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Shaik Mohamed Sayed UF, Moshawih S, Goh HP, Kifli N, Gupta G, Singh SK, Chellappan DK, Dua K, Hermansyah A, Ser HL, Ming LC, Goh BH. Natural products as novel anti-obesity agents: insights into mechanisms of action and potential for therapeutic management. Front Pharmacol 2023; 14:1182937. [PMID: 37408757 PMCID: PMC10318930 DOI: 10.3389/fphar.2023.1182937] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Accepted: 06/06/2023] [Indexed: 07/07/2023] Open
Abstract
Obesity affects more than 10% of the adult population globally. Despite the introduction of diverse medications aimed at combating fat accumulation and obesity, a significant number of these pharmaceutical interventions are linked to substantial occurrences of severe adverse events, occasionally leading to their withdrawal from the market. Natural products serve as attractive sources for anti-obesity agents as many of them can alter the host metabolic processes and maintain glucose homeostasis via metabolic and thermogenic stimulation, appetite regulation, pancreatic lipase and amylase inhibition, insulin sensitivity enhancing, adipogenesis inhibition and adipocyte apoptosis induction. In this review, we shed light on the biological processes that control energy balance and thermogenesis as well as metabolic pathways in white adipose tissue browning, we also highlight the anti-obesity potential of natural products with their mechanism of action. Based on previous findings, the crucial proteins and molecular pathways involved in adipose tissue browning and lipolysis induction are uncoupling protein-1, PR domain containing 16, and peroxisome proliferator-activated receptor-γ in addition to Sirtuin-1 and AMP-activated protein kinase pathway. Given that some phytochemicals can also lower proinflammatory substances like TNF-α, IL-6, and IL-1 secreted from adipose tissue and change the production of adipokines like leptin and adiponectin, which are important regulators of body weight, natural products represent a treasure trove for anti-obesity agents. In conclusion, conducting comprehensive research on natural products holds the potential to accelerate the development of an improved obesity management strategy characterized by heightened efficacy and reduced incidence of side effects.
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Affiliation(s)
| | - Said Moshawih
- PAPRSB Institute of Health Sciences, Universiti Brunei Darussalam, Gadong, Brunei
| | - Hui Poh Goh
- PAPRSB Institute of Health Sciences, Universiti Brunei Darussalam, Gadong, Brunei
| | - Nurolaini Kifli
- PAPRSB Institute of Health Sciences, Universiti Brunei Darussalam, Gadong, Brunei
| | - Gaurav Gupta
- School of Pharmacy, Suresh Gyan Vihar University, Jaipur, India
- Department of Pharmacology, Saveetha Institute of Medical and Technical Sciences, Saveetha Dental College and Hospitals, Saveetha University, Chennai, India
| | - Sachin Kumar Singh
- Faculty of Health, Australian Research Centre in Complementary and Integrative Medicine, University of Technology Sydney, Ultimo, NSW, Australia
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, India
| | - Dinesh Kumar Chellappan
- Department of Life Sciences, School of Pharmacy, International Medical University, Kuala Lumpur, Malaysia
| | - Kamal Dua
- Faculty of Health, Australian Research Centre in Complementary and Integrative Medicine, University of Technology Sydney, Ultimo, NSW, Australia
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Ultimo, NSW, Australia
- Uttaranchal Institute of Pharmaceutical Sciences, Uttaranchal University, Dehradun, India
| | - Andi Hermansyah
- Department of Pharmacy Practice, Faculty of Pharmacy, Universitas AirlanggaSurabaya, Indonesia
| | - Hooi Leng Ser
- School of Medical and Life Sciences, Sunway University, Sunway, Malaysia
| | - Long Chiau Ming
- PAPRSB Institute of Health Sciences, Universiti Brunei Darussalam, Gadong, Brunei
- Department of Pharmacy Practice, Faculty of Pharmacy, Universitas AirlanggaSurabaya, Indonesia
- School of Medical and Life Sciences, Sunway University, Sunway, Malaysia
| | - Bey Hing Goh
- Biofunctional Molecule Exploratory Research Group, School of Pharmacy, Monash University Malaysia, Bandar Sunway, Malaysia
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
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Sharma N, Behl T, Singh S, Kaur P, Zahoor I, Mohan S, Rachamalla M, Dailah HG, Almoshari Y, Salawi A, Alshamrani M, Aleya L. Targeting Nanotechnology and Nutraceuticals in Obesity: An Updated Approach. Curr Pharm Des 2022; 28:3269-3288. [PMID: 36200206 DOI: 10.2174/1381612828666221003105619] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Accepted: 08/22/2022] [Indexed: 01/28/2023]
Abstract
HYPOTHESIS This review article represents a brief layout of the risk factors and pathophysiology responsible for obesity, customary treatment strategies, and nanotechnology-based nutraceutical for the therapeutics of obesity. EXPERIMENTS An exhaustive search of the literature was done for this purpose, using Google Scholar, PubMed, and ScienceDirect databases. A literature study was conducted using publications published in peer-reviewed journals between 2000 and 2022. FINDINGS This was revealed that risk factors responsible for obesity were genetic abnormalities and environmental and socio-economic factors. Several research articles published between 2000 and 2022 were based on phytoconstituents-based nanoformulation for obesity therapeutics and, therefore, have been systematically compiled in this review. Various nutraceuticals like Garcinia cambogia, quercetin, resveratrol, capsaicin, Capsicum, Curcuma longa, Camella Sinensis, Zingiber officinalis, Citrus aurantium, Aegle marmelos, Coffea canephora, Asparagus officinalis, Gardenia jasminoides, Catha edulis, Clusia nemroisa, Rosmarinus officinalis, Cirsium setidens, Betula platyphylla, Tripterygium wilfordi possessing anti-obesity actions are discussed in this review along with their patents, clinical trials as well as their nanoformulation available. CONCLUSION This review illustrates that nanotechnology has a great propensity to impart a promising role in delivering phytochemicals and nutraceuticals in managing obesity conditions and other related disorders.
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Affiliation(s)
- Neelam Sharma
- Department of Pharmaceutics, MM College of Pharmacy, Maharishi Markandeshwar (Deemed to Be University), Mullana- Ambala, Haryana 133207, India
| | - Tapan Behl
- School of Health Sciences, University of Petroleum and Energy Studies, Dehradun, Uttarakhand, India
| | - Sukhbir Singh
- Department of Pharmaceutics, MM College of Pharmacy, Maharishi Markandeshwar (Deemed to Be University), Mullana- Ambala, Haryana 133207, India
| | - Parneet Kaur
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
| | - Ishrat Zahoor
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
| | - Syam Mohan
- School of Health Sciences, University of Petroleum and Energy Studies, Dehradun, Uttarakhand, India.,Substance Abuse and Toxicology Research Center, Jazan University, Jazan, Saudi Arabia
| | - Mahesh Rachamalla
- Department of Biology, University of Saskatchewan, 112 Science Place, Saskatoon, SK S7N 5E2, Canada
| | - Hamed Ghaleb Dailah
- Research and Scientific Studies Unit, College of Nursing, Jazan University, Jazan, Saudi Arabia
| | - Yosif Almoshari
- Department of Pharmaceutics, College of Pharmacy, Jazan University, Jazan, Saudi Arabia
| | - Ahmad Salawi
- Department of Pharmaceutics, College of Pharmacy, Jazan University, Jazan, Saudi Arabia
| | - Meshal Alshamrani
- Department of Pharmaceutics, College of Pharmacy, Jazan University, Jazan, Saudi Arabia
| | - Lotfi Aleya
- Chrono-environment Laboratory, Bourgogne Franche-Comté University, Besançon, France
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Alsalahi A, Chik Z, Mohamed Z, Giribabu N, Alshawsh MA. Cathinone: An alkaloid of Catha edulis (Khat) exacerbated hyperglycemia in diabetes-induced rats. Saudi J Biol Sci 2021; 28:4633-4643. [PMID: 34354450 PMCID: PMC8325054 DOI: 10.1016/j.sjbs.2021.04.072] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 04/22/2021] [Accepted: 04/22/2021] [Indexed: 11/19/2022] Open
Abstract
Cathinone, the main bioactive alkaloid of Catha edulis (khat), slightly increased the blood sugar levels of healthy animals, while its effect on blood sugar levels of diabetic animals has not yet been reported. This study investigated the in vitro inhibition of cathinone on α-amylase and α-glucosidase as well as its in vivo glycemic effects in diabetes-induced rats. Rats were fed on a high fat diet for five weeks, which then intraperitoneally injected with streptozotocin (30 mg/kg). Diabetic rats were distributed randomly into diabetic control (DC, n = 5), 10 mg/kg glibenclamide-treated group (DG, n = 5), and 1.6 mg/kg cathinone-treated group (CAD, n = 5). Additional healthy untreated rats (n = 5) served as a nondiabetic negative control group. Throughout the experiment, fasting blood sugar (FBS), caloric intake and body weight were recorded weekly. By the 28th day of treatment, rats were euthanized to obtain blood samples and pancreases. The results demonstrated that cathinone exerted a significantly less potent in vitro inhibition than α-acarbose against α-amylase and α-glucosidase. As compared to diabetic control group, cathinone significantly increased FBS of diabetic rats, while insulin levels of diabetic rats significantly decreased. In conclusion, cathinone was unable to induce a substantial in vitro inhibition on α-amylase and α-glucosidase, while it exacerbated the hyperglycemia of diabetes-induced rats.
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Affiliation(s)
- Abdulsamad Alsalahi
- Department of Pharmacology, Faculty of Medicine, University of Malaya, 50603 Kuala Lumpur, Malaysia
- Department of Pharmacology, Faculty of Pharmacy, Sana’a University, Mazbah District, 1247 Sana’a Secretariat, Yemen
| | - Zamri Chik
- Department of Pharmacology, Faculty of Medicine, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Zahurin Mohamed
- Department of Pharmacology, Faculty of Medicine, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Nelli Giribabu
- Department of Physiology, Faculty of Medicine, University of Malaya, 50603 Kuala Lumpur, Malaysia
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Alsalahi A, Alshawsh MA, Chik Z, Mohamed Z. Effect of Catha edulis (khat) on pancreatic functions in streptozotocin-induced diabetes in male Sprague-Dawley rats. Exp Anim 2018; 67:517-526. [PMID: 29973470 PMCID: PMC6219881 DOI: 10.1538/expanim.18-0057] [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] [Indexed: 01/24/2023] Open
Abstract
People consume Catha edulis (khat) for its euphoric effect, and type 1
diabetics have claimed that khat could reduce elevated levels of blood sugar. However,
khat has been suggested to provoke diabetes mellitus through destruction of pancreatic
β-cells. This study investigated the effect of an ethanolic khat extract on pancreatic
functions in type 1 diabetes (T1DM)-induced male Sprague-Dawley rats and to assess its
in vitro cytotoxicity in rat pancreatic β-cells (RIN-14B). T1DM was
induced in a total of 20 rats with a single intraperitoneal injection of 75 mg/kg of
streptozotocin. The rats were distributed into four groups (n=5): the diabetic control, 8
IU insulin-treated, 200 mg/kg khat-treated, and 400 mg/kg khat-treated groups. Another 5
rats were included as a nondiabetic control. Body weight, fasting blood sugar, and caloric
intake were recorded weekly. Four weeks after treatment, the rats were sacrificed, and
blood was collected for insulin, lipid profile, total protein, amylase, and lipase
analysis, while pancreases were harvested for histopathology. In vitro,
khat exerted moderate cytotoxicity against RIN-14B cells after 24 and 48 h but
demonstrated greater inhibition against RIN-14B cells after 72 h. Neither 200 mg/kg nor
400 mg/kg of khat produced any significant reduction in blood sugar; however, 200 mg/kg
khat extract provoked more destruction of pancreatic β-cells as compared with the diabetic
control. Ultimately, neither 200 mg/kg nor 400 mg/kg of khat extract could produce a
hypoglycemic effect in T1DM-induced rats. However, 200 mg/kg of khat caused greater
destruction of pancreatic β-cells, implying that khat may cause a direct cytotoxic effect
on pancreatic β-cells in vitro.
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Affiliation(s)
- Abdulsamad Alsalahi
- Department of Pharmacology, Faculty of Medicine, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Mohammed A Alshawsh
- Department of Pharmacology, Faculty of Medicine, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Zamri Chik
- Department of Pharmacology, Faculty of Medicine, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Zahurin Mohamed
- Department of Pharmacology, Faculty of Medicine, University of Malaya, 50603 Kuala Lumpur, Malaysia
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de Almeida MEF, Simão AA, Corrêa AD, de Barros Fernandes RV. Improvement of physiological parameters of rats subjected to hypercaloric diet, with the use of Pereskia grandifolia (Cactaceae) leaf flour. Obes Res Clin Pract 2015; 10:701-709. [PMID: 26616446 DOI: 10.1016/j.orcp.2015.10.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2015] [Revised: 10/13/2015] [Accepted: 10/30/2015] [Indexed: 01/31/2023]
Abstract
OBJECTIVE The aim of the present study was to investigate the anti-obesity effects of Pereskia grandifolia leaf flour on rats fed a hypercaloric diet. METHODS After a hypercaloric diet for 10 weeks, 21 animals were divided into the following groups and were fed the following diets for 4 weeks: control (CH), hypercaloric diet with P. grandifolia flour (PGF) 5%, and hypercaloric diet with PGF 10%. Several measurements were performed including body weight, food consumption, body mass index, Lee index, liver weight, liver and body moisture content, and body and hepatic lipid level. Data were analyzed by Tukey's test at 5% probability. RESULTS Rats fed PGF diet had decreased food consumption and body weight and showed lower body mass and Lee indices compared to control group. At week 2, weight of the PGF 10% group was statistically lower than the control group (CH). At week 4, the PGF 10% group demonstrated the highest body weight loss compared to the other two groups. There were no significant difference in total lipids and moisture level between the groups; however, rats fed PGF diet had lower hepatic lipids levels than control group and reduced liver weight. CONCLUSION This suggests that PGF induced weight loss and decreased hepatic lipid level and may be effective in treating obesity and related metabolic diseases.
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Toxicological Features of Catha edulis (Khat) on Livers and Kidneys of Male and Female Sprague-Dawley Rats: A Subchronic Study. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2012; 2012:829401. [PMID: 23259000 PMCID: PMC3522130 DOI: 10.1155/2012/829401] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/09/2012] [Revised: 10/15/2012] [Accepted: 10/22/2012] [Indexed: 11/18/2022]
Abstract
Hepato- and nephrotoxicity of Khat consumption (Catha edulis Forskal) have been evoked. Therefore, this study was conducted to evaluate such possible hepatorenal toxicity in female and male Sprague-Dawley rats (SD rats) focusing primarily on liver and kidney. In addition, female and male rats were investigated separately. Accordingly, forty-eight SD-rats (100–120 g) were distributed randomly into four groups of males and female (n = 12). Normal controls (NCs) received distilled water, whereas test groups received 500 mg/kg (low dose (LD)), 1000 mg/kg (medium dose (MD)), or 2000 mg/kg (high dose (HD)) of crude extract of Catha edulis orally for 4 weeks. Then, physical, biochemical, hematological, and histological parameters were analyzed. Results in Khat-fed rats showed hepatic enlargement, abnormal findings in serum aspartate aminotransferase (AST), and alkaline phosphatase (ALP) of male and female SD-rats and serum albumin (A) and serum creatinine (Cr) of female as compared to controls. In addition, histopathological abnormalities confirmed hepatic and renal toxicities of Khat that were related to heavy Khat consumption. In summary, Khat could be associated with hepatic hypertrophy and hepatotoxicity in male and female SD-rats and nephrotoxicity only in female SD-rats.
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