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X Demographics
Mendeley readers
Attention Score in Context
| Title |
Adverse Associations between Visceral Adiposity, Brain Structure, and Cognitive Performance in Healthy Elderly
|
|---|---|
| Published in |
Frontiers in Aging Neuroscience, January 2011
|
| DOI | 10.3389/fnagi.2011.00012 |
| Pubmed ID | |
| Authors |
Vivian Isaac, Sam Sim, Hui Zheng, Vitali Zagorodnov, E. Shyong Tai, Michael Chee |
| Abstract |
The link between central adiposity and cognition has been established by indirect measures such as body mass index (BMI) or waist-hip ratio. Magnetic resonance imaging (MRI) quantification of central abdominal fat has been linked to elevated risk of cardiovascular and cerebro-vascular disease. However it is not known how quantification of visceral fat correlates with cognitive performance and measures of brain structure. We filled this gap by characterizing the relationships between MRI measures of abdominal adiposity, brain morphometry, and cognition, in healthy elderly. Methods: A total of 184 healthy community dwelling elderly subjects without cognitive impairment participated in this study. Anthropometric and biochemical markers of cardiovascular risk, neuropsychological measurements as well as MRI of the brain and abdomen fat were obtained. Abdominal images were segmented into subcutaneous adipose tissue and visceral adipose tissue (VAT) adipose tissue compartments. Brain MRI measures were analyzed quantitatively to determine total brain volume, hippocampal volume, ventricular volume, and cortical thickness. Results: VAT showed negative association with verbal memory (r = 0.21, p = 0.005) and attention (r = 0.18, p = 0.01). Higher VAT was associated with lower hippocampal volume (F = 5.39, p = 0.02) and larger ventricular volume (F = 6.07, p = 0.02). The participants in the upper quartile of VAT had the lowest hippocampal volume even after adjusting for age, gender, hypertension, and BMI (b = -0.28, p = 0.005). There was a significant age by VAT interaction for cortical thickness in the left prefrontal region. Conclusion: In healthy older adults, elevated VAT is associated with negative effects on cognition, and brain morphometry. |
X Demographics
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 1 | 100% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 1 | 100% |
Mendeley readers
The data shown below were compiled from readership statistics for 119 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Canada | 2 | 2% |
| Switzerland | 1 | <1% |
| Ireland | 1 | <1% |
| Unknown | 115 | 97% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Ph. D. Student | 26 | 22% |
| Student > Master | 15 | 13% |
| Researcher | 12 | 10% |
| Student > Bachelor | 12 | 10% |
| Student > Doctoral Student | 10 | 8% |
| Other | 18 | 15% |
| Unknown | 26 | 22% |
| Readers by discipline | Count | As % |
|---|---|---|
| Medicine and Dentistry | 28 | 24% |
| Neuroscience | 17 | 14% |
| Psychology | 13 | 11% |
| Agricultural and Biological Sciences | 7 | 6% |
| Nursing and Health Professions | 4 | 3% |
| Other | 17 | 14% |
| Unknown | 33 | 28% |
Attention Score in Context
This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 13 December 2011.
All research outputs
#15,249,959
of 22,675,759 outputs
Outputs from Frontiers in Aging Neuroscience
#3,560
of 4,720 outputs
Outputs of similar age
#140,077
of 180,328 outputs
Outputs of similar age from Frontiers in Aging Neuroscience
#6
of 12 outputs
Altmetric has tracked 22,675,759 research outputs across all sources so far. This one is in the 22nd percentile – i.e., 22% of other outputs scored the same or lower than it.
So far Altmetric has tracked 4,720 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 13.1. This one is in the 20th percentile – i.e., 20% of its peers scored the same or lower than it.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 180,328 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 12th percentile – i.e., 12% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 12 others from the same source and published within six weeks on either side of this one. This one has gotten more attention than average, scoring higher than 50% of its contemporaries.