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Liu J, Wang H, Shao H, Sun J, Dong C, Chen R, Kang J. Isolation and characterization of dihydrohomoisoflavonoids from Portulaca oleracea L. PHYTOCHEMISTRY 2024; 222:114071. [PMID: 38552709 DOI: 10.1016/j.phytochem.2024.114071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 03/23/2024] [Accepted: 03/25/2024] [Indexed: 04/01/2024]
Abstract
Eight pairs of dihydrohomoisoflavonoids (1-8), including four pairs of enantiomeric aglycones [(R,S)-portulacanones B (1) and C (2) and (R,S)-oleracones C (3) and Q (4)] and four pairs of epimeric glycosides [portulacasides A-D and epiportulacasides A-D (5-8)], were obtained from Portulaca oleracea L. Among them, (R,S)-oleracone Q (4) and four pairs of epimeric glycosides (5-8) were reported for the first time. The 50% EtOH fraction from the 70% EtOH extract prevented HepG2 human liver cancer cell damage induced by N-acetyl-p-aminophenol (APAP), and the cell survival rate was 62.3%. Portulacaside B (6a), which was isolated from the 50% EtOH fraction, exhibited hepatoprotective and anti-inflammatory effects. The compound increased the survival rate of APAP-damaged HepG2 human liver cancer cells from 40.0% to 51.2% and reduced nitric oxide production in RAW 264.7 macrophages, resulting in an inhibitory rate of 46.8%.
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Affiliation(s)
- Jianbo Liu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing Key Laboratory of Polymorphic Drugs, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 1 Xiannongtan Street, Beijing, 100050, China
| | - Hongqing Wang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing Key Laboratory of Polymorphic Drugs, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 1 Xiannongtan Street, Beijing, 100050, China
| | - Hongjie Shao
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing Key Laboratory of Polymorphic Drugs, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 1 Xiannongtan Street, Beijing, 100050, China
| | - Junhua Sun
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing Key Laboratory of Polymorphic Drugs, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 1 Xiannongtan Street, Beijing, 100050, China
| | - Chaoxuan Dong
- Department of Anesthesiology, The First Affiliated Hospital of Jinan University, Guangzhou Overseas Chinese Hospital, Jinan University, 613 W. Huangpu Avenue, Guangzhou, Guangdong Province, 510630, China
| | - Ruoyun Chen
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing Key Laboratory of Polymorphic Drugs, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 1 Xiannongtan Street, Beijing, 100050, China
| | - Jie Kang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing Key Laboratory of Polymorphic Drugs, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, No. 1 Xiannongtan Street, Beijing, 100050, China.
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Baghdadi G, Shidfar F, Dehnad A. The effect of pomegranate consumption on cardiovascular risk factors in hemodialysis patients: A systematic review of clinical trials. Phytother Res 2023; 37:4963-4975. [PMID: 37485775 DOI: 10.1002/ptr.7961] [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: 03/15/2022] [Revised: 04/12/2023] [Accepted: 06/30/2023] [Indexed: 07/25/2023]
Abstract
Patients undergoing maintenance dialysis have a significantly higher incidence of cardiovascular disease (CVD) compared with the general population. CVD is the most common cause of morbidity and mortality among hemodialysis patients, and has been attributed, among other causes, to increased oxidative stress, inflammation, hypertension and dyslipidemia. Pomegranate, a popular fruit worldwide, has demonstrated health benefits such as antioxidative, antidiabetic, antihypertensive, antihyperlipidemic and anti-inflammatory effects. In this systematic review of clinical trials, we aim to summarize the effect of different parts of pomegranate and the effects of its use on CVD risk factors in hemodialysis patients. PubMed/MEDLINE, EMBASE, Scopus, and Web of Science were searched to identify eligible clinical trials up to December 2021. Ultimately, seven clinical trials were included in this study. Different parts of pomegranate used in these trials were pomegranate juice, pomegranate extract and pomegranate peel extract. The duration of the studies varied from one dialysis session to 1 year. Our results showed that different parts of pomegranate may have anti-hypertensive, antioxidant, anti-inflammatory effects and improve lipid profile by decreasing TG (triglycerides) and increasing HDL-C (high-density lipoprotein cholesterol) in hemodialysis patients. However, due to limited number of studies, more clinical trials need to be performed.
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Affiliation(s)
- Ghazal Baghdadi
- Department of Nutrition, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
| | - Farzad Shidfar
- Department of Nutrition, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
- Colorectal Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Afsaneh Dehnad
- Department of English Language, School of Health Management and Information Sciences, Center for Educational Research in Medical Sciences (CERMS), Iran University of Medical Sciences, Tehran, Iran
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3
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Ameliorative Sexual Behavior and Phosphodiesterase-5 Inhibitory Effects of Spondias mangifera Fruit Extract in Rodents: In Silico, In Vitro, and In Vivo Study. J Clin Med 2022; 11:jcm11133732. [PMID: 35807028 PMCID: PMC9267661 DOI: 10.3390/jcm11133732] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 06/07/2022] [Accepted: 06/22/2022] [Indexed: 12/14/2022] Open
Abstract
The ethanolic extracts of Spondias mangifera fruit (SMFE) were evaluated for aphrodisiac activity. The in-vitro phosphodiesterase-5 (PDE-5) inhibition was assessed based on in-silico molecular docking and simulation studies. In addition, the in-vivo sexual behavior was analyzed in the form of mount (MF, ML), intromission (IF, IL), and ejaculation (EF, EL) frequencies and latencies to validate the in-vitro results. Some biochemical parameters, including PDE-5, nitric oxide, and testosterone, were also observed. The above extract constituted β-amyrin, β-sitosterol, and oleanolic acid and showed tremendous binding with phosphodiesterase-5 and sildenafil. Both the sildenafil and ethanolic extracts (200 and 400 mg/kg/d bodyweight) significantly (p < 0.1, p < 0.05) increased MF, IF, and EF, respectively. In contrast, ML and IL significantly (p < 0.1) decreased, and EL significantly (p < 0.1) increased compared with a normal group of animals. The ethanolic extracts (200 and 400 mg/kg/d bodyweight) and sildenafil further significantly (p < 0.05, p < 0.1) diminished PDE-5 activity significantly (p < 0.05, p < 0.1) and enhanced nitric oxide and testosterone levels, as compared with normal rodents. Therefore, the S. mangifera ethanolic extract might be a valuable alternate aphrodisiac for erectile dysfunction.
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MuhamedAhmed A, Niazi ZR, Hanif M, Rafey A, Iqbal K, Pieters L, Amin A. Computational analysis and in vitro investigation on Citrus flavonoids for inflammatory, diabetic and AGEs targets. BRAZ J PHARM SCI 2022. [DOI: 10.1590/s2175-97902022e201056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
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de Almeida CR, Bezagio RC, Colli CM, Romera LIL, Ferrari A, Gomes ML. Elimination of Giardia duodenalis BIV in vivo using natural extracts in microbiome and dietary supplements. Parasitol Int 2021; 86:102484. [PMID: 34688884 DOI: 10.1016/j.parint.2021.102484] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2021] [Revised: 09/19/2021] [Accepted: 10/14/2021] [Indexed: 12/27/2022]
Abstract
In this study, a combination therapy of several natural products was evaluated in vivo in the Giardia duodenalis infection model. G. duodenalis infected mice were treated as follows: distilled water (infected control C+), BIOintestil® (BIO; natural products of Cymbopogon martinii and Zingiber officinale), MicrobiomeX® (MBX; extract of Citrus sinensis and Citrus paradisi), MBX + BIO, Camellia sinensis tea (CPR; black tea). These natural compounds were administered in a dose of 100 mg/day and were compared to G. duodenalis-infected mice treated with albendazole (ALB; 50 mg/Kg/day) and metronidazole (MET; 500 mg/Kg/day), the conventional therapies used to this day. One group remained un-infected and untreated as our control group (C-). Treatment started 8 days after infection, and after 5 days of treatment (7 days for MET), all animals were followed for 15 days. We continuously checked for the presence of G. duodenalis by Faust method, in association with detection of the parasite by PCR from feces, as well for the presence of trophozoites in the intestinal mucosa after sacrifice. Animals treated with MBX, BIO and MBX + BIO presented an undetectable parasitic load until the 15th day of monitoring, while animals treated with CPR, MET and ALB continued to release cysts. Animals in the MBX, MBX + BIO, ALB groups consumed lower feed, MBX, CPR, MET had greater weight and MBX, MBX + BIO, BIO, CPR, C- consumed more water when compared to infected-group control. MBX and BIO alone or associated eliminated G. duodenalis without apparent adverse effects and animals of these groups showed better clinical performance in relation to those with high parasitic load. MET, ALB and CPR only decreased the number of cysts, indicating limitations and therapeutic failure.
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Affiliation(s)
| | - Renata Coltro Bezagio
- Post-Graduation Program in Health Sciences, Universidade Estadual de Maringá (UEM), Paraná, CEP 87020-900, Brazil
| | - Cristiane Maria Colli
- Department of Basic Health Sciences, Universidade Estadual de Maringá (UEM), Paraná, CEP 87020-900, Brazil
| | - Liara Izabela Lopes Romera
- Post-Graduation Program in Health Sciences, Universidade Estadual de Maringá (UEM), Paraná, CEP 87020-900, Brazil
| | - Ariana Ferrari
- Post-Graduation in Clean Technologies, Universidade Cesumar (CESUMAR), Paraná, CEP 87050-390, Brazil
| | - Mônica Lúcia Gomes
- Department of Basic Health Sciences, Universidade Estadual de Maringá (UEM), Paraná, CEP 87020-900, Brazil
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Badshah SL, Faisal S, Muhammad A, Poulson BG, Emwas AH, Jaremko M. Antiviral activities of flavonoids. Biomed Pharmacother 2021; 140:111596. [PMID: 34126315 PMCID: PMC8192980 DOI: 10.1016/j.biopha.2021.111596] [Citation(s) in RCA: 129] [Impact Index Per Article: 43.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 04/02/2021] [Accepted: 04/05/2021] [Indexed: 12/16/2022] Open
Abstract
Flavonoids are natural phytochemicals known for their antiviral activity. The flavonoids acts at different stages of viral infection, such as viral entrance, replication and translation of proteins. Viruses cause various diseases such as SARS, Hepatitis, AIDS, Flu, Herpes, etc. These, and many more viral diseases, are prevalent in the world, and some (i.e. SARS-CoV-2) are causing global chaos. Despite much struggle, effective treatments for these viral diseases are not available. The flavonoid class of phytochemicals has a vast number of medicinally active compounds, many of which are studied for their potential antiviral activity against different DNA and RNA viruses. Here, we reviewed many flavonoids that showed antiviral activities in different testing environments such as in vitro, in vivo (mice model) and in silico. Some flavonoids had stronger inhibitory activities, showed no toxicity & the cell proliferation at the tested doses are not affected. Some of the flavonoids used in the in vivo studies also protected the tested mice prophylactically from lethal doses of virus, and effectively prevented viral infection. The glycosides of some of the flavonoids increased the solubility of some flavonoids, and therefore showed increased antiviral activity as compared to the non-glycoside form of that flavonoid. These phytochemicals are active against different disease-causing viruses, and inhibited the viruses by targeting the viral infections at multiple stages. Some of the flavonoids showed more potent antiviral activity than the market available drugs used to treat viral infections.
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Affiliation(s)
- Syed Lal Badshah
- Department of Chemistry, Islamia College University Peshawar, Peshawar 25120, Khyber Pakhtunkhwa, Pakistan.
| | - Shah Faisal
- Department of Chemistry, Islamia College University Peshawar, Peshawar 25120, Khyber Pakhtunkhwa, Pakistan
| | - Akhtar Muhammad
- Department of Chemistry, Islamia College University Peshawar, Peshawar 25120, Khyber Pakhtunkhwa, Pakistan
| | - Benjamin Gabriel Poulson
- Division of Biological and Environmental Sciences and Engineering (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Abdul Hamid Emwas
- Division of Biological and Environmental Sciences and Engineering (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Mariusz Jaremko
- Division of Biological and Environmental Sciences and Engineering (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia.
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Karimi A, Naeini F, Asghari Azar V, Hasanzadeh M, Ostadrahimi A, Niazkar HR, Mobasseri M, Tutunchi H. A comprehensive systematic review of the therapeutic effects and mechanisms of action of quercetin in sepsis. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2021; 86:153567. [PMID: 33940332 DOI: 10.1016/j.phymed.2021.153567] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Revised: 03/30/2021] [Accepted: 04/02/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND Sepsis is a life-threatening condition caused by a dysregulated host response to infection. Several studies have indicated that flavonoids exhibit a wide variety of biological actions including free radical scavenging and antioxidant activities. Quercetin, one of the most extensively distributed flavonoids in the vegetables and fruits, presents various biological activities including modulation of oxidative stress, anti-infectious, anti-inflammatory, and neuroprotective activities. METHODS The present systematic review was conducted according to the guidelines of the Preferred Reporting Items for Systematic Review and Meta-Analysis (PRISMA) statements. We searched Web of Sciences, Google Scholar, PubMed, Scopus, and Embase databases up to February 2021 by using the relevant keywords. RESULTS Out of 672 records screened, 35 articles met the study criteria. The evidence reviewed here indicates that quercetin supplementation may exert beneficial effects on sepsis by attenuating inflammation and oxidative stress, downregulating the mRNA expression of toll-like receptors (TLRs), modulating the immune response, and alleviating sepsis-related organ dysfunctions. CONCLUSION Due to the promising therapeutic effects of quercetin on sepsis complications and the lack of clinical trials in this regard, future human randomized clinical trials are warranted.
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Affiliation(s)
- Arash Karimi
- Nutrition Research Center, Department of Clinical Nutrition, School of Nutrition & Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Fatemeh Naeini
- Department of Clinical Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Science, Tehran, Iran
| | - Vahid Asghari Azar
- Department of Medical Genetics, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Malihe Hasanzadeh
- Department of Biology, Ardabil Branch Islamic Azad University, Ardabil, Iran
| | - Alireza Ostadrahimi
- Nutrition Research Center, Department of Clinical Nutrition, School of Nutrition & Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hamid Reza Niazkar
- Student Research Committee, Gonabad University of Medical Sciences, Gonabad, Iran
| | - Majid Mobasseri
- Endocrine Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Helda Tutunchi
- Nutrition Research Center, Department of Clinical Nutrition, School of Nutrition & Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran; Endocrine Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
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Kavali CM, Nguyen TQ, Zahr AS, Jiang LI, Kononov T. A Randomized, Double-Blind, Split-Body, Placebo-Controlled Clinical Study to Evaluate the Efficacy and Tolerability of a Topical Body Firming Moisturizer for Upper Arm Rejuvenation. Aesthet Surg J 2021; 41:NP472-NP483. [PMID: 32462206 DOI: 10.1093/asj/sjaa134] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Aging of upper arm skin, induced by intrinsic and extrinsic factors, often results in a loss of contour, elasticity, and firmness, and an increase in laxity, crepiness, roughness, and photodamage. A topical body firming moisturizer (TBFM) was developed to target all aspects of skin aging. OBJECTIVES The aim of this study was to evaluate the efficacy and tolerability of the TBFM for upper arm firming and rejuvenation. METHODS Forty female subjects, 40 to 60 years old, Fitzpatrick skin type II to V, with mild to moderate laxity, crepiness, and photodamage on the upper arms, were recruited into the study, 10 of whom were selected for biopsy analysis. Subjects were randomly allocated to apply the TBFM and placebo moisturizer on the assigned arms twice daily for 12 weeks. At each visit, efficacy and tolerability evaluation, self-assessment, and standardized clinical photography were performed. Ultrasound measurements were performed at baseline, week 8 and week 12. RESULTS Efficacy evaluation by a clinical grader and bioinstrumentation analysis showed the TBFM improved all skin parameters of the aged upper arm while outperforming the placebo moisturizer after 12 weeks. Clinical photography showed the test product toned and firmed the skin. The TBFM was well tolerated and well perceived by the subjects. Ultrasound images indicated an improvement in skin density and skin structure at week 12. CONCLUSIONS This clinical trial indicates that the TBFM was well tolerated and was effective in improving crepey, lax, and photodamaged skin of the upper arms after 12 weeks of treatment twice daily. LEVEL OF EVIDENCE: 2
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Affiliation(s)
| | | | | | - Lily I Jiang
- Thomas J. Stephens and Associates, Inc., Richardson, TX
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Meziant L, Bachir-bey M, Bensouici C, Saci F, Boutiche M, Louaileche H. Assessment of inhibitory properties of flavonoid-rich fig (Ficus carica L.) peel extracts against tyrosinase, α-glucosidase, urease and cholinesterases enzymes, and relationship with antioxidant activity. Eur J Integr Med 2021. [DOI: 10.1016/j.eujim.2020.101272] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Ciumărnean L, Milaciu MV, Runcan O, Vesa ȘC, Răchișan AL, Negrean V, Perné MG, Donca VI, Alexescu TG, Para I, Dogaru G. The Effects of Flavonoids in Cardiovascular Diseases. Molecules 2020; 25:E4320. [PMID: 32967119 PMCID: PMC7571023 DOI: 10.3390/molecules25184320] [Citation(s) in RCA: 144] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 09/13/2020] [Accepted: 09/18/2020] [Indexed: 12/14/2022] Open
Abstract
Flavonoids are metabolites of plants and fungus. Flavonoid research has been paid special attention to in recent times after the observation of their beneficial effects on the cardiovascular system. These favorable effects are exerted by flavonoids mainly due to their antioxidant properties, which result from the ability to decrease the oxidation of low-density lipoproteins, thus improving the lipid profiles. The other positive effect exerted on the cardiovascular system is the ability of flavonoids to produce vasodilation and regulate the apoptotic processes in the endothelium. Researchers suggested that these effects, including their anti-inflammatory function, are consequences of flavonoids' potent antioxidant properties, but recent studies have shown multiple signaling pathways linked to them, thus suggesting that there are more mechanisms involved in the beneficial effect of the flavonoids on the human body. This review aims to present the latest data on the classification of these substances, their main mechanisms of action in the human body, and the beneficial effects on the physiological and pathological status of the cardiovascular system.
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Affiliation(s)
- Lorena Ciumărnean
- Department 5—Internal Medicine, 4th Medical Clinic, Faculty of Medicine, “Iuliu Haţieganu” University of Medicine and Pharmacy, 400015 Cluj-Napoca, Romania; (L.C.); (M.V.M.); (M.-G.P.); (V.N.); (T.-G.A.); (I.P.)
| | - Mircea Vasile Milaciu
- Department 5—Internal Medicine, 4th Medical Clinic, Faculty of Medicine, “Iuliu Haţieganu” University of Medicine and Pharmacy, 400015 Cluj-Napoca, Romania; (L.C.); (M.V.M.); (M.-G.P.); (V.N.); (T.-G.A.); (I.P.)
| | - Octavia Runcan
- Regional Institute of Gastroenterology and Hepatology ‘Octavian Fodor’ Cluj-Napoca, 400162 Cluj-Napoca, Romania;
| | - Ștefan Cristian Vesa
- Department 2—Functional Sciences, Discipline of Pharmacology, Toxicology and Clinical Pharmacology, Faculty of Medicine, “Iuliu Haţieganu” University of Medicine and Pharmacy, 400337 Cluj-Napoca, Romania
| | - Andreea Liana Răchișan
- Department of Pediatrics, “Iuliu Hațieganu” University of Medicine and Pharmacy, 400177 Cluj-Napoca, Romania
| | - Vasile Negrean
- Department 5—Internal Medicine, 4th Medical Clinic, Faculty of Medicine, “Iuliu Haţieganu” University of Medicine and Pharmacy, 400015 Cluj-Napoca, Romania; (L.C.); (M.V.M.); (M.-G.P.); (V.N.); (T.-G.A.); (I.P.)
| | - Mirela-Georgiana Perné
- Department 5—Internal Medicine, 4th Medical Clinic, Faculty of Medicine, “Iuliu Haţieganu” University of Medicine and Pharmacy, 400015 Cluj-Napoca, Romania; (L.C.); (M.V.M.); (M.-G.P.); (V.N.); (T.-G.A.); (I.P.)
| | - Valer Ioan Donca
- Department of Geriatrics-Gerontology, “Iuliu Haţieganu” University of Medicine and Pharmacy, 400139 Cluj-Napoca, Romania;
| | - Teodora-Gabriela Alexescu
- Department 5—Internal Medicine, 4th Medical Clinic, Faculty of Medicine, “Iuliu Haţieganu” University of Medicine and Pharmacy, 400015 Cluj-Napoca, Romania; (L.C.); (M.V.M.); (M.-G.P.); (V.N.); (T.-G.A.); (I.P.)
| | - Ioana Para
- Department 5—Internal Medicine, 4th Medical Clinic, Faculty of Medicine, “Iuliu Haţieganu” University of Medicine and Pharmacy, 400015 Cluj-Napoca, Romania; (L.C.); (M.V.M.); (M.-G.P.); (V.N.); (T.-G.A.); (I.P.)
| | - Gabriela Dogaru
- Department of Physical Medicine & Rehabilitation, “Iuliu Hațieganu” University of Medicine and Pharmacy, Louis Pasteur Street 6, 400349 Cluj-Napoca, Romania;
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Derakhshanian H, Djalali M, Djazayery A, Javanbakht MH, Zarei M, Hekmatdoost A, Eslamian G, Mirhashemi SS, Dehpour AR. Quercetin Ameliorates Lipid and Apolipoprotein Profile in High-Dose Glucocorticoid Treated Rats. Arq Bras Cardiol 2020; 115:102-108. [PMID: 32813833 PMCID: PMC8384335 DOI: 10.36660/abc.20180397] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Accepted: 08/14/2019] [Indexed: 11/18/2022] Open
Abstract
Background Glucocorticoids (GCs) are widely prescribed for the treatment of numerous clinical disorders due to their anti-inflammatory and immune-modulatory properties and one of the most common untoward effects of these drugs is dyslipidemia. Objective To evaluate the effect of quercetin, a plant-derived flavonoid, on the lipid profile of high-dose glucocorticoid treated rats. Methods A total of 32 Sprague-Dawley rats, were randomly distributed among four groups (8 rats per group) and treated for 6 weeks with one of the following: (i) normal saline; (ii) 40 mg/kg methylprednisolone sodium succinate (MP); (iii) MP + 50 mg/kg quercetin; (iv) MP + 150 mg/kg quercetin. MP was injected subcutaneously, and quercetin was administered by oral gavage 3 days a week. At the end of the study, the animals' lipid profile was measured by enzymatic kits. Data were analyzed and statistical significance was set at p<0.05. Results The mean serum total cholesterol (TC), triglyceride (TG) and LDL levels were drastically increased in GC-treated animals compared with the control group. Both doses of quercetin (50 and 150 mg/kg) ameliorated TC (43% and 45%), LDL (56% and 56%) and TG (46% and 55% respectively). Apo B/A1 ratio decreased more than 20% following quercetin intake and the decline in TC/HDL, TG/HL, LDL/HDL ratios were significant. Conclusions These data suggest that quercetin intake with both doses of 50 and 150 mg/kg could be considered as a protective agent for glucocorticoid-induced dyslipidemia. (Arq Bras Cardiol. 2020; 115(1):102-108.).
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Affiliation(s)
- Hoda Derakhshanian
- Probiotic Research Center, Alborz University of Medical Sciences, Karaj, Irã
| | - Mahmoud Djalali
- Department of Cellular and Molecular Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Irã
| | - Abolghassem Djazayery
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Irã
| | - Mohammad Hassan Javanbakht
- Department of Cellular and Molecular Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Irã
| | - Mahnaz Zarei
- Department of Cellular and Molecular Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Irã
| | - Azita Hekmatdoost
- National Nutrition and Food Technology Research Institute, Faculty of Nutrition Sciences and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Irã
| | - Ghazaleh Eslamian
- Student Research Committee, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Ahmad Reza Dehpour
- Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Irã
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Wang D, Hiebl V, Xu T, Ladurner A, Atanasov AG, Heiss EH, Dirsch VM. Impact of natural products on the cholesterol transporter ABCA1. JOURNAL OF ETHNOPHARMACOLOGY 2020; 249:112444. [PMID: 31805338 DOI: 10.1016/j.jep.2019.112444] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Revised: 11/13/2019] [Accepted: 11/29/2019] [Indexed: 06/10/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE In different countries and areas of the world, traditional medicine has been and is still used for the treatment of various disorders, including chest pain or liver complaints, of which we now know that they can be linked with altered lipid and cholesterol homeostasis. As ATP-binding cassette transporter A1 (ABCA1) plays an essential role in cholesterol metabolism, its modulation may be one of the molecular mechanisms responsible for the experienced benefit of traditional recipes. Intense research activity has been dedicated to the identification of natural products from traditional medicine that regulate ABCA1 expression. AIMS OF THE REVIEW This review surveys natural products, originating from ethnopharmacologically used plants, fungi or marine sources, which influence ABCA1 expression, providing a reference for future study. MATERIALS AND METHODS Information on regulation of ABCA1 expression by natural compounds from traditional medicine was extracted from ancient and modern books, materia medica, and electronic databases (PubMed, Google Scholar, Science Direct, and ResearchGate). RESULTS More than 60 natural compounds from traditional medicine, especially traditional Chinese medicine (TCM), are reported to regulate ABCA1 expression in different in vitro and in vivo models (such as cholesterol efflux and atherosclerotic animal models). These active compounds belong to the classes of polyketides, terpenoids, phenylpropanoids, tannins, alkaloids, steroids, amino acids and others. Several compounds appear very promising in vivo, which need to be further investigated in animal models of diseases related to ABCA1 or in clinical studies. CONCLUSION Natural products from traditional medicine constitute a large promising pool for compounds that regulate ABCA1 expression, and thus may prevent/treat diseases related to cholesterol metabolism, like atherosclerosis or Alzheimer's disease. In many cases, the molecular mechanisms of these natural products remain to be investigated.
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Affiliation(s)
- Dongdong Wang
- Department of Pharmacognosy, University of Vienna, Althanstrasse 14, 1090, Vienna, Austria; The Second Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Fei Shan Jie 32, 550003, Guiyang, China
| | - Verena Hiebl
- Department of Pharmacognosy, University of Vienna, Althanstrasse 14, 1090, Vienna, Austria
| | - Tao Xu
- The Second Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Fei Shan Jie 32, 550003, Guiyang, China
| | - Angela Ladurner
- Department of Pharmacognosy, University of Vienna, Althanstrasse 14, 1090, Vienna, Austria
| | - Atanas G Atanasov
- Department of Pharmacognosy, University of Vienna, Althanstrasse 14, 1090, Vienna, Austria; Department of Molecular Biology, Institute of Genetics and Animal Breeding of the Polish Academy of Sciences, ul. Postepu 36A, 05-552, Jastrzębiec, Poland; Institute of Neurobiology, Bulgarian Academy of Sciences, 23 Acad. G. Bonchevstr., 1113, Sofia, Bulgaria
| | - Elke H Heiss
- Department of Pharmacognosy, University of Vienna, Althanstrasse 14, 1090, Vienna, Austria
| | - Verena M Dirsch
- Department of Pharmacognosy, University of Vienna, Althanstrasse 14, 1090, Vienna, Austria.
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Barati Boldaji R, Akhlaghi M, Sagheb MM, Esmaeilinezhad Z. Pomegranate juice improves cardiometabolic risk factors, biomarkers of oxidative stress and inflammation in hemodialysis patients: a randomized crossover trial. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2020; 100:846-854. [PMID: 31646650 DOI: 10.1002/jsfa.10096] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2019] [Revised: 09/28/2019] [Accepted: 10/13/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND Pomegranate has antioxidant, cardioprotective and anti-inflammatory properties. We designed a crossover study aimed at determining if consumption of pomegranate juice (PJ) improves lipid profile and oxidative and inflammatory biomarkers of hemodialysis patients. Forty-one hemodialysis patients were randomly assigned to one of two groups: PJ-treated group receiving 100 mL of natural PJ immediately after their dialysis session three times a week and the control group receiving the usual care. After 8 weeks, a 4-week washout period was established and then the role of the groups was exchanged. Lipid profile, blood pressure and oxidative and inflammatory biomarkers were measured before and after each sequence. RESULTS Based on the results of intention-to-treat analysis, triglycerides were decreased in PJ condition and increased in the controls. Conversely, high-density lipoprotein cholesterol was increased in PJ and decreased in the control group. Total and low-density lipoprotein cholesterol did not significantly change in either condition. Systolic and diastolic blood pressure significantly decreased in PJ condition. Total antioxidant capacity increased in PJ condition (P < 0.001) and decreased in the controls (P < 0.001). Conversely, malondialdehyde and interleukin-6 decreased in PJ (P < 0.001) and increased in the control group (P ≤ 0.001). The changes of these biomarkers were significantly different between the two conditions. CONCLUSIONS Eight-week PJ consumption showed beneficial effects on blood pressure, serum triglycerides, high-density lipoprotein cholesterol, oxidative stress and inflammation in hemodialysis patients. © 2019 Society of Chemical Industry.
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Affiliation(s)
- Reza Barati Boldaji
- Nutrition Research Center, School of Nutrition and Food Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Masoumeh Akhlaghi
- Nutrition Research Center, School of Nutrition and Food Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohammad Mahdi Sagheb
- Department of Nephrology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Zahra Esmaeilinezhad
- Nutrition Research Center, School of Nutrition and Food Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
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14
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Hsia CW, Tsai CL, Sheu JR, Lu WJ, Hsia CH, Velusamy M, Jayakumar T, Li JY. Suppression of Human Platelet Activation via Integrin α IIbβ 3 Outside-In Independent Signal and Reduction of the Mortality in Pulmonary Thrombosis by Auraptene. Int J Mol Sci 2019; 20:ijms20225585. [PMID: 31717348 PMCID: PMC6888276 DOI: 10.3390/ijms20225585] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Revised: 11/06/2019] [Accepted: 11/07/2019] [Indexed: 12/19/2022] Open
Abstract
Auraptene is the most abundant coumarin derivative from plants. The pharmacological value of this compound has been well demonstrated, especially in the prevention of cancer and neurodegenerative diseases. Platelet activation is a major factor contributing to arterial thrombosis. Thus, this study evaluated the influence of auraptene in platelet aggregation and thrombotic formation. Auraptene inhibited platelet aggregation in human platelets stimulated with collagen only. However, auraptene was not effective in inhibiting platelet aggregation stimulated with thrombin, arachidonic acid, and U46619. Auraptene also repressed ATP release, [Ca2+]i mobilization, and P-selectin expression. Moreover, it markedly blocked PAC-1 binding to integrin αIIbβ3. However, it had no influence on properties related to integrin αIIbβ3-mediated outside-in signaling, such as the adhesion number, spreading area of platelets, and fibrin clot retraction. Auraptene inhibited the phosphorylation of Lyn-Fyn-Syk, phospholipase Cγ2 (PLCγ2), protein kinase C (PKC), Akt, and mitogen-activated protein kinases (MAPKs; extracellular-signal-regulated kinase (ERK1/2), and c-Jun N-terminal kinase (JNK1/2), but not p38 MAPK). Neither SQ22536, an adenylate cyclase inhibitor, nor ODQ, a guanylate cyclase inhibitor, reversed the auraptene-mediated inhibition of platelet aggregation. Auraptene reduced mortality caused by adenosine diphosphate (ADP)-induced pulmonary thromboembolism. In conclusion, this study provides definite evidence that auraptene signifies a potential therapeutic agent for preventing thromboembolic disorders.
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Affiliation(s)
- Chih-Wei Hsia
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei 110, Taiwan; (C.-W.H.); (J.-R.S.); (C.-H.H.); (T.J.)
| | - Cheng-Lin Tsai
- Graduate Institute of Metabolism and Obesity Sciences, College of Nutrition, Taipei Medical University, Taipei 110, Taiwan; (C.-L.T.); (W.-J.L.)
| | - Joen-Rong Sheu
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei 110, Taiwan; (C.-W.H.); (J.-R.S.); (C.-H.H.); (T.J.)
- Department of Pharmacology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan
| | - Wan-Jung Lu
- Graduate Institute of Metabolism and Obesity Sciences, College of Nutrition, Taipei Medical University, Taipei 110, Taiwan; (C.-L.T.); (W.-J.L.)
- Department of Pharmacology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan
- Department of Medical Research, Taipei Medical University Hospital, Taipei 110, Taiwan
| | - Chih-Hsuan Hsia
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei 110, Taiwan; (C.-W.H.); (J.-R.S.); (C.-H.H.); (T.J.)
| | - Marappan Velusamy
- Department of Chemistry, North Eastern Hill University, Shillong 793022, India;
| | - Thanasekaran Jayakumar
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei 110, Taiwan; (C.-W.H.); (J.-R.S.); (C.-H.H.); (T.J.)
| | - Jiun-Yi Li
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei 110, Taiwan; (C.-W.H.); (J.-R.S.); (C.-H.H.); (T.J.)
- Department of Cardiovascular Surgery, Mackay Memorial Hospital, Taipei 104, Taiwan
- Department of Medicine, Mackay Medical College, New Taipei City 252, Taiwan
- Correspondence: ; Tel.: +886-2-2543-3535 (ext. 2945)
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Cattaneo F, Roco J, Alarcón G, Isla MI, Jeréz S. Prosopis alba seed flour improves vascular function in a rabbit model of high fat diet-induced metabolic syndrome. Heliyon 2019; 5:e01967. [PMID: 31485494 PMCID: PMC6716065 DOI: 10.1016/j.heliyon.2019.e01967] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Revised: 05/03/2019] [Accepted: 06/13/2019] [Indexed: 12/13/2022] Open
Abstract
AIMS Prosopis alba flour is a natural source of nutrient and phytochemicals with potential effects on cardiovascular risk factors. The aim of this work was to examine the effects of dietary supplementation with Prosopis alba seed flour (Pr-Feed) on a high fat diet (FD)-induced rabbit model of metabolic syndrome. MAIN METHODS Rabbits were separated in four groups: fed regular diet (CD); CD supplemented with Pr-Feed; fed on 18 % FD; FD supplemented with Pr-Feed. All diets were administrated for 6 weeks. After the feeding period body weights, mean blood pressure, heart rate and visceral abdominal fat (VAF) were determined; glucose tolerance test (GTT) was performed; total cholesterol (TC), HDL-cholesterol, LDL-cholesterol, triglycerides (TG), fasting glucose (FG), aspartate amino transferase, alanine amino transferase, bilirubin and creatinine were measured in serum. Abdominal aorta was excised and vascular function was assessed by acetylcholine relaxation and contractile response to KCl, norepinephrine and angiotensin II. KEY FINDINGS Phytochemical analyses showed that the main compounds of Pr-Feed were apigenin C-glycosides. FD increased VAF, FG, TG, reduced HDL-cholesterol and induced abnormal GTT. Pr-Feed addition to FD did not modify these alterations. Aortic rings from rabbits fed on FD exhibited an impaired relaxation-response to acetylcholine and increased agonist vasoconstrictor responses. Pr Feed-supplemented FD improved the response to acetylcholine, and prevented the increase of the contractile response to KCl, norepinephrine and angiotensin II. SIGNIFICANCE Results suggest that dietary supplementation with Pr-Feed, rich in apigenin C-glycosides, has vascular protector properties and could be used to prevent vascular alterations characterizing the metabolic syndrome.
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Affiliation(s)
- Florencia Cattaneo
- Laboratorio de Investigación de Productos Naturales (LIPRON), Instituto de Bioprospección y fisiología vegetal (INBIOFIV-CONICET), Argentina
| | - Julieta Roco
- Instituto Superior de Investigaciones Biológicas(INSIBIO-CONICET-UNT), Argentina
| | - Gabriela Alarcón
- Instituto Superior de Investigaciones Biológicas(INSIBIO-CONICET-UNT), Argentina
| | - María Inés Isla
- Laboratorio de Investigación de Productos Naturales (LIPRON), Instituto de Bioprospección y fisiología vegetal (INBIOFIV-CONICET), Argentina
- Facultad de Ciencias Naturales e IML. Universidad Nacional de Tucumán, San Miguel de Tucumán, Tucumán, Argentina
| | - Susana Jeréz
- Instituto Superior de Investigaciones Biológicas(INSIBIO-CONICET-UNT), Argentina
- Facultad de Ciencias Naturales e IML. Universidad Nacional de Tucumán, San Miguel de Tucumán, Tucumán, Argentina
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Mutavdzin S, Gopcevic K, Stankovic S, Jakovljevic Uzelac J, Labudovic Borovic M, Djuric D. The Effects of Folic Acid Administration on Cardiac Oxidative Stress and Cardiovascular Biomarkers in Diabetic Rats. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:1342549. [PMID: 31308875 PMCID: PMC6594301 DOI: 10.1155/2019/1342549] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Revised: 01/22/2019] [Accepted: 05/15/2019] [Indexed: 01/10/2023]
Abstract
The aim of this study was to examine the effects of folic acid administration on the antioxidant enzyme (superoxide dismutase (SOD) and catalase (CAT)) activities, lactate and malate dehydrogenase (LDH and MDH) activities, and certain LDH and MDH isoform distribution in the cardiac tissue of diabetic Wistar male rats. Diabetes mellitus (DM) was induced by streptozotocin (STZ). There were five groups: C1-control (physiological saline 1 ml/kg, i.p. one day), C2-control with daily physiological saline treatment (1 ml/kg, i.p. 28 days), DM-diabetes mellitus (STZ 100 mg/kg in physiological saline, i.p. one day), FA-folic acid (5 mg/kg in physiological saline, i.p. 28 days), and DM+FA-diabetes mellitus and folic acid group (STZ 100 mg/kg in physiological saline, i.p. one day, and folic acid 5 mg/kg in physiological saline, i.p. 28 days). After four weeks, animal hearts were isolated for measurement of enzyme activities, as well as for histomorphometry analyses. An elevated glucose level and a decreased insulin level were obtained in the DM group. SOD, CAT, and MDH activities were elevated in the DM group, while there was no difference in LDH activity among the groups. In all tested groups, four LDH and three MDH isoforms were detected in the heart tissue, but with differences in their relative activities among the groups. Left ventricular cardiomyocyte transversal diameters were significantly smaller in both diabetic groups. Folic acid treatment of diabetic rats induced a reduced glucose level and reduced CAT, SOD, and MDH activities and alleviated the decrease in cardiomyocyte diameters. In conclusion, increased activities of antioxidant enzymes and MDH may be the consequence of oxidative stress caused by DM. Administration of the folic acid has a protective effect since it leads to reduction in glycemia and activities of the certain examined enzymes in the rats with experimentally induced DM.
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Affiliation(s)
- Slavica Mutavdzin
- Institute of Medical Physiology “Richard Burian”, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Kristina Gopcevic
- Institute of Chemistry in Medicine “Prof. Dr. Petar Matavulj”, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Sanja Stankovic
- Centre of Medical Biochemistry, Clinical Centre of Serbia, Belgrade, Serbia
| | - Jovana Jakovljevic Uzelac
- Institute of Medical Physiology “Richard Burian”, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Milica Labudovic Borovic
- Institute of Histology and Embryology “Aleksandar Dj. Kostic”, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Dragan Djuric
- Institute of Medical Physiology “Richard Burian”, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
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17
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Phosphorylated flavonoids as selective carboxylesterase inhibitors. MENDELEEV COMMUNICATIONS 2019. [DOI: 10.1016/j.mencom.2019.01.020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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18
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Mkrtchyan S, Iaroshenko VO. New Entries to 3-Acylchromones: TM-Catalysed Decarboxylative Cross-Coupling of α-Keto Acids with ortho
-Hydroxyarylenaminones, 2,3-Unsubstituted Chromones and 3-Iodochromones. European J Org Chem 2018. [DOI: 10.1002/ejoc.201801231] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Satenik Mkrtchyan
- Laboratory of Homogeneous Catalysis and Molecular Design at the Centre of Molecular and Macromolecular Studies; Polish Academy of Sciences; Sienkiewicza 112, PL -90-363 Łodź Poland
| | - Viktor O. Iaroshenko
- Laboratory of Homogeneous Catalysis and Molecular Design at the Centre of Molecular and Macromolecular Studies; Polish Academy of Sciences; Sienkiewicza 112, PL -90-363 Łodź Poland
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19
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Daniel OO, Adeoye AO, Ojowu J, Olorunsogo OO. Inhibition of liver mitochondrial membrane permeability transition pore opening by quercetin and vitamin E in streptozotocin-induced diabetic rats. Biochem Biophys Res Commun 2018; 504:460-469. [DOI: 10.1016/j.bbrc.2018.08.114] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Accepted: 08/17/2018] [Indexed: 11/29/2022]
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20
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Soltana H, De Rosso M, Lazreg H, Vedova AD, Hammami M, Flamini R. LC-QTOF characterization of non-anthocyanic flavonoids in four Tunisian fig varieties. JOURNAL OF MASS SPECTROMETRY : JMS 2018; 53:817-823. [PMID: 29859515 DOI: 10.1002/jms.4209] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Revised: 05/17/2018] [Accepted: 05/18/2018] [Indexed: 06/08/2023]
Abstract
Flavonoids are compounds characterized by antioxidant activity, and their intake in the human diet is considered useful for health and nutrition. Non-anthocyanic flavonoids in 4 different types of Tunisian figs belonging to the smyrna-type Ficus carica varieties known as Kholi, Tchich Asal, Himri, and Bidhi were studied by liquid chromatography/high-resolution mass spectrometry UHPLC-QqTOF. Twenty-two compounds belonging to the classes of flavanones (naringenin and eriodictyol), flavones (3 apigenin and 5 luteolin derivatives), and flavonols (2 kaempferol and 7 quercetin derivatives) were identified. Three O-methoxy flavonols (tamarixetin, syringetin, and isorhamnetin-3-O-glucoside) were found in figs for the first time. Total content of non-anthocyanic flavonoids found in dark varieties (between 410 and 830 mg/kg) show that these F. carica are fruits qualitatively and quantitatively rich of dietary polyphenols.
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Affiliation(s)
- Hala Soltana
- University of Monastir, Research Laboratory LR12ES05: Lab-NAFS, Faculty of Medicine, Monastir, Tunisia
| | - Mirko De Rosso
- Viticulture & Oenology (CREA-VE), Council for Agricultural Research and Economics, Viale XXVIII Aprile 26, Conegliano, TV, 31015, Italy
| | - Houda Lazreg
- University of Monastir, Research Laboratory LR12ES05: Lab-NAFS, Faculty of Medicine, Monastir, Tunisia
| | - Antonio Dalla Vedova
- Viticulture & Oenology (CREA-VE), Council for Agricultural Research and Economics, Viale XXVIII Aprile 26, Conegliano, TV, 31015, Italy
| | - Mohamed Hammami
- University of Monastir, Research Laboratory LR12ES05: Lab-NAFS, Faculty of Medicine, Monastir, Tunisia
| | - Riccardo Flamini
- Viticulture & Oenology (CREA-VE), Council for Agricultural Research and Economics, Viale XXVIII Aprile 26, Conegliano, TV, 31015, Italy
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Wahlang B, McClain C, Barve S, Gobejishvili L. Role of cAMP and phosphodiesterase signaling in liver health and disease. Cell Signal 2018; 49:105-115. [PMID: 29902522 PMCID: PMC6445381 DOI: 10.1016/j.cellsig.2018.06.005] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Revised: 06/08/2018] [Accepted: 06/09/2018] [Indexed: 02/06/2023]
Abstract
Liver disease is a significant health problem worldwide with mortality reaching around 2 million deaths a year. Non-alcoholic fatty liver disease (NAFLD) and alcoholic liver disease (ALD) are the major causes of chronic liver disease. Pathologically, NAFLD and ALD share similar patterns of hepatic disorders ranging from simple steatosis to steatohepatitis, fibrosis and cirrhosis. It is becoming increasingly important to identify new pharmacological targets, given that there is no FDA-approved therapy yet for either NAFLD or ALD. Since the evolution of liver diseases is a multifactorial process, several mechanisms involving parenchymal and non-parenchymal hepatic cells contribute to the initiation and progression of liver pathologies. Moreover, certain protective molecular pathways become repressed during liver injury including signaling pathways such as the cyclic adenosine monophosphate (cAMP) pathway. cAMP, a key second messenger molecule, regulates various cellular functions including lipid metabolism, inflammation, cell differentiation and injury by affecting gene/protein expression and function. This review addresses the current understanding of the role of cAMP metabolism and consequent cAMP signaling pathway(s) in the context of liver health and disease. The cAMP pathway is extremely sophisticated and complex with specific cellular functions dictated by numerous factors such abundance, localization and degradation by phosphodiesterases (PDEs). Furthermore, because of the distinct yet divergent roles of both of its effector molecules, the cAMP pathway is extensively targeted in liver injury to modify its role from physiological to therapeutic, depending on the hepatic condition. This review also examines the behavior of the cAMP-dependent pathway in NAFLD, ALD and in other liver diseases and focuses on PDE inhibition as an excellent therapeutic target in these conditions.
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Affiliation(s)
- Banrida Wahlang
- University of Louisville Alcohol Research Center, School of Medicine, University of Louisville, KY, USA; Department of Medicine, School of Medicine, University of Louisville, KY, USA
| | - Craig McClain
- University of Louisville Alcohol Research Center, School of Medicine, University of Louisville, KY, USA; Department of Medicine, School of Medicine, University of Louisville, KY, USA; Department of Pharmacology and Toxicology, School of Medicine, University of Louisville, KY, USA; Hepatobiology & Toxicology Center, School of Medicine, University of Louisville, KY, USA; Robley Rex Louisville VAMC, Louisville, KY, USA
| | - Shirish Barve
- University of Louisville Alcohol Research Center, School of Medicine, University of Louisville, KY, USA; Department of Medicine, School of Medicine, University of Louisville, KY, USA; Department of Pharmacology and Toxicology, School of Medicine, University of Louisville, KY, USA; Hepatobiology & Toxicology Center, School of Medicine, University of Louisville, KY, USA
| | - Leila Gobejishvili
- University of Louisville Alcohol Research Center, School of Medicine, University of Louisville, KY, USA; Department of Medicine, School of Medicine, University of Louisville, KY, USA; Department of Pharmacology and Toxicology, School of Medicine, University of Louisville, KY, USA; Hepatobiology & Toxicology Center, School of Medicine, University of Louisville, KY, USA.
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Novel Therapeutic Agent against Platelet Activation In Vitro and Arterial Thrombosis In Vivo by Morin Hydrate. Int J Mol Sci 2018; 19:ijms19082386. [PMID: 30104547 PMCID: PMC6121409 DOI: 10.3390/ijms19082386] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 08/10/2018] [Accepted: 08/13/2018] [Indexed: 01/05/2023] Open
Abstract
Morin hydrate, a bioactive flavonoid, has been proven to prevent inflammation and apoptosis of cells. Flavonoids can reduce the risk of cardiovascular diseases, in which platelet activation plays a major role. This study investigated the effect of morin hydrate on platelet activation in vitro and in vivo. Morin hydrate markedly inhibited platelet aggregation stimulated by collagen in human platelets but not that stimulated by other agonists. In collagen-activated platelets, morin hydrate inhibited adenosine triphosphate (ATP) release; intracellular Ca2+ mobilization; P-selectin expression; and phosphorylation of phospholipase Cγ2 (PLCγ2), protein kinase C (PKC), and Akt. In mitogen-activated protein kinase (MAPK) activation, morin hydrate evidently diminished ERK2 or JNK1 activation, except for p38 MAPK. Additionally, morin hydrate markedly reduced the OH· signals in platelet suspensions but not in the cell-free system (Fenton reaction solution). Moreover, morin hydrate substantially increased the occlusion time of thrombotic platelet plug formation but had no effect on bleeding time in mice. In conclusion, morin hydrate crucially inhibits platelet activation through inhibition of the PLCγ2–PKC cascade and subsequent suppression of Akt and MAPK activation, thereby ultimately inhibiting platelet aggregation. Therefore, this paper suggests that morin hydrate constitutes a novel and potential natural therapeutic product for preventing or treating thromboembolic disorders.
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Ravishankar D, Salamah M, Akimbaev A, Williams HF, Albadawi DAI, Vaiyapuri R, Greco F, Osborn HMI, Vaiyapuri S. Impact of specific functional groups in flavonoids on the modulation of platelet activation. Sci Rep 2018; 8:9528. [PMID: 29934595 PMCID: PMC6015034 DOI: 10.1038/s41598-018-27809-z] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Accepted: 06/05/2018] [Indexed: 01/01/2023] Open
Abstract
Flavonoids exert innumerable beneficial effects on cardiovascular health including the reduction of platelet activation, and thereby, thrombosis. Hence, flavonoids are deemed to be a molecular template for the design of novel therapeutic agents for various diseases including thrombotic conditions. However, the structure-activity relationships of flavonoids with platelets is not fully understood. Therefore, this study aims to advance the current knowledge on structure-activity relationships of flavonoids through a systematic analysis of structurally-related flavones. Here, we investigated a panel of 16 synthetic flavones containing hydroxy or methoxy groups at C-7,8 positions on the A-ring, with a phenyl group or its bioisosteres as the B-ring, along with their thio analogues possessing a sulfur molecule at the 4th carbon position of the C-ring. The antiplatelet efficacies of these compounds were analysed using human isolated platelets upon activation with cross-linked collagen-related peptide by optical aggregometry. The results demonstrate that the hydroxyl groups in flavonoids are important for optimum platelet inhibitory activities. In addition, the 4-C=O and B ring phenyl groups are less critical for the antiplatelet activity of these flavonoids. This structure-activity relationship of flavonoids with the modulation of platelet function may guide the design, optimisation and development of flavonoid scaffolds as antiplatelet agents.
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Yakubu MT, Olutoye AF. Aphrodisiac activity of aqueous extract of Anthonotha macrophylla P. Beauv. leaves in female Wistar rats. JOURNAL OF INTEGRATIVE MEDICINE-JIM 2018; 14:400-8. [PMID: 27641611 DOI: 10.1016/s2095-4964(16)60271-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
OBJECTIVE This study investigated the aphrodisiac activity of aqueous extract of Anthonotha macrophylla leaves (AEAML) in female Wistar rats. METHODS Thirty female rats were assigned into five groups of six animals each, such that rats in groups A, B, C, D and E received orally 1 mL of distilled water only, 5.7 mg/kg body weight (BW) of Exus Ginseng (a polyherbal formulation), 25, 50 and 100 mg/kg BW of AEAML, respectively. After 1 h of treatment, female sexual behaviour parameters were monitored for 30 min. Luteinizing hormone (LH), follicle stimulating hormone (FSH), estradiol (E) and testosterone were also determined using standard methods. RESULTS Six secondary metabolites were detected in AEAML with alkaloids (13.00 mg/L) being the highest. AEAML at 25 and 50 mg/kg BW significantly (P<0.05) increased the darting frequency, hopping frequency, lordosis frequency, anogenital grooming, genital grooming and licking behaviour, whereas the darting latency, hopping latency and lordosis latency decreased (P<0.05) in a manner comparable with Exus Ginseng. The 25 and 50 mg/kg BW of AEAML increased (P<0.05) the serum concentrations of FSH, LH and E, like Exus Ginseng, whereas testosterone content was not altered (P>0.05). The 100 mg/kg BW of AEAML did not alter (P>0.05) the sexual behaviour parameters, serum FSH, LH and E contents, whereas testosterone content increased significantly. The ovarian histology of the animals treated with Exus Ginseng, AEAML at 25 and 50 mg/kg BW revealed developing and ruptured follicles with numerous corpora lutea in the stroma, whereas the 100 mg/kg BW of AEAML produced fewer follicles and corpora lutea. CONCLUSION The enhanced proceptive, receptive and orientation components of the female sexual behaviour by the 25 and 50 mg/kg BW of AEAML confers sexual invigorating potential on the plant. This study thus justifies the folkloric claim of the plant as a female aphrodisiac.
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Affiliation(s)
- Musa Toyin Yakubu
- Phytomedicine, Toxicology and Reproductive Biochemistry Research Laboratory, Department of Biochemistry, University of Ilorin, Ilorin 24003, Nigeria
| | - Abdulquadri Funmbi Olutoye
- Phytomedicine, Toxicology and Reproductive Biochemistry Research Laboratory, Department of Biochemistry, University of Ilorin, Ilorin 24003, Nigeria
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Phenolic components and assessment of biological properties of Tchihatchewia isatidea Boiss. extracts: Docking and functional approaches for designing novel products. Food Chem Toxicol 2018; 111:423-431. [DOI: 10.1016/j.fct.2017.11.055] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2017] [Revised: 11/23/2017] [Accepted: 11/29/2017] [Indexed: 01/02/2023]
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Effect of pineapple, orange and watermelon juices on phosphodiesterase, monoamine oxidase and angiotensin-I converting enzyme activities in rat heart and brain homogenates. ACTA ACUST UNITED AC 2017. [DOI: 10.1007/s13596-017-0279-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Quercetin and tin protoporphyrin attenuate hepatic ischemia reperfusion injury: role of HO-1. Naunyn Schmiedebergs Arch Pharmacol 2017; 390:871-881. [DOI: 10.1007/s00210-017-1389-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Accepted: 05/24/2017] [Indexed: 12/14/2022]
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Effects of pressed degreased walnut meal extracts on lipid metabolism in postnatally monosodium glutamate-induced mice and 3T3-L1 preadipocytes. J Funct Foods 2017. [DOI: 10.1016/j.jff.2017.01.026] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
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Pandit C, Anilakumar KR. Cold adaptive thermogenesis following consumption of certain pungent spice principles: A validation study. J Therm Biol 2016; 64:35-40. [PMID: 28166943 DOI: 10.1016/j.jtherbio.2016.12.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2016] [Revised: 12/13/2016] [Accepted: 12/23/2016] [Indexed: 11/19/2022]
Abstract
Identifying a means to activate or potentiate thermogenic mechanisms through ingestion of dietary compounds have important implications in cold endurance and survival. Although many reports discuss the thermogenic potential of spices, it is surprising that none of the studies verify whether consumption of spices can improve cold endurance. In this study, we have attempted to evaluate if ingestion of certain spices can activate heat-generating mechanisms in the body such that a fall in. core body temperature (CBT) can be delayed or prevented when faced with a cold challenge. Ten commonly used spices in the Indian cuisine were chosen and 70% ethanol extract of the spices were fed orally to male Wistar rats at a dose of 250mg/kg for a period of 7 days. A change in CBT during cold exposure was recorded before and after treatment. At the end of the experiment, plasma norepinephrine and serum free fatty acid levels were estimated. We observed that among the ten spices, treatment with cinnamon and pepper extracts showed significant improvement in comparison to the control group. Based on evidence in literature and the HPLC-MS analysis from our lab, we hypothesized that the effects of the pepper and cinnamon extracts might be due to their piperine and cinnamaldehyde content respectively. However, no improved endurance was observed when they were administered alone. Poor endurance following depletion of endogenous norepinephrine levels using reserpine indicated its involvement in mediating the heat generating processes. However, it is noteworthy that green tea and spice treated animals exhibited a fall in CBT which was lower than their initial fall. In conclusion, our findings provide experimental evidence that ingestion of spices, viz., pepper and cinnamon, might elicit thermogenic responses such that hypothermia can be delayed or prevented upon cold exposure.
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Affiliation(s)
- Chaitanya Pandit
- Defence Food Research Laboratory, DRDO, Mysore 570011, Karnataka, India.
| | - K R Anilakumar
- Defence Food Research Laboratory, DRDO, Mysore 570011, Karnataka, India.
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Najafian M, Najafian B, Najafian Z. The Effect of Aspalathin on Levels of Sugar and Lipids in Streptozotocin-Induced Diabetic and Normal Rats. ACTA ACUST UNITED AC 2016. [DOI: 10.17795/zjrms-4963] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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31
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Janda E, Lascala A, Martino C, Ragusa S, Nucera S, Walker R, Gratteri S, Mollace V. Molecular mechanisms of lipid- and glucose-lowering activities of bergamot flavonoids. PHARMANUTRITION 2016. [DOI: 10.1016/j.phanu.2016.05.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Patten GS, Abeywardena MY, Bennett LE. Inhibition of Angiotensin Converting Enzyme, Angiotensin II Receptor Blocking, and Blood Pressure Lowering Bioactivity across Plant Families. Crit Rev Food Sci Nutr 2016; 56:181-214. [PMID: 24915402 DOI: 10.1080/10408398.2011.651176] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Hypertension is a major risk factor for coronary heart disease, kidney disease, and stroke. Interest in medicinal or nutraceutical plant bioactives to reduce hypertension has increased dramatically. The main biological regulation of mammalian blood pressure is via the renin-angiotensin-aldosterone system. The key enzyme is angiotensin converting enzyme (ACE) that converts angiotensin I into the powerful vasoconstrictor, angiotensin II. Angiotensin II binds to its receptors (AT1) on smooth muscle cells of the arteriole vasculature causing vasoconstriction and elevation of blood pressure. This review focuses on the in vitro and in vivo reports of plant-derived extracts that inhibit ACE activity, block angiotensin II receptor binding and demonstrate hypotensive activity in animal or human studies. We describe 74 families of plants that exhibited significant ACE inhibitory activity and 16 plant families with potential AT1 receptor blocking activity, according to in vitro studies. From 43 plant families including some of those with in vitro bioactivity, the extracts from 73 plant species lowered blood pressure in various normotensive or hypertensive in vivo models by the oral route. Of these, 19 species from 15 families lowered human BP when administered orally. Some of the active plant extracts, isolated bioactives and BP-lowering mechanisms are discussed.
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Affiliation(s)
- Glen S Patten
- a CSIRO Preventative Health National Research Flagship, Animal, Food and Health Sciences , Adelaide , South Australia , Australia
| | - Mahinda Y Abeywardena
- a CSIRO Preventative Health National Research Flagship, Animal, Food and Health Sciences , Adelaide , South Australia , Australia
| | - Louise E Bennett
- b CSIRO Preventative Health National Research Flagship, Animal, Food and Health Sciences, Werribee , Victoria , British Columbia , Australia
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Zaragozá C, Monserrat J, Mantecón C, Villaescusa L, Zaragozá F, Álvarez-Mon M. Antiplatelet activity of flavonoid and coumarin drugs. Vascul Pharmacol 2016; 87:139-149. [PMID: 27616636 DOI: 10.1016/j.vph.2016.09.002] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Revised: 07/22/2016] [Accepted: 09/06/2016] [Indexed: 01/16/2023]
Abstract
Polyphenols are used as phlebotonic drugs, but their mechanism of action remains unknown. Since platelet activity and platelet-endothelial cell interactions are involved in the pathogenesis of cardiovascular disease, this work examines whether different flavonoid and coumarin drugs are able to inhibit platelet aggregation. This specific case of coumarins, the antiplatelet effect is not linked with a possible interaction over blood coagulation since this effect only dicoumarols have it. The antiplatelet capacity of polyphenols was assayed using peripheral blood platelets from healthy controls. The distribution of the different platelets subsets was quantified by flow cytometry, using the calcium ionophore as a pro-aggregant. The number of GPIIb/IIIa receptors occupied by the drugs was assayed by flow cytometry using two CD61 surface fluorescein antibodies. All the polyphenols tested inhibited platelet aggregation. A percentage antiplatelet activity of 88.91±7.98% was recorded for naringin, 48.43±8.84% for naringenin, 53.83±7.87% for esculetin, 54.65±6.91% for fraxetin, and 25.75±4.12% for coumarin. Naringin showed significantly greater percentage occupation of GPIIb/IIIa receptors than did naringenin (14.82±0.81% vs. 3.90±0.55%), and esculetin returned significantly higher values than fraxetin and coumarin (12.47±0.97 vs. 7.53±0.49 and 7.90±0.69 respectively). All drugs show important antiplatelet activity. Naringin was the best antiplatelet compound, showing the greatest antiplatelet activity and the highest percentage binding of GPIIb/IIIa receptors. However, any of the compounds used could be used in the prevention of cardiovascular disease.
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Affiliation(s)
- Cristina Zaragozá
- Biomedical Sciences Department, Pharmacology Unit, University of Alcalá, Alcalá de Henares, 28871 Madrid, Spain.
| | - Jorge Monserrat
- Laboratory of Immune System Diseases and Oncology, Department of Medicine and Medical Specialties, University of Alcalá, Alcala de Henares, 28871 Madrid, Spain.
| | - Carolina Mantecón
- Biomedical Sciences Department, Pharmacology Unit, University of Alcalá, Alcalá de Henares, 28871 Madrid, Spain.
| | - Lucinda Villaescusa
- Biomedical Sciences Department, Pharmacology Unit, University of Alcalá, Alcalá de Henares, 28871 Madrid, Spain.
| | - Francisco Zaragozá
- Biomedical Sciences Department, Pharmacology Unit, University of Alcalá, Alcalá de Henares, 28871 Madrid, Spain.
| | - Melchor Álvarez-Mon
- Laboratory of Immune System Diseases and Oncology, Department of Medicine and Medical Specialties, University of Alcalá, Alcala de Henares, 28871 Madrid, Spain; Immune System Diseases and Oncology Service, University Hospital "Príncipe de Asturias", Alcalá de Henares, 28871 Madrid, Spain.
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Punicalagin Induces Serum Low-Density Lipoprotein Influx to Macrophages. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2016; 2016:7124251. [PMID: 27516832 PMCID: PMC4969581 DOI: 10.1155/2016/7124251] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/24/2016] [Revised: 05/11/2016] [Accepted: 05/31/2016] [Indexed: 02/03/2023]
Abstract
High levels of circulating low-density lipoprotein (LDL) are a primary initiating event in the development of atherosclerosis. Recently, the antiatherogenic effect of polyphenols has been shown to be exerted via a mechanism unrelated to their antioxidant capacity and to stem from their interaction with specific intracellular or plasma proteins. In this study, we investigated the interaction of the main polyphenol in pomegranate, punicalagin, with apolipoprotein B-100 (ApoB100) that surrounds LDL. Punicalagin bound to ApoB100 at low concentrations (0.25–4 μM). Upon binding, it induced LDL influx to macrophages in a concentration-dependent manner, up to 2.5-fold. In contrast, another polyphenol which binds to ApoB100, glabridin, did not affect LDL influx. We further showed that LDL influx occurs specifically through the LDL receptor, with LDL then accumulating in the cell cytoplasm. Taken together with the findings of Aviram et al., 2000, that pomegranate juice and punicalagin induce plasma LDL removal and inhibit macrophage cholesterol synthesis and accumulation, our results suggest that, upon binding, punicalagin stimulates LDL influx to macrophages, thus reducing circulating cholesterol levels.
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Hajizadeh-Sharafabad F, Alizadeh M, Mohammadzadeh MHS, Alizadeh-Salteh S, Kheirouri S. Effect of Gundelia tournefortii L. extract on lipid profile and TAC in patients with coronary artery disease: A double-blind randomized placebo controlled clinical trial. J Herb Med 2016. [DOI: 10.1016/j.hermed.2016.02.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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36
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Mallick N, Khan RA. Antihyperlipidemic effects of Citrus sinensis, Citrus paradisi, and their combinations. J Pharm Bioallied Sci 2016; 8:112-8. [PMID: 27134462 PMCID: PMC4832900 DOI: 10.4103/0975-7406.171727] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
Objective: Hyperlipidemia, extensively contributes in the progression of coronary heart diseases and atherosclerosis, but may be managed through alterations in the nutritional pattern. Several studies show that diet rich in polyphenols and antioxidants have antiatherogenic effects. Citrus sinensis and Citrus paradisi are widely known for health benefits and have found to produce antioxidant, anti-inflammatory, and hypolipidemic effects, hence current research was planned to determine the hypolipidemic effects of C. sinensis and C. paradisi in rats receiving diet rich in cholesterol. Materials and Methods: All rats were divided into 11 groups each comprising 10 animals: Normal control group and hyperlipidemic control. C. sinensis treated three groups, C. paradisi treated three groups, C. sinensis and C. paradisi combination treated two groups, and group treated atorvastatin. All rats in the respective groups were treated orally with sterile water, juices, and standard drug for 8 weeks and lipid profile was estimated at the end of dosing. Results: Cholesterol, triglycerides (TGs), and low-density lipoprotein (LDL) were decreased at all the three doses of C. sinensis and C. paradisi but rise in high-density lipoprotein (HDL) was only significant at 8 ml/kg, and 0.3 ml/kg, respectively. Animals received the combination doses of C. sinensis and C. paradisi also showed a highly significant fall in cholesterol, LDL, and TGs, however HDL level was significantly elevated by SPJ-2 combination. Conclusion: Results suggest that C. sinensis and C. paradisi possess antihyperlipidemic activity due to phytochemicals and other essential nutrients, hence may serve as cardioprotective by preventing thrombosis.
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Affiliation(s)
- Neelam Mallick
- Department of Pharmacology, Faculty of Pharmacy, University of Karachi, Karachi 75270, Pakistan
| | - Rafeeq Alam Khan
- Department of Pharmacology, Faculty of Pharmacy, University of Karachi, Karachi 75270, Pakistan
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Du G, Sun L, Zhao R, Du L, Song J, Zhang L, He G, Zhang Y, Zhang J. Polyphenols: Potential source of drugs for the treatment of ischaemic heart disease. Pharmacol Ther 2016; 162:23-34. [PMID: 27113411 DOI: 10.1016/j.pharmthera.2016.04.008] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Accepted: 04/05/2016] [Indexed: 12/09/2022]
Abstract
Polyphenols, which are naturally present in plants, have been studied for their chemical and pharmacological properties. Polyphenols have been found to exhibit various bioactivities such as antioxidant, free radical scavenging and anti-inflammatory effects, in addition to regulating the intracellular free calcium levels. These bioactivities are related to the underlying mechanisms of ischaemic heart diseases. Pharmacological studies have proven polyphenols to be effective in treating cardiovascular diseases in various ways, particularly ischaemic heart diseases. Based on their mode of action, we propose that some polyphenols can be developed as drugs to treat ischaemic heart diseases. For this purpose, a strategy to evaluate the therapeutic value of drugs for ischaemic heart diseases is needed. Despite several advances in percutaneous coronary intervention (PCI), the incidence of myocardial infarction and deaths due to cardiovascular diseases has not decreased markedly in China. Due to their pleiotropic properties and structural diversity, polyphenols have been of great interest in pharmacology. In the present review, we summarize the pharmacological effects and mechanisms of polyphenols reported after 2000, and we analyse the benefits or druggability of these compounds for ischaemic heart diseases.
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Affiliation(s)
- Guanhua Du
- Beijing Key Laboratory of Drug Target Research and Drug Screening, State Key Laboratory for Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100050, China.
| | - Lan Sun
- Beijing Key Laboratory of Drug Target Research and Drug Screening, State Key Laboratory for Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100050, China
| | - Rui Zhao
- Beijing Key Laboratory of Drug Target Research and Drug Screening, State Key Laboratory for Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100050, China
| | - Lida Du
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Junke Song
- Beijing Key Laboratory of Drug Target Research and Drug Screening, State Key Laboratory for Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100050, China
| | - Li Zhang
- Beijing Key Laboratory of Drug Target Research and Drug Screening, State Key Laboratory for Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100050, China
| | - Guorong He
- Beijing Key Laboratory of Drug Target Research and Drug Screening, State Key Laboratory for Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100050, China
| | - Yongxiang Zhang
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Institute of Pharmacology and Toxicology, Beijing 100850, China
| | - Juntian Zhang
- Beijing Key Laboratory of Drug Target Research and Drug Screening, State Key Laboratory for Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100050, China
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Ruijters EJB, Haenen GRMM, Willemsen M, Weseler AR, Bast A. Food-Derived Bioactives Can Protect the Anti-Inflammatory Activity of Cortisol with Antioxidant-Dependent and -Independent Mechanisms. Int J Mol Sci 2016; 17:239. [PMID: 26891295 PMCID: PMC4783970 DOI: 10.3390/ijms17020239] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2015] [Revised: 01/29/2016] [Accepted: 02/05/2016] [Indexed: 12/12/2022] Open
Abstract
In chronic inflammatory diseases the anti-inflammatory effect of glucocorticoids (GCs) is often decreased, leading to GC resistance. Inflammation is related with increased levels of reactive oxygen species (ROS), leading to oxidative stress which is thought to contribute to the development of GC resistance. Plant-derived compounds such as flavonoids are known for their ability to protect against ROS. In this exploratory study we screened a broad range of food-derived bioactives for their antioxidant and anti-inflammatory effects in order to investigate whether their antioxidant effects are associated with the ability to preserve the anti-inflammatory effects of cortisol. The anti-inflammatory potency of the tested compounds was assessed by measuring the oxidative stress–induced GC resistance in human macrophage-like cells. Cells were pre-treated with H2O2 (800 µM) with and without bioactives and then exposed to lipopolysaccharides (LPS) (10 ng/mL) and cortisol (100 nM). The level of inflammation was deducted from the concentration of interleukin-8 (IL-8) in the medium. Intracellular oxidative stress was measured using the fluorescent probe 2′,7′-dichlorofluorescein (DCFH). We found that most of the dietary bioactives display antioxidant and anti-inflammatory action through the protection of the cortisol response. All compounds, except for quercetin, revealing antioxidant activity also protect the cortisol response. This indicates that the antioxidant activity of compounds plays an important role in the protection of the GC response. However, next to the antioxidant activity of the bioactives, other mechanisms also seem to be involved in this protective, anti-inflammatory effect.
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Affiliation(s)
- Erik J B Ruijters
- Department of Pharmacology and Toxicology, Faculty of Health, Medicine and Health Sciences, Maastricht University, Maastricht 3600 MD, The Netherlands.
| | - Guido R M M Haenen
- Department of Pharmacology and Toxicology, Faculty of Health, Medicine and Health Sciences, Maastricht University, Maastricht 3600 MD, The Netherlands.
| | - Mathijs Willemsen
- Department of Pharmacology and Toxicology, Faculty of Health, Medicine and Health Sciences, Maastricht University, Maastricht 3600 MD, The Netherlands.
| | - Antje R Weseler
- Department of Pharmacology and Toxicology, Faculty of Health, Medicine and Health Sciences, Maastricht University, Maastricht 3600 MD, The Netherlands.
| | - Aalt Bast
- Department of Pharmacology and Toxicology, Faculty of Health, Medicine and Health Sciences, Maastricht University, Maastricht 3600 MD, The Netherlands.
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Prevention of arterial thrombosis by nobiletin: in vitro and in vivo studies. J Nutr Biochem 2015; 28:1-8. [PMID: 26878777 DOI: 10.1016/j.jnutbio.2015.09.024] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2014] [Revised: 09/17/2015] [Accepted: 09/25/2015] [Indexed: 11/24/2022]
Abstract
Nobiletin, a bioactive polymethoxylated flavone isolated from citrus fruits, has been proven to prevent cancer and inflammation. Dietary flavonoids have been shown to reduce the risk of cardiovascular diseases (CVDs), and platelet activation plays a crucial role in CVDs. This study investigated the effect of nobiletin on platelet activation in vitro and in vivo. Nobiletin (10-30μM) inhibited collagen- and arachidonic acid-induced platelet aggregation in washed human platelets, but it did not inhibit platelet aggregation induced by other agonists such as thrombin and 9,11-dideoxy-11α,9α-epoxymethanoprostaglandin. Nobiletin inhibited the phosphorylation of phospholipase PLCγ2, protein kinase PKC, Akt and mitogen-activated protein kinase MAPKs in collagen-activated human platelets and markedly reduced intracellular calcium mobilization and hydroxyl radical (OH(·)) formation. Nobiletin did not affect either phorbol-12,13-dibutyrate-stimulated PKC activation or platelet aggregation. In addition, neither SQ22536, an adenylate cyclase inhibitor nor 1H-[1,2,4]oxadiazolo[4,3-a]quinoxalin-1-one, a guanylate cyclase inhibitor, significantly reversed the nobiletin-mediated inhibition of platelet aggregation. Moreover, nobiletin substantially prolonged the closure time in whole blood according to platelet function analysis and increased the occlusion time of thrombotic platelet plug formation in mice. In conclusion, this study demonstrates for the first time that, in addition to being a potential agent for preventing tumor growth and inflammation, nobiletin exhibits potent antiplatelet activity, which initially inhibits the PLCγ2/PKC cascade and hydroxyl radical formation, subsequently suppresses the activation of Akt and MAPKs and ultimately inhibits platelet activation. Our study suggests that nobiletin represents a potential therapeutic agent for preventing or treating thromboembolic disorders.
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Cock IE. The medicinal properties and phytochemistry of plants of the genus Terminalia (Combretaceae). Inflammopharmacology 2015; 23:203-29. [DOI: 10.1007/s10787-015-0246-z] [Citation(s) in RCA: 90] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2015] [Accepted: 07/20/2015] [Indexed: 02/06/2023]
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Shahzad H, Giribabu N, Sekaran M, Salleh N. Quercetin Induces Dose-Dependent Differential Morphological and Proliferative Changes in Rat Uteri in the Presence and in the Absence of Estrogen. J Med Food 2015; 18:1307-16. [PMID: 26135605 DOI: 10.1089/jmf.2014.3293] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Quercetin could have profound effects on uterine morphology and proliferation, which are known to be influenced by estrogen. This study investigated the effect of quercetin on these uterine parameters in the presence and in the absence of estrogen. Ovariectomized adult female rats received peanut oil, quercetin (10, 50, and 100 mg/kg/day), estrogen, or estrogen+quercetin (10, 50, or 100 mg/kg/day) treatment for 7 consecutive days. At the end of the treatment, uteri were harvested for histological and molecular biological analyses. Distribution of proliferative cell nuclear antigen (PCNA) protein in the uterus was observed by immunohistochemistry. Levels of expression of PCNA protein and mRNA in uterine tissue homogenates were determined by Western blotting and real-time polymerase chain reaction, respectively. Our findings indicated that administration of 10 mg/kg/day of quercetin either alone or with estrogen resulted in decreased uterine expression of PCNA protein and mRNA with the percentage of PCNA-positive cells in uterine luminal and glandular epithelia markedly reduced compared with estrogen-only treatment. Changes in uterine morphology were the opposite of changes observed following estrogen treatment. Treatment with 100 mg/kg/day of quercetin either alone or with estrogen resulted in elevated PCNA protein and mRNA expression. In addition, the percentages of PCNA-positive cells in the epithelia, which line the lumen and glands, were increased with morphological features mimicking changes that occur following estrogen treatment. Following 50 mg/kg/day quercetin treatment, the changes observed were in between those changes that occur following 10 and 100 mg/kg/day quercetin treatment. In conclusion, changes in uterine morphology and proliferation following 10 mg/kg/day quercetin treatment could be attributed to quercetin's antiestrogenic properties, while changes that occur following 100 mg/kg/day quercetin treatment could be attributed to quercetin's estrogenic properties.
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Affiliation(s)
- Huma Shahzad
- 1 Department of Physiology, University of Malaya , Kuala Lumpur, Malaysia
| | - Nelli Giribabu
- 1 Department of Physiology, University of Malaya , Kuala Lumpur, Malaysia
| | - Muniandy Sekaran
- 2 Department of Molecular Medicine, Faculty of Medicine, University of Malaya , Kuala Lumpur, Malaysia
| | - Naguib Salleh
- 1 Department of Physiology, University of Malaya , Kuala Lumpur, Malaysia
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GRID and docking analyses reveal a molecular basis for flavonoid inhibition of Src family kinase activity. J Nutr Biochem 2015; 26:1156-65. [PMID: 26140983 DOI: 10.1016/j.jnutbio.2015.05.004] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2015] [Revised: 05/02/2015] [Accepted: 05/08/2015] [Indexed: 11/21/2022]
Abstract
Flavonoids reduce cardiovascular disease risk through anti-inflammatory, anti-coagulant and anti-platelet actions. One key flavonoid inhibitory mechanism is blocking kinase activity that drives these processes. Flavonoids attenuate activities of kinases including phosphoinositide-3-kinase, Fyn, Lyn, Src, Syk, PKC, PIM1/2, ERK, JNK and PKA. X-ray crystallographic analyses of kinase-flavonoid complexes show that flavonoid ring systems and their hydroxyl substitutions are important structural features for their binding to kinases. A clearer understanding of structural interactions of flavonoids with kinases is necessary to allow construction of more potent and selective counterparts. We examined flavonoid (quercetin, apigenin and catechin) interactions with Src family kinases (Lyn, Fyn and Hck) applying the Sybyl docking algorithm and GRID. A homology model (Lyn) was used in our analyses to demonstrate that high-quality predicted kinase structures are suitable for flavonoid computational studies. Our docking results revealed potential hydrogen bond contacts between flavonoid hydroxyls and kinase catalytic site residues. Identification of plausible contacts indicated that quercetin formed the most energetically stable interactions, apigenin lacked hydroxyl groups necessary for important contacts and the non-planar structure of catechin could not support predicted hydrogen bonding patterns. GRID analysis using a hydroxyl functional group supported docking results. Based on these findings, we predicted that quercetin would inhibit activities of Src family kinases with greater potency than apigenin and catechin. We validated this prediction using in vitro kinase assays. We conclude that our study can be used as a basis to construct virtual flavonoid interaction libraries to guide drug discovery using these compounds as molecular templates.
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Cock IE. The Genus Aloe: Phytochemistry and Therapeutic Uses Including Treatments for Gastrointestinal Conditions and Chronic Inflammation. PROGRESS IN DRUG RESEARCH 2015; 70:179-235. [DOI: 10.1007/978-3-0348-0927-6_6] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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44
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Effects of hypercholesterolemic diet enriched with onion as functional ingredient on fatty acid metabolism in Wistar rats. Food Res Int 2014; 64:546-552. [DOI: 10.1016/j.foodres.2014.07.047] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2014] [Revised: 07/21/2014] [Accepted: 07/24/2014] [Indexed: 11/18/2022]
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Somerset S, Papier K. A Food Frequency Questionnaire Validated for Estimating Dietary Flavonoid Intake in an Australian Population. Nutr Cancer 2014; 66:1200-10. [DOI: 10.1080/01635581.2014.951728] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Lasaite L, Spadiene A, Savickiene N, Skesters A, Silova A. The Effect of Ginkgo biloba and Camellia sinensis Extracts on Psychological State and Glycemic Control in Patients with Type 2 Diabetes Mellitus. Nat Prod Commun 2014. [DOI: 10.1177/1934578x1400900931] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Interest in finding natural antioxidants for use in food or medical materials to prevent free radical imbalance has increased considerably over the past years. The aim of this research was to evaluate changes in glycemic control and psychological state of patients with type 2 diabetes mellitus (T2DM) after use of antioxidant plant preparations. Fifty-six patients with T2DM were randomly allocated to receive standardized Ginkgo biloba L. leaves dry extract, green tea dry extract, or placebo capsules. Diabetes glycemic control measured as glycated hemoglobin (HbA1c) level, antioxidant state and psychological data were evaluated at baseline, after 9 and 18 months of using either antioxidant preparations or placebo. The level of perceived stress lowered significantly after 9 months ( p=0.038) and 18 months ( p=0.030), and the psychological aspect of quality of life significantly improved after 18 months ( p=0.019) of use of G. biloba extract. No significant differences were detected after using green tea extract. In patients using placebo, significant lowering of HbA1c level was observed after 18 months ( p=0.017). In conclusion, antioxidant G. biloba leaf extract exhibited a mild effect on psychological state and a trend of improving glycemic control in patients with type 2 diabetes mellitus.
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Affiliation(s)
- Lina Lasaite
- Institute of Endocrinology, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Asta Spadiene
- Department of Drug Chemistry, Faculty of Pharmacy, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Nijole Savickiene
- Department of Pharmacognosy, Faculty of Pharmacy, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Andrejs Skesters
- Laboratory of Biochemistry, Riga Stradins University, Riga, Latvia
| | - Alise Silova
- Laboratory of Biochemistry, Riga Stradins University, Riga, Latvia
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47
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A review of α-amylase inhibitors on weight loss and glycemic control in pathological state such as obesity and diabetes. ACTA ACUST UNITED AC 2014. [DOI: 10.1007/s00580-014-1967-x] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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48
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Goliomytis M, Tsoureki D, Simitzis P, Charismiadou M, Hager-Theodorides A, Deligeorgis S. The effects of quercetin dietary supplementation on broiler growth performance, meat quality, and oxidative stability. Poult Sci 2014; 93:1957-62. [DOI: 10.3382/ps.2013-03585] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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49
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Ding Y, Zhang B, Zhou K, Chen M, Wang M, Jia Y, Song Y, Li Y, Wen A. Dietary ellagic acid improves oxidant-induced endothelial dysfunction and atherosclerosis: Role of Nrf2 activation. Int J Cardiol 2014; 175:508-14. [DOI: 10.1016/j.ijcard.2014.06.045] [Citation(s) in RCA: 109] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2014] [Revised: 05/05/2014] [Accepted: 06/24/2014] [Indexed: 12/01/2022]
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50
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Singh M, Kaur M, Silakari O. Flavones: an important scaffold for medicinal chemistry. Eur J Med Chem 2014; 84:206-39. [PMID: 25019478 DOI: 10.1016/j.ejmech.2014.07.013] [Citation(s) in RCA: 321] [Impact Index Per Article: 32.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2014] [Revised: 07/03/2014] [Accepted: 07/05/2014] [Indexed: 01/31/2023]
Abstract
Flavones have antioxidant, anti-proliferative, anti-tumor, anti-microbial, estrogenic, acetyl cholinesterase, anti-inflammatory activities and are also used in cancer, cardiovascular disease, neurodegenerative disorders, etc. Also, flavonoids are found to have an effect on several mammalian enzymes like protein kinases that regulate multiple cell signaling pathways and alterations in multiple cellular signaling pathways are frequently found in many diseases. Flavones have been an indispensable anchor for the development of new therapeutic agents. The majority of metabolic diseases are speculated to originate from oxidative stress, and it is therefore significant that recent studies have shown the positive effect of flavones on diseases related to oxidative stress. Due to the wide range of biological activities of flavones, their structure-activity relationships have generated interest among medicinal chemists. The outstanding development of flavones derivatives in diverse diseases in very short span of time proves its magnitude for medicinal chemistry research. The present review gives detail about the structural requirement of flavone derivatives for various pharmacological activities. This information may provide an opportunity to scientists of medicinal chemistry discipline to design selective, optimize as well as poly-functional flavone derivatives for the treatment of multi-factorial diseases.
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Affiliation(s)
- Manjinder Singh
- Molecular Modeling Lab, Department of Pharmaceutical Sciences and Drug Research, Punjabi University, Patiala, Punjab 147002, India
| | - Maninder Kaur
- Molecular Modeling Lab, Department of Pharmaceutical Sciences and Drug Research, Punjabi University, Patiala, Punjab 147002, India
| | - Om Silakari
- Molecular Modeling Lab, Department of Pharmaceutical Sciences and Drug Research, Punjabi University, Patiala, Punjab 147002, India.
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