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• W2046110868 abstract "Objective A mouse model of diabetic embryopathy in C57BL/6J background was established to use the resources of genetically engineered mice in which a specific gene is deleted or overexpressed. To test whether our previous fundamental findings in the rat model of diabetic embryopathy are transferable to this mouse model of diabetic embryopathy, levels of phosphorylated-JNK1/2 (c-Jun N-terminal kinase 1 and 2) and apoptotic markers (cleaved caspase 3) were determined. To establish a link between oxidative stress signaling and diabetic embryopathy, levels of phosphorylated-p66Shc (which is a key signaling molecule that mediates oxidative stress-induced apoptosis) were evaluated. Study Design Diabetes mellitus was induced in female C57BL/6J mice by an intravenous injection of streptozotocin (75 mg/kg). Glucose levels were controlled by the subcutaneous implantation of insulin pellets. The female mice were mated with normal male mice. At gestation day 5 or embryonic day 5 (E5), the insulin pellets were removed from a group of animals, which made them hyperglycemic (> 250 mg/dL glucose). The animals with retained insulin pellets served as controls. On embryonic day 11, mice were killed, and embryos were dissected from the uteri for examination. Embryos and yolk sacs from individual conceptus were collected. Levels of phosphorylated-JNK1/2, phosphorylated-p66Shc, and cleaved caspase 3 were determined in the embryos and yolk sacs. Results Malformation rates in embryos from diabetic mice were 3-fold higher than those in embryos from nondiabetic or diabetic/euglycemic control groups. JNK1/2, especially p54 JNK isoform, which is predominantly expressed by jnk2 gene, was activated in malformed embryos and their respective yolk sacs from diabetic mice and was significantly higher than those in normally developed embryos and their respective yolk sacs from nondiabetic and diabetic mice. Correlating to JNK1/2 activation, phosphorylated-p66Shc was also significantly increased in malformed embryos and their respective yolk sacs from diabetic mice than in normally developed embryos and their respective yolk sacs from nondiabetic and diabetic mice. Cleaved caspase 3 was observed in malformed embryos from diabetic mice. Conclusion The present study shows that maternal hyperglycemia is able to induce embryonic dysmorphogenesis in C57BL/6J mice that is comparable with that seen in the rat model of diabetic embryopathy. Like the well-studied rat model of diabetic embryopathy, activation of JNK1/2 and p66Shc and the increase of apoptotic markers are manifested in this mouse model of diabetic embryopathy. These findings suggest that the activation of oxidative stress signaling in diabetic embryopathy leads to excessive embryonic cell apoptosis and ultimately embryonic dysmorphogenesis. To apply the powerful genetic approach to the research of diabetic embryopathy, a mouse is a better animal model than a rat because all gene knockout (deletion) and gene transgenic (gene overexpression) animals are made in the mouse. The mouse model of diabetic embryopathy that was established in the present study may serve as a suitable substitute for the rat model of diabetic embryopathy, thus enabling us and other investigators to use genetically engineered technologies in the study of diabetic embryopathy. A mouse model of diabetic embryopathy in C57BL/6J background was established to use the resources of genetically engineered mice in which a specific gene is deleted or overexpressed. To test whether our previous fundamental findings in the rat model of diabetic embryopathy are transferable to this mouse model of diabetic embryopathy, levels of phosphorylated-JNK1/2 (c-Jun N-terminal kinase 1 and 2) and apoptotic markers (cleaved caspase 3) were determined. To establish a link between oxidative stress signaling and diabetic embryopathy, levels of phosphorylated-p66Shc (which is a key signaling molecule that mediates oxidative stress-induced apoptosis) were evaluated. Diabetes mellitus was induced in female C57BL/6J mice by an intravenous injection of streptozotocin (75 mg/kg). Glucose levels were controlled by the subcutaneous implantation of insulin pellets. The female mice were mated with normal male mice. At gestation day 5 or embryonic day 5 (E5), the insulin pellets were removed from a group of animals, which made them hyperglycemic (> 250 mg/dL glucose). The animals with retained insulin pellets served as controls. On embryonic day 11, mice were killed, and embryos were dissected from the uteri for examination. Embryos and yolk sacs from individual conceptus were collected. Levels of phosphorylated-JNK1/2, phosphorylated-p66Shc, and cleaved caspase 3 were determined in the embryos and yolk sacs. Malformation rates in embryos from diabetic mice were 3-fold higher than those in embryos from nondiabetic or diabetic/euglycemic control groups. JNK1/2, especially p54 JNK isoform, which is predominantly expressed by jnk2 gene, was activated in malformed embryos and their respective yolk sacs from diabetic mice and was significantly higher than those in normally developed embryos and their respective yolk sacs from nondiabetic and diabetic mice. Correlating to JNK1/2 activation, phosphorylated-p66Shc was also significantly increased in malformed embryos and their respective yolk sacs from diabetic mice than in normally developed embryos and their respective yolk sacs from nondiabetic and diabetic mice. Cleaved caspase 3 was observed in malformed embryos from diabetic mice. The present study shows that maternal hyperglycemia is able to induce embryonic dysmorphogenesis in C57BL/6J mice that is comparable with that seen in the rat model of diabetic embryopathy. Like the well-studied rat model of diabetic embryopathy, activation of JNK1/2 and p66Shc and the increase of apoptotic markers are manifested in this mouse model of diabetic embryopathy. These findings suggest that the activation of oxidative stress signaling in diabetic embryopathy leads to excessive embryonic cell apoptosis and ultimately embryonic dysmorphogenesis. To apply the powerful genetic approach to the research of diabetic embryopathy, a mouse is a better animal model than a rat because all gene knockout (deletion) and gene transgenic (gene overexpression) animals are made in the mouse. The mouse model of diabetic embryopathy that was established in the present study may serve as a suitable substitute for the rat model of diabetic embryopathy, thus enabling us and other investigators to use genetically engineered technologies in the study of diabetic embryopathy." @default.
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• W2046110868 date "2008-01-01" @default.
• W2046110868 modified "2023-10-18" @default.
• W2046110868 title "Activation of oxidative stress signaling that is implicated in apoptosis with a mouse model of diabetic embryopathy" @default.
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• W2046110868 cites W1977143238 @default.
• W2046110868 cites W1986456220 @default.
• W2046110868 cites W1994550065 @default.
• W2046110868 cites W2024468216 @default.
• W2046110868 cites W2027234556 @default.
• W2046110868 cites W2031095238 @default.
• W2046110868 cites W2033968512 @default.
• W2046110868 cites W2045977087 @default.
• W2046110868 cites W2049431269 @default.
• W2046110868 cites W2053560001 @default.
• W2046110868 cites W2057301012 @default.
• W2046110868 cites W2059169851 @default.
• W2046110868 cites W2072252062 @default.
• W2046110868 cites W2080389159 @default.
• W2046110868 cites W2081020275 @default.
• W2046110868 cites W2086402424 @default.
• W2046110868 cites W2088654299 @default.
• W2046110868 cites W2088917778 @default.
• W2046110868 cites W2099275774 @default.
• W2046110868 cites W2103165244 @default.
• W2046110868 cites W2109830441 @default.
• W2046110868 cites W2110787746 @default.
• W2046110868 cites W2112821970 @default.
• W2046110868 cites W2123868590 @default.
• W2046110868 cites W2128242430 @default.
• W2046110868 cites W2138574897 @default.
• W2046110868 cites W2146965545 @default.
• W2046110868 cites W2153859777 @default.
• W2046110868 cites W2280525970 @default.
• W2046110868 cites W2332060283 @default.
• W2046110868 doi "https://doi.org/10.1016/j.ajog.2007.06.070" @default.
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