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Öğe Bioactive compounds in seaweeds: An overview of their biological properties and safety(PERGAMON-ELSEVIER SCIENCE LTD, 2020) Rengasamy, Kannan R. R.; Mahomoodally, Mohamad Fawzi; Aumeeruddy, Muhammad Zakariyyah; Zengin, Gökhan; Xiao, Jianbo; Kim, Doo HwanSeaweeds are among the significant currently exploited marine plant resources which are gaining full applications in culinary, cosmetic, pharmaceutical, and biotechnological processes. Much attention has been devoted to seaweeds based on their proven health benefits and is considered as a rich source of structurally different bioactive metabolites for the discovery of novel functional food-based pharmacophores/drugs. Nonetheless, there is still a dearth of updated compilation and analysis of the in-depth pharmacological activities of these compounds. This review, therefore, aims to provide a piece of up-to-date detailed information on the major compounds isolated from various seaweed species together with their in-vitro and in-vivo biological properties. These compounds were found to possess broad pharmacological properties and inhibitory enzyme activities against critical enzymes involved in the aetiology of noncommunicable diseases. However, their toxicity, clinical efficacy, mechanisms of action, and interaction with conventional foods, are still less explored and require more attention in future studies.Öğe Biological, phytochemical, and physico-chemical properties of two commercial Nigella sativa seed oils: A comparative analysis(ISTANBUL UNIV, FAC PHARMACY, 2018) Aumeeruddy, Muhammad Zakariyyah; Aumeeruddy-Elalfi, Zaahira; Neetoo, Hudaa; Zengin, Gökhan; Fibrich, Bianca; Rademan, Sunelle; van Staden, Analike BlomThis study was designed to evaluate and correlate the biological, phytochemical, and physicochemical properties of two NSS (Nigella sativa seed) oils (N1 and N2). The biological activity was evaluated in terms of antibacterial, antioxidant (nitric oxide scavenging), antielastase, antityrosinase, antimelanogenic, and anticancer activity. Physicochemical properties including colour, total soluble solids (TSS), and density were also investigated. N2 exhibited higher antibacterial, NO scavenging, extracellular antimelanogenic, and anticancer activity against the HeLa cell line compared to N1, which showed higher antityrosinase activity. TPC (total phenolic content) and TFC (total flavonoid content) of N1 were significantly higher than N2 while TTC (total tannin content) was higher in N2. In fact, TTC was strongly correlated (R=1.000) with the antioxidant, extracellular antimelanogenic, and HeLa cell inhibitory activity. To conclude, NSS oil may be considered as a complementary and alternative therapy in the management of infectious and chronic diseases but warrants further in vivo pharmacological validation and toxicological analysis.Öğe Chemical profile, antioxidant, and enzyme inhibitory properties of two Scutellaria species: S-orientalis L. and S-salviifolia Benth(WILEY, 2019) Zengin, Gökhan; Llorent-Martinez, Eulogio J.; Molina-Garcia, Lucia; Fernandez-de Cordova, Maria Luisa; Aktümsek, Abdurrahman; Uysal, Şengül; Rengasamy, Kannan R. R.; Aumeeruddy, Muhammad Zakariyyah; Bahadori, Mir Babak; Mahomoodally, Mohamad FawziObjectives This study investigates into the biological effects of solvent extracts (ethyl acetate, methanol, and water) of Scutellaria orientalis L. and Scutellaria salviifolia Benth. based on its enzyme inhibitory activity and antioxidant ability together with the screening of bioactive compounds. Methods Total and individual bioactive components were determined using spectrophotometric and HPLC-ESI-MS methods. Six antioxidant assays were conducted and enzyme inhibition was tested against key enzymes linked to the pathology of common chronic disorders. Key findings Results revealed that the aqueous extracts of both plants exerted better 2,2 '-azino-bis(3-ethylbenzothiazoline)-6-sulfonic acid scavenging, reducing power, metal chelating, and alpha-glucosidase inhibitory activities. The methanol extracts showed highest tyrosinase inhibition and antioxidant activity in phosphomolybdenum assay while the less polar ethyl acetate extracts showed better acetylcholinesterase, butyrylcholinesterase, and alpha-amylase inhibition. Phytochemical evaluation by HPLC-ESI-MS revealed the presence of high amounts of flavones. Conclusions Scutellaria orientalis and S. salviifolia are important sources of bioactive agents that warrants further studies.Öğe HPLC-MS/MS chemical characterization and biological properties of Origanum onites extracts: a recent insight(TAYLOR & FRANCIS LTD, 2019) Mahomoodally, Mohamad Fawzi; Zengin, Gökhan; Aladağ, Mustafa Onur; Özparlak, Haluk; Diuzheva, Alina; Jeko, Jozsef; Cziaky, Zoltan; Aumeeruddy, Muhammad ZakariyyahThis study investigated into the phytochemical profile and biological properties of extracts (methanol and aqueous) of Origanum onites based on the antioxidant, enzyme inhibitory, and antibacterial activities. The aqueous extract exhibited higher antioxidant activities in the 1,1-diphenyl-2-picrylhydrazyl (DPPH), 2,2 '-azino-bis(3-ethylbenzothiazoline)-6-sulfonic acid (ABTS), ferric reducing antioxidant power, cupric reducing antioxidant capacity, phosphomolybdenum, and metal chelating assays, compared to the methanol extract. In contrast, the methanol extract was the most effective inhibitor of acetylcholinesterase, butyrylcholinesterase, tyrosinase, alpha-amylase, and alpha-glucosidase. The methanol extract also showed higher antibacterial activity with highest inhibition against Escherichia coli (MIC = 6.25 mg/mL). The total phenolic content was higher in the aqueous extract while the methanol extract possessed higher total flavonoid content. A total of 28 and 18 compounds (belonging to polyphenols, flavonoids, terpenoids, and ester classes) were identified from the methanol and water extracts, respectively. These findings suggest that O. onites could be helpful in the management of oxidative stress-associated diseases including diabetes and neurodegenerative complications.Öğe Metabolomics profiling, bio-pharmaceutical properties of Hypericum lanuginosum extracts by in vitro and in silico approaches(ELSEVIER SCIENCE BV, 2019) Mahomoodally, Mohamad Fawzi; Zengin, Gökhan; Zheleva-Dimitrova, Dimitrina; Mollica, Adriano; Stefanucci, Azzurra; Sinan, Kouadio Ibrahime; Aumeeruddy, Muhammad ZakariyyahHypericum species are important as a source of natural-bioactive compounds in the Turkish folk medicine. Among them, Hypericum lanuginosum has not been explored so far for its biological properties. The current study aimed to determine the antioxidant activity, enzyme inhibitory potential, and phenolic content (spectrophotometric and liquid chromatography/high resolution mass spectrometry (LC-HRMS) analysis) of different solvent extracts (ethyl acetate, methanol, and aqueous) of H. lanuginosum aerial parts. Twenty one phenolic compounds including phenolic acids, acylquinic acids, flavonoids and bioflavonoids were identified by LC-HRMS profiles. Quinic acid was the dominant compound in all H. lanuginosum extracts. The highest total phenolic (168.56 mg gallic acid equivalent (GAE)) and flavonoid (53.22 mg rutin equivalent (RE)) contents were observed in the aqueous extract. Also, the aqueous extract was the best antioxidant, showing the highest 1,1-diphenyl-2-picrylhydrazyl (DPPH) and 2,2'-azino-bis(3-ethylbenzothiazoline)-6-sulfonic acid (ABTS) scavenging, ferric reducing antioxidant power (FRAP), cupric reducing antioxidant capacity (CUPRAC), and activity in the phosphomolybdenum assay. The methanol extract exhibited the strongest metal chelating and inhibitory effect on alpha-amylase and tyrosinase. In contrast, the most efficient inhibitor of cholinesterases and alpha-glucosidase was the ethyl acetate extract. Docking showed that the selected compounds are all possible inhibitor candidates of tyrosinase. To conclude, each solvent extract of H. lanuginosum varied in its chemical and biological profile but overall, possess a good source of many natural agents which can be used to manage ailments inked with oxidative stress.Öğe Multidirectional insights on Chrysophyllum perpulchrum leaves and stem bark extracts: HPLC-ESI-MSn profiles, antioxidant, enzyme inhibitory, antimicrobial and cytotoxic properties(ELSEVIER SCIENCE BV, 2019) Baloğlu, Mehmet Cengiz; Llorent-Martinez, Eulogio J.; Aumeeruddy, Muhammad Zakariyyah; Mahomoodally, Mohamad Fawzi; Altunoğlu, Yasemin Çelik; Ustaoğlu, Buket; Öçal, Mustafa; Gürel, Songül; Bene, Kouadio; Sinan, Kouadio Ibrahime; Zengin, GökhanCluysophyllum perpulchrum Mildbr. ex Hutch. & Dalziel has been reported to possess several therapeutic properties in African traditional medicine. However, its pharmacological properties have not been fully studied. Herein, we focused on the evaluation of the antioxidant, enzyme inhibitory, antimicrobial and cytotoxic effects of three solvent extracts (ethyl acetate, methanol, and water) of the stem bark and leaves. Polyphenolic components of the extracts were also identified by high-performance liquid chromatography with electrospray ionization mass spectrometric detection (HPLC-ESI-MSn). The methanolic stem bark extract possess the highest DPPH (2,2-diphenyl-1-picrylhydrazyl) scavenging, ferric and molybdenum (VI) reducing, and the highest inhibitory effect against acetylcholinesterase and butyrylcholinesterase. The aqueous stem bark extract displayed the highest ABTS (2,2'-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid)) scavenging and cupric reducing power. In contrast, the leaf ethyl acetate extract was the most effective metal chelator and a-amylase inhibitor while the leaf methanolic extract exhibited the highest tyrosinase and alpha-glucosidase inhibition. The highest total phenolic content (131.58 mg GAE/g extract) was recorded from the methanolic stem bark extract while the leaf methanolic extract was the richest in total flavonoid content (30.43 mg RE/g extract). Flavan-3-ols were main group in the methanol extracts. The minimum inhibitiory concentration values for the methanolic stem bark extract against Gram positive and negative bacteria strains ranged between 62.5-125 mu g/ml. Bark extracts of C. petpulchrtun were very effective against Salmonella kentucky, Proteus vulgaris and Staphylococcus aureus at 62.5 mu g/ml. In addition, cytotoxic activity of stem bark samples was evident at lower concentration than those of leaf extracts. Stem bark extracts displayed the highest prevention against to HeLa cell line (IC50 = 264 mu g/mL after 48 h). In light of the above, C. perpulcluum might provide health benefits against oxidative stress and the associated chronic diseases. Nonetheless, the detailed mechanism of action is yet to be further investigated.Öğe New insights into the chemical profiling, cytotoxicity and bioactivity of four Bunion species(ELSEVIER, 2019) Zengin, Gökhan; Paksoy, Mehmet Yavuz; Aumeeruddy, Muhammad Zakariyyah; Glamocilja, Jasmina; Sokovic, Marina; Diuzheva, Alina; Jeko, Jozsef; Cziáky, Zoltán; Rodrigues, Maria João; Custodio, Luisa; Mahomoodally, Mohamad FawziBunium species have been reported to be used both as food and in traditional medicines. The scientific community has attempted to probe into the pharmacological and chemical profiles of this genus. Nonetheless, many species have not been investigated fully to date. In this study, we determined the phenolic components, antimicrobial, antioxidant, and enzyme inhibitory activities of aerial parts of four Bunium species (B. sayai, B. pinnatifolium, B. brachyactis and B. macrocatpum). Results showed that B. microcarpum and B. pinnatifolium were strong antioxidants as evidenced in the DPPH, ABTS, CUPRAC, and FRAP assays. B. brachyactis was the most effective metal chelator, and displayed high enzyme inhibition against cholinesterase, tyrosinase, amylase, glucosidase, and lipase. The four species showed varied antimicrobial activity against each microorganism. Overall, they showed high activity against P. mirabilis and E. call (MIC and MBC < 1 mg(-1)). B. brachyactis was more effective against Aspergillus versicolor compared to the standard drug ketoconazole. B. brachyactis was also more effective than both ketoconazole and bifonazole against Trichoderma viride. B. sayai was more effective than ketoconazole in inhibiting A. fumigates. B. sayai was most non-toxic to HEK 293 (cellular viability = 117%) and HepG2 (cellular viability = 104%). The highest level of TPC was observed in B. pinnatifolium (35.94 mg GAE g(-1)) while B. microcarpum possessed the highest TFC (39.21 mg RE g(-1)). Seventy four compounds were detected in B. microcarpum, 70 in B. brachyactis, 66 in B. sayai, and 51 in B. pinnatifolium. Quinic acid, chlorogenic acid, pantothenic acid, esculin, isoquercitrin, rutin, apigenin, and scopoletin were present in all the four species. This study showed that the four Bunium species are good sources of biologically active compounds with pharmaceutical and nutraceutical potential.Öğe New pharmacological targets of three Asphodeline species using in vitro and ex vivo models of inflammation and oxidative stress(TAYLOR & FRANCIS LTD, 2019) Zengin, Gökhan; Locatelli, Marcello; Ferrante, Claudio; Menghini, Luigi; Orlando, Giustino; Brunetti, Luigi; Recinella, Lucia; Chiavaroli, Annalisa; Leone, Sheila; Leporini, Lidia; Aumeeruddy, Muhammad Zakariyyah; Mahomoodally, Mohamad FawziThis study explored the efficacy of the methanolic extract of three Asphodeline species (A. damascena subsp. rugosa, A. tenuior subsp. tenuiflora var. tenuiflora, and A. cilicica) to protect against hydrogen peroxide (H2O2)-induced lactate dehydrogenase (LDH) activity in HCT116 cells, and also any protective effects against lipopolysaccharides (LPS)-induced nitrite levels, prostaglandin E2 (PGE2) and 8-iso-prostaglandin F2 alpha (8-iso-PGF2 alpha) levels, 5HIAA/5-HT ratio, tumor necrosis factor (TNF)-alpha and interleukin (IL)-6 gene expression in rat colon specimens. Interestingly, A. tenuior extract was most effective in improving the tested biomarkers, by reducing LDH activity and nitrite level. On the other hand, A. damascena was the only species able to blunt LPS-induced TNF-alpha gene expression in rat colon specimens. The present findings highlighted the protective effects of Asphodeline extracts via in vitro and ex vivo models of inflammation and oxidative stress, adding new insights to the pharmacological actions of these medicinal plant species.Öğe Paeonia arietina and Paeonia kesrounansis bioactive constituents: NMR, LC-DAD-MS fingerprinting and in vitro assays(ELSEVIER SCIENCE BV, 2019) Sut, Stefania; Zengin, Gökhan; Dall'Acqua, Stefano; Gazdova, Marketa; Smejkal, Karel; Bulut, Gizem; Doğan, Ahmet; Haznedaroğlu, Mehmet Zeki; Aumeeruddy, Muhammad Zakariyyah; Maggi, Filippo; Mahomoodally, Mohamad FawziPaeonia species have been valued for their ethnomedicinal uses in various countries and received much interest among the scientific community for their therapeutic properties, including anti-microbial, anti-inflammatory, anti-cancer, nephroprotective and hepatoprotective effects. The multiple phytother-apeutical applications of Paeonia species inspired us to establish the phytochemical fingerprint and to evaluate the biological properties of ethyl acetate, methanol, and aqueous extracts from the roots and aerial parts of two Paeonia species (P. arietina G. Anderson and P. kesrounansis Thiebaut). Phytoconstituents of P. arietina and P. kesrounansis extracts were analyzed using 1D and 2D NMR and LC-DAD-ESI-MS. The total content of phenolics (TPC) and flavonoids (TFC) in the extracts was also evaluated. The antioxidant activity was profiled using DPPH, ABTS, CUPRAC, FRAP, phosphomolybdenum, and metal chelation assays. Enzyme inhibitory properties were evaluated against acetylcholinesterase (AChE), butyrylcholinesterase (BChE), tyrosinase, alpha-amylase, and alpha-glucosidase. Phytochemical analysis of P. arietina and P. kesrounansis extracts showed the presence of galloyl esters of sugars, galloyl monoterpenes, and glycosylated flavonoids. The three solvent extracts presented different behavior in the bioassays. The highest antioxidant activity, tyrosinase and AChE inhibition were observed for the methanolic extract of the aerial parts of P. kesrounansis. In addition, the ethyl acetate extracts of the aerial parts of both plants were the most effective inhibitors of alpha-amylase. The highest BChE inhibition was observed for root methanolic extract of P. kesrounansis while the root ethyl acetate extract of P. arietina exerted the strongest inhibition of alpha-glucosidase. Methanol extract of P. kesrounansis aerial parts presented the highest TPC, while TFC was greatest in the corresponding extract of P. arietina. Our findings can be considered as a starting point for future studies to further validate the effectiveness and safety profiles of these plants in folk medicine. (C) 2018 Elsevier B.V. All rights reserved.Öğe Parentucellia latifolia subsp. latifolia: A potential source for loganin iridoids by HPLC-ESI-MSn technique(ELSEVIER SCIENCE BV, 2019) Llorent-Martinez, Eulogio J.; Fernandez-de Cordova, Maria Luisa; Zengin, Gökhan; Bahadori, Mir Babak; Aumeeruddy, Muhammad Zakariyyah; Rengasamy, Kannan R. R.; Mahomoodally, Mohamad FawziThis study attempts to compare the pharmaceutical potential (antioxidant and key enzyme inhibition of clinical relevance) of organic and aqueous extracts of Parentucellia latifolia (L) Caruel subsp. latifolia (L) Caruel as well as phytochemical composition. The phytochemical compounds were evaluated by spectrophotometric methods (for total amounts) and HPLC-ESI-DAD-MSn (for individual compounds). The extracts were screened for antioxidant abilities by in vitro assays. Inhibition effects were also investigated against a set of enzymes linked to major health problems. Generally, the methanol (MeOH) and aqueous extracts displayed higher scavenging abilities on radicals and reductive effects when compared with the ethyl acetate (EtOAc) extract. On the other hand, the EtOAc extract was the most active inhibitor on cholinesterases (1.81-1.88 mg GALAE/g), amylase (0.70 mmol ACAE/g), glucosidase (2.85 mmol ACAE/g) and lipase (33.24 mg OE/g). The highest TPC was observed in the aqueous extract (25.07 mg GAE/g) while MeOH extract possessed the highest level of TFC (44.15 mg RE/g) and TPAC (3.46 mg CE/g). LCMSn metabolite profiling indicated that loganin and its isomers, rutin, and luteolin-O-hexoside were the most abundant compounds. Our results suggest that P. latifolia may be valuable source of phyto-agents for the management of noncommunicable diseases. (C) 2018 Elsevier B.V. All rights reserved.Öğe Pharmacological and polyphenolic profiles of Phyllanthus phillyreifolius var. comrnersonii Mull. Arg: An unexplored endemic species from Mauritius(ELSEVIER SCIENCE BV, 2019) Mahomoodally, Mohamad Fawzi; Yerlikaya, Şerife; Llorent-Martinez, Eulogio J.; Uğurlu, Aslı; Baloğlu, Mehmet Cengiz; Altunoğlu, Yasemin Çelik; Mollica, Adriano; Dardenne, Kurty Kersley; Aumeeruddy, Muhammad Zakariyyah; Puchooa, Daneshwar; Zengin, GökhanPhyllanduts phillyreifolius var. conunersonii Mfill. Arg is an endemic plant of Mauritius. To date, no study has been performed concerning its polyphenolic profile and pharmacological properties. In this study, a decoction (water), ethyl acetate and methanol extracts of the aerial parts of P. phillyreifolius, obtained from different extraction procedures (maceration and Soxhlet), were studied for antibacterial, antioxidant, anticancer, and enzyme inhibitory properties along with their polyphenolic profile. The ethyl acetate macerated extract showed high antibacterial activity against B. cereus (MIC = 0.293 mg/mL) and E. coil (MIC = 0.417 mg/mL) while S. epidermidis was most susceptible to the ethyl acetate-Soxhlet extract (MIC = 0.521 mg/mL). The methanolSoxhlet extract displayed the most potent cupric and ferric reducing power, and metal chelating effect, while the macerated methanolic extract was the most effective DPPH and ABTS scavenger, and BChE inhibitor. Only the ethyl acetate-Soxhlet extract exhibited alpha-glucosidase inhibition. All extracts exhibited a strong anti-tyrosinase activity, which was further investigated by molecular docking and molecular dynamic. After 48 h exposure to the extracts for HeLa cell lines, the ethyl acetate-Soxhlet extract showed the highest inhibition (IC50 = 533.1 pg/mL) while the decoction extract was more cytotoxic to MDA-MB-231 cells (IC50 = 337.4 pg/mL). Treatment of cancer cell lines with all P. phillyreifolius extracts resulted in a time-dependent reduction of cell viability for HeLa and dose-and time-dependent reduction for MDA-MB-231. Gene expression ratio of Bcl-2 to Bax was higher for all Soxhlet-extracts. Total phenolics (TPC) and flavonoids (TFC) content were highest in the decoction and methanol-Soxhlet extract, respectively (122.43 mg GAE/g extract and 31.28 mg RE/g extract, respectively). The extracts were abundant in ellagitannins, although phenolic acids and flavonoids were also detected. Granatin B was detected for the first time in Phyllanthus species. Overall, the aerial parts of P. phillyreifolius exemplify a potent reservoir of bioactive phytochemicals for therapeutic applications.Öğe Phenolic profile and pharmacological propensities of Gynandriris sisyrinchium through in vitro and in silico perspectives(ELSEVIER SCIENCE BV, 2018) Zengin, Gökhan; Mollica, Adrian; Aumeeruddy, Muhammad Zakariyyah; Rengasamy, Kannan R. R.; Mahomoodally, Mohamad FawziGynandriris sisyrinchiwn is a traditionally used medicinal plant, yet there is a dearth of scientific information on its biological potential and polyphenolic profile. In this endeavour, we aimed to assess and compare the biological properties of different extracts (ethyl acetate, methanol, and water) of G. sisyrinchiwn based on enzyme inhibitory effects coupled with docking studies and antioxidant ability together with screening of bioactive compounds. Polyphenolic composition was assessed by determining total phenolic (TPC) and flavonoid (TFC) content as well as individual phenolic compounds by RP-HPLC-DAD. The antioxidant properties were determined by different assays including free radical scavenging (ABTS and DPPH), reducing power (CUPRAC and FRAP), phosphomolybdenum, and metal chelating. The enzyme inhibitory activities of the extracts were evaluated for the first time against cholinesterases, tyrosinase, alpha-amylase, and alpha-glucosidase. Docking studies were performed to elucidate the interactions of phenolic compounds with the enzymes. Results show that the methanol extract exerted better scavenging, reducing, tyrosinase, and alpha-glucosidase inhibitory activities while the less polar ethyl acetate extract showed better phosphomolybdenum and metal chelating activity, AChE, BChE, and alpha-amylase inhibition. The most abundant compounds were apigenin (4224 and 1876 mu g/g extract in the methanolic and ethyl acetate extract, respectively), benzoic acid (1870 mu g/g extract in the methanolic extract), pcoumaric acid (472 mu g/g extract in the methanolic extract), and quercetin (348 mu g/g extract in the methanolic extract). The present findings suggest that G. sisyrinchiwn can be considered as a potential source of bioactive compounds for novel phytopharmaceuticals development in the treatment and/or management of non communicable diseases.Öğe Phenolic profiling and in vitro biological properties of two Lamiaceae species (Salvia modesta and Thymus argaeus): A comprehensive evaluation(ELSEVIER, 2019) Zengin, Gökhan; Atasagun, Bayram; Aumeeruddy, Muhammad Zakariyyah; Saleem, Hammad; Mollica, Adriano; Bahadori, Mir Babak; Mahomoodally, Mohamad FawziThe genus Salvia and Thymus have gained much popularity as an alternative therapy in Turkish folk medicine for abdominal pain, cold, nausea, among others. Nonetheless, some species are yet to be further explored for their bioactivities. We investigated the biological activities of 3 extracts (dichloromethane, methanol, and water (decoction)) of Salvia modesta Boiss. and Thymus argaeus (Fisch. & C.A.Mey.) Boiss. & Balansa. based on antioxidant and enzyme inhibition along with the determination of polyphenolic content. Antioxidant potential was assessed using six assays namely: 2,2-diphenyl-1-picrylhydrazyl, 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid), cupric ion reducing antioxidant capacity, ferric reducing antioxidant power, phosphomolybdenum, and metal chelating. Moreover, enzyme inhibition activities of the extracts were studied against acetylcholinesterase, butyrylcholinesterase, tyrosinase, a-amylase, and a-glucosidase. Results revealed that the decoction of both plants was the strongest antioxidants. The methanol extracts displayed the highest tyrosinase inhibition while the dichloromethane extracts of both plants were the most effective butyrylcholinesterase and a-glucosidase inhibitors. In addition, the total phenolic and total flavonoid content was highest in the decoction and methanolic extract of Thymus argaeus, respectively. The most abundant phenolic compound was rosmarinic acid (6574 mu g/g and 5390 mu g/g in T. argaeus and S. modesta methanolic extracts, respectively). PASS prediction analysis revealed that chlorogenic acid showed the highest Pa value for antioxidant activity (0.809) including the mechanism of free radical scavenging (0.856), while rosmarinic acid showed the highest Pa value (0.798) for antidiabetic activity. To conclude, both Salvia modesta and Thymus argaeus can be regarded as new sources of antioxidants and enzyme inhibitors to manage oxidative stress and their complications.Öğe Phytochemical profile and antioxidant properties of two Brassicaceae species: Cardaria draba subsp. draba and Descurainia sophia(ELSEVIER SCIENCE BV, 2018) Mahomoodally, Mohamad Fawzi; Zengin, Gökhan; Aumeeruddy, Muhammad Zakariyyah; Sezgin, Mehmet; Aktümsek, AbdurrahmanBrassicaceae is one of the most popular family of vegetables consumed worldwide. Owing to their wide range of phenolic compounds, the attention of researchers has shifted towards their pharmacological exploitation. This study investigates into the antioxidant properties of three solvent extracts (acetone, methanol, and aqueous) of C. draba and D. sophia using six assays including DPPH, ABTS, CUPRAC, FRAP, phosphomolybdenum, and beta-carotene/linoleic acid inhibition. Spectrophotometric and liquid chromatography-electrospray ionization-tandem mass spectrometry (LC-ESI-MS/MS) techniques were used to determine the total and individual phytocompounds, respectively. Results showed that among the C. draba extracts, the methanolic one displayed the highest antioxidant activities in CUPRAC, FRAP, and phosphomolybdenum assays while the aqueous extract exerted the strongest DPPH and ABTS scavenging, and beta-carotene inhibition. As for D. sophia extracts, the acetone extract displayed the highest activity in CUPRAC and phosphomolybdenum assays; the methanol extract was the most effective DPPH scavenger while the aqueous extract showed the highest ABTS scavenging and ferric reducing power, and beta-carotene inhibitory effect. Total phenolic content was highest in the acetone extract of C. draba, while the methanolic extract of D. sophia showed the highest total flavonoid content. The most abundant compounds in C. draba extract were verbascoside and chlorogenic acid, while hesperidin and hyperoside were most abundant in the extract of D. sophia. The present findings revealed that both species had potent antioxidant properties and could be utilized as new natural antioxidants for therapeutic purposes.Öğe Protective effects of Cotoneaster integerrimus on in vitro and ex-vivo models of H2O2-induced lactate dehydrogenase activity in HCT116 cell and on lipopolysaccharide-induced inflammation in rat colon(WILEY, 2019) Zengin, Gökhan; Ferrante, Claudio; Menghini, Luigi; Orlando, Giustino; Brunetti, Luigi; Recinella, Lucia; Chiavaroli, Annalisa; Leone, Sheila; Ronci, Maurizio; Aumeeruddy, Muhammad Zakariyyah; Mahomoodally, Mohamad FawziThe present study evaluated the biological potential of methanol and aqueous extracts of the twigs and fruits of Cotoneaster integerrimus Medik. Lethality bioassays performed on Artemia salina showed that aqueous and methanol C. integerrimus extracts were non-toxic in the concentration range (0.1-20 mg/ml), with a LC50 >= 2.5 mg/ml, for each single extract. The protective effect of the extracts was assessed in vitro against hydrogen peroxide-induced lactate dehydrogenase (LDH) activity and tumor necrosis factor (TNF)alpha gene expression in colon cancer HCT116 cell line. All the extracts downregulated (H2O2)-induced TNF alpha gene expression, in HCT116. By contrast, it was observed that the lipopolysaccharide (LPS)-induced increase in colon nitrite, prostaglandin E-2, and 8-iso-PGF(2 alpha) levels were counteracted mostly by the methanol twig extract. The present study showed protective effects induced by C. integerrimus in vitro and ex vivo, thus supporting potential application in the management of chronic inflammatory diseases.Öğe Scrophularia Lucida L. As A Valuable Source Of Bioactive Compounds For Pharmaceutical Applications: In Vitro Antioxidant, Anti-İnflammatory, Enzyme İnhibitory Properties, İn Silico Studies, And HPLC Profiles(ELSEVIER SCIENCE BV, 2019) Zengin, Gökhan; Stefanucci, Azzurra; Rodrigues, Maria Joao; Mollica, Adriano; Custodio, Luisa; Aumeeruddy, Muhammad Zakariyyah; Mahomoodally, Mohamad FawziThe genus Scrophularia has received much interest with regards to its traditional uses against eczema, psoriasis, and mastitis. Yet, the medicinal properties of some species still need to be scientifically validated. The present study was designed to investigate into the biological properties of various solvent extracts (ethyl acetate, methanol, and aqueous) of the roots and aerial parts of Scrophularia lucida based on its antioxidant, anti-inflammatory, and enzyme inhibitory activities together with phytochemical screening. Our results revealed that the solvent extracts differed in their biological effectiveness. The root ethyl acetate extract showed the highest ABTS scavenging, FRAP, CUPRAC, and inhibitory activity against AChE and alpha-glucosidase. The ethyl acetate extract of the aerial parts displayed the highest BChE and alpha-amylase inhibition and antioxidant effect in the phosphomolybdenum assay, while the methanol extracts of both parts were the most effective DPPH center dot scavengers and tyrosinase inhibitors. The methanol extracts of the root and aerial parts also inhibited NO production in lipopolysaccharide (LPS)-stimulated murine leukemic monocyte-macrophage cell (4.99% and 10.77%, respectively), at 31.25 mu g/mL concentration. The highest TPC (34.98 mg GAE/g extract) and TFC (48.33 mg RE/g extract) were observed in the ethyl acetate extract of the root and aerial parts, respectively. The most abundant compounds in the root ethyl acetate extract were luteolin (852 mu g/g extract), rosmarinic acid (522 mu g/g extract), and hesperidin (394 mu g/g extract) while kaempferol was most abundant in the ethyl acetate extract of the aerial parts (628 mu g/g extract). In silico experiments were conducted on tyrosinase and the higher docking values were observed for rosmarinic acid and hesperidin. The present findings provide base line information which tend to support the potential use of S. lucida in the management of several chronic diseases, including Alzheimer's disease and diabetes mellitus. (C) 2018 Elsevier B.V. All rights reserved.Öğe Volatile components, pharmacological profile, and computational studies of essential oil from Aegle marmelos (Bael) leaves: A functional approach(ELSEVIER, 2018) Mahomoodally, Mohamad Fawzi; Mollica, Adriano; Stefanucci, Azzura; Aumeeruddy, Muhammad Zakariyyah; Poorneeka, Ramjuttun; Zengin, GökhanThe increasing therapeutic use of plant essential oil (EO) in aromatherapy has urged scientists to investigate into its biological potency. We report the phytochemical composition of the EO of Aegle marmelos (L.) Correa using GC-MS analysis, together with its pharmacological properties (antibacterial, antioxidant, and enzyme inhibitory properties). Molecular docking of the major identified compounds against tyrosinase and a-glucosidase was also performed. The EO displayed the highest total antioxidant potential in the phosphomolybdenum assay (24.70 mmol TE/g sample), but showed mild scavenging (DPPH = 0.03 mmol TE/g sample), and reducing effect (CUPRAC = 0.54 mmol TE/g sample, FRAP = 0.21 mmol TE/g sample). Moreover, the EO of A. marmelos showed the greatest inhibitory property against tyrosinase 53.68 (mg KAE/g sample) and good inhibitory effect on alpha-glucosidase (39.08 mmol ACAE/g sample) compared with alpha-amylase (0.19 mmol ACAE/g sample). In addition, the EO exhibited moderate AChE inhibition (2.75 mg GALAE/g sample) and BChE inhibition (4.93 mg GALAE/g sample). Disc diffusion assay revealed that S. aureus (Zone of inhibition (ZOI) = 21.4 mm) was most susceptible to the EO followed by C. diphtheriae (ZOI = 17.2 mm) while the lowest MIC value was observed against B. cereus and C. diphtheriae (MIC = 125 mu g/ml). The EO of A. marmelos was abundant in limonene (74.9%) followed by beta-phellandrene (4.4%), p-cyrnene (4.2%), and beta-caryophyllene (2.0%). Humulene and cryptone exhibited higher docking score after docking to tyrosinase while the best docking scores observed against alpha-glucosidase was found for humulene and carveol. The EO of A. marmelos showed promising inhibitory activities against vital enzymes related to diabetes, neurological, and skin disorders, and mild antioxidant ability, thus highlighting the quenching abilities of surplus reactive oxygen species related to these disorders. It is predicted that the results obtained will stimulate further research to probe into the therapeutic properties of A. marmelos.
