Abstract
With the global rise in consumption of western diet, obesity is becoming a pandemic. High fat and high calorie diet (though more palatable) have been associated with a range of metabolic disorders. Oxidative stress and insulin resistance have a link to the dietary etiology of diabetes and obesity; on the other hand, neuroinflammation and abnormal brain insulin signaling is said to cause cognitive decline when high fat diet (HFD) is consumed. In this study, mice were fed a home-made HFD with a total energy content of 5340kcal/kg. The overall energy contribution of saturated and unsaturated fat was about 70%. Animals were divided into Group I and II of 5 mice each. Group I (control group) were fed normal chow and water ad libidum. Group II (test group) were fed HFD and water ad libidum. HFD significantly (p<0.05) increased the body weight of the test group (40 ±7.7) as compared to control (30 ± 2.9). Blood glucose levels in the test group was also significantly higher (111.6 ± 5.2) compared to the control (77.6 ± 8.7). Morris water maze escape latency in the test group was not significantly different (68 ± 26.3) compared to the control (72 ± 20.9). Similarly, the time spent in target quadrant in the test group was not significantly different (20.8 ± 10.9) compared to the control (15.8 ± 5.6). In the Y-maze the control group had a significantly higher (29.6 ± 3.5) percentage alternations compared to the test group (21 ± 13.1). It is obvious that the chronic administration of HFD in mice altered the body's metabolic processes as evident in the significant weight gain, hyperglycemia and cognitive deficit. These can be attributed to the oxidative damage, insulin dysregulation and pro-inflammatory potentials of HFD.
Highlights
Diet is essential for the sustenance of life
Body weight The chart shows a statistically significant gain in body weight in the high fat diet (HFD) group compared to the control group. * indicates statistical significance (p
In this study we found that in the Y-maze experiment the animals fed on high fat diet performed poorly demonstrating an impaired learning and visuo-spatial memory
Summary
Diet is essential for the sustenance of life It helps to maintain normal body physiology.[1] Modernization has inundated our society with an abundance of palatable foods that are consumed in high amounts, resulting in a rising prevalence of obesity and other metabolic disorders. High fat diet increases hedonic eating which results in obesity.[2,3] The evolving connection between diabetes, obesity and dementia poses a serious public health challenge in today's society.[4,5] Research in recent times have shown the deleterious impact of high fat, high calorie diets on the various brain systems of animals and humans Repeated intake of such diets has been linked to injury of the hippocampus, a brain structure responsible for promoting learning and memory.[6,7] A key
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