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Pool A, Kuna EM, Anderson-Mellies A, Kreis A, Marable M, Fraley C, Pacheco D, Green AL. Medical Record Level-Evaluation of Impact of Demographic and Socioeconomic Factors on Pediatric Neuro-Oncology Outcomes at Children's Hospital Colorado. Res Sq 2024:rs.3.rs-3849043. [PMID: 38260550 PMCID: PMC10802725 DOI: 10.21203/rs.3.rs-3849043/v1] [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] [Subscribe] [Scholar Register] [Indexed: 01/24/2024]
Abstract
Purpose A medical record-level cohort study to investigate demographic and socioeconomic factors influencing treatment, timing of care, and survival outcomes in pediatric patients diagnosed with central nervous system (CNS) tumors. Methods Using electronic health records of patients at Children's Hospital Colorado from 1986-2020, we identified 898 patients treated for CNS tumors. The primary outcomes of interest were 5-year survival, timing of diagnosis, and treatment. Multivariable logistic regression and Cox regression were used to identify covariates associated with our outcomes of interest. Results We found that age, race, tumor type, diagnosis year, and social concerns influenced receipt and timing of treatment. Age, race, patient rural vs. urban residence, and tumor impacted survival outcomes. Time to presentation and treatment were significantly different between White and minority patients. American Indian/Alaska Native and Black patients were less likely to receive chemo compared to White patients (OR 0.28, 0.93 p = 0.037, < 0.001). Patients with 3 + social concerns were more likely to survive after 5 years than children with no or unknown social concerns (OR 1.84, p = 0.011). However, with an adjusted hazards ratio, children with 2 social concerns were less likely to survive to 5 years than children with no or unknown concerns (OR 0.58, p = 0.066). Conclusions Demographic and socioeconomic factors influence timing of care and survival outcomes in pediatric patients with CNS tumors. Minority status, age, social factors, rural, and urban patients experience differences in care. This emphasizes the importance of considering these factors and addressing disparities to achieve equitable care.
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Owen MT, Pacheco D, Dyer N, Barnes JC, Von Hatten L, Caughy MO. Stability of Parenting Profiles in Early Childhood for African American Children in Households Experiencing Poverty. Early Child Res Q 2023; 65:295-305. [PMID: 37900880 PMCID: PMC10609660 DOI: 10.1016/j.ecresq.2023.07.006] [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] [Subscribe] [Scholar Register] [Indexed: 10/31/2023]
Abstract
Taking a person-centered approach, this study examined stability and change in profiles of parenting qualities observed at two times in early childhood in a sample of 146 mothers of African American children living in households experiencing poverty. Latent Profile Analysis (LPA) of six qualities of parenting rated from mother-child interactions at ages 2.5 and 3.6 years revealed four distinct parenting profiles characterized as Child-Oriented, Moderately Child-Oriented, Harsh-Intrusive, and Withdrawn at each age. Profile membership was fairly stable, with 41% classified similarly at both times. Moderately Child-Oriented was the least stable, with 24% of this group similarly classified at Time 2; 49-52% of each of the other three groups were classified similarly the second time, indicating their greater stability. Changes from Harsh-Intrusive to Withdrawn profiles or vice versa were rare (n = 3). To further address profile stability, Time 2 profile posterior probabilities were predicted in multiple regression models from Time 1 parenting profiles, with the child-oriented profile as reference group, Time 2 child externalizing and internalizing behavior problems, and cumulative risk. Results indicated Time 2 Withdrawn and Harsh-Intrusive profiles were significantly associated with Time 1 membership in their analogous profile but not with other Time 1 profiles, providing further evidence for stability and distinctiveness of these profiles. Only the Moderately Child-Oriented profile was associated with greater cumulative risk at Time 2; it was not related to any of the other Time 1 profiles. In addition, Withdrawn profile membership at Time 2 was associated with greater child internalizing and fewer externalizing problems. The Time 2 Child-Oriented profile was associated with less probability of membership in withdrawn or harsh-intrusive profiles at Time 1.
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Rodríguez-Hernández A, Navarro-Villarán E, González R, Pereira S, Soriano-De Castro LB, Sarrias-Giménez A, Barrera-Pulido L, Álamo-Martínez JM, Serrablo-Requejo A, Blanco-Fernández G, Nogales-Muñoz A, Gila-Bohórquez A, Pacheco D, Torres-Nieto MA, Serrano-Díaz-Canedo J, Suárez-Artacho G, Bernal-Bellido C, Marín-Gómez LM, Barcena JA, Gómez-Bravo MA, Padilla CA, Padillo FJ, Muntané J. Corrigendum to 'Regulation of cell death receptor S-nitrosylation and apoptotic signaling by Sorafenib in hepatoblastoma cells'[Redox Biol 6(2015):174-182]. Redox Biol 2023:102744. [PMID: 37246098 DOI: 10.1016/j.redox.2023.102744] [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: 05/30/2023] Open
Affiliation(s)
- A Rodríguez-Hernández
- Institute of Biomedicine of Seville (IBiS), Hospital Universitario "Virgen del Rocío"/CSIC/Universidad de Sevilla, Av. Manuel Siurot s/n, 41013, Sevilla, Spain
| | - E Navarro-Villarán
- Institute of Biomedicine of Seville (IBiS), Hospital Universitario "Virgen del Rocío"/CSIC/Universidad de Sevilla, Av. Manuel Siurot s/n, 41013, Sevilla, Spain
| | - R González
- Department of Biochemistry and Molecular Biology, University of Cordoba, Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), 14071, Córdoba, Spain
| | - S Pereira
- Institute of Biomedicine of Seville (IBiS), Hospital Universitario "Virgen del Rocío"/CSIC/Universidad de Sevilla, Av. Manuel Siurot s/n, 41013, Sevilla, Spain
| | - L B Soriano-De Castro
- Institute of Biomedicine of Seville (IBiS), Hospital Universitario "Virgen del Rocío"/CSIC/Universidad de Sevilla, Av. Manuel Siurot s/n, 41013, Sevilla, Spain
| | - A Sarrias-Giménez
- Institute of Biomedicine of Seville (IBiS), Hospital Universitario "Virgen del Rocío"/CSIC/Universidad de Sevilla, Av. Manuel Siurot s/n, 41013, Sevilla, Spain
| | - L Barrera-Pulido
- Department of General Surgery, Hospital Universitario "Virgen del Rocío"-"Virgen Macarena"/Instituto de Biomedicina de Sevilla (IBiS)/CSIC/Universidad de Sevilla, Sevilla, Spain
| | - J M Álamo-Martínez
- Department of General Surgery, Hospital Universitario "Virgen del Rocío"-"Virgen Macarena"/Instituto de Biomedicina de Sevilla (IBiS)/CSIC/Universidad de Sevilla, Sevilla, Spain; CENTRO DE INVESTIGACIÓN BIOMÉDICA EN RED de Enfermedades Hepáticas y Digestivas (CIBERehd), Spain
| | - A Serrablo-Requejo
- Hepato-Biliary Surgery Unit, Hospital Universitario "Miguel Servet", Zaragoza, Spain
| | - G Blanco-Fernández
- Hepato-Biliary-Pancreatic and Liver Transplant Service, Hospital Universitario "Infanta Cristina", Badajoz, Spain
| | - A Nogales-Muñoz
- Department of General Surgery, Hospital Universitario "Virgen del Rocío"-"Virgen Macarena"/Instituto de Biomedicina de Sevilla (IBiS)/CSIC/Universidad de Sevilla, Sevilla, Spain
| | - A Gila-Bohórquez
- Department of General Surgery, Hospital Universitario "Virgen del Rocío"-"Virgen Macarena"/Instituto de Biomedicina de Sevilla (IBiS)/CSIC/Universidad de Sevilla, Sevilla, Spain
| | - D Pacheco
- Department of General Surgery and Department of Pathology, Hospital Universitario "Rio Hortega", Valladolid, Spain
| | - M A Torres-Nieto
- Department of Pathology, Hospital Universitario "Rio Hortega", Valladolid, Spain
| | - J Serrano-Díaz-Canedo
- Department of General Surgery, Hospital Universitario "Virgen del Rocío"-"Virgen Macarena"/Instituto de Biomedicina de Sevilla (IBiS)/CSIC/Universidad de Sevilla, Sevilla, Spain
| | - G Suárez-Artacho
- Department of General Surgery, Hospital Universitario "Virgen del Rocío"-"Virgen Macarena"/Instituto de Biomedicina de Sevilla (IBiS)/CSIC/Universidad de Sevilla, Sevilla, Spain
| | - C Bernal-Bellido
- Department of General Surgery, Hospital Universitario "Virgen del Rocío"-"Virgen Macarena"/Instituto de Biomedicina de Sevilla (IBiS)/CSIC/Universidad de Sevilla, Sevilla, Spain
| | - L M Marín-Gómez
- Department of General Surgery, Hospital Universitario "Virgen del Rocío"-"Virgen Macarena"/Instituto de Biomedicina de Sevilla (IBiS)/CSIC/Universidad de Sevilla, Sevilla, Spain
| | - J A Barcena
- Department of Biochemistry and Molecular Biology, University of Cordoba, Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), 14071, Córdoba, Spain
| | - M A Gómez-Bravo
- Department of General Surgery, Hospital Universitario "Virgen del Rocío"-"Virgen Macarena"/Instituto de Biomedicina de Sevilla (IBiS)/CSIC/Universidad de Sevilla, Sevilla, Spain; CENTRO DE INVESTIGACIÓN BIOMÉDICA EN RED de Enfermedades Hepáticas y Digestivas (CIBERehd), Spain
| | - C A Padilla
- Department of Biochemistry and Molecular Biology, University of Cordoba, Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), 14071, Córdoba, Spain
| | - F J Padillo
- Department of General Surgery, Hospital Universitario "Virgen del Rocío"-"Virgen Macarena"/Instituto de Biomedicina de Sevilla (IBiS)/CSIC/Universidad de Sevilla, Sevilla, Spain; CENTRO DE INVESTIGACIÓN BIOMÉDICA EN RED de Enfermedades Hepáticas y Digestivas (CIBERehd), Spain
| | - J Muntané
- Department of General Surgery, Hospital Universitario "Virgen del Rocío"-"Virgen Macarena"/Instituto de Biomedicina de Sevilla (IBiS)/CSIC/Universidad de Sevilla, Sevilla, Spain; CENTRO DE INVESTIGACIÓN BIOMÉDICA EN RED de Enfermedades Hepáticas y Digestivas (CIBERehd), Spain.
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Della Rosa M, Duranovich F, Pacheco D, Sandoval E, Khan A, Biswas A, Jonker A. Forage type affects the temporal methane emission profiles in dairy cows fed fresh forages. Anim Feed Sci Technol 2023. [DOI: 10.1016/j.anifeedsci.2023.115604] [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: 02/21/2023]
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Bougouin A, Hristov A, Dijkstra J, Aguerre MJ, Ahvenjärvi S, Arndt C, Bannink A, Bayat AR, Benchaar C, Boland T, Brown WE, Crompton LA, Dehareng F, Dufrasne I, Eugène M, Froidmont E, van Gastelen S, Garnsworthy PC, Halmemies-Beauchet-Filleau A, Herremans S, Huhtanen P, Johansen M, Kidane A, Kreuzer M, Kuhla B, Lessire F, Lund P, Minnée EMK, Muñoz C, Niu M, Nozière P, Pacheco D, Prestløkken E, Reynolds CK, Schwarm A, Spek JW, Terranova M, Vanhatalo A, Wattiaux MA, Weisbjerg MR, Yáñez-Ruiz DR, Yu Z, Kebreab E. Prediction of nitrogen excretion from data on dairy cows fed a wide range of diets compiled in an intercontinental database: A meta-analysis. J Dairy Sci 2022; 105:7462-7481. [PMID: 35931475 DOI: 10.3168/jds.2021-20885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Accepted: 04/03/2022] [Indexed: 11/19/2022]
Abstract
Manure nitrogen (N) from cattle contributes to nitrous oxide and ammonia emissions and nitrate leaching. Measurement of manure N outputs on dairy farms is laborious, expensive, and impractical at large scales; therefore, models are needed to predict N excreted in urine and feces. Building robust prediction models requires extensive data from animals under different management systems worldwide. Thus, the study objectives were (1) to collate an international database of N excretion in feces and urine based on individual lactating dairy cow data from different continents; (2) to determine the suitability of key variables for predicting fecal, urinary, and total manure N excretion; and (3) to develop robust and reliable N excretion prediction models based on individual data from lactating dairy cows consuming various diets. A raw data set was created based on 5,483 individual cow observations, with 5,420 fecal N excretion and 3,621 urine N excretion measurements collected from 162 in vivo experiments conducted by 22 research institutes mostly located in Europe (n = 14) and North America (n = 5). A sequential approach was taken in developing models with increasing complexity by incrementally adding variables that had a significant individual effect on fecal, urinary, or total manure N excretion. Nitrogen excretion was predicted by fitting linear mixed models including experiment as a random effect. Simple models requiring dry matter intake (DMI) or N intake performed better for predicting fecal N excretion than simple models using diet nutrient composition or milk performance parameters. Simple models based on N intake performed better for urinary and total manure N excretion than those based on DMI, but simple models using milk urea N (MUN) and N intake performed even better for urinary N excretion. The full model predicting fecal N excretion had similar performance to simple models based on DMI but included several independent variables (DMI, diet crude protein content, diet neutral detergent fiber content, milk protein), depending on the location, and had root mean square prediction errors as a fraction of the observed mean values of 19.1% for intercontinental, 19.8% for European, and 17.7% for North American data sets. Complex total manure N excretion models based on N intake and MUN led to prediction errors of about 13.0% to 14.0%, which were comparable to models based on N intake alone. Intercepts and slopes of variables in optimal prediction equations developed on intercontinental, European, and North American bases differed from each other, and therefore region-specific models are preferred to predict N excretion. In conclusion, region-specific models that include information on DMI or N intake and MUN are required for good prediction of fecal, urinary, and total manure N excretion. In absence of intake data, region-specific complex equations using easily and routinely measured variables to predict fecal, urinary, or total manure N excretion may be used, but these equations have lower performance than equations based on intake.
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Affiliation(s)
- A Bougouin
- Department of Animal Science, University of California, Davis 95616.
| | - A Hristov
- Department of Animal Science, The Pennsylvania State University, University Park 16803
| | - J Dijkstra
- Animal Nutrition Group, Wageningen University and Research, 6700 AH Wageningen, the Netherlands
| | - M J Aguerre
- Department of Animal and Veterinary Sciences, Clemson University, Clemson, SC 29634
| | - S Ahvenjärvi
- Animal Nutrition, Production Systems, Natural Resources Institute Finland (Luke), FI-31600 Jokioinen, Finland
| | - C Arndt
- Mazingira Centre, International Livestock Research Institute (ILRI), 00100 Nairobi, Kenya
| | - A Bannink
- Wageningen Livestock Research, Wageningen University and Research, 6700 AH Wageningen, the Netherlands
| | - A R Bayat
- Animal Nutrition, Production Systems, Natural Resources Institute Finland (Luke), FI-31600 Jokioinen, Finland
| | - C Benchaar
- Sherbrooke Research and Development Centre, Agriculture and Agri-Food Canada, Sherbrooke, Quebec, Canada J1M 0C8
| | - T Boland
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin 4, Ireland
| | - W E Brown
- Department of Animal and Dairy Sciences, University of Wisconsin-Madison 53706-1205; Department of Animal Sciences, The Ohio State University, Columbus 43210
| | - L A Crompton
- School of Agriculture, Policy and Development, University of Reading, Reading RG6 6AR, United Kingdom
| | - F Dehareng
- Department of Valorisation of Agricultural Products, Walloon Agricultural Research Centre, 5030 Gembloux, Belgium
| | - I Dufrasne
- Department of Veterinary Management of Animal Resources, Faculty of Veterinary Medicine, Fundamental and Applied Research for Animal and Health (FARAH), University of Liège, 4000 Liège, Belgium
| | - M Eugène
- INRAE - Université Clermont Auvergne - VetAgroSup UMR 1213 Unité Mixte de Recherche sur les Herbivores, Centre de recherche Auvergne-Rhône-Alpes, Theix, 63122 Saint-Genès-Champanelle, France
| | - E Froidmont
- Department of Valorisation of Agricultural Products, Walloon Agricultural Research Centre, 5030 Gembloux, Belgium
| | - S van Gastelen
- Wageningen Livestock Research, Wageningen University and Research, 6700 AH Wageningen, the Netherlands
| | - P C Garnsworthy
- School of Biosciences, University of Nottingham, Loughborough LE12 5RD, United Kingdom
| | - A Halmemies-Beauchet-Filleau
- Faculty of Agriculture and Forestry, Department of Agricultural Sciences, University of Helsinki, 00014 Helsinki, Finland
| | - S Herremans
- Department of Valorisation of Agricultural Products, Walloon Agricultural Research Centre, 5030 Gembloux, Belgium
| | - P Huhtanen
- Department of Agricultural Science for Northern Sweden, Swedish University of Agricultural Sciences, SE-901 83, Umeå, Sweden
| | - M Johansen
- Department of Animal Science, Aarhus University, AU Foulum, Dk-8830 Tjele, Denmark
| | - A Kidane
- Department of Animal and Aquacultural Sciences, Norwegian University of Life Sciences, 1433 Ås, Norway
| | - M Kreuzer
- Institute of Agricultural Sciences, ETH Zurich, 8092 Zurich, Switzerland
| | - B Kuhla
- Institute for Farm Animal Biology (FBN), Institute of Nutritional Physiology "Oskar Kellner," Dummerstorf, Mecklenburg-Vorpommern, Germany
| | - F Lessire
- Department of Veterinary Management of Animal Resources, Faculty of Veterinary Medicine, Fundamental and Applied Research for Animal and Health (FARAH), University of Liège, 4000 Liège, Belgium
| | - P Lund
- Department of Animal Science, Aarhus University, AU Foulum, Dk-8830 Tjele, Denmark
| | - E M K Minnée
- DairyNZ Ltd., Private Bag 3221, Hamilton, New Zealand 3240
| | - C Muñoz
- Instituto de Investigaciones Agropecuarias, INIA Remehue, Ruta 5 S, Osorno, Chile
| | - M Niu
- Department of Animal Science, University of California, Davis 95616; Institute of Agricultural Sciences, ETH Zurich, 8092 Zurich, Switzerland
| | - P Nozière
- INRAE - Université Clermont Auvergne - VetAgroSup UMR 1213 Unité Mixte de Recherche sur les Herbivores, Centre de recherche Auvergne-Rhône-Alpes, Theix, 63122 Saint-Genès-Champanelle, France
| | - D Pacheco
- Ag Research, Palmerston North 4410, New Zealand
| | - E Prestløkken
- Department of Animal and Aquacultural Sciences, Norwegian University of Life Sciences, 1433 Ås, Norway
| | - C K Reynolds
- School of Agriculture, Policy and Development, University of Reading, Reading RG6 6AR, United Kingdom
| | - A Schwarm
- Department of Animal and Aquacultural Sciences, Norwegian University of Life Sciences, 1433 Ås, Norway
| | - J W Spek
- Wageningen Livestock Research, Wageningen University and Research, 6700 AH Wageningen, the Netherlands
| | - M Terranova
- AgroVet-Strickhof, ETH Zurich, 8315 Lindau, Switzerland
| | - A Vanhatalo
- Faculty of Agriculture and Forestry, Department of Agricultural Sciences, University of Helsinki, 00014 Helsinki, Finland
| | - M A Wattiaux
- Department of Animal and Dairy Sciences, University of Wisconsin-Madison 53706-1205
| | - M R Weisbjerg
- Department of Animal Science, Aarhus University, AU Foulum, Dk-8830 Tjele, Denmark
| | - D R Yáñez-Ruiz
- Estación Experimental del Zaidin, CSIC, 1, 18008 Granada, Spain
| | - Z Yu
- Department of Animal Sciences, The Ohio State University, Columbus 43210
| | - E Kebreab
- Department of Animal Science, University of California, Davis 95616
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Della Rosa MM, Sandoval E, Luo D, Pacheco D, Jonker A. Effect of feeding fresh forage plantain (Plantago lanceolata) or ryegrass-based pasture on methane emissions, total-tract digestibility, and rumen fermentation of nonlactating dairy cows. J Dairy Sci 2022; 105:6628-6638. [PMID: 35787331 DOI: 10.3168/jds.2021-21757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Accepted: 04/06/2022] [Indexed: 11/19/2022]
Abstract
Plantain (Plantago lanceolata) is an herb used to reduce the forage deficit of ryegrass-based pastures during the summer. This herb is being promoted for its reduced environmental impact in terms of nitrogen emissions, particularly reducing urinary nitrogen. However, the effect of plantain on emissions of enteric CH4, the main greenhouse gas produced from ruminant-based production systems, is not known. The aim of the present trial was to determine CH4 emissions and rumen fermentation characteristics of nonlactating dairy cows fed 100% plantain (PLT) or 100% perennial ryegrass (RG; Lolium perenne) in 2 experiments (E1 and E2). The forages were in a vegetative growth stage in E1 and were in a reproductive growth stage in E2. Methane emissions from 16 cows in each experiment were measured in respiration chambers for 2 d. Methane emissions per unit of dry matter intake (CH4 yield) were 15 and 28% less for cows fed PLT than those fed RG in E1 and E2, respectively. Dry matter digestibility of PLT was 7 and 27% less than that of RG in E1 and E2, respectively, and CH4 per unit of dry matter digested was similar for PLT and RG in both experiments. There were only minor (but some significant) differences in rumen fermentation characteristics between cows fed PLT and RG in both experiments. In conclusion, CH4 yield was lower for cows fed PLT compared with those fed RG in both experiments and this reduction was largely explained by the lesser dry matter digestibility of PLT.
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Affiliation(s)
- M M Della Rosa
- AgResearch Limited, Grasslands Research Centre, Tennent Drive, 11 Dairy Farm Road, Private Bag 11008, Palmerston North 4442, New Zealand
| | - E Sandoval
- AgResearch Limited, Grasslands Research Centre, Tennent Drive, 11 Dairy Farm Road, Private Bag 11008, Palmerston North 4442, New Zealand
| | - D Luo
- AgResearch Limited, Grasslands Research Centre, Tennent Drive, 11 Dairy Farm Road, Private Bag 11008, Palmerston North 4442, New Zealand
| | - D Pacheco
- AgResearch Limited, Grasslands Research Centre, Tennent Drive, 11 Dairy Farm Road, Private Bag 11008, Palmerston North 4442, New Zealand
| | - A Jonker
- AgResearch Limited, Grasslands Research Centre, Tennent Drive, 11 Dairy Farm Road, Private Bag 11008, Palmerston North 4442, New Zealand.
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Pacheco D, Fraley C, Walker D, Green A. EPID-10. Creation, use, and effectiveness of a primary provider education tool for timely pediatric CNS tumor diagnosis based on HeadSmart. Neuro Oncol 2022. [PMCID: PMC9165106 DOI: 10.1093/neuonc/noac079.178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
BACKGROUND: Patients of minority race and ethnicity and lower socioeconomic status experience poorer survival of pediatric CNS tumors in the US. These disparities arise in part from differences in stage of disease at diagnosis, suggesting they could be mitigated by earlier diagnosis. HeadSmart is a campaign in the UK to increase awareness of pediatric CNS tumor symptoms among primary care practitioners and the public that has led to a significant decrease in time to diagnosis. METHODS: We created a 30-minute workshop, based on HeadSmart, to educate primary care providers on the presentation, common symptoms, work-up, and diagnosis of pediatric CNS tumors. We publicized the workshop throughout Colorado and delivered it via live webinar or online video recording. We collected demographic, specialty, and practice setting data from participants via optional survey. Participants could also take a 10-question, multiple-choice assessment of their knowledge on pediatric CNS tumor symptoms, work-up, and diagnosis before and after the workshop. RESULTS: We have now delivered the workshop to more than 400 providers in Colorado and the US. 39 providers participated in the survey; 19 completed both the pre- and post-workshop assessments. The mean pre-workshop score was 4.5 correct out of 10 (range 0-7); the mean post-workshop score was 5.4 (range 3-7) (unpaired t-test p=0.04). The mean improvement was 1.1 (paired t-test p=0.007). The majority of participants who completed the survey were pediatricians (n=30). Family practice (FP) physicians and pediatric/FP advance practice practitioners also participated. There was no significant difference in improvement for pediatricians vs. other providers. CONCLUSIONS: An educational tool based on the HeadSmart campaign was widely disseminated and is effective at increasing understanding of the timely diagnosis of pediatric CNS tumors among primary providers in Colorado. Further study, refinement, and dissemination have the potential to help mitigate disparities in pediatric CNS tumor outcomes.
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Affiliation(s)
| | - Claire Fraley
- Morgan Adams Foundation Pediatric Brain Tumor Research Program, University of Colorado School of Medicine/Children's Hospital Colorado , Aurora, CO , USA
| | - David Walker
- University of Nottingham , Nottingham , United Kingdom
| | - Adam Green
- Morgan Adams Foundation Pediatric Brain Tumor Research Program, University of Colorado School of Medicine/Children's Hospital Colorado , Aurora, CO , USA
- University of Colorado Cancer Center , Aurora, CO , USA
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Bica R, Palarea-Albaladejo J, Lima J, Uhrin D, Miller GA, Bowen JM, Pacheco D, Macrae A, Dewhurst RJ. Methane emissions and rumen metabolite concentrations in cattle fed two different silages. Sci Rep 2022; 12:5441. [PMID: 35361825 PMCID: PMC8971404 DOI: 10.1038/s41598-022-09108-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Accepted: 03/10/2022] [Indexed: 11/16/2022] Open
Abstract
In this study, 18 animals were fed two forage-based diets: red clover (RC) and grass silage (GS), in a crossover-design experiment in which methane (CH4) emissions were recorded in respiration chambers. Rumen samples obtained through naso-gastric sampling tubes were analysed by NMR. Methane yield (g/kg DM) was significantly lower from animals fed RC (17.8 ± 3.17) compared to GS (21.2 ± 4.61) p = 0.008. In total 42 metabolites were identified, 6 showing significant differences between diets (acetate, propionate, butyrate, valerate, 3-phenylopropionate, and 2-hydroxyvalerate). Partial least squares discriminant analysis (PLS-DA) was used to assess which metabolites were more important to distinguish between diets and partial least squares (PLS) regressions were used to assess which metabolites were more strongly associated with the variation in CH4 emissions. Acetate, butyrate and propionate along with dimethylamine were important for the distinction between diets according to the PLS-DA results. PLS regression revealed that diet and dry matter intake are key factors to explain CH4 variation when included in the model. Additionally, PLS was conducted within diet, revealing that the association between metabolites and CH4 emissions can be conditioned by diet. These results provide new insights into the methylotrophic methanogenic pathway, confirming that metabolite profiles change according to diet composition, with consequences for CH4 emissions.
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Affiliation(s)
- R Bica
- Scotland's Rural College, SRUC, West Mains Rd, Edinburgh, EH9 3JG, UK. .,Royal (Dick) School of Veterinary Studies and the Roslin Institute, University of Edinburgh, Easter Bush Campus, Midlothian, EH25 9RG, UK. .,Institute National de La Recherche Agronomique (INRAE), 24 Chemin de Borde Rouge, 31320, Auzeville-Tolosane, France.
| | - J Palarea-Albaladejo
- Biomathematics and Statistics Scotland, JCMB, Peter Guthrie Tait Road, The King's Buildings, Edinburgh, EH9 3FD, UK.,Department of Computer Science, Applied Mathematics and Statistics, University of Girona, 17003, Girona, Spain
| | - J Lima
- Scotland's Rural College, SRUC, West Mains Rd, Edinburgh, EH9 3JG, UK.,Royal (Dick) School of Veterinary Studies and the Roslin Institute, University of Edinburgh, Easter Bush Campus, Midlothian, EH25 9RG, UK
| | - D Uhrin
- The University of Edinburgh, EaStCHEM School of Chemistry, The King's Buildings, David Brewster Road, Edinburgh, EH9 3FJ, UK
| | - G A Miller
- Scotland's Rural College, SRUC, West Mains Rd, Edinburgh, EH9 3JG, UK
| | - J M Bowen
- Scotland's Rural College, SRUC, West Mains Rd, Edinburgh, EH9 3JG, UK
| | - D Pacheco
- AgResearch Grasslands Research Centre, Tennent Drive, 11 Dairy Farm Road, Palmerston North, 4442, New Zealand
| | - A Macrae
- Royal (Dick) School of Veterinary Studies and the Roslin Institute, University of Edinburgh, Easter Bush Campus, Midlothian, EH25 9RG, UK
| | - R J Dewhurst
- Scotland's Rural College, SRUC, West Mains Rd, Edinburgh, EH9 3JG, UK
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Caughy MO, Brinkley DY, Pacheco D, Rojas R, Miao A, Contreras MM, Owen MT, Easterbrooks MA, McClelland M. Self-Regulation Development Among Young Spanish-English Dual Language Learners. Early Child Res Q 2022; 60:226-236. [PMID: 35496376 PMCID: PMC9053734 DOI: 10.1016/j.ecresq.2022.02.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Despite strong evidence self-regulation skills are critical for school readiness, there remains a dearth of longitudinal studies that describe developmental trajectories of self-regulation, particularly among low-resource and underrepresented populations such as Spanish-English dual-language learners (DLLs). The present study examined individual differences in trajectories of self-regulation among 459 Spanish-English DLLs who were Hispanic from four different samples and three geographic locations in the U.S. Self-regulation was assessed in all samples using repeated administration of the Head-Toes-Knees-Shoulders (HTKS) task from early childhood through early elementary school. Results of latent growth curve analyses revealed that growth was best represented by quadratic trajectories. Latent class growth analyses captured significant individual differences in self-regulation trajectories. One group of children (41%) started with higher HTKS scores and displayed rapid early growth in performance. A similar percentage of children (41%) displayed intermediate growth in self-regulation, starting with lower HTKS scores but displaying rapid growth commencing arrange 4.5 years. Finally, about 18% of the sample did not display growth in HTKS performance until after entry to elementary school, around age 6 years. Girls were half as likely as boys to be in this later developing group. Likewise, children from families at the upper end of the socioeconomic distribution in this low-income sample were significantly less likely to be in the later developing group relative to children from families with lower SES. Study findings indicate the importance of monitoring growth rates in self-regulation as a means of identifying children at risk for entering school without the requisite self-regulation skills.
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10
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Pacheco D, Izaola O, Primo D, de Luis D. Role of the variant rs3774261 of adiponectin gene on adiponectin levels and ratio adiponectin/leptin after biliopancreatic diversion in morbid obese subjects. Eur Rev Med Pharmacol Sci 2022; 26:240-248. [PMID: 35049001 DOI: 10.26355/eurrev_202201_27774] [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: 06/14/2023]
Abstract
OBJECTIVE Single nucleotide variants (SNVs) of ADIPOQ gene on different comorbidities are related to obesity and weight loss. Despite, there are no studies evaluating the effect of rs3774261 on metabolic variables after bariatric surgery. We evaluated the effect of SNV rs3774261 of ADIPOQ gene on biochemical changes after biliopancreatic diversion surgery in morbidly obese subjects for 3 years follow-up. PATIENTS AND METHODS One hundred and forty-nine patients (111 females/38 males) with morbid obesity (body mass index >40 kg/m2) without diabetes mellitus type 2 were enrolled. Biochemical and anthropometric evaluation were registered before and after 1, 2, and 3 years. Genotype of rs3774261 has been studied. RESULTS Total cholesterol, LDL-cholesterol and triglyceride levels decreased in all genotype groups during the study. Although the improvement in glucose, insulin and HOMA-IR was significant in two genotypes (AA and AG); these changes were earlier in the AA genotype than in Ag and GG genotypes. Adiponectin levels increased in a significant way in subjects with AA genotype in the 3 follow-up periods (first year delta: 16.4±0.5 ng/ml; p=0.03, second year delta: 21.3±0.5 ng/ mL; p=0.02 and third year delta: 23.6±0.7 ng/mL; p=0.01) and at 3 years in subjects with AG genotype (delta: 18.3±0.4 ng/ mL; p=0.03). The ratio adiponectin/leptin increased in a significant way in subjects with AA genotype in the 3 follow-up times (first year delta: 0.40±0.1 units; p=0.02, second year delta: 0.58±0.1 units; p=0.01 and third year delta: 0.65±0.1 ng/mL; p=0.01) and at 3 years in subjects with AG genotype (delta: 0.61±0.1 ng/ mL; p=0.02). Subjects with GG genotype did not show a significant improvement in these parameters during the follow-up. CONCLUSIONS G allele carriers of rs3774261 showed a delay in the improvement of glucose metabolism parameters, adiponectin and adiponectin/leptin ratio.
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Affiliation(s)
- D Pacheco
- Center of Investigation of Endocrinology and Nutrition, School of Medicine, Department of Endocrinology and Nutrition, Hospital Clinico Universitario, University of Valladolid, Valladolid, Spain.
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11
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de Luis D, Izaola O, Primo D, Pacheco D. The gene variant rs2419621 of ACYL-CoA synthetase long-chain 5 gene is associated with weight loss and metabolic changes in response to a robotic sleeve gastrectomy in morbid obese subjects. Eur Rev Med Pharmacol Sci 2021; 25:7037-7043. [PMID: 34859867 DOI: 10.26355/eurrev_202111_27254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Genetic mechanisms have been involved in the pathogenesis of obesity and weight loss due to bariatric surgery. The aim of our work was to evaluate the effects of rs2419621 genetic variant of ACSL5 gene on weight and metabolic changes after a robotic sleeve gastrectomy. PATIENTS AND METHODS 48 patients were enrolled. Comorbidities, biochemical and anthropometric parameters evaluation were registered before and after 3, 6 and 12 months follow up. Genotype of rs2419621 ACSL5 gene was evaluated. RESULTS We classified the subjects with a dominant model, in two groups: those carriers T allele (TT+CT, 37.5%) and non-carriers T allele (CC, 62.5%). We reported a statistically significant reduction of body weight, waist circumference, percentage of excess of weight loss (EWL%), blood pressure, glucose, insulin, LDL-cholesterol and triglycerides after surgery. After 12 months, delta of (EWL%; 70.1% vs. 64,2%; p=0.04), weight (40.7+4.1 kg vs. 32.5+4.8 kg; p=0.03), waist circumference (29.1+3.1 cm vs. 22.2+2.8 kg; p=0.02) and triglycerides (51.2+9.1 mg/dl vs. 32.1+8.1; p=0.02) were higher in T allele carriers than non-T allele carriers. All comorbidities improved, but the percentage of patients with hypertriglyceridemia diminished early in the 3-month follow-up in the T-allele carriers, and at 12 months, no patient with the T allele had hypertriglyceridemia. CONCLUSIONS Our data showed that the genetic variant (rs2419621) of ACSL5 gene are associated with better improvement of adiposity and triglyceride levels in subjects with T allele, after a robotic sleeve gastrectomy.
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Affiliation(s)
- D de Luis
- Endocrinology and Nutrition Research Center, School of Medicine, Department of Endocrinology and Nutrition, Hospital Clinico Universitario, University of Valladolid, Valladolid, Spain.
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Morales AG, Vibart RE, Li MM, Jonker A, Pacheco D, Hanigan MD. Evaluation of Molly model predictions of ruminal fermentation, nutrient digestion, and performance by dairy cows consuming ryegrass-based diets. J Dairy Sci 2021; 104:9676-9702. [PMID: 34127259 DOI: 10.3168/jds.2020-19740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Accepted: 04/20/2021] [Indexed: 11/19/2022]
Abstract
Several studies have been conducted to improve grazing management and supplementation in pasture-based systems. However, it is necessary to develop tools that integrate the available information linking the representation of biological processes with animal performance for use in decision making. The objective of this study was to evaluate the precision and accuracy of the Molly cow model predictions of ruminal fermentation, nutrient digestion, and animal performance by cows consuming pasture-based diets to identify model strengths and weaknesses, and to derive new digestive parameters when relevant. Model modifications for adipose tissue, protein synthesis in lean body mass and viscera representation were included. Data used for model evaluations were collected from 25 publications containing 115 treatment means sourced from studies conducted with lactating dairy cattle. The inclusion criteria were that diets contained ≥45% perennial ryegrass (Lolium perenne L.), and that dry matter intake, dietary ingredient composition, and nutrient digestion observations were reported. Animal performance and N excretion variables were also included if they were reported. Model performance was assessed before and after model reparameterization of selected digestive parameters, global sensitivity analysis was conducted after reparameterization, and a 5-fold cross evaluation was performed. Although rumen fermentation predictions were not significantly improved, rumen volatile fatty acids absorption rates were recalculated, which improved the concordance correlation coefficient (CCC) for rumen propionate and ammonia concentration predictions but decreased CCC for acetate predictions. Similar degradation rates of crude protein were observed for grass and total mixed ration diets, but rumen-undegradable protein predictions seemed to be affected by the solubility of the protein source as was the intestinal digestibility coefficient. Ruminal fiber degradation was greater after reparameterization, driven primarily by hemicellulose degradation. Predictions of ruminal and fecal outflow of neutral detergent fiber and acid detergent fiber, as well as total fecal output predictions, improved significantly after reparameterization. Blood urea N and urinary N excretion predictions resulted in similar accuracy using both sets of model parameters, whereas fecal N excretion predictions were significantly improved after reparameterization. Body weight and body condition score predictions were greatly improved after model modifications and reparameterization. Before reparameterization, yield predictions for daily milk, milk fat, milk protein, and milk lactose were greatly overestimated (mean bias of 61.0, 58.7, 73.7, and 64.6% of mean squared error, respectively). Although this problem was partially addressed by model modifications and reparameterization (mean bias of 3.2, 1.1, 1.7, and 0.4% of mean squared error, respectively), CCC values were still small. The ability of the model to predict grass digestion and animal performance in dairy cows consuming pasture-based diets was improved, demonstrating the applicability of this model to these productive systems. However, the failure to predict grass digestion based on standard model inputs without reparameterization indicates there are still fundamental challenges in characterizing feeds for this model.
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Affiliation(s)
- A G Morales
- Department of Dairy Science, Virginia Polytechnic Institute and State University, Blacksburg 24061; Animal Science Institute, Universidad Austral de Chile, Valdivia 5110566, Chile
| | - R E Vibart
- AgResearch, Grasslands Research Centre, Tennent Drive, Palmerston North 4442, New Zealand
| | - M M Li
- Department of Dairy Science, Virginia Polytechnic Institute and State University, Blacksburg 24061
| | - A Jonker
- AgResearch, Grasslands Research Centre, Tennent Drive, Palmerston North 4442, New Zealand
| | - D Pacheco
- AgResearch, Grasslands Research Centre, Tennent Drive, Palmerston North 4442, New Zealand
| | - M D Hanigan
- Department of Dairy Science, Virginia Polytechnic Institute and State University, Blacksburg 24061.
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Tamis-LeMonda CS, Caughy MO, Rojas R, Bakeman R, Adamson LB, Pacheco D, Owen MT, Suma K, Pace A. Culture, parenting, and language: Respeto in Latine mother-child interactions. Soc Dev 2021; 29:689-712. [PMID: 34108821 DOI: 10.1111/sode.12430] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The cultural value of respeto (respect) is central to Latine parenting. Yet, how respeto manifests in the interactions of Latine parents and their young children remains unexamined. Low-income Mexican immigrant Spanish-speaking mothers and their 2.5-year-old toddlers (N = 128) were video-recorded during play (M age = 30.2 months, SD = 0.52), and two culturally informed items of respeto were coded: parent calm authority and child affiliative obedience. Respeto related to standard ratings of mother and child interactions (e.g., maternal sensitivity and child engagement) but also captured unique features of parent-child interactions. Respeto related to mothers' and toddlers' language production and discourse during the interaction, and explained unique variance in language variables above standard ratings of mother-child interaction. This is the first effort to document a culturally salient aspect of dyadic interaction in Mexican immigrant mothers and young children and to show that respeto relates to language use during mother- child interactions.
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Affiliation(s)
| | | | - Raúl Rojas
- School of Brain and Behavioral Sciences, The University of Texas at Dallas, Richardson, TX, USA
| | - Roger Bakeman
- Department of Psychology, Georgia State University, Atlanta, GA, USA
| | - Lauren B Adamson
- Department of Psychology, Georgia State University, Atlanta, GA, USA
| | - Daniel Pacheco
- School of Brain and Behavioral Sciences, The University of Texas at Dallas, Richardson, TX, USA
| | - Margaret Tresch Owen
- School of Brain and Behavioral Sciences, The University of Texas at Dallas, Richardson, TX, USA
| | - Katharine Suma
- Department of Psychology, Georgia State University, Atlanta, GA, USA
| | - Amy Pace
- Department of Speech & Hearing Sciences, University of Washington, Seattle, WA, USA
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Adamson LB, Caughy MO, Bakeman R, Rojas R, Owen MT, Tamis-LeMonda CS, Pacheco D, Pace A, Suma K. The Quality of Mother-Toddler Communication Predicts Language and Early Literacy in Mexican-American Children from Low-Income Households. Early Child Res Q 2021; 56:167-179. [PMID: 34092911 PMCID: PMC8171586 DOI: 10.1016/j.ecresq.2021.03.006] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
This longitudinal study documents the key role of early joint engagement in the language and early literacy development of Mexican-American children from low-income households. This rapidly growing population often faces challenges as sequential Spanish-English language learners. Videos of 121 mothers and their 2.5-year-old children interacting in Spanish for 15 min were recorded in 2009-2011 in the Dallas-Fort Worth metropolitan area. Researchers reliably rated general dyadic features of joint engagement-symbol-infused joint engagement, shared routines and rituals, and fluency and connectedness-that have been found to facilitate language development in young English-speaking children. The construct respeto, a valued aspect of traditional Latino parenting, was also rated using two culturally specific items-the parent's calm authority and the child's affiliative obedience. In addition, three individual contributions-maternal sensitivity, quality of maternal language input, and quality of child language production-were assessed. General features of joint engagement at 2.5 years predicted expressive and receptive language at 3.6 years and receptive language and early literacy at 7.3 years, accounting for unique variance over and above individual contributions at 2.5 years, with some effects being stronger in girls than boys. The level of culturally specific joint engagement did not alter predictions made by general features of joint engagement. These findings highlight the importance of the quality of early communication for language and literacy success of Mexican-American children from low-income households and demonstrate that culturally specific aspects of early interactions can align well with general features of joint engagement.
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Keim JP, Daza J, Beltrán I, Balocchi OA, Pulido RG, Sepúlveda-Varas P, Pacheco D, Berthiaume R. Milk production responses, rumen fermentation, and blood metabolites of dairy cows fed increasing concentrations of forage rape (Brassica napus ssp. Biennis). J Dairy Sci 2020; 103:9054-9066. [PMID: 32773313 DOI: 10.3168/jds.2020-18785] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Accepted: 06/01/2020] [Indexed: 11/19/2022]
Abstract
The aim of this study was to determine animal performance, rumen fermentation, and health-related blood metabolites of dairy cows in mid lactation fed with increasing levels (30 and 45%) of forage rape (FR) in the diet. Twelve pregnant multiparous lactating Holstein-Friesian dairy cows were randomly allocated to 1 of 3 dietary treatments in a replicated 3 × 3 Latin square design. The experiment was divided into three 21-d periods. For the control diet, 13.0 kg (dry matter, DM) of grass silage, 3.0 kg DM of commercial concentrate, 2.7 kg of DM cold-pressed extracted canola meal, and 0.45 kg DM of solvent-extracted soybean meal were offered daily. For the other two treatments, 30 and 45% of the DM from silage, canola meal, and commercial concentrate were replaced in equal proportions with FR. Data were analyzed individually using linear and quadratic orthogonal polynomials. Ingestive behavior was altered by the inclusion of FR. We observed a linear increase in eating time at the expense of rumination time. Nevertheless, total DM intake was not affected by dietary treatments, averaging 19.5 ± 0.24 kg of DM/d. Milk yield increased linearly with increasing concentration of FR in the diet. Thus, feed efficiency of cows (kg of milk/kg of DM intake) increased linearly with the percentage of FR in the diet. Inclusion of FR in the diet had no effect on milk composition or milk sensory characteristics. Mean rumen pH of cows decreased linearly from the control to the 45% FR diet; however, dietary treatments had no effect on the daily amount of time that rumen pH was below 5.8 (252 ± 71.4), indicating no risk of subacute ruminal acidosis. Concentrations of total volatile fatty acids in the rumen and molar proportions of acetate and butyrate were increased with FR inclusion, whereas the proportion of propionate was linearly reduced. Excretion of uric acid and total purine derivatives tended to be greater for cows fed FR, which resulted in a trend toward a linear increase in estimated microbial N flow. However, N use efficiency was not affected by FR inclusion. Although differences for some hematological measures (increased white blood cell and neutrophils counts) and a quadratic response for glutamate dehydrogenase for cows fed FR in the diet (decreased with inclusion of 30% and increased with 45% in the diet) were observed, all values were within appropriate ranges for dairy cows. These results indicated that including FR to dairy cow diets, up to 45% of diet DM, improved milk production due to changes in volatile fatty acids and predicted microbial N flow and had no negative effects on dairy cow health or sensory characteristics of milk.
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Affiliation(s)
- J P Keim
- Faculty of Agricultural Sciences, Universidad Austral de Chile, Independencia 641, Valdivia 5110566, Chile.
| | - J Daza
- Faculty of Agricultural Sciences, Universidad Austral de Chile, Independencia 641, Valdivia 5110566, Chile
| | - I Beltrán
- Instituto de Investigaciones Agropecuarias, INIA Remehue, Casilla 24-O, Osorno 5290000, Chile
| | - O A Balocchi
- Faculty of Agricultural Sciences, Universidad Austral de Chile, Independencia 641, Valdivia 5110566, Chile
| | - R G Pulido
- Faculty of Veterinary Sciences, Universidad Austral de Chile, Independencia 641, Valdivia 5110566, Chile
| | - P Sepúlveda-Varas
- Faculty of Veterinary Sciences, Universidad Austral de Chile, Independencia 641, Valdivia 5110566, Chile
| | - D Pacheco
- Animal Science Group, Grasslands Research Centre, Private Bag 11008, Palmerston North 4442, New Zealand
| | - R Berthiaume
- Valacta, Dairy Centre of Expertise, 555 Blvd des Anciens-Combattants, Ste-Anne-de-Bellevue, QC H9X 3R4, Canada
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Bica R, Palarea-Albaladejo J, Kew W, Uhrin D, Pacheco D, Macrae A, Dewhurst RJ. Nuclear Magnetic Resonance to Detect Rumen Metabolites Associated with Enteric Methane Emissions from Beef Cattle. Sci Rep 2020; 10:5578. [PMID: 32221381 PMCID: PMC7101347 DOI: 10.1038/s41598-020-62485-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Accepted: 03/13/2020] [Indexed: 11/10/2022] Open
Abstract
This study presents the application of metabolomics to evaluate changes in the rumen metabolites of beef cattle fed with three different diet types: forage-rich, mixed and concentrate-rich. Rumen fluid samples were analysed by 1H-NMR spectroscopy and the resulting spectra were used to characterise and compare metabolomic profiles between diet types and assess the potential for NMR metabolite signals to be used as proxies of methane emissions (CH4 in g/kg DMI). The dataset available consisted of 128 measurements taken from 4 experiments with CH4 measurements taken in respiration chambers. Predictive modelling of CH4 was conducted by partial least squares (PLS) regression, fitting calibration models either using metabolite signals only as predictors or using metabolite signals as well as other diet and animal covariates (DMI, ME, weight, BW0.75, DMI/BW0.75). Cross-validated R2 were 0.57 and 0.70 for the two models respectively. The cattle offered the concentrate-rich diet showed increases in alanine, valerate, propionate, glucose, tyrosine, proline and isoleucine. Lower methane yield was associated with the concentrate-rich diet (p < 0.001). The results provided new insight into the relationship between rumen metabolites, CH4 production and diets, as well as showing that metabolites alone have an acceptable association with the variation in CH4 production from beef cattle.
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Affiliation(s)
- R Bica
- Scotland's Rural College, SRUC, West Mains Rd, Edinburgh, EH9 3JG, United Kingdom. .,Royal (Dick) School of Veterinary Studies and the Roslin Institute, University of Edinburgh, Easter Bush Campus, Midlothian, EH25 9RG, United Kingdom. .,AgResearch Grasslands Research Centre, Tennent Drive, 11 Dairy Farm Road, Palmerston North, 4442, New Zealand.
| | - J Palarea-Albaladejo
- Biomathematics and Statistics Scotland, JCMB, Peter Guthrie Tait Road, The King's Buildings, Edinburgh, EH9 3FD, United Kingdom
| | - W Kew
- The University of Edinburgh, EaStCHEM School of Chemistry, The King's Buildings, David Brewster Road, Edinburgh, EH9 3FJ, United Kingdom
| | - D Uhrin
- The University of Edinburgh, EaStCHEM School of Chemistry, The King's Buildings, David Brewster Road, Edinburgh, EH9 3FJ, United Kingdom
| | - D Pacheco
- AgResearch Grasslands Research Centre, Tennent Drive, 11 Dairy Farm Road, Palmerston North, 4442, New Zealand
| | - A Macrae
- Royal (Dick) School of Veterinary Studies and the Roslin Institute, University of Edinburgh, Easter Bush Campus, Midlothian, EH25 9RG, United Kingdom
| | - R J Dewhurst
- Scotland's Rural College, SRUC, West Mains Rd, Edinburgh, EH9 3JG, United Kingdom
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Castillo-Umaña M, Balocchi O, Pulido R, Sepúlveda-Varas P, Pacheco D, Muetzel S, Berthiaume R, Keim JP. Milk production responses and rumen fermentation of dairy cows supplemented with summer brassicas. Animal 2020; 14:1684-1692. [PMID: 32131931 DOI: 10.1017/s175173112000021x] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
Forage brassicas, such as summer turnip (ST; Brassica rapa) and forage rape (FR; Brassica napus), are used as supplementary crops during summer. However, studies with lactating dairy cows fed these forages are limited and report inconsistent productive responses. The aim of this study was to determine dry matter intake, rumen fermentation and milk production responses of dairy cows in mid-lactation supplemented with and without summer ('ST' or 'FR') brassicas. Twelve multiparous lactating dairy cows were randomly allocated to three dietary treatments in a replicated 3 × 3 Latin square design balanced for residual effects over three 21-day periods. The control diet consisted of 16.2 kg DM of grass silage, 2.25 kg DM of commercial concentrate and 2.25 kg DM solvent-extracted soybean meal. For the other two dietary treatments, 25% of the amounts of silage and concentrates were replaced with FR or ST. The inclusion of forage brassicas had no effects on milk production (24.2 kg cow/day average) and composition (average milk fat and protein 43.2 and 33.6 g/l, respectively). Dry matter intake was 0.98 kg and 1.12 kg lower for cows supplemented with FR and ST, respectively, resulting in a greater feed conversion efficiency (1.35 kg milk/kg DM for ST and FR v. 1.27 kg milk/kg DM for the control diet). Intraruminal pH was lower for cows supplemented with ST compared to the control diet; however, it did not decrease below pH 5.8 at any time of the day. After feeding, the concentrations of total short-chain fatty acids (SCFAs) in rumen contents increased with ST supplementation compared to the control diet. Inclusion of FR in the diet increased the molar proportion of acetate (68.5 mmol/100 mmol) in total SCFA at the expense of propionate, measured 6 h after feeding of the forage. The molar proportion of butyric acid was greater with ST and FR supplementation (13.1 and 12 mmol/100 mmol, respectively) than in control cows. The estimated microbial nitrogen (N) flow was 89.1 g/day greater when supplementing FR compared to the control diet. Based on the haematological measures, the inclusion of summer brassica forages did not affect the health status of the animals. These results indicate that mid-lactation dairy cows fed brassicas are able to maintain production despite the reduced intake, probably due to improved rumen fermentation and therefore nutrient utilization.
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Affiliation(s)
- M Castillo-Umaña
- Faculty of Agricultural Sciences, Universidad Austral de Chile, 5110566, Independencia 641, Valdivia, Chile
| | - O Balocchi
- Faculty of Agricultural Sciences, Universidad Austral de Chile, 5110566, Independencia 641, Valdivia, Chile
| | - R Pulido
- Faculty of Veterinary Sciences, Universidad Austral de Chile, 5110566, Independencia 641, Valdivia, Chile
| | - P Sepúlveda-Varas
- Faculty of Veterinary Sciences, Universidad Austral de Chile, 5110566, Independencia 641, Valdivia, Chile
| | - D Pacheco
- Animal Science Group, Grasslands Research Centre, Private Bag 11008, 4442, Palmerston North, New Zealand
| | - S Muetzel
- Animal Science Group, Grasslands Research Centre, Private Bag 11008, 4442, Palmerston North, New Zealand
| | - R Berthiaume
- Valacta, Dairy Centre of Expertise, 555 Blvd des Anciens-Combattants, QCH9X 3R4, St Anne de Bellevue, Canada
| | - J P Keim
- Faculty of Agricultural Sciences, Universidad Austral de Chile, 5110566, Independencia 641, Valdivia, Chile
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Pacheco D, Muetzel S, Lewis S, Dalley D, Bryant M, Waghorn GC. Rumen digesta and products of fermentation in cows fed varying proportions of fodder beet (Beta vulgaris) with fresh pasture or silage or straw. Anim Prod Sci 2020. [DOI: 10.1071/an18002] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Context Fodder beet (FB) is a popular feed for dairy cows in temperate climates due to its high yields, high digestibility, low nitrogen (N) content in the dry matter (DM) and convenience of feeding (grazing in situ). However, the risk of ruminal acidosis requires research to design feeding regimes that capture these benefits without compromising animal health. Aims To understand aspects of rumen function when FB is offered in conditions representative of practical feeding in temperate pastoral systems. Methods Two indoor experiments were undertaken; one with cows in late lactation fed fresh perennial ryegrass with three proportions of FB (0, 0.23 and 0.45) and another with non-lactating cows fed pasture silage with 0.65 FB or barley straw with 0.86 FB. Measurements included rumen pH, short-chain fatty acid (SCFA) and ammonia concentrations determined at 2-h intervals, as well as daily individual cow intakes, estimates of microbial growth and rumen dynamics. Key results The inclusion of 0, 0.23 and 0.45 FB with fresh pasture in the did not affect daily DM intakes (~14.6 kg), milk yield (~10.7 kg), microbial synthesis (129 g of N/d) or fractional outflow rates of digesta (0.16/h; 11.2 L/h) of lactating cows. The non-lactating cow ration comprising 0.86 FB with straw was inappropriate and resulted in low intakes and insufficient dietary N. Microbial growth was approximately one-third of that in cows fed pasture silage with 0.65 FB. The ruminal pH reached lower values in all treatments where FB was offered. Rumen ammonia concentrations averaged 4.4 mmol/L in cows fed pasture but was sometimes undetectable in lactating cows fed 0.45 FB and in non-lactating cows. The amount of FB in the diet affected the extent of the circadian changes in molar proportions of SCFA. Conclusions Based on the results presented here, feeding fresh FB to dairy cows should not exceed ~0.4 of their DMI with pasture (late lactation), or ~0.6 of their intake with silage (non-lactating). Implications These findings could support evidence-based recommendations for FB use, considering its effects on aspects of rumen function, such as microbial protein synthesis and pH.
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de Luis DA, Pacheco D, Izaola O, Primo D, Aller R. The association of the rs670 variant of APOA1 gene with insulin resistance and lipid profile in morbid obese patients after a biliopancreatic diversion surgery. Eur Rev Med Pharmacol Sci 2019; 22:8472-8479. [PMID: 30556889 DOI: 10.26355/eurrev_201812_16547] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE A common G-to-A transition (rs670) of the Apoprotein subtype 1 APOA1 gene has been evaluated. The presence of the A allele has been related with increased activity. We investigated the role of this genetic variant (rs670) on lipoprotein levels and anthropometric parameters after biliopancreatic diversion (BPD) surgery in morbid obese patients. PATIENTS AND METHODS Sixty-three patients with morbid obesity without diabetes mellitus type 2 were enrolled. Biochemical and anthropometric evaluation were registered before and after one, two and three years follow-up. RESULTS Genotype distribution was 73% (n=46) GG, 25.6% (n=16) GA and 1.4% (n=1) AA for the rs670 polymorphism. Percent excess weight loss, anthropometric and biochemical parameters improved in both groups (GG vs. GA±AA). The decrease of fasting insulin levels at 1 years (delta: -3.7±1.4 mUI/L vs. -2.9±1.2 mUI/L; p=0.02), 2 years (delta: -4.8±0.3 mUI/L vs. -4.0±0.2 mUI/L; p=0.01) and 3 years (delta: -6.7±3.1 mUI/L vs. -3.9±2.1 mUI/L; p=0.03) was higher in A allele carriers than in non carriers. The improvement of HOMA-IR levels at 1 years (delta: -3.7±1.4 mUI/L vs. -2.9±1.2 mUI/L; p=0.02), 2 years (delta: -4.8±0.3 mUI/L vs. -4.0±0.2 mUI/L; p=0.01) and 3 years (delta: -6.7±3.1 mUI/L vs. -3.9±2.1 mUI/L; p=0.03) was also higher in A allele carriers than non-carriers. Finally, the increase of HDL-cholesterol levels at 1 years (delta: 2.2±0.6 mg/dl vs. -1.2±0.2 mg/dl; p=0.001), 2 years (delta: 2.5±0.4 mg/dl vs. 0.3±0.1 mg/dl; p=0.01) and 3 years (delta: 2.4±0.6 mg/dl vs. 0.4±2.3 mg/dl; p=0.02) was higher in A allele carriers than non-carriers. CONCLUSIONS This variant of the APOA1 gene showed important effects on HDL-cholesterol, HOMA-IR and insulin resistance after DBP for 3 years.
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Affiliation(s)
- D A de Luis
- Department of Endocrinology and Nutrition, Endocrinology and Nutrition Research Center, School of Medicine, Hospital Clinico Universitario, University of Valladolid, Valladolid, Spain.
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Mills B, Dyer N, Pacheco D, Brinkley D, Owen MT, Caughy MO. Developmental Transactions Between Self-Regulation and Academic Achievement Among Low-Income African American and Latino Children. Child Dev 2019; 90:1614-1631. [PMID: 29777541 PMCID: PMC6548688 DOI: 10.1111/cdev.13091] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
This study examined the development of emerging self-regulation (SR) skills across the preschool years and relations to academic achievement in kindergarten and first grade. SR skills of 403 low-income African American and Latino children were measured at 2&1/2, 3&1/2, and 5 years (kindergarten). Reading and math skills were measured at 5 and 6 years (first grade) using the Woodcock-Johnson. Transactional relations between SR skills and achievement outcomes were estimated with latent difference score models. Increases in set shifting predicted prospective increases in reading, but not math scores. Increases in simple response inhibition predicted prospective increases in math, but not reading scores. Application of these findings to early intervention programming and needed supports for school readiness and achievement are discussed.
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Lynch TA, Wang Y, van Brunt B, Pacheco D, Janssen PH. Modelling thermodynamic feedback on the metabolism of hydrogenotrophic methanogens. J Theor Biol 2019; 477:14-23. [PMID: 31150665 DOI: 10.1016/j.jtbi.2019.05.018] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [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: 06/14/2018] [Revised: 05/23/2019] [Accepted: 05/28/2019] [Indexed: 11/25/2022]
Abstract
The magnitude of the Gibbs free energy change of the substrate transformation that supports the growth of a microbe is decreased when the concentrations of the substrates are decreased and when the concentrations of the products of metabolism are increased. Microbes require a supply of ATP for cell maintenance and growth, and coupling the transformation of substrates to products with the formation of ATP also decreases the magnitude of the Gibbs free energy change. Here we include these three thermodynamic controllers (substrate and product concentration, and ATP formation) in a model of substrate transformation by hydrogenotrophic methanogens that results in a number of realistic behaviours. First, a threshold for substrate use emerges, below which the methanogen cannot metabolise its substrate. Under this model, microbes that capture more of the Gibbs free energy change from substrate transformation in the form of ATP have greater thresholds for their substrate, in line with observations of actual microbes. Second, an apparent saturation constant emerges that is controlled by the thermodynamics of the reaction. This increases with increasing ATP synthesis per substrate, so that methanogens that conserve more ATP grow faster at higher substrate concentrations, but are less competitive at low substrate concentrations. As a result, simply changing the ATP yield (moles of ATP per mole of substrate) results in methanogens with differing ecological strategies through thermodynamic impacts on their metabolism. Third, end-product inhibition through thermodynamic feedback can limit the growth of microbes, and those that capture more ATP per substrate are limited by smaller product concentrations than those that capture less ATP.
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Affiliation(s)
- T A Lynch
- Institute of Fundamental Sciences, Massey University, Palmerston North 4442, New Zealand
| | - Y Wang
- Institute of Fundamental Sciences, Massey University, Palmerston North 4442, New Zealand; AgResearch, Grasslands Research Centre, Palmerston North 4442, New Zealand
| | - B van Brunt
- Institute of Fundamental Sciences, Massey University, Palmerston North 4442, New Zealand
| | - D Pacheco
- AgResearch, Grasslands Research Centre, Palmerston North 4442, New Zealand
| | - P H Janssen
- AgResearch, Grasslands Research Centre, Palmerston North 4442, New Zealand.
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Arjona-Sanchez A, Rodriguez-Ortiz L, Baratti D, Schneider MA, Gutiérrez-Calvo A, García-Fadrique A, Tuynman JB, Cascales-Campos PA, Martín VC, Morales R, Salti GI, Arteaga X, Pacheco D, Alonso-Gomez J, Yalkin O, Villarejo-Campos P, Sanchez-Hidalgo JM, Casado-Adam A, Cosano-Alvarez A, Rufian-Peña S, Briceño J. RAS Mutation Decreases Overall Survival After Optimal Cytoreductive Surgery and Hyperthermic Intraperitoneal Chemotherapy of Colorectal Peritoneal Metastasis: A Modification Proposal of the Peritoneal Surface Disease Severity Score. Ann Surg Oncol 2019; 26:2595-2604. [PMID: 31111351 DOI: 10.1245/s10434-019-07378-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Indexed: 11/18/2022]
Abstract
BACKGROUND Cytoreductive surgery (CRS) and hyperthermic intraperitoneal chemotherapy (HIPEC) are currently the most accepted treatment for peritoneal metastases from colorectal cancer. Restrictive selection criteria are essential to obtain the best survival benefits for this complex procedure. The most widespread score for patient selection, the peritoneal surface disease severity score (PSDSS), does not include current biological factors that are known to influence on prognosis. We investigated the impact of including RAS mutational status in the selection criteria for these patients. METHODS We studied the risk factors for survival by multivariate analysis using a prospective database of consecutive patients with carcinomatosis from colorectal origin treated by CRS and HIPEC in our unit from 2009 to 2017. The risk factors obtained were validated in a multicentre, international cohort, including a total of 520 patients from 15 different reference units. RESULTS A total of 77 patients were selected for local análisis. Only RAS mutational status (HR: 2.024; p = 0.045) and PSDSS stage (HR: 2.90; p = 0.009) were shown to be independent factors for overall survival. Early PSDSS stages I and II associated to RAS mutations impaired their overall survival with no significant differences with PSDSS stage III overall survival (p > 0.05). These results were supported by the international multicentre validation. CONCLUSIONS By including RAS mutational status, we propose an updated RAS-PSDSS score that outperforms PSDSS alone providing a quick and feasible preoperative assessment of the expected overall survival for patients with carcinomatosis from colorectal origin undergone to CRS + HIPEC.
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Affiliation(s)
- A Arjona-Sanchez
- Oncologic and Pancreatic Surgery Unit, University Hospital Reina Sofıa, Córdoba, Spain. .,Maimonides Biomedical Research Institute of Cordoba (IMIBIC), University of Cordoba, University Hospital Reina Sofıa, Córdoba, Spain.
| | - L Rodriguez-Ortiz
- Oncologic and Pancreatic Surgery Unit, University Hospital Reina Sofıa, Córdoba, Spain
| | - D Baratti
- Peritoneal Surface Malignancy Program, Department of Surgery, Fondazione IRCCS Instituto Nazionale Tumori, Milan, Italy
| | - M A Schneider
- Department of Surgery and Transplantation, University Hospital of Zurich, Zurich, Switzerland
| | - A Gutiérrez-Calvo
- Surgery Department, Unit of Peritoneal Oncologic Surgery, Hospital Príncipe de Asturias, Alcalá de Henares, Madrid, Spain
| | - A García-Fadrique
- Department of Surgery, Instituto Valenciano de Oncología, Valencia, Spain
| | - J B Tuynman
- Department of Medical Oncology, VU University Medical Center, Amsterdam, The Netherlands
| | - P A Cascales-Campos
- Departamento De Cirugía General, Unidad De Cirugía De La Carcinomatosis Peritoneal, Virgen De La Arrixaca University Hospital, Murcia, Spain
| | - V Concepción Martín
- Unit of Peritoneal Oncologic Surgery and Colorectal Surgery, Hospital University Nuestra Señora de la Candelaria, Tenerife, Spain
| | - R Morales
- Unit of Oncologic and Pancreatic Surgery, Hospital Son Spaces, Palma de Mallorca, Spain
| | - G I Salti
- Division of Surgical Oncology, The University of Illinois at Chicago Hospital and Health Sciences System, Chicago, IL, USA
| | - X Arteaga
- Department of Surgery, Donostia Hospital, San Sebastián, Spain
| | - D Pacheco
- Gastroenterology Service, Liver Transplantation Unit, Rio Hortega Hospital, Valladolid, Spain
| | - J Alonso-Gomez
- Department of Surgery, H.U. Gran Canaria Dr. Negrín, Canarias, Spain
| | - O Yalkin
- Department of Surgical Oncology, Ankara University Faculty of Medicine, Ankara, Turkey
| | - P Villarejo-Campos
- Department of Surgical Oncology, University Hospital Ciudad Real, Ciudad Real, Spain
| | - J M Sanchez-Hidalgo
- Oncologic and Pancreatic Surgery Unit, University Hospital Reina Sofıa, Córdoba, Spain.,Maimonides Biomedical Research Institute of Cordoba (IMIBIC), University of Cordoba, University Hospital Reina Sofıa, Córdoba, Spain
| | - A Casado-Adam
- Oncologic and Pancreatic Surgery Unit, University Hospital Reina Sofıa, Córdoba, Spain.,Maimonides Biomedical Research Institute of Cordoba (IMIBIC), University of Cordoba, University Hospital Reina Sofıa, Córdoba, Spain
| | - A Cosano-Alvarez
- Oncologic and Pancreatic Surgery Unit, University Hospital Reina Sofıa, Córdoba, Spain
| | - S Rufian-Peña
- Oncologic and Pancreatic Surgery Unit, University Hospital Reina Sofıa, Córdoba, Spain.,Maimonides Biomedical Research Institute of Cordoba (IMIBIC), University of Cordoba, University Hospital Reina Sofıa, Córdoba, Spain
| | - J Briceño
- Oncologic and Pancreatic Surgery Unit, University Hospital Reina Sofıa, Córdoba, Spain.,Maimonides Biomedical Research Institute of Cordoba (IMIBIC), University of Cordoba, University Hospital Reina Sofıa, Córdoba, Spain
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Waghorn GC, Law N, Bryant M, Pacheco D, Dalley D. Digestion and nitrogen excretion by Holstein–Friesian cows in late lactation offered ryegrass-based pasture supplemented with fodder beet. Anim Prod Sci 2019. [DOI: 10.1071/an18018] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Recent changes in New Zealand dairying have included incorporation of fodder beet (FB) into rations. The present trial explored the impact of substituting different proportions of ryegrass-based pasture with FB for cows fed ad libitum in late lactation. The objective was to measure effects of FB on intake, digestion and urinary nitrogen (N) excretion using 16 Holstein–Friesian cows with a permanent rumen fistula. Before the 9-day indoor measurement period, cows were adapted to feeding 0%, 20%, 40% or 60% FB (bulbs and tops) with medium quality ryegrass-based pasture (191 g CP and 517 g neutral detergent fibre (aNDF)/kg DM; DM digestibility 0.634) over 2 weeks. However, it became apparent that a diet of 60% FB was detrimental to cow health, with two cows developing acidosis. The allocation of FB was reduced and the actual intakes were 23% and 45% of DM intake during the trial. Feeding FB substantially reduced N intake and urinary N excretion. The lower level (23%) of FB resulted in greater DM digestibility, albeit with a small reduction in N and aNDF digestibility. However, the higher level (45%) of FB reduced N and aNDF digestibility by 7.1 and 12.1 percentage units respectively, relative to pasture. Daily creatinine excretion was lower than published measurements from cattle fed dry diets, and circadian variation in urinary N:creatinine ratios suggests a need for caution when attempting to predict daily urinary N excretion from spot samples.
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Garcia TA, Pacheco D, Villagrana A, Aguilar F, Aragon E. Poster 17: Relationship Between Disability, Age, Body Mass Index, Balance and Aerobic Capacity in Elderly Patients. PM R 2018. [DOI: 10.1016/j.pmrj.2018.08.056] [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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Abstract
We explored the influence of space on the organisation of items in long-term memory. In two experiments, we asked our participants to explore a virtual environment and memorise discrete items presented at specific locations. Memory for those items was later on tested in immediate (T1) and 24 hours delayed (T2) free recall tests, in which subjects were asked to recall as many items as possible in any order. In experiment 2, we further examined the contribution of active and passive navigation in recollection dynamics. Results across experiments revealed a significant tendency for participants to consecutively recall items that were encountered in proximate locations during learning. Moreover, the degree of spatial organisation and the total number of items recalled were positively correlated in the immediate and the delayed tests. Results from experiment 2 indicated that the spatial clustering of items was independent of navigation types. Our results highlight the long-term stability of spatial clustering effects and their correlation with recall performance, complementing previous results collected in immediate or briefly delayed tests.
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Affiliation(s)
- Daniel Pacheco
- a Laboratory of Synthetic Perceptive, Emotive and Cognitive Systems, Center of Autonomous Systems and Neurorobotics , Universitat Pompeu Fabra , Barcelona , Spain
| | - Paul F M J Verschure
- a Laboratory of Synthetic Perceptive, Emotive and Cognitive Systems, Center of Autonomous Systems and Neurorobotics , Universitat Pompeu Fabra , Barcelona , Spain.,b ICREA, Institució Catalana de Recerca i Estudis Avançats, Passeig Lluís Companys , Barcelona , Spain.,c Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology , Barcelona , Spain
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Pacheco D, Owen M, Caughy M. Growth in inhibitory control among low-income, ethnic-minority preschoolers: A group-based modeling approach. Early Child Res Q 2017; 42:247-255. [PMID: 29795711 PMCID: PMC5961734 DOI: 10.1016/j.ecresq.2017.10.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The emergence of self-regulation skills such as inhibitory control in children is an important developmental process associated with adjustment across multiple domains. Individual differences in inhibitory control are associated with family socioeconomic status but have not been studied in relation to variations in risk found within a low-income (i.e., high risk) sample (N = 407). Using a group-based modeling approach, change in inhibitory control was examined from 30 to 42 months of age in a sample of low-income Hispanic and African-American children. Patterns of change in inhibitory control were examined in relation to cumulative risk and child externalizing behavior using the Child Behavior Checklist measured at 42 months. A three-group solution was identified as optimally fitting the data, representing patterns of change in inhibitory control: a normative group, exhibiting increasing inhibitory control (48%); a low-stable group (40%); and a high-stable group (12%). Group membership did not differ by child ethnicity or gender. Higher cumulative risk was found among the children in the low-stable group than in the other groups. Mothers reported more externalizing problems at 42 months for children in the low-stable group than in the other groups, even controlling for the effect of cumulative risk. Intervention and policy implications are discussed.
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Affiliation(s)
- Daniel Pacheco
- The University of Texas at Dallas, Psychological Sciences Program, 800 W. Campbell Road, GR41, Richardson, TX, 75080, United States
| | - Margaret Owen
- The University of Texas at Dallas, Psychological Sciences Program, 800 W. Campbell Road, GR41, Richardson, TX, 75080, United States
| | - Margaret Caughy
- The University of Georgia, Department of Human Development and Family Science, 202 Family Science Center II (House D), 405 Sanford Drive, Athens, GA, 30602, United States
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Abstract
We designed a novel experiment to investigate the modulation of human recognition memory by environmental context. Human participants were asked to navigate through a four-arm Virtual Reality (VR) maze in order to find and memorize discrete items presented at specific locations in the environment. They were later on tested on their ability to recognize items as previously presented or new. By manipulating the spatial position of half of the studied items during the testing phase of our experiment, we could assess differences in performance related to the congruency of environmental information at encoding and retrieval. Our results revealed that spatial context had a significant effect on the quality of memory. In particular, we found that recognition performance was significantly better in trials in which contextual information was congruent as opposed to those in which it was different. Our results are in line with previous studies that have reported spatial-context effects in recognition memory, further characterizing their magnitude under ecologically valid experimental conditions.
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Affiliation(s)
- Daniel Pacheco
- Synthetic, Perceptive, Emotive and Cognitive Systems Research Group (SPECS), Department of Information and Communications Technologies, Pompeu Fabra UniversityBarcelona, Spain
| | - Marti Sánchez-Fibla
- Synthetic, Perceptive, Emotive and Cognitive Systems Research Group (SPECS), Department of Information and Communications Technologies, Pompeu Fabra UniversityBarcelona, Spain
| | - Armin Duff
- Synthetic, Perceptive, Emotive and Cognitive Systems Research Group (SPECS), Department of Information and Communications Technologies, Pompeu Fabra UniversityBarcelona, Spain
| | - Paul F M J Verschure
- Synthetic, Perceptive, Emotive and Cognitive Systems Research Group (SPECS), Department of Information and Communications Technologies, Pompeu Fabra UniversityBarcelona, Spain.,Catalan Institution for Research and Advanced Studies (ICREA)Barcelona, Spain.,Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and TechnologyBarcelona, Spain
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Vibart RE, Tavendale M, Otter D, Schwendel BH, Lowe K, Gregorini P, Pacheco D. Milk production and composition, nitrogen utilization, and grazing behavior of late-lactation dairy cows as affected by time of allocation of a fresh strip of pasture. J Dairy Sci 2017; 100:5305-5318. [PMID: 28501401 DOI: 10.3168/jds.2016-12413] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [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: 12/06/2016] [Accepted: 03/21/2017] [Indexed: 11/19/2022]
Abstract
Eighty late-lactation dairy cows were used to examine the effects of allocating a new pasture strip of a sward based on ryegrass (Lolium perenne L.) in the morning (a.m.; ∼0730 h) or in the afternoon (p.m.; ∼1530 h) on milk production and composition, nitrogen (N) utilization, and grazing behavior. Cows grazed the same pasture strips for 24 h and were offered the same daily herbage allowance. Herbage composition differed among treatments; p.m. herbage had greater dry matter (DM; 22.7 vs. 19.9%), organic matter (OM; 89.5 vs. 88.9%), and water-soluble carbohydrate (10.9 vs. 7.6%) concentrations and lesser crude protein (20.5 vs. 22.2%) and neutral detergent fiber (48.8 vs. 50.4%) concentrations compared with a.m. herbage. Total fatty acids (FA), α-linolenic acid, and polyunsaturated FA (PUFA) were greater in a.m. herbage, whereas monounsaturated FA were greater in p.m. herbage. Estimates of herbage DM intake did not differ among treatments. Daily milk yields and milk fat and milk protein concentrations were similar among treatments, whereas milk fat (684 vs. 627 g/cow), milk protein (545 vs. 505 g/cow), and milk solids (milk fat + milk protein) yields (1,228 vs. 1,132 g/cow) tended to be greater for cows on p.m. herbage. Rumenic acid and total PUFA in milk were greater for cows on a.m. herbage, whereas oleic acid was greater for cows on p.m. herbage. Estimates of urinary N excretion (g/d) did not differ among treatments, but urinary N concentrations were greater for cows on a.m. herbage (5.85 vs. 5.36 g/L). Initial herbage mass (HM) available (kg of DM/ha) and instantaneous HM disappearance rates (kg of DM/ha and kg of DM/h) did not differ, but fractional disappearance rates (0.56 vs. 0.74 per hour for a.m. vs. p.m., respectively) differed. Under the current conditions, timing of pasture strip allocation altered the herbage nutrient supply to cows; allocating a fresh strip of pasture later in the day resulted in moderate increases in milk and milk solids yields in late-lactation dairy cows. Conversely, a greater concentration of precursor FA in a.m. herbage resulted in a greater concentration of beneficial FA in milk, compared with cows on p.m. herbage.
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Affiliation(s)
- R E Vibart
- AgResearch, Grasslands Research Centre, Tennent Drive, Palmerston North 4442, New Zealand
| | - M Tavendale
- AgResearch, Grasslands Research Centre, Tennent Drive, Palmerston North 4442, New Zealand
| | - D Otter
- Center for Dairy Research, College of Agriculture and Life Sciences, University of Wisconsin-Madison, Madison 53706
| | - B H Schwendel
- AgResearch, Grasslands Research Centre, Tennent Drive, Palmerston North 4442, New Zealand
| | - K Lowe
- AgResearch, Grasslands Research Centre, Tennent Drive, Palmerston North 4442, New Zealand
| | - P Gregorini
- Agriculture and Life Sciences, Lincoln University, Lincoln 7647, Christchurch, New Zealand
| | - D Pacheco
- AgResearch, Grasslands Research Centre, Tennent Drive, Palmerston North 4442, New Zealand.
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Cosgrove GP, Jonker A, Lowe KA, Taylor PS, Pacheco D. Diurnal variation in urine nitrogen and creatinine concentrations from lactating cows grazing ryegrass-dominant pasture in autumn and late spring–summer. Anim Prod Sci 2017. [DOI: 10.1071/an16709] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
In dairy production systems based on grazed pasture, urine patches are the main source of nitrogen (N) losses via leaching and gaseous emission pathways. The volume and N concentration of urine influences the amount of N in a urine patch. We conducted systematic urine sampling to determine the diurnal variation in concentrations of N and creatinine (a proxy for urine volume), and the N : creatinine ratio, to identify the sampling required for accurately estimating the daily mean concentrations of N and creatinine. Nine groups (n = 6) of multiparous Friesian and Friesian × Jersey cows in autumn (220 ± 26 days-in-milk, milked twice daily) and nine groups (n = 6) in late spring–summer (228 ± 24 days-in-milk, milked once daily) were sequentially withdrawn from the farm herd at approximately weekly intervals and each group was offered a fresh allocation of ryegrass-dominant pasture twice daily after milking for 3 days (including at the equivalent time in the afternoon in late spring–summer when they were milked once daily). For each of the 18 different groups of cows, individual urine samples were collected on Day 3 at 1100 hours, 1500 hours (afternoon milking), 1800 hours and 0700 hours (the following morning milking), and, subsequently, analysed for total N and creatinine concentrations. In autumn, urine-N concentrations were higher (P = 0.0002) at 1800 hours (5.8 g N/L) than they were at 1500 hours or 0700 hours (mean of 4.2 g N/L). In late spring–summer, the concentrations were higher (P < 0.001) at 1100 hours (8.0 g N/L) than they were at 1500 hours, 1800 hours or 0700 hours (mean of 6.3 g N/L). The urine N : creatinine ratio was 214 mol/mol in autumn and 148 mol/mol in late spring–summer, but did not vary among sampling times during the day. The highest concentrations of N were in urine samples collected ~3 h post-allocation of fresh feed when cows had grazed actively and consumed the majority of the herbage available. For accurate estimates of the daily mean urine N concentration, sample collections should be timed to encompass this diurnal variation. For the N : creatinine ratio, which was more stable through the day, the timing of sample collection is less important for estimating a daily mean.
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Martirani-Von Abercron SM, Pacheco D, Benito-Santano P, Marín P, Marqués S. Polycyclic Aromatic Hydrocarbon-Induced Changes in Bacterial Community Structure under Anoxic Nitrate Reducing Conditions. Front Microbiol 2016; 7:1775. [PMID: 27877167 PMCID: PMC5099901 DOI: 10.3389/fmicb.2016.01775] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [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: 07/05/2016] [Accepted: 10/21/2016] [Indexed: 11/13/2022] Open
Abstract
Although bacterial anaerobic degradation of mono-aromatic compounds has been characterized in depth, the degradation of polycyclic aromatic hydrocarbons (PAHs) such as naphthalene has only started to be understood in sulfate reducing bacteria, and little is known about the anaerobic degradation of PAHs in nitrate reducing bacteria. Starting from a series of environments which had suffered different degrees of hydrocarbon pollution, we used most probable number (MPN) enumeration to detect and quantify the presence of bacterial communities able to degrade several PAHs using nitrate as electron acceptor. We detected the presence of a substantial nitrate reducing community able to degrade naphthalene, 2-methylnaphthalene (2MN), and anthracene in some of the sites. With the aim of isolating strains able to degrade PAHs under denitrifying conditions, we set up a series of enrichment cultures with nitrate as terminal electron acceptor and PAHs as the only carbon source and followed the changes in the bacterial communities throughout the process. Results evidenced changes attributable to the imposed nitrate respiration regime, which in several samples were exacerbated in the presence of the PAHs. The presence of naphthalene or 2MN enriched the community in groups of uncultured and poorly characterized organisms, and notably in the Acidobacteria uncultured group iii1-8, which in some cases was only a minor component of the initial samples. Other phylotypes selected by PAHs in these conditions included Bacilli, which were enriched in naphthalene enrichments. Several nitrate reducing strains showing the capacity to grow on PAHs could be isolated on solid media, although the phenotype could not be reproduced in liquid cultures. Analysis of known PAH anaerobic degradation genes in the original samples and enrichment cultures did not reveal the presence of PAH-related nmsA-like sequences but confirmed the presence of bssA-like genes related to anaerobic toluene degradation. Altogether, our results suggest that PAH degradation by nitrate reducing bacteria may require the contribution of different strains, under culture conditions that still need to be defined.
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Affiliation(s)
| | - Daniel Pacheco
- Estación Experimental del Zaidín, Department of Environmental Protection, Consejo Superior de Investigaciones Científicas Granada, Spain
| | - Patricia Benito-Santano
- Estación Experimental del Zaidín, Department of Environmental Protection, Consejo Superior de Investigaciones Científicas Granada, Spain
| | - Patricia Marín
- Estación Experimental del Zaidín, Department of Environmental Protection, Consejo Superior de Investigaciones Científicas Granada, Spain
| | - Silvia Marqués
- Estación Experimental del Zaidín, Department of Environmental Protection, Consejo Superior de Investigaciones Científicas Granada, Spain
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Azevedo C, Pacheco D, Soares L, Moitoso M, Maldonado J, Guix R, Simões J. Prevalence of bovine milk pathogens in Azorean pastures: mobile versus fixed milking machines. Vet Rec Open 2016; 3:e000181. [PMID: 27843558 PMCID: PMC5093392 DOI: 10.1136/vetreco-2016-000181] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [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: 04/07/2016] [Revised: 08/03/2016] [Accepted: 09/20/2016] [Indexed: 11/05/2022] Open
Abstract
The aims of the present study were (1) to evaluate the influence of using mobile (n=47) or fixed (n=45) milking machines in Azorean herds on the apparent prevalence of several milk pathogens in bulk tank milk (BTM) and (2) to determine whether separated subclinical mastitic cows can serve, in real time, as predictors of milk pathogen prevalence for the remaining animals at the herd level. The use of a mobile or fixed milking machine influenced (P≤0.05) the prevalence of Staphylococcus aureus (72.3 per cent; n=34 v 51.1 per cent; n=23, respectively) and Klebsiella species (46.8 per cent; n=22 v 26.7 per cent; n=12, respectively). S aureus (95 per cent CI OR 1.1 to 6.0) and Klebsiella species (95 per cent CI OR 1.0 to 5.8) were 2.5 times more likely to increase in the BTM of herds using mobile milking machines. The prevalence of coagulase-negative staphylococci (100 per cent; n=92), Escherichia coli (75.0 per cent), Corynebacterium bovis (57.6 per cent), Enterococcus species (55.4 per cent), Streptococcus dysgalactiae (51.1 per cent), Streptococcus uberis (41.3 per cent), Actinomyces pyogenes or Peptostreptococcus indolicus (41.3 per cent) and Streptococcus agalactiae (32.6 per cent) in BTM remained similar among the herds. κ coefficients were always <0.70, indicating intra-herd disagreement of the prevalence of milk pathogens between BTM and separated milking cows. Milking hygiene should be improved in pastures, focusing specifically on herds that use a mobile milking machine. The segregated cows at milking time are not good predictors of milk pathogens in BTM.
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Affiliation(s)
- C Azevedo
- HIPRA, Avenida La Selva , Girona , Spain
| | - D Pacheco
- University of Évora. Largo dos colegiais 2 , Évora , Portugal
| | - L Soares
- São Miguel Young Farmers Association , São Miguel, Azores , Portugal
| | - M Moitoso
- São Miguel Young Farmers Association , São Miguel, Azores , Portugal
| | | | - R Guix
- HIPRA, Avenida La Selva , Girona , Spain
| | - J Simões
- University of Trás-os-Montes e Alto Douro , Vila Real , Portugal
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Jonker A, Lowe K, Kittelmann S, Janssen PH, Ledgard S, Pacheco D. Methane emissions changed nonlinearly with graded substitution of alfalfa silage with corn silage and corn grain in the diet of sheep and relation with rumen fermentation characteristics in vivo and in vitro1,2. J Anim Sci 2016; 94:3464-3475. [DOI: 10.2527/jas.2015-9912] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [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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Singh K, Leath SR, Henderson HV, Molenaar AJ, Watson TJ, Pacheco D, McMahon CD. Ultrasonography to investigate the effect of supplementing whole milk with complex carbohydrates and specific amino acids on curd retention in the abomasum of dairy calves. N Z Vet J 2016; 64:288-92. [PMID: 27146085 DOI: 10.1080/00480169.2016.1184996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
AIM To determine whether the retention time of curd in the abomasum of calves was influenced by supplementing milk with a plant-derived carbohydrate and amino acid supplement, evaluated non-invasively using ultrasonography. METHODS Female dairy calves aged between 2-6 days of age were sourced from a commercial farm in March 2013. All calves were fed whole milk until weaning (4 L per day); 21 calves were supplemented with a probiotic until 18 days of age, and thereafter with a plant-derived complex carbohydrate and amino acid supplement until weaning, and 22 calves were just fed whole milk. Treatment groups were balanced for age, weight and breed. At 9-14, 24-29 and 52-57 days of age, the abomasum of each calf was examined using ultrasonography immediately before and after feeding, 1 and 2 hours after feeding, and then at 30 minute intervals until curd was no longer visible in the abomasum. Abomasal volume and curd size were recorded to assess retention time of curd in the abomasum. RESULTS At 9-14 days of age, mean retention time of curd in the abomasum was similar (4.6 hours) in both groups. At 24-29 days of age, when the supplemented calves had been receiving the supplement for approximately 10 days, mean curd retention time was longer by 1.4 (SE 0.28) hours in supplemented compared with unsupplemented calves (p<0.001). At 52-57 days of age, mean retention time was longer by 0.7 (SE 0.34) hours compared to unsupplemented calves (p=0.05). CONCLUSION Using ultrasonography, changes in abomasal content could be followed non-invasively over time and it was demonstrated that the plant-derived complex carbohydrate supplement increased the curd retention time in the abomasum. We speculate that the increased retention time enables an increased availability of nutrients following a more complete digestion of milk, thereby improving animal performance.
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Affiliation(s)
- K Singh
- a AgResearch Ltd, Ruakura Research Centre , Private Bag 3123, Hamilton 3240 , New Zealand
| | - S R Leath
- a AgResearch Ltd, Ruakura Research Centre , Private Bag 3123, Hamilton 3240 , New Zealand
| | - H V Henderson
- a AgResearch Ltd, Ruakura Research Centre , Private Bag 3123, Hamilton 3240 , New Zealand
| | - A J Molenaar
- b AgResearch Ltd, Grasslands Research Centre , Private Bag 11008, Palmerston North 4442 , New Zealand
| | - T J Watson
- a AgResearch Ltd, Ruakura Research Centre , Private Bag 3123, Hamilton 3240 , New Zealand
| | - D Pacheco
- b AgResearch Ltd, Grasslands Research Centre , Private Bag 11008, Palmerston North 4442 , New Zealand
| | - C D McMahon
- a AgResearch Ltd, Ruakura Research Centre , Private Bag 3123, Hamilton 3240 , New Zealand
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Wang M, Wang R, Janssen PH, Zhang XM, Sun XZ, Pacheco D, Tan ZL. Sampling procedure for the measurement of dissolved hydrogen and volatile fatty acids in the rumen of dairy cows1. J Anim Sci 2016; 94:1159-69. [DOI: 10.2527/jas.2015-9658] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [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)
- M. Wang
- Key Laboratory for Agro-Ecological Processes in Subtropical Region, Hunan Research Center of Livestock and Poultry Sciences, South Central Experimental Station of Animal Nutrition and Feed Science in the Ministry of Agriculture, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan 410125, China
| | - R. Wang
- Key Laboratory for Agro-Ecological Processes in Subtropical Region, Hunan Research Center of Livestock and Poultry Sciences, South Central Experimental Station of Animal Nutrition and Feed Science in the Ministry of Agriculture, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan 410125, China
| | - P. H. Janssen
- AgResearch Limited, Grasslands Research Centre, Private Bag 11008, Palmerston North, New Zealand
| | - X. M. Zhang
- Key Laboratory for Agro-Ecological Processes in Subtropical Region, Hunan Research Center of Livestock and Poultry Sciences, South Central Experimental Station of Animal Nutrition and Feed Science in the Ministry of Agriculture, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan 410125, China
| | - X. Z. Sun
- AgResearch Limited, Grasslands Research Centre, Private Bag 11008, Palmerston North, New Zealand
| | - D. Pacheco
- AgResearch Limited, Grasslands Research Centre, Private Bag 11008, Palmerston North, New Zealand
| | - Z. L. Tan
- Key Laboratory for Agro-Ecological Processes in Subtropical Region, Hunan Research Center of Livestock and Poultry Sciences, South Central Experimental Station of Animal Nutrition and Feed Science in the Ministry of Agriculture, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan 410125, China
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Souza GN, Kersting N, Krum-Santos AC, Santos ASP, Furtado GV, Pacheco D, Gonçalves TA, Saute JA, Schuler-Faccini L, Mattos EP, Saraiva-Pereira ML, Jardim LB. Spinocerebellar ataxia type 3/Machado-Joseph disease: segregation patterns and factors influencing instability of expanded CAG transmissions. Clin Genet 2016; 90:134-40. [PMID: 26693702 DOI: 10.1111/cge.12719] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2015] [Revised: 12/16/2015] [Accepted: 12/17/2015] [Indexed: 11/30/2022]
Abstract
Controversies about Mendelian segregation and CAG expansion (CAGexp) instabilities during meiosis in spinocerebellar ataxia type 3/Machado-Joseph disease (SCA3/MJD) need clarification. Additional evidence about these issues was obtained from the cohort of all SCA3/MJD individuals living in South Brazil. A survey was carried out to update information registered since 2001. Deaths were checked with the Public Information System, and data was made anonymous. Anticipation and delta-CAGexp from parent-offspring pairs, and delta-CAGexp between siblings were obtained. One hundred and fifty-nine families (94% of the entire registry) were retrieved, comprising 3725 living individuals as of 2015, 625 of these being symptomatic. Minimal prevalence was 6:100,000. Carriers of a CAGexp represented 65.6% of sibs in the genotyped offspring (p < 0.001). Median instability was larger among paternal than maternal transmissions, and instabilities correlated with anticipation (r = 0.38; p = 0.001). Age of the parent correlated to delta-CAGexp among 115 direct parent-offspring CAGexp transmissions (ρ = 0.23, p = 0.014). In 98 additional kindreds, the delta-CAGexp between 269 siblings correlated with their delta-of-age (ρ = 0.27, p < 0.0001). SCA3/MJD was associated with a segregation distortion favoring the expanded allele in our cohort. Instability of expansion during meiosis was weakly influenced by the age of the transmitting parent at the time of conception.
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Affiliation(s)
- G N Souza
- Programa de Pós-Graduação em Ciências Médicas, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - N Kersting
- Programa de Pós-Graduação em Ciências Médicas, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - A C Krum-Santos
- Faculdade de Medicina, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - A S P Santos
- Faculdade de Medicina, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - G V Furtado
- Programa de Pós-Graduação em Genética e Biologia Molecular, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Laboratório de Identificação Genética, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | - D Pacheco
- Faculdade de Serviço Social, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - T A Gonçalves
- Escola de Enfermagem, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - J A Saute
- Laboratório de Identificação Genética, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil.,Serviço de Genética Médica, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | - L Schuler-Faccini
- Programa de Pós-Graduação em Genética e Biologia Molecular, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Serviço de Genética Médica, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil.,Departamento de Genética e Biologia Molecular, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Instituto de Genética Médica Populacional (INAGEMP), Porto Alegre, Brazil
| | - E P Mattos
- Programa de Pós-Graduação em Genética e Biologia Molecular, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Laboratório de Identificação Genética, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | - M L Saraiva-Pereira
- Programa de Pós-Graduação em Genética e Biologia Molecular, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Laboratório de Identificação Genética, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil.,Serviço de Genética Médica, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil.,Instituto de Genética Médica Populacional (INAGEMP), Porto Alegre, Brazil.,Departamento de Bioquímica, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - L B Jardim
- Programa de Pós-Graduação em Ciências Médicas, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Faculdade de Medicina, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Programa de Pós-Graduação em Genética e Biologia Molecular, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Laboratório de Identificação Genética, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil.,Serviço de Genética Médica, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil.,Instituto de Genética Médica Populacional (INAGEMP), Porto Alegre, Brazil.,Departamento de Medicina Interna, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
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Rodríguez-Hernández A, Navarro-Villarán E, González R, Pereira S, Soriano-De Castro LB, Sarrias-Giménez A, Barrera-Pulido L, Álamo-Martínez JM, Serrablo-Requejo A, Blanco-Fernández G, Nogales-Muñoz A, Gila-Bohórquez A, Pacheco D, Torres-Nieto MA, Serrano-Díaz-Canedo J, Suárez-Artacho G, Bernal-Bellido C, Marín-Gómez LM, Barcena JA, Gómez-Bravo MA, Padilla CA, Padillo FJ, Muntané J. Regulation of cell death receptor S-nitrosylation and apoptotic signaling by Sorafenib in hepatoblastoma cells. Redox Biol 2015; 6:174-182. [PMID: 26233703 PMCID: PMC4534573 DOI: 10.1016/j.redox.2015.07.010] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [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] [Subscribe] [Scholar Register] [Received: 06/18/2015] [Revised: 07/17/2015] [Accepted: 07/20/2015] [Indexed: 12/15/2022] Open
Abstract
Nitric oxide (NO) plays a relevant role during cell death regulation in tumor cells. The overexpression of nitric oxide synthase type III (NOS-3) induces oxidative and nitrosative stress, p53 and cell death receptor expression and apoptosis in hepatoblastoma cells. S-nitrosylation of cell death receptor modulates apoptosis. Sorafenib is the unique recommended molecular-targeted drug for the treatment of patients with advanced hepatocellular carcinoma. The present study was addressed to elucidate the potential role of NO during Sorafenib-induced cell death in HepG2 cells. We determined the intra- and extracellular NO concentration, cell death receptor expression and their S-nitrosylation modifications, and apoptotic signaling in Sorafenib-treated HepG2 cells. The effect of NO donors on above parameters has also been determined. Sorafenib induced apoptosis in HepG2 cells. However, low concentration of the drug (10nM) increased cell death receptor expression, as well as caspase-8 and -9 activation, but without activation of downstream apoptotic markers. In contrast, Sorafenib (10 µM) reduced upstream apoptotic parameters but increased caspase-3 activation and DNA fragmentation in HepG2 cells. The shift of cell death signaling pathway was associated with a reduction of S-nitrosylation of cell death receptors in Sorafenib-treated cells. The administration of NO donors increased S-nitrosylation of cell death receptors and overall induction of cell death markers in control and Sorafenib-treated cells. In conclusion, Sorafenib induced alteration of cell death receptor S-nitrosylation status which may have a relevant repercussion on cell death signaling in hepatoblastoma cells.
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Affiliation(s)
- A Rodríguez-Hernández
- Institute of Biomedicine of Seville (IBiS), Hospital Universitario "Virgen del Rocío"/CSIC/Universidad de Sevilla, Av. Manuel Siurot s/n, 41013 Sevilla, Spain
| | - E Navarro-Villarán
- Institute of Biomedicine of Seville (IBiS), Hospital Universitario "Virgen del Rocío"/CSIC/Universidad de Sevilla, Av. Manuel Siurot s/n, 41013 Sevilla, Spain
| | - R González
- Departament of Biochemistry and Molecular Biology, University of Cordoba, Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), 14071 Córdoba, Spain
| | - S Pereira
- Institute of Biomedicine of Seville (IBiS), Hospital Universitario "Virgen del Rocío"/CSIC/Universidad de Sevilla, Av. Manuel Siurot s/n, 41013 Sevilla, Spain
| | - L B Soriano-De Castro
- Institute of Biomedicine of Seville (IBiS), Hospital Universitario "Virgen del Rocío"/CSIC/Universidad de Sevilla, Av. Manuel Siurot s/n, 41013 Sevilla, Spain
| | - A Sarrias-Giménez
- Institute of Biomedicine of Seville (IBiS), Hospital Universitario "Virgen del Rocío"/CSIC/Universidad de Sevilla, Av. Manuel Siurot s/n, 41013 Sevilla, Spain
| | - L Barrera-Pulido
- Department of General Surgery, Hospital Universitario "Virgen del Rocío" - "Virgen Macarena"/Instituto de Biomedicina de Sevilla (IBiS)/CSIC/Universidad de Sevilla, Sevilla, Spain
| | - J M Álamo-Martínez
- Department of General Surgery, Hospital Universitario "Virgen del Rocío" - "Virgen Macarena"/Instituto de Biomedicina de Sevilla (IBiS)/CSIC/Universidad de Sevilla, Sevilla, Spain; CENTRO DE INVESTIGACIÓN BIOMÉDICA EN RED de Enfermedades Hepáticas y Digestivas (CIBERehd), Spain
| | - A Serrablo-Requejo
- Hepato-Biliary Surgery Unit, Hospital Universitario "Miguel Servet", Zaragoza, Spain
| | - G Blanco-Fernández
- Hepato-Biliary-Pancreatic and Liver Transplant Service, Hospital Universitario "Infanta Cristina", Badajoz, Spain
| | - A Nogales-Muñoz
- Department of General Surgery, Hospital Universitario "Virgen del Rocío" - "Virgen Macarena"/Instituto de Biomedicina de Sevilla (IBiS)/CSIC/Universidad de Sevilla, Sevilla, Spain
| | - A Gila-Bohórquez
- Department of General Surgery, Hospital Universitario "Virgen del Rocío" - "Virgen Macarena"/Instituto de Biomedicina de Sevilla (IBiS)/CSIC/Universidad de Sevilla, Sevilla, Spain
| | - D Pacheco
- Department of General Surgery and Department of Pathology, Hospital Universitario "Rio Hortega", Valladolid, Spain
| | - M A Torres-Nieto
- Department of Pathology, Hospital Universitario "Rio Hortega", Valladolid, Spain
| | - J Serrano-Díaz-Canedo
- Department of General Surgery, Hospital Universitario "Virgen del Rocío" - "Virgen Macarena"/Instituto de Biomedicina de Sevilla (IBiS)/CSIC/Universidad de Sevilla, Sevilla, Spain
| | - G Suárez-Artacho
- Department of General Surgery, Hospital Universitario "Virgen del Rocío" - "Virgen Macarena"/Instituto de Biomedicina de Sevilla (IBiS)/CSIC/Universidad de Sevilla, Sevilla, Spain
| | - C Bernal-Bellido
- Department of General Surgery, Hospital Universitario "Virgen del Rocío" - "Virgen Macarena"/Instituto de Biomedicina de Sevilla (IBiS)/CSIC/Universidad de Sevilla, Sevilla, Spain
| | - L M Marín-Gómez
- Department of General Surgery, Hospital Universitario "Virgen del Rocío" - "Virgen Macarena"/Instituto de Biomedicina de Sevilla (IBiS)/CSIC/Universidad de Sevilla, Sevilla, Spain
| | - J A Barcena
- Departament of Biochemistry and Molecular Biology, University of Cordoba, Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), 14071 Córdoba, Spain
| | - M A Gómez-Bravo
- Department of General Surgery, Hospital Universitario "Virgen del Rocío" - "Virgen Macarena"/Instituto de Biomedicina de Sevilla (IBiS)/CSIC/Universidad de Sevilla, Sevilla, Spain; CENTRO DE INVESTIGACIÓN BIOMÉDICA EN RED de Enfermedades Hepáticas y Digestivas (CIBERehd), Spain
| | - C A Padilla
- Departament of Biochemistry and Molecular Biology, University of Cordoba, Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), 14071 Córdoba, Spain
| | - F J Padillo
- Department of General Surgery, Hospital Universitario "Virgen del Rocío" - "Virgen Macarena"/Instituto de Biomedicina de Sevilla (IBiS)/CSIC/Universidad de Sevilla, Sevilla, Spain; CENTRO DE INVESTIGACIÓN BIOMÉDICA EN RED de Enfermedades Hepáticas y Digestivas (CIBERehd), Spain
| | - J Muntané
- Department of General Surgery, Hospital Universitario "Virgen del Rocío" - "Virgen Macarena"/Instituto de Biomedicina de Sevilla (IBiS)/CSIC/Universidad de Sevilla, Sevilla, Spain; CENTRO DE INVESTIGACIÓN BIOMÉDICA EN RED de Enfermedades Hepáticas y Digestivas (CIBERehd), Spain.
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De Luis DA, Aller R, Izaola O, Pacheco D. ROLE OF RS9939609 FTO GENE VARIANT IN WEIGHT LOSS, INSULIN RESISTANCE AND METABOLIC PARAMETERS AFTER A HIGH MONOUNSATURATED VS A HIGH POLYUNSATURATED FAT HYPOCALORIC DIETS. NUTR HOSP 2015; 32:175-81. [PMID: 26262713 DOI: 10.3305/nh.2015.32.1.9169] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Abstract
INTRODUCTION common polymorphisms (rs9939609) of the fat mass and obesity associated gene (FTO) have been linked to obesity. OBJECTIVES our aim was to investigate the role of this polymorphism on insulin resistance, metabolic changes and weight loss secondary to a high monounsaturated fat vs a high polyunsaturated fat hypocaloric diets. MATERIAL AND METHODS a sample of 233 obese subjects was enrolled in a prospective way. In the basal visit, patients were randomly allocated during 3 months to; Diet M (high monounsaturated fat hypocaloric diet) or Diet P (high polyunsaturated fat hypocaloric diet). RESULTS after treatment with two diets and in both genotypes, weight, fat mass and waist circumference decreased. Lower levels of body mass index (BMI), weight and fat mass were detected after Diet P in A allele carriers than TT genotype subjects. With the diet type P and in both genotypes (TT and AT + AA), total cholesterol levels (-15.3 + 35.1 mg/dl vs -11.6 + 32.1 mg/dl: p > 0.05) and LDL cholesterol levels (-11.5 + 34.1 mg/dl vs -8.5 + 30.1 mg/dl: p > 0.05) decreased. In A allele carriers a significant decreased was detected in insulin levels (-2.8 + 2.1 UI/L vs -1.3 + 8.0 UI/L: p < 0.05) and HOMA index (-1.0 + 1.3 vs -0.2 + 2.1: p > 0.05), too. With the diet M and in both genotype groups, leptin levels (-8.0 + 17.1 ng/ ml vs -4.9 + 18.7 ng/ml: p > 0.05) decreased. Conclusiones: metabolic improvement secondary to weight loss was better in A carriers with a high polyunsaturated fat hypocaloric diet.
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Affiliation(s)
- Daniel Antonio De Luis
- Svo de Endocrinología y Nutrición Hospital Clínico Universitario de Valladolid, Valladolid, Spain..
| | - Rocío Aller
- Svo de Endocrinología y Nutrición Hospital Clínico Universitario de Valladolid, Valladolid, Spain..
| | - Olatz Izaola
- Svo de Endocrinología y Nutrición Hospital Clínico Universitario de Valladolid, Valladolid, Spain..
| | - D Pacheco
- Svo de Endocrinología y Nutrición Hospital Clínico Universitario de Valladolid, Valladolid, Spain..
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Vetharaniam I, Vibart RE, Hanigan MD, Janssen PH, Tavendale MH, Pacheco D. A modified version of the Molly rumen model to quantify methane emissions from sheep1. J Anim Sci 2015; 93:3551-63. [PMID: 26440024 DOI: 10.2527/jas.2015-9037] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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De Massari D, Pacheco D, Malekshahi R, Betella A, Verschure PFMJ, Birbaumer N, Caria A. Fast mental states decoding in mixed reality. Front Behav Neurosci 2014; 8:415. [PMID: 25505878 PMCID: PMC4245910 DOI: 10.3389/fnbeh.2014.00415] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2014] [Accepted: 11/12/2014] [Indexed: 11/16/2022] Open
Abstract
The combination of Brain-Computer Interface (BCI) technology, allowing online monitoring and decoding of brain activity, with virtual and mixed reality (MR) systems may help to shape and guide implicit and explicit learning using ecological scenarios. Real-time information of ongoing brain states acquired through BCI might be exploited for controlling data presentation in virtual environments. Brain states discrimination during mixed reality experience is thus critical for adapting specific data features to contingent brain activity. In this study we recorded electroencephalographic (EEG) data while participants experienced MR scenarios implemented through the eXperience Induction Machine (XIM). The XIM is a novel framework modeling the integration of a sensing system that evaluates and measures physiological and psychological states with a number of actuators and effectors that coherently reacts to the user's actions. We then assessed continuous EEG-based discrimination of spatial navigation, reading and calculation performed in MR, using linear discriminant analysis (LDA) and support vector machine (SVM) classifiers. Dynamic single trial classification showed high accuracy of LDA and SVM classifiers in detecting multiple brain states as well as in differentiating between high and low mental workload, using a 5 s time-window shifting every 200 ms. Our results indicate overall better performance of LDA with respect to SVM and suggest applicability of our approach in a BCI-controlled MR scenario. Ultimately, successful prediction of brain states might be used to drive adaptation of data representation in order to boost information processing in MR.
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Affiliation(s)
- Daniele De Massari
- Institut für Medizinische Psychologie und Verhaltensneurobiologie, Universität Tübingen Tübingen, Germany ; Fondazione Ospedale San Camillo, Istituto di Ricovero e Cura a Carattere Scientifico Venezia, Italy
| | - Daniel Pacheco
- SPECS - Laboratory of Synthetic Perceptive, Emotive and Cognitive Systems, Department of Technology, Center of Autonomous Systems and Neurorobotics, Universitat Pompeu Fabra Barcelona, Spain
| | - Rahim Malekshahi
- Institut für Medizinische Psychologie und Verhaltensneurobiologie, Universität Tübingen Tübingen, Germany ; Graduate School of Neural & Behavioural Sciences, International Max Planck Research School Tübingen, Germany
| | - Alberto Betella
- SPECS - Laboratory of Synthetic Perceptive, Emotive and Cognitive Systems, Department of Technology, Center of Autonomous Systems and Neurorobotics, Universitat Pompeu Fabra Barcelona, Spain
| | - Paul F M J Verschure
- SPECS - Laboratory of Synthetic Perceptive, Emotive and Cognitive Systems, Department of Technology, Center of Autonomous Systems and Neurorobotics, Universitat Pompeu Fabra Barcelona, Spain ; Institució Catalana de Recerca i Estudis Avançats Barcelona, Spain
| | - Niels Birbaumer
- Institut für Medizinische Psychologie und Verhaltensneurobiologie, Universität Tübingen Tübingen, Germany ; Fondazione Ospedale San Camillo, Istituto di Ricovero e Cura a Carattere Scientifico Venezia, Italy
| | - Andrea Caria
- Institut für Medizinische Psychologie und Verhaltensneurobiologie, Universität Tübingen Tübingen, Germany ; Fondazione Ospedale San Camillo, Istituto di Ricovero e Cura a Carattere Scientifico Venezia, Italy
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Sales FA, Pacheco D, Blair HT, Kenyon PR, Nicholas G, Senna Salerno M, McCoard SA. Identification of amino acids associated with skeletal muscle growth in late gestation and at weaning in lambs of well-nourished sheep1. J Anim Sci 2014; 92:5041-52. [DOI: 10.2527/jas.2014-7689] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [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)
- F. A. Sales
- AgResearch, Grasslands Research Centre, Palmerston North, New Zealand
- Gravida: National Research Centre for Growth and Development, Auckland, New Zealand
- Institute of Veterinary, Animal and Biomedical Sciences, Massey University, Palmerston North, New Zealand
- Instituto de Investigaciones Agropecuarias, Centro Regional Kampenaike, Punta Arenas, Chile
| | - D. Pacheco
- AgResearch, Grasslands Research Centre, Palmerston North, New Zealand
| | - H. T. Blair
- Gravida: National Research Centre for Growth and Development, Auckland, New Zealand
- Institute of Veterinary, Animal and Biomedical Sciences, Massey University, Palmerston North, New Zealand
| | - P. R. Kenyon
- Gravida: National Research Centre for Growth and Development, Auckland, New Zealand
- Institute of Veterinary, Animal and Biomedical Sciences, Massey University, Palmerston North, New Zealand
| | - G. Nicholas
- AgResearch, Ruakura Research Centre, Hamilton, New Zealand
| | | | - S. A. McCoard
- AgResearch, Grasslands Research Centre, Palmerston North, New Zealand
- Gravida: National Research Centre for Growth and Development, Auckland, New Zealand
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de Luis DA, Aller R, Izaola O, Bachiller R, Pacheco D. Cardiovascular risk factors and adipocytokines levels after two hypocaloric diets with different fat distribution in obese subjects and rs6923761 gene variant of glucagon-like peptide 1 receptor. J Endocrinol Invest 2014; 37:853-9. [PMID: 24969551 DOI: 10.1007/s40618-014-0116-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [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: 02/23/2014] [Accepted: 06/05/2014] [Indexed: 11/28/2022]
Abstract
BACKGROUND The role of GLP-1 R variants on body weight response after dietary intervention is unclear. OBJECTIVE Our aim was to evaluate the effect of this polymorphism on cardiovascular risk factors, adipokine levels and weight loss secondary to a high monounsaturated fat vs. a high polyunsaturated fat hypocaloric diets in obese subjects. DESIGN 391 obese subjects were randomly allocated to one of these two diets for a period of 3 months; diet M (high monounsaturated fat hypocaloric diet) and diet P (high polyunsaturated (PUFAs) fat hypocaloric diet). RESULTS Two hundred and twelve patients (54.2 %) had the genotype GG (wild group) and 179 (45.8 %) patients had the next genotypes; GA (146 patients, 37.3 %) or AA (33 patients, 8.7 %) (Mutant group). With both diets and in wild-type and mutant-type groups, BMI, weight, fat mass, waist circumference and systolic blood pressure decreased. Anthropometric parameters were higher in non-A-allele carriers than A-allele carriers. With both diets and in both genotypes, leptin, insulin levels and HOMA decreased. With the diet P and in wild genotype, total cholesterol and LDL-cholesterol levels decreased, too. CONCLUSION Our data showed a lack of association of rs6923761 GLP-1 R polymorphism with weight loss after a high monounsaturated fat and a high polyunsaturated fat hypocaloric diets. Better anthropometric parameters in obese subjects with the mutant allele (A) of rs6923761 GLP-1 R polymorphism were observed. Insulin levels and HOMA decreased in non-A carriers.
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Affiliation(s)
- Daniel Antonio de Luis
- Center of Investigation of Endocrinology and Nutrition, Medicine School and Department of Endocrinology and Nutrition, Hospital Clinico Universitario, University of Valladolid, C/Los perales 16, Simancas, 47130, Valladolid, Spain,
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Hammond K, Pacheco D, Burke J, Koolaard J, Muetzel S, Waghorn G. The effects of fresh forages and feed intake level on digesta kinetics and enteric methane emissions from sheep. Anim Feed Sci Technol 2014. [DOI: 10.1016/j.anifeedsci.2014.04.005] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Ortega-González M, Sánchez de Medina F, Molina-Santiago C, López-Posadas R, Pacheco D, Krell T, Martínez-Augustin O, Abdelali D. Fructooligosacharides reduce Pseudomonas aeruginosa PAO1 pathogenicity through distinct mechanisms. PLoS One 2014; 9:e85772. [PMID: 24465697 PMCID: PMC3899050 DOI: 10.1371/journal.pone.0085772] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2013] [Accepted: 12/06/2013] [Indexed: 12/15/2022] Open
Abstract
Pseudomonas aeruginosa is ubiquitously present in the environment and acts as an opportunistic pathogen on humans, animals and plants. We report here the effects of the prebiotic polysaccharide inulin and its hydrolysed form FOS on this bacterium. FOS was found to inhibit bacterial growth of strain PAO1, while inulin did not affect growth rate or yield in a significant manner. Inulin stimulated biofilm formation, whereas a dramatic reduction of the biofilm formation was observed in the presence of FOS. Similar opposing effects were observed for bacterial motility, where FOS inhibited the swarming and twitching behaviour whereas inulin caused its stimulation. In co-cultures with eukaryotic cells (macrophages) FOS and, to a lesser extent, inulin reduced the secretion of the inflammatory cytokines IL-6, IL-10 and TNF-α. Western blot experiments indicated that the effects mediated by FOS in macrophages are associated with a decreased activation of the NF-κB pathway. Since FOS and inulin stimulate pathway activation in the absence of bacteria, the FOS mediated effect is likely to be of indirect nature, such as via a reduction of bacterial virulence. Further, this modulatory effect is observed also with the highly virulent ptxS mutated strain. Co-culture experiments of P. aeruginosa with IEC18 eukaryotic cells showed that FOS reduces the concentration of the major virulence factor, exotoxin A, suggesting that this is a possible mechanism for the reduction of pathogenicity. The potential of these compounds as components of antibacterial and anti-inflammatory cocktails is discussed.
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Affiliation(s)
- Mercedes Ortega-González
- Department of Biochemistry and Molecular Biology II, Centre of networked Biomedical Research about Hepatic and Digestive Diseases, School of Pharmacy, University of Granada, Granada, Spain
| | - Fermín Sánchez de Medina
- Departments of Pharmacology, Centre of networked Biomedical Research about Hepatic and Digestive Diseases, School of Pharmacy, University of Granada, Granada, Spain
| | - Carlos Molina-Santiago
- Department of Environmental Protection, Consejo Superior de Investigaciones Científicas, C/Profesor Albareda 1, Granada, Spain
| | - Rocío López-Posadas
- Departments of Pharmacology, Centre of networked Biomedical Research about Hepatic and Digestive Diseases, School of Pharmacy, University of Granada, Granada, Spain
| | - Daniel Pacheco
- Department of Environmental Protection, Consejo Superior de Investigaciones Científicas, C/Profesor Albareda 1, Granada, Spain
| | - Tino Krell
- Department of Environmental Protection, Consejo Superior de Investigaciones Científicas, C/Profesor Albareda 1, Granada, Spain
| | - Olga Martínez-Augustin
- Department of Biochemistry and Molecular Biology II, Centre of networked Biomedical Research about Hepatic and Digestive Diseases, School of Pharmacy, University of Granada, Granada, Spain
| | - Daddaoua Abdelali
- Department of Environmental Protection, Consejo Superior de Investigaciones Científicas, C/Profesor Albareda 1, Granada, Spain
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Pacheco D, Travassos A, Antunes J, Soares de Almeida L, Filipe P, Correia T. Occupational airborne contact dermatitis caused by usnic acid in a domestic worker. Allergol Immunopathol (Madr) 2014; 42:80-2. [PMID: 23295019 DOI: 10.1016/j.aller.2012.07.017] [Citation(s) in RCA: 5] [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] [Received: 06/14/2012] [Revised: 07/06/2012] [Accepted: 07/06/2012] [Indexed: 11/24/2022]
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Aller R, de Luis DA, Pacheco D, Velasco MC, Conde R, Izaola O, González Sagrado M. Influence of G1359A polimorphysm of the cannabinoid receptor gene (CNR1) on insulin resistance and adipokines in patients with non alcoholic fatty liver disease. NUTR HOSP 2013; 27:1637-42. [PMID: 23478717 DOI: 10.3305/nh.2012.27.5.6011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2012] [Accepted: 06/20/2012] [Indexed: 12/01/2022] Open
Abstract
BACKGROUND Considering the evidence that endogenous cannabinoid system plays a role in metabolic aspects of body weight and metabolic syndrome components such as non alcoholic fatty liver disease (NAFLD). The aim of our study was to investigate the influence of this polymorphism on insulin resistance, liver histological changes, anthropometric parameters and adipocytokines in patients with NAFLD. MATERIAL AND METHODS A population of 71 patients with NAFLD was recruited in a cross sectional study. A biochemical analysis of serum was measured. Genotype of G1359A polymorphism of CB1 receptor gene CB1 receptor was studied. Forty one patients (36.9%) had the genotype G1359G (wild type group) and twenty nine (26.1%) patients G1359A or A1359A (mutant type group). RESULTS Twenty four 24 patients (32,3%) had a Brunt grade > 4 and 12 patients (17%) had a significative fibrosis (F > = 2). HOMA values were higher in wild type group than mutant type group. Adiponectin and visfatin levels were higher in mutant type group. Moreover, TNF-alpha and resistin levels were higher in wild type group than mutant type group. Patients with mutant genotype showed less frequently elevated levels of AST. AST > 40 UI/L was detected in 28.5% of patients in the mutant vs. 53% of patients with wild genotype, p < 0.05. Patients with mutant type group presented a percentage of Brunt grade > = 4 less frequently than patients with wild type group (28.5%vs 7.1%). CONCLUSION A variant of the polymorphism G1359A CBR1 is associated with lower levels of HOMA, TNF-alpha, resistin and higher levels of adiponectin than patients with the wild variant of this polymorphism. Besides, patients with A allele variant shown lower Brunt grade in liver biopsy.
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Affiliation(s)
- R Aller
- Gastroenterology Department, Hospital Clínico Universitario of Valladolid, Valladolid, España
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de Luis DA, Izaola O, Aller R, de La Fuente B, Pacheco D. Effects of C358A polymorphism of the endocannabinoid degrading enzyme fatty acid amide hydrolase (FAAH) on weight loss, adipocytokines levels, and insulin resistance after a high polyunsaturated fat diet in obese patients. J Endocrinol Invest 2013; 36:965-9. [PMID: 24445122 DOI: 10.1007/bf03346760] [Citation(s) in RCA: 9] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
BACKGROUND AND AIMS The C385A polymorphism of FAAH gene (rs324420C>A) has been associated with obesity. We investigate the role of this polymorphism on anthropometric and insulin resistance responses to a high polyunsaturated fat hypocaloric diet. METHODS Obese individuals (no.=99) were assessed at baseline and after 3 months of a high polyunsaturated fat hypocaloric diet. RESULTS Seventy-one patients (71.7%) had the genotype C385C and 28 (28.3%) patients had the C385A (26 patients, 26.3%) or A358A (2 patients, 2.0%) (A allele carriers group) genotype. In A allele carriers and after dietary intervention, total cholesterol (-16.3 ± 37.4 mg/dl) and LDL-cholesterol (-12.9 ± 6.5 mg/dl) levels decreased. In subjects with C385C genotype, the decreases were significant in total cholesterol (-12.3 ± 27.4 mg/dl), LDL-cholesterol (-7.5 ± 20.5 mg/dl), insulin (-2.2 ± 6.2 mUI/l), and homeostasis model assessment of insulin resistance (HOMA-R) (-0.79 ± 1.15 units) levels. The weight loss was similar in both genotype groups (-4.1 ± 3.8 kg vs -4.2 ± 3.2 kg). Only leptin levels had a significant similar decrease in both genotypes. CONCLUSION Subjects with C385C genotype of the FAAH showed an improvement on insulin and HOMA-R levels with a high polyunsaturated fat hypocaloric diet after weight loss during 3 months.
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Affiliation(s)
- D A de Luis
- Institute of Endocrinology and Nutrition, Medicine School and Unit of Investigation, Hospital Rio Hortega, University of Valladolid, C/Los perales 16, Simancas 47130, Valladolid, Spain.
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Pacheco D, Travassos AR, Antunes J, Silva R, Lopes A, Marques MS. Allergic hypersensitivity to Deflazacort. Allergol Immunopathol (Madr) 2013; 41:352-4. [PMID: 23141753 DOI: 10.1016/j.aller.2012.07.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2012] [Revised: 07/05/2012] [Accepted: 07/06/2012] [Indexed: 11/18/2022]
Affiliation(s)
- D Pacheco
- Clínica Universitaria de Dermatologia, Hospital de Santa Maria, Centro Hospitalar Lisboa Norte (CHLN), Portugal.
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Sciascia Q, Pacheco D, McCoard SA. Increased milk protein synthesis in response to exogenous growth hormone is associated with changes in mechanistic (mammalian) target of rapamycin (mTOR)C1-dependent and independent cell signaling. J Dairy Sci 2013; 96:2327-2338. [PMID: 23462168 DOI: 10.3168/jds.2012-6267] [Citation(s) in RCA: 26] [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] [Received: 10/14/2012] [Accepted: 01/02/2013] [Indexed: 01/17/2023]
Abstract
The objective of this study was to determine if increased milk protein synthesis observed in lactating dairy cows treated with growth hormone (GH) was associated with mechanistic (or mammalian) target of rapamycin complex 1 (mTORC1) regulation of downstream factors controlling nucleocytoplasmic export and translation of mRNA. To address this objective, biochemical indices of mammary growth and secretory activity and the abundance and phosphorylation status of mTORC1 pathway factors were measured in mammary tissues harvested from nonpregnant lactating dairy cows 6 d after treatment with a slow-release formulation of GH or saline (n=4/group). Treatment with GH increased mammary parenchymal weight and total protein content and tended to increase ribosome number and cell size, whereas protein synthetic efficiency, capacity, and cell number were unchanged. Cellular abundance of the mTORC1 components mTOR and (phosphorylated) mTOR(Ser2448) increased, as did complex eukaryotic initiation factor 4E:eukaryotic initiation factor 4E binding protein 1 (eIF4E:4EBP1), whereas no change was observed for mTORC1-downstream targets 4EBP1, 4EBP1(Ser65), p70/p85(S6K) and p70(S6K)Thre389/p85(S6K)Thre412. Changes in activation were not observed for any of the targets measured. These results indicate that GH treatment influences signaling to mTORC1 but not downstream targets involved in the nucleocytoplasmic export and translation of mRNA. Increased eIF4E:4EBP1 complex formation indicates involvement of the mitogen-activated protein kinase (MAPK) pathway. Abundance of MAPK pathway components eIF4E, eIF4E(Ser209), eIF4E:eIF4G complex, MAP kinase-interacting serine/threonine-protein kinase 1 (MKNK1), MKNK1(Thr197202), and ribosomal protein S6 kinase, 90kDa, polypeptide 1 (RPS6KA1) increased significantly in response to GH, whereas relative activation of the proteins was unchanged. Expression of IGFBP3 and IGFBP5 increased, that of IGF1R decreased, and that of IGF1 remained unchanged in response to GH. PatSearch analysis of the milk caseins αS1-casein, αS2-casein, and β-casein, MAPK signaling target RPS6KA1, and proliferation gene IGFBP3 mRNA indicated that all contained putative eIF4E-sensitivity elements. In response to GH, these genes were all upregulated, suggesting that increased abundance of eIF4E and eIF4E(Ser209) plays a role in mediating their nucleocytoplasmic export. We propose that, in response to GH, the IGF1-IGF1R-MAPK signaling cascade regulates eIF4E-mediated nucleocytoplasmic export and translation of mRNA, whereas mTOR controls cell renewal, cell turnover, and rRNA transcription through an alternative signaling cascade.
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Affiliation(s)
- Q Sciascia
- Animal Nutrition Team, Animal Nutrition and Health Group, AgResearch Grasslands, Private Bag 11008, Palmerston North 4442, New Zealand
| | - D Pacheco
- Animal Nutrition Team, Animal Nutrition and Health Group, AgResearch Grasslands, Private Bag 11008, Palmerston North 4442, New Zealand
| | - S A McCoard
- Animal Nutrition Team, Animal Nutrition and Health Group, AgResearch Grasslands, Private Bag 11008, Palmerston North 4442, New Zealand.
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Sun X, Waghorn G, Hoskin S, Harrison S, Muetzel S, Pacheco D. Methane emissions from sheep fed fresh brassicas (Brassica spp.) compared to perennial ryegrass (Lolium perenne). Anim Feed Sci Technol 2012. [DOI: 10.1016/j.anifeedsci.2012.07.013] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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