scholarly journals Influence of Diallyl disulphide on Hepatic Gluconeogenesis suppression by CREB Binding protein phosphorylation

2019 ◽  
Vol 10 (2) ◽  
pp. 1327-1331 ◽  
Author(s):  
Prashanthkumar Goudappala ◽  
Ethirajan Sukumar ◽  
Kashinath RT
Keyword(s):  
Liver Tissue ◽  
Binding Protein ◽  
Liver Weight ◽  
Wistar Rat ◽  
Diabetic Rats ◽  
The Body ◽  
Diallyl Disulfide ◽  
Creb Binding Protein ◽  
Creb Protein ◽  
Diabetic Status

Diabetes is an important human ailment affecting many lives in different countries. Diallyl disulfide (DADS), the antidiabetic compound found in garlic, acts as a therapeutic agent in diabetes mellitus condition. This research aimed to investigate the role of DADS on the gluconeogenic mechanism in the liver tissue and the potential involvement of CREB in glucose homeostasis in a Wistar rat model. The alteration in the body weight, liver weight and glycogen content in diabetic rats were prevented by this therapeutic compound: the cAMP-responsive element-binding protein (CREB), an important transcriptional regulator of the gluconeogenic mechanism. The glucose uptake potential was studied by the expression of CREB protein in DADS treated diabetic rats using the western blotting technique. A high level of hepatic CREB protein expression was noted in diabetic status in the chronic hyperglycemic model which was reversed by DADS. The antihyperglycemic effect of DADS was almost similar to that of known antidiabetic drug metformin. The therapeutic action of DADS on diabetic status is due to the control of the glycemic imbalance in liver tissue.

CREB-binding protein (CREBBP) and preeclampsia: a new promising target gene

2021 ◽  
Vol 48 (3) ◽  
pp. 2117-2122
Author(s):  
Hossein Sadeghi ◽  
Sahra Esmkhani ◽  
Reihaneh Pirjani ◽  
Mona Amin-Beidokhti ◽  
Milad Gholami ◽  
...  
Keyword(s):  
Target Gene ◽  
Binding Protein ◽  
Creb Binding Protein ◽  
Promising Target

scholarly journals Hypoglycemic and antioxidative activities of ethanol seed extract of Hunteria umbellate (Hallier F.) on streptozotocin-induced diabetic rats

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Olubanke O. Ogunlana ◽  
Babatunde O. Adetuyi ◽  
Miracle Rotimi ◽  
lohor Esalomi ◽  
Alaba Adeyemi ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Blood Glucose ◽  
Blood Glucose Level ◽  
Glucose Level ◽  
Fasting Blood Glucose ◽  
Diabetic Rats ◽  
Seed Extract ◽  
The Body ◽  
High Concentration ◽  
Group 5

Abstract Background Diabetes, a global cause of mortality in developing countries is a chronic disorder affecting the metabolism of macromolecules and has been attributed to the defective production and action of insulin characterized by persistent hyperglycemic properties. This global disorder harms organs of the body such as the liver, kidney and spleen. Medicinal plants such as Hunteria umbellate have been shown to possess hypoglycemic, antioxidative and anti-diabetic properties owing to the high concentration of active phytochemical constituents like flavonoids and alkaloids. The present study seeks to evaluate the hypoglycemic activities of ethanolic seed extract of Hunteria umbellate on streptozotocin-induced diabetes rats. Methods Thirty (30) female experimental rats were randomly divided into five groups with six rats per group and were administered streptozotocin (STZ) and Hunteria umbellate as follows. Group 1 served as control and was given only distilled water, group 2 rats were administered 60 mg/kg STZ; Group 3 was administered 60 mg/kg STZ and 100 mg/kg metformin; group 4 rats were administered 60 mg/kg STZ and 800 mg/kg Hunteria umbellate, group 5 rats 60 mg/kg STZ and 400 mg/kg Hunteria umbellate. The fasting blood glucose level of each rat was measured before sacrifice. Rats were then sacrificed 24 h after the last dose of treatment. Results The results showed that Hunteria umbellate significantly reversed STZ-induced increase in fasting blood glucose and increase in body and organs weight of rats. Hunteria umbellate significantly reversed STZ-induced decrease in antioxidant enzyme in liver, kidney and spleen of rats. Hunteria umbellate significantly reversed STZ-induced increase in oxidative stress markers in liver, kidney and spleen of rats. Conclusion Collectively, our results provide convincing information that inhibition of oxidative stress and regulation of blood glucose level are major mechanisms through which Hunteria umbellate protects against streptozotocin-induced diabketes rats.

scholarly journals p300/cAMP-response-element-binding-protein ('CREB')-binding protein (CBP) modulates co-operation between myocyte enhancer factor 2A (MEF2A) and thyroid hormone receptor-retinoid X receptor

2003 ◽  
Vol 369 (3) ◽  
pp. 477-484 ◽  
Author(s):  
Antonio De LUCA ◽  
Anna SEVERINO ◽  
Paola De PAOLIS ◽  
Giuliano COTTONE ◽  
Luca De LUCA ◽  
...  
Keyword(s):  
Thyroid Hormone ◽  
Binding Protein ◽  
Camp Response Element Binding ◽  
Creb Binding Protein ◽  
Camp Response Element ◽  
Response Element ◽  
Adenovirus E1a ◽  
Element Binding Protein ◽  
Enhancer Factor

Thyroid hormone receptors (TRs) and members of the myocyte enhancer factor 2 (MEF2) family are involved in the regulation of muscle-specific gene expression during myogenesis. Physical interaction between these two factors is required to synergistically activate gene transcription. p300/cAMP-response-element-binding-protein ('CREB')-binding protein (CBP) interacting with transcription factors is able to increase their activity on target gene promoters. We investigated the role of p300 in regulating the TR—MEF2A complex. To this end, we mapped the regions of these proteins involved in physical interactions and we evaluated the expression of a chloramphenicol acetyltransferase (CAT) reporter gene in U2OS cells under control of the α-myosin heavy chain promoter containing the thyroid hormone response element (TRE). Our results suggested a role of p300/CBP in mediating the transactivation effects of the TR—retenoid X receptor (RxR)—MEF2A complex. Our findings showed that the same C-terminal portion of p300 binds the N-terminal domains of both TR and MEF2A, and our in vivo studies demonstrated that TR, MEF2A and p300 form a ternary complex. Moreover, by the use of CAT assays, we demonstrated that adenovirus E1A inhibits activation of transcription by TR—RxR—MEF2A—p300 but not by TR—RxR—MEF2A. Our data suggested that p300 can bind and modulate the activity of TR—RxR—MEF2A at TRE. In addition, it is speculated that p300 might modulate the activity of the TR—RxR—MEF2A complex by recruiting a hypothetical endogenous inhibitor which may act like adenovirus E1A.

scholarly journals The CREB-binding protein affects the circadian regulation of behaviour

FEBS Letters ◽  
2016 ◽  
Vol 590 (18) ◽  
pp. 3213-3220 ◽  
Author(s):  
Christian Maurer ◽  
Tobias Winter ◽  
Siwei Chen ◽  
Hsiu-Cheng Hung ◽  
Frank Weber
Keyword(s):  
Binding Protein ◽  
Circadian Regulation ◽  
Creb Binding Protein

scholarly journals Acetylation of cAMP-responsive Element-binding Protein (CREB) by CREB-binding Protein Enhances CREB-dependent Transcription

2003 ◽  
Vol 278 (18) ◽  
pp. 15727-15734 ◽  
Author(s):  
Qing Lu ◽  
Amanda E. Hutchins ◽  
Colleen M. Doyle ◽  
James R. Lundblad ◽  
Roland P. S. Kwok
Keyword(s):  
Binding Protein ◽  
Creb Binding Protein ◽  
Element Binding Protein ◽  
Responsive Element ◽  
Camp Responsive Element Binding
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