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Khan NS, Sulaiman M. Approaches through effects of Hall current, nanoparticle radius, inter-particle spacing and multiple slips on the suspension of copper-water nanofluid with gyrotactic microorganisms. Nanotechnology 2023; 35:115301. [PMID: 38081079 DOI: 10.1088/1361-6528/ad143b] [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] [Subscribe] [Scholar Register] [Received: 09/03/2023] [Accepted: 12/11/2023] [Indexed: 12/28/2023]
Abstract
In this comprehensive study, the dynamic behavior of a copper-water nanofluid infused with gyrotactic microorganisms, focusing on the effects of Hall current, nanoparticle radius, inter-particle spacing, and multiple slip mechanisms is investigated. Through advanced numerical simulations and rigorous analysis, intricate relationships between the parameters and the suspension's characteristics are uncovered. Comparison of the present results show a good agreement with the published results. The research findings unveil the potential for fine-tuning transport processes, manipulating thermal properties, and controlling dispersion and aggregation in nanofluids. These insights hold promise for a wide array of applications, from enhancing heat exchangers and cooling systems to pioneering biomedical devices utilizing gyrotactic microorganisms for targeted drug delivery and sensing. This study not only advances the fundamental understanding of nanofluid dynamics but also paves the way for innovative developments across various scientific and engineering domains.
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Affiliation(s)
- Noor Saeed Khan
- Department of Mathematics, Division of Science and Technology, University of Education, Lahore 54000, Pakistan
| | - M Sulaiman
- Department of Mathematics, COMSATS University Islamabad, Attock Campus, Main Kamrah Road, Attock 43600, Pakistan
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2
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Wiart C, Shorna AA, Rahmatullah M, Nissapatorn V, Seelan JSS, Rahman H, Rusdi NA, Mustaffa N, Elbehairy L, Sulaiman M. The Garlic Tree of Borneo, Scorodocarpus borneensis (Baill.) Becc. (Olacaceae): Potential Utilization in Pharmaceutical, Nutraceutical, and Functional Cosmetic Industries. Molecules 2023; 28:5717. [PMID: 37570687 PMCID: PMC10419944 DOI: 10.3390/molecules28155717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Revised: 07/06/2023] [Accepted: 07/07/2023] [Indexed: 08/13/2023] Open
Abstract
Scorodocarpus borneensis (Baill.) Becc. is attracting increased attention as a potential commercial medicinal plant product in Southeast Asia. This review summarizes the current knowledge on the taxonomy, habitat, distribution, medicinal uses, natural products, pharmacology, toxicology, and potential utilization of S. borneesis in the pharmaceutical/nutraceutical/functional cosmetic industries. All data in this review were compiled from Google Scholar, PubMed, Science Direct, Web of Science, ChemSpider, PubChem, and a library search from 1866 to 2022. A total of 33 natural products have been identified, of which 11 were organosulfur compounds. The main organosulfur compound in the seeds is bis-(methylthiomethyl)disulfide, which inhibited the growth of a broad spectrum of bacteria and fungi, T-lymphoblastic leukemia cells, as well as platelet aggregation. Organic extracts evoked anti-microbial, cytotoxic, anti-free radical, and termiticidal effects. S. borneensis and its natural products have important and potentially patentable pharmacological properties. In particular, the seeds have the potential to be used as a source of food preservatives, antiseptics, or termiticides. However, there is a need to establish acute and chronic toxicity, to examine in vivo pharmacological effects and to perform clinical studies.
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Affiliation(s)
- Christophe Wiart
- Institute for Tropical Biology & Conservation, University Malaysia Sabah, Kota Kinabalu 88400, Malaysia; (J.S.S.S.); (H.R.); (N.A.R.); (N.M.)
| | - Afsana Amin Shorna
- Department of Biotechnology and Genetic Engineering, University of Development Alternative, Dhaka 1209, Bangladesh; (A.A.S.); (M.R.)
| | - Mohammed Rahmatullah
- Department of Biotechnology and Genetic Engineering, University of Development Alternative, Dhaka 1209, Bangladesh; (A.A.S.); (M.R.)
| | - Veeranoot Nissapatorn
- School of Allied Health Sciences, World Union for Herbal Drug Discovery (WUHeDD), and Research Excellence Center for Innovation and Health Products (RECIHP), Walailak University, Nakhon Si Thammarat 80160, Thailand;
| | - Jaya Seelan Sathya Seelan
- Institute for Tropical Biology & Conservation, University Malaysia Sabah, Kota Kinabalu 88400, Malaysia; (J.S.S.S.); (H.R.); (N.A.R.); (N.M.)
| | - Homathevi Rahman
- Institute for Tropical Biology & Conservation, University Malaysia Sabah, Kota Kinabalu 88400, Malaysia; (J.S.S.S.); (H.R.); (N.A.R.); (N.M.)
| | - Nor Azizun Rusdi
- Institute for Tropical Biology & Conservation, University Malaysia Sabah, Kota Kinabalu 88400, Malaysia; (J.S.S.S.); (H.R.); (N.A.R.); (N.M.)
| | - Nazirah Mustaffa
- Institute for Tropical Biology & Conservation, University Malaysia Sabah, Kota Kinabalu 88400, Malaysia; (J.S.S.S.); (H.R.); (N.A.R.); (N.M.)
| | - Layane Elbehairy
- Department of Chemistry, Faculty of Science, University Malaya, Kuala Lumpur 50603, Malaysia; (L.E.); (M.S.)
| | - Mazdida Sulaiman
- Department of Chemistry, Faculty of Science, University Malaya, Kuala Lumpur 50603, Malaysia; (L.E.); (M.S.)
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Kathirvalu G, Chandramathi S, S A A, Atiya N, Begum S, Christophe W, Sulaiman M, Abdullah N, Mani RR, Jindal HM, Zulkipli M. Antibacterial and antibiotic potentiating capabilities of extracts isolated from Burkillanthus malaccensis, Diospyros hasseltii and Cleisthanthus bracteosus against human pathogenic bacteria. Trop Biomed 2023; 40:152-159. [PMID: 37650400 DOI: 10.47665/tb.40.2.004] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
Antibiotics which once a boon in medicine and saved millions of lives are now facing an ever-growing menace of antibacterial resistance, which desperately needs new antibacterial drugs which are innovative in chemistry and mode of action. For many years, the world has turned to natural plants with antibacterial properties to combat antibiotic resistance. On that basis, we aimed to identify plants with antibacterial and antibiotic potentiating properties. Seventeen different extracts of 3 plants namely Burkillanthus malaccensis, Diospyros hasseltii and Cleisthanthus bracteosus were tested against multi-drug resistant Acinetobacter baumannii, Escherichia coli, Pseudomonas aeruginosa, Klebsiella pneumoniae, Methicillinresistant Staphylococcus aureus (MRSA) and methicillin-susceptible Staphylococcus aureus (MSSA). Antibacterial activity of hexane, methanol and chloroform extracts of bark, seed, fruit, flesh and leaves from these plants were tested using, disk diffusion assay, minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) assays. Antibiotic potentiating capabilities were tested using time-kill assay. B. malaccensis fruit chloroform extract showed the biggest zone of inhibition against MRSA (13.00±0.0 mm) but C. bracteosus bark methanol extract showed the biggest inhibition zone against MSSA (15.33±0.6 mm). Interestingly, bark methanol extract of C. bracteosus was active against MRSA (8.7±0.6 mm), MSSA (7.7±0.6 mm) (Gram-positive) and A. baumannii (7.7±0.6 mm) (Gram-negative). Overall, the leaf methanol and bark methanol extract of C. bracteosus warrants further investigation such as compound isolation and mechanism of action for validating its therapeutic use as antibiotic potentiator importantly against MRSA and A. baumannii.
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Affiliation(s)
- G Kathirvalu
- Department of Medical Microbiology, Faculty of Medicine, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - S Chandramathi
- Department of Medical Microbiology, Faculty of Medicine, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Azahar S A
- Department of Medical Microbiology, Faculty of Medicine, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - N Atiya
- Department of Medical Microbiology, Faculty of Medicine, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - S Begum
- Department of Medical Microbiology, Faculty of Medicine, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - W Christophe
- Institute of Tropical Biology and Conservation, University Malaysia Sabah, Sabah, Malaysia
| | - M Sulaiman
- Chemistry Faculty, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - N Abdullah
- Natural Product Division, Forest Research Institute Malaysia (FRIM), 52109 Kepong, Selangor
| | - R R Mani
- Department of Pharmaceutical Biology, Faculty of Pharmaceutical Sciences, UCSI University, Cheras, 56000, Kuala Lumpur, Malaysia
| | - H M Jindal
- Miller School of Medicine, University of Miami, Florida, United States
| | - M Zulkipli
- School of Pharmacy, Faculty of Science and Engineering, University of Nottingham Malaysia, Jalan Broga, 43500, Semenyih, Selangor
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Wiart C, Kathirvalu G, Raju CS, Nissapatorn V, Rahmatullah M, Paul AK, Rajagopal M, Sathiya Seelan JS, Rusdi NA, Lanting S, Sulaiman M. Antibacterial and Antifungal Terpenes from the Medicinal Angiosperms of Asia and the Pacific: Haystacks and Gold Needles. Molecules 2023; 28:molecules28093873. [PMID: 37175283 PMCID: PMC10180233 DOI: 10.3390/molecules28093873] [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: 12/15/2022] [Revised: 03/17/2023] [Accepted: 03/18/2023] [Indexed: 05/15/2023] Open
Abstract
This review identifies terpenes isolated from the medicinal Angiosperms of Asia and the Pacific with antibacterial and/or antifungal activities and analyses their distribution, molecular mass, solubility, and modes of action. All data in this review were compiled from Google Scholar, PubMed, Science Direct, Web of Science, ChemSpider, PubChem, and library searches from 1968 to 2022. About 300 antibacterial and/or antifungal terpenes were identified during this period. Terpenes with a MIC ≤ 2 µg/mL are mostly amphiphilic and active against Gram-positive bacteria, with a molecular mass ranging from about 150 to 550 g/mol, and a polar surface area around 20 Ų. Carvacrol, celastrol, cuminol, dysoxyhainic acid I, ent-1β,14β-diacetoxy-7α-hydroxykaur-16-en-15-one, ergosterol-5,8-endoperoxide, geranylgeraniol, gossypol, 16α-hydroxy-cleroda-3,13 (14)Z-diene-15,16-olide, 7-hydroxycadalene, 17-hydroxyjolkinolide B, (20R)-3β-hydroxy-24,25,26,27-tetranor-5α cycloartan-23,21-olide, mansonone F, (+)-6,6'-methoxygossypol, polygodial, pristimerin, terpinen-4-ol, and α-terpineol are chemical frameworks that could be candidates for the further development of lead antibacterial or antifungal drugs.
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Affiliation(s)
- Christophe Wiart
- Institute for Tropical Biology & Conservation, University Malaysia Sabah, Kota Kinabalu 88400, Malaysia
| | - Geethanjali Kathirvalu
- Department of Medical Microbiology, Faculty of Medicine, University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Chandramathi Samudi Raju
- Department of Medical Microbiology, Faculty of Medicine, University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Veeranoot Nissapatorn
- Research Excellence Centre for Innovation and Health Products (RECIHP), Walailak University, Nakhon Si Thammarat 80160, Thailand
| | - Mohammed Rahmatullah
- Department of Biotechnology & Genetic Engineering, University of Development Alternative, Dhaka 1207, Bangladesh
| | - Alok K Paul
- School of Pharmacy and Pharmacology, University of Tasmania, Hobart, TAS 7001, Australia
| | - Mogana Rajagopal
- Faculty of Pharmaceutical Sciences, UCSI University, Kuala Lumpur 56000, Malaysia
| | | | - Nor Azizun Rusdi
- Institute for Tropical Biology & Conservation, University Malaysia Sabah, Kota Kinabalu 88400, Malaysia
| | - Scholastica Lanting
- Institute for Tropical Biology & Conservation, University Malaysia Sabah, Kota Kinabalu 88400, Malaysia
| | - Mazdida Sulaiman
- Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia
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Sulaiman M, Zarubaev V, Samudi C, Rahmatullah M, Jannat K, Paul A, Rajagopal M, Salvaraj M, Nissapatorn V, Suleiman M, Butler M, Wiart C. Natural products from medicinal plants in Asia and the Pacific for RNA viruses: Hercules' fifth labour. Pharm Biol 2022; 60:2049-2087. [PMID: 36305538 PMCID: PMC9621202 DOI: 10.1080/13880209.2022.2130944] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 09/21/2022] [Accepted: 09/23/2022] [Indexed: 06/16/2023]
Abstract
CONTEXT The emergence of zoonotic viruses in the last decades culminating with COVID-19 and challenges posed by the resistance of RNA viruses to antiviral drugs requires the development of new antiviral drugs. OBJECTIVE This review identifies natural products isolated from Asian and Pacific medicinal plants with in vitro and in vivo antiviral activity towards RNA viruses and analyses their distribution, molecular weights, solubility and modes of action. MATERIALS AND METHODS All data in this review was compiled from Google Scholar, PubMed, Science Direct, Web of Science, ChemSpider, PubChem and library search from 1961 to 2022. RESULTS Out of about 350 molecules identified, 43 phenolics, 31 alkaloids, and 28 terpenes were very strongly active against at least one type of RNA virus. These natural products are mainly planar and amphiphilic, with a molecular mass between 200 and 400 g/mol and target viral genome replication. Hydroxytyrosol, silvestrol, lycorine, tylophorine and 12-O-tetradecanoylphorbol 13-acetate with IC50 below 0.01 µg/mL and selectivity index (S.I.) above 100 have the potential to be used for the development of anti-RNA virus leads. DISCUSSION AND CONCLUSIONS The medicinal plants of Asia and the Pacific are a rich source of natural products with the potential to be developed as lead for the treatment of RNA viral infections.
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Affiliation(s)
- Mazdida Sulaiman
- Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia
| | - Vladimir Zarubaev
- Department of Virology, Pasteur Institute of Epidemiology and Microbiology, Saint Petersburg, Russian Federation
| | - Chandramathi Samudi
- Department of Medical Microbiology, University of Malaya, Kuala Lumpur, Malaysia
| | - Mohammed Rahmatullah
- Department of Biotechnology and Genetic Engineering, University of Development, Dhaka, Bangladesh
| | - Khoshnur Jannat
- Department of Biotechnology and Genetic Engineering, University of Development, Dhaka, Bangladesh
| | - Alok Paul
- School of Pharmacy and Pharmacology, University of Tasmania, Hobart, Australia
| | - Mogana Rajagopal
- Faculty of Pharmaceutical Sciences, UCSI University, Kuala Lumpur, Malaysia
| | - Malarvili Salvaraj
- Faculty of Pharmaceutical Sciences, UCSI University, Kuala Lumpur, Malaysia
| | - Veeranoot Nissapatorn
- School of Allied Health Sciences, World Union for Herbal Drug Discovery (WUHeDD) and Research Excellence Center for Innovation and Health Products (RECIHP), Walailak University, Nakhon Si Thammarat, Thailand
| | - Monica Suleiman
- Institute for Tropical Biology and Conservation, University Malaysia Sabah, Kota Kinabalu, Malaysia
| | | | - Christophe Wiart
- Institute for Tropical Biology and Conservation, University Malaysia Sabah, Kota Kinabalu, Malaysia
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6
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Sulaiman M, Nissapatorn V, Rahmatullah M, Paul AK, Rajagopal M, Rusdi NA, Seelan JSS, Suleiman M, Zakaria ZA, Wiart C. Antimicrobial Secondary Metabolites from the Mangrove Plants of Asia and the Pacific. Mar Drugs 2022; 20:md20100643. [PMID: 36286466 PMCID: PMC9605323 DOI: 10.3390/md20100643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Revised: 09/20/2022] [Accepted: 09/26/2022] [Indexed: 11/07/2022] Open
Abstract
Microbes such as the White Spot Syndrome Virus account for severe losses in the shrimp farming industry globally. This review examines the literature on the mangrove plants of Asia and the Pacific with antibacterial, antifungal, or antiviral activities. All of the available data published on this subject were collected from Google Scholar, PubMed, Science Direct, Web of Science, ChemSpider, PubChem, and a library search from 1968 to 2022. Out of about 286 plant species, 119 exhibited antimicrobial effects, and a total of 114 antimicrobial natural products have been identified including 12 with MIC values below 1 µg/mL. Most of these plants are medicinal. The mangrove plants of Asia and the Pacific yield secondary metabolites with the potential to mitigate infectious diseases in shrimp aquaculture.
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Affiliation(s)
- Mazdida Sulaiman
- Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Veeranoot Nissapatorn
- School of Allied Health Sciences and World Union for Herbal Drug Discovery (WUHeDD), Walailak University, Nakhon Si Thammarat 80160, Thailand
| | - Mohammed Rahmatullah
- Department of Biotechnology & Genetic Engineering, University of Development Alternative, Dhaka 1207, Bangladesh
| | - Alok K. Paul
- School of Pharmacy and Pharmacology, University of Tasmania, Hobart, TAS 7001, Australia
| | - Mogana Rajagopal
- Faculty of Pharmaceutical Sciences, UCSI University, Kuala Lumpur 56000, Malaysia
| | - Nor Azizun Rusdi
- Institute for Tropical Biology & Conservation, University Malaysia Sabah, Kota Kinabalu 88400, Malaysia
| | - Jaya Seelan Sathya Seelan
- Institute for Tropical Biology & Conservation, University Malaysia Sabah, Kota Kinabalu 88400, Malaysia
| | - Monica Suleiman
- Institute for Tropical Biology & Conservation, University Malaysia Sabah, Kota Kinabalu 88400, Malaysia
| | - Zainul Amiruddin Zakaria
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, University Malaysia Sabah, Kota Kinabalu 88400, Malaysia
| | - Christophe Wiart
- Institute for Tropical Biology & Conservation, University Malaysia Sabah, Kota Kinabalu 88400, Malaysia
- Correspondence:
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Sulaiman M, Jannat K, Nissapatorn V, Rahmatullah M, Paul AK, de Lourdes Pereira M, Rajagopal M, Suleiman M, Butler MS, Break MKB, Weber JF, Wilairatana P, Wiart C. Antibacterial and Antifungal Alkaloids from Asian Angiosperms: Distribution, Mechanisms of Action, Structure-Activity, and Clinical Potentials. Antibiotics (Basel) 2022; 11:antibiotics11091146. [PMID: 36139926 PMCID: PMC9495154 DOI: 10.3390/antibiotics11091146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 08/06/2022] [Accepted: 08/10/2022] [Indexed: 11/16/2022] Open
Abstract
The emergence of multidrug-resistant bacteria and fungi requires the development of antibiotics and antifungal agents. This review identified natural products isolated from Asian angiosperms with antibacterial and/or antifungal activities and analyzed their distribution, molecular weights, solubility, and modes of action. All data in this review were compiled from Google Scholar, PubMed, Science Direct, Web of Science, ChemSpider, PubChem, and a library search from 1979 to 2022. One hundred and forty-one antibacterial and/or antifungal alkaloids were identified during this period, mainly from basal angiosperms. The most active alkaloids are mainly planar, amphiphilic, with a molecular mass between 200 and 400 g/mol, and a polar surface area of about 50 Å2, and target DNA and/or topoisomerase as well as the cytoplasmic membrane. 8-Acetylnorchelerythrine, cryptolepine, 8-hydroxydihydrochelerythrine, 6-methoxydihydrosanguinarine, 2′-nortiliacorinine, pendulamine A and B, rhetsisine, sampangine, tiliacorine, tryptanthrin, tylophorinine, vallesamine, and viroallosecurinine yielded MIC ≤ 1 µg/mL and are candidates for the development of lead molecules.
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Affiliation(s)
- Mazdida Sulaiman
- Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Khoshnur Jannat
- Department of Biotechnology & Genetic Engineering, University of Development Alternative, Dhaka 1207, Bangladesh
| | - Veeranoot Nissapatorn
- School of Allied Health Sciences and World Union for Herbal Drug Discovery (WUHeDD), Walailak University, Nakhon Si Thammarat 80160, Thailand
| | - Mohammed Rahmatullah
- Department of Biotechnology & Genetic Engineering, University of Development Alternative, Dhaka 1207, Bangladesh
| | - Alok K. Paul
- School of Pharmacy and Pharmacology, University of Tasmania, Hobart, TAS 7001, Australia
| | - Maria de Lourdes Pereira
- CICECO-Aveiro Institute of Materials & Department of Medical Sciences, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Mogana Rajagopal
- Faculty of Pharmaceutical Sciences, UCSI University, Kuala Lumpur 56000, Malaysia
| | - Monica Suleiman
- Institute for Tropical Biology & Conservation, Universiti Malaysia Sabah, Kota Kinabalu 88400, Malaysia
| | | | - Mohammed Khaled Bin Break
- Department of Pharmaceutical Chemistry, College of Pharmacy, University of Hail, Hail 81411, Saudi Arabia
| | - Jean-Frédéric Weber
- UFR Sciences Pharmaceutiques, INRAE, Bordeaux INP, UR ŒNOLOGIE, EA 4577, USC 1366, ISVV, Université de Bordeaux, 210 Chemin de Leysotte, 33882 Villenave d’Ornon, France
| | - Polrat Wilairatana
- Department of Clinical Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok 10400, Thailand
| | - Christophe Wiart
- Institute for Tropical Biology & Conservation, Universiti Malaysia Sabah, Kota Kinabalu 88400, Malaysia
- Correspondence:
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Samarasekara N, Dinsdale E, Taylor S, Sulaiman M, Gittens A, Ahmed E, Jain A, Tang M, Ninan S. 715 REDUCING OVERTREATMENT OF TYPE 2 DIABETES IN OLDER PEOPLE LIVING IN CARE HOMES. Age Ageing 2022. [DOI: 10.1093/ageing/afac034.715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Introduction
Older people in care homes living with frailty are less likely to benefit from tight glycaemic control in the management of type 2 diabetes with increased risk of adverse effects for example hypoglycaemia, falls and hospital admission. We wished to ascertain the scale of the problem and reduce overtreatment. We defined overtreatment based on American Diabetes Association guidelines as being on an agent that can cause hypoglycaemia and having an HBA1C of ≤53 mmol/mol or, an HbA1c 53–64 mmol/mol with either three or more co-morbidities.
Methods
In 2016, we audited the management of type 2 diabetes in older people discharged from LTHT to care homes. We discussed our concerns with diabetes and geriatric medicine colleagues across medical, nursing and pharmacy disciplines. We engaged the support of the citywide diabetes network which comprises secondary care colleagues, general practitioners and pharmacists. We presented the findings of our initial audit to colleagues within primary and secondary care through departmental meetings and citywide network meetings. We wrote a new guideline, specifically for frail older people that was disseminated citywide through these networks. We re-audited in 2020.
Results
In total, 113 cases were reviewed in 2016 and 105 cases in 2020. In 2020, only 6% (6 patients) were overtreated compared to 38% (43 patients) in 2016.
Conclusions
There has been a marked reduction in overtreatment which should result in less adverse events. We believe the reasons for success lie in wide engagement of relevant stakeholder groups around an issue that is important, large in scale and meaningful to both patient and clinician. There are potential cost savings from reducing medications and reducing harm.
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Affiliation(s)
| | | | - S Taylor
- Leeds Teaching Hospitals Trust (LTHT)
| | | | - A Gittens
- Leeds Teaching Hospitals Trust (LTHT)
| | - E Ahmed
- Leeds Teaching Hospitals Trust (LTHT)
| | - A Jain
- Leeds Teaching Hospitals Trust (LTHT)
| | - M Tang
- Leeds Teaching Hospitals Trust (LTHT)
| | - S Ninan
- Leeds Teaching Hospitals Trust (LTHT)
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Waseem W, Sulaiman M, Aljohani AJ. Investigation of fractional models of damping material by a neuroevolutionary approach. Chaos, Solitons & Fractals 2020. [DOI: 10.1016/j.chaos.2020.110198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
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10
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Sulaiman M, Rahman A, Mohamed N. Effect of water-based sol gel method on structural, thermal and conductivity properties of LiNO 3 –Al 2 O 3 composite solid electrolytes. ARAB J CHEM 2017. [DOI: 10.1016/j.arabjc.2015.04.031] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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11
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Isa SM, Azri M, Ibrahim Z, Talib M, Sulaiman M, Meng Q, Abu Khanipah NH, Rahim NA. Experimental investigation on scaling factor of fuzzy logic speed control for induction motor drives. 2017 6th International Conference on Electrical Engineering and Informatics (ICEEI) 2017. [DOI: 10.1109/iceei.2017.8312439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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12
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Kiruthika K, Sulaiman M, Gopalan R. <b>Additions to the flora of Coimbatore hills, Tamil Nadu, India</b>. J Threat Taxa 2017. [DOI: 10.11609/jott.2991.9.2.9881-9884] [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: 11/27/2022] Open
Abstract
The occurrence of Cosmostigma racemosum, Blachia umbellata and Vanilla walkeriae are being reported for the first time from Coimbatore hills.
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Mat S, Ibrahim Z, Azri M, Sulaiman M, Talib M, Abd Rahim N. Vector controlled AC motor drives for long cable application: analysis of harmonics at motor terminal. 4th IET Clean Energy and Technology Conference (CEAT 2016) 2016. [DOI: 10.1049/cp.2016.1352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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14
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Qi X, Blanco V, Chu Z, Vallabhapurapu S, Sulaiman M, Franco R. P-040 Phosphatidylserine Targeted Therapy of Pancreatic Cancer Using SapC-DOPS Nanovesicles. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv233.40] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Blanco V, Chu Z, Vallabhapurapu S, Sulaiman M, Kendler A, Curry R, Warnick R, Franco R, Qi X. NT-06 * PHOSPHATIDYLSERINE-SELECTIVE TARGETING AND ANTICANCER EFFECTS OF SapC-DOPS NANOVESICLES ON BRAIN TUMORS. Neuro Oncol 2014. [DOI: 10.1093/neuonc/nou265.6] [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: 11/12/2022] Open
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Nawaz Z, Mushtaq F, Mousa D, Rehman E, Sulaiman M, Aslam N, Khawaja N. Pattern of glomerular disease in the Saudi population: a single-center, five-year retrospective study. Saudi J Kidney Dis Transpl 2014; 24:1265-70. [PMID: 24231502 DOI: 10.4103/1319-2442.121288] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Glomerular diseases continue to be the leading cause of end-stage renal disease (ESRD) globally. Hence, it is important to recognize the pattern of glomerular diseases in different geographical areas in order to understand the patho-biology, incidence and progression of the disorder. Published studies from different centers in Saudi Arabia have reported contradicting results. In this retrospective study, we report our experience at the Armed Forces Hospital, Riyadh, Saudi Arabia. A total of 348 native renal biopsies performed at our center on patients with proteinuria >1 g, hematuria and/or renal impairment during a period of 5 years (between January 2005 and December 2009) were studied by a histopathologist using light microscopy, immunofluorescence and electron microscopy, and were categorized. Results showed that primary glomerular disease accounted for 55.1% of all renal biopsies. The most common histological lesion was focal and segmental glomerulosclerosis (FSGS) (27.6%), followed by minimal change disease (MCD) (17.7%) and membrano-proliferative glomerulonephritis (MPGN) (13.0%). Secondary glomerular disease accounted for 37.9% of the glomerular diseases, with lupus nephritis (LN) being the most common lesion (54.5%), followed by hypertensive nephrosclerosis (22%), post-infectious glomerulonephritis (7.5%), diabetic nephropathy (DN) (6.8%) and vasculitides (4.5%). Four percent of all biopsies turned out to be ESRD while biopsy was inadequate in 2.8% of the cases. In conclusion, our study showed that FSGS was the most common primary GN encountered, while LN was the most common secondary GN. We encountered 14 cases of crescentic glomerulonephritis. Also, the prevalence of MPGN, MCD, IgA nephropathy and membranous GN was many folds higher in males when compared with the Western data. We believe that it is mandatory to maintain a Saudi Arabian Renal Biopsy Registry to understand better the pattern of glomerular disease in the Saudi population and to follow any change in trend.
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Affiliation(s)
- Z Nawaz
- Department of Nephrology, Armed Forces Hospital, Riyadh, Saudi Arabia
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Sulaiman M, Matta MJ, Sunderesan NR, Gupta MP, Periasamy M, Gupta M. Resveratrol, an activator of SIRT1, upregulates sarcoplasmic calcium ATPase and improves cardiac function in diabetic cardiomyopathy. Am J Physiol Heart Circ Physiol 2009; 298:H833-43. [PMID: 20008278 DOI: 10.1152/ajpheart.00418.2009] [Citation(s) in RCA: 204] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Reduced sarcoplasmic calcium ATPase (SERCA2a) expression has been shown to play a significant role in the cardiac dysfunction in diabetic cardiomyopathy. The mechanism of SERCA2a repression is, however, not known. This study was designed to examine the effect of resveratrol (RSV), a potent activator of SIRT1, on cardiac function and SERCA2a expression in chronic type 1 diabetes. Adult male mice were injected with streptozotocin (STZ) and fed with either a regular diet or a diet enriched with RSV. STZ administration produced progressive decline in cardiac function, associated with markedly reduced SERCA2a and SIRT1 protein levels and increased collagen deposition; RSV treatment to these mice had a tremendous beneficial effect both in terms of improving SERCA2a expression and on cardiac function. In cultured cardiomyocytes, RSV restored SERCA2 promoter activity, which was otherwise highly repressed in high-glucose media. Protective effects of RSV were found to be dependent on its ability to activate Silent information regulator (SIRT) 1. In cardiomyocytes, overexpression of SIRT1 was found sufficient to activate SERCA2 promoter in a dose-dependent manner. In contrast, pretreatment of cardiomyocytes with SIRT1 antagonist, splitomycin, blocked these beneficial effects of RSV. In addition, SIRT1 knockout (+/-) mice were also found to be more sensitive to STZ-induced decline in SERCA2a mRNA. The data demonstrate that, in chronic diabetes, 1) the enzymatic activity of cardiac SIRT1 is reduced, which contributes to reduced expression of SERCA2a and 2) through activation of SIRT1, RSV enhances expression of SERCA2a and improves cardiac function.
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Affiliation(s)
- M Sulaiman
- Dept. of Physiology and Biophysics, Univ. of Illinois, Chicago, USA
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Wiart C, Kumar K, Yusof MY, Hamimah H, Fauzi ZM, Sulaiman M. Antiviral properties of ent-labdene diterpenes ofAndrographis paniculata nees, inhibitors of herpes simplex virus type 1. Phytother Res 2005; 19:1069-70. [PMID: 16372376 DOI: 10.1002/ptr.1765] [Citation(s) in RCA: 116] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Andrographolide, neoandrographolide and 14-deoxy-11,12-didehydroandrographolide, ent-labdene diterpenes isolated from Andrographis paniculata showed viricidal activity against herpes simplex virus 1 (HSV-1). None of these compounds exhibited significant cytotoxicity at viricidal concentrations.
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Affiliation(s)
- C Wiart
- Department of Pharmacy, Faculty of Medicine, University of Malaya, Malaysia.
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Wiart C, Hannah A, Yusof M, Hamimah H, Sulaiman M. Growth inhibition of foodborne and nosocomial pathogens by aqueous fraction of bearded Argostemma (Argostemma involucratum Hemsl., Rubiaceae). J Herb Pharmacother 2005; 5:97-102. [PMID: 16520301] [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: 05/07/2023]
Abstract
The crude methanol extract of Bearded Argostemma (Argostemma involucratum Hemsl., Rubiaceae) showed a good and broad spectrum of antibacterial activity against both Gram-negative and Gram-positive bacteria. The activity was increased on fractionation (hexane, dichloromethane and water), particularly in the aqueous fraction which was more active than the methanol extract and streptomycin (no activity was shown against tested moulds). Both the hexane and dichloromethane fractions were inactive. The objective of this experiment was to investigate the antibacterial activity of hexane, dichloromethane, and aqueous fractions of Argostemma involucratum Hemsl. The aqueous fraction of Bearded Argostemma may be a possible new option for the treatment of bacterial infections.
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Affiliation(s)
- C Wiart
- Department of Pharmacy, Faculty of Medicine, Kuala Lumpur, 50603, Malaysia
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Abstract
The ethanol extract of leaves of Piper porphyrophyllum N.E. Br. showed a broad spectrum of antibacterial activity. The activity was increased on fractionation (hexane, dichloromethane and aqueous), particularly in the aqueous fraction. No activity was shown against tested Candida albicans.
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Affiliation(s)
- C Wiart
- Department of Pharmacy, Faculty of Medicine, University of Malaya, Kuala Lumpur Malaysia.
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Wiart C, Hannah A, Yassim M, Hamimah H, Sulaiman M. Antimicrobial activity of Acalypha siamensis Oliv. ex Gage. J Ethnopharmacol 2004; 95:285-286. [PMID: 15507350 DOI: 10.1016/j.jep.2004.07.014] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2004] [Accepted: 07/21/2004] [Indexed: 05/24/2023]
Abstract
The hexane, dichloromethane, ethyl acetate and methanol fractions of leaves of Acalypha siamensis Oliv. ex Gage were evaluated for antibacterial and antifungal activity. The antibacterial activity was more pronounced in the ethyl acetate and methanol extracts. No activity was shown against tested moulds.
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Affiliation(s)
- C Wiart
- Department of Pharmacy, Faculty of Medicine, University of Malaya, Malaysia.
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Wiart C, Mogana S, Khalifah S, Mahan M, Ismail S, Buckle M, Narayana AK, Sulaiman M. Antimicrobial screening of plants used for traditional medicine in the state of Perak, Peninsular Malaysia. Fitoterapia 2004; 75:68-73. [PMID: 14693223 DOI: 10.1016/j.fitote.2003.07.013] [Citation(s) in RCA: 90] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Seventy-two extracts (methanol) obtained from the leaves, barks, and roots of 50 plant species used in the traditional medicine of Perak, Peninsular Malaysia, have been screened for antibacterial and antifungal activities. Peristrophe tinctoria, Polyalthia lateriflora, Knema malayana, Solanum torvum, Celosia argentea, Eclipta prostrata, Ancistrocladus tectorius, Dillenia suffruticosa, Piper stylosum and Rafflesia hasseltii displayed the broadest spectrum of activity.
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Affiliation(s)
- C Wiart
- Department of Pharmacy, University of Malaya, Malaysia.
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Abstract
The management of Scimitar syndrome in adulthood is controversial, with no guidelines for surgical correction. We present the case of a 66-year-old woman who presented late in life with Scimitar syndrome and a significant left-to-right shunt. We describe repair using an intra-atrial conduit from the anomalous vein to the foramen ovale, with a successful outcome.
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Affiliation(s)
- A R Casha
- Cardio-Thoracic Surgery Unit, St Luke's Hospital, Guardamangia, Malta.
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Gillett MP, Obineche EN, El-Rokhaimi M, Lakhani MS, Abdulle A, Sulaiman M. Lecithin: cholesterol acyltransfer, dyslipoproteinaemia and membrane lipids in uraemia. J Nephrol 2001; 14:472-80. [PMID: 11783603] [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: 02/23/2023]
Abstract
BACKGROUND Dyslipoproteinaemia is the most important complication linked to the increased morbidity and mortality of uraemic patients from cardiovascular disease. Many factors contribute to the dyslipoproteinaemia, including increased production of very low density lipoproteins (VLDL), decreased lipolysis and impaired low density lipoprotein (LDL) receptor activity. In this study, the role of decreased lecithin:cholesterol acyltransferase (LCAT) activity in relation to plasma and membrane lipid changes is examined. METHODS Fasted blood samples were taken from 65 uraemic patients, including roughly equal numbers of haemodialysis, peritoneal dialysis and undialysed subjects, and from 29 apparently healthy individuals. Plasma total and free cholesterol, cholesteryl esters (CE), total and individual phospholipids, high density lipoprotein (HDL)-, LDL- and VLDL-cholesterol were all measured, as were erythrocyte and lymphocyte free cholesterol and phospholipids. RESULTS More than half of all patients, including those both on haemodialysis and peritoneal dialysis, as well as untreated individuals, had relative plasma concentrations of CE below the normal mean - 2SD. These patients had significantly decreased LDL- (2.62 +/- 1.04 compared to 3.61 +/- 0.97 mmol/L; p < 0.001) and HDL-cholesterol (0.71 +/- 0.30 compared to 0.94 +/- 0.27 mmol/L; p < 0.01) and increased VLDL-cholesterol (0.60 +/- 0.50 compared to 0.47 +/- 0.26 mmol/L; p < 0.05) as well as significant increases in membrane cholesterol and cholesterol/phospholipid molar ratio in erythrocytes (3.30 +/- 0.49 and 0.87 +/- 0.08 compared to 2.95 +/- 0.18 mmol/g wet weight and 0.76 +/- 0.04 mol/mol respectively, both p < 0.001) and cholesterol/phospholipid molar ratio of lymphocytes (0.58 +/- 0.14 compared to 0.45 +/- 0.04 mol/mol; p < 0.001). They were markedly deficient in LCAT activity (56.1 +/- 20.4 compared to 105.5 +/- 17.5 nmol/ml/h; p < 0.001). The LCAT activity in plasma of patients with high CE was higher than for those with low CE, but it was also significantly less than normal and this group showed smaller changes in other lipid parameters. CONCLUSIONS LCAT deficiency is common in uraemia and is associated with changes not just in plasma lipids, but also in membrane lipids which may be relevant to the progression of the disease.
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Affiliation(s)
- M P Gillett
- Department of Biochemistry, Faculty of Medicine and Health Sciences, UAE University, Al Ain, Abu Dhabi, United Arab Emirates.
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Sulaiman M. Prediction of dynamic permeate flux during cross-flow ultrafiltration of polyethylene glycol using concentration polarization-gel layer model. J Memb Sci 2001. [DOI: 10.1016/s0376-7388(01)00416-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Abstract
A patient presenting with mixed affective symptoms was found to have active neurosyphilis after intermittent cognitive impairment suggested an organic cause. Most of these symptoms resolved after treatment with penicillin.
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Pawar AB, Sulaiman M. Control of early blight of potato in Maharashtra State. Hindustan Antibiot Bull 1969; 12:9-12. [PMID: 5370706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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Sulaiman M, Lukade GM, Dawkhar GS. Effect of some fungicides and antibiotics on sclerotial development and germination of ergot on Pennisetum typhoideum. Hindustan Antibiot Bull 1966; 9:94-6. [PMID: 5975727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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