scholarly journals HPTLC Fingerprint Profile and Identification of Antidiabetic and Antioxidant Leads from Bauhinia rufescens L

2020 ◽  
Vol 2020 ◽  
pp. 1-18
Author(s):  
Wadah Osman ◽  
Mona S Mohammed ◽  
Hassan S Khalid ◽  
Abdelkhalig Muddathir ◽  
Shaza W. Shantier ◽  
...  

Diabetes is one of the world’s major health problems, and many reports have supported the role of oxidative stress in the pathogenesis of both type 1 and type 2 diabetes. The present study aims to evaluate the antidiabetic and antioxidant activity of Bauhinia rufescens, a plant used in Sudanese folkloric medicine for the treatment of diabetes. It was also aimed to identify isolates and characterize the bioactive antidiabetic and antioxidant compounds using bioactivity-guided fractionation followed by high-performance thin-layer chromatography (HPTLC) autobiography, liquid chromatography-mass spectrometric analysis, and nuclear magnetic resonance (NMR). Two potential compounds were successfully isolated and identified which may provide new leads for more potent analogues in drug discovery.

2011 ◽  
Vol 57 (4) ◽  
pp. 56-60
Author(s):  
T V Nikonova

Insulin therapy, a corner stone of the treatment of diabetes mellitus, both type 1 and type 2, has undergone substantial modification since the manufacture of the first insulin preparations 90 years ago up to the present time. Human insulins, such as neutral protamin Hagedorn (NPH) insulins, remain a major instrument of therapy of diabetes mellitus despite rapid developments in this field of knowledge and the wide availability of insulin analogs. When prescribing these preparations, the attending physician should be absolutely confident that the patient has a minimum background of knowledge and skills indispensable for efficacious and safe treatment. Such skills include the habit of mixing NPH insulin suspensions by 20-fold turning the vial or the cartridge upside-down or rolling them between the palms in order to ensure the uniform distribution of insulin in the suspension and its accurate dosing. The manufactures place from one to three glass or metal bullets inside the vials and cartridges for more homogeneous mixing of their contents. P. Kaiser et al. undertook the study of several pharmaceutical forms of NPH insulin manufactured by different companies to estimate the accuracy of dosing (variability of the insulin dose depending on the number of turns of the cartridge for homogeneous mixing). The insulin concentration in a single dose was measured by high-performance liquid chromatography. Marked variability of the insulin dose after less than ten (three or six) turns was documented for all cartridges with the exception of Insuman Basal insulin cartridges ("Sanofi"). It may be expected that the accuracy of dosing will not deteriorate using these cartridges owing to the presence in them of three heavy metal bullets even if the patient does not perform the necessary mixing procedure for one or another reason.


2019 ◽  
Vol 19 (6) ◽  
pp. 744-753 ◽  
Author(s):  
Sara M. Ahmed ◽  
Dina Johar ◽  
Mohamed Medhat Ali ◽  
Nagwa El-Badri

Background: Diabetes mellitus is a metabolic disorder that is characterized by impaired glucose tolerance resulting from defects in insulin secretion, insulin action, or both. Epigenetic modifications, which are defined as inherited changes in gene expression that occur without changes in gene sequence, are involved in the etiology of diabetes. Methods: In this review, we focused on the role of DNA methylation and protein misfolding and their contribution to the development of both type 1 and type 2 diabetes mellitus. Results: Changes in DNA methylation in particular are highly associated with the development of diabetes. Protein function is dependent on their proper folding in the endoplasmic reticulum. Defective protein folding and consequently their functions have also been reported to play a role. Early treatment of diabetes has proven to be of great benefit, as even transient hyperglycemia may lead to pathological effects and complications later on. This has been explained by the theory of the development of a metabolic memory in diabetes. The basis for this metabolic memory was attributed to oxidative stress, chronic inflammation, non-enzymatic glycation of proteins and importantly, epigenetic changes. This highlights the importance of linking new therapeutics targeting epigenetic mechanisms with traditional antidiabetic drugs. Conclusion: Although new data is evolving on the relation between DNA methylation, protein misfolding, and the etiology of diabetes, more studies are required for developing new relevant diagnostics and therapeutics.


2013 ◽  
Vol 2013 ◽  
pp. 1-10 ◽  
Author(s):  
Xiaohan Xu ◽  
Leilei Guo ◽  
Guoqing Tian

The problem of cognitive impairment resulting from diabetes is gaining more acceptance and attention. Both type 1 and type 2 diabetes mellitus have been proved to be associated with reduced performance on numerous domains of cognitive function. Although the exact mechanisms of cognitive impairments in diabetes have not been completely understood, hyperglycemia and insulin resistance seem to play significant roles. And other possible risk factors such as hypoglycemia, insulin deficiency, vascular risk factors, hyperactive HPA axis, depression, and altered neurotransmitters will also be examined. In the meanwhile, this review analyzed the role of the active ingredient of Chinese herbal medicine in the treatment of diabetes cognitive impairments.


Endocrinology ◽  
2011 ◽  
Vol 152 (7) ◽  
pp. 2580-2588 ◽  
Author(s):  
Noèlia Téllez ◽  
Géraldine Joanny ◽  
Jéssica Escoriza ◽  
Marina Vilaseca ◽  
Eduard Montanya

β-Cell mass reduction is a central aspect in the development of type 1 and type 2 diabetes, and substitution or regeneration of the lost β-cells is a potentially curative treatment of diabetes. To study the effects of gastrin on β-cell mass in rats with 95% pancreatectomy (95%-Px), a model of pancreatic regeneration, rats underwent 95% Px or sham Px and were treated with [15 leu] gastrin-17 (Px+G and S+G) or vehicle (Px+V and S+V) for 15 d. In 95% Px rats, gastrin treatment reduced hyperglycemia (280 ± 52 mg vs. 436 ± 51 mg/dl, P < 0.05), and increased β-cell mass (1.15 ± 0.15 mg)) compared with vehicle-treated rats (0.67 ± 0.15 mg, P < 0.05). Gastrin treatment induced β-cell regeneration by enhancing β-cell neogenesis (increased number of extraislet β-cells in Px+G: 0.42 ± 0.05 cells/mm2vs. Px+V: 0.27 ± 0.07 cells/mm2, P < 0.05, and pancreatic and duodenal homeobox 1 expression in ductal cells of Px+G: 1.21 ± 0.38% vs. Px+V: 0.23 ± 0.10%, P < 0.05) and replication (Px+G: 1.65 ± 0.26% vs. S+V: 0.64 ± 0.14%; P < 0.05). In addition, reduced β-cell apoptosis contributed to the increased β-cell mass in gastrin-treated rats (Px+G: 0.07 ± 0.02%, Px+V: 0.23 ± 0.05%; P < 0.05). Gastrin action on β-cell regeneration and survival increased β-cell mass and improved glucose tolerance in 95% Px rats, supporting a potential role of gastrin in the treatment of diabetes.


Nutrients ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 1460
Author(s):  
Kalliopi Karatzi ◽  
Yannis Manios

Type 2 diabetes (T2DM) and hypertension are major health problems, with an undisputed growth burden in the past decades [...]


2021 ◽  
Vol 22 (8) ◽  
pp. 4020
Author(s):  
Enrique Antonio Alfonso-Muñoz ◽  
Raquel Burggraaf-Sánchez de las Matas ◽  
Jorge Mataix Boronat ◽  
Julio César Molina Martín ◽  
Carmen Desco

Oxidative stress has been postulated as an underlying pathophysiologic mechanism of diabetic retinopathy (DR), the main cause of avoidable blindness in working-aged people. This review addressed the current daily clinical practice of DR and the role of antioxidants in this practice. A systematic review of the studies on antioxidant supplementation in DR patients was presented. Fifteen studies accomplished the inclusion criteria. The analysis of these studies concluded that antioxidant supplementation has a IIB level of recommendation in adult Type 1 and Type 2 diabetes mellitus subjects without retinopathy or mild-to-moderate nonproliferative DR without diabetic macular oedema as a complementary therapy together with standard medical care.


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