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| 1 | Linagliptin alleviates fatty liver disease in diabetic db/db mice显示文摘AIM To study the effects of linagliptin on the structural signs of non-alcoholic fatty liver disease(NAFLD) in db/db mice. METHODS Male diabetic db /db mice(BKS.Cg-Dock7m+/+Leprdb/J) aged 10 wk received the dipeptidyl peptidase 4(DPP4) inhibitor linagliptin(10 mg/kg) or saline as a placebo once per day by gavage for 8 wk. Intact db/db mice served as controls. Structural changes in the liver were analyzed from light and electron microscopic images of sections from intact, placebo-treated and linagliptin-treated animals. We estimated the changes in hepatocytes, sinusoidal cells, liver microvasculature and lymphatic roots. Hepatic staining for lymphatic vessel endothelial hyaluronan receptor-1(LYVE-1) was assessed by immunohistochemistry. RESULTS In 18-wk-old diabetic mice, liver steatosis(predominantly microvesicular and mediovesicular steatosis) was accompanied by dilation of the roots of the lymphatic system, interlobular blood vessels and bile canaliculi. Compared to saline-treated mice, linagliptin-treated mice exhibited a reduction in the mean numeral densities of hepatocytes with lipid droplets(92.4% ± 1.7% vs 64.9% ± 5.8% per field of view, P = 0.0002) and a lower proportion of hepatocytes with a high density of lipid droplets(20.7% ± 3.6% vs 50.4% ± 3.1%, P = 0.0007). We observed heterogeneous hepatocytes and relatively preserved cell structures in the linagliptin group. Dilation of blood and lymphatic vessels, as well as ultrastructural changes in the hepatocyte endoplasmic reticulum and mitochondria, were alleviated by linagliptin treatment. In intact and placebo-treated mice, immunohistochemical staining for LYVE-1 was observed in the endothelial cells of interlobular lymphatic vessels and on the membranes of some endothelial sinusoidal cells. We observed an enlarged LYVE-1 reaction area in linagliptin-treated mice compared to intact and placebo-treated mice. The improvement in the structural parameters of the liver in linagliptin-treated mice was independent to changes in the plasma glucose levels. CONCLUSION The DPP4 inhibitor linagliptin alleviates liver steatosis and structural changes in the hepatic microvasculature and lymphatic roots in a model of NAFLD in diabetic db/db mice. | Svetlana V Michurina Irina Ju Ishenko Vadim V Klimontov Sergey A Archipov Natalia E Myakina Marina A Cherepanova Eugenii L Zavjalov Galina V Koncevaya Vladimir I Konenkov | 2016 | World Journal of Diabetes2016，7，19： | 2 |
| 2 | TDMA scheduling design of multihop packet radio networks based on latin squares显示文摘 | JU J H LI V O K | 1999 | IEEE Journal on Selected Areas in Communications1999，17，8： | 1 |
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| 11 | Molecular imprinting: a dynamic technique for diverse applications in analytical chemistry 显示文摘 | Kandimalla V B Ju H | 2004 | Anal Bioanal Chem2004，380，： | 1 |
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| 15 | The effect of doping and processing conditions on properties of La1-xSrxGa1-yMgyO3-δ显示文摘 | Gorelov V P Bronin D I Ju V | 2001 | Eur Ceram Soc2001，21，： | 1 |
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