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Jemel I, Krayem N, Ben Bacha A, Alonazi M, Horchani H, Ghamgui H. Novel Stable Protease Inhibitor from Phoenix dactylifera(L.) Flowers with Antimicrobial and Antitumoral Activities. ACS Omega 2024; 9:13332-13341. [PMID: 38524442 PMCID: PMC10956122 DOI: 10.1021/acsomega.3c10287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Revised: 02/12/2024] [Accepted: 02/19/2024] [Indexed: 03/26/2024]
Abstract
A novel protease inhibitor isolated from date palm Phoenix dactylifera(L.) flowers (PIDF) was purified and characterized. A heat and acidic treatment step followed by ethanol precipitation and reverse-phase high-performance chromatography was applied to purify this natural protease inhibitor to homogeneity with a single band of about 19 kDa. The stability study depicted that PIDF was fully stable at 40 °C and retained 65% of its initial activity after heating at 50 °C for 24 h. Its thermal stability at 70 °C was markedly enhanced by adding calcium, bovine serum albumin, and sorbitol as well as by metal divalent cations, especially Mg2+ and Hg2+. This protease inhibitor showed high inhibitory activity against therapeutic proteases, including pepsin, trypsin, chymotrypsin, and collagenase, and acted as a potent inhibitor of some commercial microbial proteases from Aspergillus oryzae, Bacillus. sp, and Bacillus licheniformis. Moreover, a potent antibacterial spectrum against Gram (+) and Gram (-) bacterial strains and an efficient antifungal effect were observed. Its cytotoxicity toward human colorectal cancer cell LoVo and HCT-116 lines suggested that PIDF could serve as a new therapeutic target inhibiting human colorectal cancer.
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Affiliation(s)
- Ikram Jemel
- Laboratory
of Plant Biotechnology Applied to Crop Improvement, Faculty of Science
of Sfax, University of Sfax, Sfax 3038, Tunisia
| | - Najeh Krayem
- Laboratory
of Biochemistry and Enzymatic Engineering of Lipases, ENIS, University of Sfax, Soukra Road, BP1171, Sfax 3038, Tunisia
| | - Abir Ben Bacha
- Biochemistry
Department, College of Sciences, King Saud
University, P.O. Box 22452, Riyadh 11495, Saudi Arabia
| | - Mona Alonazi
- Biochemistry
Department, College of Sciences, King Saud
University, P.O. Box 22452, Riyadh 11495, Saudi Arabia
| | - Habib Horchani
- Environment
and Biotechnology Research Group, Science Department, College of Rivière-Du-Loup, Rivère-Du-Loup, Québec G5R1E2, Canada
| | - Hanène Ghamgui
- Laboratory
of Biochemistry and Enzymatic Engineering of Lipases, ENIS, University of Sfax, Soukra Road, BP1171, Sfax 3038, Tunisia
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Hussein S, Ben Bacha A, Alonazi M, Alwaili MA, Mobasher MA, Alburae NA, Banjabi AA, El-Said KS. Urtica pilulifera leaves extract mitigates cadmium induced hepatotoxicity via modulation of antioxidants, inflammatory markers and Nrf-2 signaling in mice. Front Mol Biosci 2024; 11:1365440. [PMID: 38469182 PMCID: PMC10925629 DOI: 10.3389/fmolb.2024.1365440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Accepted: 02/05/2024] [Indexed: 03/13/2024] Open
Abstract
Introduction: Cadmium (Cd) is a harmful heavy metal that results in many toxic issues. Urtica pilulifera showed potential pharmaceutical applications. This study investigated the possible ameliorative mechanism of Urtica pilulifera leaves extract (UPLE) against hepatotoxicity induced by cadmium chloride (CdCl2) in mice. Methods: In vitro phytochemical screening and the metal-chelating activity of UPLE were ascertained. Four groups of forty male mice were used (n = 10) as follows; Group 1 (G1) was a negative control. G2 was injected i.p., with UPLE (100 mg/kg b. wt) daily. G3 was injected i.p., with Cd (5 mg/kg b. wt) daily. G4 was injected with Cd as in G3 and with UPLE as in G2. On day 11, the body weight changes were evaluated, blood, and serum samples were collected for hematological and biochemical assessments. Liver tissues were used for biochemical, molecular, and histopathological investigations. Results: The results showed that UPLE contains promising secondary metabolites that considerably lessen the negative effects of Cd on liver. Furthermore, UPLE inhibited oxidative stress and inflammation; restored antioxidant molecules; and promoted nuclear-related factor-2 (Nrf-2) expression. Also, UPLE improved the histopathological alterations induced by Cd. Discussion: This study explored the beneficial role of UPLE treatment in Cd-induced liver injury through enhancing Nrf-2 signaling and antioxidant enzyme gene expression in the liver of mice. Therefore, UPLE could have valuable implications against hepatotoxicity induced by environmental cadmium exposure. Which can be used as a chelating agent against Cd.
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Affiliation(s)
- Shaimaa Hussein
- Department of Pharmacology, College of Pharmacy, Jouf University, Sakaka, Al Jawf, Saudi Arabia
| | - Abir Ben Bacha
- Department of Biochemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Mona Alonazi
- Department of Biochemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Maha Abdullah Alwaili
- Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Maysa A. Mobasher
- Department of Pathology, Biochemistry Division, College of Medicine, Jouf University, Sakaka, Saudi Arabia
| | - Najla Ali Alburae
- Department of Biology, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Abeer A. Banjabi
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Karim Samy El-Said
- Biochemistry Division, Chemistry Department, Faculty of Science, Tanta University, Tanta, Egypt
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Aldawood N, Almustafa S, Alwasel S, Aldahmash W, Ben Bacha A, Alamri A, Alanazi M, Harrath AH. Involvement of Autophagy and Oxidative Stress-Mediated DNA Hypomethylation in Transgenerational Nephrotoxicity Induced in Rats by the Mycotoxin Fumonisin B1. Toxins (Basel) 2023; 15:663. [PMID: 37999527 PMCID: PMC10674455 DOI: 10.3390/toxins15110663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2023] [Revised: 11/12/2023] [Accepted: 11/14/2023] [Indexed: 11/25/2023] Open
Abstract
Fumonisin B1 (FB1), a mycotoxin produced by Fusarium verticillioides, is one of the most common pollutants in natural foods and agricultural crops. It can cause chronic and severe health issues in humans and animals. The aim of this study was to evaluate the transgenerational effects of FB1 exposure on the structure and function of the kidneys in offspring. Virgin female Wistar rats were randomly divided into three groups: group one (control) received sterile water, and groups two and three were intragastrically administered low (20 mg/kg) and high (50 mg/kg) doses of FB1, respectively, from day 6 of pregnancy until delivery. Our results showed that exposure to either dose of FB1 caused histopathological changes, such as atrophy, hypercellularity, hemorrhage, calcification, and a decrease in the glomerular diameter, in both the first and second generations. The levels of the antioxidant markers glutathione, glutathione S-transferase, and catalase significantly decreased, while malondialdehyde levels increased. Moreover, autophagy was induced, as immunofluorescence analysis revealed that LC-3 protein expression was significantly increased in both generations after exposure to either dose of FB1. However, a significant decrease in methyltransferase (DNMT3) protein expression was observed in the first generation in both treatment groups (20 mg/kg and 50 mg/kg), indicating a decrease in DNA methylation as a result of early-life exposure to FB1. Interestingly, global hypomethylation was also observed in the second generation in both treatment groups despite the fact that the mothers of these rats were not exposed to FB1. Thus, early-life exposure to FB1 induced nephrotoxicity in offspring of the first and second generations. The mechanisms of action underlying this transgenerational effect may include oxidative stress, autophagy, and DNA hypomethylation.
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Affiliation(s)
- Nouf Aldawood
- Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, Riyadh 11671, Saudi Arabia;
| | - Sarah Almustafa
- Department of Zoology, College of Sciences, King Saud University, Riyadh 11451, Saudi Arabia (S.A.); (W.A.)
| | - Saleh Alwasel
- Department of Zoology, College of Sciences, King Saud University, Riyadh 11451, Saudi Arabia (S.A.); (W.A.)
| | - Waleed Aldahmash
- Department of Zoology, College of Sciences, King Saud University, Riyadh 11451, Saudi Arabia (S.A.); (W.A.)
| | - Abir Ben Bacha
- Department of Biochemistry, College of Sciences, King Saud University, Riyadh 11671, Saudi Arabia;
| | - Abdullah Alamri
- Genome Research Chair, Department of Biochemistry, College of Sciences, King Saud University, Riyadh 11495, Saudi Arabia; (A.A.); (M.A.)
| | - Mohammad Alanazi
- Genome Research Chair, Department of Biochemistry, College of Sciences, King Saud University, Riyadh 11495, Saudi Arabia; (A.A.); (M.A.)
| | - Abdel Halim Harrath
- Department of Zoology, College of Sciences, King Saud University, Riyadh 11451, Saudi Arabia (S.A.); (W.A.)
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El-Sayed NNE, Al-Otaibi TM, Barakat A, Almarhoon ZM, Hassan MZ, Al-Zaben MI, Krayem N, Masand VH, Ben Bacha A. Synthesis and Biological Evaluation of Some New 3-Aryl-2-thioxo-2,3-dihydroquinazolin-4(1 H)-ones and 3-Aryl-2-(benzylthio)quinazolin-4(3 H)-ones as Antioxidants; COX-2, LDHA, α-Glucosidase and α-Amylase Inhibitors; and Anti-Colon Carcinoma and Apoptosis-Inducing Agents. Pharmaceuticals (Basel) 2023; 16:1392. [PMID: 37895863 PMCID: PMC10610505 DOI: 10.3390/ph16101392] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Revised: 09/17/2023] [Accepted: 09/20/2023] [Indexed: 10/29/2023] Open
Abstract
Oxidative stress, COX-2, LDHA and hyperglycemia are interlinked contributing pathways in the etiology, progression and metastasis of colon cancer. Additionally, dysregulated apoptosis in cells with genetic alternations leads to their progression in malignant transformation. Therefore, quinazolinones 3a-3h and 5a-5h were synthesized and evaluated as antioxidants, enzymes inhibitors and cytotoxic agents against LoVo and HCT-116 cells. Moreover, the most active cytotoxic derivatives were evaluated as apoptosis inducers. The results indicated that 3a, 3g and 5a were efficiently scavenged DPPH radicals with lowered IC50 values (mM) ranging from 0.165 ± 0.0057 to 0.191 ± 0.0099, as compared to 0.245 ± 0.0257 by BHT. Derivatives 3h, 5a and 5h were recognized as more potent dual inhibitors than quercetin against α-amylase and α-glucosidase, in addition to 3a, 3c, 3f and 5b-5f against α-amylase. Although none of the compounds demonstrated a higher efficiency than the reference inhibitors against COX-2 and LDHA, 3a and 3g were identified as the most active derivatives. Molecular docking studies were used to elucidate the binding affinities and binding interactions between the inhibitors and their target proteins. Compounds 3a and 3f showed cytotoxic activities, with IC50 values (µM) of 294.32 ± 8.41 and 383.5 ± 8.99 (LoVo), as well as 298.05 ± 13.26 and 323.59 ± 3.00 (HCT-116). The cytotoxicity mechanism of 3a and 3f could be attributed to the modulation of apoptosis regulators (Bax and Bcl-2), the activation of intrinsic and extrinsic apoptosis pathways via the upregulation of initiator caspases-8 and -9 as well as executioner caspase-3, and the arrest of LoVo and HCT-116 cell cycles in the G2/M and G1 phases, respectively. Lastly, the physicochemical, medicinal chemistry and ADMET properties of all compounds were predicted.
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Affiliation(s)
| | - Taghreed M. Al-Otaibi
- Department of Chemistry, College of Sciences, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia; (T.M.A.-O.); (A.B.); (M.I.A.-Z.)
| | - Assem Barakat
- Department of Chemistry, College of Sciences, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia; (T.M.A.-O.); (A.B.); (M.I.A.-Z.)
| | - Zainab M. Almarhoon
- Department of Chemistry, College of Sciences, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia; (T.M.A.-O.); (A.B.); (M.I.A.-Z.)
| | - Mohd. Zaheen Hassan
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Khalid University, Abha 62529, Saudi Arabia;
| | - Maha I. Al-Zaben
- Department of Chemistry, College of Sciences, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia; (T.M.A.-O.); (A.B.); (M.I.A.-Z.)
| | - Najeh Krayem
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases, ENIS, Université de Sfax, Route de Soukra 3038, Sfax BP 1173, Tunisia;
| | - Vijay H. Masand
- Department of Chemistry, Vidya Bharati College, Camp, Amravati, Maharashtra 444602, India;
| | - Abir Ben Bacha
- Biochemistry Department, College of Sciences, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia;
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Alonazi M, Krayem N, Alharbi MG, Khayyat AIA, Alanazi H, Horchani H, Ben Bacha A. Functional Characterization and Anti-Tumor Effect of a Novel Group II Secreted Phospholipase A 2 from Snake Venom of Saudi Cerastes cerates gasperetti. Molecules 2023; 28:6517. [PMID: 37764293 PMCID: PMC10536776 DOI: 10.3390/molecules28186517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 08/31/2023] [Accepted: 09/05/2023] [Indexed: 09/29/2023] Open
Abstract
Secreted phospholipases A2 are snake-venom proteins with many biological activities, notably anti-tumor activity. Phospholipases from the same snake type but different geographical locations have shown similar biochemical and biological activities with minor differences in protein sequences. Thus, the discovery of a new phospholipase A2 with unique characteristics identified in a previously studied venom could suggest the origins of these differences. Here, a new Group II secreted phospholipase A2 (Cc-PLA2-II) from the snake venom of Saudi Cerastes cerastes gasperetti was isolated and characterized. The purified enzyme had a molecular weight of 13.945 kDa and showed high specific activity on emulsified phosphatidylcholine of 1560 U/mg at pH 9.5 and 50 °C with strict calcium dependence. Interestingly, stability in extreme pH and high temperatures was observed after enzyme incubation at several pH levels and temperatures. Moreover, a significant dose-dependent cytotoxic anti-tumor effect against six human cancer cell lines was observed with concentrations of Cc-PLA2 ranging from 2.5 to 8 µM. No cytotoxic effect on normal human umbilical-vein endothelial cells was noted. These results suggest that Cc-PLA2-II potentially has angiogenic activity of besides cytotoxicity as part of its anti-tumor mechanism. This study justifies the inclusion of this enzyme in many applications for anticancer drug development.
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Affiliation(s)
- Mona Alonazi
- Biochemistry Department, Science College, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia; (M.A.); (M.G.A.); (A.I.A.K.); (H.A.)
| | - Najeh Krayem
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases, ENIS, Université de Sfax, Route de Soukra 3038, Sfax BP 1173, Tunisia;
| | - Mona G. Alharbi
- Biochemistry Department, Science College, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia; (M.A.); (M.G.A.); (A.I.A.K.); (H.A.)
| | - Arwa Ishaq A. Khayyat
- Biochemistry Department, Science College, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia; (M.A.); (M.G.A.); (A.I.A.K.); (H.A.)
| | - Humidah Alanazi
- Biochemistry Department, Science College, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia; (M.A.); (M.G.A.); (A.I.A.K.); (H.A.)
| | - Habib Horchani
- Science Department, College of Rivière-Du-Loup, Rivière-Du-Loup, QC G5R 1R1, Canada;
| | - Abir Ben Bacha
- Biochemistry Department, Science College, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia; (M.A.); (M.G.A.); (A.I.A.K.); (H.A.)
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Alonazi M, Al-Diahan SK, Alzahrani ZR, Ben Bacha A. Combined immobilized lipases for effective biodiesel production from spent coffee grounds. Saudi J Biol Sci 2023; 30:103772. [PMID: 37663395 PMCID: PMC10470282 DOI: 10.1016/j.sjbs.2023.103772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 07/28/2023] [Accepted: 08/03/2023] [Indexed: 09/05/2023] Open
Abstract
This work describes the enzymatic transesterification of the oil extracted from SCGs for synthesis of biodiesel as a promising alternative to diesel fuels based on petroleum. Biocatalysts from various sources were tested for biodiesel synthesis using coffee oil among which CaCO3- immobilized Staphylococcus aureus and Bacillus stearothermophilus showed the highest conversion yields (61 ± 2.64% and 64.3 ± 1.53%, respectively) in 4 h. In further optimizing reaction parameters, methanol to oil molar ratio, biocatalyst quantity, water content, as well as incubation time and temperature markedly improved oil-to-biodiesel conversion up to 99.33 ± 0.57 % in a solvent free reaction after 12 h at 55 °C. A mixture of inexpensive CaCO3-immobilized bacterial lipases at a 1:1 ratio was the best environment-friendly catalyst for biofuel synthesis as well as the ideal trade-off between conversion and cost. Obtained coffee biodiesel remained stable beyond 40 days at ambient storage conditions and its chemical characteristics were comparable to those of other known biodiesels according to the European requirements (EN14214). Collectively, SCGs, after oil extraction, could be an ideal substrate for the production of an environment-friendly biodiesel by using appropriate mixture of CaCO3-immobilized lipases.
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Affiliation(s)
- Mona Alonazi
- Biochemistry Department, College of Sciences, King Saud University, P.O Box 22455, Riyadh, Saudi Arabia
| | - Sooad K. Al-Diahan
- Biochemistry Department, College of Sciences, King Saud University, P.O Box 22455, Riyadh, Saudi Arabia
| | - Zaenab R.A. Alzahrani
- Biochemistry Department, College of Sciences, King Saud University, P.O Box 22455, Riyadh, Saudi Arabia
| | - Abir Ben Bacha
- Biochemistry Department, College of Sciences, King Saud University, P.O Box 22455, Riyadh, Saudi Arabia
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Kamalmaz N, Ben Bacha A, Alonazi M, Albasher G, Khayyat AIA, El-Ansary A. Unveiling sex-based differences in developing propionic acid-induced features in mice as a rodent model of ASD. PeerJ 2023; 11:e15488. [PMID: 37334116 PMCID: PMC10274690 DOI: 10.7717/peerj.15488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Accepted: 05/10/2023] [Indexed: 06/20/2023] Open
Abstract
Background Males are more likely to develop autism as a neurodevelopmental disorder than females are, although the mechanisms underlying male vulnerability are not fully understood. Therefore, studying the role of autism etiologies considering sex differences in the propionic acid (PPA) rodent model of autism would build greater understanding of how females are protected from autism spectrum disorder, which may be used as a treatment strategy for males with autism. Objectives This study aimed to investigate the sex differences in oxidative stress, glutamate excitotoxicity, neuroinflammation, and gut microbiota impairment as etiological mechanisms for many neurological diseases, with specific reference to autism. Method Forty albino mice were divided into four groups of 10 animals each with two control and two treated groups of both sexes received only phosphate-buffered saline or a neurotoxic dose of PPA (250 mg/kg body weight) for 3 days, respectively. Biochemical markers of energy metabolism, oxidative stress, neuroinflammation, and excitotoxicity were measured in mouse brain homogenates, whereas the presence of pathogenic bacteria was assessed in mouse stool samples. Furthermore, the repetitive behavior, cognitive ability, and physical-neural coordination of the animals were examined. Results Collectively, selected variables related to oxidative stress, glutamate excitotoxicity, neuroinflammation, and gut bacteria were impaired concomitantly with altered behavior in PPA-induced rodent model, with males being more susceptible than females. Conclusion This study explains the role of sex in the higher vulnerability of males to develop autistic biochemical and behavioral features compared with females. Female sex hormones and the higher detoxification capacity and higher glycolytic flux in females serve as neuroprotective contributors in a rodent model of autism.
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Affiliation(s)
- Nasreen Kamalmaz
- Biochemistry Department, Science College, King Saud University, Riyadh, Saudi Arabia
| | - Abir Ben Bacha
- Biochemistry Department, Science College, King Saud University, Riyadh, Saudi Arabia
| | - Mona Alonazi
- Biochemistry Department, Science College, King Saud University, Riyadh, Saudi Arabia
| | - Gadah Albasher
- Zoology Department, Science College, King Saud University, Riyadh, Saudi Arabia
| | - Arwa Ishaq A. Khayyat
- Biochemistry Department, Science College, King Saud University, Riyadh, Saudi Arabia
| | - Afaf El-Ansary
- Central Research Laboratory, King Saud University, Riyadh, Saudi Arabia
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Alonazi M, Ben Bacha A, Alharbi MG, Khayyat AIA, Al-Ayadhi L, El-Ansary A. Bee Pollen and Probiotics' Potential to Protect and Treat Intestinal Permeability in Propionic Acid-Induced Rodent Model of Autism. Metabolites 2023; 13:metabo13040548. [PMID: 37110206 PMCID: PMC10143803 DOI: 10.3390/metabo13040548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 04/05/2023] [Accepted: 04/07/2023] [Indexed: 04/29/2023] Open
Abstract
Rodent models may help investigations on the possible link between autism spectrum disorder (ASD) and gut microbiota since autistic patients frequently manifested gastrointestinal troubles as co-morbidities. Thirty young male rats were divided into five groups: Group 1 serves as control; Group 2, bee pollen and probiotic-treated; and Group 3, propionic acid (PPA)-induced rodent model of autism; Group 4 and Group 5, the protective and therapeutic groups were given bee pollen and probiotic combination treatment either before or after the neurotoxic dose of PPA, respectively. Serum occludin, zonulin, lipid peroxides (MDA), glutathione (GSH), glutathione-S-transferase (GST), glutathione peroxidase (GPX), catalase, and gut microbial composition were assessed in all investigated groups. Recorded data clearly indicated the marked elevation in serum occludin (1.23 ± 0.15 ng/mL) and zonulin (1.91 ± 0.13 ng/mL) levels as potent biomarkers of leaky gut in the PPA- treated rats while both were normalized to bee pollen/probiotic-treated rats. Similarly, the high significant decrease in catalase (3.55 ± 0.34 U/dL), GSH (39.68 ± 3.72 µg/mL), GST (29.85 ± 2.18 U/mL), and GPX (13.39 ± 1.54 U/mL) concomitant with a highly significant increase in MDA (3.41 ± 0.12 µmoles/mL) as a marker of oxidative stress was also observed in PPA-treated animals. Interestingly, combined bee pollen/probiotic treatments demonstrated remarkable amelioration of the five studied oxidative stress variables as well as the fecal microbial composition. Overall, our findings demonstrated a new approach to the beneficial use of bee pollen and probiotic combination as a therapeutic intervention strategy to relieve neurotoxic effects of PPA, a short-chain fatty acid linked to the pathoetiology of autism.
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Affiliation(s)
- Mona Alonazi
- Department of Biochemistry, College of Science, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia
| | - Abir Ben Bacha
- Department of Biochemistry, College of Science, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia
| | - Mona G Alharbi
- Department of Biochemistry, College of Science, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia
| | - Arwa Ishaq A Khayyat
- Department of Biochemistry, College of Science, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia
| | - Laila Al-Ayadhi
- Department of Physiology, Faculty of Medicine, King Saud University, P.O. Box 2925, Riyadh 11461, Saudi Arabia
| | - Afaf El-Ansary
- Central Laboratory, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia
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Alsubaiei SRM, Alfawaz HA, Almubarak AY, Alabdali NA, Ben Bacha A, El-Ansary A. Independent and Combined Effects of Probiotics and Prebiotics as Supplements or Food-Rich Diets on a Propionic-Acid-Induced Rodent Model of Autism Spectrum Disorder. Metabolites 2022; 13:metabo13010050. [PMID: 36676975 PMCID: PMC9863040 DOI: 10.3390/metabo13010050] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 12/14/2022] [Accepted: 12/23/2022] [Indexed: 12/31/2022] Open
Abstract
The link between nutrition and autism spectrum disorder (ASD) as a neurodevelopmental condition, which is clinically presented as significant delays or deviations in interaction and communication, has provided a fresh point of view and signals that nutrition may play a role in the etiology of ASD, as well as playing an effective role in treatment by improving symptoms. In this study, 36 male albino rat pups were used. They were randomly divided into five groups. The control group was fed only a standard diet and water for the 30 days of the experiment. The second group, which served as a propionic acid (PPA)-induced rodent model of ASD, received orally administered PPA (250 mg/kg body weight (BW)) for 3 days, followed by feeding with a standard diet until the end of the experiment. The three other groups were given PPA (250 mg/kg body weight (BW)) for 3 days and then fed a standard diet and orally administered yogurt (3 mL/kg BW/day), artichokes (400 mL/kg BW/day), and a combination of Lacticaseibacillus rhamnosus GG at 0.2 mL daily (1 × 109 CFU; as the probiotic of yogurt) and luteolin (50 mg/kg BW/day; as the major antioxidant and anti-inflammatory ingredient of artichokes) for 27 days. Biochemical markers, including gamma-aminobutyric acid (GABA), reduced glutathione (GSH), glutathione peroxidase (GPx1), tumor necrosis factor-alpha (TNF-α), interleukin-6 (IL-6), and interleukin-10 (IL-10), were measured in brain homogenates in all groups. The data showed that while PPA demonstrated oxidative stress and neuroinflammation in the treated rats, yogurt, Lacticaseibacillus rhamnosus GG as a probiotic, and luteolin as a prebiotic ingredient in artichokes were effective in alleviating the biochemical features of ASD. In conclusion, nutritional supplementation seems to be a promising intervention strategy for ASD. A combined dietary approach using pro- and prebiotics resulted in significant amelioration of most of the measured variables, suggesting that multiple interventions might be more relevant for the improvement of biochemical autistic features, as well as psychological traits. Prospective controlled trials are needed before recommendations can be made regarding the ideal ASD diet.
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Affiliation(s)
- Sana Razhan M. Alsubaiei
- Department of Food Science and Nutrition, College of Food & Agriculture Sciences, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia
| | - Hanan A. Alfawaz
- Department of Food Science and Nutrition, College of Food & Agriculture Sciences, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia
- Correspondence: (H.A.A.); (A.E.-A.); Tel.: +00966-508462529 (A.E.-A.); Fax: +00966-4683579 (A.E.-A.)
| | - Abdullah Yaseen Almubarak
- Experimental Surgery and Animal Lab, College of Medicine, King Saud University, P.O. Box 2925, Riyadh 11461, Saudi Arabia
| | - Nouf Ahmed Alabdali
- Experimental Surgery and Animal Lab, College of Medicine, King Saud University, P.O. Box 2925, Riyadh 11461, Saudi Arabia
| | - Abir Ben Bacha
- Biochemistry Department, Science College, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia
| | - Afaf El-Ansary
- Central Research Laboratory, Female Center for Medical Studies and Scientific Section, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia
- Correspondence: (H.A.A.); (A.E.-A.); Tel.: +00966-508462529 (A.E.-A.); Fax: +00966-4683579 (A.E.-A.)
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10
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Saddik R, Hammoudan I, Tighadouini S, Roby O, Radi S, Al-Zaben MI, Ben Bacha A, Masand VH, Almarhoon ZM. Mesoporous Silica Modified with 2-Phenylimidazo[1,2-a] pyridine-3-carbaldehyde as an Effective Adsorbent for Cu(II) from Aqueous Solutions: A Combined Experimental and Theoretical Study. Molecules 2022; 27:molecules27165168. [PMID: 36014408 PMCID: PMC9414865 DOI: 10.3390/molecules27165168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Revised: 08/11/2022] [Accepted: 08/11/2022] [Indexed: 11/16/2022]
Abstract
In this study, we will present an efficient and selective adsorbent for the removal of Cu(II) ions from aqueous solutions. The silica-based adsorbent is functionalized by 2-phenylimidazo[1,2-a] pyridine-3-carbaldehyde (SiN-imd-py) and the characterization was carried out by applying various techniques including FT-IR, SEM, TGA and elemental analysis. The SiN-imd-py adsorbent shows a good selectivity and high adsorption capacity towards Cu(II) and reached 100 mg/g at pH = 6 and T = 25 °C. This adsorption capacity is important compared to other similar adsorbents which are currently published. The adsorption mechanism, thermodynamics, reusability and the effect of different experimental conditions, such as contact time, pH and temperature, on the adsorption process, were also investigated. In addition, a theoretical study was carried out to understand the adsorption mechanism and the active sites of the adsorbent, as well as the stability of the complex formed and the nature of the bonds.
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Affiliation(s)
- Rafik Saddik
- Laboratory of Organic Synthesis, Extraction and Valorization, Faculty of Sciences Ain Chock, Hassan II University, Casablanca 20000, Morocco
- Correspondence: (R.S.); (S.T.)
| | - Imad Hammoudan
- Laboratory of Organic Synthesis, Extraction and Valorization, Faculty of Sciences Ain Chock, Hassan II University, Casablanca 20000, Morocco
| | - Said Tighadouini
- Laboratory of Organic Synthesis, Extraction and Valorization, Faculty of Sciences Ain Chock, Hassan II University, Casablanca 20000, Morocco
- Correspondence: (R.S.); (S.T.)
| | - Othmane Roby
- Laboratory of Organic Synthesis, Extraction and Valorization, Faculty of Sciences Ain Chock, Hassan II University, Casablanca 20000, Morocco
| | - Smaail Radi
- Laboratory of applied Chemistry and Environment (LCAE), Faculty of Sciences, Mohamed Premier University, Oujda 60000, Morocco
| | - Maha I. Al-Zaben
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Abir Ben Bacha
- Biochemistry Department, College of Science, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia
- Laboratory of Plant Biotechnology Applied to Crop Improvement, Faculty of Science of Sfax, University of Sfax, Sfax 3038, Tunisia
| | - Vijay H. Masand
- Department of Chemistry, Vidya Bharati Mahavidyalaya, Amravati 444 602, India
| | - Zainab M. Almarhoon
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
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11
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El-Sayed NNE, Almaneai NM, Ben Bacha A, El-Ashrey MK, Al-Zaben MI, Almarhoon ZM. Biological Evaluation, Molecular Docking Analyses, and ADME Profiling of Certain New Quinazolinones as Anti-colorectal Agents. ACS Omega 2022; 7:18443-18458. [PMID: 35694504 PMCID: PMC9178606 DOI: 10.1021/acsomega.2c00812] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Accepted: 04/29/2022] [Indexed: 06/15/2023]
Abstract
Colorectal carcinogenesis is a complex process, which is linked to dysregulation of human secretory phospholipases A2 (hsPLA2-G-IIA, hsPLA2-G-V, and hsPLA2-G-X), proteases (cathepsin-B, collagenase, thrombin, elastase, and trypsin), carbohydrate hydrolyzing enzymes (α-amylase and α-glucosidase), and free radical generating enzyme (xanthine oxidoreductase (XOR)). Therefore, some new quinazolinones were synthesized and evaluated as inhibitors against this array of enzymes as well as cytotoxic agents on LoVo and HCT-116 cells of colorectal cancer. Compounds 3g, 10, 8, 3c, and 1c exhibited promising cytotoxic effects with IC50 values ranging from 206.07 to 459.79 μM. Nine compounds showed promising enzymatic inhibitory effects, 3b, 3d, 3f, 5, 1a, and 12 (α-amylase), 8 (thrombin, elastase and trypsin), 10 (hsPLA2-G-IIA and hsPLA2-G-V), and 3f (α-glucosidase and XOR). Therefore, the most active inhibitors, were subjected to validated molecular docking studies to identify their affinities and binding modes. The expected physicochemical and pharmacokinetic features of the active candidates, 1a, 1c, 3b, 3c, 3d, 3f, 3g, 5, 8, 10, and 12 were predicted using bioavailability radar charts and boiled-egg graphical representations along with the Lipinski rule of five filter. Collectively, these studies showed the significance of derivatives 1c, 3b, 3c, 3d, 8, 10, and 12 as lead scaffolds for further optimization to develop enzymes inhibitors and anti-colorectal agents.
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Affiliation(s)
- Nahed N. E. El-Sayed
- National
Organization for Drug Control and Research, Egyptian Drug Authority, 51 Wezaret El-Zerra Street, Giza 35521, Egypt
| | - Norah M. Almaneai
- Department
of Chemistry, College of Science, King Saud
University, P. O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Abir Ben Bacha
- Biochemistry
Department, College of Science, King Saud
University, P. O. Box 22452, Riyadh 11495, Saudi Arabia
- Laboratory
of Plant Biotechnology Applied to Crop Improvement, Faculty of Science
of Sfax, University of Sfax, Sfax 3038, Tunisia
| | - Mohamed K. El-Ashrey
- Pharmaceutical
Chemistry Department, Faculty of Pharmacy, Cairo University, Kasr Elini Street, Cairo 11562, Egypt
- Medicinal
Chemistry Department, Faculty of Pharmacy, King Salman International University, Ras-Sedr, South Sinai, Egypt
| | - Maha I. Al-Zaben
- Department
of Chemistry, College of Science, King Saud
University, P. O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Zainab M. Almarhoon
- Department
of Chemistry, College of Science, King Saud
University, P. O. Box 2455, Riyadh 11451, Saudi Arabia
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12
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Alonazi M, Karray A, Jallouli R, Ben Bacha A. Biochemical, Kinetic and Biological Properties of Group V Phospholipase A2 from Dromedary. Molecules 2022; 27:molecules27113437. [PMID: 35684381 PMCID: PMC9182273 DOI: 10.3390/molecules27113437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 05/19/2022] [Accepted: 05/23/2022] [Indexed: 11/16/2022]
Abstract
Secretory group V phospholipase A2 (PLA2-V) is known to be involved in inflammatory processes in cellular studies, nevertheless, the biochemical and the enzymatic characteristics of this important enzyme have been unclear yet. We reported, as a first step towards understanding the biochemical properties, catalytic characteristics, antimicrobial and cytotoxic effects of this PLA2, the production of PLA2-V from dromedary. The obtained DrPLA2-V has an absolute requirement for Ca2+ and NaTDC for enzymatic activity with an optimum pH of 9 and temperature of 45 °C with phosphatidylethanolamine as a substrate. Kinetic parameters showed that Kcat/Kmapp is 2.6 ± 0.02 mM−1 s−1. The enzyme was found to display potent Gram-positive bactericidal activity (with IC50 values of about 5 µg/mL) and antifungal activity (with IC50 values of about 25 µg/mL)in vitro. However, the purified enzyme did not display a cytotoxic effect against cancer cells.
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Affiliation(s)
- Mona Alonazi
- Biochemistry Department, Science College, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia;
| | - Aida Karray
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases, ENIS Route de Soukra, Université de Sfax-Tunisia, Sfax 3038, Tunisia;
| | - Raida Jallouli
- Institut de Pharmacologie de Sherbrooke, Université de Sherbrooke, Sherbrooke, QC J1H 5N4, Canada;
| | - Abir Ben Bacha
- Biochemistry Department, Science College, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia;
- Laboratory of Plant Biotechnology Applied to Crop Improvement, Faculty of Science of Sfax, University of Sfax, Sfax 3038, Tunisia
- Correspondence: ; Tel.: +966-504-784-639
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13
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Malhi D, Sohal HS, Singh K, Almarhoon ZM, Bacha AB, Al-Zaben MI. Highly Efficient Electrocarboxylation Method to Synthesize Novel Acid Derivatives of 1,4-Dihydropyridines and to Study Their Antimicrobial Activity. ACS Omega 2022; 7:16055-16062. [PMID: 35571772 PMCID: PMC9097205 DOI: 10.1021/acsomega.2c01316] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 04/14/2022] [Indexed: 05/08/2023]
Abstract
1,4-Dihydropyridines (1,4-DHPs) hold a top-notch position in the pharmaceutical world due to a broader spectrum of applications, whereas the carboxylic moiety has been an integral part of the physiological world, effective food preservatives, and antimicrobial agents. Seeking the enormous potential and applications of these two classes, we worked to combine these to synthesize 2,2'-[3,5-bis(ethoxycarbonyl)-4-phenyl-1,4-dihydropyridine-2,6-diyl]diacetic acid the novel dicarboxylic derivatives of 1,4-DHP (9a-k) achieved via the electro-carboxylation of tetrasubstituted-1,4-dihydropyridines (8a-k) derivatives using Mg-Pt electrodes in an undivided cell. The targeted compounds were established by 1H, 13C NMR, IR, and ESI-MS. Further, the synthesized compounds show excellent resistance against various microbes and the activity increased 2-3 folds after the introduction of acid groups. Compound 9b (against E. coli, S. aureus, B. subtilis, A. niger, and P. glabrum), 9d (against E. coli, K. pneumonia, S. aureus, A. janus, and F. oxysporum), 9f (against E. coli and P. fluorescens), and 9k (against F. oxysporum and P. glabrum) were found to be highly active at 4 μg/mL with reference to standard amoxicillin and fluconazole. Further, the present synthetic protocol would open new gates for other researchers to develop new molecules by bioisosteres of these substrates.
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Affiliation(s)
- Dharambeer
S. Malhi
- Department
of Chemistry, Chandigarh University, Gharuan 140413, Mohali, Punjab India
| | - Harvinder S. Sohal
- Department
of Chemistry, Chandigarh University, Gharuan 140413, Mohali, Punjab India
| | - Kishanpal Singh
- Department
of Chemistry, Punjabi University, Patiala 147002, Punjab India
| | - Zainab M. Almarhoon
- Department
of Chemistry, College of Sciences, King
Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Abir Ben Bacha
- Biochemistry
Department, College of Sciences, King Saud
University, Riyadh 11451, Saudi Arabia
| | - Maha I. Al-Zaben
- Department
of Chemistry, College of Sciences, King
Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
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14
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Alonazi M, Ben Bacha A, Al Suhaibani A, Almnaizel AT, Aloudah HS, El-Ansary A. Psychobiotics improve propionic acid-induced neuroinflammation in juvenile rats, rodent model of autism. Transl Neurosci 2022; 13:292-300. [PMID: 36133749 PMCID: PMC9462542 DOI: 10.1515/tnsci-2022-0226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Revised: 06/02/2022] [Accepted: 06/02/2022] [Indexed: 11/15/2022] Open
Abstract
This study aimed to evaluate the protective and therapeutic potency of bee pollen and probiotic mixture on brain intoxication caused by propionic acid (PPA) in juvenile rats. Five groups of six animals each, were used: the control group only receiving phosphate-buffered saline; the bee pollen and probiotic-treated group receiving a combination of an equal quantity of bee pollen and probiotic (0.2 kg/kg body weight); the PPA group being treated for 3 days with an oral neurotoxic dose of PPA (0.25 kg/kg body weight); the protective and therapeutic groups receiving bee pollen and probiotic mixture treatment right before and after the neurotoxic dose of PPA, respectively. The levels of interleukin (IL)-1ß, IL-6, IL-8, IL-10, IL-12, tumor necrosis factor α, and interferon γ (IFN-γ) were investigated to evaluate the neuroinflammatory responses in brain tissues from different animal groups. The much higher IL-1β, IL-8, and IFN-γ, as pro-inflammatory cytokines (P < 0.001), together with much lower IL-10, as anti-inflammatory cytokine (P < 0.001) compared to controls clearly demonstrated the neurotoxic effects of PPA. Interestingly, the mixture of bee pollen and probiotics was effective in alleviating PPA neurotoxic effects in both therapeutic and protective groups demonstrating highly significant changes in IL-1β, IL-8, IL-10, and IFN-γ levels together with non-significant reduction in IL-6 levels compared to PPA-treated rats. Overall, our findings demonstrated a new approach to the beneficial use of psychobiotics presenting as bee pollen and probiotic combination in neuroinflammation through cytokine changes as a possible role of glial cells in gut–brain axis.
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Affiliation(s)
- Mona Alonazi
- Biochemistry Department, Science College, King Saud University, Riyadh 11495, Saudi Arabia
| | - Abir Ben Bacha
- Biochemistry Department, Science College, King Saud University, P.O Box 22452, Riyadh 11495, Saudi Arabia.,Laboratory of Plant Biotechnology Applied to Crop Improvement, Faculty of Science of Sfax, University of Sfax, Sfax, Tunisia
| | - Anwar Al Suhaibani
- Biochemistry Department, Science College, King Saud University, Riyadh 11495, Saudi Arabia
| | - Ahmad T Almnaizel
- Experimental Surgery and Animal Laboratory, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Hisham S Aloudah
- Experimental Surgery and Animal Laboratory, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Afaf El-Ansary
- Central Laboratory, King Saud University, Riyadh, Saudi Arabia
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15
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Kamal S, Derbala HA, Alterary SS, Ben Bacha A, Alonazi M, El-Ashrey MK, Eid El-Sayed NN. Synthesis, Biological, and Molecular Docking Studies on 4,5,6,7-Tetrahydrobenzo[ b]thiophene Derivatives and Their Nanoparticles Targeting Colorectal Cancer. ACS Omega 2021; 6:28992-29008. [PMID: 34746589 PMCID: PMC8567357 DOI: 10.1021/acsomega.1c04063] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Accepted: 09/29/2021] [Indexed: 06/13/2023]
Abstract
Initiation of colorectal carcinogenesis may be induced by chromosomal instability caused by oxidative stress or indirectly by bacterial infections. Moreover, proliferating tumor cells are characterized by reprogrammed glucose metabolism, which is associated with upregulation of PDK1 and LDHA enzymes. In the present study, some 4,5,6,7-tetrahydrobenzo[b]thiophene derivatives in addition to Fe3O4 and Fe3O4/SiO2 nanoparticles (NPs) supported with a new Schiff base were synthesized for biological evaluation as PDK1 and LDHA inhibitors as well as antibacterial, antioxidant, and cytotoxic agents on LoVo and HCT-116 cells of colorectal cancer (CRC). The results showed that compound 1b is the most active as PDK1 and LDHA inhibitor with IC50 values (μg/mL) of 57.10 and 64.10 compared to 25.75 and 15.60, which were produced by the standard inhibitors sodium dichloroacetate and sodium oxamate, respectively. NPs12a,b and compound 1b exhibited the strongest antioxidant properties with IC50 values (μg/mL) of 80.0, 95.0, and 110.0 μg/mL, respectively, compared to 54.0 μg/mL, which was produced by butylated hydroxy toluene. Moreover, NPs12a and carbamate derivative 3b exhibited significant cytotoxic activities with IC50 values (μg/mL) of 57.15 and 81.50 (LoVo cells) and 60.35 and 71.00 (HCT-116 cells). Thus, NPs12a and compound 3b would be considered as promising candidates suitable for further optimization to develop new chemopreventive and chemotherapeutic agents against these types of CRC cell lines. Besides, molecular docking in the colchicine binding site of the tubulin (TUB) domain revealed a good binding affinity of 3b to the protein; in addition, the absorption, distribution, metabolism, and excretion (ADME) analyses showed its desirable drug-likeness and oral bioavailability characteristics.
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Affiliation(s)
- Shimaa Kamal
- Chemistry
Department, Faculty of Science, Ain Shams
University, Abbassia, Cairo 11566, Egypt
| | - Hamed Ahmed Derbala
- Chemistry
Department, Faculty of Science, Ain Shams
University, Abbassia, Cairo 11566, Egypt
| | - Seham Soliman Alterary
- Department
of Chemistry, College of Science, King Saud
University, P.O. Box 50013, Riyadh 11523, Saudi Arabia
| | - Abir Ben Bacha
- Biochemistry
Department, College of Science, King Saud
University, P.O. Box 22452, Riyadh 11495, Saudi Arabia
| | - Mona Alonazi
- Biochemistry
Department, College of Science, King Saud
University, P.O. Box 22452, Riyadh 11495, Saudi Arabia
| | - Mohamed Kandeel El-Ashrey
- Pharmaceutical
Chemistry Department, Molecular Modeling Unit, Faculty of Pharmacy, Cairo University, Kasr Elini Street, Cairo 11562, Egypt
| | - Nahed Nasser Eid El-Sayed
- National
Organization for Drug Control and Research, Egyptian Drug Authority, 51 Wezaret El-Zerra Street, Giza 35521, Egypt
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16
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Ben Bacha A, Al-Orf N, Alonazi M, Bhat RS, El-Ansary A. The anti-inflammatory and antiapoptotic effects of probiotic on induced neurotoxicity in juvenile hamsters. Food Sci Nutr 2021; 9:4874-4882. [PMID: 34531999 PMCID: PMC8441441 DOI: 10.1002/fsn3.2435] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 05/04/2021] [Accepted: 05/06/2021] [Indexed: 12/12/2022] Open
Abstract
Brain inflammation and apoptosis play crucial roles in the pathogenesis of various neurodevelopmental disorders. Probiotics have been shown to confer protection against many stresses, including apoptosis and inflammation, by modulating the gut function. The short-chain fatty acid, propionic acid (PPA), plays an important intermediate of cellular metabolism. Although PPA exhibits numerous beneficial biological effects, its accumulation is neurotoxic. This study focused on the therapeutic potency of probiotics against PPA-induced apoptosis and neuroinflammation in hamsters. Five groups of male golden Syrian hamsters were treated as follows: Group I as control; Group II as PPA-treated with three doses of 250 mg PPA/kg/day; Group III as clindamycin-treated with a single dose of 30 mg clindamycin/kg; Group IV as PPA-probiotic; and Group V as clindamycin-probiotic were two therapeutic groups which were treated with the same doses of PPA and clindamycin, respectively, followed by treatment with 0.2 g kg-1 d-1 of probiotic (ProtexinR, Probiotics International Limited) for three weeks. Proapoptotic markers, such as caspases 3 and 7; neuroinflammation markers, such as interleukins 1β and 8; and heat shock protein 70 were measured in the brain. Significant increase of all measured markers (p ˂ .001) was observed in PPA and clindamycin-treated hamsters compared with controls. Probiotics significantly reduced the damages and ameliorated all the test markers in both therapeutic groups compared with the control. Our results confirmed that probiotics can be utilized as a feasible strategy for managing apoptotic and inflammation-related stresses in brain disorders by retaining the gut function.
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Affiliation(s)
- Abir Ben Bacha
- Biochemistry Department Science College King Saud University Riyadh Saudi Arabia.,Laboratory of Plant Biotechnology Applied to Crop Improvement Faculty of Science of Sfax University of Sfax Sfax Tunisia
| | - Norah Al-Orf
- Biochemistry Department Science College King Saud University Riyadh Saudi Arabia
| | - Mona Alonazi
- Biochemistry Department Science College King Saud University Riyadh Saudi Arabia
| | - Ramesa Shafi Bhat
- Biochemistry Department Science College King Saud University Riyadh Saudi Arabia
| | - Afaf El-Ansary
- Central Laboratory King Saud University Riyadh Saudi Arabia
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17
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Al Suhaibani A, Ben Bacha A, Alonazi M, Bhat RS, El‐Ansary A. Testing the combined effects of probiotics and prebiotics against neurotoxic effects of propionic acid orally administered to rat pups. Food Sci Nutr 2021; 9:4440-4451. [PMID: 34401092 PMCID: PMC8358352 DOI: 10.1002/fsn3.2418] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Revised: 05/31/2021] [Accepted: 06/01/2021] [Indexed: 11/13/2022] Open
Abstract
The present study investigated the combined effects of mixed probiotic and bee pollen on brain intoxication induced by propionic acid (PPA) in rat pups. Thirty western albino rats were divided into five groups, six animals each: (1) Control group receiving phosphate-buffered saline; (2) Probiotic and bee pollen-treated group being administered at the same dose with 200 mg/kg body weight; (c) PPA-treated group receiving a neurotoxic dose 250 mg/kg body weight of PPA for 3 days; (d) Therapeutic group being administered the neurotoxic dose of PPA followed by probiotic and bee pollen treatment 200 mg/kg body weight; (e) Protective group receiving probiotic and bee pollen mixture treatment followed by neurotoxic dose of PPA. Selected biochemical parameters linked to oxidative stress, energy metabolism, and neurotransmission were investigated in brain homogenates from all the five groups. PPA treatment showed an increase in oxidative stress markers like lipid peroxidation coupled with a significant decrease in glutathione level. Impaired energy metabolism was ascertained via the alteration of creatine kinase (CK) and lactate dehydrogenase (LDH) activities. Dramatic increase of Na+ and K+ concentrations together with a decrease of GABA and IL-6 and an elevation of glutamate levels in PPA-treated rat's pups confirmed the neurotoxicity effect of PPA. Interestingly, the mixed probiotic and bee pollen treatment were effective in restoring the levels of glutamate, GABA, and IL-6 in addition to normalizing the levels of lipid peroxidation and glutathione and the activities of CK and LDH. The present study indicates that mixed probiotic and bee pollen treatment can improve poor detoxification, oxidative stress, and neuroinflammation as mechanisms implicated in the etiology of autism.
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Affiliation(s)
- Anwar Al Suhaibani
- Biochemistry DepartmentScience CollegeKing Saud UniversityRiyadhSaudi Arabia
| | - Abir Ben Bacha
- Biochemistry DepartmentScience CollegeKing Saud UniversityRiyadhSaudi Arabia
- Laboratory of Plant Biotechnology Applied to Crop ImprovementFaculty of Science of SfaxUniversity of SfaxSfaxTunisia
| | - Mona Alonazi
- Biochemistry DepartmentScience CollegeKing Saud UniversityRiyadhSaudi Arabia
| | - Ramesa Shafi Bhat
- Biochemistry DepartmentScience CollegeKing Saud UniversityRiyadhSaudi Arabia
| | - Afaf El‐Ansary
- Central LaboratoryKing Saud UniversityRiyadhSaudi Arabia
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18
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Al-Dbass A, Bacha AB, Moubayed NM, Bhat RS, Al-Mutairi M, Alnakhli OM, Al-Mrshoud M, Alfawaz H, Daghestani M, El-Ansary A. Comparative Studies on Phospholipase A2 as a Marker for Gut Microbiota- liver-brain Axis in a rodent Model of Autism. CURR PROTEOMICS 2021. [DOI: 10.2174/1570164617999200519100634] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
Lipid homeostasis and gut flora can be related to many metabolic diseases,
especially autism. Lipid metabolism in the brain can control neuronal structure and function and
can also take part in signal transduction pathways to control metabolism in peripheral tissues, especially
in the liver. Impaired phospholipid metabolism promotes oxidative stress and neuroinflammation
and is, therefore, directly related to autism.
Objective:
The effect of propionic acid (PPA) toxicity on lipid homeostasis in the gut-liver-brain
axis was evaluated to understand their inter-connection. Cytosolic phospholipase A2 (cPLA2) concentration
and activity was measured in autistic model and protective role of omega-3 (ω-3) and vitamin
B12 was evaluated.
Methods:
Animals were divided into five groups: Group I (control group); Group II (autistic model
treated with neurotoxic dose of PPA); Group III (treated with vitamin B12 (16.7 mg/kg/day) for 30
days post PPA treatment); Group IV (treated with ω-3 (200 mg/kg body weight/day) for 30 days
post PPA treatment; Group V (combined dose of ω-3 and Vitamin B12, for 30 days post PPA treatment).
Phospholipase A2 activity and protein expression level in the liver homogenate of all the
groups was analyzed by western blotting and was compared to brain cPLA2.
Results:
PPA increased the levels of liver and brain cPLA2. However, independent or combined
treatment with ω-3 and vitamin B12 was effective in neutralizing its effect. Moreover, PPA-induced
dysbiosis, which was ameliorated with the above treatments.
Conclusions:
This study showed the role of cPLA2 as a lipid metabolism marker, related to PPA-induced
inflammation through a highly interactive gut-liver-brain axis.
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Affiliation(s)
- Abeer Al-Dbass
- Biochemistry Department, College of Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Abir Ben Bacha
- Biochemistry Department, College of Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Nadine M.S. Moubayed
- Botany and Microbiology Department, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Ramesa Shafi Bhat
- Biochemistry Department, College of Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Manar Al-Mutairi
- Central Laboratory, Female Centre for Scientific and Medical Studies, King Saud University, Riyadh, Saudi Arabia
| | - Osima M. Alnakhli
- Central laboratory, Female Centre for Scientific and Medical Studies, King Saud University, Riyadh, Saudi Arabia
| | - Majidh Al-Mrshoud
- Central laboratory, Female Centre for Scientific and Medical Studies, King Saud University, Riyadh, Saudi Arabia
| | - Hanan Alfawaz
- Department of Food Science and Nutrition, College of Food Science and Agriculture, Saudi Arabia
| | - Maha Daghestani
- Zoology Department, College of Science, King Saud University, Saudi Arabia
| | - Afaf El-Ansary
- Central laboratory, Female Centre for Scientific and Medical Studies, King Saud University, Riyadh, Saudi Arabia
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Alonazi MA, Jemel I, Moubayed N, Alwhibi M, El-Sayed NNE, Ben Bacha A. Evaluation of the in vitro anti-inflammatory and cytotoxic potential of ethanolic and aqueous extracts of Origanum syriacum and Salvia lanigera leaves. Environ Sci Pollut Res Int 2021; 28:19890-19900. [PMID: 33405122 DOI: 10.1007/s11356-020-11961-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 12/02/2020] [Indexed: 06/12/2023]
Abstract
In this study, the chemical compositions of the ethanolic and aqueous extracts of the leaves of Origanum syriacum and Salvia lanigera were identified based on GC-MS spectrometric analyses. The in vitro anti-inflammatory potential of the different extracts was evaluated by determining the membrane stabilization of human red blood cells and the percent inhibition of the COX1/2, 5LOX, and sPLA2-V enzymes. Both ethanolic extracts showed maximum membrane stabilization (≤ 91%, at 100 μg/mL) compared to the aqueous extracts (≤ 45%) and the reference drug diclofenac sodium (90.75%). The membrane-stabilizing effects of the ethanolic extracts could be directly correlated to their anti-inflammatory activity. While both ethanolic fractions strongly inhibited the 5LOX and COX-1 enzymes at 100 μg/mL, only the O. syriacum ethanolic extract selectively inhibited sPLA2-V (99.35%, at 50 μg/mL). The differences in the pharmacological efficiencies of the different extracts could be attributed to the variation in their chemical compositions particularly the content of oxygenated monoterpenoids. Additionally, none of the ethanolic extracts demonstrated cytotoxicity to human colorectal cancer cell lines (HCT-116 and Lovo), even at the highest concentration tested (200 μg/mL). The safe profiles of these extracts towards the tested cell lines may be due to the absence of the toxic phthalic acid ester substances. Collectively, these findings clearly suggest that the studied ethanolic extracts of O. syriacum and S. lanigera can be considered interesting candidates for the treatment of human inflammatory diseases related to oxidative stress and microbial infections.
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Affiliation(s)
- Mona Awad Alonazi
- Biochemistry Department, Science College, King Saud University, P.O. Box 22452, Riyadh, 11495, Saudi Arabia
| | - Ikram Jemel
- Laboratory of Plant Biotechnology Applied to Crop Improvement, Faculty of Science of Sfax, University of Sfax, 3038, Sfax, Tunisia
| | - Nadine Moubayed
- Botany and Microbiology Department, Science College, King Saud University, P.O. Box 22452, Riyadh, 11495, Saudi Arabia
| | - Mona Alwhibi
- Botany and Microbiology Department, Science College, King Saud University, P.O. Box 22452, Riyadh, 11495, Saudi Arabia
| | - Nahed Nasser E El-Sayed
- Egyptian Drug Authority (Formerly; National Organization For Drug Control And Research), Agouza, Giza, Egypt
| | - Abir Ben Bacha
- Biochemistry Department, Science College, King Saud University, P.O. Box 22452, Riyadh, 11495, Saudi Arabia.
- Laboratory of Plant Biotechnology Applied to Crop Improvement, Faculty of Science of Sfax, University of Sfax, 3038, Sfax, Tunisia.
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Al-Nemari R, Al-Senaidy A, Semlali A, Ismael M, Badjah-Hadj-Ahmed AY, Ben Bacha A. GC-MS profiling and assessment of antioxidant, antibacterial, and anticancer properties of extracts of Annona squamosa L. leaves. BMC Complement Med Ther 2020; 20:296. [PMID: 33023568 PMCID: PMC7541211 DOI: 10.1186/s12906-020-03029-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Accepted: 07/16/2020] [Indexed: 02/07/2023] Open
Abstract
Background The research and application of plants in food supplements and drugs have attracted great interest. This study aimed to examine the efficiency of several solvents for the extraction of the main compounds from Annona squamosa leaves and to evaluate the antioxidant, antibacterial, and anticancer activities of these extracts. Methods Gas chromatography-mass spectrometry was used to screen the bioactive compounds of A. squamosa methanolic extract. The free radical, hydrogen peroxide, and nitric oxide scavenging activities of the extracts were investigated. Furthermore, MTT, nuclear staining, LDH, and monolayer wound repair assays were performed to evaluate the potential anticancer activity of the extracts in colon cancer cells while the antibacterial activity was tested by using a well diffusion assay. Results A. squamosa leaves extracts were found to contain several bioactive compounds, of which the majority were sesquiterpenes (C15H24). These extracts exhibited strong antioxidant activity and antibacterial potency against both gram-positive and gram-negative bacteria. Different A. squamosa leaves extracts displayed remarkable antiproliferative, cytotoxic, antimigration, and apoptotic activities in colon cancer cells. Conclusions A. squamosa leaves contain major bioactive compounds that inhibit the growth of several types of bacteria and colon cancer cell lines, which demonstrated their efficacy as an alternative source of antibiotics and for the development of novel drugs for colon cancer therapy.
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Affiliation(s)
- Rawan Al-Nemari
- Protein Research Chair, Department of Biochemistry, College of Science, King Saud University, Riyadh, Kingdom of Saudi Arabia
| | - Abdulrahman Al-Senaidy
- Protein Research Chair, Department of Biochemistry, College of Science, King Saud University, Riyadh, Kingdom of Saudi Arabia
| | - Abdelhabib Semlali
- Groupe de Recherche en Écologie Buccale, Faculté de Médecine Dentaire, Université Laval, Québec, Canada
| | - Mohammad Ismael
- Protein Research Chair, Department of Biochemistry, College of Science, King Saud University, Riyadh, Kingdom of Saudi Arabia
| | - Ahmed Yacine Badjah-Hadj-Ahmed
- Advanced Materials Research Chair, Department of Chemistry, College of Science, King Saud University, Riyadh, Kingdom of Saudi Arabia
| | - Abir Ben Bacha
- Department of Biochemistry, College of Science, King Saud University, Riyadh, Kingdom of Saudi Arabia. .,Laboratory of Plant Biotechnology Applied to Crop Improvement, Faculty of Science of Sfax, University of Sfax, Sfax, Tunisia.
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El-Ansary A, Hassan WM, Daghestani M, Al-Ayadhi L, Ben Bacha A. Preliminary evaluation of a novel nine-biomarker profile for the prediction of autism spectrum disorder. PLoS One 2020; 15:e0227626. [PMID: 31945130 PMCID: PMC6964874 DOI: 10.1371/journal.pone.0227626] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Accepted: 12/23/2019] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Autism spectrum disorder (ASD) is a complex group of heterogeneous neurodevelopmental disorders the prevalence of which has been in the rise in the past decade. In an attempt to better target the basic causes of ASD for diagnosis and treatment, efforts to identify reliable biomarkers related to the body's metabolism are increasing. Despite an increase in identifying biomarkers in ASD, there are none so far with enough evidence to be used in routine clinical examination, unless medical illness is suspected. Promising biomarkers include those of mitochondrial dysfunction, oxidative stress, energy metabolism, and apoptosis. METHODS AND PARTICIPANTS Sodium (Na+), Potassium (K+), glutathione (GSH), glutathione-s-transferase (GST), Creatine kinase (CK), lactate dehydrogenase (LDH), Coenzyme Q10, and melatonin (MLTN) were evaluated in 13 participants with ASD and 24 age-matched healthy controls. Additionally, five ratios, which include Na+/K+, GSH:GST, CK:Cas7, CoQ10: Cas 7, and Cas7:MLTN, were tested to measure their predictive values in discriminating between autistic individuals and controls. These markers, either in absolute values, as five ratios, or combined (9 markers + 5 ratios) were subjected to a principal component analysis and multidimensional scaling (MDS), and hierarchical clustering, which are helpful statistical tools in the field of biomarkers. RESULTS Our data demonstrated that both PCA and MDS analysis were effective in separating autistic from control subjects completely. This was also confirmed through the use of hierarchical clustering, which showed complete separation of the autistic and control groups based on nine biomarkers, five biomarker ratios, or a combined profile. Excellent predictive value of the measured profile was obtained using the receiver operating characteristics analysis, which showed an area under the curve of 1. CONCLUSION The availability of an improved predictive profile, represented by nine biomarkers plus the five ratios, inter-related different etiological mechanisms in ASD and would be valuable in providing greater recognition of the altered biological pathways in ASD. Our predictive profile could be used for the diagnosis and intervention of ASD.
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Affiliation(s)
- Afaf El-Ansary
- Central Laboratory, Center for Female Scientific and Medical Colleges, King Saud University, Riyadh, Saudi Arabia
- Therapeutic Chemistry Department, National Research Centre, Dokki, Cairo, Egypt
- Autism Research and Treatment Center, King Saud University, Riyadh, Saudi Arabia
| | - Wail M. Hassan
- Department of Biomedical Sciences, University of Missouri- Kansas City School of Medicine, Missouri, United States of America
| | - Maha Daghestani
- Central Laboratory, Center for Female Scientific and Medical Colleges, King Saud University, Riyadh, Saudi Arabia
- Zoology Department, Science College, King Saud University, Riyadh, Saudi Arabia
| | - Laila Al-Ayadhi
- Autism Research and Treatment Center, King Saud University, Riyadh, Saudi Arabia
- Department of Physiology, Faculty of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Abir Ben Bacha
- Biochemistry Department, Science College, King Saud University, Riyadh, Saudi Arabia
- Laboratory of Plant Biotechnology Applied to Crop Improvement, Faculty of Science of Sfax, University of Sfax, Tunisia
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Ben Bacha A, Norah AO, Al-Osaimi M, Harrath AH, Mansour L, El-Ansary A. The therapeutic and protective effects of bee pollen against prenatal methylmercury induced neurotoxicity in rat pups. Metab Brain Dis 2020; 35:215-224. [PMID: 31625070 DOI: 10.1007/s11011-019-00496-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2019] [Accepted: 09/12/2019] [Indexed: 12/14/2022]
Abstract
The current study evaluated the protective and therapeutic potency of bee pollen in ameliorating the toxic effects of methylmercury (MeHg), by measuring certain biochemical parameters related to neurotransmission, neuroinflammation, apoptosis, and glutamate excitotoxicity in the male neonate brain. Healthy, pregnant female rats (N = 40) were randomly divided into 5 groups, each comprising10 male neonates, as follows: (i) neonates delivered by control mothers; (ii) neonates delivered by MeHg-treated mothers who received 0.5 mg/kg BW/day MeHg via drinking water from gestational day 7 till postnatal day 7; (iii) neonates delivered by bee pollen treated mothers who received 200-mg/kg BW bee pollen from postnatal day 0 for 4 weeks; (iv) protective group of neonates delivered by MeHg and bee pollen-treated mothers, who continued to receive bee pollen until day 21 at the same dose, and (v) therapeutic group of neonates delivered by MeHg- treated mothers followed by bee pollen treatment, wherein they received 200-mg/kg BW bee pollen from postnatal day 0 for 4 weeks. Selected biochemical parameters in brain homogenates from each group were measured. MeHg-treated groups exhibited various signs of brain toxicity, such as a marked reduction in neurotransmitters (serotonin (5-HT), nor-adrenalin (NA), dopamine (DA)) and gamma aminobutyric acid (GABA) and elevated levels of interferon gamma (IFN-γ), caspase-3, and glutamate (Glu). Bee pollen effectively reduced the neurotoxic effects of MeHg. Minimal changes in all measured parameters were observed in MeHg-treated animals compared to the control group. Therefore, bee pollen may safely improve neurotransmitter defects, inflammation, apoptosis, and glutamate excitotoxicity.
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Affiliation(s)
- Abir Ben Bacha
- Biochemistry Department, Science College, King Saud University, P.O Box 22452, Riyadh, 11495, Saudi Arabia.
- Laboratory of Plant Biotechnology Applied to Crop Improvement, Faculty of Science of Sfax, University of Sfax, Sfax, Tunisia.
| | - Al-Orf Norah
- Biochemistry Department, Science College, King Saud University, P.O Box 22452, Riyadh, 11495, Saudi Arabia
- The Materials Science Research Institute, King Abdulaziz City for Science and Technology, Riyadh, Saudi Arabia
| | - May Al-Osaimi
- Biochemistry Department, Science College, King Saud University, P.O Box 22452, Riyadh, 11495, Saudi Arabia
| | - Abdel Halim Harrath
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Lamjed Mansour
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Afaf El-Ansary
- Central Laboratory, King Saud University, Riyadh, Saudi Arabia
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El-Sayed NNE, Almaneai NM, Ben Bacha A, Al-Obeed O, Ahmad R, Abdulla M, Alafeefy AM. Synthesis and evaluation of anticancer, antiphospholipases, antiproteases, and antimetabolic syndrome activities of some 3H-quinazolin-4-one derivatives. J Enzyme Inhib Med Chem 2019; 34:672-683. [PMID: 30821525 PMCID: PMC6407576 DOI: 10.1080/14756366.2019.1574780] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Revised: 01/17/2019] [Accepted: 01/21/2019] [Indexed: 12/18/2022] Open
Abstract
Some new 3H-quinazolin-4-one derivatives were synthesised and screened for anticancer, antiphospholipases, antiproteases, and antimetabolic syndrome activities. Compound 15d was more potent in reducing the cell viabilities of HT-29 and SW620 cells lines to 38%, 36.7%, compared to 5-FU which demonstrated cell viabilities of 65.9 and 42.7% respectively. The IC50 values of 15d were ∼20 µg/ml. Assessment of apoptotic activity revealed that 15d decreased the cell viability by down regulating Bcl2 and BclxL. Moreover, compounds, 8j, 8d/15a/15e, 5b, and 8f displayed lowered IC50 values than oleanolic acid against proinflammatory isoforms of hGV, hG-X, NmPLA2, and AmPLA2. In addition, 8d, 8h, 8j, 15a, 15b, 15e, and 15f showed better anti-α-amylase than quercetin, whereas 8g, 8h, and 8i showed higher anti-α-glucosidase activity than allopurinol. Thus, these compounds can be considered as potential antidiabetic agents. Finally, none of the compounds showed higher antiproteases or xanthine oxidase activities than the used reference drugs.
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Affiliation(s)
- Nahed N. E. El-Sayed
- Department of Chemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
- National Organization for Drug Control and Research, Giza, Egypt
| | - Norah M. Almaneai
- Department of Chemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Abir Ben Bacha
- Biochemistry Department, College of Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Omar Al-Obeed
- Department of Surgery, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Rehan Ahmad
- Department of Surgery, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Maha Abdulla
- Department of Surgery, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Ahmed M. Alafeefy
- Department of Chemistry, Kulliyyah of Science, International Islamic University Malaysia, Kuantan, Pahang Darul Makmur, Malaysia
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Saud Al-Bagmi M, Shahnawaz Khan M, Alhasan Ismael M, Al-Senaidy AM, Ben Bacha A, Mabood Husain F, Alamery SF. An efficient methodology for the purification of date palm peroxidase: Stability comparison with horseradish peroxidase (HRP). Saudi J Biol Sci 2019; 26:301-307. [PMID: 31485169 PMCID: PMC6717102 DOI: 10.1016/j.sjbs.2018.04.002] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2017] [Revised: 03/02/2018] [Accepted: 04/01/2018] [Indexed: 11/28/2022] Open
Abstract
In the present study, Peroxidase from date palm (Phoenix dactylifera) leaves was purified to homogeneity by three-step procedure including aqueous two-phase system, hydrophobic and Ion-exchange chromatography. The enzyme migrated as single band on SDS-PAGE giving molecular weight of 68 ± 3 kDa. The purification factor for purified date palm peroxidase was 68 with high 41% yield. Enzymatic assays together with far-UV circular dichroism (CD), intrinsic and extrinsic fluorescence studies were carried out to monitor the structural stability of date palm and horseradish peroxidase (HRP) against various pH and temperatures. Activity measurements illustrated different pH stability for date palm and HRP. Both peroxidases are more susceptible to extreme acidic conditions as suggested by 4 & 15 nm red shift in date palm and HRP, respectively. Secondary structure analysis using far UV-CD exhibited predominance of α-helical (43.8%) structure. Also, pH induces loss in the secondary structure of date palm peroxidase. Thermal stability analysis revealed date palm peroxidase is more stable in comparison to HRP. In summary, date palm peroxidases could be promising enzymes for various applications where extreme pH and temperature is required.
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Affiliation(s)
- Moneera Saud Al-Bagmi
- Protein Research Chair, Department of Biochemistry, College of Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Mohd Shahnawaz Khan
- Protein Research Chair, Department of Biochemistry, College of Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Mohamad Alhasan Ismael
- Protein Research Chair, Department of Biochemistry, College of Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Abdulrahman M. Al-Senaidy
- Protein Research Chair, Department of Biochemistry, College of Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Abir Ben Bacha
- Protein Research Chair, Department of Biochemistry, College of Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Fohad Mabood Husain
- Department of Food and Agriculture science, King Saud University, Riyadh, Saudi Arabia
| | - Salman Freeh Alamery
- Center of Excellence in Biotechnology Research, Dept. Of Biochemistry, College of Science, King Saud University, Saudi Arabia
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Al-Orf N, El-Ansary A, Bjørklund G, Moubayed N, Bhat RS, Bacha AB. Correction to: Therapeutic effects of probiotics on neurotoxicity induced by clindamycin and propionic acid in juvenile hamsters. Metab Brain Dis 2018; 33:1821. [PMID: 30171513 DOI: 10.1007/s11011-018-0304-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The original version of this article unfortunately contained a mistake. The family name of the fourth author listed in the title was incorrect, and the correct name is Nadine Moubayed, as noted in the addresses. Her name is now corrected in the author group of this article.
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Affiliation(s)
- Nora Al-Orf
- Department of Biochemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
- The Materials Science Research Institute, King Abdulaziz City for Science and Technology, Riyadh, Saudi Arabia
| | - Afaf El-Ansary
- Central Laboratory, King Saud University, Riyadh, Saudi Arabia
| | - Geir Bjørklund
- Council for Nutritional and Environmental Medicine, Toften 24, 8610, Mo i Rana, Norway.
| | - Nadine Moubayed
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Ramesa Shafi Bhat
- Department of Biochemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Abir Ben Bacha
- Department of Biochemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
- Laboratory of Plant Biotechnology Applied to Crop Improvement, Faculty of Science of Sfax, University of Sfax, Sfax, Tunisia
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Al-Orf N, El-Ansary A, Bjørklund G, Moubayed N, Bhat RS, Bacha AB. Therapeutic effects of probiotics on neurotoxicity induced by clindamycin and propionic acid in juvenile hamsters. Metab Brain Dis 2018; 33:1811-1820. [PMID: 30019266 DOI: 10.1007/s11011-018-0284-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Accepted: 06/29/2018] [Indexed: 10/28/2022]
Abstract
The present study investigated the therapeutic effects of probiotics on brain intoxication induced by clindamycin and propionic acid (PPA) in hamsters. Fifty golden Syrian hamsters were randomly divided into five experimental groups of ten animals each: (A) control group receiving phosphate buffered saline; (B) oral buffered PPA-treated group being administered with a neurotoxic dose of 250 mg/kg PPA during three days; (C) oral clindamycin-treated group receiving a single dose of 30 mg clindamycin/kg; and (D, E) the two therapeutic groups being administered the same doses of clindamycin and PPA followed by probiotics for three weeks at a daily dose of 0.2 g/kg. Biochemical parameters of energy metabolism and oxidative stress were examined in brain homogenates from all hamsters. The development of pathogenic bacteria was monitored on stool samples from all hamsters. Descriptive changes in fecal microbiota and overgrowth of Clostridium species in clindamycin and PPA treated hamsters were recorded. Interestingly, probiotics were shown effective to restore normal gut microbiota. Clindamycin and PPA treatments caused an elevation in lipid peroxidation and catalase activity, as oxidative stress markers, together with a reduction in GST activity and GSH level. Energy metabolism impairment was ascertained via the activation of creatine kinase and a decrease of lactate dehydrogenase. These findings suggest that bacteria overgrowth caused by PPA and clindamycin was efficient to illustrate signs of neuronal toxicity. The present study indicates that probiotic treatment can improve poor detoxification, oxidative stress, and altered gut microbiota as mechanisms implicated in the etiology of many neurological disorders.
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Affiliation(s)
- Nora Al-Orf
- Department of Biochemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
- The Materials Science Research Institute, King Abdulaziz City for Science and Technology, Riyadh, Saudi Arabia
| | - Afaf El-Ansary
- Central Laboratory, King Saud University, Riyadh, Saudi Arabia
| | - Geir Bjørklund
- Council for Nutritional and Environmental Medicine, Toften 24, 8610, Mo i Rana, Norway.
| | - Nadine Moubayed
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Ramesa Shafi Bhat
- Department of Biochemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Abir Ben Bacha
- Department of Biochemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
- Laboratory of Plant Biotechnology Applied to Crop Improvement, Faculty of Science of Sfax, University of Sfax, Sfax, Tunisia
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Ben Bacha A, Jemel I, Bhat RS, Onizi MA. Inhibitory effects of various solvent extracts from Rhamnus frangula leaves on some inflammatory and metabolic enzymes. Cell Mol Biol (Noisy-le-grand) 2018. [DOI: 10.14715/cmb/2018.64.13.11] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Ben Bacha A, Jemel I, Bhat RS, Onizi MA. Inhibitory effects of various solvent extracts from Rhamnus frangula leaves on some inflammatory and metabolic enzymes. Cell Mol Biol (Noisy-le-grand) 2018; 64:55-62. [PMID: 30403596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2018] [Revised: 10/16/2018] [Accepted: 10/20/2018] [Indexed: 06/08/2023]
Abstract
Many enzymes are involved in numerous pathologies which are related to metabolic reactions and inflammatory diseases such as pancreatic lipase, α-amylase, α-glucosidase and xanthine oxidase and secreted phospholipases A2 (Group IIA, V and X), respectively. Therefore, inhibiting these enzymes offer the potential to block production of more inflammatory substances and decrease the risk factors for cardiovascular diseases. The purpose of this study was to investigate some potent, bioavailable and selective inhibitors of some catalytic proteins implicated to metabolic syndrome and their antioxidant effects from various solvent extracts of R. frangula leaves. The anti-inflammatory, obesity, diabete and XO potentials were evaluated through analyses of inhibition activities of corresponding metabolites.The water extract exhibited an important inhibitory effect on human, dromedary and stingray sPLA2-G IIA achieved an IC50 of 0.16±0.06, 0.19±0.05 and 0.07±0.01 mg/mL, respectively. Likewise, the same fraction demonstrated the highest pancreatic lipase inhibitory activity using two different substrates. Indeed, 50% of dromedary pancreatic lipase inhibition was demonstrated for 5 min and 15 min using olive oil and TC4 substrates, respectively. Besides, it was established that methanolic extract had more effective inhibitory lipase activity than ORLISTAT used as a specific inhibitor of gastric, pancreatic and carboxyl ester lipase for treating obesity, with an IC50 of 5.51±0.27 and 91.46±2.3 µg/mL, respectively. In the case of α-amylase, α-glucosidase and xanthine oxidase, the crude methanolic extract showed a potential inhibitory effect with an IC50 of 45±3.45, 3±0.15 and 27±1.71 µg/mL, respectively. Conclusively, R. frangula leaves extracts showed a potential value of some sPLA2, some metabolic enzymes and XO inhibitors as anti-inflammatory and metabolic syndrome drugs.
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Affiliation(s)
- Abir Ben Bacha
- Biochemistry Department, Science College, King Saud University, P.O Box 22452, Riyadh 11495, Saudi Arabia
| | - Ikram Jemel
- Laboratory of Plant Biotechnology Applied to Crop Improvement, Faculty of Science of Sfax, University of Sfax, Sfax 3038, Tunisia
| | - Ramesa Shafi Bhat
- Biochemistry Department, Science College, King Saud University, P.O Box 22452, Riyadh 11495, Saudi Arabia
| | - Mona Awad Onizi
- Biochemistry Department, Science College, King Saud University, P.O Box 22452, Riyadh 11495, Saudi Arabia
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El-Ansary A, Bacha AB, Bjørklund G, Al-Orf N, Bhat RS, Moubayed N, Abed K. Probiotic treatment reduces the autistic-like excitation/inhibition imbalance in juvenile hamsters induced by orally administered propionic acid and clindamycin. Metab Brain Dis 2018; 33:1155-1164. [PMID: 29582256 DOI: 10.1007/s11011-018-0212-8] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2017] [Accepted: 02/27/2018] [Indexed: 12/15/2022]
Abstract
Increasing evidence suggests that the gut microbiota plays a key role in the central nervous system (CNS), and alterations of the gut microbiota composition due to environmental factors can contribute to neurodevelopmental disorders. Animal modeling may help to identify drugs that can normalize the altered gut microbiota and thereby ameliorate abnormal brain signaling pathways. The purpose of the present study was to investigate the therapeutic potency of probiotics such as Bifidobacteria and Lactobacilli on glutamate excitotoxicity as a neurotoxic effect induced by clindamycin and propionic acid (PPA) in juvenile hamsters. Fifty young golden Syrian hamsters weighing between 60 and 70 g were enrolled in the study. The hamsters were randomly divided into five groups, each with ten hamsters. The hamsters in the control group only received phosphate-buffered saline orally. The PPA-treated group received a neurotoxic dose of 250 mg PPA/kg body weight (BW)/day for three days. The clindamycin-treated group received 30 mg clindamycin/kg BW as a single orogastric dose on the day the experiment started. The two therapeutic groups received the same doses of PPA and clindamycin followed by 0.2 g probiotic/kg BW for three weeks. Biochemical parameters related to glutamate excitotoxicity were investigated in brain homogenates from each group of hamsters. Additionally, the development of pathogenic bacteria was monitored in stool samples from all groups. The microbiology results of the present study revealed descriptive changes in the fecal microbiota and the appearance of Clostridium species in the hamsters treated with clindamycin and PPA. Additionally, the effectiveness of the probiotic in the restoration of the normal gut microbiota was demonstrated. Moreover, clindamycin and PPA were found to induce a significant depletion of Mg2+ and γ-aminobutyric acid (GABA) and a remarkable increase in the Na+/Mg2+ and glutamate/GABA ratios but non-significant changes in the absolute levels of K+, Na+ and glutamate. The bacteria overgrowth induced by PPA and clindamycin in the present study effectively showed signs of neuronal toxicity. The study indicates that probiotics can be used safely to ameliorate glutamate excitotoxicity mostly through increasing depleted GABA and Mg2+ and decreasing the excitatory neurotransmitter, glutamate.
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Affiliation(s)
- Afaf El-Ansary
- Central Laboratory, Female Centre for Scientific and Medical Studies, King Saud University, Riyadh, Saudi Arabia
- Therapeutic Chemistry Department, National Research Centre, Dokki, Cairo, Egypt
| | - Abir Ben Bacha
- Biochemistry Department, College of Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Geir Bjørklund
- Council for Nutritional and Environmental Medicine, Toften 24, 8610, Mo i Rana, Norway.
| | - Nora Al-Orf
- Biochemistry Department, College of Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Ramesa Shafi Bhat
- Biochemistry Department, College of Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Nadine Moubayed
- Biology Department, College of Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Kawther Abed
- Biology Department, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
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Al-Osaimi M, El-Ansary A, Al-Daihan S, Bhat RS, Ben Bacha A. Therapeutic and Protective Potency of Bee Pollen Against Neurotoxic Effects Induced by Prenatal Exposure of Rats to Methyl Mercury. J Mol Neurosci 2018; 65:327-335. [DOI: 10.1007/s12031-018-1107-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Accepted: 06/18/2018] [Indexed: 11/25/2022]
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Ben Bacha A, Alonazi MA, Elshikh MS, Karray A. A novel bactericidal homodimeric PLA 2 group-I from Walterinnesia aegyptia venom. Int J Biol Macromol 2018; 117:1140-1146. [PMID: 29885399 DOI: 10.1016/j.ijbiomac.2018.06.024] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Revised: 06/04/2018] [Accepted: 06/06/2018] [Indexed: 11/29/2022]
Abstract
A novel non-toxic phospholipase A2 was purified to homogeneity in a single chromatography step from the venom of Walterinnesia aegyptia, a monotypic elapid snake caught in Saudi Arabia, and its antimicrobial and hemolytic properties were evaluated as well. This enzyme, namely WaPLA2, is a homodimer with an estimated molecular mass of 30 kDa, and its NH2-terminal sequence exhibits a significant degree of similarity with PLA2 group-I. At optimal pH (8.5) and temperature (45 °C), the purified PLA2 exhibited a specific activity of 2100 U/mg, and it requires bile salts and Ca2+ for its activity. However, other cations such as Cd2+ and Hg2+ diminished the enzyme activity remarkably, thereby suggesting that the catalytic site arrangement has an exclusive structure for Ca2+ binding. Furthermore, WaPLA2 maintained almost 100% and 60% of its full activity in a pH range of 6.0-10 after 24 h incubation or after 60 min treatment at 70 °C, respectively. In the biological activity assays, WaPLA2 displayed potent indirectly hemolytic and antimicrobial activities that were strongly correlated. These promising findings encourage further in-depth research to understand the molecular mechanism of WaPLA2's antimicrobial properties for its possible use as a potential therapeutic lead molecule for treating infections.
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Affiliation(s)
- Abir Ben Bacha
- Biochemistry Department, Science College, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia; Laboratory of Plant Biotechnology Applied to Crop Improvement, Faculty of Science of Sfax, University of Sfax, Sfax 3038, Tunisia.
| | - Mona Awad Alonazi
- Biochemistry Department, Science College, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia
| | - Mohamed Solman Elshikh
- Botany and Microbiology Department, Science College, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia
| | - Aida Karray
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases, ENIS, Université de Sfax, Route de Soukra 3038, BP 1173, Sfax, Tunisia
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Al-Daihan S, Ben Bacha A, Al-Dbass AM, Alonazi MA, Bhat RS. High-fat diet stimulates the gut pathogenic microbiota and maintains hepatic injury in antibiotic-treated rats. Cell Mol Biol (Noisy-le-grand) 2018; 64:103-106. [DOI: 10.14715/cmb/2018.64.1.18] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2017] [Revised: 11/16/2017] [Accepted: 01/18/2018] [Indexed: 11/18/2022]
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Khemakhem AM, Frye RE, El-Ansary A, Al-Ayadhi L, Bacha AB. Novel biomarkers of metabolic dysfunction is autism spectrum disorder: potential for biological diagnostic markers. Metab Brain Dis 2017; 32:1983-1997. [PMID: 28831647 DOI: 10.1007/s11011-017-0085-2] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Accepted: 08/01/2017] [Indexed: 12/21/2022]
Abstract
Autism spectrum disorder (ASD) is a neurodevelopmental disorder that is behaviorally defined by social and communication impairments and restricted interests and repetitive behaviors. There is currently no biomarkers that can help in the diagnosis. Several studies suggest that mitochondrial dysfunction is commonly involved in ASD pathophysiology, but standard mitochondrial biomarkers are thought to be very variable. In the present study we examine a wide variety of plasma biomarkers of mitochondrial metabolism and the related abnormalities of oxidative stress and apoptosis in 41 ASD patients assessed for ASD severity using the Childhood Autism Rating Scales and 41 non-related age and sex matched healthy controls. Our findings confirm previous studies indicating abnormal mitochondrial and related biomarkers in children with ASD including pyruvate, creatine kinase, Complex 1, Glutathione S-Transferase, glutathione and Caspase 7. As a novel finding, we report that lactate dehydrogenase is abnormal in children with ASD. We also identified that only the most severe children demonstrated abnormalities in Complex 1 activity and Glutathione S-Transferase. Additionally, we find that several biomarkers could be candidates for differentiating children with ASD and typically developing children, including Caspase 7, gluthatione and Glutathione S-Transferase by themselves and lactate dehydrogenase and Complex I when added to other biomarkers in combination. Caspase 7 was the most discriminating biomarker between ASD patients and healthy controls suggesting its potential use as diagnostic marker for the early recognition of ASD pathophysiology. This study confirms that several mitochondrial biomarkers are abnormal in children with ASD and suggest that certain mitochondrial biomarkers can differentiate between ASD and typically developing children, making them possibly useful as a tool to diagnosis ASD and identify ASD subgroups.
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Affiliation(s)
- Asma M Khemakhem
- Laboratory of Plant Biotechnology Applied to Crop Improvement, Faculty of Science of Sfax, University of Sfax, 3038, Sfax, Tunisia
| | - Richard E Frye
- Arkansas Children's Research Institute, Slot 512-41B, Room R4041, 13 Children's Way, Little Rock, AR, 72202, USA.
| | - Afaf El-Ansary
- Autism Research and Treatment Center, King Saud University, P O Box 2925, Riyadh, 11461, Saudi Arabia
- Shaik AL-Amodi Autism Research Chair, King Saud University, P O Box 2925, Riyadh, 11461, Saudi Arabia
- Central Laboratory, King Saud University, P.O Box 22452, Zip code, Riyadh, 11495, Saudi Arabia
| | - Laila Al-Ayadhi
- Autism Research and Treatment Center, King Saud University, P O Box 2925, Riyadh, 11461, Saudi Arabia
- Shaik AL-Amodi Autism Research Chair, King Saud University, P O Box 2925, Riyadh, 11461, Saudi Arabia
- Department of Physiology, Faculty of Medicine, King Saud University, P O Box 2925, Riyadh, 11461, Saudi Arabia
| | - Abir Ben Bacha
- Laboratory of Plant Biotechnology Applied to Crop Improvement, Faculty of Science of Sfax, University of Sfax, 3038, Sfax, Tunisia
- Biochemistry Department, Science College, King Saud University, P.O Box 22452, Zip code, Riyadh, 11495, Saudi Arabia
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Alasmary FAS, Alnahdi FS, Ben Bacha A, El-Araby AM, Moubayed N, Alafeefy AM, El-Araby ME. New quinoxalinone inhibitors targeting secreted phospholipase A2 and α-glucosidase. J Enzyme Inhib Med Chem 2017; 32:1143-1151. [PMID: 28856929 PMCID: PMC6009887 DOI: 10.1080/14756366.2017.1363743] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Revised: 07/27/2017] [Accepted: 08/01/2017] [Indexed: 11/05/2022] Open
Abstract
Elevated blood glucose and increased activities of secreted phospholipase A2 (sPLA2) are strongly linked to coronary heart disease. In this report, our goal was to develop small heterocyclic compound that inhibit sPLA2. The title compounds were also tested against α-glucosidase and α-amylase. This array of enzymes was selected due to their implication in blood glucose regulation and diabetic cardiovascular complications. Therefore, two distinct series of quinoxalinone derivatives were synthesised; 3-[N'-(substituted-benzylidene)-hydrazino]-1H-quinoxalin-2-ones 3a-f and 1-(substituted-phenyl)-5H-[1,2,4]triazolo[4,3-a]quinoxalin-4-ones 4a-f. Four compounds showed promising enzyme inhibitory effect, compounds 3f and 4b-d potently inhibited the catalytic activities of all of the studied proinflammatory sPLA2. Compound 3e inhibited α-glucosidase (IC50 = 9.99 ± 0.18 µM); which is comparable to quercetin (IC50 = 9.93 ± 0.66 µM), a known inhibitor of this enzyme. Unfortunately, all compounds showed weak activity against α-amylase (IC50 > 200 µM). Structure-based molecular modelling tools were utilised to rationalise the SAR compared to co-crystal structures with sPLA2-GX as well as α-glucosidase. This report introduces novel compounds with dual activities on biochemically unrelated enzymes mutually involved in diabetes and its complications.
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Affiliation(s)
- Fatmah A. S. Alasmary
- Chemistry Department, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Fatima S. Alnahdi
- Chemistry Department, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Abir Ben Bacha
- Biochemistry Department, College of Science, King Saud University, Riyadh, Saudi Arabia
| | | | - Nadine Moubayed
- Botany and Microbiology Department, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Ahmed M. Alafeefy
- Department of Chemistry, Kulliyyah of Pharmacy, International Islamic University Malaysia, Kuantan, Malaysia
| | - Moustafa E. El-Araby
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, King Abdulaziz University, Jeddah, Saudi Arabia
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Helwan University, Cairo, Egypt
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Bacha AB, Jemel I, Moubayed NMS, Abdelmalek IB. Purification and characterization of a newly serine protease inhibitor from Rhamnus frangula with potential for use as therapeutic drug. 3 Biotech 2017; 7:148. [PMID: 28597160 PMCID: PMC5465048 DOI: 10.1007/s13205-017-0764-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2016] [Accepted: 02/02/2017] [Indexed: 11/29/2022] Open
Abstract
Protease inhibitors from plants are well known to be potent inhibitors of the growth of bacteria, fungi, and even certain viruses which make them excellent candidates for use as the lead compounds for the development of novel antimicrobial agents for applications in medicine. In this study, Rhamnus frangula was selected as a protease inhibitor source. The maximum recovery of the protease inhibitor against trypsin was recorded in the crude extract made in 0.1 M phosphate buffer (pH 7.0) and isolated from the mature leaves. Then, the protease inhibitor designated as RfIP1 was purified to homogeneity by Sephadex G50 with an apparent molecular mass of 22.5 kDa and its N-terminal sequence exhibited a high degree of homology with known serine protease inhibitor sequences. The RfIP1 displayed maximal activity at pH 7 and 37 °C. It maintained almost 80% of its maximal activity through a large pH range. The thermo-stability of RfIP1 was markedly enhanced by BSA, CaCl2, and sorbitol, whereas the addition of Mg2+, Zn2+, NaTDC, SDS, DTT, and β-ME significantly promoted inhibitory activity. The protease inhibitor displayed high inhibitory activity toward some known proteases (cathepsin B, chymotrypsin, collagenase, thrombin, and trypsin) that have more importance in pharmaceutical industry and it acted as potent inhibitor of some commercially proteases from Aspergillus oryzae, Bacillus sp, and Bacillus licheniformis. The protease inhibitor also possessed an appreciable antibacterial effect against both Gram-positive and Gram-negative bacteria.
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Affiliation(s)
- Abir Ben Bacha
- Biochemistry Department, Science College, King Saud University, P.O. Box 22452, Riyadh, 11495, Saudi Arabia.
- Laboratory of Plant Biotechnology Applied to Crop Improvement, Faculty of Science of Sfax, University of Sfax, 3038, Sfax, Tunisia.
| | - Ikram Jemel
- Laboratory of Plant Biotechnology Applied to Crop Improvement, Faculty of Science of Sfax, University of Sfax, 3038, Sfax, Tunisia
| | - Nadine M S Moubayed
- Botany and Microbiology Department, Science College, King Saud University, P.O. Box 22452, Riyadh, 11495, Saudi Arabia
| | - Imen Ben Abdelmalek
- Biology Department, College of Science and Arts at Buraidah Qassim University, Qassim, Saudi Arabia
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Ben Bacha A, Al-Assaf A, Moubayed NMS, Abid I. Evaluation of a novel thermo-alkaline Staphylococcus aureus lipase for application in detergent formulations. Saudi J Biol Sci 2016; 25:409-417. [PMID: 29686504 PMCID: PMC5910647 DOI: 10.1016/j.sjbs.2016.10.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2016] [Revised: 08/24/2016] [Accepted: 10/03/2016] [Indexed: 11/26/2022] Open
Abstract
An extracellular lipase of a newly isolated S. aureus strain ALA1 (SAL4) was purified from the optimized culture medium. The SAL4 specific activity determined at 60 °C and pH 12 by using olive oil emulsion or TC4, reached 7215 U/mg and 2484 U/mg, respectively. The 38 NH2-terminal amino acid sequence of the purified enzyme starting with two extra amino acid residues (LK) was similar to known staphylococcal lipase sequences. This novel lipase maintained almost 100% and 75% of its full activity in a pH range of 4.0-12 after a 24 h incubation or after 0.5 h treatment at 70 °C, respectively. Interestingly, SAL4 displayed appreciable stability toward oxidizing agents, anionic and non-ionic surfactants in addition to its compatibility with several commercial detergents. Overall, these interesting characteristics make this new lipase promising for its application in detergent industry.
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Key Words
- Characterization
- Detergent-stable
- HPLC, high-performance liquid chromatography
- NaDC, sodium deoxycholic acid
- NaTDC, sodium taurodeoxy cholic acid
- OD, optical density
- PCR, polymerase chain reaction
- Purification
- S. aureus, Staphylococcus aureus
- SAL, Staphylococcus aureus lipase
- SDS, sodium dodecyl sulfate
- SEL, Staphylococcus epidermidis lipase
- SHyL, Staphylococcus hyicus lipase
- SL1, Staphylococcus sp. lipase
- SSL, Staphylococcus simulans lipase
- SXL, Staphylococcus xylosus lipase
- Staphylococcus aureus lipase
- TC18, triolein
- TC3, tripropionin
- TC4, tributryin
- TC8, trioctanoin
- TFA, tri fluoroacetic acid
- Thermo-alkaline
- rDNA, ribosomal deoxy ribo nucleic acid
- rpm, revolutions per minute
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Affiliation(s)
- Abir Ben Bacha
- Biochemistry Department, Science College, King Saud University, P.O Box 22452, Riyadh 11495, Saudi Arabia.,Laboratory of Plant Biotechnology Applied to Crop Improvement, Faculty of Science of Sfax, University of Sfax, Sfax 3038, Tunisia
| | - Alaa Al-Assaf
- Biochemistry Department, Science College, King Saud University, P.O Box 22452, Riyadh 11495, Saudi Arabia
| | - Nadine M S Moubayed
- Botany and Microbiology Department, Science College, King Saud University, P.O Box 22452, Riyadh 11495, Saudi Arabia
| | - Islem Abid
- Botany and Microbiology Department, Science College, King Saud University, P.O Box 22452, Riyadh 11495, Saudi Arabia
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Ben Bacha A, Moubayed NM, Al-Assaf A. An organic solvent-stable lipase from a newly isolated Staphylococcus aureus ALA1 strain with potential for use as an industrial biocatalyst. Biotechnol Appl Biochem 2015; 63:378-90. [PMID: 25828848 DOI: 10.1002/bab.1381] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2015] [Accepted: 03/23/2015] [Indexed: 11/08/2022]
Abstract
In this study, a new strain, ALA1, was identified as Staphylococcus aureus by biochemical tests, and its 16S ribosomal DNA sequence was isolated from dromedary milk. ALA1 lipase production was optimized in shake flask experiments and measured with varying pH (3-11), temperature (20-55 °C) and substrate concentrations. The maximum lipase production was recorded at pH 8 and 30 °C for up to 30 H of culture period for the S. aureus ALA1 strain. Among the substrates tested, selected carbon sources, xylose, nitrogen source, yeast extract, and olive oil (1%) were suitable for maximizing lipase production. The effects of surfactants were investigated and showed that Tween 20, Tween 80, and Triton X-100 prevented lipase production. Interestingly, isolate ALA1 was able to grow in high concentrations of benzene or toluene (up to 50% (v/v)). Moreover, the lipolytic activity of the S. aureus ALA1 lipase was stimulated by diethyl ether, whereas almost 100% of S. aureus ALA1 lipase activity was retained in 25% acetone, acetonitrile, benzene, 2-propanol, ethanol, methanol, or toluene. Because of its stability in organic solvent, the S. aureus ALA1 lipase was used as a biocatalyst to synthesize high levels of added value molecules. S. aureus ALA1 lipase could be considered as an ideal choice for applications in detergent formulations because of its high stability and compatibility with various surfactants, oxidizing agents, and commercial detergents.
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Affiliation(s)
- Abir Ben Bacha
- Biochemistry Department, Science College, King Saud University, Riyadh, Saudi Arabia.,Laboratory of Plant Biotechnology Applied to Crop Improvement, Faculty of Science of Sfax, University of Sfax, Sfax, Tunisia
| | - Nadine Ms Moubayed
- Botany and Microbiology Department, Science College, King Saud University, Riyadh, Saudi Arabia
| | - Alaa Al-Assaf
- Biochemistry Department, Science College, King Saud University, Riyadh, Saudi Arabia
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Ben Bacha A, Moubayed NMS, Abid I. Thermostable, alkaline and detergent-tolerant lipase from a newly isolated thermophilic Bacillus stearothermophilus. Indian J Biochem Biophys 2015; 52:179-188. [PMID: 26118130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Lipases are the enzymes of choice for laundry detergent industries, owing to their triglyceride removing ability from the soiled fabric, which eventually reduces the usage of phosphate-based chemical cleansers in the detergent formulation. In this study, a novel thermo-alkaline lipase-producing strain identified as Bacillus stearothermophilus was isolated from the soil samples of olive oil mill. Enhanced lipase production was observed at 55 degrees C, pH 11 and after 48 h of incubation. Among the substrates tested, xylose (a carbon source), peptone (a nitrogen source) and olive oil at a concentration of 1% were suitable substrates for enhancing lipase production. MgSO4 and Tween-80 were suitable substrates for maximizing lipase production. The enzyme was purified to homogeneity by a single CM-Sephadex column chromatography and revealed molecular mass of 67 kDa. The enzyme (BL1) was active over a wide range of pH from 9.0 to 13.0, with an optimum at pH 11.0, exhibited maximal activity at 55 degreesC and retained more than 70% of its activity after incubation at 70 degrees C or pH 13 for 0.5 h or 24 h, respectively. The enzyme hydrolyzed both short and long-chain triacylglycerols at comparable rates. BL1 was studied in a preliminary evaluation for use in detergent formulation solutions. This novel lipase showed extreme stability towards non-ionic and anionic surfactants after pre-incubation for 1 h at 40 degrees C, and good stability towards oxidizing agents. Additionally, the enzyme showed excellent stability and compatibility with various commercial detergents, suggesting its potential as an additive in detergent formulations.
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Bacha AB. Anti-bactericidal properties of stingray Dasyatis pastinaca groups V, IIA, and IB phospholipases A2: a comparative study. Appl Biochem Biotechnol 2014; 174:1520-1534. [PMID: 25119545 DOI: 10.1007/s12010-014-1069-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2013] [Accepted: 07/21/2014] [Indexed: 11/25/2022]
Abstract
Group IIA secreted phospholipase A2 (group IIA sPLA2) is known to display potent Gram-positive bactericidal activity in vitro and in vivo. We have analyzed the bactericidal activity of the full set of native stingray and dromedary groups V, IIA, and IB sPLA2s on several Gram-positive and Gram-negative strains. The rank order potency among both marine and mammal sPLA2s against Gram-positive bacteria is group IIA > V > IB, whereas Gram-negative bacteria exhibited a much higher resistance. There is a synergic action of the sPLA2 with lysozyme when added to the bacteria culture prior to sPLA2.The bactericidal efficiency of groups V and IIA sPLA2s was shown to be dependent upon the presence of calcium ions and to a less extent Mg(2+) ions and then a correlation could be made to its hydrolytic activity of membrane phospholipids. Importantly, we showed that stingray and dromedary groups V, IIA, and IB sPLA2s present no cytotoxicity after their incubation with MDA-MB-231cells. stingray groups V and IIA sPLA2s, like mammal ones, may be considered as future therapeutic agents against bacterial infections.
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Affiliation(s)
- Abir Ben Bacha
- Biochemistry Department, Science College, King Saud University, P.O Box 22452, Riyadh, 11495, Saudi Arabia. .,Laboratory of Plant Biotechnology Applied to Crop Improvement, Faculty of Science of Sfax, University of Sfax, Sfax, 3038, Tunisia.
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Ben Bacha A, Abid I, Horchani H, Mejdoub H. Enzymatic properties of stingray Dasyatis pastinaca group V, IIA and IB phospholipases A(2): a comparative study. Int J Biol Macromol 2013; 62:537-42. [PMID: 24120965 DOI: 10.1016/j.ijbiomac.2013.10.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2013] [Revised: 10/01/2013] [Accepted: 10/04/2013] [Indexed: 11/18/2022]
Abstract
In the present study, we have purified the group V phospholipase from the heart of cartilaginous fish stingray Dasyatis pastinaca and compared its biochemical properties with group IIA (sPLA2-IIA) and IB (sPLA2-IB) phospholipases previously purified from pancreas and intestine, respectively. Group V phospholipase (sPLA2-V) was purified to homogeneity by heat treatment, ammonium sulphate precipitation and RP-HPLC. The N-terminal sequence of the purified sPLA2-V exhibits a high degree of homology with those of mammal. The enzyme was found to be monomeric with a molecular mass estimation of 14 kDa. The specific activity of the purified enzyme, measured at pH 8 and 37 °C was 52 U/mg. Like sPLA2-IB and sPLA2-IIA, the sPLA2-V is found to be stable between pH 3 and 11 after 30 min of incubation. The purified sPLA2-V retained 65% of its activity after 10 min of incubation at 70 °C and it absolutely requires Ca(2+) for enzymatic activity. In addition it displayed high tolerance to organic solvents. Kinetic parameters Kmapp, kcat and the deduced catalytic efficiency (kcat/Kmapp) of the purified group-V, -IB and -IIA PLA2s were determined using phosphatidylethanolamine (PE), phosphatidylcholine (PC) or phosphatidylserine (PS) as substrate. The three enzymes hydrolyze the zwiterionic PE and PC substrates more efficiently than anionic PS substrate.
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Affiliation(s)
- Abir Ben Bacha
- Biochemistry Department, Science College, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia; Laboratory of Plant Biotechnology Applied to Crop Improvement, Faculty of Science of Sfax, University of Sfax, Sfax 3038, Tunisia.
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Ben Bacha A, Daihan SK, Moubayed NMS, Mejdoub H. Purification and characterization of a phospholipase A2-IIA from common stingray (Dasyatis pastinaca) intestine. Indian J Biochem Biophys 2013; 50:186-195. [PMID: 23898481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
A phospholipase A2 belonging to IIA group secretory PLA2 was isolated and purified to homogeneity from the intestine of common stingray (Dasyatis pastinaca) using acidic treatment (pH 1.5) and ammonium sulphate precipitation methods combined with single-column ion-exchange chromatography. The purified enzyme was found to be a glycosylated monomeric protein with a molecular mass of about 14 kDa. The stingray sPLA2-IIA had optimum activity at 45 degrees C, unlike known mammalian PLA2-IIAs, which show optimum activity at 37 degrees C. The purified enzyme exhibited a specific activity of 290 U/mg at optimal conditions (pH 9.5 and 45 degrees C) in the presence of 6 mM NaDC and 8 mM CaCl2 with egg yolk as substrate. The NH2-terminal sequence of the enzyme and some protein fragments obtained from its tryptic digestion were also determined. All sequences obtained were similar to those of sPLA2-IIA. The enzyme also showed good stability in the presence of organic solvents, acidic and alkaline pH media and high temperature conditions. Thus, the purified enzyme exhibited a number of unique and promising properties, making it a potential possible candidate for future applications in the treatment of phospholipid-rich industrial effluents and synthesis of useful preparations for the food production and processing industry.
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Affiliation(s)
- Abir Ben Bacha
- Biochemistry Department, Science College, King Saud University, PO Box 22452, Riyadh 11495, Saudi Arabia.
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Ben Bacha A, Al-Daihan SK, Mejdoub H. Purification, characterization and bactericidal activities of phospholipase A2 from the dromedary intestine. Int J Biol Macromol 2013; 57:156-64. [DOI: 10.1016/j.ijbiomac.2013.03.020] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2012] [Revised: 03/04/2013] [Accepted: 03/06/2013] [Indexed: 11/28/2022]
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Ben Bacha A, Abid I. Secretory phospholipase A2 in dromedary tears: a host defense against staphylococci and other gram-positive bacteria. Appl Biochem Biotechnol 2013; 169:1858-69. [PMID: 23344945 DOI: 10.1007/s12010-013-0113-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2012] [Accepted: 01/14/2013] [Indexed: 11/29/2022]
Abstract
The best known physiologic function of secreted phospholipase A2 (sPLA2) group IIA (sPLA2-IIA) is defense against bacterial infection through hydrolytic degradation of bacterial membrane phospholipids. In fact, sPLA2-IIA effectively kills Gram-positive bacteria and to a lesser extent Gram-negative bacteria and is considered a major component of the eye's innate immune defense system. The antibacterial properties of sPLA2 have been demonstrated in rabbit and human tears. In this report, we have analyzed the bactericidal activity of dromedary tears and the subsequently purified sPLA2 on several Gram-positive bacteria. Our results showed that the sPLA2 displays a potent bactericidal activity against all the tested bacteria particularly against the Staphylococcus strains when tested in the ionic environment of tears. There is a synergic action of the sPLA2 with lysozyme when added to the bacteria culture prior to sPLA2. Interestingly, lysozyme purified from dromedary tears showed a significant bactericidal activity against Listeria monocytogene and Staphylococcus epidermidis, whereas the one purified from human tears displayed no activity against these two strains. We have also demonstrated that Ca(2+) is crucial for the activity of dromedary tear sPLA2 and to a less extent Mg(2+) ions. Given the presence of sPLA2 in tears and intestinal secretions, this enzyme may play a substantial role in innate mucosal and systemic bactericidal defenses against Gram-positive bacteria.
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Affiliation(s)
- Abir Ben Bacha
- Biochemistry Department, Science College, King Saud University, Riyadh, Saudi Arabia.
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Abstract
Nanotechnology involves the creation and manipulation of materials at nanoscale levels (1-100 nm) to create products that exhibit novel properties. While this motivation has driven nanoscience and technology in physics and engineering, it is not the main reason that nanoparticles are useful for systemic applications in the human body. The application of nanotechnology to medicine, known as nanomedicine, concerns the use of precisely engineered materials at this length scale to develop novel therapeutic and diagnostic modalities. A number of nanotherapeutic formulations are already approved for medical use and more are in the approval pipeline currently. This chapter is intended to provide an overview of the toxicity of these therapeutic nanoparticles and to summarize the current state of the field. We begin with background on the sources of exposure to nanoparticles, followed by reviewing different forms of nanosized therapeutic tools as quantum dots, nanoshells, nanocapsules, echogenic bubble, and "nanoshuttles." Moreover, cytotoxic effects of nanoparticles on cell membrane, mitochondrial function, prooxidant/antioxidant status, enzyme leakage, DNA, and other biochemical endpoints were elucidated. We highlight the need for caution during the use and disposal of such manufactured nanomaterials to prevent unintended environmental impacts. Moreover, different strategies which could be used to minimize or eliminate nanotoxicity were also discussed in detail. Understanding of how to tune size and surface properties to provide safety will permit the creation of new, more effective nanomedicines for systemic use.
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Affiliation(s)
- Afaf El-Ansary
- Biochemistry Department, Science College, King Saud University, Riyadh, Saudi Arabia
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Ben Bacha A, Abid I, Horchani H. Antibacterial properties of intestinal phospholipase A2 from the common stingray Dasyatis pastinaca. Appl Biochem Biotechnol 2012; 168:1277-87. [PMID: 22956299 DOI: 10.1007/s12010-012-9856-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2012] [Accepted: 08/21/2012] [Indexed: 11/29/2022]
Abstract
Stingray phospholipase A(2) group IIA (SPLA(2)-IIA) was recently isolated and purified to homogeneity from the intestine of the common stingray Dasyatis pastinaca, suggesting that this enzyme plays an important role in systemic bactericidal defense. The present study showed that SPLA(2)-IIA was highly bactericidal against Gram-positive bacteria with inhibition zones and minimal inhibitory concentration values in the range of 13-25 mm and 2-8 μg/ml, respectively, whereas Gram-negative bacteria exhibited a much higher resistance. The bactericidal efficiency of SPLA(2)-IIA was shown to be unaffected by high protein and salt concentrations, but dependent upon the presence of calcium ions, and then correlated to the hydrolytic activity of membrane phospholipids. Importantly, we showed that stingray phospholipase A(2) group IIA presents no cytotoxicity after its incubation with MDA-MB-231 cells. SPLA(2)-IIA may be considered as a future therapeutic agent against bacterial infections.
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Affiliation(s)
- Abir Ben Bacha
- Biochemistry Department, Science College, King Saud University, Riyadh, Saudi Arabia.
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El-Ansary AK, Bacha AB, Kotb M. Etiology of autistic features: the persisting neurotoxic effects of propionic acid. J Neuroinflammation 2012; 9:74. [PMID: 22531301 PMCID: PMC3425128 DOI: 10.1186/1742-2094-9-74] [Citation(s) in RCA: 121] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2011] [Accepted: 02/13/2012] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Recent clinical observations suggest that certain gut and dietary factors may transiently worsen symptoms in autism. Propionic acid (PA) is a short chain fatty acid and an important intermediate of cellular metabolism. Although PA has several beneficial biological effects, its accumulation is neurotoxic. METHODS Two groups of young Western albino male rats weighing about 45 to 60 grams (approximately 21 days old) were used in the present study. The first group consisted of oral buffered PA-treated rats that were given a neurotoxic dose of 250 mg/kg body weight/day for three days, n = eight; the second group of rats were given only phosphate buffered saline and used as a control. Biochemical parameters representing oxidative stress, energy metabolism, neuroinflammation, neurotransmission, and apoptosis were investigated in brain homogenates of both groups. RESULTS Biochemical analyses of brain homogenates from PA-treated rats showed an increase in oxidative stress markers (for example, lipid peroxidation), coupled with a decrease in glutathione (GSH) and glutathione peroxidase (GPX) and catalase activities. Impaired energy metabolism was ascertained through the decrease of lactate dehydrogenase and activation of creatine kinase (CK). Elevated IL-6, TNFα, IFNγ and heat shock protein 70 (HSP70) confirmed the neuroinflammatory effect of PA. Moreover, elevation of caspase3 and DNA fragmentation proved the pro-apoptotic and neurotoxic effect of PA to rat pups CONCLUSION By comparing the results obtained with those from animal models of autism or with clinical data on the biochemical profile of autistic patients, this study showed that the neurotoxicity of PA as an environmental factor could play a central role in the etiology of autistic biochemical features.
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Affiliation(s)
- Afaf K El-Ansary
- Biochemistry Department, Science College, King Saud University, Riyadh, Saudi Arabia
| | - Abir Ben Bacha
- Biochemistry Department, Science College, King Saud University, Riyadh, Saudi Arabia
| | - Malak Kotb
- Department of Molecular Genetics, Biochemistry and Microbiology, College of Medicine, University of Cincinnati, Cincinnati, Ohio, USA
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Hammami I, Jaouadi B, Bacha AB, Rebai A, Bejar S, Nesme X, Rhouma A. Bacillus subtilis bacteriocin Bac 14B with a broad inhibitory spectrum: Purification, amino acid sequence analysis, and physicochemical characterization. BIOTECHNOL BIOPROC E 2012. [DOI: 10.1007/s12257-010-0401-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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El-Ansary AK, Bacha AB, Ayahdi LYA. Relationship between chronic lead toxicity and plasma neurotransmitters in autistic patients from Saudi Arabia. Clin Biochem 2011; 44:1116-1120. [DOI: 10.1016/j.clinbiochem.2011.06.982] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2011] [Revised: 06/18/2011] [Accepted: 06/20/2011] [Indexed: 11/25/2022]
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Ben Bacha A, Karray A, Daoud L, Bouchaala E, Bou Ali M, Gargouri Y, Ben Ali Y. Biochemical properties of pancreatic colipase from the common stingray Dasyatis pastinaca. Lipids Health Dis 2011; 10:69. [PMID: 21549005 PMCID: PMC3098174 DOI: 10.1186/1476-511x-10-69] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2011] [Accepted: 05/08/2011] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Pancreatic colipase is a required co-factor for pancreatic lipase, being necessary for its activity during hydrolysis of dietary triglycerides in the presence of bile salts. In the intestine, colipase is cleaved from a precursor molecule, procolipase, through the action of trypsin. This cleavage yields a peptide called enterostatin knoswn, being produced in equimolar proportions to colipase. RESULTS In this study, colipase from the common stingray Dasyatis pastinaca (CoSPL) was purified to homogeneity. The purified colipase is not glycosylated and has an apparent molecular mass of around 10 kDa. The NH2-terminal sequencing of purified CoSPL exhibits more than 55% identity with those of mammalian, bird or marine colipases. CoSPL was found to be less effective activator of bird and mammal pancreatic lipases than for the lipase from the same specie. The apparent dissociation constant (Kd) of the colipase/lipase complex and the apparent Vmax of the colipase-activated lipase values were deduced from the linear curves of the Scatchard plots. We concluded that Stingray Pancreatic Lipase (SPL) has higher ability to interact with colipase from the same species than with the mammal or bird ones. CONCLUSION The fact that colipase is a universal lipase cofactor might thus be explained by a conservation of the colipase-lipase interaction site. The results obtained in the study may improve our knowledge of marine lipase/colipase.
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Affiliation(s)
- Abir Ben Bacha
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases, ENIS route de Soukra, BP1173, University of Sfax - 3038 Sfax, Tunisia
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Damak N, Hadj-Taieb N, Bonnin E, Ben Bacha A, Gargouri A. Purification and biochemical characterization of a novel thermoactive fungal pectate lyase from Penicillium occitanis. Process Biochem 2011. [DOI: 10.1016/j.procbio.2010.12.014] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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