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1.
Soc Psychiatry Psychiatr Epidemiol ; 58(1): 1-16, 2023 Jan.
Article in English | MEDLINE | ID: mdl-35927343

ABSTRACT

PURPOSE: The continuum of mental health/illness has been subject to scientific debate for decades. While current research indicates that continuum belief interventions can reduce mental health stigma and improve treatment seeking in affected populations, no study has yet systematically examined measures of continuum beliefs. METHODS: This preregistered systematic review summarizes measures of continuum beliefs. Following the PRISMA statement, three scientific databases (PubMed, PsycInfo and PsycArticles via EBSCOhost, Web of Science) are searched, instruments are described and discussed regarding their scope, and methodological quality. RESULTS: Overall, 7351 records were identified, with 35 studies reporting relevant findings on 11 measures. Most studies examined general population samples and used vignette-based measures. Schizophrenia and depression were most commonly examined, few studies focused on dementia, ADHD, OCD, eating disorders, and problematic alcohol use, or compared continuum beliefs across disorders. Validity was very good for most measures, but reliability was rarely tested. Measures mostly assessed beliefs in the normality of mental health symptoms or the normality of persons with such symptoms but rarely nosological aspects (i.e., categorical v continuous conceptualization of mental disorders). CONCLUSIONS: Current research provides psychometrically sound instruments to examine continuum beliefs for a variety of mental disorders. While studies suggest utility for general population samples and mental health professionals, more research is necessary to corroborate findings, for instance, regarding age (e.g., in adolescents), gender, or type of mental disorder. Future research should also compare self-report ratings, and vignette-based measures, include measures of nosological concepts to fully grasp the continuum concept of mental illness. PREREGISTRATION: PROSPERO: CRD42019123606.


Subject(s)
Mental Disorders , Schizophrenia , Adolescent , Humans , Reproducibility of Results , Mental Disorders/therapy , Mental Disorders/psychology , Mental Health , Social Stigma
2.
Clin Exp Allergy ; 45(9): 1447-58, 2015 Sep.
Article in English | MEDLINE | ID: mdl-25772331

ABSTRACT

BACKGROUND: Increased mucus production is a critical factor impairing lung function in patients suffering from bronchial asthma, the most common chronic inflammatory lung disease worldwide. OBJECTIVE: This study aimed at investigating whether goblet cell (GC) metaplasia and mucus production are differentially regulated in proximal and distal airways. METHODS: Female Balb/c mice were sensitized to ovalbumin (OVA) and challenged with an OVA-aerosol on two consecutive days for 1 week (acute) or 12 weeks (chronic). Real-time RT-PCR analysis was applied on microdissected airways. RESULTS: In acutely and chronically OVA-challenged mice, GC metaplasia and mucus production were observed in proximal but not in distal airways. In contrast, inflammation reflected by the infiltration of eosinophils and expression of the TH2-type cytokines IL-4 and IL-13 was increased in both proximal and distal airways. Abundance of IL-13Rα1 was lower in distal airways of healthy control mice. Under acute and chronic OVA-exposure, activation of IL-13Rα1-dependent signalling cascade, reflected by Spdef and Foxo3A transcription factors, was attenuated in distal compared to proximal airways. CONCLUSION AND CLINICAL RELEVANCE: These data indicate that distal airways might be less sensitive to IL-13-induced GC metaplasia and mucus production through lower expression of IL-13Rα1 and attenuated activation of downstream signalling. This might represent a protective strategy to prevent mucus plugging of distal airways and thus impaired ventilation of attached alveoli.


Subject(s)
Asthma/immunology , Gene Expression Regulation/immunology , Goblet Cells/immunology , Interleukin-13/immunology , Lung/immunology , Signal Transduction/immunology , Animals , Asthma/metabolism , Asthma/pathology , Female , Forkhead Box Protein O3 , Forkhead Transcription Factors/biosynthesis , Forkhead Transcription Factors/immunology , Goblet Cells/metabolism , Goblet Cells/pathology , Interleukin-13/biosynthesis , Interleukin-13 Receptor alpha1 Subunit/biosynthesis , Interleukin-13 Receptor alpha1 Subunit/immunology , Interleukin-4/biosynthesis , Interleukin-4/immunology , Lung/metabolism , Lung/pathology , Metaplasia , Mice , Mice, Inbred BALB C , Mucus/immunology , Mucus/metabolism , Proto-Oncogene Proteins c-ets/biosynthesis , Proto-Oncogene Proteins c-ets/immunology , Th2 Cells/immunology , Th2 Cells/metabolism , Th2 Cells/pathology
3.
Science ; 261(5120): 411-2, 1993 Jul 23.
Article in English | MEDLINE | ID: mdl-17770007
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