Antidiabetic Activity of Extract and Compounds from an Endophytic Fungus Nigrospora oryzae

Drug Research ◽  
2017 ◽  
Vol 67 (05) ◽  
pp. 308-311 ◽  
Author(s):  
Philip F. Uzor ◽  
Patience O. Osadebe ◽  
Ngozi J. Nwodo
Keyword(s):  
Abscisic Acid ◽  
Blood Sugar ◽  
Endophytic Fungi ◽  
Endophytic Fungus ◽  
Fasting Blood Sugar ◽  
Antidiabetic Activity ◽  
Diabetic Mice ◽  
Alternative Source ◽  
Fungal Extract ◽  
Nigrospora Oryzae

AbstractThe fungal extract as well as the 3 biosynthetic compounds, (S)-(+)-2-cis-4-trans-abscisic acid (1), , 7'-hydroxy-abscisic acid (2) and 4-des-hydroxyl altersolanol A (3) from the endophytic fungus, Nigrospora oryzae, isolated from Combretum dolichopetalum leaf were investigated for their antidiabetic potential.The antidiabetic activity was determined in alloxan-induced diabetic mice by monitoring their fasting blood sugar for 9 h.The extract and the compounds (1–3) significantly (p<0.001) reduced the fasting blood sugar of the diabetic mice.The present study has shown that the biosynthetic products of the endophytic fungus, N. oryzae, exhibited strong antidiabetic activity. It has further shown that endophytic fungi could be an alternative source of novel compounds for management of diabetes.

scholarly journals Exploration of Antidiabetic Activity of Stephania japonica Leaf Extract in Alloxan-Induced Swiss Albino Diabetic Mice

2019 ◽  
pp. 1-12
Author(s):  
Md. Dobirul Islam ◽  
Syeda Farida Akter ◽  
Md. Amirul Islam ◽  
Md. Salim Uddin
Keyword(s):  
Gallic Acid ◽  
Ethanol Extract ◽  
Antidiabetic Activity ◽  
Diabetic Mice ◽  
Mice Model ◽  
Leaf Extracts ◽  
Alternative Source ◽  
Dry Extract

Aims: Presently the medicinal world is rapidly turning more on the therapeutic health benefits of natural product and medicinal plants in the management of major crucial disease and their complications. Medicinal plant, Stephania japonica has been studied for exploring antidiabetic potentiality as an alternative source of medicine against the global threat of Diabetes mellitus (DM). Methods: The extraction of S. japonica leaf was carried out by acetone and ethanol. Phytochemical screening and quantitative analysis of S. japonica leaf extracts were evaluated through chemically forming characterized color formation and calibration method respectively, by using standard reference substances (ascorbic acid, gallic acid, and quercetin) to assess the probable compounds present in the extract. Anti-diabetic potentiality of highest phytochemicals containing two extracts were investigated in in vitro as a ⍺-amylase inhibitors and in vivo through alloxan-induced Swiss albino diabetes mice model. Results: Alkaloids, carbohydrates, steroids, flavonoids, resins, saponins, tannins and coumarins were present in the leaf extracts. The estimated amount of total phenolics, flavonoids, flavonols and proanthrocyanidins contents of acetone and ethanol extract were 92.12±0.64 and 56.54±1.05 mg of gallic acid equivalent (GAE)/gm of dry extract, 66.02±1.42 and 46.17±0.54 mg of catechin equivalent (CAE)/gm of dry extract, 7.05±0.108 and 5.26±0.083 mg of quercetin equivalent (QUE)/gm of dry extract, 35.19±0.67 and 9.55±1.11 mg CAE/gm of dry extract, respectively. In 3, 5-dinitrosalicylic acid method, acetone and ethanol extract showed α-amylase inhibition of 51.02% and 46.62%, respectively at the concentration of 1000 µg/mL whereas in starch iodine color assay, acetone and ethanol extract showed inhibition of 57.32% and 52.12%, respectively at the concentration of 800 µg/mL. In contrast, both of the leaf extracts significantly (p<0.05 to p<0.001) improved the lipid profile parameters, blood glucose level and serum hepatic marker proteins in alloxan-induced diabetic mice. Conclusion: The present study strongly concluded that S. japonica leaf extracts process potent antidiabetic potentiality that might be significance for the management of diabetes and its complications.

Biochemical insights into the recombinant 10-deacetylbaccatin III-10-β-O-acetyltransferase enzyme from the Taxol-producing endophytic fungus Lasiodiplodia theobromae

2019 ◽  
Vol 366 (7) ◽  
Author(s):  
Balendra Sah ◽  
Kamalraj Subban ◽  
Chelliah Jayabaskaran
Keyword(s):  
Endophytic Fungi ◽  
Endophytic Fungus ◽  
Biosynthetic Pathway ◽  
Gel Filtration ◽  
Alternative Source ◽  
Lasiodiplodia Theobromae ◽  
Reading Frame ◽  
Baccatin Iii ◽  
Feasible Alternative ◽  
Near Future

ABSTRACT 10-deacetylbaccatin III-10-β-O-acetyltransferase (DBAT) is a key rate-limiting enzyme of the Taxol biosynthetic pathway, which is uncharacterized in Taxol-producing endophytic fungi. Here, an open reading frame of DBAT was cloned from the Taxol-producing endophytic fungus Lasiodiplodia theobromae (LtDBAT). The LtDBAT enzyme was heterologously expressed and purified by the affinity and gel filtration chromatography methods. The molecular weight of the purified protein was 49 kDa and its identity was confirmed by western blot. The purified LtDBAT enzyme was capable of catalyzing 10-deacetylbaccatin III into baccatin III, as shown by liquid chromatography–mass spectroscopy. The mass spectra of baccatin III were identical to the authentic baccatin III. The LtDBAT enzyme was characterized and the kinetic parameters of catalysis were determined. In addition, localization of LtDBAT was performed by using confocal microscopy and the result showed that the enzyme was localized in lipid droplets. Together, this study provides biochemical insights into the fungal recombinant DBAT enzyme that is involved in the Taxol biosynthetic pathway. In the near future, engineering of the LtDBAT enzyme and the Taxol biosynthetic pathway in endophytic fungi could be an eco-friendly and economically feasible alternative source for production of Taxol and its precursors.

scholarly journals The potential of Endophytic Fungal Extract Isolated from Cinnamon (Cinnamomum burmannii) as Antidiabetic and Antioxidant

2019 ◽  
Vol 22 (6) ◽  
pp. 275-282 ◽  
Author(s):  
Eris Septiana ◽  
Fauzy Rachman ◽  
Yatri Hapsari ◽  
Yadi Yadi ◽  
Bustanussalam Bustanussalam ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Endophytic Fungi ◽  
Antioxidant Activities ◽  
Radical Scavenging ◽  
Total Phenol ◽  
Antidiabetic Activity ◽  
Total Phenol Content ◽  
Phenol Content ◽  
Fungal Extract ◽  
Glucose Levels

An increase in blood glucose levels in people with diabetes can cause an increase in free radicals, which can worsen the disease. Thus, drugs that have antidiabetic and antioxidant activities are needed. The cinnamon plant is high in antioxidants and has long been used as a source for a diabetes drug. The utilization of endophytic fungi isolated from cinnamon plants as antidiabetic and antioxidant has never been reported. This study aims to investigate the antidiabetic as well as antioxidant activity from the extract of endophytic fungi from the cinnamon plant. The antidiabetic activity was tested using the α-glucosidase enzyme inhibition method, while antioxidant activity was tested using the DPPH free radical scavenging method. Total phenol content was measured based on the Follin-Ciocalteu reagent reaction. All endophytic fungal extracts from the cinnamon leaves, twigs, flowers, and fruit have antidiabetic and antioxidant activity as well as high total phenol content. The three parameters measured showed a positive correlation. Endophytic fungal extract of Cb.D6 isolate derived from the leaf had the highest antidiabetic and antioxidant activity among the other isolates amounting to 92.41% and 90.28%, respectively. In addition, the total phenol content of Cb.D6 isolates was also the highest with 357.83 mg equivalent to gallic acid/g extract. Therefore, the endophytic fungal extract of Cb.D6 isolate has the potential to be developed as a source of the antidiabetic and antioxidant ingredients.

Jumpstarting Health With a 15-Day Whole-Food Plant-Based Program

2021 ◽  
pp. 155982762110063
Author(s):  
Susan M. Friedman ◽  
Carol Hee Barnett ◽  
Robert Franki ◽  
Bruce Pollock ◽  
Beth Garver ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Systolic Blood Pressure ◽  
Blood Sugar ◽  
Low Density Lipoprotein ◽  
Density Lipoprotein ◽  
Food Plant ◽  
Fasting Blood Sugar ◽  
Average Weight ◽  
Low Density ◽  
Average Drop

The 15-day Jumpstart was developed as an evidence-based, affordable, standardized, replicable, and scalable program, designed to demonstrate quickly to patients that changing what they eat can improve their health. The program was designed using the principles of the self-determination theory of motivation and personality. Patients were instructed to eat an Esselstyn-compliant, whole-food plant-based diet consisting of vegetables, fruits, whole grains, and legumes. Of the 389 participants in the program from September 2018 to February 2020, average weight loss was 5.8 pounds (7.3 for those whose body mass index was >30), average systolic blood pressure drop was 6.8 points (16.8 points for those with systolic blood pressure >140), average drop in cholesterol was 26 points (44 points for those with a cholesterol >200), average drop in low-density lipoprotein was 19 points (33 points for those with a low-density lipoprotein >100), and average drop in fasting blood sugar was 5.1 points (28.4 points for those starting in the diabetic range); P value was <.005 for fasting blood sugar and <.001 for all other comparisons. A 15-day program that helps patients adopt an Esselstyn-style whole-food plant-based diet, through education, individualized medical feedback, social support, and facilitated small group work, rapidly improves health.

scholarly journals Effect of Regular Khat Chewing on Serum Fasting Sugar Level in Diabetic patients versus Healthy Individuals; A comparative study

2021 ◽  
Vol 14 ◽  
pp. 117863882110352
Author(s):  
Yordanos Mengistu ◽  
Gobena Dedefo ◽  
Mesay Arkew ◽  
Gebeyehu Asefa ◽  
Gutema Jebessa ◽  
...  
Keyword(s):  
Risk Factors ◽  
Blood Glucose ◽  
Glycemic Control ◽  
Glucose Oxidase ◽  
Blood Sugar ◽  
Poor Glycemic Control ◽  
Fasting Blood Sugar ◽  
Healthy Individuals ◽  
Cross Sectional ◽  
Khat Chewer

Background: Khat chewing is a long standing social-cultural habit in several countries. Even though many people chew khat simply for its pleasurable and stimulatory effect, evidence showed widely-held belief among khat chewers in Ethiopia and other part of the world that khat helps to lower blood glucose while some studies are contradicted on the effect of khat. There is limited data about khat’s effect on blood glucose especially in our setting, Harar estern Ethiopia. Objective: Primarily the present study aims to compare fasting blood sugar level among khat chewer diabetic and healthy individuals, and to asses risk factors associated with poor glycemic control in diabetic subjects. Method: A cross-sectional study included 200 confirmed diabetic and healthy subjects. Fasting blood sugar was determined by enzymatic method glucose oxidase and glucose hexokinase. Glycemic control was also determined for diabetic subjects based on the last 2-month diabetic clinic visits and current measurement. Result: (Median ± IQR [interquartile range]) fasting blood sugar difference among Khat chewer and non khat chewer were 159 ± 83 mg/dl and 202 ± 79 mg/dl respectively in diabetic subjects when tested by glucose oxidase. Similarly, in healthy non khat chewer and khat chewer, khat chewers has lower (Median ± IQR) fasting blood glucose level 82 ± 18 mg/dl than non khat chewers 94 ± 13 mg/dl when tested by glucose oxidase. Regarding risk factors associated with poor glycemic control in diabetic subjects, positive parental diabetes history, insulin medication, being overweight, obese were significantly associated with poor glycemic control. Conclusion: There was significant effect of khat on median FBS among khat chewers in diabetic and healthy individuals. And the proportion of glycemic control was high among diabetic subjects. Recommendation: Health care professional and patients should manage the risk factors to delay disease progression and restrain the damage. More studies should be conducted in randomized control trial manner to further elucidate khat effect on blood sugar level so that the actual effect of khat can be identified unlike in cross sectional where there may not be strong causal relationship.

Evaluation of the alterations in the serum blood sugar level, the activity of AST and ALT enzymes of diabetes mellitus type 2 in Iraqi women patients

2021 ◽  
Vol 16 (8) ◽  
pp. 98-102
Author(s):  
Hashim Abdul Razzaq Iman ◽  
Hussein Murtadha Jinan
Keyword(s):  
Diabetes Mellitus ◽  
Blood Sugar ◽  
Diabetes Mellitus Type 2 ◽  
Correlation Factor ◽  
Diabetes Mellitus Type ◽  
Fasting Blood Sugar ◽  
Diabetic Patients ◽  
Cell Dysfunction ◽  
Iraqi Women

Diabetes mellitus type 2 (T2DM) results from beta cell dysfunction or reduced action of insulin responsive. The objective of this study was to examine the relevance between blood sugar, the activity of aspartate aminotransferase (AST) and alanine aminotransferase (ALT) in fasting women diabetic patients in different durations. A total of sixty-eight women were divided into three groups: first a healthy group – non-diabetic (twenty-six women), second and third groups (twenty-one) were diabetic patients of age 35 – 50 and 51 – 69 years respectively. Serum fasting blood sugar was significantly (P < 0.05) elevated to 181.60 mg/dl in female patients with 35 – 50 years. The same effect happened in activity of AST to 32.91 u/L in 51 – 69 years and ALT was 28.43 u/L in 35 – 50 years. No significant differences were found between the aged and fasting blood sugar, AST and ALT in diabetic patients. The correlation factor (r) between fasting blood sugar and the activity of ALT was highly significant.

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