Meta-analysis of associations between human brain volume and intelligence differences: How strong are they and what do they mean?

2015 ◽  
Vol 57 ◽  
pp. 411-432 ◽  
Author(s):  
Jakob Pietschnig ◽  
Lars Penke ◽  
Jelte M. Wicherts ◽  
Michael Zeiler ◽  
Martin Voracek
Author(s):  
Jakob Pietschnig ◽  
Lars Penke ◽  
Jelte M Wicherts ◽  
Michael Zeiler ◽  
Martin Voracek

Author(s):  
Geoffrey Caine ◽  
◽  
Renate Caine
Keyword(s):  

2018 ◽  
Vol 212 (1) ◽  
pp. 19-26 ◽  
Author(s):  
Akihiro Takamiya ◽  
Jun Ku Chung ◽  
Kuo-ching Liang ◽  
Ariel Graff-Guerrero ◽  
Masaru Mimura ◽  
...  

BackgroundElectroconvulsive therapy (ECT) is one of the most effective treatments for depression, although the underlying mechanisms remain unclear. Animal studies have shown that electroconvulsive shock induced neuroplastic changes in the hippocampus.AimsTo summarise volumetric magnetic resonance imaging studies investigating the effects of ECT on limbic brain structures.MethodA systematic review and meta-analysis was conducted to assess volumetric changes of each side of the hippocampus and amygdala before and after ECT. Standardised mean difference (SMD) was calculated.ResultsA total of 8 studies (n = 193) were selected for our analyses. Both right and left hippocampal and amygdala volumes increased after ECT. Meta-regression analyses revealed that age, percentage of those responding and percentage of those in remission were negatively associated with volume increases in the left hippocampus.ConclusionsECT increased brain volume in the limbic structures. The clinical relevance of volume increase needs further investigation.Declaration of interestNone.


2020 ◽  
Vol 2020 ◽  
pp. 1-7
Author(s):  
Xianyong Liao ◽  
Lin Qian ◽  
Song Zhang ◽  
Xiang Chen ◽  
Jing Lei

Objectives. (1) To conduct a network meta-analysis of clinical drugs used for cardiogenic shock and (2) provide evidence for the selection of medication for the treatment of this condition. Methods. PubMed, EMBASE, Cochrane library, China HowNet (CNKI), Wanfang database, and Weipu database were searched using keywords Dopamine, Dobutamine, Epinephrine, Adrenaline, Norepinephrine, Noradrenaline, Milrinone, Natriuretic peptide, Recombinant human brain natriuretic peptide, Levosimendan, Cardiac shock, and Cardiogenic shock. We select literature according to prespecified inclusion and exclusion criteria and record data such as drug type, mortality, and adverse reactions. Results. Twenty-eight of 1387 articles met inclusion criteria, comprising 1806 patients who suffered from cardiogenic shock. Dopamine, dobutamine, epinephrine, norepinephrine, milrinone, recombinant human brain natriuretic peptide, and levosimendan were all commonly used in the treatment of cardiogenic shock. Milrinone was most effective at reducing mortality and had the lowest incidence of adverse reactions. Conclusion. This network meta-analysis demonstrated that milrinone was the most effective medication at reducing mortality and adverse events in patients suffering from cardiogenic shock.


Author(s):  
Huijun Wu ◽  
Hongjie Yan ◽  
Yang Yang ◽  
Min Xu ◽  
Yuhu Shi ◽  
...  

2020 ◽  
pp. jmedgenet-2020-106830
Author(s):  
Yan Zhang ◽  
Shiwu Li ◽  
Xiaoyan Li ◽  
Yongfeng Yang ◽  
Wenqiang Li ◽  
...  

The association between NOTCH4 and schizophrenia has been repeatedly reported. However, the results from different genetic studies are inconsistent, and the role of NOTCH4 in schizophrenia pathogenesis remains unknown. Here, we provide convergent lines of evidence that support NOTCH4 as a schizophrenia risk gene. We first performed a meta-analysis and found that a genetic variant (rs2071287) in NOTCH4 was significantly associated with schizophrenia (a total of 125 848 subjects, p=8.31×10−17), with the same risk allele across all tested samples. Expression quantitative trait loci (eQTL) analysis showed that rs2071287 was significantly associated with NOTCH4 expression (p=1.08×10−14) in human brain tissues, suggesting that rs2071287 may confer schizophrenia risk through regulating NOTCH4 expression. Sherlock integrative analysis using a large-scale schizophrenia GWAS and eQTL data from human brain tissues further revealed that NOTCH4 was significantly associated with schizophrenia (p=4.03×10−7 in CMC dataset and p=3.06×10−6 in xQTL dataset), implying that genetic variants confer schizophrenia risk through modulating NOTCH4 expression. Consistently, we found that NOTCH4 was significantly downregulated in brains of schizophrenia patients compared with controls (p=2.53×10−3), further suggesting that dysregulation of NOTCH4 may have a role in schizophrenia. Finally, we showed that NOTCH4 regulates proliferation, self-renewal, differentiation and migration of neural stem cells, suggesting that NOTCH4 may confer schizophrenia risk through affecting neurodevelopment. Our study provides convergent lines of evidence that support the involvement of NOTCH4 in schizophrenia. In addition, our study also elucidates a possible mechanism for the role of NOTCH4 in schizophrenia pathogenesis.


NeuroImage ◽  
2001 ◽  
Vol 13 (6) ◽  
pp. 804 ◽  
Author(s):  
Matthias Kraemer ◽  
Thorsten Schormann ◽  
Peter Bi ◽  
Georg Hagemann ◽  
Karl Zilles ◽  
...  

2015 ◽  
Vol 357 (1-2) ◽  
pp. 8-18 ◽  
Author(s):  
Timothy Vollmer ◽  
James Signorovitch ◽  
Lynn Huynh ◽  
Philip Galebach ◽  
Caroline Kelley ◽  
...  

2009 ◽  
Vol 30 (11) ◽  
pp. 3719-3735 ◽  
Author(s):  
P. Cédric M.P. Koolschijn ◽  
Neeltje E.M. van Haren ◽  
Gerty J.L.M. Lensvelt-Mulders ◽  
Hilleke E. Hulshoff Pol ◽  
René S. Kahn

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