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Featured researches published by Jesper Krogh.


JAMA Psychiatry | 2014

Effect of anti-inflammatory treatment on depression, depressive symptoms, and adverse effects: a systematic review and meta-analysis of randomized clinical trials.

Ole Köhler; Michael Eriksen Benros; Merete Nordentoft; Michael E. Farkouh; Rupa L. Iyengar; Ole Mors; Jesper Krogh

IMPORTANCE Several studies have reported antidepressant effects of anti-inflammatory treatment; however, the results have been conflicting and detrimental adverse effects may contraindicate the use of anti-inflammatory agents. OBJECTIVE To systematically review the antidepressant and possible adverse effects of anti-inflammatory interventions. DATA SOURCES Trials published prior to December, 31, 2013, were identified searching Cochrane Central Register of Controlled Trials, PubMed, EMBASE, PsychINFO, Clinicaltrials.gov, and relevant review articles. STUDY SELECTION Randomized placebo-controlled trials assessing the efficacy and adverse effects of pharmacologic anti-inflammatory treatment in adults with depressive symptoms, including those who fulfilled the criteria for depression. DATA EXTRACTION AND SYNTHESIS Data were extracted by 2 independent reviewers. Pooled standard mean difference (SMD) and odds ratios (ORs) were calculated. MAIN OUTCOMES AND MEASURES Depression scores after treatment and adverse effects. RESULTS Ten publications reporting on 14 trials (6262 participants) were included: 10 trials evaluated the use of nonsteroidal anti-inflammatory drugs (NSAIDs) (n=4,258) and 4 investigated cytokine inhibitors (n=2,004). The pooled effect estimate suggested that anti-inflammatory treatment reduced depressive symptoms (SMD, -0.34; 95% CI, -0.57 to -0.11; I2=90%) compared with placebo. This effect was observed in studies including patients with depression (SMD, -0.54; 95% CI, -1.08 to -0.01; I2=68%) and depressive symptoms (SMD, -0.27; 95% CI, -0.53 to -0.01; I2=68%). The heterogeneity of the studies was not explained by differences in inclusion of clinical depression vs depressive symptoms or use of NSAIDs vs cytokine inhibitors. Subanalyses emphasized the antidepressant properties of the selective cyclooxygenase 2 inhibitor celecoxib (SMD, -0.29; 95% CI, -0.49 to -0.08; I2=73%) on remission (OR, 7.89; 95% CI, 2.94 to 21.17; I2=0%) and response (OR, 6.59; 95% CI, 2.24 to 19.42; I2=0%). Among the 6 studies reporting on adverse effects, we found no evidence of an increased number of gastrointestinal or cardiovascular events after 6 weeks or infections after 12 weeks of anti-inflammatory treatment compared with placebo. All trials were associated with a high risk of bias owing to potentially compromised internal validity. CONCLUSIONS AND RELEVANCE Our analysis suggests that anti-inflammatory treatment, in particular celecoxib, decreases depressive symptoms without increased risks of adverse effects. However, a high risk of bias and high heterogeneity made the mean estimate uncertain. This study supports a proof-of-concept concerning the use of anti-inflammatory treatment in depression. Identification of subgroups that could benefit from such treatment might be warranted.


The Journal of Clinical Psychiatry | 2011

The Effect of Exercise in Clinically Depressed Adults: Systematic Review and Meta-Analysis of Randomized Controlled Trials

Jesper Krogh; Merete Nordentoft; Jonathan A C Sterne; Debbie A. Lawlor

OBJECTIVE To assess the effectiveness of exercise in adults with clinical depression. DATA SOURCES The databases CINAHL, Embase, Cochrane Database of Systematic reviews, Cochrane Controlled Trials Register, MEDLINE, and PsycINFO were searched (1806-2008) using medical subject headings (MeSH) and text word terms depression, depressive disorder and exercise, aerobic, non-aerobic, physical activity, physical fitness, walk*, jog*, run*, bicycling, swim*, strength, and resistance. STUDY SELECTION Randomized trials including adults with clinical depression according to any diagnostic system were included. DATA EXTRACTION Two investigators evaluated trials using a prepiloted structured form. DATA SYNTHESIS Thirteen trials were identified that fulfilled the inclusion criteria. Eight had adequate allocation concealment, 6 had a blinded outcome, and 5 used intention-to-treat analyses. The pooled standardized mean difference (SMD) calculated using a random-effects model was -0.40 (95% CI, -0.66 to -0.14), with evidence of heterogeneity between trials (I(2) = 57.2%, P = .005). There was an inverse association between duration of intervention and the magnitude of the association of exercise with depression (P = .002). No other characteristics were related to between-study heterogeneity. Pooled analysis of 5 trials with long-term follow-up (ie, that examined outcomes beyond the end of the intervention) suggested no long-term benefit (SMD, -0.01; 95% CI, -0.28 to 0.26), with no strong evidence of heterogeneity in this pooled analysis (I(2) = 23.4%, P = .27). There was no strong statistical evidence for small study bias (P > .27). Only 3 studies were assessed as high quality (adequately concealed random allocation, blinded outcome assessment, and intention-to-treat analysis). When we pooled results from these, the estimated beneficial effect of exercise was more modest (SMD, -0.19; 95% CI, -0.70 to 0.31) than the pooled result for all 13 studies, with no strong evidence of benefit. CONCLUSIONS Our results suggest a short-term effect of exercise on depression: on average, depression scores 0.4 of a standard deviation lower in clinically depressed patients randomly assigned to an exercise intervention at the end of that intervention compared to those randomly assigned to a none exercise group. There is little evidence of a long-term beneficial effect of exercise in patients with clinical depression.


PLOS ONE | 2012

DEMO-II Trial. Aerobic Exercise versus Stretching Exercise in Patients with Major Depression—A Randomised Clinical Trial

Jesper Krogh; Poul Videbech; Carsten Thomsen; Christian Gluud; Merete Nordentoft

Background The effect of referring patients from a clinical setting to a pragmatic exercise intervention for depressive symptoms, cognitive function, and metabolic variables has yet to be determined. Methods Outpatients with major depression (DSM-IV) were allocated to supervised aerobic or stretching exercise groups during a three months period. The primary outcome was the Hamilton depression score (HAM-D17). Secondary outcomes were cognitive function, cardiovascular risk markers, and employment related outcomes. Results 56 participants were allocated to the aerobic exercise intervention versus 59 participants to the stretching exercise group. Post intervention the mean difference between groups was −0.78 points on the HAM-D17 (95% CI −3.2 to 1.6; P = .52). At follow-up, the participants in the aerobic exercise group had higher maximal oxygen uptake (mean difference 4.4 l/kg/min; 95% CI 1.7 to 7.0; P = .001) and visuospatial memory on Rey’s Complex Figure Test (mean difference 3.2 points; 95% CI 0.9 to 5.5; P = .007) and lower blood glucose levels (mean difference 0.2 mmol/l; 95% CI 0.0 to 0.5; P = .04) and waist circumference (mean difference 2.2 cm; 95% CI 0.3 to 4.1; P = .02) compared with the stretching exercise group. Conclusions The results of this trial does not support any antidepressant effect of referring patients with major depression to a three months aerobic exercise program. Due to lower recruitment than anticipated, the trial was terminated prior to reaching the pre-defined sample size of 212 participants; therefore the results should be interpreted in that context. However, the DEMO-II trial does suggest that an exercise program for patients with depression offer positive short-term effects on maximal oxygen uptake, visuospatial memory, fasting glucose levels, and waist circumference. Trial Registration ClinicalTrials.gov NCT00695552


Cognitive Behaviour Therapy | 2014

Efficacy of Transdiagnostic Cognitive Behaviour Therapy for Anxiety Disorders: A Systematic Review and Meta-Analysis of Published Outcome Studies

Nina Reinholt; Jesper Krogh

Transdiagnostic approaches to cognitive behaviour therapy (TCBT) of anxiety disorders have drawn increasing interest and empirical testing over the past decade. In this paper, we review evidence of the overall efficacy of TCBT for anxiety disorders, as well as TCBT efficacy compared with wait-list, treatment-as-usual, and diagnosis-specific cognitive behaviour therapy (CBT) controls. A total of 11 studies reporting 12 trials (n = 1933) were included in the systematic review. Results from the meta-analysis of 11 trials suggest that TCBT was generally associated with positive outcome; TCBT patients did better than wait-list and treatment-as-usual patients, and treatment gains were maintained through follow-up. The pooled estimate showed a moderate treatment effect, however with large heterogeneity suggesting differences in treatment effects between the studies. Also, all the included trials, apart from one, were judged to be associated with a high risk of bias. Only one study compared TCBT with diagnosis-specific CBT suggesting treatment effect of TCBT to be as strong as diagnosis-specific CBT. This study not only cautiously supports evidence for the efficacy of TCBT, but also suggests the need for more high-quality, large-scaled studies in this area. Transdiagnostic treatments offer great clinical promise as an affordable and pragmatic treatment for anxiety disorders and as a specialized treatment for co-morbid and other-specified anxiety disorders.


Brain Behavior and Immunity | 2014

The association between depressive symptoms, cognitive function, and inflammation in major depression.

Jesper Krogh; Michael Eriksen Benros; Martin Balslev Jørgensen; Lone Vesterager; Merete Nordentoft

The purpose of this study was to assess the association between IL-6 and CRP with depressive items and cognitive function. We included 112 outpatients with major depression from an exercise trial and 57 healthy controls. IL-6, high sensitive CRP (hsCRP), and cognitive function were assessed in all subjects. After baseline assessment, patients were randomised to either a 3months exercise intervention or an exercise control group. Post-intervention IL-6, hsCRP, depressive symptoms, and cognitive function were reassessed in the patient group. IL-6 and hsCRP were significantly increased in depressed patients compared to healthy controls (p=0.02 and 0.04). These differences were no longer significant after adjustment for lifestyle associated variables. We found no association between immune markers and specific depressive symptoms at baseline or as change over time. Regarding the cognitive tests, IL-6 was positively associated with Serial sevens (p=0.008) and hsCRP was inversely associated with Trail making A (p=0.02) and design fluency (p=0.001) at baseline. At 3months follow-up IL-6 and hsCRP levels did not significantly change from baseline and did not differ between the two patient groups. Depression scores was lower compared to baseline but did not differ between groups. Combining the two groups, a decrease in IL-6 was associated to decreased verbal fluency (p=0.02), and a decrease in hsCRP was associated with improvement in Trail making A (p=0.005). In conclusion, the level of IL-6 and hsCRP was increased in depressed outpatients but was not associated to specific depressive symptoms. In terms of cognitive function, we found that higher hsCRP levels were associated to lower psychomotor speed both at baseline and at follow-up.


BMC Psychiatry | 2017

Selective serotonin reuptake inhibitors versus placebo in patients with major depressive disorder. A systematic review with meta-analysis and Trial Sequential Analysis.

Janus Christian Jakobsen; Kiran Kumar Katakam; Anne Schou; Signe G. Hellmuth; Sandra Stallknecht; Katja Leth-Møller; Maria Iversen; Marianne Bjørnø Banke; Iggiannguaq Petersen; Sarah Louise Klingenberg; Jesper Krogh; Sebastian Elgaard Ebert; Anne Timm; Jane Lindschou; Christian Gluud

BackgroundThe evidence on selective serotonin reuptake inhibitors (SSRIs) for major depressive disorder is unclear.MethodsOur objective was to conduct a systematic review assessing the effects of SSRIs versus placebo, ‘active’ placebo, or no intervention in adult participants with major depressive disorder. We searched for eligible randomised clinical trials in The Cochrane Library’s CENTRAL, PubMed, EMBASE, PsycLIT, PsycINFO, Science Citation Index Expanded, clinical trial registers of Europe and USA, websites of pharmaceutical companies, the U.S. Food and Drug Administration (FDA), and the European Medicines Agency until January 2016. All data were extracted by at least two independent investigators. We used Cochrane systematic review methodology, Trial Sequential Analysis, and calculation of Bayes factor. An eight-step procedure was followed to assess if thresholds for statistical and clinical significance were crossed. Primary outcomes were reduction of depressive symptoms, remission, and adverse events. Secondary outcomes were suicides, suicide attempts, suicide ideation, and quality of life.ResultsA total of 131 randomised placebo-controlled trials enrolling a total of 27,422 participants were included. None of the trials used ‘active’ placebo or no intervention as control intervention. All trials had high risk of bias. SSRIs significantly reduced the Hamilton Depression Rating Scale (HDRS) at end of treatment (mean difference −1.94 HDRS points; 95% CI −2.50 to −1.37; P < 0.00001; 49 trials; Trial Sequential Analysis-adjusted CI −2.70 to −1.18); Bayes factor below predefined threshold (2.01*10−23). The effect estimate, however, was below our predefined threshold for clinical significance of 3 HDRS points. SSRIs significantly decreased the risk of no remission (RR 0.88; 95% CI 0.84 to 0.91; P < 0.00001; 34 trials; Trial Sequential Analysis adjusted CI 0.83 to 0.92); Bayes factor (1426.81) did not confirm the effect). SSRIs significantly increased the risks of serious adverse events (OR 1.37; 95% CI 1.08 to 1.75; P = 0.009; 44 trials; Trial Sequential Analysis-adjusted CI 1.03 to 1.89). This corresponds to 31/1000 SSRI participants will experience a serious adverse event compared with 22/1000 control participants. SSRIs also significantly increased the number of non-serious adverse events. There were almost no data on suicidal behaviour, quality of life, and long-term effects.ConclusionsSSRIs might have statistically significant effects on depressive symptoms, but all trials were at high risk of bias and the clinical significance seems questionable. SSRIs significantly increase the risk of both serious and non-serious adverse events. The potential small beneficial effects seem to be outweighed by harmful effects.Systematic review registrationPROSPERO CRD42013004420.


Biological Psychiatry | 2017

Genome-wide Association for Major Depression Through Age at Onset Stratification: Major Depressive Disorder Working Group of the Psychiatric Genomics Consortium

Robert A. Power; Katherine E. Tansey; Henriette N. Buttenschøn; Sarah Cohen-Woods; Tim B. Bigdeli; Lynsey S. Hall; Zoltán Kutalik; S. Hong Lee; Stephan Ripke; Stacy Steinberg; Alexander Teumer; Alexander Viktorin; Naomi R. Wray; Volker Arolt; Bernard T. Baune; Dorret I. Boomsma; Anders D. Børglum; Enda M. Byrne; Enrique Castelao; Nicholas John Craddock; Ian Craig; Udo Dannlowski; Ian J. Deary; Franziska Degenhardt; Andreas J. Forstner; Scott D. Gordon; Hans J. Grabe; Jakob Grove; Steven P. Hamilton; Caroline Hayward

Background Major depressive disorder (MDD) is a disabling mood disorder, and despite a known heritable component, a large meta-analysis of genome-wide association studies revealed no replicable genetic risk variants. Given prior evidence of heterogeneity by age at onset in MDD, we tested whether genome-wide significant risk variants for MDD could be identified in cases subdivided by age at onset. Methods Discovery case-control genome-wide association studies were performed where cases were stratified using increasing/decreasing age-at-onset cutoffs; significant single nucleotide polymorphisms were tested in nine independent replication samples, giving a total sample of 22,158 cases and 133,749 control subjects for subsetting. Polygenic score analysis was used to examine whether differences in shared genetic risk exists between earlier and adult-onset MDD with commonly comorbid disorders of schizophrenia, bipolar disorder, Alzheimer’s disease, and coronary artery disease. Results We identified one replicated genome-wide significant locus associated with adult-onset (>27 years) MDD (rs7647854, odds ratio: 1.16, 95% confidence interval: 1.11–1.21, p = 5.2 × 10-11). Using polygenic score analyses, we show that earlier-onset MDD is genetically more similar to schizophrenia and bipolar disorder than adult-onset MDD. Conclusions We demonstrate that using additional phenotype data previously collected by genetic studies to tackle phenotypic heterogeneity in MDD can successfully lead to the discovery of genetic risk factor despite reduced sample size. Furthermore, our results suggest that the genetic susceptibility to MDD differs between adult- and earlier-onset MDD, with earlier-onset cases having a greater genetic overlap with schizophrenia and bipolar disorder.


BMJ | 2012

Effect of assertive outreach after suicide attempt in the AID (assertive intervention for deliberate self harm) trial: randomised controlled trial

Britt Reuter Morthorst; Jesper Krogh; Annette Erlangsen; Francisco Alberdi; Merete Nordentoft

Objective To assess whether an assertive outreach intervention after suicide attempt could reduce the frequency of subsequent suicidal acts, compared with standard treatment. Design Randomised, parallel group, superiority trial with blinded outcome assessment. Setting Outpatient intervention at one location at Copenhagen University Hospital, Denmark. Participants Patients older than 12 years admitted to regional hospitals in Copenhagen with a suicide attempt within the past 14 days. We excluded patients diagnosed with schizophrenia spectrum disorders and patients living in institutions. Intervention Case management through assertive outreach that provided crisis intervention and flexible problem solving. This approach incorporated motivational support and actively assisted patients to scheduled appointments to improve adherence with after-treatment as an add on to standard treatment. Main outcome Repeated suicide attempt and death by suicide, recorded in medical records and death register at 1-year follow-up. Results 243 patients were included. During 12 months of follow-up, 20/123 (16%) patients in the intervention group had been registered in hospital records with subsequent suicide attempt, compared with 13/120 (11%) in the control group (odds ratio 1.60, 95% confidence interval 0.76 to 3.38; P=0.22). By contrast, self reported data on new events showed 11/95 (12%) in the intervention group versus 13/74 (18%) in the control group (0.61, 0.26 to 1.46; P=0.27). By imputing missing data on the selfreported outcomes, we estimated 15/123 (12%) events in the intervention group and 23/120 (19%) in the control group (0.69, 0.34 to 1.43; P=0.32). Conclusion Assertive outreach showed no significant effect on subsequent suicide attempt. The difference in rates of events between register data and self reported data could indicate detection bias. Trial registration ClinicalTrials.gov NCT00700089.


Current Neuropharmacology | 2016

Inflammation in Depression and the Potential for Anti-Inflammatory Treatment.

Ole Köhler; Jesper Krogh; Ole Mors; Michael Eriksen Benros

Accumulating evidence supports an association between depression and inflammatory processes, a connection that seems to be bidirectional. Clinical trials have indicated antidepressant treatment effects for anti-inflammatory agents, both as add-on treatment and as monotherapy. In particular, nonsteroidal anti-inflammatory drugs (NSAIDs) and cytokine-inhibitors have shown antidepressant treatment effects compared to placebo, but also statins, poly-unsaturated fatty acids, pioglitazone, minocycline, modafinil, and corticosteroids may yield antidepressant treatment effects. However, the complexity of the inflammatory cascade, limited clinical evidence, and the risk for side effects stress cautiousness before clinical application. Thus, despite proof-of-concept studies of anti-inflammatory treatment effects in depression, important challenges remain to be investigated. Within this paper, we review the association between inflammation and depression together with the current evidence on use of anti-inflammatory treatment in depression. Based on this, we address the questions and challenges that seem most important and relevant to future studies, such as timing, most effective treatment lengths and identification of subgroups of patients potentially responding better to different anti-inflammatory treatment regimens.


Journal of Affective Disorders | 2014

The effect of exercise on hippocampal volume and neurotrophines in patients with major depression–A randomized clinical trial

Jesper Krogh; Egill Rostrup; Carsten Thomsen; Poul Videbech; Merete Nordentoft

BACKGROUND The hippocampal volume is reduced in patients with major depression. Exercise leads to an increased hippocampal volume in schizophrenia and in healthy old adults. The effect of exercise on hippocampal volume is potentially mediated by brain derived neurotrophic factor (BDNF), vascular endothelial growth factor (VEGF), and insulin like growth factor 1 (IGF-1). The aim of this trial was to assess the effect of an aerobic exercise intervention on hippocampal volume and serum BDNF, VEGF, and IGF-1 in patients with major depression. METHODS Patients were randomized to an aerobic exercise intervention (n=41) or a control condition (n=38). Both interventions consisted of three supervised sessions per week during a three months period. RESULTS Post-intervention the increase in maximal oxygen uptake was 3.90 ml/kg/min (SD 5.1) in the aerobic exercise group and 0.95 ml/kg/min (SD 6.2) in the control group (p=0.03). The hippocampal volume, BDNF, VEGF, or IGF-1 did not differ between the two groups. Post-hoc we found a positive association between change in hippocampal volume and verbal memory (Rho=0.27; p=0.05) and change in hippocampal volume and depressive symptoms (Rho=0.30; p=0.03). LIMITATIONS Participation was low in both groups corresponding to an average participation of one session per week. CONCLUSION Despite a significant increase in maximal oxygen uptake, a pragmatic exercise intervention did not increase hippocampal volume or resting levels of neurotrophines in out-patients with mild to moderate major depression. Trial identifier: ClinicalTrials.gov (NCT00695552).

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Michael Eriksen Benros

Copenhagen University Hospital

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Helene Speyer

University of Copenhagen

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Carsten Hjorthøj

Copenhagen University Hospital

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Ane Moltke

University of Copenhagen

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Ane Storch Jakobsen

Copenhagen University Hospital

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