1
|
Bahreini N, Saghafi-Asl M, Nikpayam O, Safaei E, Sadra V, Fakhr L, Beyrampour-Basmenj H, Asgharian P, Asghari-Jafarabadi M. Effects of dried okra extract on lipid profile, renal function and some RAGE-related inflammatory genes expression in patients with diabetic nephropathy: A randomized controlled trial. Complement Ther Med 2024; 81:103027. [PMID: 38336011 DOI: 10.1016/j.ctim.2024.103027] [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: 07/24/2023] [Revised: 01/22/2024] [Accepted: 01/24/2024] [Indexed: 02/12/2024] Open
Abstract
BACKGROUND Diabetic nephropathy (DN) is a common complication of type 2 diabetes. Okra (Abelmoschus esculentus L) is reported to have anti-diabetic effects. The present study aimed to investigate the effects of dried okra extract (DOE) supplementation on lipid profile, renal function indices, and expression of inflammatory genes, as well as serum level of soluble Receptor for Advanced glycation end products (sRAGE) in patients with DN. METHODS In this triple-blind randomized placebo-controlled clinical trial, 64 eligible patients with DN received either 125 mg of DOE or placebo daily along with DN-related nutritional recommendations for 10 weeks. Changes in kidney indices including proteinuria and estimated glomerular filtration rate (eGFR), lipid profile, serum SRAGE, as well as the expression of RAGE, ICAM-1, and IL-1 genes were measured over 10 weeks. RESULTS After adjustment for the potential confounders, between-group analyses showed no significant differences in terms of lipid profile, kidney function indices, sRAGE, and RAGE-related inflammatory genes expression after 10 weeks. CONCLUSION Daily 125 mg DOE along with nutritional recommendations on top of usual care did not lead to significant changes in renal function indices, lipid profile, and inflammatory genes expression in patients with DN.
Collapse
Affiliation(s)
- Nazgol Bahreini
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran; Nutrition Research Center, School of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Maryam Saghafi-Asl
- Nutrition Research Center, School of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Clinical Nutrition, School of Nutrition and Food Sciences, Tabriz University of Medical Science, Tabriz, Iran; Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Omid Nikpayam
- Department of Nutritional Sciences, School of Health, Golestan University of Medical Sciences, Iran
| | - Ehsan Safaei
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran; Nutrition Research Center, School of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Vahideh Sadra
- Endocrine Research Center, Tabriz University of Medical Science, Tabriz, Iran
| | - Laleh Fakhr
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran; Nutrition Research Center, School of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hanieh Beyrampour-Basmenj
- Department of Medical Biotechnology, School of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Parina Asgharian
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Asghari-Jafarabadi
- Cabrini Research, Cabrini Health, VIC 3144, Australia; School of Public Health and Preventative Medicine, Faculty of Medicine, Nursing and Health Sciences, Monash University, VIC 3800, Australia; Road Traffic Injury Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| |
Collapse
|
2
|
Nikpayam O, Saghafi-Asl M, Safaei E, Bahreyni N, Sadra V, Asgharian P. The effect of Abelmoschus esculentus L. (Okra) extract supplementation on glycaemic control, inflammation, kidney function and expression of PPAR- α, PPAR- γ, TGF- β and Nrf-2 genes in patients with diabetic nephropathy: a triple-blind, randomised, placebo-controlled trial. Br J Nutr 2024; 131:648-657. [PMID: 37840235 DOI: 10.1017/s0007114523002180] [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: 10/17/2023]
Abstract
The present study was carried out to evaluate the effects of okra extract supplementation on kidney function, glycaemic control, inflammation and gene expression in patients with diabetic nephropathy (DN). A total of sixty-four DN patients based on the inclusion and exclusion criteria were recruited in this triple-blind placebo-controlled randomised clinical trial. Participants were randomly allocated to receive a 125-mg capsule of dried okra extract (DOE) (n 32) or placebo (n 32) for 10 weeks. At the baseline and endpoint of the trial, kidney function, glycaemic indices, inflammation and gene expression were evaluated. Statistical analysis showed that fasting blood glucose, HbA1c and insulin resistance significantly reduced in the DOE group although between-group analysis did not show any significant difference. Also, no significant difference was observed in urine protein, urine creatinine and high-sensitivity C-reactive protein between the two groups. Furthermore, gene expression of PPAR-α, PPAR-γ, transforming growth factor-beta and Nrf-2 did not affect the end of the trial in comparison with the baseline. According to the present study, DOE did not have impressive effects on kidney function, inflammation, glycaemic management and gene expression in patients with DN.
Collapse
Affiliation(s)
- Omid Nikpayam
- Department of Nutrition, School of Health, Golestan University of Medical Sciences, Gorgan, Iran
| | - Maryam Saghafi-Asl
- Nutrition Research Center, School of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Clinical Nutrition, School of Nutrition and Food Sciences, Tabriz University of Medical Science, Tabriz, Iran
| | - Ehsan Safaei
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Nazgol Bahreyni
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Vahideh Sadra
- Endocrine Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Parina Asgharian
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| |
Collapse
|
3
|
Hisamuddin ASDB, Naomi R, Manan KAB, Bahari H, Othman F, Embong H, Ismail A, Ahmed QU, Jumidil SH, Hussain MK, Zakaria ZA. The role of lutein-rich purple sweet potato leaf extract on the amelioration of diabetic retinopathy in streptozotocin-induced Sprague-Dawley rats. Front Pharmacol 2023; 14:1175907. [PMID: 37274105 PMCID: PMC10232805 DOI: 10.3389/fphar.2023.1175907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 04/21/2023] [Indexed: 06/06/2023] Open
Abstract
The objective of this study is to access the effect of purple sweet potato leaf (PSPL) extract on diabetic retinopathy (DR) of streptozotocin (STZ)-induced male Sprague-Dawley (SD) rats. In this study, rats were injected intraperitoneally with a single dose of 60 mg/kg STZ, and diabetes was confirmed on day 7. Rats were further divided into a few groups, which were then orally administered with one of the following treatments: 25 mg/kg of gliclazide (D25G), 200 mg/kg of PSPL extract (DT 200), and 400 mg/kg of PSPL extract (DT 400). However, the normal control (NS) and control group for diabetic (DNS) were given normal saline (NS) for 12 weeks. The results show that the treated group demonstrated a reduction in serum oral glucose tolerance test (OGTT) levels of DT 200 and DT 400, and an increase in the serum and retinal insulin levels, and restored oxidative stress markers in serum and retina on week 12. The PSPL extract exhibited protective effects in maintaining the kidney, liver, retina, and pancreas architecture in 400 mg/kg compared to the 200 mg/kg treated group and D25G, thereby restoring fully transparent lenses in diabetes-induced rats. In conclusion, 400 mg/kg PSPL is the most effective dose for the amelioration of STZ-induced DR pathology in male SD rats.
Collapse
Affiliation(s)
- Ahmad Safiyyu'd-din Bin Hisamuddin
- Borneo Research on Algesia, Inflammation and Neurodegeneration (BRAIN) Group, Faculty of Medicine and Health Sciences, Sabah Universiti Malaysia, Kota Kinabalu, Sabah, Malaysia
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Malaysia
| | - Ruth Naomi
- Department of Human Anatomy, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Malaysia
| | - Khairul Aiman Bin Manan
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Malaysia
| | - Hasnah Bahari
- Department of Human Anatomy, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Malaysia
| | - Fezah Othman
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Malaysia
| | - Hashim Embong
- Department of Emergency Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Amin Ismail
- Department of Nutrition, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Malaysia
| | - Qamar Uddin Ahmed
- Department of Pharmaceutical Chemistry, Kulliyah of Pharmacy, International Islamic University Malaysia, Kuantan, Pahang, Malaysia
| | - Siti Hadizah Jumidil
- Department of Human Anatomy, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Malaysia
| | - Mohd Khairi Hussain
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Malaysia
| | - Zainul Amiruddin Zakaria
- Borneo Research on Algesia, Inflammation and Neurodegeneration (BRAIN) Group, Faculty of Medicine and Health Sciences, Sabah Universiti Malaysia, Kota Kinabalu, Sabah, Malaysia
| |
Collapse
|
4
|
Mokgalaboni K, Lebelo SL, Modjadji P, Ghaffary S. Okra ameliorates hyperglycaemia in pre-diabetic and type 2 diabetic patients: A systematic review and meta-analysis of the clinical evidence. Front Pharmacol 2023; 14:1132650. [PMID: 37077817 PMCID: PMC10107009 DOI: 10.3389/fphar.2023.1132650] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Accepted: 03/22/2023] [Indexed: 04/05/2023] Open
Abstract
Background: Despite the use of available pharmaceutical drugs, high rates of metabolic diseases and cardiovascular disorders are alarming. This calls for alternative therapies that can attenuate these complications. Therefore, we investigated the beneficial effects of okra on glycaemic control in pre-diabetes and type 2 diabetes mellitus (T2D).Methods: MEDLINE and Scopus were searched for relevant studies. Collected data were analysed using RevMan and reported as mean difference and 95% confidence intervals (CI). Eight studies, including 331 patients with pre-diabetes or T2D, were eligible.Results: Our findings showed that okra treatment reduced the levels of fasting blood glucose: mean difference (MD) = −14.63 mg/dL; 95% CI (-25.25, −4.00, p = 0.007); I2 = 33%, p = 0.17 compared to placebo. Glycated haemoglobin, however, did not differ significantly between the groups: MD = 0.01%; 95%CI (-0.51, 0.54, p = 0.96); I2 = 23%, p = 0.28.Conclusion: this systematic review and meta-analysis found that okra treatment improves glycaemic control in patients with pre-diabetes or T2D. The findings suggest that okra may be used as a supplemental dietary nutrient, especially in pre-diabetic and T2D patients due to its potential to regulate hyperglycaemia.
Collapse
Affiliation(s)
- Kabelo Mokgalaboni
- Department of Life and Consumer Sciences, College of Agriculture and Environmental Sciences, Florida Campus, University of South Africa, Roodepoort, South Africa
- *Correspondence: Kabelo Mokgalaboni, ; Saba Ghaffary,
| | - Sogolo Lucky Lebelo
- Department of Life and Consumer Sciences, College of Agriculture and Environmental Sciences, Florida Campus, University of South Africa, Roodepoort, South Africa
| | - Perpetua Modjadji
- Non-Communicable Disease Research Unit, South African Medical Research Council, Cape Town, South Africa
- Department of Public Health, School of Healthcare Sciences, Sefako Makgatho Health Sciences University, Ga-Rankuwa, South Africa
| | - Saba Ghaffary
- Hematology and Oncology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- *Correspondence: Kabelo Mokgalaboni, ; Saba Ghaffary,
| |
Collapse
|
5
|
Ngakou Mukam J, Mvongo C, Nkoubat S, Fankem GO, Mfopa A, Noubissi PA, Fokam Tagne MA, Kamgang R, Essame Oyono JL. Early-induced diabetic obese rat MACAPOS 2. BMC Endocr Disord 2023; 23:64. [PMID: 36935499 PMCID: PMC10026472 DOI: 10.1186/s12902-022-01252-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 12/15/2022] [Indexed: 03/21/2023] Open
Abstract
BACKGROUND Diabetes mellitus is a metabolic disease characterized by an abnormally high blood glucose level. Glucose intolerance and insulin resistance are two characteristics that promote the onset and development of type 2 diabetes. The aim of this study was to create a diabetic rat model from obese rat MACAPOS 2. METHODS A group of rats was subjected to a high-fat diet (HFD) compared to a control group (NC) which received a normal diet. After 16 weeks of HFD, Lee index was calculated, obese rats were subjected to an oral glucose tolerance test (OGTT) and insulin tolerance test (ITT). One group of HFD rats (HFDZ) received streptozotocin 22.5 mg/kg (iv). One week later, weight gain, water and food intakes, urine volume and fasting blood glucose levels were evaluated. Animals were also subjected to glucose tolerance and insulin tolerance tests. RESULTS After 16 weeks of HFD, rats became obese, glucose intolerant and resistant to insulin. The body weight of rats was significantly high (+ 26.23%) compared to normal rats, glycemia remained significantly high (+ 45.46%, P < 0.01) two hours after administration of glucose in high-fat diet rats, water intake and urine volume were comparable to those of NC. In HFD, the streptozotocin injected after one week (HFDZ), amplified glucose intolerance. During ITT, glycemia remained significantly (P < 0.01) high from 15 min; and did not vary during the 60 min of ITT. The fasting glycemia one week after streptozotocin injection was significantly high (288 mg/dL) compared to HFD (114 mg/dL), associated whit a significant (P < 0.01) increase in water intake and 24 h urine volume. CONCLUSION These results showed that MACAPOS 2 associated with a low dose of streptozotocin (22.5 mg/dL) early leads to the diabetes in obese albinos Wistar rats and could be a real model to study the type 2 diabetes mellitus.
Collapse
Affiliation(s)
- Joseph Ngakou Mukam
- Animal Physiology Laboratory, Faculty of Science, University of Yaoundé I, Yaoundé, Cameroon
| | - Clémence Mvongo
- Department of Life Sciences, High Teacher Training College of Bertoua, University of Bertoua, Bertoua, Cameroon
| | - Sandrine Nkoubat
- Animal Physiology Laboratory, Faculty of Science, University of Yaoundé I, Yaoundé, Cameroon
| | - Gaëtan Olivier Fankem
- Animal Physiology Laboratory, Faculty of Science, University of Yaoundé I, Yaoundé, Cameroon
| | - Adamou Mfopa
- Laboratory of Human Metabolism and non-Communicable Diseases, Institute of Medical Research and Medicinal Plants Studies (IMPM), Yaoundé, Cameroon
| | - Paul Aimé Noubissi
- Department of Animal Biology and Conservation, Faculty of Science, University of Buea, Buea, Cameroon
| | | | - René Kamgang
- Animal Physiology Laboratory, Faculty of Science, University of Yaoundé I, Yaoundé, Cameroon
- Laboratory of Human Metabolism and non-Communicable Diseases, Institute of Medical Research and Medicinal Plants Studies (IMPM), Yaoundé, Cameroon
| | - Jean-Louis Essame Oyono
- Laboratory of Human Metabolism and non-Communicable Diseases, Institute of Medical Research and Medicinal Plants Studies (IMPM), Yaoundé, Cameroon
| |
Collapse
|
6
|
Batista KS, Cavalcante HC, Gomes JADES, Silva LADA, Cavalcanti NSDEH, Garcia EF, Menezes FNDD, Lima TASDE, Souza ELDE, Magnani M, Aquino JDES. Effects of supplementation of tropical fruit processing by-products on lipid profile, retinol levels and intestinal function in Wistar rats. AN ACAD BRAS CIENC 2023; 95:e20201684. [PMID: 37075372 DOI: 10.1590/0001-3765202320201684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Accepted: 04/08/2021] [Indexed: 04/21/2023] Open
Abstract
Fruits agro-industrial by-products may have a great variety of bioactive compounds that promote health. Thus, the effects of supplementation with acerola, cashew and guava processing by-products for 28 days on retinol level, lipid profile and on some aspects related to intestinal function in rats were investigated. The animals supplemented with different fruit by-products presented similar weight gain, faecal pH values and intestinal epithelial structures; however, they showed higher moisture and Lactobacillus spp. and Bifidobacterium spp. counts in faeces compared to the control group. Supplementation with the cashew by-product decreased the blood glucose, acerola and guava by-products reduced serum lipid levels and all fruit by-products tested increased serum and hepatic retinol. The results indicated that acerola and guava by-products possess a potential hypolipidemic effect. The three fruit by-products increase the hepatic retinol deposition and the faecal populations of beneficial bacterial groups and modulated aspects of intestinal function. The findings of this study can contribute to sustainable fruticulture and support future clinical studies with the supplementation of by-products.
Collapse
Affiliation(s)
- Kamila S Batista
- Universidade Federal da Paraíba, Departamento de Nutrição, Laboratório de Nutrição Experimental -LANEX, Cidade Universitária, 58051-900 João Pessoa, PB, Brazil
| | - Hassler Clementino Cavalcante
- Universidade Federal da Paraíba, Departamento de Nutrição, Laboratório de Nutrição Experimental -LANEX, Cidade Universitária, 58051-900 João Pessoa, PB, Brazil
| | - Jéssyca A DE Sousa Gomes
- Universidade Federal da Paraíba, Departamento de Nutrição, Laboratório de Nutrição Experimental -LANEX, Cidade Universitária, 58051-900 João Pessoa, PB, Brazil
| | - Laiane A DA Silva
- Universidade Federal da Paraíba, Departamento de Nutrição, Laboratório de Nutrição Experimental -LANEX, Cidade Universitária, 58051-900 João Pessoa, PB, Brazil
| | - Natália S DE Holanda Cavalcanti
- Universidade Federal da Paraíba, Departamento de Nutrição, Laboratório de Nutrição Experimental -LANEX, Cidade Universitária, 58051-900 João Pessoa, PB, Brazil
| | - Estefânia F Garcia
- Universidade Federal da Paraíba, Departamento de Gastronomia, Centro de Tecnologia e Desenvolvimento Regional, Cidade Universitária, 58058-600 João Pessoa, PB, Brazil
| | - Francisca Nayara D D Menezes
- Universidade Federal da Paraíba, Departamento de Nutrição, Laboratório de Microbiologia de Alimentos, Cidade Universitária, 58051-900 João Pessoa, PB, Brazil
| | - Tamires A S DE Lima
- Universidade Federal da Paraíba, Departamento de Nutrição, Laboratório de Nutrição Experimental -LANEX, Cidade Universitária, 58051-900 João Pessoa, PB, Brazil
| | - Evandro L DE Souza
- Universidade Federal da Paraíba, Departamento de Nutrição, Laboratório de Microbiologia de Alimentos, Cidade Universitária, 58051-900 João Pessoa, PB, Brazil
| | - Marciane Magnani
- Universidade Federal da Paraíba, Departamento de Engenharia de Alimentos, Laboratório de Processos Microbianos em Alimentos, Cidade Universitária, 58051-900 João Pessoa, PB, Brazil
| | - Jailane DE Souza Aquino
- Universidade Federal da Paraíba, Departamento de Nutrição, Laboratório de Nutrição Experimental -LANEX, Cidade Universitária, 58051-900 João Pessoa, PB, Brazil
| |
Collapse
|
7
|
LOU PX, ZHANG WW, CAO H, THAKUR K, SHANG YF, ZHANG JG, WEI ZJ. Insights into sub-chronic toxicity effects of enzymatic hydrolysate of peony seed meal derived Maillard reaction products in SD rats. FOOD SCIENCE AND TECHNOLOGY 2023. [DOI: 10.1590/fst.99622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
| | | | - Heng CAO
- Hefei University of Technology, China
| | - Kiran THAKUR
- Hefei University of Technology, China; North Minzu University, China
| | - Ya-Fang SHANG
- Hefei University of Technology, China; North Minzu University, China
| | - Jian-Guo ZHANG
- Hefei University of Technology, China; North Minzu University, China
| | - Zhao-Jun WEI
- Hefei University of Technology, China; North Minzu University, China
| |
Collapse
|
8
|
Natural okra-based hydrogel for chronic diabetic wound healing. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.108125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
|
9
|
Sereno AB, Dayane Pinto C, Antunes Andrade F, Aparecida Bertolazo da Silva M, Carvalho Garcia A, Carneiro Hecke Krüger C, José de Messias Reason I. Effects of okra (Abelmoschus esculentus (L.) Moench) on glycemic markers in animal models of diabetes: A systematic review. JOURNAL OF ETHNOPHARMACOLOGY 2022; 298:115544. [PMID: 35963420 DOI: 10.1016/j.jep.2022.115544] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 07/06/2022] [Accepted: 07/11/2022] [Indexed: 06/15/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Okra (Abelmoschus esculentus (L.) Moench) is traditionally used by different populations of Africa, América, Asia, and Europa to control diabetes. Although its action has been evaluated in several preclinical rodent trials, they have not been systematically analyzed. OBJECTIVE To evaluate the effectiveness of using okra in the treatment of diabetes in experimental rodent models. MATERIAL AND METHODS Controlled and randomized rodent animal trials with induced diabetes published between January 2000 and January 2021 were searched in the PubMed, Scopus, Scielo, and Web of Science databases. The search strategy included studies comprising the descriptors: animal species, diabetes induction method, intervention time, part of okra fruit used (whole, seeds, or peels), and dose as well as observed effects on biochemical and metabolic parameters. The systematic review was carried out according to the PRISMA statement, Cochrane bias risk tool (SYRCLE's RoB tool), and registered for systematic review protocols (PROSPERO). RESULTS A total of 326 articles were identified and after the exclusion of studies with gestational animal models, non-rodent animals, and non-diabetic animals, 11 studies involving 388 rodents were selected for the synthesis of results. The diabetes induction methods included streptozotocin, streptozotocin-nicotinamide, alloxan monohydrate, insulin resistance by high-fat diets or formulation described in AIN - 76, and feeding with high-fat food. Both Wistar albino rats, Sprague-Dawley males, and rats of both sexes of the Long-Evans lineage as well as male albino mice and C57BL females were included in the experiments. Studies showed that extracts of the fruit, the fresh fruit, or its various fractions had positive effects on the following markers: glycated hemoglobin, cholesterol, HOMA-IR, oral glucose tolerance test, and blood glucose, in acute (2 and 24 h), and chronic (up to 4 months) treatment. CONCLUSION An important hypoglycemic effect of okra in its various fractions on induced diabetes was observed by different authors. Moreover, okra promoted improvement in metabolic markers such as insulin sensitivity, lipid profile, and bodyweight loss.
Collapse
Affiliation(s)
- Aiane Benevide Sereno
- Postgraduate Program in Internal Medicine and Health Sciences, Federal University of Paraná (UFPR), R. Padre Camargo, 280, 80.069-900, Curitiba, Paraná, Brazil.
| | - Carla Dayane Pinto
- Postgraduate Program in Internal Medicine and Health Sciences, Federal University of Paraná (UFPR), R. Padre Camargo, 280, 80.069-900, Curitiba, Paraná, Brazil.
| | - Fabiana Antunes Andrade
- Laboratory of Molecular Immunopathology, Clinic Hospital, Federal University of Paraná (UFPR), R. Padre Camargo, 280, 80.069-900, Curitiba, Paraná, Brazil; Department of Medicine, Positive University (UP), R. Pedro Viriato Parigot de Souza, 5300, 81280-330, Curitiba, Paraná, Brazil.
| | - Michelli Aparecida Bertolazo da Silva
- Postgraduate Program in Internal Medicine and Health Sciences, Federal University of Paraná (UFPR), R. Padre Camargo, 280, 80.069-900, Curitiba, Paraná, Brazil; Tuiuti University of Paraná (UTP), R. Sydnei Antonio Rangel Santos, 238 - Santo Inacio, 82010-330, Curitiba, Paraná, Brazil.
| | - Amanda Carvalho Garcia
- Postgraduate Program in Internal Medicine and Health Sciences, Federal University of Paraná (UFPR), R. Padre Camargo, 280, 80.069-900, Curitiba, Paraná, Brazil.
| | - Cláudia Carneiro Hecke Krüger
- Postgraduate Program in Food and Nutrition, Federal University of Paraná (UFPR), Av. Lothário Meissner, 632, 80.210-170, Curitiba, Paraná, Brazil.
| | - Iara José de Messias Reason
- Postgraduate Program in Internal Medicine and Health Sciences, Federal University of Paraná (UFPR), R. Padre Camargo, 280, 80.069-900, Curitiba, Paraná, Brazil; Laboratory of Molecular Immunopathology, Clinic Hospital, Federal University of Paraná (UFPR), R. Padre Camargo, 280, 80.069-900, Curitiba, Paraná, Brazil.
| |
Collapse
|
10
|
Combinatorial interactive effect of vegetable and condiments with potato on starch digestibility and estimated in vitro glycemic response. JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2022. [DOI: 10.1007/s11694-022-01354-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
|
11
|
WANG H, CHEN W, LIN F, FENG J, CHEN L. Preparation of total saponins from Panax japonicus and their protective effects on learning and memory ability of aging mice. FOOD SCIENCE AND TECHNOLOGY 2022. [DOI: 10.1590/fst.51521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
| | | | | | | | - Lukui CHEN
- Southeast University, China; Southern Medical University, China
| |
Collapse
|
12
|
HUY DTN, MAHMUDIONO T, TRUNG ND, HACHEM K, HUSSEIN AR, HAFSAN H, WIDJAJA G, BOKOV D, DHAMIJA A, KADHIM MM. The role of fat-producing yeasts in reducing food industry waste. FOOD SCIENCE AND TECHNOLOGY 2022. [DOI: 10.1590/fst.112221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Dinh Tran Ngoc HUY
- Banking University of Ho Chi Minh City, Vietnam; International University of Japan, Japan
| | | | | | | | | | - Hafsan HAFSAN
- Universitas Islam Negeri Alauddin Makassar, Indonesia
| | - Gunawan WIDJAJA
- Universitas Indonesia, Indonesia; Universitas Krisnadwipayana, Indonesia
| | - Dmitry BOKOV
- Sechenov First Moscow State Medical University, Russian Federation; Biotechnology and Food Safety, Russian Federation
| | | | - Mustafa Mohammed KADHIM
- The Islamic University, Iraq; Osol Aldeen University College, Iraq; Kut University College, Iraq
| |
Collapse
|
13
|
HUANG M, DUAN J, YU B, ZHENG SL, CHEN Q, LIN F, ZENG N, LING BD. Clinical value of thalidomide on kk-rat model through TNF-a mediated inflammation approach. FOOD SCIENCE AND TECHNOLOGY 2022. [DOI: 10.1590/fst.06821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Min HUANG
- The Affiliated Hospital of Southwest Medical University, China; The Affiliated Hospital of Southwest Medical University, China
| | - Jie DUAN
- Pidu District People’s Hospital, China
| | - Bin YU
- Mianyang Central Hospital, China
| | - Si-lin ZHENG
- The Affiliated Hospital of Southwest Medical University, China
| | - Qi CHEN
- The Affiliated Hospital of Southwest Medical University, China
| | - Fei LIN
- Clinical Medical College and The First Affiliated Hospital of Chengdu Medical College, China
| | - Nan ZENG
- Chengdu University of Traditional Chinese Medicine, China
| | | |
Collapse
|
14
|
WU L, TANG B, LAI P, WENG M, ZHENG H, CHEN J, LI Y. Analysis of the effect of okra extract on the diversity of intestinal flora in diabetic rats based on 16S rRNA sequence. FOOD SCIENCE AND TECHNOLOGY 2022. [DOI: 10.1590/fst.00121] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Li WU
- Fujian Academy of Agricultural Sciences, China; Fujian Key Laboratory of Agricultural Product (Food) Processing, China; Fuzhou University, China; Fuzhou University, China
| | - Baosha TANG
- Fujian Academy of Agricultural Sciences, China; Fujian Key Laboratory of Agricultural Product (Food) Processing, China
| | - Pufu LAI
- Fujian Academy of Agricultural Sciences, China; Fujian Key Laboratory of Agricultural Product (Food) Processing, China
| | - Minjie WENG
- Fujian Academy of Agricultural Sciences, China; Fujian Key Laboratory of Agricultural Product (Food) Processing, China
| | - Hengguang ZHENG
- Fujian Academy of Agricultural Sciences, China; Fujian Key Laboratory of Agricultural Product (Food) Processing, China
| | - Junchen CHEN
- Fujian Academy of Agricultural Sciences, China; Fujian Key Laboratory of Agricultural Product (Food) Processing, China
| | - Yibin LI
- Fujian Academy of Agricultural Sciences, China; Fujian Key Laboratory of Agricultural Product (Food) Processing, China
| |
Collapse
|
15
|
BA L, CAO S, JI N, MA C, WANG R, LUO D. Exogenous melatonin treatment in the postharvest storage of pitaya fruits delays senescence and regulates reactive oxygen species metabolism. FOOD SCIENCE AND TECHNOLOGY 2022. [DOI: 10.1590/fst.15221] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
|
16
|
The effects of okra (Abelmoschus esculentus L.) products on glycemic control and lipid profile: A comprehensive systematic review. J Funct Foods 2021. [DOI: 10.1016/j.jff.2021.104795] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
|
17
|
Peter EL, Nagendrappa PB, Ajayi CO, Sesaazi CD. Total polyphenols and antihyperglycemic activity of aqueous fruits extract of Abelmoschus esculentus: Modeling and optimization of extraction conditions. PLoS One 2021; 16:e0250405. [PMID: 33861803 PMCID: PMC8051779 DOI: 10.1371/journal.pone.0250405] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Accepted: 04/06/2021] [Indexed: 01/02/2023] Open
Abstract
Aqueous fruits extract of Abelmoschus esculentus (L.) Moench (Malvaceae) has been used traditionally in several communities to alleviate elevated blood glucose levels. However, optimized extraction conditions have not been reported. Thus, this study determined the optimal extraction conditions for extracting polyphenols from A. esculentus fruits and evaluated antihyperglycemic activity in vivo. Extraction time, temperature, and solid-to-solvent ratio were optimized using Response Surface Methodology (RSM). Total polyphenols and flavonoids were quantified using the Folin-Ciocalteu and aluminium chloride colorimetric methods, respectively. The fingerprint and quantification of quercetin-a major flavonoid with an antihyperglycemic effect was done using the chromatographic method. The antihyperglycemic activity was determined in a high-fat diet-Streptozotocin rat model. The rats were assigned to five groups (n = 6): Group 1 and 2 were normal and diabetic control received distilled water 1 mL/100g; Treatment group 3 and 4 received standardized A. esculentus fruit extract (AEFE) at a dose of 100 and 200 mg/kg, respectively; Group 5 received 5 mg/kg glibenclamide. All treatments were given orally for 14 days. Measurements of fasting plasma glucose (FPG) and body weight were done weekly. The RSM quadratic model predicted total polyphenols of 22.16 mg GAE/g DW. At optimal conditions of a solid-to-solvent ratio of 5%, extraction time 1 h, and extraction temperature of 70°C, confirmation experiments yield 20.2 [95% CI; 16.7 to 27.6] mg GAE/g DW, implying the model successfully predicted total polyphenols. The extract HPLC fingerprint showed 13 characteristic peaks with 0.45 ± 0.02 μg/g DW of quercetin. Compared with diabetic control, the standardized AEFE reduced FPG level dose-dependently (P < 0.001) with an EC50 of 141.4 mg/kg. Together, at optimal extraction conditions, extract with a high content of total polyphenols and good antihyperglycemic activity can be obtained. Studies are needed to identify additional polyphenolic compounds and determine their antidiabetic effects.
Collapse
Affiliation(s)
- Emanuel L. Peter
- Department of Innovation, Technology Transfer and Commercialization, National Institute for Medical Research, Dar Es Salaam, Tanzania
| | - Prakash B. Nagendrappa
- Centre for Local Health Traditions & Policy, The University of Trans-Disciplinary Health Sciences and Technology (TDU), Bengaluru, India
| | - Clement Olusoji Ajayi
- Faculty of Medicine, Department of Pharmacy, Mbarara University of Science and Technology, Mbarara, Uganda
| | - Crispin Duncan Sesaazi
- Faculty of Medicine, Department of Pharmaceutical Sciences, Mbarara University of Science and Technology, Mbarara, Uganda
| |
Collapse
|