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Asiwe JN, Ojetola AA, Ekene NE, Osirim E, Nnamudi AC, Oritsemuelebi B, Onuelu JE, Asiwe N, Eruotor HO, Inegbenehi S. Pleiotropic attenuating effect of Ginkgo biloba against isoprenaline-induced myocardial infarction via improving Bcl-2/mTOR/ERK1/2/Na +, K +-ATPase activities. CHINESE HERBAL MEDICINES 2024; 16:282-292. [PMID: 38706831 PMCID: PMC11064635 DOI: 10.1016/j.chmed.2023.11.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 08/10/2023] [Accepted: 11/23/2023] [Indexed: 05/07/2024] Open
Abstract
Objective Myocardial infarction (MI) is linked to an imbalance in the supply and demand of blood oxygen in the heart muscles. Beta-blockers and calcium antagonists are just two of the common medications used to treat MI. However, these have reportedly been shown to be either ineffective or to have undesirable side effects. Extract of Ginkgo biloba leaves (GBE), a Chinese herbal product offers special compatibility benefits in therapeutic settings relating to inflammatory diseases and oxidative stress. In order to better understand how GBE affects MI in rats insulted by isoprenaline (ISO), the current study was designed. Methods The heart weight index, serum lipid profile, cardiac marker enzymes, endogenous antioxidants [catalase (CAT), superoxide dismutase (SOD), glutathione (GSH), nitrites and malondialdehyde (MDA)], inflammatory mediators [tumour necrosis factor alpha (TNF-α) and interleukin-6 (IL-6)], immunohistochemical expressions of B-cell lymphoma factor-2 (Bcl-2), extracellular signal-regulated kinase (ERK1/2), and mammalian target of rapamycin (mTOR) and histopathological analysis were used to assess the cardioprotective properties of GBE. Results The findings showed that GBE effectively attenuated myocardial infarction by boosting the body's natural antioxidant defense system and reducing the release of inflammatory cytokines as well as heart injury marker enzymes. The expression of Bcl-2, ERK1/2 and mTOR was increased while the histomorphological alterations were reversed. Conclusion The cardioprotective effects of GBE may be due to a mechanism involving increased Bcl-2/mTOR/ERK1/2/Na+, K+-ATPase activity.
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Affiliation(s)
- Jerome Ndudi Asiwe
- Department of Physiology, Delta State University, Abraka 1, Nigeria
- Department of Physiology, University of Ibadan, Ibadan 3017, Nigeria
| | | | | | | | | | | | | | - Nicholas Asiwe
- Department of Anatomy, University of Port Harcourt, Choba 5323, Nigeria
| | | | - Saviour Inegbenehi
- Department of Biochemistry, PAMO University of Medical Sciences, Port Harcourt 500211, Nigeria
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Gao H, Chen N, An N, Zhan Y, Wang H, Feng C. Harnessing the potential of ginkgo biloba extract: Boosting denitrification performance through accelerated electron transfer. CHEMOSPHERE 2024; 352:141368. [PMID: 38316282 DOI: 10.1016/j.chemosphere.2024.141368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Revised: 01/14/2024] [Accepted: 02/02/2024] [Indexed: 02/07/2024]
Abstract
Ginkgo biloba extract (GBE) had several effects on the human body as one of the widely used phytopharmaceuticals, but it had no application in microbial enhancement in the environmental field. The study focused on the impact of GBE on denitrification specifically under neutral conditions. At the identified optimal addition ratio of 2% (v/v), the system exhibited a noteworthy increase in nitrate reduction rate (NRR) by 56.34%, elevating from 0.71 to 1.11 mg-N/(L·h). Moreover, the extraction of microbial extracellular polymeric substance (EPS) at this ratio revealed changes in the composition of EPS, the electron exchange capacity (EEC) was enhanced from 87.16 to 140.4 μmol/(g C), and the transfer impedance was reduced within the EPS. The flavin, fulvic acid (FA), and humic acid (HA) provided a π-electron conjugated structure for the denitrification system, enhancing extracellular electron transfer (EET) by stimulating carbon source metabolism. GBE also improved electron transfer system activity (ETSA) from 0.025 to 0.071 μL O2/(g·min·prot) and the content of NADH enhanced by 22.90% while significantly reducing the activation energy (Ea) by 85.6% in the denitrification process. The synergy of improving both intracellular and extracellular electron transfer, along with the reduction of Ea, notably amplified the initiation and reduction rates of the denitrification process. Additionally, GBE demonstrated suitability for denitrification across various pH levels, enhancing microbial resilience in alkaline conditions and promoting survival and proliferation. Overall, these findings open the door to potential applications of GBE as a natural additive in the environmental field to improve the efficiency of denitrification processes, which are essential for nitrogen removal in various environmental contexts.
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Affiliation(s)
- Hang Gao
- School of Water Resources and Environment, MOE Key Laboratory of Groundwater Circulation and Environmental Evolution, China University of Geosciences (Beijing), Beijing, 100083, China
| | - Nan Chen
- School of Water Resources and Environment, MOE Key Laboratory of Groundwater Circulation and Environmental Evolution, China University of Geosciences (Beijing), Beijing, 100083, China.
| | - Ning An
- School of Water Resources and Environment, MOE Key Laboratory of Groundwater Circulation and Environmental Evolution, China University of Geosciences (Beijing), Beijing, 100083, China
| | - Yongheng Zhan
- School of Water Resources and Environment, MOE Key Laboratory of Groundwater Circulation and Environmental Evolution, China University of Geosciences (Beijing), Beijing, 100083, China
| | - Haishuang Wang
- School of Water Resources and Environment, MOE Key Laboratory of Groundwater Circulation and Environmental Evolution, China University of Geosciences (Beijing), Beijing, 100083, China
| | - Chuanping Feng
- School of Water Resources and Environment, MOE Key Laboratory of Groundwater Circulation and Environmental Evolution, China University of Geosciences (Beijing), Beijing, 100083, China
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Ungureanu AR, Popovici V, Oprean C, Danciu C, Schröder V, Olaru OT, Mihai DP, Popescu L, Luță EA, Chițescu CL, Gîrd CE. Cytotoxicity Analysis and In Silico Studies of Three Plant Extracts with Potential Application in Treatment of Endothelial Dysfunction. Pharmaceutics 2023; 15:2125. [PMID: 37631338 PMCID: PMC10459174 DOI: 10.3390/pharmaceutics15082125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 08/06/2023] [Accepted: 08/09/2023] [Indexed: 08/27/2023] Open
Abstract
Endothelial dysfunction is the basis of the physiopathological mechanisms of vascular diseases. In addition to the therapeutic activity of plant extracts, cytotoxicity is significant. This research evaluates the cytotoxicity of three vegetal extracts (Calendulae flos extract-CE, Ginkgo bilobae folium extract-GE, and Sophorae flos extract-SE). In vitro evaluation was performed using an endothelial cell line model (Human Pulmonary Artery Endothelial Cells-HPAEC) when a dose-dependent cytotoxic activity was observed after 72 h. The IC50 values were calculated for all extracts: Calendulae flos extract (IC50 = 91.36 μg/mL), Sophorae flos extract (IC50 = 68.61 μg/mL), and Ginkgo bilobae folium extract (IC50 = 13.08 μg/mL). Therefore, at the level of HPAEC cells, the cytotoxicity of the extracts follows the order GE > SE > CE. The apoptotic mechanism implied in cell death was predicted for several phytocompounds using the PASS algorithm and molecular docking simulations, highlighting potential interactions with caspases-3 and -8. In vivo analysis was performed through brine shrimp lethality assay (BSLA) when lethal, behavioral, and cytological effects were evaluated on Artemia salina larvae. The viability examined after 24 h (assessment of lethal effects) follows the same sequence: CE > SE > GE. In addition, the predicted cell permeability was observed mainly for GE constituents through in silico studies. However, the extracts can be considered nontoxic according to Clarckson's criteria because no BSL% was registered at 1200 µg/mL. The obtained data reveal that all three extracts are safe for human use and suitable for incorporation in further pharmaceutical formulations.
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Affiliation(s)
- Andreea Roxana Ungureanu
- Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, 6 Traian Vuia Street, 020956 Bucharest, Romania; (A.R.U.); (O.T.O.); (L.P.); (E.-A.L.); (C.E.G.)
| | - Violeta Popovici
- Department of Microbiology and Immunology, Faculty of Dental Medicine, Ovidius University of Constanta, 7 Ilarie Voronca Street, 900684 Constanta, Romania;
| | - Camelia Oprean
- Faculty of Pharmacy, “Victor Babeş” University of Medicine and Pharmacy, 2 Eftimie Murgu Street, 300041 Timisoara, Romania;
- OncoGen Centre, County Hospital’ Pius Branzeu’, Blvd. Liviu Rebreanu 156, 300723 Timisoara, Romania
| | - Corina Danciu
- Faculty of Pharmacy, “Victor Babeş” University of Medicine and Pharmacy, 2 Eftimie Murgu Street, 300041 Timisoara, Romania;
| | - Verginica Schröder
- Department of Cellular and Molecular Biology, Faculty of Pharmacy, Ovidius University of Constanta, 6 Capitan Al. Serbanescu Street, 900001 Constanta, Romania;
| | - Octavian Tudorel Olaru
- Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, 6 Traian Vuia Street, 020956 Bucharest, Romania; (A.R.U.); (O.T.O.); (L.P.); (E.-A.L.); (C.E.G.)
| | - Dragoș Paul Mihai
- Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, 6 Traian Vuia Street, 020956 Bucharest, Romania; (A.R.U.); (O.T.O.); (L.P.); (E.-A.L.); (C.E.G.)
| | - Liliana Popescu
- Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, 6 Traian Vuia Street, 020956 Bucharest, Romania; (A.R.U.); (O.T.O.); (L.P.); (E.-A.L.); (C.E.G.)
| | - Emanuela-Alice Luță
- Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, 6 Traian Vuia Street, 020956 Bucharest, Romania; (A.R.U.); (O.T.O.); (L.P.); (E.-A.L.); (C.E.G.)
| | - Carmen Lidia Chițescu
- Faculty of Medicine and Pharmacy, “Dunărea de Jos” University of Galați, A.I. Cuza 35, 800010 Galați, Romania;
| | - Cerasela Elena Gîrd
- Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, 6 Traian Vuia Street, 020956 Bucharest, Romania; (A.R.U.); (O.T.O.); (L.P.); (E.-A.L.); (C.E.G.)
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Behera SK, Huwaikem M, Jena B, Shah MP, Chakrabortty S, Tripathy SK, Mishra A. Fabrication of ZnO/Gypsum/Gelatine nanocomposites films and their antibacterial mechanism against Staphylococcus aureus. Biotechnol Genet Eng Rev 2023:1-24. [PMID: 37243587 DOI: 10.1080/02648725.2023.2216419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Accepted: 05/12/2023] [Indexed: 05/29/2023]
Abstract
Staphylococcus aureus (S. aureus) has long been acknowledged as being one of the most harmful bacteria for human civilization. It is the main contributor to skin and soft tissue infections. The gram positive pathogen also contributes to bloodstream infections, pneumonia, or bone and joint infections. Hence, developing an efficient and targeted treatment for these illnesses is greatly desired. Recently, studies on nanocomposites (NCs) have significantly increased due to their potent antibacterial and antibiofilm properties. These NCs provide an intriguing way to control the growth of bacteria without causing the development of resistance strains that come from improper or excessive use of the conventional antibiotics. In this context, we have demonstrated the synthesis of a NC system by precipitation of ZnO nanoparticles (NPs) on Gypsum followed by encapsulation with Gelatine, in the present study. Fourier transform infrared (FTIR) spectroscopy was used to validate the presence of ZnO NPs and Gypsum. The film was characterized by X-ray diffraction (XRD) spectroscopy and scanning electron microscopy (SEM). The system exhibited promising antibiofilm action and was effective in combating S. aureus and MRSA in concentrations between 10 and 50 ug/ml. The bactericidal mechanism by release of reactive oxygen species (ROS) was anticipated to be induced by the NC system. Studies on cell survival and in-vitro infection support the film's notable biocompatibility and its potential for treating Staphylococcus infections in the future.
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Affiliation(s)
- Susanta Kumar Behera
- School of Biotechnology, Kalinga Institute of Industrial Technology, Bhubaneswar, India
- IMGENEX India Pvt. Ltd, Bhubaneswar, India
| | - Mashael Huwaikem
- Clinical Nutrition Department, College of Applied Medical Sciences, King Faisal University, Al Ahsa, Saudi Arabia
| | - Bhumika Jena
- School of Biotechnology, Kalinga Institute of Industrial Technology, Bhubaneswar, India
| | | | - Sankha Chakrabortty
- School of Biotechnology, Kalinga Institute of Industrial Technology, Bhubaneswar, India
- School of Chemical Technology, Kalinga Institute of Industrial Technology, Bhubaneswar, India
| | - Suraj K Tripathy
- School of Biotechnology, Kalinga Institute of Industrial Technology, Bhubaneswar, India
- School of Chemical Technology, Kalinga Institute of Industrial Technology, Bhubaneswar, India
| | - Amrita Mishra
- School of Biotechnology, Kalinga Institute of Industrial Technology, Bhubaneswar, India
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Biernacka P, Adamska I, Felisiak K. The Potential of Ginkgo biloba as a Source of Biologically Active Compounds-A Review of the Recent Literature and Patents. Molecules 2023; 28:molecules28103993. [PMID: 37241734 DOI: 10.3390/molecules28103993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 04/28/2023] [Accepted: 05/05/2023] [Indexed: 05/28/2023] Open
Abstract
Ginkgo biloba is a relict tree species showing high resistance to adverse biotic and abiotic environmental factors. Its fruits and leaves have high medicinal value due to the presence of flavonoids, terpene trilactones and phenolic compounds. However, ginkgo seeds contain toxic and allergenic alkylphenols. The publication revises the latest research results (mainly from 2018-2022) regarding the chemical composition of extracts obtained from this plant and provides information on the use of extracts or their selected ingredients in medicine and food production. A very important section of the publication is the part in which the results of the review of patents concerning the use of Ginkgo biloba and its selected ingredients in food production are presented. Despite the constantly growing number of studies on its toxicity and interactions with synthetic drugs, its health-promoting properties are the reason for the interest of scientists and motivation to create new food products.
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Affiliation(s)
- Patrycja Biernacka
- Faculty of Food Science and Fisheries, Department of Food Science and Technology-West Pomeranian University of Technology, 70-310 Szczecin, Poland
| | - Iwona Adamska
- Faculty of Food Science and Fisheries, Department of Food Science and Technology-West Pomeranian University of Technology, 70-310 Szczecin, Poland
| | - Katarzyna Felisiak
- Faculty of Food Science and Fisheries, Department of Food Science and Technology-West Pomeranian University of Technology, 70-310 Szczecin, Poland
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Zhang S, Sun Y, Yao F, Li H, Yang Y, Li X, Bai Z, Hu Y, Wang P, Xu X. Ginkgo Biflavones Cause p53 Wild-Type Dependent Cell Death in a Transcription-Independent Manner of p53. JOURNAL OF NATURAL PRODUCTS 2023; 86:346-356. [PMID: 36700552 DOI: 10.1021/acs.jnatprod.2c00959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Ginkgo biloba, as a medicinal plant in both traditional and western medicine, emerged as a potential therapeutic agent for the management of a variety of diseases, but ginkgo biflavones (bilobetin, isoginkgetin, and ginkgetin) application in cancer therapy and underlying mechanisms of action remained elusive. In the present study, we identified ginkgo biflavones as potential p53 activators that could enhance p53 protein expression level by inhibiting MDM2 protein expression. At the same time, they induced cell death independent of p53 transcriptional activity. Moreover, ginkgetin was a standout among ginkgo biflavones that reduced the survival of HCT-116 cells by induction of apoptosis and G2/M phase arrest. Furthermore, ginkgo biflavones induced ROS generation significantly, which resulted in ferroptosis. Finally, we provide evidence that ginkgetin strengthened the antitumor effect of fluorouracil (5-FU) in the HCT-116 colon cancer xenograft model. To sum up, ginkgo biflavones represent a new class of p53 activator that depends on the p53 wild-type status and warrants further exploration as potential anticancer agents.
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Affiliation(s)
- Siyu Zhang
- Institute of Burns, Tongren Hospital of Wuhan University (Wuhan Third Hospital), Wuhan 430060, P. R. China
- Center for Innovation Marine Drug Screening & Evaluation, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266071, P. R. China
- Marine Drug Screening and Evaluation Platform (QNLM), School of Medicine and Pharmacy, Ocean University of China, Qingdao 266071, P. R. China
| | - Yujie Sun
- Center for Innovation Marine Drug Screening & Evaluation, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266071, P. R. China
- Marine Drug Screening and Evaluation Platform (QNLM), School of Medicine and Pharmacy, Ocean University of China, Qingdao 266071, P. R. China
- School of Medicine and Pharmacy, Ocean University of China, Qingdao 266071, Shandong, P. R. China
| | - Fengli Yao
- Center for Innovation Marine Drug Screening & Evaluation, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266071, P. R. China
- Marine Drug Screening and Evaluation Platform (QNLM), School of Medicine and Pharmacy, Ocean University of China, Qingdao 266071, P. R. China
- College of Food Science and Engineering, Ocean University of China, Qingdao 266071, P. R. China
| | - Hongju Li
- Center for Innovation Marine Drug Screening & Evaluation, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266071, P. R. China
- Marine Drug Screening and Evaluation Platform (QNLM), School of Medicine and Pharmacy, Ocean University of China, Qingdao 266071, P. R. China
- College of Food Science and Engineering, Ocean University of China, Qingdao 266071, P. R. China
| | - Yacong Yang
- Center for Innovation Marine Drug Screening & Evaluation, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266071, P. R. China
- Marine Drug Screening and Evaluation Platform (QNLM), School of Medicine and Pharmacy, Ocean University of China, Qingdao 266071, P. R. China
- School of Medicine and Pharmacy, Ocean University of China, Qingdao 266071, Shandong, P. R. China
| | - Xionghao Li
- Center for Innovation Marine Drug Screening & Evaluation, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266071, P. R. China
- Marine Drug Screening and Evaluation Platform (QNLM), School of Medicine and Pharmacy, Ocean University of China, Qingdao 266071, P. R. China
- School of Medicine and Pharmacy, Ocean University of China, Qingdao 266071, Shandong, P. R. China
| | - Zhongyue Bai
- Center for Innovation Marine Drug Screening & Evaluation, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266071, P. R. China
- Marine Drug Screening and Evaluation Platform (QNLM), School of Medicine and Pharmacy, Ocean University of China, Qingdao 266071, P. R. China
- School of Medicine and Pharmacy, Ocean University of China, Qingdao 266071, Shandong, P. R. China
| | - Yu Hu
- Center for Innovation Marine Drug Screening & Evaluation, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266071, P. R. China
- Marine Drug Screening and Evaluation Platform (QNLM), School of Medicine and Pharmacy, Ocean University of China, Qingdao 266071, P. R. China
- School of Medicine and Pharmacy, Ocean University of China, Qingdao 266071, Shandong, P. R. China
| | - Peng Wang
- Center for Innovation Marine Drug Screening & Evaluation, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266071, P. R. China
- Marine Drug Screening and Evaluation Platform (QNLM), School of Medicine and Pharmacy, Ocean University of China, Qingdao 266071, P. R. China
- College of Food Science and Engineering, Ocean University of China, Qingdao 266071, P. R. China
| | - Ximing Xu
- Center for Innovation Marine Drug Screening & Evaluation, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266071, P. R. China
- Marine Drug Screening and Evaluation Platform (QNLM), School of Medicine and Pharmacy, Ocean University of China, Qingdao 266071, P. R. China
- School of Medicine and Pharmacy, Ocean University of China, Qingdao 266071, Shandong, P. R. China
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Liu Y, Xin H, Zhang Y, Che F, Shen N, Cui Y. Leaves, seeds and exocarp of Ginkgo biloba L. (Ginkgoaceae): A Comprehensive Review of Traditional Uses, phytochemistry, pharmacology, resource utilization and toxicity. JOURNAL OF ETHNOPHARMACOLOGY 2022; 298:115645. [PMID: 35988840 DOI: 10.1016/j.jep.2022.115645] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 08/07/2022] [Accepted: 08/12/2022] [Indexed: 06/15/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Ginkgo biloba L. (Ginkgoaceae) is a treasure species with high medicinal value. The Ming Dynasty "Compendium of Materia Medica" and Qing Dynasty "Bencao Fengyuan" in China recorded this herbal medicine can reduce phlegm, clear poison, treat diarrhea and frequent urination, etc. AIM OF THE STUDY: Until now, there is no painstakingly summarized review on leaves, seeds and exocarp of G. biloba simultaneously. This review will systematically summarize and compare current knowledge of G. biloba. MATERIALS AND METHODS Ample original publications related to traditional uses, phytochemistry, pharmacology, resource utilization and toxicity of G. biloba leaves, seeds and exocarp till the end of 2021 were searched and collected by using various literature databases, including China National Knowledge Infrastructure, PubMed, Elsevier, Springer, Google Scholar and Web of Science database. RESULTS According to classical Chinese herbal books and Chinese Pharmacopoeia, relieving cough, reducing phlegm, clearing poison and relieving diarrhea are the main pharmacological effects of G. biloba. The common chemical ingredients in different parts of G. biloba are flavonoids, terpenoids, phenolic acids, polysaccharides and endotoxin, etc. Among them, flavonoids and terpenoids are the main bioactive compounds in G. biloba leaves. Phenolic acids are the main bioactive compounds in G. biloba exocarp. G. biloba seeds are rich in nutritional ingredients, such as starch, adipose, protein, etc. Modern pharmacological studies showed that the crude extracts or compounds of G. biloba leaves, seeds and exocarp can be used for treating cardiovascular and cerebrovascular diseases, Alzheimer's disease, atherosclerosis, cancer, asthma, non-alcoholic fatty liver, diabetic complications and other diseases. In daily life, G. biloba seeds were usually used as raw material or additives for commodities, healthy food, drinks, even insecticides and antibacterial agents, etc. G. biloba leaves and seeds have been mainly applied for treating cardiovascular and cerebrovascular diseases, cough and asthma in clinical. However, endotoxins and ginkgolic acids have been identified as the dominating toxic ingredients in different parts of G. biloba. Besides, flavonoids and ginkgolides also have been proved to have toxicity recently. CONCLUSIONS This review systematically sums up and compares the traditional uses, phytochemistry, pharmacology, resource utilization and toxicity research progress of G. biloba leaves, seeds and exocarp for the first time. It will provide some comprehensive reference data and suggestions for future research on this herbal medicine.
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Affiliation(s)
- Yanxia Liu
- School of Medicine, Linyi University, Linyi, 276000, Shandong, China
| | - Huawei Xin
- School of Medicine, Linyi University, Linyi, 276000, Shandong, China
| | - Yunchao Zhang
- School of Medicine, Linyi University, Linyi, 276000, Shandong, China
| | - Fengyuan Che
- Linyi People's Hospital, Linyi, 276000, Shandong, China
| | - Na Shen
- School of Medicine, Linyi University, Linyi, 276000, Shandong, China
| | - Yulei Cui
- School of Medicine, Linyi University, Linyi, 276000, Shandong, China; Linyi People's Hospital, Linyi, 276000, Shandong, China.
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Abstract
Ginkgo biloba has been cultivated in Bulgaria since the end of the 19th century. Ividual specimens can be seen in almost every park. Females of the tree are considered contaminants of the landscape because their ripe seeds have a strong odor and are not utilized. We undertook this study to clarify whether ginkgo seeds of local origin can be converted from an unwanted and unused environmental pollutant into a source of beneficial compounds. Various analytical and chromatographic methods were used to quantify the major constituents and ten biologically active compounds in methanol seed extract. The results showed that the seeds are low in proteins (5%) and fats (1%); the seeds were also rich in unsaturated fatty acids and tocopherols. About 44% of nut starch was resistant to in vitro enzymatic hydrolysis. The amount of terpene trilactones in an aqueous-methanol seed extract was significantly higher than the number of flavonoids. Ginkgotoxin and ginkgolic acid were also found. The extract demonstrated weak antimicrobial activity against thirteen microorganisms. This study revealed that seeds of locally grown Ginkgo trees can be used as a source of biologically active substances. The chemical composition show similarity to those of seeds from other geographical areas.
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do Carmo MAV, Granato D, Azevedo L. Antioxidant/pro-oxidant and antiproliferative activities of phenolic-rich foods and extracts: A cell-based point of view. ADVANCES IN FOOD AND NUTRITION RESEARCH 2021; 98:253-280. [PMID: 34507644 DOI: 10.1016/bs.afnr.2021.02.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Phenolic compounds have demonstrated several in vitro beneficial properties by acting as antioxidant and pro-oxidant agents. This chapter approaches the relationship among oxidative stress, cancer, phenolic compounds and antiproliferative activity. Moreover, it discusses in vitro techniques and their biological applications, regarding cell viability and intracellular measure of reactive oxygen assays. The in vitro methods are important tools for screening and understanding the pathways involved on antiproliferative and antioxidant/pro-oxidant effects of phenolic compounds. These findings open avenues for the development of innovative food, chemical structures, technological applications and future perspectives in this research field.
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Affiliation(s)
| | - Daniel Granato
- Department of Biological Sciences, Faculty of Science and Engineering, University of Limerick, Limerick, Ireland
| | - Luciana Azevedo
- Federal University of Alfenas, Nutrition Faculty, Alfenas, MG, Brazil.
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