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- Klionsky, Daniel J., et al.
(författare)
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Guidelines for the use and interpretation of assays for monitoring autophagy
- 2012
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Ingår i: Autophagy. - : Informa UK Limited. - 1554-8635 .- 1554-8627. ; 8:4, s. 445-544
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Forskningsöversikt (refereegranskat)abstract
- In 2008 we published the first set of guidelines for standardizing research in autophagy. Since then, research on this topic has continued to accelerate, and many new scientists have entered the field. Our knowledge base and relevant new technologies have also been expanding. Accordingly, it is important to update these guidelines for monitoring autophagy in different organisms. Various reviews have described the range of assays that have been used for this purpose. Nevertheless, there continues to be confusion regarding acceptable methods to measure autophagy, especially in multicellular eukaryotes. A key point that needs to be emphasized is that there is a difference between measurements that monitor the numbers or volume of autophagic elements (e.g., autophagosomes or autolysosomes) at any stage of the autophagic process vs. those that measure flux through the autophagy pathway (i.e., the complete process); thus, a block in macroautophagy that results in autophagosome accumulation needs to be differentiated from stimuli that result in increased autophagic activity, defined as increased autophagy induction coupled with increased delivery to, and degradation within, lysosomes (in most higher eukaryotes and some protists such as Dictyostelium) or the vacuole (in plants and fungi). In other words, it is especially important that investigators new to the field understand that the appearance of more autophagosomes does not necessarily equate with more autophagy. In fact, in many cases, autophagosomes accumulate because of a block in trafficking to lysosomes without a concomitant change in autophagosome biogenesis, whereas an increase in autolysosomes may reflect a reduction in degradative activity. Here, we present a set of guidelines for the selection and interpretation of methods for use by investigators who aim to examine macroautophagy and related processes, as well as for reviewers who need to provide realistic and reasonable critiques of papers that are focused on these processes. These guidelines are not meant to be a formulaic set of rules, because the appropriate assays depend in part on the question being asked and the system being used. In addition, we emphasize that no individual assay is guaranteed to be the most appropriate one in every situation, and we strongly recommend the use of multiple assays to monitor autophagy. In these guidelines, we consider these various methods of assessing autophagy and what information can, or cannot, be obtained from them. Finally, by discussing the merits and limits of particular autophagy assays, we hope to encourage technical innovation in the field.
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| 2. |
- Jung, Young-Eun, et al.
(författare)
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The Korean version of the Connor-Davidson Resilience Scale: An extended validation
- 2012
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Ingår i: Stress and Health. - : John Wiley & Sons. - 1532-3005 .- 1532-2998. ; 28:4, s. 319-326
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Tidskriftsartikel (refereegranskat)abstract
- The Connor–Davidson Resilience Scale (CD‐RISC) is a brief self‐rating questionnaire for measuring resilience. The aims of the present study were to describe the development of a Korean version of the CD‐RISC (K‐CD‐RISC) and to more firmly establish its psychometric properties in terms of reliability and validity. The participants consisted of a general population sample (n = 194) and psychiatric outpatients (n = 127) with non‐psychotic mood or anxiety disorders. The K‐CD‐RISC score means (standard deviation) were 65.9 (13.6) in the general population and 50.4 (20.5) in the psychiatric outpatients. The mean score of the general population was significantly higher than that of the psychiatric outpatients. Exploratory factor analysis revealed five factors, and the obtained factor structure was verified through confirmatory factor analysis. In the general population, the Cronbach's α coefficient of the K‐CD‐RISC was found to be 0.92. Greater resilience was found to be associated with less perceived stress, anxiety and depression and with higher levels of positive affect and purpose in life. Taken together, our findings suggest that the K‐CD‐RISC has good psychometric properties and is a valid and reliable tool for assessing resilience.
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| 7. |
- Huh, Hyu Jung, et al.
(författare)
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Childhood trauma and adult interpersonal relationship problems in patients with depression and anxiety disorders
- 2014
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Ingår i: Annals of General Psychiatry. - : BioMed Central (BMC). - 1744-859X. ; 13
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Tidskriftsartikel (refereegranskat)abstract
- Introduction: Although a plethora of studies have delineated the relationship between childhood trauma and onset, symptom severity, and course of depression and anxiety disorders, there has been little evidence that childhood trauma may lead to interpersonal problems among adult patients with depression and anxiety disorders. Given the lack of prior research in this area, we aimed to investigate characteristics of interpersonal problems in adult patients who had suffered various types of abuse and neglect in childhood.Methods: A total of 325 outpatients diagnosed with depression and anxiety disorders completed questionnaires on socio-demographic variables, different forms of childhood trauma, and current interpersonal problems. The Childhood Trauma Questionnaire (CTQ) was used to measure five different forms of childhood trauma (emotional abuse, emotional neglect, physical abuse, physical neglect, and sexual abuse) and the short form of the Korean-Inventory of Interpersonal Problems Circumplex Scale (KIIP-SC) was used to assess current interpersonal problems. We dichotomized patients into two groups (abused and non-abused groups) based on CTQ score and investigated the relationship of five different types of childhood trauma and interpersonal problems in adult patients with depression and anxiety disorders using multiple regression analysis.Result: Different types of childhood abuse and neglect appeared to have a significant influence on distinct symptom dimensions such as depression, state-trait anxiety, and anxiety sensitivity. In the final regression model, emotional abuse, emotional neglect, and sexual abuse during childhood were significantly associated with general interpersonal distress and several specific areas of interpersonal problems in adulthood. No association was found between childhood physical neglect and current general interpersonal distress.Conclusion: Childhood emotional trauma has more influence on interpersonal problems in adult patients with depression and anxiety disorders than childhood physical trauma. A history of childhood physical abuse is related to dominant interpersonal patterns rather than submissive interpersonal patterns in adulthood. These findings provide preliminary evidence that childhood trauma might substantially contribute to interpersonal problems in adulthood.
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| 9. |
- Min, Jung-Ah, et al.
(författare)
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Cognitive emotion regulation strategies contributing to resilience in patients with depression and/or anxiety disorders
- 2013
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Ingår i: Comprehensive Psychiatry. - : Elsevier. - 0010-440X .- 1532-8384. ; 54:8, s. 1190-1197
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Tidskriftsartikel (refereegranskat)abstract
- Objective: Research suggests that resilience is associated with favorable treatment outcome in patients with depression and/or anxiety disorders. In this regard, the identification of specific characteristics related to resilience that could provide targets for resilience-enhancement interventions is needed. Since the type of cognitive coping strategies is a possible marker of resilience, we investigated adaptive and maladaptive cognitive emotion regulation strategies contributing to resilience in patients with depression and/or anxiety disorders.Methods: A total of 230 outpatients with depression and anxiety disorders were consecutively recruited and completed the Cognitive Emotion Regulation Questionnaire, the Connor–Davidson Resilience Scale, the Beck Depression Inventory, and the State Anxiety Inventory. A linear regression model was used to determine which cognitive emotion regulation strategies predicted resilience after controlling for relevant covariates. Additionally, this model of resilience was compared with those of depression and anxiety symptoms.Results: Adaptive strategies were more strongly correlated with resilience than maladaptive strategies. In the regression model, more use of refocus on planning and positive reappraisal as well as less use of rumination predicted high resilience after controlling for age, gender, marital status, depression, and anxiety. Among these strategies, refocus on planning was the common strategy contributing to resilience and depression.Conclusion: These results suggested that the cognitive emotion regulation strategies of refocus on planning, positive reappraisal, and less rumination contribute to resilience in patients with depression and anxiety disorders. It might provide potential targets for psychotherapeutic intervention to improve resilience in these patients.
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