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Journal of Affective Disorders Jul 2023In this systematic review and meta-analysis, we aimed to provide a comprehensive overview of gray matter alterations of adult- and underage patients with posttraumatic... (Meta-Analysis)
Meta-Analysis Review
BACKGROUND
In this systematic review and meta-analysis, we aimed to provide a comprehensive overview of gray matter alterations of adult- and underage patients with posttraumatic stress disorder (PTSD) in comparison to healthy trauma-exposed (TC) and non-exposed (HC) individuals.
METHODS
We subdivided our groups into patients with PTSD after trauma exposure in adulthood (aa) or childhood (ac) as well as children with PTSD (cc). We identified 113 studies, including 6.800 participants in our review, which we divided into studies focusing on whole-brain and region-of-interest (ROI) analysis. We performed a coordinate-based meta-analysis on 14 studies in the group of aa-PTSD.
RESULTS
We and found lower gray matter volume in patients with PTSD (aa) in the medial frontal gyrus (PTSD
cortex (PTSD cortex, hippocampus, anterior cingulate cortex, insula, corpus callosum, and amygdala. LIMITATIONS
Due to a limited number of studies reporting whole-brain results, the meta-analyses could only be performed in one subgroup and within this subgroup for a limited number of studies.
CONCLUSIONS
Our results are in line with psychobiological models of PTSD that associate the identified regions with brain circuits involved in context processing, threat detection and emotion regulation.
Topics: Humans; Adult; Child; Gray Matter; Stress Disorders, Post-Traumatic; Magnetic Resonance Imaging; Cerebral Cortex; Brain
PubMed: 37086802
DOI: 10.1016/j.jad.2023.04.028 -
The Journal of Dermatological Treatment May 2021Topical steroids have been previously associated with potential for hyperglycemia and glucosuria, and thought to have a relatively safe side effect profile. In prolonged... (Meta-Analysis)
Meta-Analysis
BACKGROUND
Topical steroids have been previously associated with potential for hyperglycemia and glucosuria, and thought to have a relatively safe side effect profile. In prolonged use, there is the potential for steroids to be absorbed through the skin and eventually reach systemic circulation. We aimed to investigate the potential association between topical corticosteroid use and development of diabetes, we performed a systematic review and meta-analysis of available case-control data in the literature.
METHODS
Electronic database searches was performed to identify studies comparing the proportion of patients with diabetes in cases using topical corticosteroids compared to those without. The odds ratio (OR) was used as a summary statistic.
RESULTS
Four case-control studies were pooled for meta-analysis. Overall, we found a significant association between topical corticosteroid use and development of type 2 diabetes mellitus, even after adjustment for confounding factors (OR 1.24, 95% CI 1.15-1.34, I2 = 91%, < .00001). There was no potency-dependent effect noted, with no significant difference noted between the subgroups.
CONCLUSIONS
We demonstrate a potential association between topical corticosteroid use and risk of developing diabetes mellitus. This risk does not appear to be dependent on potency of the topical medication, but rather the cumulative dose and cumulative duration of use.
Topics: Administration, Topical; Adrenal Cortex Hormones; Databases, Factual; Diabetes Mellitus, Type 2; Humans; Odds Ratio; Steroids
PubMed: 31418613
DOI: 10.1080/09546634.2019.1657224 -
Developmental Cognitive Neuroscience Dec 2023Resting-state functional connectivity (rsFC) has the potential to shed light on how childhood abuse and neglect relates to negative psychiatric outcomes. However, a... (Review)
Review
Resting-state functional connectivity (rsFC) has the potential to shed light on how childhood abuse and neglect relates to negative psychiatric outcomes. However, a comprehensive review of the impact of childhood maltreatment on the brain's resting state functional organization has not yet been undertaken. We systematically searched rsFC studies in children and youth exposed to maltreatment. Nineteen studies (total n = 3079) met our inclusion criteria. Two consistent findings were observed. Childhood maltreatment was linked to reduced connectivity between the anterior insula and dorsal anterior cingulate cortex, and with widespread heightened amygdala connectivity with key structures in the salience, default mode, and prefrontal regulatory networks. Other brain regions showing altered connectivity included the ventral anterior cingulate cortex, dorsolateral prefrontal cortex, and hippocampus. These patterns of altered functional connectivity associated with maltreatment exposure were independent of symptoms, yet comparable to those seen in individuals with overt clinical disorder. Summative findings indicate that rsFC alterations associated with maltreatment experience are related to poor cognitive and social functioning and are prognostic of future symptoms. In conclusion, maltreatment is associated with altered rsFC in emotional reactivity, regulation, learning, and salience detection brain circuits. This indicates patterns of recalibration of putative mechanisms implicated in maladaptive developmental outcomes.
Topics: Adolescent; Humans; Child; Brain; Amygdala; Brain Mapping; Gyrus Cinguli; Child Abuse; Magnetic Resonance Imaging
PubMed: 37952287
DOI: 10.1016/j.dcn.2023.101322 -
American Journal of Otolaryngology 2021During pregnancy a woman's body undergoes many physiological changes that involve all systems and organs, including sensory ones. We conducted this systematic review to...
PURPOSE
During pregnancy a woman's body undergoes many physiological changes that involve all systems and organs, including sensory ones. We conducted this systematic review to highlight current evidence and treatment options in pregnant women with audio-vestibular disorders.
MATERIALS AND METHODS
A search was made on the following databases: PubMed, PubMed Central, Web of Science and Scopus. This research protocol was deposited in the PROSPERO Database.
RESULTS
After application of inclusion-exclusion criteria, 30 manuscripts were included in the review. Many authors (14/15) found a slight alteration of audiometric tests during pregnancy, with a reported recovery postpartum in most of the studies (5/7). Regarding sudden sensorineural hearing loss (SSNHL), we found four articles for a total of 69 patients: the treatment of choice was intravenous Dextran 40 and intra-tympanic corticosteroids. Most included studies (4/6) found neither clinical nor epidemiological associations between otosclerosis and pregnancy in large-based sample studies. Few investigations regarded Eustachian tube function and vertigo.
CONCLUSIONS
According to our results, many variations of hearing acuity during pregnancy are slight and transient and require only clinical observation. In large samples, otosclerosis appeared not to be associated with pregnancy. Clinicians should consider intra-tympanic steroids in managing SSNHL during pregnancy. Further more accurate research is needed to deepen and clarify the association between pregnancy and audio-vestibular disorders.
Topics: Adrenal Cortex Hormones; Dextrans; Female; Hearing Loss, Sensorineural; Hearing Loss, Sudden; Humans; Infusions, Intravenous; Instillation, Drug; Otosclerosis; Pregnancy; Pregnancy Complications; Vertigo
PubMed: 34182351
DOI: 10.1016/j.amjoto.2021.103136 -
Journal of Neurotrauma Jun 2022Depression is the most frequent neuropsychiatric complication after traumatic brain injury (TBI) and is associated with poorer outcomes. Neuroimaging has the potential... (Review)
Review
Depression is the most frequent neuropsychiatric complication after traumatic brain injury (TBI) and is associated with poorer outcomes. Neuroimaging has the potential to improve our understanding of the neural correlates of depression after TBI and may improve our capacity to accurately predict and effectively treat this condition. We conducted a systematic review of structural and functional neuroimaging studies that examined the association between depression after TBI and neuroimaging measures. Electronic searches were conducted in four databases and were complemented by manual searches. In total, 2035 citations were identified and, ultimately, 38 articles were included, totaling 1793 individuals (median [25-75%] sample size of 38.5 [21.8-54.3] individuals). The most frequently used modality was structural magnetic resonance imaging (MRI) ( = 17, 45%), followed by diffusion tensor imaging ( = 11, 29%), resting-state functional MRI ( = 10, 26%), task-based functional MRI ( = 4, 8%), and positron emission tomography ( = 2, 4%). Most studies ( = 27, 71%) were cross-sectional. Overall, depression after TBI was associated with lower gray matter measures (volume, thickness, and/or density) and greater white matter damage. However, identification of specific brain areas was somewhat inconsistent. Findings that were replicated in more than one study included reduced gray matter in the rostral anterior cingulate cortex, pre-frontal cortex, and hippocampus, and damage in five white matter tracts (cingulum, internal capsule, superior longitudinal fasciculi, and anterior and posterior corona radiata). This systematic review found that the available data did not converge on a clear neuroimaging biomarker for depression after TBI. However, there are promising targets that warrant further study.
Topics: Brain; Brain Injuries, Traumatic; Depression; Diffusion Tensor Imaging; Humans; Neuroimaging; White Matter
PubMed: 35229629
DOI: 10.1089/neu.2021.0374 -
Cortex; a Journal Devoted To the Study... Sep 2022Severe acute respiratory syndrome coronavirus 2 is a worldwide public health issue. Almost 2 years into the pandemic, the persistence of symptoms after the acute phase... (Review)
Review
Severe acute respiratory syndrome coronavirus 2 is a worldwide public health issue. Almost 2 years into the pandemic, the persistence of symptoms after the acute phase is a well-recognized phenomenon. We conducted a scoping review to map cognitive domain impairments, their frequency, and associated psycho-affective disorders in people with a previous COVID-19 infection. We searched PubMed/MEDLINE, Scopus, and PsycInfo to identify relevant reports published between December 1, 2019 and February 21, 2022. We followed the PRISMA (Preferred-Reporting-Items-for-Systematic-Reviews-and-Meta-Analyses) extension for scoping review guidelines. Three independent reviewers selected and charted 25 records out of 922. Memory, attention, and executive functions appeared to be the most affected domains. Delayed recall and learning were the most impaired domains of memory. Among the executive functions, abstraction, inhibition, set shifting, and sustained and selective attention were most commonly impaired. Language and visuo-spatial abilities were rarely affected, although this finding might be biased by the scarcity of reports. Neurological and respiratory conditions were often reported in association with cognitive deficits. Results on psycho-affective conditions were inconclusive due to the low frequency of reported data. Admission to an intensive care unit is not related to cognitive deficits. This review highlighted a potential effect of a previous post-COVID-19 infection on a pattern of memory, attention, and executive functions impairments. These findings need to be confirmed on larger cohorts with comprehensive neuropsychological batteries and correlated to neurophysiological and neurobiological substrates.
Topics: COVID-19; Cognitive Dysfunction; Humans; Pandemics; SARS-CoV-2
PubMed: 35780756
DOI: 10.1016/j.cortex.2022.06.002 -
Revista Brasileira de Psiquiatria (Sao... 2017To conduct a systematic literature review of human studies reporting neural correlates of positive emotions. (Review)
Review
OBJECTIVE:
To conduct a systematic literature review of human studies reporting neural correlates of positive emotions.
METHODS:
The PubMed and Web of Science databases were searched in January 2016 for scientific papers written in English. No restrictions were placed on year of publication.
RESULTS:
Twenty-two articles were identified and 12 met the established criteria. Five had been published during the last 4 years. Formation and regulation of positive emotions, including happiness, are associated with significant reductions in activity in the right prefrontal cortex and bilaterally in the temporoparietal cortex, as well as with increased activity in the left prefrontal regions. They are also associated with increased activity in the cingulate gyrus, inferior and middle temporal gyri, amygdalae, and ventral striatum.
CONCLUSION:
It is too early to claim that there is an established understanding of the neuroscience of positive emotions and happiness. However, despite overlap in the brain regions involved in the formation and regulation of positive and negative emotions, we can conclude that positive emotions such as happiness activate specific brain regions.
Topics: Brain; Electroencephalography; Happiness; Humans; Neuroimaging; Neurosciences
PubMed: 27901215
DOI: 10.1590/1516-4446-2016-1988 -
Nursing Research 2016Insight in schizophrenia is defined as awareness into illness, symptoms, and need for treatment and has long been associated with cognition, other psychopathological... (Review)
Review
BACKGROUND
Insight in schizophrenia is defined as awareness into illness, symptoms, and need for treatment and has long been associated with cognition, other psychopathological symptoms, and several adverse clinical and functional outcomes. However, the biological basis of insight is not clearly understood.
OBJECTIVE
The aim of this systematic review was to critically evaluate and summarize advances in the study of the biological basis of insight in schizophrenia and to identify gaps in this knowledge.
METHODS
A literature search of PubMed, CINAHL, PsycINFO, and EMBASE databases was conducted using search terms to identify articles relevant to the biology of insight in schizophrenia published in the last 6 years. Articles that focused on etiology of insight in schizophrenia and those that examined the neurobiology of insight in schizophrenia or psychoses were chosen for analysis. Articles on insight in conditions other than schizophrenia or psychoses and which did not investigate the neurobiological underpinnings of insight were excluded from the review.
RESULTS
Twenty-six articles met the inclusion criteria for this review. Of the 26 articles, 3 focused on cellular abnormalities and 23 were neuroimaging studies. Preliminary data identify the prefrontal cortex, cingulate cortex, and regions of the temporal and parietal lobe (precuneus, inferior parietal lobule) and hippocampus as the neural correlates of insight.
DISCUSSION
A growing body of literature attests to the neurobiological basis of insight in schizophrenia. Current evidence supports the neurobiological basis of insight in schizophrenia and identifies specific neural correlates for insight types and its dimensions. Further studies that examine the precise biological mechanisms of insight are needed to apply this knowledge to effective clinical intervention development.
Topics: Brain; Humans; Neuropsychological Tests; Outcome Assessment, Health Care; Schizophrenia; Schizophrenic Psychology
PubMed: 27124258
DOI: 10.1097/NNR.0000000000000159 -
Neuroscience and Biobehavioral Reviews Jan 2022Although negative early life experiences are associated with an increased risk of developing psychopathology, some individuals exposed to childhood adversity demonstrate... (Review)
Review
Although negative early life experiences are associated with an increased risk of developing psychopathology, some individuals exposed to childhood adversity demonstrate psychological resilience. Little is known about the neural correlates of resilience, especially in young people. To address this gap, we conducted a systematic review of neuroimaging studies of resilience in youth. The PubMed, Web of Science, Scopus, and PsycINFO databases were searched; 5,482 studies were identified. Following title/abstract screening, and full reading of the remaining articles, 22 studies based on 19 unique datasets were included. We found preliminary evidence that resilience is associated with structural, functional, and connectivity differences in young people, as assessed using structural and functional MRI and diffusion tensor imaging methods. Despite heterogeneity in definitions/assessment of resilience and a limited number of studies, the neuroimaging literature suggests some convergence across modalities regarding brain regions linked to resilience (especially the prefrontal cortex). Future studies would benefit from adopting longitudinal designs, broader conceptualisations of resilience that capture the impact of adversity exposure, and a dimensional approach to psychopathology.
Topics: Adolescent; Brain; Diffusion Tensor Imaging; Humans; Magnetic Resonance Imaging; Neuroimaging; Resilience, Psychological
PubMed: 34740756
DOI: 10.1016/j.neubiorev.2021.11.001 -
Journal of Clinical Medicine Aug 2022Failed internal fixations for trochanteric fractures have a strong negative impact owing to increased postoperative mortality and high medical costs. However, evidence... (Review)
Review
Failed internal fixations for trochanteric fractures have a strong negative impact owing to increased postoperative mortality and high medical costs. However, evidence on the prognostic value of postoperative radiographic findings for failed internal fixations is limited. We aimed to clarify the association between comprehensive immediate postoperative radiographic findings and failed internal fixation using relative and absolute risk measures. We followed the meta-analysis of observational studies in epidemiology guidelines and the Cochrane handbook. We searched specific databases in November 2021. The outcomes of interest were failed internal fixation and cut-out. We pooled the odds ratios and 95% confidence intervals using a random-effects model and calculated the number needed to harm for each outcome. Thirty-six studies involving 8938 patients were included. The certainty of evidence in the association between postoperative radiographic findings and failed internal fixation or cut-out was mainly low or very low except for the association between intramedullary malreduction on the anteromedial cortex and failed internal fixation. Moderate certainty of evidence supported that intramedullary malreduction on the anteromedial cortex was associated with failed internal fixation. Most postoperative radiographic findings on immediate postoperative radiographs for trochanteric fractures were uncertain as prognostic factors for failed internal fixations.
PubMed: 36013114
DOI: 10.3390/jcm11164879