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Ratre P, Kulkarni S, Das S, Liang C, Mishra PK, Thareja S. Medicinal chemistry aspects and synthetic strategies of coumarin as aromatase inhibitors: an overview. MEDICAL ONCOLOGY (NORTHWOOD, LONDON, ENGLAND) 2022; 40:41. [PMID: 36471176 DOI: 10.1007/s12032-022-01916-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Accepted: 11/24/2022] [Indexed: 12/12/2022]
Abstract
Coumarin is a bicyclic oxygen bearing heterocyclic scaffold formed by fusion of benzene with the pyrone ring. Because of its unique physicochemical characteristics and the ease with which it may be transformed into a wide range of functionalized coumarins during synthesis, coumarin provides a privileged scaffold for medicinal chemists. As a result, many coumarin derivatives have been developed, synthesized, and evaluated to target a variety of therapeutic domains, thereby making it an attractive template for designing novel anti-breast cancer compounds. The main culprit in estrogen overproduction in the estrogen-dependent breast cancer (EDBC), is the enzyme aromatase (AR), and it is thought to be a significant target for the effective treatment of EDBC. Considering coumarins versatility, this review presents a detailed overview of diverse study of aromatase as a target for coumarins. An overview of structure-activity relationship analysis of coumarin core is also included so as to summarize the desired pharmacophoric features essential for design and development of aromatase inhibitors (AIs) using coumarin core. Identification of key synthesis techniques that could aid researchers in designing and developing novel analogues with significant anti-breast cancer properties along with their mechanism of action have also been covered in the current review.
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Affiliation(s)
- Pooja Ratre
- Department of Pharmaceutical Sciences and Natural Products, School of Pharmaceutical Sciences, Central University of Punjab, Bathinda, Punjab, 151401, India
| | - Swanand Kulkarni
- Department of Pharmaceutical Sciences and Natural Products, School of Pharmaceutical Sciences, Central University of Punjab, Bathinda, Punjab, 151401, India
| | - Sweety Das
- Department of Pharmaceutical Sciences and Natural Products, School of Pharmaceutical Sciences, Central University of Punjab, Bathinda, Punjab, 151401, India
| | - Chengyuan Liang
- School of Food and Bioengineering, Shaanxi University of Science & Technology, Xi'an, 710 021, People's Republic of China
| | - Pradyumna Kumar Mishra
- Department of Molecular Biology, ICMR-National Institute for Research in Environmental Health, Bhopal, Madhya Pradesh, India
| | - Suresh Thareja
- Department of Pharmaceutical Sciences and Natural Products, School of Pharmaceutical Sciences, Central University of Punjab, Bathinda, Punjab, 151401, India.
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Zamir A, Ben-Zeev T, Hoffman JR. Manipulation of Dietary Intake on Changes in Circulating Testosterone Concentrations. Nutrients 2021; 13:3375. [PMID: 34684376 PMCID: PMC8538516 DOI: 10.3390/nu13103375] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2021] [Revised: 09/22/2021] [Accepted: 09/23/2021] [Indexed: 12/22/2022] Open
Abstract
Elevations in the circulating concentration of androgens are thought to have a positive effect on the anabolic processes leading to improved athletic performance. Anabolic-androgenic steroids have often been used by competitive athletes to augment this effect. Although there has been concerted effort on examining how manipulating training variables (e.g., intensity and volume of training) can influence the androgen response to exercise, there has been much less effort directed at understanding how changes in both macronutrient and micronutrient intake can impact the androgen response. Thus, the focus of this review is to examine the effect that manipulating energy and nutrient intake has on circulating concentrations of testosterone and what the potential mechanism is governing these changes.
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Affiliation(s)
| | | | - Jay R. Hoffman
- Department of Physical Therapy, Faculty of Health Sciences, Ariel University, 40700 Ariel, Israel; (A.Z.); (T.B.-Z.)
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Shen H, Huang L, Dou H, Yang Y, Wu H. Effect of Trilobatin from Lithocarpus polystachyus Rehd on Gut Microbiota of Obese Rats Induced by a High-Fat Diet. Nutrients 2021; 13:nu13030891. [PMID: 33801901 PMCID: PMC8001797 DOI: 10.3390/nu13030891] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 03/04/2021] [Accepted: 03/05/2021] [Indexed: 12/12/2022] Open
Abstract
Trilobatin was identified as the primary bioactive component in the Lithocarpus polystachyus Rehd (LPR) leaves. This study explored the antiobesity effect of trilobatin from LPR leaves and its influence on gut microbiota in obese rats. Results showed that trilobatin could significantly reduce body and liver weight gain induced by a high-fat diet, and the accumulation of perirenal fat, epididymal fat, and brown fat of SD (Male Sprague–Dawley) obese rats in a dose-independent manner. Short-chain fatty acids (SCFAs) concentrations increased, especially the concentration of butyrate. Trilobatin supplementation could significantly increase the relative abundance of Lactobacillus, Prevotella, CF231, Bacteroides, and Oscillospira, and decrease greatly the abundance of Blautia, Allobaculum, Phascolarctobacterium, and Coprococcus, resulting in an increase of the ratio of Bacteroidetes to Firmicutes (except the genera of Lactobacillus and Oscillospira). The Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway predicted by the Phylogenetic Investigation of Communities by Reconstruction of Unobserved States (PICRUSt) indicated the different relative metabolic pathways after trilobatin supplementation. This study may reveal the contribution of gut microbiota to the antiobesity effect of trilobatin from LPR leaves and predict the potential regulatory mechanism for obesity induced by a high-fat diet.
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Affiliation(s)
- Hailiang Shen
- Citrus Research Institute, Southwest University, Chongqing 400000, China; (H.S.); (L.H.); (H.D.)
- Citrus Research Institute, Chinese Academy of Agricultural Science, Chongqing 400000, China
| | - Linhua Huang
- Citrus Research Institute, Southwest University, Chongqing 400000, China; (H.S.); (L.H.); (H.D.)
- Citrus Research Institute, Chinese Academy of Agricultural Science, Chongqing 400000, China
| | - Huating Dou
- Citrus Research Institute, Southwest University, Chongqing 400000, China; (H.S.); (L.H.); (H.D.)
- Citrus Research Institute, Chinese Academy of Agricultural Science, Chongqing 400000, China
| | - Yali Yang
- Department of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi’an 710000, China;
- National Research and Development Center of Apple Processing Technology, Xi’an 710000, China
| | - Houjiu Wu
- Citrus Research Institute, Southwest University, Chongqing 400000, China; (H.S.); (L.H.); (H.D.)
- Citrus Research Institute, Chinese Academy of Agricultural Science, Chongqing 400000, China
- Correspondence: ; Tel./Fax: +86-023-68349701
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Raval M, Gaikar N, Patel S, Hingorani L. Isolation and characterization of flavonoids from fraction of Blepharis persica (Burm. f.) O. Kuntze upregulated testosterone biosynthesis in vitro using TM3 leydig cells. Pharmacogn Mag 2021. [DOI: 10.4103/pm.pm_406_20] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Abstract
Flavonoids, a group of natural substances with variable phenolic structures, are found in fruits, vegetables, grains, bark, roots, stems, flowers, tea and wine. These natural products are well known for their beneficial effects on health and efforts are being made to isolate the ingredients so called flavonoids. Flavonoids are now considered as an indispensable component in a variety of nutraceutical, pharmaceutical, medicinal and cosmetic applications. This is attributed to their anti-oxidative, anti-inflammatory, anti-mutagenic and anti-carcinogenic properties coupled with their capacity to modulate key cellular enzyme function. Research on flavonoids received an added impulse with the discovery of the low cardiovascular mortality rate and also prevention of CHD. Information on the working mechanisms of flavonoids is still not understood properly. However, it has widely been known for centuries that derivatives of plant origin possess a broad spectrum of biological activity. Current trends of research and development activities on flavonoids relate to isolation, identification, characterisation and functions of flavonoids and finally their applications on health benefits. Molecular docking and knowledge of bioinformatics are also being used to predict potential applications and manufacturing by industry. In the present review, attempts have been made to discuss the current trends of research and development on flavonoids, working mechanisms of flavonoids, flavonoid functions and applications, prediction of flavonoids as potential drugs in preventing chronic diseases and future research directions.
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Samaga KKL, Rao GV, Chandrashekara Reddy G, Kush AK, Diwakar L. Synthetic racemates of abyssinone I and II induces apoptosis through mitochondrial pathway in human cervix carcinoma cells. Bioorg Chem 2014; 56:54-61. [PMID: 25019692 DOI: 10.1016/j.bioorg.2014.06.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2013] [Revised: 06/05/2014] [Accepted: 06/09/2014] [Indexed: 01/15/2023]
Abstract
Abyssinones I and II are prenylated flavanones existing in plant Erythrina abyssinica showing diverse biological activities including anticancer activities. We synthesized racemic mixtures of these flavanones from corresponding chalcones and herein we report for the first time the molecular mechanisms of cell death, anti-proliferative effect and ability to induce apoptosis in human cervical carcinoma (HeLa) cells. Cytotoxicity was assessed by MTT assay to determine LD50 for prenylated chalcones and their corresponding flavones. Abyssinones promoted apoptosis by up regulation of p53 and Bax, along with down regulation of Bcl-2. Apoptosis induction was mediated through mitochondrial pathway releasing cytochrome c and Apaf-1 into cytosol; associated with activation of caspase-3. Further they were able to decrease the expression of cell proliferation markers PCNA and cyclin D1 indicating anti proliferative activity. These observations demonstrate that abyssinones trigger apoptosis via mitochondrial pathway by activation of caspase-3 and disrupts cell cycle.
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Affiliation(s)
- Krishna Kumar L Samaga
- Department of Biological Sciences, Vittal Mallya Scientific Research Foundation, BTM II Stage, Bangalore 560076, India
| | | | - G Chandrashekara Reddy
- Chemistry Division, Vittal Mallya Scientific Research Foundation, BTM II Stage, Bangalore 560076, India
| | - Anil Kumar Kush
- Department of Biological Sciences, Vittal Mallya Scientific Research Foundation, BTM II Stage, Bangalore 560076, India
| | - Latha Diwakar
- Department of Biological Sciences, Vittal Mallya Scientific Research Foundation, BTM II Stage, Bangalore 560076, India.
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Nasimolo J, Kiama SG, Gathumbi PK, Makanya AN, Kagira JM. Erythrina abyssinica prevents meningoencephalitis in chronic Trypanosoma brucei brucei mouse model. Metab Brain Dis 2014; 29:509-19. [PMID: 24452611 DOI: 10.1007/s11011-014-9488-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2013] [Accepted: 01/13/2014] [Indexed: 10/25/2022]
Abstract
Human African trypanosomiasis is prevalent in Sub-sahara African countries that lie between 14° North and 29° south of the equator. Sixty million people are at risk of infection. Trypanosoma brucei gambesience occurs in West and Central Africa while Trypanosoma brucei rhodesience occurs in East and Southern Africa. The neurological stage of the disease is characterized by neuroinflammation. About 10% of patients treated with the recommended drug, melarsoprol develop post treatment reactive encephalopathy, which is fatal in 50% of these patients, thus melarsoprol is fatal in 5% of all treated patients. This study was aimed at establishing the potential activity of Erythrina abyssinica in reducing neuroinflammation following infection with Trypanosoma brucei brucei. Swiss white mice were divided into ten groups, two control groups and eight infected groups. Infected mice received either methanol or water extract of Erythrina abyssinica at 12.5, 25, 50 or 100 mg/kg body weight. Parasite counts were monitored in peripheral circulation from the third day post infection up to the end of the study. Brains were processed for histology, immunohistochemistry scanning and transmission electron microscopy. Following infection, trypanosomes were observed in circulation 3 days post-infection, with the parasitaemia occurring in waves. In the cerebrum, typical brain pathology of chronic trypanosomiasis was reproduced. This was exhibited as astrocytosis, perivascular cuffing and infiltration of inflammatory cells into the neuropil. However, mice treated with Erythrina abyssinica water extract exhibited significant reduction in perivascular cuffing, lymphocytic infiltration and astrocytosis in the cerebrum. The methanol extract did not have a significant difference compared to the non-treated group. This study provides evidence of anti-inflammatory properties of Erythrina abyssinica and may support its wide use as a medicinal plant by various communities in Kenya.
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Affiliation(s)
- Johnson Nasimolo
- Department of Veterinary Anatomy and Physiology, University of Nairobi, Nairobi, Kenya,
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