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Xiao H, Gao Y, Liu L, Li Y. Association between polymorphisms in the promoter region of the apolipoprotein E (APOE) gene and Alzheimer's disease: A meta-analysis. EXCLI JOURNAL 2017; 16:921-938. [PMID: 28900374 PMCID: PMC5579398 DOI: 10.17179/excli2017-289] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Accepted: 06/09/2017] [Indexed: 11/21/2022]
Abstract
Several studies have evaluated the role of polymorphisms in the promoter region of APOE gene that encodes apolipoprotein E (APOE) and the susceptibility to Alzheimer's disease (AD). The aim of this literature review and meta-analysis was to investigate the relationship between the APOE promoter region single nucleotide polymorphisms (SNPs) (rs449647, -491A/T; rs769446, -427T/C and rs405509 -219T/G) and the risk of developing AD. Eligible controlled studies published up to November 2016 were retrieved from main online scientific and medical databases. Odds ratio (OR) and 95 % confidence interval (CI) were used to calculate the strength of the relationship. A total of 23 publications (19 for rs449647, ten for rs769446 and ten for rs405509) were retrieved that included 5,703 patients with AD and 5,692 controls. The C allele of the rs769446 variant of the promoter region of APOE gene was significantly associated with an increase of risk of AD (OR = 1.271, 95 % CI = 1.114-1.449, P < 0.0001), while other genetic models of this variant were not related with susceptibility to AD. Rs449647 and rs405509 polymorphisms of APOE gene were not associated with an increase of risk of AD. The findings of this literature review and meta-analysis have shown that rs769446 polymorphism in the promoter region of APOE gene could be a risk factor for AD. Future large-scale studies on the role of polymorphisms in the promoter region of APOE gene in AD are still awaited.
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Affiliation(s)
- Hanyan Xiao
- Department of Neurology, Second Affiliated Hospital of Mudanjiang Medical University, Mudanjiang 157010, Heilongjiang, China
| | - Yifeng Gao
- Department of Respiratory Medicine, Second Affiliated Hospital of Mudanjiang Medical University, Mudanjiang 157010, Heilongjiang, China
| | - Lei Liu
- Department of Gastroenterology, Second Affiliated Hospital of Mudanjiang Medical University, Mudanjiang 157010, Heilongjiang, China
| | - Yan Li
- Mudanjiang Medical University Affiliated HongQi Hospital, Mudanjiang 157011, Heilongjiang, China, Department of General Surgery
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Limon-Sztencel A, Lipska-Ziętkiewicz BS, Chmara M, Wasag B, Bidzan L, Godlewska BR, Limon J. The algorithm for Alzheimer risk assessment based on APOE promoter polymorphisms. ALZHEIMERS RESEARCH & THERAPY 2016; 8:19. [PMID: 27193889 PMCID: PMC4872351 DOI: 10.1186/s13195-016-0187-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 09/27/2015] [Accepted: 04/19/2016] [Indexed: 11/10/2022]
Abstract
Background Over the past two decades, the APOE gene and its polymorphisms have been among the most studied risk factors of Alzheimer disease (AD) development; yet, there are discrepancies between various studies regarding their impact. For this reason, the evaluation of the APOE genotype has not been included in the current European Federation of Neurological Societies guidelines for AD diagnosis and management. This aim of this study was to add to this discussion by assessing the possible influence of multiple polymorphisms in the promoter region of the APOE gene and genotypes of its allele E on the risk for dementia. Methods We performed a comprehensive analysis of APOE gene polymorphisms, assessed the detected genotypes and correlated molecular findings with serum apolipoprotein E concentrations. The study comprised 110 patients with AD and 110 age-matched healthy individuals from the Polish population. Results Four polymorphisms of the APOE gene had minor allele frequency exceeding 5 % and were included in the analysis: −491A/T (rs449647), −427T/C (rs769446), −219T/G (rs405509) in the promoter region and +113G/C (rs440446) in intron 1. A protective effect of the −219G allele on AD development was observed. Also, the −491T and −219G alleles were found to be underrepresented in the carriers of the APOE E4 variant. On the basis of the genotype and linkage disequilibrium studies, a relative score was attributed to given genotypes with respect to the estimated probability of their protective effects against AD, giving rise to the ‘preventive score’. This ‘preventive score’, based on the total sums of the relative scores, expresses the protective effect deriving from the synergistic action of individual single-nucleotide polymorphisms. The ‘preventive score’ was identified as an independent predictive factor. Conclusions We propose a novel, more complex approach to AD risk assessment based on the additive effect of multiple polymorphic loci within the APOE promoter region, which on their own may have too weak an impact to reach the level of significance. This has potentially practical implications, as it may help to improve the informative potential of APOE testing in a clinical setting. Subsequent studies of the proposed system in large, multi-ethnic cohorts are necessary for its validation and to assess its potential practical value for clinical applications. Electronic supplementary material The online version of this article (doi:10.1186/s13195-016-0187-9) contains supplementary material, which is available to authorized users.
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Affiliation(s)
| | - Beata S Lipska-Ziętkiewicz
- Department of Biology and Genetics, Medical University of Gdansk, Debinki 1 Street, 80-210, Gdansk, Poland
| | - Magdalena Chmara
- Department of Biology and Genetics, Medical University of Gdansk, Debinki 1 Street, 80-210, Gdansk, Poland
| | - Bartosz Wasag
- Department of Biology and Genetics, Medical University of Gdansk, Debinki 1 Street, 80-210, Gdansk, Poland
| | - Leszek Bidzan
- Department of Developmental, Psychotic, and Geriatric Psychiatry, Medical University of Gdansk, Debinki 7 Street, 80-952, Gdansk, Poland
| | - Beata R Godlewska
- University Department of Psychiatry, University of Oxford, Oxford, OX3 7JX, UK
| | - Janusz Limon
- Department of Biology and Genetics, Medical University of Gdansk, Debinki 1 Street, 80-210, Gdansk, Poland.
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Achouri-Rassas A, Hadj Fredj S, Mrabet Khiari H, Bibi A, Siala H, Mrabet A, Messaoud T. Association between Alzheimer disease and the -491T allele of regulatory region polymorphism of Apolipoprotein E in a Tunisian population. Neurochem Res 2013; 39:244-7. [PMID: 24326531 DOI: 10.1007/s11064-013-1213-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2013] [Revised: 11/21/2013] [Accepted: 11/27/2013] [Indexed: 11/24/2022]
Abstract
The apolipoprotein E (APOE) is a well-established risk factor for late-onset Alzheimer's disease (AD). Several studies have attempted to confirm the association between the polymorphism located at position -491 in the transcriptional regulatory region of the APOE gene and AD. We examined in 85 AD patients and 90 control subjects of a Tunisian population the potential involvement of this polymorphism as a risk factor for AD, either through an independent effect or through interaction with the existing APOE ε4 allele risk. The T allele frequency was significantly higher in the AD patients group (45.3 %) than in the controls group (32.78 %) and may possibly constitute a significant risk factor for AD. The APOE ε4 allele did not influence the distribution of the -491 polymorphism after stratification.
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Affiliation(s)
- Afef Achouri-Rassas
- Neurological Department, Charles Nicolle Hospital, Boulevard du 9 Avril, 1006, Tunis, Tunisia,
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Bañares VG, Bardach A, Peterson G, Tavella MJ, Schreier LE. APOE −491 T allele may reduce the risk of atherosclerotic lesions among middle-aged women. Mol Cell Biochem 2011; 362:123-31. [DOI: 10.1007/s11010-011-1134-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2011] [Accepted: 10/22/2011] [Indexed: 01/10/2023]
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Palomer E, ILL-Raga G, Tajes M, Ramos-Fernández E, Bosch-Morató M, Guivernau B, Galán JJ, Clarimón J, Antúnez C, Boada M, Real LM, Fandos C, Muñoz FJ. PKR and PP1C Polymorphisms in Alzheimer’s Disease Risk. ACTA ACUST UNITED AC 2011. [DOI: 10.4236/nm.2011.23031] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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The APOE-491 A/T promoter polymorphism effect on cognitive profile of Alzheimer's patients. Neurosci Lett 2010; 472:199-203. [PMID: 20152880 DOI: 10.1016/j.neulet.2010.02.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2009] [Revised: 01/25/2010] [Accepted: 02/02/2010] [Indexed: 11/21/2022]
Abstract
Alzheimer's Disease (AD) is a neurodegenerative disorder with a complex aetiology displayed by multiple pathogenic factors. The APOE varepsilon4 allele represents the only established genetic risk factor for sporadic AD; in addition, previous findings on three single nucleotide polymorphisms (SNPs) located on the APOE promoter region, have led to a growing interest in their potential role in AD pathogenesis. The -491 A/T promoter polymorphism has been the one most frequently shown to be associated with AD, as it influences the APOE coding region transcription. The aim of this study was to evaluate the possible effect of the -491 A/T polymorphism on the cognitive profile of sporadic AD patients with a disease severity ranging from mild to moderate. Our results showed that patients carrying the -491 AA genotype had poorer cognitive performances than the -491 AT ones, statistically significant in demanding tests of visual attention, especially for the late-onset AD (LOAD). No further differences on cognitive profile were observed when stratifying AA and AT patients according to their APOE genotype. These results suggest a possible functional effect of the -491 A/T promoter on the neuropsychological performances of AD. This role seems to be independent of APOE genotype. In fact the effect of -491 A/T occurs predominantly on attention while the APOE varepsilon4 allele mainly affects memory performances. According to the biological effect exerted on APOE transcription, the -491 A/T polymorphism could be considered a disease modifier more than a risk factor for sporadic AD.
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The complex interaction between APOE promoter and AD: an Italian case-control study. Eur J Hum Genet 2009; 17:938-45. [PMID: 19172988 DOI: 10.1038/ejhg.2008.263] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
The single nucleotide polymorphisms (SNPs) rs449647, rs769446 and rs405509 in the promoter region of the APOE gene have been variously suggested to be epsilon 4-independent risk factors for Alzheimer's disease (AD). A previous Italian study found that the rs449647 was significantly associated with late-onset AD. The aim of this study was to verify whether these APOE promoter SNPs are genetic risk factors for AD and to investigate their interaction with the common APOE polymorphism. A total of 169 clinically diagnosed AD patients and 99 cognitively intact age-matched controls were included in the study. Significant associations with AD independent from sex, age and APOE/epsilon 4 status were found for rs449647 A/A and rs405509 G/G genotypes (positive), and rs449647 A/T and rs405509 T/T genotypes (negative). Haplotype frequency estimation at the APOE locus showed significant associations for the ATG4, ATT4 and ACG3 (positive) and ATT2, ATT3 and TCG3 (negative) haplotypes. Therefore this study confirms the role of the rs449647 A/A genotype as risk factor for AD in Italy and suggests that promoter genotypes and APOE haplotypes might have a complex function in AD-associated genetic risk factors.
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Woo D, Kaushal R, Chakraborty R, Woo J, Haverbusch M, Sekar P, Kissela B, Pancioli A, Jauch E, Kleindorfer D, Flaherty M, Schneider A, Khatri P, Sauerbeck L, Khoury J, Deka R, Broderick J. Association of apolipoprotein E4 and haplotypes of the apolipoprotein E gene with lobar intracerebral hemorrhage. Stroke 2005; 36:1874-9. [PMID: 16100021 DOI: 10.1161/01.str.0000177891.15082.b9] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND AND PURPOSE Conflicting reports in the literature exist with regard to the association of apolipoprotein E (apo E) alleles and lobar intracerebral hemorrhage (ICH). We genotyped 12 single-nucleotide polymorphisms in the 5' upstream regulatory, exonic, and intronic regions of the apo E gene and performed genotype and haplotype association analyses. METHODS We prospectively enrolled subjects with hemorrhagic stroke and matched them with 2 controls based on age, race, and sex. Each case was reviewed by a physician to determine case status and location of the ICH. Multivariate logistic-regression modeling with backward elimination was used to determine significant risk factors for lobar ICH. Associations at the genotype and haplotype levels and linkage disequilibrium were conducted according to standard statistical methods. RESULTS Between May 1997 and December 2002, 315 cases of ICH were recruited, of whom 107 were lobar ICH cases matched to 205 controls. No association was found for apo E2, E3, or E4 with nonlobar ICH. Independent, significant risk factors for lobar ICH included apo E4, untreated hypertension, anticoagulant use, a first-degree relative with ICH, and < or =high school education (compared with >high school education). Treated hypercholesterolemia compared with "no history of hypercholesterolemia" was associated with a decreased risk of lobar ICH. Haplotype association analysis demonstrated a significant association of the apo E gene with lobar ICH among whites (P<0.0001) and blacks (P=0.0024). CONCLUSIONS Apo E4 is independently associated with lobar ICH but not nonlobar ICH. Haplotypes of the apo E gene are associated with lobar ICH. Untreated hypertension is a risk factor for lobar ICH.
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Affiliation(s)
- Daniel Woo
- University of Cincinnati, Cincinnati, OH, USA.
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Nicodemus KK, Stenger JE, Schmechel DE, Welsh-Bohmer KA, Saunders AM, Roses AD, Gilbert JR, Vance JM, Haines JL, Pericak-Vance MA, Martin ER. Comprehensive association analysis of APOE regulatory region polymorphisms in Alzheimer disease. Neurogenetics 2004; 5:201-8. [PMID: 15455263 DOI: 10.1007/s10048-004-0189-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2004] [Accepted: 07/15/2004] [Indexed: 11/25/2022]
Abstract
Several recent case-control studies have examined the association between single nucleotide polymorphisms (SNPs) in the promoter region of the apolipoprotein E gene (APOE) and risk of Alzheimer disease (AD), with conflicting results. We assessed the relation between five APOE region SNPs and risk of AD in both case-control and family-based analyses. We observed a statistically significant association with the +5361T allele in the overall case-control analysis (P value=0.04) after adjusting for the known effect of the APOE-4 allele. Further analysis revealed this association to be limited to carriers of the APOE-4 allele. Age-stratified analyses in the patients with age at onset of 80 years or greater and age-matched controls showed that the -219T allele (P value=0.009) and the +113C allele (P value=0.03) are associated with increased risk of AD. Despite these findings, haplotype and family-based association analyses were unable to provide evidence that the APOE region SNPs influenced risk of AD independent of the APOE-4 allele. In addition to risk, we tested for association between the SNPs and age at onset of AD, but found no association in the case-control or family based analyses. In conclusion, SNPs +5361, or a SNP in strong linkage disequilibrium, may confer some additional risk for developing AD beyond the risk due to APOE-4; however, the effect independent of APOE-4 is likely to be small.
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Affiliation(s)
- Kristin K Nicodemus
- Department of Medicine and Center for Human Genetics, Duke University Medical Center, Durham, North Carolina 27710, USA
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Harris FM, Tesseur I, Brecht WJ, Xu Q, Mullendorff K, Chang S, Wyss-Coray T, Mahley RW, Huang Y. Astroglial regulation of apolipoprotein E expression in neuronal cells. Implications for Alzheimer's disease. J Biol Chem 2003; 279:3862-8. [PMID: 14585838 DOI: 10.1074/jbc.m309475200] [Citation(s) in RCA: 93] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Although apolipoprotein (apo) E is synthesized in the brain primarily by astrocytes, neurons in the central nervous system express apoE, albeit at lower levels than astrocytes, in response to various physiological and pathological conditions, including excitotoxic stress. To investigate how apoE expression is regulated in neurons, we transfected Neuro-2a cells with a 17-kilobase human apoE genomic DNA construct encoding apoE3 or apoE4 along with upstream and downstream regulatory elements. The baseline expression of apoE was low. However, conditioned medium from an astrocytic cell line (C6) or from apoE-null mouse primary astrocytes increased the expression of both isoforms by 3-4-fold at the mRNA level and by 4-10-fold at the protein level. These findings suggest that astrocytes secrete a factor or factors that regulate apoE expression in neuronal cells. The increased expression of apoE was almost completely abolished by incubating neurons with U0126, an inhibitor of extracellular signal-regulated kinase (Erk), suggesting that the Erk pathway controls astroglial regulation of apoE expression in neuronal cells. Human neuronal precursor NT2/D1 cells expressed apoE constitutively; however, after treatment of these cells with retinoic acid to induce differentiation, apoE expression diminished. Cultured mouse primary cortical and hippocampal neurons also expressed low levels of apoE. Astrocyte-conditioned medium rapidly up-regulated apoE expression in fully differentiated NT2 neurons and in cultured mouse primary cortical and hippocampal neurons. Thus, neuronal expression of apoE is regulated by a diffusible factor or factors released from astrocytes, and this regulation depends on the activity of the Erk kinase pathway in neurons.
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Affiliation(s)
- Faith M Harris
- Gladstone Institute of Neurological Disease, University of California, San Francisco, California 94141-9100, USA
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Parra-Bonilla G, Arboleda G, Yunis J, Solano E, Pardo R, Arango G, Hedmont D, Arboleda H. Haplogroup analysis of the risk associated with APOE promoter polymorphisms (-219T/G, -491A/T and -427T/C) in Colombian Alzheimer's disease patients. Neurosci Lett 2003; 349:159-62. [PMID: 12951193 DOI: 10.1016/s0304-3940(03)00816-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Results analyzing the association between polymorphisms in the promoter region of the apolipoprotein E (APOE) gene and Alzheimer's disease (AD) are contradictory. We studied the association of three polymorphisms in the APOE promoter (-219T/G, -491A/T and -427T/C) with AD in a sample of the Colombian population. The polymorphism -491A/T confers increased risk for AD associated with AA genotype independent of APOEe4 allele (odds ratio (OR): 2.64) and more pronounced in men (OR: 6.07). Genotypes TT and TG of -219T/G showed a significant association with AD, but this was lost in an adjusted model. We did not find any association with -427T/C polymorphism. Using a haplogroup analysis of the promoter polymorphisms, we further confirmed their independent contribution as genetic risk factors for AD.
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Rocchi A, Pellegrini S, Siciliano G, Murri L. Causative and susceptibility genes for Alzheimer's disease: a review. Brain Res Bull 2003; 61:1-24. [PMID: 12788204 DOI: 10.1016/s0361-9230(03)00067-4] [Citation(s) in RCA: 193] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Alzheimer's disease (AD) is the most common type of dementia in the elderly population. Three genes have been identified as responsible for the rare early-onset familial form of the disease: the amyloid precursor protein (APP) gene, the presenilin 1 (PSEN1) gene and the presenilin 2 (PSEN2) gene. Mutations in these genes, however, account for less than 5% of the total number of AD cases. The remaining 95% of AD patients are mostly sporadic late-onset cases, with a complex aetiology due to interactions between environmental conditions and genetic features of the individual. In this paper, we review the most important genes supposed to be involved in the pathogenesis of AD, known as susceptibility genes, in an attempt to provide a comprehensive picture of what is known about the genetic mechanisms underlying the onset and progression of AD. Hypotheses about the role of each gene in the pathogenic pathway are discussed, taking into account the functions and molecular features, if known, of the coded protein. A major susceptibility gene, the apolipoprotein E (APOE) gene, found to be associated with sporadic late-onset AD cases and the only one, whose role in AD has been confirmed in numerous studies, will be included in a specific chapter. As the results reported by association studies are conflicting, we conclude that a better understanding of the complex aetiology that underlies AD may be achieved likely through a multidisciplinary approach that combines clinical and neurophysiological characterization of AD subtypes and in vivo functional brain imaging studies with molecular investigations of genetic components.
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Affiliation(s)
- A Rocchi
- Department of Neurosciences, Neurological Clinics, University of Pisa Medical School, Via Roma 67, 56126 Pisa, Italy
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Laws SM, Hone E, Gandy S, Martins RN. Expanding the association between the APOE gene and the risk of Alzheimer's disease: possible roles for APOE promoter polymorphisms and alterations in APOE transcription. J Neurochem 2003; 84:1215-36. [PMID: 12614323 DOI: 10.1046/j.1471-4159.2003.01615.x] [Citation(s) in RCA: 146] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Alzheimer's disease (AD) is the most commonly diagnosed form of dementia in the elderly. Predominantly this disease is sporadic in nature with only a small percentage of patients exhibiting a familial trait. Early-onset AD may be explained by single gene defects; however, most AD cases are late onset (> 65 years) and, although there is no known definite cause for this form of the disease, there are several known risk factors. Of these, the epsilon4 allele of the apolipoprotein E (apoE) gene (APOE) is a major risk factor. The epsilon4 allele of APOE is one of three (epsilon2 epsilon3 and epsilon4) common alleles generated by cysteine/arginine substitutions at two polymorphic sites. The possession of the epsilon 4 allele is recognized as the most common identifiable genetic risk factor for late-onset AD across most populations. Unlike the pathogenic mutations in the amyloid precursor or those in the presenilins, APOE epsilon4 alleles increase the risk for AD but do not guarantee disease, even when present in homozygosity. In addition to the cysteine/arginine polymorphisms at the epsilon2/epsilon3/epsilon4 locus, polymorphisms within the proximal promoter of the APOE gene may lead to increased apoE levels by altering transcription of the APOE gene. Here we review the genetic and biochemical evidence supporting the hypothesis that regulation of apoE protein levels may contribute to the risk of AD, distinct from the well known polymorphisms at the epsilon2/epsilon3/epsilon4 locus.
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Affiliation(s)
- Simon M Laws
- Sir James McCusker Alzheimer's Disease Research Unit, School of Psychiatry and Neuroscience, University of Western Australia, Hollywood Private Hospital, Perth, Western Australia, Australia
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Current awareness in geriatric psychiatry. Bibliography. Int J Geriatr Psychiatry 2001. [PMID: 11571778 DOI: 10.1002/gps.377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
In order to keep subscribers up-to-date with the latest developments in their field, John Wiley &: Sons are providing a current awareness service in each issue of the journal. The bibliography contains newly published material in the field of geriatric psychiatry. Each bibliography is divided into 9 sections: 1 Books, Reviews &: Symposia; 2 General; 3 Assessment; 4 Epidemiology; 5 Therapy; 6 Care; 7 Dementia; 8 Depression; 9 Psychology. Within each section, articles are listed in alphabetical order with respect to author. If, in the preceding period, no publications are located relevant to any one of these headings, that section will be omitted
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