scholarly journals Hypoglicemic and Antioxidant Activity of Petiveria alliacea in Diabetic Rat Models

2020 ◽  
Vol 3 (1) ◽  
pp. 19
Author(s):  
Vania Azalia Gunawan ◽  
Harlina Soetjipto ◽  
Arifa Mustika
Keyword(s):  
Diabetes Mellitus ◽  
Blood Glucose ◽  
Ethanolic Extract ◽  
The Body ◽  
Antidiabetic Activity ◽  
Diabetic Rat ◽  
High Dose ◽  
Leaf Extracts ◽  
Chronic Hyperglycemia ◽  
Petiveria Alliacea

Introduction: Diabetes mellitus is a degenerative disease characterized by chronic hyperglycemia conditions in the body. Various complications of diabetes mellitus are caused by oxidative stress condition. Petiveria alliacea (P. alliacea) is a potential plant and easy to grow in hot regions. Leaf extracts of P. alliacea contain flavonoids and tannins which work as antidiabetic and antioxidant. In addition, other compounds found in P. alliacea leaf extracts like linoleic acid and allantoin show an increase in insulin secretion. Therefore, this study aimed to determine the antidiabetic activity of ethanolic extract of P. alliacea. Methods: We investigated the hypoglycemic and antioxidant effect of P. alliacea on STZ-induced diabetic rats. Rats were randomly divided into six groups named normal control, diabetes control, metformin (150 mg/kg/d), low dose of P. alliacea (90 mg/kg/d), intermediate dose (180 mg/kg/d), and high dose (360 mg/kg/d). Rats were orally given the treatment daily in the morning for fourteen days. At the end of the study, blood glucose level was measured and rats were sacrificed to measure blood malondialdehyde level.malondialdehydeResults: P. alliacea extract dose of 90 mg/kg and 360 mg/kg, and also metformin significantly decrease blood glucose levels. P. alliacea extract dose of 360 mg/kg was able to lower blood malondialdehyde level significantly which were not obtained on metformin. Conclusion: This finding suggests that ethanolic extract of P. alliacea possess antidiabetic effect at least on rats.

scholarly journals EVALUATION OF ANTIDIABETIC ACTIVITY OF ZANTHOXYLUM OVALIFOLIUM LEAF EXTRACTS

2021 ◽  
pp. 56-60
Author(s):  
ARUN K. ◽  
VIRUPAKSHA J. H.
Keyword(s):  
Lipid Profile ◽  
Aqueous Extract ◽  
Ethanolic Extract ◽  
Diabetic Rats ◽  
Antidiabetic Activity ◽  
Diabetic Rat ◽  
High Dose ◽  
Leaf Extracts ◽  
Standard Drug ◽  
Histopathological Studies

Objective: The present study was aimed to investigate the antidiabetic activity of ethanolic and aqueous extract of Zanthoxylum ovalifolium on alloxan induced diabetic rat model in rats. Methods: The leaves of Zanthoxylum ovalifolium were evaluated for antidiabetic activity by using alloxan induced diabetic model in diabetic rats. Diabetes was induced by single intraperitoneal injection of alloxan (100 mg/kg) and rats were treated orally with test extracts, standard drug (glibenclamide 5 mg/kg) and vehicle for 21 d. The hypoglycemic effects and lipid profile of diabetic rats were assessed using diagnostic kits. Finally, histopathological studies were carried out for pancreas. Results: The acute toxicity studies revealed at the dose of 2000 mg/kg (b. w) of Zanthoxylum ovalifolium for ethanol and aqueous extract were found to be safe. A significant reduction (p<0.001) in blood glucose was observed in diabetic rats treated with different doses of extracts compared to untreated diabetic rats. The drug possesses a good hyperlipidemic effect by normalizing the lipid parameters. This was evidenced by histopathological studies; both glibenclamide and 400 mg/kg of Ethanolic extract does appear to be regulated diabetes at the cellular level, resulting in the restoration of near normal architecture pancreatic islet of langerhans. Conclusion: It can be concluded from our research findings that ethanolic and aqueous extract of Zanthoxylum ovalifoliumat high dose (400 mg/kg) exhibited significant antihyperglycemic activity than extract at low dose (200 mg/kg) in alloxan induced diabetic rats. These extracts also showed improvement in parameters like lipid profile as well as regeneration β-cells in the pancreas and so might be of value in diabetes treatment.

scholarly journals Ethanol Extract of Tithonia diversifolia (Hemsley) A Gray Standardized Ameliorates Hyperglycemia, Polyphagia, and Weight Loss in Diabetic Rats

Molekul ◽  
2018 ◽  
Vol 13 (1) ◽  
pp. 72
Author(s):  
Yulia Fauziyah ◽  
Sunarti Sunarti ◽  
Ita Fauzia Hanoum ◽  
Mae Sri Hartati Wahyuningsih
Keyword(s):  
Diabetes Mellitus ◽  
Weight Loss ◽  
Blood Glucose ◽  
Ethanolic Extract ◽  
Ethanol Extract ◽  
Diabetic Rats ◽  
Diabetic Rat ◽  
Tithonia Diversifolia ◽  
Chronic Hyperglycemia ◽  
Group 2

Diabetes mellitus is a state of chronic hyperglycemia which causes various complications. Traditionally, The Tithonia diversifolia (Hemsley) A Gray leaf has long been used for the treatment of diabetes. The aim of this study is to investigate the effect of the T. diversifolia leaf on blood glucose, polyphagia, and weight loss in a diabetic rat model. Rats were made diabetic with intraperitonial injection of Nicotinamide and Streptozotocin and divided into 5 groups. Group 1 were healthy rats, group 2 were diabetic rats, while groups 3, 4, and 5 were diabetic rats treated with 25, 50, and 100 mg/kg body weight of 70% ethanol extract of Tithonia diversifolia leaf respectively for 28 days. Blood was taken after treatment for measuring glucose. The ethanol extract of T. diversifolia leaf decreased blood glucose in diabetic rats (P<0.05). The ethanol extract of T. diversifolia leaf significantly suppresses polyphagia and improves diabetic rat weight (P <0.05). In conclusion, Tithonia diversifolia ethanolic extract has anti-hyperglycemic effect and ameliorated the effect of diabetes mellitus symptoms, namely polyphagia and weight loss.

scholarly journals Study of Blood Glucose and SGPT lowering effect of Eucalyptus Lanceolata Linn. in Induced Diabetic Rabbits

2015 ◽  
pp. 152-158
Author(s):  
MINGYUE YAOA
Keyword(s):  
Diabetes Mellitus ◽  
Body Weight ◽  
Blood Glucose ◽  
The Body ◽  
Antidiabetic Activity ◽  
Medicinal Uses ◽  
Diabetic Rabbit ◽  
Pharmaceutical Industries ◽  
Diabetic Rabbits ◽  
Plants Extract

The part of the plant to curing the diabetes mellitus and improves available data on plants with hypoglycemic effects. Antidiuretic potential of eucalyptus extracts has been evaluated in alloxan-induced diabetic rabbit. Here we used, plants extract about 256 kg were mix with 1000 ml methanol and keep in Flask. After filtering the extracts were exposed to rotary evaporator machine that methanol separated from plant extract. In the Nine rabbit were divided into three different groups. The body weight was recorded on every 6 days interval. The data obtained revealed that eucalyptus extracts reduced the glucose level effectively. Such treatment with extracts decreased the SGPT level. Therefore, it is concluded that the eucalyptus possesses significant antidiabetic activity. And finally, we recommend this plant for medicinal uses and for pharmaceutical industries to isolate pure drugs.

Anti-Diabetic Potential of Murraya Koenigii (L.) and its Antioxidant Capacity in Nicotinamide-Streptozotocin Induced Diabetic Rats

Drug Research ◽  
2018 ◽  
Vol 68 (11) ◽  
pp. 631-636 ◽  
Author(s):  
Fauzul Husna ◽  
Franciscus Suyatna ◽  
Wawaimuli Arozal ◽  
Erni Poerwaningsih
Keyword(s):  
Blood Glucose ◽  
Antioxidant Properties ◽  
Ethanolic Extract ◽  
Diabetic Rats ◽  
The Body ◽  
Antidiabetic Activity ◽  
Murraya Koenigii ◽  
Insulin Mimetic ◽  
Protein Levels ◽  
Glucose Levels

Abstract Aim and Objective The present study aims to investigate whether the antihyperglycemic effect of Murraya koenigii is mediated by antioxidant properties and insulin mimetic effect. Methods Thirty Spraque-Dawley rats were induced hyperglycemia by streptozotocin and nicotinamide (STZ-NA). The STZ-NA diabetic rats were treated with an ethanolic extract of Murraya koenigii 200 mg/kg b.w and 400 mg/kg b.w. One group was treated with glibenclamide (1 mg/kg b.w). After the administration of Murraya koenigii extract and glibenclamide for four weeks, the rats were sacrificed. Blood and organ samples were collected under a fasting condition. The body weight and blood glucose levels were measured. Hepatic enzymes were determined using a commercial kit, protein levels were estimated by Bradford’s method, and plasma insulin was assayed by an ELISA kit. Malondialdehyde (MDA) and reduced glutathione (GSH) levels were estimated by the TBA-Wills method and Ellman’s method, respectively. Results Ethanolic extract of Murraya koenigii showed a significant reduction in blood glucose level at both doses, 200 and 400 mg/kg b.w. In addition, Murraya koenigii exhibited a profound antioxidant effect with decreased MDA level and increased GSH level, particularly at the 200 mg/kg b.w. and significantly decreased the HOMA-IR index. Conclusions The present study reveals that Murraya koenigii possesses antidiabetic activity and antioxidant effects on STZ-NA induced diabetes mellitus.

Ameliorative potential of Crinum asiaticum Linn leaf extracts on Elevated blood glucose in Alloxan-induced Diabetic Rats

2021 ◽  
pp. 6359-6363
Author(s):  
Abhinav Mishra ◽  
Vikram Singh ◽  
Raj K Prasad ◽  
Mohd Habeeb Ahmad
Keyword(s):  
Blood Glucose ◽  
Dose Level ◽  
Ethanolic Extract ◽  
Antidiabetic Activity ◽  
Oral Glucose ◽  
Oral Toxicity ◽  
Leaf Extracts ◽  
Glucose Lowering ◽  
Ethanolic Extracts ◽  
Crinum Asiaticum

In the present investigation the glucose lowering potential of the leaf extracts of Crinum asiaticum were prepared using cold maceration technique in solvents of varying polarity. The extracts exhibited the presence of flavonoids, alkaloids, phenolics and tannins. The oral toxicity of the aqueous and ethanolic extracts was determined and these two extracts were used of evaluating the antidiabetic activity. Oral glucose tolerance test was performed and diabetes was induced using alloxan (150 mg/kg) in rats. Ethanolic and aqueous extracts at two dose levels (200 mg/kg and 400mg/kg) were used for evaluating glucose lowering capability. Both the aqueous and the ethanolic extracts were found to significantly reduce glucose levels with the aqueous extract at dose level 200 mg/kg being the most effective (50% reduction) whereas the ethanolic extract was able to reduce the blood glucose by around 35% at the same dose level.

scholarly journals Comparative efficacy of two medicinal plants and Amaryl® tablet (Glimepiride) in induced diabetes mellitus in rat

1970 ◽  
Vol 6 (2) ◽  
pp. 297-300
Author(s):  
PC Das ◽  
M Mostofa ◽  
AK Sarkar ◽  
M Ali
Keyword(s):  
Diabetes Mellitus ◽  
Body Weight ◽  
Blood Glucose ◽  
Blood Glucose Concentration ◽  
The Body ◽  
Antidiabetic Activity ◽  
Herbal Extracts ◽  
Comparative Efficacy ◽  
Trigonella Foenum Graecum ◽  
Coccinia Indica

Comparative efficacy of two indigenous herbal extracts, (Trigonella foenum-graecum seed & Coccinia indica leaves) with the commonly used drug Glimepiride were studied. Healthy young rats (n=30) of both sexes weighting between 150 to 200 gm were selected and divided into six equal groups, as A (Control), B (diabetic), experimental diabetic groups were-C, D, E and F, treated with combined extract of Methi seed and Telakucha leaves- @ 250mg, 500mg, 750mg and Glimepiride 800μg/kg body weight, respectively. The substances were given orally once daily for14 days. The blood glucose concentration were decreased significantly (P<0.01) in groups C, D, E, and F. The body weight increased significantly (P<0.05) by 2.3%, 3.9%, 4.8% and 10.4%, respectively. The herbal extracts significantly reduced in blood glucose level with the increased in body weight. It is indicated that antidiabetic activity of Trigonella foenum-graecum and Coccinia indica are evident that are traditionally used as the herbal preparations by the Ayurvedic practitioners for the control of diabetes mellitus. Keywords: Trigonella foenum graecum; Coccinia indica; Amaryl® Tablet (Glimepiride); Streptozotocin and antidiabetic effect; Diabetes mellitus; Rat DOI: 10.3329/jbau.v6i2.4825 J. Bangladesh Agril. Univ. 6(2): 297-300, 2008

Synthesis, Characterization and Screening of Some Novel 2-Methyl-N'-[(Z)-Substituted-Phenyl ethylidene] Imidazo [1, 2-A] Pyridine-3-Carbohydrazide Derivatives as DPP-IV Inhibitors for the Treatment of Type 2 Diabetes Mellitus

2021 ◽  
Vol 18 ◽  
Author(s):  
Prerana A. Chavan ◽  
Shailaja B. Jadhav
Keyword(s):  
Diabetes Mellitus ◽  
Type 2 Diabetes ◽  
Type 2 Diabetes Mellitus ◽  
Blood Glucose ◽  
Antidiabetic Activity ◽  
Antihyperglycemic Activity ◽  
Chronic Hyperglycemia ◽  
Dpp Iv

Background: One of the leading global metabolic diseases marked by insulin resistance and chronic hyperglycemia is type 2 diabetes mellitus (T2DM). Since the last decade, DPP-4 enzyme inhibition has proved to be a successful, safe, and well-established therapy for the treatment of T2DM. Objective: The present work reports the synthesis, characterization, and screening of some novel 2-methyl-N'-[(Z)-substituted-phenyl ethylidene] imidazo [1, 2-a] pyridine-3-carbohydrazide derivatives as DPP-IV inhibitors for the treatment of T2DM. Methods: The molecular docking was performed to study these derivatives' binding mode in the enzyme's allosteric site. All the synthesized compounds were subjected for DPP-IV enzyme assay and in vivo antihyperglycemic activity in STZ-induced diabetic rats. Results: The synthesized derivatives exhibited potent antidiabetic activity as compared to the standard drug Sitagliptin. Out of sixteen compounds, A1, A4, B4, C2, C3, and D4 have shown promising antidiabetic activity against the DPP-IV enzyme. The most promising compound, C2, showed a percentage inhibition of 72.02±0.27 at 50 µM concentration. On the 21st-day compound, C2 showed a significant reduction in serum blood glucose level, i.e., 156.16±4.87 mg/dL, then diabetic control, which was 280.00±13.29 mg/dL whereas, standard Sitagliptin showed 133.50±11.80 mg/dL. In the in vivo antihyperglycemic activity, the compounds have exhibited good hypoglycemic potential in fasting blood glucose in the T2DM animal model. All the docked molecules have exhibited perfect binding affinity towards the active pocket of the enzyme. The synthesized derivatives were screened through Lipinski's rule of five for better optimization, and fortunately, none of them had violated the rule. Conclusion: The above results indicates that compound C2 is a relatively active and selective hit molecule that can be structurally modified to enhance the DPP-IV inhibitor's potency and overall pharmacological profile. From the present work, it has been concluded that substituted pyridine-3-carbohydrazide derivatives possess excellent DPP-IV inhibitory potential and can be better optimized further by generating more in vivo, in vitro models.

scholarly journals Aktivitas ekstrak etanol daun singawalang (Petiveria alliacea L.) dan fraksinya sebagai antidiabetes

2018 ◽  
Vol 5 (2) ◽  
pp. 68
Author(s):  
Elis Susilawati ◽  
I Ketut Adnyana ◽  
Neng Fisheri
Keyword(s):  
Diabetes Mellitus ◽  
Enzyme Activity ◽  
Blood Glucose ◽  
Ethanol Extract ◽  
Antidiabetic Activity ◽  
Insulin Deficiency ◽  
Water Fraction ◽  
Petiveria Alliacea ◽  
Alpha Glucosidase

<p><strong>Abstrak</strong><strong></strong></p><p><strong> </strong></p><p>Diabetes melitus (DM) adalah sekelompok gangguan metabolik yang ditandai dengan hiperglikemia. Salah satu tanaman yang mempunyai efek antidiabetes adalah daun singawalang (<em>Petiveria alliacea</em> L.). Penelitian ini bertujuan untuk menguji aktivitas antidiabetes dengan model hewan defisiensi insulin dan penghambatan enzim alfa glukosidase. Pengujian defisiensi insulin dilakukan menggunakan mencit induksi  aloksan. Mencit dikelompokkan menjadi 11 kelompok, yaitu normal, kontrol negatif, kontrol positif (glibenklamid 0,65 mg/kgbb), ekstrak etanol (dosis 80 dan 160 mg/kgbb), fraksi n-heksana (dosis 80 dan 160 mg/kgbb),  fraksi etil asetat (dosis 80 dan 160 mg/kgbb), dan fraksi air (dosis 80 dan 160 mg/kgbb). Pemberian bahan uji dilakukan berulang setiap hari selama 14 hari dan kadar glukosa darah diukur  pada hari ke-7, 14, 17, dan 19. Kemudian hewan dikorbankan, dilakukan isolasi pankreas, dan dihitung luas pulau Langerhans, jumlah sel alfa dan beta pankreas. Pada uji hambat enzim alfa glukosidase, dilakukan penentuan nilai IC50 tiap fraksi terhadap aktivitas enzim, dan akarbose digunakan sebagai pembanding. Hasil uji defisiensi insulin menunjukkan bahwa ekstrak etanol dosis 80 dan 160 mg/kgbb memiliki kemampuan untuk menurunkan kadar glukosa darah. Berdasarkan hasil histologi pankreas juga menunjukkan bahwa ekstrak etanol dosis 80 dan 160 mg/kgbb mengurangi jumlah sel alfa pankreas, diperkirakan dapat menurunkan sekresi glukagon. Pada metode penghambatan enzim alfa glukosidase fraksi <em>n</em>-heksana dan fraksi air menunjukkan adanya penghambatan aktivitas enzim alfa glukosidase yang lebih baik dibandingkan akarbose. Kesimpulan dari penelitian ini adalah ektrak etanol daun singawalang dan fraksinya mempunyai aktivitas sebagai antidiabetes.</p><p> </p><p><strong>Kata kunci:</strong>     Daun singawalang, defisiensi insulin, enzim alfa glukosidase.</p><p align="center"><strong><em> </em></strong></p><p align="center"><strong><em> </em></strong></p><p align="center"><strong><em>In vivo and in vitro activity of ethanol extracts from the leaves of singawalang (Petiveria alliacea l.) and its fractions as antidiabetic</em></strong></p><p> </p><p align="center"><strong><em>Abstract</em></strong></p><p align="center"><em> </em></p><p><em>Diabetes mellitus (DM) is a group of metabolic disorders characterized by hyperglycemia. One of the plants that has antidiabet</em><em>ic</em><em> effect is the leaves of singawalang (Petitiia alliacea L.). This study aims to examine antidiabetic activity with animal model of insulin deficiency and inhibition of alpha glucosidase enzyme. Tests of insulin deficiency were performed using alloxan induction mice. The mice were grouped into 11 groups, normal, negative control, positive control (glibenclamide 0.65 mg/kgb</em><em>w</em><em>), ethanol extract (doses 80 and 160 </em><em>mg/</em><em>kgb</em><em>w</em><em>), n-hexane fractions (doses 80 and 160 </em><em>mg/</em><em>kgb</em><em>w</em><em>), ethyl acetate doses 80 and 160 </em><em>mg/</em><em>kgb</em><em>w</em><em>), and water fractions (doses of 80 and 160 </em><em>mg/</em><em>kgb</em><em>w</em><em>). Testing was performed daily for 14 days and blood glucose was measured on days 7, 14, 17, and 19. Later animals were sacrificed, isolated pancreas, and calculated the area of Langerhans Island, the number of alpha and beta cells of the pancreas. In the alpha glucosidase enzyme inhibition test, IC50 values were determined for each fraction of enzyme activity, and the acarbose was used as a comparison. Insulin deficiency test results showed that ethanol extract dose 80 and 160 mg/kg b</em><em>w</em><em> has the ability to lower blood glucose levels. Based on histological results of the pancreas also showed that ethanol extract dose 80 and 160 mg/</em><em>k</em><em>gb</em><em>w</em><em> reduce the number of pancreatic alpha cells, is expected to decrease glucagon secretion. In the inhibition method of alpha glucosidase enzyme n-hexane fraction and water fraction showed the inhibition of alpha glucosidase enzyme activity better than akarbose. The conclusion of this research is the ethanol extract </em><em>of </em><em>singawalang</em><em> leaves</em><em> and fraction has activity as antidiabetes</em><em>.</em></p><p><em> </em></p><strong>Keywords:</strong>      Diabetes mellitus, leaf singawalang, insulin deficiency, the enzyme alpha-glucosidase.

scholarly journals Aktivitas ekstrak etanol daun singawalang (Petiveria alliacea L.) dan fraksinya sebagai antidiabetes

2017 ◽  
Vol 5 (2) ◽  
pp. 68
Author(s):  
Elis Susilawati ◽  
I Ketut Adnyana ◽  
Neng Fisheri
Keyword(s):  
Diabetes Mellitus ◽  
Enzyme Activity ◽  
Blood Glucose ◽  
Ethanol Extract ◽  
Antidiabetic Activity ◽  
Insulin Deficiency ◽  
Water Fraction ◽  
Petiveria Alliacea ◽  
Alpha Glucosidase

<p><strong>Abstrak</strong><strong></strong></p><p><strong> </strong></p><p>Diabetes melitus (DM) adalah sekelompok gangguan metabolik yang ditandai dengan hiperglikemia. Salah satu tanaman yang mempunyai efek antidiabetes adalah daun singawalang (<em>Petiveria alliacea</em> L.). Penelitian ini bertujuan untuk menguji aktivitas antidiabetes dengan model hewan defisiensi insulin dan penghambatan enzim alfa glukosidase. Pengujian defisiensi insulin dilakukan menggunakan mencit induksi  aloksan. Mencit dikelompokkan menjadi 11 kelompok, yaitu normal, kontrol negatif, kontrol positif (glibenklamid 0,65 mg/kgbb), ekstrak etanol (dosis 80 dan 160 mg/kgbb), fraksi n-heksana (dosis 80 dan 160 mg/kgbb),  fraksi etil asetat (dosis 80 dan 160 mg/kgbb), dan fraksi air (dosis 80 dan 160 mg/kgbb). Pemberian bahan uji dilakukan berulang setiap hari selama 14 hari dan kadar glukosa darah diukur  pada hari ke-7, 14, 17, dan 19. Kemudian hewan dikorbankan, dilakukan isolasi pankreas, dan dihitung luas pulau Langerhans, jumlah sel alfa dan beta pankreas. Pada uji hambat enzim alfa glukosidase, dilakukan penentuan nilai IC50 tiap fraksi terhadap aktivitas enzim, dan akarbose digunakan sebagai pembanding. Hasil uji defisiensi insulin menunjukkan bahwa ekstrak etanol dosis 80 dan 160 mg/kgbb memiliki kemampuan untuk menurunkan kadar glukosa darah. Berdasarkan hasil histologi pankreas juga menunjukkan bahwa ekstrak etanol dosis 80 dan 160 mg/kgbb mengurangi jumlah sel alfa pankreas, diperkirakan dapat menurunkan sekresi glukagon. Pada metode penghambatan enzim alfa glukosidase fraksi <em>n</em>-heksana dan fraksi air menunjukkan adanya penghambatan aktivitas enzim alfa glukosidase yang lebih baik dibandingkan akarbose. Kesimpulan dari penelitian ini adalah ektrak etanol daun singawalang dan fraksinya mempunyai aktivitas sebagai antidiabetes.</p><p> </p><p><strong>Kata kunci:</strong>     Daun singawalang, defisiensi insulin, enzim alfa glukosidase.</p><p align="center"><strong><em> </em></strong></p><p align="center"><strong><em> </em></strong></p><p align="center"><strong><em>In vivo and in vitro activity of ethanol extracts from the leaves of singawalang (Petiveria alliacea l.) and its fractions as antidiabetic</em></strong></p><p> </p><p align="center"><strong><em>Abstract</em></strong></p><p align="center"><em> </em></p><p><em>Diabetes mellitus (DM) is a group of metabolic disorders characterized by hyperglycemia. One of the plants that has antidiabet</em><em>ic</em><em> effect is the leaves of singawalang (Petitiia alliacea L.). This study aims to examine antidiabetic activity with animal model of insulin deficiency and inhibition of alpha glucosidase enzyme. Tests of insulin deficiency were performed using alloxan induction mice. The mice were grouped into 11 groups, normal, negative control, positive control (glibenclamide 0.65 mg/kgb</em><em>w</em><em>), ethanol extract (doses 80 and 160 </em><em>mg/</em><em>kgb</em><em>w</em><em>), n-hexane fractions (doses 80 and 160 </em><em>mg/</em><em>kgb</em><em>w</em><em>), ethyl acetate doses 80 and 160 </em><em>mg/</em><em>kgb</em><em>w</em><em>), and water fractions (doses of 80 and 160 </em><em>mg/</em><em>kgb</em><em>w</em><em>). Testing was performed daily for 14 days and blood glucose was measured on days 7, 14, 17, and 19. Later animals were sacrificed, isolated pancreas, and calculated the area of Langerhans Island, the number of alpha and beta cells of the pancreas. In the alpha glucosidase enzyme inhibition test, IC50 values were determined for each fraction of enzyme activity, and the acarbose was used as a comparison. Insulin deficiency test results showed that ethanol extract dose 80 and 160 mg/kg b</em><em>w</em><em> has the ability to lower blood glucose levels. Based on histological results of the pancreas also showed that ethanol extract dose 80 and 160 mg/</em><em>k</em><em>gb</em><em>w</em><em> reduce the number of pancreatic alpha cells, is expected to decrease glucagon secretion. In the inhibition method of alpha glucosidase enzyme n-hexane fraction and water fraction showed the inhibition of alpha glucosidase enzyme activity better than akarbose. The conclusion of this research is the ethanol extract </em><em>of </em><em>singawalang</em><em> leaves</em><em> and fraction has activity as antidiabetes</em><em>.</em></p><p><em> </em></p><p><strong>Keywords:</strong>      Diabetes mellitus, leaf singawalang, insulin deficiency, the enzyme alpha-glucosidase.</p>

Anti-Diabetic Effect of a Flavonoid and Sitosterol - Rich Aqueous Extract ofPleurotus tuberregiumSclerotia in Alloxan-Induced Diabetic Rabbits

2019 ◽  
Vol 19 (8) ◽  
pp. 1148-1156 ◽  
Author(s):  
Ifeanacho Mercy Onuekwuzu ◽  
Ikewuchi Catherine Chidinma ◽  
Ikewuchi Jude Chigozie
Keyword(s):  
Diabetes Mellitus ◽  
Blood Glucose ◽  
Aqueous Extract ◽  
Risk Index ◽  
Fasting Blood Glucose ◽  
Hdl Cholesterol ◽  
The Body ◽  
Atherogenic Index ◽  
Atherogenic Indices ◽  
Diabetic Rabbits

Objective:Traditionally prepared infusions and decoctions are commonly used in the management of diabetes mellitus, in southern Nigeria; one of such is the aqueous extract of the sclerotia of Pleurotus tuberregium (“usu” milk). In this study, the effects of the extract on the body weights, tissue/ organ weights, fasting blood glucose, blood/plasma lipid profiles and atherogenic indices were investigated in normal and alloxan-induced diabetic rabbits.Methods:Diabetes mellitus was induced by the injection of alloxan (120 mg/kg body weight) via the marginal ear vein. The extract was administered orally at 100, 200 and 300 mg/kg to normal and diabetic rabbits; while metformin was administered at 50 mg/kg. The crude extract was analyzed by gas chromatography, coupled to flame ionization detector.Results:Thirty-one known flavonoids were detected, consisting mainly of isoquercetin (28.5%), luteolin (24.3%), quercetin (18.8%) and kaempferol (11.3%). Sitosterol (82.0%) and stigmasterol (12.5%) were the most abundant of the seven phytosterols detected. Compared to the diabetic control, the treatment significantly (p<0.05) lowered the weights of the kidney and liver, as well as the levels of blood glucose and triglyceride, plasma VLDL, LDL and non-HDL cholesterol, atherogenic index of plasma, cardiac risk ratio, atherogenic coefficient and Castelli’s risk index II. It, however, significantly (p<0.05) increased plasma HDL cholesterol, without significantly affecting blood total cholesterol levels.Conclusion:This study showed that the extract was hypoglycemic, and improved lipid profile and atherogenic indices, thus highlighting its cardioprotective potential, thereby supporting its use in the management of diabetes mellitus.

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