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Khan KM, Nadeem MF, Mannan A, Chohan TA, Islam M, Ansari SA, Alkahtani HM, Ansari IA, Khurshid U, Abidin SAZ, Shah SAA, Saleem H. Biochemical, Toxicological, and in Silico Aspects of Trillium govanianum Wall. ex D.Don (Trilliaceae): A Rich Source of Natural Bioactive Compounds. Chem Biodivers 2024; 21:e202301375. [PMID: 38031244 DOI: 10.1002/cbdv.202301375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 11/29/2023] [Accepted: 11/29/2023] [Indexed: 12/01/2023]
Abstract
Trillium govanianum is a high-value medicinal herb, having multifunctional traditional and culinary uses. The present investigation was carried out to evaluate the phytochemical, biological and toxicological parameters of the T. govanianum Wall. ex D. Don (Family: Trilliaceae) roots collected from Azad Kashmir, Pakistan. Phytochemical profiling was achieved by determining total bioactive contents (total phenolic and flavonoid contents) and UHPLC-MS analysis. For biological evaluation, antioxidant activities (DPPH, ABTS, FRAP, CUPRAC, phosphomolybdenum, and metal chelation assays) and enzyme inhibition activities (against AChE, BChE, glucosidase, amylase, and tyrosinase) were performed. Moreover, cytotoxicity was assessed against three human carcinoma cell lines (MDA-MB-231, CaSki, and DU-145). The tested extract was found to contain higher total phenolics (7.56 mg GAE/g dry extract) as compared to flavonoid contents (0.45 mg RE/g dry extract). Likewise, for the antioxidant activity, higher CUPRAC activity was noted with 39.84 mg TE/g dry extract values. In the case of enzyme assays, higher activity was pointed out against the cholinesterase, glucosidase and tyrosinase enzymes. The plant extract displayed significant cytotoxicity against the cell lines examined. Moreover, the in-silico studies highlighted the interaction between the important phytochemicals and tested enzymes. To conclude, the assessed biological activity and the existence of bioactive phytochemicals in the studied plant extract may pave the way for the development of novel pharmaceuticals.
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Affiliation(s)
- Kashif Maqbool Khan
- Institute of Pharmaceutical Sciences (IPS), University of Veterinary & Animal Sciences (UVAS), Lahore, Pakistan
| | - Muhammad Faisal Nadeem
- Institute of Pharmaceutical Sciences (IPS), University of Veterinary & Animal Sciences (UVAS), Lahore, Pakistan
| | - Abdul Mannan
- Department of Pharmacy, COMSATS Institute of Information Technology, Abbottabad, 22060, Pakistan
| | - Tahir Ali Chohan
- Institute of Pharmaceutical Sciences (IPS), University of Veterinary & Animal Sciences (UVAS), Lahore, Pakistan
| | - Muhammad Islam
- University College of Pharmacy, Punjab University, Pakistan
| | - Siddique Akber Ansari
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P, .O Box 2457, Riyadh, 11451, Saudi Arabia
| | - Hamad M Alkahtani
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P, .O Box 2457, Riyadh, 11451, Saudi Arabia
| | - Irfan Aamer Ansari
- Department of Drug Science and Technology, University of Turin, 10124, Turin, Italy
| | - Umair Khurshid
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, The Islamia University of Bahawalpur, Pakistan
| | - Syafiq Asnawi Zainal Abidin
- Jeffrey Cheah School of Medicine and Health Sciences, Monash University, Jalan Lagoon Selatan, 47500, Bandar Sunway Selangor Darul Ehsan, Malaysia
| | - Syed Adnan Ali Shah
- Faculty of Pharmacy, Universiti Teknologi MARA Cawangan Selangor Kampus Puncak Alam, Bandar Puncak Alam, Selangor, 42300, Malaysia
- Atta-ur-Rahman Institute for Natural Product Discovery (AuRIns), Universiti Teknologi MARA Cawangan Selangor Kampus Puncak Alam, Bandar Puncak Alam, Selangor, 42300, Malaysia
| | - Hammad Saleem
- Institute of Pharmaceutical Sciences (IPS), University of Veterinary & Animal Sciences (UVAS), Lahore, Pakistan
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Khataybeh B, Jaradat Z, Ababneh Q. Anti-bacterial, anti-biofilm and anti-quorum sensing activities of honey: A review. JOURNAL OF ETHNOPHARMACOLOGY 2023; 317:116830. [PMID: 37400003 DOI: 10.1016/j.jep.2023.116830] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 05/31/2023] [Accepted: 06/20/2023] [Indexed: 07/05/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Man has used honey to treat diseases since ancient times, perhaps even before the history of medicine itself. Several civilizations have utilized natural honey as a functional and therapeutic food to ward off infections. Recently, researchers worldwide have been focusing on the antibacterial effects of natural honey against antibiotic-resistant bacteria. AIM OF THE STUDY This review aims to summarize research on the use of honey properties and constituents with their anti-bacterial, anti-biofilm, and anti-quorum sensing mechanisms of action. Further, honey's bacterial products, including probiotic organisms and antibacterial agents which are produced to curb the growth of other competitor microorganisms is addressed. MATERIALS AND METHODS In this review, we have provided a comprehensive overview of the antibacterial, anti-biofilm, and anti-quorum sensing activities of honey and their mechanisms of action. Furthermore, the review addressed the effects of antibacterial agents of honey from bacterial origin. Relevant information on the antibacterial activity of honey was obtained from scientific online databases such as Web of Science, Google Scholar, ScienceDirect, and PubMed. RESULTS Honey's antibacterial, anti-biofilm, and anti-quorum sensing activities are mostly attributed to four key components: hydrogen peroxide, methylglyoxal, bee defensin-1, and phenolic compounds. The performance of bacteria can be altered by honey components, which impact their cell cycle and cell morphology. To the best of our knowledge, this is the first review that specifically summarizes every phenolic compound identified in honey along with their potential antibacterial mechanisms of action. Furthermore, certain strains of beneficial lactic acid bacteria such as Bifidobacterium, Fructobacillus, and Lactobacillaceae, as well as Bacillus species can survive and even grow in honey, making it a potential delivery system for these agents. CONCLUSION Honey could be regarded as one of the best complementary and alternative medicines. The data presented in this review will enhance our knowledge of some of honey's therapeutic properties as well as its antibacterial activities.
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Affiliation(s)
- Batool Khataybeh
- Department of Nutrition and Food Technology, Jordan University of Science and Technology, Irbid, 22110, Jordan
| | - Ziad Jaradat
- Department of Biotechnology and Genetic Engineering, Jordan University of Science and Technology, Irbid, 22110, Jordan.
| | - Qutaiba Ababneh
- Department of Biotechnology and Genetic Engineering, Jordan University of Science and Technology, Irbid, 22110, Jordan
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Arismendi Sosa AC, Mariani ML, Vega AE, Penissi AB. Extra virgin olive oil inhibits Helicobacter pylori growth in vitro and the development of mice gastric mucosa lesions in vivo. Front Microbiol 2022; 13:961597. [PMID: 35992644 PMCID: PMC9389160 DOI: 10.3389/fmicb.2022.961597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Accepted: 07/14/2022] [Indexed: 11/29/2022] Open
Abstract
Helicobacter pylori infection is widespread worldwide, with more than a half of the world population infected. H. pylori antibiotic-resistant strains and non-compliance to therapy are the major causes of H. pylori eradication failure. The search for new therapies based on plant extracts is a scientific interest field. The present study was conducted to evaluate the effect in vitro of extra virgin olive oil (EVOO), hydroxytyrosol (HT), and oleuropein (Olp) against two H. pylori strains and the effect in vivo of the oral administration of EVOO on the gastric mucosa of BALB/c mice infected with this microorganism. The broth microdilution method assayed the antibacterial in vitro activity of EVOO, HT, and Olp against H. pylori strains. For in vivo studies, male BALB/c mice were infected orally with an H. pylori suspension every 72 h. Four groups were used: (1) Control, (2) H. pylori-infected (HP), (3) EVOO, and (4) HP + EVOO. Mice were sacrificed at 7, 15, and 30 days. The stomachs were removed and observed under a microscope. Scoring of the degree of erosion was determined. Samples were processed by histological techniques for light microscopy. Macroscopic analysis showed that the presence of small erosions increased, both in number and size, in the infected group. Animals infected and treated with EVOO exhibited the presence of fewer erosions, which decreased in number as the treatment progressed. The mucosa of the control and EVOO groups showed normal histological characteristics at the three times studied. The mucosa of animals infected with H. pylori showed disruptions of the lining epithelium, damage to gastric glands, and vasodilation. The mucosa of animals infected with H. pylori and treated with EVOO showed morphological characteristics similar to those of normal and EVOO mucosa. For the first time, the current study showed the effect in vitro and in vivo of EVOO and combined administration of HT and Olp against H. pylori using an animal model. Future studies are needed to establish the mechanism of EVOO’s action at the gastric mucosa level to propose this product as a natural antimicrobial agent for the treatment of gastric H. pylori infections.
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Affiliation(s)
- Andrea Celeste Arismendi Sosa
- Área de Microbiología e Inmunología, Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis, San Luis, Argentina
| | - María Laura Mariani
- Instituto de Histología y Embriología “Dr. Mario H. Burgos” (IHEM-CCT Mendoza-CONICET), Facultad de Ciencias Médicas, Universidad Nacional de Cuyo, Mendoza, Argentina
| | - Alba Edith Vega
- Área de Microbiología e Inmunología, Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis, San Luis, Argentina
| | - Alicia Beatriz Penissi
- Instituto de Histología y Embriología “Dr. Mario H. Burgos” (IHEM-CCT Mendoza-CONICET), Facultad de Ciencias Médicas, Universidad Nacional de Cuyo, Mendoza, Argentina
- *Correspondence: Alicia Beatriz Penissi,
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Li Y, Li X, Tan Z. Basic Traditional Chinese Medicinal Compound for Adjuvant Treatment of Helicobacter pylori-Related Gastritis: Implication for Anti- H. pylori-Related Gastritis Drug Discovery. Nat Prod Commun 2022. [DOI: 10.1177/1934578x221113968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
This study was aimed at evaluating the efficacy of traditional Chinese medicine (TCM) in the adjuvant treatment of Helicobacter pylori-associated gastritis (HPAG) and exploring the molecular mechanism underlying the action of the basic TCM compounds against HPAG. Eight representative Chinese and British databases were combed for pertinent literature. In light of the basic principle of evidence-based medicine, this work rigorously stuck to the inclusion and exclusion of criteria so as to plump for qualified articles. Also, the data mining method was adopted to help determine the basic TCM compound for HPAG treatment. Furthermore, a network pharmacology-based strategy was used to uncover the underlying mechanisms of the basic TCM compound against HPAG. Ultimately, molecular docking was used for preliminary verification. TCM combined with triple or quadruple therapy against HPAG possessed more advantages in improving the total effective rate and H. pylori eradication rate than triple or quadruple therapy alone. The basic TCM plant materials against HPAG consisted of Citrus reticulata Blanco, Glycyrrhiza uralensis Fisch, Pinellia ternata (Thunb.) Breit, Coptis chinensis Franch, and Poria cocos (Schw.) Wolf. Quercetin, kaempferol, naringenin, baicalein, nobiletin, and hederagenin were determined as the key active ingredients of the basic TCM preparation against HPAG. Moreover, these ingredients played a therapeutic role by acting on AKT1, TP53, interleukin (IL)-6, VEGFA, CASP3, MAPK3, JUN, TNF, and MAPK8 via Pathways in cancer, PI3K-Akt signaling pathway, TNF signaling pathway, and MAPK signaling pathway. The results of molecular docking indicated that the key ingredients could bind stably with the core targets. The efficacy of the TCM in the adjuvant treatment of HPAG is worthy of affirmation. Compatible use of the key ingredients of the basic TCM compound is a novel idea of drug research with profound clinical significance and research value in the development of anti- H. pylori drugs.
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Affiliation(s)
- Yuli Li
- College of Chinese Medicine, Hunan University of Chinese Medicine, Changsha, Hunan Province, China
| | - Xiaoya Li
- College of Chinese Medicine, Hunan University of Chinese Medicine, Changsha, Hunan Province, China
| | - Zhoujin Tan
- College of Chinese Medicine, Hunan University of Chinese Medicine, Changsha, Hunan Province, China
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El-Sherbiny GM, Elbestawy MKM. A review – plant essential oils active against Helicobacter pylori. JOURNAL OF ESSENTIAL OIL RESEARCH 2022. [DOI: 10.1080/10412905.2022.2025464] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Gamal M. El-Sherbiny
- Botany and Microbiology Department, Faculty of Science, Al-Azhar University, Nasr City, Egypt
| | - Mahmoud K. M. Elbestawy
- Botany and Microbiology Department, Faculty of Science, Al-Azhar University, Nasr City, Egypt
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Mamidala R, Bhimathati SRS, Vema A. Discovery of Novel Dihydropyrimidine and hydroxamic acid hybrids as potent Helicobacter pylori Urease inhibitors. Bioorg Chem 2021; 114:105010. [PMID: 34102519 DOI: 10.1016/j.bioorg.2021.105010] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 05/19/2021] [Accepted: 05/20/2021] [Indexed: 11/25/2022]
Abstract
Two novel series of Dihydropyrimidine-hydroxamic acid hybrids (4a-4l and 5a-5l) were designed, synthesized and evaluated for in vitro Helicobacter pylori urease inhibition. In vitro enzyme inhibition screening led to the discovery of three potent urease inhibitors 2-[[4-(4-hydroxy phenyl)-6-oxo-1,6-dihydropyrimidine-2-yl]-amino]-N-hydroxy acetamide (4g), 2-[[4-(4-chloro phenyl)-6-oxo-1,6-dihydropyrimidine-2-yl]-amino]-N-hydroxy acetamide (4b) and 3-[[4-(3-methoxy phenyl)-6-oxo-1,6-dihydropyrimidine-2-yl]-amino]-N-hydroxy propanamide (5l). Compound 4g showed excellent urease inhibition with IC50 value of 14 ± 1 nM, indicated by its strong interactions with both metallic Ni++ ions, Gly279, His221, Ala365, Asp362, Asn168, Arg338 and His322 residues of the active site of urease. Further, compounds 4b and 5l displayed very good activity with IC50 value of 0.082 ± 0.004 µM and 0.14 ± 0.013 µM respectively compared to standard Acetohydroxamic acid (IC50 - 27.4 ± 1.2 µM). Kinetic studies revealed that a mixed inhibition with both competitive and non-competitive aspects is involved in the urease inhibition mechanism. The in vitro urease inhibition results were supported by molecular docking studies. Collectively, this study indicates that 4g could be considered as promising lead molecule that can be further developed as a potent drug molecule for the treatment of Helicobacter pylori caused gastritis for further studies.
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Affiliation(s)
- Ravinder Mamidala
- Department of Medicinal Chemistry, St. Peter's Institute of Pharmaceutical Sciences, Hanamkonda, Warangal, Telangana 506001, India; Department of Pharmaceutical Chemistry, Institute of Science and Technology, Jawaharlal Nehru Technological University, Hyderabad, Telangana 500085, India
| | - Solomon Raj S Bhimathati
- Department of Pharmacology, Gland Institute of Pharmaceutical Sciences, Medak, Telangana 502220, India
| | - Aparna Vema
- Department of Animal Biology, School of Life Sciences, University of Hyderabad, Hyderabad 500046, India.
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The In Vitro Activity of Essential Oils against Helicobacter Pylori Growth and Urease Activity. Molecules 2020; 25:molecules25030586. [PMID: 32013183 PMCID: PMC7037374 DOI: 10.3390/molecules25030586] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Revised: 01/21/2020] [Accepted: 01/28/2020] [Indexed: 12/23/2022] Open
Abstract
The anti-H. pylori properties of 26 different commercial essential oils were examined in vitro by MIC (minimal inhibitory concentration) determination for the reference strain H. pylori ATCC 43504. We selected 9 essential oils with different anti-Helicobacter activities and established their phytochemical composition and urease inhibition activities. Phytochemical analysis of the selected essential oils by GC-MS method and antioxidant activity were performed. The phenol red method was used to screen the effect of essential oils on urease activity expressed as IC50 (the half of maximal inhibitory concentration). The most active essential oils, with MIC = 15.6 mg/L, were thyme, lemongrass, cedarwood and lemon balm oils; MIC = 31.3 mg/L—oregano oil; MIC = 62.5 mg/L—tea tree oil; MIC = 125 mg/L—pine needle, lemon and silver fir oils with bactericidal effect. Urease activity was inhibited by these oils with IC50 ranged from 5.3 to > 1049.9 mg/L. The most active was cedarwood oil (IC50 = 5.3 mg/L), inhibiting urease at sub-MIC concentrations (MIC = 15.6 mg/L). The statistical principal component analysis allowed for the division of the oils into three phytochemical groups differing in their anti-H. pylori activity. To summarize, the activity in vitro of the five essential oils silver fir, pine needle, tea tree, lemongrass, and cedarwood oils against H. pylori was found in this paper for the first time. The most active against clinical strains of H. pylori were cedar wood and oregano oils. Moreover, cedarwood oil inhibited the urease activity at subinhibitory concentrations. This essential oil can be regarded as a useful component of the plant preparations supporting the eradication H. pylori therapy.
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Fernandes TA, André V, Arol AS, França Â, Mikhalyonok S, Cerca N, Kirillov AM. New silver (thio)semicarbazide derivatives: synthesis, structural features, and antimicrobial activity. NEW J CHEM 2020. [DOI: 10.1039/d0nj02013c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
New silver(i) (thio)semicarbazide coordination compounds were prepared, fully characterized, and tested as antimicrobial and antibiofilm agents.
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Affiliation(s)
- Tiago A. Fernandes
- Centro de Química Estrutural and Departamento de Engenharia Química
- Instituto Superior Técnico
- Universidade de Lisboa
- 1049-001 Lisboa
- Portugal
| | - Vânia André
- Centro de Química Estrutural and Departamento de Engenharia Química
- Instituto Superior Técnico
- Universidade de Lisboa
- 1049-001 Lisboa
- Portugal
| | - Aliaksandr S. Arol
- Centro de Química Estrutural and Departamento de Engenharia Química
- Instituto Superior Técnico
- Universidade de Lisboa
- 1049-001 Lisboa
- Portugal
| | - Ângela França
- Centre of Biological Engineering
- University of Minho
- 4710-057 Braga
- Portugal
| | - Sergei Mikhalyonok
- Department of Organic Chemistry
- Belarusian State Technological University
- 220006 Minsk
- Belarus
| | - Nuno Cerca
- Centre of Biological Engineering
- University of Minho
- 4710-057 Braga
- Portugal
| | - Alexander M. Kirillov
- Centro de Química Estrutural and Departamento de Engenharia Química
- Instituto Superior Técnico
- Universidade de Lisboa
- 1049-001 Lisboa
- Portugal
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Kataria R, Khatkar A. Contribution of Resveratrol in the Development of Novel Urease Inhibitors: Synthesis, Biological Evaluation and Molecular Docking Studies. Comb Chem High Throughput Screen 2019; 22:245-255. [DOI: 10.2174/1386207322666190410150216] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Revised: 11/09/2018] [Accepted: 12/11/2018] [Indexed: 01/25/2023]
Abstract
Aims and Objective:
A new library of resveratrol derivatives was designed and
synthesized in excellent yield via two-step reaction utilizing Vilsmeier reaction as the first step and
subsequent addition of substituted aromatic amine in the second step.
Methods:
Synthesized compounds were investigated for their antioxidant as well as for in vitro
inhibition activity against jack bean urease enzyme. Compounds R3b and R4 with IC50 value
18.85±0.15 and 21.60±0.19µM against urease enzyme and 6.01±0.07 and 7.52±0.14µM in vitro-
DPPH free radical scavenging activity have emerged as most active molecules from the selected
library. Molecular simulation studies were also carried out for determining the interaction detail of
newly synthesized compounds within a protein pocket.
Results and Conclusion:
Newly synthesized compounds were found to possess better docking
score (-5.941 to -6.894) and binding energy (-46.854 to -56.455) as compared to the parent
resveratrol (-5.45 and -20.155) which revealed that the newly synthesized compounds bind in a
better way as compared to the parent molecule
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Affiliation(s)
- Ritu Kataria
- International Institute of Pharmaceutical Sciences, Sonepat, Haryana, India
| | - Anurag Khatkar
- Department of Pharmaceutical Sciences, Maharshi Dayanand University, Rohtak, Haryana, India
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Natural urease inhibitors from Aloe vera resin and Lycium shawii and their structural-activity relationship and molecular docking study. Bioorg Chem 2019; 88:102955. [PMID: 31054431 DOI: 10.1016/j.bioorg.2019.102955] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2018] [Revised: 03/10/2019] [Accepted: 04/26/2019] [Indexed: 02/01/2023]
Abstract
Bio-assay guided fractionation of the methanolic extract of Aloe vera resin and Lycium shawii stem successively afforded twenty three compounds; fourteen (1-14) from A. vera and nine (15-23) from L. shawii. All these compounds were characterized by 1D and 2D NMR spectroscopic techniques viz., 1H, 13C, DEPT, HSQC, HMBC, and COSY, and NEOSY, ESI-MS and compared with the reported literature. These compounds were assessed for their potential as urease inhibitors targeted in peptic ulcer. Among crude extracts and fractions of A. vera resin, n-butanol fraction (23.5 ± 1.7 μg·mL-1) showed the most potent urease inhibition followed by methanol (30.9 ± 0.3 μg/mL) and ethyl acetate (31.7 ± 0.5 μg·mL-1). In case of L. shawii, ethyl acetate fraction exhibited the highest urease activity (41.0 ± 1.4 μg/mL) trailed by dichloromethane (55.2 ± 1.5 μg/mL) fraction. Among the isolates, compounds 7, 11 and 23 were found to be excellent urease inhibitors with IC50 values of 14.5 ± 0.90 µM, (16.7 ± 0.16 µM) and 14.0 ± 0.8 µM, respectively. To the best of our knowledge, this is the first report on the urease enzyme inhibitory activity of the said compounds excluding compound 18. In addition, the urease activity of different fractions of L. shawii stem was also reported for the first time. The molecular docking studies showed that all the active compounds well accommodate in the active site of the urease enzyme by interacting with key amino acids.
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Kataria R, Khatkar A. In-silico design, synthesis, ADMET studies and biological evaluation of novel derivatives of Chlorogenic acid against Urease protein and H. Pylori bacterium. BMC Chem 2019; 13:41. [PMID: 31384789 PMCID: PMC6661759 DOI: 10.1186/s13065-019-0556-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Accepted: 03/15/2019] [Indexed: 12/26/2022] Open
Abstract
Background Plants have always played important role in treating human and animal diseases as a therapeutic agent for traditional medicine. Through extensive research throughout the world, potential of natural products have been identified to control the over activity of many enzymes. In-silico screening a library of chlorogenic acid derivatives highlighted some novel compounds which were found effective against urease enzyme and cancer causing H. Pylori bacterium. Selected top ligands possessing minimum binding energy and good docking score were synthesized in wet lab by suitable procedure and evaluated for urease enzyme inhibition and free radical scavenging property. Synthetic scheme includes three step reactions i. e protection of hydroxyl group of quinic acid part of chlorogenic acid with lactonisation process, anilide formation by reaction with substituted anilines followed by extraction with ethyl acetate under vacuum and deprotection of hydroxyl groups by treatment with hydrochloric acid. Results In-vitro results of the series concluded that compounds C4a, C4d and C4b (IC50 11.01 ± 0.013, 13.8 ± 0.041 and 15.86 ± 0.004 µM respectively in urease inhibition and 5.10 ± 0.018, 5.34 ± 0.007 and 6.01 ± 0.005 µM in antioxidant property against DPPH) were found to be significantly potent with excellent dock score − 10.091, − 10.603, − 9.833 and binding energy − 62.674, − 63.352, 56.267 kg/mol as compared to standard drugs thiourea and acetohydroxamic acid (− 3.459, − 3.049 and − 21.156 kJ/mol and − 17.454 kJ/mol) whereas compounds C4c, C4(e, h) exhibited moderate in vivo activity when compared to standard. Conclusions Selected candidates from the outcome of in vitro urease inhibitory were further examined for anti-H. Pylori activity by well diffusion method against H. pylori bacterium (DSM 4867). Compound C4a showed significant anti-H. Pylori activity with zone of inhibition 10.00 ± 0.00 mm and MIC value 500 μg/mL as compared to standard drug acetohydroxamic acid having zone of inhibition 9.00 ± 0.50 mm and MIC 1000 μg/mL. Molecular docking studies also showed that compounds show strong inhibition by forming strong hydrogen bonding interactions with residues of pocket site in target protein. Hence, the present investigation studies will provide a new vision for the discovery of potent agents against H. Pylori and urease associated diseases.
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Affiliation(s)
- Ritu Kataria
- International Institute of Pharmaceutical Sciences, Sonepat, Haryana India
| | - Anurag Khatkar
- 2Laboratory for Preservation Technology and Enzyme Inhibition Studies, Faculty of Pharmaceutical Sciences, Maharshi Dayanand University, Rohtak, Haryana India
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Kafarski P, Talma M. Recent advances in design of new urease inhibitors: A review. J Adv Res 2018; 13:101-112. [PMID: 30094085 PMCID: PMC6077125 DOI: 10.1016/j.jare.2018.01.007] [Citation(s) in RCA: 115] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Revised: 01/09/2018] [Accepted: 01/16/2018] [Indexed: 12/22/2022] Open
Abstract
Urease is a nickel-dependent metalloenzyme found in plants, some bacteria, and fungi. Bacterial enzyme is of special importance since it has been demonstrated as a potent virulence factor for some species. Especially it is central to Helicobacter pylori metabolism and virulence being necessary for its colonization of the gastric mucosa, and is a potent immunogen that elicits a vigorous immune response. Therefore, it is not surprising that efforts to design, synthesize and evaluate of new inhibitors of urease are and active field of medicinal chemistry. In this paper recent advances on this field are reviewed.
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Affiliation(s)
- Paweł Kafarski
- Department of Bioorganic Chemistry, Faculty of Chemistry, Wrocław University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
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Manuka honey ( Leptospermum scoparium ) inhibits jack bean urease activity due to methylglyoxal and dihydroxyacetone. Food Chem 2017; 230:540-546. [DOI: 10.1016/j.foodchem.2017.03.075] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Revised: 02/22/2017] [Accepted: 03/13/2017] [Indexed: 11/20/2022]
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Hassan STS, Šudomová M. The Development of Urease Inhibitors: What Opportunities Exist for Better Treatment of Helicobacter pylori Infection in Children? CHILDREN-BASEL 2017; 4:children4010002. [PMID: 28054971 PMCID: PMC5296663 DOI: 10.3390/children4010002] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Revised: 12/25/2016] [Accepted: 12/27/2016] [Indexed: 12/12/2022]
Abstract
Stomach infection with Helicobacter pylori (H. pylori) causes severe gastroduodenal diseases in a large number of patients worldwide. The H. pylori infection breaks up in early childhood, persists lifelong if not treated, and is associated with chronic gastritis and an increased risk of peptic ulcers and gastric cancer. In recent years, the problem of drug-resistant strains has become a global concern that makes the treatment more complicated and the infection persistent at higher levels when the antibiotic treatment is stopped. Such problems have led to the development of new strategies to eradicate an H. pylori infection. Currently, one of the most important strategies for the treatment of H. pylori infection is the use of urease inhibitors. Despite the fact that large numbers of molecules have been shown to exert potent inhibitory activity against H. pylori urease, most of them were prevented from being used in vivo and in clinical trials due to their hydrolytic instability, toxicity, and appearance of undesirable side effects. Therefore, it is crucial to focus attention on the available opportunities for the development of urease inhibitors with suitable pharmacokinetics, high hydrolytic stability, and free toxicological profiles. In this commentary, we aim to afford an outline on the current status of the use of urease inhibitors in the treatment of an H. pylori infection, and to discuss the possibility of their development as effective drugs in clinical trials.
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Affiliation(s)
- Sherif T S Hassan
- Department of Natural Drugs, Faculty of Pharmacy, University of Veterinary and Pharmaceutical Sciences Brno, Palackého tř. 1946/1, 61242 Brno, Czech Republic.
- Department of Applied Ecology, Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamýcká 129, 165 21 Praha 6-Suchdol, Czech Republic.
| | - Miroslava Šudomová
- Museum of the Brno Region, Museum of Literature in Moravia, Porta Coeli 1001, 66602 Předklášteří, Czech Republic.
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Antimicrobial activity of solvent fractions and bacterial isolates of Korean domestic honey from different floral sources. Food Sci Biotechnol 2016; 25:1507-1512. [PMID: 30263438 DOI: 10.1007/s10068-016-0234-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Revised: 07/19/2016] [Accepted: 08/01/2016] [Indexed: 01/22/2023] Open
Abstract
Forty solvent fractions and 387 bacterial isolates of seven varieties of Korean domestic honey and manuka honey from New Zealand were screened for antimicrobial activity. The minimum inhibitory concentrations and minimum bactericidal concentrations of the honey fractions were determined; only Bacillus cereus ATCC 14579, ATCC 11778, and F4552 were inhibited by 11, 1, and 16, respectively, out of the 40 honey fractions. The bacterial isolates showed the highest incidence (30.2%) of antimicrobial activity against Listeria monocytogenes ATCC 15313. The growth of at least one of the five foodborne pathogens tested was inhibited by 109 of the 327 isolates (33.3%) from seven types of Korean domestic honey. The percentage of such isolates of manuka honey was significantly higher (76.7%). Solvent fractionation of honey could contribute to the detection of antimicrobial activity of the nonsugar compounds in honey. Moreover, the bacterial isolates from Korean domestic honey may be good sources for the natural antimicrobials used in the food industry and other related industries.
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16
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Synthesis and urease inhibitory activities of benzophenone semicarbazones/thiosemicarbazones. Med Chem Res 2016. [DOI: 10.1007/s00044-016-1673-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Hashem-Dabaghian F, Agah S, Taghavi-Shirazi M, Ghobadi A. Combination of Nigella sativa and Honey in Eradication of Gastric Helicobacter pylori Infection. IRANIAN RED CRESCENT MEDICAL JOURNAL 2016; 18:e23771. [PMID: 28191328 PMCID: PMC5292131 DOI: 10.5812/ircmj.23771] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/20/2014] [Revised: 03/29/2015] [Accepted: 04/19/2015] [Indexed: 12/21/2022]
Abstract
Background Gastric Helicobacter pylori is extremely common worldwide. Objectives The aim of this study was to assess the effectiveness of combination of Nigella sativa and honey (Dosin) in eradication of gastric H. pylori infection. Patients and Methods Nineteen patients who had positive result for H. pylori infection by urea breath test (UBT) without a past history of peptic ulcer, gastric cancer or gastrointestinal bleeding, were suggested to receive one teaspoon of the mixture of Dosin (6 g/day of N. sativa as ground seeds and 12 g/day of honey) three times a day after meals for two weeks. The second UBT was used to detect the presence of H. pylori four weeks after completion of the test. In addition, symptoms of dyspepsia were scored before and after the study and analyzed with Wilcoxon signed-rank test. Results Fourteen patients completed the study. Negative UBT was observed in 57.1% (8/14) of participants after intervention. The median and interquartile range (IQR) of total dyspepsia symptoms was significantly reduced from 5.5 (5 - 12) to 1 (0 - 4) (P = 0.005). All the patients tolerated Dosin except for one who was excluded due to mild diarrhea. No serious adverse events were reported. Conclusions Dosin was concluded to be an anti H. pylori and an anti-dyspeptic agent. Further studies are recommended to investigate the effect of Dosin plus antibiotics (concurrently or following another) on gastric H. pylori infection.
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Affiliation(s)
- Fataneh Hashem-Dabaghian
- Research Institute for Islamic and Complementary Medicine, Iran University of Medical Sciences, Tehran, IR Iran
- Corresponding Author: Fataneh Hashem-Dabaghian, Research Institute for Islamic and Complementary Medicine, Iran University of Medical Sciences, Tehran, IR Iran. Tel: +98-2133950154, E-mail:
| | - Shahram Agah
- Department of Gastroenterology, Iran University of Medical Sciences, Tehran, IR Iran
| | - Maryam Taghavi-Shirazi
- Research Institute for Islamic and Complementary Medicine, School of Iranian Traditional Medicine, Iran University of Medical Sciences, Tehran, IR Iran
| | - Ali Ghobadi
- Research Institute for Islamic and Complementary Medicine, School of Iranian Traditional Medicine, Iran University of Medical Sciences, Tehran, IR Iran
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Hassan STS, Žemlička M. Plant-Derived Urease Inhibitors as Alternative Chemotherapeutic Agents. Arch Pharm (Weinheim) 2016; 349:507-22. [DOI: 10.1002/ardp.201500019] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2015] [Revised: 04/22/2016] [Accepted: 04/26/2016] [Indexed: 01/08/2023]
Affiliation(s)
- Sherif T. S. Hassan
- Faculty of Pharmacy; Department of Natural Drugs; University of Veterinary and Pharmaceutical Sciences Brno; Brno Czech Republic
| | - Milan Žemlička
- Department of Pharmacognosy and Botany; University of Veterinary Medicine and Pharmacy in Košice; Košice Slovak Republic
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Baltas N, Karaoglu SA, Tarakci C, Kolayli S. Effect of propolis in gastric disorders: inhibition studies on the growth of Helicobacter pylori and production of its urease. J Enzyme Inhib Med Chem 2016; 31:46-50. [PMID: 27233102 DOI: 10.1080/14756366.2016.1186023] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
There is considerable interest in alternative approaches to inhibit Helicobacter pylori (H. pylori) and thus treat many stomach diseases. Propolis is a pharmaceutical mixture containing many natural bioactive substances. The aim of this study was to use propolis samples to treat H. pylori. The anti-H. pylori and anti-urease activities of 15 different ethanolic propolis extracts (EPEs) were tested. The total phenolic contents and total flavonoid contents of the EPE were also measured. The agar-well diffusion assay was carried out on H. pylori strain J99 and the inhibition zones were measured and compared with standards. All propolis extracts showed high inhibition of H. pylori J99, with inhibition diameters ranging from 31.0 to 47.0 mm. Helicobacter pylori urease inhibitory activity was measured using the phenol-hypochlorite assay; all EPEs showed significant inhibition against the enzyme, with inhibition concentrations (IC50; mg/mL) ranging from 0.260 to 1.525 mg/mL. The degree of inhibition was related to the phenolic content of the EPE. In conclusion, propolis extract was found to be a good inhibitor that can be used in H. pylori treatment to improve human health.
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Affiliation(s)
| | - Sengul Alpay Karaoglu
- b Department of Biology , Faculty of Arts and Science, Recep Tayyip Erdogan University , Rize , Turkey , and
| | - Cemre Tarakci
- b Department of Biology , Faculty of Arts and Science, Recep Tayyip Erdogan University , Rize , Turkey , and
| | - Sevgi Kolayli
- c Department of Chemistry , Faculty of Science, Karadeniz Technical University , Trabzon , Turkey
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Sahin H. Honey as an apitherapic product: its inhibitory effect on urease and xanthine oxidase. J Enzyme Inhib Med Chem 2015; 31:490-4. [PMID: 25942364 DOI: 10.3109/14756366.2015.1039532] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
The aim of this study was to evaluate new natural inhibitor sources for the enzymes urease and xanthine oxidase (XO). Chestnut, oak and polyfloral honey extracts were used to determine inhibition effects of both enzymes. In addition to investigate inhibition, the antioxidant capacities of these honeys were determined using total phenolic content (TPC), ferric reducing antioxidant power (FRAP), and DPPH radical scavenging activity assays. Due to their high phenolic content, chestnut and oak honeys are found to be a powerful source for inhibition of both enzymes. Especially, oak honeys were efficient for urease inhibition with 0.012-0.021 g/mL IC50 values, and also chestnut honeys were powerful for XO inhibition with 0.028-0.039 g/mL IC50 values. Regular daily consumption of these honeys can prevent gastric ulcers deriving from Helicobacter pylori and pathological disorders mediated by reactive oxygen species.
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Affiliation(s)
- Huseyin Sahin
- a Giresun University, Espiye Vocational School , Espiye , Giresun , Turkey
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