G-Rh4 improves pancreatic β-cells dysfunction

The aim of this study is to investigate the hypoglycemic mechanism of ginsenoside Rh4 (G-Rh4) in vivo and in vitro models. Our results showed that G-Rh4 markedly improved the symptoms of diabetes, normalized glucose metabolism, and promoted insulin secretion which contributed to attenuate symptoms o...
Ausführliche Beschreibung

Gespeichert in:

Autor*in:	Liu, Yao [verfasserIn] Deng, Jianjun [verfasserIn] Fan, Daidi [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2020

Schlagwörter:	G-Rh4 Pancreatic β-cells dysfunction Antioxidant capacity Nrf2 Akt

Übergeordnetes Werk:	Enthalten in: Food and chemical toxicology - New York, NY [u.a.] : Elsevier, 1982, 148
Übergeordnetes Werk:	volume:148

DOI / URN:	10.1016/j.fct.2020.111925

Katalog-ID:	ELV005428963

Internformat


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520			\|a The aim of this study is to investigate the hypoglycemic mechanism of ginsenoside Rh4 (G-Rh4) in vivo and in vitro models. Our results showed that G-Rh4 markedly improved the symptoms of diabetes, normalized glucose metabolism, and promoted insulin secretion which contributed to attenuate symptoms of hyperglycemia in high-fat diet/streptozocin induced type 2 diabetes mellitus mice. This positive effect was associated with increased expression of Nrf2 by G-Rh4. Further results demonstrated that G-Rh4 promoted Nrf2 nucleus translocation as well as up-regulated the expression of HO-1, NQO1 and GCLC. Furthermore, we also found that G-Rh4 increased insulin secretion by activating the signal pathway of PDX-1, GLUT2 and GCK. More importantly, the protective effects of G-Rh4 on alloxan-induced upregulation of Nrf2 target gene and insulin secretion were abolished by Nrf2 knockdown. Finally, we explored the mechanism of G-Rh4 associated with Nrf2 activation and found that the Akt deficiency inhibited G-Rh4-mediated Nrf2 nuclear translocation. Altogether, we present evidence that G-Rh4 increased expression of Nrf2 and results in increased antioxidant gene, as well as a rise in insulin secretion in vivo and in vitro. Exploiting the Nrf2 pathway may show great potential as a therapeutic strategy to improve pancreatic β-cells dysfunction in the diabetic population.
650		4	\|a G-Rh4
650		4	\|a Pancreatic β-cells dysfunction
650		4	\|a Antioxidant capacity
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700	1		\|a Deng, Jianjun \|e verfasserin \|4 aut
700	1		\|a Fan, Daidi \|e verfasserin \|4 aut
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936	b	k	\|a 44.21 \|j Ernährung \|x Medizin
951			\|a AR
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Indexfelder

author_variant	y l yl j d jd d f df
matchkey_str	article:18736351:2020----::r4mrvsacetcel
hierarchy_sort_str	2020
bklnumber	44.21
publishDate	2020
allfields	10.1016/j.fct.2020.111925 doi (DE-627)ELV005428963 (ELSEVIER)S0278-6915(20)30815-2 DE-627 ger DE-627 rda eng 630 640 610 DE-600 44.21 bkl Liu, Yao verfasserin aut G-Rh4 improves pancreatic β-cells dysfunction 2020 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The aim of this study is to investigate the hypoglycemic mechanism of ginsenoside Rh4 (G-Rh4) in vivo and in vitro models. Our results showed that G-Rh4 markedly improved the symptoms of diabetes, normalized glucose metabolism, and promoted insulin secretion which contributed to attenuate symptoms of hyperglycemia in high-fat diet/streptozocin induced type 2 diabetes mellitus mice. This positive effect was associated with increased expression of Nrf2 by G-Rh4. Further results demonstrated that G-Rh4 promoted Nrf2 nucleus translocation as well as up-regulated the expression of HO-1, NQO1 and GCLC. Furthermore, we also found that G-Rh4 increased insulin secretion by activating the signal pathway of PDX-1, GLUT2 and GCK. More importantly, the protective effects of G-Rh4 on alloxan-induced upregulation of Nrf2 target gene and insulin secretion were abolished by Nrf2 knockdown. Finally, we explored the mechanism of G-Rh4 associated with Nrf2 activation and found that the Akt deficiency inhibited G-Rh4-mediated Nrf2 nuclear translocation. Altogether, we present evidence that G-Rh4 increased expression of Nrf2 and results in increased antioxidant gene, as well as a rise in insulin secretion in vivo and in vitro. Exploiting the Nrf2 pathway may show great potential as a therapeutic strategy to improve pancreatic β-cells dysfunction in the diabetic population. G-Rh4 Pancreatic β-cells dysfunction Antioxidant capacity Nrf2 Akt Deng, Jianjun verfasserin aut Fan, Daidi verfasserin aut Enthalten in Food and chemical toxicology New York, NY [u.a.] : Elsevier, 1982 148 Online-Ressource (DE-627)300898487 (DE-600)1483645-2 (DE-576)259270849 1873-6351 nnns volume:148 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 44.21 Ernährung Medizin AR 148
spelling	10.1016/j.fct.2020.111925 doi (DE-627)ELV005428963 (ELSEVIER)S0278-6915(20)30815-2 DE-627 ger DE-627 rda eng 630 640 610 DE-600 44.21 bkl Liu, Yao verfasserin aut G-Rh4 improves pancreatic β-cells dysfunction 2020 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The aim of this study is to investigate the hypoglycemic mechanism of ginsenoside Rh4 (G-Rh4) in vivo and in vitro models. Our results showed that G-Rh4 markedly improved the symptoms of diabetes, normalized glucose metabolism, and promoted insulin secretion which contributed to attenuate symptoms of hyperglycemia in high-fat diet/streptozocin induced type 2 diabetes mellitus mice. This positive effect was associated with increased expression of Nrf2 by G-Rh4. Further results demonstrated that G-Rh4 promoted Nrf2 nucleus translocation as well as up-regulated the expression of HO-1, NQO1 and GCLC. Furthermore, we also found that G-Rh4 increased insulin secretion by activating the signal pathway of PDX-1, GLUT2 and GCK. More importantly, the protective effects of G-Rh4 on alloxan-induced upregulation of Nrf2 target gene and insulin secretion were abolished by Nrf2 knockdown. Finally, we explored the mechanism of G-Rh4 associated with Nrf2 activation and found that the Akt deficiency inhibited G-Rh4-mediated Nrf2 nuclear translocation. Altogether, we present evidence that G-Rh4 increased expression of Nrf2 and results in increased antioxidant gene, as well as a rise in insulin secretion in vivo and in vitro. Exploiting the Nrf2 pathway may show great potential as a therapeutic strategy to improve pancreatic β-cells dysfunction in the diabetic population. G-Rh4 Pancreatic β-cells dysfunction Antioxidant capacity Nrf2 Akt Deng, Jianjun verfasserin aut Fan, Daidi verfasserin aut Enthalten in Food and chemical toxicology New York, NY [u.a.] : Elsevier, 1982 148 Online-Ressource (DE-627)300898487 (DE-600)1483645-2 (DE-576)259270849 1873-6351 nnns volume:148 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 44.21 Ernährung Medizin AR 148
allfields_unstemmed	10.1016/j.fct.2020.111925 doi (DE-627)ELV005428963 (ELSEVIER)S0278-6915(20)30815-2 DE-627 ger DE-627 rda eng 630 640 610 DE-600 44.21 bkl Liu, Yao verfasserin aut G-Rh4 improves pancreatic β-cells dysfunction 2020 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The aim of this study is to investigate the hypoglycemic mechanism of ginsenoside Rh4 (G-Rh4) in vivo and in vitro models. Our results showed that G-Rh4 markedly improved the symptoms of diabetes, normalized glucose metabolism, and promoted insulin secretion which contributed to attenuate symptoms of hyperglycemia in high-fat diet/streptozocin induced type 2 diabetes mellitus mice. This positive effect was associated with increased expression of Nrf2 by G-Rh4. Further results demonstrated that G-Rh4 promoted Nrf2 nucleus translocation as well as up-regulated the expression of HO-1, NQO1 and GCLC. Furthermore, we also found that G-Rh4 increased insulin secretion by activating the signal pathway of PDX-1, GLUT2 and GCK. More importantly, the protective effects of G-Rh4 on alloxan-induced upregulation of Nrf2 target gene and insulin secretion were abolished by Nrf2 knockdown. Finally, we explored the mechanism of G-Rh4 associated with Nrf2 activation and found that the Akt deficiency inhibited G-Rh4-mediated Nrf2 nuclear translocation. Altogether, we present evidence that G-Rh4 increased expression of Nrf2 and results in increased antioxidant gene, as well as a rise in insulin secretion in vivo and in vitro. Exploiting the Nrf2 pathway may show great potential as a therapeutic strategy to improve pancreatic β-cells dysfunction in the diabetic population. G-Rh4 Pancreatic β-cells dysfunction Antioxidant capacity Nrf2 Akt Deng, Jianjun verfasserin aut Fan, Daidi verfasserin aut Enthalten in Food and chemical toxicology New York, NY [u.a.] : Elsevier, 1982 148 Online-Ressource (DE-627)300898487 (DE-600)1483645-2 (DE-576)259270849 1873-6351 nnns volume:148 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 44.21 Ernährung Medizin AR 148
allfieldsGer	10.1016/j.fct.2020.111925 doi (DE-627)ELV005428963 (ELSEVIER)S0278-6915(20)30815-2 DE-627 ger DE-627 rda eng 630 640 610 DE-600 44.21 bkl Liu, Yao verfasserin aut G-Rh4 improves pancreatic β-cells dysfunction 2020 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The aim of this study is to investigate the hypoglycemic mechanism of ginsenoside Rh4 (G-Rh4) in vivo and in vitro models. Our results showed that G-Rh4 markedly improved the symptoms of diabetes, normalized glucose metabolism, and promoted insulin secretion which contributed to attenuate symptoms of hyperglycemia in high-fat diet/streptozocin induced type 2 diabetes mellitus mice. This positive effect was associated with increased expression of Nrf2 by G-Rh4. Further results demonstrated that G-Rh4 promoted Nrf2 nucleus translocation as well as up-regulated the expression of HO-1, NQO1 and GCLC. Furthermore, we also found that G-Rh4 increased insulin secretion by activating the signal pathway of PDX-1, GLUT2 and GCK. More importantly, the protective effects of G-Rh4 on alloxan-induced upregulation of Nrf2 target gene and insulin secretion were abolished by Nrf2 knockdown. Finally, we explored the mechanism of G-Rh4 associated with Nrf2 activation and found that the Akt deficiency inhibited G-Rh4-mediated Nrf2 nuclear translocation. Altogether, we present evidence that G-Rh4 increased expression of Nrf2 and results in increased antioxidant gene, as well as a rise in insulin secretion in vivo and in vitro. Exploiting the Nrf2 pathway may show great potential as a therapeutic strategy to improve pancreatic β-cells dysfunction in the diabetic population. G-Rh4 Pancreatic β-cells dysfunction Antioxidant capacity Nrf2 Akt Deng, Jianjun verfasserin aut Fan, Daidi verfasserin aut Enthalten in Food and chemical toxicology New York, NY [u.a.] : Elsevier, 1982 148 Online-Ressource (DE-627)300898487 (DE-600)1483645-2 (DE-576)259270849 1873-6351 nnns volume:148 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 44.21 Ernährung Medizin AR 148
allfieldsSound	10.1016/j.fct.2020.111925 doi (DE-627)ELV005428963 (ELSEVIER)S0278-6915(20)30815-2 DE-627 ger DE-627 rda eng 630 640 610 DE-600 44.21 bkl Liu, Yao verfasserin aut G-Rh4 improves pancreatic β-cells dysfunction 2020 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The aim of this study is to investigate the hypoglycemic mechanism of ginsenoside Rh4 (G-Rh4) in vivo and in vitro models. Our results showed that G-Rh4 markedly improved the symptoms of diabetes, normalized glucose metabolism, and promoted insulin secretion which contributed to attenuate symptoms of hyperglycemia in high-fat diet/streptozocin induced type 2 diabetes mellitus mice. This positive effect was associated with increased expression of Nrf2 by G-Rh4. Further results demonstrated that G-Rh4 promoted Nrf2 nucleus translocation as well as up-regulated the expression of HO-1, NQO1 and GCLC. Furthermore, we also found that G-Rh4 increased insulin secretion by activating the signal pathway of PDX-1, GLUT2 and GCK. More importantly, the protective effects of G-Rh4 on alloxan-induced upregulation of Nrf2 target gene and insulin secretion were abolished by Nrf2 knockdown. Finally, we explored the mechanism of G-Rh4 associated with Nrf2 activation and found that the Akt deficiency inhibited G-Rh4-mediated Nrf2 nuclear translocation. Altogether, we present evidence that G-Rh4 increased expression of Nrf2 and results in increased antioxidant gene, as well as a rise in insulin secretion in vivo and in vitro. Exploiting the Nrf2 pathway may show great potential as a therapeutic strategy to improve pancreatic β-cells dysfunction in the diabetic population. G-Rh4 Pancreatic β-cells dysfunction Antioxidant capacity Nrf2 Akt Deng, Jianjun verfasserin aut Fan, Daidi verfasserin aut Enthalten in Food and chemical toxicology New York, NY [u.a.] : Elsevier, 1982 148 Online-Ressource (DE-627)300898487 (DE-600)1483645-2 (DE-576)259270849 1873-6351 nnns volume:148 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 44.21 Ernährung Medizin AR 148
language	English
source	Enthalten in Food and chemical toxicology 148 volume:148
sourceStr	Enthalten in Food and chemical toxicology 148 volume:148
format_phy_str_mv	Article
bklname	Ernährung
institution	findex.gbv.de
topic_facet	G-Rh4 Pancreatic β-cells dysfunction Antioxidant capacity Nrf2 Akt
dewey-raw	630
isfreeaccess_bool	false
container_title	Food and chemical toxicology
authorswithroles_txt_mv	Liu, Yao @@aut@@ Deng, Jianjun @@aut@@ Fan, Daidi @@aut@@
publishDateDaySort_date	2020-01-01T00:00:00Z
hierarchy_top_id	300898487
dewey-sort	3630
id	ELV005428963
language_de	englisch
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author	Liu, Yao
spellingShingle	Liu, Yao ddc 630 bkl 44.21 misc G-Rh4 misc Pancreatic β-cells dysfunction misc Antioxidant capacity misc Nrf2 misc Akt G-Rh4 improves pancreatic β-cells dysfunction
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title	G-Rh4 improves pancreatic β-cells dysfunction
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title_full	G-Rh4 improves pancreatic β-cells dysfunction
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title_sort	g-rh4 improves pancreatic β-cells dysfunction
title_auth	G-Rh4 improves pancreatic β-cells dysfunction
abstract	The aim of this study is to investigate the hypoglycemic mechanism of ginsenoside Rh4 (G-Rh4) in vivo and in vitro models. Our results showed that G-Rh4 markedly improved the symptoms of diabetes, normalized glucose metabolism, and promoted insulin secretion which contributed to attenuate symptoms of hyperglycemia in high-fat diet/streptozocin induced type 2 diabetes mellitus mice. This positive effect was associated with increased expression of Nrf2 by G-Rh4. Further results demonstrated that G-Rh4 promoted Nrf2 nucleus translocation as well as up-regulated the expression of HO-1, NQO1 and GCLC. Furthermore, we also found that G-Rh4 increased insulin secretion by activating the signal pathway of PDX-1, GLUT2 and GCK. More importantly, the protective effects of G-Rh4 on alloxan-induced upregulation of Nrf2 target gene and insulin secretion were abolished by Nrf2 knockdown. Finally, we explored the mechanism of G-Rh4 associated with Nrf2 activation and found that the Akt deficiency inhibited G-Rh4-mediated Nrf2 nuclear translocation. Altogether, we present evidence that G-Rh4 increased expression of Nrf2 and results in increased antioxidant gene, as well as a rise in insulin secretion in vivo and in vitro. Exploiting the Nrf2 pathway may show great potential as a therapeutic strategy to improve pancreatic β-cells dysfunction in the diabetic population.
abstractGer	The aim of this study is to investigate the hypoglycemic mechanism of ginsenoside Rh4 (G-Rh4) in vivo and in vitro models. Our results showed that G-Rh4 markedly improved the symptoms of diabetes, normalized glucose metabolism, and promoted insulin secretion which contributed to attenuate symptoms of hyperglycemia in high-fat diet/streptozocin induced type 2 diabetes mellitus mice. This positive effect was associated with increased expression of Nrf2 by G-Rh4. Further results demonstrated that G-Rh4 promoted Nrf2 nucleus translocation as well as up-regulated the expression of HO-1, NQO1 and GCLC. Furthermore, we also found that G-Rh4 increased insulin secretion by activating the signal pathway of PDX-1, GLUT2 and GCK. More importantly, the protective effects of G-Rh4 on alloxan-induced upregulation of Nrf2 target gene and insulin secretion were abolished by Nrf2 knockdown. Finally, we explored the mechanism of G-Rh4 associated with Nrf2 activation and found that the Akt deficiency inhibited G-Rh4-mediated Nrf2 nuclear translocation. Altogether, we present evidence that G-Rh4 increased expression of Nrf2 and results in increased antioxidant gene, as well as a rise in insulin secretion in vivo and in vitro. Exploiting the Nrf2 pathway may show great potential as a therapeutic strategy to improve pancreatic β-cells dysfunction in the diabetic population.
abstract_unstemmed	The aim of this study is to investigate the hypoglycemic mechanism of ginsenoside Rh4 (G-Rh4) in vivo and in vitro models. Our results showed that G-Rh4 markedly improved the symptoms of diabetes, normalized glucose metabolism, and promoted insulin secretion which contributed to attenuate symptoms of hyperglycemia in high-fat diet/streptozocin induced type 2 diabetes mellitus mice. This positive effect was associated with increased expression of Nrf2 by G-Rh4. Further results demonstrated that G-Rh4 promoted Nrf2 nucleus translocation as well as up-regulated the expression of HO-1, NQO1 and GCLC. Furthermore, we also found that G-Rh4 increased insulin secretion by activating the signal pathway of PDX-1, GLUT2 and GCK. More importantly, the protective effects of G-Rh4 on alloxan-induced upregulation of Nrf2 target gene and insulin secretion were abolished by Nrf2 knockdown. Finally, we explored the mechanism of G-Rh4 associated with Nrf2 activation and found that the Akt deficiency inhibited G-Rh4-mediated Nrf2 nuclear translocation. Altogether, we present evidence that G-Rh4 increased expression of Nrf2 and results in increased antioxidant gene, as well as a rise in insulin secretion in vivo and in vitro. Exploiting the Nrf2 pathway may show great potential as a therapeutic strategy to improve pancreatic β-cells dysfunction in the diabetic population.
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title_short	G-Rh4 improves pancreatic β-cells dysfunction
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up_date	2024-07-06T17:56:27.769Z
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