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Said A, Abu-Elghait M, Atta HM, Salem SS. Antibacterial Activity of Green Synthesized Silver Nanoparticles Using Lawsonia inermis Against Common Pathogens from Urinary Tract Infection. Appl Biochem Biotechnol 2024; 196:85-98. [PMID: 37099124 PMCID: PMC10794286 DOI: 10.1007/s12010-023-04482-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [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] [Accepted: 04/11/2023] [Indexed: 04/27/2023]
Abstract
New and creative methodologies for the fabrication of silver nanoparticles (Ag-NPs), which are exploited in a wide range of consumer items, are of significant interest. Hence, this research emphasizes the biological approach of Ag-NPs through Egyptian henna leaves (Lawsonia inermis Linn.) extracts and analysis of the prepared Ag-NPs. Plant extract components were identified by gas chromatography mass spectrometry (GC-mass). The analyses of prepared Ag-NPs were carried out through UV-visible (UV-Vis), X-ray diffraction (XRD), transmission electron microscope (TEM), scanning electron microscope (SEM), and Fourier transform infrared (FTIR) analysis. UV-Vis reveals that Ag-NPs have a maximum peak at 460 nm in visible light. Structural characterization recorded peaks that corresponded to Bragg's diffractions for silver nano-crystal, with average crystallite sizes varying from 28 to 60 nm. Antibacterial activities of Ag-NPs were examined, and it is observed that all microorganisms are very sensitive to biologically synthesized Ag-NPs.
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Affiliation(s)
- Ahmed Said
- Botany and Microbiology Department, Faculty of Science, Al-Azhar University, Nasr City, 11884, Cairo, Egypt
| | - Mohammed Abu-Elghait
- Botany and Microbiology Department, Faculty of Science, Al-Azhar University, Nasr City, 11884, Cairo, Egypt
| | - Hossam M Atta
- Botany and Microbiology Department, Faculty of Science, Al-Azhar University, Nasr City, 11884, Cairo, Egypt
| | - Salem S Salem
- Botany and Microbiology Department, Faculty of Science, Al-Azhar University, Nasr City, 11884, Cairo, Egypt.
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2
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Khamis T, Abdelkhalek A, Abdellatif H, Dwidar N, Said A, Ahmed R, Wagdy K, Elgarhy R, Eltahan R, Mohamed H, Said Amer E, Hanna M, Ragab T, Kishk A, Wael J, Sarhan E, Saweres L, Reda M, Elkomy S, Mohamed A, Samy A, Khafaga A, Shaker Y, Yehia H, Alanazi A, Alassiri M, Tîrziu E, Bucur IM, Arisha AH. BM-MSCs alleviate diabetic nephropathy in male rats by regulating ER stress, oxidative stress, inflammation, and apoptotic pathways. Front Pharmacol 2023; 14:1265230. [PMID: 38044936 PMCID: PMC10690373 DOI: 10.3389/fphar.2023.1265230] [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: 07/22/2023] [Accepted: 10/12/2023] [Indexed: 12/05/2023] Open
Abstract
Introduction: Diabetic nephropathy (DN), a chronic kidney disease, is a major cause of end-stage kidney disease worldwide. Mesenchymal stem cells (MSCs) have become a promising option to mitigate several diabetic complications. Methods: In this study, we evaluated the therapeutic potential of bone marrow-derived mesenchymal stem cells (BM-MSCs) in a rat model of STZ-induced DN. After the confirmation of diabetes, rats were treated with BM-MSCs and sacrificed at week 12 after treatment. Results: Our results showed that STZ-induced DN rats had extensive histopathological changes, significant upregulation in mRNA expression of renal apoptotic markers, ER stress markers, inflammatory markers, fibronectin, and intermediate filament proteins, and reduction of positive immunostaining of PCNA and elevated P53 in kidney tissue compared to the control group. BM-MSC therapy significantly improved renal histopathological changes, reduced renal apoptosis, ER stress, inflammation, and intermediate filament proteins, as well as increased positive immunostaining of PCNA and reduced P53 in renal tissue compared to the STZ-induced DN group. Conclusion: In conclusion, our study indicates that BM-MSCs may have therapeutic potential for the treatment of DN and provide important insights into their potential use as a novel therapeutic approach for DN.
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Affiliation(s)
- Tarek Khamis
- Department of Pharmacology and Laboratory of Biotechnology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
| | - Adel Abdelkhalek
- Faculty of Veterinary Medicine, Badr University in Cairo, Badr, Egypt
| | - Hussein Abdellatif
- Department of Human and Clinical Anatomy, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman
- Anatomy and Embryology Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | - Nourelden Dwidar
- Faculty of Veterinary Medicine, Badr University in Cairo, Badr, Egypt
| | - Ahmed Said
- Faculty of Veterinary Medicine, Badr University in Cairo, Badr, Egypt
| | - Rama Ahmed
- Faculty of Veterinary Medicine, Badr University in Cairo, Badr, Egypt
| | - Kerolos Wagdy
- Faculty of Veterinary Medicine, Badr University in Cairo, Badr, Egypt
| | - Rowina Elgarhy
- Faculty of Veterinary Medicine, Badr University in Cairo, Badr, Egypt
| | - Rawan Eltahan
- Faculty of Veterinary Medicine, Badr University in Cairo, Badr, Egypt
| | - Hisham Mohamed
- Faculty of Veterinary Medicine, Badr University in Cairo, Badr, Egypt
| | - Eman Said Amer
- Faculty of Veterinary Medicine, Badr University in Cairo, Badr, Egypt
| | - Maria Hanna
- Faculty of Veterinary Medicine, Badr University in Cairo, Badr, Egypt
| | - Tarek Ragab
- Faculty of Veterinary Medicine, Badr University in Cairo, Badr, Egypt
| | - Abdallah Kishk
- Faculty of Veterinary Medicine, Badr University in Cairo, Badr, Egypt
| | - Judy Wael
- Faculty of Veterinary Medicine, Badr University in Cairo, Badr, Egypt
| | - Eyad Sarhan
- Faculty of Veterinary Medicine, Badr University in Cairo, Badr, Egypt
| | - Linda Saweres
- Faculty of Veterinary Medicine, Badr University in Cairo, Badr, Egypt
| | - Mohamed Reda
- Faculty of Veterinary Medicine, Badr University in Cairo, Badr, Egypt
| | - Sara Elkomy
- Faculty of Veterinary Medicine, Badr University in Cairo, Badr, Egypt
| | - Abdalah Mohamed
- Faculty of Veterinary Medicine, Badr University in Cairo, Badr, Egypt
| | - Abdullah Samy
- Faculty of Veterinary Medicine, Badr University in Cairo, Badr, Egypt
| | - Ateya Khafaga
- Faculty of Veterinary Medicine, Badr University in Cairo, Badr, Egypt
| | - Youliana Shaker
- Faculty of Veterinary Medicine, Badr University in Cairo, Badr, Egypt
| | - Hamdy Yehia
- Faculty of Veterinary Medicine, Badr University in Cairo, Badr, Egypt
| | - Asma Alanazi
- College of Medicine, King Saud Bin Abdulaziz University for Health Sciences (KSAU-HS), Riyadh, Saudi Arabia
- King Abdullah International Medical Research Center, Riyadh, Saudi Arabia
| | - Mohammed Alassiri
- King Abdullah International Medical Research Center, Riyadh, Saudi Arabia
- Department of Basic Sciences, College of Science and Health Professions, King Saud Bin Abdulaziz University for Health Sciences (KSAU-HS), Riyadh, Saudi Arabia
- Department of Pathology and Laboratory Medicine, King Abdulaziz Medical City (KAMC), Ministry of the National Guard—Health Affairs, Riyadh, Saudi Arabia
| | - Emil Tîrziu
- Department of Animal Production and Veterinary Public Health, Faculty of Veterinary Medicine, University of Life Sciences, “King Mihai I” from Timisoara [ULST], Timisoara, Romania
| | - Iulia Maria Bucur
- Department of Animal Production and Veterinary Public Health, Faculty of Veterinary Medicine, University of Life Sciences, “King Mihai I” from Timisoara [ULST], Timisoara, Romania
| | - Ahmed Hamed Arisha
- Department of Animal Physiology and Biochemistry, Faculty of Veterinary Medicine, Badr University in Cairo, Badr, Egypt
- Department of Physiology, Laboratory of Biotechnology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
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3
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Dunckley M, Ahmed K, Said A, Raza M, Dighe S, Al-Temimi A. Variability in the presentation of complicated jejunal diverticulosis. JRSM Open 2023; 14:20542704231183247. [PMID: 37425033 PMCID: PMC10328167 DOI: 10.1177/20542704231183247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/11/2023] Open
Abstract
Jejunal diverticulosis is a rare disease which normally presents for the first time with acute complications, often requiring surgical intervention. The diverticulae are acquired, occurring more commonly after middle age, but their aetiology is unclear. We discuss this condition in the context of four cases which presented to our hospital as emergencies over a five year period: small bowel obstruction, gastrointestinal haemorrhage, small bowel volvulus, and visceral perforation. Our aim is to encourage clinicians to include jejunal diverticular disease as a differential diagnosis in patients with abdominal symptoms.
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Affiliation(s)
- M.G. Dunckley
- Department of General Surgery, Dartford & Gravesham NHS Trust, Dartford, Kent, DA2 8DA, UK
| | - K. Ahmed
- Department of General Surgery, Dartford & Gravesham NHS Trust, Dartford, Kent, DA2 8DA, UK
| | - A. Said
- Department of General Surgery, Dartford & Gravesham NHS Trust, Dartford, Kent, DA2 8DA, UK
| | - M. Raza
- Department of General Surgery, Dartford & Gravesham NHS Trust, Dartford, Kent, DA2 8DA, UK
| | - S. Dighe
- Department of General Surgery, Dartford & Gravesham NHS Trust, Dartford, Kent, DA2 8DA, UK
| | - A. Al-Temimi
- Department of General Surgery, Dartford & Gravesham NHS Trust, Dartford, Kent, DA2 8DA, UK
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Enners S, Gradl G, Kieble M, Iliescu O, Freudewald L, Said A, Schulz M. Increased Demand for Pharmaceutical Drugs Containing Potassium Iodide In Connection with the Russia-Ukraine Conflict. Pharmazie 2023; 78:17-19. [PMID: 37138408 DOI: 10.1691/ph.2023.2541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
The current conflict between Russia and Ukraine increased concerns in the German population of a release of radioactive substances, e.g.radioactive iodine. A high dose of potassium iodide (PI) may prevent accumulation of radioactive iodine in the thyroid gland. Therefore, the German government keeps a sufficient quantity of PI in stock for public supply in case of an emergency. We investigated ambulatory drug dispensing rates of PI and found that the total dispensing of PI (statutory health insurance (SHI), private health insurance (PHI), and overthe-counter (OTC)) increased by 106% from February to March 2022. Changes in PI dispensing were mainly due to an increase in OTC sales, where PI as an antidote showed a sevenfold increase from around 930 packages (February 2022) to 6,500 packages (March 2022), while SHI and PHI dispensing remained relatively low. Furthermore, we investigated whether these changes in dispensing raised the number of suspected adverse drug reactions (ADR). We found no increase of ADR reports related to the use of PI-containing medicinal products between February and September 2022, neither in our national pharmacovigilance nor in the European EudraVigilance database. The data suggest that the mere possibility of a nuclear disaster in Ukraine raised the demand of PI in Germany. Thus, timely and proactive information and reassurance of the public of supply reliability by the Government in a case of a nuclear emergency could be helpful in preventing potential drug shortages and unfounded concern.
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Affiliation(s)
- S Enners
- German Institute for Drug Use Evaluation (DAPI), Freie Universität Berlin, Berlin, Germany; German Institute for Drug Use Evaluation (DAPI), Heidestr. 7, 10557 Berlin, Germany;,
| | - G Gradl
- German Institute for Drug Use Evaluation (DAPI), Freie Universität Berlin, Berlin, Germany
| | - M Kieble
- German Institute for Drug Use Evaluation (DAPI), Freie Universität Berlin, Berlin, Germany
| | - O Iliescu
- Drug Commission of German Pharmacists (AMK), Freie Universität Berlin, Berlin, Germany
| | - L Freudewald
- Drug Commission of German Pharmacists (AMK), Freie Universität Berlin, Berlin, Germany
| | - A Said
- Drug Commission of German Pharmacists (AMK), Freie Universität Berlin, Berlin, Germany
| | - M Schulz
- German Institute for Drug Use Evaluation (DAPI), Freie Universität Berlin, Berlin, Germany; Drug Commission of German Pharmacists (AMK), Freie Universität Berlin, Berlin, Germany; Institute of Pharmacy, Freie Universität Berlin, Berlin, Germany; German Institute for Drug Use Evaluation (DAPI), Heidestr. 7, 10557 Berlin, Germany;,
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5
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Yu Q, Ahmed O, Gutti S, Iyer D, Angle J, Navuluri R, Lorenz J, Sellers E, Ahmed S, Said A, Wahoud W, Patel M. Abstract No. 579 Meta-Analysis of Transjugular Intrahepatic Portosystemic Shunt Creation with Intravascular Ultrasound Guidance. J Vasc Interv Radiol 2023. [DOI: 10.1016/j.jvir.2022.12.437] [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: 02/27/2023] Open
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6
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Chow H, Ling H, Chan E, Chung B, Then L, Pang I, Chan S, Khor H, Tan C, Oon Y, Koh K, Cham Y, Said A, Fong A, Ong T. Coronary artery calcification – distribution, extent and 1-year outcomes in patients with low to intermediate pre-test probability of coronary artery disease. Int J Cardiol 2022. [DOI: 10.1016/j.ijcard.2022.10.075] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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7
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Umesh S, Chow H, Ling H, Chung B, Then L, Pang I, Chen L, Bhavnani C, Tan C, Oon Y, Koh K, Cham Y, Fong A, Said A, Ong T. Association of Dutch lipid clinic network criteria with reduction in low-density lipoprotein cholesterol in patients with ST-elevation myocardial infarction. Int J Cardiol 2022. [DOI: 10.1016/j.ijcard.2022.10.058] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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8
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Khan RU, Khan M, Sohail A, Ullah R, Iqbal A, Ahmad B, Khan IU, Tariq A, Ahmad M, Said A, Ullah S, Ali A, Rahman MU, Zaman A, Bilal H. Efficacy of pentamidine-loaded chitosan nanoparticles as a novel drug delivery system for Leishmania tropica. Trop Biomed 2022; 39:511-517. [PMID: 36602209 DOI: 10.47665/tb.39.4.003] [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: 12/31/2022]
Abstract
The present study compares the in vitro effects of nanoparticles loaded pentamidine drug and conventional pentamidine on Leishmania tropica. Herein, pentamidine-loaded chitosan nanoparticles (PTN-CNPs) have been synthesized through an ionic gelation method with sodium tripolyphosphate (TPP). Next, the physical characteristics of PTN-CNPs were determined through the surface texture, zeta potential, in vitro drug release, drug loading content (DLC), and encapsulation efficacy (EE) and compared its efficacy with free pentamidine (PTN) drug against promastigotes and axenic amastigotes forms of L. tropica in vitro. The PTN-CNPs displayed a spherical shape having a size of 88 nm, an almost negative surface charge (-3.09 mV), EE for PTN entrapment of 86%, and in vitro drug release of 92% after 36 h. In vitro antileishmanial activity of PTN-CNPs and free PTN was performed against Leishmania tropica KWH23 promastigote and axenic amastigote using 3-(4, 5- dimethylthiazol-2-yl)-2, 5-diphenyletetrazolium bromide (MTT) assay. It was observed that the effect of PTN-CNPs and free PTN on both forms of the parasite was dose and time dependent. Free PTN presented low efficacy even at higher dose (40 µg/ml) with 25.6 ± 1.3 and 26.5 ±1.4 mean viability rate of the promastigotes and axenic amastigotes, respectively after 72 hrs incubation. While PTN-CNPs showed strong antileishmanial effects on both forms of parasite with 16 ± 0.4 and 19 ± 0.7 mean viability rate at the same higher concentration (40 µg/ml) after 72 hrs incubation. Half maximal inhibitory concentration (IC50) values of PTN-CNPs toward promastigotes and amastigotes were obtained as 0.1375 µg/ml and 0.1910 µg/ml, respectively. In conclusion, PTN-CNPs effectively inhibited both forms of the L. tropica; however, its effect was more salient on promastigotes. This data indicates that the PTN-CNPs act as a target drug delivery system. However, further research is needed to support its efficacy in animal and human CL.
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Affiliation(s)
- R U Khan
- Institute of Pathology and Diagnostic Medicine, Khyber Medical University, Peshawar, Pakistan
| | - M Khan
- Institute of Pathology and Diagnostic Medicine, Khyber Medical University, Peshawar, Pakistan
| | - A Sohail
- Institute of Pathology and Diagnostic Medicine, Khyber Medical University, Peshawar, Pakistan
| | - R Ullah
- Department of Dairy Technology, Faculty of Veterinary and Animal Sciences, University of Agriculture Dera Ismail Khan, Pakistan
| | - A Iqbal
- Faculty of Veterinary and Animal Sciences, Gomal University, Dera Ismail Khan, Pakistan
| | - B Ahmad
- Department of Animal Sciences, Faculty of Veterinary and Animal Sciences, MNS University of Agriculture Multan, Punjab, 25000, Pakistan
| | - I U Khan
- Faculty of Veterinary and Animal Sciences, Gomal University, Dera Ismail Khan, Pakistan
| | - A Tariq
- Directorate of Livestock and Dairy Development Department, Khyber Pakhtunkhwa, Pakistan
| | - M Ahmad
- Department of Animal Sciences, Quaid-E Azam University Islamabad, Pakistan
| | - A Said
- Department of Parasitology, University of Agriculture Faisalabad, Pakistan
| | - S Ullah
- Department of Biochemistry, Hazara University Mansehra, Pakistan
| | - A Ali
- Institute of Pathology and Diagnostic Medicine, Khyber Medical University, Peshawar, Pakistan
| | - M U Rahman
- Institute of Pathology and Diagnostic Medicine, Khyber Medical University, Peshawar, Pakistan
| | - A Zaman
- Faculty of Veterinary and Animal Sciences, Gomal University, Dera Ismail Khan, Pakistan
| | - H Bilal
- Second Affiliated Hospital of Shantou University Medical College, Shantou, China
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Thien L, Cham Y, Chan D, Khor H, Chan E, Chung B, Pang I, Ling H, Chow H, Shu F, Ho K, Tan C, Koh K, Oon Y, Said A, Fong A, Ong T. Association between the novel biomarker oxidised LDL/beta 2 glycoprotein I complexes and coronary artery calcification with cardiovascular outcomes – a long term prospective study. Prospective study. Int J Cardiol 2022. [DOI: 10.1016/j.ijcard.2022.10.032] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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10
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Foo V, Pang I, Shu F, Fong A, Chen L, Ho K, Ling H, Bhavnani C, Thien L, Chung B, Oon Y, Koh K, Tan C, Cham Y, Said A, Ong T. Safety and efficacy of renal denervation (RDN) in treatment of resistant hypertension: A single centre, 1 year observational study. Int J Cardiol 2022. [DOI: 10.1016/j.ijcard.2022.10.040] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Chow H, Ling H, Chan E, Chung B, Then L, Pang I, Khor H, Chan S, Tan C, Koh K, Cham Y, Said A, Fong A, Ong T, Oon Y. Prevalence of acid alpha-glucosidase (GAA) pseudodefiency allele and it's clinical significance among patients with cardiomyopathy. Int J Cardiol 2022. [DOI: 10.1016/j.ijcard.2022.10.038] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Chung B, Leong T, Chew L, Law W, Thien L, Pang I, Ling H, Chow H, Tan C, Koh K, Cham Y, Said A, Fong A, Ong T, Oon Y. Clinical characteristics of patients with cardiac amyloidosis in Sarawak: Comparison between transthyretin and light-chain amyloid cardiomyopathy. Int J Cardiol 2022. [DOI: 10.1016/j.ijcard.2022.10.067] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Rimbert A, Yeung M, Dalila N, Yu H, Loaiza N, Oldoni F, Van Der Graaf A, Wang S, Said A, Blauw L, Girardeau A, Bray L, Caillaud A, Bloks V, Marrec M, Moulin P, Rensen P, Van De Sluis B, Snieder H, Di Filippo M, Van Der Harst P, Tybjærg-Hansen A, Zimmerman P, Cariou B, Kuivenhoven J. GPR146 gene variants are associated with reduced plasma lipids and cardiovascular health: A novel role for GPR146 in hypolipidemia. Atherosclerosis 2022. [DOI: 10.1016/j.atherosclerosis.2022.06.216] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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Zarie E, WAHDAN KHALID, Wahba A, Heakal BH, Said A, Elbialy Z. Antimicrobial and antioxidant evaluation of newly synthesized nanomaterials of potential anticorrosion properties based on Co (II), Ni (II), Cu (II) and Zn (II) nano complexes of N-(p-methyl phenyl)-N-Benzoyl thiourea. Egypt J Chem 2022. [DOI: 10.21608/ejchem.2022.145699.6346] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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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15
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Mashar M, Said A, Hussain M, Eze V. Reporting acute trauma in a non-trauma centre: improving scan turnover time. Clin Radiol 2022. [DOI: 10.1016/j.crad.2022.01.023] [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: 11/24/2022]
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Bhavnani CD, Koh KT, Oon YY, Pang IX, Tan CT, Chen LS, Shu FEP, Ho KH, Cham YL, Ling HS, Said A, Thien LK, Chung BK, Fong AYY, Ong TK. Three year clinical outcomes of fractional flow reserve guided coronary revascularization using a monorail pressure sensor microcatheter. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehab849.123] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: None.
Background
Fractional flow reserve (FFR) has a Class 1A recommendation for guiding coronary revascularization in stable coronary artery disease. Deferral of revascularization for coronary stenosis of FFR >0.80 has shown favorable long-term outcomes, yet the adoption in real-world practice is limited. To date, there is no study on FFR guided PCI in the Malaysian population.
Objective
(1) To explore the 3-year clinical outcome of FFR guided coronary revascularization.
(2) To compare the clinical outcome of FFR guided deferral of coronary revascularization versus FFR guided revascularization. The primary outcome was a composite of all cause mortality, non fatal myocardial infarction (MI) and ischemia driven target vessel revascularization (TVR)
Results
Thirty-five patients were lost to follow up leaving 78 patients (95 vessels) for final analysis. The mean age was 59.3 ± 9.4 years old. 69 (88.5%) patients were male, 24 (30.7%) had diabetes mellitus, 58 (74.3%) had dyslipidemia, 61 (78.2%) had hypertension and 45 (57.7%) were smokers. The mean LVEF was 56.7 ± 14.7%. FFR to the LAD artery was performed in 64 (82%) patients. Based on the FFR value of 0.80, 47 (60.2%) patients had FFR guided deferral of coronary revascularization and 31 (39.7%) patients had FFR guided revascularization.
At 3 years, 11 (14.1%) patients met the primary outcome, mainly driven by all-cause mortality (11.5%). The primary outcome was met in 14.9% of FFR guided deferral versus 12.9% of FFR guided revascularization (p = 0.828). All-cause mortality was 12.7% in patients with FFR guided deferral compared to 9.7% in patients with FFR guided revascularization at 3 years (p = 0.712).
Cox proportional hazards model did not demonstrate any independent predictors associated with the primary outcome or all cause mortality.
Conclusion
FFR guided deferral of revascularization was safe and had comparable long-term clinical outcomes to FFR guided PCI. To our knowledge, this is the first study on long-term clinical outcome on FFR guided revascularization in Malaysia. Abstract Figure. Kaplan-Meier curve primary end point Abstract Figure. Kaplan-Meier curve all cause mortality
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Affiliation(s)
| | - K T Koh
- Sarawak Heart Center, Kuching, Malaysia
| | - Y Y Oon
- Sarawak Heart Center, Kuching, Malaysia
| | - I X Pang
- Sarawak Heart Center, Kuching, Malaysia
| | - C T Tan
- Sarawak Heart Center, Kuching, Malaysia
| | - L S Chen
- Sarawak Heart Center, Kuching, Malaysia
| | - F E P Shu
- Sarawak Heart Center, Kuching, Malaysia
| | - K H Ho
- Sarawak Heart Center, Kuching, Malaysia
| | - Y L Cham
- Sarawak Heart Center, Kuching, Malaysia
| | - H S Ling
- University Malaysia Sarawak (UNIMAS), Kuching, Malaysia
| | - A Said
- University Malaysia Sarawak (UNIMAS), Kuching, Malaysia
| | - L K Thien
- Sarawak Heart Center, Kuching, Malaysia
| | - B K Chung
- Sarawak Heart Center, Kuching, Malaysia
| | | | - T K Ong
- Sarawak Heart Center, Kuching, Malaysia
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Chow H, Ling H, Chung B, Then L, Pang I, Chen L, Bhavnani C, Tan C, Oon Y, Koh K, Cham Y, Fong A, Said A, Ong T. Utility of dutch lipid clinic network score to estimate prevalence of familial hypercholestrolemia in patients with ST-elevation myocardial infarction. Int J Cardiol 2021. [DOI: 10.1016/j.ijcard.2021.10.067] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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18
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Bhavnani C, Koh K, Thien L, Chung B, Pang I, Chen L, Ling H, Chow H, Tan C, Oon Y, Cham Y, Said A, Fong A, Ong T. Three-year clinical outcome of fractional flow reserve guided coronary revascularization with monorail pressure microcatheter. Int J Cardiol 2021. [DOI: 10.1016/j.ijcard.2021.10.034] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Chen L, Oon Y, Chung B, Thien L, Chow H, Pang I, Ling H, Chandan D, Tan C, Koh K, Said A, Cham Y, Alan A, Ong T. Clinical characteristics of patients with hereditary transthyretin amyloid cardiomyopathy (ATTR-CM) in Sarawak. Int J Cardiol 2021. [DOI: 10.1016/j.ijcard.2021.10.038] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Chung B, Oon Y, Thien L, Pang I, Chen L, Ling H, Chow H, Chandan D, Tan C, Koh K, Cham Y, Said A, Fong A, Ong T. Comparison of teicholz versus biplane simpson method in the assessment of left ventricular volumes and ejection fraction among healthy subjects. Int J Cardiol 2021. [DOI: 10.1016/j.ijcard.2021.10.122] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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21
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Chen L, Oon Y, Rawlings C, Sabeng K, Adam S, Lasep H, Pang I, Ling H, Chandan D, Tan C, Koh K, Cham Y, Said A, Fong A, Ong T. Semi-automated left ventricular endocardial detection versus hand-tracing in the measurement of left ventricular volumes and ejection fraction in daily clinical practice. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.097] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
The common method of assessing left ventricle (LV) volumes and ejection fraction (EF) is hand-tracing Biplane Simpson method. Alternatively, ultrasound vendors offer different semi-automated LV endocardial border detection software with anatomical intelligence to assess LV volumes and EF. By using speckle-tracking technique, this software tracks the LV endocardium throughout the cardiac cycle and computes the LV volumes in every image frame using the disk summation method from which a volume-curve is generated, and the EF is calculated using the maximum and minimum volumes obtained. Data on the performance of this method in comparison with the hand-tracing Biplane Simpson method in daily clinical practice is scarce.
Purpose
To determine the accuracy of LV volumes and EF using semi-automated LV endocardial detection tracing, and to compare the reproducibility of this method with the hand-tracing Biplane Simpson method, among operators with varying level of experience in echocardiography.
Methods
This was a single center retrospective observational study, conducted in year 2020. 127 patients, aged >18 years, who underwent clinically indicated transthoracic echocardiography were recruited. The echocardiographic images were analyzed independently in a blinded fashion by 3 operators – a sonographer, a fellow-in-training and a cardiologist specialized in echocardiography. The LV volumes and EF were first measured using hand-tracing Biplane Simpson method, then repeated using semi-automated tracing at a different time and the operator were blinded to the initial hand-tracing measurements.
Results
The mean age of patients was 50±16 years, 35.4% were male, mean body surface area was 1.62±0.18m2, 92.1% were in sinus rhythm, and 61.4% had good acoustic window. Table 1 shows the LV end-diastolic volume (EDV), end-systolic volume (ESV) and EF, measured using different method, by the 3 operators. There were excellent correlation and agreement between semi-automated tracing measurements and hand-tracing measurements of LV EDV (r=0.985, LOA [mean ± 1.96 SD] 16.9 ml, ICC 0.991), ESV (r=0.990, LOA 12.7 ml, ICC 0.994) and EF (r=0.962, LOA 7.43%, ICC 0.967) by experienced cardiologist. The limit of agreement (LOA) between cardiologist and sonographer for semi-automated tracing measurement of LV EDV, ESV and EF were 29.13 ml, 19.74 ml and 9.25% respectively, which was comparable with that of hand-tracing measurement. The agreement between cardiologist and fellow-in-training for semi-automated tracing measurement of LV volumes and EF was slightly better than hand-tracing method, with a LOA of 25.60 ml, 17.48 ml and 7.08%, for EDV, ESV and EF respectively (Table 2).
Conclusion
In daily clinical practice, measurement of LV volumes and EF using semi-automated LV endocardial tracing method is accurate and demonstrates comparable reproducibility with hand-tracing Biplane Simpson method among operators with different level of experience in echocardiography.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- L.S Chen
- Sarawak Heart Center, Department of Cardiology, Kota Samarahan, Malaysia
| | - Y.Y Oon
- Sarawak Heart Center, Department of Cardiology, Kota Samarahan, Malaysia
| | - C Rawlings
- Sarawak Heart Center, Department of Cardiology, Kota Samarahan, Malaysia
| | - K Sabeng
- Sarawak Heart Center, Department of Cardiology, Kota Samarahan, Malaysia
| | - S Adam
- Sarawak Heart Center, Department of Cardiology, Kota Samarahan, Malaysia
| | - H Lasep
- Sarawak Heart Center, Department of Cardiology, Kota Samarahan, Malaysia
| | - I.X Pang
- Sarawak Heart Center, Department of Cardiology, Kota Samarahan, Malaysia
| | - H.S Ling
- University Malaysia Sarawak, Faculty of Medicine and Health Sciences, Kota Samarahan, Malaysia
| | - D.B Chandan
- Sarawak Heart Center, Department of Cardiology, Kota Samarahan, Malaysia
| | - C.T Tan
- Sarawak Heart Center, Department of Cardiology, Kota Samarahan, Malaysia
| | - K.T Koh
- Sarawak Heart Center, Department of Cardiology, Kota Samarahan, Malaysia
| | - Y.L Cham
- Sarawak Heart Center, Department of Cardiology, Kota Samarahan, Malaysia
| | - A Said
- University Malaysia Sarawak, Faculty of Medicine and Health Sciences, Kota Samarahan, Malaysia
| | - A.Y.Y Fong
- Sarawak Heart Center, Department of Cardiology, Kota Samarahan, Malaysia
| | - T.K Ong
- Sarawak Heart Center, Department of Cardiology, Kota Samarahan, Malaysia
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22
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Said A, Lesurf R, Delfosse K, Oliveros W, Mattiolo K, Meng G, Mele M, Maass P, Ellis J, Scherer S, Mital S. FUNCTIONAL VALIDATION OF NON-CODING REGULATORY VARIANTS ASSOCIATED WITH CHILDHOOD CARDIOMYOPATHY. Can J Cardiol 2021. [DOI: 10.1016/j.cjca.2021.07.140] [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: 10/20/2022] Open
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23
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Li H, Zhang TT, Said A, Fabbris G, Mazzone DG, Yan JQ, Mandrus D, Halász GB, Okamoto S, Murakami S, Dean MPM, Lee HN, Miao H. Giant phonon anomalies in the proximate Kitaev quantum spin liquid α-RuCl 3. Nat Commun 2021; 12:3513. [PMID: 34112804 PMCID: PMC8192767 DOI: 10.1038/s41467-021-23826-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Accepted: 04/30/2021] [Indexed: 11/18/2022] Open
Abstract
The Kitaev quantum spin liquid epitomizes an entangled topological state, for which two flavors of fractionalized low-energy excitations are predicted: the itinerant Majorana fermion and the Z2 gauge flux. It was proposed recently that fingerprints of fractional excitations are encoded in the phonon spectra of Kitaev quantum spin liquids through a novel fractional-excitation-phonon coupling. Here, we detect anomalous phonon effects in α-RuCl3 using inelastic X-ray scattering with meV resolution. At high temperature, we discover interlaced optical phonons intercepting a transverse acoustic phonon between 3 and 7 meV. Upon decreasing temperature, the optical phonons display a large intensity enhancement near the Kitaev energy, JK~8 meV, that coincides with a giant acoustic phonon softening near the Z2 gauge flux energy scale. These phonon anomalies signify the coupling of phonon and Kitaev magnetic excitations in α-RuCl3 and demonstrates a proof-of-principle method to detect anomalous excitations in topological quantum materials.
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Affiliation(s)
- Haoxiang Li
- Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA
| | - T T Zhang
- Department of Physics, Tokyo Institute of Technology, Okayama, Meguro-ku, Tokyo, Japan
- Tokodai Institute for Element Strategy, Tokyo Institute of Technology, Nagatsuta, Midori-ku, Yokohama, Kanagawa, Japan
| | - A Said
- Advanced Photon Source, Argonne National Laboratory, Argonne, IL, USA
| | - G Fabbris
- Advanced Photon Source, Argonne National Laboratory, Argonne, IL, USA
| | - D G Mazzone
- Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, NY, USA
- Laboratory for Neutron Scattering and Imaging, Paul Scherrer Institut, Villigen, Switzerland
| | - J Q Yan
- Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA
| | - D Mandrus
- Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA
- Department of Materials Science and Engineering, the University of Tennessee at Knoxville, Knoxville, TN, USA
| | - Gábor B Halász
- Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA
| | - S Okamoto
- Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA
| | - S Murakami
- Department of Physics, Tokyo Institute of Technology, Okayama, Meguro-ku, Tokyo, Japan
- Tokodai Institute for Element Strategy, Tokyo Institute of Technology, Nagatsuta, Midori-ku, Yokohama, Kanagawa, Japan
| | - M P M Dean
- Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, NY, USA
| | - H N Lee
- Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA
| | - H Miao
- Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA.
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24
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Ullah N, Said A, Israr M, Rasool A, Akbar F, Ahmad S, Mehmood SA, Jabeen H, Islam M, Muhammad S, Noureenh S, Habiba U, Ahmed D, Shah M, Khan MAA, Siraj M. Effect of different protein based feed on the growth of mahseer. BRAZ J BIOL 2021; 82:e243670. [PMID: 34161428 DOI: 10.1590/1519-6984.243670] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Accepted: 10/21/2020] [Indexed: 11/22/2022] Open
Abstract
For the proper growth of fish, it is necessary to feed the fish with a proper and balanced diet. A study was conducted to find out the effect of different protein-based diets on fingerlings of Tor putitora (mahseer). A feed with dietary protein levels of 35%, 40%, 45%, and 50% were prepared. The effect of different protein-based feed on weight gain, standard growth rate (SGR), food conversion ratio (FCR), percent weight gain, food conversion efficiency (FCE), and protein efficiency ratio (PER) was studied. An increase was observed in the growth rate with an increase in protein concentration up to 45%. The fingerlings fed a 45% protein diet shown the highest growth, followed by 50%, 40%, and 35%. The SGR value was greatest for 45% protein diet (8.56) followed by 50% and 40%, while the least values were observed for 35% protein feed (1.57). The same trend was observed for FCE. The highest PER values was observed in fishes fed 45% protein-based feed (0.65) followed by 50% (0.56), 40% (0.38) and35% (0.17). The food conversion ratio was lowest for 45% protein diet (3.41), while the greatest for 35% protein feed (16.85). It was concluded that a 45% protein-based diet was the best feed formulation for higher production of Tor putitora. However, research on the same percentage of protein diet is recommended for yearlings.
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Affiliation(s)
- N Ullah
- University of Swat, Centre for Animal Sciences and Fisheries, Charbagh, Pakistan
| | - A Said
- University of Swat, Centre for Animal Sciences and Fisheries, Charbagh, Pakistan
| | - M Israr
- University of Swat, Department of Forensics Sciences, Charbagh, Pakistan
| | - A Rasool
- University of Swat, Centre for Biotechnology and Microbiology, Charbagh, Pakistan
| | - F Akbar
- University of Swat, Centre for Biotechnology and Microbiology, Charbagh, Pakistan
| | - S Ahmad
- Hazara University Mansehra, Department of Zoology, Mansehra, Pakistan
| | - S A Mehmood
- Hazara University Mansehra, Department of Zoology, Mansehra, Pakistan
| | - H Jabeen
- Women University Mardan, Department of Microbiology, Mardan, Pakistan
| | - M Islam
- Hazara University Mansehra, Department of Genetics, Mansehra, Pakistan
| | - S Muhammad
- University of Swat, Institute of Agricultural Sciences & Forestry, Charbagh, Pakistan
| | - S Noureenh
- University of Haripur, Department of Forestry and Wildlife Management, Haripur, Pakistan
| | - Ume Habiba
- University of Haripur, Department of Forestry and Wildlife Management, Haripur, Pakistan
| | - D Ahmed
- University of Haripur, Department of Medical Lab Technology, Haripur, Pakistan
| | - M Shah
- University of Swat, Centre for Animal Sciences and Fisheries, Charbagh, Pakistan
| | - M A A Khan
- University of Peshawar: Peshawar, Centre of Biotechnology and Microbiology, Pakistan
| | - M Siraj
- Department of Zoology, Abbottabad University of Science & Technology, Pakistan
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Sultan A, Abd Al-Karem H, Said A, M. El-Garhy A. EFFECT OF COLLOID VS CRYSTALLOID PRELOAD ON HEMODYNAMIC STABILITY IN ELDERLY PATIENTS UNDERGOING LOWER LIMB ORTHOPEDIC SURGERY UNDER SPINAL ANESTHESIA. Al-Azhar Medical Journal 2021; 50:1271-1280. [DOI: 10.21608/amj.2021.158299] [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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26
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Amin YA, Said A. The Addition of Chitosan to GnRH Analog Induces Ovarian Resumption and Improves Conception Rates in Buffaloes. Trop Anim Sci J 2021. [DOI: 10.5398/tasj.2021.44.1.1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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27
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Khalifa MMM, Said A, Mortada A, Shehata H. QRS Duration as a Predictor of Left Ventricular Outflow Tract Velocity Time Integral in Patient with Cardiac Resynchronization Therapy. J Cardiovasc Echogr 2020; 30:68-74. [PMID: 33282643 PMCID: PMC7706376 DOI: 10.4103/jcecho.jcecho_66_19] [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: 11/23/2019] [Revised: 12/07/2019] [Accepted: 03/31/2020] [Indexed: 11/04/2022] Open
Abstract
Background Cardiac resynchronization therapy (CRT) has a morbidity and mortality benefits in moderate to severe heart failure. It reduces mortality and hospitalization and improves cardiac function. It can be used according to the European guidelines in severely depressed left ventricular ejection fraction (i.e., ≤35%) and complete left bundle branch block. However, 30% of patients may show no benefit from CRT therapy. Therefore, prediction of CRT response seems to be an important subject for study in the current researches. We aimed to study the correlation between Surface ECG QRS complex duration (QRS) duration and cardiac output measured by ventricular outflow tract velocity time integral (LVOT VTI) as a predictor of response in patients with CRT implantation. Methods We studied 100 consecutive patients prospectively with biventricular pacing system. The patients were studied at the pacemaker follow-up clinic. Each patient was subjected to: Full medical history, general and local examination, a 12 lead electrocardiogram and QRS duration in ms was measured. All patients were subjected to a focused transthoracic echocardiographic examination in which a parasternal long axis view was obtained to measure the diameter of the LVOT diameter in mid-systole. The LVOT VTI was measured by pulsed-wave Doppler in the LVOT using a 2-mm sample volume positioned just proximal to the aortic valve in the apical five chamber view. Results We found a statistically significant difference between CRT responders and nonresponders as regards age, body surface area (BSA), time since CRT implantation and smoking status (P = 0.018, 0.039, 0.002, <0.001). There was negative significant correlation between QRS duration and LVOT VTI and stroke volume index. The optimal cut off values for optimal response to CRT using receiver operating characteristics curves were 130 ms for postimplant QRS duration and 17.1 cm for LVOT VTI. We also found a significant difference between responders and nonresponders as regard CO. It was higher in responders (5.97 vs. 3.34, P < 0.001). Conclusion CRT response is more in patients with lower BSA, and without previous history of ischemic heart disease or smoking. There is a significant negative correlation between QRS duration and LVOT VTI.
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Affiliation(s)
| | - Ahmed Said
- Department of Cardiology, Ain Shams University Hospital, Cairo, Egypt
| | - Ayman Mortada
- Department of Cardiology, Ain Shams University Hospital, Cairo, Egypt
| | - Hassan Shehata
- Department of Cardiology, Ain Shams University Hospital, Cairo, Egypt
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Said A, Van De Vegte Y, Verweij N, Van Der Harst P. Associations of observational and genetically determined caffeine intake with coronary artery disease and diabetes. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.1493] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Caffeine is the most widely consumed psychostimulant and is associated with lower risk of coronary artery disease (CAD) and type 2 diabetes (T2D). However, whether these associations are causal remains unknown.
Objectives
This study aimed to identify genetic variants associated with caffeine intake, and to investigate possible causal links between genetically determined caffeine intake and CAD or T2D. Additionally, we aimed to replicate previous observational findings between caffeine intake and CAD or T2D.
Methods
Genome wide associated studies (GWAS) were performed on caffeine intake from coffee, tea or both in 407,072 UK Biobank participants. Identified variants were used in a two-sample Mendelian randomization (MR) approach to investigate evidence for causal links between caffeine intake and CAD in CARDIoGRAMplusC4D (60,801 cases; 123,504 controls) or T2D in DIAGRAM (26,676 cases; 132,532 controls). Observational associations were tested within UK Biobank using Cox regression analyses.
Results
Moderate observational caffeine intakes from coffee or tea were associated with lower risks of CAD or T2D compared to no or high intake, with the lowest risks at intakes of 120–180 mg/day from coffee for CAD (HR=0.77 [95% CI: 0.73–0.82; P<1e-16]), and 300–360 mg/day for T2D (HR=0.76 [95% CI: 0.67–0.86]; P=1.57e-5). GWAS identified 51 novel genetic loci associated with caffeine intake, enriched for central nervous system genes. In contrast to observational analyses, MR analyses in CARDIoGRAMplusC4D and DIAGRAM yielded no evidence for causal links between caffeine intake and the development of CAD or T2D.
Conclusions
MR analyses indicate caffeine intake might not protect against CAD or T2D, despite protective associations in observational analyses.
Manhattan_plot_CaffeineIntake
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- A Said
- University Medical Center Groningen, Groningen, Netherlands (The)
| | - Y.J Van De Vegte
- University Medical Center Groningen, Groningen, Netherlands (The)
| | - N Verweij
- University Medical Center Groningen, Groningen, Netherlands (The)
| | - P Van Der Harst
- University Medical Center Groningen, Groningen, Netherlands (The)
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29
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Upton MH, Zhang J, Zheng H, Said A, Mitchell JF. Electronic coupling in square planar La 4Ni 3O 8. J Phys Condens Matter 2020; 32:425503. [PMID: 32629441 DOI: 10.1088/1361-648x/aba314] [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] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
A study of a dd excitation in La4Ni3O8 (La-438) using x-ray absorption scattering and resonant inelastic x-ray scattering (RIXS) at the Ni K-edge is presented. The incident energy dependence of this dd excitation shows a maximum at the 1s → 4p π transition. Its intensity at the main edge is proportional to the amount of incident x-ray polarization parallel to the c-axis. These observations suggest that the RIXS process underlying this excitation includes a strong Ni 3d-Ni 4p Coulomb interaction and excludes the '4p-as-spectator' approximation. The dominant Ni 3d Coulomb interaction is with Ni 4p π with limited or no interaction with the Ni 4p σ. An insulating gap closing is observed as a function of temperature.
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Affiliation(s)
- M H Upton
- Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, United States of America
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Kuan PX, Chan WK, Chua PF, Yeo J, Sapri FE, Bujang MA, Said A. Lifestyle factors associated with cardiovascular risk among healthcare workers from the tertiary hospitals in Sarawak. Malays Fam Physician 2020; 15:15-22. [PMID: 32284800 PMCID: PMC7136671] [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] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
INTRODUCTION A cross-sectional study is used to evaluate the lifestyle factors associated with cardiovascular disease (CVD) risk among healthcare workers in tertiary hospitals in Sarawak, Malaysia. METHODS A questionnaire-based survey using the Simple Lifestyle Indicator Questionnaire (SLIQ) was administered to, and anthropometric measurements were collected from, 494 healthcare workers. RESULTS The mean age of the subjects was 32.4±8.4, with a range of 19 to 59 years. The subjects were from the allied health (45.5%), management and professional (25.1%) and executive (29.4%) fields. Overall, 47.4% of the subjects were of normal weight, 30.2% were overweight, 17.2% were obese and 5.2% were underweight. The mean number of working hours per week for the subjects was 47.6±14.0 with the highest working hours found among the management and professional group, followed by the executive and allied health groups. Overall, 39.7% of the healthcare workers worked office hours, 36.6% worked within the shift system, 20.9% worked office hours and were on-call and the remaining 2.8% worked a mixture of office hours and shifts. Based on the SLIQ score, 58.1% were classified as at intermediate risk for CVD, 38.5% were in the healthy category and 3.4% were in the unhealthy category. Factors associated with a healthier lifestyle were being female (Odds Ratio [OR]= 12.1; CI=3.2-46.4), professional (mean score= 6.70), in the allied health group (mean score=7.33) and in the normal BMI group (OR= 9.3, CI= 1.8-47.0). CONCLUSION In our study, healthcare workers had an intermediate risk of developing CVD in the future. Thus, there is a need to intervene in the lifestyle factors contributing to CVD.
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Affiliation(s)
- P X Kuan
- Clinical Research Centre (CRC) Sungai Buloh Hospital, Jalan Hospital 47000 Selangor, Malaysia
| | - W K Chan
- Department of Anaesthesiology and Intensive Care, Sarawak General Hospital, Jalan Hospital, 93586 Kuching, Sarawak, Malaysia
| | - P F Chua
- Department of Paraclinical Science Faculty of Medicine and Health Sciences, Universiti Malaysia Sarawak, Malaysia
| | - Jjp Yeo
- Department of Cardiology, Sarawak General Hospital Heart Centre, Jalan Lingkaran Luar Kuching, 94300 Kota Samarahan, Sarawak, Malaysia
| | - F E Sapri
- Clinical Research Centre, Sarawak General Hospital, Jalan Hospital 93586 Kuching, Sarawak, Malaysia
| | - M A Bujang
- Clinical Research Centre, Sarawak General Hospital, Jalan Hospital, 93586 Kuching, Sarawak, Malaysia
| | - A Said
- Faculty of Medicine and Health Sciences, Universiti Malaysia Sarawak, 94300 Kota Samarahan Sarawak, Malaysia
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M. Hassan A, Heakal B, Said A, Aboulthana W, Abdelmoaz M. Comparative study for synthesis of novel Mn (II), Co (II), Ni (II), Cu (II), Zn (II) and Zr (IV)complexes under conventional methods and microwave irradiation and evaluation of their antimicrobial and Anticancer activity. Egypt J Chem 2020. [DOI: 10.21608/ejchem.2020.21048.2255] [Citation(s) in RCA: 1] [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: 10/25/2022]
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32
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Tan CT, Koh KT, Onn YY, Ho KH, Said A, Mohd Amin NH, Shu FEP, Khiew NZ, Cham YL, Fong AYY, Ong TK, Eng SY, Lee ZY, Madzlan N. P13 Safety and efficacy of sacubitril-valsartan initiation during and after acute decompensated heart failure with reduced ejection fraction. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehz872.018] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
The PIONEER-HF trial has demonstrated the safety of Sacubitril-Valsartan initiation during acute decompensated heart failure (ADHF) compared to Enalapril. The efficacy outcome was also addressed by the surrogate end point of reduction in NT-proBNP. However, the safety and efficacy of Sacubitril-Valsartan initiation during ADHF compared to initiation after ADHF was unknown.
Objectives
(1) To compare the safety and efficacy of Sacubitril-Valsartan initiation during ADHF(inpatient) to initiation after ADHF(outpatient). (2) To explore the echocardiogram parameters associated with Sacubitril-Valsartan initiation during ADHF(inpatient) versus after ADHF(outpatient).
Methods
We enrolled patients diagnosed with heart failure with reduced ejection fraction (HFrEF) initiated on Sacubitril-Valsartan from February 2017 to December 2018. The baseline characteristics, echocardiogram parameters (changes in LVEF and positive remodeling), composite safety outcomes (hypotension, interruption of Sacubitril-Valsartan and worsening of renal function), and efficacy outcomes (cardiac death, readmission for heart failure) were compared.
Results
Thirty-seven patients were identified out of which 21 patients started Entresto after ADHF (outpatient group) and 16 patients during ADHF (inpatient group). The median follow-up duration was 196 days (IQR: 105 to 328days). The baseline characteristics were similar between the 2 groups. Outpatient groups achieved a significantly higher maximally tolerable dose of Sacubitril-Valsartan compared to inpatient group (median 400mg/day versus 200mg/day, p = 0.008) despite a similar starting dose (median 100mg/day versus 100mg/day, p = 0.127). The composite efficacy outcomes were similar between the 2 groups (4.8% versus 18.8%, p = 0.296). The composite safety outcome was similar between the groups (18.8% versus 4.8%, HR5.70 p = 0.054, 95%CI 0.967 to 33.60). Both groups achieved a significant improvement in LVEF after initiation of Sacubitril-Valsartan therapy: mean LVEF 23.44 ± 7.88% to 34.30 ± 13.88% (p = 0.001) in outpatient group; mean LVEF 22.99 ± 11.31% to 38.81 ± 13.91% (p = 0.002) in inpatient group. Reverse remodeling (reduction of LVESV≥15%) was similar between the 2 groups (61.9% versus 50.0%, p = 0.506).
Conclusions
Among patients with HFrEF in ADHF, initiation of Sacubitril-Valsartan therapy during or after ADHF led to similar safety and efficacy. Overall, there was a significant improvement in LVEF and positive remodeling of the LV regardless of the timing of initiation of therapy.
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Affiliation(s)
- C T Tan
- Sarawak General Hospital, Kuching, Malaysia
| | - K T Koh
- Sarawak General Hospital, Kuching, Malaysia
| | - Y Y Onn
- Sarawak General Hospital, Kuching, Malaysia
| | - K H Ho
- Sarawak General Hospital, Kuching, Malaysia
| | - A Said
- Sarawak General Hospital, Kuching, Malaysia
| | | | - F E P Shu
- Sarawak General Hospital, Kuching, Malaysia
| | - N Z Khiew
- Sarawak General Hospital, Kuching, Malaysia
| | - Y L Cham
- Sarawak General Hospital, Kuching, Malaysia
| | - A Y Y Fong
- Sarawak General Hospital, Kuching, Malaysia
| | - T K Ong
- Sarawak General Hospital, Kuching, Malaysia
| | - S Y Eng
- Sarawak General Hospital, Kuching, Malaysia
| | - Z Y Lee
- Sarawak General Hospital, Kuching, Malaysia
| | - N Madzlan
- Sarawak General Hospital, Kuching, Malaysia
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Tan C, Koh K, Said A, Onn Y, Ho K, Shu F, Khiew N, Cham Y, Fong A, Ong T, Mohd Amin N, Eng S, Lee Z, Madzlan N. Safety and Efficacy of Sacubitril-Valsartan Initiation During and After Acute Decompensated Heart Failure with Reduced Ejection Fraction. Int J Cardiol 2019. [DOI: 10.1016/j.ijcard.2019.11.013] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Shu F, Ho K, Tan C, Koh K, Oon Y, Bhavani C, Cham Y, Said A, Khiew N, Fong A, Ong T. Infective Endocarditis at A Tertiary Referral Centre in A Developing Country: Aetiology, Microbology and Risk Factors for Embolic Complications and Mortality. Int J Cardiol 2019. [DOI: 10.1016/j.ijcard.2019.11.027] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Oon Y, Koh K, Ho K, Tan C, Shu F, Said A, Cham Y, Khiew N, Mohd Amin N, Fong A, Ong T. Global Longitudinal Strain Predicts Adverse Left Ventricular Remodeling After ST-segment Elevation Myocardial Infarction. Int J Cardiol 2019. [DOI: 10.1016/j.ijcard.2019.11.006] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Tan C, Koh K, Said A, Onn Y, Ho K, Shu F, Khiew N, Cham Y, Fong A, Ong T, Mohd Amin N, Chew S. Impact of Visual Assessment of Stress Cardiac Magnetic Resonance Imaging in Patients with Known or Suspected Coronary Artery Disease in Real World Practice: A Single Centre Experience. Int J Cardiol 2019. [DOI: 10.1016/j.ijcard.2019.11.023] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Rogers SC, Dosier LB, McMahon TJ, Zhu H, Timm D, Zhang H, Herbert J, Atallah J, Palmer GM, Cook A, Ernst M, Prakash J, Terng M, Towfighi P, Doctor R, Said A, Joens MS, Fitzpatrick JAJ, Hanna G, Lin X, Reisz JA, Nemkov T, D’Alessandro A, Doctor A. Red blood cell phenotype fidelity following glycerol cryopreservation optimized for research purposes. PLoS One 2018; 13:e0209201. [PMID: 30576340 PMCID: PMC6303082 DOI: 10.1371/journal.pone.0209201] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Accepted: 12/01/2018] [Indexed: 12/20/2022] Open
Abstract
Intact red blood cells (RBCs) are required for phenotypic analyses. In order to allow separation (time and location) between subject encounter and sample analysis, we developed a research-specific RBC cryopreservation protocol and assessed its impact on data fidelity for key biochemical and physiological assays. RBCs drawn from healthy volunteers were aliquotted for immediate analysis or following glycerol-based cryopreservation, thawing, and deglycerolization. RBC phenotype was assessed by (1) scanning electron microscopy (SEM) imaging and standard morphometric RBC indices, (2) osmotic fragility, (3) deformability, (4) endothelial adhesion, (5) oxygen (O2) affinity, (6) ability to regulate hypoxic vasodilation, (7) nitric oxide (NO) content, (8) metabolomic phenotyping (at steady state, tracing with [1,2,3-13C3]glucose ± oxidative challenge with superoxide thermal source; SOTS-1), as well as in vivo quantification (following human to mouse RBC xenotransfusion) of (9) blood oxygenation content mapping and flow dynamics (velocity and adhesion). Our revised glycerolization protocol (40% v/v final) resulted in >98.5% RBC recovery following freezing (-80°C) and thawing (37°C), with no difference compared to the standard reported method (40% w/v final). Full deglycerolization (>99.9% glycerol removal) of 40% v/v final samples resulted in total cumulative lysis of ~8%, compared to ~12-15% with the standard method. The post cryopreservation/deglycerolization RBC phenotype was indistinguishable from that for fresh RBCs with regard to physical RBC parameters (morphology, volume, and density), osmotic fragility, deformability, endothelial adhesivity, O2 affinity, vasoregulation, metabolomics, and flow dynamics. These results indicate that RBC cryopreservation/deglycerolization in 40% v/v glycerol final does not significantly impact RBC phenotype (compared to fresh cells).
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Affiliation(s)
- Stephen C. Rogers
- Department of Pediatrics, Divisions of Critical Care Medicine, Washington University in Saint Louis, School of Medicine, Saint Louis, MO, United States of America
- Department of Biochemistry & Molecular Biophysics, Washington University in Saint Louis, School of Medicine, Saint Louis, MO, United States of America
| | - Laura B. Dosier
- Department of Pediatrics, Duke University School of Medicine, Durham, NC, United States of America
| | - Timothy J. McMahon
- Department Medicine, Duke University School of Medicine, Durham, NC, United States of America
- Departments of Medicine, Durham VA Medical Center, Durham, NC, United States of America
| | - Hongmei Zhu
- Department Medicine, Duke University School of Medicine, Durham, NC, United States of America
- Departments of Medicine, Durham VA Medical Center, Durham, NC, United States of America
| | - David Timm
- Department of Pediatrics, Divisions of Critical Care Medicine, Washington University in Saint Louis, School of Medicine, Saint Louis, MO, United States of America
| | - Hengtao Zhang
- Department of Radiation Oncology, Duke Univ. School of Medicine, Durham, NC, United States of America
| | - Joseph Herbert
- Department of Radiation Oncology, Duke Univ. School of Medicine, Durham, NC, United States of America
| | - Jacqueline Atallah
- Department Medicine, Duke University School of Medicine, Durham, NC, United States of America
| | - Gregory M. Palmer
- Department of Radiation Oncology, Duke Univ. School of Medicine, Durham, NC, United States of America
| | - Asa Cook
- Department of Pediatrics, Divisions of Critical Care Medicine, Washington University in Saint Louis, School of Medicine, Saint Louis, MO, United States of America
| | - Melanie Ernst
- Department of Pediatrics, Divisions of Critical Care Medicine, Washington University in Saint Louis, School of Medicine, Saint Louis, MO, United States of America
| | - Jaya Prakash
- Department of Pediatrics, Divisions of Critical Care Medicine, Washington University in Saint Louis, School of Medicine, Saint Louis, MO, United States of America
| | - Mark Terng
- Department of Pediatrics, Divisions of Critical Care Medicine, Washington University in Saint Louis, School of Medicine, Saint Louis, MO, United States of America
| | - Parhom Towfighi
- Department of Pediatrics, Divisions of Critical Care Medicine, Washington University in Saint Louis, School of Medicine, Saint Louis, MO, United States of America
| | - Reid Doctor
- Department of Pediatrics, Divisions of Critical Care Medicine, Washington University in Saint Louis, School of Medicine, Saint Louis, MO, United States of America
| | - Ahmed Said
- Department of Pediatrics, Divisions of Critical Care Medicine, Washington University in Saint Louis, School of Medicine, Saint Louis, MO, United States of America
| | - Matthew S. Joens
- Washington University Center for Cellular Imaging, Washington University in Saint Louis, School of Medicine, Saint Louis, MO, United States of America
| | - James A. J. Fitzpatrick
- Washington University Center for Cellular Imaging, Washington University in Saint Louis, School of Medicine, Saint Louis, MO, United States of America
- Departments of Neuroscience and Cell Biology & Physiology, Washington University in Saint Louis, School of Medicine, Saint Louis, MO, United States of America
| | - Gabi Hanna
- Department of Radiation Oncology, Duke Univ. School of Medicine, Durham, NC, United States of America
| | - Xue Lin
- Department of Pediatrics, Divisions of Critical Care Medicine, Washington University in Saint Louis, School of Medicine, Saint Louis, MO, United States of America
| | - Julie A. Reisz
- Department of Biochemistry, University of Colorado Denver—Aurora, CO, United States of America
| | - Travis Nemkov
- Department of Biochemistry, University of Colorado Denver—Aurora, CO, United States of America
| | - Angelo D’Alessandro
- Department of Biochemistry, University of Colorado Denver—Aurora, CO, United States of America
| | - Allan Doctor
- Department of Pediatrics, Divisions of Critical Care Medicine, Washington University in Saint Louis, School of Medicine, Saint Louis, MO, United States of America
- Department of Biochemistry & Molecular Biophysics, Washington University in Saint Louis, School of Medicine, Saint Louis, MO, United States of America
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Shu FEP, Nor Hanim MA, Said A, Ho KH, Tan CT, Koh KT, Oon YY, Voon CY, Cham YL, Khiew NZ, Fong AYY, Ong TK, Liew HB. P4690Impact of myocardial viability assessed by delayed enhancement cardiovascular magnetic resonance on clinical outcomes in real world practice. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p4690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- F E P Shu
- Sarawak Heart Centre, KOTA SAMARAHAN, Malaysia
| | | | - A Said
- Sarawak Heart Centre, KOTA SAMARAHAN, Malaysia
| | - K H Ho
- Sarawak Heart Centre, KOTA SAMARAHAN, Malaysia
| | - C T Tan
- Sarawak Heart Centre, KOTA SAMARAHAN, Malaysia
| | - K T Koh
- Sarawak Heart Centre, KOTA SAMARAHAN, Malaysia
| | - Y Y Oon
- Sarawak Heart Centre, KOTA SAMARAHAN, Malaysia
| | - C Y Voon
- Sarawak Heart Centre, KOTA SAMARAHAN, Malaysia
| | - Y L Cham
- Sarawak Heart Centre, KOTA SAMARAHAN, Malaysia
| | - N Z Khiew
- Sarawak Heart Centre, KOTA SAMARAHAN, Malaysia
| | - A Y Y Fong
- Sarawak Heart Centre, KOTA SAMARAHAN, Malaysia
| | - T K Ong
- Sarawak Heart Centre, KOTA SAMARAHAN, Malaysia
| | - H B Liew
- Hospital Queen Elizabeth II, Cardiology, Kota Kinabalu, Malaysia
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Seleem AA, Sultan ARS, Said A, Shahat MM, Moustafa MA. Localization of connective tissue growth factor (CTGF) and transforming growth factor beta-2 (TGF-β2) during eye development of four species of birds. J Histotechnol 2018. [DOI: 10.1080/01478885.2018.1475861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Affiliation(s)
- Amin A. Seleem
- Biology Department, Faculty of Science and Arts, Taibah University, Allula, Kingdom of Saudi Arabia
- Zoology Department, Faculty of Science, Sohag University, Sohag, Egypt
| | | | - Ahmed Said
- Zoology Department, Faculty of Science, Al-Azhar University, Assiut, Egypt
| | - Mohamed M. Shahat
- Zoology Department, Faculty of Science, Al-Azhar University, Assiut, Egypt
| | - Mohsen A. Moustafa
- Zoology Department, Faculty of Science, Al-Azhar University, Assiut, Egypt
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Amdani SM, Kim HS, Orvedahl A, John AO, Said A, Simpson K. Successful treatment of fulminant neonatal enteroviral myocarditis in monochorionic diamniotic twins with cardiopulmonary support, intravenous immunoglobulin and pocapavir. BMJ Case Rep 2018; 2018:bcr-2017-224133. [PMID: 29776940 DOI: 10.1136/bcr-2017-224133] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Neonatal cardiogenic shock most commonly occurs due to critical congenital heart disease, sepsis, metabolic disorder or arrhythmias. In particular, enterovirus infections are common in the neonatal period, and patients can present with fulminant myocarditis. Early recognition is imperative due to its high morbidity and mortality without prompt and aggressive treatment. We present the successful treatment of fulminant neonatal enteroviral myocarditis in a pair of monochorionic diamniotic twins with cardiopulmonary support, intravenous immunoglobulin and pocapavir, an enteroviral capsid inhibitor. The twins took an almost exact parallel hospital course, including day of extracorporeal membrane oxygenation (ECMO) cannulation, day of ECMO decannulation, improvement of cardiac function, discharge and status at follow-up. While it was difficult to assess the relative contribution of each intervention, our case shows promise in the use of pocapavir for treatment of severe enteroviral infections. Remarkably, both twins demonstrated remarkable recovery within 2 weeks, underscoring that early aggressive cardiopulmonary support, and potentially pocapavir, contributed to their recovery.
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Affiliation(s)
- Shahnawaz M Amdani
- Division of Pediatric Cardiology, St Louis Children's Hospital, Washington University School of Medicine, St Louis, Missouri, USA
| | - Hannah S Kim
- Division of Pediatric Cardiology, St Louis Children's Hospital, Washington University School of Medicine, St Louis, Missouri, USA
| | - Anthony Orvedahl
- Division of Pediatric Infectious Diseases, St Louis Children's Hospital, Washington University School of Medicine, St Louis, Missouri, USA
| | - Audrey Odom John
- Division of Pediatric Infectious Diseases, St Louis Children's Hospital, Washington University School of Medicine, St Louis, Missouri, USA
| | - Ahmed Said
- Division of Pediatric Cardiology, St Louis Children's Hospital, Washington University School of Medicine, St Louis, Missouri, USA
| | - Kathleen Simpson
- Division of Pediatric Cardiology, St Louis Children's Hospital, Washington University School of Medicine, St Louis, Missouri, USA
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Salla M, Aguayo-Ortiz R, Danmaliki GI, Zare A, Said A, Moore J, Pandya V, Manaloor R, Fong S, Blankstein AR, Gibson SB, Garcia LR, Meier P, Bhullar KS, Hubbard BP, Fiteh Y, Vliagoftis H, Goping IS, Brocks D, Hwang P, Velázquez-Martínez CA, Baksh S. Identification and Characterization of Novel Receptor-Interacting Serine/Threonine-Protein Kinase 2 Inhibitors Using Structural Similarity Analysis. J Pharmacol Exp Ther 2018; 365:354-367. [PMID: 29555876 DOI: 10.1124/jpet.117.247163] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Accepted: 02/26/2018] [Indexed: 12/16/2022] Open
Abstract
Receptor-interacting protein kinase 2 (RIP2 or RICK, herein referred to as RIPK2) is linked to the pathogen pathway that activates nuclear factor κ-light-chain-enhancer of activated B cells (NFκB) and autophagic activation. Using molecular modeling (docking) and chemoinformatics analyses, we used the RIPK2/ponatinib crystal structure and searched in chemical databases for small molecules exerting binding interactions similar to those exerted by ponatinib. The identified RIPK2 inhibitors potently inhibited the proliferation of cancer cells by > 70% and also inhibited NFκB activity. More importantly, in vivo inhibition of intestinal and lung inflammation rodent models suggests effectiveness to resolve inflammation with low toxicity to the animals. Thus, our identified RIPK2 inhibitor may offer possible therapeutic control of inflammation in diseases such as inflammatory bowel disease, asthma, cystic fibrosis, primary sclerosing cholangitis, and pancreatitis.
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Affiliation(s)
- Mohamed Salla
- Departments of Biochemistry (M.S., G.I.D., A.S., J.M., V.P., I.S.G., P.H., S.B.), Pediatrics (A.Z., R.M., S.F., S.B.), Pharmacology (K.S.B., B.P.H.), Oncology (S.B.) Medicine (Y.F., H.V., P.H.), and Faculty of Pharmacy and Pharmaceutical Sciences (R.A.-O., D.B., C.A.-V.M.), University of Alberta, Edmonton, Alberta, Canada; Facultad de Química, Departamento de Farmacia, Universidad Nacional Autónoma de México, Mexico City, Mexico (R.A.-O.); Departments of Biochemistry and Medical Genetics and Immunology, University of Manitoba, Winnipeg, Manitoba, Canada (A.R.B., S.B.G.); Breakthrough Breast Cancer Research Center Chester Beatty Laboratories, London, United Kingdom (L.R.G., P.M.); Cancer Research Institute of Northern Alberta, Edmonton, Alberta, Canada (S.B.); and Women and Children's Health Research Institute, Edmonton, Alberta, Canada (S.B.)
| | - Rodrigo Aguayo-Ortiz
- Departments of Biochemistry (M.S., G.I.D., A.S., J.M., V.P., I.S.G., P.H., S.B.), Pediatrics (A.Z., R.M., S.F., S.B.), Pharmacology (K.S.B., B.P.H.), Oncology (S.B.) Medicine (Y.F., H.V., P.H.), and Faculty of Pharmacy and Pharmaceutical Sciences (R.A.-O., D.B., C.A.-V.M.), University of Alberta, Edmonton, Alberta, Canada; Facultad de Química, Departamento de Farmacia, Universidad Nacional Autónoma de México, Mexico City, Mexico (R.A.-O.); Departments of Biochemistry and Medical Genetics and Immunology, University of Manitoba, Winnipeg, Manitoba, Canada (A.R.B., S.B.G.); Breakthrough Breast Cancer Research Center Chester Beatty Laboratories, London, United Kingdom (L.R.G., P.M.); Cancer Research Institute of Northern Alberta, Edmonton, Alberta, Canada (S.B.); and Women and Children's Health Research Institute, Edmonton, Alberta, Canada (S.B.)
| | - Gaddafi I Danmaliki
- Departments of Biochemistry (M.S., G.I.D., A.S., J.M., V.P., I.S.G., P.H., S.B.), Pediatrics (A.Z., R.M., S.F., S.B.), Pharmacology (K.S.B., B.P.H.), Oncology (S.B.) Medicine (Y.F., H.V., P.H.), and Faculty of Pharmacy and Pharmaceutical Sciences (R.A.-O., D.B., C.A.-V.M.), University of Alberta, Edmonton, Alberta, Canada; Facultad de Química, Departamento de Farmacia, Universidad Nacional Autónoma de México, Mexico City, Mexico (R.A.-O.); Departments of Biochemistry and Medical Genetics and Immunology, University of Manitoba, Winnipeg, Manitoba, Canada (A.R.B., S.B.G.); Breakthrough Breast Cancer Research Center Chester Beatty Laboratories, London, United Kingdom (L.R.G., P.M.); Cancer Research Institute of Northern Alberta, Edmonton, Alberta, Canada (S.B.); and Women and Children's Health Research Institute, Edmonton, Alberta, Canada (S.B.)
| | - Alaa Zare
- Departments of Biochemistry (M.S., G.I.D., A.S., J.M., V.P., I.S.G., P.H., S.B.), Pediatrics (A.Z., R.M., S.F., S.B.), Pharmacology (K.S.B., B.P.H.), Oncology (S.B.) Medicine (Y.F., H.V., P.H.), and Faculty of Pharmacy and Pharmaceutical Sciences (R.A.-O., D.B., C.A.-V.M.), University of Alberta, Edmonton, Alberta, Canada; Facultad de Química, Departamento de Farmacia, Universidad Nacional Autónoma de México, Mexico City, Mexico (R.A.-O.); Departments of Biochemistry and Medical Genetics and Immunology, University of Manitoba, Winnipeg, Manitoba, Canada (A.R.B., S.B.G.); Breakthrough Breast Cancer Research Center Chester Beatty Laboratories, London, United Kingdom (L.R.G., P.M.); Cancer Research Institute of Northern Alberta, Edmonton, Alberta, Canada (S.B.); and Women and Children's Health Research Institute, Edmonton, Alberta, Canada (S.B.)
| | - Ahmed Said
- Departments of Biochemistry (M.S., G.I.D., A.S., J.M., V.P., I.S.G., P.H., S.B.), Pediatrics (A.Z., R.M., S.F., S.B.), Pharmacology (K.S.B., B.P.H.), Oncology (S.B.) Medicine (Y.F., H.V., P.H.), and Faculty of Pharmacy and Pharmaceutical Sciences (R.A.-O., D.B., C.A.-V.M.), University of Alberta, Edmonton, Alberta, Canada; Facultad de Química, Departamento de Farmacia, Universidad Nacional Autónoma de México, Mexico City, Mexico (R.A.-O.); Departments of Biochemistry and Medical Genetics and Immunology, University of Manitoba, Winnipeg, Manitoba, Canada (A.R.B., S.B.G.); Breakthrough Breast Cancer Research Center Chester Beatty Laboratories, London, United Kingdom (L.R.G., P.M.); Cancer Research Institute of Northern Alberta, Edmonton, Alberta, Canada (S.B.); and Women and Children's Health Research Institute, Edmonton, Alberta, Canada (S.B.)
| | - Jack Moore
- Departments of Biochemistry (M.S., G.I.D., A.S., J.M., V.P., I.S.G., P.H., S.B.), Pediatrics (A.Z., R.M., S.F., S.B.), Pharmacology (K.S.B., B.P.H.), Oncology (S.B.) Medicine (Y.F., H.V., P.H.), and Faculty of Pharmacy and Pharmaceutical Sciences (R.A.-O., D.B., C.A.-V.M.), University of Alberta, Edmonton, Alberta, Canada; Facultad de Química, Departamento de Farmacia, Universidad Nacional Autónoma de México, Mexico City, Mexico (R.A.-O.); Departments of Biochemistry and Medical Genetics and Immunology, University of Manitoba, Winnipeg, Manitoba, Canada (A.R.B., S.B.G.); Breakthrough Breast Cancer Research Center Chester Beatty Laboratories, London, United Kingdom (L.R.G., P.M.); Cancer Research Institute of Northern Alberta, Edmonton, Alberta, Canada (S.B.); and Women and Children's Health Research Institute, Edmonton, Alberta, Canada (S.B.)
| | - Vrajeshkumar Pandya
- Departments of Biochemistry (M.S., G.I.D., A.S., J.M., V.P., I.S.G., P.H., S.B.), Pediatrics (A.Z., R.M., S.F., S.B.), Pharmacology (K.S.B., B.P.H.), Oncology (S.B.) Medicine (Y.F., H.V., P.H.), and Faculty of Pharmacy and Pharmaceutical Sciences (R.A.-O., D.B., C.A.-V.M.), University of Alberta, Edmonton, Alberta, Canada; Facultad de Química, Departamento de Farmacia, Universidad Nacional Autónoma de México, Mexico City, Mexico (R.A.-O.); Departments of Biochemistry and Medical Genetics and Immunology, University of Manitoba, Winnipeg, Manitoba, Canada (A.R.B., S.B.G.); Breakthrough Breast Cancer Research Center Chester Beatty Laboratories, London, United Kingdom (L.R.G., P.M.); Cancer Research Institute of Northern Alberta, Edmonton, Alberta, Canada (S.B.); and Women and Children's Health Research Institute, Edmonton, Alberta, Canada (S.B.)
| | - Robin Manaloor
- Departments of Biochemistry (M.S., G.I.D., A.S., J.M., V.P., I.S.G., P.H., S.B.), Pediatrics (A.Z., R.M., S.F., S.B.), Pharmacology (K.S.B., B.P.H.), Oncology (S.B.) Medicine (Y.F., H.V., P.H.), and Faculty of Pharmacy and Pharmaceutical Sciences (R.A.-O., D.B., C.A.-V.M.), University of Alberta, Edmonton, Alberta, Canada; Facultad de Química, Departamento de Farmacia, Universidad Nacional Autónoma de México, Mexico City, Mexico (R.A.-O.); Departments of Biochemistry and Medical Genetics and Immunology, University of Manitoba, Winnipeg, Manitoba, Canada (A.R.B., S.B.G.); Breakthrough Breast Cancer Research Center Chester Beatty Laboratories, London, United Kingdom (L.R.G., P.M.); Cancer Research Institute of Northern Alberta, Edmonton, Alberta, Canada (S.B.); and Women and Children's Health Research Institute, Edmonton, Alberta, Canada (S.B.)
| | - Sunny Fong
- Departments of Biochemistry (M.S., G.I.D., A.S., J.M., V.P., I.S.G., P.H., S.B.), Pediatrics (A.Z., R.M., S.F., S.B.), Pharmacology (K.S.B., B.P.H.), Oncology (S.B.) Medicine (Y.F., H.V., P.H.), and Faculty of Pharmacy and Pharmaceutical Sciences (R.A.-O., D.B., C.A.-V.M.), University of Alberta, Edmonton, Alberta, Canada; Facultad de Química, Departamento de Farmacia, Universidad Nacional Autónoma de México, Mexico City, Mexico (R.A.-O.); Departments of Biochemistry and Medical Genetics and Immunology, University of Manitoba, Winnipeg, Manitoba, Canada (A.R.B., S.B.G.); Breakthrough Breast Cancer Research Center Chester Beatty Laboratories, London, United Kingdom (L.R.G., P.M.); Cancer Research Institute of Northern Alberta, Edmonton, Alberta, Canada (S.B.); and Women and Children's Health Research Institute, Edmonton, Alberta, Canada (S.B.)
| | - Anna R Blankstein
- Departments of Biochemistry (M.S., G.I.D., A.S., J.M., V.P., I.S.G., P.H., S.B.), Pediatrics (A.Z., R.M., S.F., S.B.), Pharmacology (K.S.B., B.P.H.), Oncology (S.B.) Medicine (Y.F., H.V., P.H.), and Faculty of Pharmacy and Pharmaceutical Sciences (R.A.-O., D.B., C.A.-V.M.), University of Alberta, Edmonton, Alberta, Canada; Facultad de Química, Departamento de Farmacia, Universidad Nacional Autónoma de México, Mexico City, Mexico (R.A.-O.); Departments of Biochemistry and Medical Genetics and Immunology, University of Manitoba, Winnipeg, Manitoba, Canada (A.R.B., S.B.G.); Breakthrough Breast Cancer Research Center Chester Beatty Laboratories, London, United Kingdom (L.R.G., P.M.); Cancer Research Institute of Northern Alberta, Edmonton, Alberta, Canada (S.B.); and Women and Children's Health Research Institute, Edmonton, Alberta, Canada (S.B.)
| | - Spencer B Gibson
- Departments of Biochemistry (M.S., G.I.D., A.S., J.M., V.P., I.S.G., P.H., S.B.), Pediatrics (A.Z., R.M., S.F., S.B.), Pharmacology (K.S.B., B.P.H.), Oncology (S.B.) Medicine (Y.F., H.V., P.H.), and Faculty of Pharmacy and Pharmaceutical Sciences (R.A.-O., D.B., C.A.-V.M.), University of Alberta, Edmonton, Alberta, Canada; Facultad de Química, Departamento de Farmacia, Universidad Nacional Autónoma de México, Mexico City, Mexico (R.A.-O.); Departments of Biochemistry and Medical Genetics and Immunology, University of Manitoba, Winnipeg, Manitoba, Canada (A.R.B., S.B.G.); Breakthrough Breast Cancer Research Center Chester Beatty Laboratories, London, United Kingdom (L.R.G., P.M.); Cancer Research Institute of Northern Alberta, Edmonton, Alberta, Canada (S.B.); and Women and Children's Health Research Institute, Edmonton, Alberta, Canada (S.B.)
| | - Laura Ramos Garcia
- Departments of Biochemistry (M.S., G.I.D., A.S., J.M., V.P., I.S.G., P.H., S.B.), Pediatrics (A.Z., R.M., S.F., S.B.), Pharmacology (K.S.B., B.P.H.), Oncology (S.B.) Medicine (Y.F., H.V., P.H.), and Faculty of Pharmacy and Pharmaceutical Sciences (R.A.-O., D.B., C.A.-V.M.), University of Alberta, Edmonton, Alberta, Canada; Facultad de Química, Departamento de Farmacia, Universidad Nacional Autónoma de México, Mexico City, Mexico (R.A.-O.); Departments of Biochemistry and Medical Genetics and Immunology, University of Manitoba, Winnipeg, Manitoba, Canada (A.R.B., S.B.G.); Breakthrough Breast Cancer Research Center Chester Beatty Laboratories, London, United Kingdom (L.R.G., P.M.); Cancer Research Institute of Northern Alberta, Edmonton, Alberta, Canada (S.B.); and Women and Children's Health Research Institute, Edmonton, Alberta, Canada (S.B.)
| | - Pascal Meier
- Departments of Biochemistry (M.S., G.I.D., A.S., J.M., V.P., I.S.G., P.H., S.B.), Pediatrics (A.Z., R.M., S.F., S.B.), Pharmacology (K.S.B., B.P.H.), Oncology (S.B.) Medicine (Y.F., H.V., P.H.), and Faculty of Pharmacy and Pharmaceutical Sciences (R.A.-O., D.B., C.A.-V.M.), University of Alberta, Edmonton, Alberta, Canada; Facultad de Química, Departamento de Farmacia, Universidad Nacional Autónoma de México, Mexico City, Mexico (R.A.-O.); Departments of Biochemistry and Medical Genetics and Immunology, University of Manitoba, Winnipeg, Manitoba, Canada (A.R.B., S.B.G.); Breakthrough Breast Cancer Research Center Chester Beatty Laboratories, London, United Kingdom (L.R.G., P.M.); Cancer Research Institute of Northern Alberta, Edmonton, Alberta, Canada (S.B.); and Women and Children's Health Research Institute, Edmonton, Alberta, Canada (S.B.)
| | - Khushwant S Bhullar
- Departments of Biochemistry (M.S., G.I.D., A.S., J.M., V.P., I.S.G., P.H., S.B.), Pediatrics (A.Z., R.M., S.F., S.B.), Pharmacology (K.S.B., B.P.H.), Oncology (S.B.) Medicine (Y.F., H.V., P.H.), and Faculty of Pharmacy and Pharmaceutical Sciences (R.A.-O., D.B., C.A.-V.M.), University of Alberta, Edmonton, Alberta, Canada; Facultad de Química, Departamento de Farmacia, Universidad Nacional Autónoma de México, Mexico City, Mexico (R.A.-O.); Departments of Biochemistry and Medical Genetics and Immunology, University of Manitoba, Winnipeg, Manitoba, Canada (A.R.B., S.B.G.); Breakthrough Breast Cancer Research Center Chester Beatty Laboratories, London, United Kingdom (L.R.G., P.M.); Cancer Research Institute of Northern Alberta, Edmonton, Alberta, Canada (S.B.); and Women and Children's Health Research Institute, Edmonton, Alberta, Canada (S.B.)
| | - Basil P Hubbard
- Departments of Biochemistry (M.S., G.I.D., A.S., J.M., V.P., I.S.G., P.H., S.B.), Pediatrics (A.Z., R.M., S.F., S.B.), Pharmacology (K.S.B., B.P.H.), Oncology (S.B.) Medicine (Y.F., H.V., P.H.), and Faculty of Pharmacy and Pharmaceutical Sciences (R.A.-O., D.B., C.A.-V.M.), University of Alberta, Edmonton, Alberta, Canada; Facultad de Química, Departamento de Farmacia, Universidad Nacional Autónoma de México, Mexico City, Mexico (R.A.-O.); Departments of Biochemistry and Medical Genetics and Immunology, University of Manitoba, Winnipeg, Manitoba, Canada (A.R.B., S.B.G.); Breakthrough Breast Cancer Research Center Chester Beatty Laboratories, London, United Kingdom (L.R.G., P.M.); Cancer Research Institute of Northern Alberta, Edmonton, Alberta, Canada (S.B.); and Women and Children's Health Research Institute, Edmonton, Alberta, Canada (S.B.)
| | - Yahya Fiteh
- Departments of Biochemistry (M.S., G.I.D., A.S., J.M., V.P., I.S.G., P.H., S.B.), Pediatrics (A.Z., R.M., S.F., S.B.), Pharmacology (K.S.B., B.P.H.), Oncology (S.B.) Medicine (Y.F., H.V., P.H.), and Faculty of Pharmacy and Pharmaceutical Sciences (R.A.-O., D.B., C.A.-V.M.), University of Alberta, Edmonton, Alberta, Canada; Facultad de Química, Departamento de Farmacia, Universidad Nacional Autónoma de México, Mexico City, Mexico (R.A.-O.); Departments of Biochemistry and Medical Genetics and Immunology, University of Manitoba, Winnipeg, Manitoba, Canada (A.R.B., S.B.G.); Breakthrough Breast Cancer Research Center Chester Beatty Laboratories, London, United Kingdom (L.R.G., P.M.); Cancer Research Institute of Northern Alberta, Edmonton, Alberta, Canada (S.B.); and Women and Children's Health Research Institute, Edmonton, Alberta, Canada (S.B.)
| | - Harissios Vliagoftis
- Departments of Biochemistry (M.S., G.I.D., A.S., J.M., V.P., I.S.G., P.H., S.B.), Pediatrics (A.Z., R.M., S.F., S.B.), Pharmacology (K.S.B., B.P.H.), Oncology (S.B.) Medicine (Y.F., H.V., P.H.), and Faculty of Pharmacy and Pharmaceutical Sciences (R.A.-O., D.B., C.A.-V.M.), University of Alberta, Edmonton, Alberta, Canada; Facultad de Química, Departamento de Farmacia, Universidad Nacional Autónoma de México, Mexico City, Mexico (R.A.-O.); Departments of Biochemistry and Medical Genetics and Immunology, University of Manitoba, Winnipeg, Manitoba, Canada (A.R.B., S.B.G.); Breakthrough Breast Cancer Research Center Chester Beatty Laboratories, London, United Kingdom (L.R.G., P.M.); Cancer Research Institute of Northern Alberta, Edmonton, Alberta, Canada (S.B.); and Women and Children's Health Research Institute, Edmonton, Alberta, Canada (S.B.)
| | - Ing Swie Goping
- Departments of Biochemistry (M.S., G.I.D., A.S., J.M., V.P., I.S.G., P.H., S.B.), Pediatrics (A.Z., R.M., S.F., S.B.), Pharmacology (K.S.B., B.P.H.), Oncology (S.B.) Medicine (Y.F., H.V., P.H.), and Faculty of Pharmacy and Pharmaceutical Sciences (R.A.-O., D.B., C.A.-V.M.), University of Alberta, Edmonton, Alberta, Canada; Facultad de Química, Departamento de Farmacia, Universidad Nacional Autónoma de México, Mexico City, Mexico (R.A.-O.); Departments of Biochemistry and Medical Genetics and Immunology, University of Manitoba, Winnipeg, Manitoba, Canada (A.R.B., S.B.G.); Breakthrough Breast Cancer Research Center Chester Beatty Laboratories, London, United Kingdom (L.R.G., P.M.); Cancer Research Institute of Northern Alberta, Edmonton, Alberta, Canada (S.B.); and Women and Children's Health Research Institute, Edmonton, Alberta, Canada (S.B.)
| | - Dion Brocks
- Departments of Biochemistry (M.S., G.I.D., A.S., J.M., V.P., I.S.G., P.H., S.B.), Pediatrics (A.Z., R.M., S.F., S.B.), Pharmacology (K.S.B., B.P.H.), Oncology (S.B.) Medicine (Y.F., H.V., P.H.), and Faculty of Pharmacy and Pharmaceutical Sciences (R.A.-O., D.B., C.A.-V.M.), University of Alberta, Edmonton, Alberta, Canada; Facultad de Química, Departamento de Farmacia, Universidad Nacional Autónoma de México, Mexico City, Mexico (R.A.-O.); Departments of Biochemistry and Medical Genetics and Immunology, University of Manitoba, Winnipeg, Manitoba, Canada (A.R.B., S.B.G.); Breakthrough Breast Cancer Research Center Chester Beatty Laboratories, London, United Kingdom (L.R.G., P.M.); Cancer Research Institute of Northern Alberta, Edmonton, Alberta, Canada (S.B.); and Women and Children's Health Research Institute, Edmonton, Alberta, Canada (S.B.)
| | - Peter Hwang
- Departments of Biochemistry (M.S., G.I.D., A.S., J.M., V.P., I.S.G., P.H., S.B.), Pediatrics (A.Z., R.M., S.F., S.B.), Pharmacology (K.S.B., B.P.H.), Oncology (S.B.) Medicine (Y.F., H.V., P.H.), and Faculty of Pharmacy and Pharmaceutical Sciences (R.A.-O., D.B., C.A.-V.M.), University of Alberta, Edmonton, Alberta, Canada; Facultad de Química, Departamento de Farmacia, Universidad Nacional Autónoma de México, Mexico City, Mexico (R.A.-O.); Departments of Biochemistry and Medical Genetics and Immunology, University of Manitoba, Winnipeg, Manitoba, Canada (A.R.B., S.B.G.); Breakthrough Breast Cancer Research Center Chester Beatty Laboratories, London, United Kingdom (L.R.G., P.M.); Cancer Research Institute of Northern Alberta, Edmonton, Alberta, Canada (S.B.); and Women and Children's Health Research Institute, Edmonton, Alberta, Canada (S.B.)
| | - Carlos A Velázquez-Martínez
- Departments of Biochemistry (M.S., G.I.D., A.S., J.M., V.P., I.S.G., P.H., S.B.), Pediatrics (A.Z., R.M., S.F., S.B.), Pharmacology (K.S.B., B.P.H.), Oncology (S.B.) Medicine (Y.F., H.V., P.H.), and Faculty of Pharmacy and Pharmaceutical Sciences (R.A.-O., D.B., C.A.-V.M.), University of Alberta, Edmonton, Alberta, Canada; Facultad de Química, Departamento de Farmacia, Universidad Nacional Autónoma de México, Mexico City, Mexico (R.A.-O.); Departments of Biochemistry and Medical Genetics and Immunology, University of Manitoba, Winnipeg, Manitoba, Canada (A.R.B., S.B.G.); Breakthrough Breast Cancer Research Center Chester Beatty Laboratories, London, United Kingdom (L.R.G., P.M.); Cancer Research Institute of Northern Alberta, Edmonton, Alberta, Canada (S.B.); and Women and Children's Health Research Institute, Edmonton, Alberta, Canada (S.B.)
| | - Shairaz Baksh
- Departments of Biochemistry (M.S., G.I.D., A.S., J.M., V.P., I.S.G., P.H., S.B.), Pediatrics (A.Z., R.M., S.F., S.B.), Pharmacology (K.S.B., B.P.H.), Oncology (S.B.) Medicine (Y.F., H.V., P.H.), and Faculty of Pharmacy and Pharmaceutical Sciences (R.A.-O., D.B., C.A.-V.M.), University of Alberta, Edmonton, Alberta, Canada; Facultad de Química, Departamento de Farmacia, Universidad Nacional Autónoma de México, Mexico City, Mexico (R.A.-O.); Departments of Biochemistry and Medical Genetics and Immunology, University of Manitoba, Winnipeg, Manitoba, Canada (A.R.B., S.B.G.); Breakthrough Breast Cancer Research Center Chester Beatty Laboratories, London, United Kingdom (L.R.G., P.M.); Cancer Research Institute of Northern Alberta, Edmonton, Alberta, Canada (S.B.); and Women and Children's Health Research Institute, Edmonton, Alberta, Canada (S.B.)
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Asaad T, Said A. Role of cranial electric stimulation in treatment-resistant insomnia: clinical versus polysomnographic assessment. Sleep Med 2017. [DOI: 10.1016/j.sleep.2017.11.049] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Oon Y, Mohd Amin N, Said A, Kilung A, Koh K, Khaw C, Ho K, Shu F, Tan C, Voon C, Khiew N, Cham Y, Alan F, Ong T. Accuracy and Reproducibility of Real-Time Three-Dimensional Echocardiography Versus Two-Dimensional Echocardiography in Measuring Left Ventricular Volumes and Ejection Fraction in Daily Clinical Practice. Int J Cardiol 2017. [DOI: 10.1016/j.ijcard.2017.09.076] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Ho K, Mohd Amin N, Muhd Apipi N, Husain N, Koh K, Said A, Johari F, Fong A, Ong T. Indication, Safety and Clinical Impact of Cardiovascular Magnetic Resonance: A Pilot Run of the First National CMR Registry for Malaysia. Int J Cardiol 2017. [DOI: 10.1016/j.ijcard.2017.09.079] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Oon Y, Khoo S, Lim H, Mohd Amin N, Koh K, Khaw C, Ho K, Shu F, Tan C, Voon C, Khiew N, Said A, Cham Y, Fong A, Ong T. The Incidence and Clinical Relevance of Coronary Artery Anomalies Detected on Multidetector Computed Tomography in Sarawak. Int J Cardiol 2017. [DOI: 10.1016/j.ijcard.2017.09.081] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Gordon M, Salla M, Said A, Natalia V, Dieleman L, Baksh S. Abstract PR02: Epigenetic and molecular drivers of inflammation-driven colorectal cancer. Cancer Res 2017. [DOI: 10.1158/1538-7445.crc16-pr02] [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: 11/16/2022]
Abstract
Abstract
Colorectal tumors arise from intestinal epithelial cells in a multistep process that extends over several years resulting in progression from a normal mucosa to invasive carcinoma. Approximately 5% of all CRC are due to inherited genetic mutations (sporadic CRC) while 95% of the cases originate from a state of chronic inflammation, such as observed in CRC arising in patients with inflammatory bowel diseases (IBD-CRC) or with primary sclerosing cholangitis (PSC-CRC). About 70-75% of PSC patients have ulcerative colitis (UC, a form of IBD) and thus PSC-IBD is very similar to IBD-CRC. It is now established that the persistent pro-inflammatory environment that exists in patients with IBD or PSC can trigger molecular changes leading to tumor development. In this study, we have explored the origins of abnormal chronic intestinal inflammation, what sustains it and how it promotes CRC if uncontrolled. Furthermore, we can eliminate intestinal inflammation and prevent invasive carcinoma in a mouse model of chronic inflammation driven malignancy using the azoxymethane [AOM]/dextran sodium sulphate [DSS] model. In this model, DSS injures the colonic mucosa and in repeated chronic cycles promotes inflammation-induced carcinogenesis, which is accelerated by an initial exposure to the pro-carcinogen AOM.
The tumor-suppressor protein, Ras association domain family 1A, (RASSF1A or 1A) is epigenetically silenced in numerous cancers, including CRC. 1A can negatively regulate NFκB and intestinal inflammation and its loss triggered acute colitis in a rodent model for IBD. In this study, we utilized mouse models, cell biology, patient samples and 3D intestinal organoids to demonstrate epigenetic silencing of 1A in IBD, PSC and CRC patients and detrimental effects of the expression loss of 1A during chronic inflammation-injury in the AOM/DSS model of IBD-CRC. Loss of 1A resulted in the appearance of colonic hyperplasia and invasive carcinoma. The timing of expression loss of 1A resulted in the hyperactivation of the nucleotide-binding oligomerization domain-containing protein2 (NOD2)/receptor interacting protein kinase 2 (RIPK2) pathway and Yes associated protein (YAP) dependent transcriptional activity. Abnormal phosphotyrosine (pY) activities of both RIPK2 and YAP contributed to the appearance of invasive carcinoma. YAP, when tyrosine phosphorylated, is a transcriptional co-activator of p73-driven cell death and TEAD/RUNX2/SMAD2 driven proliferation, whereas tyrosine phosphorylated RIPK2 can promote the activation of NFkB, the autophagic response and contribute to enhance growth and metastasis. Both RIPK2 and YAP maintain the chronic inflammation state and can drive colonic malignancy and the appearance of CRC. Furthermore, we validated the importance of both pY-YAP and pY-RIPK2 in IBD patient FFPE sections as well as in 3 case study IBD-CRC patients, utilized a small molecule anti-inflammatory to inhibit in vivo chronic inflammation and prevent invasive carcinoma. Both YAP and RIPK2 are novel biomarkers of inflammation-driven CRC and expression loss of RASSF1A may be an early marker for molecular changes during chronic inflammation that may predict the progression to CRC.
This abstract is also being presented as Poster A01.
Citation Format: Marilyn Gordon, Mohamed Salla, Ahmed Said, Volodko Natalia, Levinus Dieleman, Shariaz Baksh. Epigenetic and molecular drivers of inflammation-driven colorectal cancer. [abstract]. In: Proceedings of the AACR Special Conference on Colorectal Cancer: From Initiation to Outcomes; 2016 Sep 17-20; Tampa, FL. Philadelphia (PA): AACR; Cancer Res 2017;77(3 Suppl):Abstract nr PR02.
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Affiliation(s)
| | | | - Ahmed Said
- University of Alberta, Edmonton, AB, Canada
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Abd-Allah MA, Said A, Ali MN. Mitigation of Lightning Hazards at the More Sensitive Points in Wind Farms Using Ant-Colony Optimization Technique. Bulletin EEI 2016; 5:144-159. [DOI: 10.11591/eei.v5i2.524] [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] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Abstract
The lightning energy can be very harmfull to the wind turbine farm components. This paper attempts to evaluate the overvoltages at the sensitive points in wind farm, using ATP-EMTP package program. Four cases were performed; a) the transient voltage distribution in the insulating layer of the control line, b) the transient voltage on the control equipment, c) the coupling voltage between the tower and the control, and, d) the transient voltage distribution in the wind turbine WT generator, boast transformers and grid. These cases were performed under different lightning current conditions and at conventional design and proper design of grounding system. The results show that the ground potential rise (GPR) is reduced with using the proper design of wind turbine ground system, but the induced voltage at the control system will not affected. This work determines the optimum location of wind turbine at the areas of maximum lightning incidence. Ant colony optimization (ACO) technique is implemented to find the optimum wind farm location. This work enhances the protection strategy of the wind farms against lightning stroke.
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Abd-Allah MA, Said A, Ali MN. Mitigation of Lightning Hazards at the More Sensitive Points in Wind Farms Using Ant-Colony Optimization Technique. Bulletin EEI 2016; 5. [DOI: 10.11591/524] [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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Cham Y, Mohd Amin N, Khiew N, Said A, Fong A, Ong T. PS252 Predictors of Radiation Dose in Patients Undergoing Cardiac Computed Tomography Angiography (CCTA). Glob Heart 2016. [DOI: 10.1016/j.gheart.2016.03.194] [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: 11/15/2022] Open
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Abd-Allah MA, Said A, N. Ali M. Mitigation of Lightning Hazards at the More Sensitive Points in Wind Farms Using Ant-Colony Optimization Technique. Bulletin EEI 2016; 5. [DOI: 10.11591/eei.v5i2.618] [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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