scholarly journals Bioactive Agent Discovery from the Natural Compounds for the Treatment of Type 2 Diabetes Rat Model

Molecules ◽  
2020 ◽  
Vol 25 (23) ◽  
pp. 5713
Author(s):  
Shih-Chun Yang ◽  
Ching-Yun Hsu ◽  
Wei-Ling Chou ◽  
Jia-You Fang ◽  
Shih-Yi Chuang
Keyword(s):  
Diabetes Mellitus ◽  
Type 2 Diabetes ◽  
Side Effects ◽  
Therapeutic Potential ◽  
Genetic Manipulation ◽  
Active Components ◽  
Rat Models ◽  
Organ Systems ◽  
Wide Range

Diabetes mellitus is a well-known chronic metabolic disease that poses a long-term threat to human health and is characterized by a relative or absolute lack of insulin, resulting in hyperglycemia. Type 2 diabetes mellitus (T2DM) typically affects many metabolic pathways, resulting in β-cell dysfunction, insulin resistance, abnormal blood glucose levels, inflammatory processes, excessive oxidative reactions, and impaired lipid metabolism. It also leads to diabetes-related complications in many organ systems. Antidiabetic drugs have been approved for the treatment of hyperglycemia in T2DM; these are beneficial for glucose metabolism and promote weight loss, but have the risk of side effects, such as nausea or an upset stomach. A wide range of active components, derived from medicinal plants, such as alkaloids, flavonoids, polyphenol, quinones, and terpenoids may act as alternative sources of antidiabetic agents. They are usually attributed to improvements in pancreatic function by increasing insulin secretions or by reducing the intestinal absorption of glucose. Ease of availability, low cost, least undesirable side effects, and powerful pharmacological actions make plant-based preparations the key player of all available treatments. Based on the study of therapeutic reagents in the pathogenesis of humans, we use the appropriate animal models of T2DM to evaluate medicinal plant treatments. Many of the rat models have characteristics similar to those in humans and have the advantages of ease of genetic manipulation, a short breeding span, and access to physiological and invasive testing. In this review, we summarize the pathophysiological status of T2DM rat models and focus on several bioactive compounds from herbal medicine with different functional groups that exhibit therapeutic potential in the T2DM rat models, in turn, may guide future approach in treating diabetes with natural drugs.

scholarly journals Investigation on the Enzymatic Profile of Mulberry Alkaloids by Enzymatic Study and Molecular Docking

Molecules ◽  
2019 ◽  
Vol 24 (9) ◽  
pp. 1776 ◽  
Author(s):  
Zhihua Liu ◽  
Ying Yang ◽  
Wujun Dong ◽  
Quan Liu ◽  
Renyun Wang ◽  
...  
Keyword(s):  
Diabetes Mellitus ◽  
Type 2 Diabetes ◽  
Type 2 Diabetes Mellitus ◽  
Molecular Docking ◽  
Side Effects ◽  
Inhibitory Effect ◽  
Active Ingredients ◽  
Wide Range ◽  
Consensus Score

α-glucosidase inhibitors (AGIs) have been an important category of oral antidiabetic drugs being widely exploited for the effective management of type 2 diabetes mellitus. However, the marketed AGIs not only inhibited the disaccharidases, but also exhibited an excessive inhibitory effect on α-amylase, resulting in undesirable gastrointestinal side effects. Compared to these agents, Ramulus Mori alkaloids (SZ-A), was a group of effective alkaloids from natural Morus alba L., and showed excellent hypoglycemic effect and fewer side effects in the Phase II/III clinical trials. Thus, this paper aims to investigate the selective inhibitory effect and mechanism of SZ-A and its major active ingredients (1-DNJ, FA and DAB) on different α-glucosidases (α-amylase and disaccharidases) by using a combination of kinetic analysis and molecular docking approaches. From the results, SZ-A displayed a strong inhibitory effect on maltase and sucrase with an IC50 of 0.06 μg/mL and 0.03 μg/mL, respectively, which was similar to the positive control of acarbose with an IC50 of 0.07 μg/mL and 0.68 μg/mL. With regard to α-amylase, SZ-A exhibited no inhibitory activity at 100 μg/mL, while acarbose showed an obvious inhibitory effect with an IC50 of 1.74 μg/mL. The above analysis demonstrated that SZ-A could selectively inhibit disaccharidase to reduce hyperglycemia with a reversible competitive inhibition, which was primarily attributed to the three major active ingredients of SZ-A, especially 1-DNJ molecule. In the light of these findings, molecular docking study was utilized to analyze their inhibition mechanisms at molecular level. It pointed out that acarbose with a four-ring structure could perform desirable interactions with various α-glucosidases, while the three active ingredients of SZ-A, belonging to monocyclic compounds, had a high affinity to the active site of disaccharidases through forming a wide range of hydrogen bonds, whose affinity and consensus score with α-amylase was significantly lower than that of acarbose. Our study illustrates the selective inhibition mechanism of SZ-A on α-glucosidase for the first time, which is of great importance for the treatment of type 2 diabetes mellitus.

scholarly journals Prospects for application of phytopreparations in the complex treatment of type 2 diabetes mellitus

2021 ◽  
pp. 18-22
Author(s):  
Viktoria Rybak ◽  
Lyudmila Maloshtan ◽  
Victoria Korol
Keyword(s):  
Diabetes Mellitus ◽  
Type 2 Diabetes ◽  
Type 2 Diabetes Mellitus ◽  
Side Effects ◽  
Herbal Medicine ◽  
Medicinal Plants ◽  
Complex Treatment ◽  
Practical Medicine ◽  
Wide Range

Diabetes mellitus (DM) occupies an important place in the structure of mortality, as well as among the causes of disability and deterioration in the quality of life of the population. In this regard, the study of phytopreparations is promising for practical medicine in order to identify new medicinal plants that actively affect metabolic processes to prevent complications of DM, and create new phytopreparations. That drugs could enhance the effect of sulfonamides and potentiate the effect of insulin, thereby reducing the dose of the latter, and it is important for long-term chronic diseases, such as DM. The aim. To study the prospects for the use of phytopreparations in the complex treatment of type 2 diabetes mellitus. Materials and methods. The analytical, logical, generalization methods were used in the work. The analytical method of the study involved deepening the search for phytopreparations and the prospects for their use in the complex treatment of type 2 diabetes mellitus and generalization of the data obtained. The logical method of exploratory research of promising phytopreparations was applied in a certain logical sequence, as a result of which the specificity, stage-by-stage and generalization of the relevance of the use of phytopreparations in the complex treatment of type 2 diabetes mellitus was provided for scientific research. The generalizing research method was to determine and prove the characteristics of phytopreparations (analysis and synthesis) and their advantages over synthetic drugs. Results and discussion. The main directions of herbal medicine for DM are associated with reproduction of the effects of insulin, normalization of glucose uptake, stimulation of regeneration of β-cells of the Langerhans islets, elimination of excess glucose from the body – phytopreparations with diuretic properties; elimination of hypoxia – phytopreparations-antihypoxants. In DM, herbal medicine will reduce the frequency of side effects in classical antidiabetic therapy. For any type of diabetes, herbal medicine is prescribed to patients as an improvement in the microcirculation of tissues, normalization of the functions of the cardiovascular and nervous systems, kidneys and eyes. Conclusions. Despite a wide range of drugs used to correct the hemodynamic and metabolic manifestations of the insulin resistance syndrome, they do not fully meet the needs of practical medicine due to the presence of pronounced side effects. In addition, the pharmaceutical market of herbal medicines is very limited and represented mainly by species of medicinal plants, which have certain inconveniences in their use. All this indicates the relevance of the search, creation and introduction of effective and, at the same time, low-toxic drugs based on the medicinal plant raw material into medical practice for the pharmacotherapy of type 2 diabetes and its complications

Abstract 234: Treatment Satisfaction Levels among Adults with Concomitant Conditions of Type 2 Diabetes Mellitus and Hypertension

2012 ◽  
Vol 5 (suppl_1) ◽  
Author(s):  
Kathleen M Fox ◽  
Susan Grandy ◽  
Keyword(s):  
Diabetes Mellitus ◽  
Type 2 Diabetes ◽  
Type 2 Diabetes Mellitus ◽  
Heart Disease ◽  
Side Effects ◽  
Diabetes Medication ◽  
Medication Therapy ◽  
The Us ◽  
Medication Side

Objective: This investigation evaluated the satisfaction with therapy for adults with the concomitant conditions of type 2 diabetes mellitus (T2DM) and hypertension (HTN). Methods: Respondents to the US S tudy to H elp I mprove E arly evaluation and management of risk factors L eading to D iabetes (SHIELD) 2009 survey reported their disease conditions, current medications, and satisfaction with therapy. Respondents reporting T2DM with concomitant HTN were identified. Current medications were catalogued, as respondents referred to their prescription bottles to record the name of each medication. Therapy satisfaction was captured with 3 separate questions as satisfaction/dissatisfaction with: 1) ability of the medication to prevent or treat your condition, 2) side effects of the medication, and 3) the medication overall; and scored using a 0 (completely dissatisfied) to 5 (completely satisfied) scale for heart disease treatment and diabetes treatment, separately. Scores of 0-2 were categorized as dissatisfied, score of 3 was neutral and scores 4-5 were satisfied. Results: A total of 911 adults with T2DM and HTN reported their satisfaction with therapy. For those who were dissatisfied with their diabetes medication (n = 63), 52.6% were also dissatisfied with their heart disease medication's ability to treat their HTN, 64.5% were dissatisfied with the side effects of their heart medications, and 61.9% were dissatisfied with their heart medication overall. For those who were dissatisfied with their heart disease medication (n = 59), 74.5% were also dissatisfied with their diabetes medication's ability to treat their diabetes, 56.6% were dissatisfied with the side effects of their diabetes medication, and 66.1% were dissatisfied with their diabetes medication overall. Conclusions: Although most respondents with T2DM and HTN were satisfied with their treatment, dissatisfaction with treatment for one condition was associated with therapy dissatisfaction in the other condition. Approximately 53%-65% of respondents who were dissatisfied with their diabetes medication were also dissatisfied with their HTN medication overall and in the ability to treat the condition and medication side effects.

scholarly journals Oxidative stress in patients with type 2 diabetes mellitus treated with metformin

2017 ◽  
Vol 27 (2) ◽  
pp. 25857
Author(s):  
Samuel Selbach Dries ◽  
Bárbara Da Silveira Soares ◽  
Ana Luiza Ziulkoski ◽  
Simone Gasparin Verza ◽  
Rafael Linden ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Diabetes Mellitus ◽  
Type 2 Diabetes ◽  
Superoxide Dismutase ◽  
Type 2 Diabetes Mellitus ◽  
Blood Glucose ◽  
Side Effects ◽  
Diabetic Complications

*** Oxidative stress in patients with type 2 diabetes mellitus treated with metformin ***AIMS: To evaluate oxidative stress parameters in patients with type 2 diabetes mellitus treated with metformin, relating these values to its side effects, plasma levels, glycemic control, diabetic complications, lipid profile, and the influence of pharmacotherapeutic follow-up.METHODS: Patients with type 2 diabetes mellitus, on metformin and in pharmacotherapeutic follow-up for four months, were evaluated. The pharmacotherapeutic follow-up consisted in providing information and answering patients’ questions about medication and disease. In addition, administration times, dosages, and presence or absence of side effects related to the use of metformin were verified. Glycemic and lipid profile, oxidative stress (superoxide dismutase and malondialdehyde) and plasma metformin were evaluated. Pearson’s correlation and Spearman’s correlation were performed to evaluate the relationship between the variables at the beginning of the study. The independent t-test and Mann-Whitney U test were used to assess the difference between the groups with and without diabetic complications. The range of values between the beginning and  end of the study was evaluated using Student’s t-test or Wilcoxon U test. The significance level was set at 5%.RESULTS: The initial sample consisted of 49 patients aged 59±9 years with a body mass index of 29.8±5.1 kg/m2, who have had diabetes for a median time of 36 months (interquartile range of 1-240) and have been on metformin for a median time of 36 months (interquartile range of 1-180). Twenty-five patients left the study between the second and fourth meetings. Malondialdehyde levels differed between before and after pharmacotherapeutic follow-up, being positively correlated with blood glucose, glycohemoglobin, and triglyceride level, and negatively correlated with metformin and superoxide dismutase. Blood glucose, glycohemoglobin, and malondialdehyde levels increased, whereas metformin levels decreased in the group with diabetic complications, and there was a correlation between malondialdehyde and the number of diabetic complications per patient.CONCLUSIONS: In this sample of patients with type 2 diabetes mellitus treated with metformin, oxidative stress was more pronounced in those with poor glycemic control and diabetic complications.

Hepatic Insulin-Positive Cells and Major Transcription Factors (PDX1, MAFA, NGN3) in Rat Models of Type 1 and Type 2 Diabetes Mellitus

2021 ◽  
Vol 57 (4) ◽  
pp. 772-781
Author(s):  
M. B. Baikenova ◽  
V. A. Chereshnev ◽  
K. V. Sokolova ◽  
I. F. Gette ◽  
V. V. Emelyanov ◽  
...  
Keyword(s):  
Diabetes Mellitus ◽  
Type 2 Diabetes ◽  
Type 2 Diabetes Mellitus ◽  
Transcription Factors ◽  
Rat Models

scholarly journals The impact of dietary protein restriction on insulin secretion and action

1999 ◽  
Vol 58 (3) ◽  
pp. 647-653 ◽  
Author(s):  
Mark J. Holness
Keyword(s):  
Diabetes Mellitus ◽  
Type 2 Diabetes ◽  
Insulin Secretion ◽  
Insulin Action ◽  
Synergistic Effects ◽  
Protein Restriction ◽  
Dependent Diabetes Mellitus ◽  
Organ Systems ◽  
The Impact

The goal of this review is to develop the hypothesis, and review the evidence, that protein restriction, through synergistic effects on multiple organ systems predisposes to loss of normal regulation of fuel homeostasis that plays the central role in the development of type 2 (non-insulin-dependent) diabetes mellitus. The ability of insulin to regulate glucose production and disposal varies between individuals. These differences, together with the various compensatory mechanisms that are invoked to attempt to normalize fuel homeostasis, are of fundamental importance in the development and clinical course of type 2 diabetes mellitus. Protein deprivation impacts on both insulin secretion and insulin action. These effects may persist even when a diet containing adequate protein is presented subsequently. Data are presented that suggest that protein restriction results in an impaired ability of pancreatic β-cells to compensate adequately for the defect in insulin action in insulin-resistant individuals. This persistent impairment of insulin secretion resulting from protein restriction predisposes to loss of glucoregulatory control and impaired insulin action after the subsequent imposition of a diabetogenic challenge. This inability to maintain the degree of compensatory hyperinsulinaemia necessary to prevent loss of glucose tolerance may have relevance to the increased incidence of diabetes on changing from a nutritionally-poor diet to a Western diet, and to the hypothesis that some cases of type 2 diabetes in adulthood may be related to poor early nutrition.

Rat Models for Bariatric Surgery and Surgery for Type 2 Diabetes Mellitus

2009 ◽  
Vol 19 (5) ◽  
pp. 655-660 ◽  
Author(s):  
Sheetal Bharat Mistry ◽  
Juan J. Omana ◽  
Subhash Kini
Keyword(s):  
Diabetes Mellitus ◽  
Type 2 Diabetes ◽  
Bariatric Surgery ◽  
Type 2 Diabetes Mellitus ◽  
Rat Models
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