1
|
Tomkins NW, Elliott R, McGrath JJ, Schatz T. Managing plasma P concentrations in beef heifers with a slow release vitamin D supplementation. Anim Prod Sci 2020. [DOI: 10.1071/an17601] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Context In extensive northern grazing systems, supplementation of P is recommended to maximise cattle growth rates and reproduction. Improving the absorption of P for the animal by influencing metabolic pathways has the potential to improve both the productivity and profitability of extensive livestock enterprises. Aims This study evaluated the efficacy of rumen bolus containing 25-hydroxyvitamin D (25OHD), commercially available as Hy-D®, and/or monensin on blood P and Ca concentrations in young cattle. Methods A total of 84 heifers, initial liveweight (mean ± s.e.m.) 184 ± 2.0 kg, were allocated to four groups, dosed with one of four slow release bolus: (1) placebo (control), (2) monensin (120 mg/day), (3) Hy-D® (6 mg/day), or (4) monensin with Hy-D®, and managed on a common unimproved native pasture from August 2012 to February 2013. On four occasions postdosing, liveweight, hip height and body condition scores were recorded, and individual faecal and jugular blood samples were collected. Key results Supplementation with monensin had a significant effect (P < 0.05) on average daily gains for the first 25 days. Interactions between 25OHD and monensin and time × monensin were also significant (P < 0.05). After 188 days, heifers receiving monensin or 25OHD + monensin were 5 and 10 kg heavier respectively, compared with their counterparts in the control and 25OHD groups. Plasma P concentrations at 25 days were 6.6 mg/dL, then increased to between 8.5 and 9.0 mg/dL and maintained this level for up to 109 days with a bolus releasing 6.0 mg/day 25OHD. Conclusions The study demonstrated that sustained and elevated plasma concentrations of both 25OHD and P, compared with control animals, can be achieved. The slow release rumen bolus maintained an elevated plasma concentration of 25OHD, and indicated that a target plasma concentration for 25OHD for increasing P absorption in beef cattle is between 200 and 300 ng/mL. Implications Supplementation of a metabolite of vitamin D influences P metabolism in Brahman heifers under grazing conditions. Integration with standard supplementation practices would optimise growth rates and reproductive performance.
Collapse
|
2
|
Rodney RM, Celi P, McGrath JJ, Golder HM, Anderson ST, McNeill DM, Fraser DR, Lean IJ. Metabolic and production responses to calcidiol treatment in mid-lactation dairy cows. Anim Prod Sci 2019. [DOI: 10.1071/an16770] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The study of vitamin D in cattle has often focussed on its role in calcium and mineral metabolism. However, there is evidence of a wider role for vitamin D in bone and energy metabolism. Two studies were conducted to explore relationships between calcidiol supplementation, blood minerals and metabolites in mid-lactation dairy cows. In Experiment 1, a dose-response study was conducted in which 25 mid-lactation cows were fed one of five supplementary calcidiol doses (0, 0.5, 1, 2 or 4 mg calcidiol/day) for 30 days, with blood samples taken every 10 days. Increasing calcidiol dose increased plasma calcidiol (P=0.001), 24,25-(OH)2-D3 (P=0.001) and serum phosphate (P=0.003) in a curvilinear manner, increased and then decreased plasma 25-OH-D2 (P=0.004) and linearly increased 3-epi 25-OH-D3 (P=0.001) and milk calcidiol concentrations (P=0.001). Calcidiol supplementation did not affect milk yield or composition, bodyweight or condition score. In Experiment 2, relationships between blood calcidiol and mineral and metabolite concentrations over time were explored using time-series analysis. Ten mid-lactation cows were fed either 0 or 0.5 mg calcidiol/day for 27 days, with blood samples taken every 3 days. Feeding calcidiol increased plasma calcidiol (P=0.001), 24,25-OH-D3 (P=0.038), and insulin (P=0.046), but decreased 25-OH-D2 (P=0.008) concentrations. Positive associations were identified between blood calcidiol and concentrations of other metabolites, including cholecalciferol, calcium, osteocalcin, glucose, insulin, non-esterified fatty acids, β-hydroxybutyrate, cholesterol, magnesium, phosphorus and total protein at varying lags (±0, 3 or 6 days), while negative relationships were identified between calcidiol and 24,25-(OH)2-D3, and phosphorus 3 days later. Importantly, strong positive associations between calcidiol and indicators of energy metabolism were identified. Overall, these experiments provide support for a positive effect of calcidiol treatment on dairy cow metabolism.
Collapse
|
3
|
Affiliation(s)
- S Suetani
- Queensland Centre for Mental Health Research, The Park Centre for Mental Health, Wacol, Australia.,Queensland Brain Institute, The University of Queensland, St Lucia, Australia.,Metro South Addiction and Mental Health Services, Brisbane, Australia
| | - D Siskind
- Queensland Centre for Mental Health Research, The Park Centre for Mental Health, Wacol, Australia.,Metro South Addiction and Mental Health Services, Brisbane, Australia.,School of Medicine, The University of Queensland, Brisbane, Qld, Australia
| | - J G Scott
- Queensland Centre for Mental Health Research, The Park Centre for Mental Health, Wacol, Australia.,School of Public Health, The University of Queensland, Herston, Australia.,Metro North Mental Health, Royal Brisbane and Women's Hospital, Herston, Australia
| | - J J McGrath
- Queensland Centre for Mental Health Research, The Park Centre for Mental Health, Wacol, Australia.,Queensland Brain Institute, The University of Queensland, St Lucia, Australia.,National Centre for Register-based Research, The Aarhus University, Aarhus C, Denmark
| |
Collapse
|
4
|
Vinkhuyzen AAE, Eyles DW, Burne THJ, Blanken LME, Kruithof CJ, Verhulst F, Jaddoe VW, Tiemeier H, McGrath JJ. Gestational vitamin D deficiency and autism-related traits: the Generation R Study. Mol Psychiatry 2018; 23:240-246. [PMID: 27895322 PMCID: PMC5554617 DOI: 10.1038/mp.2016.213] [Citation(s) in RCA: 95] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Revised: 09/05/2016] [Accepted: 10/14/2016] [Indexed: 12/14/2022]
Abstract
There is intense interest in identifying modifiable risk factors associated with autism-spectrum disorders (ASD). Autism-related traits, which can be assessed in a continuous fashion, share risk factors with ASD, and thus can serve as informative phenotypes in population-based cohort studies. Based on the growing body of research linking gestational vitamin D deficiency with altered brain development, this common exposure is a candidate modifiable risk factor for ASD and autism-related traits. The association between gestational vitamin D deficiency and a continuous measure of autism-related traits at ~6 years (Social Responsiveness Scale; SRS) was determined in a large population-based cohort of mothers and their children (n=4229). 25-hydroxyvitamin D (25OHD) was assessed from maternal mid-gestation sera and from neonatal sera (collected from cord blood). Vitamin D deficiency was defined as 25OHD concentrations less than 25 nmol l-1. Compared with the 25OHD sufficient group (25OHD>50 nmol l-1), those who were 25OHD deficient had significantly higher (more abnormal) SRS scores (mid-gestation n=2866, β=0.06, P<0.001; cord blood n=1712, β=0.03, P=0.01). The findings persisted (a) when we restricted the models to offspring with European ancestry, (b) when we adjusted for sample structure using genetic data, (c) when 25OHD was entered as a continuous measure in the models and (d) when we corrected for the effect of season of blood sampling. Gestational vitamin D deficiency was associated with autism-related traits in a large population-based sample. Because gestational vitamin D deficiency is readily preventable with safe, cheap and accessible supplements, this candidate risk factor warrants closer scrutiny.
Collapse
Affiliation(s)
- A A E Vinkhuyzen
- Queensland Brain Institute, The University of Queensland, St Lucia, QLD, Australia
| | - D W Eyles
- Queensland Brain Institute, The University of Queensland, St Lucia, QLD, Australia.,Queensland Centre for Mental Health Research, The Park Centre for Mental Health, Wacol, QLD, Australia
| | - T H J Burne
- Queensland Brain Institute, The University of Queensland, St Lucia, QLD, Australia.,Queensland Centre for Mental Health Research, The Park Centre for Mental Health, Wacol, QLD, Australia
| | - L M E Blanken
- The Generation R Study Group, Erasmus MC, University Medical Center, Rotterdam, The Netherlands.,Department of Child and Adolescent Psychiatry/Psychology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | - C J Kruithof
- The Generation R Study Group, Erasmus MC, University Medical Center, Rotterdam, The Netherlands.,Department of Epidemiology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | - F Verhulst
- Department of Child and Adolescent Psychiatry/Psychology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | - V W Jaddoe
- The Generation R Study Group, Erasmus MC, University Medical Center, Rotterdam, The Netherlands.,Department of Epidemiology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands.,Department of Pediatrics, Erasmus Medical Center, Rotterdam, The Netherlands
| | - H Tiemeier
- Department of Child and Adolescent Psychiatry/Psychology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands.,Department of Epidemiology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | - J J McGrath
- Queensland Brain Institute, The University of Queensland, St Lucia, QLD, Australia.,Queensland Centre for Mental Health Research, The Park Centre for Mental Health, Wacol, QLD, Australia.,National Centre for Register-Based Research, Aarhus University, Aarhus C, Denmark
| |
Collapse
|
5
|
Kesby JP, Eyles DW, McGrath JJ, Scott JG. Dopamine, psychosis and schizophrenia: the widening gap between basic and clinical neuroscience. Transl Psychiatry 2018; 8:30. [PMID: 29382821 PMCID: PMC5802623 DOI: 10.1038/s41398-017-0071-9] [Citation(s) in RCA: 182] [Impact Index Per Article: 30.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Revised: 10/10/2017] [Accepted: 10/26/2017] [Indexed: 12/18/2022] Open
Abstract
The stagnation in drug development for schizophrenia highlights the need for better translation between basic and clinical research. Understanding the neurobiology of schizophrenia presents substantial challenges but a key feature continues to be the involvement of subcortical dopaminergic dysfunction in those with psychotic symptoms. Our contemporary knowledge regarding dopamine dysfunction has clarified where and when dopaminergic alterations may present in schizophrenia. For example, clinical studies have shown patients with schizophrenia show increased presynaptic dopamine function in the associative striatum, rather than the limbic striatum as previously presumed. Furthermore, subjects deemed at high risk of developing schizophrenia show similar presynaptic dopamine abnormalities in the associative striatum. Thus, our view of subcortical dopamine function in schizophrenia continues to evolve as we accommodate this newly acquired information. However, basic research in animal models has been slow to incorporate these clinical findings. For example, psychostimulant-induced locomotion, the commonly utilised phenotype for positive symptoms in rodents, is heavily associated with dopaminergic activation in the limbic striatum. This anatomical misalignment has brought into question how we assess positive symptoms in animal models and represents an opportunity for improved translation between basic and clinical research. The current review focuses on the role of subcortical dopamine dysfunction in psychosis and schizophrenia. We present and discuss alternative phenotypes that may provide a more translational approach to assess the neurobiology of positive symptoms in schizophrenia. Incorporation of recent clinical findings is essential if we are to develop meaningful translational animal models.
Collapse
Affiliation(s)
- JP Kesby
- 0000 0000 9320 7537grid.1003.2Queensland Brain Institute, The University of Queensland, St. Lucia, QLD Australia ,0000 0000 9320 7537grid.1003.2Centre for Clinical Research, Faculty of Medicine, The University of Queensland, Herston, QLD Australia
| | - DW Eyles
- 0000 0000 9320 7537grid.1003.2Queensland Brain Institute, The University of Queensland, St. Lucia, QLD Australia ,0000 0004 0606 3563grid.417162.7Queensland Centre for Mental Health Research, The Park Centre for Mental Health, Wacol, QLD Australia
| | - JJ McGrath
- 0000 0000 9320 7537grid.1003.2Queensland Brain Institute, The University of Queensland, St. Lucia, QLD Australia ,0000 0004 0606 3563grid.417162.7Queensland Centre for Mental Health Research, The Park Centre for Mental Health, Wacol, QLD Australia ,0000 0001 1956 2722grid.7048.bNational Centre for Register-based Research, Aarhus University, Aarhus C, Denmark
| | - JG Scott
- 0000 0000 9320 7537grid.1003.2Centre for Clinical Research, Faculty of Medicine, The University of Queensland, Herston, QLD Australia ,0000 0004 0606 3563grid.417162.7Queensland Centre for Mental Health Research, The Park Centre for Mental Health, Wacol, QLD Australia ,0000 0001 0688 4634grid.416100.2Metro North Mental Health, Royal Brisbane and Women’s Hospital, Herston, QLD Australia
| |
Collapse
|
6
|
Pedersen CB, Bybjerg-Grauholm J, Pedersen MG, Grove J, Agerbo E, Bækvad-Hansen M, Poulsen JB, Hansen CS, McGrath JJ, Als TD, Goldstein JI, Neale BM, Daly MJ, Hougaard DM, Mors O, Nordentoft M, Børglum AD, Werge T, Mortensen PB. The iPSYCH2012 case-cohort sample: new directions for unravelling genetic and environmental architectures of severe mental disorders. Mol Psychiatry 2018; 23:6-14. [PMID: 28924187 PMCID: PMC5754466 DOI: 10.1038/mp.2017.196] [Citation(s) in RCA: 180] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Revised: 07/06/2017] [Accepted: 07/13/2017] [Indexed: 12/16/2022]
Abstract
The Integrative Psychiatric Research (iPSYCH) consortium has established a large Danish population-based Case-Cohort sample (iPSYCH2012) aimed at unravelling the genetic and environmental architecture of severe mental disorders. The iPSYCH2012 sample is nested within the entire Danish population born between 1981 and 2005, including 1 472 762 persons. This paper introduces the iPSYCH2012 sample and outlines key future research directions. Cases were identified as persons with schizophrenia (N=3540), autism (N=16 146), attention-deficit/hyperactivity disorder (N=18 726) and affective disorder (N=26 380), of which 1928 had bipolar affective disorder. Controls were randomly sampled individuals (N=30 000). Within the sample of 86 189 individuals, a total of 57 377 individuals had at least one major mental disorder. DNA was extracted from the neonatal dried blood spot samples obtained from the Danish Neonatal Screening Biobank and genotyped using the Illumina PsychChip. Genotyping was successful for 90% of the sample. The assessments of exome sequencing, methylation profiling, metabolome profiling, vitamin-D, inflammatory and neurotrophic factors are in progress. For each individual, the iPSYCH2012 sample also includes longitudinal information on health, prescribed medicine, social and socioeconomic information, and analogous information among relatives. To the best of our knowledge, the iPSYCH2012 sample is the largest and most comprehensive data source for the combined study of genetic and environmental aetiologies of severe mental disorders.
Collapse
Affiliation(s)
- C B Pedersen
- iPSYCH, The Lundbeck Foundation Initiative for Integrative Psychiatric Research, Aarhus, Denmark,National Centre for Register-Based Research, Business and Social Sciences, Aarhus University, Aarhus V, Denmark,Centre for Integrated Register-Based Research, CIRRAU, Aarhus University, Aarhus, Denmark,National Centre for Register-Based Research, Business and Social Sciences, Aarhus University, Fuglesangs Allé 4, Aarhus 8210, Denmark. E-mail:
| | - J Bybjerg-Grauholm
- iPSYCH, The Lundbeck Foundation Initiative for Integrative Psychiatric Research, Aarhus, Denmark,Department for Congenital Disorders, Statens Serum Institut, Copenhagen, Denmark
| | - M G Pedersen
- iPSYCH, The Lundbeck Foundation Initiative for Integrative Psychiatric Research, Aarhus, Denmark,National Centre for Register-Based Research, Business and Social Sciences, Aarhus University, Aarhus V, Denmark,Centre for Integrated Register-Based Research, CIRRAU, Aarhus University, Aarhus, Denmark
| | - J Grove
- iPSYCH, The Lundbeck Foundation Initiative for Integrative Psychiatric Research, Aarhus, Denmark,Centre for Integrative Sequencing, Department of Biomedicine and iSEQ, Aarhus University, Aarhus, Denmark,BiRC-Bioinformatics Research Centre, Aarhus University, Aarhus, Denmark
| | - E Agerbo
- iPSYCH, The Lundbeck Foundation Initiative for Integrative Psychiatric Research, Aarhus, Denmark,National Centre for Register-Based Research, Business and Social Sciences, Aarhus University, Aarhus V, Denmark,Centre for Integrated Register-Based Research, CIRRAU, Aarhus University, Aarhus, Denmark
| | - M Bækvad-Hansen
- iPSYCH, The Lundbeck Foundation Initiative for Integrative Psychiatric Research, Aarhus, Denmark,Department for Congenital Disorders, Statens Serum Institut, Copenhagen, Denmark
| | - J B Poulsen
- iPSYCH, The Lundbeck Foundation Initiative for Integrative Psychiatric Research, Aarhus, Denmark,Department for Congenital Disorders, Statens Serum Institut, Copenhagen, Denmark
| | - C S Hansen
- iPSYCH, The Lundbeck Foundation Initiative for Integrative Psychiatric Research, Aarhus, Denmark,Department for Congenital Disorders, Statens Serum Institut, Copenhagen, Denmark
| | - J J McGrath
- iPSYCH, The Lundbeck Foundation Initiative for Integrative Psychiatric Research, Aarhus, Denmark,National Centre for Register-Based Research, Business and Social Sciences, Aarhus University, Aarhus V, Denmark,Queensland Brain Institute, The University of Queensland, St Lucia, QLD, Australia,Queensland Centre for Mental Health Research, The Park Centre for Mental Health, Wacol, QLD, Australia
| | - T D Als
- iPSYCH, The Lundbeck Foundation Initiative for Integrative Psychiatric Research, Aarhus, Denmark,Centre for Integrative Sequencing, Department of Biomedicine and iSEQ, Aarhus University, Aarhus, Denmark
| | - J I Goldstein
- Analytic and Translational Genetics Unit (ATGU), Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA,Program in Medical and Population Genetics, Broad Institute of Harvard and MIT, Cambridge, MA, USA,Stanley Center for Psychiatric Research, Broad Institute of Harvard and MIT, Cambridge, MA, USA
| | - B M Neale
- Analytic and Translational Genetics Unit (ATGU), Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA,Program in Medical and Population Genetics, Broad Institute of Harvard and MIT, Cambridge, MA, USA,Stanley Center for Psychiatric Research, Broad Institute of Harvard and MIT, Cambridge, MA, USA
| | - M J Daly
- Analytic and Translational Genetics Unit (ATGU), Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA,Program in Medical and Population Genetics, Broad Institute of Harvard and MIT, Cambridge, MA, USA,Stanley Center for Psychiatric Research, Broad Institute of Harvard and MIT, Cambridge, MA, USA
| | - D M Hougaard
- iPSYCH, The Lundbeck Foundation Initiative for Integrative Psychiatric Research, Aarhus, Denmark,Department for Congenital Disorders, Statens Serum Institut, Copenhagen, Denmark
| | - O Mors
- iPSYCH, The Lundbeck Foundation Initiative for Integrative Psychiatric Research, Aarhus, Denmark,Psychosis Research Unit, Aarhus University Hospital, Risskov, Denmark
| | - M Nordentoft
- iPSYCH, The Lundbeck Foundation Initiative for Integrative Psychiatric Research, Aarhus, Denmark,Mental Health Centre Copenhagen, Capital Region of Denmark, Copenhagen University Hospital, Copenhagen, Denmark
| | - A D Børglum
- iPSYCH, The Lundbeck Foundation Initiative for Integrative Psychiatric Research, Aarhus, Denmark,Centre for Integrative Sequencing, Department of Biomedicine and iSEQ, Aarhus University, Aarhus, Denmark
| | - T Werge
- iPSYCH, The Lundbeck Foundation Initiative for Integrative Psychiatric Research, Aarhus, Denmark,Mental Health Centre Sct. Hans, Capital Region of Denmark, Institute of Biological Psychiatry, Copenhagen University Hospital, Copenhagen, Denmark
| | - P B Mortensen
- iPSYCH, The Lundbeck Foundation Initiative for Integrative Psychiatric Research, Aarhus, Denmark,National Centre for Register-Based Research, Business and Social Sciences, Aarhus University, Aarhus V, Denmark,Centre for Integrated Register-Based Research, CIRRAU, Aarhus University, Aarhus, Denmark,Centre for Integrative Sequencing, Department of Biomedicine and iSEQ, Aarhus University, Aarhus, Denmark
| |
Collapse
|
7
|
Suetani S, Mamun A, Williams GM, Najman JM, McGrath JJ, Scott JG. The association between adolescent psychopathology and subsequent physical activity in young adulthood: a 21-year birth cohort study. Psychol Med 2018; 48:269-278. [PMID: 28625171 DOI: 10.1017/s0033291717001660] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
BACKGROUND The beneficial effects of physical activity (PA) for both physical and mental wellbeing are well established. Given that adolescence presents a critical developmental period during which life-long patterns of PA become established, the exploration of the longitudinal impact of adolescent psychopathology on adult PA status is of interest. METHODS We analysed prospective data from 3663 young adults who participated in the Mater-University of Queensland Study of Pregnancy. Psychopathology was measured using the Youth Self-Report (YSR) at age 14. Participants' engagement in three types of PA (vigorous exercise, moderate exercise and walking) at age 21 were dichotomised into either 'none' or 'any'. For our main analysis, we examined the association between the YSR score and subsequent PA engagement using logistic regression. We also conducted sensitivity analyses of longitudinal associations between the YSR internalising and externalising symptoms score at age 14 and PA engagement at age 21. RESULTS We found no longitudinal association between the total YSR score at age 14 and PA engagement at age 21. In addition, there was no longitudinal association between the YSR internalising or externalising symptoms and PA engagement. CONCLUSION Our findings suggest that there is no longitudinal association between adolescent psychopathology and PA in young adulthood.
Collapse
Affiliation(s)
- S Suetani
- Queensland Centre for Mental Health Research, The Park Centre for Mental Health,Wacol,Australia
| | - A Mamun
- Institute for Social Science Research,The University of Queensland, Indooroopilly,Australia
| | - G M Williams
- School of Population Health, The University of Queensland,Herston,Australia
| | - J M Najman
- School of Population Health, The University of Queensland,Herston,Australia
| | - J J McGrath
- Queensland Centre for Mental Health Research, The Park Centre for Mental Health,Wacol,Australia
| | - J G Scott
- Queensland Centre for Mental Health Research, The Park Centre for Mental Health,Wacol,Australia
| |
Collapse
|
8
|
Auerbach RP, Alonso J, Axinn WG, Cuijpers P, Ebert DD, Green JG, Hwang I, Kessler RC, Liu H, Mortier P, Nock MK, Pinder-Amaker S, Sampson NA, Aguilar-Gaxiola S, Al-Hamzawi A, Andrade LH, Benjet C, Caldas-de-Almeida JM, Demyttenaere K, Florescu S, de Girolamo G, Gureje O, Haro JM, Karam EG, Kiejna A, Kovess-Masfety V, Lee S, McGrath JJ, O'Neill S, Pennell BE, Scott K, Ten Have M, Torres Y, Zaslavsky AM, Zarkov Z, Bruffaerts R. Mental disorders among college students in the World Health Organization World Mental Health Surveys - CORRIGENDUM. Psychol Med 2017; 47:2737. [PMID: 28462760 DOI: 10.1017/s0033291717001039] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
9
|
Navarro-Mateu F, Alonso J, Lim CCW, Saha S, Aguilar-Gaxiola S, Al-Hamzawi A, Andrade LH, Bromet EJ, Bruffaerts R, Chatterji S, Degenhardt L, de Girolamo G, de Jonge P, Fayyad J, Florescu S, Gureje O, Haro JM, Hu C, Karam EG, Kovess-Masfety V, Lee S, Medina-Mora ME, Ojagbemi A, Pennell BE, Posada-Villa J, Scott KM, Stagnaro JC, Kendler KS, Kessler RC, McGrath JJ, Kessler RC, McGrath JJ. The association between psychotic experiences and disability: results from the WHO World Mental Health Surveys. Acta Psychiatr Scand 2017; 136:74-84. [PMID: 28542726 PMCID: PMC5664954 DOI: 10.1111/acps.12749] [Citation(s) in RCA: 54] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/17/2017] [Indexed: 01/08/2023]
Abstract
OBJECTIVE While psychotic experiences (PEs) are known to be associated with a range of mental and general medical disorders, little is known about the association between PEs and measures of disability. We aimed to investigate this question using the World Mental Health surveys. METHOD Lifetime occurrences of six types of PEs were assessed along with 21 mental disorders and 14 general medical conditions. Disability was assessed with a modified version of the WHO Disability Assessment Schedule. Descriptive statistics and logistic regression models were used to investigate the association between PEs and high disability scores (top quartile) with various adjustments. RESULTS Respondents with PEs were more likely to have top quartile scores on global disability than respondents without PEs (19.1% vs. 7.5%; χ2 = 190.1, P < 0.001) as well as greater likelihood of cognitive, social, and role impairment. Relationships persisted in each adjusted model. A significant dose-response relationship was also found for the PE type measures with most of these outcomes. CONCLUSIONS Psychotic experiences are associated with disability measures with a dose-response relationship. These results are consistent with the view that PEs are associated with disability regardless of the presence of comorbid mental or general medical disorders.
Collapse
Affiliation(s)
- Fernando Navarro-Mateu
- UDIF-SM, Subdirección General de Planificación, Innovación y Cronicidad, Servicio Murciano de Salud. IMIB-Arrixaca. CIBERESP-Murcia, Murcia, Spain
| | - Jordi Alonso
- Health Services Research Unit, IMIM-Hospital del Mar Medical Research Institute, Barcelona, Spain; Pompeu Fabra University (UPF), Barcelona, Spain; and CIBER en Epidemiología y Salud Pública (CIBERESP), Barcelona, Spain
| | - Carmen C. W. Lim
- Queensland Brain Institute, The University of Queensland, St. Lucia, Queensland, Australia
| | - Sukanta Saha
- Queensland Centre for Mental Health Research, and Queensland Brain Institute, University of Queensland, St. Lucia, Queensland, Australia
| | - Sergio Aguilar-Gaxiola
- Center for Reducing Health Disparities, UC Davis Health System, Sacramento, California, USA
| | - Ali Al-Hamzawi
- College of Medicine, Al-Qadisiya University, Diwaniya governorate, Iraq
| | - Laura H. Andrade
- Section of Psychiatric Epidemiology - LIM 23, Institute of Psychiatry, University of São Paulo Medical School, São Paulo, Brazil
| | - Evelyn J. Bromet
- Department of Psychiatry, Stony Brook University School of Medicine, Stony Brook, New York, USA
| | - Ronny Bruffaerts
- Universitair Psychiatrisch Centrum - Katholieke Universiteit Leuven (UPC-KUL), Campus Gasthuisberg, Leuven, Belgium
| | - Somnath Chatterji
- Department of Information, Evidence and Research, World Health Organization, Geneva, Switzerland
| | - Louisa Degenhardt
- National Drug and Alcohol Research Centre, University of New South Wales, Sydney, NSW 2052, Australia
| | - Giovanni de Girolamo
- Unit of Epidemiological and Evaluation Psychiatry, Istituti di Ricovero e Cura a Carattere Scientifico (IRCCS)-St. John of God Clinical Research Centre, Via Pilastroni 4, Brescia, Italy
| | - Peter de Jonge
- Developmental Psychology, Department of Psychology, Rijksuniversiteit Groningen, Groningen, NL; Interdisciplinary Center Psychopathology and Emotion Regulation, Department of Psychiatry, University Medical
| | - John Fayyad
- Institute for Development, Research, Advocacy & Applied Care (IDRAAC), Beirut, Lebanon
| | - Silvia Florescu
- National School of Public Health, Management and Professional Development, Bucharest, Romania
| | - Oye Gureje
- Department of Psychiatry, University College Hospital, Ibadan, Nigeria
| | - Josep M. Haro
- Parc Sanitari Sant Joan de Déu, CIBERSAM, Universitat de Barcelona, Barcelona, Spain
| | - Chiyi Hu
- Shenzhen Institute of Mental Health & Shenzhen Kangning Hospital, Shenzhen, China
| | - Elie G. Karam
- Department of Psychiatry and Clinical Psychology, Faculty of Medicine, Balamand University, Beirut, Lebanon; Department of Psychiatry and Clinical Psychology, St George Hospital University Medical Center, Beirut, Lebanon; Institute for Development Research Advocacy and Applied Care (IDRAAC), Beirut, Lebanon
| | - Viviane Kovess-Masfety
- Ecole des Hautes Etudes en Santé Publique (EHESP), EA 4057 Paris Descartes University,Paris, France
| | - Sing Lee
- Department of Psychiatry, Chinese University of Hong Kong, Tai Po, Hong Kong
| | | | - Akin Ojagbemi
- College of Medicine, University of Ibadan; University College Hospital, Ibadan, Nigeria
| | - Beth-Ellen Pennell
- Survey Research Center, Institute for Social Research, University of Michigan, Ann Arbor, Michigan, USA
| | - Jose Posada-Villa
- Colegio Mayor de Cundinamarca University, Faculty of Social Sciences, Bogota, Colombia
| | - Kate M. Scott
- Department of Psychological Medicine, University of Otago, Dunedin, Otago, New Zealand
| | - Juan Carlos Stagnaro
- Departamento de Psiquiatría y Salud Mental, Facultad de Medicina, Universidad de Buenos Aires, Argentina
| | | | - Ronald C. Kessler
- Department of Health Care Policy, Harvard Medical School, Boston, Massachusetts, USA
| | - John J. McGrath
- Queensland Centre for Mental Health Research, and Queensland Brain Institute, University of Queensland, St. Lucia, Queensland, Australia; and National Centre for Register-based Research, Aarhus BSS, Aarhus University, Aarhus, Denmark
| | - R. C. Kessler
- Department of Health Care Policy; Harvard Medical School; Boston MA USA
| | - J. J. McGrath
- Queensland Centre for Mental Health Research; University of Queensland; St. Lucia QLD Australia
- Queensland Brain Institute; University of Queensland; St. Lucia QLD Australia
- National Centre for Register-based Research; Aarhus BSS; Aarhus University; Aarhus Denmark
| | | |
Collapse
|
10
|
McGrath JJ, McLaughlin KA, Saha S, Aguilar-Gaxiola S, Al-Hamzawi A, Alonso J, Bruffaerts R, de Girolamo G, de Jonge P, Esan O, Florescu S, Gureje O, Haro JM, Hu C, Karam EG, Kovess-Masfety V, Lee S, Lepine JP, Lim CCW, Medina-Mora ME, Mneimneh Z, Pennell BE, Piazza M, Posada-Villa J, Sampson N, Viana MC, Xavier M, Bromet EJ, Kendler KS, Kessler RC. The association between childhood adversities and subsequent first onset of psychotic experiences: a cross-national analysis of 23 998 respondents from 17 countries. Psychol Med 2017; 47:1230-1245. [PMID: 28065209 PMCID: PMC5590103 DOI: 10.1017/s0033291716003263] [Citation(s) in RCA: 85] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Although there is robust evidence linking childhood adversities (CAs) and an increased risk for psychotic experiences (PEs), little is known about whether these associations vary across the life-course and whether mental disorders that emerge prior to PEs explain these associations. METHOD We assessed CAs, PEs and DSM-IV mental disorders in 23 998 adults in the WHO World Mental Health Surveys. Discrete-time survival analysis was used to investigate the associations between CAs and PEs, and the influence of mental disorders on these associations using multivariate logistic models. RESULTS Exposure to CAs was common, and those who experienced any CAs had increased odds of later PEs [odds ratio (OR) 2.3, 95% confidence interval (CI) 1.9-2.6]. CAs reflecting maladaptive family functioning (MFF), including abuse, neglect, and parent maladjustment, exhibited the strongest associations with PE onset in all life-course stages. Sexual abuse exhibited a strong association with PE onset during childhood (OR 8.5, 95% CI 3.6-20.2), whereas Other CA types were associated with PE onset in adolescence. Associations of other CAs with PEs disappeared in adolescence after adjustment for prior-onset mental disorders. The population attributable risk proportion (PARP) for PEs associated with all CAs was 31% (24% for MFF). CONCLUSIONS Exposure to CAs is associated with PE onset throughout the life-course, although sexual abuse is most strongly associated with childhood-onset PEs. The presence of mental disorders prior to the onset of PEs does not fully explain these associations. The large PARPs suggest that preventing CAs could lead to a meaningful reduction in PEs in the population.
Collapse
Affiliation(s)
- J J McGrath
- Queensland Centre for Mental Health Research, andQueensland Brain Institute,University of Queensland,Australia
| | - K A McLaughlin
- Department of Psychology,University of Washington,Seattle,Washington,USA
| | - S Saha
- Queensland Centre for Mental Health Research, andQueensland Brain Institute,University of Queensland,Australia
| | - S Aguilar-Gaxiola
- Center for Reducing Health Disparities,UC Davis Health System,Sacramento,California,USA
| | - A Al-Hamzawi
- College of Medicine, Al-Qadisiya University,Diwaniya governorate,Iraq
| | - J Alonso
- Health Services Research Unit,IMIM-Hospital del Mar Medical Research Institute,Barcelona,Spain
| | - R Bruffaerts
- Universitair Psychiatrisch Centrum - Katholieke Universiteit Leuven (UPC-KUL),Campus Gasthuisberg,Leuven,Belgium
| | - G de Girolamo
- IRCCS St John of God Clinical Research Centre,IRCCS Centro S. Giovanni di Dio Fatebenefratelli,Brescia,Italy
| | - P de Jonge
- Department of Developmental Psychology,Research Program Interdisciplinary Center Psychopathology and Emotion Regulation, University of Groningen,Groningen,The Netherlands
| | - O Esan
- Department of Psychiatry,University of Ibadan,Nigeria
| | - S Florescu
- National School of Public Health, Management and Professional Development,Bucharest,Romania
| | - O Gureje
- Department of Psychiatry,University College Hospital,Ibadan,Nigeria
| | - J M Haro
- Parc Sanitari Sant Joan de Déu, CIBERSAM, Universitat de Barcelona,Barcelona,Spain
| | - C Hu
- Shenzhen Institute of Mental Health & Shenzhen Kangning Hospital,Shenzhen,China
| | - E G Karam
- Department of Psychiatry and Clinical Psychology, Faculty of Medicine,Balamand University,Beirut,Lebanon
| | - V Kovess-Masfety
- Ecole des Hautes Etudes en Santé Publique (EHESP), EA 4057 Paris Descartes University,Paris,France
| | - S Lee
- Department of Psychiatry,Chinese University of Hong Kong,Tai Po,Hong Kong
| | - J P Lepine
- Hôpital Lariboisière Fernand Widal,Assistance Publique Hôpitaux de Paris INSERM UMR-S 1144,University Paris Diderot and Paris Descartes,Paris,France
| | - C C W Lim
- Queensland Brain Institute, The University of Queensland,St. Lucia, Queensland,Australia
| | - M E Medina-Mora
- National Institute of Psychiatry Ramón de la Fuente,Mexico City,Mexico
| | - Z Mneimneh
- Survey Research Center,Institute for Social Research,University of Michigan,Ann Arbor,Michigan,USA
| | - B E Pennell
- Survey Research Center,Institute for Social Research,University of Michigan,Ann Arbor,Michigan,USA
| | - M Piazza
- Universidad Cayetano Heredia,Lima,Peru
| | - J Posada-Villa
- Colegio Mayor de Cundinamarca University,Bogota,Colombia
| | - N Sampson
- Department of Health Care Policy,Harvard Medical School,Boston, Massachusetts,USA
| | - M C Viana
- Department of Social Medicine,Federal University of Espírito Santo,Vitoria,Brazil
| | - M Xavier
- Department of Mental Health,Faculdade de Ciências Médicas,Chronic Diseases Research Center (CEDOC) and Universidade Nova de Lisboa,Campo dos Mártires da Pátria,Lisbon,Portugal
| | - E J Bromet
- Department of Psychiatry,Stony Brook University School of Medicine,Stony Brook,New York,USA
| | - K S Kendler
- Department of Psychiatry,Virginia Commonwealth University,USA
| | - R C Kessler
- Department of Health Care Policy,Harvard Medical School,Boston, Massachusetts,USA
| |
Collapse
|
11
|
Affiliation(s)
- J J McGrath
- Queensland Brain Institute, University of Queensland, St Lucia, QLD, Australia.,National Center for Register-Based Research, Aarhus BSS, Aarhus University, Aarhus, Denmark
| |
Collapse
|
12
|
Gazibara T, den Dekker HT, de Jongste JC, McGrath JJ, Eyles DW, Burne TH, Reiss IK, Franco OH, Tiemeier H, Jaddoe VWV, Duijts L. Associations of maternal and fetal 25-hydroxyvitamin D levels with childhood lung function and asthma: the Generation R Study. Clin Exp Allergy 2016; 46:337-46. [PMID: 26399470 DOI: 10.1111/cea.12645] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2015] [Revised: 07/31/2015] [Accepted: 08/20/2015] [Indexed: 12/23/2022]
Abstract
BACKGROUND Exposure to low levels of vitamin D in fetal life might be a risk factor for childhood asthma. OBJECTIVE We examined whether 25-hydroxyvitamin D levels in mid-gestation and at birth were associated with higher airway resistance and inflammation, and increased risks of wheezing and asthma in school-age children. METHODS We performed a population-based prospective cohort study among 3130 mothers and their children. Maternal blood samples in mid-gestation and umbilical cord blood samples at birth were used to determine 25-hydroxyvitamin D levels. At age of 6, airway resistance (Rint) was measured by interrupter technique and airway inflammation by fractional exhaled nitric oxide (FENO) using NIOX chemiluminescence analyser. Wheezing and asthma were prospectively assessed by annual questionnaires until age 6. RESULTS Maternal levels of 25-hydroxyvitamin D in mid-gestation were not associated with Rint, FeNO, wheezing patterns, or asthma. Children in the lowest tertile of 25-hydroxyvitamin D levels at birth had a higher Rint (Z-score (95% confidence interval [95% CI]): -0.42 (-0.84, -0.01), P-value for trend< 0.05), compared to those in the highest tertile group. The effect estimate attenuated when child's current 25-hydroxyvitamin D level was taken into account [Z-score (95% CI): -0.55 (-1.08, 0.01)]. CONCLUSION AND CLINICAL RELEVANCE Low levels of 25-hydroxyvitamin D at birth were associated with a higher airway resistance in childhood. Additional adjustment for child's current 25-hydroxyvitamin D level reduced the effect size of the association. Further studies are needed to replicate these findings and to examine mechanisms underlying the observed association and the long-term consequences.
Collapse
Affiliation(s)
- T Gazibara
- The Generation R Study Group, Erasmus MC, University Medical Center, Rotterdam, The Netherlands.,Division of Respiratory Medicine, Department of Pediatrics, Erasmus MC, University Medical Center, Rotterdam, The Netherlands.,Department of Epidemiology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands.,Institute of Epidemiology, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - H T den Dekker
- The Generation R Study Group, Erasmus MC, University Medical Center, Rotterdam, The Netherlands.,Division of Respiratory Medicine, Department of Pediatrics, Erasmus MC, University Medical Center, Rotterdam, The Netherlands.,Department of Epidemiology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | - J C de Jongste
- Division of Respiratory Medicine, Department of Pediatrics, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | - J J McGrath
- Queensland Brain Institute, The University of Queensland, Brisbane, Qld, Australia.,Queensland Centre for Mental Health Research, Park Centre for Mental Health, Wacol, Brisbane, Qld, Australia
| | - D W Eyles
- Queensland Brain Institute, The University of Queensland, Brisbane, Qld, Australia.,Queensland Centre for Mental Health Research, Park Centre for Mental Health, Wacol, Brisbane, Qld, Australia
| | - T H Burne
- Queensland Brain Institute, The University of Queensland, Brisbane, Qld, Australia.,Queensland Centre for Mental Health Research, Park Centre for Mental Health, Wacol, Brisbane, Qld, Australia
| | - I K Reiss
- Division of Neonatology, Department of Pediatrics, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | - O H Franco
- Department of Epidemiology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | - H Tiemeier
- Department of Epidemiology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands.,Department of Child and Adolescent Psychiatry/Psychology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands.,Department of Psychiatry, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | - V W V Jaddoe
- The Generation R Study Group, Erasmus MC, University Medical Center, Rotterdam, The Netherlands.,Department of Epidemiology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands.,Department of Pediatrics, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | - L Duijts
- Division of Respiratory Medicine, Department of Pediatrics, Erasmus MC, University Medical Center, Rotterdam, The Netherlands.,Department of Epidemiology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands.,Division of Neonatology, Department of Pediatrics, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| |
Collapse
|
13
|
Auerbach RP, Alonso J, Axinn WG, Cuijpers P, Ebert DD, Green JG, Hwang I, Kessler RC, Liu H, Mortier P, Nock MK, Pinder-Amaker S, Sampson NA, Aguilar-Gaxiola S, Al-Hamzawi A, Andrade LH, Benjet C, Caldas-de-Almeida JM, Demyttenaere K, Florescu S, de Girolamo G, Gureje O, Haro JM, Karam EG, Kiejna A, Kovess-Masfety V, Lee S, McGrath JJ, O'Neill S, Pennell BE, Scott K, Ten Have M, Torres Y, Zaslavsky AM, Zarkov Z, Bruffaerts R. Mental disorders among college students in the World Health Organization World Mental Health Surveys. Psychol Med 2016; 46:2955-2970. [PMID: 27484622 DOI: 10.1017/s003329176001665] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
BACKGROUND Although mental disorders are significant predictors of educational attainment throughout the entire educational career, most research on mental disorders among students has focused on the primary and secondary school years. METHOD The World Health Organization World Mental Health Surveys were used to examine the associations of mental disorders with college entry and attrition by comparing college students (n = 1572) and non-students in the same age range (18-22 years; n = 4178), including non-students who recently left college without graduating (n = 702) based on surveys in 21 countries (four low/lower-middle income, five upper-middle-income, one lower-middle or upper-middle at the times of two different surveys, and 11 high income). Lifetime and 12-month prevalence and age-of-onset of DSM-IV anxiety, mood, behavioral and substance disorders were assessed with the Composite International Diagnostic Interview (CIDI). RESULTS One-fifth (20.3%) of college students had 12-month DSM-IV/CIDI disorders; 83.1% of these cases had pre-matriculation onsets. Disorders with pre-matriculation onsets were more important than those with post-matriculation onsets in predicting subsequent college attrition, with substance disorders and, among women, major depression the most important such disorders. Only 16.4% of students with 12-month disorders received any 12-month healthcare treatment for their mental disorders. CONCLUSIONS Mental disorders are common among college students, have onsets that mostly occur prior to college entry, in the case of pre-matriculation disorders are associated with college attrition, and are typically untreated. Detection and effective treatment of these disorders early in the college career might reduce attrition and improve educational and psychosocial functioning.
Collapse
Affiliation(s)
- R P Auerbach
- Department of Psychiatry,Harvard Medical School,Boston, MA,USA
| | - J Alonso
- Institut Hospital del Mar d'Investigacions Mèdiques (IMIM),Barcelona,Spain
| | - W G Axinn
- Department of Sociology,Population Studies Center, Survey Research Center, Institute for Social Research, University of Michigan,Ann Arbor, MI,USA
| | - P Cuijpers
- Department of Clinical, Neuro, and Developmental Psychology,Vrije Universiteit Amsterdam,Amsterdam,The Netherlands
| | - D D Ebert
- Department of Psychology, Clinical Psychology and Psychotherapy,Friedrich-Alexander University Nuremberg-Erlangen,Erlangen,Germany
| | - J G Green
- School of Education, Boston University,Boston, MA,USA
| | - I Hwang
- Department of Health Care Policy,Harvard Medical School,Boston, MA,USA
| | - R C Kessler
- Department of Health Care Policy,Harvard Medical School,Boston, MA,USA
| | - H Liu
- Department of Epidemiology,Harvard T.H. Chan School of Public Health,Boston, MA,USA
| | - P Mortier
- Research Group Psychiatry,Department of Neurosciences,KU Leuven University,Leuven,Belgium
| | - M K Nock
- Department of Psychology,Harvard University,Cambridge, MA,USA
| | - S Pinder-Amaker
- Department of Psychiatry,Harvard Medical School,Boston, MA,USA
| | - N A Sampson
- Department of Health Care Policy,Harvard Medical School,Boston, MA,USA
| | - S Aguilar-Gaxiola
- University of California Davis Center for Reducing Health Disparities,School of Medicine,Sacramento, CA,USA
| | - A Al-Hamzawi
- College of Medicine, Al-Qadisiya University,Diwania Governorate,Iraq
| | - L H Andrade
- Section of Psychiatric Epidemiology - LIM 23,Institute of Psychiatry, University of São Paulo Medical School,São Paulo,Brazil
| | - C Benjet
- Department of Epidemiologic and Psychosocial Research,National Institute of Psychiatry Ramón de la Fuente Muñiz,Mexico City,Mexico
| | - J M Caldas-de-Almeida
- Chronic Diseases Research Center (CEDOC) and Department of Mental Health,Faculdade de Ciências Médicas,Universidade Nova de Lisboa,Lisbon,Portugal
| | - K Demyttenaere
- Department of Psychiatry,University Hospital Gasthuisberg, Katholieke Universiteit Leuven,Leuven,Belgium
| | - S Florescu
- National School of Public Health, Management and Professional Development,Bucharest,Romania
| | - G de Girolamo
- IRCCS St John of God Clinical Research Centre,Brescia,Italy
| | - O Gureje
- Department of Psychiatry,University College Hospital,Ibadan,Nigeria
| | - J M Haro
- Parc Sanitari Sant Joan de Déu, CIBERSAM, Universitat de Barcelona,Barcelona,Spain
| | - E G Karam
- Department of Psychiatry and Clinical Psychology,Faculty of Medicine,Balamand University,Beirut,Lebanon
| | - A Kiejna
- Department of Psychiatry,Wroclaw Medical University,Wroclaw,Poland
| | - V Kovess-Masfety
- Ecole des Hautes Etudes en Santé Publique (EHESP), EA 4057 Paris Descartes University,Paris,France
| | - S Lee
- Department of Psychiatry,Chinese University of Hong Kong,Tai Po,Hong Kong
| | - J J McGrath
- Queensland Centre for Mental Health Research, The Park Centre for Mental Health,Wacol,Queensland,Australia
| | - S O'Neill
- School of Psychology, University of Ulster,Londonderry,UK
| | - B-E Pennell
- Survey Research Center, Institute for Social Research, University of Michigan,Ann Arbor, MI,USA
| | - K Scott
- Department of Psychological Medicine,University of Otago,Dunedin,Otago,New Zealand
| | - M Ten Have
- Trimbos-Instituut, Netherlands Institute of Mental Health and Addiction,Utrecht,the Netherlands
| | - Y Torres
- Center for Excellence on Research in Mental Health, CES University,Medellín,Colombia
| | - A M Zaslavsky
- Department of Health Care Policy,Harvard Medical School,Boston, MA,USA
| | - Z Zarkov
- Department Mental Health,National Center of Public Health and Analyses,Sofia,Bulgaria
| | - R Bruffaerts
- Universitair Psychiatrisch Centrum - Katholieke Universiteit Leuven (UPC-KUL),Campus Gasthuisberg,Leuven,Belgium
| |
Collapse
|
14
|
Suetani S, Waterreus A, Morgan V, Foley DL, Galletly C, Badcock JC, Watts G, McKinnon A, Castle D, Saha S, Scott JG, McGrath JJ. Correlates of physical activity in people living with psychotic illness. Acta Psychiatr Scand 2016; 134:129-37. [PMID: 27218211 DOI: 10.1111/acps.12594] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [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] [Accepted: 04/28/2016] [Indexed: 12/29/2022]
Abstract
OBJECTIVE In the light of the high prevalence of physical comorbidities in people with psychotic illness, there is a need to explore modifiable risk factors that may contribute to this disease burden. The benefits of physical activity to both physical and mental health have been well established. We aimed to examine the prevalence and correlates of physical activity in a national sample of adults living with psychotic illness. METHODS Physical activity was assessed in 1801 people using the International Physical Activity Questionnaire. Participants were dichotomised into low and moderate-high physical activity groups and associations between physical activity and a range of sociodemographic, clinical and physical comorbidity variables were examined using logistic regression. RESULTS More than half the participants were categorised in the moderate-high physical activity group with nearly half of the sample engaged in physical activity every day. There were significant associations between low physical activity and older age, unemployment, educational non-participation, antipsychotic medication use, social dysfunction, self-reported loneliness and obesity. However, there was no significant association between physical activity and sex, psychosis type, illness duration, physical comorbidity or negative symptoms. CONCLUSION The findings from this study may inform future interventions designed to increase physical activity in people with psychotic illness.
Collapse
Affiliation(s)
- S Suetani
- School of Medicine, University of Queensland, Brisbane, QLD, Australia.,Queensland Centre for Mental Health Research, The Park Centre for Mental Health, Wacol, QLD, Australia.,Queensland Brain Institute, University of Queensland, St Lucia, QLD, Australia
| | - A Waterreus
- Neuropsychiatric Epidemiology Research Unit, School of Psychiatry and Clinical Neurosciences, University of Western Australia, Crawley, WA, Australia
| | - V Morgan
- Neuropsychiatric Epidemiology Research Unit, School of Psychiatry and Clinical Neurosciences, University of Western Australia, Crawley, WA, Australia.,Centre for Clinical Research in Neuropsychiatry, School of Psychiatry and Clinical Neurosciences, University of Western Australia, Crawley, WA, Australia
| | - D L Foley
- Orygen, The National Centre for Excellence in Youth Mental Health, Centre for Youth Mental Health, University of Melbourne, Melbourne, Vic., Australia
| | - C Galletly
- School of Medicine, University of Adelaide, Adelaide, SA, Australia.,Ramsay Health Care (SA) Mental Health, Adelaide, SA, Australia.,Northern Adelaide Local Health Network, Adelaide, SA, Australia
| | - J C Badcock
- Centre for Clinical Research in Neuropsychiatry, School of Psychiatry and Clinical Neurosciences, University of Western Australia, Crawley, WA, Australia.,Cooperative Research Centre - Mental Health, Carlton, Vic., Australia
| | - G Watts
- Lipid Disorders Clinic, Metabolic Research Centre, School of Medicine and Pharmacology, University of Western Australia, Crawley, WA, Australia.,Royal Perth Hospital, Perth, WA, Australia
| | - A McKinnon
- Orygen, The National Centre for Excellence in Youth Mental Health, Centre for Youth Mental Health, University of Melbourne, Melbourne, Vic., Australia
| | - D Castle
- Department of Psychiatry, University of Melbourne, Melbourne, Vic., Australia.,St Vincent's Hospital, Melbourne, Vic., Australia
| | - S Saha
- School of Medicine, University of Queensland, Brisbane, QLD, Australia.,Queensland Centre for Mental Health Research, The Park Centre for Mental Health, Wacol, QLD, Australia.,Queensland Brain Institute, University of Queensland, St Lucia, QLD, Australia
| | - J G Scott
- Queensland Centre for Mental Health Research, The Park Centre for Mental Health, Wacol, QLD, Australia.,University of Queensland Centre for Clinical Research, University of Queensland, Herston, Australia.,Royal Brisbane and Women's Hospital, Herston, QLD, Australia
| | - J J McGrath
- Queensland Centre for Mental Health Research, The Park Centre for Mental Health, Wacol, QLD, Australia.,Queensland Brain Institute, University of Queensland, St Lucia, QLD, Australia
| |
Collapse
|
15
|
Affiliation(s)
- J. J. McGrath
- The University of Queensland, Queensland Brain Institute, St. Lucia, Australia
- Queensland Centre for Mental Health Research, The Park Centre for Mental Health, Richlands, Australia
| |
Collapse
|
16
|
Abstract
Accelerated growth of dairy calves in the pre-weaning phase has been shown to increase productivity of dairy cows during their lifetime. The increased weight gain during the pre-weaning phase is not the driving factor behind the changes in life-time productivity as the weight gained is inconsequential in terms of pre-lactation and weight gain. Furthermore, there are no differences in weight of heifers at the start of first lactation. The increased weight gain during the pre-weaning period must, therefore, initiate cellular changes within the animal. Research has focussed on increasing total nutritional supply or an increase in protein supply for promotion of such changes. The benefits of antioxidants in animal nutrition have been known for a long period of time. However, they have gained prominence with enforced reduction in use of antibiotics in many animal production systems. The role of antioxidants in nutrition of both the calf and the dam before parturition is critical for preventing disease and optimising growth weight of the pre-weaned calf. However, studies are yet to demonstrate a role, outside of preventive health, for the use of antioxidants in the pre-weaning period for increasing total life-time production of the dairy cow.
Collapse
|
17
|
Miliku K, Voortman T, Franco OH, McGrath JJ, Eyles DW, Burne TH, Hofman A, Tiemeier H, Jaddoe VWV. Vitamin D status during fetal life and childhood kidney outcomes. Eur J Clin Nutr 2015; 70:629-34. [PMID: 26695721 DOI: 10.1038/ejcn.2015.216] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2015] [Revised: 09/28/2015] [Accepted: 11/09/2015] [Indexed: 12/18/2022]
Abstract
BACKGROUND/OBJECTIVES Maternal vitamin D deficiency during pregnancy may influence offspring kidney health. We aimed to examine the associations of 25-hydroxyvitamin D (25(OH)D) blood levels during fetal life with kidney outcomes at school age. SUBJECTS/METHODS This study was embedded in a population-based prospective cohort study among 4212 mother-child pairs. We measured maternal second trimester (18-25 weeks) and fetal cord blood (at birth) 25(OH)D levels. At a median age of 6.0 years, we measured children's combined kidney volume, glomerular filtration rate (eGFR) from creatinine and cystatin C serum levels, and microalbuminuria from albumin and creatinine urine levels. RESULTS Of all mothers, 21.9% had severely deficient levels (25(OH)D <25.0 nmol/l), 25.7% had deficient levels (25.0-49.9 nmol/l), 25% had sufficient levels (50.0-74.9 nmol/l) and 27.4% had optimal levels (⩾75.0 nmol/l). Maternal 25(OH)D levels were not consistently associated with childhood combined kidney volume. Higher maternal 25(OH)D levels were associated with lower childhood eGFR (difference -0.94 ml/min per 1.73 m(2) (95% confidence interval, -1.73; -0.15) per 1 standard deviation (s.d.) increase in 25(OH)D). Maternal 25(OH)D levels were not associated with microalbuminuria. Cord blood 25(OH)D levels were not associated with childhood kidney outcomes. The associations of maternal 25(OH)D levels with childhood eGFR were partly explained by childhood vitamin D status. CONCLUSIONS Our findings suggest that maternal 25(OH)D levels during pregnancy may influence childhood kidney outcomes. These results should be considered hypothesis generating. Further studies are needed to replicate the observations, to examine the underlying mechanisms and to identify the long-term clinical consequences.
Collapse
Affiliation(s)
- K Miliku
- The Generation R Study Group, Erasmus MC, University Medical Center, Rotterdam, The Netherlands.,Department of Epidemiology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands.,Department of Pediatrics, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | - T Voortman
- The Generation R Study Group, Erasmus MC, University Medical Center, Rotterdam, The Netherlands.,Department of Epidemiology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | - O H Franco
- Department of Epidemiology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | - J J McGrath
- Queensland Brain Institute, The University of Queensland, Brisbane, Queensland, Australia.,Queensland Centre for Mental Health Research, Park Centre for Mental Health, Brisbane, Queensland, Australia
| | - D W Eyles
- Queensland Brain Institute, The University of Queensland, Brisbane, Queensland, Australia.,Queensland Centre for Mental Health Research, Park Centre for Mental Health, Brisbane, Queensland, Australia
| | - T H Burne
- Queensland Brain Institute, The University of Queensland, Brisbane, Queensland, Australia.,Queensland Centre for Mental Health Research, Park Centre for Mental Health, Brisbane, Queensland, Australia
| | - A Hofman
- Department of Epidemiology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | - H Tiemeier
- Department of Epidemiology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands.,Department of Child and Adolescent Psychiatry, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | - V W V Jaddoe
- The Generation R Study Group, Erasmus MC, University Medical Center, Rotterdam, The Netherlands.,Department of Epidemiology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands.,Department of Pediatrics, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| |
Collapse
|
18
|
Davis J, Maes M, Andreazza A, McGrath JJ, Tye SJ, Berk M. Towards a classification of biomarkers of neuropsychiatric disease: from encompass to compass. Mol Psychiatry 2015; 20:152-3. [PMID: 25349167 DOI: 10.1038/mp.2014.139] [Citation(s) in RCA: 89] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/16/2014] [Revised: 09/12/2014] [Accepted: 09/17/2014] [Indexed: 01/03/2023]
Abstract
There is currently considerable imprecision in the nosology of biomarkers used in the study of neuropsychiatric disease. The neuropsychiatric field lags behind others such as oncology, wherein, rather than using 'biomarker' as a blanket term for a diverse range of clinical phenomena, biomarkers have been actively classified into separate categories, including prognostic and predictive tests. A similar taxonomy is proposed for neuropsychiatric diseases in which the core biology remains relatively unknown. This paper divides potential biomarkers into those of (1) risk, (2) diagnosis/trait, (3) state or acuity, (4) stage, (5) treatment response and (6) prognosis, and provides illustrative exemplars. Of course, biomarkers rely on available technology and, as we learn more about the neurobiological correlates of neuropsychiatric disorders, we will realize that the classification of biomarkers across these six categories can change, and some markers may fit into more than one category.
Collapse
Affiliation(s)
- J Davis
- IMPACT Strategic Research Centre, Deakin University School of Medicine, Barwon Health, Geelong, VIC, Australia
| | - M Maes
- IMPACT Strategic Research Centre, Deakin University School of Medicine, Barwon Health, Geelong, VIC, Australia
| | - A Andreazza
- Department of Psychiatry and Pharmacology, University of Toronto, Toronto, ON, Canada
| | - J J McGrath
- 1] Queensland Brain Institute, The University of Queensland, St Lucia, QLD, Australia [2] Queensland Centre for Mental Health Research, The Park Centre for Mental Health, Wacol, QLD, Australia
| | - S J Tye
- 1] Department of Psychiatry and Psychology, Mayo Clinic, Rochester, MN, USA [2] School of Psychology, Deakin University, Burwood, VIC, Australia
| | - M Berk
- 1] IMPACT Strategic Research Centre, Deakin University School of Medicine, Barwon Health, Geelong, VIC, Australia [2] Centre of Youth Mental Health, University of Melbourne, Parkville, VIC, Australia [3] Orygen Youth Health Research Centre, Parkville, VIC, Australia [4] Florey Institute for Neuroscience and Mental Health, University of Melbourne, Parkville, VIC, Australia [5] Department of Psychiatry, University of Melbourne, Royal Melbourne Hospital, Parkville, VIC, Australia
| |
Collapse
|
19
|
McGrath JJ, Savage DB, Godwin IR. The role and potential advantages of vitamin D metabolites in maintaining calcium status in high-producing dairy herds. Anim Prod Sci 2015. [DOI: 10.1071/an14450] [Citation(s) in RCA: 5] [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
Long-term, declining fertility is a reported trend in high-production dairy herds. Nutrition management is identified as a key area where improvement is required. Most published literature relating to nutrition management of dairy cow fertility examines energy and protein status and peri-parturient calcium (Ca) homeostasis availability. This paper examines the current understanding of Ca homeostasis relevant to improving performance in the high-production dairy herd. In particular, this article reviews Ca and vitamin D nutrition during lactation, for achieving health and productivity improvements in subsequent lactations, with specific reference to pasture-based dairy herds. Vitamin D metabolites are essential for increasing the proportion of absorbed Ca when dietary Ca concentration is low or when the requirement for Ca is high. Vitamin D metabolites stimulate the synthesis of the proteins that control active intestinal Ca absorption. This has particular relevance to cows that may not be able to replenish Ca reserves before parturition, which may be a common occurrence in current pasture-based dairy systems. It is possible that due to reductions in Ca reserves, the effectiveness of the cow to liberate sufficient Ca into plasma at parturition will be compromised as she faces subsequent lactations. This has significant implications for the ability of the cow to progress through transition in a healthy state, maintain an optimum energy balance during early lactation and subsequently conceive. Suboptimal nutritional management of Ca status through successive lactations may be shortening the productive life of the high-producing dairy cow.
Collapse
|
20
|
McGrath JJ, Miettunen J, Jääskeläinen E, Dark F. The onset and offset of psychosis--and what happens in between--a commentary on ‘Reappraising the long-term course and outcome of psychotic disorders: the AESOP-10 Study’ by Morgan et al. (2014). Psychol Med 2014; 44:2705-2711. [PMID: 25066328 DOI: 10.1017/s0033291714001378] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
As one would expect for a heterogeneous syndrome like schizophrenia, at the individual level the course of symptoms and disability vary widely. Mindful that the definition of recovery/remission varies widely between studies, a recent systematic review and meta-analysis reported that the proportion of those with schizophrenia who recover on both symptom and functional outcome is modest (approximately 14%). A 10-year follow-up of the English multicentre AESOP incidence study provides more 'fine-grained' insights into the time course of symptom fluctuation for schizophrenia and other psychotic disorders. We highlight selected findings from the new study and speculate on the role of different outcome domains for future study (e.g., symptom, occupational/functional, cognition, physical health, patient-nominated outcomes). Because recovery is a multifaceted process, we need to develop a panel of practical and operationalizable criteria for remission and recovery.
Collapse
Affiliation(s)
- J J McGrath
- Queensland Centre for Mental Health Research,The Park Centre for Mental Health,Wacol, QLD,Australia
| | - J Miettunen
- Department of Psychiatry,University of Oulu and Oulu University Hospital,Oulu,Finland
| | - E Jääskeläinen
- Department of Psychiatry,University of Oulu and Oulu University Hospital,Oulu,Finland
| | - F Dark
- Rehabilitation Academic Clinical Unit, Metro South Mental Health Services, McGregor, QLD,Australia
| |
Collapse
|
21
|
Morgan VA, McGrath JJ, Jablensky A, Badcock JC, Waterreus A, Bush R, Carr V, Castle D, Cohen M, Galletly C, Harvey C, Hocking B, McGorry P, Neil AL, Saw S, Shah S, Stain HJ, Mackinnon A. Psychosis prevalence and physical, metabolic and cognitive co-morbidity: data from the second Australian national survey of psychosis. Psychol Med 2014; 44:2163-2176. [PMID: 24365456 PMCID: PMC4045165 DOI: 10.1017/s0033291713002973] [Citation(s) in RCA: 139] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2013] [Revised: 11/05/2013] [Accepted: 11/09/2013] [Indexed: 12/15/2022]
Abstract
BACKGROUND There are insufficient data from nationwide surveys on the prevalence of specific psychotic disorders and associated co-morbidities. METHOD The 2010 Australian national psychosis survey used a two-phase design to draw a representative sample of adults aged 18-64 years with psychotic disorders in contact with public treatment services from an estimated resident population of 1 464 923 adults. This paper is based on data from 1642 participants with an International Classification of Diseases (ICD)-10 psychotic disorder. Its aim is to present estimates of treated prevalence and lifetime morbid risk of psychosis, and to describe the cognitive, physical health and substance use profiles of participants. RESULTS The 1-month treated prevalence of psychotic disorders was 3.10 cases per 1000 population aged 18-64 years, not accounting for people solely accessing primary care services; lifetime morbid risk was 3.45 per 1000. Mean premorbid intelligence quotient was approximately 0.5 s.d.s below the population mean; current cognitive ability (measured with a digit symbol coding task) was 1.6 s.d.s below the population mean. For both cognitive tests, higher scores were significantly associated with better independent functioning. The prevalence of the metabolic syndrome was high, affecting 60.8% of participants, and pervasive across diagnostic groups. Of the participants, two-thirds (65.9%) were current smokers, 47.4% were obese and 32.4% were sedentary. Of the participants, half (49.8%) had a lifetime history of alcohol abuse/dependence and 50.8% lifetime cannabis abuse/dependence. CONCLUSIONS Our findings highlight the need for comprehensive, integrative models of recovery to maximize the potential for good health and quality of life for people with psychotic illness.
Collapse
Affiliation(s)
- V. A. Morgan
- Neuropsychiatric Epidemiology Research Unit, School of Psychiatry and Clinical Neurosciences, The University of Western Australia, Crawley, WA, Australia
- Centre for Clinical Research in Neuropsychiatry, School of Psychiatry and Clinical Neurosciences, The University of Western Australia, Crawley, WA, Australia
| | - J. J. McGrath
- Queensland Brain Institute, The University of Queensland, Brisbane, QLD, Australia
- Queensland Centre for Mental Health Research, Brisbane, QLD, Australia
| | - A. Jablensky
- Centre for Clinical Research in Neuropsychiatry, School of Psychiatry and Clinical Neurosciences, The University of Western Australia, Crawley, WA, Australia
| | - J. C. Badcock
- School of Psychology, The University of Western Australia, Crawley, Western Australia
- Clinical Research Centre, North Metropolitan Health Service-Mental Health, Mount Claremont, WA, Australia
| | - A. Waterreus
- Neuropsychiatric Epidemiology Research Unit, School of Psychiatry and Clinical Neurosciences, The University of Western Australia, Crawley, WA, Australia
| | - R. Bush
- School of Population Health, The University of Queensland, Ipswich, QLD, Australia
| | - V. Carr
- School of Psychiatry, The University of New South Wales, Sydney, NSW, Australia
- Schizophrenia Research Institute, Sydney, NSW, Australia
| | - D. Castle
- Department of Psychiatry, The University of Melbourne, Melbourne, VIC, Australia
- St Vincent's Hospital, Melbourne, VIC, Australia
| | - M. Cohen
- Hunter New England Mental Health, Newcastle, NSW, Australia
- School of Medicine and Public Health, The University of Newcastle, Newcastle, NSW, Australia
| | - C. Galletly
- School of Medicine, University of Adelaide, Adelaide, SA, Australia
- Ramsay Health Care (SA) Mental Health Services, Adelaide, SA, Australia
- Northern Sector, Adelaide Metro Mental Health Directorate, Adelaide, SA, Australia
| | - C. Harvey
- Department of Psychiatry, The University of Melbourne, Melbourne, VIC, Australia
- Psychosocial Research Centre, North West Area Mental Health Services, Coburg, VIC, Australia
| | - B. Hocking
- SANE Australia, Melbourne, VIC, Australia
| | - P. McGorry
- Department of Psychiatry, The University of Melbourne, Melbourne, VIC, Australia
- Orygen Youth Health Research Centre, Melbourne, VIC, Australia
- Centre for Youth Mental Health, The University of Melbourne, Melbourne, VIC, Australia
| | - A. L. Neil
- Menzies Research Institute Tasmania, University of Tasmania, Hobart, Australia
| | - S. Saw
- Australian Government Department of Health and Ageing, Canberra, ACT, Australia
| | - S. Shah
- Neuropsychiatric Epidemiology Research Unit, School of Psychiatry and Clinical Neurosciences, The University of Western Australia, Crawley, WA, Australia
| | - H. J. Stain
- Centre for Rural and Remote Mental Health, University of Newcastle, Newcastle, NSW, Australia
- School of Medicine, Pharmacy and Health, Durham University, Durham, UK
| | - A. Mackinnon
- Orygen Youth Health Research Centre, Melbourne, VIC, Australia
- Centre for Youth Mental Health, The University of Melbourne, Melbourne, VIC, Australia
| |
Collapse
|
22
|
Abstract
OBJECTIVE Short sleep duration is recognized as a significant risk factor in childhood obesity; however, the question as to how sleep contributes to the development of obesity remains largely unknown. The majority of pediatric studies have relied on sleep duration as the exclusive measure of sleep; this insular approach may be misleading given that sleep is a dynamic multidimensional construct beyond sleep duration, including sleep disturbances and patterns. Although these sleep dimensions partly overlap, it is necessary to determine their independent relation with obesity, which in turn, may inform a more comprehensive understanding of putative pathophysiological mechanisms linking sleep and obesity. The aim of the present study was to investigate whether sleep dimensions including sleep duration, disturbances, and patterns were individually associated with obesity, independent of multiple covariates. The second objective was to examine whether sleep disturbances and patterns were independently associated with obesity, after adjusting for sleep duration. METHODS Participants included 240 healthy children and adolescents (Mage=12.60, s.d.=1.98; 45.8% females). Anthropometric measures included measured waist and hip circumference, body mass index Z-score, and percent body fat. Subjective sleep measures included sleep duration, sleep disturbances, sleep quality, and sleep patterns from youth- and parental report. RESULTS Youth with larger adiposity and body composition measures reported poorer sleep quality (β avg=-0.14, P<0.01), more sleep disturbances (β avg=0.13, P<0.05), and showed a delayed sleep phase pattern (β avg=0.15, P<0.05), independent of age, sex, pubertal status, physical activity, screen time, socioeconomic status, and sleep duration. Shorter sleep duration was significantly associated with obesity; however, this link was attenuated after adjustment of covariates. CONCLUSIONS The results suggest that sleep measures beyond duration may more precisely capture influences that drive the negative association between sleep and obesity, and thus, yield more robust associations. As such, future studies are needed to better understand how distinct sleep dimensions confer risk for childhood obesity.
Collapse
Affiliation(s)
- D C Jarrin
- Pediatric Public Health Psychology Laboratory, Department of Psychology, Concordia University, Montréal, Quebec, Canada
| | | | | |
Collapse
|
23
|
Cui X, Pelekanos M, Liu PY, Burne THJ, McGrath JJ, Eyles DW. The vitamin D receptor in dopamine neurons; its presence in human substantia nigra and its ontogenesis in rat midbrain. Neuroscience 2013; 236:77-87. [PMID: 23352937 DOI: 10.1016/j.neuroscience.2013.01.035] [Citation(s) in RCA: 121] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2012] [Revised: 01/09/2013] [Accepted: 01/15/2013] [Indexed: 01/12/2023]
Abstract
There is growing evidence that vitamin D is a neuroactive steroid capable of regulating multiple pathways important for both brain development and mature brain function. In particular, there is evidence from rodent models that prenatal vitamin D deficiency alters the development of dopaminergic pathways and this disruption is associated with altered behavior and neurochemistry in the adult brain. Although the presence of the vitamin D receptor (VDR) has been noted in the human substantia nigra, there is a lack of direct evidence showing that VDR is present in dopaminergic cells. Here we confirm that the VDR is present in the nucleus of tyrosine hydroxylase (TH)-positive neurons in both the human and rat substantia nigra, and it emerges early in development in the rat, between embryonic day 12 (E12) and E15. Consistent evidence based on immunohistochemistry, real-time PCR and western blot confirmed a pattern of increasing VDR expression in the rat midbrain until weaning. The nuclear expression of VDR in TH-positive neurons during critical periods of brain development suggests that alterations in early life vitamin D status may influence the orderly development of dopaminergic neurons.
Collapse
Affiliation(s)
- X Cui
- Queensland Brain Institute, The University of Queensland, Qld 4072, Australia
| | | | | | | | | | | |
Collapse
|
24
|
Abstract
OBJECTIVE Delusional-like experiences (DLE) are common in the general community and are associated with a family history of mental illness. The aim of this study was to estimate the heritability of DLE. METHOD The Peter's Delusional Inventory (PDI) was administered to a population-based cohort of mothers (n = 2861, aged 35-67 years) and their adult offspring (n = 3079, aged 18-23 years). Heritability of DLE was estimated from the sum scores of the 21 item PDI under the assumption that the covariance between mother-offspring scores is attributable to shared additive genetic factors. RESULTS The means (medians and standard deviations) for the total PDI scores for the mothers and their offspring were 3.6 (3.0, 3.0) and 5.0 (4.0, 3.5), respectively. The Pearson correlation coefficient between mother and offspring PDI scores was 0.17 (P < 0.001). The heritability was estimated to be 0.35 (standard error 0.04). CONCLUSION Heritable factors contribute to over a third of the variance of PDI scores in this population. In light of the association between a family history of a wide range of mental disorders and DLE, these experiences may represent a useful quantitative endophenotype for genetic studies of common mental disorders in population settings.
Collapse
Affiliation(s)
- D Varghese
- Metro South Mental Health, Princess Alexandra Hospital, Brisbane, Qld, Australia.
| | | | | | | | | | | |
Collapse
|
25
|
Abstract
OBJECTIVE To explore changes in the diagnosed incidence of early onset schizophrenia (EOS) from 1971 to 2010. METHOD Examination of incidence rates of schizophrenia in patients under 18 years of age, using a nationwide, population-based, mental health register. RESULTS The age-standardized incidence rate (IR) of EOS in the period 1971-2010 was 3.17 (95% CI: 3.16, 3.18) per 100 000 person years in the age group 0-18 years, and 9.10 (95% CI: 9.00, 9.21) in the age group 12-18 years. In the period 1971-1993, the age-standardized IR of EOS was 1.80 (95% CI: 1.79, 1.82) per 100 000 person years in the age group 0-18 years, and 5.02 (95% CI: 4.92, 5.11) in the age group 12-18 years. In the period 1994-2010, the age-standardized IR of EOS was 5.15 (95% CI: 5.10, 5.20) per 100 000 person years in the age group 0-18 years, and 15.73 (95% CI: 15.22, 16.22) in the age group 12-18 years. The IR was higher for males than females in the periods 1971-1993 and 1971-2010, but in the period 1994-2010 the IR was higher for females than males. CONCLUSION In recent years, the diagnosed incidence of EOS has increased and the usual male excess has disappeared. The changes in IR could be a result of changes in the diagnostic system, increased awareness of early psychosis or a reflection of actual underlying incidence of the disorder.
Collapse
Affiliation(s)
- N Okkels
- Unit for Psychiatric Research, Aalborg Psychiatric Hospital, Aarhus University Hospital, Aalborg, Denmark.
| | | | | | | | | |
Collapse
|
26
|
McGrath JJ, Savage DB, Godwin IR. The potential for pharmacological supply of 25-hydroxyvitamin D to increase phosphorus utilisation in cattle. Anim Prod Sci 2013. [DOI: 10.1071/an13193] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Phosphorus (P) is recommended as a supplement for beef cattle grazing rangelands and for dairy cows grazing pastures. However, existing supplementation mechanisms are wasteful, labour intensive, and are becoming increasingly expensive. Cattle have an inability to absorb or retain >70% of the P they consume. Therefore, the need for supplementation could be reduced if the utilisation of dietary P was increased. Vitamin D and its metabolites are involved in the absorption and metabolism of calcium (Ca) and P. However, the use of vitamin D for improving utilisation of P is novel. This review presents information gathered from various studies that demonstrate the potential for vitamin D metabolites to increase P utilisation. The concentration of dietary Ca is demonstrated to be the controlling element for utilisation of endogenous sources of vitamin D. Therefore, the use of exogenous sources of vitamin D in greater than normal concentration is required to overcome the suppression of active absorption mechanisms by normal calcaemia. Use of 25-hydroxyvitamin D in sufficient doses has been shown to increase active absorption of both Ca and P and therefore potentially provide a method of increasing utilisation of existing sources of P or increase the utilisation of P supplements for cattle.
Collapse
|
27
|
McGrath JJ, Savage DB, Nolan JV, Elliott R. Phosphorus and calcium retention in steers fed a roughage diet is influenced by dietary 25OH-vitamin D. Anim Prod Sci 2012. [DOI: 10.1071/an11293] [Citation(s) in RCA: 7] [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
Active absorption of phosphorus (P) from the alimentary tract is promoted by increased concentrations of active vitamin D [1,25(OH)2D3] in blood; however, the production of this active vitamin is determined by plasma concentrations of calcium (Ca) and not P. As a consequence, diets of adequate Ca content, but insufficient P, will not promote active P absorption. Dietary supplements of 25OH-vitamin D (25OHD), the precursor of 1,25(OH)2D3, may stimulate P absorption and P retention of ruminants consuming diets marginally deficient in P. To evaluate this hypothesis, steers (n = 18) were fed a pelleted low-quality roughage diet containing an adequate Ca concentration (0.68%). Nine steers received a supplement of 25OHD mixed into their feed, at a rate of 3.25 mg/head.day, before pelleting. The other nine steers were fed the Control diet without supplementation. All steers were individually housed for 10 days before being moved into metabolism crates for a further 3-day period. The steers which received the diet containing 25OHD exhibited increased retention of P and Ca, ~4 and 3 g/day, respectively. Blood samples were taken before the adaptation period and then daily during the period in the metabolism crates. Plasma concentrations of both P and Ca were increased by 25OHD supplementation throughout the collection period. Addition of 25OHD to the diet of grazing animals may reduce the need for P supplementation programs and improve productivity.
Collapse
|
28
|
Saha S, Scott JG, Varghese D, McGrath JJ. Socio-economic disadvantage and delusional-like experiences: a nationwide population-based study. Eur Psychiatry 2011; 28:59-63. [PMID: 22153729 DOI: 10.1016/j.eurpsy.2011.09.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2011] [Revised: 09/12/2011] [Accepted: 09/21/2011] [Indexed: 01/27/2023] Open
Abstract
PURPOSE Delusional-like experiences (DLE) have been associated with low income, suggesting that more broadly defined socio-economic disadvantage may be associated with these experiences. We had the opportunity to explore the association between DLE and both individual- and area-level measures of socio-economic disadvantage. METHOD Subjects were drawn from the Australian National Survey of Mental Health and Wellbeing 2007. The Composite International Diagnostic Interview was used to identify DLE, common psychiatric disorders, and physical disorders. Individual-level and area-level socio-economic disadvantage measures were available based on variables including income, educational attainment, employment status, and housing. We examined the relationship between the variables of interest using logistic regression, adjusting for potential confounding factors. RESULTS Of the 8773 subjects, 8.4% (n=776) positively endorsed one or more DLE. DLE screen items were more likely to be endorsed by those who were (a) younger, (b) never married, or widowed, separated or divorced status, (c) migrants, or (d) living in rented houses. There were significant associations between socio-economic disadvantage and increased DLE endorsement, and this was found for both individual-level and area-level measures of socio-economic disadvantage. In general, the associations remained significant after adjusting for a range of potential confounding factors and in planned sensitivity analyses. CONCLUSIONS DLE are associated with socio-economic disadvantage in the general population. We speculate that the link between socio-economic disadvantage and DLE may be mediated by psychosocial stress and general psychological distress.
Collapse
Affiliation(s)
- S Saha
- Queensland Centre for Mental Health Research, The Park Centre for Mental Health, Wacol, QLD 4076, Australia
| | | | | | | |
Collapse
|
29
|
Flatscher-Bader T, Foldi CJ, Chong S, Whitelaw E, Moser RJ, Burne THJ, Eyles DW, McGrath JJ. Increased de novo copy number variants in the offspring of older males. Transl Psychiatry 2011; 1:e34. [PMID: 22832608 PMCID: PMC3309504 DOI: 10.1038/tp.2011.30] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
The offspring of older fathers have an increased risk of neurodevelopmental disorders, such as schizophrenia and autism. In light of the evidence implicating copy number variants (CNVs) with schizophrenia and autism, we used a mouse model to explore the hypothesis that the offspring of older males have an increased risk of de novo CNVs. C57BL/6J sires that were 3- and 12-16-months old were mated with 3-month-old dams to create control offspring and offspring of old sires, respectively. Applying genome-wide microarray screening technology, 7 distinct CNVs were identified in a set of 12 offspring and their parents. Competitive quantitative PCR confirmed these CNVs in the original set and also established their frequency in an independent set of 77 offspring and their parents. On the basis of the combined samples, six de novo CNVs were detected in the offspring of older sires, whereas none were detected in the control group. Two of the CNVs were associated with behavioral and/or neuroanatomical phenotypic features. One of the de novo CNVs involved Auts2 (autism susceptibility candidate 2), and other CNVs included genes linked to schizophrenia, autism and brain development. This is the first experimental demonstration that the offspring of older males have an increased risk of de novo CNVs. Our results support the hypothesis that the offspring of older fathers have an increased risk of neurodevelopmental disorders such as schizophrenia and autism by generation of de novo CNVs in the male germline.
Collapse
Affiliation(s)
- T Flatscher-Bader
- Queensland Brain Institute, The University of Queensland, St Lucia, QLD, Australia,The Queensland Institute of Medical Research, Herston, QLD, Australia
| | - C J Foldi
- Queensland Brain Institute, The University of Queensland, St Lucia, QLD, Australia
| | - S Chong
- The Queensland Institute of Medical Research, Herston, QLD, Australia
| | - E Whitelaw
- The Queensland Institute of Medical Research, Herston, QLD, Australia
| | | | - T H J Burne
- Queensland Brain Institute, The University of Queensland, St Lucia, QLD, Australia,Queensland Centre for Mental Health Research, The Park Centre for Mental Health, Wacol, QLD, Australia
| | - D W Eyles
- Queensland Brain Institute, The University of Queensland, St Lucia, QLD, Australia,Queensland Centre for Mental Health Research, The Park Centre for Mental Health, Wacol, QLD, Australia
| | - J J McGrath
- Queensland Brain Institute, The University of Queensland, St Lucia, QLD, Australia,Queensland Centre for Mental Health Research, The Park Centre for Mental Health, Wacol, QLD, Australia,Discipline of Psychiatry, The University of Queensland, St Lucia, QLD, Australia,Queensland Brain Institute, The University of Queensland, St Lucia, Queensland 4072, Australia. E-mail:
| |
Collapse
|
30
|
Abstract
Waddington's original description of canalization refers to the ability of an organism to maintain phenotypic fidelity in the face of environmental and/or genetic perturbation. Development of the human brain requires exposure to a 'wild-type' environment-one that supports the optimal set of instructions for development. Recently derived brain structures in our species, such as the expanded neocortex, may be more vulnerable to decanalization because there has been insufficient time to evolve buffering capacity. On the basis of modern notions of decanalization, we provide perspectives on selected environmental and genetic risk factors for schizophrenia, and we discuss strengths and weaknesses of this conceptual framework. We argue that if we are to build a solid foundation for translational psychiatry, we must explore models that attempt to capture the complexity of the interaction between genetic and non-genetic risk factors in mediating and modulating brain development.
Collapse
Affiliation(s)
- J J McGrath
- Queensland Brain Institute, University of Queensland, St Lucia, QLD, Australia.
| | - A J Hannan
- Howard Florey Institute, Florey Neuroscience Institutes, University of Melbourne, Melbourne, VIC, Australia
| | - G Gibson
- School of Biology, Georgia Institute of Technology, Atlanta, GA, USA
| |
Collapse
|
31
|
Maximova K, McGrath JJ, Barnett T, O'Loughlin J, Paradis G, Lambert M. Do you see what I see? Weight status misperception and exposure to obesity among children and adolescents. Int J Obes (Lond) 2008; 32:1008-15. [PMID: 18317474 DOI: 10.1038/ijo.2008.15] [Citation(s) in RCA: 165] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
OBJECTIVE Obesity prevention in childhood is important. However, changing children's lifestyle behaviors to reduce overweight is a substantial challenge. Accurately perceiving oneself as overweight/obese has been linked to greater motivation to change lifestyle behaviors. Children and adolescents may be less likely to perceive themselves as overweight/obese if they are exposed to overweight/obese people in their immediate environments. This study examined whether youth who are exposed to overweight parents and schoolmates were more likely to misperceive their own weight status. DESIGN The Quebec Child and Adolescent Health and Social Survey was a provincially representative, school-based survey of children and adolescents conducted between January and May 1999. SUBJECTS 3665 children and adolescents (age 9, n=1267; age 13, n=1186; age 16, n=1212) from 178 schools. Mean body mass index (BMI) was 17.5, 20.6 and 22.2 kg/m(2), respectively. MEASUREMENTS The misperception score was calculated as the standardized difference between self-perception of weight status (Stunkard Body Rating Scale) and actual BMI (from measured height and weight). Exposure to obesity was based on parent and schoolmate BMI. RESULTS Overweight and obese youth were significantly more likely to misperceive their weight compared with non-overweight youth (P<0.001). Multilevel modeling indicated that greater parent and schoolmate BMI were significantly associated with greater misperception (underestimation) of weight status among children and adolescents. CONCLUSION Children and adolescents who live in environments in which people they see on a daily basis, such as parents and schoolmates, are overweight/obese may develop inaccurate perceptions of what constitutes appropriate weight status. Targeting misperception may facilitate the adoption of healthy lifestyle behaviors and improve the effectiveness of obesity prevention interventions.
Collapse
Affiliation(s)
- K Maximova
- Department of Epidemiology and Biostatistics, McGill University, Montréal, Canada.
| | | | | | | | | | | |
Collapse
|
32
|
Abstract
Based on Boutron's semi-empirical crystallization theory, a quantitative microscopic imaging method was developed to determine the quantity of ice in thin films of vitrification solutions. A universal equation was obtained for various vitrification solutions. The new method was applied to determine the ice quantity and critical cooling rates for two new vitrification solutions. This new method has several advantages including the fact that it is cheaper than differential scanning calorimetry (DSC) and that it can be used to study vitrification solutions with critical cooling rates extending beyond the maximum cooling rate of a typical DSC system.
Collapse
Affiliation(s)
- B L Liu
- Institute of Cryomedicine, Shanghai University of Science and Technology, Shanghai, 200093, China, Department of Aerospace and Mechanical Engineering, University of Arizona, Tucson, AZ 85721, USA
| | | |
Collapse
|
33
|
Liu BL, McGrath JJ. Effects of freezing on the cytoskeleton, focal adhesions and gap-junctionsin murine osteoblast cultures. Conf Proc IEEE Eng Med Biol Soc 2007; 2005:4896-9. [PMID: 17281340 DOI: 10.1109/iembs.2005.1615570] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Understanding the ultra-structural response of cells to the cryopreservation process is important for designing cryopreservation strategies for cells and tissues. Cell-cell interaction and cell-scaffold interactions alter cryopreservation response and, in turn, the cellular structures involved in adhesion and intercellular contact are targets of cryopreservation-induced damage. Immuno-fluorescence was used to assess the status of the actin filaments, vinculin (focal adhesion) and connexin-43 (gap junction) of murine osteoblasts attached to hydroxyapatite (HA) discs glass coverslips for a two-step freezing process. The freezing process de-polymerized and distorted the F-actin of dead cells, while that of live cells has little change. Vinculin and connexin-43 structures were rarely seen in dead cells, a portion of vinculin and connexin-43 remained in live cells. These results suggest that focal adhesions and gap junctions may support the cells robustness during cryopreservation. The present study helps investigate the damage mechanism of attached cells during freezing process.
Collapse
Affiliation(s)
- B L Liu
- Institute of Cryomedicine, Shanghai University of Science and Technology, Shanghai, 200093, China; Department of Aerospace and Mechanical Engineering, University of Arizona, Tucson, AZ 85721
| | | |
Collapse
|
34
|
Abstract
OBJECTIVE The aim of this study was to examine the association between latitude and the incidence and prevalence of schizophrenia based on two recently published systematic reviews. METHOD The analyses were based on 353 incidence rates (from 68 studies) and 258 prevalence estimates (from 94 studies). Exact latitude values were used for cities, and geocentroid values for other sites. Based on three equal latitude bands, we compared the frequency measures of schizophrenia for persons, males and females when adjusted for within-study variation. RESULTS Prevalence estimates from sites in the high-latitude band were significantly higher when compared with lower bands for persons, males and females. Incidence rates were positively associated with absolute latitude for males, but neither for females nor persons. CONCLUSION Variables that have latitude gradients warrant closer inspection in schizophrenia epidemiology.
Collapse
Affiliation(s)
- S Saha
- Queensland Centre for Mental Health Research, The Park Centre for Mental Health, Wacol, QLD, Australia
| | | | | | | |
Collapse
|
35
|
Castle DJ, Jablensky A, McGrath JJ, Carr V, Morgan V, Waterreus A, Valuri G, Stain H, McGuffin P, Farmer A. The diagnostic interview for psychoses (DIP): development, reliability and applications. Psychol Med 2006; 36:69-80. [PMID: 16194284 DOI: 10.1017/s0033291705005969] [Citation(s) in RCA: 281] [Impact Index Per Article: 15.6] [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: 11/06/2022]
Abstract
BACKGROUND We describe the development, reliability and applications of the Diagnostic Interview for Psychoses (DIP), a comprehensive interview schedule for psychotic disorders. METHOD The DIP is intended for use by interviewers with a clinical background and was designed to occupy the middle ground between fully structured, lay-administered schedules, and semi-structured, psychiatrist-administered interviews. It encompasses four main domains: (a) demographic data; (b) social functioning and disability; (c) a diagnostic module comprising symptoms, signs and past history ratings; and (d) patterns of service utilization and patient-perceived need for services. It generates diagnoses according to several sets of criteria using the OPCRIT computerized diagnostic algorithm and can be administered either on-screen or in a hard-copy format. RESULTS The DIP proved easy to use and was well accepted in the field. For the diagnostic module, inter-rater reliability was assessed on 20 cases rated by 24 clinicians: good reliability was demonstrated for both ICD-10 and DSM-III-R diagnoses. Seven cases were interviewed 2-11 weeks apart to determine test-retest reliability, with pairwise agreement of 0.8-1.0 for most items. Diagnostic validity was assessed in 10 cases, interviewed with the DIP and using the SCAN as 'gold standard': in nine cases clinical diagnoses were in agreement. CONCLUSIONS The DIP is suitable for use in large-scale epidemiological studies of psychotic disorders, as well as in smaller studies where time is at a premium. While the diagnostic module stands on its own, the full DIP schedule, covering demography, social functioning and service utilization makes it a versatile multi-purpose tool.
Collapse
Affiliation(s)
- D J Castle
- University of Melbourne and Mental Health Research Institute, Melbourne, Australia
| | | | | | | | | | | | | | | | | | | |
Collapse
|
36
|
Handoko HY, Nancarrow DJ, Mowry BJ, McGrath JJ. Polymorphisms in the vitamin D receptor and their associations with risk of schizophrenia and selected anthropometric measures. Am J Hum Biol 2006; 18:415-7. [PMID: 16634022 DOI: 10.1002/ajhb.20504] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
The association between vitamin D levels and skeletal growth has long been recognized. However, exposure to low levels of vitamin D during early life is also known to alter brain development, and is a candidate risk factor for schizophrenia. This study examines the association between four polymorphisms in the vitamin D receptor (VDR) and 1) risk of schizophrenia, and 2) three anthropometric variables (height, head size, and head shape). Four single-nucleotide polymorphisms (SNPs; rs10735810/FokI, rs1544410/BsmI, rs7975232/ApaI, and rs731236/TaqI) in the VDR gene were genotyped in 179 individuals with schizophrenia and 189 healthy controls. No significant associations were detected between any of the four VDR SNPs and risk of schizophrenia. Patients were slightly but significantly shorter compared to controls. Of the four SNPs, only rs10735810/FokI was associated with any of the anthropometric measures: the M4 isoform of this SNP was significantly associated with larger head size (P = 0.002). In light of the evidence demonstrating a role for vitamin D during brain development, the association between polymorphisms in VDR and brain development warrants closer scrutiny.
Collapse
Affiliation(s)
- H Y Handoko
- Queensland Centre for Mental Health Research, Park Centre for Mental Health, Wacol, Queensland 4076, Australia
| | | | | | | |
Collapse
|
37
|
|
38
|
Féron F, Burne THJ, Brown J, Smith E, McGrath JJ, Mackay-Sim A, Eyles DW. Developmental Vitamin D3 deficiency alters the adult rat brain. Brain Res Bull 2005; 65:141-8. [PMID: 15763180 DOI: 10.1016/j.brainresbull.2004.12.007] [Citation(s) in RCA: 200] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2004] [Revised: 10/28/2004] [Accepted: 12/14/2004] [Indexed: 12/13/2022]
Abstract
There is growing evidence that Vitamin D(3) (1,25-dihydroxyvitamin D(3)) is involved in brain development. We have recently shown that the brains of newborn rats from Vitamin D(3) deficient dams were larger than controls, had increased cell proliferation, larger lateral ventricles, and reduced cortical thickness. Brains from these animals also had reduced expression of nerve growth factor (NGF) and glial cell line-derived neurotrophic factor. The aim of the current study was to examine if there were any permanent outcomes into adulthood when the offspring of Vitamin D(3) deficient dams were restored to a normal diet. The brains of adult rats were examined at 10 weeks of age after Vitamin D(3) deficiency until birth or weaning. Compared to controls animals that were exposed to transient early Vitamin D(3) deficiency had larger lateral ventricles, reduced NGF protein content, and reduced expression of a number genes involved in neuronal structure, i.e. neurofilament or MAP-2 or neurotransmission, i.e. GABA-A(alpha4). We conclude that transient early life hypovitaminosis D(3) not only disrupts brain development but leads to persistent changes in the adult brain. In light of the high incidence of hypovitaminosis D(3) in women of child-bearing age, the public health implications of these findings warrant attention.
Collapse
Affiliation(s)
- F Féron
- Centre for Molecular Neurobiology, School of Biomolecular and Biomedical Science, Griffith University, Brisbane, Qld 4111, Australia
| | | | | | | | | | | | | |
Collapse
|
39
|
Abstract
OBJECTIVE Science needs to constantly match research models against the data. With respect to the epidemiology of schizophrenia, the widely held belief that the incidence of schizophrenia shows little variation may no longer be supported by the data. The aims of this paper are (i) to explore data-vs.-belief mismatch with respect to the incidence of schizophrenia, and (ii) to speculate on the causes and consequences of such discrepancies. METHOD Based on a recently published systematic review of the incidence of schizophrenia, the distribution of incidence rates around the world was examined. In order to examine if the incidence of schizophrenia differed by sex, male vs. female risk ratios were generated. RESULTS The distribution of incidence rates for schizophrenia is asymmetrical with many high rates skewing the distribution. Based on the central 80% of rates, the incidence of schizophrenia varies in a five-fold range (between 7.7 and 43.0 per 100,000). Males have a significantly higher incidence of schizophrenia compared with females (median male to female risk ratio = 1.4), and this difference could not be accounted for by diagnostic criteria or age range. CONCLUSION The beliefs that (i) the incidence of schizophrenia does not vary between sites and (ii) males and females are equally affected, may have persisted because of an unspoken deeper belief that schizophrenia is an egalitarian and exceptional disorder. Our ability to generate productive hypotheses about the aetiology of schizophrenia rests on an accurate appraisal of the data. Beliefs not supported by data should be identified and relabelled as myths.
Collapse
Affiliation(s)
- J J McGrath
- Queensland Centre for Mental Health Research, The Park Centre for Mental Health, Wacol, QLD 4076, Australia.
| |
Collapse
|
40
|
Abstract
Several recent epidemiologic studies investigating the short-term effects of particulate matter (PM) concentrations have shown carbon monoxide (CO) to have the strongest and most consistent statistical relationship with hospital admissions for cardiac diseases. This article suggests a potential hypothesis for these epidemiologic observations. Oxygen (O2) is transported, in reversible combination with hemoglobin, from the lungs to the tissues, where it diffuses into cardiac myocytes. Within the myocyte a portion of the O2 diffuses directly to the mitochondria, while the remaining O2 is transported by facilitated diffusion bound to myoglobin, a heme protein found in muscle. Within the mitochondria, O2 reacts to produce adenosine triphosphate (ATP), a high-energy phosphate compound that provides energy for all cell functions. Accordingly, the sustained production of ATP depends on the continuous delivery of O2 to the mitochondria, and failure at any point in the O2 transport system will compromise ATP production and myocardial function. Myoglobin, a fundamental constituent of cardiac muscle is essential for delivering O2 to the mitochondria. Myoglobin concentrations in cardiac tissue were 50% lower in patients with heart failure than in patients dying from noncardiac causes. Myoglobin concentrations are also severely depressed in animal models of congestive heart failure. Consequently, the role of myoglobin as a cellular transporter of O2 is seriously impaired by heart disease. Carbon monoxide reduces O2 transport to the tissues and, within the tissues, binds with myoglobin to form carboxymyoglobin (COMb). Thus, in cardiac patients CO further exacerbates the disease-related loss of myoglobin function. This further disrupts O2 transport and promotes adverse consequences for the compromised heart. Moreover, during hypoxia CO has the propensity of leaving the blood and binding with myoglobin in the intracellular compartment. Elderly persons with preexisting cardiopulmonary disorders appear to be at maximum risk of harmful health effects due to ambient air pollution exposure. Many of these disorders result in generalized or regional hypoxia. It is reasonable to hypothesize that CO also moves out of the blood of these patients and into the heart tissue whenever they are under hypoxic stress, such as exercise. Accordingly, CO binds with the marginal myoglobin concentrations present in the hearts of cardiac patients and further compromises cardiac function, resulting in poor tolerance of activity. Therefore, reduced cardiac myoglobin in people with heart disease, further exacerbated by CO moving into the cardiac tissue during episodes of hypoxia, may account for the positive association between ambient CO concentrations and hospitalization for heart disease.
Collapse
Affiliation(s)
- J J McGrath
- Department of Physiology, Texas Tech University, Lubbock, Texas, USA.
| |
Collapse
|
41
|
Elizarrarás-Rivas J, Fragoso-Herrera R, Cerdán-Sánchez LF, Ramos-Zepeda R, Barajas-Barajas LO, Troyo-Sanromán R, McLean D, McGrath JJ. Minor physical anomalies and anthropometric measures in schizophrenia: a pilot study from Mexico. Schizophr Res 2003; 62:285-7. [PMID: 12837527 DOI: 10.1016/s0920-9964(02)00345-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
42
|
Abstract
Calcium-binding proteins (CBPs) such as calbindin, parvalbumin and calretinin are used as immunohistochemical markers for discrete neuronal subpopulations. They are particularly useful in identifying the various subpopulations of GABAergic interneurons that control output from prefrontal and cingulate cortices as well as from the hippocampus. The strategic role these interneurons play in regulating output from these three crucial brain regions has made them a focus for neuropathological investigation in schizophrenia. The number of pathological reports detailing subtle changes in these CBP-containing interneurons in patients with schizophrenia is rapidly growing. These proteins however are more than convenient neuronal markers. They confer survival advantages to neurons and can increase the neuron's ability to sustain firing. These properties may be important in the subtle pathophysiology of nondegenerative phenomena such as schizophrenia. The aim of this review is to introduce the reader to the functional properties of CBPs and to examine the emerging literature reporting alterations in these proteins in schizophrenia as well as draw some conclusions about the significance of these findings.
Collapse
Affiliation(s)
- D W Eyles
- Queensland Centre for Schizophrenia Research, Wolston Park Hospital, Wacol, Q4076, Australia.
| | | | | |
Collapse
|
43
|
|
44
|
Abstract
BACKGROUND Tardive dyskinesia remains a troublesome adverse effect of conventional antipsychotic (neuroleptic) medication. It has been proposed that tardive dyskinesia could have a component of central cholinergic deficiency. Cholinergic drugs have been used to treat tardive dyskinesia. OBJECTIVES To determine the effects of cholinergic drugs (arecoline, choline, deanol, lecithin, meclofenoxate, physostigmine, RS 86, tacrine, metoxytacrine, galantamine, ipidacrine, donepezil, rivastigmine, eptastigmine, metrifonate, xanomeline, cevimeline) for treating neuroleptic-induced tardive dyskinesia in people with schizophrenia or other chronic mental illness. SEARCH STRATEGY An electronic search of the Cochrane Schizophrenia Group's register (October 2001) was undertaken. This register is assembled by extensive searches for randomised controlled trials in many electronic databases, registers of conference proceedings and dissertations. References of all identified studies were searched for further trial citations. Principal authors of trials were contacted. SELECTION CRITERIA Reports identified by the search were included if they were of controlled trials dealing with people with neuroleptic-induced tardive dyskinesia and chronic mental illness, who had been randomly allocated to either a cholinergic agent or to a placebo or no intervention. Two reviewers independently assessed methodological quality of trials. DATA COLLECTION AND ANALYSIS Two researchers extracted data and, where possible, estimated relative risks (RR) or weighted mean differences (WMD), with 95% confidence intervals (CI). Data were analysed on an intention-to-treat basis, with the assumption that people who dropped out had no improvement. MAIN RESULTS We included eleven studies investigating the use of older cholinergic drugs compared with placebo. Most studies involved small numbers of participants (5-20 people). We found no completed trials of the new cholinergic Alzheimer drugs for the treatment of tardive dyskinesia. Cholinergic drugs did not result in any substantial improvement in tardive dyskinesia symptoms when compared with placebo (8 RCTs, 170 people, RR no important improvement 0.84 CI 0.68 to 1.04). Neither did tardive dyskinesia symptoms increase (7 RCTs, 137 people, RR deterioration in tardive dyskinesia 1.17 CI 0.55 to 2.50). Pooled results for endpoint AIMS scores were equivocal (4 RCTs, 86 people, WMD -0.19 CI -0.53 to 0.14). Deanol may cause gastric adverse effects (5 RCTs, 61 people, RR 9.00 CI 0.55-148) and other adverse effects such as sedation and peripheral cholinergic effects (6 RCTs, 94 people, RR 6.83 CI 0.99-47). One study reported on global outcome. Meclofenoxate was neither clearly helpful nor harmful when compared with placebo (1 RCT, 60 people, RR not of global benefit 0.89 CI 0.59 to 1.32). We found no difference between people allocated cholinergics and those given placebo for the outcome of leaving the study before completion (10 RCTs, 240 people, RR 0.52 CI 0.21 to 1.33). REVIEWER'S CONCLUSIONS Tardive dyskinesia remains a major public health problem. The clinical effects of older cholinergic drugs are unclear, as too few, too small studies leave many questions unanswered. Cholinergic drugs should remain of interest to researchers and currently have little place in routine clinical work. However, with the advent of new cholinergic agents now used for treating Alzheimer's disease, scope exists for more informative trials. If these new cholinergic agents are to be investigated for treating people with tardive dyskinesia, their effects should be demonstrated in well-designed, conducted and reported randomised trials.
Collapse
Affiliation(s)
- I A Tammenmaa
- Department of Psychiatry, University of Helsinki, Lapinlahti Hospital, P.O.Box 320, FIN-00029 Helsinki University Central Hospital, Finland.
| | | | | | | |
Collapse
|
45
|
Abstract
Researchers in the Department of Mechanical Engineering seek to obtain a means to measure less than 3 mg of H2O that adheres to a metal surface as condensate. The objective is to calibrate optical reflectance measurements of an aluminum surface as a function of the condensate thickness present. Collaboration with the Hazardous Substance Research Center at Michigan State University results in the development of an indirect static headspace gas chromatographic technique capable of measuring H2O in low-milligram quantities. The technique utilizes manual headspace sampling, a megabore capillary column, and a flame ionization detector. A correlation of r2 = 0.999 is obtained for the calibration of the indirect measurement technique. The calibration of the analytical instrument demonstrates adequate precision (< +/- 50 microg at a 95% confidence interval) for such a heterogeneous sample. The calibration samples consist of a strip of aluminum metal, H2O, and pulverized calcium carbide to convert the H2O to acetylene. A scaled calibration technique is used to simplify handling trace water volumes. The surface reflectance measurements are found to correlate well (r2 = 0.935) with measurements of the condensate mass. This result facilitates the development of an optical mass-transfer measurement technique. This study focuses on the analytical method and its relationship with engineering research.
Collapse
Affiliation(s)
- P B Hoke
- Departments of Mechanical, Civil, and Environmental Engineering, the Great Lakes and Mid-Atlantic Hazardous Substance Research Center, Michigan State University, East Lansing 48824, USA
| | | | | |
Collapse
|
46
|
McGrath JJ, O'Brien WH. Pediatric impedance cardiography: temporal stability and intertask consistency. Psychophysiology 2001; 38:479-84. [PMID: 11352136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/16/2023]
Abstract
The pathogenic processes responsible for cardiovascular disease have their origins in childhood. Although children's measures of heart rate and blood pressure have been found to be reliable, the reliability of impedance cardiography derived measures have not been evaluated. Thirty-three children, ages 8-11 participated in two sessions. Stressors included serial subtraction, isometric handgrip, and mirror-image tracing. Results indicated the impedance measures showed moderately high temporal stability (average scores r(avg) = .74; difference scores r(avg) = .53) and intertask consistency (average scores r(avg)= .78; difference scores r(avg)= .53). Blood pressure demonstrated the lowest reliability; Heather index, preejection period, and stroke volume demonstrated the highest. These findings suggest children's cardiovascular reactivity to laboratory stressors can be reliably and consistently assessed using impedance cardiography.
Collapse
Affiliation(s)
- J J McGrath
- Department of Psychology, Bowling Green State University, Ohio 43403, USA.
| | | |
Collapse
|
47
|
|
48
|
Vora SA, Daly BD, Blaszkowsky L, McGrath JJ, Bankoff M, Supran S, Dipetrillo TA. High dose radiation therapy and chemotherapy as induction treatment for stage III nonsmall cell lung carcinoma. Cancer 2000; 89:1946-52. [PMID: 11064351 DOI: 10.1002/1097-0142(20001101)89:9<1946::aid-cncr10>3.0.co;2-1] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
BACKGROUND The current study was conducted to review the authors' experience in treating consecutive patients with American Joint Committee on Cancer (1997 revision) Stage III nonsmall cell lung carcinoma with aggressive preoperative chemoradiation followed by surgical resection. METHODS The records of all patients who received preoperative chemoradiation were evaluated. Patients received 2 cycles of concurrent cisplatin and etoposide with 5940 centigrays of radiation therapy. They then were reevaluated to determine whether they were surgical candidates. If so, resection of the primary tumor with mediastinal lymph node dissection was performed 4-6 weeks after the completion of preoperative treatment. After adequate healing, an additional four cycles of cisplatin/etoposide or carboplatin/paclitaxel was given. RESULTS Forty-two patients received preoperative chemoradiation, 33 of whom underwent surgical resection (79%), including 9 patients who underwent pneumonectomies. Complete pathologic responses were observed in 27% of these patients. Postoperative complications were noted in 21% of the patients and included persistent air leak, supraventricular arrhythmia, and empyema. There were no reported treatment-related deaths. The median follow-up was 26 months. The overall 5-year survival rate for all patients was 36.5% and was 45. 3% for patients who underwent resection. A trend toward increased 5-year survival was observed in patients who had a complete pathologic response (57.1%). Univariate analysis revealed the N stage classification to be significant for predicting a complete response. Patterns of failure revealed the brain to be the most common site of first recurrence (50%) and the only site of recurrence in 36% of patients. There was only one case of local failure. CONCLUSIONS Preoperative chemoradiation using high radiation doses is feasible with acceptable toxicity. The results of the current study suggest an increased complete pathologic response rate and increased overall survival rate compared with reports in the published literature.
Collapse
Affiliation(s)
- S A Vora
- Department of Radiation Oncology, New England Medical Center, Tufts University School of Medicine, Boston, Massachusetts, USA.
| | | | | | | | | | | | | |
Collapse
|
49
|
Abstract
BACKGROUND Researchers have consistently found that people with schizophrenia score more poorly than others on a wide array of cognitive tasks and that these deficits persist even when the illness is in remission. The perceived impact of cognitive impairment on day-to-day functioning has led to the development of cognitive rehabilitation techniques intended to remedy these impairments, and thus improve the functioning of people with schizophrenia. OBJECTIVES To determine whether the use of cognitive rehabilitation techniques is associated with improvement in people with schizophrenia and related conditions. SEARCH STRATEGY Electronic searches of Biological Abstracts (1982-1997), the Cochrane Schizophrenia Group's Register of trials (2000), EMBASE (1980-1997), LILACS (1982-1997), MEDLINE (1966-1997), PsycLIT (1974-1997) and SCISEARCH (1997) were undertaken. References of all identified studies were handsearched and the first author of each included trial was contacted. SELECTION CRITERIA The reviewers included randomised trials investigating the impact of cognitive rehabilitation on people with schizophrenia, or related conditions, compared to a placebo intervention, another intervention or standard treatment. This version of the review does not include comparisons of different types of cognitive rehabilitation. DATA COLLECTION AND ANALYSIS Relevant studies were identified and data extracted reliably by two reviewers working independently. In studies which did not specify the reasons for participants dropping out, we assumed that those who had dropped out had experienced no change in the outcome measures. Where possible, Peto odds ratios (OR) and mean differences (MD) were calculated with their 95% confidence intervals (CI). MAIN RESULTS Three small studies met the inclusion criteria. Two compared cognitive rehabilitation to a placebo intervention (total n=84), and the other to occupational therapy (n=33). Although cognitive rehabilitation was as acceptable as placebo and occupational therapy, with low attrition in both groups, no effects were demonstrated on measures of mental state, social behaviour, or cognitive functioning. An effect, in favour of cognitive rehabilitation, on a measure of self-esteem (Rosenberg Self-Esteem Scale, MD 6.3 CI 1.07-11.53 ) is worthy of replication in any future trials. REVIEWER'S CONCLUSIONS Data are inconclusive and provide no evidence for or against cognitive rehabilitation as a treatment for schizophrenia.
Collapse
Affiliation(s)
- R L Hayes
- Queensland Centre for Schizophrenia Research, Wolston Park Hospital, Wacol, Queensland, Australia, 4076.
| | | |
Collapse
|
50
|
Abstract
BACKGROUND Tardive dyskinesia (TD) is a potentially disfiguring movement disorder of the orofacial region often caused by use of neuroleptic drugs. A wide range of strategies have been used to help manage TD and, for those who are unable to have their antipsychotic medication stopped or substantially changed, the calcium-channel blocking group of drugs (diltiazem, nifedipine, nimodipine, verapamil) has been suggested as a useful adjunctive treatment. OBJECTIVES To determine the clinical efficacy of calcium-channel blockers in people with neuroleptic-induced tardive dyskinesia (TD) and schizophrenia or other chronic mental illnesses. SEARCH STRATEGY Electronic searches of Biological Abstracts (1982-1995), Cochrane Schizophrenia Group's Register of trials (1995), EMBASE (1980-1995), LILACS (1982-1996), MEDLINE (1966-1995), PsycLIT (1974-1995), and SCISEARCH were undertaken. References of all identified studies were searched for further trial citations. Principal authors of trials were contacted. SELECTION CRITERIA The inclusion criteria for all relevant randomised studies were that they should focus on people with schizophrenia or other chronic mental illnesses, with neuroleptic-induced TD and compare the use of calcium-channel blockers to placebo or no intervention. DATA COLLECTION AND ANALYSIS No data could be extracted from the two randomised controlled trials that are currently awaiting assessment. The authors have been contacted to provide the relevant information. MAIN RESULTS No studies met the entry criteria. No data were synthesized. REVIEWER'S CONCLUSIONS Based on currently available information, no confident statement can be made about the effectiveness of calcium-channel blockers for treating people with neuroleptic-induced tardive dyskinesia. Before evaluation of these drugs in larger randomised controlled trials, clinicians should carefully weigh up their possible benefits against their potential adverse effects.
Collapse
Affiliation(s)
- K V Soares
- Dov Hoz Street, 27/16, Kfar Saba, ISRAEL, 44356.
| | | |
Collapse
|