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Sylvester E, Hoell M, Boyd Wilkerson I. Effect of Unlimited Two-Way Texting on Maternal Self-Efficacy Toward Successful Adherence to the 2020-2025 Dietary Guidelines’ Infant Feeding Recommendations. J Acad Nutr Diet 2022. [DOI: 10.1016/j.jand.2022.06.147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Yi W, Sylvester E, Lian J, Deng C. Kidney plays an important role in ketogenesis induced by risperidone and voluntary exercise in juvenile female rats. Psychiatry Res 2021; 305:114196. [PMID: 34488011 DOI: 10.1016/j.psychres.2021.114196] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 07/16/2021] [Accepted: 08/28/2021] [Indexed: 11/27/2022]
Abstract
The positive role of ketone bodies in the treatment for mental disorders has been demonstrated. Ketogenesis can be triggered by not only exercise and diet but also metabolic disorders. This study aimed to explore the role of risperidone and exercise in ketogenesis. Thirty-two juvenile female Sprague Dawley rats were randomly assigned into four groups: Vehicle-Sedentary, Risperidone (0.9 mg/kg; b.i.d)-Sedentary, Vehicle-Exercise (three hours daily access to running wheels) and Risperidone-Exercise groups for four weeks. Exercise-intervention significantly ameliorated the risperidone-induced increase in white adipose mass, fasting plasma triglyceride and insulin levels. Compared to the vehicle-exercise group, the risperidone-exercise group had significantly higher plasma β-hydroxybutyrate (β-HB) level, which had a positive correlation with plasma non-esterified fatty acid levels. Risperidone-treatment upregulated expression of ketogenic key enzyme, mitochondrial 3-hydroxy-3-methyl-glutaryl-CoA synthase 2 (HMGCS2) in the kidney rather than liver. Exercise-intervention significantly enhanced renal carnitine palmitoyltransferase1A (CPT1A) expression. These results suggested that the kidney plays an important role in ketogenesis associated with risperidone and exercise. Therefore, it is important to monitor the levels of plasma ketone bodies while exercise intervention is utilized to prevent risperidone-induced metabolic disorders in young people.
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Affiliation(s)
- Weijie Yi
- Department of Nutrition and Food Hygiene, School of Public Health and Management, Binzhou Medical University, Yantai, Shandong 264003, China; Antipsychotic Research Laboratory, Illawarra Health and Medical Research Institute, Wollongong, NSW, Australia; School of Medicine and Molecular Horizons, University of Wollongong, Wollongong, NSW, Australia
| | - Emma Sylvester
- Antipsychotic Research Laboratory, Illawarra Health and Medical Research Institute, Wollongong, NSW, Australia; School of Medicine and Molecular Horizons, University of Wollongong, Wollongong, NSW, Australia
| | - Jiamei Lian
- Antipsychotic Research Laboratory, Illawarra Health and Medical Research Institute, Wollongong, NSW, Australia; School of Medicine and Molecular Horizons, University of Wollongong, Wollongong, NSW, Australia
| | - Chao Deng
- Antipsychotic Research Laboratory, Illawarra Health and Medical Research Institute, Wollongong, NSW, Australia; School of Medicine and Molecular Horizons, University of Wollongong, Wollongong, NSW, Australia.
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Sylvester E, Yi W, Han M, Deng C. Exercise intervention for preventing risperidone-induced dyslipidemia and gluco-metabolic disorders in female juvenile rats. Pharmacol Biochem Behav 2020; 199:173064. [PMID: 33127383 DOI: 10.1016/j.pbb.2020.173064] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 09/30/2020] [Accepted: 10/23/2020] [Indexed: 01/02/2023]
Abstract
Risperidone use in children and adolescents is associated with the development of metabolic disorders including increased accumulation of body fat, dyslipidemia, and glucose and insulin metabolism dysregulation. As pharmacological interventions are often limited in their ability to treat a range of side-effects, this study aimed to evaluate the effectiveness of daily voluntary exercise intervention to prevent metabolic side-effects induced by risperidone in juveniles. Thirty-two juvenile female Sprague Dawley rats were treated with risperidone (0.9 mg/kg; b.i.d; n = 16) or vehicle (0.3 g cookie dough pellet; n = 16). These rats were then assigned to a sedentary or voluntary exercise intervention (three hours daily access to running wheels) group (n = 8/group) for a period of four weeks. An intra-peritoneal glucose tolerance test was performed after three weeks of risperidone treatment and exercise intervention to assess glucose tolerance. During the exercise intervention, risperidone-treated rats ran significantly less than vehicle-treated rats. Risperidone treatment of sedentary rats resulted in significantly increased white adipose tissue, fasting triglyceride and fasting insulin compared to vehicle-treated sedentary rats. Exercise intervention of risperidone-treated rats prevented significant increases in these metabolic parameters compared to risperidone-treated sedentary rats. These results support voluntary exercise as an effective mitigator of metabolic side-effects associated with risperidone treatment in juvenile rats. Dyslipidemia and dysregulation of glucose and insulin metabolism are significant risk factors for morbidities and mortality later in life, therefore a focus on strategies to mitigate these adverse effects is critical. Our findings support clinical trials in exercise intervention to prevent metabolic disorders associated with antipsychotic medication in children and adolescents.
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Affiliation(s)
- Emma Sylvester
- Antipsychotic Research Laboratory, Illawarra Health and Medical Research Institute, Wollongong, NSW 2522, Australia; School of Medicine and Molecular Horizons, University of Wollongong, Wollongong, NSW 2522, Australia
| | - Weijie Yi
- Antipsychotic Research Laboratory, Illawarra Health and Medical Research Institute, Wollongong, NSW 2522, Australia; School of Medicine and Molecular Horizons, University of Wollongong, Wollongong, NSW 2522, Australia; Department of Nutrition and Food Hygiene, School of Public Health and Management, Binzhou Medical University, Yantai, Shandong 264003, China
| | - Mei Han
- Antipsychotic Research Laboratory, Illawarra Health and Medical Research Institute, Wollongong, NSW 2522, Australia; School of Medicine and Molecular Horizons, University of Wollongong, Wollongong, NSW 2522, Australia
| | - Chao Deng
- Antipsychotic Research Laboratory, Illawarra Health and Medical Research Institute, Wollongong, NSW 2522, Australia; School of Medicine and Molecular Horizons, University of Wollongong, Wollongong, NSW 2522, Australia.
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Bradbury IR, Wringe BF, Watson B, Paterson I, Horne J, Beiko R, Lehnert SJ, Clément M, Anderson EC, Jeffery NW, Duffy S, Sylvester E, Robertson M, Bentzen P. Genotyping-by-sequencing of genome-wide microsatellite loci reveals fine-scale harvest composition in a coastal Atlantic salmon fishery. Evol Appl 2018; 11:918-930. [PMID: 29928300 PMCID: PMC5999200 DOI: 10.1111/eva.12606] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [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: 10/16/2017] [Accepted: 01/20/2018] [Indexed: 12/12/2022] Open
Abstract
Individual assignment and genetic mixture analysis are commonly utilized in contemporary wildlife and fisheries management. Although microsatellite loci provide unparalleled numbers of alleles per locus, their use in assignment applications is increasingly limited. However, next-generation sequencing, in conjunction with novel bioinformatic tools, allows large numbers of microsatellite loci to be simultaneously genotyped, presenting new opportunities for individual assignment and genetic mixture analysis. Here, we scanned the published Atlantic salmon genome to identify 706 microsatellite loci, from which we developed a final panel of 101 microsatellites distributed across the genome (average 3.4 loci per chromosome). Using samples from 35 Atlantic salmon populations (n = 1,485 individuals) from coastal Labrador, Canada, a region characterized by low levels of differentiation in this species, this panel identified 844 alleles (average of 8.4 alleles per locus). Simulation-based evaluations of assignment and mixture identification accuracy revealed unprecedented resolution, clearly identifying 26 rivers or groups of rivers spanning 500 km of coastline. This baseline was used to examine the stock composition of 696 individuals harvested in the Labrador Atlantic salmon fishery and revealed that coastal fisheries largely targeted regional groups (<300 km). This work suggests that the development and application of large sequenced microsatellite panels presents great potential for stock resolution in Atlantic salmon and more broadly in other exploited anadromous and marine species.
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Affiliation(s)
- Ian R. Bradbury
- Science BranchDepartment of Fisheries and Oceans CanadaSt. John'sNLCanada
- Department of BiologyDalhousie UniversityHalifaxNSCanada
- Faculty of Computer ScienceDalhousie UniversityHalifaxNSCanada
| | - Brendan F. Wringe
- Science BranchDepartment of Fisheries and Oceans CanadaSt. John'sNLCanada
| | - Beth Watson
- Department of BiologyDalhousie UniversityHalifaxNSCanada
| | - Ian Paterson
- Department of BiologyDalhousie UniversityHalifaxNSCanada
| | - John Horne
- Department of BiologyDalhousie UniversityHalifaxNSCanada
| | - Robert Beiko
- Faculty of Computer ScienceDalhousie UniversityHalifaxNSCanada
| | - Sarah J. Lehnert
- Science BranchDepartment of Fisheries and Oceans CanadaSt. John'sNLCanada
| | - Marie Clément
- Center for Fisheries Ecosystems ResearchFisheries and Marine Institute of MemorialUniversity of NewfoundlandSt. John'sNLCanada
- Labrador Institute ofMemorial University of NewfoundlandHappy Valley‐Goose BayNLCanada
| | - Eric C. Anderson
- Fisheries Ecology DivisionSouthwest Fisheries Science CenterNational Marine Fisheries ServiceNational Oceanic and Atmospheric AdministrationSanta CruzCAUSA
| | | | - Steven Duffy
- Science BranchDepartment of Fisheries and Oceans CanadaSt. John'sNLCanada
| | - Emma Sylvester
- Science BranchDepartment of Fisheries and Oceans CanadaSt. John'sNLCanada
- Faculty of Computer ScienceDalhousie UniversityHalifaxNSCanada
| | - Martha Robertson
- Science BranchDepartment of Fisheries and Oceans CanadaSt. John'sNLCanada
| | - Paul Bentzen
- Department of BiologyDalhousie UniversityHalifaxNSCanada
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Adkisson P, Allen W, Casida J, Sylvester E. Ray Fred Smith. Biogr Mem Natl Acad Sci 2001; 80:290-9. [PMID: 15202473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
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Diehl B, Evers S, Sylvester E, Sprinz A, Husstedt IW. [Routine electroencephalogram in follow-up of patients with HIV infections of different stages. A long-term study]. Nervenarzt 1998; 69:485-9. [PMID: 9673971 DOI: 10.1007/s001150050301] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Electroencephalography (EEG) is a well-tolerated non-invasive method and is therefore well suited for repetitive examinations. We performed serial EEG's on 117 HIV patients without any clinical signs of secondary neuromanifestation in order to document electroencephalographic changes in the course of HIV infection. Clinical signs of HIV-associated encephalopathy presented 18 patients at the first examination and 23 at reexamination. EEGs were analyzed visually; there was a mean interval of 20.3 +/- 13.7 months between the first and the second examination. Significant slowing of background activity occurred in the course of the disease; the alpha rhythm decreased from 10.7 +/- 2.3 Hz to 10.0 +/- 2.4 Hz (P < 0.05) with an increase in amplitudes from 60.9 +/- 24.6 microV to 69.5 +/- 33.7 microV (p < 0.05). The percentage of spontaneous dysrhythmias also increased from 30.7% to 41.8% (P < 0.05); pathological findings provoked by hyperventilation increased from 13.6% to 18.2%. Foci occurred rarely and did not increase in frequency with time. CD4 cell counts decreased from 294.2 +/- 209.5/microliter to 188.7 +/- 208.3/microliter (P < 0.01). The results of this study indicate progressive CNS dysfunction with worsening of the immunostatus.
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Affiliation(s)
- B Diehl
- Klinik und Poliklinik für Neurologie, Westfälische Wilhelms-Universität, Münster
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Sylvester E. Teamwork, quality, and competitive advantage: the Deming philosophy in orthodontics. J Clin Orthod 1993; 27:269-75. [PMID: 8360346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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Sylvester E, Hurd H. A patient "menu" for colored arch-wire ties. Funct Orthod 1992; 9:14-5. [PMID: 1452051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Sylvester E. [ACTH as a prophylactic against the Jarisch-Herxheimer reaction]. Z Haut Geschlechtskr 1969; 44:125-6. [PMID: 4311756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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