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Lu G, Li Q. Complete mitochondrial genome of Syzygium samarangense reveals genomic recombination, gene transfer, and RNA editing events. Front Plant Sci 2024; 14:1301164. [PMID: 38264024 PMCID: PMC10803518 DOI: 10.3389/fpls.2023.1301164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/24/2023] [Accepted: 12/18/2023] [Indexed: 01/25/2024]
Abstract
Wax apple (Syzygium samarangense) is a commercial fruit that belongs to one of the most species-rich tree genera in the world. We report here the first complete S. samarangense mitogenome obtained using a hybrid assembly strategy. The mitogenome was a 530,242 bp circular molecule encoding 61 unique genes accounting for 7.99% of the full-length genome. Additionally, 167 simple sequence repeats, 19 tandem repeats, and 529 pairs of interspersed repeats were identified. Long read mapping and Sanger sequencing revealed the involvement of two forward repeats (35,843 bp and 22,925 bp) in mediating recombination. Thirteen homologous fragments in the chloroplast genome were identified, accounting for 1.53% of the mitogenome, and the longest fragment was 2,432 bp. An evolutionary analysis showed that S. samarangense underwent multiple genomic reorganization events and lost at least four protein-coding genes (PCGs) (rps2, rps7, rps11, and rps19). A total of 591 RNA editing sites were predicted in 37 PCGs, of which nad1-2, nad4L-2, and rps10-2 led to the gain of new start codons, while atp6-1156, ccmFC-1315 and rps10-331 created new stop codons. This study reveals the genetic features of the S. samarangense mitogenome and provides a scientific basis for further studies of traits with an epistatic basis and for germplasm identification.
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Affiliation(s)
- Guilong Lu
- Institute of Vegetables, Tibet Academy of Agricultural and Animal Husbandry Sciences, Lhasa, China
- College of Horticulture and Landscape Architecture, Henan Institute of Science and Technology, Xinxiang, China
| | - Qing Li
- Institute of Vegetables, Tibet Academy of Agricultural and Animal Husbandry Sciences, Lhasa, China
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Yao Y, Zhao M, He PB, Yu L, Li J, Qu P, Zhang C, Chen H, Tan W. First report of Colletotrichum siamense as a causal agent of anthracnose on wax apple ( Syzygium samarangense) in China. Plant Dis 2023. [PMID: 37283552 DOI: 10.1094/pdis-07-22-1579-pdn] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Wax apple (Syzygium samarangense) is an important fruit tree widely cultivated in China. Yield losses are usually serious due to different diseases among which anthracnose (Colletotrichum spp.) is one of the most damaging (He et al, 2019). This disease was found in Yunnan, China and an average incidence of 56.7% diseased leaves was recorded in21 orchards surveyed in July2021. The disease lesions on leaves were circular, angular or oval (7.2-15.6 mm), with whitish center and brown outer area surrounded by a yellow halo; irregular spots or blight areas formed later. It can also infect fruits forming pale-brown, circular and sunken spots before harvest and rot of stored fruits. Diseased leaves were sampled from orchards in Ximeng (N117.78oE39.89o) and Ninger (E101.04oN23.05o) counties of Yunnan for fungal isolation; three and five pure isolates were recovered from Ximeng (LWTJ1-LWTJ3) and Ninger (LB4-LB8) samples, respectively, by plating disinfested tissue (surface-sterilized with 2% NaClO3) on potato dextrose agar (PDA) followed by hyphal tip purification and incubation at 25oC. Two repeated tests following Koch's postulates were conducted to verify pathogenicity of the eight isolates. In each test, three healthy seedlings per isolate were sprayed with conidia suspenson (2.26×105cfu/mL) until runoff from leaves while control plants were sprayed with sterile water. The plants were kept in the dark at RH100 for 24 h in a black box and then in a growth chamber (28oC, RH>90% and lighting 12h/d). Detached fruits were inoculated with mycelial discs on the puncture-wound surface. Anthracnose symptoms developed on all seedlings and fruits inoculated with LWTJ2 or LB4 isolates, which were re-isolated from lesions of inoculated leaf/fruit, completing Koch's postulates. Control plants were healthy and symptomless. LWTJ2 and LB4 isolates were morphologically the same: the colonies on PDA were circular, pale-white, with cottony surface and readily forming orange conidium masses. The hyphae were hyaline, septate, branched mostly in near right angles. The conidia were hyaline, one-celled, smooth-walled, cylindrical with round ends, 9.8-17.5 (av.13.8) μm×4.4-6.5 (5.6) μm. The teleomorph was not observed in culture or on orchard trees. The morphological characters were consistent with those of C. siamense described by Weir et al (2012). The internal transcribed spacer region (ITS) was amplified from the two isolates by PCR and sequenced (1990) and were 545 bp in length (OL963924 & OL413460). BLAST analysis showed that both were 100% identical and they shared 99.08% identity with C. siamense WZ-365 from the ITS region (MN856443).The Tub2 (788 bp, ON637119) and Cal (768 bp, ON622249) genes (Weir et al, 2012) of LB4 were also obtained and they shared closest identity (99.45% & 100%) with those of C. siamense WZ-365 as well. Phylogenetic tree (neighbor-joining) analysis of the concatenated sequence of ITS, Tub2 and Cal genes of LB4 and those of related Colletotrichum spp. showed that LB4 clustered IN the same end-branch with C. siamense ICMP18578 (Bootstrap sup. = 98%). Thus, C. siamense was identified as the pathogen of wax apple anthracnose in Yunnan. It caused anthracnose on other crops as oranges and cacao (Azad et al, 2020). Also, C. fructicola and C. syzygicola were identified as pathogens of wax apple anthracnose in Thailand (Al-Obaidi et al, 2017). To our knowledge, this is the first report of C. siamense causing wax apple anthracnose in China.
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Affiliation(s)
- Yingyun Yao
- Yunnan Agricultural University, 12616, College of Tropic Crop Sciences, Pu'er City, Yunnan, China;
| | - Mingshuang Zhao
- Yunnan Agricultural University, 12616, College of Tropical Crop Sciences, Pu'er City, Yunnan, China;
| | - Peng-Bo He
- Yunnan Agricultural University, 12616, College of Plant Protection, Kunming, Yunnan, China;
| | - Longfeng Yu
- West Yunnan Normal University of Science and Technology, Lincang, Yunnan, China;
| | - Jingping Li
- Yunnan Agricultural University, 12616, College of Tropical Crop Sciences, Pu'er City, Yunnan, China;
| | - Peng Qu
- Yunnan Agricultural University, 12616, College of Tropical Crops, No. 3, Siting Road, Simao district, Pu'er city, Yunnan province, China, Pu'er City, Yunnan, China, 665000;
| | - Chuanli Zhang
- Yunnan Agricultural University, 12616, College of Tropic Crops Sciences, Pu'er City, Yunnan, China;
| | - Hongmei Chen
- Yunnan Agricultural University, 12616, College of Tropical Crops, Pu'er City, Yunnan, China;
| | - Wanzhong Tan
- Yunnan Agricultural University, 12616, College of Tropic Crops Sciences, Pu'er, Yunnan, China;
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Hassan NA, Abdelfattah MAO, Mandour YM, El-Shazly AM, Sobeh M, Mahmoud MF. Vasorelaxant Effects of Syzygium samarangense (Blume) Merr. and L.M.Perry Extract Are Mediated by NO/cGMP Pathway in Isolated Rat Thoracic Aorta. Pharmaceuticals (Basel) 2022; 15:1349. [PMID: 36355521 PMCID: PMC9692616 DOI: 10.3390/ph15111349] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 10/26/2022] [Accepted: 10/28/2022] [Indexed: 07/22/2023] Open
Abstract
Syzygium samarangense (Blume) Merr. and L.M.Perry is utilized widely in traditional medicine. We have reported previously a wide array of pharmacological properties of its leaf extract, among them anti-inflammatory, antioxidant, hepatoprotective, antidiabetic, antiulcer, and antitrypanosomal activities. We also annotated its chemical composition using LC-MS/MS. Here, we continue our investigations and evaluate the vasorelaxant effects of the leaf extract on aortic rings isolated from rats and explore the possible underlying mechanisms. S. samarangense extract induced a concentration dependent relaxation of the phenylephrine-precontracted aorta in the rat model. However, this effect disappeared upon removing the functional endothelium. Pretreating the aortic tissues either with propranolol or NG-nitro-L-arginine methyl ester inhibited the relaxation induced by the extract; however, atropine did not affect the extract-induced vasodilation. Meanwhile, adenylate cyclase inhibitor, MDL; specific guanylate cyclase inhibitor, ODQ; high extracellular KCl; and indomethacin as cyclooxygenase inhibitor inhibited the extract-induced vasodilation. On the other hand, incubation of S. samarangense extract with aortae sections having their intact endothelium pre-constricted using phenylephrine or KCl in media free of Ca2+ showed no effect on the constriction of the aortae vessels induced by Ca2+. Taken together, the present study suggests that S. samarangense extract dilates isolated aortic rings via endothelium-dependent nitric oxide (NO)/cGMP signaling. The observed biological effects could be attributed to its rich secondary metabolites. The specific mechanisms of the active ingredients of S. samarangense extract await further investigations.
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Affiliation(s)
- Noura A. Hassan
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Zagazig University, Zagazig 44519, Egypt
| | | | - Yasmine M. Mandour
- School of Life and Medical Sciences, University of Hertfordshire Hosted by Global Academic Foundation, New Administrative Capital, Cairo 11578, Egypt
| | - Assem M. El-Shazly
- Department of Pharmacognosy, Faculty of Pharmacy, Zagazig University, Zagazig 44519, Egypt
- Faculty of Pharmacy, El Saleheya El Gadida University, El Saleheya El Gadida 44813, Egypt
| | - Mansour Sobeh
- AgroBioSciences, Mohammed VI Polytechnic University, Lot 660-Hay Moulay Rachid, Ben-Guerir 43150, Morocco
| | - Mona F. Mahmoud
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Zagazig University, Zagazig 44519, Egypt
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Mahmoud MF, Nabil M, Abdo W, Abdelfattah MAO, El-Shazly AM, El Kharrassi Y, Sobeh M. Syzygium samarangense leaf extract mitigates indomethacin-induced gastropathy via the NF-κB signaling pathway in rats. Biomed Pharmacother 2021; 139:111675. [PMID: 33965725 DOI: 10.1016/j.biopha.2021.111675] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 04/23/2021] [Accepted: 04/26/2021] [Indexed: 12/24/2022] Open
Abstract
We previously profiled the chemical composition of wax apple, Syzygium samarangense, leaf extract using HR-LC-MS/MS and reported its antioxidant, hepatoprotective and antitrypanosomal activities. The plant is widely used in traditional medicine to cure several ailments like bronchitis, asthma, diabetes, fever, pathogenic infections, gut spasms, as well as renal diseases. However, neither the gastroprotective effects nor the underlying mechanisms were explored. Here, we investigated the gastroprotective potential of the leaf extract on indomethacin-induced gastric ulcer in rats and explored the involved mechanism(s) of action. Administration of indomethacin significantly increased the ulcer index, mucosal injury, the gastric levels of the inflammatory markers nuclear factor kabba B-p65(NF-κB p65), myeloperoxidase (MPO), interleukin-6 (IL-6), tumor necrosis factor alpha (TNF-α), lipid peroxidation product, malondialdehyde (MDA) and Caspase-3 expression. It reduced the gastric levels of the endogenous antioxidants glutathione as well peroxidase (GPx), reduced glutathione (GSH) and the gastric mucosal protective factors, mucus secretion and goblet cells. Pretreatment with the leaf extract displayed a prominent decrease in the ulcer index, inflammatory cell infiltration, inflammatory markers, MDA, protein expression of Caspase-3 and a significant increase in the gastric levels of the endogenous antioxidants, mucus content and goblet cell proliferation when compared to the indomethacin group. The individual secondary metabolites of the extract exhibited low binding energy when docked into the prostaglandin receptors EP3 and EP4. This study revealed the gastroprotective effect of S. samarangense on indomethacin-induced gastric ulcer in rats. The gastroprotective effects might be attributed to cytoprotective, antioxidant, anti-inflammatory and antiapoptotic activities with a possible potential of activating EP3 and EP4 receptors. In conclusion, S. samarangense has a promising potential in the prevention of NSAIDs-induced ulcers.
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Raj S, Vinod V, Jayakumar J, Suresh P, Kumar A, Biswas R. Antifungal activity of Syzygium samarangense leaf extracts against Candida. Lett Appl Microbiol 2021; 73:31-38. [PMID: 33735468 DOI: 10.1111/lam.13471] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 03/08/2021] [Accepted: 03/09/2021] [Indexed: 11/26/2022]
Abstract
Candida species are opportunistic human fungal pathogens that cause acute and chronic infections against which only few antifungal agents are available. Here we have elucidated the antifungal effect of Syzygium samarangense leaf extracts (SSLE). Antifungal activity of SSLE was studied against Candida albicans, C. krusei, C. parapsilosis, C. glabrata, C. auris and C. tropicalis. Following experiments were performed: minimum fungicidal concentration (MFC) determination, agar well disc diffusion assays, fungal morphology analysis using scanning electron microscope (SEM), ex vivo fungal survival assays on porcine tongue and skin and in vivo fungal survival assays using Drosophila melanogaster fly model. Results demonstrated MFC of SSLE ranges between 100 and 125 mg ml-1 . SEM images showed cell wall degradation of C. albicans when treated with SSLE. Around 75% decrease in C. albicans viability was observed when infected porcine tongue and skin were treated using SSLE. The C. albicans infected D. melanogaster when fed with SSLE showed significant decrease (around 80%) of fungal count than the infected control. Furthermore, agar plate disc diffusion assays demonstrated that the antifungal activity of SSLE could be due to chalcone, which is one of the active constituents in SSLE. Our study demonstrated that SSLE could be used for the topical treatment of Candida infections.
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Affiliation(s)
- S Raj
- Centre for Nanosciences and Molecular Medicine, Amrita Vishwa Vidyapeetham, Kochi, Kerala, India
| | - V Vinod
- Centre for Nanosciences and Molecular Medicine, Amrita Vishwa Vidyapeetham, Kochi, Kerala, India
| | - J Jayakumar
- Centre for Nanosciences and Molecular Medicine, Amrita Vishwa Vidyapeetham, Kochi, Kerala, India
| | - P Suresh
- Centre for Nanosciences and Molecular Medicine, Amrita Vishwa Vidyapeetham, Kochi, Kerala, India
| | - A Kumar
- Department of Microbiology, Amrita Institute of Medical Sciences, Amrita Vishwa Vidyapeetham, Kochi, Kerala, India
| | - R Biswas
- Centre for Nanosciences and Molecular Medicine, Amrita Vishwa Vidyapeetham, Kochi, Kerala, India
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Abdelfattah MAO, Ibrahim MA, Abdullahi HL, Aminu R, Saad SB, Krstin S, Wink M, Sobeh M. Eugenia uniflora and Syzygium samarangense extracts exhibit anti-trypanosomal activity: Evidence from in-silico molecular modelling, in vitro, and in vivo studies. Biomed Pharmacother 2021; 138:111508. [PMID: 33756157 DOI: 10.1016/j.biopha.2021.111508] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Revised: 03/03/2021] [Accepted: 03/11/2021] [Indexed: 12/29/2022] Open
Abstract
The parasite Trypanosoma brucei is the main cause of the sleeping sickness threatening millions of populations in many African countries. The parasitic infection is currently managed by some synthetic medications, most of them suffer limited activity spectrum and/or serious adverse effects. Some studies have pointed out the promising therapeutic potential of the plant extracts rich in polyphenols to curb down parasitic infections caused by T. brucei and other trypanosomes. In this work, the main components dominating Eugenia uniflora and Syzygium samarangense plant extracts were virtually screened, through docking, as inhibitors of seven T. brucei enzymes validated as potential drug targets. The in vitro and in vivo anti-T. brucei activities of the extracts in two treatment doses were evaluated. Moreover, the extract effects on the packed cell volume level, liver, and kidney functions were assessed. Five compounds showed strong docking and minimal binding energy to five target enzymes simultaneously and three other compounds were able to bind strongly to at least four of the target enzymes. These compounds represent lead hits to develop novel trypanocidal agents of natural origin. Both extracts showed moderate in vitro anti-trypanosomal activity. Infected animal groups treated over 5 days with the studied extracts showed an appreciable in vivo anti-trypanosomal activity and ameliorated in a dose dependent manner the anaemia, liver, and kidney damages induced by the infection. In conclusion, Eugenia uniflora and Syzygium samarangense could serve as appealing sources to treat trypanosomes infections.
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Affiliation(s)
| | | | | | - Raphael Aminu
- Department of Biochemistry, Ahmadu Bello University, Zaria, Nigeria
| | - Saad Bello Saad
- Department of Biochemistry, Ahmadu Bello University, Zaria, Nigeria
| | - Sonja Krstin
- Institute of Pharmacy and Molecular Biotechnology, Heidelberg University, Im Neuenheimer Feld 364, 69120 Heidelberg, Germany
| | - Michael Wink
- Institute of Pharmacy and Molecular Biotechnology, Heidelberg University, Im Neuenheimer Feld 364, 69120 Heidelberg, Germany
| | - Mansour Sobeh
- AgroBiosciences Research Division, Mohammed VI Polytechnic University, Lot 660-Hay Moulay Rachid, 43150 Ben-Guerir, Morocco.
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Abstract
Nine resorcinol derivatives including two new ones, 5-[(8Z,11Z,14Z)-nonadeca-8,11,14-trienyl] resorcinol (1) and 5-[(8Z,11Z,14E)-heptadeca-8,11,14-trienyl] resorcinol (2), were isolated from the leaves of Syzygium samarangense. The new structures were elucidated by means of extensive spectroscopic techniques including interpretation of 1D and 2D NMR spectra. Among them, compounds 3, 4, 6 and 7 exhibited significant α-glucosidase inhibitory activities with IC50 of 3.16, 3.16, 2.34 and 0.99 µM, respectively. This finding provides evidence that resorcinol derivatives with long aliphatic chain function as new promising antidiabetic alternatives.
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Affiliation(s)
- Yi-Kao Hu
- College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming, P. R. China
| | - Li Wang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, P. R. China
| | - Ji-Hua Wang
- College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming, P. R. China
| | - Meng-Jia Li
- College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming, P. R. China
| | - Feng Li
- College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming, P. R. China
| | - Jing Yang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, P. R. China
| | - Yong Zhao
- College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming, P. R. China
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Folorunso OS, Adeola S, Giwa Ajeniya AO. <i> Syzygium samarangense</i> Volatile Oil Inhibited Bacteria Growth and Extracellular Protease of <i>Salmonella typhimurium</i>. Pak J Biol Sci 2020; 23:628-637. [PMID: 32363819 DOI: 10.3923/pjbs.2020.628.637] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND AND OBJECTIVE Medicinal plants are fast becoming essential pharmaceuticals for disease and infection management. The vast antimicrobial properties of these plants reside in the inhibitory properties of their endogenous secondary metabolites. Therefore, this study aimed to assess if the volatile oil of Syzygium samarangense inhibits enteric bacteria growth and its effect against the caseinolytic activity of the extracellular protease of Salmonella typhimurium. MATERIALS AND METHODS The volatile oil was extracted by hydrodistillation, while the antimicrobial assay was assessed with the microdilution method. The extracellular protease was partially purified by salting out, followed by size-exclusion chromatography. The mode of inhibition of this enzyme was deduced from the enzyme-substrate kinetics using a line-weaver burke plot. RESULTS The antimicrobial properties of the oil were reported against ten enteric bacteria. Proteus vulgaris has the highest IC50 value of 0.75±0.004% v/v, while S. typhimurium, the most sensitive bacterium, showed the lowest IC50 value of 0.17±0.005% v/v. The extracellular protease of S. typhimurium was partially purified to achieve 3.73 purification fold and 314.2 μmol min-1 mg-1 protein. The optimal caseinolytic activity of this enzyme was found at pH 7.5 and 40 °C. The protease showed significantly higher activity in the presence of Zn2+ (9.3±0.33 U min-1) as compared to the control (7.0±0.58 U min-1) (p<0.05), however, K+, Ca2+, Co2+, Ba2+, Pb2+ and Hg2+ considerably reduced the enzyme activity. The activity of this enzyme was competitively inhibited by the volatile oil as an inhibitor. CONCLUSION The volatile oil of S. samarangense inhibited a wide range of enteric bacteria and, therefore proposed as a potential antimicrobial agent. Inhibiting the extracellular protease of S. typhimurium may be one of its modes of action against these pathogens.
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Sobeh M, Petruk G, Osman S, El Raey MA, Imbimbo P, Monti DM, Wink M. Isolation of Myricitrin and 3,5-di-O-Methyl Gossypetin from Syzygium samarangense and Evaluation of their Involvement in Protecting Keratinocytes against Oxidative Stress via Activation of the Nrf-2 Pathway. Molecules 2019; 24:molecules24091839. [PMID: 31086086 PMCID: PMC6539899 DOI: 10.3390/molecules24091839] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 05/08/2019] [Accepted: 05/10/2019] [Indexed: 01/31/2023] Open
Abstract
The wax apple (Syzygium samarangense) is traditionally employed as an antibacterial and immunostimulant drug in traditional medicine. This plant is rich in different flavonoids and tannins. In this study, we isolated two compounds from S. samarangense leaves: myricitrin and 3,5-di-O-methyl gossypetin. Then, we investigated the mechanisms of action of the two compounds against oxidative stress (induced by sodium arsenite) and inflammation (induced by UV light) on human keratinocytes. We could clearly demonstrate that the pre-treatment of cells with both compounds was able to mitigate the negative effects induced by oxidative stress, as no alteration in reactive oxygen species (ROS) production, glutathione (GSH) level, or protein oxidation was observed. Additionally, both compounds were able to modulate mitogen-activated protein kinase (MAPK) signaling pathways to counteract oxidative stress activation. Finally, we showed that 3,5-di-O-methyl gossypetin exerted its antioxidant activity through the nuclear transcription factor-2 (Nrf-2) pathway, stimulating the expression of antioxidant proteins, such as HO-1 and Mn-SOD-3.
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Affiliation(s)
- Mansour Sobeh
- Institute of Pharmacy and Molecular Biotechnology, Heidelberg University, 69120 Heidelberg, Germany.
- AgroBioSciences Research Division, Mohammed VI Polytechnic University, Lot 660⁻Hay Moulay Rachid, 43150 Ben-Guerir, Morocco.
| | - Ganna Petruk
- Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario Monte Sant'Angelo, via Cinthia 4, 80126 Naples, Italy.
| | - Samir Osman
- Department of Pharmacognosy, Faculty of Pharmacy, October 6 University, Giza 12585, Egypt.
| | - Mohamed A El Raey
- Department of Phytochemistry and Plant Systematics, National Research Center, Dokki, Cairo 12622, Egypt.
| | - Paola Imbimbo
- Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario Monte Sant'Angelo, via Cinthia 4, 80126 Naples, Italy.
| | - Daria Maria Monti
- Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario Monte Sant'Angelo, via Cinthia 4, 80126 Naples, Italy.
| | - Michael Wink
- Institute of Pharmacy and Molecular Biotechnology, Heidelberg University, 69120 Heidelberg, Germany.
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Yang J, Su JC, Lei XP, Huang XJ, Zhang DM, Ye WC, Wang Y. Acylphloroglucinol derivatives from the leaves of Syzygium samarangense and their cytotoxic activities. Fitoterapia 2018; 129:1-6. [PMID: 29879460 DOI: 10.1016/j.fitote.2018.06.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Revised: 05/29/2018] [Accepted: 06/03/2018] [Indexed: 01/29/2023]
Abstract
Samarones A-D (1-4), four new acylphloroglucinol derivatives bearing a C17 alkyl side chain, along with five known analogues (5-9), were isolated from the leaves of Syzygium samarangense. Their structures were characterized on the basis of extensive spectroscopic methods including HR-ESI-MS/MS analysis. The cytotoxic activities of compounds 1-3 and 5-9 against HepG2 and MDA-MB-231 cells were also evaluated.
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Affiliation(s)
- Jiao Yang
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy, Jinan University, Guangzhou 510632, People's Republic of China.; Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM & New Drugs Research, Jinan University, Guangzhou 510632, People's Republic of China
| | - Jun-Cheng Su
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy, Jinan University, Guangzhou 510632, People's Republic of China.; Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM & New Drugs Research, Jinan University, Guangzhou 510632, People's Republic of China
| | - Xue-Ping Lei
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM & New Drugs Research, Jinan University, Guangzhou 510632, People's Republic of China
| | - Xiao-Jun Huang
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy, Jinan University, Guangzhou 510632, People's Republic of China.; Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM & New Drugs Research, Jinan University, Guangzhou 510632, People's Republic of China
| | - Dong-Mei Zhang
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM & New Drugs Research, Jinan University, Guangzhou 510632, People's Republic of China
| | - Wen-Cai Ye
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy, Jinan University, Guangzhou 510632, People's Republic of China.; Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM & New Drugs Research, Jinan University, Guangzhou 510632, People's Republic of China..
| | - Ying Wang
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy, Jinan University, Guangzhou 510632, People's Republic of China.; Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM & New Drugs Research, Jinan University, Guangzhou 510632, People's Republic of China..
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Sobeh M, Youssef FS, Esmat A, Petruk G, El-Khatib AH, Monti DM, Ashour ML, Wink M. High resolution UPLC-MS/MS profiling of polyphenolics in the methanol extract of Syzygium samarangense leaves and its hepatoprotective activity in rats with CCl 4-induced hepatic damage. Food Chem Toxicol 2018; 113:145-153. [PMID: 29374594 DOI: 10.1016/j.fct.2018.01.031] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Revised: 12/20/2017] [Accepted: 01/20/2018] [Indexed: 10/18/2022]
Abstract
Oxidative stress plays a crucial role in the development of several liver diseases. Many natural polyphenols can attenuate oxidative stress and liver injury. In this study, a phytochemical profiling of a methanol extract from leaves of Syzygium samarangense revealed 92 compounds belonging to flavonoids, phenolic acids, condensed tannins, and ellagitannins. The S. samarangense extract exhibited a noticeable antioxidant activity with an EC50 of 5.80 μg/mL measured by DPPH scavenging capacity assay, 2632 Trolox equivalents, 10 mM Fe2+ equivalents/mg of samples by TEAC and FRAP assays, respectively. The total phenolic content was 419 mg gallic acid equivalent GAE/g extract. In a cell-based model (HaCaT cells), the extract completely inhibited ROS production induced by UVA, and prevented GSH-depletion and p38 phosphorylation. In addition, the extract exhibited a substantial antioxidant and hepatoprotective activities in CCl4-treated rats, with an increase in GSH (reduced glutathione) and SOD (superoxide dismutase) activities by 84.75 and 26.27%, respectively, and a decrease of 19.08, 63.05, 52.21, 37.00, 13.26, and 15.15% in MDA, ALT, AST, TB (total bilirubin), TC (total cholesterol), and TG (total glycerides), respectively. These results were confirmed by histopathological analyses. We believe that Syzygium samarangense is a good candidate for further evaluation as an antioxidant and liver protecting drug.
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Affiliation(s)
- Mansour Sobeh
- Institute of Pharmacy and Molecular Biotechnology, Heidelberg University, 69120 Heidelberg, Germany.
| | - Fadia S Youssef
- Department of Pharmacognosy, Faculty of Pharmacy, Ain Shams University Abbassia, 11566 Cairo, Egypt
| | - Ahmed Esmat
- Department of Pharmacology, Faculty of Medicine, King Abdulaziz University, 21589 Jeddah, Saudi Arabia; Department of Pharmacology and Toxicology, Faculty of Pharmacy, Ain Shams University, 11566 Cairo, Egypt
| | - Ganna Petruk
- Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario Monte Sant'Angelo, Via Cinthia 4, 80126 Naples, Italy
| | - Ahmed H El-Khatib
- Department of Chemistry, Humboldt-Universität zu Berlin, Berlin, Germany; Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Ain Shams University, Cairo 11566, Egypt
| | - Daria Maria Monti
- Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario Monte Sant'Angelo, Via Cinthia 4, 80126 Naples, Italy
| | - Mohamed L Ashour
- Department of Pharmacognosy, Faculty of Pharmacy, Ain Shams University Abbassia, 11566 Cairo, Egypt
| | - Michael Wink
- Institute of Pharmacy and Molecular Biotechnology, Heidelberg University, 69120 Heidelberg, Germany.
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Zhang YJ, Zhou T, Wang F, Zhou Y, Li Y, Zhang JJ, Zheng J, Xu DP, Li HB. The Effects of Syzygium samarangense, Passiflora edulis and Solanum muricatum on Alcohol-Induced Liver Injury. Int J Mol Sci 2016; 17:ijms17101616. [PMID: 27681723 PMCID: PMC5085649 DOI: 10.3390/ijms17101616] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Revised: 09/15/2016] [Accepted: 09/19/2016] [Indexed: 12/20/2022] Open
Abstract
Previous studies have shown that fruits have different effects on alcohol metabolism and alcohol-induced liver injury. The present work selected three fruits and aimed at studying the effects of Syzygium samarangense, Passiflora edulis and Solanum muricatum on alcohol-induced liver injury in mice. The animals were treated daily with alcohol and fruit juices for fifteen days. Chronic treatment with alcohol increased the levels of aspartate transaminase (AST), alanine transaminase (ALT), total bilirubin (TBIL), triglyceride (TG), malondialdehyde (MDA), and decreased total protein (TP). Histopathological evaluation also showed that ethanol induced extensive fat droplets in hepatocyte cytoplasm. Syzygium samarangense and Passiflora edulis normalized various biochemical parameters. Solanum muricatum increased the level of ALT and induced infiltration of inflammatory cells in the liver. These results strongly suggest that treatment with Syzygium samarangense and Passiflora edulis could protect liver from the injury of alcohol, while Solanum muricatum could aggravate the damage.
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Affiliation(s)
- Yu-Jie Zhang
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China.
| | - Tong Zhou
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China.
| | - Fang Wang
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China.
| | - Yue Zhou
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China.
| | - Ya Li
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China.
| | - Jiao-Jiao Zhang
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China.
| | - Jie Zheng
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China.
| | - Dong-Ping Xu
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China.
| | - Hua-Bin Li
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China.
- South China Sea Bioresource Exploitation and Utilization Collaborative Innovation Center, Sun Yat-sen University, Guangzhou 510006, China.
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Shahreen S, Banik J, Hafiz A, Rahman S, Zaman AT, Shoyeb MA, Chowdhury MH, Rahmatullah M. Antihyperglycemic activities of leaves of three edible fruit plants (Averrhoa carambola, Ficus hispida and Syzygium samarangense) of Bangladesh. Afr J Tradit Complement Altern Med 2011; 9:287-291. [PMID: 23983348 PMCID: PMC3746627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Averrhoa carambola L. (Oxalidaceae), Ficus hispida L.f. (Moraceae), and Syzygium samarangense (Blume) Merr. & L.M. Perry (Myrtaceae) are three common plants in Bangladesh, the fruits of which are edible. The leaves and fruits of A. carambola and F. hispida are used by folk medicinal practitioners for treatment of diabetes, while the leaves of S. samarangense are used for treatment of cold, itches, and waist pain. Since scientific studies are absent on the antihyperglycemic effects of the leaves of the three plants, it was the objective of the present study to evaluate the antihyperglycemic potential of methanolic extract of leaves of the plants in oral glucose tolerance tests carried out with glucose-loaded mice. The extracts at different doses were administered one hour prior to glucose administration and blood glucose level was measured after two hours of glucose administration (p.o.) using glucose oxidase method. Significant oral hypoglycemic activity was found with the extracts of leaves of all three plants tested. The fall in serum glucose levels were dose-dependent for every individual plant, being highest at the highest dose tested of 400 mg extract per kg body weight. At this dose, the extracts of A. carambola, F. hispida, and S. samarangense caused, respectively, 34.1, 22.7, and 59.3% reductions in serum glucose levels when compared to control animals. The standard antihyperglycemic drug, glibenclamide, caused a 57.3% reduction in serum glucose levels versus control. Among the three plants evaluated, the methanolic extract of leaves of S. samarangense proved to be the most potent in demonstrating antihyperglycemic effects. The result validates the folk medicinal uses of A. carambola and F. hispida in the treatment of diabetes, and indicates that the leaves of S. samarangense can also possibly be used for amelioration of diabetes-induced hyperglycemia.
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Affiliation(s)
- Shejuty Shahreen
- Department of Biotechnology and Genetic Engineering, University of Development Alternative, Dhanmondi, Dhaka-1205, Bangladesh
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