Extracts from the Leaves of <i>Cissus verticillata</i> Ameliorate High-Fat Diet-Induced Memory Deficits in Mice
Woosuk Kim,
Hyun Jung Kwon,
Hyo Young Jung,
Soon-Sung Lim,
Beom-Goo Kang,
Yong-Bok Jo,
Dong-Sool Yu,
Soo Young Choi,
In Koo Hwang,
Dae Won Kim
Affiliations
Woosuk Kim
Department of Biomedical Sciences, Research Institute for Bioscience and Biotechnology, Hallym University, Chuncheon 24252, Korea
Hyun Jung Kwon
Department of Biomedical Sciences, Research Institute for Bioscience and Biotechnology, Hallym University, Chuncheon 24252, Korea
Hyo Young Jung
Department of Veterinary Medicine, Institute of Veterinary Science, Chungnam National University, Daejeon 34134, Korea
Soon-Sung Lim
Department of Food Science and Nutrition, Institute of Korean Nutrition, Hallym University, Chuncheon 24252, Korea
Beom-Goo Kang
Department of Biochemistry, College of Medicine, Hallym University, Chuncheon 24252, Korea
Yong-Bok Jo
Department of Convergence Technology, Graduate School of Venture, Hoseo University, Seoul 06724, Korea
Dong-Sool Yu
Department of Venture Management Graduate School of Venture, Hoseo University, Seoul 06724, Korea
Soo Young Choi
Department of Biomedical Sciences, Research Institute for Bioscience and Biotechnology, Hallym University, Chuncheon 24252, Korea
In Koo Hwang
Department of Anatomy and Cell Biology, Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, Seoul 08826, Korea
Dae Won Kim
Department of Biochemistry and Molecular Biology, Research Institute of Oral Sciences, College of Dentistry, Gangneung-Wonju National University, Gangneung 25457, Korea
We investigated the effects of Cissus verticillata leaf extract (CVE) on a high-fat diet (HFD)-induced obesity and memory deficits. Male mice (5 weeks of age) were fed vehicle (distilled water), or 30, 100, or 300 mg/kg of CVE once a day for 8 weeks with an HFD. Treatment with CVE resulted in lower body weight and glucose levels in a concentration- and feeding time-dependent manner. LDL cholesterol and triglyceride levels were significantly lower in the CVE-treated HFD group than in the vehicle-treated HFD group. In contrast, high-density lipoprotein cholesterol levels did not show any significant changes. Lipid droplets and ballooning were reduced depending on the concentration of CVE treatment compared to the HFD group. Treatment with CVE ameliorated the increase in glucagon and immunoreactivities in the pancreas, and novel object recognition memory was improved by 300 mg/kg CVE treatment compared to the HFD group. More proliferating cells and differentiated neuroblasts were higher in mice treated with CVE than in vehicle-treated HFD-fed mice. Brain-derived neurotrophic factor (BDNF) levels were significantly decreased in the HFD group, which was facilitated by treatment with 300 mg/kg CVE in hippocampal homogenates. These results suggest that CVE ameliorates HFD-induced obesity and memory deficits in mice, associated with increased BDNF levels in the hippocampus.
