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Yao X, Wan R, Li C, Li G, Zhang B, Deng Z, Li H. The hypoglycemic effect of enzymatic modified dietary fiber from bamboo shoot on type 2 diabetes rats. J Food Sci 2024. [PMID: 39150747 DOI: 10.1111/1750-3841.17258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Revised: 06/14/2024] [Accepted: 06/29/2024] [Indexed: 08/17/2024]
Abstract
Bamboo shoot is a healthy food rich in dietary fiber (DF). However, its highly insoluble DF and fibrous texture limit its application in industrially processed foods. To achieve industrial processing of bamboo shoot, cellulase was used to improve the physical characteristics of bamboo shoot DF in this study. After enzymatic hydrolysis, the content of soluble DF (SDF) of bamboo shoot increased by 99.28% (from 5.53% to 11.02%) significantly (p < 0.01). At the same time, the effect of enzymatic-modified bamboo SDF (EMBSDF) on streptozotocin-induced type 2 diabetes rats was explored. Results demonstrated that the high dose of EMBSDF (312.8 mg/kg) treated rats showed significant improvements in terms of glucose tolerance and insulin sensitivity (p < 0.01) compared with the diabetes rats. Meantime, it was observed that the levels of glucagon-like peptide-1, adiponectin and interleukin-4 of high dose of EMBSDF compared with diabetes rats were increased (p < 0.01) by 57.79%, 159.13%, and 6.17%, respectively. The tumor necrosis factor-α, C-reactive protein, and leptin levels were decreased (p < 0.01) by 62.89%, 31.53%, and 7.84%, respectively. Furthermore, apparent kidney and pancreas histology improvements were found in high-dose and mid-dose EMBSDF-treated diabetes rats. These results indicated that the modified DF significantly improved diabetes.
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Affiliation(s)
- Xiangjie Yao
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang, Jiangxi, China
| | - Renkou Wan
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang, Jiangxi, China
| | - Chunxiao Li
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang, Jiangxi, China
| | - Gongjing Li
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang, Jiangxi, China
| | - Bing Zhang
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang, Jiangxi, China
| | - Zeyuan Deng
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang, Jiangxi, China
| | - Hongyan Li
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang, Jiangxi, China
- International Institute of Food Innovation, Nanchang University, Nanchang, Jiangxi, China
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Chiribagula Valentin B, Ndjolo Philippe O, Mboni Henry M, Mushagalusa Kasali F. Ethnomedicinal Knowledge of Plants Used in Nonconventional Medicine in the Management of Diabetes Mellitus in Kinshasa (Democratic Republic of the Congo). EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2023; 2023:4621883. [PMID: 37771953 PMCID: PMC10533323 DOI: 10.1155/2023/4621883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Revised: 06/05/2023] [Accepted: 08/23/2023] [Indexed: 09/30/2023]
Abstract
Background People with diabetes, herbalists, and traditional medicine practitioners (TMPs) from Kinshasa use plants to treat diabetes, but no study has inventoried the plants used by these populations. The present study was conducted to identify the plants used in Kinshasa to treat diabetes mellitus. Methods The survey conducted in the form of a semistructured interview between March 2005 and August 2006 made it possible to collect ethnobotanical information from people with diabetes (n = 126), herbalists (n = 80), and TMPs (n = 120). Results The 326 subjects consulted (sex ratio M/F = 0.6, age 51 ± 7 years, and experience: 17 ± 5 years) provided information on 71 plants, most of which are trees (35%), belonging to 38 families dominated by Fabaceae (19.7%) and indicated in 51 other cases of consultation dominated by malaria (12%). From these 71 plants derived, 86 antidiabetic recipes were administered orally, where the leaf is the most used part (>50%) and the decoction (>46%) is the most common mode of preparation. This study reports for the first time the antidiabetic use of 11 species, among which Tephrosia vogeliiX (0.08), Chromolaena corymbosaX (0.06), and Baphia capparidifoliaX (0.06) present the highest consensus indexes (CI) and Marsdenia latifoliaW (UVp = 0.08) and Rauvolfia manniiX (UVp = 0.06) present the highest UVs. Conclusion The results show that Kinshasa people treat diabetes using several plants. Some are specific to the ecological environment; others are used in other regions. Pharmacological studies are underway to assess the therapeutic efficacy of these plants.
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Affiliation(s)
- Bashige Chiribagula Valentin
- Department of Pharmacy, Laboratory of Therapeutic Chemistry and Analysis of Natural Substances, Faculty of Pharmaceutical Sciences (Université de Lubumbashi), 27 Avenue Kato, Commune Kampemba, Lubumbashi, Congo
| | - Okusa Ndjolo Philippe
- Department of Pharmacy, Laboratory of Therapeutic Chemistry and Analysis of Natural Substances, Faculty of Pharmaceutical Sciences (Université de Lubumbashi), 27 Avenue Kato, Commune Kampemba, Lubumbashi, Congo
| | - Manya Mboni Henry
- Department of Pharmacy, Laboratory of Therapeutic Chemistry and Analysis of Natural Substances, Faculty of Pharmaceutical Sciences (Université de Lubumbashi), 27 Avenue Kato, Commune Kampemba, Lubumbashi, Congo
| | - Félicien Mushagalusa Kasali
- Department of Pharmacy, Faculty of Pharmaceutical Sciences and Public Health, Université Officielle de Bukavu (UOB), P.O. Box: 570, Bukavu, Commune of Kadutu, Av. Karhale, Congo
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Hussein AS, Hashem AH, Salem SS. Mitigation of the hyperglycemic effect of streptozotocin-induced diabetes albino rats using biosynthesized copper oxide nanoparticles. Biomol Concepts 2023; 14:bmc-2022-0037. [PMID: 38230658 DOI: 10.1515/bmc-2022-0037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Accepted: 12/07/2023] [Indexed: 01/18/2024] Open
Abstract
Diabetes mellitus is a metabolic disorder described by compromised insulin synthesis or resistance to insulin inside the human body. Diabetes is a persistent metabolic condition defined by elevated amounts of glucose in the bloodstream, resulting in a range of potential consequences. The main purpose of this study was to find out how biosynthesized copper oxide nanoparticles (CuONPs) affect the blood sugar levels of diabetic albino rats induced by streptozotocin (STZ). In the current study, CuONPs were successfully biosynthesized using Saccharomyes cervisiae using an eco-friendly method. Characterization results revealed that biosynthesized CuONPs appeared at 376 nm with a spherical shape with sizes ranging from 4 to 47.8 nm. Furthermore, results illustrated that administration of 0.5 and 5 mg/kg CuONP in diabetic rats showed a significant decrease in blood glucose levels accompanied by elevated insulin levels when compared to the diabetic control group; however, administration of 0.5 mg/kg is the best choice for diabetic management. Furthermore, it was found that the group treated with CuONPs exhibited a noteworthy elevation in the HDL-C level, along with a depletion in triglycerides, total cholesterol, LDL-C, and VLDL-cholesterol levels compared to the diabetic control group. This study found that administration of CuONPs reduced hyperglycemia and improved pancreatic function as well as dyslipidemia in diabetic rats exposed to STZ, suggesting their potential as a promising therapeutic agent for diabetes treatment.
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Affiliation(s)
- Ahmed Saber Hussein
- Zoology Department, Faculty of Science (Boys), Al-Azhar University, Cairo, 11884, Egypt
| | - Amr H Hashem
- Botany and Microbiology Department, Faculty of Science, Al-Azhar University, Nasr City, Cairo, 11884, Egypt
| | - Salem S Salem
- Botany and Microbiology Department, Faculty of Science, Al-Azhar University, Nasr City, Cairo, 11884, Egypt
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Terminalia catappa aqueous leaf extract reverses insulin resistance, improves glucose transport and activates PI3K/AKT signalling in high fat/streptozotocin-induced diabetic rats. Sci Rep 2022; 12:10711. [PMID: 35739183 PMCID: PMC9226017 DOI: 10.1038/s41598-022-15114-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Accepted: 06/17/2022] [Indexed: 11/08/2022] Open
Abstract
Rising prevalence of type 2 diabetes mellitus (T2DM) in sub-Saharan Africa has necessitated surveys of antidiabetic medicinal plants. This study assessed the antidiabetic mechanism of Terminalia catappa aqueous leaf extract (TCA) in high fat/low dose streptozotocin-induced type 2 diabetic rats. T2DM was induced by a combination of high-fat diet and low dose STZ (30 mg/kg bw) and the animals were administered with TCA (400 and 800 mg/kg bw) orally daily for 28 days. Biochemical parameters and indices for diabetes including renal function tests and pancreatic histology were evaluated. Relative expression of hepatic insulin resistance, signalling and glucose transport genes were also assessed. Induction of T2DM resulted in significant (p < 0.05) weight loss, dysregulated glucose level and clearance, electrolyte imbalance and disrupted diabetic biochemical parameters. Diabetes onset also perturbed β-cell function and insulin resistance indices, damaged pancreas microanatomy, while disrupting the expression of insulin receptor substrate 1 (IRS-1), phosphatidylinositol 3-kinase (PI3K), protein kinase B (AKT) and glucose transporter isoform 4 (GLUT-4) mRNA. Oral treatment of diabetic animals with TCA significantly (p < 0.05) ameliorated alterations due to T2DM induction in a manner comparable with glibenclamide. These results suggest TCA exerts its antidiabetic action by reversing insulin resistance, improving glucose transport and activating PI3K/AKT signalling.
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Govindarajan S, Babu SN, Vijayalakshmi MA, Manohar P, Noor A. Aloe vera carbohydrates regulate glucose metabolism through improved glycogen synthesis and downregulation of hepatic gluconeogenesis in diabetic rats. JOURNAL OF ETHNOPHARMACOLOGY 2021; 281:114556. [PMID: 34438036 DOI: 10.1016/j.jep.2021.114556] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2021] [Revised: 08/05/2021] [Accepted: 08/21/2021] [Indexed: 06/13/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Aloe vera (L.) Burm.f. is an ancient medicinal plant that belongs to the family Asphodelaceae. It has a rich source of bioactive constituents such as carbohydrates, polyphenols, peptides, sterols and tannins, etc. Aloe vera has multiple biological activities such as anti-inflammatory, antioxidant and antidiabetic activity etc. AIM OF THE STUDY: The present study investigated the antidiabetic mechanism of Aloe vera carbohydrate fraction (AVCF) and aimed to provide insights into the regulation of carbohydrate metabolism enzymes in glucose homeostasis. MATERIALS AND METHODS The antidiabetic effect of AVCF was evaluated using α-amylase, α-glucosidase inhibition, glucose diffusion and glucose uptake assay. The in vitro AVCF effect on insulin secretion, cell proliferation and inflammatory markers were determined using streptozotocin-induced oxidative stress on RIN-m5F cells. Streptozotocin-induced male Wistar diabetic rats were treated for 21 days with AVCF (54 mg/kg bw). The in vivo AVCF effect was measured on fasting plasma glucose, insulin, glucagon, hexokinase, glycogen synthase and glucose-6-phosphatase, levels in diabetic rats. Histopathological studies for organ-specific effects in the pancreas, liver and small intestine were also conducted. RESULTS AVCF-treated RIN-m5F cells significantly increased BrdU levels, with insulin secretion, and decreased TNF-α, IL-6 and nitric oxide levels. AVCF treated streptozotocin-induced diabetic rats showed significantly decreased fasting plasma glucose, glucagon and glucose-6-phosphatase levels with a concomitant increase in insulin, hexokinase, and glycogen synthase levels and, glycogen content. These findings corroborate with the improved hepatic glycogen content in the PAS stained histological section of the liver of AVCF treated diabetic rats. CONCLUSION These results suggest that CF of Aloe vera improved glucose metabolism by activation of glycogenesis and down-regulation of gluconeogenesis thereby, maintaining glucose homeostasis. Hence, AVCF can be used as an alternative medicine in the alleviation of diabetes mellitus symptoms.
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Affiliation(s)
| | | | | | - Poonkodi Manohar
- Sri Narayani Hospital and Research Centre, Vellore, Tamil Nadu, India
| | - Ayesha Noor
- Vellore Institute of Technology, Vellore, Tamil Nadu, India.
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Wang Y, Yan M, Qin R, Gong Y. Enzymolysis-Microwave-Assisted Hydrodistillation for Extraction of Volatile Oil from Atractylodes Chinensis and Its Hypoglycemic Activity in vitro. J AOAC Int 2021; 104:1196-1205. [PMID: 33471094 DOI: 10.1093/jaoacint/qsab008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 10/23/2020] [Accepted: 01/06/2021] [Indexed: 11/12/2022]
Abstract
BACKGROUND Atractylodes chinensis (family Asteraceae) is a perennial herb with many pharmacological effects. OBJECTIVE Extraction of volatile oil from Atractylodes chinensis was optimized and its hypoglycemic activities were studied. METHODS Enzymolysis-microwave-assisted hydrodistillation (EMAHD) was adopted to extract the volatile oil, and the technology was optimized using a single-factor experiment that incorporated response surface methodology (RSM). The extraction rates of volatile oil by EMAHD, microwave-assisted hydrodistillation (MAHD), and hydrodistillation (HD) methods were compared at different times. The ingredients of Atractylodes chinensis volatile oil were analyzed by gas chromatography-mass spectrometry. Scanning electron microscopy (SEM) were used to analyze the microstructural changes in Atractylodes chinensis residue before and after extraction. The inhibition of α-amylase activity was determined. RESULTS The obtained optimal extraction conditions for EMAHD were as follows: enzyme concentration 1.6%, pH 7, enzymolysis time 20 min, enzymolysis temperature 50°C, liquid-solid ratio 30:1, microwave power 455 W, and microwave time 40 min. The levels of the main ingredients and the in vitro inhibition of α-amylase activities were higher for Atractylodes chinensis volatile oil extracted by EMAHD than by HD or MAHD. The powder residue of Atractylodes chinensis remaining after EMAHD showed a ruptured and collapsed cell structure, indicating accelerated dissolution of the volatile oil. CONCLUSIONS AND HIGHLIGHTS EMAHD is deemed a method with many advantages for extraction of volatile oil from Atractylodes chinensis. The volatile oil of Atractylodes chinensis is a promising component for treating hyperglycemia.
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Affiliation(s)
- Yitong Wang
- Department of Pharmacy, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, China.,Key Laboratory of Pharmaceutical Research for Metabolic Diseases, Qingdao University of Science and Technology, Qingdao, China
| | - Meixing Yan
- Department of pharmacy, Qingdao Women and Children's Hospital, Qingdao, China
| | - Ruiqing Qin
- Department of Pharmacy, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, China.,Key Laboratory of Pharmaceutical Research for Metabolic Diseases, Qingdao University of Science and Technology, Qingdao, China
| | - Yanling Gong
- Department of Pharmacy, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, China.,Key Laboratory of Pharmaceutical Research for Metabolic Diseases, Qingdao University of Science and Technology, Qingdao, China
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Ajiboye BO, Diayi A, Agunbiade SO, Akinyemi AJ, Adewale OB, Ojo OA. Ameliorating activity of polyphenolic-rich extracts of Basella rubra L. leaves on pancreatic β-cell dysfunction in streptozotocin-induced diabetic rats. JOURNAL OF COMPLEMENTARY & INTEGRATIVE MEDICINE 2021; 19:335-344. [PMID: 33962509 DOI: 10.1515/jcim-2020-0304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Accepted: 04/04/2021] [Indexed: 11/15/2022]
Abstract
OBJECTIVES To assess the ameliorative activity of polyphenolic-rich extracts of Basella rubra leaves on β-cell dysfunction in type-II diabetes (T2DM). METHODS Total phenolic and flavonoid contents; α-amylase and α-glucosidase inhibitory actions and qualitative analysis of the bioactive compounds of the polyphenolic-rich extract of B. rubra leaves were investigated using gas chromatography-mass spectroscopy (GC-MS). Diabetes mellitus (DM) was induced by single intraperitoneal injection of streptozotocin (60 mg/kg body weight) and the rats were orally given bound phenolic (BPE) and free phenolic extracts (FPE) of B. rubra (B.R) leaves at 200 and 400 mg/kg b.w once daily for 14 days. Biochemical analyses were executed for evaluation of serum insulin, serum lipid profile concentrations, liver enzymes activities. RESULTS The extracts demonstrated antioxidant potentials and enzymes inhibitory activities in dose dependent manner; and several bioactive compounds as revealed by GC-MS. BPE and FPE considerably (p<0.05) reduced hyperglycemia, improved serum insulin levels, ameliorated the concentration of serum lipid profiles and improved liver antioxidant activities. Additionally, BPE and FPE expressively decreased alanine aminotransferases (ALT), aspartate aminotransferases (AST), gamma-glutamyl transferase (GGT) activities along with levels of bilirubin and urea when compare to diabetic control rats. CONCLUSIONS Data acquired exhibited the ability of BPE and FPE to improve pancreatic beta-cell in streptozotocin-induced rats.
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Affiliation(s)
- Basiru Olaitan Ajiboye
- Department of Biochemistry, Phytomedicine, Biochemical Toxicology and Biotechnology Research Laboratory, College of Sciences, Afe Babalola University, Ado-Ekiti, Ekiti State, Nigeria.,Department of Biochemistry, Federal University Oye Ekiti, Oye-Ekiti, Nigeria
| | - Amaka Diayi
- Department of Biochemistry, Phytomedicine, Biochemical Toxicology and Biotechnology Research Laboratory, College of Sciences, Afe Babalola University, Ado-Ekiti, Ekiti State, Nigeria
| | - Shedrach Oludare Agunbiade
- Department of Biochemistry, Phytomedicine, Biochemical Toxicology and Biotechnology Research Laboratory, College of Sciences, Afe Babalola University, Ado-Ekiti, Ekiti State, Nigeria
| | - Ayodele Jacob Akinyemi
- Department of Biochemistry, Phytomedicine, Biochemical Toxicology and Biotechnology Research Laboratory, College of Sciences, Afe Babalola University, Ado-Ekiti, Ekiti State, Nigeria
| | - Olusola Bolaji Adewale
- Department of Biochemistry, Phytomedicine, Biochemical Toxicology and Biotechnology Research Laboratory, College of Sciences, Afe Babalola University, Ado-Ekiti, Ekiti State, Nigeria
| | - Oluwafemi Adeleke Ojo
- Department of Biochemistry, Phytomedicine, Natural Products, Drug and Biochemical Toxicology Group, Landmark University, Omu Aran, PMB 1001, Kwara State, Nigeria
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Arise RO, Taofeek OO, Babaita K, Adeoye RI, Osemwegie O. Blood pressure and sugar regulating potentials of Anarcadium occidentale nut globulin and albumin hydrolysates. Heliyon 2021; 7:e06384. [PMID: 33748468 PMCID: PMC7970272 DOI: 10.1016/j.heliyon.2021.e06384] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 12/30/2020] [Accepted: 02/24/2021] [Indexed: 12/18/2022] Open
Abstract
Several novel functional peptides have been successfully extracted from plant storage proteins. This study investigated the degree of hydrolysis, peptide yield, amino acid constituents, angiotensin converting enzyme (ACE), alpha amylase inhibitory and in vitro antioxidant activities of cashew (Anarcardium occidentale) nut proteins (CNP) hydrolysates (CNPHs). Cashew nut proteins (albumin and globulin) were hydrolysed using pancreatin, Alcalase and trypsin. The peptide yield and degree of hydrolysis (DH) of CNP by pancreatin (75.69 ± 0.84%; 37.39 ± 0.31) was significantly higher than those by Alcalase (61.67 ± 0.55%; 23.87 ± 0.23) and trypsin (43.33 ± 0.45%; 11 ± 0.15). The inhibition of ACE by albumin and globulin hydrolysates was concentration dependent. At 1.2 mg/mL, ACE-inhibitory activity of pancreatic cashew nut globulin (CNGH) hydrolysate (51.65 ± 1.2%) was significantly higher than those of Alcalase (34.603 ± 0.65%) and tryptic (29.92 ± 0.73%) CNGHs. Cashew nut albumin hydrolysate (CNAH) demonstrated concentration-dependent alpha-amylase inhibition (IC50 0.17 ± 0.02-0.41 ± 0.021 mg/mL). The order of inhibition was tryptic > Alcalase > pancreatic CNAHs. The pancreatic hydrolysates of both albumin and globulin fractions displayed the highest DPPH antioxidant activity, while pancreatic CNAH was the most potent superoxide anion scavenger. These findings therefore posit that cashew nut globulin and albumin hydrolysates are laden with useful bioactive peptides that may be further explored for regulation of blood pressure and sugar in hypertensive and diabetic in vivo models.
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Affiliation(s)
- Rotimi Olusanya Arise
- Department of Biochemistry, Faculty of Life Sciences, University of Ilorin, P.M.B. 1515, Ilorin, Nigeria
| | | | - Kehinde Babaita
- Department of Biochemistry, Faculty of Life Sciences, University of Ilorin, P.M.B. 1515, Ilorin, Nigeria
| | - Raphael Idowu Adeoye
- Department of Biochemistry, Faculty of Life Sciences, University of Ilorin, P.M.B. 1515, Ilorin, Nigeria
| | - Omorefosa Osemwegie
- Department of Biological Sciences, College of Science and Engineering, Landmark University, Omu-Aran, Nigeria
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Plant Extracts for Type 2 Diabetes: From Traditional Medicine to Modern Drug Discovery. Antioxidants (Basel) 2021; 10:antiox10010081. [PMID: 33435282 PMCID: PMC7827314 DOI: 10.3390/antiox10010081] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2020] [Revised: 01/04/2021] [Accepted: 01/07/2021] [Indexed: 12/17/2022] Open
Abstract
Type 2 diabetes mellitus (T2DM) is one of the largest public health problems worldwide. Insulin resistance-related metabolic dysfunction and chronic hyperglycemia result in devastating complications and poor prognosis. Even though there are many conventional drugs such as metformin (MET), Thiazolidinediones (TZDs), sulfonylureas (SUF), dipeptidyl peptidase 4 (DPP-4) inhibitors, glucagon like peptide 1 (GLP-1) and sodium-glucose cotransporter-2 (SGLT-2) inhibitors, side effects still exist. As numerous plant extracts with antidiabetic effects have been widely reported, they have the potential to be a great therapeutic agent for type 2 diabetes with less side effects. In this study, sixty-five recent studies regarding plant extracts that alleviate type 2 diabetes were reviewed. Plant extracts regulated blood glucose through the phosphoinositide 3-kinase (PI3K)/protein kinase B (Akt) pathway. The anti-inflammatory and antioxidant properties of plant extracts suppressed c-Jun amino terminal kinase (JNK) and nuclear factor kappa B (NF-κB) pathways, which induce insulin resistance. Lipogenesis and fatty acid oxidation, which are also associated with insulin resistance, are regulated by AMP-activated protein kinase (AMPK) activation. This review focuses on discovering plant extracts that alleviate type 2 diabetes and exploring its therapeutic mechanisms.
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Elucidating the interactions of compounds identified from Aframomum melegueta seeds as promising candidates for the management of diabetes mellitus: A computational approach. INFORMATICS IN MEDICINE UNLOCKED 2021. [DOI: 10.1016/j.imu.2021.100720] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Omotuyi IO, Nash O, Ajiboye BO, Olumekun VO, Oyinloye BE, Osuntokun OT, Olonisakin A, Ajayi AO, Olusanya O, Akomolafe FS, Adelakun N. Aframomum melegueta secondary metabolites exhibit polypharmacology against SARS-CoV-2 drug targets: in vitro validation of furin inhibition. Phytother Res 2020; 35:908-919. [PMID: 32964551 DOI: 10.1002/ptr.6843] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 07/10/2020] [Accepted: 07/17/2020] [Indexed: 12/25/2022]
Abstract
COVID-19 pandemic is currently decimating the world's most advanced technologies and largest economies and making its way to the continent of Africa. Weak medical infrastructure and over-reliance on medical aids may eventually predict worse outcomes in Africa. To reverse this trend, Africa must re-evaluate the only area with strategic advantage; phytotherapy. One of the many plants with previous antiviral potency is against RNA viruses is Aframomum melegueta. In this study, one hundred (100) A. melegueta secondary metabolites have been mined and computational evaluated for inhibition of host furin, and SARS-COV-2 targets including 3C-like proteinase (Mpro /3CLpro ), 2'-O-ribose methyltransferase (nsp16) and surface glycoprotein/ACE2 receptor interface. Silica-gel column partitioning of A. melegueta fruit/seed resulted in 6 fractions tested against furin activity. Diarylheptanoid (Letestuianin A), phenylpropanoid (4-Cinnamoyl-3-hydroxy-spiro[furan-5,2'-(1'H)-indene]-1',2,3'(2'H,5H)-trione), flavonoids (Quercetin, Apigenin and Tectochrysin) have been identified as high-binding compounds to SARS-COV-2 targets in a polypharmacology manner. Di-ethyl-ether (IC50 = 0.03 mg/L), acetone (IC50 = 1.564 mg/L), ethyl-acetate (IC50 = 0.382 mg/L) and methanol (IC50 = 0.438 mg/L) fractions demonstrated the best inhibition in kinetic assay while DEF, ASF and MEF completely inhibited furin-recognition sequence containing Ebola virus-pre-glycoprotein. In conclusion, A. melegueta and its secondary metabolites have potential for addressing the therapeutic needs of African population during the COVID-19 pandemic.
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Affiliation(s)
- I Olaposi Omotuyi
- Chemo-Genomics Research Unit, Department of Biochemistry, Adekunle Ajasin University, Akungba, Nigeria.,Chemoinformatics Unit, Mols & Sims, Ado Ekiti, Nigeria
| | - Oyekanmi Nash
- Center for Genomics Research and Innovation, National Biotechnology Development Agency, Abuja, Nigeria
| | - Basiru O Ajiboye
- Phytomedicine, Biochemical Toxicology and Biotechnology Research Laboratories, Department of Biochemistry, College of Sciences, Afe Babalola University, Ado Ekiti, Nigeria
| | - Victor O Olumekun
- Department of Plant Science and Biotechnology, Adekunle Ajasin University, Akungba, Nigeria
| | - Babatunji E Oyinloye
- Phytomedicine, Biochemical Toxicology and Biotechnology Research Laboratories, Department of Biochemistry, College of Sciences, Afe Babalola University, Ado Ekiti, Nigeria.,Biotechnology and Structural Biology (BSB) Group, Department of Biochemistry and Microbiology, University of Zululand, KwaDlangezwa, South Africa
| | - Oludare T Osuntokun
- Department of Chemical Sciences, Adekunle Ajasin University, Akungba, Nigeria
| | - Adebisi Olonisakin
- Department of Chemical Sciences, Adekunle Ajasin University, Akungba, Nigeria
| | - A Olajide Ajayi
- Department of Microbiology, Adekunle Ajasin University, Akungba, Nigeria
| | - Olasehinde Olusanya
- Department of Biochemistry, Faculty of Life Sciences, University of Benin, Benin City, Nigeria
| | | | - Niyi Adelakun
- Chemoinformatics Unit, Mols & Sims, Ado Ekiti, Nigeria
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Erukainure OL, Ijomone OM, Chukwuma CI, Xiao X, Salau VF, Islam MS. Dacryodes edulis (G. Don) H.J. Lam modulates glucose metabolism, cholinergic activities and Nrf2 expression, while suppressing oxidative stress and dyslipidemia in diabetic rats. JOURNAL OF ETHNOPHARMACOLOGY 2020; 255:112744. [PMID: 32165174 DOI: 10.1016/j.jep.2020.112744] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2019] [Revised: 02/04/2020] [Accepted: 03/05/2020] [Indexed: 06/10/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Dacryodes edulis L. is an evergreen tree indigenous to western and eastern Africa which is utilized for nutritional and medicinal purposes. Folklorically, different parts of the tree are used in treating and managing diabetes and its complications. AIMS The antidiabetic effect of the butanol fraction of D. edulis ethanol extract (BFDE) was studied in fructose-streptozotocin induced type 2 diabetic rats. METHODS The ethanol extract was fractionated to yield the hexane, dichloromethane, ethyl acetate, butanol and aqueous fractions. The in vitro antidiabetic activities of the fractions were determined by their ability to inhibit α-glucosidase activity. BDFE was the most active and showed no cytotoxic effect while stimulating glucose uptake in 3T3-L1 adipocytes. Thus, selected for in vivo study. Diabetic rats were grouped into 4. The negative control group was administered water only, another group was treated with metformin (200 mg/kg bodyweight), while the other groups were administered BDFE at 150 and 300 mg/kg bodyweight respectively. Two other groups consisting of normal rats were given water and BFDE (300 mg/kg bodyweight) respectively, with the former serving as normal control. After 6 weeks of intervention, the rats were humanely sacrificed using appropriate anaesthesia. RESULTS Treatment with the fraction significantly (p < 0.05) reduced the blood glucose level of the diabetic rats, with concomitant increase in serum insulin secretion. It also caused significant (p < 0.05) elevation of reduced glutathione level, superoxide dismutase, catalase, α-amylase, and ATPase activities, with concomitant depletion in myeloperoxidase activity, NO and MDA levels of the serum and pancreas. The pancreatic morphology and β-cell function were significantly improved in BFDE-treated rats, with restoration of the pancreatic capillary networks. Treatment with BFDE significantly (p < 0.05) inhibited the activities of glycogen phosphorylase, fructose 1,6 biphosphatase, glucose 6 phosphatase, and acetylcholinesterase, while suppressing the expression of Nrf2. HPLC analysis revealed the presence of gallic acid, vanillic acid, vanillin, and (-)-epicatechin in the fraction. CONCLUSION These results portray the antidiabetic and antioxidative properties of BFDE, which may be a synergistic consequence of the identified phenolics.
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Affiliation(s)
- Ochuko L Erukainure
- Department of Biochemistry, School of Life Sciences, University of KwaZulu-Natal, (Westville Campus), Durban, 4000, South Africa; Department of Pharmacology, University of the Free State, Bloemfontein, 9300, South Africa
| | | | - Chika I Chukwuma
- Department of Health Sciences, Faculty of Health and Environmental Sciences, Central University of Technology, Bloemfontein, 9300, South Africa
| | - Xin Xiao
- Department of Biochemistry, School of Life Sciences, University of KwaZulu-Natal, (Westville Campus), Durban, 4000, South Africa
| | - Veronica F Salau
- Department of Biochemistry, School of Life Sciences, University of KwaZulu-Natal, (Westville Campus), Durban, 4000, South Africa
| | - Md Shahidul Islam
- Department of Biochemistry, School of Life Sciences, University of KwaZulu-Natal, (Westville Campus), Durban, 4000, South Africa.
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Antihyperlipidemic Activities and Hematological Properties of Ethanol Extract of Blighia Sapida Koenig Bark in Alloxan-Induced Diabetic Rats. SERBIAN JOURNAL OF EXPERIMENTAL AND CLINICAL RESEARCH 2020. [DOI: 10.2478/sjecr-2018-0042] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
Abstract
Blighia sapida (BS) has been shown to be rich sources of antioxidant, thus, we evaluated effects of B. sapida Koenig stem bark ethanol extract (BSE) on lipid metabolism and hematological indices in diabetes rats.
Thirty male rats were divided into six groups of five rats each. Diabetes was elicited by intraperitoneal injection of alloxan (65 mg/kg body weight) once and orally administered with glibenclamide (5 mg/kg), B. sapida extract (50, 100 and 150 mg/kg body weight (bw) once daily for 21 days. Serum lipid profile, markers of hepato-renal toxicity and hemato-logical indices were examined using automated analyzer. Data were analyzed using one-way ANOVA and p < 0.05 was considered to be statistically different.
Diabetic untreated animals showed considerably elevated total cholesterol p < 0.05, also, significant increase in AST, ALT, ALP, urea and creatinine compared to control. Triglycerides, LDL-c, VLDL-c, AI and CRI decreased with extract administration and HDL-c increased considerable compared to untreated diabetic rats. Furthermore, significant lower hemoglobin (Hb) levels, packed cell volume (PCV), red blood cells (RBCs) levels, white blood cells (WBCs) compared to normal animals was recorded in the untreated group. These changes were returned to normal after the administration of extract 50, 100 and 150 mg/ kg body weight. Hence, these effects were most prominent in the animals treated with 150 mg/kg body weight of B. sapida bark.
This indicates that B. sapida stem bark possess anti-hyperlipidemic activity and improved the biochemical parameters within the hematological profile of diabetic rats.
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Atchan Nwakiban AP, Cicolari S, Piazza S, Gelmini F, Sangiovanni E, Martinelli G, Bossi L, Carpentier-Maguire E, Deutou Tchamgoue A, Agbor GA, Kuiaté JR, Beretta G, Dell’Agli M, Magni P. Oxidative Stress Modulation by Cameroonian Spice Extracts in HepG2 Cells: Involvement of Nrf2 and Improvement of Glucose Uptake. Metabolites 2020; 10:metabo10050182. [PMID: 32370041 PMCID: PMC7281205 DOI: 10.3390/metabo10050182] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 04/27/2020] [Accepted: 04/29/2020] [Indexed: 12/15/2022] Open
Abstract
Oxidative stress plays a relevant role in the progression of chronic conditions, including cardiometabolic diseases. Several Cameroonian plants, including spices, are traditionally used as herbal medicines for the treatment of diseases where oxidative stress contributes to insulin resistance, like type 2 diabetes mellitus. This study evaluated the antioxidant capacity and the effects on oxidative-stress-induced impairment of glucose uptake of 11 Cameroonian spice extracts. H2O2-induced reactive oxygen species (ROS) production by human HepG2 cells was significantly reduced by 8/11 extracts. The most effective extracts, Xylopia parviflora, Echinops giganteus, and Dichrostachys glomerata, showed a concentration-dependent ROS-scavenging activity, which involved Nrf2 translocation into the nucleus. Xylopia parviflora, Tetrapleura tetraptera, Dichrostachys glomerata, Aframomum melegueta, and Aframomum citratum extracts showed the highest antioxidant capacity, according to oxygen radical absorbance capacity (ORAC) (2.52-88 μM Trolox Eq/g of extract), ferric-reducing antioxidant power (FRAP) (40.23-233.84 mg gallic acid Eq/g of extract), and total phenol (8.96-32.96% mg gallic acid Eq/g of extract) assays. In HepG2 cells, glucose uptake was stimulated by 4/11 extracts, similarly to insulin and metformin. H2O2-induced oxidative stress reduced glucose uptake, which was rescued by pretreatment with Xylopia aethiopica, Xylopia parviflora, Scorodophloeus zenkeri, Monodora myristica, and Dichrostachys glomerata extracts. The ROS-scavenging ability of the spice extracts may reside in some secondary metabolites observed by phytochemical profiling (reverse-phase high-performance liquid chromatography coupled to a diode array detector (HPLC-UV-DAD)). Further studies are needed to better clarify their biological activities and potential use to control oxidative stress and promote insulin sensitivity.
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Affiliation(s)
| | - Stefania Cicolari
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Via G. Balzaretti 9, 20133 Milano, Italy; (S.C.); (S.P.); (E.S.); (G.M.); (L.B.)
| | - Stefano Piazza
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Via G. Balzaretti 9, 20133 Milano, Italy; (S.C.); (S.P.); (E.S.); (G.M.); (L.B.)
| | - Fabrizio Gelmini
- Department of Environmental Science and Policy, Università degli Studi di Milano, via G. Celoria 2, 20133 Milano, Italy; (F.G.); (G.B.)
| | - Enrico Sangiovanni
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Via G. Balzaretti 9, 20133 Milano, Italy; (S.C.); (S.P.); (E.S.); (G.M.); (L.B.)
| | - Giulia Martinelli
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Via G. Balzaretti 9, 20133 Milano, Italy; (S.C.); (S.P.); (E.S.); (G.M.); (L.B.)
| | - Lorenzo Bossi
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Via G. Balzaretti 9, 20133 Milano, Italy; (S.C.); (S.P.); (E.S.); (G.M.); (L.B.)
| | | | - Armelle Deutou Tchamgoue
- Centre for Research on Medicinal Plants and Traditional Medicine, Institute of Medical Research and Medicinal Plants Studies (IMPM), Yaoundé 4124, Cameroon; (A.D.T.); (G.A.A.)
| | - Gabriel A. Agbor
- Centre for Research on Medicinal Plants and Traditional Medicine, Institute of Medical Research and Medicinal Plants Studies (IMPM), Yaoundé 4124, Cameroon; (A.D.T.); (G.A.A.)
| | - Jules-Roger Kuiaté
- Department of Biochemistry, Faculty of Science, University of Dschang, P.O. Box 96 Dschang, Cameroon; (A.P.A.N.); (J.-R.K.)
| | - Giangiacomo Beretta
- Department of Environmental Science and Policy, Università degli Studi di Milano, via G. Celoria 2, 20133 Milano, Italy; (F.G.); (G.B.)
| | - Mario Dell’Agli
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Via G. Balzaretti 9, 20133 Milano, Italy; (S.C.); (S.P.); (E.S.); (G.M.); (L.B.)
- Correspondence: (M.D.); (P.M.); Tel.: +39-0250318398 (M.D.); +39-0250318229 (P.M.)
| | - Paolo Magni
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Via G. Balzaretti 9, 20133 Milano, Italy; (S.C.); (S.P.); (E.S.); (G.M.); (L.B.)
- IRCCS MultiMedica, Sesto San Giovanni, Via Milanese, 300, 20099 Sesto San Giovanni Milan, Italy
- Correspondence: (M.D.); (P.M.); Tel.: +39-0250318398 (M.D.); +39-0250318229 (P.M.)
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Antidiabetic Effects of Soluble Dietary Fiber from Steam Explosion-Modified Black Soybean Hull in Low-Dose Streptozotocin-Induced Type 2 Diabetic Mouses. J CHEM-NY 2019. [DOI: 10.1155/2019/6821438] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
This paper studies the antidiabetic effects of soluble dietary fiber (SDF) from steam explosion-modified black soybean hull in low-dose streptozotocin- (STZ-) induced type 2 diabetic mouses. Male C57/BL6 mouses were divided into 4 groups: control (nondiabetic, no SDF intake), model (diabetes only), metformin (metformin: 100 mg/kg body weight), and SDF (SDF: 600 mg/kg body weight). Four weeks post-SDF treatment, treatment of SDF decreased the weight gain of diabetic mouses, normalised the blood glucose level, and reduced the serum cholesterol, serum insulin, leptin, glucagon-like peptide, total cholesterol, triglyceride, low-density lipoprotein cholesterol, arteriosclerosis index, aspartate aminotransferase activity, and malondialdehyde. It also increased high-density lipoprotein cholesterol, adiponectin, glycopeptide peroxidase, superoxide dismutase activity and repaired the pancreatic injury of the diabetic mouses. Our research results show that SDF has the potential for use in type 2 diabetes treatment.
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Erukainure OL, Sanni O, Ijomone OM, Ibeji CU, Chukwuma CI, Islam MS. The antidiabetic properties of the hot water extract of kola nut (Cola nitida (Vent.) Schott & Endl.) in type 2 diabetic rats. JOURNAL OF ETHNOPHARMACOLOGY 2019; 242:112033. [PMID: 31220600 DOI: 10.1016/j.jep.2019.112033] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Revised: 06/10/2019] [Accepted: 06/16/2019] [Indexed: 06/09/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Cola nitida is amongst the evergreen plants native to West Africa used in the treatment of various ailments including diabetes. AIM OF THE STUDY This study aims to investigate the antidiabetic effects of the hot water extract of C. nitida seeds in type 2 diabetic rats. METHODS Type 2 diabetic rats were orally administered with low (150 mg/kg bw) and high (300 mg/kg bw) doses of the hot water extract for 6 wk and thereafter, blood glucose, insulin level, lipid profile, pancreatic β-cell function, perfusion and morphology, redox imbalance, glycolytic and cholinergic enzymes, as well as of caspase-3 and Nrf2 expressions were measured. RESULTS Treatment with the extract led to significant depletion of blood glucose, serum triglycerides, LDL-cholesterol, fructosamine, ALT, and uric acids, while elevating serum insulin and HDL-cholesterol levels. The infusion also significantly (p < 0.05) elevated GSH level, SOD, catalase, α-amylase, and ATPase activities, with concomitant depletion of myeloperoxidase enzyme activity, and NO and MDA levels in the serum and pancreas. Significantly (p < 0.05) improved pancreatic β-cell function and morphology were observed in rats treated with C. nitida, with restored pancreatic capillary networks. C. nitida inhibited the activities of glycogen phosphorylase, fructose 1,6 biphosphatase, glucose 6 phosphatase, and acetylcholinesterase while downregulated the Nrf2 expression. NMR analysis of the extract revealed the presence of caffeine and theobromine. The molecular docking studies indicated that identified compounds displayed strong molecular interactions with caspase-3 and Nrf2. CONCLUSION These results insinuate the antidiabetic activities of C. nitida hot water extract and may be attributed to the NMR-identified compounds.
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Affiliation(s)
- Ochuko L Erukainure
- Department of Biochemistry, School of Life Sciences, University of KwaZulu-Natal, (Westville Campus), Durban, 4000, South Africa; Nutrition and Toxicology Division, Federal Institute of Industrial Research, Lagos, Nigeria
| | - Olakunle Sanni
- Department of Biochemistry, School of Life Sciences, University of KwaZulu-Natal, (Westville Campus), Durban, 4000, South Africa
| | | | - Collins U Ibeji
- Department of Pure and Industrial Chemistry, Faculty of Physical Sciences, University of Nigeria, Nsukka, 410001, Nigeria
| | - Chika I Chukwuma
- Department of Biochemistry, School of Life Sciences, University of KwaZulu-Natal, (Westville Campus), Durban, 4000, South Africa; Department of Health Sciences, Faculty of Health and Environmental Sciences, Central University of Technology, Bloemfontein, South Africa
| | - Md Shahidul Islam
- Department of Biochemistry, School of Life Sciences, University of KwaZulu-Natal, (Westville Campus), Durban, 4000, South Africa.
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Wang L, Wang L, Zhang N, Li M, Li Z. Glucose metabolic effects of oat noodles with different processing in type 2 diabetic mice. J Cereal Sci 2019. [DOI: 10.1016/j.jcs.2019.05.020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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18
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Kawabata K, Kanmura S, Morinaga Y, Tanaka A, Makino T, Fujita T, Arima S, Sasaki F, Nasu Y, Tanoue S, Hashimoto S, Ido A. A high‑fructose diet induces epithelial barrier dysfunction and exacerbates the severity of dextran sulfate sodium‑induced colitis. Int J Mol Med 2018; 43:1487-1496. [PMID: 30628636 DOI: 10.3892/ijmm.2018.4040] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Accepted: 11/19/2018] [Indexed: 11/06/2022] Open
Abstract
Excessive fructose intake is a risk factor for gut symptoms in patients with inflammatory bowel disease, however, its effect on the intestinal tract has not been evaluated previously. The present study investigated the impact of a high‑fructose diet (HFD) on intestinal barrier function in mice with experimental colitis. C57/BL6 mice were provided with either a HFD or control diet and either plain drinking water or water containing 1% dextran sulfate sodium (DSS) for 2 weeks. The disease activity index (DAI), pathological scores and expression of inflammatory cytokines were compared among the groups, and the proportions of fecal bacteria in the colon were analyzed. The body weight and colon length were significantly decreased, and the DAI and pathological scores were significantly increased in the DSS/HFD‑treated mice compared with the non‑DSS‑treated and control diet mice. Regarding the expression of inflammatory cytokines, the levels of interleukin (IL)‑6, IL‑1β and tumor necrosis factor‑α were significantly increased, and the expression of the tight junction protein occludin was significantly decreased in the DSS/HFD‑treated mice. The total bacterial count was increased in the HFD mice. Taken together, these results indicate that an HFD resulted in the deterioration of intestinal barrier function and increased susceptibility to DSS‑induced colitis.
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Affiliation(s)
- Katsuto Kawabata
- Digestive and Lifestyle Diseases, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima 890‑8544, Japan
| | - Shuji Kanmura
- Digestive and Lifestyle Diseases, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima 890‑8544, Japan
| | - Yuko Morinaga
- Digestive and Lifestyle Diseases, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima 890‑8544, Japan
| | - Akihito Tanaka
- Digestive and Lifestyle Diseases, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima 890‑8544, Japan
| | - Tomoaki Makino
- Digestive and Lifestyle Diseases, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima 890‑8544, Japan
| | - Toshihiro Fujita
- Digestive and Lifestyle Diseases, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima 890‑8544, Japan
| | - Shiho Arima
- Digestive and Lifestyle Diseases, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima 890‑8544, Japan
| | - Fumisato Sasaki
- Digestive and Lifestyle Diseases, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima 890‑8544, Japan
| | - Yuichirou Nasu
- Digestive and Lifestyle Diseases, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima 890‑8544, Japan
| | - Shiroh Tanoue
- Digestive and Lifestyle Diseases, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima 890‑8544, Japan
| | - Shinichi Hashimoto
- Digestive and Lifestyle Diseases, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima 890‑8544, Japan
| | - Akio Ido
- Digestive and Lifestyle Diseases, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima 890‑8544, Japan
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Sun H, Ma X, Zhang S, Zhao D, Liu X. Resistant starch produces antidiabetic effects by enhancing glucose metabolism and ameliorating pancreatic dysfunction in type 2 diabetic rats. Int J Biol Macromol 2018; 110:276-284. [DOI: 10.1016/j.ijbiomac.2017.11.162] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2017] [Revised: 11/10/2017] [Accepted: 11/25/2017] [Indexed: 12/19/2022]
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Ajiboye BO, Adeleke Ojo O, Adeyonu O, Imiere O, Emmanuel Oyinloye B, Ogunmodede O. Ameliorative Activity of Ethanolic Extract of Artocarpus heterophyllus Stem Bark on Alloxan-induced Diabetic Rats. Adv Pharm Bull 2018; 8:141-147. [PMID: 29670849 PMCID: PMC5899783 DOI: 10.15171/apb.2018.017] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2016] [Revised: 03/05/2018] [Accepted: 03/07/2018] [Indexed: 01/10/2023] Open
Abstract
Purpose: Diabetes mellitus is one of the major endocrine disorders, characterized by impaired insulin action and deficiency. Traditionally, Artocarpus heterophyllus stem bark has been reputably used in the management of diabetes mellitus and its complications. The present study evaluates the ameliorative activity of ethanol extract of Artocarpus heterophyllus stem bark in alloxan-induced diabetic rats. Methods: Diabetes mellitus was induced by single intraperitoneal injection of 150 mg/kg body weight of alloxan and the animals were orally administered with 50, 100 and 150 mg/kg body weight ethanol extract of Artocarpus heterophyllus stem bark once daily for 21 days. Results: At the end of the intervention, diabetic control rats showed significant (p<0.05) weight reduction, abnormal haematological parameters, high serum lipids (except high density lipoprotein) concentrations, increased creatinine, bilirubin and urea levels with decreased in albumin level when compared with non-diabetic control rats. All these alterations were reverted to normal after administered with different doses of ethanol extract of Artocarpus heterophyllus stem bark most especially at 150 mg/kg body weight which exhibited no significant (p>0.05) different with non-diabetic rats. Conclusion: The results suggest that ethanol extract of Artocarpus heterophyllus stem bark may be useful in ameliorating complications associated with diabetes mellitus patients.
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Affiliation(s)
- Basiru Olaitan Ajiboye
- Department of Chemical Sciences, Biochemistry Programme, Afe Babalola University, Ado-Ekiti, Ekiti State, Nigeria
| | - Oluwafemi Adeleke Ojo
- Department of Chemical Sciences, Biochemistry Programme, Afe Babalola University, Ado-Ekiti, Ekiti State, Nigeria
| | - Oluwatosin Adeyonu
- Department of Chemical Sciences, Biochemistry Programme, Afe Babalola University, Ado-Ekiti, Ekiti State, Nigeria
| | - Oluwatosin Imiere
- Department of Chemical Sciences, Biochemistry Programme, Afe Babalola University, Ado-Ekiti, Ekiti State, Nigeria
| | - Babatunji Emmanuel Oyinloye
- Department of Chemical Sciences, Biochemistry Programme, Afe Babalola University, Ado-Ekiti, Ekiti State, Nigeria
| | - Oluwafemi Ogunmodede
- Department of Chemical Sciences, Industrial Chemistry Programme, Afe Babalola University, Ado-Ekiti, Ekiti State, Nigeria
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Mohammed A, Gbonjubola VA, Koorbanally NA, Islam MS. Inhibition of key enzymes linked to type 2 diabetes by compounds isolated from Aframomum melegueta fruit. PHARMACEUTICAL BIOLOGY 2017; 55:1010-1016. [PMID: 28176546 PMCID: PMC6130490 DOI: 10.1080/13880209.2017.1286358] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2016] [Revised: 01/17/2017] [Accepted: 01/20/2017] [Indexed: 05/28/2023]
Abstract
CONTEXT The use of Aframomum melegueta K. Schum. (Zingiberaceae) fruit for treatment of diabetes has recently been established in Nigeria. However, compounds responsible for the antidiabetic action have not been identified. OBJECTIVE The present study carried out the bioassay-guided isolation of possible bioactive compounds responsible for the antidiabetic action of A. melegueta fruit. MATERIALS AND METHODS The A. melegueta fruit was sequentially extracted using ethyl acetate (EtOAc), ethanol and water, and the most active extract (EtOAc) was subjected to column chromatography on a silica gel column using solvent gradient systems of hexane (HEX):EtOAc and EtOAc:MeOH and the isolation of compounds was guided by α-glycosidase and α-amylase inhibitory activities at various concentrations (30-240 μg/mL). RESULTS According to the results, 3 arylalkanes, 6-paradol (1), 6-shogaol (2) and 6-gingerol (3) and a pentacyclic triterpene, oleanolic acid (4) were isolated from A. melegueta fruit. All the compounds exhibited inhibitory effects against α-amylase and α-glucosidase. 6-Gingerol (3) and oleanolic acid (4) showed higher inhibitory activity against α-amylase (IC50: 6-gingerol: 81.78 ± 7.79 μM; oleanolic acid: 91.72 ± 1.63 μM) and α-glucosidase (IC50: 6-gingerol: 21.55 ± 0.45 μM; oleanolic acid: 17.35 ± 0.88 μM) compared to the standard drug, acarbose and other isolated compounds. The kinetics of the enzyme action of the compounds showed a noncompetitive mode of inhibition. CONCLUSION The data of this study suggest that the 6-gingerol (3) and oleanolic acid (4) showed higher α-amylase and α-glucosidase inhibitory action and therefore could be responsible for the antidiabetic activity of A. melegueta fruit.
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Affiliation(s)
- Aminu Mohammed
- Department of Biochemistry, School of Life Sciences, University of KwaZulu-Natal, Durban, South Africa
- Department of Biochemistry, Faculty of Science, Ahmadu Bello University, Zaria, Nigeria
| | | | - Neil Anthony Koorbanally
- Department of Chemistry, School of Chemistry and Physics, University of KwaZulu-Natal, Durban, South Africa
| | - Md. Shahidul Islam
- Department of Biochemistry, School of Life Sciences, University of KwaZulu-Natal, Durban, South Africa
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Ogbunugafor HA, Ugochukwu CG, Kyrian-Ogbonna AE. The role of spices in nutrition and health: a review of three popular spices used in Southern Nigeria. FOOD QUALITY AND SAFETY 2017. [DOI: 10.1093/fqsafe/fyx020] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Hattori H, Yamauchi K, Onwona-Agyeman S, Mitsunaga T. Effect of Grains of Paradise (GP) Extract Intake on Obesity and Sympathetic Nerve Activity. ACTA ACUST UNITED AC 2017. [DOI: 10.4236/ajps.2017.82007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Ma M, Mu T. Anti-diabetic effects of soluble and insoluble dietary fibre from deoiled cumin in low-dose streptozotocin and high glucose-fat diet-induced type 2 diabetic rats. J Funct Foods 2016. [DOI: 10.1016/j.jff.2016.05.011] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
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