered macrophage polarization correlated with increases in muscle weight and muscle fiber diameter, resulting in long-term improvements in muscle strength and function in mdx mice. These findings suggest that OPN ablation promotes muscle repair via macrophage secretion of pro-myogenic growth factors.
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Affiliation(s)
- Joana Capote
- Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095 Molecular, Cellular, and Integrative Physiology Interdepartmental PhD Program, University of California, Los Angeles, Los Angeles, CA 90095
| | - Irina Kramerova
- Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095
| | - Leonel Martinez
- Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095
| | - Sylvia Vetrone
- Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095
| | - Elisabeth R Barton
- Department of Applied Physiology and Kinesiology, University of Florida, Gainesville, FL 32611 Wellstone Muscular Dystrophy Center, University of Florida, Gainesville, FL 32610
| | - H Lee Sweeney
- Department of Pharmacology and Therapeutics, University of Florida, Gainesville, FL 32610 Wellstone Muscular Dystrophy Center, University of Florida, Gainesville, FL 32610
| | - M Carrie Miceli
- Department of Microbiology, Immunology, and Molecular Genetics, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095 Center for Duchenne Muscular Dystrophy at UCLA, Los Angeles, CA 90095 Wellstone Muscular Dystrophy Center, University of Florida, Gainesville, FL 32610
| | - Melissa J Spencer
- Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095 Center for Duchenne Muscular Dystrophy at UCLA, Los Angeles, CA 90095 Wellstone Muscular Dystrophy Center, University of Florida, Gainesville, FL 32610
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Ferrando A, Manunza A, Jordana J, Capote J, Pons A, Pais J, Delgado T, Atoche P, Cabrera B, Martínez A, Landi V, Delgado JV, Argüello A, Vidal O, Lalueza-Fox C, Ramírez O, Amills M. A mitochondrial analysis reveals distinct founder effect signatures in Canarian and Balearic goats. Anim Genet 2015; 46:452-6. [DOI: 10.1111/age.12302] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/25/2015] [Indexed: 11/28/2022]
Affiliation(s)
- A. Ferrando
- Departament de Ciència Animal i dels Aliments; Universitat Autònoma de Barcelona; Bellaterra 08193 Spain
| | - A. Manunza
- Department of Animal Genetics; Center for Research in Agricultural Genomics (CSIC-IRTA-UAB-UB); Campus Universitat Autònoma de Barcelona; Bellaterra 08193 Spain
| | - J. Jordana
- Departament de Ciència Animal i dels Aliments; Universitat Autònoma de Barcelona; Bellaterra 08193 Spain
| | - J. Capote
- Instituto Canario de Investigaciones Agrarias; La Laguna 38108 Tenerife Spain
| | - A. Pons
- Àrea Tècnica Agrària; Servei de Millora Agrària i Pesquera (SEMILLA); Son Ferriol 07198 Spain
| | - J. Pais
- Museo Arqueológico Benahorita; Camino de Las Adelfas; 38760 Los Llanos de Aridane La Palma Spain
| | - T. Delgado
- Museo Canario; Doctor Verneau; 2, 35001 Las Palmas de Gran Canaria Spain
| | - P. Atoche
- Departamento de Ciencias Históricas; Universidad de Las Palmas de Gran Canaria; 35001 Las Palmas de Gran Canaria
| | - B. Cabrera
- Department of Animal Genetics; Center for Research in Agricultural Genomics (CSIC-IRTA-UAB-UB); Campus Universitat Autònoma de Barcelona; Bellaterra 08193 Spain
| | - A. Martínez
- Departamento de Genética; Universidad de Córdoba; Córdoba 14071 Spain
| | - V. Landi
- Departamento de Genética; Universidad de Córdoba; Córdoba 14071 Spain
| | - J. V. Delgado
- Departamento de Genética; Universidad de Córdoba; Córdoba 14071 Spain
| | - A. Argüello
- Department of Animal Science; Universidad de Las Palmas de Gran Canaria; Arucas 35413 Spain
| | - O. Vidal
- Departament de Biologia; Universitat de Girona; Girona 17071 Spain
| | - C. Lalueza-Fox
- Institut de Biologia Evolutiva (CSIC - Universitat Pompeu Fabra); Barcelona 08003 Spain
| | - O. Ramírez
- Institut de Biologia Evolutiva (CSIC - Universitat Pompeu Fabra); Barcelona 08003 Spain
| | - M. Amills
- Departament de Ciència Animal i dels Aliments; Universitat Autònoma de Barcelona; Bellaterra 08193 Spain
- Department of Animal Genetics; Center for Research in Agricultural Genomics (CSIC-IRTA-UAB-UB); Campus Universitat Autònoma de Barcelona; Bellaterra 08193 Spain
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Camacho A, Capote J, Mata J, Argüello A, Viera J, Bermejo L. Effect of breed (hair and wool), weight and sex on carcass quality of light lambs under intensive management. Journal of Applied Animal Research 2015. [DOI: 10.1080/09712119.2014.987288] [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] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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13
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Hernández-Castellano L, Morales-delaNuez A, Sánchez-Macías D, Moreno-Indias I, Torres A, Capote J, Argüello A, Castro N. The effect of colostrum source (goat vs. sheep) and timing of the first colostrum feeding (2 h vs. 14 h after birth) on body weight and immune status of artificially reared newborn lambs. J Dairy Sci 2015; 98:204-10. [DOI: 10.3168/jds.2014-8350] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2014] [Accepted: 09/17/2014] [Indexed: 01/26/2023]
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Badaoui B, Manunza A, Castelló A, D'Andrea M, Pilla F, Capote J, Jordana J, Ferrando A, Martínez A, Cabrera B, Delgado JV, Landi V, Gómez M, Pons A, El Ouni M, Vidal O, Amills M. Technical note: Advantages and limitations of authenticating Palmera goat dairy products by pyrosequencing the melanocortin 1 receptor (MC1R) gene. J Dairy Sci 2014; 97:7293-7. [PMID: 25200789 DOI: 10.3168/jds.2014-8316] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2014] [Accepted: 07/23/2014] [Indexed: 11/19/2022]
Abstract
Inferring the breed of origin of dairy products can be achieved through molecular analysis of genetic markers with a population-specific pattern of segregation. The goal of the current work was to generate such markers in goats by resequencing several pigmentation genes [melanocortin 1 receptor (MC1R), v-kit Hardy-Zuckerman 4 feline sarcoma viral oncogene homolog (KIT), tyrosinase (TYR), and tyrosinase-related protein 2 (TYRP2)]. This experiment revealed 10 single nucleotide polymorphisms (SNP), including 5 missense mutations and 1 nonsense mutation. These markers were genotyped in 560 goats from 18 breeds originally from Italy, the Iberian Peninsula, the Canary Islands, and North Africa. Although the majority of SNP segregated at moderate frequencies in all populations (including 2 additional markers that were used as a source of information), we identified a c.764G>A SNP in MC1R that displayed highly divergent allelic frequencies in the Palmera breed compared with the Majorera and Tinerfeña breeds from the Canary Islands. Thus, we optimized a pyrosequencing-based technique that allowed us to estimate, very accurately, the allele frequencies of this marker in complex DNA mixtures from different individuals. Once validated, we applied this method to generating breed-specific DNA profiles that made it possible to detect fraudulent cheeses in which Palmero cheese was manufactured with milk from Majorera goats. One limitation of this approach, however, is that it cannot be used to detect illegal manufacturing where Palmero dairy products are produced by mixing milk from Palmera and Majorera goats, because the c.764G>A SNP segregates in both breeds.
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Affiliation(s)
- B Badaoui
- Department of Animal Genetics, Center for Research in Agricultural Genomics (CSIC-IRTA-UAB-UB), Campus Universitat Autònoma de Barcelona, Bellaterra 08193, Spain
| | - A Manunza
- Department of Animal Genetics, Center for Research in Agricultural Genomics (CSIC-IRTA-UAB-UB), Campus Universitat Autònoma de Barcelona, Bellaterra 08193, Spain
| | - A Castelló
- Department of Animal Genetics, Center for Research in Agricultural Genomics (CSIC-IRTA-UAB-UB), Campus Universitat Autònoma de Barcelona, Bellaterra 08193, Spain; Departament de Ciència Animal i dels Aliments, Universitat Autònoma de Barcelona, Bellaterra 08193, Spain
| | - M D'Andrea
- Department of Agricultural, Environmental and Food Sciences, University of Molise, Via de Sanctis, 86100 Campobasso, Italy
| | - F Pilla
- Department of Agricultural, Environmental and Food Sciences, University of Molise, Via de Sanctis, 86100 Campobasso, Italy
| | - J Capote
- Instituto Canario de Investigaciones Agrarias, La Laguna 38108, Tenerife, Spain
| | - J Jordana
- Departament de Ciència Animal i dels Aliments, Universitat Autònoma de Barcelona, Bellaterra 08193, Spain
| | - A Ferrando
- Departament de Ciència Animal i dels Aliments, Universitat Autònoma de Barcelona, Bellaterra 08193, Spain
| | - A Martínez
- Departamento de Genética, Universidad de Córdoba, Córdoba 14071, Spain
| | - B Cabrera
- Department of Animal Genetics, Center for Research in Agricultural Genomics (CSIC-IRTA-UAB-UB), Campus Universitat Autònoma de Barcelona, Bellaterra 08193, Spain; Departament de Ciència Animal i dels Aliments, Universitat Autònoma de Barcelona, Bellaterra 08193, Spain
| | - J V Delgado
- Departamento de Genética, Universidad de Córdoba, Córdoba 14071, Spain
| | - V Landi
- Departamento de Genética, Universidad de Córdoba, Córdoba 14071, Spain
| | - M Gómez
- Servicio de Ganadería, Diputación Foral de Bizkaia, 48014 Bilbao, Spain
| | - A Pons
- Unitat de Races Autòctones, Servei de Millora Agrària, (SEMILLA-SAU), Son Ferriol 07198, Spain
| | - M El Ouni
- Livestock & Wildlife Laboratory, Arid Land Institute Medenine, 4119 Médenine, Tunisia
| | - O Vidal
- Departament de Biologia, Universitat de Girona, Girona 17071, Spain
| | - M Amills
- Department of Animal Genetics, Center for Research in Agricultural Genomics (CSIC-IRTA-UAB-UB), Campus Universitat Autònoma de Barcelona, Bellaterra 08193, Spain; Departament de Ciència Animal i dels Aliments, Universitat Autònoma de Barcelona, Bellaterra 08193, Spain.
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Caja G, Carné S, Salama A, Ait-Saidi A, Rojas-Olivares M, Rovai M, Capote J, Castro N, Argüello A, Ayadi M, Aljumaah R, Alshaikh M. State-of-the-art of electronic identification techniques and applications in goats. Small Rumin Res 2014. [DOI: 10.1016/j.smallrumres.2014.05.012] [Citation(s) in RCA: 11] [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] [Indexed: 11/16/2022]
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Torres A, Capote J, Argüello A, Sánchez-Macías D, Morales-delaNuez A, Castro N. Effects of oxytocin treatments on milk ejection in dairy goats traditionally milked once a day. Small Rumin Res 2014. [DOI: 10.1016/j.smallrumres.2014.05.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Morales-de la Nuez A, Moreno-Indias I, Sánchez-Macías D, Hérnandez-Castellano L, Suarez-Trujillo A, Assunção P, Argüello A, Castro N, Capote J. Effects ofCrypthecodinium cohnii,Chlorelaspp. andIsochrysis galbanaaddition to milk replacer on goat kids and lambs growth. Journal of Applied Animal Research 2013. [DOI: 10.1080/09712119.2013.827579] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Hernández-Castellano L, Morales-delaNuez A, Moreno-Indias I, Torres A, Sánchez-Macías D, Capote J, Castro N, Argüello A. Carcass and meat quality determination as a tool to promote local meat consumption in outermost regions of Europe. Journal of Applied Animal Research 2013. [DOI: 10.1080/09712119.2012.742849] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Torres A, Castro N, Argüello A, Capote J. Comparison between two milk distribution structures in dairy goats milked at different milking frequencies. Small Rumin Res 2013. [DOI: 10.1016/j.smallrumres.2013.04.013] [Citation(s) in RCA: 12] [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] [Indexed: 11/29/2022]
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delaNuez AM, Moreno-Indias I, Sánchez-Macías D, Capote J, Juste M, Castro N, Hernández-Castellano L, Argüello A. Erratum to “Sodium dodecyl sulfate reduces bacterial contamination in goat colostrum without negative effects on immune passive transfer or the health of goat kids” (J. Dairy Sci. 94:410–415). J Dairy Sci 2013. [DOI: 10.3168/jds.2013-96-8-5403] [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: 11/19/2022]
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Hernández-Castellano L, Morales-delaNuez A, Moreno-Indias I, Torres A, Sánchez-Macías D, Martell-Jaizme D, Capote J, Castro N, Argüello A. Sensory analysis as a tool to compare imported and local meat in outermost regions of Europe. Journal of Applied Animal Research 2013. [DOI: 10.1080/09712119.2012.739094] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Torres A, Castro N, Hernández-Castellano L, Argüello A, Capote J. Short communication: Effects of milking frequency on udder morphology, milk partitioning, and milk quality in 3 dairy goat breeds. J Dairy Sci 2013; 96:1071-4. [DOI: 10.3168/jds.2012-5435] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2012] [Accepted: 10/26/2012] [Indexed: 11/19/2022]
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Moreno-Indias I, Morales-delaNuez A, Hernández-Castellano LE, Sánchez-Macías D, Capote J, Castro N, Argüello A. Docosahexaenoic acid in the goat kid diet: Effects on immune system and meat quality1. J Anim Sci 2012; 90:3729-38. [DOI: 10.2527/jas.2011-4351] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
| | | | | | | | - J. Capote
- Instituto Canario de Investigaciones Agrarias, P.O. Box 60, La Laguna, Spain
| | - N. Castro
- Universidad de las Palmas de Gran Canaria, 34513, Arucas, Spain
| | - A. Argüello
- Universidad de las Palmas de Gran Canaria, 34513, Arucas, Spain
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Álvarez I, Capote J, Traoré A, Fonseca N, Pérez K, Cuervo M, Fernández I, Goyache F. Mitochondrial analysis sheds light on the origin of hair sheep. Anim Genet 2012; 44:344-7. [PMID: 23020288 DOI: 10.1111/j.1365-2052.2012.02398.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/10/2012] [Indexed: 12/01/2022]
Abstract
A total of 180 mtDNA sequences from hair Caribbean (93), West African (73) and Canarian-wooled (14) sheep were analysed to shed light on the origin of hair sheep. A comparison of 360 Iberian sheep sequences retrieved from GenBank was performed to assess a possible European origin of the Caribbean hair sheep. These 180 sequences gave 48 different haplotypes (16 in Caribbean sheep). All Caribbean and Canarian-wooled sequences and 91.8% of the West African samples belonged to haplogroup B. The sheep analysed showed wide haplotypic identity. Caribbean sheep shared roughly two-thirds of their samples with Canarian-wooled and West African samples, respectively. Principal component analysis showed that the Caribbean and the Canarian-wooled sheep clustered together. Additional analyses showed that hair and Iberian sheep had wide genetic identity. It was not possible to ascertain a single Canarian, African or European origin of the Caribbean hair sheep using mtDNA markers only. European, African and Caribbean hair sheep maternal genetic backgrounds likely result from related domestication events.
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Affiliation(s)
- I Álvarez
- Área de Genética y Reproducción Animal, SERIDA-Deva, Camino de Rioseco 1225, E-33394, Gijón, Spain
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Morales-delaNuez A, Rodríguez C, Santana M, Hernandez-Castellano L, Niño T, Reyes-Chacon R, Moreno-Indias I, Castro N, Capote J. Morphological measurements and indexes as a tool to support molecular genetic studies: an example in Canary Islands. Journal of Applied Animal Research 2012. [DOI: 10.1080/09712119.2012.658062] [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] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Martínez A, Ferrando A, Manunza A, Gómez M, Landi V, Jordana J, Capote J, Badaoui B, Vidal O, Delgado J, Amills M. Inferring the demographic history of a highly endangered goat breed through the analysis of nuclear and mitochondrial genetic signatures. Small Rumin Res 2012. [DOI: 10.1016/j.smallrumres.2011.11.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Moreno-Indias I, Sánchez-Macías D, Castro N, Morales-delaNuez A, Hernández-Castellano L, Capote J, Argüello A. Chemical composition and immune status of dairy goat colostrum fractions during the first 10h after partum. Small Rumin Res 2012. [DOI: 10.1016/j.smallrumres.2011.09.015] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [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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Argüello A, Castro N, Capote J. Growth of Milk Replacer Kids Fed Under Three Different Managements. Journal of Applied Animal Research 2011. [DOI: 10.1080/09712119.2004.9706470] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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Argüello A, Fabelo F, Capote J, Ginés R, Afonso JM, López JL. Carcass Composition of Canary Caprine Group at Adult Age. Journal of Applied Animal Research 2011. [DOI: 10.1080/09712119.1999.9706234] [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] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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Moreno-Indias I, Hernández-Castellano L, Morales-delanuez A, Castro N, Capote J, Mendoza-Grimón V, Rivero M, Argüello A. Differences on meat quality of local cattle breed from outermost EU zone vs. commercial. Journal of Applied Animal Research 2011. [DOI: 10.1080/09712119.2011.624973] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- I Moreno-Indias
- a Department of Animal Science , Universidad de Las Palmas de Gran Canaria , Arucas, Spain
| | | | - A Morales-delanuez
- a Department of Animal Science , Universidad de Las Palmas de Gran Canaria , Arucas, Spain
| | - N Castro
- a Department of Animal Science , Universidad de Las Palmas de Gran Canaria , Arucas, Spain
| | - J Capote
- b Department of Animal Science , Instituto Canario de Investigaciones Agrarias , La Laguna, Spain
| | - V Mendoza-Grimón
- a Department of Animal Science , Universidad de Las Palmas de Gran Canaria , Arucas, Spain
| | - M.A Rivero
- a Department of Animal Science , Universidad de Las Palmas de Gran Canaria , Arucas, Spain
| | - A Argüello
- a Department of Animal Science , Universidad de Las Palmas de Gran Canaria , Arucas, Spain
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Morales-delanuez A, Falcón A, Castro N, Briggs H, Hernández-Castellano L, Capote J, Argüello A. The effects of modified atmosphere packaging on goat kid meat quality. Journal of Applied Animal Research 2011. [DOI: 10.1080/09712119.2011.621533] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- A.J. Morales-delanuez
- a Animal Production Unit , Universidad de Las Palmas de Gran Canaria , Gran Canaria, Spain
| | - A. Falcón
- b Las Palmas de Gran Canaria , Jucarne, S.A. 35012, Gran Canaria, Spain
| | - N. Castro
- a Animal Production Unit , Universidad de Las Palmas de Gran Canaria , Gran Canaria, Spain
| | - H. Briggs
- a Animal Production Unit , Universidad de Las Palmas de Gran Canaria , Gran Canaria, Spain
| | | | - J. Capote
- c Instituto Canario de Investigaciones Agrarias , La Laguna, Tenerife, Spain
| | - A. Argüello
- a Animal Production Unit , Universidad de Las Palmas de Gran Canaria , Gran Canaria, Spain
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Martínez A, Landi V, Amills M, Capote J, Gómez M, Jordana J, Ferrando A, Manunza A, Martín D, Pons A, Vidal O, Delgado J. Biodiversidad caprina en España. Arch zootec 2011. [DOI: 10.4321/s0004-05922011000300030] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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Castro N, Capote J, Bruckmaier R, Argüello A. Management effects on colostrogenesis in small ruminants: a review. Journal of Applied Animal Research 2011. [DOI: 10.1080/09712119.2011.581625] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Hernández-Castellano L, Torres A, Alavoine A, Ruiz-Díaz M, Argüello A, Capote J, Castro N. Effect of milking frequency on milk immunoglobulin concentration (IgG, IgM and IgA) and chitotriosidase activity in Majorera goats. Small Rumin Res 2011. [DOI: 10.1016/j.smallrumres.2011.03.021] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Castro N, Capote J, Batista M, Bruckmaier RM, Argüello A. Effects of induced parturition in goats on immunoglobulin G and chitotriosidase activity in colostrum and plasma and on plasma concentrations of prolactin. Domest Anim Endocrinol 2011; 40:192-6. [PMID: 21288684 DOI: 10.1016/j.domaniend.2010.12.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2010] [Revised: 12/02/2010] [Accepted: 12/03/2010] [Indexed: 11/17/2022]
Abstract
The effect of induction of parturition with a PGF(2)α analog on plasma concentration of prolactin (PRL) and its effects on colostrum concentration of IgG and chitotriosidase (ChT) activity were studied in 16 pregnant Majorera goats. Treated goats, those in which parturition was induced, had greater concentrations of PRL than control goats 24 h before parturition (P < 0.05) and 48 h after parturition (P < 0.05). Control goats had greater concentrations of PRL than treated goats 96 h after parturition (P < 0.05). Plasma concentration of IgG did not differ between groups during the experimental period, but colostrum concentrations of IgG were greater in control goats than in treated goats at parturition (P < 0.05). Plasma ChT activity decreased during the period 72 h before parturition to 24 h after parturition in control and treated goats. Time evolution after partum affected the colostrum ChT activity, being greater at parturition than after parturition in both groups (P < 0.05). In summary, concentration of IgG in colostrum is slightly diminished if parturition is induced. Induction of parturition causes an early increase in PRL, which is most likely responsible for preterm suppression of IgG transport into mammary secretions.
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Affiliation(s)
- N Castro
- Department of Animal Science, Universidad de Las Palmas de Gran Canaria, Transmontaña s/n, Arucas, Spain
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Morales-delaNuez A, Moreno-Indias I, Sánchez-Macías D, Capote J, Juste M, Castro N, Hernández-Castellano L, Argüello A. Sodium dodecyl sulfate reduces bacterial contamination in goat colostrum without negative effects on immune passive transfer in goat kids. J Dairy Sci 2011; 94:410-5. [DOI: 10.3168/jds.2010-3624] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2010] [Accepted: 08/15/2010] [Indexed: 11/19/2022]
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Castro N, Martín D, Castro-Alonso A, Argüello A, Capote J, Caja G. Suitability of electronic mini-boluses for the early identification of goat kids and effects on growth performance and development of the reticulorumen. J Anim Sci 2010; 88:3464-9. [PMID: 20525934 DOI: 10.2527/jas.2010-3070] [Citation(s) in RCA: 4] [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] [Indexed: 11/13/2022] Open
Abstract
A total of 60 twin-goat kids (30 male and 30 female) of the Canary Island Majorera dairy breed were used in 2 experiments to evaluate 2 types of electronic identification mini-boluses and their effects on rearing performances and reticulorumen development. Electronic identification mini-boluses were cylindrical and made of ceramic materials (B1, 9.0 g and 38.5 × 9.5 mm; B2, 16.3 g and 42.2 × 12.2 mm), contained a 32-mm half-duplex passive transponder, and were administered to kids at different BW. In Exp. 1, treatments were 1) control, without bolus (n = 15) and 2) identified with B1 at 4.8 kg of BW (n = 15). In Exp. 2, treatments were 1) control, without bolus (n = 15) and 2) identified with B2 at 5.6 kg of BW (n = 15). Kids were penned separately, according to mini-bolus treatments, fed a milk replacer daily, and slaughtered at 10 kg of BW. Milk replacer intake was recorded individually twice weekly and boluses read weekly until slaughter. The full and empty stomach complex was measured immediately after slaughter, and mini-bolus location was recorded. Samples of the reticulum and rumen wall were taken to measure the number and length of the papillae and crest. Despite the light BW of kids at time of mini-bolus treatment, no negative effects (P > 0.05) of B1 and B2 mini-boluses were observed on milk intake, growth rate, or G:F in either experiment. No kid mortality or mini-bolus losses were observed during either experiment. All mini-boluses were retained until slaughter, and all were found in the rumen upon dissection, except one B2, which was found in the reticulum. Mini-bolus treatment did not affect (P > 0.05) the weight of full and empty reticulorumen or the number of papillae and crest size of the reticulum epithelium. Moreover, the B1-treated kids showed a greater number of papillae in the rumen wall than the control kids (22.4 +/- 1.0 vs. 18.9 +/- 0.9 papillae/cm, respectively; P < 0.05) in Exp. 1. In conclusion, the use of mini-boluses was suitable for the electronic identification of growing kids from early ages (wk 2 to 5 of age and 5 to 6 kg of BW) and did not produce negative effects on their growth performances or on reticulorumen development. These results support the use of properly designed boluses as a unique identification device for the entire lifespan of goats.
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Affiliation(s)
- N Castro
- Department of Animal Science, Universidad de Las Palmas de Gran Canaria, Arucas, Spain
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Capote J, DiFranco M, Vergara JL. Excitation-contraction coupling alterations in mdx and utrophin/dystrophin double knockout mice: a comparative study. Am J Physiol Cell Physiol 2010; 298:C1077-86. [PMID: 20130206 DOI: 10.1152/ajpcell.00428.2009] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The double knockout mouse for utrophin and dystrophin (utr(-/-)/mdx) has been proposed to be a better model of Duchenne Muscular Dystrophy (DMD) than the mdx mouse because the former displays more similar muscle pathology to that of the DMD patients. In this paper the properties of action potentials (APs) and Ca(2+) transients elicited by single and repetitive stimulation were studied to understand the excitation-contraction (EC) coupling alterations observed in muscle fibers from mdx and utr(-/-)/mdx mice. Based on the comparison of the AP durations with those of fibers from wild-type (WT) mice, fibers from both mdx and utr(-/-)/mdx mice could be divided in two groups: fibers with WT-like APs (group 1) and fibers with significantly longer APs (group 2). Although the proportion of fibers in group 2 was larger in utr(-/-)/mdx (36%) than in mdx mice (27%), the Ca(2+) release elicited by single stimulation was found to be similarly depressed (32-38%) in utr(-/-)/mdx and mdx fibers compared with WT counterparts regardless of the fiber's group. Stimulation at 100 Hz revealed that, with the exception of those from utr(-/-)/mdx mice, group 1 fibers were able to sustain Ca(2+) release for longer than group 2 fibers, which displayed an abrupt limitation even at the onset of the train. The differences in behavior between fibers in groups 1 and 2 became almost unnoticeable at 50 Hz stimulation. In general, fibers from utr(-/-)/mdx mice seem to display more persistent alterations in the EC coupling than those observed in the mdx model.
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Affiliation(s)
- Joana Capote
- Dept. of Physiology, UCLA, Los Angeles, CA 90095-1751, USA
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Abstract
A growing interest in cell biology is to express transgenically modified forms of essential proteins (e.g. fluorescently tagged constructs and/or mutant variants) in order to investigate their endogenous distribution and functional relevance. An interesting approach that has been implemented to fulfill this objective in fully differentiated cells is the in vivo transfection of plasmids by various methods into specific tissues such as liver, skeletal muscle, and even the brain. We present here a detailed description of the steps that must be followed in order to efficiently transfect genetic material into fibers of the flexor digitorum brevis (FDB) and interosseus (IO) muscles of adult mice using an in vivo electroporation approach. The experimental parameters have been optimized so as to maximize the number of muscle fibers transfected while minimizing tissue damages that may impair the quality and quantity of the proteins expressed in individual fibers. We have verified that the implementation of the methodology described in this paper results in a high yield of soluble proteins, i.e. EGFP and ECFP, calpain, FKBP12, beta2a-DHPR, etc. ; structural proteins, i.e. minidystrophin and alpha-actinin; and membrane proteins, i.e. alpha1s-DHPR, RyR1, cardiac Na/Ca(2+) exchanger , NaV1.4 Na channel, SERCA1, etc., when applied to FDB, IO and other muscles of mice and rats. The efficient expression of some of these proteins has been verified with biochemical and functional evidence. However, by far the most common confirmatory approach used by us are standard fluorescent microscopy and 2-photon laser scanning microscopy (TPLSM), which permit to identify not only the overall expression, but also the detailed intracellular localization, of fluorescently tagged protein constructs. The method could be equally used to transfect plasmids encoding for the expression of proteins of physiological relevance (as shown here), or for interference RNA (siRNA) aiming to suppress the expression of normally expressed proteins (not tested by us yet). It should be noted that the transfection of FDB and IO muscle fibers is particularly relevant for the investigation of mammalian muscle physiology since fibers enzymatically dissociated from these muscles are currently one of the most suitable models to investigate basic mechanisms of excitability and excitation-contraction coupling under current or voltage clamp conditions.
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Affiliation(s)
- Marino DiFranco
- Department of Physiology, David Geffen School of Medicine, University of California, Los Angeles, USA
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Moreno-Indias I, Castro N, Morales-delaNuez A, Sánchez-Macías D, Assunção P, Capote J, Argüello A. Farm and factory production of goat cheese whey results in distinct chemical composition. J Dairy Sci 2009; 92:4792-6. [DOI: 10.3168/jds.2009-2215] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Amills M, Ramírez O, Tomàs A, Badaoui B, Marmi J, Acosta J, Sànchez A, Capote J. Mitochondrial DNA diversity and origins of South and Central American goats. Anim Genet 2009; 40:315-22. [DOI: 10.1111/j.1365-2052.2008.01837.x] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Rodríguez C, Castro N, Capote J, Morales-Delanuez A, Moreno-Indias I, Sánchez-Macías D, Argüello A. Effect of colostrum immunoglobulin concentration on immunity in Majorera goat kids. J Dairy Sci 2009; 92:1696-701. [PMID: 19307651 DOI: 10.3168/jds.2008-1586] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The aim of the research was to evaluate the effects of immunoglobulin G (IgG) colostrum concentration on goat kid immune status when the total amount of IgG fed was constant. Majorera goat kids (n = 56) were randomly assigned to 1 of 4 groups, and kids received 4 g of IgG per kg of body weight of atomized colostrum at 4 different IgG concentrations: 20 (AC-20), 40 (AC-40), 60 (AC-60), and 80 (AC-80) mg/mL. Blood samples were obtained on d 0, 1, 2, 3, 4, and 5 postpartum. Immunoglobulin G, IgA, and IgM plasma concentrations, apparent efficiency of absorption of IgG, plasma chitotriosidase activity, plasma complement activity, and plasma proteinogram were measured. Plasma IgG and IgM concentrations were highest on d 1 in AC-80 animals, and IgA plasma concentration was lower in AC-20 than in AC-80. The apparent efficiency of absorption was higher in AC-80 (24.4%) than in the other treatment groups (by an average of 13.8%). Chitotriosidase plasma activity on d 5 (1,488 nmol/mL per hour) was higher than on d 0 and 1 (average of 1,183 nmol/mL per hour). There were no effects of colostrum IgG concentration on complement activity and plasma protein distribution, but gamma-globulin and alpha-globulin were lower on d 0 than on d 1, 2, 3, 4, and 5. Increasing the immunoglobulin concentration in colostrum using atomized colostrum improves the immunoglobulin absorption at the same amount of immunoglobulin fed.
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Affiliation(s)
- C Rodríguez
- Department of Animal Science, Las Palmas de Gran Canaria University, Arucas 35413, Spain
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Castro N, Capote J, Morales-Delanuez A, Rodríguez C, Argüello A. Effects of newborn characteristics and length of colostrum feeding period on passive immune transfer in goat kids. J Dairy Sci 2009; 92:1616-9. [PMID: 19307643 DOI: 10.3168/jds.2008-1397] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Majorera goat kids (n = 200) were used to evaluate the effects of litter size, birth body weight, sex, and suckling duration on serum IgG concentrations. Kids were assigned to 1 of 3 experimental groups: litter size and sex were equally distributed in each group. In the first group, kids (n = 67) stayed with their dams for 24 h; in the second group, kids (n = 66) stayed with their dams for 48 h; and in the third group, kids (n = 67) stayed with their dams for 120 h. Blood samples were obtained every 24 h for 5 d, and serum IgG concentration was measured using radial immunodiffusion. In litter sizes of 1 to 2 kids, IgG blood serum concentration was significantly higher (18.30 +/- 5.40 mg/mL) than in litters of 3 kids (9.85 +/- 4.23 mg/mL). Kid sex did not affect IgG blood serum concentrations. Suckling duration did not affect kid serum IgG concentrations. In conclusion, kids with low birth body weight (<2.8 kg) or from litters of 3 may need special attention. If newborn goat kids are allowed to suckle colostrum for at least 24 h from their dams, this seems to be sufficient time to ingest enough IgG from colostrum to achieve an adequate serum IgG concentration and passive immune protection to avoid failure of passive immune transfer.
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Affiliation(s)
- N Castro
- Department of Animal Science, Las Palmas de Gran Canaria University, Arucas 35413, Spain
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Morales-delaNuez A, Moreno-Indias I, Falcón A, Argüello A, Sánchez-Macias D, Capote J, Castro N. Effects of Various Packaging Systems on the Quality Characteristic of Goat Meat. Asian Australas J Anim Sci 2009. [DOI: 10.5713/ajas.2009.80488] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Castro N, Acosta F, Niño T, Vivas J, Quesada E, Capote J, Argüello A. The effects of diet and age on serum complement system activity in goat kids. Livest Sci 2008. [DOI: 10.1016/j.livsci.2008.03.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Castro N, Capote J, Morales L, Quesada E, Briggs H, Argüello A. Short communication: Addition of milk replacer to colostrum whey: effect on immunoglobulin G passive transfer in Majorera kids. J Dairy Sci 2008; 90:2347-9. [PMID: 17430937 DOI: 10.3168/jds.2006-624] [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] [Indexed: 11/19/2022]
Abstract
Forty-two Majorera kids (21 males and 21 females) were assigned to 3 groups, a colostrum group (C), a colostrum whey group (CW), and a colostrum whey plus milk replacer group (CWMR). All kids were fed twice on the first day and received 4 g of IgG/kg of body weight. No differences were found in serum IgG among the different treatments. Kid serum IgG concentrations on d 2 were 14.57, 17.25, and 13.32 mg/mL in the C, CW, and CWMR group, respectively. Labor time per animal was higher in the C and CW treatments than in the CWMR group (24.2 +/- 2.3, 20.9 +/- 3.4, and 16.1 +/- 1.5 min, respectively). This new management system may decrease labor costs during the colostrum feeding period.
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Affiliation(s)
- N Castro
- Department of Animal Science, Las Palmas de Gran Canaria University, Arucas 35416, Spain
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Castro-Alonso A, Castro N, Capote J, Morales-delaNuez A, Moreno-Indias I, Sánchez-Macias D, Herraez P, Argüello A. Short communication: apoptosis regulates passive immune transfer in newborn kids. J Dairy Sci 2008; 91:2086-8. [PMID: 18420639 DOI: 10.3168/jds.2007-0814] [Citation(s) in RCA: 29] [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] [Indexed: 11/19/2022]
Abstract
Ten newborn kids were used to evaluate the relationship between apoptosis and passive immune transfer in neonatal enterocytes. Kids were slaughtered in groups of 2 at birth, 1, 2, 3, or 60 d postpartum, and samples of duodenal epithelium collected from each animal. Samples were fixed, dehydrated, and embedded in paraffin wax. Sections were assessed for apoptotic cells and immunostained for IgG. Our results suggest that IgG absorption is mediated by apoptotic enterocytes. Thus, delaying apoptosis may improve the success of passive immune transfer.
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Affiliation(s)
- A Castro-Alonso
- Department of Morphology, Las Palmas de Gran Canaria University, Arucas 35413, Spain
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Argüello A, Castro N, Batista M, Moreno-Indias I, Morales-delaNuez A, Sanchez-Macias D, Quesada E, Capote J. Chitotriosidase Activity in Goat Blood and Colostrum. J Dairy Sci 2008; 91:2067-70. [DOI: 10.3168/jds.2007-0826] [Citation(s) in RCA: 18] [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] [Indexed: 11/19/2022]
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Capote J, Castro N, Caja G, Fernández G, Briggs H, Argüello A. Effects of the frequency of milking and lactation stage on milk fractions and milk composition in Tinerfeña dairy goats. Small Rumin Res 2008. [DOI: 10.1016/j.smallrumres.2007.11.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [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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DiFranco M, Capote J, Quiñonez M, Vergara JL. Voltage-dependent dynamic FRET signals from the transverse tubules in mammalian skeletal muscle fibers. ACTA ACUST UNITED AC 2008; 130:581-600. [PMID: 18040060 PMCID: PMC2151662 DOI: 10.1085/jgp.200709831] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Two hybrid voltage-sensing systems based on fluorescence resonance energy transfer (FRET) were used to record membrane potential changes in the transverse tubular system (TTS) and surface membranes of adult mice skeletal muscle fibers. Farnesylated EGFP or ECFP (EGFP-F and ECFP-F) were used as immobile FRET donors, and either non-fluorescent (dipicrylamine [DPA]) or fluorescent (oxonol dye DiBAC(4)(5)) lipophilic anions were used as mobile energy acceptors. Flexor digitorum brevis (FDB) muscles were transfected by in vivo electroporation with pEGFP-F and pECFP-F. Farnesylated fluorescent proteins were efficiently expressed in the TTS and surface membranes. Voltage-dependent optical signals resulting from resonance energy transfer from fluorescent proteins to DPA were named QRET transients, to distinguish them from FRET transients recorded using DiBAC(4)(5). The peak DeltaF/F of QRET transients elicited by action potential stimulation is twice larger in fibers expressing ECFP-F as those with EGFP-F (7.1% vs. 3.6%). These data provide a unique experimental demonstration of the importance of the spectral overlap in FRET. The voltage sensitivity of QRET and FRET signals was demonstrated to correspond to the voltage-dependent translocation of the charged acceptors, which manifest as nonlinear components in current records. For DPA, both electrical and QRET data were predicted by radial cable model simulations in which the maximal time constant of charge translocation was 0.6 ms. FRET signals recorded in response to action potentials in fibers stained with DiBAC(4)(5) exhibit DeltaF/F amplitudes as large as 28%, but their rising phase was slower than those of QRET signals. Model simulations require a time constant for charge translocation of 1.6 ms in order to predict current and FRET data. Our results provide the basis for the potential use of lipophilic ions as tools to test for fast voltage-dependent conformational changes of membrane proteins in the TTS.
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Affiliation(s)
- Marino DiFranco
- Department of Physiology, David Geffen School of Medicine, University of California-Los Angeles, Los Angeles, CA 90095, USA
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