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Muhammad N, Avila F, Nedashkovskaya OI, Kim SG. Three novel marine species of the genus Reichenbachiella exhibiting degradation of complex polysaccharides. Front Microbiol 2023; 14:1265676. [PMID: 38156005 PMCID: PMC10752948 DOI: 10.3389/fmicb.2023.1265676] [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: 07/23/2023] [Accepted: 11/23/2023] [Indexed: 12/30/2023] Open
Abstract
Three novel strains designated ABR2-5T, BKB1-1T, and WSW4-B4T belonging to the genus Reichenbachiella of the phylum Bacteroidota were isolated from algae and mud samples collected in the West Sea, Korea. All three strains were enriched for genes encoding up to 216 carbohydrate-active enzymes (CAZymes), which participate in the degradation of agar, alginate, carrageenan, laminarin, and starch. The 16S rRNA sequence similarities among the three novel isolates were 94.0%-94.7%, and against all three existing species in the genus Reichenbachiella they were 93.6%-97.2%. The genome sizes of the strains ABR2-5T, BKB1-1T, and WSW4-B4T were 5.5, 4.4, and 5.0 Mb, respectively, and the GC content ranged from 41.1%-42.0%. The average nucleotide identity and the digital DNA-DNA hybridization values of each novel strain within the isolates and all existing species in the genus Reichenbachiella were in a range of 69.2%-75.5% and 17.7-18.9%, respectively, supporting the creation of three new species. The three novel strains exhibited a distinctive fatty acid profile characterized by elevated levels of iso-C15:0 (37.7%-47.4%) and C16:1 ω5c (14.4%-22.9%). Specifically, strain ABR2-5T displayed an additional higher proportion of C16:0 (13.0%). The polar lipids were phosphatidylethanolamine, unidentified lipids, aminolipids, and glycolipids. Menaquinone-7 was identified as the respiratory quinone of the isolates. A comparative genome analysis was performed using the KEGG, RAST, antiSMASH, CRISPRCasFinder, dbCAN, and dbCAN-PUL servers and CRISPRcasIdentifier software. The results revealed that the isolates harbored many key genes involved in central metabolism for the synthesis of essential amino acids and vitamins, hydrolytic enzymes, carotenoid pigments, and antimicrobial compounds. The KEGG analysis showed that the three isolates possessed a complete pathway of dissimilatory nitrate reduction to ammonium (DNRA), which is involved in the conservation of bioavailable nitrogen within the ecosystem. Moreover, all the strains possessed genes that participated in the metabolism of heavy metals, including arsenic, copper, cobalt, ferrous, and manganese. All three isolated strains contain the class 2 type II subtype C1 CRISPR-Cas system in their genomes. The distinguished phenotypic, chemotaxonomic, and genomic characteristics led us to propose that the three strains represent three novel species in the genus Reichenbachiella: R. ulvae sp. nov. (ABR2-5T = KCTC 82990T = JCM 35839T), R. agarivorans sp. nov. (BKB1-1T = KCTC 82964T = JCM 35840T), and R. carrageenanivorans sp. nov. (WSW4-B4T = KCTC 82706T = JCM 35841T).
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Affiliation(s)
- Neak Muhammad
- Biological Resource Center/Korean Collection for Type Cultures (KCTC), Korea Research Institute of Bioscience and Biotechnology, Daejeon, Republic of Korea
- Department of Environmental Biotechnology, KRIBB School of Biotechnology, University of Science and Technology (UST), Daejeon, Republic of Korea
| | - Forbes Avila
- Biological Resource Center/Korean Collection for Type Cultures (KCTC), Korea Research Institute of Bioscience and Biotechnology, Daejeon, Republic of Korea
- Department of Environmental Biotechnology, KRIBB School of Biotechnology, University of Science and Technology (UST), Daejeon, Republic of Korea
| | - Olga I. Nedashkovskaya
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry of the Far-Eastern Branch of the Russian Academy of Sciences, Vladivostok, Russia
| | - Song-Gun Kim
- Biological Resource Center/Korean Collection for Type Cultures (KCTC), Korea Research Institute of Bioscience and Biotechnology, Daejeon, Republic of Korea
- Department of Environmental Biotechnology, KRIBB School of Biotechnology, University of Science and Technology (UST), Daejeon, Republic of Korea
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Han HL, Nurcahyanto DA, Muhammad N, Lee YJ, Nguyen TTH, Kim SG, Chan SS, Khoo KS, Chew KW, Show PL, Tran TNT, Nguyen TDP, Chiu CY. Isolation of Spirosoma foliorum sp. nov. from the fallen leaf of Acer palmatum by a novel cultivation technique. Sci Rep 2023; 13:14684. [PMID: 37673882 PMCID: PMC10482864 DOI: 10.1038/s41598-023-35108-5] [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: 09/21/2022] [Accepted: 05/12/2023] [Indexed: 09/08/2023] Open
Abstract
In the effort of isolating novel microbial species, the strain PL0132T was isolated from a fallen leaf under fresh water at a stream, which glided when grown on a tap water medium (without nutrients). The strain was determined to be Gram-negative, strictly aerobic, and rod-shaped, which grew optimally at 25 °C, pH 6-7, and the strain tolerates 1% (w/v) NaCl concentration. The complete genome of strain PL0132T comprises one contig with a sequencing depth of 76×, consisting of 8,853,064 base pairs and the genomic DNA G + C content was 46.7% (genome). 16S rRNA gene sequence analysis revealed that strain PL0132T represents a member of the phylum Bacteroidetes and is affiliated with the genus Spirosoma. Based on genomic, phenotypic, and chemotaxonomic characteristics, the strain PL0132T represents a novel species of the genus Spirosoma, for which the name Spirosoma foliorum sp. nov. is proposed (= KCTC 72228 T = InaCC B1447T).
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Affiliation(s)
- Ho Le Han
- The University of Danang, University of Science and Technology, 54 Nguyen Luong Bang St., Danang, 550 000, Viet Nam
| | - Dian Alfian Nurcahyanto
- Research Center for Biosystematics and Evolution, Research Organization for Life Sciences and Environment, National Research and Innovation Agency (BRIN), Cibinong 16911, West Java, Indonesia
| | - Neak Muhammad
- Biological Resource Center/Korean Collection for Type Cultures (KCTC), Korea Research Institute of Bioscience and Biotechnology, 181 Ipsingil, Jeongeup, 56212, Jeonbuk, Korea
- University of Science and Technology (UST), 217 Gajeong-Ro, Yuseong, Daejeon, 34113, Korea
| | - Yong-Jae Lee
- Biological Resource Center/Korean Collection for Type Cultures (KCTC), Korea Research Institute of Bioscience and Biotechnology, 181 Ipsingil, Jeongeup, 56212, Jeonbuk, Korea
| | - Tra T H Nguyen
- Biological Resource Center/Korean Collection for Type Cultures (KCTC), Korea Research Institute of Bioscience and Biotechnology, 181 Ipsingil, Jeongeup, 56212, Jeonbuk, Korea
- University of Science and Technology (UST), 217 Gajeong-Ro, Yuseong, Daejeon, 34113, Korea
| | - Song-Gun Kim
- Biological Resource Center/Korean Collection for Type Cultures (KCTC), Korea Research Institute of Bioscience and Biotechnology, 181 Ipsingil, Jeongeup, 56212, Jeonbuk, Korea.
- University of Science and Technology (UST), 217 Gajeong-Ro, Yuseong, Daejeon, 34113, Korea.
| | - Sook Sin Chan
- Institut Sains Biologi, Fakulti Sains, Universiti Malaya, Kuala Lumpur, Malaysia
| | - Kuan Shiong Khoo
- Department of Chemical Engineering and Materials Science, Yuan Ze University, Taoyuan, Taiwan
- Centre for Herbal Pharmacology and Environmental Sustainability, Chettinad Hospital and Research Institute, Chettinad Academy of Research and Education, Kelambakkam, 603103, Tamil Nadu, India
| | - Kit Wayne Chew
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 62 Nanyang Drive, Singapore, 637459, Singapore
| | - Pau Loke Show
- Department of Chemical Engineering, Khalifa University, Shakhbout Bin Sultan St - Zone 1, Abu Dhabi, United Arab Emirates.
- Department of Chemical and Environmental Engineering, Faculty of Science and Engineering, University of Nottingham Malaysia, Jalan Broga, 43500, Semenyih, Selangor Darul Ehsan, Malaysia.
| | - Thi Ngoc Thu Tran
- The University of Da Nang, University of Technology and Education, Da Nang City, 550000, Viet Nam
| | - Thi Dong Phuong Nguyen
- The University of Da Nang, University of Technology and Education, Da Nang City, 550000, Viet Nam.
| | - Chen Yaw Chiu
- Biochemical Engineering Research Center, Ming Chi University of Technology, New Taipei City, 24301, Taiwan.
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Goldman RD, Hart RJ, Bone JN, Seiler M, Olson PG, Keitel K, Manzano S, Gualco G, Krupik D, Schroter S, Weigert RM, Chung S, Thompson GC, Muhammad N, Shah P, Gaucher NO, Hou M, Griffiths J, Lunoe MM, Evers M, Pharisa Rochat C, Nelson CE, Gal M, Baumer-Mouradian SH. Willingness to vaccinate children against COVID-19 declined during the pandemic. Vaccine 2023; 41:2495-2502. [PMID: 36889992 PMCID: PMC9977620 DOI: 10.1016/j.vaccine.2023.02.069] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 02/08/2023] [Accepted: 02/23/2023] [Indexed: 03/06/2023]
Abstract
OBJECTIVES To document the level of vaccine hesitancy in caregivers' of children younger than 12 years of age over the course of the pandemic in Pediatric Emergency Departments (ED). Study design Ongoing multicenter, cross-sectional survey of caregivers presenting to 19 pediatric EDs in the USA, Canada, Israel, and Switzerland during first months of the pandemic (phase1), when vaccines were approved for adults (phase2) and most recently when vaccines were approved for children (phase3). RESULTS Willingness to vaccinate rate declined over the study period (59.7%, 56.1% and 52.1% in the three phases). Caregivers who are fully vaccinated, who have higher education, and those worried their child had COVID-19 upon arrival to the ED, were more likely to plan to vaccinate in all three phases. Mothers were less likely to vaccinate early in the pandemic, but this hesitancy attenuated in later phases. Older caregivers were more willing to vaccinate, and caregivers of older children were less likely to vaccinate their children in phase 3. During the last phase, willingness to vaccinate was lowest in those who had a primary care provider but did not rely on their advice for medical decisions (34%). Those with no primary care provider and those who do and rely on their medical advice, had similar rates of willingness to vaccinate (55.1% and 52.1%, respectively). CONCLUSIONS COVID-19 vaccine hesitancy is widespread and growing over time, and public health measures should further try to leverage identified factors associated with hesitancy in order to enhance vaccination rates among children.
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Affiliation(s)
- R D Goldman
- The Pediatric Research in Emergency Therapeutics (PRETx) Program, Division of Emergency Medicine, Department of Pediatrics, University of British Columbia, and BC Children's Hospital Research Institute, Vancouver, British Columbia, Canada.
| | - R J Hart
- Division of Pediatric Emergency Medicine, Department of Pediatrics, University of Louisville, Louisville, KY, USA
| | - J N Bone
- Research Informatics, BC Children's Hospital Research Institute, Vancouver, British Columbia, Canada
| | - M Seiler
- Emergency Department, University Children's Hospital Zurich, Zurich, Switzerland
| | - P G Olson
- Department of Pediatrics, Division of Emergency and Transport Medicine, Children's Hospital Los Angeles, Los Angeles, CA, USA
| | - K Keitel
- Pediatric Emergency Medicine, Inselspital University Hospital of Bern, Bern, Switzerland
| | - S Manzano
- Department of Pediatric Emergency Medicine, Geneva Children's Hospital, Geneva University Hospitals, and Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - G Gualco
- Pediatric Emergency Department, Pediatric Institute of Italian part of Switzerland, Ticino, Switzerland
| | - D Krupik
- Pediatric Emergency Unit, Ziv Medical Center, and Azrieli Faculty of Medicine, Bar-Ilan University, Safed, Israel
| | - S Schroter
- Division of Pediatric Emergency Medicine, Department of Pediatrics, University of California, San Diego, La Jolla, California and Rady Children's Hospital San Diego, San Diego, CA, USA
| | - R M Weigert
- Department of Pediatric Emergency Medicine, Children's Minnesota, Minneapolis, MN, USA
| | - S Chung
- Pediatric Emergency Medicine, Oregon Health & Science University, Portland, OR, USA
| | - G C Thompson
- Pediatrics and Emergency Medicine, Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - N Muhammad
- Division of Pediatric Emergency Medicine, Advocate Children's Hospital, Oak Lawn, IL, USA
| | - P Shah
- Department of Pediatrics, Baylor College of Medicine and Texas Children's Hospital, Houston, Texas, USA
| | - N O Gaucher
- Department of Pediatric Emergency Medicine and Research Center, Department of Pediatrics, CHU Sainte-Justine, 3175 Ch Cote Sainte-Catherine, Montreal, Canada
| | - M Hou
- The Pediatric Research in Emergency Therapeutics (PRETx) Program, Division of Emergency Medicine, Department of Pediatrics, University of British Columbia, and BC Children's Hospital Research Institute, Vancouver, British Columbia, Canada
| | - J Griffiths
- The Pediatric Research in Emergency Therapeutics (PRETx) Program, Division of Emergency Medicine, Department of Pediatrics, University of British Columbia, and BC Children's Hospital Research Institute, Vancouver, British Columbia, Canada
| | - M M Lunoe
- Division of Pediatric Emergency Medicine, UPMC Children's Hospital of Pittsburgh, PA, USA
| | - M Evers
- Division of Pediatric Pediatric Emergency Medicine, UH Rainbow Babies and Children's Hospital, 11100 Euclid Ave, Cleveland, OH, USA
| | - C Pharisa Rochat
- Division of Pediatric Emergency Medicine, Department of Pediatrics, Fribourg Hospital HFR, Fribourg, Switzerland
| | - C E Nelson
- Division of Emergency Medicine, Nemours/Alfred I. duPont Hospital for Children, Wilmington, Wilmington, DE, USA
| | - M Gal
- Pediatric Emergency Department, Kaplan Medical Centre, Rehovot, Israel
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Le Han H, Jiang L, Thu Tran TN, Muhammad N, Kim SG, Tran Pham VP, Ng YJ, Khoo KS, Chew KW, Phuong Nguyen TD. Whole-genome analysis and secondary metabolites production of a new strain Brevibacillus halotolerans 7WMA2: A potential biocontrol agent against fungal pathogens. Chemosphere 2022; 307:136004. [PMID: 35970213 DOI: 10.1016/j.chemosphere.2022.136004] [Citation(s) in RCA: 6] [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] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 07/05/2022] [Accepted: 08/07/2022] [Indexed: 06/15/2023]
Abstract
The extensive usage of synthetic fungicides against fungal diseases has caused adverse impacts on both human and agricultural crops. Therefore, the current study aims to establish a new bacterium 7WMA2, as a biocontrol agent to achieve better antifungal results. The strain 7WMA2 was isolated from marine sediment, displayed a broad spectrum of several fungi that includes Alternaria alternata, Cladosporium sp., Candida albicans, Fusarium oxysporum, Trichosporon pullulans, and Trichophyton rubrum. The 16S rRNA phylogeny inferred that strain 7WMA2 was a member of Brevibacillus. The phylogenetic and biochemical analyses revealed that the strain 7WMA2 belongs to the species of Brevibacillus halotolerans. The complete genome sequence of Brevibacillus halotolerans 7WMA2 consists of a circular chromosome of 5,351,077 bp length with a GC content of 41.39 mol %, including 4433 CDS, 111 tRNA genes, and 36 rRNA genes. The genomic analysis showed 23 putative biosynthetic secondary metabolite gene clusters responsible for non-ribosomal peptides, polyketides and siderophores. The antifungal compounds concentrated from cell-free fermentation broth demonstrated strong inhibition of fungi, and the compounds are considerably thermal stable and adaptable to pH range 2-12. This complete genome sequence has provided insight for further exploration of antagonistic ability and its secondary metabolite compounds indicated feasibility as biological control agents against fungal infections.
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Affiliation(s)
- Ho Le Han
- Biological Resource Center/Korean Collection for Type Cultures (KCTC), Korea Research Institute of Bioscience and Biotechnology, Jeongeup, 56212, Republic of Korea; Scientific Management Department, Dong A University, Da Nang City, Viet Nam
| | - Lingmin Jiang
- Biological Resource Center/Korean Collection for Type Cultures (KCTC), Korea Research Institute of Bioscience and Biotechnology, Jeongeup, 56212, Republic of Korea
| | - Thi Ngoc Thu Tran
- The University of Danang, University of Technology and Education, Danang City 550000, Viet Nam
| | - Neak Muhammad
- Biological Resource Center/Korean Collection for Type Cultures (KCTC), Korea Research Institute of Bioscience and Biotechnology, Jeongeup, 56212, Republic of Korea; University of Science and Technology (UST), Daejeon, 34113, Republic of Korea
| | - Song-Gun Kim
- Biological Resource Center/Korean Collection for Type Cultures (KCTC), Korea Research Institute of Bioscience and Biotechnology, Jeongeup, 56212, Republic of Korea; University of Science and Technology (UST), Daejeon, 34113, Republic of Korea.
| | | | - Yan Jer Ng
- Department of Chemical and Environmental Engineering, Faculty of Science and Engineering, University of Nottingham Malaysia, Jalan Broga, 43500, Semenyih, Selangor Darul Ehsan, Malaysia
| | - Kuan Shiong Khoo
- Faculty of Applied Sciences, UCSI University, UCSI Heights, 56000 Cheras, Kuala Lumpur, Malaysia
| | - Kit Wayne Chew
- School of Energy and Chemical Engineering, Xiamen University Malaysia, Jalan Sunsuria, Bandar Sunsuria, 43900, Sepang, Selangor Darul Ehsan, Malaysia.
| | - Thi Dong Phuong Nguyen
- The University of Danang, University of Technology and Education, Danang City 550000, Viet Nam.
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Muhammad N, Nguyen TTH, Lee YJ, Ko J, Avila F, Kim SG. Vibrio ostreae sp. nov., a novel gut bacterium isolated from a Yellow Sea oyster. Int J Syst Evol Microbiol 2022; 72. [PMID: 36269578 DOI: 10.1099/ijsem.0.005586] [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] [Indexed: 06/16/2023] Open
Abstract
A Gram-stain-negative, oxidase- and catalase-positive, facultative anaerobic motile bacterium, designated strain OG9-811T, was isolated from the gut of an oyster collected in the Yellow Sea, Republic of Korea. The strain grew at 10-37 °C, pH 6.0-9.0 and with 0.5-10% (w/v) NaCl. Phylogenetic analysis based on the 16S rRNA gene sequences revealed that strain OG9-811T affiliated with the genus Vibrio, with the highest sequence similarity of 98.2% to Vibrio coralliilyticus ATCC BAA-450T followed by Vibrio variabilis R-40492T (98.0 %), Vibrio hepatarius LMG 20362T (97.7 %) and Vibrio neptunius LMG 20536T (97.6 %); other relatives were Vibrio tritonius JCM 16456T (97.4 %), Vibrio fluvialis NBRC 103150T (97.0 %) and Vibrio furnissii CIP 102972T (97.0 %). The complete genome of strain OG9-811T comprised two chromosomes of a total 4 807 684 bp and the G+C content was 50.2 %. Results of analysis based on the whole genome sequence showed the distinctiveness of strain OG9-811T. The average nucleotide identity (ANI) values between strain OG9-811T and the closest strains V. coralliilyticus ATCC BAA-450T, V. variabilis R-40492T, V. hepatarius LMG 20362T, V. neptunius KCTC 12702T , V. tritonius JCM 16456T, V. fluvialis ATCC 33809T and V. furnissi CIP 102972T were 73.0, 72.6, 73.3, 73.0, 72.7, 78.5 and 77.8 %, respectively, while the digital DNA-DNA hybridization values between strain OG9-811T and the above closely related strains were 20.8, 21.2, 20.8, 21.7, 20.7, 23.2 and 22.4 %, respectively. The major fatty acids of strain OG9-811T were summed feature 3 (C16:1 ω7c and/or C16:1 ω6c), summed feature 8 (C18:1 ω6c and/or C18:1 ω7c) and C16:0. The polar lipids contained phosphatidylethanolamine, phosphatidylglycerol and diphosphatidylglycerol. Strain OG9-811T contained Q-8 as a quinone. On the basis of polyphasic taxonomic characteristics, strain OG9-811T is considered to represent a novel species, for which the name Vibrio ostreae sp. nov. is proposed. The type strain is OG9-811T (=KCTC 72623T=GDMCC 1.2610T).
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Affiliation(s)
- Neak Muhammad
- Biological Resource Center/Korean Collection for Type Cultures (KCTC), Korea Research Institute of Bioscience and Biotechnology, Jeonbuk 56212, Republic of Korea
- University of Science and Technology (UST), Daejeon 34113, Republic of Korea
| | - Tra T H Nguyen
- Biological Resource Center/Korean Collection for Type Cultures (KCTC), Korea Research Institute of Bioscience and Biotechnology, Jeonbuk 56212, Republic of Korea
- University of Science and Technology (UST), Daejeon 34113, Republic of Korea
| | - Yong-Jae Lee
- Biological Resource Center/Korean Collection for Type Cultures (KCTC), Korea Research Institute of Bioscience and Biotechnology, Jeonbuk 56212, Republic of Korea
| | - Jaeho Ko
- Biological Resource Center/Korean Collection for Type Cultures (KCTC), Korea Research Institute of Bioscience and Biotechnology, Jeonbuk 56212, Republic of Korea
| | - Forbes Avila
- Biological Resource Center/Korean Collection for Type Cultures (KCTC), Korea Research Institute of Bioscience and Biotechnology, Jeonbuk 56212, Republic of Korea
- University of Science and Technology (UST), Daejeon 34113, Republic of Korea
| | - Song-Gun Kim
- Biological Resource Center/Korean Collection for Type Cultures (KCTC), Korea Research Institute of Bioscience and Biotechnology, Jeonbuk 56212, Republic of Korea
- University of Science and Technology (UST), Daejeon 34113, Republic of Korea
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Park SY, Muhammad N, Kim SG, Kwon H, Seo S, Kim JH. Streptococcus ruminicola sp. nov., new species of the Streptococcus bovis/Streptococcus equinus complex (SBSEC) isolated from the rumen of Korean domestic ruminants. Arch Microbiol 2022; 204:636. [PMID: 36127476 DOI: 10.1007/s00203-022-03255-4] [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: 08/11/2022] [Revised: 08/30/2022] [Accepted: 09/12/2022] [Indexed: 11/28/2022]
Abstract
A total of three Gram-positive, and oxidase and catalase-negative facultative anaerobic non-motile bacteria were isolated from the rumen fluid of cows and goats and these strains were designated CNU_G2T, CNU_77-61, and CNU_G3. They grew at 20-45 °C, pH 6.5-7, and 0-6.5% NaCl (w/v). The G + C contents (%) of the three isolates were 37.9, 37.8 and 37.8, respectively. Phylogenomic analysis indicated that these strains were distinct from other Streptococcus species. The average nucleotide identity between the isolates and the closest strain S. infantarius subsp. infantarius ATCC BAA-102T was 94.0-94.5%, while the digital DNA-DNA hybridization (dDDH) values between the isolates and the aforementioned related strain were 58.2-61.4%, respectively. Fatty acid analysis revealed higher proportions of C16:0 (> 28%) in all three isolates, while the proportion of C18:0 was higher in CNU_G2T (25.8%); however, it was less than 12% in all the representing strains used in the study. The C14:0 composition of strains CNU_77-61 (22.1%) and CNU_G3 (24.1%) was higher than that of type strains of CNU_G2T (8.1%). Based on the morphological, biochemical, and molecular phylogenetic features of the three novel isolates, they represent a novel species of the genus Streptococcus, for which we propose as Streptococcus ruminicola sp. nov. The type strain is CNU_G2T (= KCTC 43308T = GDMCC 1.2785T).
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Affiliation(s)
- Seon Young Park
- Division of Animal and Dairy Sciences, College of Agriculture and Life Science, Chungnam National University, Daejeon, 34134, Korea
| | - Neak Muhammad
- Biological Resource Center/Korean Collection for Type Cultures (KCTC), Korea Research Institute of Bioscience and Biotechnology, Jeonbuk, 56212, Korea.,University of Science and Technology (UST), Daejeon, 34113, Korea
| | - Song-Gun Kim
- Biological Resource Center/Korean Collection for Type Cultures (KCTC), Korea Research Institute of Bioscience and Biotechnology, Jeonbuk, 56212, Korea.,University of Science and Technology (UST), Daejeon, 34113, Korea
| | - Hyemin Kwon
- Infectious Disease Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, 34141, Korea.,Department of Microbiology and Molecular Biology, College of Bioscience and Biotechnology, Chungnam National University, Daejeon, 34134, Korea
| | - Seongwon Seo
- Division of Animal and Dairy Sciences, College of Agriculture and Life Science, Chungnam National University, Daejeon, 34134, Korea
| | - Ji Hyung Kim
- Department of Food Science and Biotechnology, College of Bio-Nano Technology, Gachon University, Seongnam, 13120, Korea.
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Pauzi A, Muhammad N, Abdullah N, Kamal N. Current authentication methods of herbs and herbal products: a systematic
review. Food Res 2022. [DOI: 10.26656/fr.2017.6(4).468] [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: 11/12/2022] Open
Abstract
The authentication of herbal species is of great concern for the quality control of herbal
products. Hence, many authentication methods have been developed for the accurate
identification of herbal species. This systematic review aimed to gather information and
provide evidence about the current authentication methods for several herbs and herbal
products. In this study, the methodological quality was also evaluated using the Preferred
Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement
checklist method. As a result, a total of seventeen articles were found to suit the inclusion
criteria of this study, which include molecular-based analysis, chemical fingerprinting, as
well as macroscopic and analogical analysis. All of these methods have different
approaches to the authentication of herbal-related products, and it also depends on the
specific needs. This review also asserts that the combination methods might be a useful
alternative for authentication purposes that produce better results. The multivariate
analysis combined with analytical methods could be a great combination due to its great
performance in authentication and suitability for routine screening.
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Muhammad N, Lembede BW, Erlwanger KH. Neonatal zingerone protects against the development of high-fructose diet-induced metabolic syndrome in adult Sprague-Dawley rats. J Dev Orig Health Dis 2021; 12:671-679. [PMID: 32500848 DOI: 10.1017/s2040174420000525] [Citation(s) in RCA: 4] [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] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
During the early postnatal period, dietary manipulations can alter the developmental trajectory of the growing offspring, causing beneficial or adverse health outcomes later in adult life. We investigated the potential preventive effects of neonatal zingerone intake on the development of fructose-induced metabolic derangements in rats.Four-day old male and female Sprague-Dawley rat pups (n = 79) were randomly grouped and administered: 10 ml/kg body weight (bwt) of distilled water (W), 10 ml/kg bwt 20% fructose solution (FS), 10 ml/kg bwt fructose solution + 40 mg/kg bwt of zingerone in distilled water (ZF) or 40 mg/kg bwt of zingerone in distilled water (ZW) pre-weaning. After weaning, W and ZW continued on unlimited tap water, while FS and ZF continued on unlimited fructose solution for 10 weeks. Body mass and food and fluid intake were evaluated, plasma was collected for metabolic assays and visceral fat was quantified.Food intake was decreased, fructose and overall caloric intake were increased due to fructose feeding in both sexes (P < 0.05). When compared with the controls, the high-fructose diet significantly raised the terminal body masses of females (P < 0.0001), concentrations of triglycerides, total cholesterol, LDL-c, TG:HDL-c ratio and visceral fat mass relative to bwt in both sexes (P < 0.05). Zingerone prevented (P < 0.05) the fructose-induced increase in body mass (females) and hypercholesterolemia (both sexes). Levels of HDL-c, glycaemic parameters and adiponectin were not affected by the interventions (P > 0.05). Sex-related differences were observed in food, fluid and caloric intake, terminal mass, cholesterol subtypes and visceral fat percentage (P < 0.05).Zingerone could be used strategically in the neonatal phase as a prophylatic management of high-fructose diet-induced metabolic syndrome.
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Affiliation(s)
- N Muhammad
- School of Physiology, Faculty of Health Sciences, University of Witwatersrand, Johannesburg, South Africa
- Department of Physiology, College of Health Sciences, Federal University Birnin Kebbi, Birnin Kebbi, Nigeria
| | - B W Lembede
- School of Physiology, Faculty of Health Sciences, University of Witwatersrand, Johannesburg, South Africa
| | - K H Erlwanger
- School of Physiology, Faculty of Health Sciences, University of Witwatersrand, Johannesburg, South Africa
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Mohamad Kahar E, Talip B, Mohd Fauzi N, Kamarulzaman S, Zakaria F, Muhammad N, Rajat Mamat T, Basri H. Properties and potential of agarwood hydrosol as a drink: a review. Food Res 2021. [DOI: 10.26656/fr.2017.5(3).382] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Agarwood is resinous valuable heartwood of Aquilaria tree resulting from self–defence
mechanism towards injuries or damages exerted on the tree. Agarwood essential oil is
usually extracted through a process of hydrodistillation or steam distillation which is
beneficial for commercial purposes such as perfumeries and cosmetics. Hydrosol, a byproduct of the process produced in abundance and underutilized particularly in the
agarwood industry. Hydrosol of agarwood is an aromatic compound that is believed to
have chemical properties similar to essential oils that consist of positive antioxidant
activity and positive biological activity for living cells. Several studies on properties of
hydrosol of agarwood show that it contained zero nutrient but varied with minerals in the
appropriate proportion that safe for human consumption. Thus, this review was aimed to
discuss the agarwood hydrosol processing methods, characteristics, antioxidants properties
and its comparisons to other plants hydrosol that have been commercially used as human
consumption as in flavoured and non-flavoured beverages
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10
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Salbi N, Muhammad N, Abdullah N. Optimizing flavonoid-rich Quranic Mixed Food (QMF) formulation with simplex-centroid mixture design. Food Res 2021. [DOI: 10.26656/fr.2017.5(2).470] [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: 11/12/2022] Open
Abstract
Quranic food, which defines as the food mentioned in the Holy Quran has gain attention
as a functional food to prevent disease in the current era. The food had high potential as an
excellent ingredient for the development of nutraceutical products. Flavonoid is one of the
phytochemicals in Quranic food that contribute to their therapeutic properties.
Unfortunately, there is less study on the health properties of Quranic food mixture that
lead to misunderstanding of the mixture of Quranic food. A paramount concern regarding
the addition of multiple bioactive ingredients into a product is the possibility of interaction
among elements may result in degradation of the ingredient, and the functionality could be
reduced or improved. Therefore, this study was aimed to optimize the flavonoid content of
Quranic Mixed Food (QMF) containing dates, raisins, pomegranates, figs, and honey.
Consequently, the special cubic model of simplex centroid design was employed as it was
the most reliable and can be utilized in the optimization process as the p-value was
significant, and the lack of fits was not substantial. The simplex centroid method had
successfully optimized the QMF formulation. To conclude, the optimized formulation of
flavonoid-rich QMF containing 42.88% raisins, 42.88% pomegranates, 13.97% honey,
0.17% dates, and 0.11% figs.
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11
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Sikandar A, Zaneb H, Nasir A, Adil M, Ali H, Muhammad N, Rehman T, Rehman A, Rehman H. Effects of Bacillus subtilis on performance, immune system and gut in Salmonella-challenged broilers. S AFR J ANIM SCI 2021. [DOI: 10.4314/sajas.v50i5.2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The goal of this study was to compare the effects of Bacillus subtilis and the antibiotic enrofloxacin on growth performance, immune response, intestinal histomorphometry and cecal Salmonella numbers in broilers challenged with S. gallinarum. Salmonella-free chicks (n = 240) were allocated to four groups, comprising six replicates (n = 10) each. Group NN was not infected and received no treatment. Group SN was infected with Salmonella and received no treatment. Group SE was infected with Salmonella and treated with the antibiotic enrofloxacin. Group SP was infected with Salmonella and treated orally with the probiotic B. subtilis. Initially the groups that were infected with Salmonella had reduced growth performance compared with NN. By the fourth week, SE and SP had recovered and weighed as much as or more than NN. The SP group had greater cellular immunity and relative weights of the bursa and thymus than the other groups. SN had the lowest villus height in all the segments of the small intestine and a larger Salmonella population in the ceca. Probiotic supplementation reduced the pathological outcomes more than enrofloxacin. Prophylactic use of B. subtilis-type probiotics had similar effects to the use of antibiotics, alleviated the stress related to infection of S. gallinarum, and improved the growth performance, immune function, and gut mucosal development in broilers.
Keywords: growth promoters, immunity, probiotics, poultry villi length
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Rashidi W, Muhammad N, Abdullah N, Talip B, Bahrin N. The antioxidant properties and α-amylase inhibition activities of polyphyto mixture with honey formulations. Food Res 2020. [DOI: 10.26656/fr.2017.4(6).260] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Ficus carica, Orthosiphon stamineus, Ficus deltoidea and Trigona honey are known for
their high antioxidant amount. In this research, these plants and honey were used to study
their interactions in terms of the antioxidant properties and the inhibition of α-amylase
enzyme. These plants samples were chosen as they are usually used in traditional
medicine to treat diabetes. Therefore, the objectives of this study are to measure the
antioxidant activity as well as the α-amylase enzyme inhibition properties of the
polyphyto formulations and Trigona honey. Simplex Centroid Mixture Design (SCMD)
was used to design the formulations. In this experiment, the highest (p<0.05) antioxidant
content for 2,2-diphenyl-1-picrylhydrazyl (DPPH) assay was a formulation of 100%
Trigona honey (90.09%). Meanwhile, a mixture of 50% F. carica – 50% O. stamineus and
50% O. stamineus – 50% Trigona honey yield the highest (p<0.05) total phenolic content
(TPC) value (133.77 and 133.17 μg/mL, respectively), which indicated a synergistic
interaction effect. However, for the measurement of ferric reduction antioxidant potential
(FRAP), the formulation of 100% O. stamineus and 100% F. deltoidea exhibits the
highest (p<0.05) value (148.95 and 148.78 μg/mL, respectively). In terms of enzyme
inhibition, F. deltoidea showed the highest inhibition activity for α-amylase (8.826%). In
conclusion, different percentages of F. carica, O. stamineus, F. deltoidea and Trigona
honey have different interaction effects on the antioxidant activity and α-amylase
inhibition depending on the amount of each factor.
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Rahim N, Muhammad N, Abdullah N, Talip B, Poh K. The interaction effect and optimal formulation of selected polyherbal extracts towards antioxidant activity. Food Res 2020. [DOI: 10.26656/fr.2017.4(6).281] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Past study showed that lemongrass (Cymbopogon citratus), curry leaves (Murrya
koenigii), turmeric (Curcuma longa) and ginger (Zingiber officinale) contain
phytochemicals associated with antioxidant properties. However, all the herbs are tested
individually and rarely mix together. This study was conducted to examine the antioxidant
properties and interaction effect when combined. The plants studied were decocted with
distilled water. Eighteen formulations of aqueous extracts were established using simplex
lattice mixture design that was generated by Design Expert software. The antioxidant
properties were analyzed by 2-diphenyl-2-picryl hydrazyl radical scavenging (DPPH),
ferric reducing antioxidant power (FRAP), total phenolic content (TPC) and total
flavonoid content (TFC) assays. The result showed that the mixture of lemongrass and
curry leaves extracts gave the highest reading in DPPH assay (91.14%), FRAP assay
(215.66 mM) and TFC (22.62 µg Rutin/mL). In the DPPH assay, the ratio of one to one
(1:1) mixture of lemongrass with other plants extracts showed antagonistic interaction.
There were five (5) formulations that showed synergistic interaction in all assays.
However, there were two (2) formulations that showed antagonistic interactions on both
DPPH and FRAP assays. No additive effect was observed in all formulations. The
suggested optimum formulation contains 53.7% lemongrass, 43.4% curry leaves, 2.9%
ginger and 0.0% turmeric. Most of the mixtures presented synergistic interactions. This
indicated the potential of plant extract mixtures to be developed into nutraceutical
products in the future by conducting in-vivo study.
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14
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Abdul Rahim R, Muhammad N. The Pursuit of Covid-19 Animal Models. imjm 2020. [DOI: 10.31436/imjm.v19i2.1610] [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: 11/07/2022]
Abstract
Coronavirus disease 2019 (COVID-19) is a contagious disease instigated by a recently discovered coronavirus, the 2019 novel coronavirus (2019-nCoV). It has infected over 14 million people worldwide from all age groups. This virus is conveyed through big droplets produced during coughing and sneezing by the infected individuals. COVID-19 precipitates acute respiratory distress syndrome which leads to morbidity and mortality in severe cases. To date, there is neither an established specific antiviral treatment for COVID-19, nor vaccine available. Preventive measure of social distancing is deemed to be the most effective way to avoid the spread of the virus. Scientists are currently in search of appropriate COVID-19 animal models for use in research works related to pathogenesis, potential drug treatments and vaccine development. This review delivers a pithy overview of the currently available COVID-19 animal models published in the literatures.
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Ali H, Abu Bakar M, Majid M, Muhammad N, Lim S. In vitro anti-diabetic activity of stingless bee honey from different botanical origins. Food Res 2020. [DOI: 10.26656/fr.2017.4(5).411] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
The number of patients with diabetes mellitus is increasing at an alarming rate and this
situation has triggered the interest of searching natural product as an alternative treatment.
Stingless bee honey containing a diverse array of bioactive compounds is commonly
utilized as a functional food and also found to possess various therapeutic effects
including anti-diabetic through α-amylase and α-glucosidase inhibition. However, the
composition level of bioactive compounds varying of geographical origins and botanical
sources of honey leads to different enzyme inhibition abilities. Therefore, this study
explored the total phenolic, total flavonoid, α-amylase and α-glucosidase inhibition
activities of stingless bee honey from various botanical origins. In this study, stingless bee
honey was collected from 6 different botanical origins namely, acacia, coconut, mangrove,
starfruit, multifruit and multiflower plant. Honey from tualang tree was used as a positive
control. Phenolic and flavonoid contents as well as α-amylase and α-glucosidase inhibition
activities of honey were studied spectrophotometrically. Stingless bee honey from
mangrove was found to have the highest phenolic content (141.74±0.03 mg GAE/100 g).
The honey collected from coconut origin showed the highest flavonoid content with the
value of 51.33±0.02 mg RE/100 g and also achieved the highest percentage inhibition
against α-glucosidase (68.33% at 100 µg/mL). Furthermore, tualang honey and honey
samples from mangrove, coconut and Acacia tree were found to have strong α-amylase
inhibition abilities as their inhibition percentages were more than 70.00% at 100 µg/mL.
This study showed that the presence of flavonoid and phenolic compounds in honey from
different botanical origins yielded different degree of α-amylase and α-glucosidase
inhibition and also recommended the uses of stingless bee honey in diabetes treatment.
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Zakaria F, Talip B, Kahar E, Muhammad N, Abdullah N, Basri H. Solvent used in extraction process of agarwood: a systematic review. Food Res 2020. [DOI: 10.26656/fr.2017.4(3).333] [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: 11/12/2022] Open
Abstract
The method of extraction of Agarwood is usually dependent on the purpose of the extract.
This systematic review aims to look at the number of studies that use different types of
solvents in the process of extraction. There are 3 types of solvents commonly used in the
extraction of agarwood essential oils namely methanol, ethanol and water. Each solvent
produces different extracts in terms of quantity and quality of the final product. However,
there is controversy over the use of solvents as it may cause a cytotoxic effect on the user.
Another common type of solvent is water. Although water is a cheap solvent and
relatively safe, aqueous extracts have more impurities that make isolating the desired
compound difficult. After the extraction process, the crude extract was fractionated into
the desired compounds and this technique is widely applied, especially in the whole
process of extraction of the agarwood. In conclusion, extraction solvents have certain
advantages and disadvantages, and this is one of the reasons why this extraction method
depends on the purpose of using the final product such as agarwood essential oil.
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Shah I, Al-Dabbagh B, Salem AE, Hamid SAA, Muhammad N, Naughton DP. A review of bioanalytical techniques for evaluation of cannabis (Marijuana, weed, Hashish) in human hair. BMC Chem 2019; 13:106. [PMID: 31428743 PMCID: PMC6694587 DOI: 10.1186/s13065-019-0627-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [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: 02/02/2019] [Accepted: 08/01/2019] [Indexed: 12/13/2022] Open
Abstract
Cannabis products (marijuana, weed, hashish) are among the most widely abused psychoactive drugs in the world, due to their euphorigenic and anxiolytic properties. Recently, hair analysis is of great interest in analytical, clinical, and forensic sciences due to its non-invasiveness, negligible risk of infection and tampering, facile storage, and a wider window of detection. Hair analysis is now widely accepted as evidence in courts around the world. Hair analysis is very feasible to complement saliva, blood tests, and urinalysis. In this review, we have focused on state of the art in hair analysis of cannabis with particular attention to hair sample preparation for cannabis analysis involving pulverization, extraction and screening techniques followed by confirmatory tests (e.g., GC–MS and LC–MS/MS). We have reviewed the literature for the past 10 years’ period with special emphasis on cannabis quantification using mass spectrometry. The pros and cons of all the published methods have also been discussed along with the prospective future of cannabis analysis.
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Affiliation(s)
- Iltaf Shah
- 1Department of Chemistry, College of Science, UAEU, Al Ain, Abu Dhabi, UAE
| | - Bayan Al-Dabbagh
- 1Department of Chemistry, College of Science, UAEU, Al Ain, Abu Dhabi, UAE
| | - Alaa Eldin Salem
- 1Department of Chemistry, College of Science, UAEU, Al Ain, Abu Dhabi, UAE
| | - Saber A A Hamid
- 1Department of Chemistry, College of Science, UAEU, Al Ain, Abu Dhabi, UAE
| | - Neak Muhammad
- 1Department of Chemistry, College of Science, UAEU, Al Ain, Abu Dhabi, UAE
| | - Declan P Naughton
- 2School of Life Sciences, Pharmacy and Chemistry, Kingston University, Surrey, UK
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Shah I, Al-Dabbagh B, Gariballa S, Al-Menhali A, Muhammad N, Yasin J, Ashraf SS. Application of a new vitamin D blood test on the Emirati population. J Steroid Biochem Mol Biol 2018; 180:118-128. [PMID: 29432962 DOI: 10.1016/j.jsbmb.2018.02.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [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: 10/30/2017] [Revised: 01/30/2018] [Accepted: 02/01/2018] [Indexed: 12/11/2022]
Abstract
Research shows that immunoassay techniques are not the best choice for the estimation of vitamin D in human blood samples. The main reasons are that some immunoassays are not able to distinguish between 25-OHD3 and 25-OHD2 vitamin D metabolites. Furthermore, immunoassays cannot differentiate between 25OHD and inactive epimers of vitamin D. Vitamin D epimers and isobars have been known to overlap with the 25OHD signals and give false positives when tested. Liquid chromatography tandem-mass spectrometry (LC-MS/MS) can differentiate between 25OHD3 and 25OHD2. Separating epimers and isobars (which have the same molecular weight) from vitamin D is achieved through chromatographic separation from actual 25OHD peaks, although this could also cause inaccuracies in vitamin D measurements. The main aim of this study was to develop and validate an improved LC-MS/MS method (using a Shimadzu 8060 system) that could accurately detect and quantitate up to 10 different metabolites of vitamin D, as well as differentiate the epimers and isobars. The secondary aim was to apply the developed LC-MS/MS method for the accurate measurement of blood vitamin D levels in the Emirati population. The Shimadzu 8060 system was run using positive ion electrospray ionization (ESI) in Dynamic Multiple Reaction Monitoring (DMRM) mode for quantification. The method involved blood sample collection from 80 Emirati volunteers, followed by serum extraction and liquid-liquid extraction. The chromatography column used for the analysis was an Ascentis Express F5. Precursor and product ions were detected using a Shimadzu 8060 LC-MS/MS system, and 10 metabolites of vitamin D were detected and quantified, including epimers and isobars. The method validation showed good sensitivity, recovery, linearity, precision, specificity, and accuracy. Furthermore, the data showed that vitamin D epimer 3-epi-25OHD and isobar 7-α-hydroxy-4-cholesten-3-one (7αC4) accounted for a significant portion of vitamin D results in the Emirati population. We report a more reliable, reproducible, and robust LC-MS/MS method for the accurate detection of 25OHD (vitamin D) in the Emirati population. The method has the capacity to detect and separate 10 metabolites of vitamin D as well as separate 25OHD from co-eluting epimers and isobars. The method has also been successfully implemented in gauging vitamin D deficiency in the Emirati population. Thus, this improved LC-MS/MS method could prove very useful in accurately estimating the levels of vitamin D in the Emirati population and in further clinical studies.
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Affiliation(s)
- Iltaf Shah
- Department of Chemistry, College of Science, United Arab Emirates University, United Arab Emirates.
| | - Bayan Al-Dabbagh
- Department of Chemistry, College of Science, United Arab Emirates University, United Arab Emirates
| | - Salah Gariballa
- Department of Chemistry, College of Science, United Arab Emirates University, United Arab Emirates; Internal Medicine, Faculty of Medicine & Health Sciences, United Arab Emirates University (UAEU)
| | - Asma Al-Menhali
- Department of Chemistry, College of Science, United Arab Emirates University, United Arab Emirates
| | - Neak Muhammad
- Department of Chemistry, College of Science, United Arab Emirates University, United Arab Emirates
| | - Javed Yasin
- Department of Chemistry, College of Science, United Arab Emirates University, United Arab Emirates; Internal Medicine, Faculty of Medicine & Health Sciences, United Arab Emirates University (UAEU)
| | - S Salman Ashraf
- Department of Chemistry, College of Science, United Arab Emirates University, United Arab Emirates
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Muhammad N, Wadood SF, Khan W, Ali N, Nisar M. ntra-species profiling of Cleome viscosa growing in Swat district (Pakistan). Biosys divers 2018. [DOI: 10.15421/011808] [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: 11/05/2022] Open
Abstract
Intra-specific genetic variation was studied in 28 genotypes of Cleome viscosa L. growing in Swat district, Khyber Pakhtunkhwa, Pakistan. It was found that genotypes showed the utmost allelic variation for leaf upper and lower surface with emerald green (75%), and yellow green (75%) respectively, other leaves lower and upper surfaces were (25%) green and yellow green (26%) respectively. The majority of C. viscosa genotypes were (50%) yellow flowers while others were with (29%) white yellow colour and (21%) dull yellow. Most of the seeds were with black (46%). The protein profiling was carried out on 12% gel electrophoresis; seven reproducible bands with molecular weight ranges from 180 to 10 KDa were detected in C. viscosa, the locus contribution toward genetic disagreement (LCTGD) of C. viscosa was 57%. Notably, L-3, L-4 L-5, was monomorphic in C. viscosa and was treated as species specific. L-1, L-2, L-7 were polymorphic. These bands showed 79%, 4%, 14% and 79% variation respectively. In the current investigation the intra-specific variation was observed limited and alone SDS-PAGE did not determine the high level of intra-specific variation; however, diverse germplasm were suggested to be acquired from various sources.
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Ali N, Mohamad M, Juahir H, Kamarudin M, Muhammad N, Lee M. Source apportionment of social support and quality of life index among drug abuse inmates using multiple linear regression. J Fundam and Appl Sci 2018. [DOI: 10.4314/jfas.v9i2s.4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Abstract
UNLABELLED Settings and Aim: The World Health Organization launched in 1999 an initiative to eliminate the global avoidable blindness and prevent the projected doubling of avoidable visual impairment between 1990 and 2020 (Vision 2020: The Right to Sight). The World Health Assembly (WHA) adopted resolutions WHA 59.25, WHA 56.26 urging member states to adopt the Vision 2020 principles. More than 90 nongovernmental development organizations, agencies, and institutions, together with a number of major corporations, are now working together in this global partnership. Two neighboring states in North Western Nigeria provide eye care services using different approaches; one state uses the principles of Vision 2020, the other uses a different strategy. The aim of the study was to assess awareness and utilization of eye care services in two Nigerian states. DESIGN A population-based cross-sectional interview of households was conducted in two neighboring states using a structured questionnaire. Data analysis was performed using SPSS version 21 and a P < 0.05 was considered as significant. FINDINGS Participation rate was 97% in the two states. The population in the Vision 2020-compliant state were significantly more aware about general eye care services (80% vs. 44%, P < 0.0005); had less proportion of households unaware of any eye care service (55% vs. 69%, P < 0.0005); and have a significantly higher felt the need to utilize eye care services (47% vs. 5.9%, P < 0.0005). The service utilization rate was however low in the two states. CONCLUSION The principles of Vision 2020: The Right to Sight is adaptable to different cultures/societies and has demonstrated a potential to increase awareness and a felt need for eye care in poor resource settings.
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Affiliation(s)
- N Muhammad
- Department of Surgery, Ophthalmology Unit, Usmanu Danfodiyo University, Sokoto, Nigeria
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Cybulski C, Kluźniak W, Huzarski T, Wokołorczyk D, Kashyap A, Jakubowska A, Szwiec M, Byrski T, Dębniak T, Górski B, Sopik V, Akbari MR, Sun P, Gronwald J, Narod SA, Lubiński J, Dębniak T, Dymerska D, Kurzawski G, Lubiński J, Dymerska D, Tutlewska K, Kuswik M, Rudnicka H, Scott RJ, Billings R, Pławski A, Lubinski J, Kurzawski G, Gromowski T, Kąklewski K, Marciniak W, Durda K, Lener M, Sukiennicki G, Kaczmarek K, Jaworska-Bieniek K, Paszkowska-Szczur K, Waloszczyk P, Lubiński J, Dębniak T, Gronwald J, Hemminki K, Försti A, Huzarski T, Gronwald J, Cybulski C, Oszurek O, Szwiec M, Gugała K, Stawicka M, Morawiec Z, Mierzwa T, Falco M, Janiszewska H, Kilar E, Marczyk E, Kozak-Klonowska B, Siołek M, Surdyka D, Wiśniowski R, Posmyk M, Domagała P, Byrski T, Sun P, Lubiński J, Narod SA, Imyanitov EN, Kaczmarek K, Muszyńska M, Marciniak W, Sukiennicki G, Lener M, Durda K, Jaworska-Bieniek K, Gromowski T, Prajzendanc K, Peruga N, Huzarski T, Byrski T, Gronwald J, Cybulski C, Dębniak T, Morawski A, Jakubowska A, Lubiński J, Lener MR, Scott RJ, Kluźniak W, Gronwald J, Baszuk P, Cybulski C, Wiechowska-Kozłowska A, Huzarski T, Kładny J, Pietrzak S, Soluch A, Jakubowska A, Lubiński J, Plawski A, Prajzendanc K, Jakubowska A, Lubiński J, Rashid UR, Naeemi H, Muhammad N, Lubiński J, Jakubowska A, Loya A, Yusuf MA, Savanevich A, Aszurek O, Gronwald J, Lubiński J, Mathe A, Wong-Brown M, Locke W, Stirzaker C, Braye SG, Forbes JF, Clark S, Avery-Kiejda K, Scott RJ, Tomiczek-Szwiec J, Huzarski T, Szwiec M, Gronwald J, Cybulski C, Marczyk E, Jakubowicz J, Kilar E, Sibilski R, Stawicka M, Morawiec Z, Mierzwa T, Falco M, Janiszewska H, Kozak-Klonowska B, Siołek M, Surdyka D, Wiśniowski R, Posmyk R, Domagała P, Lubiński J, Szwiec M, Tomiczek-Szwiec J, Huzarski T, Cybulski C, Lubiński J. Meeting abstracts from the Annual Conference on Hereditary Cancers 2016. Hered Cancer Clin Pract 2017. [PMCID: PMC5731602 DOI: 10.1186/s13053-017-0081-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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23
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Khan S, Ansar M, Khan AK, Shah K, Muhammad N, Shahzad S, Nickerson DA, Bamshad MJ, Santos-Cortez RLP, Leal SM, Ahmad W. A homozygous missense mutation in SLC25A16 associated with autosomal recessive isolated fingernail dysplasia in a Pakistani family. Br J Dermatol 2017; 178:556-558. [PMID: 28504827 DOI: 10.1111/bjd.15661] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- S Khan
- Department of Biotechnology and Genetic Engineering, Kohat University of Science and Technology, Kohat, Khyber Pakhtunkhwa, Pakistan.,Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
| | - M Ansar
- Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
| | - A K Khan
- Department of Biotechnology and Genetic Engineering, Kohat University of Science and Technology, Kohat, Khyber Pakhtunkhwa, Pakistan
| | - K Shah
- Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
| | - N Muhammad
- Department of Biotechnology and Genetic Engineering, Kohat University of Science and Technology, Kohat, Khyber Pakhtunkhwa, Pakistan
| | - S Shahzad
- Department of Biotechnology & Bioinformatics, International Islamic University, Islamabad, Pakistan
| | - D A Nickerson
- Department of Genome Sciences, University of Washington, Seattle, WA, U.S.A
| | - M J Bamshad
- Department of Genome Sciences, University of Washington, Seattle, WA, U.S.A.,Department of Pediatrics, University of Washington, Seattle, WA, U.S.A
| | - R L P Santos-Cortez
- Center for Statistical Genetics, Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, U.S.A.,Department of Otolaryngology, University of Colorado School of Medicine, Aurora, CO, U.S.A
| | - S M Leal
- Center for Statistical Genetics, Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, U.S.A
| | - W Ahmad
- Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
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Bauml J, Mick R, Ciunci C, Aggarwal C, Evans T, Miller L, Muhammad N, Alley E, Knepley C, Mutale F, Cohen R, Langer C. OA 17.08 Phase II Study of Pembrolizumab for Oligometastatic Non-Small Cell Lung Cancer (NSCLC) Following Completion of Locally Ablative Therapy (LAT). J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.433] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Khan S, Muhammad N, Khan M, Kamal A, Rehman Z, Khan S. Genetics of human Bardet-Biedl syndrome, an updates. Clin Genet 2016; 90:3-15. [DOI: 10.1111/cge.12737] [Citation(s) in RCA: 98] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2015] [Revised: 12/21/2015] [Accepted: 01/03/2016] [Indexed: 12/22/2022]
Affiliation(s)
- S.A. Khan
- Department of Biotechnology and Genetic Engineering; Kohat University of Science and Technology; Khyber Pakhtunkhwa Pakistan
| | - N. Muhammad
- Department of Biotechnology and Genetic Engineering; Kohat University of Science and Technology; Khyber Pakhtunkhwa Pakistan
| | - M.A. Khan
- Gomal Centre of Biochemistry and Biotechnology; Gomal University; Khyber Pakhtunkhwa Pakistan
- Genomic Core Facility; Interim Translational Research Institute; Doha Qatar
| | - A. Kamal
- Department of Biotechnology and Genetic Engineering; Kohat University of Science and Technology; Khyber Pakhtunkhwa Pakistan
| | - Z.U. Rehman
- Department of Biotechnology and Genetic Engineering; Kohat University of Science and Technology; Khyber Pakhtunkhwa Pakistan
| | - S. Khan
- Department of Biotechnology and Genetic Engineering; Kohat University of Science and Technology; Khyber Pakhtunkhwa Pakistan
- Genomic Core Facility; Interim Translational Research Institute; Doha Qatar
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Rahman Y, Muhammad N. Obstruction or obstructive-are we causing more harm than good? Audit the use of the abdominal Xray (AXR) in patients presenting with an acute abdomen. Int J Surg 2015. [DOI: 10.1016/j.ijsu.2015.07.496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Khan S, Basit S, Habib R, Kamal A, Muhammad N, Ahmad W. Genetics of human isolated hereditary nail disorders. Br J Dermatol 2015; 173:922-9. [PMID: 26149975 DOI: 10.1111/bjd.14023] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/02/2015] [Indexed: 12/17/2022]
Abstract
Human hereditary nail disorders constitute a rare and heterogeneous group of ectodermal dysplasias. They occur as isolated and/or syndromic ectodermal conditions where other ectodermal appendages are also involved, and can occur associated with skeletal dysplasia. 'Nail disorder, nonsyndromic congenital' (OMIM; Online Mendelian Inheritance in Man) is subclassified into 10 different types. The underlying genes identified thus far are expressed in the nail bed and play important roles in nail development and morphogenesis. Here, we review the current literature on nail disorders and present a coherent review on the genetics of nail disorders. This review will pave the way to identifying putative genes and pathways involved in nail development and morphogenesis.
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Affiliation(s)
- S Khan
- Department of Biotechnology and Genetic Engineering, Kohat University of Science and Technology (KUST), Kohat 26000, Khyber Pakhtunkhwa, Pakistan.,Genomic Core Facility, interim Translational Research Institute (iTRI), Academic Health System, Hamad Medical Corporation, 3050 Doha, Qatar
| | - S Basit
- Center for Genetics and Inherited Diseases, Taibah University Almadinah Almunawarah, 30001 Almadinah Almunawarah, Saudi Arabia
| | - R Habib
- Department of Biosciences, COMSATS Institute of Information Technology, Park Road, Islamabad, 45600, Pakistan
| | - A Kamal
- Department of Biotechnology and Genetic Engineering, Kohat University of Science and Technology (KUST), Kohat 26000, Khyber Pakhtunkhwa, Pakistan
| | - N Muhammad
- Department of Biotechnology and Genetic Engineering, Kohat University of Science and Technology (KUST), Kohat 26000, Khyber Pakhtunkhwa, Pakistan
| | - W Ahmad
- Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan
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Muhammad N, Murakami T, Inoshima Y, Ishiguro N. Long-term kinetics of AA amyloidosis and effects of inflammatory restimulation after disappearance of amyloid depositions in mice. Clin Exp Immunol 2015; 181:133-41. [PMID: 25736960 DOI: 10.1111/cei.12615] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/22/2015] [Indexed: 12/29/2022] Open
Abstract
Amyloid A (AA) amyloidosis is characterized by extracellular pathogenic deposition of insoluble fibril protein in various body organs. Deposited amyloid generally remains in a variety of organs for long periods, but its disappearance has been reported after the precursor protein is diminished. The kinetics of AA deposition are not completely understood and, in particular, the roles of cells and cytokines in the deposition and clearance of amyloid remain unclear. In this study, we investigated the disappearance of amyloid depositions in mice over a 1-year period. AA amyloidosis was induced experimentally in mice by injecting amyloid-enhancing factor (AEF) and silver nitrate. Mice were killed at different time-points to examine the occurrence and disappearance of amyloid depositions. Maximum levels of amyloid depositions were observed at 20 days after inoculation. Clearance of amyloid depositions was observed from the 40th day onwards, with only minute traces of amyloid present by 240 days. A second inflammatory stimulus consisting of AEF and silver nitrate was given at 330 or 430 days, after amyloid depositions had disappeared almost completely. After that, serum amyloid A was overproduced and redeposition of amyloid was observed, indicating that all mice were primed for aggressive amyloid depositions. After administration of the inflammatory stimuli, the proinflammatory environment was found to have increased levels of interleukin (IL)-6, while anti-inflammatory conditions were established by IL-10 as regression of amyloid deposition occurred. These results suggest that the proinflammatory and anti-inflammatory status have key roles in both amyloid deposition and clearance.
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Affiliation(s)
- N Muhammad
- United Graduate School of Veterinary Sciences, Laboratory of Food and Environmental Hygiene, Department of Veterinary Medicine, Gifu University, Gifu, Japan
| | - T Murakami
- United Graduate School of Veterinary Sciences, Laboratory of Food and Environmental Hygiene, Department of Veterinary Medicine, Gifu University, Gifu, Japan.,Department of Veterinary Medicine, Tokyo University of Agriculture and Technology, Tokyo, Japan
| | - Y Inoshima
- United Graduate School of Veterinary Sciences, Laboratory of Food and Environmental Hygiene, Department of Veterinary Medicine, Gifu University, Gifu, Japan
| | - N Ishiguro
- United Graduate School of Veterinary Sciences, Laboratory of Food and Environmental Hygiene, Department of Veterinary Medicine, Gifu University, Gifu, Japan
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Rashid MU, Muhammad N, Iqbal K, Yusuf HA, Hamann U. BRCA1 genetic testing in a Pakistani breast-ovarian cancer family with multiple consanguineous marriages. Clin Genet 2014; 88:198-9. [PMID: 25430881 DOI: 10.1111/cge.12533] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2014] [Revised: 10/28/2014] [Accepted: 10/28/2014] [Indexed: 11/26/2022]
Affiliation(s)
- M U Rashid
- Shaukat Khanum Memorial Cancer Hospital and Research Centre (SKMCH & RC), Lahore, Pakistan
- Molecular Genetics of Breast Cancer, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 580, 69120, Heidelberg, Germany
| | - N Muhammad
- Shaukat Khanum Memorial Cancer Hospital and Research Centre (SKMCH & RC), Lahore, Pakistan
| | - K Iqbal
- Shaukat Khanum Memorial Cancer Hospital and Research Centre (SKMCH & RC), Lahore, Pakistan
| | - H A Yusuf
- Shaukat Khanum Memorial Cancer Hospital and Research Centre (SKMCH & RC), Lahore, Pakistan
- University of Manchester Medical School, Manchester, UK
| | - U Hamann
- Molecular Genetics of Breast Cancer, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 580, 69120, Heidelberg, Germany
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Economopoulos K, Van Der Wilden G, Teshager A, Hakimian S, Muhammad N, Tantillo T, Mohamed M, Gul S, Hamarneh S, Karas A, Tao Q, Morrison S, Malo M, Fagenholz P, Hodin R. Perioperative Fasting Reduces Intestinal Alkaline Phosphatase in Humans. J Surg Res 2014. [DOI: 10.1016/j.jss.2013.11.117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Muhammad N, Mohammed A, Isiyaku S, Adamu MD, Gwom A, Rabiu MM. Mapping trachoma in 25 local government areas of Sokoto and Kebbi states, northwestern Nigeria. Br J Ophthalmol 2013; 98:432-7. [PMID: 24344228 DOI: 10.1136/bjophthalmol-2013-303703] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
INTRODUCTION The WHO global initiative on elimination of trachoma by 2020 (GET 2020) recommends mapping of trachoma at district (Local Government Area (LGA)) levels to enable planning and control activities in affected communities worldwide. The aim of the present study was to provide baseline data on trachoma for the LGAs of Sokoto and Kebbi states, Nigeria. METHODS A population-based cross-sectional survey was conducted in 25 LGAs between November 2011 and May 2012. The WHO guidelines for trachoma control and risk factor assessment were used in the planning and conduct of the survey. RESULTS The prevalence of trachomatous inflammation-follicular in children aged 1-9 years ranged from 0.3% in Sokoto South to 15.6% in Kalgo LGA. The prevalence of trachomatous trichiasis (TT) in adults (>14 years) ranged from 0.03% in three LGAs to 0.6% in Gudu LGA. Logistic regression analysis for the trachoma risk factors after χ(2) analysis showed only distance from water source as a significant risk factor (OR>1, p<0.5). Clean face, access to latrines and knowledge of trachoma prevention were significantly protective (OR<1, p<0.5) against active disease. The average number of persons in need of TT lid surgery ranged from 0 in 3 LGAs to 397 in Danko-Wasagu LGA. Mass antibiotic distribution is needed in 4 LGAs. The estimated number of households in need of latrines and improved water sources are high, with 1 LGA requiring 34 500 latrines and 20 000 improved water sources. CONCLUSIONS There is a burden of active trachoma of different endemicity levels in all the surveyed LGAs. The burden of trachoma risk factors remains a challenge despite the global effort to decrease the risk factors through the Millennium Development Goals.
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Affiliation(s)
- N Muhammad
- Ophthalmology Unit, Surgery Department, Usmanu Danfodiyo University, , Sokoto, Nigeria
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Muhammad N, Saeed M, Gilani SN. Analgesic and Anti-inflammatory Profile of n-Hexane Fraction of <i>Viola betonicifolia</i>. TROP J PHARM RES 2013. [DOI: 10.4314/tjpr.v11i6.13] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Mohamed M, Hamarneh S, Patel P, Malo N, Kalliannan K, Teshager A, Raychowdhury A, Moss A, Muhammad N, Abtahi S, Moaven O, Alam S, Economopoulos K, Malo M, Hodin R. Intestinal Alkaline Phosphatase is an Endogenous Anti-Inflammatory Factor. J Surg Res 2013. [DOI: 10.1016/j.jss.2012.10.593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Hamarneh S, Kalliannan K, Mohamed M, Teshager A, Patel P, Malo N, Abtahi S, Muhammad N, Moaven O, Raychowdhury A, Alam S, Economopoulos K, Bhan A, Malo M, Hodin R. Intestinal Alkaline Phosphatase Prevents Acute Alcohol-Induced Liver Injury. J Surg Res 2013. [DOI: 10.1016/j.jss.2012.10.427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Khan H, Khan MA, Tariq SA, Saeed M, Muhammad N, Gul F, Inayat H. Analysis of Metal Content of Samples of Gloriosa Superba L (Colchicaceae) Collected from Two Different Locations in Pakistan. TROP J PHARM RES 2012. [DOI: 10.4314/tjpr.v11i4.14] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Haque N, Bari MS, Hossain MA, Muhammad N, Ahmed S, Rahman A, Hoque SM, Islam A. An overview of Brucellosis. Mymensingh Med J 2011; 20:742-747. [PMID: 22081201] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Brucellosis is the most important zoonotic disease caused by Brucella species comprising Gram negative, facultative, intracellular pathogens. The true incidence of human brucellosis is unknown for most countries of the world including Bangladesh. But brucellosis is not uncommon in our country. Due to its increasing incidence in many countries of the world it is an important issue now days. Domestic animals such as cattle, goats, sheep, pigs, camel, buffalo and dogs serve as a reservoir hosts. Transmission of brucellosis to humans occurs through the consumption of infected, unpasteurized animal milk and milk products, through direct contact with infected animal parts, through ruptures of skin and mucous membranes and through the inhalation of infected aerosolized particles. Due to variability of clinical features and limited availability of laboratory facilities, the disease remains largely under-reported. Early and specific diagnosis is important to ensure a favourable outcome regarding this zoonotic disease.
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Affiliation(s)
- N Haque
- Department of Microbiology, Mymensingh Medical College, Mymensingh, Bangladesh. naziacb4@ gmail.com
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Rashid M, Bajwa S, Muhammad N, Gull S, Faisal S, Amin A, Loya A, Hamann U. 3528 POSTER Prevalence of BRCA1 and BRCA2 Germline Mutations Among Pakistani Patients With Triple Negative Breast Cancer. Eur J Cancer 2011. [DOI: 10.1016/s0959-8049(11)71184-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Shuid A, Siang L, Chin T, Muhammad N, Mohamed N, Soelaiman I. Acute and Subacute Toxicity Studies of Eurycoma longifolia in Male Rats. INT J PHARMACOL 2011. [DOI: 10.3923/ijp.2011.641.646] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Basit S, Wali A, Aziz A, Muhammad N, Jelani M, Ahmad W. Digenic inheritance of an autosomal recessive hypotrichosis in two consanguineous pedigrees. Clin Genet 2011; 79:273-81. [PMID: 20528890 DOI: 10.1111/j.1399-0004.2010.01455.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Hypotrichosis is a human hereditary hair loss disorder in which affected individuals show sparse to complete absence of hair on scalp and/or on different body parts. To date, at least eight isolated autosomal recessive and dominant forms of hypotrichosis loci have been mapped on different human chromosomes, and the corresponding genes have been identified. Detailed clinical and molecular studies were undertaken of the hereditary hypotrichosis observed in the two consanguineous families (A and B) presented here. Human genome scan, using >500 highly polymorphic microsatellite markers, identified equal evidence of linkage of the hypotrichosis phenotype on chromosomes 12q21.2-q22 and 16q21-q23.1 in both the families. The novel hypotrichosis locus on chromosome 12q21.2-q22 spans 16.3 cM (17.62 Mb), flanked by markers D12S326 and D12S101. At this locus, maximum multipoint logarithm of the odds ratio (LOD) scores of 3.68 and 3.31 were obtained in families A and B, respectively. The second hypotrichosis locus on chromosome 16q21-q23.1, identified in the two families, spans 5.58 cM (8.28 Mb) and is flanked by markers D16S3031 and D16S512. Maximum multipoint LOD scores of 3.17 and 3.31 were obtained with markers mapped at this locus in families A and B, respectively. DNA sequence analysis of six candidate genes (PLEKHG7, SLC6A15, VEZT, DUSP6, KERA and KITLG), located in the linkage interval on chromosome 12q21.2-q22, failed to detect potential sequence variants in the affected individuals of the two families. However, DNA sequence analysis of CDH3 gene, located on chromosome 16q21-q23.1, detected a single base pair homozygous insertion (c.1024_1025insG and p.342insGfsX345) in exon 9 in family A and deletion of four base pair (c.1859_1862delCTCT and p.620delSfsX629) in exon 13 in family B. We described for the first time digenic inheritance of an autosomal recessive hypotrichosis phenotype in two unlinked loci on chromosomes 12q21.2-q22 and 16q21-q23.1 in two unrelated consanguineous Pakistani families.
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Affiliation(s)
- S Basit
- Department of Biochemistry, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
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Muhammad N, Hossain MA, Musa AK, Mahmud MC, Paul SK, Rahman MA, Haque N, Islam MT, Parvin US, Khan SI, Nasreen SA, Mahmud NU. Seroprevalence of human brucellosis among the population at risk in rural area. Mymensingh Med J 2010; 19:1-4. [PMID: 20046163] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
This study was performed to evaluate the seroprevalence of brucellosis among the risk group of population. A cross sectional study was carried out in the Department of Microbiology, Mymensingh Medical College in collaboration with the Department of Medicine under the Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh, between the period from July 2007 to June 2008. A total of 210 samples were included in this study from risk group of population. A variety of serological tests have been applied for detection of antibodies against Brucella spp. Among the 210 subjects from risk group of population, 9(4.28%), 7(3.33%) and 7(3.33%) were positive for brucellosis by slide agglutination test, rose bengal plate agglutination test (RBPA) and standard tube agglutination test (STAT) respectively. Out of total specimen 10 positive and 29 negative serum as detected by slide agglutination, rose bengal plate agglutination test (RBPT) and STAT were also examined by Enzyme linked immunosorbent assay (ELISA) for detection of IgG. Among them, 10 were positive by ELISA IgG. Seroprevalence among occupational groups were 11.11% in veterinary personnel, 6.45% in dairy workers and 4.67% in animal farmers. This study indicated that brucellosis is not uncommon at rural area of Mymensingh region in Bangladesh. It was suggested to conduct community survey and to plan properly the measures of control and prevention.
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Affiliation(s)
- N Muhammad
- Department of Microbiology, Mymensingh Medical College, Mymensingh, Bangladesh
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Parvin US, Hossain MA, Musa AK, Mahamud C, Islam MT, Haque N, Muhammad N, Khan SI, Mahmud NU. Pattern of aerobic bacteria with antimicrobial susceptibility causing community acquired urinary tract infection. Mymensingh Med J 2009; 18:148-153. [PMID: 19623138] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Since antibiotic resistance among uropathogens have gradually been rising, so it is important to have knowledge about the pattern and antimicrobial susceptibility to choose the correct treatment regimen. A cross sectional study was carried out in the Department of Microbiology, Mymensingh Medical College between July 2007 to June 2008 to determine the prevalence, relationship between pyuria and urine culture and antibiotic resistance pattern among the bacterial isolates of community acquired UTI (CUTI). A total of 100 urine samples were subjected to microscopy and culture. Antimicrobial susceptibility of isolates was done by disk diffusion method according to Clinical and Laboratory Standard Institute (CLSI) 2007. Of the total samples, 45(45%) were culture positive and among them female were more (71.1%) than the male (28.9%). The predominant age group was 15-29. Having pus cell >5/HPF, 93.3% culture positive patients showed significant pyuria. The isolated microorganisms were Escherichia coli (73%) followed by Staphylococcus saprophyticus (11.1%), Klebsiella spp (6.7%), Enterobacter spp (4.4%), Pseudomonas aeruginosa (2.2%) and Proteus spp (2.2%). All the bacterial isolates were sensitive to imipenem, while they showed variation in sensitivity to other commonly used antibiotics. Imipenem, nitrofurantoin and gentamicin were found to be effective for Gram-negative isolates and imipenem, azithromycin, vancomycin, ceftazidime for Gram-positive isolates. Our study emphasized over the changing etiology and emergence of drug resistance of the UTI within our country.
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Affiliation(s)
- U S Parvin
- Department of Microbiology, Mymensingh Medical College (MMC), Mymensingh, Bangladesh
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Haque N, Hossain MA, Bilkis L, Musa AK, Mahamud C, Bari MS, Haque N, Muhammad N, Parvin US, Islam MT, Khan SI, Islam MA, Haque S. Antibiotic susceptibility pattern of Staphylococcus epidermidis. Mymensingh Med J 2009; 18:142-147. [PMID: 19623137] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The present study was done to evaluate the antibiotic susceptibility pattern of Staphylococcus epidermidis isolated from different clinical specimens and healthy controls in the department of Microbiology, Mymensingh Medical College from July, 2007 to June, 2008. A total of 62 Staphylococcus epidermidis were isolated from 230 specimens. Among them 32(23%) S. epidermidis were isolated from 200 cases and 30(100%) were isolated from 30 healthy controls. Antimicrobial susceptibility test of the isolates was carried out by disk diffusion method as per recommendation of Clinical and Laboratory Standard Institute, 2007. Isolates of S. epidermidis from cases showed multidrug resistance as follows-penicillin 94%, oxacillin 56%, gentamycin 44%, erythromycin 41%, doxycycline 37%, cephradine 34%, ciprofloxacin 28%, ceftriaxone 28%, fusidic acid 22% and cefuroxime 19%. On the other hand, isolates of S. epidermidis from controls were susceptible to all antibiotics except penicillin, which was only 10% resistant. A remarkable difference was observed in the resistance pattern of S. epidermidis isolated from cases and healthy controls. However in our study no isolates of S. epidermidis was resistant to rifampicin and vancomycin, which can be used as last line of drugs to treat nosocomial S. epidermidis infection.
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Affiliation(s)
- N Haque
- Department of Microbiology, Mymensingh Medical College (MMC), Mymensingh, Bangladesh
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Muhammad N, Kamal M, Islam T, Islam N, Shafiquzzaman M. A study to evaluate the efficacy and safety of oral fluconazole in the treatment of tinea versicolor. Mymensingh Med J 2009; 18:31-35. [PMID: 19182746] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
In our study of 6 month of pityriasis versicolor patient in skin department of Mymensingh Medical College Hospital outdoor, most of the patient was of age 16-25 years (63.33%), 20% was of age 26-35 years and 16.67% was of 36-45 years. Age distribution among male patient maximum (66.67%) was of 16-25 years and among females the maximum 50% was also of 16-25 years. Mostly was male (80%) and 20% was female only 20% of the patient has got the positive family history whereas 80% with no family history of the disease, which indicates that there is no hereditary predilection. Of the patient 66.67% was unmarried and 33.33% was married. Late adolescence & early adult age groups are predominantly affected. Small children & elderly adults are infected only in unusual circumstances, such as prolonged occlusion or immunosuppresion. Prevalence reported to be as high as 50% in the humid, hot environment of Western Samoa & on low as 11.1% in the colder temperature of Sweden. About sex distribution of patients 20% were female. The study shows that majority of patients were male (20%).
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Affiliation(s)
- N Muhammad
- Mymensingh Medical College & Hospital, Department of Anatomy, Mymensingh, Bangladesh
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Olatunji FO, Ibrahim UF, Muhammad N, Msheliza AA, Ibrahim UY, Rano BT, Ali MU. Challenges of glaucoma service delivery in Federal Medical Centre, Azare, Nigeria. Afr J Med Med Sci 2008; 37:355-359. [PMID: 19301713] [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: 05/27/2023]
Abstract
To find out the challenges of management of glaucoma, an assessment of glaucoma services at the Federal Medical Centre, Azare was carried out through oral interviews of ophthalmic staff, enquiring about available personnel and diagnostic equipment from relevant sectors of the Hospital and local authorities. A retrospective analysis of records of glaucoma patients (aged > 20 years) who presented at the centre between February 2002 and July 2007 was carried out. The ophthalmology unit has 6 ophthalmic nurses, 1 ophthalmologist and 1 optometrist. Instruments available were: A Schiotz tonometer, a slit lamp biomicroscope, a Volk +90 Diopter lens, a Goldman applanation tonometer, a l-mirror gonioscopy lens, a non contact applantation tonometer and a visual field analyzer. All the patients treated conservatively had guttae timolol 0.5% either solely (64 eyes, 50.8%) or in combination with other intraocular pressure lowering eye drops. Only one patient was treated with guttae latanoprost 0.005% (Xalatan). The only type of surgery carried out was Trabeculectomy in 22 eyes (14.0%). No intra or post operative antifibrotic agent was used. There is a dire need of human and infrastructural facilities for adequate management of glaucoma in the centre.
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Affiliation(s)
- F O Olatunji
- Department of Ophthalmology, University of Ilorin Teaching Hospital, Ilorin, Nigeria.
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