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Hossain MM, Rajia S, Ohkawa M, Yoshimoto S, Fujii Y, Kawsar SMA, Ozeki Y, Hasan I. Physicochemical properties and antimicrobial activities of MytiLec-1, a member from the mytilectin family of mussels. Int J Biol Macromol 2023; 253:127628. [PMID: 37884254 DOI: 10.1016/j.ijbiomac.2023.127628] [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: 09/03/2023] [Revised: 10/20/2023] [Accepted: 10/21/2023] [Indexed: 10/28/2023]
Abstract
MytiLec-1, the recombinant form of a mussel lectin from Mytillus galloprovincialis, was purified by affinity chromatography and showed the maximum hemagglutination activity at a temperature range of 10 °C to 40 °C and at pH 7.0 to 9.0. Denaturants like urea and acidic-guanidine inhibited its hemagglutination activity significantly. MytiLec-1 was found to be metal-independent though Ca2+ slightly increased the activity of chelated MytiLec-1. The lectin suppressed 65 % growth of Pseudomonas aeruginosa (ATCC 47085) at 200 μg/ml and reduced the formation of biofilm (15 % at 200 μg/ml). Comparing to Shigella sonnei (ATCC 29930), Shigella boydii (ATCC 231903) and Shigella dysenteriae (ATCC 238135), Bacillus cereus (ATCC 14579) was slightly more sensitive to MytiLec-1. At a concentration of 200 μg/disc and 100 μg/ml, MytiLec-1 prevented the growth of Aspergillus niger and agglutinated the spores of Aspergillus niger and Trichoderma reesei, respectively. Amino acid sequences, physicochemical properties and antimicrobial activities of MytiLec-1 were compared with three other lectins (CGL, MTL and MCL from Crenomytilus grayanus, Mytilus trossulas and Mytilus californianus, respectively) from the mytilectin family of bivalve mollusks. It reconfirms the function of these lectins to recognize pathogens and perform important roles in innate immune response of mussels.
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Affiliation(s)
- Md Mikail Hossain
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi 6205, Bangladesh
| | - Sultana Rajia
- Center for Interdisciplinary Research, Varendra University, Rajshahi 6204, Bangladesh; Graduate School of Nanobiosciences, Yokohama City University, 22-2 Seto, Kanazawa-ku, Yokohama 236-0027, Japan
| | - Mayuka Ohkawa
- Graduate School of Nanobiosciences, Yokohama City University, 22-2 Seto, Kanazawa-ku, Yokohama 236-0027, Japan
| | - Suzuna Yoshimoto
- Graduate School of Nanobiosciences, Yokohama City University, 22-2 Seto, Kanazawa-ku, Yokohama 236-0027, Japan
| | - Yuki Fujii
- Graduate School of Pharmaceutical Sciences, Nagasaki International University, 2825-7, Huis Ten Bosch, Sasebo, Nagasaki 859-3298, Japan
| | - Sarkar M A Kawsar
- Department of Chemistry, University of Chittagong, Chittagong 4331, Bangladesh
| | - Yasuhiro Ozeki
- Graduate School of Nanobiosciences, Yokohama City University, 22-2 Seto, Kanazawa-ku, Yokohama 236-0027, Japan
| | - Imtiaj Hasan
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi 6205, Bangladesh.
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2
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Shishir TA, Saha O, Rajia S, Mondol SM, Masum MHU, Rahaman MM, Hossen F, Bahadur NM, Ahmed F, Naser IB, Amin MR. Genome-wide study of globally distributed respiratory syncytial virus (RSV) strains implicates diversification utilizing phylodynamics and mutational analysis. Sci Rep 2023; 13:13531. [PMID: 37598270 PMCID: PMC10439963 DOI: 10.1038/s41598-023-40760-y] [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: 05/11/2023] [Accepted: 08/16/2023] [Indexed: 08/21/2023] Open
Abstract
Respiratory syncytial virus (RSV) is a common respiratory pathogen that causes mild cold-like symptoms and severe lower respiratory tract infections, causing hospitalizations in children, the elderly and immunocompromised individuals. Due to genetic variability, this virus causes life-threatening pneumonia and bronchiolitis in young infants. Thus, we examined 3600 whole genome sequences submitted to GISAID by 31 December 2022 to examine the genetic variability of RSV. While RSVA and RSVB coexist throughout RSV seasons, RSVA is more prevalent, fatal, and epidemic-prone in several countries, including the United States, the United Kingdom, Australia, and China. Additionally, the virus's attachment glycoprotein and fusion protein were highly mutated, with RSVA having higher Shannon entropy than RSVB. The genetic makeup of these viruses contributes significantly to their prevalence and epidemic potential. Several strain-specific SNPs co-occurred with specific haplotypes of RSVA and RSVB, followed by different haplotypes of the viruses. RSVA and RSVB have the highest linkage probability at loci T12844A/T3483C and G13959T/C2198T, respectively. The results indicate that specific haplotypes and SNPs may significantly affect their spread. Overall, this analysis presents a promising strategy for tracking the evolving epidemic situation and genetic variants of RSV, which could aid in developing effective control, prophylactic, and treatment strategies.
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Affiliation(s)
- Tushar Ahmed Shishir
- Department of Mathematics and Natural Sciences, BRAC University, Dhaka, Bangladesh
| | - Otun Saha
- Department of Microbiology, Noakhali Science and Technology University, Noakhali, Bangladesh.
| | - Sultana Rajia
- Department of Microbiology, Noakhali Science and Technology University, Noakhali, Bangladesh
| | | | - Md Habib Ullah Masum
- Department of Microbiology, Noakhali Science and Technology University, Noakhali, Bangladesh
| | | | - Foysal Hossen
- Department of Microbiology, Noakhali Science and Technology University, Noakhali, Bangladesh
| | | | - Firoz Ahmed
- Department of Microbiology, Noakhali Science and Technology University, Noakhali, Bangladesh
| | - Iftekhar Bin Naser
- Department of Mathematics and Natural Sciences, BRAC University, Dhaka, Bangladesh
| | - Mohammad Ruhul Amin
- Department of Microbiology, Noakhali Science and Technology University, Noakhali, Bangladesh.
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Masum MHU, Rajia S, Bristi UP, Akter MS, Amin MR, Shishir TA, Ferdous J, Ahmed F, Rahaman MM, Saha O. In Silico Functional Characterization of a Hypothetical Protein From Pasteurella Multocida Reveals a Novel S-Adenosylmethionine-Dependent Methyltransferase Activity. Bioinform Biol Insights 2023; 17:11779322231184024. [PMID: 37424709 PMCID: PMC10328030 DOI: 10.1177/11779322231184024] [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: 04/01/2023] [Accepted: 06/06/2023] [Indexed: 07/11/2023] Open
Abstract
Genomes may now be sequenced in a matter of weeks, leading to an influx of "hypothetical" proteins (HP) whose activities remain a mystery in GenBank. The information included inside these genes has quickly grown in prominence. Thus, we selected to look closely at the structure and function of an HP (AFF25514.1; 246 residues) from Pasteurella multocida (PM) subsp. multocida str. HN06. Possible insights into bacterial adaptation to new environments and metabolic changes might be gained by studying the functions of this protein. The PM HN06 2293 gene encodes an alkaline cytoplasmic protein with a molecular weight of 28352.60 Da, an isoelectric point (pI) of 9.18, and an overall average hydropathicity of around -0.565. One of its functional domains, tRNA (adenine (37)-N6)-methyltransferase TrmO, is a S-adenosylmethionine (SAM)-dependent methyltransferase (MTase), suggesting that it belongs to the Class VIII SAM-dependent MTase family. The tertiary structures represented by HHpred and I-TASSER models were found to be flawless. We predicted the model's active site using the Computed Atlas of Surface Topography of Proteins (CASTp) and FTSite servers, and then displayed it in 3 dimensional (3D) using PyMOL and BIOVIA Discovery Studio. Based on molecular docking (MD) results, we know that HP interacts with SAM and S-adenosylhomocysteine (SAH), 2 crucial metabolites in the tRNA methylation process, with binding affinities of 7.4 and 7.5 kcal/mol, respectively. Molecular dynamic simulations (MDS) of the docked complex, which included only modest structural adjustments, corroborated the strong binding affinity of SAM and SAH to the HP. Evidence for HP's possible role as an SAM-dependent MTase was therefore given by the findings of Multiple sequence alignment (MSA), MD, and molecular dynamic modeling. These in silico data suggest that the investigated HP might be used as a useful adjunct in the investigation of Pasteurella infections and the development of drugs to treat zoonotic pasteurellosis.
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Affiliation(s)
- Md. Habib Ullah Masum
- Department of Microbiology, Noakhali Science and Technology University, Noakhali, Bangladesh
| | - Sultana Rajia
- Department of Microbiology, Noakhali Science and Technology University, Noakhali, Bangladesh
| | - Uditi Paul Bristi
- Department of Microbiology, Noakhali Science and Technology University, Noakhali, Bangladesh
| | - Mir Salma Akter
- Department of Microbiology, Noakhali Science and Technology University, Noakhali, Bangladesh
| | - Mohammad Ruhul Amin
- Department of Microbiology, Noakhali Science and Technology University, Noakhali, Bangladesh
| | - Tushar Ahmed Shishir
- Department of Mathematics and Natural Sciences, BRAC University, Dhaka, Bangladesh
| | - Jannatul Ferdous
- Department of Medicine, Abdul Malek Ukil Medical College, Noakhali, Bangladesh
| | - Firoz Ahmed
- Department of Microbiology, Noakhali Science and Technology University, Noakhali, Bangladesh
| | | | - Otun Saha
- Department of Microbiology, Noakhali Science and Technology University, Noakhali, Bangladesh
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Khanam K, Mostofa Kamal AHM, Yeasmin M, Rajia S. Antidiabetic and Antihyperlipidemic Activity of β-carotene on Streptozotocin-induced Diabetic Rats. J Pharm Res Int 2022. [DOI: 10.9734/jpri/2022/v34i627283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Objective: A vital anti-oxidant, β-carotene has the capacity to reduce reactive oxidative stress, metabolic syndrome such as Type 2 (T2) Diabetes Mellitus (DM) and prevent inflammation, obesity, alzheimer and cardiovascular diseases in human. In this study, we evaluated the efficacy of β-carotene on streptozotocin (STZ)- induced T2DM rats.
Methods: Diabetes was induced in Wister rats through the intraperitoneal administration of STZ (50 mg/kg b.w.). Antihyperlipidemic activities of β-carotene were evaluated by oral dose (10 mg/70 kg b.w.) once daily for 21 days. Metformin (12.1 mg/kg b.w.) was used as a positive control.
Results: Blood samples of rats were drawn by tail vein puncture and cardiac puncture to determine the fasting blood glucose (FBG) and serum level of total cholesterol (TC), triglycerides (TG), low-density lipoprotein (LDL) and high-density lipoprotein (HDL), respectively. The result of individual treatment of β-carotene and metformin significantly (p<0.001) reversed the diabetes induced increase in FBG, LDL, TC and TG, whereas pointedly increased the STZ-induced decrease in HDL, if compared to the diabetic control.
Conclusion: The monotherapy of β-carotene had important antidiabetic and antihyperlipidemic effects and provided a scientific rationale for their use in antidiabetic therapy as a potential antioxidant.
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Khanam K, Rajia S, Yeasmin M, Morshed M, Haque R. Synergistic Effect of β-Carotene and Metformin on Antihyperglycemic and Antidyslipidemic Activities in Streptozotocin-Induced Diabetic Rats. JPRI 2021. [DOI: 10.9734/jpri/2021/v33i51a33471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Purpose: Worldwide prevalence of diabetes mellitus (DM) has become an issue of great concern in current decades. To date, a large number of biological properties have been reported from carotenoids, particularly protective effects against cancer, cardiovascular diseases, and DM, including enhancement of insulin sensitivity.In this study, we aimed to evaluate the efficacy of β-carotene as an additive agent with metformin in ameliorating Type2 (T2)DM.
Methods: In this experiment, fasting blood glucose level (BGL), low density lipoprotein (LDL), high density lipoprotein (HDL), total cholesterol (TC) and triglycerides (TG) were measured in serum of Wister albino rats with streptozotocin (STZ)-induced diabetes and after treatment with metformin (850mg/70kg b.w.) and β-carotene (10 mg/70kg b.w.) administered orally once daily for three weeks.
Results: Metformin and β-carotene treatments individually resulted in significant (p<0.001) reversal of the diabetes induced increase in BGL, LDL, TC and TG, whereas significantly increased the STZ-induced decrease in HDL, compared to diabetic control. As compared to the monotherapy, the combination therapy with metformin and β-carotene showed a significant (p<0.001) attenuation of BGL and serum level of LDL, TC, and TG and a slight increase (p<0.05) in serum HDL level, as compared to the treatment with β-carotene, but not with metformin.
Conclusion: The combination therapy of β-carotene and metformin produced a significant antidiabetic and antihyperlipidemic effect than the monotherapy alone and provides a scientific rationale for their use in antidiabetic therapy as a potential antioxidant.
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Tasnim N, Dutta P, Nayeem J, Masud P, Ferdousi A, Ghosh AS, Hossain M, Rajia S, Kubra KT, Sakibuzzaman M, Khan AT. Osteoporosis, an Inevitable Circumstance of Chronic Kidney Disease: A Systematic Review. Cureus 2021; 13:e18488. [PMID: 34692259 PMCID: PMC8526087 DOI: 10.7759/cureus.18488] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [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] [Accepted: 10/04/2021] [Indexed: 12/15/2022] Open
Abstract
Nowadays, chronic kidney disease (CKD) and osteoporosis have become crucial health-related issues globally. CKD-induced osteoporosis is a systemic disease characterized by the disruption of mineral, hormone, and vitamin homeostasis that elevates the likelihood of fracture. Here, we review recent studies on the association of CKD and osteoporosis. In particular, we focus on the pathogenesis of CKD-associated osteoporosis, including the homeostasis and pathways of several components such as parathyroid hormone, calcium, phosphate, vitamin D, fibroblast growth factor, and klotho, as well as abnormal bone mineralization, remodeling, and turnover. In addition, we explore the diagnostic tools and possible therapeutic approaches for the management and prevention of CKD-associated osteoporosis. Patients with CKD show higher osteoporosis prevalence, greater fracture rate, increased morbidity and mortality, and an elevated occurrence of hip fracture. We also rule out that increased severity of CKD is related to a more severe condition of osteoporosis. Furthermore, supplements such as calcium and vitamin D as well as lifestyle modifications such as exercise and cessation of smoking and alcohol help in fracture prevention. However, new approaches and advancements in treatment are needed to reduce the fracture risk in patients with CKD. Therefore, further collaborative multidisciplinary research is needed in this regard.
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Affiliation(s)
- Nishat Tasnim
- Internal Medicine, Sacramento Veterans Affairs Medical Center, Mather, USA
| | - Priyata Dutta
- Internal Medicine, Mymensingh Medical College, Mymensingh, BGD
| | - Jannatun Nayeem
- Internal Medicine, Cumilla Medical College and Hospital, Cumilla, BGD
| | - Parisha Masud
- Internal Medicine, Columbia University Medical Center, New York, USA
| | - Afsana Ferdousi
- Internal Medicine, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
| | - Ammy S Ghosh
- Internal Medicine, Institute of Applied Health Sciences, Chittagong, BGD
| | - Maksuda Hossain
- Biodesign Institute Center for Immunotherapy, Vaccines and Virotherapy, Arizona State University, Tempe, USA
| | - Sultana Rajia
- Internal Medicine, Sher-E Bangla Medical College, Barishal, BGD
| | - Khadija T Kubra
- Internal Medicine, Bangladesh Medical College and Hospital, Dhaka, BGD
| | - Md Sakibuzzaman
- Internal Medicine, University of Mississippi Medical Center, Jackson, USA.,Experimental Pathology (Cancer Biology), Mayo Clinic, Rochester, USA.,Internal Medicine, Sir Salimullah Medical College, Dhaka, BGD.,Neuroscience, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
| | - Asma T Khan
- Division of Research & Academic Affairs, Larkin Community Hospital, South Miami, USA
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7
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Avijit B, Zerin T, Rajia S. Comparative Phytochemical and Antibacterial Properties of Piper betle Leave Extracts from Barguna and Moheshkhali, Bangladesh. Iran J Med Microbiol 2020. [DOI: 10.30699/ijmm.14.2.125] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Fujii Y, Gerdol M, Kawsar SMA, Hasan I, Spazzali F, Yoshida T, Ogawa Y, Rajia S, Kamata K, Koide Y, Sugawara S, Hosono M, Tame JRH, Fujita H, Pallavicini A, Ozeki Y. A GM1b/asialo-GM1 oligosaccharide-binding R-type lectin from purplish bifurcate mussels Mytilisepta virgata and its effect on MAP kinases. FEBS J 2019; 287:2612-2630. [PMID: 31769916 PMCID: PMC7317968 DOI: 10.1111/febs.15154] [Citation(s) in RCA: 8] [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: 03/12/2019] [Revised: 09/16/2019] [Accepted: 11/22/2019] [Indexed: 12/23/2022]
Abstract
A 15‐kDa lectin, termed SeviL, was isolated from Mytilisepta virgata (purplish bifurcate mussel). SeviL forms a noncovalent dimer that binds strongly to ganglio‐series GM1b oligosaccharide (Neu5Acɑ2‐3Galβ1‐3GalNAcβ1‐4Galβ1‐4Glc) and its precursor, asialo‐GM1 (Galβ1‐3GalNAcβ1‐4Galβ1‐4Glc). SeviL also interacts weakly with the glycan moiety of SSEA‐4 hexaose (Neu5Acα2‐3Galβ1‐3GalNAcβ1‐3Galα1‐4Galβ1‐4Glc). A partial protein sequence of the lectin was determined by mass spectrometry, and the complete sequence was identified from transcriptomic analysis. SeviL, consisting of 129 amino acids, was classified as an R(icin B)‐type lectin, based on the presence of the QxW motif characteristic of this fold. SeviL mRNA is highly expressed in gills and, in particular, mantle rim tissues. Orthologue sequences were identified in other species of the family Mytilidae, including Mytilus galloprovincialis, from which lectin MytiLec‐1 was isolated and characterized in our previous studies. Thus, mytilid species contain lectins belonging to at least two distinct families (R‐type lectins and mytilectins) that have a common β‐trefoil fold structure but differing glycan‐binding specificities. SeviL displayed notable cytotoxic (apoptotic) effects against various cultured cell lines (human breast, ovarian, and colonic cancer; dog kidney) that possess asialo‐GM1 oligosaccharide at the cell surface. This cytotoxic effect was inhibited by the presence of anti‐asialo‐GM1 oligosaccharide antibodies. With HeLa ovarian cancer cells, SeviL showed dose‐ and time‐dependent activation of kinase MKK3/6, p38 MAPK, and caspase‐3/9. The transduction pathways activated by SeviL via the glycosphingolipid oligosaccharide were triggered apoptosis. Database Nucleotide sequence data have been deposited in the GenBank database under accession numbers MK434191, MK434192, MK434193, MK434194, MK434195, MK434196, MK434197, MK434198, MK434199, MK434200, and MK434201.
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Affiliation(s)
- Yuki Fujii
- Graduate School of Pharmaceutical Sciences, Nagasaki International University, Sasebo, Japan
| | - Marco Gerdol
- Department of Life Sciences, University of Trieste, Italy
| | - Sarkar M A Kawsar
- Department of Chemistry, Faculty of Science, University of Chittagong, Bangladesh.,School of Sciences, Yokohama City University, Japan
| | - Imtiaj Hasan
- School of Sciences, Yokohama City University, Japan.,Department of Biochemistry and Molecular Biology, Faculty of Science, University of Rajshahi, Bangladesh
| | | | - Tatsusada Yoshida
- Graduate School of Pharmaceutical Sciences, Nagasaki International University, Sasebo, Japan
| | - Yukiko Ogawa
- Graduate School of Pharmaceutical Sciences, Nagasaki International University, Sasebo, Japan
| | - Sultana Rajia
- School of Sciences, Yokohama City University, Japan.,Department of Pharmacy, Varendra University, Rajshahi, Bangladesh
| | - Kenichi Kamata
- Graduate School of Medical Life Science, Yokohama City University, Japan
| | | | - Shigeki Sugawara
- Institute of Molecular Biomembrane and Glycobiology, Tohoku Medical and Pharmaceutical University, Sendai, Japan
| | - Masahiro Hosono
- Institute of Molecular Biomembrane and Glycobiology, Tohoku Medical and Pharmaceutical University, Sendai, Japan
| | - Jeremy R H Tame
- Graduate School of Medical Life Science, Yokohama City University, Japan
| | - Hideaki Fujita
- Graduate School of Pharmaceutical Sciences, Nagasaki International University, Sasebo, Japan
| | - Alberto Pallavicini
- Department of Life Sciences, University of Trieste, Italy.,Department of Biology and Evolution of Marine Organisms, Stazione Zoologica Anton Dohrn Napoli, Italy
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Wangensteen H, Alamgir M, Rajia S, Meza TJ, Samuelsen AB, Malterud KE. Cytotoxicity and Brine Shrimp Lethality of Rotenoids and Extracts from Sarcolobus globosus. Nat Prod Commun 2019. [DOI: 10.1177/1934578x0700200810] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The present study was performed to examine the brine shrimp toxicity and cytotoxic effect of the mangrove plant Sarcolobus globosus. The Et2O and EtOAc extracts were toxic to brine shrimp larvae (LC50 = 1.6 and 4.0 μg/mL) and Caco-2 cells (IC50 = 6.7 and 21.2 μg/mL). Three rotenoids isolated from S. globosus, tephrosin, sarcolobin and 12a-hydroxyrotenone, showed high toxicity in the brine shrimp assay with LC50 values of 2.2, 2.8 and 1.9 μM, respectively.
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Affiliation(s)
- Helle Wangensteen
- Department of Pharmaceutical Chemistry – Pharmacognosy, School of Pharmacy, University of Oslo, P. O. Box 1068 Blindern, N-0316 Oslo, Norway
| | | | - Sultana Rajia
- Department of Pharmacy, Jahangirnagar University, Savar, Dhaka-1342, Bangladesh
| | - Trine J. Meza
- Matforsk-Norwegian Food Research Institute, Osloveien 1, N-1430 Ås, Norway
| | - Anne Berit Samuelsen
- Department of Pharmaceutical Chemistry – Pharmacognosy, School of Pharmacy, University of Oslo, P. O. Box 1068 Blindern, N-0316 Oslo, Norway
| | - Karl E. Malterud
- Department of Pharmaceutical Chemistry – Pharmacognosy, School of Pharmacy, University of Oslo, P. O. Box 1068 Blindern, N-0316 Oslo, Norway
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Fujii Y, Gerdol M, Hasan I, Koide Y, Matsuzaki R, Ikeda M, Rajia S, Ogawa Y, Kawsar SMA, Ozeki Y. Phylogeny and Properties of a Novel Lectin Family with β-Trefoil Folding in Mussels. TRENDS GLYCOSCI GLYC 2018. [DOI: 10.4052/tigg.1717.1e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- Yuki Fujii
- Department of Pharmaceutical Sciences, Nagasaki International University
| | - Marco Gerdol
- Department of Life Sciences, University of Trieste
| | - Imtiaj Hasan
- Department of Life and Environmental System Science, Yokohama City University
- Department of Biochemistry and Molecular Biology, University of Rajshahi
| | - Yasuhiro Koide
- Department of Life and Environmental System Science, Yokohama City University
| | - Risa Matsuzaki
- Department of Life and Environmental System Science, Yokohama City University
| | - Mayu Ikeda
- Department of Life and Environmental System Science, Yokohama City University
| | - Sultana Rajia
- Department of Life and Environmental System Science, Yokohama City University
- Department of Pharmacy, Faculty of Pharmacy, Varendra University
| | - Yukiko Ogawa
- Department of Pharmaceutical Sciences, Nagasaki International University
| | - S. M. Abe Kawsar
- Department of Life and Environmental System Science, Yokohama City University
- Department of Chemistry, Faculty of Science, University of Chittagong
| | - Yasuhiro Ozeki
- Department of Life and Environmental System Science, Yokohama City University
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Fujii Y, Gerdol M, Hasan I, Koide Y, Matsuzaki R, Ikeda M, Rajia S, Ogawa Y, Kawsar SMA, Ozeki Y. Phylogeny and Properties of a Novel Lectin Family with β-Trefoil Folding in Mussels. TRENDS GLYCOSCI GLYC 2018. [DOI: 10.4052/tigg.1717.1j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Yuki Fujii
- Department of Pharmaceutical Sciences, Nagasaki International University
| | - Marco Gerdol
- Department of Life Sciences, University of Trieste
| | - Imtiaj Hasan
- Department of Life and Environmental System Science, Yokohama City University
- Department of Biochemistry and Molecular Biology, University of Rajshahi
| | - Yasuhiro Koide
- Department of Life and Environmental System Science, Yokohama City University
| | - Risa Matsuzaki
- Department of Life and Environmental System Science, Yokohama City University
| | - Mayu Ikeda
- Department of Life and Environmental System Science, Yokohama City University
| | - Sultana Rajia
- Department of Life and Environmental System Science, Yokohama City University
- Department of Pharmacy, Faculty of Pharmacy, Varendra University
| | - Yukiko Ogawa
- Department of Pharmaceutical Sciences, Nagasaki International University
| | - S. M. Abe Kawsar
- Department of Life and Environmental System Science, Yokohama City University
- Department of Chemistry, Faculty of Science, University of Chittagong
| | - Yasuhiro Ozeki
- Department of Life and Environmental System Science, Yokohama City University
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12
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Hasan I, Gerdol M, Fujii Y, Rajia S, Koide Y, Yamamoto D, Kawsar SMA, Ozeki Y. cDNA and Gene Structure of MytiLec-1, A Bacteriostatic R-Type Lectin from the Mediterranean Mussel (Mytilus galloprovincialis). Mar Drugs 2016; 14:md14050092. [PMID: 27187419 PMCID: PMC4882566 DOI: 10.3390/md14050092] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Revised: 04/21/2016] [Accepted: 04/28/2016] [Indexed: 02/06/2023] Open
Abstract
MytiLec is an α-d-galactose-binding lectin with a unique primary structure isolated from the Mediterranean mussel (Mytilus galloprovincialis). The lectin adopts a β-trefoil fold that is also found in the B-sub-unit of ricin and other ricin-type (R-type) lectins. We are introducing MytiLec(-1) and its two variants (MytiLec-2 and -3), which both possess an additional pore-forming aerolysin-like domain, as members of a novel multi-genic “mytilectin family” in bivalve mollusks. Based on the full length mRNA sequence (911 bps), it was possible to elucidate the coding sequence of MytiLec-1, which displays an extended open reading frame (ORF) at the 5′ end of the sequence, confirmed both at the mRNA and at the genomic DNA sequence level. While this extension could potentially produce a polypeptide significantly longer than previously reported, this has not been confirmed yet at the protein level. MytiLec-1 was revealed to be encoded by a gene consisting of two exons and a single intron. The first exon comprised the 5′UTR and the initial ATG codon and it was possible to detect a putative promoter region immediately ahead of the transcription start site in the MytiLec-1 genomic locus. The remaining part of the MytiLec-1 coding sequence (including the three sub-domains, the 3′UTR and the poly-A signal) was included in the second exon. The bacteriostatic activity of MytiLec-1 was determined by the agglutination of both Gram-positive and Gram-negative bacteria, which was reversed by the co-presence of α-galactoside. Altogether, these data support the classification of MytiLec-1 as a member of the novel mytilectin family and suggest that this lectin may play an important role as a pattern recognition receptor in the innate immunity of mussels.
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Affiliation(s)
- Imtiaj Hasan
- Department of Life and Environmental System Science, Graduate School of NanoBio Sciences, Yokohama City University, 22-2 Seto, Kanazawa-ku, Yokohama 236-0027, Japan.
- Department of Biochemistry and Molecular Biology, Faculty of Science, University of Rajshahi, Rajshahi 6205, Bangladesh.
| | - Marco Gerdol
- Department of Life Sciences, University of Trieste, Via Licio Giorgieri 5, Trieste 34127, Italy.
| | - Yuki Fujii
- Department of Pharmacy, Faculty of Pharmaceutical Science, Nagasaki International University, 2825-7 Huis Ten Bosch, Sasebo, Nagasaki 859-3298, Japan.
| | - Sultana Rajia
- Department of Life and Environmental System Science, Graduate School of NanoBio Sciences, Yokohama City University, 22-2 Seto, Kanazawa-ku, Yokohama 236-0027, Japan.
- Department of Natural Science, Varendra University, Rajshahi 6204, Bangladesh.
| | - Yasuhiro Koide
- Department of Life and Environmental System Science, Graduate School of NanoBio Sciences, Yokohama City University, 22-2 Seto, Kanazawa-ku, Yokohama 236-0027, Japan.
| | - Daiki Yamamoto
- Department of Life and Environmental System Science, Graduate School of NanoBio Sciences, Yokohama City University, 22-2 Seto, Kanazawa-ku, Yokohama 236-0027, Japan.
| | - Sarkar M A Kawsar
- Department of Life and Environmental System Science, Graduate School of NanoBio Sciences, Yokohama City University, 22-2 Seto, Kanazawa-ku, Yokohama 236-0027, Japan.
- Department of Chemistry, Faculty of Sciences, University of Chittagong, Chittagong 4331, Bangladesh.
| | - Yasuhiro Ozeki
- Department of Life and Environmental System Science, Graduate School of NanoBio Sciences, Yokohama City University, 22-2 Seto, Kanazawa-ku, Yokohama 236-0027, Japan.
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Hasan I, Watanabe M, Ishizaki N, Sugita-Konishi Y, Kawakami Y, Suzuki J, Dogasaki C, Rajia S, Kawsar SMA, Koide Y, Kanaly RA, Sugawara S, Hosono M, Ogawa Y, Fujii Y, Iriko H, Hamako J, Matsui T, Ozeki Y. Correction: Hasan, I., et al. A Galactose-Binding Lectin Isolated from Aplysia kurodai (Sea Hare) Eggs Inhibits Streptolysin-Induced Hemolysis. Molecules 2014, 19, 13990-14003. Molecules 2016; 21:129. [PMID: 26791293 PMCID: PMC6273071 DOI: 10.3390/molecules21010129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Accepted: 01/06/2016] [Indexed: 11/16/2022] Open
Affiliation(s)
- Imtiaj Hasan
- Laboratories of Glycobiology & Marine Biochemistry and Molecular Toxicology, Department of Life and Environmental System Science, Graduate School of NanoBio Sciences, Yokohama City University, 22-2 Seto, Kanazawa-ku, Yokohama 236-0027, Japan.
- Department of Biochemistry and Molecular Biology, Faculty of Science, University of Rajshahi, Rajshahi-6205, Bangladesh.
| | - Miharu Watanabe
- School of Life and Environmental Science, Azabu University, 1-17-71, Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5201, Japan.
| | - Naoto Ishizaki
- School of Life and Environmental Science, Azabu University, 1-17-71, Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5201, Japan.
| | - Yoshiko Sugita-Konishi
- School of Life and Environmental Science, Azabu University, 1-17-71, Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5201, Japan.
| | - Yasushi Kawakami
- School of Life and Environmental Science, Azabu University, 1-17-71, Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5201, Japan.
| | - Jun Suzuki
- School of Life and Environmental Science, Azabu University, 1-17-71, Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5201, Japan.
| | - Chikaku Dogasaki
- School of Life and Environmental Science, Azabu University, 1-17-71, Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5201, Japan.
| | - Sultana Rajia
- Laboratories of Glycobiology & Marine Biochemistry and Molecular Toxicology, Department of Life and Environmental System Science, Graduate School of NanoBio Sciences, Yokohama City University, 22-2 Seto, Kanazawa-ku, Yokohama 236-0027, Japan.
- Department of Natural Science, Varendra University, Rajshahi-6204, Bangladesh.
| | - Sarkar M A Kawsar
- Department of Chemistry, Faculty of Sciences, University of Chittagong, Chittagong-4331, Bangladesh.
| | - Yasuhiro Koide
- Laboratories of Glycobiology & Marine Biochemistry and Molecular Toxicology, Department of Life and Environmental System Science, Graduate School of NanoBio Sciences, Yokohama City University, 22-2 Seto, Kanazawa-ku, Yokohama 236-0027, Japan.
| | - Robert A Kanaly
- Laboratories of Glycobiology & Marine Biochemistry and Molecular Toxicology, Department of Life and Environmental System Science, Graduate School of NanoBio Sciences, Yokohama City University, 22-2 Seto, Kanazawa-ku, Yokohama 236-0027, Japan.
| | - Shigeki Sugawara
- Division of Cell Recognition Study, Institute of Molecular Biomembrane and Glycobiology, Tohoku Pharmaceutical University, 4-4-1 Komatsushima, Aoba-ku, Sendai 981-8558, Japan.
| | - Masahiro Hosono
- Division of Cell Recognition Study, Institute of Molecular Biomembrane and Glycobiology, Tohoku Pharmaceutical University, 4-4-1 Komatsushima, Aoba-ku, Sendai 981-8558, Japan.
| | - Yukiko Ogawa
- Department of Pharmacy, Faculty of Pharmaceutical Science, Nagasaki International University, 2825-7 Huis Ten Bosch, Sasebo, Nagasaki 859-3298, Japan.
| | - Yuki Fujii
- Department of Pharmacy, Faculty of Pharmaceutical Science, Nagasaki International University, 2825-7 Huis Ten Bosch, Sasebo, Nagasaki 859-3298, Japan.
| | - Hideyuki Iriko
- Department of Parasitology, Graduate School of Health Sciences, Kobe University, 7-10-2, Tomogaoka, Suma-ku, Kobe 654-0142, Japan.
| | - Jiharu Hamako
- Department of Biology, School of Health Sciences, Fujita Health University, Toyoake, Aichi 470-1192, Japan.
| | - Taei Matsui
- Department of Biology, School of Health Sciences, Fujita Health University, Toyoake, Aichi 470-1192, Japan.
| | - Yasuhiro Ozeki
- Laboratories of Glycobiology & Marine Biochemistry and Molecular Toxicology, Department of Life and Environmental System Science, Graduate School of NanoBio Sciences, Yokohama City University, 22-2 Seto, Kanazawa-ku, Yokohama 236-0027, Japan.
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Asaduzzaman M, Hasan I, Rajia S, Khan N, Kabir KA. Impact of tannery effluents on the aquatic environment of the Buriganga River in Dhaka, Bangladesh. Toxicol Ind Health 2014; 32:1106-13. [DOI: 10.1177/0748233714548206] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
This study presents an overview of the existence and effects of six heavy metals, chromium (Cr), lead (Pb), cadmium (Cd), mercury (Hg), manganese (Mn), and aluminum (Al), in tannery effluents released to the Buriganga River in Dhaka, Bangladesh. The pollutants were found in three different sources, such as effluents from tanneries, contaminated river water and three species of fish—climbing perch ( Anabas testudineus), spotted snakehead ( Channa punctata), and Black tilapia ( Oreochromis mossambicus) caught from the river. Tannery effluents, water, and fish samples were collected from three different factories, five sample stations, and three different harvesting points, respectively. Effluents from all three factories contained significant amounts of heavy metals, especially Cr (374.19 ppm in average), whereas lesser amounts were found in the tissues of the three fish species studied. The trends in tissue elemental concentrations of fish were Cr > Pb > Al > Hg > Mn > Cd. In most cases (Cr, Cd, Mn, and Al), heavy metal concentrations were found to be greater in climbing perch than in Black tilapia and spotted snakehead. Although the river water contained high concentrations of harmful heavy metals, the fish species under study had concentrations well below the permissible Food and Agriculture Organization/World Health Organization levels for those metals and seemed to be safe for human consumption.
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Affiliation(s)
- Mohammad Asaduzzaman
- Department of Applied Chemistry and Chemical Technology, University of Dhaka, Dhaka, Bangladesh
| | - Imtiaj Hasan
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, Bangladesh
- Laboratory of Glycobiology and Marine Biochemistry, Department of Life and Environmental System Science, Graduate School of NanoBio Sciences, Yokohama City University, Yokohama, Japan
| | - Sultana Rajia
- Department of Natural Science, Varendra University, Rajshahi, Bangladesh
| | - Nazneen Khan
- WorldFish Center, Bangladesh and South Asia Office, Dhaka, Bangladesh
| | - Kazi Ahmed Kabir
- WorldFish Center, Bangladesh and South Asia Office, Dhaka, Bangladesh
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Hasan I, Watanabe M, Ishizaki N, Sugita-Konishi Y, Kawakami Y, Suzuki J, Dogasaki C, Rajia S, Kawsar SMA, Koide Y, Kanaly RA, Sugawara S, Hosono M, Ogawa Y, Fujii Y, Iriko H, Hamako J, Matsui T, Ozeki Y. A galactose-binding lectin isolated from Aplysia kurodai (sea hare) eggs inhibits streptolysin-induced hemolysis. Molecules 2014; 19:13990-4003. [PMID: 25197935 PMCID: PMC6271371 DOI: 10.3390/molecules190913990] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [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: 07/13/2014] [Revised: 08/21/2014] [Accepted: 09/02/2014] [Indexed: 01/01/2023] Open
Abstract
A specific galactose-binding lectin was shown to inhibit the hemolytic effect of streptolysin O (SLO), an exotoxin produced by Streptococcus pyogenes. Commercially available lectins that recognize N-acetyllactosamine (ECA), T-antigen (PNA), and Tn-antigen (ABA) agglutinated rabbit erythrocytes, but had no effect on SLO-induced hemolysis. In contrast, SLO-induced hemolysis was inhibited by AKL, a lectin purified from sea hare (Aplysia kurodai) eggs that recognizes α-galactoside oligosaccharides. This inhibitory effect was blocked by the co-presence of d-galactose, which binds to AKL. A possible explanation for these findings is that cholesterol-enriched microdomains containing glycosphingolipids in the erythrocyte membrane become occupied by tightly stacked lectin molecules, blocking the interaction between cholesterol and SLO that would otherwise result in penetration of the membrane. Growth of S. pyogenes was inhibited by lectins from a marine invertebrate (AKL) and a mushroom (ABA), but was promoted by a plant lectin (ECA). Both these inhibitory and promoting effects were blocked by co-presence of galactose in the culture medium. Our findings demonstrate the importance of glycans and lectins in regulating mechanisms of toxicity, creation of pores in the target cell membrane, and bacterial growth.
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Affiliation(s)
- Imtiaj Hasan
- Laboratories of Glycobiology & Marine Biochemistry and Molecular Toxicology, Department of Life and Environmental System Science, Graduate School of NanoBio Sciences, Yokohama City University, 22-2 Seto, Kanazawa-ku, Yokohama 236-0027, Japan. Department of Biochemistry and Molecular Biology, Faculty of Science, University of Rajshahi, Rajshahi-6205, Bangladesh.
| | - Miharu Watanabe
- School of Life and Environmental Science, Azabu University, 1-17-71, Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5201, Japan.
| | - Naoto Ishizaki
- School of Life and Environmental Science, Azabu University, 1-17-71, Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5201, Japan.
| | - Yoshiko Sugita-Konishi
- School of Life and Environmental Science, Azabu University, 1-17-71, Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5201, Japan.
| | - Yasushi Kawakami
- School of Life and Environmental Science, Azabu University, 1-17-71, Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5201, Japan.
| | - Jun Suzuki
- School of Life and Environmental Science, Azabu University, 1-17-71, Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5201, Japan.
| | - Chikaku Dogasaki
- School of Life and Environmental Science, Azabu University, 1-17-71, Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5201, Japan.
| | - Sultana Rajia
- Laboratories of Glycobiology & Marine Biochemistry and Molecular Toxicology, Department of Life and Environmental System Science, Graduate School of NanoBio Sciences, Yokohama City University, 22-2 Seto, Kanazawa-ku, Yokohama 236-0027, Japan.
| | - Sarkar M A Kawsar
- Department of Chemistry, Faculty of Sciences, University of Chittagong, Chittagong-4331, Bangladesh.
| | - Yasuhiro Koide
- Laboratories of Glycobiology & Marine Biochemistry and Molecular Toxicology, Department of Life and Environmental System Science, Graduate School of NanoBio Sciences, Yokohama City University, 22-2 Seto, Kanazawa-ku, Yokohama 236-0027, Japan.
| | - Robert A Kanaly
- Laboratories of Glycobiology & Marine Biochemistry and Molecular Toxicology, Department of Life and Environmental System Science, Graduate School of NanoBio Sciences, Yokohama City University, 22-2 Seto, Kanazawa-ku, Yokohama 236-0027, Japan.
| | - Shigeki Sugawara
- Division of Cell Recognition Study, Institute of Molecular Biomembrane and Glycobiology, Tohoku Pharmaceutical University, 4-4-1 Komatsushima, Aoba-ku, Sendai 981-8558, Japan.
| | - Masahiro Hosono
- Division of Cell Recognition Study, Institute of Molecular Biomembrane and Glycobiology, Tohoku Pharmaceutical University, 4-4-1 Komatsushima, Aoba-ku, Sendai 981-8558, Japan.
| | - Yukiko Ogawa
- Department of Pharmacy, Faculty of Pharmaceutical Science, Nagasaki International University, 2825-7 Huis Ten Bosch, Sasebo, Nagasaki 859-3298, Japan.
| | - Yuki Fujii
- Department of Pharmacy, Faculty of Pharmaceutical Science, Nagasaki International University, 2825-7 Huis Ten Bosch, Sasebo, Nagasaki 859-3298, Japan.
| | - Hideyuki Iriko
- Department of Parasitology, Graduate School of Health Sciences, Kobe University, 7-10-2, Tomogaoka, Suma-ku, Kobe 654-0142, Japan.
| | - Jiharu Hamako
- Department of Biology, School of Health Sciences, Fujita Health University, Toyoake, Aichi 470-1192, Japan.
| | - Taei Matsui
- Department of Biology, School of Health Sciences, Fujita Health University, Toyoake, Aichi 470-1192, Japan.
| | - Yasuhiro Ozeki
- Laboratories of Glycobiology & Marine Biochemistry and Molecular Toxicology, Department of Life and Environmental System Science, Graduate School of NanoBio Sciences, Yokohama City University, 22-2 Seto, Kanazawa-ku, Yokohama 236-0027, Japan.
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Mannan A, Shohel M, Rajia S, Mahmud NU, Kabir S, Hasan I. A cross sectional study on antibiotic resistance pattern of Salmonella typhi clinical isolates from Bangladesh. Asian Pac J Trop Biomed 2014; 4:306-11. [PMID: 25182556 DOI: 10.12980/apjtb.4.2014c770] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [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: 02/04/2014] [Accepted: 03/23/2014] [Indexed: 10/25/2022] Open
Abstract
OBJECTIVE To investigate and compare the resistance and sensitivity of Salmonella typhi samples to commonly used antibiotics in three major divisions of Bangladesh and to evaluate the gradually developing resistance pattern. METHODS The antibiotic susceptibility of 70 clinical isolates collected from blood, sputum, urine and pus samples were identified by specific antisera and with standard biochemical tests. The patients were divided into 5 age groups. Susceptibility and resistance was also tested by Kirby-Bauer disc diffusion method using 12 regularly used antibiotics. RESULTS Antibiotic susceptibility test demonstrated that 64.28% isolates of Salmonella typhi were multidrug resistant. Present study suggests that the clinical samples were mostly resistant against nalidixic acid with all age groups and in all three divisions with similar resistance pattern. Resistance is more common among adult people (30-40 years) and children (0-10 years). Salmonella typhi was mostly sensitive against gentamycin, chloramphenicol and ciprofloxacin. CONCLUSIONS Although the population density of Dhaka region is markedly higher than Rajshahi and Chittagong regions, no significant difference in resistance pattern was found. The rate of multidrug resistance is a matter of concern. Physicians should reconsider before prescribing nalidixic acid and cefixime. Further molecular study is needed to reveal the genomic and proteomic basis of resistance.
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Affiliation(s)
- Adnan Mannan
- Department of Genetic Engineering and Biotechnology, Faculty of Biological Sciences, University of Chittagong, Chittagong-4331, Bangladesh
| | - Mohammad Shohel
- Department of Pharmacy, North South University, Dhaka, Bangladesh
| | - Sultana Rajia
- Department of Pharmacy, Varendra University, Rajshahi-6204, Bangladesh
| | - Niaz Uddin Mahmud
- Department of Computer Science & Engineering, BGC Trust University Bangladesh, Chittagong, Bangladesh
| | - Sanjana Kabir
- Department of Pharmacy, North South University, Dhaka, Bangladesh
| | - Imtiaj Hasan
- Department of Biochemistry and Molecular Biology, Rajshahi University, Rajshahi-6205, Bangladesh ; Laboratory of Glycobiology and Marine Biochemistry, Department of Life and Environmental System Science, Graduate School of Nano Biosciences, Yokohama City University, Yokohama-236-0027, Japan
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Rajia S, Chen H, Morris MJ. Voluntary post weaning exercise restores metabolic homeostasis in offspring of obese rats. Nutr Metab Cardiovasc Dis 2013; 23:574-581. [PMID: 22305126 DOI: 10.1016/j.numecd.2011.12.009] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2011] [Revised: 12/13/2011] [Accepted: 12/13/2011] [Indexed: 01/02/2023]
Abstract
AIM Physical exercise reduces obesity, insulin resistance and dyslipidemia. We previously found that maternal obesity alters central appetite circuits and contributes to increased adiposity, glucose intolerance and metabolic disease in offspring. Here we hypothesized that voluntary exercise would ameliorate the adverse metabolic effects of maternal obesity on offspring. METHODS AND RESULTS Sprague-Dawley females fed chow (C) or high-fat diet HFD (H) were mated. Female offspring from C dams were weaned onto chow (CC); those from H dams recieved chow (HC) or HFD (HH). Half of each group was provided with running wheels (CC(EX), HC(EX), HH(EX); n=10-12). Maternal obesity increased body weight (12%), adiposity, plasma lipids and induced glucose intolerance (HC vs CC; P<0.05). These were exaggerated by postweaning HFD (HH vs HC; P<0.01), showed doubled energy intake, a 37% increase in body weight, insulin resistance and glucose intolerance (HH vs HC; P<0.01). Exercise reduced fat mass, plasma lipids, HOMA and fasting glucose in HC(EX) (vs HC; P<0.05) and HH(EX) (vs HH; P<0.01). Values in HC(EX) were indistinguishable from CC, however in HH(EX) these metabolic parameters remained higher than the sedentary HC and CC rats (P<0.01). mRNA expression of hypothalamic pro-opiomelanocortin, and adipose tumour necrosis factor α and 11β-hydroxysteroid dehydrogenase type 1 were reduced by exercise in HH(EX) (vs HH; P<0.05). CONCLUSION While voluntary exercise almost completely reversed the metabolic effects of maternal obesity in chow fed offspring, it did not fully attenuate the increased adiposity, glucose intolerance and insulin resistance in offspring weaned onto HFD.
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Affiliation(s)
- S Rajia
- School of Medical Sciences, University of New South Wales, Sydney, NSW 2052, Australia
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Abstract
Maternal obesity has long-term consequences for the development of hypothalamic neurones involved in energy homeostasis and the metabolic profile in offspring. In the present study, we compared the effects of maternal obesity induced by longstanding high-fat diet (HFD) with milder postnatal overfeeding during suckling induced by litter size reduction. Female Sprague-Dawley rats consumed chow (C) or HFD. On postnatal day 1, litters from chow dams were adjusted to three per dam (small litter, CS) versus 12 control (normal litter, CN). Litters from HFD dams were adjusted to 12 per dam and fed HFD after weaning to induce obesity (HN). Thus, two degrees of maternal overnutrition were produced (CS and HN). To test whether postweaning diet can amplify the effects of maternal obesity, male offspring weaned onto chow or HFD were followed to 21 weeks. Maternal postnatal overnutrition (CS) and HFD-induced maternal obesity (HN) increased body weight and fat mass in offspring compared to those from control dams (CN). Significant glucose intolerance was induced by both degrees of maternal overnutrition, but only in offspring consuming HFD. HFD-induced maternal obesity (HN) was linked to increased offspring leptin, insulin, lipids, insulin resistance and hyperphagia, and was exaggerated by postweaning HFD. No effect of maternal postnatal overnutrition (CS) was seen on these parameters. Hypothalamic signal transducer and activator of transcription-3 and suppressor of cytokine signalling-3 mRNA were significantly elevated by maternal HFD (HN) in the HFD-fed offspring. The data obtained suggest that even mild maternal overnutrition (CS) led to increased adiposity, glucose intolerance and altered brain appetite regulators in offspring. A greater impact of HFD-induced maternal obesity was evident. Marked additive effects were observed when animals consumed a HFD postweaning.
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Affiliation(s)
- S Rajia
- Department of Pharmacology, School of Medical Sciences, University of New South Wales, Sydney, NSW, Australia
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Rahman T, Rahman KA, Rajia S, Alamgir M, Khan MTH, Choudhuri MSK. Evaluation of antidiarrhoeal activity of Cardamom (Elettaria cardamomum) on mice models. ACTA ACUST UNITED AC 2008. [DOI: 10.3742/opem.2008.8.2.130] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Abstract
Two triglycerides, both bearing polyunsaturated fatty acid residues, were isolated from the hexane extract of Urena lobata. One of them is characterized by the presence of three different polyunsaturated fatty acids. Their structures were studied with spectral methods.
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Affiliation(s)
- Carlo F Morelli
- Dipartimento di Chimica Organica e Industriale, Università degli Studi di Milano, via Venezian 21, I-20133 Milano, Italy.
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Wangensteen H, Miron A, Alamgir M, Rajia S, Samuelsen AB, Malterud KE. Antioxidant and 15-lipoxygenase inhibitory activity of rotenoids, isoflavones and phenolic glycosides from Sarcolobus globosus. Fitoterapia 2006; 77:290-5. [PMID: 16701962 DOI: 10.1016/j.fitote.2006.03.017] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.6] [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: 08/17/2005] [Accepted: 03/31/2006] [Indexed: 11/28/2022]
Abstract
From Sarcolobus globosus, two rotenoids (villosinol and 6-oxo-6a,12a-dehydrodeguelin), one isoflavone (genistin) and four phenolic glycosides (vanillic acid 4-O-beta-d-glucoside, glucosyringic acid, tachioside and isotachioside) were identified for the first time from this species. Extracts and compounds from S. globosus were evaluated for their DPPH radical scavenging and 15-lipoxygenase (15-LO) inhibitory activities. All tested rotenoids were found to inhibit 15-LO, while they lacked DPPH radical scavenging effect.
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Affiliation(s)
- Helle Wangensteen
- Division of Pharmacognosy, Department of Pharmaceutical Chemistry, School of Pharmacy, University of Oslo, P. O. Box 1068 Blindern, N 0316 Oslo, Norway.
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Abstract
Sarcolobus globosus is a medicinal plant growing in mangrove forests in Asia. No constituents from this plant have been reported previously. From the diethyl ether extract of S. globosus a new rotenoid sarcolobin and a new isoflavone sarcolobone, as well as the previously known rotenoids tephrosin, 12aalpha-hydroxydeguelin, 11-hydroxytephrosin, 12a-hydroxyrotenone, 12aalpha-hydroxyrotenone, 6aalpha,12aalpha-12a-hydroxyelliptone, 6a,12a-dehydrodeguelin, 13- homo-13-oxa-6a,12a-dehydrodeguelin, the isoflavone barbigerone and a chromone 6,7-dimethoxy-2,3-dihydrochromone were identified. 6,7-Dimethoxy-2,3-dihydrochromone has not previously been reported as a natural product.
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Affiliation(s)
- Helle Wangensteen
- Department of Pharmacognosy, School of Pharmacy, University of Oslo, Blindern, Oslo, Norway.
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