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Mahnashi MH, Ali S, M Alshehri O, Almazni IA, Asiri SA, Sadiq A, Zafar R, Jan MS. Pharmacological evaluations of amide carboxylates as potential anti-Alzheimer agents: anti-radicals, enzyme inhibition, simulation and behavioral studies in animal models. J Biomol Struct Dyn 2023:1-20. [PMID: 37642974 DOI: 10.1080/07391102.2023.2251052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Accepted: 08/17/2023] [Indexed: 08/31/2023]
Abstract
Alzheimer's disease (AD) is a neurological disorder that progresses gradually but irreversibly leading to dementia and is difficult to prevent and treat. There is a considerable time window in which the progression of the disease can be intervened. Scientific advances were required to help the researchers to identify the effective methods for the prevention and treatment of disease. This research was designed to investigate potential mediators for the remedy of AD, five new carboxylate amide zinc complexes (AAZ9-AAZ13) were synthesized and characterized by spectroscopic and physicochemical techniques. The biological evaluation was carried out based on the cholinesterase inhibitory mechanism. The preparation methodology provided the effective synthesis of targeted moieties. The in vitro pharmacological activities were evaluated involving AChE/BChE inhibition and antioxidant potential. All synthesized compounds displayed activity against both enzymes in higher or comparable to the standard drug Galantamine, a reversible inhibitor but the results displayed by compound AAZ10 indicated IC50 of 0.0013 µM (AChE) and 0.061 µM (BChE) as high values for dual AChE/BChE inhibition with potent anti-oxidant results. Structure activity relationship (SAR) indicated that the potent activity of compound AAZ10 appeared due to the presence of nitro clusters at the ortho position of an aromatic ring. The potent synthesized compound AAZ10 was also explored for the in-vivo Anti-Alzheimer activity and anti-oxidant activity. Binding approaches of all synthesized compounds were revealed through molecular docking studies concerning binding pockets of enzymes that analyzed the best posture interaction with amino acid (AA) residues providing an appreciable understanding of enzyme inhibitory mechanisms. Results indicate that synthesized zinc (II) amide carboxylates can behave as an effective remedy in the treatment of Alzheimer's disease.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Mater H Mahnashi
- Department of Pharmaceutical Chemistry, College of Pharmacy, Najran University, Najran, Kingdom of Saudi Arabia
| | - Saqib Ali
- Department of Chemistry, Quaid-i-Azam University, Islamabad, Pakistan
| | - Osama M Alshehri
- Department of Clinical Laboratory Sciences, Faculty of Applied Medical Sciences, Najran University, Najran, Saudi Arabia
| | - Ibrahim Abdullah Almazni
- Department of Clinical Laboratory Sciences, Faculty of Applied Medical Sciences, Najran University, Najran, Saudi Arabia
| | - Saeed Ahmed Asiri
- Department of Clinical Laboratory Sciences, Faculty of Applied Medical Sciences, Najran University, Najran, Saudi Arabia
| | - Abdul Sadiq
- Department of Pharmacy, Faculty of Biological Sciences, University of Malakand, Chakdara, KP, Pakistan
| | - Rehman Zafar
- Department of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences, Riphah International University, Islamabad, Pakistan
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Kumar K, Datta A, Rohilla J, Thakur S, Singh R, Kaur V. Engineered organotin(IV) and vanadium(V) derivatives with distinct coordination modes and luminescent properties for the efficient detection and quantification of permanganate ions. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 294:122521. [PMID: 36842208 DOI: 10.1016/j.saa.2023.122521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 01/26/2023] [Accepted: 02/16/2023] [Indexed: 06/18/2023]
Abstract
The distinction in coordination modes of metal complexes leads to their versatile structural features and unique properties. Here, we report two tetradentate Schiff base ligands (H2L1 and H2L2) bearing N2O2 donor sets, tactically selected to provide distinct coordination modes with different metal ions. The ligands were utilized to synthesize their organotin(IV) (1-4) and vanadium(V) (5) derivatives. The synthesized compounds were characterized using elemental analysis, FT-IR spectroscopy, multi-nuclei NMR (1H, 13C, and 119Sn) spectroscopy, mass spectrometry, and single-crystal X-ray diffraction. The organotin(IV) derivatives (1-4) displayed hepta-coordination around both the Sn centres as they were achieved in their dimeric form. Contrariwise, the vanadium(V) compound (5) was isolated as a mononuclear entity exhibiting penta-coordinated geometry around the vanadium centre. The variation in the coordination modes was evident in their UV-vis and fluorescence spectra. The organotin(IV) compounds (1-4) exhibited a strong emission band centred at 468 nm when excited at a wavelength of 360 nm whereas the vanadium(V) (5) derivative displayed poor fluorogenic response. Compound 1 was further explored for the fluorogenic chemo-sensing of permanganate ions (MnO4-) amongst various anions by quenching response. A detailed investigation of the recognition of permanganate ions was accomplished by spectrofluorometric, spectroscopic (119Sn NMR), mass spectrometric, and computational studies.
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Affiliation(s)
- Keshav Kumar
- Department of Chemistry, Panjab University, Sector-14, Chandigarh 160014, India
| | - Agrima Datta
- Department of Chemistry, DAV College, Sector 10, Chandigarh 160011, India
| | - Jyoti Rohilla
- Department of Chemistry, Panjab University, Sector-14, Chandigarh 160014, India
| | - Sahil Thakur
- Department of Chemistry, Panjab University, Sector-14, Chandigarh 160014, India
| | - Raghubir Singh
- Department of Chemistry, DAV College, Sector 10, Chandigarh 160011, India.
| | - Varinder Kaur
- Department of Chemistry, Panjab University, Sector-14, Chandigarh 160014, India.
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Sa S, Ponniah S J, Biswal P, Sathesh V, Murali AC, Venkatasubbaiah K. Distannadithiophenes and their application towards hydroboration of carbonyl compounds. Eur J Inorg Chem 2022. [DOI: 10.1002/ejic.202200283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Shreenibasa Sa
- National Institute of Science Education and Research School of Chemical Sciences INDIA
| | - Joseph Ponniah S
- National Institute of Science Education and Research School of Chemical Sciences INDIA
| | - Priyabrata Biswal
- National Institute of Science Education and Research School of Chemical Sciences INDIA
| | - Venkatesan Sathesh
- National Institute of Science Education and Research School of Chemical Sciences INDIA
| | | | - Krishnan Venkatasubbaiah
- National Institute of Science Education and Research School of Chemical Sciences NISER 752050 Bhubaneswar INDIA
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Diorganotin(IV) complexes derived from thiazole Schiff bases: synthesis, characterization, antimicrobial and cytotoxic studies. RESEARCH ON CHEMICAL INTERMEDIATES 2021. [DOI: 10.1007/s11164-021-04557-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Zafar R, Naureen H, Zubair M, Shahid K, Saeed Jan M, Akhtar S, Ahmad H, Waseem W, Haider A, Ali S, Tariq M, Sadiq A. Prospective Application of Two New Pyridine-Based Zinc (II) Amide Carboxylate in Management of Alzheimer's Disease: Synthesis, Characterization, Computational and in vitro Approaches. Drug Des Devel Ther 2021; 15:2679-2694. [PMID: 34188447 PMCID: PMC8232895 DOI: 10.2147/dddt.s311619] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Accepted: 05/20/2021] [Indexed: 11/30/2022] Open
Abstract
Background Alzheimer’s disease (AD) is a neurodegenerative illness described predominantly by dementia. Even though Alzheimer’s disease has been known for over a century, its origin remains a mystery, and researchers are exploring many therapy options, including the cholinesterase technique. A decreased acetylcholine ACh neurotransmitter level is believed to be among the important factors in the progression of Alzheimer’s disease. Methods In continuation of synthesizing potential anti-Alzheimer agents and known appreciative pharmacological potential of amide-containing compounds, this study presents the synthesis of two novel amide-based transition metal zinc (II) complexes, AAZ7 and AAZ8, attached with a heterocyclic pyridine ring, which was synthesized and characterized by Fourier transform infrared spectroscopy (FT-IR), elemental analysis, 1H_NMR, and 13C_NMR. FT-IR spectroscopic records showed the development of bidentate ligand as Δν value was decreased in both complexes when compared with the free ligand. Both of the synthesized complexes were analyzed for acetylcholinesterase and butyrylcholinesterase inhibitory potential along with the antioxidizing activity. Results Importantly, the complex of AAZ8 exhibited more potent activity giving IC50 values of 14 µg/mL and 18µg/mL as AChE and BChE cholinesterase inhibitors, respectively, when compared with standard positive control galantamine. Interestingly, AAZ8 also displayed promising antioxidant potential by showing IC50 values of 35 µg/mL for DPPH and 29 µg/mL for ABTS in comparison with positive control ascorbic acid. Conclusion Herein, we report two new amide carboxylate zinc (II) complexes which were potentially analyzed for various biological applications like acetylcholinesterase (AChE), butyrylcholinesterase (BChE) inhibitory potentials, and antioxidant assays. Computational docking studies also simulated results to understand the interactions. Additionally, thermodynamic parameters utilizing molecular dynamic simulation were performed to determine the ligand protein stability and flexibility that supported the results. Studies have shown that these compounds have the potential to be good anti-Alzheimer candidates for future studies due to inhibition of cholinesterase enzymes and display of free radical scavenging potential against DPPH as well as ABTS free radicals.
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Affiliation(s)
- Rehman Zafar
- Department of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences, Riphah International University, Islamabad, 44000, Pakistan.,Yusra Institute of Pharmaceutical Sciences, Islamabad, 44000, Pakistan
| | - Humaira Naureen
- Department of Pharmacognosy, Faculty of Pharmaceutical Sciences, Riphah International University, Islamabad, 44000, Pakistan
| | - Muhammad Zubair
- Department of Chemistry, Quaid-i-Azam University, Islamabad, 45320, Pakistan
| | - Khadija Shahid
- Department of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences, Riphah International University, Islamabad, 44000, Pakistan
| | | | - Samar Akhtar
- Yusra Institute of Pharmaceutical Sciences, Islamabad, 44000, Pakistan
| | - Hammad Ahmad
- Yusra Institute of Pharmaceutical Sciences, Islamabad, 44000, Pakistan
| | - Wajeeha Waseem
- Department of Basic Medical Sciences, Faculty of Pharmaceutical Sciences, Riphah International University, Islamabad, 44000, Pakistan
| | - Ali Haider
- Department of Chemistry, Quaid-i-Azam University, Islamabad, 45320, Pakistan
| | - Saqib Ali
- Department of Chemistry, Quaid-i-Azam University, Islamabad, 45320, Pakistan
| | - Muhammad Tariq
- Department of PCB, Rokhan University, Jalalabad, Nangrahar, Afghanistan
| | - Abdul Sadiq
- Department of Pharmacy, University of Malakand, Chakdara, KP, Pakistan
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Organotin(IV) derivatives based on 2-((2-methoxyphenyl)carbamoyl)benzoic acid: Synthesis, spectroscopic characterization, assessment of antibacterial, DNA interaction, anticancer and antileishmanial potentials. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129600] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Ribas R, Cazarolli JC, da Silva EC, Meneghetti MR, Meneghetti SMP, Bento FM. Characterization of antimicrobial effect of organotin-based catalysts on diesel-biodiesel deteriogenic microorganisms. ENVIRONMENTAL MONITORING AND ASSESSMENT 2020; 192:802. [PMID: 33263150 DOI: 10.1007/s10661-020-08744-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2020] [Accepted: 11/10/2020] [Indexed: 06/12/2023]
Abstract
Organotin compounds are applied in several industrial reactions and can present antifungal and antibacterial activities. Incorrect handling and storage practices of biodiesel and diesel-biodiesel blends can lead to microbial development, impacting its final quality. Concerning this problem, this work investigated the antimicrobial action of two organotin catalysts used in biodiesel production with four isolated microroorganisms (Bacillus pumilus, Pseudomonas aeruginosa, Pseudallescheria boydii, and Aureobasidium pullulans) and a pool of microorganisms (ASTM E1259 standard practice). Samples of soybean biodiesel with different concentrations of dibutyl tin dilaurate (catalyst 1) and di-n-butyl-oxo-stannane (catalyst 2) were prepared and added of mineral medium. The pool of microorganisms was inoculated and incubated at 30 °C and final biomass was weighted after 14 days. Thereafter, soybean biodiesel with catalyst 2 was used. Fungal biomass was weighted, and plate count was used to assess bacterial growth. Results show that catalysts 1 and 2 presented no inhibitory activity on the pool of microorganisms evaluated. A slight inhibitory activity was observed for B. pumilus and A. pullulans growth, but not for P. boydii, P. aeruginosa, or the pool of microorganisms. All experiment exhibited acidification higher than sterile control. Infrared analysis show less microbiological degradation products in the tin-protected fuel with ASTM inoculum. These results suggest that these tin-based catalysts show no toxic effect on native microbial population and a slight effect on some isolated microbial population in laboratory scale and for the first time shows that these organotin compounds can be employed safely as biodiesel catalyst. Graphical abstract.
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Affiliation(s)
- Rodolfo Ribas
- Department of Microbiology, Immunology and Parasitology, Fuels and Biofuels Biodeterioration Laboratory (LAB-BIO), Federal University of Rio Grande do Sul, Sarmento Leite Street 500, Porto Alegre, RS, 90050-170, Brazil.
| | - Juciana Clarice Cazarolli
- Department of Microbiology, Immunology and Parasitology, Fuels and Biofuels Biodeterioration Laboratory (LAB-BIO), Federal University of Rio Grande do Sul, Sarmento Leite Street 500, Porto Alegre, RS, 90050-170, Brazil
| | - Eid Cavalcante da Silva
- Technology Center (CTEC), Federal University of Alagoas, Av. Lourival de Melo Mota, s/n°, Maceió, AL, 57072-970, Brazil
| | - Mario Roberto Meneghetti
- Institute of Chemistry and Biotechnology, Group of Catalysis and Chemical Reactivity (GCAR), Federal University of Alagoas, Av. Lourival de Melo Mota, s/n°, Maceió, AL, 57072-970, Brazil
| | - Simoni Margareti Plentz Meneghetti
- Institute of Chemistry and Biotechnology, Group of Catalysis and Chemical Reactivity (GCAR), Federal University of Alagoas, Av. Lourival de Melo Mota, s/n°, Maceió, AL, 57072-970, Brazil
| | - Fatima Menezes Bento
- Department of Microbiology, Immunology and Parasitology, Fuels and Biofuels Biodeterioration Laboratory (LAB-BIO), Federal University of Rio Grande do Sul, Sarmento Leite Street 500, Porto Alegre, RS, 90050-170, Brazil
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