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Yadav S, Pandey A, Mali SN. From lab to nature: Recent advancements in the journey of gastroprotective agents from medicinal chemistry to phytotherapy. Eur J Med Chem 2024; 272:116436. [PMID: 38704935 DOI: 10.1016/j.ejmech.2024.116436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Revised: 04/15/2024] [Accepted: 04/17/2024] [Indexed: 05/07/2024]
Abstract
Peptic ulcer, affecting 10 % of the global population, results from imbalances in gastric juice pH and diminished mucosal defences. Key underlying factors are non-steroidal anti-inflammatory drugs (NSAIDs) and Helicobacter pylori infection, undermining mucosal resistance. Traditional treatments like proton pump inhibitors (PPIs) and histamine-2 (H2) receptor antagonists exhibit drawbacks such as adverse effects, relapses, and drug interactions. This review extensively explores the ethnomedicinal, synthetic and pharmacological facets of various potential peptic ulcer treatments. Rigorous methodologies involving electronic databases, and chemical structure verification via 'PubChem' and 'SciFinder' enhance the review's credibility. The provided information, spanning medicinal insights to intricate pharmacological mechanisms, establishes a robust groundwork for future research and the development of plant-derived or synthetic molecules for peptic ulcers, offering a promising alternative to conventional therapies.
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Affiliation(s)
- Susmita Yadav
- Department of Pharmaceutical Sciences and Technology, Birla Institute of Technology, Mesra, Ranchi, Jharkhand, 835215, India
| | - Anima Pandey
- Department of Pharmaceutical Sciences and Technology, Birla Institute of Technology, Mesra, Ranchi, Jharkhand, 835215, India
| | - Suraj N Mali
- School of Pharmacy, D.Y. Patil University (Deemed to be University), Sector 7, Nerul, Navi Mumbai, 400706, India.
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2
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Onocha PA, Okpala EO, Ali MS, Rahman N, Zafar H, Oloyede GK, Nwozo SO, Lateef M. Partial syntheses of aromatic amides: their anti-urease potential and docking studies. J Biomol Struct Dyn 2023:1-12. [PMID: 37787574 DOI: 10.1080/07391102.2023.2263876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 09/21/2023] [Indexed: 10/04/2023]
Abstract
The aromatic amide: N-p-trans-coumaroyltyramine (1) was isolated for the first time from the stem bark of Celtis zenkeri (Ulmaceae). Its four new derivatives (1a-d) and previously reported diacetylated product (1e) have been synthesized and characterized spectroscopically followed by their in vitro screening for anti-urease potential. The diacetylated product (1e) was found to be the most potent inhibitor with an IC50 value of 19.5 ± 0.23 μM compared to thiourea used as standard (21.5 ± 0.47 μM). Furthermore, molecular docking studies were conducted revealing striking interactions of the active compounds with catalytically important residues such as His593, Ala636 and Asp633. Subsequently, the prime MM-GBSA calculations provided the ligand binding and strain energies. The molecular dynamic simulations validated the docked and post-docked complexes where compounds 1b, 1c, 1d and 1e remained stable throughout the simulation. This study provides insight into the N-p-trans-coumaroyltyramine derivatives (1b-e) that can block the substrate entry, thereby inhibiting the urease's catalytic activity. Hence, these hit compounds can proceed for further pre-clinical studies for drug discovery against urease.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Patricia Akpomedaye Onocha
- Natural Products/Medicinal Chemistry Unit, Department of Chemistry, University of Ibadan, Ibadan, Nigeria
| | | | - Muhammad Shaiq Ali
- H.E.J. Research Institute of Chemistry, International Centre for Chemical and Biological Sciences (ICCBS), University of Karachi, Karachi, Pakistan
| | - Noor Rahman
- H.E.J. Research Institute of Chemistry, International Centre for Chemical and Biological Sciences (ICCBS), University of Karachi, Karachi, Pakistan
| | - Humaira Zafar
- Dr. Panjwani Center for Molecular Medicine and Drug Research International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
| | - Ganiyat Kehinde Oloyede
- Natural Products/Medicinal Chemistry Unit, Department of Chemistry, University of Ibadan, Ibadan, Nigeria
| | - Sarah Oyenibe Nwozo
- Department of Biochemistry, Faculty of Basic Medical Sciences, University of Ibadan, Ibadan, Nigeria
| | - Mehreen Lateef
- Multi-Disciplinary Research Lab. Bahria University, Medical and Dental College, Karachi, Pakistan
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Frański R, Beszterda-Buszczak M. Comment on Villalva et al. Antioxidant, Anti-Inflammatory, and Antibacterial Properties of an Achillea millefolium L. Extract and Its Fractions Obtained by Supercritical Anti-Solvent Fractionation against Helicobacter pylori. Antioxidants 2022, 11, 1849. Antioxidants (Basel) 2023; 12:1226. [PMID: 37371956 DOI: 10.3390/antiox12061226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 04/21/2023] [Accepted: 06/01/2023] [Indexed: 06/29/2023] Open
Abstract
Villalva et al. evaluated the potential utility of an Achillea millefolium (yarrow) extract in the control of H. pylori infection. The agar-well diffusions bioassay was applied to determine the antimicrobial activity of yarrow extracts. The supercritical anti-solvent fractionation process of yarrow extract was made to give two different fractions with polar phenolic compounds and monoterpenes and sesquiterpenes, respectively. Phenolic compounds were identified by HPLC-ESIMS by using the accurate masses of [M-H]- ions and the characteristic product ions. However, some of the reported product ions seem to be disputable, as described below.
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Affiliation(s)
- Rafał Frański
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland
| | - Monika Beszterda-Buszczak
- Department of Food Biochemistry and Analysis, Poznań University of Life Sciences, Mazowiecka 48, 60-623 Poznań, Poland
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4
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Al-Rajhi AMH, Qanash H, Bazaid AS, Binsaleh NK, Abdelghany TM. Pharmacological Evaluation of Acacia nilotica Flower Extract against Helicobacter pylori and Human Hepatocellular Carcinoma In Vitro and In Silico. J Funct Biomater 2023; 14:jfb14040237. [PMID: 37103327 PMCID: PMC10143343 DOI: 10.3390/jfb14040237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 04/16/2023] [Accepted: 04/19/2023] [Indexed: 04/28/2023] Open
Abstract
The resistance of cancer and Helicobacter pylori to several drugs reflects a worldwide problem, and it has been the intention of numerous researchers to overcome this problem. Thus, in this study, Acacia nilotica fruits were subjected to HPLC analysis to detect their phenolic compounds and flavonoids. Moreover, A. nilotica's anti-H. pylori activity and its inhibitory activity against human hepatocellular carcinoma (HepG-2 cells) were reported. Various compounds with different concentrations, such as ferulic acid (5451.04 µg/mL), chlorogenic acid (4572.26 µg/mL), quercetin (3733.37 µg/mL), rutin (2393.13 µg/mL), gallic acid (2116.77 µg/mL), cinnamic acid (69.72 µg/mL), hesperetin (121.39 µg/mL) and methyl gallate (140.45 µg/mL), were detected. Strong anti-H. pylori activity at 31 mm was reported, compared to the positive control of the 21.67 mm inhibition zone. Moreover, the MIC and MBC were 7.8 µg/mL and 15.62 µg/mL, respectively, while the MIC and MBC of the positive control were 31.25 µg/mL. The concentration of MBC at 25%, 50% and 75% reflected H. pylori's anti-biofilm activity of 70.38%, 82.29% and 94.22%, respectively. Good antioxidant properties of the A. nilotica flower extract were documented at 15.63, 62.50, 250 and 1000 µg/mL, causing the DPPH scavenging percentages of 42.3%, 52.6%, 65.5% and 80.6%, respectively, with a IC50 of 36.74 µg/mL. HepG-2 cell proliferation was inhibited (91.26%) using 500 µg/mL of flower extract with an IC50 of 176.15 µg/mL, compared to an IC50 of 395.30 µg/mL used against human normal melanocytes. Molecular docking was applied to investigate ferulic acid with the H. pylori (4HI0) crystal structure to determine the best binding mode that interacted most energetically with the binding sites. Molecular docking indicated that ferulic acid was a proper inhibitor for the 4HI0 protein enzyme of H. pylori. A low energy score (-5.58 Kcal/mol) was recorded as a result of the interaction of ferulic acid with the residue's SER 139 active site caused by the O 29 atom, which was important for its antibacterial activity.
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Affiliation(s)
- Aisha M H Al-Rajhi
- Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
| | - Husam Qanash
- Department of Medical Laboratory Science, College of Applied Medical Sciences, University of Ha'il, P.O. Box 84428, Hail 55476, Saudi Arabia
| | - Abdulrahman S Bazaid
- Department of Medical Laboratory Science, College of Applied Medical Sciences, University of Ha'il, P.O. Box 84428, Hail 55476, Saudi Arabia
| | - Naif K Binsaleh
- Department of Medical Laboratory Science, College of Applied Medical Sciences, University of Ha'il, P.O. Box 84428, Hail 55476, Saudi Arabia
| | - Tarek M Abdelghany
- Botany and Microbiology Department, Faculty of Science, Al-Azhar University, Cairo 11725, Egypt
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Hosseinzadeh N, Nazari Montazer M, Mohammadi‐Khanaposhtani M, Valizadeh Y, Amanlou M, Mahdavi M. Rational Design, Synthesis, Docking Simulation, and ADMET Prediction of Novel Barbituric‐hydrazine‐phenoxy‐1,2,3‐triazole‐acetamide Derivatives as Potent Urease Inhibitors. ChemistrySelect 2023. [DOI: 10.1002/slct.202203297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Nouraddin Hosseinzadeh
- Laboratory of Organic Synthesis and Natural Products Department of Chemistry Sharif University of Technology Tehran Iran
| | - Mohammad Nazari Montazer
- Department of Medicinal Chemistry Faculty of Pharmacy, Tehran University of Medical Sciences Tehran Iran
| | - Maryam Mohammadi‐Khanaposhtani
- Cellular and Molecular Biology Research Center Health Research Institute Babol University of Medical Sciences Babol Iran
| | - Yousef Valizadeh
- Endocrinology and Metabolism Research Center Endocrinology and Metabolism Clinical Sciences Institute Tehran University of Medical Sciences Tehran Iran
| | - Massoud Amanlou
- Department of Medicinal Chemistry Faculty of Pharmacy, Tehran University of Medical Sciences Tehran Iran
| | - Mohammad Mahdavi
- Endocrinology and Metabolism Research Center Endocrinology and Metabolism Clinical Sciences Institute Tehran University of Medical Sciences Tehran Iran
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Al-Rooqi MM, Mughal EU, Raja QA, Hussein EM, Naeem N, Sadiq A, Asghar BH, Moussa Z, Ahmed SA. Flavonoids and related privileged scaffolds as potential urease inhibitors: a review. RSC Adv 2023; 13:3210-3233. [PMID: 36756398 PMCID: PMC9869662 DOI: 10.1039/d2ra08284e] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Accepted: 01/16/2023] [Indexed: 01/25/2023] Open
Abstract
Infections caused by bacteria are a significant issue on a global scale, and imperative action is required to discover novel or improved therapeutic agents. Flavonoids are a class of plant-derived compounds that have a variety of potentially useful bioactivities. These activities include immediate antimicrobial properties, synergistic effect with antimicrobials, ferocious repression of pathogenicity, anti-urease activity etc. This review summarizes current studies concerning anti-urease actions of flavonoids as well as structural-activity correlation investigations of the flavonoid core structure. It is possible that if researchers investigate the many structural changes that may be made in flavonoid rings, they'll be able to build up novel compounds that have powerful and effective anti-urease properties.
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Affiliation(s)
- Munirah M Al-Rooqi
- Department of Chemistry, Faculty of Applied Sciences, Umm Al-Qura University 21955 Makkah Saudi Arabia
| | | | | | - Essam M Hussein
- Department of Chemistry, Faculty of Applied Sciences, Umm Al-Qura University 21955 Makkah Saudi Arabia
- Chemistry Department, Faculty of Science, Assiut University 71516 Assiut Egypt
| | - Nafeesa Naeem
- Department of Chemistry, University of Gujrat Gujrat-50700 Pakistan
| | - Amina Sadiq
- Department of Chemistry, Government College Women University Sialkot-51300 Pakistan
| | - Basim H Asghar
- Department of Chemistry, Faculty of Applied Sciences, Umm Al-Qura University 21955 Makkah Saudi Arabia
| | - Ziad Moussa
- Department of Chemistry, College of Science, United Arab Emirates University P.O. Box 15551, Al Ain Abu Dhabi United Arab Emirates
| | - Saleh A Ahmed
- Department of Chemistry, Faculty of Applied Sciences, Umm Al-Qura University 21955 Makkah Saudi Arabia
- Chemistry Department, Faculty of Science, Assiut University 71516 Assiut Egypt
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7
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Alomar HA, Elkady WM, Abdel-Aziz MM, Ibrahim TA, Fathallah N. Anti- Heliobacter pylori and Anti-Inflammatory Potential of Salvia officinalis Metabolites: In Vitro and In Silico Studies. Metabolites 2023; 13:metabo13010136. [PMID: 36677061 PMCID: PMC9865027 DOI: 10.3390/metabo13010136] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 01/08/2023] [Accepted: 01/14/2023] [Indexed: 01/18/2023] Open
Abstract
Due to its rising antibiotic resistance and associated inflammations, Helicobacter pylori poses a challenge in modern medicine. Salvia officinalis, a member of the Lamiaceae family, is a promising medicinal herb. In this regard, a phytochemical screening followed by GC-MS and LC-MS was done to evaluate the chemical profile of the total ethanolic extract (TES) and the essential oil, respectively. The anti-H. pylori and the anti-inflammatory activities were evaluated by a micro-well dilution technique and COX-2 inhibition assay. Potential anti-H. pylori inhibitors were determined by an in silico study. The results revealed that the main metabolites were flavonoids, sterols, volatile oil, saponins, and carbohydrates. The LC-MS negative ionization mode demonstrated 12 compounds, while GC-MS showed 21 compounds. Carnosic acid (37.66%), epirosmanol (20.65%), carnosol1 (3.3%), and 12-O-methyl carnosol (6.15%) were predominated, while eucalyptol (50.04%) and camphor (17.75%) were dominant in LC-MS and GC-MS, respectively. TES exhibited the strongest anti-H. pylori activity (3.9 µg/mL) asymptotic to clarithromycin (0.43 µg/mL), followed by the oil (15.63 µg/mL). Carnosic acid has the best-fitting energy to inhibit H. pylori (-46.6769 Kcal/mol). TES showed the highest reduction in Cox-2 expression approaching celecoxib with IC50 = 1.7 ± 0.27 µg/mL, followed by the oil with IC50 = 5.3 ± 0.62 µg/mL. Our findings suggest that S. officinalis metabolites with anti-inflammatory capabilities could be useful in H. pylori management. Further in vivo studies are required to evaluate and assess its promising activity.
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Affiliation(s)
- Hatun A. Alomar
- Pharmacology and Toxicology Department, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Wafaa M. Elkady
- Department of Pharmacognosy and Medicinal Plants, Faculty of Pharmacy, Future University in Egypt, Cairo 11835, Egypt
| | - Marwa M. Abdel-Aziz
- Regional Center for Mycology and Biotechnology (RCMB), Al-Azhar University, Cairo 11651, Egypt
| | - Taghreed A. Ibrahim
- Department of Pharmacognosy, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
- Department of Pharmacognosy, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt
| | - Noha Fathallah
- Department of Pharmacognosy and Medicinal Plants, Faculty of Pharmacy, Future University in Egypt, Cairo 11835, Egypt
- Correspondence:
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Al-Eitan L, Sendyani S, Alnimri M. Applications of the One Health concept: Current Status in the Middle East. JOURNAL OF BIOSAFETY AND BIOSECURITY 2023. [DOI: 10.1016/j.jobb.2023.01.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
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9
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Lammari N, Louaer M, Louaer O, Bensouici C, Zermane A, Elaissari A, Meniai AH. Nanoparticles encapsulating sesame seeds (Sesamum indicum) oil: Physicochemical, antioxidant and enzymatic inhibition properties. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.104003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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10
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Mall SK, Yadav T, Waziri A, Alam MS. Treatment opportunities with Fernandoa adenophylla and recent novel approaches for natural medicinal phytochemicals as a drug delivery system. EXPLORATION OF MEDICINE 2022. [DOI: 10.37349/emed.2022.00111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Fernandoa adenophylla (FA, Heterophragma adenophyllum) is a plant, cultivated throughout Africa and Southeast Asia. It contains potent phytochemicals such as novel naphthoquinones, their derivatives (peshwaraquinone, dilapachone, adenophyllone, indadone, and lapachol), and triterpenoids [ursolic acid (UA), β-sitosterol (BS), α-amyrin, and oleanolic acid (OA)] that have been assessed and reported to show potential pharmacological activities. The crude extract obtained from the plant has been investigated for certain pharmacological activities such as antibacterial, antifungal, anti-tubercular (TB), antihypertensive, and leishmanicidal activity. A novel drug delivery systems (NDDS) is the latest technique that combines innovative development, formulations, new technology, and methodologies for the safe delivery of pharmaceutical substances in the body. The present study reports the possible treatment opportunities of FA and recent possible novel drug delivery approaches for the natural medicinal phytochemicals.
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Affiliation(s)
- Sangeet Kumar Mall
- NIMS Institute of Pharmacy, NIMS University, Rajasthan, Jaipur 303121, India
| | - Tejpal Yadav
- Department of Pharmaceutics, NIMS Institute of Pharmacy, NIMS University, Rajasthan, Jaipur 303121, India
| | - Aafrin Waziri
- Department of Biotechnology, University School of Biotechnology, Guru Gobind Singh Indraprastha University, Delhi 110078, India
| | - Md Sabir Alam
- Department of Pharmaceutics, SGT College of Pharmacy, SGT University Gurugram, Delhi-NCR, Haryana 122505, India
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Nisar R, Ahmad S, Khan KUR, Sherif AE, Alasmari F, Almuqati AF, Ovatlarnporn C, Khan MA, Umair M, Rao H, Ghalloo BA, Khurshid U, Dilshad R, Nassar KS, Korma SA. Metabolic Profiling by GC-MS, In Vitro Biological Potential, and In Silico Molecular Docking Studies of Verbena officinalis. Molecules 2022; 27:molecules27196685. [PMID: 36235221 PMCID: PMC9573548 DOI: 10.3390/molecules27196685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 10/03/2022] [Accepted: 10/05/2022] [Indexed: 11/05/2022] Open
Abstract
Verbena officinalis L. is a traditionally important medicinal herb that has a rich source of bioactive phytoconstituents with biological benefits. The objective of this study was to assess the metabolic profile and in vitro biological potential of V. officinalis. The bioactive phytoconstituents were evaluated by preliminary phytochemical studies, estimation of polyphenolic contents, and gas chromatography-mass spectrometry (GC-MS) analysis of all fractions (crude methanolic, n-hexane, ethyl acetate, and n-butanol) of V. officinalis. The biological investigation was performed by different assays including antioxidant assays (DPPH, ABTS, CUPRAC, and FRAP), enzyme inhibition assays (urease and α-glucosidase), and hemolytic activity. The ethyl acetate extract had the maximum concentration of total phenolic and total flavonoid contents (394.30 ± 1.09 mg GAE·g-1 DE and 137.35 ± 0.94 mg QE·g-1 DE, respectively). Significant antioxidant potential was observed in all fractions by all four antioxidant methods. Maximum urease inhibitory activity in terms of IC50 value was shown by ethyl acetate fraction (10 ± 1.60 µg mL-1) in comparison to standard hydroxy urea (9.8 ± 1.20 µg·mL-1). The n-hexane extract showed good α-glucosidase inhibitory efficacy (420 ± 20 µg·mL-1) as compared to other extract/fractions. Minimum hemolytic activity was found in crude methanolic fraction (6.5 ± 0.94%) in comparison to positive standard Triton X-100 (93.5 ± 0.48%). The GC-MS analysis of all extract/fractions of V. officinalis including crude methanolic, n-hexane, ethyl acetate, and n-butanol fractions, resulted in the identification of 24, 56, 25, and 9 bioactive compounds, respectively, with 80% quality index. Furthermore, the bioactive compounds identified by GC-MS were analyzed using in silico molecular docking studies to determine the binding affinity between ligands and enzymes (urease and α-glucosidase). In conclusion, V. officinalis possesses multiple therapeutical potentials, and further research is needed to explore its use in the treatment of chronic diseases.
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Affiliation(s)
- Rabia Nisar
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan
- Department of Chemistry and Physics, College of Sciences and Mathematics, Arkansas State University, Jonesboro, AR 72404, USA
| | - Saeed Ahmad
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan
| | - Kashif-ur-Rehman Khan
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan
- Correspondence: (K.-u.-R.K.); (M.U.); Tel.: +92-33-6670-8638 (K.-u.-R.K.); +86-177-1291-5202 (M.U.)
| | - Asmaa E. Sherif
- Department of Pharmacognosy, College of Pharmacy, Prince Sattam bin Abdul Aziz University, Alkharj 11942, Saudi Arabia
- Department of Pharmacognosy, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
| | - Fawaz Alasmari
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Afaf F. Almuqati
- Department of Pharmaceutical Chemistry, College of Pharmacy, University of Hafr Al-Batin, Hafr Al-Batin 31991, Saudi Arabia
| | - Chitchamai Ovatlarnporn
- Department of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences, Prince of Songkla University, Hat Yai 90110, Thailand
| | - Mohsin Abbas Khan
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan
| | - Muhammad Umair
- Department of Food Science and Engineering, College of Chemistry and Engineering, Shenzhen University, Shenzhen 518060, China
- Correspondence: (K.-u.-R.K.); (M.U.); Tel.: +92-33-6670-8638 (K.-u.-R.K.); +86-177-1291-5202 (M.U.)
| | - Huma Rao
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan
| | - Bilal Ahmad Ghalloo
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan
| | - Umair Khurshid
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan
| | - Rizwana Dilshad
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan
| | - Khaled S. Nassar
- Department of Food, Dairy Science and Technology, Faculty of Agriculture, Damanhour University, Damanhour 22516, Egypt
| | - Sameh A. Korma
- Department of Food Science, Faculty of Agriculture, Zagazig University, Zagazig 44519, Egypt
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China
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Ali N, Naz I, Ahmed S, Mohsin SA, Kanwal N, Fatima H, Hussain S. Polarity-guided phytochemical extraction, polyphenolic characterization, and multimode biological evaluation of Seriphidium kurramense (Qazilb.) Y. R. Ling. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.104114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
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13
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Jeong SY, Na MW, Park EC, Kim JC, Kang DM, Hamishehkar H, Ahn MJ, Kim JK, Kim KH. Labdane-type Diterpenes from Pinus eldarica Needles and Their Anti- Helicobacter pylori Activity. ACS OMEGA 2022; 7:29502-29507. [PMID: 36033661 PMCID: PMC9404486 DOI: 10.1021/acsomega.2c04147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Accepted: 08/05/2022] [Indexed: 06/15/2023]
Abstract
Pinus eldarica is a medicinal tree used in traditional herbal medicine for the treatment of bronchial asthma and various skin diseases. As part of our ongoing search for bioactive phytochemicals with novel structures in natural products, we performed a phytochemical analysis of the methanol (MeOH) extract from P. eldarica needles collected in Iran. Phytochemical investigation of the MeOH extract, aided by liquid chromatography-mass spectrometry-based analysis, resulted in the isolation and identification of three labdane-type diterpenes (1-3), including a new and relatively unique norlabdane-type diterpene with a peroxide moiety, eldaricoxide A (1). The chemical structures of the isolated labdane-type diterpenes were elucidated by analyzing the spectroscopic data from 1D and 2D NMR and high-resolution electrospray ionization-mass spectrometry. The absolute configuration of eldaricoxide A (1) was established by employing a computational method, including electronic circular dichroism calculation and specific optical rotation. An anti-Helicobacter pylori test was conducted, where compound 3 exhibited the most potent antibacterial activity against H. pylori strain 51, inducing 72.7% inhibition (MIC50 value of 92 μM), whereas eldaricoxide A (1) exhibited moderate antibacterial activity against H. pylori strain 51, inducing 54.5% inhibition (MIC50 value of 95 μM). These findings demonstrated that the identified bioactive labdane-type diterpenes 1 and 3 can be applied in the development of novel antibiotics against H. pylori for the treatment of gastric and duodenal ulcers.
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Affiliation(s)
- Se Yun Jeong
- School
of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Myung Woo Na
- School
of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Eon Chung Park
- School
of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Jin-Chul Kim
- KIST
Gangneung Institute of Natural Products, Natural Product Informatics
Research Center, Gangneung 25451, Republic of Korea
| | - Dong-Min Kang
- College
of Pharmacy and Research Institute of Pharmaceutical Sciences, Gyeongsang National University, Jinju 52828, Republic of Korea
| | - Hamed Hamishehkar
- Drug
Applied Research Center, Tabriz University
of Medical Sciences, Tabriz 51656-65811, Iran
| | - Mi-Jeong Ahn
- College
of Pharmacy and Research Institute of Pharmaceutical Sciences, Gyeongsang National University, Jinju 52828, Republic of Korea
| | - Jung Kyu Kim
- School
of Chemical Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Ki Hyun Kim
- School
of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
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14
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Bakhouche I, Boubellouta T, Aliat T, Gali L, Bellik Y. HPLC-DAD profiling, enzyme inhibitory, antihemolytic, and photoprotective activities of Limonium delicatulum leaf extract. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2022. [DOI: 10.1016/j.bcab.2022.102438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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15
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Na M, Jeong SY, Ko YJ, Kang DM, Pang C, Ahn MJ, Kim KH. Chemical Investigation of Tetradium ruticarpum Fruits and Their Antibacterial Activity against Helicobacter pylori. ACS OMEGA 2022; 7:23736-23743. [PMID: 35847243 PMCID: PMC9280968 DOI: 10.1021/acsomega.2c02380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The fruit of Tetradium ruticarpum, known as Evodiae Fructus, is a traditional herbal medicine used to treat gastric and duodenal ulcers, vomiting, and diarrhea. The traditional usage can be potentially associated with the antibacterial activity of T. ruticarpum fruits against Helicobacter pylori. However, so far, the antibacterial activity of T. ruticarpum fruits and antibacterial components against H. pylori has not been investigated despite the traditional folk use. The current study was conducted to investigate the bioactive chemical components of T. ruticarpum fruits and evaluate their antibacterial activity against H. pylori. Phytochemical investigation of the EtOH extract of T. ruticarpum fruits led to the isolation and identification of nine compounds (1-9), including phellolactone (1), the absolute configuration of which has not yet been determined. The chemical structures of the isolated compounds were elucidated by analyzing the spectroscopic data from one-dimensional (1D) and two-dimensional (2D) NMR and high-resolution electrospray ionization mass spectrometry (HR-ESIMS) experiments. Specifically, the absolute configuration of compound 1 was established by the application of computational methods, including electronic circular dichroism (ECD) calculation and the NOE/ROE-based interproton distance measurement technique via peak amplitude normalization for the improved cross-relaxation (PANIC) method. In the anti-H. pylori activity test, compound 3 showed the most potent antibacterial activity against H. pylori strain 51, with 94.4% inhibition (MIC50 and MIC90 values of 22 and 50 μM, respectively), comparable to that of metronidazole (97.0% inhibition, and MIC50 and MIC90 values of 17 and 46 μM, respectively). Moreover, compound 5 exhibited moderate antibacterial activity against H. pylori strain 51, with 58.6% inhibition (MIC50 value of 99 μM), which was higher than that of quercetin (34.4% inhibition) as a positive control. Based on the bioactivity results, we also analyzed the structure-activity relationship of the anti-H. pylori activity. Conclusion: These findings demonstrated that T. ruticarpum fruits had antibacterial activity against H. pylori and could be used in the treatment of gastric and duodenal ulcers. Meanwhile, the active compound, 1-methyl-2-(8E)-8-tridecenyl-4(1H)-quinolinone (3), identified herein also indicated the potential application in the development of novel antibiotics against H. pylori.
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Affiliation(s)
- Myung
Woo Na
- School
of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Se Yun Jeong
- School
of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Yoon-Joo Ko
- Laboratory
of Nuclear Magnetic Resonance, National Center for Inter-University
Research Facilities (NCIRF), Seoul National
University, Gwanak-gu, Seoul 08826, Republic
of Korea
| | - Dong-Min Kang
- College
of Pharmacy and Research Institute of Pharmaceutical Sciences, Gyeongsang National University, Jinju 52828, Republic of Korea
| | - Changhyun Pang
- School
of Chemical Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Mi-Jeong Ahn
- College
of Pharmacy and Research Institute of Pharmaceutical Sciences, Gyeongsang National University, Jinju 52828, Republic of Korea
| | - Ki Hyun Kim
- School
of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
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16
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A new approach against Helicobacter pylori using plants and its constituents: A review study. Microb Pathog 2022; 168:105594. [DOI: 10.1016/j.micpath.2022.105594] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 05/11/2022] [Accepted: 05/15/2022] [Indexed: 02/07/2023]
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17
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Rashid HM, Mahmod AI, Afifi FU, Talib WH. Antioxidant and Antiproliferation Activities of Lemon Verbena (Aloysia citrodora): An In Vitro and In Vivo Study. PLANTS 2022; 11:plants11060785. [PMID: 35336667 PMCID: PMC8951487 DOI: 10.3390/plants11060785] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 03/09/2022] [Accepted: 03/12/2022] [Indexed: 02/07/2023]
Abstract
Aloysia citrodora (Verbenaceae) is traditionally used to treat various diseases, including bronchitis, insomnia, anxiety, digestive, and heart problems. In this study, this plant’s antioxidant and anti-proliferation effects were evaluated. In addition to volatiles extraction, different solvent extracts were prepared. The GC-MS, LC-MS analysis and the Foline-Ciocalteu (F-C) method were used to investigate the phytochemical components of the plant. MTT assay was used to measure the antiproliferative ability for each extract. Antioxidant activity was determined using the 2,2-diphenylpicrylhydrazyl (DPPH) assay. In in vivo anti-proliferation experiments, Balb/C mice were inoculated with tumor cells and IP-injected with ethyl acetate extract of A. citrodora. After treatment, a significant reduction in tumor size (57.97%) and undetected tumors (44.44%) were obtained in treated mice, demonstrating the antiproliferative efficacy of the ethyl acetate extract. Besides, ethanol extract revealed the most potent radical scavenging effect. The findings of this study displayed that A. citrodora has promising cytotoxic and antioxidant activities. Still, further testing is required to investigate the extract’s chemical composition to understand its mechanisms of action.
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Affiliation(s)
- Hasan M. Rashid
- Department of Clinical Pharmacy and Therapeutics, Applied Science Private University, Amman 11931, Jordan; (H.M.R.); (A.I.M.)
| | - Asma Ismail Mahmod
- Department of Clinical Pharmacy and Therapeutics, Applied Science Private University, Amman 11931, Jordan; (H.M.R.); (A.I.M.)
| | - Fatma U. Afifi
- Department of Pharmaceutical Chemistry and Pharmacognosy, Applied Science Private University, Amman 11931, Jordan; or
| | - Wamidh H. Talib
- Department of Clinical Pharmacy and Therapeutics, Applied Science Private University, Amman 11931, Jordan; (H.M.R.); (A.I.M.)
- Correspondence:
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18
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TAŞKIN T, KAHVECİOĞLU D, TÜRKOĞLU EA, DOĞAN A, KUZU M. In vitro Biological Activities of Different Extracts from Alcea dissecta. CLINICAL AND EXPERIMENTAL HEALTH SCIENCES 2022. [DOI: 10.33808/clinexphealthsci.787845] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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19
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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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20
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Rana MA, Mahmood R, Ali S. Soil urease inhibition by various plant extracts. PLoS One 2021; 16:e0258568. [PMID: 34648559 PMCID: PMC8516312 DOI: 10.1371/journal.pone.0258568] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Accepted: 10/01/2021] [Indexed: 12/26/2022] Open
Abstract
Urea is the most popular and widely used nitrogenous fertilizer. High soil urease activity rapidly hydrolyses applied urea to ammonia which contributes to soil nitrogen (N) losses and reduces N use efficiency of crop plants. The ammonia losses can be minimized by the inhibition of soil urease activity which has been explored using various potential chemical inhibitors. However, the soil urease activity inhibition potential of plant extracts is rarely explored to date. In the present study, extracts of 35 plant materials were taken and evaluated against jack bean urease. Eleven extracts, showing >50% jack bean urease inhibition, were selected and further investigated in 13 soils collected from various districts of Punjab, Pakistan. Interestingly, except Capsicum annum, Melia azedarach, Citrus reticulata and Quercus infectoria, the plant extracts showed urease inhibition activities in soils, the extent of which was lower as compared to that observed in jack bean urease though. Maximum urea hydrolysis inhibition (70%) was noted with Vachellia nilotica which was 40% more than that of hydroquinone (50%) followed by that of Eucalyptus camaldulensis (24%). The extracts of V. nilotica and E. camaldulensis were coated on urea and applied to soil in the next step. At 21st day, 239% and 116% more urea-N was recovered from soil treated with V. nilotica and E. camaldulensis extracts coated urea, respectively, as compared to uncoated urea. Conclusively, these results indicated that the coating of V. nilotica and E. camaldulensis extracts on urea prills prolonged urea persistence in soil owing to minimum urea hydrolysis, probably, the extracts of V. nilotica and E. camaldulensis showed their urease inhibition potential. The results of this study provide a base line for the identification of new soil urease inhibitor compounds from plant materials in future.
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Affiliation(s)
| | - Rashid Mahmood
- Department of Soil Science, University of the Punjab, Lahore, Pakistan
| | - Sajid Ali
- Department of Agronomy, University of the Punjab, Lahore, Pakistan
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21
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Iftikhar N, Chatha SAS, Ahmad T, Ali Q, Hussain AI, Rathore HA. Fagonia arabica L.: A review of its phytochemistry, pharmacology and traditional uses. Comb Chem High Throughput Screen 2021; 25:1187-1199. [PMID: 34554901 DOI: 10.2174/1386207325666210923120957] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Revised: 08/06/2021] [Accepted: 08/29/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND Fagonia arabica, belongs to family Zygophyllaceae, is a medicinal plant, widely distributed in the desert areas of the world including Saudi Arabia, Pakistan, India and South Africa. The present review aims to explore the published information on the traditional uses, ethnobotanical knowledge, phytochemistry and various biological activities like antioxidant, antimicrobial, thrombolytic activities and anticoagulant effects of Fagonia arabica with critical analysis on the gaps and future perspectives. METHOD A literature survey was performed by searching the digital libraries and the scientific databases including Scopus, Google Scholar, SciFinder, ACS, Web of Science and published books. RESULTS Fagonia arabica plant has been reported to have a wide range of traditional uses in sore mouth, smallpox, hematological, neurological, endocrinological, inflammatory, cooling agent in stomatitis, vertigo and endothermic reaction in the body. Several bioactive constituents including glycosides, flavonoids, terpenoids, saponins, alkaloids and trace elements were recorded from Fagonia arabica plant. The isolation and identification of two flavonoid glycosides (kaempferol-7-O-rhamnoside and acacetin-7-O-rhamnoside) were also reported. Fagonia arabica has been studied for its wide range of biological activities, which include antioxidant, antimicrobial, cardioprotective and anticoagulant. CONCLUSION It is apparent from the literature that Fagonia arabica plant possesses a wide range of medicinal and pharmacological uses and has been studied for its various pharmacological activities and medicinal applications. Critical analysis reveals that the plant has the huge potential for pharmaceutical and pharmacological applications.
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Affiliation(s)
- Neelam Iftikhar
- Natural Product and Synthetic Chemistry Lab, Department of Chemistry, Government College University Faisalabad, Pakistan
| | - Shahzad Ali Shahid Chatha
- Natural Product and Synthetic Chemistry Lab, Department of Chemistry, Government College University Faisalabad, Pakistan
| | - Tanveer Ahmad
- Natural Product and Synthetic Chemistry Lab, Department of Chemistry, Government College University Faisalabad, Pakistan
| | - Qasim Ali
- Department of Botany, Government College University Faisalabad, Pakistan
| | - Abdullah Ijaz Hussain
- Natural Product and Synthetic Chemistry Lab, Department of Chemistry, Government College University Faisalabad, Pakistan
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22
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Moghadam MT, Chegini Z, Norouzi A, Dousari AS, Shariati A. Three-Decade Failure to the Eradication of Refractory Helicobacter pylori Infection and Recent Efforts to Eradicate the Infection. Curr Pharm Biotechnol 2021; 22:945-959. [PMID: 32767919 DOI: 10.2174/1389201021666200807110849] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 06/30/2020] [Accepted: 07/04/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Helicobacter pylori causes dangerous and deadly diseases such as gastric cancer and duodenal ulcers. Eradication and treatment of this bacterium are very important due to the deadly diseases caused by H. pylori and the high cost of treatment for countries. METHODS Thus, we present a complete list of the most important causes of failure in the treatment and eradication of H. pylori, and address new therapeutic methods that may be effective in controlling this bacterium in the future. RESULTS Many efforts have been made to control and eradicate this bacterium over the years, but no success has been achieved since its eradication is a complex process affected by the bacterial properties and host factors. Previous studies have shown that various factors are involved in the failure to eradicate H. pylori, such as new genotypes of the bacterium with higher pathogenicity, inappropriate patient cooperation, mutations, biofilm formation and dormant forms that cause antibiotic resistance, acidic stomach pH, high bacterial load, smoking, immunosuppressive features and intracellular occurrence of H. pylori. On the other hand, recent studies reported that the use of probiotics, nanoparticles, antimicrobial peptides, natural product and vaccines can be helpful in the treatment and eradication of H. pylori infections. CONCLUSION Eradication of H. pylori is crucial for the treatment of important diseases such as gastric cancer. Therefore, it seems that identifying the failure causes of treating this bacterium can be helpful in controlling the infections. Besides, further studies on new therapeutic strategies may help eradicate H. pylori in the future.
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Affiliation(s)
- Majid T Moghadam
- Department of Microbiology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Zahra Chegini
- Student Research Committee, Iran University of Medical Sciences, Tehran, Iran
| | - Amin Norouzi
- Department of Microbiology and Virology, School of Medicine, Kerman University of Medical Sciences, Kerman, Iran
| | | | - Aref Shariati
- Department of Microbiology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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23
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Ngan LTM, Tan MT, Hoang NVM, Thanh DT, Linh NTT, Hoa TTH, Nuong NTM, Hieu TT. Antibacterial activity of Hibiscus rosa-sinensis L. red flower against antibiotic-resistant strains of Helicobacter pylori and identification of the flower constituents. ACTA ACUST UNITED AC 2021; 54:e10889. [PMID: 34008759 PMCID: PMC8130102 DOI: 10.1590/1414-431x2020e10889] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Accepted: 02/02/2021] [Indexed: 01/22/2023]
Abstract
Utilization of plant resources for treatment of Helicobacter pylori infections is one of the appealing approaches as rapid emergence of antibiotic-resistant strains is occurring throughout the world. Ethanol extract and its fractions from Hibiscus rosa-sinensis red flower were assessed for antibacterial and urease inhibitory activities towards forty-three clinical strains and two reference strains of H. pylori. The ethyl acetate fraction exhibited the most potent bacteriostatic activity with minimum inhibitory concentrations (MICs) of 0.2-0.25 mg/mL and minimum bactericidal concentrations (MBCs) of 1.25-1.5 mg/mL against all test strains, including forty-three strains resistant to one to four antibiotics, azithromycin (MICs, 8-256 µg/mL), erythromycin (MICs, 8-128 µg/mL), levofloxacin (MICs, 8-256 µg/mL), and/or metronidazole (MICs, 8-256 µg/mL). The fraction had similar antibacterial activities toward these test strains suggesting the preparation and the antibiotics do not have a common mechanism of anti-H. pylori activity. The fraction also had stronger effects on biofilm formation, morphological conversion, and urease activity of H. pylori than the other fractions and the ethanol extract. These flower preparations were non-toxic to three human cell lines, and nine compounds were also isolated and identified from the ethyl acetate fraction. In vivo research needs to be conducted to confirm the potential usefulness of H. rosa-sinensis flower and its constituents for effective prevention and treatment of H. pylori disease.
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Affiliation(s)
- L T M Ngan
- Faculty of Biology and Biotechnology, VNUHCM-University of Science, Ho Chi Minh City, Vietnam
| | - M T Tan
- Faculty of Biology and Biotechnology, VNUHCM-University of Science, Ho Chi Minh City, Vietnam
| | - N V M Hoang
- Oxford University Clinical Research Unit, Hospital for Tropical Diseases, Ho Chi Minh City, Vietnam
| | - D T Thanh
- Faculty of Biology and Biotechnology, VNUHCM-University of Science, Ho Chi Minh City, Vietnam.,Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, Vietnam
| | - N T T Linh
- Faculty of Chemistry, VNUHCM-University of Science, Ho Chi Minh City, Vietnam
| | - T T H Hoa
- Central Laboratory for Analysis, VNUHCM-University of Science, Ho Chi Minh City, Vietnam
| | - N T M Nuong
- Faculty of Biology and Biotechnology, VNUHCM-University of Science, Ho Chi Minh City, Vietnam
| | - T T Hieu
- Faculty of Biology and Biotechnology, VNUHCM-University of Science, Ho Chi Minh City, Vietnam
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24
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Zahid R, Akram M, Riaz M, Munir N, Shehzad M. Phytotherapeutic modalities for the management of Helicobacter pylori associated peptic ulcer. EUR J INFLAMM 2020. [DOI: 10.1177/2058739220968308] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Due to an imbalance between aggressive factors known as hydrochloric acid (HCl), pepsin, leukotrienes, refluxed bile, defensive factors and reactive oxygen species, the peptic ulcer is formed in the stomach and duodenum which mostly include the function of prostaglandins, mucus bicarbonate barrier, enzymatic antioxidants, and some growth factors. H. pylori infection remained one of the considerable causes of peptic ulcer as it caused hypochlorhydria and struck off the defense mechanism of the stomach. The nonsteroidal anti-inflammatory drugs (NSAIDs) and stress are the most prevailing causes of peptic ulcer disease. Lack of physical exercise, little rest and due to poor leisure cause the peptic ulcer disease. Candies, chocolate, coffee, cigarettes, stress, and alcohol are the cause of peptic ulceration and suppression of acid in the stomach due to the utilization of antacid medication. Most of the ancient medical practices in the traditional alternative medicinal system include Unani, Ayurveda, Siddha, Homeopathy, Naturopathy, Chinese customary medicine, African conventional medicine, and Native American medicine. Without a hostile effect, the rate of curing the disease is the significance of natural products research. Peptic ulcer disease is the widespread nature of peptic ulcer in all class of population, which mostly may be due to rapidly changing the food habits and stress, causing the imbalance between gastric offensive and defensive factors. Curcuma longa is the most effective plant for the cure of peptic ulcer. Curcuma longa has anti-inflammatory and antioxidant activity. Curcuma longa remarkably reduces the level of inflammatory mediator (IL1) and (TNF) which was increased during the formation of an ulcer. In the rhizome of Curcuma longa, yellow pigment is present and widely used for the treatment of ulcer and decrease the inflammatory response. Symptoms include abdominal pain after taking a meal, nausea, vomiting, Anorexia and lose weight.
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Affiliation(s)
- Rabia Zahid
- Department of Eastern Medicine, Government College University Faisalabad, Faisalabad, Pakistan
| | - Muhammad Akram
- Department of Eastern Medicine, Government College University Faisalabad, Faisalabad, Pakistan
| | - Muhammad Riaz
- Department of Allied Health Sciences, Sargodha Medical College, University of Sargodha, Sargodha, Pakistan
| | - Naveed Munir
- Department of Biochemistry, Government College University Faisalabad, Faisalabad, Pakistan
| | - Muhammad Shehzad
- Department of Eastern Medicine, Government College University Faisalabad, Faisalabad, Pakistan
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25
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Anti-urease and cytotoxic activity of 1-Nitro-2-phenylethane and Nerolidol; two major compounds isolated from the seeds of Dennettia tripetala. Med Chem Res 2020. [DOI: 10.1007/s00044-020-02607-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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26
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Fiori-Duarte AT, Rodrigues RP, Kitagawa RR, Kawano DF. Insights into the Design of Inhibitors of the Urease Enzyme - A Major Target for the Treatment of Helicobacter pylori Infections. Curr Med Chem 2020; 27:3967-3982. [PMID: 30827224 DOI: 10.2174/0929867326666190301143549] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Revised: 02/01/2019] [Accepted: 02/19/2019] [Indexed: 12/12/2022]
Abstract
Expressed by a variety of plants, fungi and bacteria, the urease enzyme is directly associated with the virulence factor of many bacteria, including Helicobacter pylori, a gram-negative bacterium related to several gastrointestinal diseases and responsible for one of the most frequent bacterial infections throughout the world. The Helicobacter pylori Urease (HPU) is a nickel-dependent metalloenzyme expressed in response to the environmental stress caused by the acidic pH of the stomach. The enzyme promotes the increase of gastric pH through acid neutralization by the products of urea hydrolysis, then critically contributing to the colonization and pathogenesis of the microorganism. At the same time, standard treatments for Helicobacter pylori infections have limitations such as the increasing bacterial resistance to the antibiotics used in the clinical practice. As a strategy for the development of novel treatments, urease inhibitors have proved to be promising, with a wide range of chemical compounds, including natural, synthetic and semisynthetic products to be researched and potentially developed as new drugs. In this context, this review highlights the advances in the field of HPU inhibition, presenting and discussing the basis for the research of new molecules aiming at the identification of more efficient therapeutic entities.
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Affiliation(s)
- Ana Thereza Fiori-Duarte
- Faculty of Pharmaceutical Sciences, University of Campinas - UNICAMP, Rua Candido Portinari 200, 13083-871 Campinas, SP, Brazil
| | - Ricardo Pereira Rodrigues
- Department of Pharmaceutical Sciences, Health Sciences Center - CCS, Federal University of Espírito Santo - UFES, Av. Marechal Campos 1468, 29047-105 Vitoria, ES, Brazil
| | - Rodrigo Rezende Kitagawa
- Department of Pharmaceutical Sciences, Health Sciences Center - CCS, Federal University of Espírito Santo - UFES, Av. Marechal Campos 1468, 29047-105 Vitoria, ES, Brazil
| | - Daniel Fábio Kawano
- Faculty of Pharmaceutical Sciences, University of Campinas - UNICAMP, Rua Candido Portinari 200, 13083-871 Campinas, SP, Brazil.,Institute of Chemistry, University of Campinas - UNICAMP, Rua Josué de Castro s/n, 13083-970 Campinas, SP, Brazil
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27
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Baker DA. Plants against Helicobacter pylori to combat resistance: An ethnopharmacological review. ACTA ACUST UNITED AC 2020; 26:e00470. [PMID: 32477900 PMCID: PMC7248673 DOI: 10.1016/j.btre.2020.e00470] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Revised: 03/02/2020] [Accepted: 05/12/2020] [Indexed: 12/22/2022]
Abstract
Worldwide, Helicobacter pylori (H. pylori) is regarded as the major etiological agent of peptic ulcer and gastric carcinoma. Claiming about 50 percent of the world population is infected with H. pylori while therapies for its eradication have failed because of many reasons including the acquired resistance against its antibiotics. Hence, the need to find new anti-H.pylori medications has become a hotspot with the urge of searching for alternative, more potent and safer inhibitors. In the recent drug technology scenario, medicinal plants are suggested as repositories for novel synthetic substances. Hitherto, is considered as ecofriendly, simple, more secure, easy, quick, and less toxic traditional treatment technique. This review is to highlight the anti-H. pylori medicinal plants, secondary metabolites and their mode of action with the aim of documenting such plants before they are effected by cultures and traditions that is expected as necessity.
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Affiliation(s)
- Doha Abou Baker
- Medicinal and Aromatic Plants Dept., Pharmaceutical and Drug Industries Division, National Research Centre, Cairo, Egypt
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28
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Macroalgal activity against fungal urinary tract infections: in vitro screening and evaluation study. RENDICONTI LINCEI. SCIENZE FISICHE E NATURALI 2020. [DOI: 10.1007/s12210-019-00856-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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29
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Ramadevi S, Kaleeswaran B, Ilavenil S, Upgade A, Tamilvendan D, Rajakrishnan R, Alfarhan A, Kim YO, Kim HJ. Effect of traditionally used herb Pedalium murex L. and its active compound pedalitin on urease expression - For the management of kidney stone. Saudi J Biol Sci 2020; 27:833-839. [PMID: 32127759 PMCID: PMC7042614 DOI: 10.1016/j.sjbs.2020.01.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Revised: 01/07/2020] [Accepted: 01/07/2020] [Indexed: 12/24/2022] Open
Abstract
Pedalium murex L. is a medicinal herb that has been used for the treatment of diseases related to kidney in the traditional system of medicine. The current study aims to study the effect of ethyl acetate extract of P. murex (EAEP) and its fractionated compound pedalitin against urease production and UreC gene expression in Proteus mirabilis. The selected reference strain Proteus mirabilis (MTCC 425) and the isolates culture of Proteus mirabilis were subjected to study the antibacterial efficacy of P. murex. Expression analysis of P. mirabilis urease gene was successfully done by QPCR. The ethyl acetate extract effectively inhibit the reference Proteus mirabilis and bacterial isolates of Proteus mirabilis in the clinical samples studied. EAEP has showed more potent activity (56.7%) against urease enzyme and pedalitin also exhibited potent activity (30.1%). Using qPCR, the expression of UreC gene of P. mirabilis was controlled by EAEP and also its bioactive compound pedalitin. The present study clearly demonstrated the potency of P. murex in controlling the growth of pathogenic P. mirabilis and to control the expression of urease enzyme production as well as to restrict the urease gene expression in P. mirabilis.
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Affiliation(s)
- S. Ramadevi
- Department of Biotechnology, Bon Secours College of Education for Women, Vilar, Bypass Road, Thanjavur, Tamil Nadu, India
| | - B. Kaleeswaran
- Department of Zoology and Biotechnology, A.V.V.M. Sri Pushpam College (Autonomous), Poondi, Thanjavur, Tamil Nadu, India
| | - S. Ilavenil
- Grassland and Forage Division, National Institute of Animal Science, Rural Development Administration, Cheonan, Republic of Korea
| | - Akilesh Upgade
- Department of Microbiology, Shree N and N Virani Science College (Autonomous), Rajkot, Gujarat 360005, India
| | - D. Tamilvendan
- Department of Chemistry, National Institute of Technology, Tiruchirappalli 620015, India
| | - R. Rajakrishnan
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh, Saudi Arabia
| | - A.H. Alfarhan
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh, Saudi Arabia
| | - Y.-O. Kim
- Department of Bio-Environmental Chemistry, College of Agriculture and Life Sciences, Chungnam National University, 99 Daehak-Ro, Yuseung-Gu, Daejeon 34134, Republic of Korea
| | - H.-J. Kim
- Department of Clinical Pharmacology, College of Medicine, Soonchunhyang University, Cheonan, Republic of Korea
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Kataria R, Khatkar A. Lead Molecules for Targeted Urease Inhibition: An Updated Review from 2010 -2018. Curr Protein Pept Sci 2020; 20:1158-1188. [PMID: 30894105 DOI: 10.2174/1389203720666190320170215] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Revised: 02/01/2019] [Accepted: 03/15/2019] [Indexed: 12/14/2022]
Abstract
The field of enzyme inhibition is a tremendous and quickly growing territory of research. Urease a nickel containing metalloenzyme found in bacteria, algae, fungi, and plants brings hydrolysis of urea and plays important role in environmental nitrogen cycle. Apart from this it was found to be responsible for many pathological conditions due to its presence in many microorganisms such as H. Pylori, a ureolytic bacteria having urease which elevates pH of gastric medium by hydrolyzing urea present in alimentary canal and help the bacteria to colonize and spread infection. Due to the infections caused by the various bacterial ureases such as Bacillus pasteurii, Brucella abortus, H. pylori, H. mustelae, Klebsiella aerogenes, Klebsiella tuberculosis, Mycobacterium tuberculosis, Pseudomonas putida, Sporosarcina pasteurii and Yersinia enterocolitica, it has been the current topic of today's research. About a wide range of compounds from the exhaustive literature survey has been discussed in this review which is enveloped into two expansive classes, as Inhibitors from synthetic origin and Inhibitors from natural origin. Moreover active site details of enzyme, mechanism of catalysis of substrate by enzyme, uses of plant urease and its pathogenic behavior has been included in the current review. So, overall, this review article diagrams the current landscape of the developments in the improvements in the thriving field of urease inhibitory movement in medicinal chemistry from year 2010 to 2018, with an emphasis on mechanism of action of inhibitors that may be used for more development of recent and strong urease inhibitors and open up new doors for assist examinations in a standout amongst the most lively and promising regions of research.
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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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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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Song H, Zhou L, Liu D, Ge L, Li Y. Probiotic effect on Helicobacter pylori attachment and inhibition of inflammation in human gastric epithelial cells. Exp Ther Med 2019; 18:1551-1562. [PMID: 31410109 PMCID: PMC6676116 DOI: 10.3892/etm.2019.7742] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2018] [Accepted: 04/18/2019] [Indexed: 12/11/2022] Open
Abstract
Helicobacter pylori (H. pylori) is a major cause of chronic gastritis, gastric ulcers and gastric cancer. Recent studies have identified that probiotics are beneficial to human health due, in part, to their anti-H. pylori activities. Therefore, the present study investigated the antagonistic and local immunoregulatory activities of seven commercial probiotic strains and explored their mechanisms of actions. The human gastric epithelial cell line-1 (GES-1) was used to assess the effects of probiotics on the adhesion ability of H. pylori. GES-1 cells were infected with H. pylori plus lipopolysaccharide (HP-LPS) or the drug-resistant H. pylori strain (HP021) in the presence or absence of live probiotics. Following this, the growth rate and the adhesion ability of GES-1 cells were detected using MTT and urease activity assay. Toll-like receptor 4 (TLR4), NFKB inhibitor-α (IκBα) and nuclear factor (NF)-κB levels were measured by western blot analysis. The amount of interleukin (IL)-8 in the cell culture medium was determined by ELISA. Amongst the seven probiotic strains studied, live Lactobacillus acidophilus (L. acidophilus) and Lactobacillus bulgaricus (L. bulgaricus) inhibited H. pylori adherence to GES-1 cells most significantly. L. bulgaricus inhibited IL-8 production by GES-1 cells through modulation of the TLR4/IκBα/NF-κB pathway. Therefore, the present results suggested that consumption of food containing L. acidophilus and L. bulgaricus may be used as an adjuvant therapy for H. pylori-associated gastritis.
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Affiliation(s)
- Hanyi Song
- Department of Gastroenterology, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Long Zhou
- Department of Orthopedics, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Dongyan Liu
- Medical Research Center, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Lihui Ge
- Department of Gastroenterology, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Yan Li
- Department of Gastroenterology, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
- Correspondence to: Dr Yan Li, Department of Gastroenterology, Shengjing Hospital of China Medical University, 36 Sanhao Street, Heping, Shenyang, Liaoning 110004, P.R. China, E-mail:
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Mentha: A genus rich in vital nutra‐pharmaceuticals—A review. Phytother Res 2019; 33:2548-2570. [DOI: 10.1002/ptr.6423] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2019] [Revised: 05/20/2019] [Accepted: 06/04/2019] [Indexed: 12/11/2022]
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Khalil AAK, Park WS, Lee J, Kim HJ, Akter KM, Goo YM, Bae JY, Chun MS, Kim JH, Ahn MJ. A new anti-Helicobacter pylori juglone from Reynoutria japonica. Arch Pharm Res 2019; 42:505-511. [PMID: 31073878 DOI: 10.1007/s12272-019-01160-x] [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: 01/22/2019] [Accepted: 04/25/2019] [Indexed: 12/11/2022]
Abstract
A 70% ethanol extract from the root portion of Reynoutria japonica afforded one new and three known juglone derivatives, namely, 2-methoxy-6-acetyl-7-methyljuglone (1), 2-ethoxy-6-acetyl-7-methyljuglone (2), 2-methoxy-7-acetonyljuglone (3), and 3-acetyl-7-methoxy-2-methyljuglone (4) together with two phenolics (5 and 6), an anthraquinone (7), a stilbene (8) and a phthalide (9). Their structures were elucidated on the basis of comprehensive spectroscopic studies including IR, MS, and 1H, 13C, 2D NMR spectra. Compound 3 is a new compound in nature, and compounds 4-6 have been isolated for the first time from R. japonica. The isolates were evaluated for their antibacterial activity against three strains (43504, 51, and 26695) of Helicobacter pylori. The four isolated juglone derivatives (1-4) showed potent growth inhibitory activity. Among them, compounds 1-3 exhibited stronger inhibitory activity than those of the positive controls, juglone and metronidazole, for the three strains and that of another reference, clarithromycin, for the 43504 and 51 strains. Specifically, the new juglone compound 3 displayed the most potent antibacterial activity against all three strains, 43504, 51, and 26695, with MIC values of 0.06, 0.06 and 0.13 μM, respectively, and MIC50 values of 0.14, 0.11 and 0.15 μM, respectively.
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Affiliation(s)
- Atif Ali Khan Khalil
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Gyeongsang National University, Jinju, Gyeongnam, 52828, South Korea
| | - Woo Sung Park
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Gyeongsang National University, Jinju, Gyeongnam, 52828, South Korea
| | - Jeehoon Lee
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Gyeongsang National University, Jinju, Gyeongnam, 52828, South Korea
| | - Hye-Jin Kim
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Gyeongsang National University, Jinju, Gyeongnam, 52828, South Korea
| | - Kazi-Marjahan Akter
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Gyeongsang National University, Jinju, Gyeongnam, 52828, South Korea
| | - Young-Min Goo
- Gyeongnam Oriental Anti-aging Institute, Sancheong, Gyeongnam, 52215, South Korea
| | - Ji-Yeong Bae
- National Center for Natural Products Research, School of Pharmacy, University of Mississippi, University, Oxford, MS, 38677, USA
| | - Man-Seog Chun
- Korea Science Academy of KAIST, Busan, 47162, South Korea
| | - Jung-Hwan Kim
- Department of Pharmacology, School of Medicine, Institute of Health Sciences, Gyeongsang National University, Jinju, Gyeongnam, 52727, South Korea
| | - Mi-Jeong Ahn
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Gyeongsang National University, Jinju, Gyeongnam, 52828, South Korea.
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Ghasemian A, Fattahi A, Shokouhi Mostafavi SK, Almarzoqi AH, Memariani M, Ben Braiek O, Yassine HM, Mostafavi NSS, Ahmed MM, Mirforughi SA. Herbal medicine as an auspicious therapeutic approach for the eradication of Helicobacter pylori infection: A concise review. J Cell Physiol 2019; 234:16847-16860. [PMID: 30847906 DOI: 10.1002/jcp.28363] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2018] [Revised: 01/23/2019] [Accepted: 01/28/2019] [Indexed: 12/20/2022]
Abstract
Helicobacter pylori (H. pylori) causes gastric mucosa inflammation and gastric cancer mostly via several virulence factors. Induction of proinflammatory pathways plays a crucial role in chronic inflammation, gastric carcinoma, and H. pylori pathogenesis. Herbal medicines (HMs) are nontoxic, inexpensive, and mostly anti-inflammatory reminding meticulous emphasis on the elimination of H. pylori and gastric cancer. Several HM has exerted paramount anti-H. pylori traits. In addition, they exert anti-inflammatory effects through several cellular circuits such as inhibition of 5'-adenosine monophosphate-activated protein kinase, nuclear factor-κB, and activator protein-1 pathway activation leading to the inhibition of proinflammatory cytokines (interleukin 1α [IL-1α], IL-1β, IL-6, IL-8, IL-12, interferon γ, and tumor necrosis factor-α) expression. Furthermore, they inhibit nitrous oxide release and COX-2 and iNOS activity. The apoptosis induction in Th1 and Th17-polarized lymphocytes and M2-macrophagic polarization and STAT6 activation has also been exhibited. Thus, their exact consumable amount has not been revealed, and clinical trials are needed to achieve optimal concentration and their pharmacokinetics. In the aspect of bioavailability, solubility, absorption, and metabolism of herbal compounds, nanocarriers such as poly lactideco-glycolide-based loading and related formulations are helpful. Noticeably, combined therapies accompanied by probiotics can also be examined for better clearance of gastric mucosa. In addition, downregulation of inflammatory microRNAs (miRNAs) by HMs and upregulation of those anti-inflammatory miRNAs is proposed to protect the gastric mucosa. Thus there is anticipation that in near future HM-based formulations and proper delivery systems are possibly applicable against gastric cancer or other ailments because of H. pylori.
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Affiliation(s)
- Abdolmajid Ghasemian
- Department of Biology, Central Tehran Branch, Islamic Azad University, Tehran, Iran
| | - Azam Fattahi
- Center for Research and Training in Skin Disease and Leprosy, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Ali Hussein Almarzoqi
- Department of Biology, College of Science for Women, Babylon University, Babylon, Iraq
| | - Mojtaba Memariani
- Skin Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Olfa Ben Braiek
- Laboratory of Microorganisms and Active Biomolecules, Faculty of Sciences of Tunis, University of Tunis El-Manar, El Manar, Tunisia
| | - Hadi M Yassine
- Biomedical Research Center, Qatar University, Doha, Qatar
| | | | - Mohanad Mohsin Ahmed
- Department of Microbiology, College of Medicine, University of Kerbala, Kerbala, Iraq
| | - Seyede Amene Mirforughi
- Social Determinants of Health Research Center, Shahrekord University of Medical Sciences, Shahrekord, Iran
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Kanwal, Khan M, Arshia, Khan KM, Parveen S, Shaikh M, Fatima N, Choudhary MI. Syntheses, in vitro urease inhibitory activities of urea and thiourea derivatives of tryptamine, their molecular docking and cytotoxic studies. Bioorg Chem 2019; 83:595-610. [DOI: 10.1016/j.bioorg.2018.10.070] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Revised: 10/25/2018] [Accepted: 10/31/2018] [Indexed: 11/16/2022]
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Aimasso U, D'onofrio V, D'eusebio C, Devecchi A, Pira C, Merlo FD, De Francesco A. Helicobacter pylori and nutrition: a bidirectional communication. MINERVA GASTROENTERO 2019; 65:116-129. [PMID: 30759976 DOI: 10.23736/s1121-421x.19.02568-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Helicobacter pylori (HP) is a gram-negative flagellated pathogen acid-resistant bacterium; it belongs to the order Campylobacterales that is wide spread all over the world, infecting more than 50% of the world population. HP infection is etiologically associated with non-atrophic and atrophic gastritis, peptic ulcer and with 3 to 6-fold increased relative risk for developing gastric adenocarcinoma and mucosa-associated lymphoid tissue (MA LT) lymphoma. For this reason HP is recognized by the World Health Organization as a Class I human carcinogen. In the last years a lot of studies clarified the role of this pathogen in nutrition and metabolism; particularly, it has been shown that it is able to induce malabsorption of several nutrients like iron, cobalamin, vitamin C and vitamin E, with strong consequences on nutritional status. Interesting, this bacterium is able to produce different biological effects on hormones like ghrelin and leptin controlling both appetite and growth, mostly depending on the time of acquisition of the infection and of its treatment. In this review, the authors focused their attention on nutritional effects of HP infection and particularly on the role that diet, food, plants and specific nutrients can play in its treatment, considering that HP eradication rates, with standard triple-therapy, have fallen to a low level in the last years.
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Affiliation(s)
- Umberto Aimasso
- Unit of Dietetics and Clinical Nutrition, Città della Salute e della Scienza, Turin, Italy -
| | - Valentina D'onofrio
- Unit of Dietetics and Clinical Nutrition, Città della Salute e della Scienza, Turin, Italy
| | - Chiara D'eusebio
- Unit of Dietetics and Clinical Nutrition, Città della Salute e della Scienza, Turin, Italy
| | - Andrea Devecchi
- Unit of Dietetics and Clinical Nutrition, Città della Salute e della Scienza, Turin, Italy
| | - Costanza Pira
- Unit of Dietetics and Clinical Nutrition, Città della Salute e della Scienza, Turin, Italy
| | - Fabio D Merlo
- Unit of Dietetics and Clinical Nutrition, Città della Salute e della Scienza, Turin, Italy
| | - Antonella De Francesco
- Unit of Dietetics and Clinical Nutrition, Città della Salute e della Scienza, Turin, Italy
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An experimental in-vitro study to evaluate the anti-helicobacter activity of Glycyrrhetinic acid. REV ROMANA MED LAB 2019. [DOI: 10.2478/rrlm-2019-0003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Abstract
Aim: The aim of this study was to investigate the in-vitro efficacy of Glycyrrhetinic acid against Helicobacter pylori (H. pylori) strains, as compared with conventional antibacterial agents.
Methods: A total of 41 H. pylori isolates were used, 6 of which were of standard strains (NCTC 1637), 8 of which were drug-sensitive, and 27 were resistant to drugs isolates. Clarithromycin and metronidazole resistance in all strains of H. pylori were determined by the Epsilometer test (E-test) method. MIC study was performed by using microdilution broth method.
Results: Glycyrrhetinic acid was found to be effective against H. pylori NCTC 1637 in doses of 12.0±4.38 µg/mL, while the MIC value of clinical H. pylori isolates susceptible to antimicrobials was 20.8±10.11 µg/ml. It was found that the MIC values for antimicrobial-sensitive clinical H. pylori isolates was higher when compared with H. pylori NCTC 1637 strains. The MIC values of the standard antimicrobial agents against drug-resistant H. pylori strains were higher than H. pylori NCTC 1637 strains and drug-sensitive H. pylori strains. The MIC value was found to be 14.22±7.77 µg/ml for metronidazole, 3.89±1.90 µg/ml for clarithromycin, 2.33±1.0 µg/ml for amoxicillin, 2.44±0.88 µg/ml for levofloxacin and 4.89±2.47 µg/ml for tetracycline, whereas the MIC value of Glycyrrhetinic acid was 26.67±8.0 µg/ml in metronidazole-resistant H. pylori isolates. Besides, MIC values of the antimicrobials and 18ß-Glycyrrhetinic acid among the strains resistant to clarithromycin were as follows: 3.25±2.12 µg/ml for metronidazole, 9.71±4.54 µg/ml for clarithromycin, 2.06±1.32 µg/ml for amoxicillin, 3.88±4.22 µg/ml for levofloaxacin and 3.25±1.04 µg/mL for tetracycline and 22.0±11.11 µg/ml for Glycyrrhetinic acid.
Conclusion: Glycyrrhetinic acid had significant antimicrobial activity against H. pylori strains. Although further in-vivo studies are needed on antimicrobial activity of Glycyrrhetinic acid, increased resistance to drugs currently used in treatment suggests that Glycyrrhetinic acid may be a potential agent for the treatment of H. pylori.
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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: 110] [Impact Index Per Article: 18.3] [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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40
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Phytochemicals in Helicobacter pylori Infections: What Are We Doing Now? Int J Mol Sci 2018; 19:ijms19082361. [PMID: 30103451 PMCID: PMC6121492 DOI: 10.3390/ijms19082361] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Revised: 08/03/2018] [Accepted: 08/07/2018] [Indexed: 12/18/2022] Open
Abstract
In this critical review, plant sources used as effective antibacterial agents against Helicobacter pylori infections are carefully described. The main intrinsic bioactive molecules, responsible for the observed effects are also underlined and their corresponding modes of action specifically highlighted. In addition to traditional uses as herbal remedies, in vitro and in vivo studies focusing on plant extracts and isolated bioactive compounds with anti-H. pylori activity are also critically discussed. Lastly, special attention was also given to plant extracts with urease inhibitory effects, with emphasis on involved modes of action.
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41
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Liu Q, Meng X, Li Y, Zhao CN, Tang GY, Li S, Gan RY, Li HB. Natural Products for the Prevention and Management of Helicobacter pylori Infection. Compr Rev Food Sci Food Saf 2018; 17:937-952. [PMID: 33350111 DOI: 10.1111/1541-4337.12355] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Revised: 03/21/2018] [Accepted: 03/27/2018] [Indexed: 02/06/2023]
Abstract
Helicobacter pylori is the main pathogen that induces chronic gastritis, peptic ulcers, atrophic gastritis, and other gastric disorders, and it is classified as a group I carcinogen. To eradicate H. pylori infection, triple therapy consisting of two antibiotics and a proton pump inhibitor is the most widely recommended first-line therapeutic strategy. Antimicrobial resistance to antibiotics contained in triple therapy could lead to therapeutic regimen failures. Recent studies showed that many natural products, including fruits, vegetables, spices, and medicinal plants, possess inhibitory effects on H. pylori, indicating their potential to be alternatives to prevent and manage H. pylori infection. This review summarizes the effects of natural products on H. pylori infection and highlights the mechanisms of action.
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Affiliation(s)
- Qing Liu
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Dept. of Nutrition, School of Public Health, Sun Yat-sen Univ., Guangzhou, 510080, China
| | - Xiao Meng
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Dept. of Nutrition, School of Public Health, Sun Yat-sen Univ., Guangzhou, 510080, China
| | - Ya Li
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Dept. of Nutrition, School of Public Health, Sun Yat-sen Univ., Guangzhou, 510080, China
| | - Cai-Ning Zhao
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Dept. of Nutrition, School of Public Health, Sun Yat-sen Univ., Guangzhou, 510080, China
| | - Guo-Yi Tang
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Dept. of Nutrition, School of Public Health, Sun Yat-sen Univ., Guangzhou, 510080, China
| | - Sha Li
- School of Chinese Medicine, Li Ka Shing Faculty of Medicine, The Univ. of Hong Kong, Hong Kong, China
| | - Ren-You Gan
- Dept. of Food Science and Engineering, School of Agriculture and Biology, Shanghai Jiao Tong Univ., Shanghai, 200240, China
| | - Hua-Bin Li
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Dept. of Nutrition, School of Public Health, Sun Yat-sen Univ., Guangzhou, 510080, China.,South China Sea Bioresource Exploitation and Utilization Collaborative Innovation Center, Sun Yat-sen Univ., Guangzhou, 510006, China
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42
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Shapla UM, Raihan J, Islam A, Alam F, Solayman N, Gan SH, Hossen S, Khalil I. Propolis: The future therapy against Helicobacter pylori-mediated gastrointestinal diseases. J Appl Biomed 2018. [DOI: 10.1016/j.jab.2017.10.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
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Debraekeleer A, Remaut H. Future perspective for potentialHelicobacter pylorieradication therapies. Future Microbiol 2018; 13:671-687. [DOI: 10.2217/fmb-2017-0115] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Affiliation(s)
- Ayla Debraekeleer
- Department of Structural & Molecular Microbiology, VIB Center for Structural Biology, VIB, Pleinlaan 2, 1050 Brussels, Belgium
- Department of Structural Biology Brussels, Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussels, Belgium
| | - Han Remaut
- Department of Structural & Molecular Microbiology, VIB Center for Structural Biology, VIB, Pleinlaan 2, 1050 Brussels, Belgium
- Department of Structural Biology Brussels, Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussels, Belgium
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44
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Donalisio M, Cagno V, Civra A, Gibellini D, Musumeci G, Rittà M, Ghosh M, Lembo D. The traditional use of Vachellia nilotica for sexually transmitted diseases is substantiated by the antiviral activity of its bark extract against sexually transmitted viruses. JOURNAL OF ETHNOPHARMACOLOGY 2018; 213:403-408. [PMID: 29203273 DOI: 10.1016/j.jep.2017.11.039] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2017] [Revised: 11/30/2017] [Accepted: 11/30/2017] [Indexed: 06/07/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Vachellia (Acacia) nilotica and other plants of this genus have been used in traditional medicine of Asian and African countries to treat many disorders, including sexually transmitted diseases, but few studies were performed to validate their anti-microbial and anti-viral activity against sexually transmitted infections. AIM OF THE STUDY The present study was undertaken to explore whether the ethnomedical use of V.nilotica to treat genital lesions is substantiated by its antiviral activity against the human immunodeficiency virus (HIV), the herpes simplex virus (HSV) and the human papillomavirus (HPV). MATERIALS AND METHODS The antiviral activity of V.nilotica was tested in vitro by virus-specific inhibition assays using HSV-2 strains, sensible or resistant to acyclovir, HIV-1IIIb strain and HPV-16 pseudovirion (PsV). The potential mode of action of extract against HSV-2 and HPV-16 was further investigated by virus inactivation and time-of-addition assays on cell cultures. RESULTS V.nilotica chloroform, methanolic and water bark extracts exerted antiviral activity against HSV-2 and HPV-16 PsV infections; among these, methanolic extract showed the best EC50s with values of 4.71 and 1.80µg/ml against HSV-2 and HPV-16, respectively, and it was also active against an acyclovir-resistant HSV-2 strain with an EC50 of 6.71µg/ml. By contrast, no suppression of HIV infection was observed. Investigation of the mechanism of action revealed that the methanolic extract directly inactivated the infectivity of the HPV-16 particles, whereas a partial virus inactivation and interference with virus attachment (EC50 of 2.74µg/ml) were both found to contribute to the anti-HSV-2 activity. CONCLUSIONS These results support the traditional use of V.nilotica applied externally for the treatment of genital lesions. Further work remains to be done in order to identify the bioactive components.
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Affiliation(s)
- Manuela Donalisio
- Department of Clinical and Biological Sciences, University of Torino, 10043 Orbassano, Torino, Italy
| | - Valeria Cagno
- Department of Clinical and Biological Sciences, University of Torino, 10043 Orbassano, Torino, Italy
| | - Andrea Civra
- Department of Clinical and Biological Sciences, University of Torino, 10043 Orbassano, Torino, Italy
| | - Davide Gibellini
- Department of Pathology and Diagnostic, University of Verona, 37134 Verona, Italy
| | - Giuseppina Musumeci
- Department of Experimental, Diagnostics and Specialty Medicine, University of Bologna, 40138 Bologna, Italy
| | - Massimo Rittà
- Department of Clinical and Biological Sciences, University of Torino, 10043 Orbassano, Torino, Italy
| | - Manik Ghosh
- Department of Pharmaceutical Sciences & Technology, Birla Institute of Technology, Mesra, Ranchi 83215, India
| | - David Lembo
- Department of Clinical and Biological Sciences, University of Torino, 10043 Orbassano, Torino, Italy.
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Wahab A, Jan SA, Rauf A, Rehman ZU, Khan Z, Ahmed A, Syed F, Safi SZ, Khan H, Imran M. Phytochemical composition, biological potential and enzyme inhibition activity of Scandix pecten-veneris L. J Zhejiang Univ Sci B 2018; 19:120-129. [PMID: 29405040 PMCID: PMC5833326 DOI: 10.1631/jzus.b1600443] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2016] [Accepted: 05/04/2017] [Indexed: 11/11/2022]
Abstract
OBJECTIVE Scandix pecten-veneris L. is a less studied wild edible herb and is considered an extinct plant species in many parts of the world. This study was designed to evaluate its phytochemical composition and biological potential of S. pecten-veneris L. METHODS Phytochemicals including alkaloids, flavonoids, polyphenols, and tannins were determined in extracts of S. pecten-veneris. Antioxidant activity was determined using 2,2-diphenyl-1-picrylhydrazyl (DPPH), while reducing power was tested by ferric reducing/antioxidant power (FRAP) assay. Antimicrobial activity against seven bacterial and four fungal strains was evaluated using agar well diffusion assay. Enzymes inhibition study was performed for urease, phosphodiesterase-I, and catalase-II. RESULTS S. pecten-veneris showed moderate antiradical activity and reducing potential of hydroxyl radicals to about 20% of the initial value. The antioxidant activity of various extracts of S. pecten-veneris showed a linear correlation with total phenolic contents in the order of water>n-butanol>chloroform>ethyl acetate>methanol extracts. S. pecten-veneris leaves showed the highest inhibitory activity against Staphylococcus aureus while the highest antifungal activity was observed against Candida albicans. The plant extract was most potent against urease enzymes but showed moderate activity against phosphodiestrase-I and carbonic anhydrase-II. CONCLUSIONS Our data demonstrate that in addition to its culinary uses, S. pecten-veneris has good medicinal potential and hence could be used for treating some specific health ailments.
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Affiliation(s)
- Abdul Wahab
- Department of Chemistry, Islamia College University, Peshawar-25120 KP, Pakistan
| | - Syed Aleem Jan
- Biochemistry Section Institute of Chemical Sciences, University of Peshawar, Peshawar-25120 KP, Pakistan
| | - Abdur Rauf
- Department of Chemistry, University of Swabi, Anbar-23561 KP, Pakistan
| | - Zia ur Rehman
- Department of Botany, Islamia College University, Peshawar-25120 KP, Pakistan
| | - Zahid Khan
- Biochemistry Section Institute of Chemical Sciences, University of Peshawar, Peshawar-25120 KP, Pakistan
| | - Aftab Ahmed
- State Key Laboratory of Chemical Resource Engineering, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China
| | - Fatima Syed
- Biochemistry Section Institute of Chemical Sciences, University of Peshawar, Peshawar-25120 KP, Pakistan
| | - Sher Zaman Safi
- Interdisciplinary Research Center in Biomedical Materials, COMSATS Institute of Information Technology, Lahore-54000, Pakistan
| | - Hamayun Khan
- Department of Chemistry, Islamia College University, Peshawar-25120 KP, Pakistan
| | - Muhammad Imran
- Biochemistry Section Institute of Chemical Sciences, University of Peshawar, Peshawar-25120 KP, Pakistan
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In vitro anti-urease, antioxidant activities and phytochemical composition of Geranium purpureum. JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2017. [DOI: 10.1007/s11694-017-9594-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Deutch CE. Limited effectiveness of over-the-counter plant preparations used for the treatment of urinary tract infections as inhibitors of the urease activity from Staphylococcus saprophyticus. J Appl Microbiol 2017; 122:1380-1388. [PMID: 28245081 DOI: 10.1111/jam.13430] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Revised: 02/08/2017] [Accepted: 02/16/2017] [Indexed: 12/24/2022]
Abstract
AIMS Urease is a key virulence factor for the Gram-positive urinary tract pathogen Staphylococcus saprophyticus and a potential target for antimicrobial therapy. The enzyme from S. saprophyticus is unusual in that it does not contain cysteine at the active site. The aims of this study were to test 14 over-the-counter plant preparations as inhibitors of this urease and to determine whether they can prevent the increase in pH that normally occurs in bacterial cultures containing urea. METHODS AND RESULTS Urease activity was measured colorimetrically by the formation of ammonium ions. The green tea and Uva-Ursi preparations reduced urease activity in a soluble extract of S. saprophyticus by more than 75%. Two herbal mixtures were weakly inhibitory and reduced activity by about 25%, but the other products had little or no effect. The green tea and Uva-Ursi extracts also inhibited urease activity in whole cells by more than 75%. One of the herbal products (WishGarden UTI) showed some inhibition of urease activity but the other (UTI Clear) did not. The green tea and Uva-Ursi preparations prevented the increase in pH that normally occurs when S. saprophyticus is grown in an artificial urine medium, but this was due primarily to bacterial death. The WishGarden UTI preparation could partially delay the pH increase while allowing some cells to remain viable. CONCLUSION These results indicate that only a few of the commercially available over-the-counter plant preparations commonly used for the treatment of urinary tract infections (UTIs) can inhibit the urease activity from S. saprophyticus. SIGNIFICANCE AND IMPACT OF THE STUDY While over-the-counter plant preparations may be considered an alternative to traditional antibiotics for the treatment of UTIs, they should be used with caution and a product should be matched to the properties of the virulence factors of the bacterial pathogen involved.
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Affiliation(s)
- C E Deutch
- Department of Biology, Creighton University, Omaha, NE, USA
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Damasceno JPL, Rodrigues RP, Gonçalves RDCR, Kitagawa RR. Anti-Helicobacter pylori Activity of Isocoumarin Paepalantine: Morphological and Molecular Docking Analysis. Molecules 2017; 22:molecules22050786. [PMID: 28498343 PMCID: PMC6154667 DOI: 10.3390/molecules22050786] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Revised: 04/29/2017] [Accepted: 05/03/2017] [Indexed: 02/07/2023] Open
Abstract
The Helicobacterpylori bacterium is one of the main causes of chronic gastritis, peptic ulcers, and even gastric cancer. It affects an average of half of the world population. Its difficult eradication depends upon multi-drug therapy. Since its classification as a group 1 carcinogenic by International Agency for Research on Cancer (IARC), the importance of H. pylori eradication has obtained a novel meaning. There is considerable interest in alternative therapies for the eradication of H. pylori using compounds from a wide range of natural products. In the present study, we investigated the antibacterial property of the isocoumarin paepalantine against H. pylori and it exhibited significant anti-H. pylori activity at a minimum inhibitory concentration (MIC) of 128 μg/mL and at a minimum bactericidal concentration (MBC) of 256 μg/mL. The scanning electron microscopy (SEM) revealed significant morphological changes of the bacterial cell as a response to a sub-MIC of paepalantine, suggesting a penicillin-binding protein (PBP) inhibition. Computational studies were carried out in order to study binding modes for paepalantine in PBP binding sites, exploring the active and allosteric sites. The data from the present study indicates that paepalantine exhibits significant anti-H. pylori activity, most likely by inhibiting membrane protein synthesis.
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Affiliation(s)
- João Paulo L Damasceno
- Graduate Program in Pharmaceutical Sciences, Federal University of Espirito Santo-UFES, Marechal Campos Av., 1468, Vitoria 29043-900, ES, Brazil.
| | - Ricardo P Rodrigues
- Graduate Program in Pharmaceutical Sciences, Federal University of Espirito Santo-UFES, Marechal Campos Av., 1468, Vitoria 29043-900, ES, Brazil.
| | - Rita de Cássia R Gonçalves
- Graduate Program in Pharmaceutical Sciences, Federal University of Espirito Santo-UFES, Marechal Campos Av., 1468, Vitoria 29043-900, ES, Brazil.
- Department of Pharmaceutical Sciences, Federal University of Espirito Santo-UFES, Marechal Campos Av., 1468, Vitoria 29043-900, ES, Brazil.
| | - Rodrigo R Kitagawa
- Graduate Program in Pharmaceutical Sciences, Federal University of Espirito Santo-UFES, Marechal Campos Av., 1468, Vitoria 29043-900, ES, Brazil.
- Department of Pharmaceutical Sciences, Federal University of Espirito Santo-UFES, Marechal Campos Av., 1468, Vitoria 29043-900, ES, Brazil.
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Amar N, Peretz A, Gerchman Y. A cheap, simple high throughput method for screening native Helicobacter pylori urease inhibitors using a recombinant Escherichia coli , its validation and demonstration of Pistacia atlantica methanolic extract effectivity and specificity. J Microbiol Methods 2017; 133:40-45. [DOI: 10.1016/j.mimet.2016.11.022] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Revised: 11/29/2016] [Accepted: 11/29/2016] [Indexed: 02/06/2023]
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