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Zhu X, Zhang D, Wang Y, Wang C, Liu X, Niu Y. Study on the signaling pathways involved in the anti-hyperglycemic effect of raspberry ketone on zebrafish using integrative transcriptome and metabolome analyses. Food Funct 2024; 15:9457-9470. [PMID: 39189875 DOI: 10.1039/d4fo01675k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/28/2024]
Abstract
Hyperglycemia leads to increased oxidative stress in mitochondria, an abnormal activation of intracellular inflammatory signals, and mediate multiple dysfunctions. Raspberry ketone (RK) is an aromatic phenolic compound found in many plants and could contribute to weight loss, restore impaired glucose tolerance, and has antioxidant properties. In our investigation, RK could greatly prevent islet, brain and other tissue damage caused by hyperglycemia in a zebrafish model with streptozotocin (STZ)-induced hyperglycemia. Body weight, insulin level, and food intake indexes were also restored by RK. Using transcriptome profiling, we found that RK administration could significantly attenuate STZ-induced insulin synthesis and pancreatic secretion as well as alter protein and carbohydrate metabolism. Metabolomics analysis results showed that RK could also prevent STZ-induced metabolic disorders, such as adenosine and sphingolipid metabolism. Integrative analysis of metabolome and transcriptome data and qRT-PCR validation of key metabolic regulatory genes (glut1, glut2, ctrb1, ccka, gck, pklr) confirmed that the purine pathway was the most enriched metabolic pathway, in which both metabolite accumulation and gene expression levels showed consistent change patterns upon RK treatment. Our study provides a new perspective for understanding the hypoglycemic mechanism of RK and may be helpful for investigating the modes of action of hypoglycemic drugs using the zebrafish hyperglycemia model.
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Affiliation(s)
- Xinliang Zhu
- College of Life Science, Northwest Normal University, Lanzhou 730070, Gansu Province, China.
- Department of Scientific Research, Gansu Provincial Hospital, Lanzhou 730000, Gansu Province, China
| | - Dengcai Zhang
- Department of Pathology, Gansu Provincial Maternity and Health Care Hospital, Lanzhou 730000, Gansu Province, China
| | - Yong Wang
- Pathology Center, Gansu University of Chinese Medicine, Lanzhou 730000, Gansu Province, China
| | - Chuangxin Wang
- College of Life Science, Northwest Normal University, Lanzhou 730070, Gansu Province, China.
| | - Xiaoxiao Liu
- Lanzhou Institute of Food and Drug Control, Lanzhou 740050, Gansu Province, China
| | - Yicong Niu
- The First Hospital of Lanzhou University, Department of General Surgery, Lanzhou 730000, Gansu, China.
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2
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Tan KH, Nishida R. A review on natural phenylbutanoid attractants: Occurrence, distribution, and role in nature, especially in relation to Dacini fruit fly behavior and pollination. J Chem Ecol 2024:10.1007/s10886-024-01499-6. [PMID: 38644437 DOI: 10.1007/s10886-024-01499-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 03/20/2024] [Accepted: 04/15/2024] [Indexed: 04/23/2024]
Abstract
The natural occurrence, distribution (within a plant) and roles of four phenylbutanoid compounds (anisyl acetone, cue-lure, raspberry ketone and zingerone) are elucidated for the Asia-Pacific and Oceania regions. These phenylbutanoids may act individually or in combination to attract true fruit fly males belonging to a tribe Dacini of subfamily Dacinae (Diptera: Tepritidae). Of special interest are the mutualistic interactions between the Dacini fruit fly males and the tropical daciniphilous (attracting exclusively Dacini fruit flies) orchids - leading to cross pollination for the orchids and enchanced mating success for the flies. When offered to male flies, anisyl acetone and cue-lure are generally converted to raspberry ketone. Upon consumption, raspberry ketone and zingerone are individually sequestered in the male rectal (pheromonal) gland unchanged. Attracted male flies readily imbibe the phenylbutanoid(s) in the floral synomone to compliment the endogenously synthesized male sex pheromonal components - to enhance attraction of conspecific females during courtship as well as attract conspecific males to form 'leks'. The phenylbutanoid(s) may also act as an allomone to deter vertebrate predators, especially geckos, besides possessing antimicrobial and antioxidant activities. Cue-lure, raspberry ketone and zingerone are important attractants/lures used in pest surveillance and mass trapping under the integrated pest management (IPM) program against quarantine Dacini fruit fly pest species, particularly Bactrocera tryoni and Zeugodacus cucurbitae.
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Affiliation(s)
- Keng Hong Tan
- Mobula Research Sdn. Bhd., 20, Jalan Tan Jit Seng, 11200 Tanjong Bungah, Penang, Malaysia.
| | - Ritsuo Nishida
- Laboratory of Chemical Ecology, Graduate School of Agriculture, Kyoto University, Kyoto, 606-8502, Japan
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3
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Askar ME, Ali SI, Younis NN, Shaheen MA, Zaher ME. Raspberry ketone ameliorates nonalcoholic fatty liver disease in rats by activating the AMPK pathway. Eur J Pharmacol 2023; 957:176001. [PMID: 37598925 DOI: 10.1016/j.ejphar.2023.176001] [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: 05/23/2023] [Revised: 08/08/2023] [Accepted: 08/17/2023] [Indexed: 08/22/2023]
Abstract
The current study aimed to investigate the effect of orally administered raspberry ketone (RK) on ameliorating nonalcoholic fatty liver disease (NAFLD) induced in rats by high-fat high-fructose diet (HFFD) in comparison to calorie restriction (CR) regimen. Thirty male Wistar rats were divided into two experimental groups; one was fed normal chow diet (NCD, n = 6) for 15 weeks to serve as normal control group and the other group was fed HFFD (n = 24) for 7 weeks to induce NAFLD. After induction, rats in the HFFD group were randomly allocated into four groups (n = 6 rats each). One group continued on HFFD feeding for 8 weeks (NAFLD control group). The remaining 3 groups received NCD, calorie-restricted diet, or NCD along with RK (55 mg/kg/day, orally) for 8 weeks. Like CR, RK effectively attenuated NAFLD and ameliorated the changes attained by HFFD. RK upregulated the expression of the phosphorylated AMP-activated protein kinase (P-AMPK) and fatty acid oxidation factors; peroxisome proliferator-activated receptor alpha (PPAR-α) and carnitine palmitoyltransferase-1 (CPT-1) and downregulated lipogenic factors; sterol regulatory element-binding protein-1c (SREBP-1c) and fatty acid synthase (FAS) in the hepatic tissue. Also, RK improved lipid profile parameters, liver enzymes and both body and liver tissue weights. Altogether, these findings suggest that oral administration of RK, along with normal diet, ameliorated NAFLD in a way similar to CR. This approach could be an alternative to CR in the management of NAFLD, overcoming the poor compliance to long term CR regimen.
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Affiliation(s)
- Mervat E Askar
- Department of Biochemistry, Faculty of Pharmacy, Zagazig University, 44519, Egypt
| | - Sousou I Ali
- Department of Biochemistry, Faculty of Pharmacy, Zagazig University, 44519, Egypt
| | - Nahla N Younis
- Department of Biochemistry, Faculty of Pharmacy, Zagazig University, 44519, Egypt.
| | - Mohamed A Shaheen
- Department of Medical Histology and Cell Biology, Faculty of Medicine, Zagazig University, 44519, Egypt
| | - Mahmoud E Zaher
- Department of Biochemistry, Faculty of Pharmacy, Zagazig University, 44519, Egypt
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4
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Laurel M, Mojzita D, Seppänen-Laakso T, Oksman-Caldentey KM, Rischer H. Raspberry Ketone Accumulation in Nicotiana benthamiana and Saccharomyces cerevisiae by Expression of Fused Pathway Genes. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:13391-13400. [PMID: 37656963 PMCID: PMC10510385 DOI: 10.1021/acs.jafc.3c02097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 08/11/2023] [Accepted: 08/22/2023] [Indexed: 09/03/2023]
Abstract
Raspberry ketone has generated interest in recent years both as a flavor agent and as a health promoting supplement. Raspberry ketone can be synthesized chemically, but the value of a natural nonsynthetic product is among the most valuable flavor compounds on the market. Coumaroyl-coenzyme A (CoA) is the direct precursor for raspberry ketone but also an essential precursor for flavonoid and lignin biosynthesis in plants and therefore highly regulated. The synthetic fusion of 4-coumaric acid ligase (4CL) and benzalacetone synthase (BAS) enables the channeling of coumaroyl-CoA from the ligase to the synthase, proving to be a powerful tool in the production of raspberry ketone in both N. benthamiana and S. cerevisiae. To the best of our knowledge, the key pathway genes for raspberry ketone formation are transiently expressed in N. benthamiana for the first time in this study, producing over 30 μg/g of the compound. Our raspberry ketone producing yeast strains yielded up to 60 mg/L, which is the highest ever reported in yeast.
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Affiliation(s)
- Markus Laurel
- VTT Technical Research Centre
of Finland Ltd., P.O. Box 1000, FI-02044 Espoo, Finland
| | - Dominik Mojzita
- VTT Technical Research Centre
of Finland Ltd., P.O. Box 1000, FI-02044 Espoo, Finland
| | | | | | - Heiko Rischer
- VTT Technical Research Centre
of Finland Ltd., P.O. Box 1000, FI-02044 Espoo, Finland
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Ershadfarkar M, Dadashi S, Dehghannya J, Khakbaz Heshmati M. Effect of combined convective hot air and far-infrared radiation on physic-chemical aspects of black raspberry powder produced by foam mat method. Heliyon 2023; 9:e19166. [PMID: 37654449 PMCID: PMC10466927 DOI: 10.1016/j.heliyon.2023.e19166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Revised: 08/08/2023] [Accepted: 08/15/2023] [Indexed: 09/02/2023] Open
Abstract
In recent years the use of hybrid drying methods has been noticed because of the improvement of the dried products quality. The effect of infrared (IR) power (0, 400, 600, and 800 W) in combination with convective hot air (60 °C, 3 m/s) on the quality properties of black raspberry pulp during foam mat drying was investigated in this study. According to the findings, increasing the IR power, (IR-CHA) had no effect on the moisture content, moisture ratio, or drying rate of the product; however, the effective moisture diffusion coefficient (Deff) was significantly increased. The effect of IR power on the physicochemical properties of black raspberry powder revealed that combining infrared with convective hot air (IR-CHA) improved the powder's flowability and total polyphenol content while decreasing its moisture content (p < 0.05). Furthermore, FESEM images revealed that the increase in IR power resulted in particles with smooth surfaces.
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Affiliation(s)
- Mahsa Ershadfarkar
- Department of Food Science and Technology, University of Tabriz, Tabriz, 51666-16471, Iran
| | - Saeed Dadashi
- Department of Food Science and Technology, University of Tabriz, Tabriz, 51666-16471, Iran
| | - Jalal Dehghannya
- Department of Food Science and Technology, University of Tabriz, Tabriz, 51666-16471, Iran
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Abdelraheem KM, Younis NN, Shaheen MA, Elswefy SE, Ali SI. Raspberry ketone improves non-alcoholic fatty liver disease induced in rats by modulating sphingosine kinase/sphingosine-1-phosphate and toll-like receptor 4 pathways. J Pharm Pharmacol 2023:7160323. [PMID: 37167472 DOI: 10.1093/jpp/rgad044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Accepted: 04/19/2023] [Indexed: 05/13/2023]
Abstract
OBJECTIVES To investigate the therapeutic role of calorie-restricted diet (CR) and raspberry ketone (RK) in non-alcoholic fatty liver disease (NAFLD) and the implication of sphingosine kinase-1 (SphK1)/sphingosine-1-phosphate (S1P) and toll-like receptor 4 (TLR4) signalling. METHODS NAFLD was induced by feeding rats high-fat-fructose-diet (HFFD) for 6 weeks. Rats were then randomly assigned to three groups (n = 6 each); NAFLD group continued on HFFD for another 8 weeks. CR group was switched to CR diet (25% calorie restriction) for 8 weeks and RK group was switched to normal diet and received RK (55 mg/kg/day; orally) for 8 weeks. Another six rats were used as normal control. KEY FINDINGS HFFD induced a state of NAFLD indicated by increased fat deposition in liver tissue along with dyslipidemia, elevated liver enzymes, oxidative stress and inflammation. Either CR diet or RK reversed these changes and decreased HFFD-induced elevation of hepatic SphK1, S1P, S1PR1 and TLR4. Of notice, RK along with a normal calorie diet was even better than CR alone in most studied parameters. CONCLUSIONS SphK1/S1P and TLR4 are interconnected and related to the establishment of HFFD-induced NAFLD and can be modulated by RK. Supplementation of RK without calorie restriction to patients with NAFLD unable to follow CR diet to achieve their treatment goals would be a promising therapeutic modality.
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Affiliation(s)
- Kareem M Abdelraheem
- Biochemistry Department, Faculty of Pharmacy, Sinai University - Qantara Branch, Ismailia, Egypt
| | - Nahla N Younis
- Biochemistry Department, Faculty of Pharmacy, Zagazig University, Zagazig, Egypt
| | - Mohamed A Shaheen
- Histology and Cell Biology Department, Faculty of Human Medicine, Zagazig University, Zagazig, Egypt
| | - Sahar E Elswefy
- Biochemistry Department, Faculty of Pharmacy, Zagazig University, Zagazig, Egypt
- Biochemistry Department, Faculty of Pharmacy, Delta University for Sciences and Technology, Gamasa, Egypt
| | - Sousou I Ali
- Biochemistry Department, Faculty of Pharmacy, Zagazig University, Zagazig, Egypt
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Hao L, Bello NT. Sex-Specific Effects on Total Body Fat Gain with 4-Week Daily Dosing of Raspberry Ketone [4-(4-Hydroxyphenyl)-2-butanone] and Ketogenic Diet in Mice. Nutrients 2023; 15:nu15071630. [PMID: 37049471 PMCID: PMC10097242 DOI: 10.3390/nu15071630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 03/16/2023] [Accepted: 03/21/2023] [Indexed: 03/30/2023] Open
Abstract
Background: Raspberry ketone (RK: [4-(4-Hydroxyphenyl)-2-butanone]) is a dietary supplement marketed for weight control. RK is structurally unrelated to the ketone bodies elevated with a ketogenic diet (KD). This study aims to determine whether RK oral supplementation with KD improves the weight loss outcomes in high-fat diet (HFD; 45% fat)-fed mice. Methods: Male and female C57BL/6J mice were HFD-fed for 9 weeks and switched to KD (80% fat) or a control diet (CD; 10% fat) or continued with the HFD for 4 weeks. Coincident with the diet switch, each diet group received oral RK (200 mg/kg/day) or a vehicle. Results: In male KD-fed mice, oral RK reduced body weight by ~6% (KD_Veh: −9.2 ± 1% vs. KD_RK: −15.1 ± 1%) and fat composition by ~18% (KD_Veh: −16.0 ± 4% vs. KD_RK: −34.2 ± 5%). HFD and KD feeding induced glucose intolerance in both male and female mice. Oral RK decreased the glucose area under the curve in female mice by ~6% (KD_Veh: 44,877 ± 957 vs. KD_RK: 42,040 ± 675 mg*min/dl). KD also had gut microbiota alterations with higher alpha diversity in males and more beta diversity with RK. These findings suggest sex-specific weight loss effects with RK and KD in mice.
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LC-MS/MS method for quantification of raspberry ketone in rat plasma: application to preclinical pharmacokinetic studies. Bioanalysis 2023; 15:83-98. [PMID: 36916612 DOI: 10.4155/bio-2022-0239] [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: 03/15/2023] Open
Abstract
Background: Raspberry ketone (RK), derived from red raspberry fruit (Rubus idaeus, family Rosaceae), is a reported potent antiobesity agent. This study aims to investigate method development, validation, and in vitro and in vivo pharmacokinetics in rats. Materials & methods: LC-MS/MS was used to conduct method development, validation, stability, and oral PK samples of RK in plasma analyses. Results: RK was highly soluble in Tris buffer and stable in gastrointestinal fluids as well as plasma. Rat liver microsomal stability of RK in phase I and II studies was 84.96 ± 2.39 and 69.98 ± 8.69%, respectively, after 60 min. Intestinal permeability was 4.39 ± 1.37 × 10-5 cm/s. Maximal concentration was 1591.02 ± 64.76 ng/ml, which was achieved after 1 h (time to maximal concentration), and absolute oral bioavailability was 86.28%. Conclusion: Pharmacokinetic data serve as a keystone for preclinical and clinical adjuvant therapy.
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Abdelaal SH, El-Kosasy AM, Abdelrahman MH. One-pot synthesis of N-doped carbon dots from microwave-irradiated egg white: application to raspberry ketone assay by photo-induced charge transfer fluorescence sensing. CHEMICAL PAPERS 2023. [DOI: 10.1007/s11696-023-02748-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
Abstract
AbstractIn this article, we designed one-step economic eco-harmonious microwave-assisted procedure to prepare nitrogen-doped carbon dots. We selected egg white as a cheap glycoprotein-based carbon source without the assistance of any chemicals. The synthetic process requires only 3 min during which carbonization and nitrogen doping are realized at the same time. The fabricated carbon dots were characterized for particle size, structure and photoluminescence behaviour. The nanodots were amorphous carbon-rich naturally nitrogen-doped particles with plentiful attached hydrophilic functional groups. They had average particle size 2.98 ± 1.57 nm, emitted strong blue fluorescence and showed excitation-dependant emission behaviour. What is more, the practical use of this system for raspberry ketone determination in commercially available weight loss dietary supplement product is demonstrated successfully. In ethylene glycol medium, the addition of raspberry ketone enhances the emission intensity of the synthesized carbon dots. The effect of reaction time and solvent was investigated. After optimization, the intensity enhancement was linear to the amount of raspberry ketone added to the assay solution in the concentration range of 100–1000 ng/ml, with detection and quantitation limits of 15.10 and 45.45 ng/ml, respectively. The method was validated in accordance to International Conference on Harmonization (ICH) guidelines and further applied to raspberry ketone capsules showing excellent results.
Graphical abstract
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Farha AK, Sui Z, Corke H. Raspberry Ketone-Mediated Inhibition of Biofilm Formation in Salmonella enterica Typhimurium-An Assessment of the Mechanisms of Action. Antibiotics (Basel) 2023; 12:antibiotics12020239. [PMID: 36830150 PMCID: PMC9952675 DOI: 10.3390/antibiotics12020239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 01/20/2023] [Accepted: 01/21/2023] [Indexed: 01/26/2023] Open
Abstract
Salmonella enterica is an important foodborne pathogen that causes gastroenteritis and systemic infection in humans and livestock. Salmonella biofilms consist of two major components-amyloid curli and cellulose-which contribute to the prolonged persistence of Salmonella inside the host. Effective agents for inhibiting the formation of biofilms are urgently needed. We investigated the antibiofilm effect of Raspberry Ketone (RK) and its mechanism of action against Salmonella Typhimurium 14028 using the Congo red agar method, Calcofluor staining, crystal violet method, pellicle assay, and the TMT-labeled quantitative proteomic approach. RK suppressed the formation of different types of Salmonella biofilms, including pellicle formation, even at low concentrations (200 µg/mL). Furthermore, at higher concentrations (2 mg/mL), RK exhibited bacteriostatic effects. RK repressed cellulose deposition in Salmonella biofilm through an unknown mechanism. Swimming and swarming motility analyses demonstrated reduced motility in RK-treated S. typhimurium. Proteomics analysis revealed that pathways involved in amyloid curli production, bacterial invasion, flagellar motility, arginine biosynthesis, and carbohydrate metabolism, were targeted by RK to facilitate biofilm inhibition. Consistent with the proteomics data, the expressions of csgB and csgD genes were strongly down-regulated in RK-treated S. typhimurium. These findings clearly demonstrated the Salmonella biofilm inhibition capability of RK, justifying its further study for its efficacy assessment in clinical and industrial settings.
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Affiliation(s)
- Arakkaveettil Kabeer Farha
- Department of Biotechnology and Food Engineering, Guangdong Technion—Israel Institute of Technology, 241 Daxue Road, Shantou 515063, China
- Department of Food Science & Technology, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Zhongquan Sui
- Department of Food Science & Technology, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
- Correspondence: (Z.S.); (H.C.)
| | - Harold Corke
- Department of Biotechnology and Food Engineering, Guangdong Technion—Israel Institute of Technology, 241 Daxue Road, Shantou 515063, China
- Faculty of Biotechnology and Food Engineering, Technion–Israel Institute of Technology, Haifa 3200003, Israel
- Correspondence: (Z.S.); (H.C.)
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Uramaru N, Kawashima A, Osabe M, Higuchi T. Rhododendrol, a reductive metabolite of raspberry ketone, suppresses the differentiation of 3T3‑L1 cells into adipocytes. Mol Med Rep 2023; 27:51. [PMID: 36633126 PMCID: PMC9879071 DOI: 10.3892/mmr.2023.12938] [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: 03/25/2022] [Accepted: 12/21/2022] [Indexed: 01/13/2023] Open
Abstract
Obesity is a serious medical condition worldwide, and a major risk factor for type 2 diabetes, metabolic syndrome, cancer and cardiovascular disease. In addition to changes in dietary habits and physical activity, consuming supplements to maintain good health and prevent obesity is important in modern society. Raspberry ketone (RK) is a natural phenolic ketone found in the European red raspberry (Rubus idaeus L.) and is hypothesized to prevent obesity when administered orally. The present study found that RK was reduced to rhododendrol (ROH) in human liver microsomes and cytosol. The present study investigated whether the metabolite ROH had anti‑adipogenic effects using mouse 3T3‑L1 cells. The effects of ROH or RK on lipid accumulation during differentiation of 3T3‑L1 pre‑adipocyte into adipocyte were determined using Oil Red O staining. CCAAT enhancer‑binding protein α (C/EBPα) and peroxisome proliferator‑activated receptor γ (PPARγ) mRNA and protein expression were examined using reverse transcription‑quantitative PCR and western blotting analysis, respectively. The present study revealed that ROH suppressed lipid accumulation in the cells, similar to RK. In addition, ROH suppressed the mRNA expression levels of C/EBPα and PPARγ in 3T3‑L1 adipocytes. Furthermore, ROH suppressed PPARγ protein expression in 3T3‑L1 adipocytes. These findings suggested that ROH is an active metabolite with an anti‑adipogenic effect, which may contribute to the anti‑obesity effect of orally administered RK. The present study indicated that it is important to understand the biological activity of the metabolites of orally administered compounds.
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Affiliation(s)
- Naoto Uramaru
- Division of Pharmaceutical Health Biosciences, Nihon Pharmaceutical University, Saitama 362-0806, Japan
| | - Azusa Kawashima
- Division of Pharmaceutical Health Biosciences, Nihon Pharmaceutical University, Saitama 362-0806, Japan
| | - Makoto Osabe
- Division of Pharmaceutical Health Biosciences, Nihon Pharmaceutical University, Saitama 362-0806, Japan
| | - Toshiyuki Higuchi
- Division of Pharmaceutical Health Biosciences, Nihon Pharmaceutical University, Saitama 362-0806, Japan,Correspondence to: Professor Toshiyuki Higuchi, Division of Pharmaceutical Health Biosciences, Nihon Pharmaceutical University, 10281 Komuro, Ina-machi, Kitaadachi-gun, Saitama 362-0806, Japan, E-mail:
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Kshatriya D, Hao L, Bello NT. Metabolic gene signature in white adipose tissue of oral doses raspberry ketone [4-(4-hydroxyphenyl)-2-butanone] that prevent diet-induced weight gain and induce loss of righting reflex. Food Chem Toxicol 2023; 171:113540. [PMID: 36460224 PMCID: PMC9793719 DOI: 10.1016/j.fct.2022.113540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 11/16/2022] [Accepted: 11/27/2022] [Indexed: 12/05/2022]
Abstract
Raspberry ketone (RK; [4-(4-hydroxyphenyl)-2-butanone]) is a synthetic flavoring agent and dietary supplement for weight control. This study investigated the metabolic signature of oral doses of RK that prevent weight gain or promote loss of righting reflex (LORR) in C57Bl/6J mice. Daily RK 200 mg/kg prevented high-fat diet (HFD; 45% Kcal fat) fed weight gain (∼8% reduction) over 35 days. RNA-seq of inguinal white adipose tissue (WAT) performed in males revealed 12 differentially expressed genes. Apelin (Apln) and potassium voltage-gated channel subfamily C member (Kcnc3) expression were elevated with HFD and normalized with RK dosing, which was confirmed by qPCR. Acute RK 640 mg/kg produced a LORR with a <5 min onset with a >30 min duration. Acute RK 200 mg/kg increased gene expression of Apln, Kcnc3, and nuclear factor erythroid 2-related factor 2 (Nrf2), but reduced acetyl-COA carboxylase (Acc1) and NAD(P)H quinone dehydrogenase 1 (Nqo1) in inguinal WAT. Acute RK 640 mg/kg elevated interleukin 6 (Il 6) and heme oxygenase 1 (Hmox1) expression, but reduced Nrf2 in inguinal and epididymal WAT. Our findings suggest that RK has a dose-dependent metabolic signature in WAT associated with either weight control or LORR.
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Affiliation(s)
- Dushyant Kshatriya
- Department of Animal Sciences, Nutritional Sciences Graduate Program, School of Environmental and Biological Sciences, Rutgers, The State University of New Jersey, New Brunswick, NJ, 08901, USA
| | - Lihong Hao
- Department of Animal Sciences, School of Environmental and Biological Sciences, Rutgers, The State University of New Jersey, New Brunswick, NJ, 08901, USA
| | - Nicholas T Bello
- Department of Animal Sciences, Nutritional Sciences Graduate Program, School of Environmental and Biological Sciences, Rutgers, The State University of New Jersey, New Brunswick, NJ, 08901, USA.
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Muacevic A, Adler JR, Ashouri D, Dhaliwal JSS, Desai A. Resistant Polymorphic Ventricular Tachycardia in a Patient Taking Raspberry Ketones Weight Loss Supplement. Cureus 2022; 14:e33089. [PMID: 36726887 PMCID: PMC9886374 DOI: 10.7759/cureus.33089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/29/2022] [Indexed: 12/30/2022] Open
Abstract
A 32-year-old female with no cardiac risk factors was admitted for treatment of a perianal abscess. During her hospital stay, she had a pulseless electrical activity arrest with a return of spontaneous circulation after one round of cardiopulmonary resuscitation (CPR). After transfer to the Intensive Care Unit (ICU), the patient had polymorphic ventricular tachycardia (PVT) requiring defibrillation shock. Her PVT was resistant to medical interventions. She was shocked a total of 33 times before her arrhythmia was terminated by passing a temporary transvenous pacemaker with overdrive pacing. After an extensive review of her history and presentation, no clear cause of her resistant arrhythmia was identified, however, she was found to have recently started taking over-the-counter weight loss supplements containing raspberry ketones which is a potentially cardiotoxic ingredient.
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BONETTI GABRIELE, HERBST KARENL, DONATO KEVIN, DHULI KRISTJANA, KIANI AYSHAKARIM, AQUILANTI BARBARA, VELLUTI VALERIA, MATERA GIUSEPPINA, IACONELLI AMERIGO, BERTELLI MATTEO. Dietary supplements for obesity. JOURNAL OF PREVENTIVE MEDICINE AND HYGIENE 2022; 63:E160-E168. [PMID: 36479472 PMCID: PMC9710396 DOI: 10.15167/2421-4248/jpmh2022.63.2s3.2757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Obesity and associated complications including diabetes, cardiometabolic dysfunction, disability, malignancy and premature mortality are considered epidemic. Research on obesity is therefore of worldwide importance. The development of obesity is a multifactorial phenomenon with contributions from biological, behavioral, genetic and environmental factors. Obesity and its associated issues require various lifestyle modifications and treatment options such medication, exercise, diet, surgery, pharmacological therapy and dietary supplements. Dietary supplements are considered an attractive alternative to traditional therapy due to their low toxicity profile and their accessibility to the general population. Dietary supplements may include one or more dietary ingredients. In this narrative review, we analyze the effects on obesity and obesity-related issues of various natural components. For example, there are a myriad of supplements that have been used as dietary supplements for weight loss such as minerals, vitamins, amino acids, metabolites, herbs, and plant extracts. This narrative review aims to present the benefits and side-effects of several ingredients of dietary supplements for weight loss and treatment of obesity. In particular, the mechanism of action, results of clinical trials, and possible side effects will be presented for the following ingredients: β-Glucans, bitter orange, calcium, vitamin D, chitosan, chromium, cocoa, coleus forskohlii, conjugate linoleic acid, ephedra sinica, fucoxanthin, garcinia cambogia, glucomannan, green coffee, green tea, guar gum, raspberry, hoodia gordonii, irvingia gabonensis, phenylpropylamine, pyruvate, white kidney bean.
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Affiliation(s)
- GABRIELE BONETTI
- MAGI’S LAB, Rovereto (TN), Italy
- Correspondence: Gabriele Bonetti, MAGI’S LAB, Rovereto (TN) 38068, Italy. E-mail:
| | - KAREN L. HERBST
- Total Lipedema Care, Beverly Hills (California) and Tucson (Arizona), USA
| | | | | | | | - BARBARA AQUILANTI
- UOSD Medicina Bariatrica, Fondazione Policlinico Agostino Gemelli IRCCS, Rome, Italy
| | - VALERIA VELLUTI
- UOSD Medicina Bariatrica, Fondazione Policlinico Agostino Gemelli IRCCS, Rome, Italy
| | - GIUSEPPINA MATERA
- UOSD Medicina Bariatrica, Fondazione Policlinico Agostino Gemelli IRCCS, Rome, Italy
| | - AMERIGO IACONELLI
- UOSD Medicina Bariatrica, Fondazione Policlinico Agostino Gemelli IRCCS, Rome, Italy
| | - MATTEO BERTELLI
- MAGI’S LAB, Rovereto (TN), Italy
- MAGI EUREGIO, Bolzano, Italy
- MAGISNAT, Peachtree Corners (GA), USA
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15
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Skaliter O, Livneh Y, Agron S, Shafir S, Vainstein A. A whiff of the future: functions of phenylalanine-derived aroma compounds and advances in their industrial production. PLANT BIOTECHNOLOGY JOURNAL 2022; 20:1651-1669. [PMID: 35638340 PMCID: PMC9398379 DOI: 10.1111/pbi.13863] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 05/15/2022] [Accepted: 05/25/2022] [Indexed: 05/19/2023]
Abstract
Plants produce myriad aroma compounds-odorous molecules that are key factors in countless aspects of the plant's life cycle, including pollinator attraction and communication within and between plants. For humans, aroma compounds convey accurate information on food type, and are vital for assessing the environment. The phenylpropanoid pathway is the origin of notable aroma compounds, such as raspberry ketone and vanillin. In the last decade, great strides have been made in elucidating this pathway with the identification of numerous aroma-related biosynthetic enzymes and factors regulating metabolic shunts. These scientific achievements, together with public acknowledgment of aroma compounds' medicinal benefits and growing consumer demand for natural products, are driving the development of novel biological sources for wide-scale, eco-friendly, and inexpensive production. Microbes and plants that are readily amenable to metabolic engineering are garnering attention as suitable platforms for achieving this goal. In this review, we discuss the importance of aroma compounds from the perspectives of humans, pollinators and plant-plant interactions. Focusing on vanillin and raspberry ketone, which are of high interest to the industry, we present key knowledge on the biosynthesis and regulation of phenylalanine-derived aroma compounds, describe advances in the adoption of microbes and plants as platforms for their production, and propose routes for improvement.
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Affiliation(s)
- Oded Skaliter
- Institute of Plant Sciences and Genetics in Agriculture, The Robert H. Smith Faculty of Agriculture, Food and EnvironmentThe Hebrew University of JerusalemRehovotIsrael
| | - Yarin Livneh
- Institute of Plant Sciences and Genetics in Agriculture, The Robert H. Smith Faculty of Agriculture, Food and EnvironmentThe Hebrew University of JerusalemRehovotIsrael
| | - Shani Agron
- Department of NeurobiologyThe Weizmann Institute of ScienceRehovotIsrael
| | - Sharoni Shafir
- B. Triwaks Bee Research Center, Department of Entomology, Institute of Environmental Sciences, Robert H. Smith Faculty of Agriculture, Food and EnvironmentThe Hebrew University of JerusalemRehovotIsrael
| | - Alexander Vainstein
- Institute of Plant Sciences and Genetics in Agriculture, The Robert H. Smith Faculty of Agriculture, Food and EnvironmentThe Hebrew University of JerusalemRehovotIsrael
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16
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Setati B, Moshapo PT, Holzapfel CW, Maumela MC. Palladium-catalyzed Heck reactions promoted by limonene-derived bicyclic phosphines. SYNTHETIC COMMUN 2022. [DOI: 10.1080/00397911.2022.2093646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Boitumelo Setati
- Department of Chemical Sciences, Research Centre for Synthesis and Catalysis, University of Johannesburg, Johannesburg, South Africa
| | - Paseka Thendo Moshapo
- Department of Chemical Sciences, Research Centre for Synthesis and Catalysis, University of Johannesburg, Johannesburg, South Africa
| | - Cedric Wahl Holzapfel
- Department of Chemical Sciences, Research Centre for Synthesis and Catalysis, University of Johannesburg, Johannesburg, South Africa
| | - Munaka Christopher Maumela
- Department of Chemical Sciences, Research Centre for Synthesis and Catalysis, University of Johannesburg, Johannesburg, South Africa
- Sasol (Pty) Ltd, Research & Technology, Sasolburg, South Africa
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17
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Qian L, Ouyang H, Gordils-Valentin L, Hong J, Jayaraman A, Zhu X. Identification of Gut Bacterial Enzymes for Keto-Reductive Metabolism of Xenobiotics. ACS Chem Biol 2022; 17:1665-1671. [PMID: 35687750 DOI: 10.1021/acschembio.2c00312] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Human gastrointestinal microbiota are known for the keto-reductive metabolism of small-molecule pharmaceuticals; however, the responsible enzymes remain poorly understood. Through in vitro biochemical assays, we report the identification of enzymes encoded in the genome of Clostridium bolteae that can reduce the ketone groups of nabumetone, hydrocortisone, and tacrolimus. The homologues to a newly identified enzyme (i.e., DesE) are potentially widely distributed in the gut microbiome. The selected enzymes display different levels of activities against additional chemicals such as two dietary compounds (i.e., raspberry ketone and zingerone), chemotherapeutic drug doxorubicin, and its aglycone metabolite doxorubicinone. Thus, our results expand the repertoire of enzymes that can reduce the ketone groups in small molecules and could serve as the basis for future personalized medicine approaches.
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Affiliation(s)
- Liangyu Qian
- Department of Chemical Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Huanrong Ouyang
- Department of Chemical Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Lois Gordils-Valentin
- Department of Chemical Engineering, Texas A&M University, College Station, Texas 77843, United States.,Interdisciplinary Graduate Program in Genetics and Genomics, Texas A&M University, College Station, Texas 77843, United States
| | - Joshua Hong
- Department of Biology, Texas A&M University, College Station, Texas 77843, United States
| | - Arul Jayaraman
- Department of Chemical Engineering, Texas A&M University, College Station, Texas 77843, United States.,Department of Biomedical Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Xuejun Zhu
- Department of Chemical Engineering, Texas A&M University, College Station, Texas 77843, United States.,Interdisciplinary Graduate Program in Genetics and Genomics, Texas A&M University, College Station, Texas 77843, United States
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18
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Kawarasaki S, Matsuo K, Kuwata H, Zhou L, Kwon J, Ni Z, Takahashi H, Nomura W, Kenmotsu H, Inoue K, Kawada T, Goto T. Screening of flavor compounds using Ucp1-luciferase reporter beige adipocytes identified 5-methylquinoxaline as a novel UCP1-inducing compound. Biosci Biotechnol Biochem 2022; 86:380-389. [PMID: 34935880 DOI: 10.1093/bbb/zbab216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Accepted: 12/13/2021] [Indexed: 11/12/2022]
Abstract
Uncoupling protein 1 (UCP1) in brown or beige adipocytes is a mitochondrial protein that is expected to enhance whole-body energy expenditure. For the high-throughput screening of UCP1 transcriptional activity regulator, we established a murine inguinal white adipose tissue-derived Ucp1-luciferase reporter preadipocyte line. Using this reporter preadipocyte line, 654 flavor compounds were screened, and a novel Ucp1 expression-inducing compound, 5-methylquinoxaline, was identified. Adipocytes treated with 5-methylquinoxaline showed increased Ucp1 mRNA expression levels and enhanced oxygen consumption. 5-Methylquinoxaline induced Ucp1 expression through peroxisome proliferator-activated receptor γ coactivator 1α (PGC1α), and 5-methylquinoxaline-induced PGC1α activation seemed to be partially regulated by its phosphorylation or deacetylation. Thus, our Ucp1-luciferase reporter preadipocyte line is a useful tool for screening of Ucp1 inductive compounds.
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Affiliation(s)
- Satoko Kawarasaki
- Laboratory of Molecular Function of Food, Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Uji, Kyoto, Japan
| | - Kazuki Matsuo
- Laboratory of Molecular Function of Food, Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Uji, Kyoto, Japan
| | - Hidetoshi Kuwata
- Laboratory of Molecular Function of Food, Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Uji, Kyoto, Japan
| | | | - Jungin Kwon
- Laboratory of Molecular Function of Food, Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Uji, Kyoto, Japan
| | - Zheng Ni
- Laboratory of Molecular Function of Food, Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Uji, Kyoto, Japan
| | - Haruya Takahashi
- Laboratory of Molecular Function of Food, Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Uji, Kyoto, Japan
| | - Wataru Nomura
- Laboratory of Molecular Function of Food, Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Uji, Kyoto, Japan
- Research Unit for Physiological Chemistry, The Center for the Promotion of Interdisciplinary Education and Research, Kyoto University, Kyoto, Japan
| | | | - Kazuo Inoue
- Laboratory of Molecular Function of Food, Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Uji, Kyoto, Japan
- Research Unit for Physiological Chemistry, The Center for the Promotion of Interdisciplinary Education and Research, Kyoto University, Kyoto, Japan
| | - Teruo Kawada
- Laboratory of Molecular Function of Food, Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Uji, Kyoto, Japan
- Research Unit for Physiological Chemistry, The Center for the Promotion of Interdisciplinary Education and Research, Kyoto University, Kyoto, Japan
| | - Tsuyoshi Goto
- Laboratory of Molecular Function of Food, Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Uji, Kyoto, Japan
- Research Unit for Physiological Chemistry, The Center for the Promotion of Interdisciplinary Education and Research, Kyoto University, Kyoto, Japan
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19
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Masuo S, Saga C, Usui K, Sasakura Y, Kawasaki Y, Takaya N. Glucose-Derived Raspberry Ketone Produced via Engineered Escherichia coli Metabolism. Front Bioeng Biotechnol 2022; 10:843843. [PMID: 35237585 PMCID: PMC8883332 DOI: 10.3389/fbioe.2022.843843] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Accepted: 01/18/2022] [Indexed: 11/13/2022] Open
Abstract
The demand for raspberry ketone (RK) as a plant-based natural flavoring agent is high, but natural RK is one of the most expensive flavor compounds due to its limited content in plants. Here, we produced RK de novo from simple carbon sources in Escherichia coli. We genetically engineered E. coli metabolism to overproduce the metabolic precursors tyrosine and p-coumaric acid and increase RK production. The engineered E. coli produced 19.3- and 1.9 g/L of tyrosine and p-coumaric acid from glucose, respectively. The p-coumaric acid CoA ligase from Agrobacterium tumefaciens and amino acid substituted benzalacetone synthase of Rhemu palmatum (Chinese rhubarb) were overexpressed in E. coli overproducing p-coumaric acid. The overexpression of fabF, encoding β-ketoacyl-acyl carrier protein synthetase II increased intracellular malonyl-CoA, the precursor of benzalacetone synthase for RK biosynthesis, and improved RK production. Fed-batch cultures given glucose as a carbon source produced 62 mg/L of RK under optimized conditions. Our production system is inexpensive and does not rely on plant extraction; thus, it should significantly contribute to the flavor and fragrance industries.
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20
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Tsai YC, Cheng PY, Chen JH, Lee YM, Yen MH. Raspberry ketone promotes FNDC5 protein expression via HO-1 upregulation in 3T3-L1 adipocytes. CHINESE J PHYSIOL 2022; 65:80-86. [DOI: 10.4103/cjp.cjp_95_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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21
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Yang XD, Ge XC, Jiang SY, Yang YY. Potential lipolytic regulators derived from natural products as effective approaches to treat obesity. Front Endocrinol (Lausanne) 2022; 13:1000739. [PMID: 36176469 PMCID: PMC9513423 DOI: 10.3389/fendo.2022.1000739] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Accepted: 08/23/2022] [Indexed: 11/13/2022] Open
Abstract
Epidemic obesity is contributing to increases in the prevalence of obesity-related metabolic diseases and has, therefore, become an important public health problem. Adipose tissue is a vital energy storage organ that regulates whole-body energy metabolism. Triglyceride degradation in adipocytes is called lipolysis. It is closely tied to obesity and the metabolic disorders associated with it. Various natural products such as flavonoids, alkaloids, and terpenoids regulate lipolysis and can promote weight loss or improve obesity-related metabolic conditions. It is important to identify the specific secondary metabolites that are most effective at reducing weight and the health risks associated with obesity and lipolysis regulation. The aims of this review were to identify, categorize, and clarify the modes of action of a wide diversity of plant secondary metabolites that have demonstrated prophylactic and therapeutic efficacy against obesity by regulating lipolysis. The present review explores the regulatory mechanisms of lipolysis and summarizes the effects and modes of action of various natural products on this process. We propose that the discovery and development of natural product-based lipolysis regulators could diminish the risks associated with obesity and certain metabolic conditions.
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Affiliation(s)
- Xi-Ding Yang
- Department of Pharmacy, Second Xiangya Hospital of Central South University, Changsha, China
- Phase I Clinical Trial Center, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Xing-Cheng Ge
- Xiangxing College, Hunan University of Chinese Medicine, Changsha, China
| | - Si-Yi Jiang
- Department of Pharmacy, Medical College, Yueyang Vocational Technical College, YueYang, China
| | - Yong-Yu Yang
- Department of Pharmacy, Second Xiangya Hospital of Central South University, Changsha, China
- Hunan Provincial Engineering Research Central of Translational Medical and Innovative Drug, The Second Xiangya Hospital of Central South University, Changsha, China
- *Correspondence: Yong-Yu Yang,
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22
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Piña-Contreras N, Martínez-Moreno AG, Ramírez-Anaya JDP, Espinoza-Gallardo AC, Valdés EHM. Raspberry (Rubus idaeus L.), a Promising Alternative in the Treatment of Hyperglycemia and Dyslipidemias. J Med Food 2021; 25:121-129. [PMID: 34941428 DOI: 10.1089/jmf.2021.0046] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Raspberry production and consumption have increased in recent years due to its polyphenol content such as anthocyanins and ketones, bioactive compounds that have been studied to reduce blood glucose levels and stabilize the blood lipid profile. The objective of this study was to systematically recover and review scientific evidence regarding the consumption of raspberry or its bioactive compounds and the action mechanisms involved in the hypoglycemic and lipid-lowering effects they present. Original articles from in vitro and in vivo enzyme inhibition studies, animal models, and human clinical studies were compiled in PubMed, Web of Science, and Science Direct databases. Studies showed satisfactory results regarding blood glucose level reduction after consumption of frozen or lyophilized raspberry, infusion of raspberry leaves, seed oil, as well as compounds, extracted from the fruit by inhibiting enzymes such as α-glucosidase and dipeptidyl peptidase-4 (DPP-4) and other mechanisms that increase insulin production and insulin sensitivity. However, regarding the lipid-lowering effect, the results were heterogeneous, mainly in terms of stabilization in triglyceride levels. However, a reduction in cholesterol and low-density lipoprotein levels is reported, as well as an increase in high-density lipoproteins. According to the results, raspberry can be included in the nonpharmacological treatment of hyperglycemia and dyslipidemias; however, further research is considered necessary.
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Affiliation(s)
- Norma Piña-Contreras
- Behavioral Feeding and Nutrition Research Institute (IICAN), South University Center, University of Guadalajara, Ciudad Guzmán, Jalisco, Mexico
| | - Alma Gabriela Martínez-Moreno
- Behavioral Feeding and Nutrition Research Institute (IICAN), South University Center, University of Guadalajara, Ciudad Guzmán, Jalisco, Mexico
| | - Jessica Del Pilar Ramírez-Anaya
- Department of Computational Sciences and Technological Innovation, South University Center, University of Guadalajara, Guadalajara, Jalisco, Mexico
| | - Ana Cristina Espinoza-Gallardo
- Behavioral Feeding and Nutrition Research Institute (IICAN), South University Center, University of Guadalajara, Ciudad Guzmán, Jalisco, Mexico
| | - Elia Herminia Miramontes Valdés
- Behavioral Feeding and Nutrition Research Institute (IICAN), South University Center, University of Guadalajara, Ciudad Guzmán, Jalisco, Mexico
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23
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Li X, Wei T, Wu M, Chen F, Zhang P, Deng ZY, Luo T. Potential metabolic activities of raspberry ketone. J Food Biochem 2021; 46:e14018. [PMID: 34913499 DOI: 10.1111/jfbc.14018] [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: 09/17/2021] [Revised: 10/30/2021] [Accepted: 11/01/2021] [Indexed: 12/11/2022]
Abstract
Novel food and food compounds interventions have attracted a lot of attention nowadays for the prevention and treatment of metabolic diseases. Raspberry ketone (RK) is aromatic compound found within red fruits and berries, has been used as an over-the-counter product for weight loss. However, actually, the effect of RK on weight loss is still controversial, and the mechanism is largely unknown. Besides, in vivo and in vitro studies have demonstrated the beneficial effect of RK on the development of other metabolic diseases. In this review, we comprehensively highlighted the synthesis, bioavailability, and metabolism of RK, and summarized the progress made in our understanding of the potential biological activities of RK, including antiobesity, antidiabetes, cardioprotection, and hepatoprotection, as well as their underlying mechanisms. This paper provides a critical overview about the current findings and proposes the future studies in the area of RK on human health. PRACTICAL APPLICATIONS: Raspberry ketone (RK) has been used for weight control for years, but this effect is controversial considering food intake. Additionally, RK is beneficial for T2DM, liver and heart injury. The underlying mechanisms of the protective effect of RK including accelerating fatty acid oxidation, balancing serum glucose level, anti-inflammation, antioxidant process, and so on. In this context, we provide a comprehensive analysis of the benefits of RK against many metabolic diseases and discuss the underlying molecular mechanisms. We hope our work will be helpful for further researches on RK and improve its public recognition.
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Affiliation(s)
- Xiaoping Li
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
| | - Teng Wei
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
| | - Min Wu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
| | - Fang Chen
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China.,School of Public Health, Nanchang University, Nanchang, China
| | - Peng Zhang
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
| | - Ze-Yuan Deng
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
| | - Ting Luo
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
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24
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Hao L, Bello NT. Reduced Body Fat and Epididymal Adipose Apelin Expression Associated With Raspberry Ketone [4-(4-Hydroxyphenyl)-2-Butanone] Weight Gain Prevention in High-Fat-Diet Fed Mice. Front Physiol 2021; 12:771816. [PMID: 34887778 PMCID: PMC8650585 DOI: 10.3389/fphys.2021.771816] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Accepted: 10/19/2021] [Indexed: 11/18/2022] Open
Abstract
Raspberry ketone [4-(4-hydroxyphenyl)-2-butanone] is a natural aromatic compound found in raspberries and other fruits. Raspberry ketone (RK) is synthetically produced for use as a commercial flavoring agent. In the United States and other markets, it is sold as a dietary supplement for weight control. The potential of RK to reduce or prevent excessive weight gain is unclear and could be a convergence of several different actions. This study sought to determine whether acute RK can immediately delay carbohydrate hyperglycemia and reduce gastrointestinal emptying. In addition, we explored the metabolic signature of chronic RK to prevent or remedy the metabolic effects of diet-induced weight gain. In high-fat diet (HFD; 45% fat)-fed male mice, acute oral gavage of RK (200 mg/kg) reduced hyperglycemia from oral sucrose load (4 g/kg) at 15 min. In HFD-fed female mice, acute oral RK resulted in an increase in blood glucose at 30 min. Chronic daily oral gavage of RK (200 mg/kg) commencing with HFD access (HFD_RK) for 11 weeks resulted in less body weight gain and reduced fat mass compared with vehicle treated (HFD_Veh) and chronic RK starting 4 weeks after HFD access (HFD_RKw4) groups. Compared with a control group fed a low-fat diet (LFD; 10% fat) and dosed with vehicle (LFD_Veh), glucose AUC of an oral glucose tolerance test was increased with HFD_Veh, but not in HFD_RK or HFD_RKw4. Apelin (Apln) gene expression in epididymal white adipose tissue was increased in HFD_Veh, but reduced to LFD_Veh levels in the HFD_RK group. Peroxisome proliferator activated receptor alpha (Ppara) gene expression was increased in the hepatic tissue of HFD_RK and HFD_RKw4 groups. Overall, our findings suggest that long term daily use of RK prevents diet-induced weight gain, normalizes high-fat diet-induced adipose Apln, and increases hepatic Ppara expression.
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Affiliation(s)
- Lihong Hao
- Department of Animal Sciences, School of Environmental and Biological Sciences, Rutgers, The State University of New Jersey, New Brunswick, NJ, United States
| | - Nicholas T Bello
- Department of Animal Sciences, School of Environmental and Biological Sciences, Rutgers, The State University of New Jersey, New Brunswick, NJ, United States
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25
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Yuan B, Zhao D, Lyu W, Yin Z, Kshatriya D, Simon JE, Bello NT, Wu Q. Development and validation of a micro-QuEChERS method with high-throughput enhanced matrix removal followed with UHPLC-QqQ-MS/MS for analysis of raspberry ketone-related phenolic compounds in adipose tissues. Talanta 2021; 235:122716. [PMID: 34517584 DOI: 10.1016/j.talanta.2021.122716] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 07/11/2021] [Accepted: 07/12/2021] [Indexed: 11/28/2022]
Abstract
Raspberry ketone (RK) is a major flavor compound in red raspberries, and it has been marketed as a popular weight-loss dietary supplement with high potential in accumulating in fatty tissues. However, challenges in extracting and characterizing RK and its associated phenolic compounds in fatty tissues persist due to the complex matrix effect. In this work, we reported a high-throughput sample preparation method for RK and 25 related phenolic compounds in white adipose tissues using an improved micro-scale QuEChERS (quick, efficient, cheap, easy, rugged and safe) approach with enhanced matrix removal (EMR)-lipid cleanup in 96-well plates, followed by UHPLC-QqQ-MS/MS analysis. The absolute recovery was 73-105% at the extraction step, and achieved 71-96% at the EMR cleanup step. The EMR cleanup removed around 66% of total lipids in the acetonitrile extract as profiled by UHPLC-QTOF-MS/MS. The innovative introduction of a reversed-phase C18 sorbent into the extract significantly improved the analytes' recovery during SpeedVac drying. The final accuracy achieved 80-120% for most analytes. Overall, this newly developed and validated method could serve as a powerful tool for analyzing RK and related phenolic compounds in fatty tissues.
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Affiliation(s)
- Bo Yuan
- New Use Agriculture and Natural Plant Products Program, Department of Plant Biology and Center for Agriculture Food Ecosystems, Rutgers, The State University of New Jersey, 59 Dudley Road, New Brunswick, NJ, 08901, USA; Department of Food Science, Rutgers, The State University of New Jersey, 65 Dudley Road, New Brunswick, NJ, 08901, USA
| | - Danyue Zhao
- New Use Agriculture and Natural Plant Products Program, Department of Plant Biology and Center for Agriculture Food Ecosystems, Rutgers, The State University of New Jersey, 59 Dudley Road, New Brunswick, NJ, 08901, USA; Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong.
| | - Weiting Lyu
- New Use Agriculture and Natural Plant Products Program, Department of Plant Biology and Center for Agriculture Food Ecosystems, Rutgers, The State University of New Jersey, 59 Dudley Road, New Brunswick, NJ, 08901, USA; Department of Medicinal Chemistry, Rutgers, The State University of New Jersey, 160 Frelinghuysen Road, Piscataway, NJ, 08854, USA
| | - Zhiya Yin
- New Use Agriculture and Natural Plant Products Program, Department of Plant Biology and Center for Agriculture Food Ecosystems, Rutgers, The State University of New Jersey, 59 Dudley Road, New Brunswick, NJ, 08901, USA; Department of Food Science, Rutgers, The State University of New Jersey, 65 Dudley Road, New Brunswick, NJ, 08901, USA
| | - Dushyant Kshatriya
- Department of Animal Sciences and Nutritional Sciences, School of Environmental and Biological Sciences,
Rutgers University, 84 Lipman Drive, New Brunswick, NJ, 08901, USA
| | - James E Simon
- New Use Agriculture and Natural Plant Products Program, Department of Plant Biology and Center for Agriculture Food Ecosystems, Rutgers, The State University of New Jersey, 59 Dudley Road, New Brunswick, NJ, 08901, USA; Department of Medicinal Chemistry, Rutgers, The State University of New Jersey, 160 Frelinghuysen Road, Piscataway, NJ, 08854, USA
| | - Nicholas T Bello
- Department of Animal Sciences and Nutritional Sciences, School of Environmental and Biological Sciences,
Rutgers University, 84 Lipman Drive, New Brunswick, NJ, 08901, USA
| | - Qingli Wu
- New Use Agriculture and Natural Plant Products Program, Department of Plant Biology and Center for Agriculture Food Ecosystems, Rutgers, The State University of New Jersey, 59 Dudley Road, New Brunswick, NJ, 08901, USA; Department of Food Science, Rutgers, The State University of New Jersey, 65 Dudley Road, New Brunswick, NJ, 08901, USA; Department of Medicinal Chemistry, Rutgers, The State University of New Jersey, 160 Frelinghuysen Road, Piscataway, NJ, 08854, USA.
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Abdelaal SH, El Azab NF, Hassan SA, El-Kosasy AM. Quality control of dietary supplements: An economic green spectrofluorimetric assay of Raspberry ketone and its application to weight variation testing. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 261:120032. [PMID: 34111836 DOI: 10.1016/j.saa.2021.120032] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 05/25/2021] [Accepted: 05/26/2021] [Indexed: 06/12/2023]
Abstract
Although Dietary supplements are readily accessible and extensively used worldwide, they are inadequately regulated and consumers are victims of manufacturers' fraud. Thus, quality regulations are required to ensure safety of products available to the public. We propose the first native spectrofluorimetric quality control assay of raspberry ketone, a popular dietary supplement ingredient for weight loss. This work relies on the constant wavelength synchronous scan of the Raspberry Ketone native fluorescence, overcoming the demerits of conventional excitation/ emission spectra. For the best measurement conditions, several parameters were optimized including Δλ value, diluting solvent, medium pH and the effect of surfactants/ macromolecules. In aqueous medium (Δλ = 110 nm), a linear relationship exists between synchronous fluorescence intensity at peak maximum 405.6 nm and solution concentration in the range 300-1500 ng/mL. Method sensitivity was recorded with LOD and LOQ values 60.63 and 183.72 ng/mL; respectively. Validation was done in accordance to International Conference on Harmonization (ICH) guidelines. This simple procedure was successfully applied to the analysis of Raspberry Ketone in commercially available dietary supplement capsules with average recovery 98.67% ± 1.74 and further extended to weight variation testing following the official United States Pharmacopeial (USP) guidelines. Finally, green assessment was done using the ''Analytical Eco-scale'' tool. The total score was 89/100 points revealing excellent greenness of our proposal. Our proposal is simple, eco-friendly and cheap. It can be conveniently adopted for routine quality control practices especially in developing countries.
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Affiliation(s)
- Sarah H Abdelaal
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt.
| | - Noha F El Azab
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Said A Hassan
- Department of Analytical Chemistry, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Amira M El-Kosasy
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
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Production of raspberry ketone by redirecting the metabolic flux to the phenylpropanoid pathway in tobacco plants. Metab Eng Commun 2021; 13:e00180. [PMID: 34386350 PMCID: PMC8346687 DOI: 10.1016/j.mec.2021.e00180] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 07/16/2021] [Accepted: 07/25/2021] [Indexed: 11/20/2022] Open
Abstract
Raspberry ketone is one of the characteristic flavors of raspberry fruits, and it is an important and expensive ingredient in the flavor and fragrance industries. It is present at low levels in plant tissues, and its occurrence is limited to a few taxa. In this context, the stable production of nature-identical raspberry ketone using heterologous synthesis in plants hosts has recently garnered the attention of plant biochemists. In this study, we demonstrate the rational switching of the metabolic flow from anthocyanin pigments to volatile phenylbutanoid production via the phenylpropanoid pathway. This shift led to the efficient and stable production of raspberry ketone and its glycosides via heterologous expression of the biosynthetic enzymes benzalacetone synthase (BAS) and raspberry ketone/zingerone synthase 1 (RZS1) in the transgenic tobacco (Nicotiana tabacum ‘Petit Havana SR-1’). Additionally, we achieved improved product titers by activating the phenylpropanoid pathway with the transcriptional factor, production of anthocyanin pigment 1 (PAP1), from Arabidopsis thaliana. We further demonstrated another metabolic-flow switching by RNA interference (RNAi)-mediated silencing of chalcone synthase (CHS) to increase pathway-intermediate p-coumaroyl-CoA in transgenic tobacco for raspberry-ketone production. The redirection of metabolic flux resulted in transgenic lines producing 0.45 μg/g of raspberry ketone and 4.5 μg/g, on the fresh weight basis, of its glycosides in the flowers. These results suggest that the intracellular enforcement of endogenous substrate supply is an important factor while engineering the phenylpropanoid pathway. This strategy might be useful for the production of other phenylpropanoids/polyketides that are produced via the pathway-intermediate p-coumaroyl-CoA, in tobacco plants. Overexpression of BAS and RZS1 enabled de novo production of raspberry ketone in transgenic tobacco. Intracellular enforcement of endogenous p-coumaroyl-CoA supply improved raspberry-ketone production. The metabolic flow switching can produce raspberry ketone and its glycosides with a titer of 0.45 and 4.5 μg/gFW, respectively.
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Zhang S, Wang Y, Zhang H, Sun C, Dang S, Liu M. Hydroxyphenyl Butanone Induces Cell Cycle Arrest through Inhibition of GSK3 β in Colorectal Cancer. BIOMED RESEARCH INTERNATIONAL 2021; 2021:9981815. [PMID: 34307685 PMCID: PMC8272657 DOI: 10.1155/2021/9981815] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 04/30/2021] [Accepted: 06/15/2021] [Indexed: 11/17/2022]
Abstract
BACKGROUND Colorectal cancer (CRC) is among the top three gastrointestinal malignancy in morbidity and mortality. The abnormal activation of Wnt/β-catenin pathway is considered to be a key factor in the occurrence and development of CRC. Novel inhibitor discovery against key factor in WNT pathway is important for CRC treatment and prevention. METHODS Cell proliferation was detected after hydroxyphenyl butanone treatment in human colorectal cancer HCT116, LOVO, and normal colonic epithelial NCM460 cells. Colony formation, cell invasion ability, and cell cycle were detected with and without GSK-3β knockdown. RESULTS Hydroxyphenyl butanone induces cycle arresting on G1-S phase of colorectal cancer cell line through GSK3β in Wnt/β-catenin pathway and inhibits malignant biological manifestations of cell proliferation, colony formation, and invasion. The inhibition in the high concentration group is stronger than that in the low concentration group, and the antitumor effect is different for different tumor cells. Under the same concentration of natural hydroxyphenyl butanone, the inhibition on normal colonic epithelial cells is significantly lower than that on tumor cells. The natural hydroxyphenyl butanone with medium and low concentration could promote the proliferation of normal colonic epithelial cells. CONCLUSION This study illustrated natural hydroxyphenyl butanone as new inhibitor of GSK3β and revealed the mechanisms underlying the inhibitory effects in colorectal cancer.
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Affiliation(s)
- Songyan Zhang
- Department of General Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin 150086, China
| | - Yunfeng Wang
- Department of General Surgery, The Fourth Affiliated Hospital of Harbin Medical University, Harbin 150001, China
| | - Haopeng Zhang
- Department of General Surgery, The Fourth Affiliated Hospital of Harbin Medical University, Harbin 150001, China
| | - Chengming Sun
- Department of General Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin 150086, China
| | - Shuwei Dang
- Department of General Surgery, The Fourth Affiliated Hospital of Harbin Medical University, Harbin 150001, China
| | - Ming Liu
- Department of General Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin 150086, China
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Pharmacological Exploration of Phenolic Compound: Raspberry Ketone-Update 2020. PLANTS (BASEL, SWITZERLAND) 2021; 10:plants10071323. [PMID: 34209554 PMCID: PMC8309185 DOI: 10.3390/plants10071323] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 06/17/2021] [Accepted: 06/25/2021] [Indexed: 02/06/2023]
Abstract
Raspberry ketone (RK) is an aromatic phenolic compound naturally occurring in red raspberries, kiwifruit, peaches, and apples and reported for its potential therapeutic and nutraceutical properties. Studies in cells and rodents have suggested an important role for RK in hepatic/cardio/gastric protection and as an anti-hyperlipidemic, anti-obesity, depigmentation, and sexual maturation agent. Raspberry ketone-mediated activation of peroxisome proliferator-activated receptor-α (PPAR-α) stands out as one of its main modes of action. Although rodent studies have demonstrated the efficacious effects of RK, its mechanism remains largely unknown. In spite of a lack of reliable human research, RK is marketed as a health supplement, at very high doses. In this review, we provide a compilation of scientific research that has been conducted so far, assessing the therapeutic properties of RK in several disease conditions as well as inspiring future research before RK can be considered safe and efficacious with limited side effects as an alternative to modern medicines in the treatment of major lifestyle-based diseases.
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Carey AN, Pintea GI, Van Leuven S, Gildawie KR, Squiccimara L, Fine E, Rovnak A, Harrington M. Red raspberry ( Rubus ideaus) supplementation mitigates the effects of a high-fat diet on brain and behavior in mice. Nutr Neurosci 2021; 24:406-416. [PMID: 31328696 DOI: 10.1080/1028415x.2019.1641284] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
OBJECTIVES Research has shown that berries may have the ability to reverse, reduce, or slow the progression of behavioral dysfunction associated with aging and neurodegenerative disease. In contrast, high-energy and high-fat diets (HFD) may result in behavioral deficits like those seen in aging animals. This research examined whether red raspberry (Rubus ideaus) mitigates the effects of HFD on mouse brain and behavior. METHODS Eight-week-old mice consumed a HFD (60% calories from fat) or a control diet (CD) with and without 4% freeze-dried red raspberry (RB). Behavioral tests and biochemical assays of brain tissue and serum were conducted. RESULTS After 12 weeks on the diets, mice fed CD and HFD had impaired novel object recognition, but mice on the RB-supplemented diets did not. After approximately 20 weeks on the diets, mice fed HFD + RB had shorter latencies to find the escape hole in the Barnes maze than the HFD-fed mice. Interleukin (IL)-6 was significantly elevated in the cortex of mice fed HFD; while mice fed the CD, CD + RB, and HFD + RB did not show a similar elevation. There was also evidence of increased brain-derived neurotrophic factor (BDNF) in the brains of mice fed RB diets. This reduction in IL-6 and increase in BDNF may contribute to the preservation of learning and memory in HFD + RB mice. CONCLUSION This study demonstrates that RB may protect against the effects HFD has on brain and behavior; however, further research with human subjects is needed to confirm these benefits.
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Affiliation(s)
- Amanda N Carey
- Department of Psychology, College of Natural, Behavioral and Health Sciences, Simmons University (formerly Simmons College), Boston, MA, USA
| | - Giulia I Pintea
- Department of Psychology, College of Natural, Behavioral and Health Sciences, Simmons University (formerly Simmons College), Boston, MA, USA
| | - Shelby Van Leuven
- Department of Psychology, College of Natural, Behavioral and Health Sciences, Simmons University (formerly Simmons College), Boston, MA, USA
| | - Kelsea R Gildawie
- Department of Psychology, College of Natural, Behavioral and Health Sciences, Simmons University (formerly Simmons College), Boston, MA, USA
| | - Laura Squiccimara
- Department of Psychology, College of Natural, Behavioral and Health Sciences, Simmons University (formerly Simmons College), Boston, MA, USA
| | - Elizabeth Fine
- Department of Psychology, College of Natural, Behavioral and Health Sciences, Simmons University (formerly Simmons College), Boston, MA, USA
| | - Abigail Rovnak
- Department of Psychology, College of Natural, Behavioral and Health Sciences, Simmons University (formerly Simmons College), Boston, MA, USA
| | - Mark Harrington
- Department of Psychology, College of Natural, Behavioral and Health Sciences, Simmons University (formerly Simmons College), Boston, MA, USA
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Becker A, Böttcher D, Katzer W, Siems K, Müller-Kuhrt L, Bornscheuer UT. An ADH toolbox for raspberry ketone production from natural resources via a biocatalytic cascade. Appl Microbiol Biotechnol 2021; 105:4189-4197. [PMID: 33988735 PMCID: PMC8140976 DOI: 10.1007/s00253-021-11332-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 04/27/2021] [Accepted: 05/03/2021] [Indexed: 11/29/2022]
Abstract
Abstract Raspberry ketone is a widely used flavor compound in food and cosmetic industry. Several processes for its biocatalytic production have already been described, but either with the use of genetically modified organisms (GMOs) or incomplete conversion of the variety of precursors that are available in nature. Such natural precursors are rhododendrol glycosides with different proportions of (R)- and (S)-rhododendrol depending on the origin. After hydrolysis of these rhododendrol glycosides, the formed rhododendrol enantiomers have to be oxidized to obtain the final product raspberry ketone. To be able to achieve a high conversion with different starting material, we assembled an alcohol dehydrogenase toolbox that can be accessed depending on the optical purity of the intermediate rhododendrol. This is demonstrated by converting racemic rhododendrol using a combination of (R)- and (S)-selective alcohol dehydrogenases together with a universal cofactor recycling system. Furthermore, we conducted a biocatalytic cascade reaction starting from naturally derived rhododendrol glycosides by the use of a glucosidase and an alcohol dehydrogenase to produce raspberry ketone in high yield. Key points • LB-ADH, LK-ADH and LS-ADH oxidize (R)-rhododendrol • RR-ADH and ADH1E oxidize (S)-rhododendrol • Raspberry ketone production via glucosidase and alcohol dehydrogenases from a toolbox Graphical abstract ![]()
Supplementary Information The online version contains supplementary material available at 10.1007/s00253-021-11332-9.
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Affiliation(s)
- Aileen Becker
- Department of Biotechnology and Enzyme Catalysis, Institute of Biochemistry, University of Greifswald, Greifswald, Germany
| | - Dominique Böttcher
- Department of Biotechnology and Enzyme Catalysis, Institute of Biochemistry, University of Greifswald, Greifswald, Germany
| | | | | | | | - Uwe T Bornscheuer
- Department of Biotechnology and Enzyme Catalysis, Institute of Biochemistry, University of Greifswald, Greifswald, Germany.
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Lim SH, Choi CI. Potentials of Raspberry Ketone as a Natural Antioxidant. Antioxidants (Basel) 2021; 10:antiox10030482. [PMID: 33803859 PMCID: PMC8003299 DOI: 10.3390/antiox10030482] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 03/03/2021] [Accepted: 03/15/2021] [Indexed: 12/15/2022] Open
Abstract
Oxidative stress is closely linked to various diseases, and many studies have been conducted to determine how to reduce this stress. In particular, efforts are being made to find potential antioxidants from natural products. Studies have shown that raspberry ketone (RK; 4-(4-hydroxyphenyl)-2-butanone) has various pharmacological activities. This review summarizes the antioxidant activities of RK and their underlying mechanisms. In several experimental models, it was proven that RK exhibits antioxidant properties through increasing total antioxidant capacity (TAC); upregulating antioxidant enzymes, such as superoxide dismutase (SOD) and catalase (CAT); and improving lipid peroxidation. In conclusion, research about RK’s antioxidant activities is directly or indirectly related to its other various physiological activities. Further studies at the clinical level will be able to verify the value of RK as an effective antioxidant, functional health food, and therapeutic agent.
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Affiliation(s)
- Sung Ho Lim
- BK21 FOUR Team and Integrated Research Institute for Drug Development, College of Pharmacy, Dongguk University-Seoul, Goyang 10326, Korea;
| | - Chang-Ik Choi
- Integrated Research Institute for Drug Development, College of Pharmacy, Dongguk University-Seoul, Goyang 10326, Korea
- Correspondence: ; Tel.: +82-31-961-5230
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VandenAkker NE, Vendrame S, Tsakiroglou P, McGilvrey M, Klimis-Zacas D. Whole Red Raspberry ( Rubus idaeus)-Enriched Diet Is Hepatoprotective in the Obese Zucker Rat, a Model of the Metabolic Syndrome. J Med Food 2020; 24:817-824. [PMID: 33227217 DOI: 10.1089/jmf.2020.0130] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Non-alcoholic fatty liver disease is a major risk factor of the metabolic syndrome (MetS). The effect of whole red raspberry (WRR) consumption on lipid metabolism was investigated in the obese Zucker rat (OZR), a model for the MetS. Male OZRs (n = 16) and their lean littermates (lean Zucker rat) (n = 16) at 8 weeks of age were placed on a control or an 8% WRR-enriched diet for 8 weeks. Plasma triglycerides (TGs), total cholesterol, high-density lipoprotein cholesterol (HDL-C), and non-HDL-C levels, and hepatic concentration of TG were measured. The expression of nine genes related to lipid metabolism was evaluated, both in liver and adipose tissue. A WRR-enriched diet reduced plasma cholesterol and HDL-C and increased plasma TG, while it decreased hepatic TG accumulation in the OZR. The OZR assigned to a WRR exhibited upregulation of microsomal triglyceride transfer protein (Mttp) and downregulation of fatty acid synthase (Fas) expression in the liver. Results showed a decrease in accumulation of liver TG and gene expression modulation of enzymes and transcription factors associated with lipid metabolism, suggesting a possible hepatoprotective role of a WRR-enriched diet.
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Affiliation(s)
| | - Stefano Vendrame
- School of Food and Agriculture, University of Maine, Orono, Maine, USA
| | | | - Marissa McGilvrey
- School of Food and Agriculture, University of Maine, Orono, Maine, USA
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Design, synthesis, and structure of alkyl 1H-pyrazolecarboxylates from a raspberry ketone methyl ether. Chem Heterocycl Compd (N Y) 2020. [DOI: 10.1007/s10593-020-02816-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Hao L, Kshatriya D, Li X, Badrinath A, Szmacinski Z, Goedken MJ, Polunas M, Bello NT. Acute feeding suppression and toxicity of raspberry ketone [4-(4-hydroxyphenyl)-2-butanone] in mice. Food Chem Toxicol 2020; 143:111512. [PMID: 32565406 PMCID: PMC7483346 DOI: 10.1016/j.fct.2020.111512] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Revised: 05/09/2020] [Accepted: 06/05/2020] [Indexed: 02/06/2023]
Abstract
Raspberry ketone (RK; [4-(4-hydroxyphenyl)-2-butanone]) is used by the food and cosmetic industry as a flavoring agent. RK is also marketed as a dietary supplement for weight maintenance and appetite control. The purpose of the study was to characterize the acute feeding suppression with RK (64-640 mg/kg) by oral gavage in male and female C57BL/6J mice. Cumulative 24 h food intake was reduced at 200 mg/kg (24% feeding suppression) in males and reliably reduced at 640 mg/kg (49-77% feeding suppression). Feeding suppression was not associated with pica behavior over the range of doses or conditioned taste aversion. In a separate experiment, a single oral gavage of RK (640 mg/kg) resulted in approximate 43% mortality rate (6 out 14 male mice) within 2 days. Atrophy of white adipose tissue, splenic abnormalities, and thymus involution were noted after 2-4 days after oral gavage RK. Total white blood cell count, lymphocytes, monocytes, eosinophils were significantly lower, while mean red blood cells, hemoglobin, and hematocrit were significantly higher with RK treatment. Our findings indicated a dose-dependent feeding suppression with acute RK, but doses that reliable suppress food intake are associated with pathological changes.
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Affiliation(s)
- Lihong Hao
- Department of Animal Sciences, School of Environmental and Biological Sciences, Rutgers, The State University of New Jersey, New Brunswick, NJ, 08901, USA
| | - Dushyant Kshatriya
- Department of Animal Sciences, School of Environmental and Biological Sciences, Rutgers, The State University of New Jersey, New Brunswick, NJ, 08901, USA; Nutritional Sciences Graduate Program, School of Environmental and Biological Sciences, Rutgers, The State University of New Jersey New Brunswick, NJ, 08901, USA
| | - Xinyi Li
- Department of Animal Sciences, School of Environmental and Biological Sciences, Rutgers, The State University of New Jersey, New Brunswick, NJ, 08901, USA; Nutritional Sciences Graduate Program, School of Environmental and Biological Sciences, Rutgers, The State University of New Jersey New Brunswick, NJ, 08901, USA
| | - Aditi Badrinath
- Department of Animal Sciences, School of Environmental and Biological Sciences, Rutgers, The State University of New Jersey, New Brunswick, NJ, 08901, USA; Endocrinology and Animal Biosciences Graduate Program, School of Environmental and Biological Sciences, Rutgers, The State University of New Jersey New Brunswick, NJ, 08901, USA
| | - Zuzanna Szmacinski
- Department of Animal Sciences, School of Environmental and Biological Sciences, Rutgers, The State University of New Jersey, New Brunswick, NJ, 08901, USA
| | - Michael J Goedken
- Research Pathology Services, Rutgers, The State University of New Jersey, Piscataway, NJ, 08854, USA
| | - Marianne Polunas
- Research Pathology Services, Rutgers, The State University of New Jersey, Piscataway, NJ, 08854, USA
| | - Nicholas T Bello
- Department of Animal Sciences, School of Environmental and Biological Sciences, Rutgers, The State University of New Jersey, New Brunswick, NJ, 08901, USA; Nutritional Sciences Graduate Program, School of Environmental and Biological Sciences, Rutgers, The State University of New Jersey New Brunswick, NJ, 08901, USA; Endocrinology and Animal Biosciences Graduate Program, School of Environmental and Biological Sciences, Rutgers, The State University of New Jersey New Brunswick, NJ, 08901, USA.
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Li S, Laishram RD, Shen G, Zhang X, Yang Y, Ni J, Zhan Y, Zhou Y, Fan B. Synthesis of 1,3-diaryl butanones from acetophenones via a tandem reaction. SYNTHETIC COMMUN 2020. [DOI: 10.1080/00397911.2020.1755871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Sida Li
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission and Ministry of Education, Yunnan Minzu University, Kunming, China
| | - Ronibala Devi Laishram
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission and Ministry of Education, Yunnan Minzu University, Kunming, China
| | - Guoli Shen
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission and Ministry of Education, Yunnan Minzu University, Kunming, China
| | - Xuexin Zhang
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission and Ministry of Education, Yunnan Minzu University, Kunming, China
| | - Yong Yang
- Chongqing Academy of Chinese Materia Medica, Chongqing, China
| | - Jianxiao Ni
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission and Ministry of Education, Yunnan Minzu University, Kunming, China
| | - Yong Zhan
- Chongqing Academy of Chinese Materia Medica, Chongqing, China
| | - Yongyun Zhou
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission and Ministry of Education, Yunnan Minzu University, Kunming, China
- School of Chemistry and Environment, Yunnan Minzu University, Kunming, China
| | - Baomin Fan
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, State Ethnic Affairs Commission and Ministry of Education, Yunnan Minzu University, Kunming, China
- School of Chemistry and Environment, Yunnan Minzu University, Kunming, China
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Kshatriya D, Hao L, Li X, Bello NT. Raspberry Ketone [4-(4-Hydroxyphenyl)-2-Butanone] Differentially Effects Meal Patterns and Cardiovascular Parameters in Mice. Nutrients 2020; 12:nu12061754. [PMID: 32545402 PMCID: PMC7353175 DOI: 10.3390/nu12061754] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 06/04/2020] [Accepted: 06/09/2020] [Indexed: 01/06/2023] Open
Abstract
Raspberry ketone (RK; [4-(4-hydroxyphenyl)-2-butanone]) is a popular nutraceutical used for weight management and appetite control. We sought to determine the physiological benefits of RK on the meal patterns and cardiovascular changes associated with an obesogenic diet. In addition, we explored whether the physiological benefits of RK promoted anxiety-related behaviors. Male and female C57BL/6J mice were administered a daily oral gavage of RK 200 mg/kg, RK 400 mg/kg, or vehicle for 14 days. Commencing with dosing, mice were placed on a high-fat diet (45% fat) or low-fat diet (10% fat). Our results indicated that RK 200 mg/kg had a differential influence on meal patterns in males and females. In contrast, RK 400 mg/kg reduced body weight gain, open-field total distance travelled, hemodynamic measures (i.e., reduced systolic blood pressure (BP), diastolic BP and mean BP), and increased nocturnal satiety ratios in males and females. In addition, RK 400 mg/kg increased neural activation in the nucleus of the solitary tract, compared with vehicle. RK actions were not influenced by diet, nor resulted in an anxiety-like phenotype. Our findings suggest that RK has dose-differential feeding and cardiovascular actions, which needs consideration as it is used as a nutraceutical for weight control for obesity.
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Affiliation(s)
- Dushyant Kshatriya
- Nutritional Sciences Graduate Program, School of Environmental and Biological Sciences, Rutgers, The State University of New Jersey, New Brunswick, NJ 08901, USA; (D.K.); (X.L.)
- Department of Animal Sciences, School of Environmental and Biological Sciences, Rutgers, The State University of New Jersey, New Brunswick, NJ 08901, USA;
| | - Lihong Hao
- Department of Animal Sciences, School of Environmental and Biological Sciences, Rutgers, The State University of New Jersey, New Brunswick, NJ 08901, USA;
| | - Xinyi Li
- Nutritional Sciences Graduate Program, School of Environmental and Biological Sciences, Rutgers, The State University of New Jersey, New Brunswick, NJ 08901, USA; (D.K.); (X.L.)
- Department of Animal Sciences, School of Environmental and Biological Sciences, Rutgers, The State University of New Jersey, New Brunswick, NJ 08901, USA;
| | - Nicholas T. Bello
- Nutritional Sciences Graduate Program, School of Environmental and Biological Sciences, Rutgers, The State University of New Jersey, New Brunswick, NJ 08901, USA; (D.K.); (X.L.)
- Department of Animal Sciences, School of Environmental and Biological Sciences, Rutgers, The State University of New Jersey, New Brunswick, NJ 08901, USA;
- Correspondence: ; Tel.: +1-848-932-2966
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UHPLC-QqQ-MS/MS method development and validation with statistical analysis: Determination of raspberry ketone metabolites in mice plasma and brain. J Chromatogr B Analyt Technol Biomed Life Sci 2020; 1149:122146. [PMID: 32474352 DOI: 10.1016/j.jchromb.2020.122146] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 04/13/2020] [Accepted: 05/02/2020] [Indexed: 12/16/2022]
Abstract
Raspberry ketone (RK) (4-(4-hydroxyphenyl)-2-butanone) is the major compound responsible for the characteristic aroma of red raspberries, and has long been used commercially as a flavoring agent and recently as a weight loss supplement. A targeted UHPLC-QqQ-MS/MS method was developed and validated for analysis of RK and 25 associated metabolites in mouse plasma and brain. Dispersion and projection analysis and central composite design were used for method optimization. Random effect analysis of variance was applied for validation inference and variation partition. Within this framework, repeatability, a broader sense of precision, was calculated as fraction of accuracy variance, reflecting instrumental imprecision, compound degradation and carry-over effects. Multivariate correlation analysis and principle component analysis were conducted, revealing underlying association among the manifold of method traits. R programming was engaged in streamlined statistical analysis and data visualization. Two particular phenomena, the analytes' background existence in the enzyme solution used for phase II metabolites deconjugation, and the noted lability of analytes in pure solvent at 4 ℃ vs. elevated stability in biomatrices, were found critical to method development and validation. The approach for the method development and validation provided a foundation for experiments that examine RK metabolism and bioavailability.
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Milke L, Mutz M, Marienhagen J. Synthesis of the character impact compound raspberry ketone and additional flavoring phenylbutanoids of biotechnological interest with Corynebacterium glutamicum. Microb Cell Fact 2020; 19:92. [PMID: 32316987 PMCID: PMC7175512 DOI: 10.1186/s12934-020-01351-y] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Accepted: 04/13/2020] [Indexed: 12/15/2022] Open
Abstract
Background The phenylbutanoid 4-(4-hydroxyphenyl)butan-2-one, commonly known as raspberry ketone, is responsible for the typical scent and flavor of ripe raspberries. Chemical production of nature-identical raspberry ketone is well established as this compound is frequently used to flavor food, beverages and perfumes. However, high demand for natural raspberry ketone, but low natural abundance in raspberries, render raspberry ketone one of the most expensive natural flavoring components. Results In this study, Corynebacterium glutamicum was engineered for the microbial synthesis of the character impact compound raspberry ketone from supplemented p-coumaric acid. In this context, the NADPH-dependent curcumin/dihydrocurcumin reductase CurA from Escherichia coli was employed to catalyze the final step of raspberry ketone synthesis as it provides a hitherto unknown benzalacetone reductase activity. In combination with a 4-coumarate: CoA ligase from parsley (Petroselinum crispum) and a monofunctional benzalacetone synthase from Chinese rhubarb (Rheum palmatum), CurA constitutes the synthetic pathway for raspberry ketone synthesis in C. glutamicum. The resulting strain accumulated up to 99.8 mg/L (0.61 mM) raspberry ketone. In addition, supplementation of other phenylpropanoids allowed for the synthesis of two other naturally-occurring and flavoring phenylbutanoids, zingerone (70 mg/L, 0.36 mM) and benzylacetone (10.5 mg/L, 0.07 mM). Conclusion The aromatic product portfolio of C. glutamicum was extended towards the synthesis of the flavoring phenylbutanoids raspberry ketone, zingerone and benzylacetone. Key to success was the identification of CurA from E. coli having a benzalacetone reductase activity. We believe, that the constructed C. glutamicum strain represents a versatile platform for the production of natural flavoring phenylbutanoids at larger scale.
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Affiliation(s)
- Lars Milke
- Institute of Bio- and Geosciences, IBG-1: Biotechnology, Forschungszentrum Jülich GmbH, 52425, Jülich, Germany
| | - Mario Mutz
- Institute of Bio- and Geosciences, IBG-1: Biotechnology, Forschungszentrum Jülich GmbH, 52425, Jülich, Germany
| | - Jan Marienhagen
- Institute of Bio- and Geosciences, IBG-1: Biotechnology, Forschungszentrum Jülich GmbH, 52425, Jülich, Germany. .,Bioeconomy Science Center (BioSC), Forschungszentrum Jülich GmbH, 52425, Jülich, Germany. .,Institute of Biotechnology, RWTH Aachen University, Worringer Weg 3, 52074, Aachen, Germany.
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Raspberry (Rubus idaeus L.) fruit extract decreases oxidation markers, improves lipid metabolism and reduces adipose tissue inflammation in hypertrophied 3T3-L1 adipocytes. J Funct Foods 2019. [DOI: 10.1016/j.jff.2019.103568] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
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Mir TM, Ma G, Ali Z, Khan IA, Ashfaq MK. Effect of Raspberry Ketone on Normal, Obese and Health-Compromised Obese Mice: A Preliminary Study. J Diet Suppl 2019; 18:1-16. [PMID: 31603036 DOI: 10.1080/19390211.2019.1674996] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Raspberry ketone (RK)-an aromatic compound found mostly in red raspberries (Rubus idaeus) is widely used as an over the counter product for weight loss. The present study was conducted to determine adverse effects associated with RK in obese and health-compromised obese mice. Two sets of experiments were conducted on normal obese and health-compromised obese mice treated with RK for a duration of 10 days. Obese conditions were induced by feeding mice a high fat diet for 10 weeks, while the health compromised obese mouse model was developed by a single intraperitoneal injection of a nontoxic dose of lipopolysaccharide (LPS) (6 mg/kg) to obese mice. Results showed that RK (165, 330, and 500 mg/kg) under obese as well as health-compromised condition retarded the gain in body weights as compared to the control groups. RK at doses 330 and 500 mg/kg resulted in 67.6 and 50% mortality, respectively in normal obese mice and 70% mortality was observed in health-compromised obese mice treated with RK at 500 mg/kg. At higher doses deaths were observed earlier than those given lower doses of RK. Significant elevations in blood alanine transaminase (ALT) were also observed with RK treatment in obese mice. Blood glucose levels were significantly elevated in all groups of mice treated with RK. This study suggests that higher doses of RK may cause adverse effects in health compromised conditions. Under these conditions, prolonged use of RK, especially in high doses, may pose a health hazard.
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Affiliation(s)
- Tahir Maqbool Mir
- National Center for Natural Product Research, School of Pharmacy, University of Mississippi, University, MS, USA
| | - Guoyi Ma
- Drug Discovery Division, Southern Research, Birmingham, AL, UK
| | - Zulfiqar Ali
- National Center for Natural Product Research, School of Pharmacy, University of Mississippi, University, MS, USA
| | - Ikhlas A Khan
- National Center for Natural Product Research, School of Pharmacy, University of Mississippi, University, MS, USA
| | - Mohammad K Ashfaq
- National Center for Natural Product Research, School of Pharmacy, University of Mississippi, University, MS, USA
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Kshatriya D, Li X, Giunta GM, Yuan B, Zhao D, Simon JE, Wu Q, Bello NT. Phenolic-enriched raspberry fruit extract (Rubus idaeus) resulted in lower weight gain, increased ambulatory activity, and elevated hepatic lipoprotein lipase and heme oxygenase-1 expression in male mice fed a high-fat diet. Nutr Res 2019; 68:19-33. [PMID: 31252376 DOI: 10.1016/j.nutres.2019.05.005] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Revised: 05/06/2019] [Accepted: 05/17/2019] [Indexed: 12/15/2022]
Abstract
Red raspberries (Rubus idaeus) contain numerous phenolic compounds with purported health benefits. Raspberry ketone (4-(4-hydroxyphenyl)-2-butanone) is a primary raspberry flavor phenolic found in raspberries and is designated as a synthetic flavoring agent by the Food and Drug Administration. Synthetic raspberry ketone has been demonstrated to result in weight loss in rodents. We tested whether phenolic-enriched raspberry extracts, compared with raspberry ketone, would be more resilient to the metabolic alterations caused by an obesogenic diet. Male C57BL/6J mice (8 weeks old) received a daily oral dose of vehicle (VEH; 50% propylene glycol, 40% water, and 10% dimethyl sulfoxide), raspberry extract low (REL; 0.2 g/kg), raspberry extract high (REH; 2 g/kg), or raspberry ketone (RK; 0.2 g/kg). Coincident with daily dosing, mice were placed on a high-fat diet (45% fat). After 4 weeks, REH and RK reduced body weight gain (approximately 5%-9%) and white adipose mass (approximately 20%) compared with VEH. Hepatic gene expression of heme oxygenase-1 and lipoprotein lipase was upregulated in REH compared with VEH. Indirect calorimetry indicated that respiratory exchange ratio (CO2 production to O2 consumption) was lower, suggesting increased fat oxidation with all treatments. REH treatment increased total ambulatory behavior. Energy expenditure/lean mass was higher in REH compared with REL treatment. There were no treatment differences in cumulative intake, meal patterns, or hypothalamic feed-related gene expression. Our results suggest that raspberry ketone and a phenolic-enriched raspberry extract both have the capacity to prevent weight gain but differ in the preventative mechanisms for excess fat accumulation following high-fat diet exposure.
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Affiliation(s)
- Dushyant Kshatriya
- Department of Animal Sciences, School of Environmental and Biological Sciences, Rutgers, The State University of New Jersey, New Brunswick, NJ, 08901, USA; Nutritional Sciences Graduate Program, School of Environmental and Biological Sciences, Rutgers, The State University of New Jersey New Brunswick, NJ, 08901, USA
| | - Xinyi Li
- Department of Animal Sciences, School of Environmental and Biological Sciences, Rutgers, The State University of New Jersey, New Brunswick, NJ, 08901, USA; Nutritional Sciences Graduate Program, School of Environmental and Biological Sciences, Rutgers, The State University of New Jersey New Brunswick, NJ, 08901, USA
| | - Gina M Giunta
- Department of Animal Sciences, School of Environmental and Biological Sciences, Rutgers, The State University of New Jersey, New Brunswick, NJ, 08901, USA
| | - Bo Yuan
- New Use Agriculture and Natural Plant Products Program, Department of Plant Biology, School of Environmental and Biological Sciences, Rutgers, The State University of New Jersey, New Brunswick, NJ, 08901, USA
| | - Danyue Zhao
- New Use Agriculture and Natural Plant Products Program, Department of Plant Biology, School of Environmental and Biological Sciences, Rutgers, The State University of New Jersey, New Brunswick, NJ, 08901, USA
| | - James E Simon
- New Use Agriculture and Natural Plant Products Program, Department of Plant Biology, School of Environmental and Biological Sciences, Rutgers, The State University of New Jersey, New Brunswick, NJ, 08901, USA
| | - Qingli Wu
- New Use Agriculture and Natural Plant Products Program, Department of Plant Biology, School of Environmental and Biological Sciences, Rutgers, The State University of New Jersey, New Brunswick, NJ, 08901, USA
| | - Nicholas T Bello
- Department of Animal Sciences, School of Environmental and Biological Sciences, Rutgers, The State University of New Jersey, New Brunswick, NJ, 08901, USA; Nutritional Sciences Graduate Program, School of Environmental and Biological Sciences, Rutgers, The State University of New Jersey New Brunswick, NJ, 08901, USA.
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Construction of synthetic pathways for raspberry ketone production in engineered Escherichia coli. Appl Microbiol Biotechnol 2019; 103:3715-3725. [PMID: 30915501 DOI: 10.1007/s00253-019-09748-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Revised: 10/11/2018] [Accepted: 03/06/2019] [Indexed: 01/31/2023]
Abstract
Raspberry ketone is an important ingredient in the flavor and fragrance industries. Due to its low content in fruits and vegetables, the production of natural raspberry ketone using heterologous synthesis in microbial strains is recently attracting increased attention. In this work, a heterologous pathway to produce raspberry ketone from p-coumaric acid, including 4-coumarate: CoA ligase (4CL), benzalacetone synthase (BAS), and raspberry ketone/zingerone synthase (RZS1) from plants, was successfully assembled in Escherichia coli. When the RZS1 gene was introduced into E. coli and co-expressed with two other genes, the intermediate 4-hydroxybenzylidene acetone in the pathway was almost completely transformed into a raspberry ketone. Substituting TB medium for M9 medium increased raspberry ketone titers by 3-4 times. Furthermore, the heterologous pathway was partitioned into two modules; module one produced p-coumaroyl-CoA from p-coumaric acid by 4CL, and module two produced raspberry ketone from coumaroyl-CoA by the action of BAS and RZS1. Optimizing the balanced expression of the two modules, it was shown that moderate expression of module one and high expression of module two was the best combination to enhance raspberry ketone production. The engineered strain CZ-8 reached 90.97 mg/l of raspberry ketone, which was 12 times higher than previously reported. In addition, the preferred approach of the heterologous pathway was related to the heterologous genes from different sources; for example, 4CL from Arabidopsis thaliana seemed to be more suitable for raspberry ketone production than that from Petroselinum crispum. This work paves an alternative way for future economic production of natural raspberry ketone.
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Bhutani KK, Birari R, Kapat K. Potential Anti-obesity and Lipid Lowering Natural Products: A Review. Nat Prod Commun 2019. [DOI: 10.1177/1934578x0700200316] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Obesity has reached epidemic proportions globally, with more than 1 billion adults overweight - at least 300 million of them clinically obese. In Ayurveda, obesity is called ‘medoroga’. The detailed features and treatments of the disease have been described in an old Ayurvedic text, Charak and Sushrut Samhita. There are some native plants that are commonly used for the treatment of obesity in Ayurveda. Unfortunately, only few medications are available in the market, with side effects and unacceptable efficacy. With the current view that botanical drugs can be developed faster and more cheaply than conventional single entity pharmaceuticals, the review mainly focuses on the rationality of their use with appropriate literature data support.
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Affiliation(s)
- Kamlesh Kumar Bhutani
- Department of Natural Products, National Institute of Pharmaceutical Education and Research, S.A.S. Nagar, Punjab - 160 062, India
| | - Rahul Birari
- Department of Natural Products, National Institute of Pharmaceutical Education and Research, S.A.S. Nagar, Punjab - 160 062, India
| | - Kausik Kapat
- Department of Natural Products, National Institute of Pharmaceutical Education and Research, S.A.S. Nagar, Punjab - 160 062, India
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Lim LT, Mendes AC, Chronakis IS. Electrospinning and electrospraying technologies for food applications. ADVANCES IN FOOD AND NUTRITION RESEARCH 2019; 88:167-234. [PMID: 31151724 DOI: 10.1016/bs.afnr.2019.02.005] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Electrospinning and electrospraying are versatile techniques for the production of nano- to micro-scale fibers and particles. Over the past 2 decades, significant progresses have been made to advance the fundamental understandings of these electrohydrodynamic processes. Researchers have investigated different polymeric and non-polymeric substrates for producing submicron electrospun/electrosprayed materials of unique morphologies and physicochemical properties. This chapter provides an overview on the basic principles of electrospinning and electrospraying, highlighting the effects of key processing and solution parameters. Electrohydrodynamic phenomena of edible substrates, including polysaccharides (xanthan, alginate, starch, cyclodextrin, pullulan, dextran, modified celluloses, and chitosan), proteins (zein, what gluten, whey protein, soy protein, gelatin, etc.), and phospholipids are reviewed. Selected examples are presented on how ultrafine fibers and particles derived from these substrates are being exploited for food and nutraceutical applications. Finally, the challenges and opportunities of the electrostatic methods are discussed.
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Affiliation(s)
- Loong-Tak Lim
- Department of Food Science, University of Guelph, Guelph, ON, Canada.
| | - Ana C Mendes
- Nano-BioScience Research Group, DTU-Food, Technical University of Denmark, Lyngby, Denmark
| | - Ioannis S Chronakis
- Nano-BioScience Research Group, DTU-Food, Technical University of Denmark, Lyngby, Denmark
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Raspberry ketone and Garcinia Cambogia rebalanced disrupted insulin resistance and leptin signaling in rats fed high fat fructose diet. Biomed Pharmacother 2019; 110:500-509. [DOI: 10.1016/j.biopha.2018.11.079] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Revised: 11/15/2018] [Accepted: 11/19/2018] [Indexed: 01/07/2023] Open
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Risks associated with fat burners: A toxicological perspective. Food Chem Toxicol 2019; 123:205-224. [DOI: 10.1016/j.fct.2018.10.051] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Revised: 10/16/2018] [Accepted: 10/22/2018] [Indexed: 12/18/2022]
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Khan V, Sharma S, Bhandari U, Sharma N, Rishi V, Haque SE. Suppression of isoproterenol-induced cardiotoxicity in rats by raspberry ketone via activation of peroxisome proliferator activated receptor-α. Eur J Pharmacol 2018; 842:157-166. [PMID: 30431010 DOI: 10.1016/j.ejphar.2018.10.034] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Revised: 10/17/2018] [Accepted: 10/24/2018] [Indexed: 12/13/2022]
Abstract
The peroxisome proliferator-activated receptor-α (PPAR-α) controls the lipid and glucose metabolism and also affects inflammation, cell proliferation and apoptosis during cardiovascular disease. Raspberry ketone (RK) is a red raspberry (Rubusidaeus, Family-Rosaceae) plant constituent, which activates PPAR-α. This study was conducted to assess the cardioprotective action of RK against isoproterenol (ISO)-induced cardiotoxicity. Wistar rats were randomly divided into six groups (six rats/group). Rats were orally administered with RK (50, 100 and 200 mg/kg, respectively) and fenofibrate (standard, 80 mg/kg) for 28 days and ISO was administered (85 mg/kg, subcutaneously) on 27th and 28th day. Administration of ISO in rats significantly altered hemodynamic and electrocardiogram patterns, total antioxidant capacity, PPAR-α, and apolipoprotein C-III levels. These myocardial aberrations were further confirmed during infarct size, heart weight to body weight ratio and immunohistochemical assessments (caspase-3 and nuclear factor-κB). RK pretreatment (100 and 200 mg/kg) significantly protected rats against oxidative stress, inflammation, and dyslipidemia caused by ISO as demonstrated by change in hemodynamic, biochemical and histological parameters. The results so obtained were quite comparable with fenofibrate. Moreover, RK was found to have binding affinity with PPAR-α, as confirmed by docking analysis. PPAR-α expression and concentration was also found increased in presence of RK which gave impression that RK probably showed cardioprotection via PPAR-α activation, however direct binding study of RK with PPAR-α is needed to confirm this assumption.
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Affiliation(s)
- Vasim Khan
- Department of Pharmacology, School of Pharmaceutical Education & Research (SPER), Jamia Hamdard, New Delhi 110062, India
| | - Sumit Sharma
- Department of Pharmacology, School of Pharmaceutical Education & Research (SPER), Jamia Hamdard, New Delhi 110062, India
| | - Uma Bhandari
- Department of Pharmacology, School of Pharmaceutical Education & Research (SPER), Jamia Hamdard, New Delhi 110062, India
| | - Nishtha Sharma
- National Agri-Food Biotechnology Institute, SAS Nagar, Punjab 140306, India
| | - Vikas Rishi
- National Agri-Food Biotechnology Institute, SAS Nagar, Punjab 140306, India
| | - Syed Ehtaishamul Haque
- Department of Pharmacology, School of Pharmaceutical Education & Research (SPER), Jamia Hamdard, New Delhi 110062, India.
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Wu T, Yang L, Guo X, Zhang M, Liu R, Sui W. Raspberry anthocyanin consumption prevents diet-induced obesity by alleviating oxidative stress and modulating hepatic lipid metabolism. Food Funct 2018; 9:2112-2120. [PMID: 29632909 DOI: 10.1039/c7fo02061a] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Evidence indicates that raspberries have beneficial effects on chronic diseases. The objective of this study was to examine the beneficial effects of raspberry anthocyanin (RA) on high fat diet-induced obesity and investigate the underlying molecular mechanism. C57BL/6 mice were administered a low-fat diet, high-fat diet, and high-fat diet supplemented with RA at a dose of 200 mg kg-1 of food for 12 weeks. It was found that RA reduced the body weight gain by 63.7%. Furthermore, RA significantly elevated serum superoxide dismutase (SOD) and glutathione peroxidase (GSH-PX) activities and fecal butyric acid level, remarkably reduced the serum and hepatic lipid profiles, and markedly down-regulated the expression of the tumor necrosis factor α (TNFα), interleukin-6 (IL-6), and nuclear factor κB (NF-κB) genes. Metabolomics analysis conducted using gas chromatography time-of-flight mass spectrometry (GC-TOF/MS) indicated that RA administration promoted the recovery of metabolites involved in glycerophospholipid metabolism, insulin signaling pathway, and glutathione metabolism in the livers of obese mice. These findings suggest that RA may ameliorate diet-induced obesity by alleviating oxidative stress and modulating lipid metabolism.
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Affiliation(s)
- Tao Wu
- State Key Laboratory of Food Nutrition and Safety (Tianjin University of Science and Technology), Tianjin 300457, China.
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Zhang H, Liu J, Li G, Wei J, Chen H, Zhang C, Zhao J, Wang Y, Dang S, Li X, Fang X, Liu L, Liu M. Fresh red raspberry phytochemicals suppress the growth of hepatocellular carcinoma cells by PTEN/AKT pathway. Int J Biochem Cell Biol 2018; 104:55-65. [PMID: 30195065 DOI: 10.1016/j.biocel.2018.09.003] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Revised: 08/17/2018] [Accepted: 09/04/2018] [Indexed: 12/24/2022]
Abstract
The red raspberry (Rubus idaeus L.) is a common fruit worldwide and its extract has been found to inhibit the growth of many types of tumors, mainly because it is rich in bioactive phytochemicals. However, the mechanism underlying its anticancer activity in hepatocellular carcinoma (HCC) is not well understood. Herein, the aim of this study was to determine the effects of red raspberry phytochemicals on the proliferation of hepatocellular carcinoma cells and to elucidate its biochemical and molecular targets. CCK8 and colony formation, as well as flow cytometry assays, were employed to determine the effects of red raspberry extract (RRE) on cell proliferation and cell cycle distribution in HCC cells. Our results showed that RRE significantly inhibited cell proliferation and arrested cell cycle progression at the S phase in HCC cells. RRE increased the expression of phosphatase and tensin homologue deleted on chromosome 10 (PTEN) by reducing the methylation status of the PTEN gene promoter and inhibiting DNMT1 expression and regulated AKT signaling pathway. These findings show that red raspberry phytochemicals inhibit the proliferation of HCC cells by regulating PTEN/AKT signaling pathway, providing evidence that RRE may be used as a potential auxiliary therapy for patients with HCC.
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Affiliation(s)
- Haopeng Zhang
- Department of General Surgery & Bio-Bank of General Surgery, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
| | - Jiaren Liu
- Department of Clinical Laboratory, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
| | - Guodong Li
- Department of General Surgery & Bio-Bank of General Surgery, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
| | - Jiufeng Wei
- Department of General Surgery & Bio-Bank of General Surgery, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
| | - Hongsheng Chen
- Department of General Surgery & Bio-Bank of General Surgery, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
| | - Chunpeng Zhang
- Department of General Surgery & Bio-Bank of General Surgery, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
| | - Jinlu Zhao
- Department of General Surgery & Bio-Bank of General Surgery, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
| | - Yunfeng Wang
- Department of General Surgery & Bio-Bank of General Surgery, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
| | - Shuwei Dang
- Department of General Surgery & Bio-Bank of General Surgery, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
| | - Xinglong Li
- Department of General Surgery & Bio-Bank of General Surgery, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
| | - Xuan Fang
- Department of General Surgery & Bio-Bank of General Surgery, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
| | - Lianxin Liu
- Department of Hepatic Surgery, The First Affiliated Hospital of Harbin Medical University & Key Laboratory of Hepatosplenic Surgery Ministry of Education, Harbin, 150001, China
| | - Ming Liu
- Department of General Surgery & Bio-Bank of General Surgery, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, 150001, China.
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