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Abid A, Wafa Z, Belguidoum M, Touahria T, Mekhadmi NE, Dekmouche M, Bechki L, Bireche K, Boussebaa W, Al-Farga A. Exploring the anti-inflammatory, sedative, antidiabetic, and antioxidant potential in in-vitro and in-vivo models and phenolic profiling of Atractylis aristata Batt. JOURNAL OF ETHNOPHARMACOLOGY 2024; 330:118252. [PMID: 38663782 DOI: 10.1016/j.jep.2024.118252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 04/17/2024] [Accepted: 04/22/2024] [Indexed: 04/30/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Atractylis aristata batt., as an endemic plant from the Asteraceae family, holds a significant position in the Ahaggar region of southern Algeria's traditional medicine. The aerial parts of Atractylis aristata was used to cure inflammation, fever, and stomach disorders. AIM OF THE STUDY The objective of the present investigation was to ascertain the overall bioactive components and phytochemical components and examine the antioxidant, antidiabetic, anti-inflammatory, acute toxicity, and sedative properties of the crude extract obtained from the aerial portions of Atractylis aristata (AaME). MATERIALS AND METHODS The AaME's antioxidant activity was assessed by the use of pyrogallol autoxidation, (1,1 diphenyl-2-picrylhydrazyl) (DPPH), 2,2'-azino-bis-(3-ethylbenzothiazoline-6-sulfonic acid (ABTS), and reducing power (RP) techniques. 1 mg/mL of AaME was used to evaluate the antidiabetic activity by applying the enzyme α-amylase inhibitory power test. At the same time, the bovine serum albumin (BSA) denaturation method was employed to quantify the in vitro anti-inflammatory activity at different concentrations (1.5625, 0.78125, 0.390625, 0.1953125 and 0.09765625 mg/mL). In contrast, following the Organization for Economic Co-operation and Development (OECD) guideline No. 423, which covers acute oral toxicity testing protocols, the limit dosage test was employed to assess in vivo acute toxicity. At the dose of 0.08 mg/mL, the carrageenan-induced paw edema approach was used to assess the anti-inflammatory efficacy in vivo, and the sedative activity was carried out at the dose of 0.08 mg/mL using the measurement of the locomotor method. Different bioactive compounds were identified within AaME using LC-MS/MS and HPLC-UV analysis. RESULTS The acute toxicity study showed no fatalities or noticeable neurobehavioral consequences at the limit test; this led to their classification in Globally Harmonized System (GHS) category Five, as the OECD guideline No 423 recommended. At a concentration of 0.08 mg/mL (2000 mg/kg), AaME showed apparent inhibition of paw edema and a significant (p = 0.01227) reduction in locomotor activity compared to the control animals. Our findings showed that AaME exhibited considerable antioxidant (IC50 = 0.040 ± 0.003 mg/mL (DPPH), IC50 = 0.005 ± 5.77 × 10-5 mg/mL (ABTS), AEAC = 91.15 ± 3.921 mg (RP) and IR% = 23.81 ± 4.276 (Inhibition rate of pyrogallol) and rebuts antidiabetic activities (I% = 57.6241% ± 2.81772). Our findings revealed that the maximum percentage of BSA inhibition (70.84 ± 0.10%) was obtained at 1.562.5 mg/mL. Thus, the AaME phytochemical profile performed using phytochemical screening, HPLC-UV, and LC-MS/MS analysis demonstrated that A. aristata can be a valuable source of chemicals with biological activity for pharmaceutical manufacturers. CONCLUSION The phytochemical profiling, determined through HPLC-UV and LC-MS/MS applications, reveals this plant's therapeutic value. The aerial parts of Atractylis aristata contain bioactive molecules such as gallic acid, ascorbic acid, and quercetin, contributing to its significant antioxidant capabilities. Furthermore, identifying alizarin, the active compound responsible for its anti-inflammatory properties, could provide evidence supporting the anti-inflammatory capabilities of this subspecies.
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Affiliation(s)
- Asma Abid
- Laboratory of Valorization and Promotion of Saharan Resources (VPRS), Faculty of Mathematics and Matter Sciences, University of Ouargla, Road of Ghardaia, 30000, Ouargla, Algeria
| | - Zahnit Wafa
- Laboratory of Valorization and Promotion of Saharan Resources (VPRS), Faculty of Mathematics and Matter Sciences, University of Ouargla, Road of Ghardaia, 30000, Ouargla, Algeria.
| | - Mahdi Belguidoum
- Laboratory of Valorization and Promotion of Saharan Resources (VPRS), Faculty of Mathematics and Matter Sciences, University of Ouargla, Road of Ghardaia, 30000, Ouargla, Algeria; Department of Agronomy, Faculty of Nature and Life Sciences and Earth Sciences, University of Ghardaia, 47000, Ghardaïa, Algeria
| | - Tatou Touahria
- Laboratory of Valorization and Promotion of Saharan Resources (VPRS), Faculty of Mathematics and Matter Sciences, University of Ouargla, Road of Ghardaia, 30000, Ouargla, Algeria
| | - Nour Elhouda Mekhadmi
- Department of Biology, SNV Faculty, University of Chahid Hamma Lakhdar, El-Oued, Algeria; Laboratory of Biodiversity and Applications of Biotechnology in the Agriculture Field, University of Chahid Hamma Lakhdar, El-Oued, Algeria
| | - Messaouda Dekmouche
- Laboratory of Valorization and Promotion of Saharan Resources (VPRS), Faculty of Mathematics and Matter Sciences, University of Ouargla, Road of Ghardaia, 30000, Ouargla, Algeria
| | - Lazhar Bechki
- Laboratory of Valorization and Promotion of Saharan Resources (VPRS), Faculty of Mathematics and Matter Sciences, University of Ouargla, Road of Ghardaia, 30000, Ouargla, Algeria
| | - Kamilia Bireche
- Laboratory of Valorization and Promotion of Saharan Resources (VPRS), Faculty of Mathematics and Matter Sciences, University of Ouargla, Road of Ghardaia, 30000, Ouargla, Algeria
| | - Walid Boussebaa
- Laboratory of Valorization and Promotion of Saharan Resources (VPRS), Faculty of Mathematics and Matter Sciences, University of Ouargla, Road of Ghardaia, 30000, Ouargla, Algeria; Scientific and Technical Research Center in Physico-Chemical Analysis (CRAPC), Tipaza, Algeria
| | - Ammar Al-Farga
- Department of Biochemistry, Faculty of Science University of Jeddah, Saudi Arabia
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Khator R, Monga V. Recent advances in the synthesis and medicinal perspective of pyrazole-based α-amylase inhibitors as antidiabetic agents. Future Med Chem 2024. [PMID: 38230638 DOI: 10.4155/fmc-2023-0285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2024] Open
Abstract
Diabetes is a serious health threat across the globe, claiming millions of lives worldwide. Among the various strategies employed, inhibition of α-amylase is a therapeutic protocol for the management of Type 2 diabetes mellitus. α-Amylase is a crucial enzyme involved in the breakdown of dietary starch into simpler units. However, the clinically used α-amylase inhibitors have various drawbacks. Therefore, design and development of novel α-amylase inhibitors have gained significant attention. The pyrazole motif has been identified as a versatile scaffold in medicinal chemistry, and recent studies have led to the identification of various pyrazole-based α-amylase inhibitors. This review compiles therapeutic implications of pyrazole-appended α-amylase inhibitors; their synthesis, biological activities, structure-activity relationships and molecular docking studies are discussed.
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Affiliation(s)
- Rakesh Khator
- Drug Design & Molecular Synthesis Laboratory, Department of Pharmaceutical Sciences & Natural Products, Central University of Punjab, VPO-Ghudda, 151401, Bathinda, Punjab, India
| | - Vikramdeep Monga
- Drug Design & Molecular Synthesis Laboratory, Department of Pharmaceutical Sciences & Natural Products, Central University of Punjab, VPO-Ghudda, 151401, Bathinda, Punjab, India
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Singh A, Singh K, Kaur K, Sharma A, Mohana P, Prajapati J, Kaur U, Goswami D, Arora S, Chadha R, Bedi PMS. Discovery of triazole tethered thymol/carvacrol-coumarin hybrids as new class of α-glucosidase inhibitors with potent in vivo antihyperglycemic activities. Eur J Med Chem 2024; 263:115948. [PMID: 37984299 DOI: 10.1016/j.ejmech.2023.115948] [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: 08/05/2023] [Revised: 10/04/2023] [Accepted: 11/08/2023] [Indexed: 11/22/2023]
Abstract
Keeping in view the inhibitory potential of monoterpenes thymol and carvacrol as well as coumarin nucleus against α-glucosidase, novel series of thymol/carvacrol-coumarin hybrids was designed, synthesized and evaluated for α-glucosidase inhibitory potential. Among the series of hybrid molecules, AS14 with IC50 value of 4.32 ± 0.11 μM was selective α-glucosidase inhibitor over α-amylase (IC50 = 37.36 ± 0.84 μM). AS14 was non-toxic toward mouse normal fibroblast cells (L929: IC50 > 100 μM). Molecular docking and dynamic simulation studies confirmed desired interactions of AS14 with α-glucosidase responsible for the inhibition of its catalysis capabilities. Acute oral toxicity study confirmed AS14 as safer molecule for in vivo pharmacological investigations with LD50 value of 300 mg/kg. AS14 also showed acute hypoglycaemic effects [reduction in blood glucose levels at 1 h of administration in maltose loading test (at 10 and 20 mg/kg by 62.65 % and 70.12 %) and sucrose loading test (at 10 and 20 mg/kg by 59.65 % and 60.23 %), respectively] as well as long term (28 days) fasting blood glucose reduction (At day 28: 10 mg/kg = 54.69 % and 20 mg/kg = 62.23 % reduction in fasting blood glucose levels) capabilities in streptozotocin induced diabetic rats. Overall study represents, AS14 as potential α-glucosidase inhibitor with adequate efficacy and safety profile and act as an effective hit lead for the further development of potent and safer α-glucosidase inhibitors for the management of postprandial hyperglycemia in diabetic patients.
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Affiliation(s)
- Atamjit Singh
- Department of Pharmaceutical Sciences, Guru Nanak Dev University, Amritsar, Punjab, 143005, India.
| | - Karanvir Singh
- Department of Pharmaceutical Sciences, Guru Nanak Dev University, Amritsar, Punjab, 143005, India
| | - Kirandeep Kaur
- Department of Pharmaceutical Sciences, Guru Nanak Dev University, Amritsar, Punjab, 143005, India
| | - Aman Sharma
- Department of Pharmaceutical Sciences, Guru Nanak Dev University, Amritsar, Punjab, 143005, India
| | - Pallvi Mohana
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, Punjab, 143005, India
| | - Jignesh Prajapati
- Department of Microbiology & Biotechnology, University School of Sciences, Gujrat University, Ahmedabad, Gujrat, 380009, India
| | - Uttam Kaur
- University School of Business Management, Chandigarh University, Gharuan, 140413, India
| | - Dweipayan Goswami
- Department of Microbiology & Biotechnology, University School of Sciences, Gujrat University, Ahmedabad, Gujrat, 380009, India
| | - Saroj Arora
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, Punjab, 143005, India
| | - Renu Chadha
- University Institute of Pharmaceutical Sciences, Punjab University, Chandigarh, 160014, India
| | - Preet Mohinder Singh Bedi
- Department of Pharmaceutical Sciences, Guru Nanak Dev University, Amritsar, Punjab, 143005, India; Drug and Pollution Testing Laboratory, Guru Nanak Dev University, Amritsar, Punjab, 143005, India.
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Tegegne BA, Yihunie W, Aschale Y, Belew H, Getachew M. Validation of Blood Glucose and Lipid-Lowering Effect of Solvent Fractions of the Crinum Abyssinicum Shoot Tips in Streptozotocin-Induced Diabetic Mice. GLOBAL ADVANCES IN INTEGRATIVE MEDICINE AND HEALTH 2024; 13:27536130231225464. [PMID: 38226326 PMCID: PMC10788077 DOI: 10.1177/27536130231225464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 12/02/2023] [Accepted: 12/20/2023] [Indexed: 01/17/2024]
Abstract
Background Diabetes mellitus prevalence has reached epidemic levels despite the existence of contemporary treatments. People thus started looking at the possible therapeutic value of natural therapies. Crushed shoot tips of Crinum abyssinicum (Amaryllidaceae) are mixed with water in Ethiopia to treat diabetes, yet this practice is not well supported by science. Objective In this experiment, mice models were used to verify the blood sugar and lipid-lowering benefits of solvent fractions of C. abyssinicum shoot tips. Materials and Methods In a single-dose treated Streptozotocin (STZ)-induced diabetic model, mice were randomly grouped into eleven categories which include diabetic negative control, diabetic positive control, and 9 diabetic treatment groups. In repeated daily doses treated STZ-induced model, Mice were divided into 6 groups which included normal and diabetic negative control (TW80), diabetic positive control (5 mg/kg glibenclamide), and three diabetic treatment groups 100, 200, and 400 mg/kg). Finally, blood glucose, lipid level, and body weight were examined. Results In the single-dose treated diabetic model, there was a significant blood glucose reduction at 200 and 400 mg/kg doses of aqueous fraction and glibenclamide starting from the sixth-hour post-administration unlike ethyl acetate and chloroform fraction compared to baseline and negative control. In repeated daily dose-treated diabetic mice, all three doses (100, 200, and 400 mg/kg of aqueous fraction) resulted in a substantial reduction (P < .001) in blood glucose compared to baseline and negative control on the seventh day and 14th day. Besides the AQF shows improvement in lipid levels and body weight parameters. Conclusion The results of the study demonstrated that C. abyssinicum shoot tip fractions have the greatest potential to lower blood sugar and lipid levels, supporting conventional claims for the treatment of diabetes.
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Affiliation(s)
| | - Wubetu Yihunie
- Department of Pharmacy, Debre Markos University, Debre Markos, Ethiopia
| | - Yibeltal Aschale
- Department of Medical Laboratory, Debre Markos University, Debre Markos, Ethiopia
| | - Habtamu Belew
- Department of Medical Laboratory, Debre Markos University, Debre Markos, Ethiopia
| | - Melese Getachew
- Department of Pharmacy, Debre Markos University, Debre Markos, Ethiopia
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Mela DJ, Boers HM, Kadam T, Hiemstra H, Kalathil R, Seijen Ten Hoorn JWM. Effect of mulberry fruit extract on post-prandial glycaemic and insulinemic responses to different rice types: a randomised trial in healthy adults. Br J Nutr 2023; 130:2088-2094. [PMID: 37272629 DOI: 10.1017/s0007114523001319] [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] [Indexed: 06/06/2023]
Abstract
We previously reported that the addition of a specified mulberry fruit extract (MFE) to rice consistently reduces post-prandial glycaemic (PPG) and post-prandial insulinemic (PPI) responses. This research tested whether this effect generalises to a broad range of rice types, reflecting the wide variation in rice characteristics known to influence glycaemic responses. In a randomised, balanced, partial factorial crossover design, Sona Masoori (SM), Bora Saul (BS), Gobindobogh (Gb) and Banskati (Bn) rices were tested with and without 0·37 g MFE. Healthy, normal-weight Indian adults (N 120) each consumed four of the eight possible boiled rice meals, all containing about 50 g available carbohydrate. The primary outcome was the effect of MFE on PPG, expressed as the percentage change in the positive, incremental AUC over 2 h. The mean effect of MFE on PPG for all rice types combined was -11·4 % (P < 0·003). The reduction in PPG was in a qualitatively similar range for all rice types (-9·8 to -15·1 %), and this was statistically significant for Bn. MFE also reduced the corresponding PPI response to all rice types combined by a mean of 10·1 % (P < 0·001; range -6·1 to -13·4 %), and the reduction in PPI was statistically significant for SM, Gb and BS. In conclusion, addition of 0·37 g MFE modestly reduced PPG and PPI responses to rices in general, and the effects were statistically significant for specific rice types.
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Kuzmanović Nedeljković S, Radan M, Ćujić Nikolić N, Mutavski Z, Krgović N, Marković S, Stević T, Živković J, Šavikin K. Microencapsulated Bilberry and Chokeberry Leaf Extracts with Potential Health Benefits. PLANTS (BASEL, SWITZERLAND) 2023; 12:3979. [PMID: 38068615 PMCID: PMC10707773 DOI: 10.3390/plants12233979] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 11/20/2023] [Accepted: 11/21/2023] [Indexed: 04/12/2024]
Abstract
The aim of the research was to develop microencapsulated powders of bilberry and chokeberry extracts via the spray drying technique. Two biopolymers, pectin alone and in combination with HP-β-CD, were used to preserve the antioxidant, hypoglycemic, photoprotective, and antimicrobial bioactivity of the berry leaf extracts. Moreover, the formed powders were characterized in terms of technological, chemical, and several biological properties. The obtained micro-sized powders (mean average particle diameter from 3.83 to 5.94 µm) demonstrated a process yield of up to 73%. The added biopolymers improved the flowability and cohesive properties of the powders and increased their thermal stability to 170 °C. The total content of polyphenolics in the powders ranged from 323.35 to 367.76 mg GAE/g DW for bilberry and from 186.85 to 227.59 mg GAE/g DW for chokeberry powders; meanwhile, chlorogenic acid was the predominant compound in powders. All samples showed stronger α-glucosidase inhibitory activity (IC50 values ranged from 5.00 to 19.59 µg/mL) compared with the reference standard. The study confirmed that spray drying is a suitable method for the preservation of the polyphenolic-rich extracts, while the addition of carriers has a positive effect on the improvement of microencapsulated powders' properties.
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Affiliation(s)
| | - Milica Radan
- Institute for Medicinal Plants Research Dr Josif Pančić, Tadeuša Košćuška 1, 11000 Belgrade, Serbia
| | - Nada Ćujić Nikolić
- Institute for Medicinal Plants Research Dr Josif Pančić, Tadeuša Košćuška 1, 11000 Belgrade, Serbia
| | - Zorana Mutavski
- Institute for Medicinal Plants Research Dr Josif Pančić, Tadeuša Košćuška 1, 11000 Belgrade, Serbia
| | - Nemanja Krgović
- Institute for Medicinal Plants Research Dr Josif Pančić, Tadeuša Košćuška 1, 11000 Belgrade, Serbia
| | - Smilja Marković
- Institute of Technical Sciences of SASA, Knez Mihailova 35/IV, 11000 Belgrade, Serbia;
| | - Tatjana Stević
- Institute for Medicinal Plants Research Dr Josif Pančić, Tadeuša Košćuška 1, 11000 Belgrade, Serbia
| | - Jelena Živković
- Institute for Medicinal Plants Research Dr Josif Pančić, Tadeuša Košćuška 1, 11000 Belgrade, Serbia
| | - Katarina Šavikin
- Institute for Medicinal Plants Research Dr Josif Pančić, Tadeuša Košćuška 1, 11000 Belgrade, Serbia
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Shaukat A, Zaidi A, Anwar H, Kizilbash N. Mechanism of the antidiabetic action of Nigella sativa and Thymoquinone: a review. Front Nutr 2023; 10:1126272. [PMID: 37818339 PMCID: PMC10561288 DOI: 10.3389/fnut.2023.1126272] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Accepted: 07/27/2023] [Indexed: 10/12/2023] Open
Abstract
Introduction Long used in traditional medicine, Nigella sativa (NS; Ranunculaceae) has shown significant efficacy as an adjuvant therapy for diabetes mellitus (DM) management by improving glucose tolerance, decreasing hepatic gluconeogenesis, normalizing blood sugar and lipid imbalance, and stimulating insulin secretion from pancreatic cells. In this review, the pharmacological and pharmacokinetic properties of NS as a herbal diabetes medication are examined in depth, demonstrating how it counteracts oxidative stress and the onset and progression of DM. Methods This literature review drew on databases such as Google Scholar and PubMed and various gray literature sources using search terms like the etiology of diabetes, conventional versus herbal therapy, subclinical pharmacology, pharmacokinetics, physiology, behavior, and clinical outcomes. Results The efficiency and safety of NS in diabetes, notably its thymoquinone (TQ) rich volatile oil, have drawn great attention from researchers in recent years; the specific therapeutic dose has eluded determination so far. TQ has anti-diabetic, anti-inflammatory, antioxidant, and immunomodulatory properties but has not proved druggable. DM's intimate link with oxidative stress, makes NS therapy relevant since it is a potent antioxidant that energizes the cell's endogenous arsenal of antioxidant enzymes. NS attenuates insulin resistance, enhances insulin signaling, suppresses cyclooxygenase-2, upregulates insulin-like growth factor-1, and prevents endothelial dysfunction in DM. Conclusion The interaction of NS with mainstream drugs, gut microbiota, and probiotics opens new possibilities for innovative therapies. Despite its strong potential to treat DM, NS and TQ must be examined in more inclusive clinical studies targeting underrepresented patient populations.
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Affiliation(s)
- Arslan Shaukat
- Department of Physiology, Government College University - GCU, Faisalabad, Punjab, Pakistan
| | - Arsalan Zaidi
- National Probiotic Laboratory, National Institute for Biotechnology and Genetic Engineering College - NIBGE-C, Faisalabad, Punjab, Pakistan
- Pakistan Institute of Engineering and Applied Sciences - PIEAS, Nilore, Islamabad, Pakistan
| | - Haseeb Anwar
- Department of Physiology, Government College University - GCU, Faisalabad, Punjab, Pakistan
| | - Nadeem Kizilbash
- Department Medical Laboratory Technology, Faculty of Applied Medical Sciences, Northern Border University, Arar, Saudi Arabia
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Dose-response efficacy of mulberry fruit extract for reducing post-prandial blood glucose and insulin responses: randomised trial evidence in healthy adults. Br J Nutr 2023; 129:771-778. [PMID: 35272722 DOI: 10.1017/s0007114522000824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Extracts of mulberry have been shown to reduce post-prandial glucose (PPG) and insulin (PPI) responses, but reliability of these effects and required doses and specifications are unclear. We previously found that 1·5 g of a specified mulberry fruit extract (MFE) significantly reduced PPG and PPI responses to 50 g carbohydrate as rice porridge, with no indications of intolerance. The trials reported here aimed to replicate that work and assess the efficacy of lower MFE doses, using boiled rice as the carbohydrate source. Two separate randomised controlled intervention studies were carried out with healthy Indian males and females aged 20-50 years (n 84 per trial), with PPG area under the curve over 2 h as the primary outcome. Trial 1 used doses of 0, 0·37, 0·75, 1·12 and 1·5 g MFE in boiled rice and 0 or 1·5 g MFE in rice porridge. Trial 2 used doses of 0, 0·04, 0·12, 0·37 g MFE in boiled rice. In trial 1, relative to control, all MFE doses significantly decreased PPG (-27·2 to -22·9 %; all P ≤ 0·02) and PPI (-34·6 to -14·0 %, all P < 0·01). Breath hydrogen was significantly increased only at 1·5 g MFE (in rice porridge), and self-reported gastrointestinal symptoms were uniformly low. In trial 2, only 0·37 g MFE significantly affected PPG (-20·4 %, P = 0·002) and PPI (-17·0 %, P < 0·001). Together, these trials show that MFE in doses as low as 0·37 g can reliably reduce PPG and PPI responses to a carbohydrate-rich meal, with no apparent adverse effects.
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MD Simulation Studies for Selective Phytochemicals as Potential Inhibitors against Major Biological Targets of Diabetic Nephropathy. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27154980. [PMID: 35956932 PMCID: PMC9370454 DOI: 10.3390/molecules27154980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 08/01/2022] [Accepted: 08/01/2022] [Indexed: 11/30/2022]
Abstract
Diabetes is emerging as an epidemic and is becoming a public health concern worldwide. Diabetic nephropathy is one of the serious complications of diabetes, and about 40% of individuals with diabetes develop diabetic nephropathy. The consistent feature of diabetes and its associated nephropathy is hyperglycemia, and in some cases, hyperamylinemia. Currently, the treatment includes the use of medication for blood pressure control, sugar control, and cholesterol control, and in the later stage requires dialysis and kidney transplantation, making the management of this complication very difficult. Bioactive compounds, herbal medicines, and extracts are extensively used in the treatment and prevention of several diseases, and some are reported to be efficacious in diabetes too. Therefore, in this study, we tried to identify the therapeutic potential of phytochemicals used in in silico docking and molecular dynamic simulation studies using a library of 5284 phytochemicals against the two potential targets of type 2 diabetes-associated nephropathy. We identified two phytochemicals (i.e., gentisic acid and michelalbine) that target human amylin peptide and dipeptidyl peptidase-4, respectively, with good binding affinity. These phytochemicals can be further evaluated using in vitro and in vivo studies for their anti-hyperglycemia and anti-hyperamylinemia effects.
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Ghanbari M, Lamuki MS, Habibi E, Sadeghimahalli F. Artemisia annua L. Extracts Improved Insulin Resistance via Changing Adiponectin, Leptin and Resistin Production in HFD/STZ Diabetic Mice. J Pharmacopuncture 2022; 25:130-137. [PMID: 35837139 PMCID: PMC9240412 DOI: 10.3831/kpi.2022.25.2.130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 02/17/2022] [Accepted: 04/04/2022] [Indexed: 11/17/2022] Open
Abstract
Objectives Insulin resistance (IR) is major cause of type 2 diabetes (T2D), and adipokines (e.g., adiponectin, leptin, and resistin) play an important role in insulin sensitivity. Medicinal plants are frequently used for T2D treatment. This study investigates the effect of Artemisia annua L. (AA) extracts on adipokines in mice with high-fat-diet (HFD)/streptozotocin (STZ)-induced T2D. Methods We divided 60 mice into 12 groups (n = 5 per group) control, untreated T2D, treated T2D, and 9 other groups. T2D was induced in all groups, except controls, by 8 weeks of HFD and STZ injection. The treated T2D group was administered 250 mg/kg of metformin (MTF), while the nine other groups were treated with 100, 200, and 400 mg/kg of hot-water extract (HWE), cold-water extract (CWE), and alcoholic extract (ALE) of AA (daily oral gavage) along with 250 mg/kg of MTF for 4 weeks. The intraperitoneal glucose tolerance test (IPGTT) was performed, and the homeostasis model assessment of adiponectin (HOMA-AD) index and blood glucose and serum insulin, leptin, adiponectin, and resistin levels were measured. Results Similar to MTF, all three types of AA extracts (HWEs, CWEs, and ALEs) significantly (p < 0.0001) decreased the area under the curve (AUC) of glucose during the IPGTT, the HOMA-AD index, blood glucose levels, and serum insulin, leptin, and resistin levels and increased serum adiponectin levels in the MTF group compared to the T2D group (p < 0.0001). The HWEs affected adipokine release, while the CWEs and ALEs decreased leptin and resistin production. Conclusion Water and alcoholic AA extracts have an antihyperglycemic and antihyperinsulinemic effect on HFD/STZ diabetic mice. In addition, they decrease IR by reducing leptin and resistin production and increasing adiponectin secretion from adipocytes.
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Affiliation(s)
- Mahshid Ghanbari
- Department of Toxicology and Pharmacology, Faculty of Pharmacy, Manzandaran University of Medical Sciences, Sari, Iran
| | - Mohammad Shokrzadeh Lamuki
- Department of Toxicology and Pharmacology, Faculty of Pharmacy, Manzandaran University of Medical Sciences, Sari, Iran
- Pharmaceutical Science Research Center, Hemoglobinopathy Institute, Mazandaran University of Medical Sciences, Sari, Iran
| | - Emran Habibi
- Pharmaceutical Science Research Center, Hemoglobinopathy Institute, Mazandaran University of Medical Sciences, Sari, Iran
- Department of Pharmacognosy, Faculty of Pharmacy, Mazandaran University of Medical Sciences, Sari, Iran
| | - Forouzan Sadeghimahalli
- Pharmaceutical Science Research Center, Hemoglobinopathy Institute, Mazandaran University of Medical Sciences, Sari, Iran
- Department of Physiology, School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
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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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Romano M, Garcia-Bournissen F, Piskin D, Rodoplu U, Piskin L, Elzagallaai AA, Tuncer T, Sezer S, Ucuncuoglu D, Honca T, Poddighe D, Yavuz I, Stenvinkel P, Yilmaz MI, Demirkaya E. Anti-Inflammatory, Antioxidant, and Anti-Atherosclerotic Effects of Natural Supplements on Patients with FMF-Related AA Amyloidosis: A Non-Randomized 24-Week Open-Label Interventional Study. Life (Basel) 2022; 12:life12060896. [PMID: 35743929 PMCID: PMC9228597 DOI: 10.3390/life12060896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 06/09/2022] [Accepted: 06/10/2022] [Indexed: 11/16/2022] Open
Abstract
We aimed to evaluate the effect of a combination of natural products on parameters related to inflammation, endothelial dysfunction, and oxidative stress in a cohort of familial Mediterranean fever (FMF) patients with Serum Amyloid A amyloidosis, in a non-randomized, 24-week open-label interventional study. Morinda citrifolia (anti-atherosclerotic-AAL), omega-3 (anti-inflammatory-AIC), and extract with Alaskan blueberry (antioxidant-AOL) were given to patients with FMF-related biopsy-proven AA amyloidosis. Patients were >18 years and had proteinuria (>3500 mg/day) but a normal estimated glomerular filtration rate (eGFR). Arterial flow-mediated dilatation (FMD), carotid intima media thickness (CIMT), and serum biomarkers asymmetric dimethylarginine (ADMA), high sensitivity C-reactive protein (hs-CRP), pentraxin (PTX3), malondialdehyde (MDA), Cu/Zn-superoxide dismutase (Cu/Zn-SOD), and glutathione peroxidase (GSH-Px) were studied at baseline and after 24 weeks of treatment. A total of 67 FMF-related amyloidosis patients (52 male (77.6%); median age 36 years (range 21−66)) were enrolled. At the end of a 24-week treatment period with AAL, AIC, and AOL combination therapy, ADMA, MDA, PTX3, hsCRP, cholesterol, and proteinuria were significantly decreased compared to baseline, while CuZn-SOD, GSH-Px, and FMD levels were significantly increased. Changes in inflammatory markers PTX3, and hsCRP were negatively correlated with FMD change, and positively correlated with decreases in proteinuria, ADMA, MDA, cholesterol, and CIMT. Treatment with AAL, AIC and AOL combination for 24 weeks were significantly associated with reduction in inflammatory markers, improved endothelial functions, and oxidative state. Efficient control of these three mechanisms can have long term cardiovascular and renal benefits for patients with AA amyloidosis.
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Affiliation(s)
- Micol Romano
- Department of Paediatrics, Division of Paediatric Rheumatology, Schulich School of Medicine & Dentistry, University of Western Ontario, London, ON N6A 5W9, Canada; (M.R.); (E.D.)
- Canadian Behcet and Autoinflammatory Disease Center (CAN BE AID), Schulich School of Medicine & Dentistry, University of Western Ontario, London, ON N6A 5W9, Canada;
| | - Facundo Garcia-Bournissen
- Department of Paediatrics, Division of Paediatric Clinical Pharmacology, Schulich School of Medicine & Dentistry, University of Western Ontario, London, ON N6A 5W9, Canada;
- Department of Epidemiology and Biostatistics, Schulich School of Medicine & Dentistry, University of Western Ontario, London, ON N6A 3K7, Canada
| | - David Piskin
- Canadian Behcet and Autoinflammatory Disease Center (CAN BE AID), Schulich School of Medicine & Dentistry, University of Western Ontario, London, ON N6A 5W9, Canada;
- Department of Epidemiology and Biostatistics, Schulich School of Medicine & Dentistry, University of Western Ontario, London, ON N6A 3K7, Canada
| | - Ulkumen Rodoplu
- Emergency Medicine Association of Turkey of All, 35220 Izmir, Turkey;
| | - Lizzy Piskin
- Robarts Research Institute, University of Western Ontario, London, ON N6A 3K7, Canada;
| | - Abdelbaset A. Elzagallaai
- Schulich School of Medicine & Dentistry, Physiology and Pharmacology, University of Western Ontario, London, ON N6A 3K7, Canada;
| | - Tunc Tuncer
- Unit of Biochemistry, Epigenetic Health Solutions, 06810 Ankara, Turkey;
| | - Siren Sezer
- Division of Nephrology, Faculty of Medicine, Atilim University, 06830 Ankara, Turkey;
| | - Didar Ucuncuoglu
- Department of Food Engineering, Faculty of Engineering, Cankiri Karatekin University, 18100 Cankiri, Turkey;
| | - Tevfik Honca
- Unit of Biochemistry, Gur Life Hospital, 26320 Eskisehir, Turkey;
| | - Dimitri Poddighe
- Department of Medicine, Nazarbayev University School of Medicine, Nur-Sultan 010000, Kazakhstan;
- Clinical Academic Department of Pediatrics, National Research Center of Maternal and Child Health, University Medical Center, Nur-Sultan 010000, Kazakhstan
| | - Izzet Yavuz
- Department of Nephrology, Lokman Hekim University, 06510 Ankara, Turkey;
| | - Peter Stenvinkel
- Department of Renal Medicine M99, Karolinska Institute, Karolinska University Hospital, 17164 Stockholm, Sweden;
| | - Mahmut Ilker Yilmaz
- Unit of Nephrology, Center for Epigenetic Health Solutions, 06810 Ankara, Turkey
- Correspondence:
| | - Erkan Demirkaya
- Department of Paediatrics, Division of Paediatric Rheumatology, Schulich School of Medicine & Dentistry, University of Western Ontario, London, ON N6A 5W9, Canada; (M.R.); (E.D.)
- Canadian Behcet and Autoinflammatory Disease Center (CAN BE AID), Schulich School of Medicine & Dentistry, University of Western Ontario, London, ON N6A 5W9, Canada;
- Department of Epidemiology and Biostatistics, Schulich School of Medicine & Dentistry, University of Western Ontario, London, ON N6A 3K7, Canada
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13
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Amin E, Abdel-Bakky MS, Darwish MA, Mohammed HA, Chigurupati S, Qureshi KA, Hassan MHA. The Glycemic Control Potential of Some Amaranthaceae Plants, with Particular Reference to In Vivo Antidiabetic Potential of Agathophora alopecuroides. Molecules 2022; 27:molecules27030973. [PMID: 35164238 PMCID: PMC8839903 DOI: 10.3390/molecules27030973] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2021] [Revised: 01/18/2022] [Accepted: 01/20/2022] [Indexed: 11/16/2022] Open
Abstract
Natural products continue to provide inspiring moieties for the treatment of various diseases. In this regard, investigation of wild plants, which have not been previously explored, is a promising strategy for reaching medicinally useful drugs. The present study aims to investigate the antidiabetic potential of nine Amaranthaceae plants: Agathophora alopecuroides, Anabasis lachnantha, Atriplex leucoclada, Cornulaca aucheri, Halothamnus bottae, Halothamnus iraqensis, Salicornia persia, Salsola arabica, and Salsola villosa, growing in the Qassim area, the Kingdom of Saudi Arabia. The antidiabetic activity of the hydroalcoholic extracts was assessed using in vitro testing of α-glucosidase and α-amylase inhibitory effects. Among the nine tested extracts, A. alopecuroides extract (AAE) displayed potent inhibitory activity against α-glucosidase enzyme with IC50 117.9 µg/mL noting better activity than Acarbose (IC50 191.4 µg/mL). Furthermore, AAE displayed the highest α- amylase inhibitory activity among the nine tested extracts, with IC50 90.9 µg/mL. Based upon in vitro testing results, the antidiabetic activity of the two doses (100 and 200 mg/kg) of AAE was studied in normoglycemic and streptozotocin (STZ)-induced diabetic mice. The effects of the extract on body weight, food and water intakes, random blood glucose level (RBGL), fasting blood glucose level (FBGL), insulin, total cholesterol, and triglycerides levels were investigated. Results indicated that oral administration of the two doses of AAE showed a significant dose-dependent increase (p < 0.05) in the body weight and serum insulin level, as well as a significant decrease in food and water intake, RBGL, FBGL, total cholesterol, and triglyceride levels, in STZ-induced diabetic mice, compared with the diabetic control group. Meanwhile, no significant differences of both extract doses were observed in normoglycemic mice when compared with normal control animals. This study revealed a promising antidiabetic activity of the wild plant A. alopecuroides.
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Affiliation(s)
- Elham Amin
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, Qassim University, Buraydah 51452, Saudi Arabia; (H.A.M.); (S.C.)
- Department of Pharmacognosy, Faculty of Pharmacy, Beni-Suef University, Beni-Suef 62514, Egypt;
- Correspondence:
| | - Mohamed Sadek Abdel-Bakky
- Department of Pharmacology and Toxicology, College of Pharmacy, Qassim University, Buraydah 51452, Saudi Arabia;
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Al-Azhar University, Cairo 11751, Egypt
| | - Mostafa Assem Darwish
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Nahda University, Beni-Suef 11787, Egypt;
| | - Hamdoon A. Mohammed
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, Qassim University, Buraydah 51452, Saudi Arabia; (H.A.M.); (S.C.)
- Department of Pharmacognosy, Faculty of Pharmacy, Al-Azhar University, Cairo 11751, Egypt
| | - Sridevi Chigurupati
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, Qassim University, Buraydah 51452, Saudi Arabia; (H.A.M.); (S.C.)
| | - Kamal Ahmad Qureshi
- Department of Pharmaceutics, Unaizah College of Pharmacy, Qassim University, Unaizah 51911, Saudi Arabia;
| | - Marwa H. A. Hassan
- Department of Pharmacognosy, Faculty of Pharmacy, Beni-Suef University, Beni-Suef 62514, Egypt;
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El-Askary H, Salem HH, Abdel Motaal A. Potential Mechanisms Involved in the Protective Effect of Dicaffeoylquinic Acids from Artemisia annua L. Leaves against Diabetes and Its Complications. Molecules 2022; 27:molecules27030857. [PMID: 35164118 PMCID: PMC8839821 DOI: 10.3390/molecules27030857] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 01/23/2022] [Accepted: 01/25/2022] [Indexed: 01/27/2023] Open
Abstract
Diabetes mellitus is a chronic disease affecting the globe and its incidence is increasing pandemically. The use of plant-derived natural products for diabetes management is of great interest. Polar fraction of Artemisia annua L. leaves has shown antidiabetic activity in vivo. In the present study, three major compounds were isolated from this polar fraction; namely, 3,5-dicaffeoylquinic acid (1); 4,5-dicaffeoylquinic acid (2), and 3,4- dicaffeoylquinic acid methyl ester (3), using VLC-RP-18 and HPLC techniques. The potential protective effects of these compounds against diabetes and its complications were investigated by employing various in vitro enzyme inhibition assays. Furthermore, their antioxidant and wound healing effectiveness were evaluated. Results declared that these dicaffeoylquinic acids greatly inhibited DPPIV enzyme while moderately inhibited α-glucosidase enzyme, where compounds 1 and 3 displayed the most prominent effects. In addition, compound 3 showed pronounced inhibition of α-amylase enzyme. Moreover, these compounds markedly inhibited aldose reductase enzyme and exerted powerful antioxidant effects, among which compound 3 exhibited the highest activity implying a notable potentiality in impeding diabetes complications. Interestingly, compounds 2 and 3 moderately accelerated scratch wound healing. Our findings suggest that these dicaffeoylquinic acids can be promising therapeutic agents for managing diabetes and its complications.
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Affiliation(s)
- Hesham El-Askary
- Department of Pharmacognosy, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt;
- Correspondence: (H.E.-A.); or (H.H.S.)
| | - Heba H. Salem
- Department of Biochemistry, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt
- College of Pharmacy, King Khalid University, Abha 61441, Saudi Arabia
- Correspondence: (H.E.-A.); or (H.H.S.)
| | - Amira Abdel Motaal
- Department of Pharmacognosy, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt;
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Jibril MM, Haji-Hamid A, Abas F, Karrupan J, Mohammed AS, Jaafar AH, Pak Dek MS, Ramli NS. Watermelon (Citrullus lanatus) leaf extract attenuates biochemical and histological parameters in high-fat diet/streptozotocin-induced diabetic rats. J Food Biochem 2022; 46:e14058. [PMID: 34981526 DOI: 10.1111/jfbc.14058] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 11/23/2021] [Accepted: 12/06/2021] [Indexed: 12/15/2022]
Abstract
The present research aimed to investigate the attenuative effects of watermelon (Citrullus lanatus) leaf extract on biochemical and histological parameters in a high-fat diet combined with a low-dose streptozotocin (HFD/STZ)-induced type 2 diabetes mellitus. Forty male Sprague Dawley rats were divided into five groups, including three supplemented groups: 10 mg metformin/kg BW (HFD/STZ +M), 200 mg watermelon leaf extract /kg BW (HFD/STZ + LD), and 400 mg watermelon leaf extract /kg BW (HFD/STZ + HD). The efficacy of the 6-week intervention was evaluated by measuring body weight, fasting blood sugar, serum insulin, lipid profile, superoxide dismutase, catalase, malondialdehyde, and serum liver markers. Kidneys and liver structure were defined by histopathological examination. Results revealed that intervention with watermelon leaf extract attenuated the biochemical parameters and the structural changes in kidneys and liver. In brief, the watermelon leaf extract treatment could effectively decrease complications associated with diabetes better than metformin, and that the treatment with 400 mg/kg BW is the most potent. PRACTICAL APPLICATIONS: This was the first study to investigate the antidiabetic potential of watermelon leaf extract in obese diabetic rats. Data revealed that the watermelon leaf extract significantly attenuated the HFD/STZ-induced diabetes changes, as evidenced by the biochemical and histological data. Hence, watermelon leaf could be an excellent candidate to be developed as a functional food ingredients or nutraceuticals for holistic management of diabetes mellitus and its complications.
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Affiliation(s)
- Muhammad Mustapha Jibril
- Department of Food Science, Universiti Putra Malaysia, UPM Serdang, Selangor, Malaysia.,Department of Biochemistry, Bayero University Kano, Kano, Nigeria
| | - Azizah Haji-Hamid
- Department of Food Science, Universiti Putra Malaysia, UPM Serdang, Selangor, Malaysia
| | - Faridah Abas
- Department of Food Science, Universiti Putra Malaysia, UPM Serdang, Selangor, Malaysia.,Laboratory of Natural Products, Institute of Bioscience, Universiti Putra Malaysia, Selangor, Malaysia
| | - Jeeven Karrupan
- Food Technology Research Center, Malaysia Agricultural Research and Development Institute, MARDI Headquarter, Persiaran MARDI-UPM, Selangor, Malaysia
| | | | - Ahmad Haniff Jaafar
- Department of Food Science, Universiti Putra Malaysia, UPM Serdang, Selangor, Malaysia
| | - Mohd Sabri Pak Dek
- Department of Food Science, Universiti Putra Malaysia, UPM Serdang, Selangor, Malaysia
| | - Nurul Shazini Ramli
- Department of Food Science, Universiti Putra Malaysia, UPM Serdang, Selangor, Malaysia
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16
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Differential expression of gluconeogenic enzymes in early- and late-stage diabetes: the effect of Citrullus colocynthis (L.) Schrad. Seed extract on hyperglycemia and hyperlipidemia in Wistar-Albino rats model. CLINICAL PHYTOSCIENCE 2021. [DOI: 10.1186/s40816-021-00324-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
The medicinal plant Citrullus colocynthis (L.) Schrad. (C. colocynthis) may benefit patients at different phases of diabetes by attuning to contrasting situations. Our primary objective was to find the mechanism(s) behind the antidiabetic/anti-hyperlipidemic effects of C.colocynthis seed aqueous extract (CCAE) in two different stages of type 2 diabetes (T2D) in rats.
Methods
Fasting blood sugar (FBS) levels, body weights, and the degree of impaired glucose tolerance (IGT) were measured in healthy nondiabetic control rats (Con), as well as rats with early and late stages of T2D, denoted as ET2D and LT2D, respectively. CCAE was intraperitoneally (IP) injected for 28 days. In the end, the hepatic mRNA expression levels of the following genes were determined by RT-PCR: glucose-6-phosphatase (G6Pase), phosphoenolpyruvate carboxykinase (PEPCK), insulin-dependent sterol regulatory element-binding protein-1c (SREBP-1c), acetyl-CoA carboxylase (ACC), fatty acid synthase (FAS), peroxisome proliferator-activated receptor alpha (PPARα), and carnitine palmitoyltransferase I (CPT1). The liver was examined by hematoxylin and eosin (H&E) and Oil-Red O staining. CCAE was partially analyzed by HPLC-DAD.
Results
ET2D and LT2D were characterized by differentially elevated FBS, deteriorated bodyweight, and significant IGT compared to Con. Hepatosteatoses of varying morphologies and higher hepatic expression of G6Pase than PRPCK in ET2D versus the opposite in LT2D further confirmed the divergent nature of metabolic aberrations. At the end of 28 days, the high levels of FBS, alkaline phosphatase (ALP), triglyceride (TG), urea, hepatic protein carbonyl content (PCC), and alanine and aspartate aminotransferases (AST and ALT, respectively) persisted in untreated LT2D. CCAE ameliorated oxidative stress and upregulated PPARα expression in diabetic groups and Con; it downregulated CPT1 expression in the LT2D group. CCAE’s ability to lower FBS and serum and hepatic TG in both ET2D and LT2D indicated its ability to act via different mechanisms. Ferulic acid (Fer A) and rutin hydrate (RH) were detected in CCAE.
Conclusion
CCAE lowered the FBS in ET2D via inhibiting the hepatic G6Pase expression (glycogenolysis). In LT2D, CCAE abated sugar levels by diverting PEPCK activity, preferably towards glyceroneogenesis than gluconeogenesis. The preserved triglyceride/fatty acid (TG/FA) cycle, the upregulated PPARα, and the downregulated CPT1 gene expressions reduced serum and hepatic TG.
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18
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Chen W, Zhong Y, Shu J, Yu H, Chen Z, Ren X, Hui Z, Li Z. Characterization of glucose-binding proteins isolated from health volunteers and human type 2 diabetes mellitus patients. Proteins 2021; 89:1413-1424. [PMID: 34165207 DOI: 10.1002/prot.26163] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 05/09/2021] [Accepted: 06/15/2021] [Indexed: 11/11/2022]
Abstract
Glucose is one of the most important monosaccharides. Although hyperglycemia in type 2 diabetes mellitus (T2DM) lead to a series of changes; however, little is known about the alterations of serum proteins in T2DM, especially those proteins with glucose affinity. In this study, the glucose-binding proteins (GlcBPs) of serum were isolated from 30 health volunteer (HV) and 30 T2DM patients by glucose-magnetic particle conjugates (GMPC) and identified by mass spectrum analysis. Gene ontology (GO) enrichment analysis and Kyoto Encyclopedia of Genes and Genomes (KEGG) indicated the main gene annotations and pathways of this GlcBPs, while Motif-X webtool provided the potential glucose-binding domains. Further docking analysis and glycan microarray were used to understand the interaction between the glucose and glucose-binding domains. A total of 149 and 119 GlcBPs were identified from HV and T2DM cases. Four hundred and sixty-eight GO annotations in 165 identified GlcBPs were available, while the majority involved in cellular processes and binding function. A short peptide, EGDEEITCLNGFWLE, which was derived from the Motif-X analysis, presented a high-binding ability to the glucose from both docking analysis and glycan analysis. GMPC provides a powerful tool for GlcBPs isolation and indicates the alteration of GlcBPs in T2DM.
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Affiliation(s)
- Wentian Chen
- Laboratory for Functional Glycomics, College of Life Sciences, Northwest University, Xi'an, China
| | - Yaogang Zhong
- Laboratory for Functional Glycomics, College of Life Sciences, Northwest University, Xi'an, China
| | - Jian Shu
- Laboratory for Functional Glycomics, College of Life Sciences, Northwest University, Xi'an, China
| | - Hanjie Yu
- Laboratory for Functional Glycomics, College of Life Sciences, Northwest University, Xi'an, China
| | - Zhuo Chen
- Laboratory for Functional Glycomics, College of Life Sciences, Northwest University, Xi'an, China
| | - Xiameng Ren
- Laboratory for Functional Glycomics, College of Life Sciences, Northwest University, Xi'an, China
| | - Ziye Hui
- Laboratory for Functional Glycomics, College of Life Sciences, Northwest University, Xi'an, China
| | - Zheng Li
- Laboratory for Functional Glycomics, College of Life Sciences, Northwest University, Xi'an, China
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Guzmán TJ, Gurrola-Díaz CM. Glucokinase activation as antidiabetic therapy: effect of nutraceuticals and phytochemicals on glucokinase gene expression and enzymatic activity. Arch Physiol Biochem 2021; 127:182-193. [PMID: 31210550 DOI: 10.1080/13813455.2019.1627458] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Diabetes represents an important public health problem. Recently, new molecular targets have been identified and exploited to treat this disease. Due to its pivotal role in glucose homeostasis, glucokinase (GCK) is a promising target for the development of novel antidiabetic drugs; however, pharmacological agents that modulate GCK activity have been linked to undesirable side-effects, limiting its use. Interestingly, plants might be a valuable source of new therapeutic compounds with GCK-activating properties and presumably no adverse effects. In this review, we describe biochemical characteristics related to the physiological and pathological importance of GCK, as well as the mechanisms involved in its regulation at different molecular levels. Posteriorly, we present a compendium of findings supporting the potential use of nutraceuticals and phytochemicals in the management of diabetes through modulation of GCK expression and activity. Finally, we propose critical aspects to keep in mind when designing experiments to evaluate GCK modulation properly.
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Affiliation(s)
- Tereso J Guzmán
- Departamento de Biología Molecular y Genómica, Instituto Transdisciplinar de Investigación e Innovación en Salud/Instituto de Investigación en Enfermedades Crónico-Degenerativas, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, Jalisco, México
| | - Carmen M Gurrola-Díaz
- Departamento de Biología Molecular y Genómica, Instituto Transdisciplinar de Investigación e Innovación en Salud/Instituto de Investigación en Enfermedades Crónico-Degenerativas, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, Jalisco, México
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Chandana NS, Morlock GE. Comprehensive bioanalytical multi-imaging by planar chromatography in situ combined with biological and biochemical assays highlights bioactive fatty acids in abelmosk. Talanta 2021; 223:121701. [DOI: 10.1016/j.talanta.2020.121701] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 09/17/2020] [Accepted: 09/19/2020] [Indexed: 12/16/2022]
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21
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Rathwa N, Patel R, Palit SP, Parmar N, Rana S, Ansari MI, Ramachandran AV, Begum R. β-cell replenishment: Possible curative approaches for diabetes mellitus. Nutr Metab Cardiovasc Dis 2020; 30:1870-1881. [PMID: 32994121 DOI: 10.1016/j.numecd.2020.08.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Revised: 08/02/2020] [Accepted: 08/03/2020] [Indexed: 02/07/2023]
Abstract
AIMS Diabetes mellitus (DM) is a disorder of heterogeneous etiology marked by persistent hyperglycemia. Exogenous insulin is the only treatment for type 1 diabetes (T1D). Islet transplantation is a potential long cure for T1D but is disapproved due to the possibility of immune rejection in the later stage. The approaches used for treating type 2 diabetes (T2D) include diet restrictions, weight management and pharmacological interventions. These procedures have not been able to boost the quality of life for diabetic patients owing to the complexity of the disorder. DATA SYNTHESIS Hence, research has embarked on permanent ways of managing, or even curing the disease. One of the possible approaches to restore the pancreas with new glucose-responsive β-cells is by their regeneration. Regeneration of β-cells include islet neogenesis, dedifferentiation, and trans-differentiation of the already differentiated cells. CONCLUSIONS This review briefly describes the islet development, functions of β-cells, mechanism and factors involved in β-cell death. It further elaborates on the potential of the existing and possible therapeutic modalities involved in the in-vivo replenishment of β-cells with a focus on exercise, diet, hormones, small molecules, and phytochemicals.
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Affiliation(s)
- Nirali Rathwa
- Department of Biochemistry, Faculty of Science, The Maharaja Sayajirao University of Baroda, Vadodara, 390 002, Gujarat, India
| | - Roma Patel
- Department of Biochemistry, Faculty of Science, The Maharaja Sayajirao University of Baroda, Vadodara, 390 002, Gujarat, India
| | - Sayantani Pramanik Palit
- Department of Biochemistry, Faculty of Science, The Maharaja Sayajirao University of Baroda, Vadodara, 390 002, Gujarat, India
| | - Nishant Parmar
- Department of Biochemistry, Faculty of Science, The Maharaja Sayajirao University of Baroda, Vadodara, 390 002, Gujarat, India
| | - Sneha Rana
- Department of Biochemistry, Faculty of Science, The Maharaja Sayajirao University of Baroda, Vadodara, 390 002, Gujarat, India
| | - Mohammad Ismail Ansari
- Department of Zoology, J.A.T. Arts, Science and Commerce College, Savitribai Phule- Pune University, 411 007, Maharashtra, India
| | - A V Ramachandran
- Division of Life Science, School of Sciences, Navrachana University, Vadodara, 391 410, Gujarat, India
| | - Rasheedunnisa Begum
- Department of Biochemistry, Faculty of Science, The Maharaja Sayajirao University of Baroda, Vadodara, 390 002, Gujarat, India.
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Kotb El-Sayed MI, Al-Massarani S, El Gamal A, El-Shaibany A, Al-Mahbashi HM. Mechanism of antidiabetic effects of Plicosepalus Acaciae flower in streptozotocin-induced type 2 diabetic rats, as complementary and alternative therapy. BMC Complement Med Ther 2020; 20:290. [PMID: 32967670 PMCID: PMC7509926 DOI: 10.1186/s12906-020-03087-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Accepted: 09/15/2020] [Indexed: 01/11/2023] Open
Abstract
Background Diabetes and its related complications remain to be a major clinical problem. We aim to investigate the antidiabetic mechanistic actions of Plicosepalus Acaciae (PA) flowers in streptozotocin (STZ)-induced diabetic rats. Methods After diabetes induction, rats were divided randomly into five groups, including: 1) normal control group, 2) diabetic control group, 3) diabetic group treated with 150 mg/kg of ethanolic extract of PA flowers, 4) diabetic group treated with 300 mg/kg of ethanolic extract of PA flowers, and 5) diabetic group treated with 150 mg/kg of metformin. After 15 days of treatment; fasting blood glucose, glycated hemoglobin (HBA1c%), insulin, C-peptide, superoxide dismutase (SOD), catalase, reduced glutathione (GSH), malondialdehyde (MDA), triglyceride (TGs), total cholesterol (Tc), low density lipoprotein cholesterol (LDL-c), very LDL (VLDL), high DLc (HDL-c), tumor necrosis factor-α (TNF-α), and interleukin-6 (IL-6) levels were assessed. Histopathology of pancreas was also assessed. Results The results showed that PA flower ethanolic extract significantly reduced blood glucose, HBA1c%, MDA, TGs, Tc, VLDL, LDL-c, TNF-α, and IL-6 levels in a dose-dependent manner. All these parameters were already increased by diabetic induction in the untreated diabetic group. Treatment of diabetic rats with PA flower increased insulin, HDL-c, GSH, catalase, and SOD levels. Histological examination showed that the PA flower caused reconstruction, repair, and recovery of damaged pancreas when compared with the untreated group. Conclusions PA flower has a potential role in the management of diabetes as complementary and alternative therapy, due to its antioxidant, anti-inflammatory, hypolipidemic, hypoglycemic and insulin secretagogue effects.
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Affiliation(s)
- Mohamed-I Kotb El-Sayed
- Department of Biochemistry and molecular Biology, Faculty of Pharmacy, Helwan University, Ain Helwan, Helwan, P.O. Box 11790, Cairo, Egypt. .,Department of Biochemistry, Faculty of Pharmacy, Ahram Canadian University, Giza, Egypt.
| | - Shaza Al-Massarani
- Department of Pharmacognosy, Pharmacy College, King Saud University, Riyadh, Saudi Arabia
| | - Ali El Gamal
- Department of Pharmacognosy, Pharmacy College, King Saud University, Riyadh, Saudi Arabia.,Department of Pharmacognosy, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
| | - Amina El-Shaibany
- Department of Pharmacognosy, Faculty of Pharmacy, Sana'a University, Sana'a, Yemen
| | - Hassan M Al-Mahbashi
- Department of Forensic Medicine and Clinical toxicology, Faculty of Medicine, Sana'a University, Sana'a, Yemen
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Jugran AK, Rawat S, Devkota HP, Bhatt ID, Rawal RS. Diabetes and plant-derived natural products: From ethnopharmacological approaches to their potential for modern drug discovery and development. Phytother Res 2020; 35:223-245. [PMID: 32909364 DOI: 10.1002/ptr.6821] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 06/08/2020] [Accepted: 07/02/2020] [Indexed: 02/06/2023]
Abstract
Diabetes is a disease of serious concern faced by the health care industry today. Primary diabetes mellitus and its complications are still costly to manage with modern drugs. Extensive research on the screening of anti-diabetic agents in past decades established natural products as one of the major potential sources of drug discovery. However, only a few drugs of plant origin have been scientifically validated. Therefore, the development of new anti-diabetic drugs is of great demand. Hence, natural products could be explored as potential anti-diabetic drugs. Natural plants derived extracts and molecules like berberine, ginsenosides, curcumin, stevioside, gingerols, capsaicin, catechins, simple phenolic compounds, anthocyanins, resveratrol, genistein and hesperidin obtained from different species are used for curing diabetes and found to possess different action mechanisms. In this review, the importance of medicinal plants and their active constituents for anti-diabetic agents are described. The present study also emphasized the importance of diabetes control, reduction in its complications and use of the anti-diabetic agents. The detailed action mechanism of these extracts/compounds for their activities are also described. However, the anti-diabetic drugs from plant origin require scientific validation through animal and clinical studies to exploit in terms of modern commercial medicines.
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Affiliation(s)
- Arun K Jugran
- Garhwal Regional Centre, G. B. Pant National Institute of Himalayan Environment (NIHE), Srinagar, Uttarakhand, India
| | - Sandeep Rawat
- Sikkim Regional Centre, G. B. Pant National Institute of Himalayan Environment (NIHE), Gangtok, Sikkim, India
| | - Hari P Devkota
- Department of Instrumental Analysis, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan
| | - Indra D Bhatt
- Center for Biodiversity Conservation and Management (CBCM), G. B. Pant National Institute of Himalayan Environment (NIHE), Kosi-Katarmal, Almora, Uttarakhand, India
| | - Ranbeer S Rawal
- Center for Biodiversity Conservation and Management (CBCM), G. B. Pant National Institute of Himalayan Environment (NIHE), Kosi-Katarmal, Almora, Uttarakhand, India
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Mela DJ, Cao XZ, Dobriyal R, Fowler MI, Lin L, Joshi M, Mulder TJP, Murray PG, Peters HPF, Vermeer MA, Zhang Z. The effect of 8 plant extracts and combinations on post-prandial blood glucose and insulin responses in healthy adults: a randomized controlled trial. Nutr Metab (Lond) 2020; 17:51. [PMID: 32647531 PMCID: PMC7336677 DOI: 10.1186/s12986-020-00471-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2020] [Accepted: 06/24/2020] [Indexed: 11/11/2022] Open
Abstract
BACKGROUND Lower post-prandial glucose (PPG) and insulin (PPI) responses to foods are associated with reduced diabetes risk and progression. Several plant extracts have been proposed to reduce PPG or PPI by inhibiting enzymes or transporters involved in carbohydrate digestion and uptake. This study evaluates a range of such extracts, consumed with a carbohydrate load, for their effects on PPG, PPI and indicators of (gastrointestinal) tolerance. METHODS Interventions were extracts of mulberry fruit (MFE, 1.5 g), mulberry leaf (MLE, 1.0 g), white bean (WBE, 3.0 g), apple (AE, 2.0 g), elderberry (EE, 2.0 g), turmeric (TE, 0.18 g), AE + TE, and EE + TE. Each of these 8 individual extracts or combinations were added to a rice porridge containing ~ 50 g available carbohydrate (control). In a within-subject (randomised, balanced incomplete block) design, individual subjects received the control and a subset of 4 of the 8 extracts or combinations. Participants were 72 apparently healthy adults (mean [SD] age 31.2 [5.5] yr, body mass index 22.1 [2.0] kg/m2). The primary outcome was the percentage change in 2-h PPG (positive incremental area under the curve) relative to control. Secondary measures were the 2-h PPI response, 7-h breath hydrogen, measures of gastrointestinal discomfort, and urine glucose. RESULTS In the 65 subjects who completed the control and at least one intervention treatment, additions of AE, MFE and MLE produced statistically significant reductions in PPG vs control (p < 0.05; mean effect - 24.1 to - 38.1%). All extracts and combinations except TE and WBE significantly reduced PPI (p < 0.01; mean effect - 17.3% to - 30.4%). Rises in breath hydrogen > 10 ppm were infrequent, but statistically more frequent than control only for MLE (p = 0.02). Scores for gastrointestinal discomfort were extremely low and not different from control for any treatment, and no glucosuria was observed. CONCLUSIONS Additions of AE, MFE and MLE to rice robustly reduced PPG and PPI. EE significantly reduced only PPI, while TE and WBE showed no significant efficacy for PPG or PPI. Breath hydrogen responses to MLE suggest possible carbohydrate malabsorption at the dose used, but there were no explicit indications of intolerance to any of the extracts. TRIAL REGISTRATION ClinicalTrials.gov identifier NCT04258501. Registered 6 February 2020 - Retrospectively registered.
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Affiliation(s)
| | | | | | | | - Li Lin
- Unilever R&D Shanghai, Shanghai, China
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The Effect of Corrected Inflammation, Oxidative Stress and Endothelial Dysfunction on Fmd Levels in Patients with Selected Chronic Diseases: A Quasi-Experimental Study. Sci Rep 2020; 10:9018. [PMID: 32488098 PMCID: PMC7265488 DOI: 10.1038/s41598-020-65528-6] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Accepted: 05/04/2020] [Indexed: 02/07/2023] Open
Abstract
While the pathophysiology of chronic disorders varies there are three basic mechanisms - inflammation, oxidative stress and endothelial dysfunction – that are common in many chronic diseases. However, the failure of these mechanisms to work synchronously can lead to morbidity complicating the course of many chronic diseases. We analyzed data of 178 patients from cohorts with selected chronic diseases in this quasi-experimental study. Endothelial dysfunction was determined by flow-mediated dilatation (FMD) and asymmetric dimethylarginine (ADMA) levels. Serum ADMA, high sensitive C-reactive protein (hs-CRP), serum PTX3, malondialdehyde (MDA), Cu/Zn-superoxide dismutase (Cu/Zn-SOD), glutathione peroxidase (GSH-Px) levels and FMD were studied in baseline and after 12 weeks of Morinda citrifolia (anti-atherosclerotic liquid- AAL), omega-3 (anti-inflammatory capsules- AIC) and extract with Alaskan blueberry (anti-oxidant liquid- AOL). Stepwise multivariate regression analysis was used to evaluate the association of FMD with clinical and serologic parameters. Serum ADMA, MDA, PTX3, hsCRP and albumin levels, and proteinuria were significantly decreased while CuZn-SOD, GSH-Px and FMD levels were significantly increased following AAL, AIC and AOL therapies. The FMD was negatively correlated with serum ADMA, MDA, PTX3, and hsCRP levels and positively correlated with CuZn-SOD and eGFR levels. ADMA and PTX3 levels were independently related to FMD both before and after AAL, AIC and AOL therapies. Our study shows that serum ADMA, MDA, PTX3 levels are associated with endothelial dysfunction in patients with selected chronic diseases. In addition, short-term AAL, AIC and AOL therapies significantly improves a number of parameters in our cohort and can normalize ADMA, PTX3, hsCRP and MDA levels.
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Jimenez-Garcia SN, Vazquez-Cruz MA, Ramirez-Gomez XS, Beltran-Campos V, Contreras-Medina LM, Garcia-Trejo JF, Feregrino-Pérez AA. Changes in the Content of Phenolic Compounds and Biological Activity in Traditional Mexican Herbal Infusions with Different Drying Methods. Molecules 2020; 25:molecules25071601. [PMID: 32244463 PMCID: PMC7180736 DOI: 10.3390/molecules25071601] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2020] [Revised: 03/26/2020] [Accepted: 03/30/2020] [Indexed: 11/16/2022] Open
Abstract
Mexican spices are used in the supplementation of the human diet and as medicinal herbs for the particularly high amounts of compounds capable of deactivating free radicals. In addition, these spices can have beneficial effects on chronic, no-transmissible diseases such as type II diabetes and hypertension arterial. The objective of this study is to determine the content of phenolic compounds on the antioxidant activity and inhibitory enzymes of α-amylase, α-glucosidase and angiotensin-converting enzyme in melissa, peppermint, thyme and mint, which are subjected to microwave drying, conventional and freeze-drying to be used as alternative treatments. Spices were evaluated to determine total phenols, flavonoids, tannins, 2,2-Diphenyl-1-picrylhydrazyl (DPPH), (2,2'-azino-bis- (3-ethyl benzothiazolin-6-ammonium sulphonate) (ABTS) and Ferric Reducing/Antioxidant Power (FRAP), enzymatic activity. The investigation showed that conventional drying caused a decrease in antioxidant properties and inhibitory activity, in some species, while remained preserved in microwave drying and freeze-drying. The activity of polyphenol oxides and peroxidase decreases with high temperatures and these increase with the use of cold temperatures. This study aims to determine the extent of optimal drying required to preserve phenolic compounds, and the positive effect on antioxidant activity and enzymatic activity in in vitro models, which will produce benefits for the infusion processing industry and the pharmaceutical industry.
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Affiliation(s)
- Sandra N. Jimenez-Garcia
- División de Ciencias de la Salud e Ingeniería, Campus Celaya-Salvatierra, C.A. Enfermedades no transmisibles, Universidad de Guanajuato, Av. Ing. Javier Barros Sierra No. 201 Esq. Baja California, Ejido de Santa Maria del Refugio Celaya, Guanajuato, C.P. 38140, Mexico; (S.N.J.-G.); (X.S.R.-G.); (V.B.-C.)
| | - Moisés A. Vazquez-Cruz
- Departamento de Investigación y Desarrollo, KOPPERT MEXICO, Circuito el Marques Nte. 82, Parque industrial El Marqués, Santiago de Querétaro, C.P. 76246, Mexico;
| | - Xóchitl S. Ramirez-Gomez
- División de Ciencias de la Salud e Ingeniería, Campus Celaya-Salvatierra, C.A. Enfermedades no transmisibles, Universidad de Guanajuato, Av. Ing. Javier Barros Sierra No. 201 Esq. Baja California, Ejido de Santa Maria del Refugio Celaya, Guanajuato, C.P. 38140, Mexico; (S.N.J.-G.); (X.S.R.-G.); (V.B.-C.)
| | - Vicente Beltran-Campos
- División de Ciencias de la Salud e Ingeniería, Campus Celaya-Salvatierra, C.A. Enfermedades no transmisibles, Universidad de Guanajuato, Av. Ing. Javier Barros Sierra No. 201 Esq. Baja California, Ejido de Santa Maria del Refugio Celaya, Guanajuato, C.P. 38140, Mexico; (S.N.J.-G.); (X.S.R.-G.); (V.B.-C.)
| | - Luis M. Contreras-Medina
- División de Estudios de Posgrado, C.A. Bioingeniería, Básica y Aplicada Facultad de Ingeniería, Universidad Autónoma de Querétaro, C.U. Cerro de las Campanas S/N, Colonia Las Campanas, Santiago de Querétaro, Querétaro, C.P. 76010, Mexico; (L.M.C.-M.); (J.F.G.-T.)
| | - Juan F. Garcia-Trejo
- División de Estudios de Posgrado, C.A. Bioingeniería, Básica y Aplicada Facultad de Ingeniería, Universidad Autónoma de Querétaro, C.U. Cerro de las Campanas S/N, Colonia Las Campanas, Santiago de Querétaro, Querétaro, C.P. 76010, Mexico; (L.M.C.-M.); (J.F.G.-T.)
| | - Ana A. Feregrino-Pérez
- División de Estudios de Posgrado, C.A. Bioingeniería, Básica y Aplicada Facultad de Ingeniería, Universidad Autónoma de Querétaro, C.U. Cerro de las Campanas S/N, Colonia Las Campanas, Santiago de Querétaro, Querétaro, C.P. 76010, Mexico; (L.M.C.-M.); (J.F.G.-T.)
- Correspondence: ; Tel.: +442-192-12-11 (ext. 6016)
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Othman AI, Amer MA, Basos AS, El-Missiry MA. Moringa oleifera leaf extract ameliorated high-fat diet-induced obesity, oxidative stress and disrupted metabolic hormones. CLINICAL PHYTOSCIENCE 2019. [DOI: 10.1186/s40816-019-0140-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Abstract
Background
Obesity is a health problem in many countries, and maintaining a perfect weight is challenging. Moringa oleifera leaf extract (ME) is rich in polyphenols with antioxidant and pharmaceutical potential. The present study investigated the potential protective effect of Moringa oleifera leaf extract against obesity induced from a high-fat diet (HFD), oxidative stress and disruption of metabolic hormones compared to simvastatin (SIM) or their combination.
Results
Rats fed a HFD for 6 weeks exhibited a significant increase in body weight and levels of serum glucose and lipid fractions, verifying an obesity state. There were also higher levels of insulin and leptin and lower gherlin in sera of HFD rats compared to the levels in control rats. Homeostasis model assessment for insulin resistance (HOMA-IR), quantitative insulin sensitivity check index (QUICKI) and the atherogenic index were elevated, indicating the development of insulin resistance and dyslipidaemia in these rats. These changes were accompanied with a significant increase in oxidative stress, as indicated by elevated lipid peroxidation and protein oxidation with low levels of antioxidants in liver. The activities of liver function enzymes, including aspartate amino transferase, alanine amino transferase, alkaline phosphatase and gamma glutamyltransferase, were also significantly increased in serum. Concurrent treatment with 300 mg/kg ME for 6 weeks ameliorated the increase in body weight and improved the levels of glucose, lipid fractions and metabolic hormones, indicating the anti-obesity effect and amelioration of tissue insulin resistance potential of ME. ME treatment also normalized oxidative stress and antioxidants in liver and improved liver function enzymes, indicating the antioxidant potential of ME. The effects of ME were similar to SIM, and the combination of these agents was better than each agent alone.
Conclusion
We propose that ME extract has anti-obesity and antioxidant potential and may be used as a lipid-lowering drug to control weight, obesity and its pathophysiological consequences.
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Tej R, Hamdi A, Serairi Beji R, Aidi Wannes W, Bettaieb Rebey I, Oueslati S, Ksouri R, Saidani Tounsi M, Lachaal M, Karray Bouraoui N. Does Lycium europaeum leaf have antihyperglycemic, antihyperlipidemic and antioxidant effects. BRAZ J PHARM SCI 2019. [DOI: 10.1590/s2175-97902019000118064] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Affiliation(s)
- Rabeb Tej
- Campus Universitaire Tunis El Manar, Tunisia
| | - Amel Hamdi
- Campus Universitaire Tunis El Manar, Tunisia
| | | | | | | | - Samia Oueslati
- Center of Biotechnology of the Technopole Borj-Cedria, Tunisia
| | - Riadh Ksouri
- Center of Biotechnology of the Technopole Borj-Cedria, Tunisia
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Tekula S, Khurana A, Anchi P, Godugu C. Withaferin-A attenuates multiple low doses of Streptozotocin (MLD-STZ) induced type 1 diabetes. Biomed Pharmacother 2018; 106:1428-1440. [DOI: 10.1016/j.biopha.2018.07.090] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Revised: 07/14/2018] [Accepted: 07/17/2018] [Indexed: 12/14/2022] Open
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The Effect of Morinda citrifolia L. Fruit Juice on the Blood Sugar Level and Other Serum Parameters in Patients with Diabetes Type 2. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2018; 2018:3565427. [PMID: 30158993 PMCID: PMC6106972 DOI: 10.1155/2018/3565427] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 05/21/2018] [Accepted: 06/13/2018] [Indexed: 11/28/2022]
Abstract
Background The effect of the daily consumption of Morinda citrifolia (Noni) fruit juice on the physiological status of patients with diabetes type 2 (DT2) was tested over a period of two months. Methods Morinda citrifolia (Noni) fruit juice (NFJ), 2 ml per kg bw per day, was consumed by twenty patients with DT2 after they underwent a standard treatment regimen including carbohydrate reduced diet and treatment with an antidiabetic drug and/or insulin. NFJ consumption started only after no further improvement was achieved. The intake of NFJ was terminated after eight weeks. The fasting blood sugar level was monitored every morning during the entire treatment period. Blood samples were taken before, at, and four and eight weeks after the start of NFJ intake. The analysis of the blood samples included the concentration of blood glucose, HbA1c, C-peptide, hs-CRP, triglycerides, total cholesterol, LDL, and HDL. Results The consumption of NFJ by 20 patients with DT2 resulted in a significant mean decrease of the morning blood sugar level monitored over a period of eight weeks. While NFJ reduced the blood glucose level in several but not all hyperglycemic patients, it did not cause hypoglycemia in normoglycemic patients. NFJ consumption also reduced the mean HbA1c value significantly (p= 0.033). Significant decreases (p= 0.01) were also achieved for high sensitive CRP values in patients starting with high levels (>2 mg/L), whereas no change was observed in patients with normal values (< 2 mg/L). The level of C-peptide showed a significant mean increase after four weeks of NFJ consumption in those patients who started with low levels (<3 μg/l, p=0.004, N=11) but not in patients with higher levels (> 3 μg/L). Conclusion The daily consumption of NFJ has the potential to regulate elevated blood sugar levels and some other pathological parameters in patients with DT2. NFJ therefore serves as a suitable additive to the diet of diabetic patients.
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Chatterji S, Fogel D. Study of the effect of the herbal composition SR2004 on hemoglobin A1c, fasting blood glucose, and lipids in patients with type 2 diabetes mellitus. Integr Med Res 2018; 7:248-256. [PMID: 30271713 PMCID: PMC6160498 DOI: 10.1016/j.imr.2018.04.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Revised: 03/23/2018] [Accepted: 04/05/2018] [Indexed: 12/17/2022] Open
Abstract
Background Type 2 diabetes mellitus (T2DM) is a metabolic disorder characterized by raised blood glucose levels and peripheral insulin resistance. It is an increasingly prevalent global healthcare concern. Conventional treatment options are limited and in this context, there is renewed interest in evaluating the clinical and biological effects of traditional therapies. We assess the effect of a new herbal composition SR2004 on the hemoglobin A1c (HbA1c), fasting blood glucose, and lipid profiles of patients with T2DM. Methods This is a single center, unblinded, prospective interventional study conducted in Israel. The composition SR2004 includes Morus alba, Artemisia dracunculus, Urtica dioica, Cinnamomum zeylanicum, and Taraxacum officinale. One hundred and nineteen patients with diagnosed T2DM were enrolled and received SR2004 in addition to their usual medications. HbA1c, fasting blood glucose, and lipid profiles at 12 weeks were compared with baseline. In addition, the tolerability and side effects of SR2004 were recorded. Results One hundred and three patients completed 12 weeks of follow-up (87%) and were included in the results. At 12 weeks, HbA1c reduced from 9.0% to 7.1% (22%; p < 0.0001), mean blood glucose decreased from 211 mg/dL to 133 mg/dL (37% reduction; p < 0.0001), mean total cholesterol to 185 mg/dL (13% reduction; p < 0.01) and mean serum triglycerides to160 mg/dL (a reduction of 40% from baseline; p < 0.001). Twelve patients (12%) had no response with SR2004 supplementation. In addition, of thirteen patients who took insulin at baseline, five required only oral hypoglycemics and another five reduced their daily insulin requirements by 30% at 12 weeks. Clinical observations included improvements in vasculopathy, including reversal of established retinopathic changes in two patients. No major adverse effects were observed, with minor abdominal symptoms reported in sixteen patients (16%). Conclusion SR2004 supplementation significantly reduced HbA1c, blood glucose, and lipids with good tolerability and no observed adverse interactions with conventional medications. Some interesting findings relating to the reversal of microvascular phenomena warrant further research to elucidate the mechanisms of action of this novel composition.
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Affiliation(s)
| | - Dov Fogel
- D.S. Polyclinic, Givat Shmuel, Israel
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Deepa P, Sowndhararajan K, Kim S, Park SJ. A role of Ficus species in the management of diabetes mellitus: A review. JOURNAL OF ETHNOPHARMACOLOGY 2018; 215:210-232. [PMID: 29305899 DOI: 10.1016/j.jep.2017.12.045] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Revised: 12/13/2017] [Accepted: 12/30/2017] [Indexed: 05/24/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Diabetes mellitus is one of the most common global health concerns, with a rapidly increasing incidence. A variety of medicinal plants, particularly those belonging to the genus Ficus (Moraceae), and their active compounds have been used to treat diabetes and related chronic disorders since ancient times. AIM OF THE STUDY The aim of this review is to provide information regarding traditional and scientific knowledge of Ficus species with antidiabetic activity to researchers. MATERIALS AND METHODS A literature search was conducted to obtain information about the antidiabetic properties of Ficus from the electronic databases. Common and scientific names of various Ficus species were used as keywords for the search, along with the terms antidiabetic, hypoglycemic and diabetes. RESULTS Among the assorted species of Ficus that were included in our search, F. benghalensis, F. carica, F. glomerata, F. glumosa, F. racemosa, and F. religiosa exhibited remarkable antidiabetic properties with various mechanisms of action. Moreover, Ficus species are versatile sources of bioactive metabolites such as flavonoids, phenolic acids, tannins, alkaloids, glycosides, coumarins, triterpenoids, sterols and vitamin E. These extracts and isolated compounds significantly have enhanced insulin secretion and subsequently reduced blood glucose level in various in vivo studies. CONCLUSION This review summarizes the antidiabetic potentials of the genus Ficus, including pharmacological studies with mechanisms of action as well as ethnobotanical uses. This review can help inform future scientific research towards the development of novel antidiabetic drugs.
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Affiliation(s)
- Ponnuvel Deepa
- School of Natural Resources and Environmental Sciences, Kangwon National University, Chuncheon 24341, Gangwon-do, Republic of Korea.
| | - Kandhasamy Sowndhararajan
- School of Natural Resources and Environmental Sciences, Kangwon National University, Chuncheon 24341, Gangwon-do, Republic of Korea.
| | - Songmun Kim
- School of Natural Resources and Environmental Sciences, Kangwon National University, Chuncheon 24341, Gangwon-do, Republic of Korea.
| | - Se Jin Park
- School of Natural Resources and Environmental Sciences, Kangwon National University, Chuncheon 24341, Gangwon-do, Republic of Korea.
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Selected Phyto and Marine Bioactive Compounds: Alternatives for the Treatment of Type 2 Diabetes. STUDIES IN NATURAL PRODUCTS CHEMISTRY 2018. [DOI: 10.1016/b978-0-444-64068-0.00004-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Spínola V, Castilho PC. Evaluation of Asteraceae herbal extracts in the management of diabetes and obesity. Contribution of caffeoylquinic acids on the inhibition of digestive enzymes activity and formation of advanced glycation end-products (in vitro). PHYTOCHEMISTRY 2017; 143:29-35. [PMID: 28755585 DOI: 10.1016/j.phytochem.2017.07.006] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Revised: 06/29/2017] [Accepted: 07/20/2017] [Indexed: 06/07/2023]
Abstract
The study was performed to assess, for the first time, the in vitro anti-diabetic potential of ten Asteraceae plant extracts to inhibit the activity of digestive enzymes (α-amylase, α-, β-glucosidases and lipase) responsible for hydrolysis/digestion of sugar and lipids. Prevention of advanced glycation end-products (AGEs) formation was evaluated in bovine serum albumin/ribose glycation reaction model. The phytochemical profiles and caffeoylquinic acids (CQAs) contents were determined for the methanolic extract of each plant. Analyzed plant extracts exhibited significant inhibitory activity against key digestive enzymes linked to type II diabetes and obesity. A strong inhibition was observed for glucosidases and mild activity towards amylase and lipase (compared to reference compounds). Moreover, some extracts exhibited potent ability to prevent formation of AGEs, implicated in some diabetic complications. Caffeoylquinic acids were dominant in all plant extracts and findings demonstrate that these compounds are the most relevant hypoglycemic and anti-glycation agents. From the obtained results, Argyranthemum pinnatifidum, Helichrysum melaleucum, and Phagnalon lowei are good candidates for further development of phyto-pharmaceutical preparations as complementary therapy for diabetes and obesity control.
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Affiliation(s)
- Vítor Spínola
- CQM - Centro de Química da Madeira, Universidade da Madeira, Campus da Penteada, 9020-105 Funchal, Portugal
| | - Paula C Castilho
- CQM - Centro de Química da Madeira, Universidade da Madeira, Campus da Penteada, 9020-105 Funchal, Portugal.
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Abstract
Coffee is one of the most widely consumed beverages in the world. It has primarily consumed due to its stimulant effect and unique taste since the ancient times. Afterwards, its consumption has been historically associated with a lower risk of some diseases such as type 2 diabetes mellitus, obesity, cardiovascular disease and some type of cancer and thus it has also consumed due to health benefits. It contains many bioactive compounds such as caffeine, chlorogenic acids and diterpenoid alcohols which have so far been associated with many potential health benefits. For example, caffeine reduces risk of developing neurodegenerative disease and chlorogenic acids (CGA) and diterpene alcohols have many health benefits such as antioxidant and chemo-preventive. Coffee also have harmful effects. For example, diterpenoid alcohols increases serum homocysteine and cholesterol levels and thus it has adverse effects on cardiovascular system. Overall, the study that supports the health benefits of coffee is increasing. But, it is thought-provoking that the association with health benefits of coffee consumption and frequency at different levels in each study. For this reason, we aimed to examine the health effect of the coffee and how much consumption is to investigate whether it meets the claimed health benefits.
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Affiliation(s)
- Büşra Başar Gökcen
- a Gazi University , Faculty of Health Sciences, Nutrition and Dietetics Department , Ankara , Turkey
| | - Nevin Şanlier
- b Biruni University , Faculty of Health Sciences, Nutrition and Dietetics Department , İstanbul , Turkey
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Teucrium polium extract reverses symptoms of streptozotocin-induced diabetes in rats via rebalancing the Pdx1 and FoxO1 expressions. Biomed Pharmacother 2017; 93:1033-1039. [PMID: 28738518 DOI: 10.1016/j.biopha.2017.06.082] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2017] [Revised: 05/30/2017] [Accepted: 06/20/2017] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND AND OBJECTIVE Teucrium polium Lamiaceae. an antidiabetic traditional medicine was observed to stimulate insulin secretion and β-cell mass restoration in pancreatic of diabetic rats. Bioactive compounds in T. polium such as terpenoids and flavonoids have a wide range of antioxidant properties. Given this background, our research was aimed at probing the effective molecular mechanism of T. polium which in turn protects the pancreatic β-cells of diabetic rats through attenuation of streptozotocin-induced oxidative stress. MATERIALS AND METHODS Induction of diabetes by streptozotocin (STZ) injection followed by treatment of the rats with T. polium extract (0.5g/kg) and glibenclamide as a standard drug (600μg/kg) for six consecutive weeks. Besides, biochemical indexes including sera glucose and lipids were investigated once every two weeks. Moreover, oxidative stress markers were also measured in the sixth week of treatment to assess the antioxidant capacity of T. polium. Prior to sacrifice of rats, the oral glucose tolerance test was carried out and thereafter western blot analysis was performed on pancreatic tissues to detect the expression of JNK, FoxO1 and Pdx1 proteins in the experimental groups. RESULTS Oral administration of T. polium extract not only disclosed the significant anti-hyperglycemic potential of the plant, but also relieved dyslipidemia and oxidative stress related to diabetes. Furthermore, remarkable improvement of glucose tolerance was exhibited among the treated groups, confirming the presence of insulin in the blood. Subsequently, the effective molecular mechanism of T. polium was partially revealed by western blot analyses which detected considerable up-regulation of p-FoxO1 and Pdx1 proteins parallel to reduction of p-JNK expression among the treated diabetic rats. CONCLUSION This study demonstrates that T. polium extract is able to restore the β-cell mass and insulin secretion by regulation of pivotal transcription factor of the pancreatic β-cells Pdx1 in JNK pathway.
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Ojo OA, Ajiboye BO, Ojo AB, Oyinloye BE, Imiere OD, Adeyonu O. Ameliorative potential of Blighia sapida K.D. Koenig bark against pancreatic β-cell dysfunction in alloxan-induced diabetic rats. JOURNAL OF COMPLEMENTARY & INTEGRATIVE MEDICINE 2017; 14:/j/jcim.ahead-of-print/jcim-2016-0145/jcim-2016-0145.xml. [PMID: 28306534 DOI: 10.1515/jcim-2016-0145] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2016] [Accepted: 02/09/2017] [Indexed: 12/11/2022]
Abstract
Background In West Africa, the fruit, seed, leaf and stem of Blighia sapida K.D. Koenig are commonly used as remedy against a variety of diseases, including diabetes mellitus. This study investigated the ameliorative potential of B. sapida K.D. Koenig stem bark ethanol extract against pancreatic β-cell dysfunction in diabetic rats. Methods Diabetes was induced by intraperitoneal injection of alloxan (65 mg/kg body weight) for 21 days, and orally administered with glibenclamide (5 mg/kg body weight), 50-150 mg/kg body weight of B. sapida stem bark ethanol extract once daily for 21 days. Results The blood glucose levels of rats induced with alloxan were significantly and gradually reduced (p<0.05) in B. sapida stem bark ethanol extract treated animals at the dose of 50-150 mg/kg body weight, and in glibenclamide-treated animals. The significant increase in the lipid peroxidation (malonaldehyde), homeostasis model assessment-insulin resistance scores (HOMA-IR) and decrease in serum insulin, pancreatic β-cell scores as well as antioxidant marker enzymes in untreated diabetic rats compared to normal control rats were reversed by the B. sapida stem bark ethanol extract and glibenclamide. Similarly, histopathological changes in the pancreas were also reversed by the extract and glibenclamide. However, these effects were most prominent in the animals treated with 150 mg/kg body weight of B. sapida bark. Conclusions These findings indicate that B. sapida stem bark possess anti-hyperglycemic activity and exhibits ameliorative potential in managing diabetes.
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Ramadan BK, Schaalan MF, Tolba AM. Hypoglycemic and pancreatic protective effects of Portulaca oleracea extract in alloxan induced diabetic rats. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2017; 17:37. [PMID: 28077129 PMCID: PMC5225634 DOI: 10.1186/s12906-016-1530-1] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Accepted: 12/11/2016] [Indexed: 12/14/2022]
Abstract
BACKGROUND Diabetes is a major public health concern. In spite of continuous new drug development to treat diabetes, herbal remedies remain a potential adjunct therapy to maintain better glycemic control while also imparting few side-effects. Portulaca oleracea has been traditionally used to manage several diseases due to the anti-oxidant and anti-atherogenic effects it imparts. To better understand the mechanisms associated with potential protective effect of P. oleracea extract against diabetes, alloxan-induced diabetic rats were used in this study. METHODS Forty Wistar rats (male, 7-8-wk-old, 140-160 g) were divided into four groups (n = 10/group): Group I (control), Group II (P. oleracea-treated; gavaged with P. oleracea extract daily [at 250 mg/kg] for 4 weeks), Group III (diabetic control; daily IP injection of alloxan [at 75 mg/kg] for 5 days) and Group IV (P. oleracea-pre-treated diabetic; gavaged with P. oleracea extract daily [at 250 mg/kg] for 4 weeks and then daily IP injection of alloxan [at 75 mg/kg] for 5 days). Body weight, food consumption, blood (serum) levels of glucose, C peptide, Hb A1C, insulin, tumor necrosis factor (TNF)-α and interleukin (IL)-6 were determined for all groups. RESULTS The results indicated that while Hb A1C, serum levels of glucose, TNF-α and IL-6 were all significantly decreased in the P. oleracea-pre-treated diabetic rats, these hosts also had significant increases in C peptide and insulin compared to levels in the counterpart diabetic rats. These results were confirmed by the histopathological assessments which showed marked improvement of the destructive effect on pancreatic islet cells induced by alloxan. CONCLUSION P. oleracea extract is a general tissue protective and regeneartive agent, as evidenced by increasing β-cell mass and therefore improved the glucose metabolism. Thus, stimulation of Portulaca oleracea signaling in β- cells may be a novel therapeutic strategy for diabetes prevention.
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Affiliation(s)
- Basma K Ramadan
- Department of Physiology, Faculty of Medicine for Girls (Cairo), Al-Azhar University, Cairo, Egypt
| | - Mona F Schaalan
- Department of Biochemistry Faculty of Pharmacy, Misr International University, Km 28, Cairo-Ismailia road, Cairo PO Box 1, Heliopolis, Cairo, Egypt.
| | - Amina M Tolba
- Department of Anatomy, Faculty of Medicine for Girls (Cairo), Al-Azhar University, Cairo, Egypt
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Phytochemical screening and evaluation of cytotoxic and hypoglycemic properties of Mangifera indica peels. Asian Pac J Trop Biomed 2017. [DOI: 10.1016/j.apjtb.2016.09.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Bansode TS, Salalkar BK, Dighe P, Nirmal S, Dighe S. Comparative evaluation of antidiabetic potential of partially purified bioactive fractions from four medicinal plants in alloxan-induced diabetic rats. Ayu 2017; 38:165-170. [PMID: 30254399 PMCID: PMC6153906 DOI: 10.4103/ayu.ayu_18_17] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Background Syzygiumcumini, Terminaliachebula, Trigonellafoenumgraecum and Salvadora persica are medicinally important plants well known for their pharmacological activities. Aim The aim of this study is to compare the antidiabetic potential of partially purified bioactive fractions isolated from four targeted medicinal plants in diabetic rats. Methods Alloxan was administered (125 mg/kg, IP) in albino Wistar rats to produce diabetes. The partially purified bioactive fractions, namely S. cumini tannin fraction (ScTF), T. foenumgraecum (Fenugreek) saponin fraction (FgSF), T. chebula flavonoid fraction (TcFF) and S. persica flavonoid fraction (SpFF), were administered to diabetic rats with the dose of 100 mg/kg, per oral (PO) and the effect of the fractions on body weight, liver glycogen and serum glucose were studied up to 15 days. Results The results have indicated that diabetic rats treated with fractions showed a statistically significant (P < 0.05) decrease in serum glucose and increase in body weight and liver glycogen. Among ScTF, FgSF, TcFF and SpFF possesse better hypoglycemic activity in all models. Conclusion The present investigation reveals that flavonoid isolated from S. persica is useful in the management of diabetes mellitus because of ability to regulate glucose level and reduce related complications.
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Affiliation(s)
- Twinkle S Bansode
- Depratment of Biochemistry, Pravara Institute of Medical Sciences (DU), Ahmednagar, Maharashtra, India
| | - B K Salalkar
- Department of Biochemistry, Arts, Science, Commerce College, Ahmednagar, Maharashtra, India
| | - Pandurang Dighe
- Depratment of Biochemistry, Pravara Institute of Medical Sciences (DU), Ahmednagar, Maharashtra, India
| | - Sunil Nirmal
- Department of Pharmacology, Pravara Rural College of Pharmacy, Ahmednagar, Maharashtra, India
| | - Santosh Dighe
- Department of Pharmacology, Pravara Rural College of Pharmacy, Ahmednagar, Maharashtra, India
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Gupta P, Bala M, Gupta S, Dua A, Dabur R, Injeti E, Mittal A. Efficacy and risk profile of anti-diabetic therapies: Conventional vs traditional drugs—A mechanistic revisit to understand their mode of action. Pharmacol Res 2016; 113:636-674. [DOI: 10.1016/j.phrs.2016.09.029] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2016] [Revised: 09/23/2016] [Accepted: 09/23/2016] [Indexed: 12/17/2022]
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Najafian M, Najafian B, Najafian Z. The Effect of Aspalathin on Levels of Sugar and Lipids in Streptozotocin-Induced Diabetic and Normal Rats. ACTA ACUST UNITED AC 2016. [DOI: 10.17795/zjrms-4963] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Ebrahimi E, Shirali S, Afrisham R. Effect and Mechanism of Herbal Ingredients in Improving Diabetes Mellitus Complications. Jundishapur J Nat Pharm Prod 2016. [DOI: 10.17795/jjnpp-31657] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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44
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Effect and Mechanism of Herbal Ingredients in Improving Diabetes Mellitus Complications. Jundishapur J Nat Pharm Prod 2016. [DOI: 10.5812/jjnpp.31657] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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45
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Sheikh BY. The role of prophetic medicine in the management of diabetes mellitus: A review of literature. J Taibah Univ Med Sci 2016. [DOI: 10.1016/j.jtumed.2015.12.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
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Arsanjani Shirazi A, Nasiri M, Yazdanpanah L. Dermatological and musculoskeletal assessment of diabetic foot: A narrative review. Diabetes Metab Syndr 2016; 10:S158-S164. [PMID: 27016885 DOI: 10.1016/j.dsx.2016.03.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Accepted: 03/05/2016] [Indexed: 01/11/2023]
Abstract
AIMS Diabetic Foot Syndrome (DFS) is the most costly and devastating complication of diabetes mellitus (DM), which early effective assessment can reduce the severity of complications including ulceration and amputations. This study aimed to review dermatological and musculoskeletal assessment of diabetic foot. MATERIALS AND METHODS In this review article, we searched for articles published between March 1, 1980 and July 28, 2015 in PubMed, Science Direct, Embase, Web of Science, and Scopus, for both English and non-English language articles with the following keywords: "Diabetic foot syndrome", "Ulceration", "Amputation", "Foot assessment", "Skin disorders" and "Musculoskeletal deformities". RESULTS In dermatological dimension, most studies focused on elucidated changes in skin temperature, color, hardiness and turgor as well as common skin disorders such as Diabetic Dermopathy (DD), Necrobiosis Lipoidica Diabeticorum (NLD) and Diabetic Bullae (DB), which are common in diabetic patients and have high potential for leading to limb-threatening problems such as ulceration and infection. In musculoskeletal dimension, most studies focused on range of motion and muscle strength, gait patterns and as well as foot deformities especially Charcot osteoarthropathy (COA), which is the most destructive musculoskeletal complication of diabetes. CONCLUSION DFS as a common condition in DM patients lead to ulceration and lower limb amputation frequently unless a prompt and comprehensive assessment was taken. So that dermatological and musculoskeletal assessments are usually neglected in primary health care, these assessments should be done frequently to reduce the high risk of serious complications.
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Affiliation(s)
- Azam Arsanjani Shirazi
- Department of Midwifery, Nursing and Midwifery School, Dezful Islamic Azad University, Khouzastan, Iran.
| | - Morteza Nasiri
- Department of Operating Room, Paramedical School, Qom University of Medical Sciences, Qom, Iran.
| | - Leila Yazdanpanah
- Health Research Institute, Diabetes Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
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Buchholz T, Melzig MF. Medicinal Plants Traditionally Used for Treatment of Obesity and Diabetes Mellitus - Screening for Pancreatic Lipase and α-Amylase Inhibition. Phytother Res 2015; 30:260-6. [PMID: 26632284 DOI: 10.1002/ptr.5525] [Citation(s) in RCA: 75] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Revised: 10/26/2015] [Accepted: 11/05/2015] [Indexed: 01/09/2023]
Abstract
In order to find new pancreatic lipase (PL) and α-amylase inhibitors from natural sources for the treatment of obesity and related diseases as diabetes mellitus II, 23 medicinal plants with weight-reducing, serum glucose-reducing or related potential were investigated. Methanolic and water extracts of the plants were evaluated by using two in vitro test systems. Our findings have shown that the methanolic extract of Hibiscus sabdariffa L. (Malvaceae) showed high inhibitory activities to PL (IC50 : 35.8 ± 0.8 µg/mL) and α-amylase (IC50 : 29.3 ± 0.5 µg/mL). Furthermore, the methanolic extract of Tamarindus indica L. (Leguminosae) showed a high anti-lipase (IC50 : 152.0 ± 7.0 µg/mL) and the aqueous extract a high anti-amylase (IC50 : 139.4 ± 9.0 µg/mL) activity. This work provides a priority list of interesting plants for further study with respect to the treatment of obesity and associated diseases.
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Affiliation(s)
- Tina Buchholz
- Institute of Pharmacy, Freie Universitaet Berlin, Berlin, Germany
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Das S, Dutta M, Chaudhury K, De B. Metabolomic and chemometric study of Achras sapota L. fruit extracts for identification of metabolites contributing to the inhibition of α-amylase and α-glucosidase. Eur Food Res Technol 2015. [DOI: 10.1007/s00217-015-2581-0] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Ma KL, Zhang Y, Liu J, Wu Y, Hu ZB, Liu L, Liu BC. Inflammatory stress induces lipid accumulation in multi-organs of db/db mice. Acta Biochim Biophys Sin (Shanghai) 2015; 47:767-74. [PMID: 26341982 DOI: 10.1093/abbs/gmv079] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2015] [Accepted: 05/21/2015] [Indexed: 01/12/2023] Open
Abstract
Dyslipidemia and chronic inflammation play crucial roles in the progression of diabetes. This study aimed to investigate the effects of inflammatory stress on lipid accumulation in multi-organs in diabetes. Eight-week-old male db/db mice were randomly assigned to inflamed group with alternating day subcutaneous injection of 10% casein or control group with daily injection of distilled water. The lipid profile and plasma levels of inflammatory cytokines were determined using a clinical biochemical assay and enzyme-linked immunosorbent assay. The effects of inflammation on lipid accumulation in target organs were evaluated by hematoxylin-eosin staining, Oil Red O staining, Filipin staining, and a quantitative intracellular cholesterol assay. The protein expressions of low-density lipoprotein receptor (LDLr), sterol regulatory element binding protein-2 (SREBP-2), and SREBP-cleavage-activating protein (SCAP) in tissues were assessed by immunohistochemical staining and western blotting. Results showed that the serum levels of inflammatory cytokines were significantly elevated in casein-injected mice, suggesting that an inflamed diabetic model was established. Furthermore, the protein expressions of inflammatory cytokines in aortas, livers, kidneys, and intestines were significantly increased in inflamed group compared with control. Whereas the serum levels of lipid moieties in inflamed mice were not different compared with the control, inflammatory stress significantly increased lipid accumulation in aortas, livers, kidneys, and intestines, which coincided with increased protein expressions of LDLr, SREBP-2, and SCAP in these organs of inflamed mice. In conclusion, inflammation induces lipid accumulation in multi-organs of db/db mice from the circulation to peripheral tissues, potentially due to lipid redistribution mediated by the disruption of LDLr feedback regulation.
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Affiliation(s)
- Kun Ling Ma
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, Nanjing 210009, China
| | - Yang Zhang
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, Nanjing 210009, China
| | - Jing Liu
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, Nanjing 210009, China
| | - Yu Wu
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, Nanjing 210009, China
| | - Ze Bo Hu
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, Nanjing 210009, China
| | - Liang Liu
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, Nanjing 210009, China
| | - Bi Cheng Liu
- Institute of Nephrology, Zhong Da Hospital, Southeast University School of Medicine, Nanjing 210009, China
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Farshid AA, Tamaddonfard E. Histopathological and behavioral evaluations of the effects of crocin, safranal and insulin on diabetic peripheral neuropathy in rats. AVICENNA JOURNAL OF PHYTOMEDICINE 2015; 5:469-78. [PMID: 26468467 PMCID: PMC4599108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/18/2015] [Revised: 06/09/2015] [Accepted: 06/24/2015] [Indexed: 10/28/2022]
Abstract
OBJECTIVES Crocin and safranal, the major constituents of saffron, exert neuroprotective effects. In the present study, we investigated the effects of crocin and safranal (alone or in combination with insulin) on peripheral neuropathy in diabetic rats. MATERIALS AND METHODS Diabetes was induced by intraperitoneal (i.p.) injection of 60 mg/kg of streptozotocin (STZ) and confirmed by blood glucose level higher than 250 mg/dl. After confirmation of diabetes, crocin (30 mg/kg, i.p.), safranal (1 mg/kg, i.p.) (alone or in combination with insulin) and insulin (5 IU/kg, s.c.) were administered for eight weeks. Neuropathic pain was evaluated using acetone drop test. Histopathological changes of sciatic nerve were evaluated using light microscope. Blood glucose levels and sciatic nerve malondialdehyde (MDA) contents were also measured. RESULTS STZ caused cold allodynia, edema and degenerative changes of sciatic nerve, hyperglycemia and an elevation of sciatic nerve MDA levels. Crocin, safranal and insulin improved STZ-induced behavioral, histopathological and biochemical changes. Combined treatments produced more documented improving effects. CONCLUSION The results of the present study showed neuroprotective effects of crocin, safranal and insulin in a rat model of diabetic neuropathy. In addition, crocin and safranal enhanced the neuroprotective effect of insulin. The neuroprotective effects of theses chemical compounds could be associated with their anti-hyperglycemic and antioxidant properties.
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Affiliation(s)
- Amir Abbas Farshid
- Division of Pathology, Department of Pathobiology, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran
| | - Esmaeal Tamaddonfard
- Division of Physiology, Department of Basic Sciences, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran
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