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X Demographics
Mendeley readers
Attention Score in Context
| Title |
Early cardiovascular changes occurring in diet-induced, obese insulin-resistant rats
|
|---|---|
| Published in |
Molecular and Cellular Biochemistry, May 2012
|
| DOI | 10.1007/s11010-012-1340-9 |
| Pubmed ID | |
| Authors |
Barbara Huisamen, Daneel Dietrich, Nicole Bezuidenhout, John Lopes, Brian Flepisi, Dee Blackhurst, Amanda Lochner |
| Abstract |
The metabolic syndrome is recognized as a cluster of disturbances associated with obesity, type 2 diabetes and hypertension. Over the past two decades, the number of people with the metabolic syndrome has increased at an alarming rate. This increase is associated with the global epidemic of both obesity and diabetes. Cardiovascular mortality is increased among diabetics and obesity-related insulin-resistant patients, and obesity is currently recognized as independent risk factor for cardiovascular disease. We aimed to establish the effects of a short period of an altered diet on the heart using a rat model of hyperphagia-induced obesity (diet supplemented with sucrose and condensed milk for 8 weeks = DIO) compared to age-matched controls. Isolated, perfused hearts were subjected to global or regional ischaemia/reperfusion. Function on reperfusion was recorded and infarct size determined. A plasma lipid profile was established via HPLC-based methods and proteins involved in metabolic signalling determined either by western blotting or RT-PCR. 8 weeks of diet resulted in whole-body but not myocardial insulin resistance, increased plasma triglyceride and phospholipid levels as well as increased lipid peroxidation. Despite the similar baseline function, hearts from DIO animals showed significantly poorer postischaemic recovery than controls (41.9 % RPP recovery vs 57.9 %, P < 0.05, n = 7-11/group) but surprisingly, smaller infarct size (24.95 ± 1.97 vs 47.26 ± 4.05 % of the area at risk, P < 0.005, n = 8/group). Basal phosphorylation of PKB/Akt was elevated but IRS-1 and SERCA-2 expression severely downregulated. In conclusion, after only 8 weeks of a slight change in diet, the rat heart shows signs of metabolic remodelling. Some of these changes may be protective but others may be detrimental and eventually lead to maladaptation. |
X Demographics
The data shown below were collected from the profile of 1 X user who shared this research output. Click here to find out more about how the information was compiled.
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 42 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| South Africa | 2 | 5% |
| Unknown | 40 | 95% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Ph. D. Student | 8 | 19% |
| Researcher | 8 | 19% |
| Student > Master | 8 | 19% |
| Student > Bachelor | 3 | 7% |
| Other | 2 | 5% |
| Other | 8 | 19% |
| Unknown | 5 | 12% |
| Readers by discipline | Count | As % |
|---|---|---|
| Agricultural and Biological Sciences | 15 | 36% |
| Medicine and Dentistry | 7 | 17% |
| Biochemistry, Genetics and Molecular Biology | 6 | 14% |
| Chemistry | 2 | 5% |
| Psychology | 2 | 5% |
| Other | 5 | 12% |
| Unknown | 5 | 12% |
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 03 August 2012.
All research outputs
#21,445,966
of 23,940,793 outputs
Outputs from Molecular and Cellular Biochemistry
#1,884
of 2,404 outputs
Outputs of similar age
#151,629
of 167,246 outputs
Outputs of similar age from Molecular and Cellular Biochemistry
#19
of 26 outputs
Altmetric has tracked 23,940,793 research outputs across all sources so far. This one is in the 1st percentile – i.e., 1% of other outputs scored the same or lower than it.
So far Altmetric has tracked 2,404 research outputs from this source. They receive a mean Attention Score of 3.9. This one is in the 1st percentile – i.e., 1% 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 167,246 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 1st percentile – i.e., 1% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 26 others from the same source and published within six weeks on either side of this one. This one is in the 1st percentile – i.e., 1% of its contemporaries scored the same or lower than it.