1
|
Ibrahim F, Cadour F, Campbell-Washburn AE, Allen BD, Vosshenrich J, Brown MJ, Thavendiranathan P, Hanneman K, Moy L. Energy and Greenhouse Gas Emission Savings Associated with Implementation of an Abbreviated Cardiac MRI Protocol. Radiology 2024; 311:e240588. [PMID: 38652029 PMCID: PMC11070609 DOI: 10.1148/radiol.240588] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 03/27/2024] [Accepted: 03/28/2024] [Indexed: 04/25/2024]
Abstract
Supplemental material is available for this article. See also the article by Lenkinski and Rofsky in this issue. See also the article by McKee et al in this issue.
Collapse
Affiliation(s)
- Fadi Ibrahim
- From the Department of Medical Imaging, University Medical Imaging
Toronto, University of Toronto, Toronto, Ontario, Canada (F.I., F.C., P.T.,
K.H.); Cardiovascular Branch, Division of Intramural Research, National Heart,
Lung, and Blood Institute, National Institutes of Health, Bethesda, Md
(A.E.C.W.); Department of Radiology, Northwestern University Feinberg School of
Medicine, Chicago, Ill (B.D.A.); Department of Radiology, University Hospital
Basel, Basel, Switzerland (J.V.); Department of Radiology, Faculty of Medicine,
University of British Columbia, Vancouver, Canada (M.J.B.); Division of
Cardiology, Peter Munk Cardiac Centre, University Health Network, University of
Toronto, Toronto, Ontario, Canada (P.T.); and Toronto General Hospital Research
Institute, University Health Network, University of Toronto, 585 University Ave,
1 PMB-298, Toronto, ON, Canada M5G 2N2 (P.T., K.H.)
| | - Farah Cadour
- From the Department of Medical Imaging, University Medical Imaging
Toronto, University of Toronto, Toronto, Ontario, Canada (F.I., F.C., P.T.,
K.H.); Cardiovascular Branch, Division of Intramural Research, National Heart,
Lung, and Blood Institute, National Institutes of Health, Bethesda, Md
(A.E.C.W.); Department of Radiology, Northwestern University Feinberg School of
Medicine, Chicago, Ill (B.D.A.); Department of Radiology, University Hospital
Basel, Basel, Switzerland (J.V.); Department of Radiology, Faculty of Medicine,
University of British Columbia, Vancouver, Canada (M.J.B.); Division of
Cardiology, Peter Munk Cardiac Centre, University Health Network, University of
Toronto, Toronto, Ontario, Canada (P.T.); and Toronto General Hospital Research
Institute, University Health Network, University of Toronto, 585 University Ave,
1 PMB-298, Toronto, ON, Canada M5G 2N2 (P.T., K.H.)
| | - Adrienne E. Campbell-Washburn
- From the Department of Medical Imaging, University Medical Imaging
Toronto, University of Toronto, Toronto, Ontario, Canada (F.I., F.C., P.T.,
K.H.); Cardiovascular Branch, Division of Intramural Research, National Heart,
Lung, and Blood Institute, National Institutes of Health, Bethesda, Md
(A.E.C.W.); Department of Radiology, Northwestern University Feinberg School of
Medicine, Chicago, Ill (B.D.A.); Department of Radiology, University Hospital
Basel, Basel, Switzerland (J.V.); Department of Radiology, Faculty of Medicine,
University of British Columbia, Vancouver, Canada (M.J.B.); Division of
Cardiology, Peter Munk Cardiac Centre, University Health Network, University of
Toronto, Toronto, Ontario, Canada (P.T.); and Toronto General Hospital Research
Institute, University Health Network, University of Toronto, 585 University Ave,
1 PMB-298, Toronto, ON, Canada M5G 2N2 (P.T., K.H.)
| | - Bradley D. Allen
- From the Department of Medical Imaging, University Medical Imaging
Toronto, University of Toronto, Toronto, Ontario, Canada (F.I., F.C., P.T.,
K.H.); Cardiovascular Branch, Division of Intramural Research, National Heart,
Lung, and Blood Institute, National Institutes of Health, Bethesda, Md
(A.E.C.W.); Department of Radiology, Northwestern University Feinberg School of
Medicine, Chicago, Ill (B.D.A.); Department of Radiology, University Hospital
Basel, Basel, Switzerland (J.V.); Department of Radiology, Faculty of Medicine,
University of British Columbia, Vancouver, Canada (M.J.B.); Division of
Cardiology, Peter Munk Cardiac Centre, University Health Network, University of
Toronto, Toronto, Ontario, Canada (P.T.); and Toronto General Hospital Research
Institute, University Health Network, University of Toronto, 585 University Ave,
1 PMB-298, Toronto, ON, Canada M5G 2N2 (P.T., K.H.)
| | - Jan Vosshenrich
- From the Department of Medical Imaging, University Medical Imaging
Toronto, University of Toronto, Toronto, Ontario, Canada (F.I., F.C., P.T.,
K.H.); Cardiovascular Branch, Division of Intramural Research, National Heart,
Lung, and Blood Institute, National Institutes of Health, Bethesda, Md
(A.E.C.W.); Department of Radiology, Northwestern University Feinberg School of
Medicine, Chicago, Ill (B.D.A.); Department of Radiology, University Hospital
Basel, Basel, Switzerland (J.V.); Department of Radiology, Faculty of Medicine,
University of British Columbia, Vancouver, Canada (M.J.B.); Division of
Cardiology, Peter Munk Cardiac Centre, University Health Network, University of
Toronto, Toronto, Ontario, Canada (P.T.); and Toronto General Hospital Research
Institute, University Health Network, University of Toronto, 585 University Ave,
1 PMB-298, Toronto, ON, Canada M5G 2N2 (P.T., K.H.)
| | - Maura J. Brown
- From the Department of Medical Imaging, University Medical Imaging
Toronto, University of Toronto, Toronto, Ontario, Canada (F.I., F.C., P.T.,
K.H.); Cardiovascular Branch, Division of Intramural Research, National Heart,
Lung, and Blood Institute, National Institutes of Health, Bethesda, Md
(A.E.C.W.); Department of Radiology, Northwestern University Feinberg School of
Medicine, Chicago, Ill (B.D.A.); Department of Radiology, University Hospital
Basel, Basel, Switzerland (J.V.); Department of Radiology, Faculty of Medicine,
University of British Columbia, Vancouver, Canada (M.J.B.); Division of
Cardiology, Peter Munk Cardiac Centre, University Health Network, University of
Toronto, Toronto, Ontario, Canada (P.T.); and Toronto General Hospital Research
Institute, University Health Network, University of Toronto, 585 University Ave,
1 PMB-298, Toronto, ON, Canada M5G 2N2 (P.T., K.H.)
| | - Paaladinesh Thavendiranathan
- From the Department of Medical Imaging, University Medical Imaging
Toronto, University of Toronto, Toronto, Ontario, Canada (F.I., F.C., P.T.,
K.H.); Cardiovascular Branch, Division of Intramural Research, National Heart,
Lung, and Blood Institute, National Institutes of Health, Bethesda, Md
(A.E.C.W.); Department of Radiology, Northwestern University Feinberg School of
Medicine, Chicago, Ill (B.D.A.); Department of Radiology, University Hospital
Basel, Basel, Switzerland (J.V.); Department of Radiology, Faculty of Medicine,
University of British Columbia, Vancouver, Canada (M.J.B.); Division of
Cardiology, Peter Munk Cardiac Centre, University Health Network, University of
Toronto, Toronto, Ontario, Canada (P.T.); and Toronto General Hospital Research
Institute, University Health Network, University of Toronto, 585 University Ave,
1 PMB-298, Toronto, ON, Canada M5G 2N2 (P.T., K.H.)
| | - Kate Hanneman
- From the Department of Medical Imaging, University Medical Imaging
Toronto, University of Toronto, Toronto, Ontario, Canada (F.I., F.C., P.T.,
K.H.); Cardiovascular Branch, Division of Intramural Research, National Heart,
Lung, and Blood Institute, National Institutes of Health, Bethesda, Md
(A.E.C.W.); Department of Radiology, Northwestern University Feinberg School of
Medicine, Chicago, Ill (B.D.A.); Department of Radiology, University Hospital
Basel, Basel, Switzerland (J.V.); Department of Radiology, Faculty of Medicine,
University of British Columbia, Vancouver, Canada (M.J.B.); Division of
Cardiology, Peter Munk Cardiac Centre, University Health Network, University of
Toronto, Toronto, Ontario, Canada (P.T.); and Toronto General Hospital Research
Institute, University Health Network, University of Toronto, 585 University Ave,
1 PMB-298, Toronto, ON, Canada M5G 2N2 (P.T., K.H.)
| | - Linda Moy
- From the Department of Medical Imaging, University Medical Imaging
Toronto, University of Toronto, Toronto, Ontario, Canada (F.I., F.C., P.T.,
K.H.); Cardiovascular Branch, Division of Intramural Research, National Heart,
Lung, and Blood Institute, National Institutes of Health, Bethesda, Md
(A.E.C.W.); Department of Radiology, Northwestern University Feinberg School of
Medicine, Chicago, Ill (B.D.A.); Department of Radiology, University Hospital
Basel, Basel, Switzerland (J.V.); Department of Radiology, Faculty of Medicine,
University of British Columbia, Vancouver, Canada (M.J.B.); Division of
Cardiology, Peter Munk Cardiac Centre, University Health Network, University of
Toronto, Toronto, Ontario, Canada (P.T.); and Toronto General Hospital Research
Institute, University Health Network, University of Toronto, 585 University Ave,
1 PMB-298, Toronto, ON, Canada M5G 2N2 (P.T., K.H.)
| |
Collapse
|
2
|
Barsoum K, Khalil M, Eid MM, Hassib M, Ibrahim F, Khalife W, Chatila K, Pandey R, Abdou C, Bandyopadhyay D, Rai D, Aronow WS, Rangasetty UC. Outcomes and Readmissions after Left Atrial Appendage Occlusion in Octogenarians: A Contemporary Analysis. J Am Med Dir Assoc 2024; 25:356.e1-356.e6. [PMID: 37634550 DOI: 10.1016/j.jamda.2023.06.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 06/13/2023] [Accepted: 06/13/2023] [Indexed: 08/29/2023]
Abstract
INTRODUCTION AND OBJECTIVES The outcomes of left atrial appendage occlusion (LAAO) with the Watchman device in octogenarians are unknown as this population was underrepresented in major clinical trials. This study aims at examining the causes and outcomes of readmission after LAAO. DESIGN A retrospective cohort study based on the National Readmission Database in the United States. SETTINGS AND PARTICIPANT Patients aged ≥80 years, admitted between January 2016 and December 2018, with the primary diagnosis of atrial fibrillation or flutter or who had LAAO were included in the study. Patients who died during index admission were excluded. METHODS We used the National Readmission Database and International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) codes to identify study participants. Data analysis was performed through Stata, version 17. Univariate and multivariate aggression analysis was used to adjust for confounders using Student t tests and χ2 tests. RESULTS We identified 491,329 patients on anticoagulation (AC) and 2030 patients who underwent LAA closure. Neither group differed regarding hypertension, previous myocardial infarction, or valvular heart disease. All-cause readmissions were lower in the LAAO group at 45 days (adjusted P < .01). All-cause readmissions at 45 and 90 days were similar in both groups. There was an increase in gastrointestinal bleeding (GIB) readmissions in the LAAO at 45 (P < .01), 90 (P < .01), and 180 (P < .01) days. There was no difference in GIB readmission between the 2 groups. There was no also difference in stroke or intracranial hemorrhage rates between the 2 groups throughout the follow-up period. CONCLUSION AND IMPLICATIONS In octogenarians who received LAAO, the rate of GIB increased during the first 6 months after the procedure; however, it was not different from that of AC after that. Special attention should be given to the antithrombotic regimens after LAAO to avoid bleeding in this vulnerable patient population.
Collapse
Affiliation(s)
| | - Mahmoud Khalil
- Internal Medicine Department, Lincoln Medical Center, New York, NY, USA
| | | | - Mohab Hassib
- Jersey Shore University St Francis Medical Center, Trenton, NJ, USA
| | - Fadi Ibrahim
- Department of Medicine, American University of Antigua, Osbourn, Antigua & Barbuda
| | | | | | - Ritambhara Pandey
- Department of Internal Medicine, Rochester General Hospital, Rochester, NY, USA
| | - Claudine Abdou
- Department of Pharmacy, University of Rochester, Rochester, NY, USA
| | - Dhrubajyoti Bandyopadhyay
- Department of Cardiology, Sands-Constellation Heart Institute, Rochester Regional Health, New York, NY, USA
| | - Devesh Rai
- Department of Cardiology, Westchester Medical Center, Valhalla, NY, USA.
| | - Wilbert S Aronow
- Department of Cardiology, Westchester Medical Center, Valhalla, NY, USA
| | | |
Collapse
|
3
|
Slouha E, Ibrahim F, Esposito S, Mursuli O, Rezazadah A, Clunes LA, Kollias TF. Botulinum Toxin for the Management of Parkinson's Disease: A Systematic Review. Cureus 2024; 16:e53309. [PMID: 38435899 PMCID: PMC10906698 DOI: 10.7759/cureus.53309] [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] [Accepted: 01/31/2024] [Indexed: 03/05/2024] Open
Abstract
Parkinson's disease (PD) is a terminal, debilitating neurodegenerative disorder typically affecting individuals over 60. It is associated with various conditions that drastically affect the patient's quality of life (QoL). Although there is no cure for PD, its symptoms can be significantly improved and even resolved through different treatments. Mainstay treatments for PD include levodopa combined with carbidopa, dopamine agonists, and even deep brain stimulation (DBS) of the subthalamic nucleus. New treatment methods have emerged, such as botulinum toxin (BoNT), which further improve symptoms and, thus, the QoL of patients with PD. Botulinum toxin is a potent neurotoxin produced by Clostridium botulinum that typically causes descending paralysis by suppressing acetylcholine secretion. Serotypes used to treat various disorders include serotype A (BoNT-A) and serotype B (BoNT-B). This paper aims to evaluate the outcomes of BoNT injection on different symptoms associated with PD. An extensive review using PubMed, ScienceDirect, and ProQuest articles concerning 'botulinum toxin and Parkinson's disease' was done per the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines, resulting in 23,803 articles. After applying strict inclusion and exclusion criteria, the total number of articles was finally 41. The results showed that movement disorders were a common occurrence in PD, consisting of tremors, dystonia, and freezing of gait (FOG), with tremors being the most common symptom. Tremors and dystonia were significantly improved following BoNT-A, correlating with significant improvements in various scales subjectively and objectively evaluating the symptoms and QoL. In contrast, FOG was not significantly improved by either BoNT-A or BoNT-B. Pain is associated with movement disorders such as PD and was the primary indication for the administration of BoNT; studies found pain and QoL were significantly improved following BoNT injection. Quality of life can also be affected by sialorrhea and overactive bladder, which often occur as the disease progresses. Injections of BoNT-A and BoNT-B were shown to significantly improve saliva production, flow rate, drooling frequency, voiding frequency, and urinary urge incontinence. Across all studies analyzed, it is evident that BoNT may have a significant effect on improving the QoL of patients suffering from PD. While research continues to find a cure or stop the progression of PD, it remains critical to continue focusing on improving patients' QoL. Future research should evaluate whether BoNT can be used to successfully treat other symptoms of PD, such as epiphora or constipation.
Collapse
Affiliation(s)
- Ethan Slouha
- Pharmacology, St. George's University School of Medicine, St. George's, GRD
| | - Fadi Ibrahim
- Pharmacology, St. George's University School of Medicine, St. George's, GRD
| | - Sarah Esposito
- Pharmacology, St. George's University School of Medicine, St. George's, GRD
| | - Odelin Mursuli
- Pharmacology, St. George's University School of Medicine, St. George's, GRD
| | - Atbeen Rezazadah
- Pharmacology, St. George's University School of Medicine, St. George's, GRD
| | - Lucy A Clunes
- Pharmacology, St George's University School of Medicine, St George's, GRD
| | - Theofanis F Kollias
- Microbiology, Immunology, and Pharmacology, St. George's University School of Medicine, St. George's, GRD
| |
Collapse
|
4
|
Slouha E, Ibrahim F, Rezazadah A, Esposito S, Clunes LA, Kollias TF. Anti-diabetics and the Prevention of Dementia: A Systematic Review. Cureus 2023; 15:e49515. [PMID: 38152822 PMCID: PMC10752751 DOI: 10.7759/cureus.49515] [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] [Accepted: 11/26/2023] [Indexed: 12/29/2023] Open
Abstract
Type 2 diabetes mellitus (T2DM) is a worldwide epidemic that is only increasing as the years progress, and as of 2019, affecting over 37 million. T2DM is a chronic condition caused by reduced insulin secretion and increased insulin resistance. Due to insulin not operating at optimal conditions, blood glucose rises and remains high, thus disturbing metabolic hemostasis. Many complications can arise from T2DM, such as coronary vascular disease, kidney damage, eye damage, and, quite significantly, dementia. It is theorized that dementia from T2DM stems from the fact that the brain is susceptible to hyperglycemic conditions, which are promoted by the increase in insulin resistance of target cells in the central nervous system. This directly affects cognitive processes and memory, which correlates to decreased temporal and front lobes volume. The risk of diabetic complications can be minimized with therapeutic interventions such as oral-antidiabetic (OAD) agents and insulin. Several OADs are on the market, but the first-line agent is metformin, a biguanide that decreases glucose production and increases insulin sensitivity. This paper aims to determine if currently prescribed OADs can help slow cognitive decline and reduce the risk and incidence of dementia as a complication of T2DM. Studies found that, for the most part, all OADs except sulfonylureas (SU) significantly slowed the decline of cognitive function and reduced the risk and incidence of dementia. SU's were shown to increase the risk of dementia in most studies. Of all the OADs, thiazolidinediones may be the most beneficial drug class for reducing the risk of dementia in T2DM patients. Future research should focus on whether early intervention with specific classes of OADs can not only improve glycemic control, leading to decreased hyperglycemia but also prevent the build-up of damaged brain tissue and help to reduce the risk and incidence of dementia in patients with T2DM.
Collapse
Affiliation(s)
- Ethan Slouha
- Anatomical Sciences, St. George's University School of Medicine, True Blue, GRD
| | - Fadi Ibrahim
- Pharmacology, St. George's University School of Medicine, True Blue, GRD
| | - Atbeen Rezazadah
- Pharmacology, St. George's University School of Medicine, True Blue, GRD
| | - Sarah Esposito
- Pharmacology, St. George's University School of Medicine, True Blue, GRD
| | - Lucy A Clunes
- Pharmacology, St. George's University, St George's, GRD
| | - Theofanis F Kollias
- Microbiology, Immunology and Pharmacology, St. George's University School of Medicine, True Blue, GRD
| |
Collapse
|
5
|
Victor V, Chowdhury MR, Ibrahim F, Abumoawad A, Barssoum K. SAFETY AND EFFICACY OF DIRECT-ACTING ORAL ANTICOAGULANTS VS VITAMIN K ANTAGONISTS IN PATIENTS WITH A HISTORY OF INTRACRANIAL HEMORRHAGE: A META-ANALYSIS. J Am Coll Cardiol 2023. [DOI: 10.1016/s0735-1097(23)02539-1] [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: 03/06/2023]
|
6
|
Giove A, El Ouardi Y, Sala A, Ibrahim F, Hietala S, Sievänen E, Branger C, Laatikainen K. Highly selective recovery of Ni(II) in neutral and acidic media using a novel Ni(II)-ion imprinted polymer. J Hazard Mater 2023; 444:130453. [PMID: 36435044 DOI: 10.1016/j.jhazmat.2022.130453] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 11/10/2022] [Accepted: 11/19/2022] [Indexed: 06/16/2023]
Abstract
In this work, an original ion-imprinted polymer (IIP) was synthetized for the highly selective removal of Ni(II) ions in neutral and acidic media. First a novel functional monomer (AMP-MMA) was synthetized through the amidation of 2-(aminomethyl)pyridine (AMP) with methacryloylchloride. Following Ni(II)/AMP-MMA complex formation study, the Ni(II)-IIP was produced via inverse suspension polymerization (DMSO in mineral oil) and characterized with solid state 13C CPMAS NMR, FT-IR, SEM and nitrogen adsorption/desorption experiments. The Ni(II)-IIP was then used in solid-phase extraction of Ni(II) exploring a wide range of pH (from neutral to strongly acidic solution), several initial concentrations of Ni(II) (from 0.02 to 1 g/L), and the presence of competitive ions (Co(II), Cu(II), Cd(II), Mn(II), and Mg(II)). The maximum Ni(II) adsorption capacity at pH 2 and pH 7 reached values of 138.9 mg/g and 169.5 mg/g, that are among the best reported in literature. The selectivity coefficients toward Cd(II), Mn(II), Co(II), Mg(II) and Cu(II) are also very high, with values up to 38.6, 32.9, 25.2, 23.1 and 15.0, respectively. The Ni(II)-IIP showed good reusability of up to 5 cycles both with acidic and basic Ni(II) eluents.
Collapse
Affiliation(s)
- A Giove
- Lappeenranta-Lahti University of Technology LUT, School of Engineering Science, Department of Separation Science, Yliopistonkatu 34, FIN-53850 Lappeenranta, Finland; Université de Toulon, MAPIEM, Toulon, France.
| | - Y El Ouardi
- Lappeenranta-Lahti University of Technology LUT, School of Engineering Science, Department of Separation Science, Yliopistonkatu 34, FIN-53850 Lappeenranta, Finland
| | - A Sala
- Université de Toulon, MAPIEM, Toulon, France
| | - F Ibrahim
- Université de Toulon, MAPIEM, Toulon, France
| | - S Hietala
- University of Helsinki, Department of Chemistry, PB 55, FIN-00014 Helsinki, Finland
| | - E Sievänen
- University of Jyväskylä, Department of Chemistry, P.O. Box 35, FIN-40014, Finland
| | - C Branger
- Université de Toulon, MAPIEM, Toulon, France.
| | - K Laatikainen
- Lappeenranta-Lahti University of Technology LUT, School of Engineering Science, Department of Separation Science, Yliopistonkatu 34, FIN-53850 Lappeenranta, Finland; Finnish Defence Research Agency, Paroistentie 20, FIN-34100 Lakiala, Finland
| |
Collapse
|
7
|
Barssoum K, Patel HP, Abdelmaseih R, Hassib M, Victor V, Mohamed A, Jazar DA, Mai S, Ibrahim F, Patel B, Baeni AE, Khalife W, Bandyopadhay D, Rai D, Chatila K. Characteristics and Outcomes of Early vs Late Initiation of Mechanical Circulatory Support in Non-Acute Myocardial Infarction related Cardiogenic Shock: An Analysis of the National Inpatient Sample Database. Curr Probl Cardiol 2023; 48:101584. [PMID: 36642353 DOI: 10.1016/j.cpcardiol.2023.101584] [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] [Received: 12/24/2022] [Accepted: 01/03/2023] [Indexed: 01/15/2023]
Abstract
Cardiogenic shock (CS) is significant cause of mortality. The use of mechanical circulatory support (MCS) in patients with non-acute myocardial infarction (Non-AMI) CS is lacking. We inquired data regarding the trends and outcomes early vs late initiation of MCS in non-AMI CS. We investigated National Inpatient Sample database between October 2015-December 2018, identifying hospitalizations with CS, either complicated by AMI or Non-AMI. Patients were divided into 2 cohorts, early initiation of MCS (<48 hours) and late initiation of MCS (>48 hours). The primary analysis included death within first 24 hours. A secondary analysis was adjusted after excluding patients who died in first 24 hours. A total of 85,318 patients with non-AMI-related CS with MCS placement were identified. Among this cohort, 54.6% (n=46,579) underwent early initiation of MCS within 48 hours, and 45.4% (n=38,739) underwent late initiation of MCS after 48 hours. In primary analysis, early MCS initiation was associated with more in-hospital mortality in primary outcome of all-cause hospital mortality (35.72% vs 27.63%, P<0.0001, OR 1.44, 95% CI: 1.40-1.49, P<0.0001), however, adjusted secondary analysis showed a statistically significant decrease in all-cause hospital mortality (23.63% vs 27.63%, P<0.0001, OR 0.80, 95% CI: 0.78-0.83, P<0.0001). In non-AMI-related CS and based on survival to 24 hours after admission, early initiation of MCS had statistically significant decrease in all-cause hospital mortality, with less incidence of vascular and renal complications, and shorter hospital stay. Late initiation of MCS was associated with a higher incidence of advanced therapies, including LVAD and transplant.
Collapse
Affiliation(s)
- Kirolos Barssoum
- Department of cardiology, University of Texas Medical Branch, Galveston, TX
| | - Harsh P Patel
- Department cardiology, Southern Illinois University, Carbondale, IL
| | - Ramy Abdelmaseih
- Department of cardiology, University of Texas Medical Branch, Galveston, TX
| | - Mohab Hassib
- Department of cardiology, University of Texas Medical Branch, Galveston, TX
| | | | - Ahmed Mohamed
- Department of cardiology, University of Texas Medical Branch, Galveston, TX
| | - Deaa Abu Jazar
- Department of internal medicine, University of Texas Medical Branch, Galveston, TX
| | - Steven Mai
- Department of internal medicine, University of Texas Medical Branch, Galveston, TX
| | - Fadi Ibrahim
- American University of Antigua, Antigua & Barbuda
| | - Bhavin Patel
- Department of internal medicine, Saint Joseph Mercy Oakland Hospital, Pontiac, MI
| | - Aiham El Baeni
- Department of cardiology, University of Texas Medical Branch, Galveston, TX
| | - Wissam Khalife
- Department of cardiology, University of Texas Medical Branch, Galveston, TX
| | | | - Devesh Rai
- Department of Cardiology, Sands-Constellation Heart Institute, Rochester Regional Health, Rochester, NY.
| | - Khaled Chatila
- Department of cardiology, University of Texas Medical Branch, Galveston, TX
| |
Collapse
|
8
|
Victor V, Abumoawad A, Ibrahim F, Barssoum K. Outcomes in hypertrophic obstructive cardiomyopathy patients undergoing non-cardiac surgery-a nationwide analysis. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1738] [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
Introduction
Patients with hypertrophic obstructive cardiomyopathy (HOCM) have a unique pathophysiological profile that increases their chances of having adverse events in the postoperative period following surgical procedures. Owing to the rarity of the disease, few studies are available for assessing readmission risk in HOCM patients undergoing noncardiac surgical procedures.
Purpose
Our study aimed to assess 30-day readmission rates and causes for readmissions among HOCM patients who had undergone noncardiac surgeries in hospitals across the United States (US).
Methods
We used appropriate International Classification of Diseases Code, 10th Revision Clinical Modification (ICD-10-CM) codes to identify patients who had been admitted for non-cardiac surgeries between January 2016 and December 2019 based on data from the National Readmissions Database (NRD). The NRD is a publicly available all-payer in-patient database sponsored by the Agency for Healthcare Research and Quality, containing discharge data from approximately 18 million discharges each year, accounting for 61.8% of the total US resident population. Patients were subdivided into two sub-groups based on the presence or absence of HOCM. 30-day readmission rates and causes of readmissions were compared between both groups. STATA version 17 (College Station,TX: StataCorp LLC) was used for statistical analyses.
Results
A total of 5,497,134 patients out of whom 2,089 had HOCM were identified and included for analysis. Patients with HOCM had statistically significant higher rates of readmissions for central nervous system related complications such as stroke or transient ischemic attack (TIA), cardiogenic shock, acute heart failure, unspecified iatrogenic cardiac complications, acute kidney injury, sepsis in addition to higher rates of post op respiratory failure, acute myocardial infarction and major adverse cardiovascular and cerebrovascular events (MACCE) during the index admission when compared to the other subgroup.
Conclusion
Our study, despite being retrospective in nature, is one of the largest to date assessing readmission risk in HOCM patients undergoing noncardiac surgeries. Similar to previous studies, HOCM patients have higher rates of readmissions and MACCE in the 30-day period following noncardiac surgical procedures. In light of these findings, shared medical decision making and appropriate counseling regarding complications in the postoperative period will be necessary for HOCM patients who undergo noncardiac surgical procedures.
Funding Acknowledgement
Type of funding sources: None.
Collapse
Affiliation(s)
- V Victor
- Aultman Hospital , Canton , United States of America
| | - A Abumoawad
- Mayo Clinic, Nephrology , Rochester , United States of America
| | - F Ibrahim
- American University of Antigua, Internal Medicine , Osbourn , Antigua and Barbuda
| | - K Barssoum
- University of Texas Medical Branch, Cardiology , Galveston , United States of America
| |
Collapse
|
9
|
Ali F, Rehman F, Hadi R, Raza G, Khan N, Ibrahim F, Aziz F, Amin M, Khalil B, Mahwish M, Bashir S, Ali A, Hussain M. Environmental sustainability assessment of wooden furniture produced in Pakistan. BRAZ J BIOL 2022; 84:e253107. [PMID: 35019094 DOI: 10.1590/1519-6984.253107] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Accepted: 08/31/2021] [Indexed: 11/22/2022] Open
Abstract
Life cycle assessment was carried out for a conventional wooden furniture set produced in Mardan division of the Khyber Pakhtunkhwa province of Pakistan during 2018-19. Primary data regarding inputs and outputs were collected through questionnaire surveys from 100 conventional wooden furniture set manufacturers, 50 in district Mardan and 50 in district Swabi. In the present study, cradle-to-gate life cycle assessment approach was applied for a functional unit of one conventional wooden furniture set. Production weighted average data were modelled in the environmental impacts modelling software i.e., SimaPro v.8.5. The results showed that textile used in sofa set, wood preservative for polishing and preventing insects attack and petrol used in generator had the highest contribution to all the environmental impact categories evaluated. Total cumulative energy demand for wooden furniture set manufactured was 30,005 MJ with most of the energy acquired from non-renewable fossil fuel resources.
Collapse
Affiliation(s)
- F Ali
- University of Haripur, Department of Forestry and Wildlife Management, Khyber Pakhtunkhwa, Pakistan
| | - F Rehman
- COMSATS University Islamabad - CUI, Department of Economics, Lahore Campus, Lahore, Punjab, Pakistan
| | - R Hadi
- Jinnah University for Women, Department of Zoology, Nazimabad, Karachi, Sindh, Pakistan
| | - G Raza
- University of Baltistan, Department of Biological Sciences, Skardu, Gilgit-Baltistan, Pakistan
| | - N Khan
- Jinnah University for Women, Department of Zoology, Nazimabad, Karachi, Sindh, Pakistan
| | - F Ibrahim
- Jinnah University for Women, Department of Zoology, Nazimabad, Karachi, Sindh, Pakistan
| | - F Aziz
- Jinnah University for Women, Department of Biochemistry, Nazimabad, Karachi, Sindh, Pakistan
| | - M Amin
- Shaheed Benazir Bhutto University, Department of Environmental Sciences, Sheringal, Dir (U), KP, Pakistan
| | - B Khalil
- Jinnah University for Women, Department of Zoology, Nazimabad, Karachi, Sindh, Pakistan
| | - M Mahwish
- Jinnah University for Women, Department of Zoology, Nazimabad, Karachi, Sindh, Pakistan
| | - S Bashir
- Planning, Agriculture Research System, Peshawar, Khyber Pakhtunkhwa, Pakistan
| | - A Ali
- Department of Forestry, Range and Wildlife Management, Karakoram International University, 15100, Gilgit Baltistan, Pakistan
| | - M Hussain
- University of Haripur, Department of Forestry and Wildlife Management, Khyber Pakhtunkhwa, Pakistan
| |
Collapse
|
10
|
Barssoum K, Victor V, Salem A, Kumar A, Mubasher M, Hassib M, Magdi M, Renjithlal S, Abdelazeem M, Shariff M, Idemudia O, Ibrahim M, Mohamed A, Thakkar S, Patel H, Diab M, Szeles A, Ibrahim F, Jha R, Chowdhury M, Akula N, Kalra A, Nanda NC. Echocardiography, lung ultrasound, and cardiac magnetic resonance findings in COVID-19: A systematic review. Echocardiography 2021; 38:1365-1404. [PMID: 34236091 PMCID: PMC8444724 DOI: 10.1111/echo.15152] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 05/25/2021] [Accepted: 06/23/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND The manifestations of COVID-19 as outlined by imaging modalities such as echocardiography, lung ultrasound (LUS), and cardiac magnetic resonance (CMR) imaging are not fully described. METHODS We conducted a systematic review of the current literature and included studies that described cardiovascular manifestations of COVID-19 using echocardiography, CMR, and pulmonary manifestations using LUS. We queried PubMed, EMBASE, and Web of Science for relevant articles. Original studies and case series were included. RESULTS This review describes the most common abnormalities encountered on echocardiography, LUS, and CMR in patients infected with COVID-19.
Collapse
Affiliation(s)
- Kirolos Barssoum
- Department of Internal MedicineRochester Regional HealthUnity HospitalRochesterNew YorkUSA
| | - Varun Victor
- Department of Internal MedicineCanton Medical Education FoundationCantonOhioUSA
| | - Ahmad Salem
- Department of Internal MedicineRochester Regional HealthUnity HospitalRochesterNew YorkUSA
| | - Ashish Kumar
- Section of Cardiovascular ResearchHeartVascular and Thoracic DepartmentCleveland Clinic Akron GeneralAkronOhioUSA
- Department of Internal MedicineCleveland Clinic Akron GeneralAkronOhioUSA
| | - Mahmood Mubasher
- Department of Internal MedicineRochester Regional HealthUnity HospitalRochesterNew YorkUSA
| | | | - Mohamed Magdi
- Department of Internal MedicineRochester Regional HealthUnity HospitalRochesterNew YorkUSA
| | - Sarathlal Renjithlal
- Department of Internal MedicineRochester Regional HealthUnity HospitalRochesterNew YorkUSA
| | - Mohamed Abdelazeem
- Department of Internal MedicineSt. Elizabeth Medical CenterBrightonMassachusettsUSA
| | | | - Osarenren Idemudia
- Department of Internal MedicineRochester Regional HealthUnity HospitalRochesterNew YorkUSA
| | - Mounir Ibrahim
- Department of Internal MedicineHackensack Meridian Health Palisades Medical CenterNorth BergenNew JerseyUSA
| | - Amr Mohamed
- Department of Internal MedicineRochester General HospitalRochesterNew YorkUSA
| | | | - Harsh Patel
- Department of Internal MedicineLouis A Weiss Memorial HospitalChicagoIllinoisUSA
| | - Mohamed Diab
- Department of Internal MedicineRochester Regional HealthUnity HospitalRochesterNew YorkUSA
| | - Andras Szeles
- Department of Internal MedicineRochester Regional HealthUnity HospitalRochesterNew YorkUSA
| | - Fadi Ibrahim
- American University of AntiguaAntigua and Barbuda
| | - Roshan Jha
- Department of Internal MedicineHackensack Meridian Health Palisades Medical CenterNorth BergenNew JerseyUSA
| | - Medhat Chowdhury
- Department of Internal MedicineRochester General HospitalRochesterNew YorkUSA
| | - Navya Akula
- Department of Internal MedicineRochester Regional HealthUnity HospitalRochesterNew YorkUSA
| | - Ankur Kalra
- Section of Cardiovascular ResearchHeartVascular and Thoracic DepartmentCleveland Clinic Akron GeneralAkronOhioUSA
- Department of Cardiovascular MedicineHeart, Vascular, and Thoracic InstituteCleveland ClinicClevelandOhioUSA
| | - Navin C. Nanda
- Division of Cardiovascular DiseaseDepartment of MedicineUniversity of Alabama at BirminghamBirminghamAlabamaUSA
| |
Collapse
|
11
|
Barssoum K, Patel H, Rai D, Kumar A, Hassib M, Othman HF, Thakkar S, El Karyoni A, Idemudia O, Ibrahim F, Salem T, Shariff M, Jabri A, ElBadawi A, Khodjaev S, Bandyopadhyay D, Aronow WS, Parikh V, Rao M, Soon P. Outcomes of Cardiac Arrest and Cardiopulmonary Resuscitation in Patients With Left Ventricular Assist Device; an Insight From a National Inpatient Sample. Heart Lung Circ 2021; 31:246-254. [PMID: 34226105 DOI: 10.1016/j.hlc.2021.05.096] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 05/06/2021] [Accepted: 05/10/2021] [Indexed: 01/14/2023]
Abstract
BACKGROUND Outcomes of patients with implanted left ventricular assist device (LVAD) implantation experiencing a cardiac arrest (CA) are not well reported. We aimed at defining the in-hospital outcomes of patients with implanted LVAD experiencing a CA. METHODS The national inpatient sample (NIS) was queried using ICD9/ICD10 codes for patients older than 18 years with implanted LVAD and CA between 2010-2018. We excluded patients with orthotropic heart transplantation, biventricular assist device (BiVAD) implantation and do not resuscitate (DNR) status. RESULTS A total of 93,153 hospitalisations between 2010 and 2018 with implanted LVAD were identified. Only 578 of these hospitalisations had experienced CA and of those, 173 (33%) hospitalisations underwent cardiopulmonary resuscitation (CPR). The mean age of hospitalisations that experienced a CA was 60.61±14.85 for non-survivors and 56.23±17.33 for survivors (p=0.14). The in-hospital mortality was 60.8 % in hospitalisations with CA and 74.33% in hospitalisations in whom CPR was performed. In an analysis comparing survivors with non-survivors, non-survivors had more diabetes mellitus (DM) (p=0.01), and ischaemic heart disease (IHD) (p=0.04). Age, female sex, peripheral vascular disease and history of coronary artery bypass graft (CABG) were independently associated with increased mortality in our cohort. Also, ventricular tachycardia (VT) and CPR were independently associated with in-hospital mortality. During the study period, there was a significantly decreasing trend in performing CPR in LVAD hospitalisations with CA. CONCLUSION In conclusion, age, female sex, peripheral vascular disease, history of CABG, VT and CPR were independently associated with in-hospital mortality in LVAD hospitalisations who experienced CA.
Collapse
Affiliation(s)
- Kirolos Barssoum
- Department of Internal Medicine, Rochester General Hospital, Rochester, NY, USA; Department of Internal Medicine, Unity Hospital, Rochester Regional Health System, Rochester, NY, USA.
| | - Harsh Patel
- Department of Internal Medicine, Louis A Weiss Memorial Hospital, Chicago, IL, USA
| | - Devesh Rai
- Department of Internal Medicine, Rochester General Hospital, Rochester, NY, USA
| | - Ashish Kumar
- Department of Internal Medicine, Cleveland Clinic Akron General, Akron, OH, USA
| | | | - Hasan F Othman
- Michigan State University/Sparrow Health System, Lansing, MI, USA
| | | | - Ahmed El Karyoni
- Cardiovascular Department, Loyola University Medical Center, IL, USA
| | - Osarenren Idemudia
- Department of Internal Medicine, Unity Hospital, Rochester Regional Health System, Rochester, NY, USA
| | - Fadi Ibrahim
- American University of Antigua, Antigua and Barbuda
| | - Tala Salem
- Department of Internal Medicine, Unity Hospital, Rochester Regional Health System, Rochester, NY, USA
| | - Mariam Shariff
- Department of General Surgery, Mayo Clinic, Rochester, MN, USA
| | - Ahmad Jabri
- Heart and Vascular Center, Case Western Reserve University/MetroHealth Medical Center, Cleveland, OH, USA
| | - Ayman ElBadawi
- Department of Cardiovascular Medicine, University of Texas Medical Branch, Galveston, TX, USA; Department of Cardiovascular Medicine, Ain Shams University, Cairo, Egypt
| | - Soidjon Khodjaev
- Department of Advanced Heart Failure and Transplant, Sands-Constellation Heart Institute, Rochester Regional Health, Rochester, NY, USA
| | | | - Wilbert S Aronow
- Department of Cardiology, New York Medical College at Westchester Medical Center, New York, NY, USA
| | - Vishal Parikh
- Department of Advanced Heart Failure and Transplant, Sands-Constellation Heart Institute, Rochester Regional Health, Rochester, NY, USA
| | - Mohan Rao
- Department of Cardiology, Sands-Constellation Heart Institute, Rochester Regional Health, Rochester, NY, USA
| | - Park Soon
- Department of Advanced Heart Failure and Transplant, Sands-Constellation Heart Institute, Rochester Regional Health, Rochester, NY, USA
| |
Collapse
|
12
|
Barssoum K, Kumar A, Thakkar S, Sheth AR, Kharsa A, Ibrahim M, Rai D, Idemudia O, Akula N, Patel HP, Mowafy A, Elkaryoni A, Ibrahim F, Mubasher M, Ghattas KN, Rao M. Meta-analysis of Safety and Efficacy of Anticoagulation versus no Anticoagulation in Octogenarians and Nonagenarians with Atrial Fibrillation. High Blood Press Cardiovasc Prev 2021; 28:271-282. [PMID: 33742366 DOI: 10.1007/s40292-021-00442-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Accepted: 02/24/2021] [Indexed: 11/28/2022] Open
Abstract
INTRODUCTION The role of anticoagulation in octogenarians and nonagenarians with atrial fibrillation (AF) is controversial due to the lack of evidence from randomized controlled trials (RCTs), owing to the under representation of these patients in clinical trials. AIM In the present meta-analysis we aim at comparing the clinical benefits and risk of anticoagulation (AC) with no AC in octogenarians and nonagenarians. METHODS We systematically searched MEDLINE/PubMed, EMBASE/Ovid, and Web of Science databases from the inception to October, 2020. Studies were eligible for inclusion if they met the following criteria: studies comparing AC with no AC in patients aged 80 or more for AF and reported thromboembolic events (TE) and bleeding outcomes. We used Mantel-Haenszel method with a Paule-Mandel estimator of Tau2 with Hartung Knapp-Sidik-Jonkman adjustment to estimate risk ratio (RR) with a 95% confidence interval (CI). Outlier analysis was used to adjust for statistical heterogeneity. RESULTS A total of 10 observation studies and 1 RCT were included in the final analysis. There was no difference in the risk of TE with AC in octogenarians and nonagenarians compared with no AC, before [RR: 0.87, 95% CI 0.62-1.23, I2: 71%, GRADE confidence "very low"] and after [RR: 0.83, 95% CI 0.66-1.04, I2: 55.5%] adjusting for statistical heterogeneity among studies. In the unadjusted analysis, no difference in the risk of bleeding events was observed between both groups [RR: 1.05, 95% CI 0.62-1.77, I2: 86%, GRADE confidence "very low"]. After adjusting for heterogeneity, AC was associated with an increased risk of bleeding compared with those not receiving AC [RR: 1.57, 95% CI 1.44-1.71, I2: 0%]. AC in octogenarians was not associated with a net clinical benefit compared with no AC. CONCLUSIONS This meta-analysis did not demonstrate any difference in the risk TE in octogenarians and nonagenarians with AF on AC vs. no AC, in both the adjusted and unadjusted analyses. Also, the risk of bleeding events in the unadjusted analysis was similar between both groups. The adjusted analysis showed an increased risk of bleeding in the AC group compared with no AC group. More data is needed to establish safety and efficacy of AC in this vulnerable patient population. The results of this analysis should be interpreted with caution due to the observational nature of most studies included, and the only RCT reported lower rates of TE and similar risk of bleeding.
Collapse
Affiliation(s)
- Kirolos Barssoum
- Department of Internal Medicine, Rochester Regional Health, Unity Hospital, Rochester, NY, USA. .,Department of Internal Medicine, Rochester General Hospital, Rochester, NY, USA.
| | - Ashish Kumar
- Department of Critical Care Medicine, St. John's Medical College, Bangalore, India
| | | | - Aakash R Sheth
- Department of Internal Medicine, LSU Health Sciences Center, Shreveport, LA, USA
| | - Adnan Kharsa
- Department of Internal Medicine, Rochester General Hospital, Rochester, NY, USA
| | - Mounir Ibrahim
- Department of Internal Medicine, Hackensack Meridian Health Palisades Medical Center, Bergen, NJ, USA
| | - Devesh Rai
- Department of Internal Medicine, Rochester General Hospital, Rochester, NY, USA
| | - Osarenren Idemudia
- Department of Internal Medicine, Rochester Regional Health, Unity Hospital, Rochester, NY, USA
| | - Navya Akula
- Department of Internal Medicine, Rochester Regional Health, Unity Hospital, Rochester, NY, USA
| | - Harsh P Patel
- Department of Internal Medicine, Louis A Weiss Memorial Hospital, Chicago, IL, USA
| | - Ahmed Mowafy
- Rutgers New Jersey Medical School, Trinitas Regional Medical Center, Elizabeth, NJ, USA
| | - Ahmed Elkaryoni
- Division of Cardiovascular Disease, Loyola Stritch School of Medicine, Loyola University Medical Cemter, Maywood, IL, USA
| | - Fadi Ibrahim
- American University of Antigua, Antigua, Barbuda, USA
| | - Mahmood Mubasher
- Department of Internal Medicine, Rochester Regional Health, Unity Hospital, Rochester, NY, USA
| | | | - Mohan Rao
- Department of Cardiology, Sands-Constellation Heart Institute, Rochester Regional Health, Rochester, NY, USA
| |
Collapse
|
13
|
Wilson JN, Thisse D, Lebois M, Jovančević N, Gjestvang D, Canavan R, Rudigier M, Étasse D, Gerst RB, Gaudefroy L, Adamska E, Adsley P, Algora A, Babo M, Belvedere K, Benito J, Benzoni G, Blazhev A, Boso A, Bottoni S, Bunce M, Chakma R, Cieplicka-Oryńczak N, Courtin S, Cortés ML, Davies P, Delafosse C, Fallot M, Fornal B, Fraile L, Gottardo A, Guadilla V, Häfner G, Hauschild K, Heine M, Henrich C, Homm I, Ibrahim F, Iskra ŁW, Ivanov P, Jazrawi S, Korgul A, Koseoglou P, Kröll T, Kurtukian-Nieto T, Le Meur L, Leoni S, Ljungvall J, Lopez-Martens A, Lozeva R, Matea I, Miernik K, Nemer J, Oberstedt S, Paulsen W, Piersa M, Popovitch Y, Porzio C, Qi L, Ralet D, Regan PH, Rezynkina K, Sánchez-Tembleque V, Siem S, Schmitt C, Söderström PA, Sürder C, Tocabens G, Vedia V, Verney D, Warr N, Wasilewska B, Wiederhold J, Yavahchova M, Zeiser F, Ziliani S. Angular momentum generation in nuclear fission. Nature 2021; 590:566-570. [PMID: 33627809 DOI: 10.1038/s41586-021-03304-w] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Accepted: 12/09/2020] [Indexed: 01/31/2023]
Abstract
When a heavy atomic nucleus splits (fission), the resulting fragments are observed to emerge spinning1; this phenomenon has been a mystery in nuclear physics for over 40 years2,3. The internal generation of typically six or seven units of angular momentum in each fragment is particularly puzzling for systems that start with zero, or almost zero, spin. There are currently no experimental observations that enable decisive discrimination between the many competing theories for the mechanism that generates the angular momentum4-12. Nevertheless, the consensus is that excitation of collective vibrational modes generates the intrinsic spin before the nucleus splits (pre-scission). Here we show that there is no significant correlation between the spins of the fragment partners, which leads us to conclude that angular momentum in fission is actually generated after the nucleus splits (post-scission). We present comprehensive data showing that the average spin is strongly mass-dependent, varying in saw-tooth distributions. We observe no notable dependence of fragment spin on the mass or charge of the partner nucleus, confirming the uncorrelated post-scission nature of the spin mechanism. To explain these observations, we propose that the collective motion of nucleons in the ruptured neck of the fissioning system generates two independent torques, analogous to the snapping of an elastic band. A parameterization based on occupation of angular momentum states according to statistical theory describes the full range of experimental data well. This insight into the role of spin in nuclear fission is not only important for the fundamental understanding and theoretical description of fission, but also has consequences for the γ-ray heating problem in nuclear reactors13,14, for the study of the structure of neutron-rich isotopes15,16, and for the synthesis and stability of super-heavy elements17,18.
Collapse
Affiliation(s)
- J N Wilson
- Université Paris-Saclay, CNRS/IN2P3, IJC Laboratory, Orsay, France.
| | - D Thisse
- Université Paris-Saclay, CNRS/IN2P3, IJC Laboratory, Orsay, France
| | - M Lebois
- Université Paris-Saclay, CNRS/IN2P3, IJC Laboratory, Orsay, France
| | - N Jovančević
- Université Paris-Saclay, CNRS/IN2P3, IJC Laboratory, Orsay, France
| | - D Gjestvang
- Department of Physics, University of Oslo, Blindern, Oslo, Norway
| | - R Canavan
- Department of Physics, University of Surrey, Guildford, UK.,National Physical Laboratory, Teddington, UK
| | - M Rudigier
- Department of Physics, University of Surrey, Guildford, UK.,Technische Universität Darmstadt, Fachbereich Physik, Institut für Kernphysik, Darmstadt, Germany
| | | | - R-B Gerst
- Institut für Kernphysik, Universität zu Köln, Cologne, Germany
| | | | - E Adamska
- Faculty of Physics, University of Warsaw, Warsaw, Poland
| | - P Adsley
- Université Paris-Saclay, CNRS/IN2P3, IJC Laboratory, Orsay, France
| | - A Algora
- IFIC, CSIC-University of Valencia, Valencia, Spain.,Institute for Nuclear Research (Atomki), Debrecen, Hungary
| | - M Babo
- Université Paris-Saclay, CNRS/IN2P3, IJC Laboratory, Orsay, France
| | - K Belvedere
- Department of Physics, University of Surrey, Guildford, UK
| | - J Benito
- Grupo de Fisica Nuclear & IPARCOS, Universidad Complutense de Madrid, CEI Moncloa, Madrid, Spain
| | | | - A Blazhev
- Institut für Kernphysik, Universität zu Köln, Cologne, Germany
| | - A Boso
- National Physical Laboratory, Teddington, UK
| | - S Bottoni
- INFN, Milan, Italy.,Dipartimento di Fisica, Universitá degli Studi di Milano, Milan, Italy
| | - M Bunce
- National Physical Laboratory, Teddington, UK
| | - R Chakma
- Université Paris-Saclay, CNRS/IN2P3, IJC Laboratory, Orsay, France
| | | | - S Courtin
- Université de Strasbourg, CNRS, IPHC UMR 7178, Strasbourg, France
| | | | - P Davies
- School of Physics and Astronomy, University of Manchester, Manchester, UK
| | - C Delafosse
- Université Paris-Saclay, CNRS/IN2P3, IJC Laboratory, Orsay, France
| | - M Fallot
- Subatech, IMT-Atlantique, Université de Nantes, Nantes, France
| | - B Fornal
- Institute of Nuclear Physics, Polish Academy of Sciences, Krakow, Poland
| | - L Fraile
- Grupo de Fisica Nuclear & IPARCOS, Universidad Complutense de Madrid, CEI Moncloa, Madrid, Spain
| | - A Gottardo
- INFN Laboratori Nazionali di Legnaro, Legnaro, Italy
| | - V Guadilla
- Subatech, IMT-Atlantique, Université de Nantes, Nantes, France
| | - G Häfner
- Université Paris-Saclay, CNRS/IN2P3, IJC Laboratory, Orsay, France.,Institut für Kernphysik, Universität zu Köln, Cologne, Germany
| | - K Hauschild
- Université Paris-Saclay, CNRS/IN2P3, IJC Laboratory, Orsay, France
| | - M Heine
- Université de Strasbourg, CNRS, IPHC UMR 7178, Strasbourg, France
| | - C Henrich
- Technische Universität Darmstadt, Fachbereich Physik, Institut für Kernphysik, Darmstadt, Germany
| | - I Homm
- Technische Universität Darmstadt, Fachbereich Physik, Institut für Kernphysik, Darmstadt, Germany
| | - F Ibrahim
- Université Paris-Saclay, CNRS/IN2P3, IJC Laboratory, Orsay, France
| | - Ł W Iskra
- INFN, Milan, Italy.,Institute of Nuclear Physics, Polish Academy of Sciences, Krakow, Poland
| | - P Ivanov
- National Physical Laboratory, Teddington, UK
| | - S Jazrawi
- Department of Physics, University of Surrey, Guildford, UK.,National Physical Laboratory, Teddington, UK
| | - A Korgul
- Faculty of Physics, University of Warsaw, Warsaw, Poland
| | - P Koseoglou
- Technische Universität Darmstadt, Fachbereich Physik, Institut für Kernphysik, Darmstadt, Germany.,GSI Helmoltzzentrum für Schwerionenforschung GmbH, Darmstadt, Germany
| | - T Kröll
- Technische Universität Darmstadt, Fachbereich Physik, Institut für Kernphysik, Darmstadt, Germany
| | | | - L Le Meur
- Subatech, IMT-Atlantique, Université de Nantes, Nantes, France
| | - S Leoni
- INFN, Milan, Italy.,Dipartimento di Fisica, Universitá degli Studi di Milano, Milan, Italy
| | - J Ljungvall
- Université Paris-Saclay, CNRS/IN2P3, IJC Laboratory, Orsay, France
| | - A Lopez-Martens
- Université Paris-Saclay, CNRS/IN2P3, IJC Laboratory, Orsay, France
| | - R Lozeva
- Université Paris-Saclay, CNRS/IN2P3, IJC Laboratory, Orsay, France
| | - I Matea
- Université Paris-Saclay, CNRS/IN2P3, IJC Laboratory, Orsay, France
| | - K Miernik
- Faculty of Physics, University of Warsaw, Warsaw, Poland
| | - J Nemer
- Université Paris-Saclay, CNRS/IN2P3, IJC Laboratory, Orsay, France
| | - S Oberstedt
- European Commission, Joint Research Centre, Geel, Belgium
| | - W Paulsen
- Department of Physics, University of Oslo, Blindern, Oslo, Norway
| | - M Piersa
- Faculty of Physics, University of Warsaw, Warsaw, Poland
| | - Y Popovitch
- Université Paris-Saclay, CNRS/IN2P3, IJC Laboratory, Orsay, France
| | - C Porzio
- INFN, Milan, Italy.,Dipartimento di Fisica, Universitá degli Studi di Milano, Milan, Italy.,TRIUMF, Vancouver, British Columbia, Canada
| | - L Qi
- Université Paris-Saclay, CNRS/IN2P3, IJC Laboratory, Orsay, France
| | - D Ralet
- Grand Accélérateur National d'Ions Lourds, Caen, France
| | - P H Regan
- Department of Physics, University of Surrey, Guildford, UK.,National Physical Laboratory, Teddington, UK
| | - K Rezynkina
- Institute for Nuclear and Radiation Physics, Katholieke Universiteit Leuven, Leuven, Belgium
| | - V Sánchez-Tembleque
- Grupo de Fisica Nuclear & IPARCOS, Universidad Complutense de Madrid, CEI Moncloa, Madrid, Spain
| | - S Siem
- Department of Physics, University of Oslo, Blindern, Oslo, Norway
| | - C Schmitt
- Université de Strasbourg, CNRS, IPHC UMR 7178, Strasbourg, France
| | - P-A Söderström
- Technische Universität Darmstadt, Fachbereich Physik, Institut für Kernphysik, Darmstadt, Germany.,Extreme Light Infrastructure-Nuclear Physics, Horia Hulubei National Institute for Physics and Nuclear Engineering, Bucharest-Măgurele, Romania
| | - C Sürder
- Technische Universität Darmstadt, Fachbereich Physik, Institut für Kernphysik, Darmstadt, Germany
| | - G Tocabens
- Université Paris-Saclay, CNRS/IN2P3, IJC Laboratory, Orsay, France
| | - V Vedia
- Grupo de Fisica Nuclear & IPARCOS, Universidad Complutense de Madrid, CEI Moncloa, Madrid, Spain
| | - D Verney
- Université Paris-Saclay, CNRS/IN2P3, IJC Laboratory, Orsay, France
| | - N Warr
- Institut für Kernphysik, Universität zu Köln, Cologne, Germany
| | - B Wasilewska
- Institute of Nuclear Physics, Polish Academy of Sciences, Krakow, Poland
| | - J Wiederhold
- Technische Universität Darmstadt, Fachbereich Physik, Institut für Kernphysik, Darmstadt, Germany
| | - M Yavahchova
- Institute for Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - F Zeiser
- Department of Physics, University of Oslo, Blindern, Oslo, Norway
| | - S Ziliani
- INFN, Milan, Italy.,Dipartimento di Fisica, Universitá degli Studi di Milano, Milan, Italy
| |
Collapse
|
14
|
Ibrahim F, Samarawickrama A, Hamzah L, Vincent R, Gilleece Y, Waters L, Kegg S, Barbini B, Campbell L, Post FA. Bone mineral density, kidney function, weight gain and insulin resistance in women who switch from TDF/FTC/NNRTI to ABC/3TC/DTG. HIV Med 2020; 22:83-91. [PMID: 32985122 DOI: 10.1111/hiv.12961] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/24/2020] [Indexed: 01/13/2023]
Abstract
OBJECTIVES Tenofovir disoproxil fumarate (TDF) is associated with reduced bone mineral density (BMD). We evaluated changes in BMD in women who switched from TDF, emtricitabine and a nonnucleoside reverse transcriptase inhibitor (TDF/FTC/NNRTI) to abacavir, lamivudine and dolutegravir (ABC/3TC/DTG). METHODS We conducted a randomized controlled trial in which women aged ≥40 years were randomized 1:2 to continue TDF/FTC/NNRTI or switch to ABC/3TC/DTG. The primary endpoint was change in total hip BMD measured by dual-energy X-ray absorptiometry at week 48. Secondary endpoints were changes in BMD of the lumbar spine and femoral neck and markers of bone turnover and kidney function up to week 48. We conducted exploratory analyses of weight gain, insulin resistance and metabolic syndrome. Primary and secondary endpoints were analysed by linear regression, with multiple imputation for missing time points. RESULTS In all, 91 women [mean age = 50.4 (standard deviation [SD] = 6.6) years, median CD4 cell count = 600 (interquartile range: 479-800) cells/µL] were randomized. Women who switched to ABC/3TC/DTG maintained viral suppression and experienced improvements in total hip BMD (mean adjusted difference = 1%, P = 0.027) and lumbar spine BMD (3%, P = 0.002), with no change in specific markers of bone turnover or renal tubular function. Although participants in the ABC/3TC/DTG arm gained more weight (1.8 kg, P = 0.046), the switch strategy was not associated with reduced insulin sensitivity or new-onset metabolic syndrome. CONCLUSIONS Switching from TDF/FTC/NNRTI to ABC/3TC/DTG resulted in improved BMD. Although weight gain was common in women who switched from TDF/FTC/NNRTI to ABC/3TC/DTG, we did not detect adverse effects on glucose homeostasis. Larger studies need to confirm these findings.
Collapse
Affiliation(s)
| | | | - L Hamzah
- St George's Healthcare NHS Trust, London, UK
| | - R Vincent
- North Middlesex University Hospital, London, UK
| | - Y Gilleece
- Brighton and Sussex University Hospitals, Brighton, UK
| | - L Waters
- Mortimer Market Centre, London, UK
| | - S Kegg
- Lewisham and Greenwich NHS Trust, London, UK
| | - B Barbini
- King's College Hospital NHS Foundation Trust, London, UK
| | - L Campbell
- King's College London, London, UK.,King's College Hospital NHS Foundation Trust, London, UK
| | - F A Post
- King's College London, London, UK.,King's College Hospital NHS Foundation Trust, London, UK
| | | |
Collapse
|
15
|
Shafi H, Velswamy K, Ibrahim F, Huang B. A hierarchical constrained reinforcement learning for optimization of bitumen recovery rate in a primary separation vessel. Comput Chem Eng 2020. [DOI: 10.1016/j.compchemeng.2020.106939] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
16
|
Ibrahim F, Campbell L, Bailey AC, Stockwell S, Waters L, Orkin C, Johnson M, Gompels M, De Burgh-Thomas A, Jones R, Schembri G, Mallon PW, Post FA. Estimated glomerular filtration rate slopes on tenofovir alafenamide. HIV Med 2020; 21:607-612. [PMID: 33021067 DOI: 10.1111/hiv.12899] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/27/2020] [Indexed: 12/13/2022]
Abstract
OBJECTIVES The aim of the study was to analyse and compare estimated glomerular filtration rate (eGFR) slopes during exposure to tenofovir disoproxil fumarate (TDF) and tenofovir alafenamide (TAF) in individuals who initiated TAF, regardless of prior regimen, before October 2016. METHODS An observational cohort study was conducted at 11 clinics in the UK and Ireland. Mixed effects models with random intercept and time terms fitted were used to generate and compare eGFR slopes while participants were exposed to TDF and TAF, with adjustment for age, eGFR at TDF/TAF initiation, gender, ethnicity, and time-updated CD4 cell count and HIV RNA measurements. RESULTS Data were available for 357 subjects (median age 50 years; 80% male; 82% white/other ethnicity; 51% men who have sex with men; median nadir CD4 count 216 cells/µL). The median duration of exposure to TAF was 2.0 (interquartile range 1.6, 2.3) years. At TAF initiation, the median CD4 count was 557 cells/µL, the median eGFR was 80 mL/min/1.73 m2, and 86% had suppressed HIV infection. The mean adjusted eGFR slope during TDF and TAF exposure was -2.08 [95% confidence interval (CI) -2.24, -1.92] and 1.18 (95% CI 0.20, 1.52) mL/min/1.73 m2/year, respectively (P < 0.001). Individuals who experienced rapid eGFR decline (> 3 or 5 mL/min/1.73 m2/year) while receiving TDF experienced significant eGFR recovery while on TAF (P < 0.001). CONCLUSIONS Significant improvement in eGFR slope was observed in patients who switched from TDF- to TAF-containing antiretroviral regimens. These data provide further support for the renal safety of TAF, and for switching those who experience progressive worsening of renal function from TDF to TAF.
Collapse
Affiliation(s)
| | - L Campbell
- King's College Hospital NHS Foundation Trust, London, UK
| | | | | | - L Waters
- Mortimer Market Centre, London, UK
| | - C Orkin
- Barts Health NHS Trust, London, UK
| | - M Johnson
- Royal Free Hospital NHS Foundation Trust, London, UK
| | - M Gompels
- North Bristol NHS Trust, Bristol, UK
| | | | - R Jones
- Chelsea and Westminster Hospital NHS Foundation Trust, London, UK
| | - G Schembri
- Central Manchester University Hospitals NHS Foundation Trust, Manchester, UK
| | - P W Mallon
- University College Dublin, Dublin, Ireland
| | - F A Post
- King's College London, London, UK.,King's College Hospital NHS Foundation Trust, London, UK
| |
Collapse
|
17
|
Ibrahim F, Natasha A, Saharman YR, Sudarmono P. Preliminary report of COVID-19 testing: experience of the clinical microbiology laboratory Universitas Indonesia, Jakarta, Indonesia. New Microbes New Infect 2020; 37:100733. [PMID: 32793354 PMCID: PMC7408335 DOI: 10.1016/j.nmni.2020.100733] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Revised: 07/15/2020] [Accepted: 07/17/2020] [Indexed: 12/25/2022] Open
Abstract
Indonesia first reported SARS-CoV-2 in March 2020. From March to April, clinical microbiology laboratory Universitas Indonesia in Jakarta received 4617 specimens with 12.6% positivity rate and 22% asymptomatic case. The result of this study could give an early picture of Indonesia’s COVID 19 outbreak situation.
Collapse
Affiliation(s)
- F Ibrahim
- Department of Clinical Microbiology, Faculty of Medicine, Universitas Indonesia/ Dr. Cipto Mangunkusumo General Hospital, Jakarta, Indonesia
| | - A Natasha
- Department of Clinical Microbiology, Faculty of Medicine, Universitas Indonesia/ Dr. Cipto Mangunkusumo General Hospital, Jakarta, Indonesia
| | - Y R Saharman
- Department of Clinical Microbiology, Faculty of Medicine, Universitas Indonesia/ Dr. Cipto Mangunkusumo General Hospital, Jakarta, Indonesia
| | - P Sudarmono
- Department of Clinical Microbiology, Faculty of Medicine, Universitas Indonesia/ Dr. Cipto Mangunkusumo General Hospital, Jakarta, Indonesia
| |
Collapse
|
18
|
Ma MHY, Defranoux N, Li W, Sasso EH, Ibrahim F, Scott DL, Cope AP. A multi-biomarker disease activity score can predict sustained remission in rheumatoid arthritis. Arthritis Res Ther 2020; 22:158. [PMID: 32580789 PMCID: PMC7313155 DOI: 10.1186/s13075-020-02240-w] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Accepted: 06/09/2020] [Indexed: 01/10/2023] Open
Abstract
Background Reliable assessment of remission is important for the optimal management of rheumatoid arthritis (RA) patients. In this study, we used the multi-biomarker disease activity (MBDA) test to explore the role of biomarkers in predicting point remission and sustained remission. Methods RA patients on > 6 months stable therapy in stable low disease activity (DAS28-ESR ≤ 3.2) were assessed every 3 months for 1 year. Baseline, intermittent (IR) and sustained (SR) remission were defined by DAS28-ESR, DAS28-CRP, simple disease activity index (SDAI), clinical disease activity index (CDAI) and ACR/EULAR Boolean criteria. Patients not fulfilling any remission criteria at baseline were classified as ‘low disease activity state’ (LDAS). Patients not fulfilling any remission criteria over 1 year were classified as ‘persistent disease activity’ (PDA). MBDA score was measured at baseline/3/6 months. The baseline MBDA score, the 6-month time-integrated MBDA score and MBDA biomarkers were used for analyses. The area under the receiver operating characteristic curve (AUROC) assessed the ability of the MBDA score to discriminate between remission and non-remission. Biomarkers were analysed at baseline using the Mann-Whitney test and over time using the Jonckheere-Terpstra trend test. Results Of 148 patients, 27% were in the LDAS, 65% DAS28-ESR remission, 51% DAS28-CRP remission, 40% SDAI remission, 43% CDAI remission and 25% ACR/EULAR Boolean remission at baseline. Over 1 year, 9% of patients were classified as PDA. IR and SR were achieved in 42%/47% by DAS28-ESR, 46%/29% by DAS28-CRP, 45%/20% by SDAI, 44%/21% by CDAI and 35%/9% by ACR/EULAR Boolean criteria, respectively. By all remission criteria, baseline MBDA score discriminated baseline remission (AUROCs 0.68–0.75) and IR/SR (AUROCs 0.65–0.74). The 6-month time-integrated MBDA score discriminated IR/SR (AUROCs 0.65–0.79). Baseline MBDA score and concentrations of IL-6, leptin, SAA and CRP were significantly lower in all baseline remission criteria groups vs LDAS. They and the 6-month time-integrated values were lower among patients who achieved IR/SR vs PDA over 1 year. Conclusions This study demonstrated that the MBDA score and its biomarkers IL-6, leptin, SAA and CRP differentiated between small differences in disease activity (i.e. between low disease activity and remission states). They were also predictors of remission over 1 year.
Collapse
Affiliation(s)
- M H Y Ma
- Academic Department of Rheumatology, Division of Immunology, Infection and Inflammatory Disease, Faculty of Life Sciences and Medicine, King's College London, Weston Education Centre, 10 Cutcombe Road., London, SE5 9RJ, UK. .,Level 10, Tower Block, Division of Rheumatology, University Medicine Cluster, National University Health System, 1E Kent Ridge Road, Singapore, 119228, Singapore. .,Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 119228, Singapore.
| | - N Defranoux
- Crescendo Bioscience, Inc., South San Francisco, CA, USA.,Present Address: Parker Institute for Cancer Immunotherapy, San Francisco, CA, USA
| | - W Li
- Crescendo Bioscience, Inc., South San Francisco, CA, USA.,MyoKardia, Inc., Brisbane, CA, USA
| | - E H Sasso
- Crescendo Bioscience, Inc., South San Francisco, CA, USA
| | - F Ibrahim
- Academic Department of Rheumatology, Division of Immunology, Infection and Inflammatory Disease, Faculty of Life Sciences and Medicine, King's College London, Weston Education Centre, 10 Cutcombe Road., London, SE5 9RJ, UK
| | - D L Scott
- Academic Department of Rheumatology, Division of Immunology, Infection and Inflammatory Disease, Faculty of Life Sciences and Medicine, King's College London, Weston Education Centre, 10 Cutcombe Road., London, SE5 9RJ, UK
| | - A P Cope
- Academic Department of Rheumatology, Division of Immunology, Infection and Inflammatory Disease, Faculty of Life Sciences and Medicine, King's College London, Weston Education Centre, 10 Cutcombe Road., London, SE5 9RJ, UK.,Department of Rheumatology, Guy's and St Thomas' UK National Health Service (NHS) Foundation Trust, London, UK
| |
Collapse
|
19
|
Boudou P, Djibré M, Ibrahim F, Fellahi S, Gilon P, Andreelli F, Ferré P, Boissan M. Massive lactic acidosis and ketoacidosis with glucagon deficiency in a chronic alcoholic patient. Diabetes Metab 2020; 47:101170. [PMID: 32531474 DOI: 10.1016/j.diabet.2020.05.011] [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] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Revised: 05/21/2020] [Accepted: 05/25/2020] [Indexed: 10/24/2022]
Affiliation(s)
- P Boudou
- Biochemistry and Hormonology Unit, Department of Biochemistry and Molecular Biology, Groupe Hospitalier Saint-Louis/Lariboisière Saint-Louis Hospital, Paris, France.
| | - M Djibré
- Service de Médecine Intensive Réanimation, Hôpital Tenon, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - F Ibrahim
- Biochemistry and Hormonology Unit, Department of Biochemistry and Molecular Biology, Groupe Hospitalier Saint-Louis/Lariboisière Saint-Louis Hospital, Paris, France
| | - S Fellahi
- INSERM UMR_S 938, Saint-Antoine Research Centre, Sorbonne Université, Paris, France; Service de Biochimie et Hormonologie, Hôpital Tenon, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - P Gilon
- Pole of Endocrinology, Diabetes and Nutrition, Institute of Experimental and Clinical Research, Université catholique de Louvain, Brussels, Belgium
| | - F Andreelli
- Diabetes Department, Hospital Pitié-Salpêtrière, Sorbonne Université, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - P Ferré
- Centre de recherche des Cordeliers, INSERM, Sorbonne Université, Université de Paris, 12, rue école de médecine, 75006 Paris, France; Department of Oncology and Endocrine Biochemistry, Pitié-Salpêtrière-Charles Foix University Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - M Boissan
- INSERM UMR_S 938, Saint-Antoine Research Centre, Sorbonne Université, Paris, France; Service de Biochimie et Hormonologie, Hôpital Tenon, Assistance Publique-Hôpitaux de Paris, Paris, France
| |
Collapse
|
20
|
Vinson D, Molet-Benhamou L, Degboé Y, den Broeder A, Ibrahim F, Pontes C, Westhovens R, Závada J, Pham T, Barnetche T, Constantin A, Ruyssen-Witrand A. Impact of tapering targeted therapies (bDMARDs or JAKis) on the risk of serious infections and adverse events of special interest in patients with rheumatoid arthritis or spondyloarthritis: a systematic analysis of the literature and meta-analysis. Arthritis Res Ther 2020; 22:97. [PMID: 32349791 PMCID: PMC7191828 DOI: 10.1186/s13075-020-02188-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Accepted: 04/17/2020] [Indexed: 12/17/2022] Open
Abstract
OBJECTIVES To systematically review the impact of tapering targeted therapies (bDMARDs or JAKis) on the risk of serious infections and severe adverse events (SAEs) in patients with rheumatoid arthritis (RA) or axial spondyloarthritis (axSpA) in remission or low disease activity (LDA) state. MATERIALS AND METHODS A meta-analysis based on a systematic review of PubMed, Embase, Cochrane, until August 2019, as well as relevant databases of international conferences, was used to evaluate the risk difference (RD) at 95% confidence interval (95% CI) of incidence density of serious infections, SAEs, malignancies, cardiovascular adverse events (CV AEs), or deaths after tapering (dose reduction or spacing) compared to continuation of targeted therapies. RESULTS Of the 1957 studies initially identified, 13 controlled trials (9 RA and 4 SpA trials) were included in the meta-analysis. 1174 patient-years were studied in the tapering group (TG) versus 1086 in the usual care group (UC). There were 1.7/100 patient-year (p-y) serious infections in TG versus 2.6/100 p-y in UC (RD (95% CI) 0.01 (0.00 to 0.02), p = 0.13) and 7.4/100 p-y SAEs in TG versus 6.7/100 p-y in UC (RD 0.00 (- 0.02 to 0.02), p = 0.82). The risk of malignancies, CV AEs, or deaths did not differ between the tapering and the usual care groups. Subgroup analysis (RA and SpA) detected no significant differences between the two groups. CONCLUSION We could not show significant impact of tapering bDMARD or JAKi over continuation concerning the risk of serious infections, SAEs, malignancies, CV AEs, or deaths in RA and SpA patients in remission or LDA state.
Collapse
Affiliation(s)
- D Vinson
- Rheumatology Department, CHU Sainte Marguerite, 270 Boulevard de Sainte-Marguerite, 13009, Marseille, France.
| | | | - Y Degboé
- INSERM U1043, CPTP, Toulouse, France
| | - A den Broeder
- Department of Rheumatology, Sint Maartenskliniek, 6500 GM, Nijmegen, The Netherlands
| | - F Ibrahim
- Centre for Rheumatic Diseases, Department of Inflammation Biology, Faculty of Life Sciences and Medicine, School of Immunology and Microbial Sciences, King's College London, Cutcombe Road, London, SE5 9RJ, UK
| | - C Pontes
- Department of Pharmacology, Therapeutics and Toxicology, Unitat docent Parc Taulí-Medical School-Universitat Autònoma de Barcelona, Sabadell, Barcelona, Spain
| | - R Westhovens
- Skeletal Biology and Engineering Research Center, Department of Development and Regeneration, Rheumatology University Hospitals Leuven, KULeuven, Leuven, Belgium
| | - J Závada
- First Faculty of Medicine, Institute of Rheumatology and Department of Rheumatology, Charles University, Na Slupi 4, Prague, Czech Republic
| | - T Pham
- Rheumatology Department, CHU Sainte Marguerite, 270 Boulevard de Sainte-Marguerite, 13009, Marseille, France
| | - T Barnetche
- Rheumatology Department, Pellegrin Hospital, Bordeaux, France
| | - A Constantin
- Rheumatology Department, Hôpital Purpan, Toulouse, France
| | | |
Collapse
|
21
|
Abstract
Abstract
A simple semlmlcro titrimetric assay procedure Is described for determination of 6 semisynthetic penicillins, namely: ampiclllin, amoxicillin, benzylpenlclllin, epiclllln, hetaclllin, and phenoxymethylpenlcillln In addition to penicillamine. The method Involves the use of 2-lodoxybenzoate as a standard solution, whereby a known, excess volume Is added to the penicillins in acid medium and, after the specified time, the residual reagent is iodometrically determined. The molar ratio of the reaction Is assessed and a possible pathway for the mechanism of the reaction is suggested and confirmed through thin-layer chromatography (TLC) study of the reaction products. The proposed method is then applied to determination of the studied compounds In their dosage forms. Results obtained are in good agreement with those obtained by official methods.
Collapse
Affiliation(s)
- F Belal,
- University of Mansoura, Faculty of Pharmacy, Department of Analytical Chemistry, Mansoura, Egypt
| | - A El-Brashy
- University of Mansoura, Faculty of Pharmacy, Department of Analytical Chemistry, Mansoura, Egypt
| | - F Ibrahim
- University of Mansoura, Faculty of Pharmacy, Department of Analytical Chemistry, Mansoura, Egypt
| |
Collapse
|
22
|
Hamzah L, Williams D, Bailey AC, Jones R, Ibrahim F, Musso CG, Burling K, Barbini B, Campbell L, Post FA. Early safety of tenofovir alafenamide in patients with a history of tubulopathy on tenofovir disoproxil fumarate: a randomized controlled clinical trial. HIV Med 2019; 21:198-203. [PMID: 31679186 DOI: 10.1111/hiv.12819] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/04/2019] [Indexed: 01/07/2023]
Abstract
OBJECTIVES The aim of the study was to assess the effect of tenofovir alafenamide (TAF) on kidney and bone biomarkers in patients who developed proximal renal tubulopathy (PRT) while receiving tenofovir disoproxil fumarate (TDF). METHODS Individuals with a history of TDF-associated PRT and currently suppressed HIV infection on a tenofovir-sparing regimen were randomized 1:1 to continue current antiretroviral therapy or initiate emtricitabine (F)/TAF with discontinuation of nucleoside reverse transcriptase inhibitors (NRTIs) as appropriate. Renal and bone biomarkers were analysed at baseline, week 4 and week 12. The primary outcome was the mean difference between study arms in urine retinol-binding protein:creatinine ratio (RBPCR) change from baseline to week 12. Data were analysed using linear regression, with robust standard errors (primary outcome), and repeated measures mixed effects models (secondary outcomes). The trial was registered under European Union Drug Regulating Authorities Clinical Trials Database 2016-003345-29. RESULTS We randomized 31 individuals [mean age 52.4 (standard deviation 0.3) years; 97% male; 90% white); all completed the study. At 12 weeks, there was no difference in change in RBPCR (β 19.6; 95% confidence interval -35.3, 74.5; P = 0.47), and no difference in change in estimated glomerular filtration rate (eGFR) (based on creatinine or cystatin C), albuminuria, proteinuria, renal phosphate or urea handling, (fasting) urine osmolality, parathyroid hormone and bone turnover markers in the control versus the F/TAF exposed groups. No cases of PRT were observed. CONCLUSIONS In people with a history of proximal renal tubulopathy while on TDF, 12-week exposure to TAF did not adversely affect renal tubular function. These data support continued evaluation of the long-term safety of TAF in this group of patients.
Collapse
Affiliation(s)
- L Hamzah
- St George's Healthcare NHS Trust, London, UK
| | - D Williams
- Brighton and Sussex University Hospitals, Brighton, UK
| | - A C Bailey
- Imperial College Healthcare NHS Trust, London, UK
| | - R Jones
- Chelsea and Westminster Hospital NHS Foundation Trust, London, UK
| | | | - C G Musso
- Italian Hospital, Buenos Aires, Argentina
| | - K Burling
- Core Biochemical Assay Laboratory, NIHR Cambridge Biomedical Research Centre, Cambridge, UK
| | - B Barbini
- King's College Hospital NHS Foundation Trust, London, UK
| | - L Campbell
- King's College Hospital NHS Foundation Trust, London, UK
| | - F A Post
- King's College London, London, UK.,King's College Hospital NHS Foundation Trust, London, UK
| | | |
Collapse
|
23
|
Fang M, Ibrahim F, Kodamana H, Huang B, Bell N, Nixon M. Hierarchically Distributed Monitoring for the Early Prediction of Gas Flare Events. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.8b06186] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Mengqi Fang
- Department of Chemical & Materials Engineering, University of Alberta, Edmonton, AB T6G 1H9, Canada
| | - Fadi Ibrahim
- Department of Chemical & Materials Engineering, University of Alberta, Edmonton, AB T6G 1H9, Canada
| | - Hariprasad Kodamana
- Department of Chemical & Materials Engineering, University of Alberta, Edmonton, AB T6G 1H9, Canada
| | - Biao Huang
- Department of Chemical & Materials Engineering, University of Alberta, Edmonton, AB T6G 1H9, Canada
| | - Noel Bell
- Emerson, 1100 W. Louis Henna Boulevard, Round Rock, Texas 78781-7430, United States
| | - Mark Nixon
- Emerson, 1100 W. Louis Henna Boulevard, Round Rock, Texas 78781-7430, United States
| |
Collapse
|
24
|
Lam YL, Lawson JA, Toonder IM, Shadid NH, Sommer A, Veenstra M, van der Kleij AMJ, Ceulen RP, de Haan E, Ibrahim F, van Dooren T, Nieman FH, Wittens CHA. Eight-year follow-up of a randomized clinical trial comparing ultrasound-guided foam sclerotherapy with surgical stripping of the great saphenous vein. Br J Surg 2019; 105:692-698. [PMID: 29652081 DOI: 10.1002/bjs.10762] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Revised: 09/24/2017] [Accepted: 10/20/2017] [Indexed: 12/14/2022]
Abstract
BACKGROUND This was an 8-year follow-up of an RCT comparing ultrasound-guided foam sclerotherapy (UGFS) with high ligation and surgical stripping (HL/S) of the great saphenous vein (GSV). METHODS Patients were randomized to UGFS or HL/S of the GSV. The primary outcome was the recurrence of symptomatic GSV reflux. Secondary outcomes were patterns of reflux according to recurrent varices after surgery, Clinical Etiologic Anatomic Pathophysiologic (CEAP) classification, Venous Clinical Severity Score (VCSS) and EuroQol Five Dimensions (EQ-5D™) quality-of-life scores. RESULTS Of 430 patients originally randomized (230 UGFS, 200 HL/S), 227 (52·8 per cent; 123 UGFS, 103 HL/S) were available for analysis after 8 years. The proportion of patients free from symptomatic GSV reflux at 8 years was lower after UGFS than HL/S (55·1 versus 72·1 per cent; P = 0·024). The rate of absence of GSV reflux, irrespective of venous symptoms, at 8 years was 33·1 and 49·7 per cent respectively (P = 0·009). More saphenofemoral junction (SFJ) failure (65·8 versus 41·7 per cent; P = 0·001) and recurrent reflux in the above-knee GSV (72·5 versus 20·4 per cent; P = 0·001) was evident in the UGFS group. The VCSS was worse than preoperative scores in both groups after 8 years; CEAP classification and EQ-5D® scores were similar in the two groups. CONCLUSION Surgical stripping had a technically better outcome in terms of recurrence of GSV and SFJ reflux than UGFS in the long term. Long-term follow-up suggests significant clinical progression of venous disease measured by VCSS in both groups, but less after surgery. Registration number: NCT02304146 (http://www.clinicaltrials.gov).
Collapse
Affiliation(s)
- Y L Lam
- Department of Venous Surgery, European Venous Centre, Maastricht, The Netherlands.,Department of Dermatology, Erasmus MC, Rotterdam, The Netherlands
| | - J A Lawson
- Skin and Vein Clinic Oosterwal, Alkmaar, The Netherlands
| | - I M Toonder
- Department of Venous Surgery, European Venous Centre, Maastricht, The Netherlands
| | - N H Shadid
- Department of Dermatology, Haaglanden Medisch Centrum Antoniushove, The Hague, The Netherlands
| | - A Sommer
- Parkwegkliniek Sommer, Maastricht, The Netherlands
| | - M Veenstra
- Department of Dermatology, Rijnstate Hospital, Arnhem, The Netherlands
| | - A M J van der Kleij
- Department of Dermatology, Zuyderland Medisch Centrum, Heerlen, The Netherlands
| | - R P Ceulen
- Ceulen Huidkliniek, Helmond, The Netherlands
| | - E de Haan
- Department of Surgery, Laurentius Hospital, Roermond, The Netherlands
| | - F Ibrahim
- Department of Dermatology, Maastricht University Medical Centre, Maastricht, The Netherlands
| | - T van Dooren
- Department of Otorhinolaryngology, Head and Neck Surgery, Maastricht University Medical Centre, Maastricht, The Netherlands
| | - F H Nieman
- Department of Venous Surgery, European Venous Centre, Maastricht, The Netherlands
| | - C H A Wittens
- Department of Venous Surgery, European Venous Centre, Maastricht, The Netherlands.,Department of Vascular Surgery, University Hospital Rheinisch-Westfälische Technische Hochschule Aachen, Nordrhein-Westfalen, Aachen, Germany
| |
Collapse
|
25
|
Scott IC, Ibrahim F, Panayi G, Cope AP, Garrood T, Vincent A, Scott DL, Kirkham B. The frequency of remission and low disease activity in patients with rheumatoid arthritis, and their ability to identify people with low disability and normal quality of life. Semin Arthritis Rheum 2018; 49:20-26. [PMID: 30685064 DOI: 10.1016/j.semarthrit.2018.12.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2018] [Revised: 11/29/2018] [Accepted: 12/21/2018] [Indexed: 01/04/2023]
Abstract
OBJECTIVE Treat-to-target in rheumatoid arthritis (RA) recommends targeting remission, with low disease activity (LDA) being an alternative goal. When deciding to target remission or LDA, important considerations are the likelihood of attaining them, and their impacts on function and health-related quality of life (HRQoL). We have addressed this by studying: (a) the frequency of remission and LDA/remission; (b) DAS28-ESR trends after remission; (c) ability of remission vs. LDA to identify patients with normal function (HAQ ≤ 0.5) and HRQoL (EQ-5D ≥ the normal population). METHODS We studied 571 patients in two clinical trials, and 1693 patients in a 10-year routine care cohort. We assessed the frequency and sustainability of remission and LDA/remission, variability in DAS28-ESR after remission, and sensitivity/specificity of remission and LDA/remission at identifying patients with low disability levels and normal HRQoL using Receiver Operator Characteristic (ROC) curves. RESULTS Point remission and remission/LDA were common (achieved by 35-58% and 49-74% of patients, respectively), but were rarely sustained (sustained remission and remission/LDA achieved by 5-9% and 9-16% of patients, respectively). Following attaining remission, DAS28-ESR levels varied substantially. Despite this, of those patients attaining point remission, the majority (53-61%) were in remission at study end-points. Whilst remission was highly specific at identifying patients with low disability (85-91%) it lacked sensitivity (51-57%); similar findings were seen for normal HRQoL (specificity 78-86%; sensitivity 52-59%). The optimal DAS28-cut-off to identify individuals with low disability and normal HRQoL was around the LDA threshold. CONCLUSIONS Our findings support both the treat-to-target goals. Attaining remission is highly specific for attaining low disability and normal HRQoL, although many patients with more active disease also have good function and HRQoL. Attaining a DAS28-ESR ≤ 3.2 has a better balance of specificity and sensitivity for attaining these outcomes, with the benefit of being more readily achievable. Although sustaining these targets over time is rare, even attaining them on a one-off basis leads to better function and HRQoL outcomes for patients.
Collapse
Affiliation(s)
- I C Scott
- Research Institute for Primary Care & Health Sciences, Primary Care Sciences, Keele University, Staffordshire, UK; Department of Rheumatology, Haywood Hospital, Midlands Partnership NHS Foundation Trust, High Lane, Burslem, Staffordshire, UK.
| | - F Ibrahim
- Department of Rheumatology, 3rd Floor, Weston Education Centre, King's College Hospital, Cutcombe Road, London, UK
| | - G Panayi
- Department of Rheumatology, Guy's and St Thomas' NHS Trust, 4th Floor, Tower Wing, Guy's Hospital, Great Maze Pond, London, UK
| | - A P Cope
- Department of Rheumatology, Guy's and St Thomas' NHS Trust, 4th Floor, Tower Wing, Guy's Hospital, Great Maze Pond, London, UK; Academic Department of Rheumatology, Centre for Molecular and Cellular Biology of Inflammation, 1st Floor, New Hunt's House, Guy's Campus, King's College London, Great Maze Pond, London, UK
| | - T Garrood
- Department of Rheumatology, Guy's and St Thomas' NHS Trust, 4th Floor, Tower Wing, Guy's Hospital, Great Maze Pond, London, UK
| | - A Vincent
- Department of Rheumatology, Guy's and St Thomas' NHS Trust, 4th Floor, Tower Wing, Guy's Hospital, Great Maze Pond, London, UK
| | - D L Scott
- Department of Rheumatology, 3rd Floor, Weston Education Centre, King's College Hospital, Cutcombe Road, London, UK
| | - B Kirkham
- Department of Rheumatology, Guy's and St Thomas' NHS Trust, 4th Floor, Tower Wing, Guy's Hospital, Great Maze Pond, London, UK; Academic Department of Rheumatology, Centre for Molecular and Cellular Biology of Inflammation, 1st Floor, New Hunt's House, Guy's Campus, King's College London, Great Maze Pond, London, UK
| |
Collapse
|
26
|
Delafosse C, Verney D, Marević P, Gottardo A, Michelagnoli C, Lemasson A, Goasduff A, Ljungvall J, Clément E, Korichi A, De Angelis G, Andreoiu C, Babo M, Boso A, Didierjean F, Dudouet J, Franchoo S, Gadea A, Georgiev G, Ibrahim F, Jacquot B, Konstantinopoulos T, Lenzi SM, Maquart G, Matea I, Mengoni D, Napoli DR, Nikšić T, Olivier L, Pérez-Vidal RM, Portail C, Recchia F, Redon N, Siciliano M, Stefan I, Stezowski O, Vretenar D, Zielinska M, Barrientos D, Benzoni G, Birkenbach B, Boston AJ, Boston HC, Cederwall B, Charles L, Ciemala M, Collado J, Cullen DM, Désesquelles P, de France G, Domingo-Pardo C, Eberth J, González V, Harkness-Brennan LJ, Hess H, Judson DS, Jungclaus A, Korten W, Lefevre A, Legruel F, Menegazzo R, Million B, Nyberg J, Quintana B, Ralet D, Reiter P, Saillant F, Sanchis E, Theisen C, Valiente Dobon JJ. Pseudospin Symmetry and Microscopic Origin of Shape Coexistence in the ^{78}Ni Region: A Hint from Lifetime Measurements. Phys Rev Lett 2018; 121:192502. [PMID: 30468583 DOI: 10.1103/physrevlett.121.192502] [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] [Received: 05/18/2018] [Revised: 08/27/2018] [Indexed: 06/09/2023]
Abstract
Lifetime measurements of excited states of the light N=52 isotones ^{88}Kr, ^{86}Se, and ^{84}Ge have been performed, using the recoil distance Doppler shift method and VAMOS and AGATA spectrometers for particle identification and gamma spectroscopy, respectively. The reduced electric quadrupole transition probabilities B(E2;2^{+}→0^{+}) and B(E2;4^{+}→2^{+}) were obtained for the first time for the hard-to-reach ^{84}Ge. While the B(E2;2^{+}→0^{+}) values of ^{88}Kr, ^{86}Se saturate the maximum quadrupole collectivity offered by the natural valence (3s, 2d, 1g_{7/2}, 1h_{11/2}) space of an inert ^{78}Ni core, the value obtained for ^{84}Ge largely exceeds it, suggesting that shape coexistence phenomena, previously reported at N≲49, extend beyond N=50. The onset of collectivity at Z=32 is understood as due to a pseudo-SU(3) organization of the proton single-particle sequence reflecting a clear manifestation of pseudospin symmetry. It is realized that the latter provides actually reliable guidance for understanding the observed proton and neutron single particle structure in the whole medium-mass region, from Ni to Sn, pointing towards the important role of the isovector-vector ρ field in shell-structure evolution.
Collapse
Affiliation(s)
- C Delafosse
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, F-91406 Orsay, France
| | - D Verney
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, F-91406 Orsay, France
| | - P Marević
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, F-91406 Orsay, France
- CEA, DAM, DIF, F-91297 Arpajon, France
| | - A Gottardo
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, F-91406 Orsay, France
| | - C Michelagnoli
- Grand Accélérateur National d'Ions Lourds (GANIL), CEA/DSM-CNRS/IN2P3, Caen F-14076, France
| | - A Lemasson
- Grand Accélérateur National d'Ions Lourds (GANIL), CEA/DSM-CNRS/IN2P3, Caen F-14076, France
| | - A Goasduff
- Instituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Legnaro, I-35020 Legnaro, Italy
| | - J Ljungvall
- CSNSM, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, F-91406 Orsay, France
| | - E Clément
- Grand Accélérateur National d'Ions Lourds (GANIL), CEA/DSM-CNRS/IN2P3, Caen F-14076, France
| | - A Korichi
- CSNSM, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, F-91406 Orsay, France
| | - G De Angelis
- Instituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Legnaro, I-35020 Legnaro, Italy
| | - C Andreoiu
- Departement of Chemistry, Simon Fraser University, Burnaby, British Columbia, V5A S16, Canada
| | - M Babo
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, F-91406 Orsay, France
- Grand Accélérateur National d'Ions Lourds (GANIL), CEA/DSM-CNRS/IN2P3, Caen F-14076, France
| | - A Boso
- Departimento di Fisica e Astronomia, Università di Padova, and INFN, Sezione di Padova, I-35131 Padova, Italy
| | - F Didierjean
- Université de Strasbourg, CNRS, IPHC UMR 7178, F-67000 Strasbourg, France
| | - J Dudouet
- Université Lyon, Université Lyon 1, CNRS/IN2P3, IPN-Lyon, F-69622, Villeurbanne, France
| | - S Franchoo
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, F-91406 Orsay, France
| | - A Gadea
- IFIC, CSIC-Universitat Valencia, Apartado Oficial 22085, 46071 Valencia, Spain
| | - G Georgiev
- CSNSM, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, F-91406 Orsay, France
| | - F Ibrahim
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, F-91406 Orsay, France
| | - B Jacquot
- Grand Accélérateur National d'Ions Lourds (GANIL), CEA/DSM-CNRS/IN2P3, Caen F-14076, France
| | - T Konstantinopoulos
- CSNSM, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, F-91406 Orsay, France
| | - S M Lenzi
- Departimento di Fisica e Astronomia, Università di Padova, and INFN, Sezione di Padova, I-35131 Padova, Italy
| | - G Maquart
- Université Lyon, Université Lyon 1, CNRS/IN2P3, IPN-Lyon, F-69622, Villeurbanne, France
| | - I Matea
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, F-91406 Orsay, France
| | - D Mengoni
- Departimento di Fisica e Astronomia, Università di Padova, and INFN, Sezione di Padova, I-35131 Padova, Italy
| | - D R Napoli
- Instituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Legnaro, I-35020 Legnaro, Italy
| | - T Nikšić
- Department of Physics, Faculty of Science, University of Zagreb, Bijenička c. 32, 10000 Zagreb, Croatia
| | - L Olivier
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, F-91406 Orsay, France
| | - R M Pérez-Vidal
- IFIC, CSIC-Universitat Valencia, Apartado Oficial 22085, 46071 Valencia, Spain
| | - C Portail
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, F-91406 Orsay, France
| | - F Recchia
- Departimento di Fisica e Astronomia, Università di Padova, and INFN, Sezione di Padova, I-35131 Padova, Italy
| | - N Redon
- Université Lyon, Université Lyon 1, CNRS/IN2P3, IPN-Lyon, F-69622, Villeurbanne, France
| | - M Siciliano
- Instituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Legnaro, I-35020 Legnaro, Italy
| | - I Stefan
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, F-91406 Orsay, France
| | - O Stezowski
- Université Lyon, Université Lyon 1, CNRS/IN2P3, IPN-Lyon, F-69622, Villeurbanne, France
| | - D Vretenar
- Department of Physics, Faculty of Science, University of Zagreb, Bijenička c. 32, 10000 Zagreb, Croatia
| | - M Zielinska
- CEA de Saclay, IRFU, F-91191 Gif-sur-Yvette, France
| | | | - G Benzoni
- INFN Sezione di Milano, I-20133 Milano, Italy
| | - B Birkenbach
- Institut für Kernphysik, Universität zu Köln, Zülpicher Strasse 77, D-50937 Köln, Germany
| | - A J Boston
- Oliver Lodge Laboratory, The University of Liverpool, Liverpool, L69 7ZE, United Kingdom
| | - H C Boston
- Oliver Lodge Laboratory, The University of Liverpool, Liverpool, L69 7ZE, United Kingdom
| | - B Cederwall
- Department of Physics, Royal Institute of Technology, SE-10691 Stockholm, Sweden
| | - L Charles
- Université de Strasbourg, CNRS, IPHC UMR 7178, F-67000 Strasbourg, France
| | - M Ciemala
- The Henryk Niewodniczański Institute of Nuclear Physics, Polish Academy of Sciences, ul. Radzikowskiego 152, 31-342 Kraków, Poland
| | - J Collado
- Departamento de Ingeniería Electrónica, Universitat de Valencia, Burjassot, Valencia 46100, Spain
| | - D M Cullen
- Nuclear Physics Group, Schuster Laboratory, University of Manchester, Manchester, M13 9PL, United Kingdom
| | - P Désesquelles
- CSNSM, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, F-91406 Orsay, France
| | - G de France
- Grand Accélérateur National d'Ions Lourds (GANIL), CEA/DSM-CNRS/IN2P3, Caen F-14076, France
| | - C Domingo-Pardo
- IFIC, CSIC-Universitat Valencia, Apartado Oficial 22085, 46071 Valencia, Spain
| | - J Eberth
- Institut für Kernphysik, Universität zu Köln, Zülpicher Strasse 77, D-50937 Köln, Germany
| | - V González
- Departamento de Ingeniería Electrónica, Universitat de Valencia, Burjassot, Valencia 46100, Spain
| | - L J Harkness-Brennan
- Oliver Lodge Laboratory, The University of Liverpool, Liverpool, L69 7ZE, United Kingdom
| | - H Hess
- Institut für Kernphysik, Universität zu Köln, Zülpicher Strasse 77, D-50937 Köln, Germany
| | - D S Judson
- Oliver Lodge Laboratory, The University of Liverpool, Liverpool, L69 7ZE, United Kingdom
| | - A Jungclaus
- Instituto de Estructura de la Materia, CSIC, Madrid, E-28006 Madrid, Spain
| | - W Korten
- CEA de Saclay, IRFU, F-91191 Gif-sur-Yvette, France
| | - A Lefevre
- Grand Accélérateur National d'Ions Lourds (GANIL), CEA/DSM-CNRS/IN2P3, Caen F-14076, France
| | - F Legruel
- Grand Accélérateur National d'Ions Lourds (GANIL), CEA/DSM-CNRS/IN2P3, Caen F-14076, France
| | - R Menegazzo
- Departimento di Fisica e Astronomia, Università di Padova, and INFN, Sezione di Padova, I-35131 Padova, Italy
| | - B Million
- INFN Sezione di Milano, I-20133 Milano, Italy
| | - J Nyberg
- Department of Physics and Astronomy, Uppsala University, SE-75120 Uppsala, Sweden
| | - B Quintana
- Laboratorio de Radiaciones Ionizantes, Universidad de Salamanca, E-37008 Salamanca, Spain
| | - D Ralet
- CSNSM, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, F-91406 Orsay, France
| | - P Reiter
- Institut für Kernphysik, Universität zu Köln, Zülpicher Strasse 77, D-50937 Köln, Germany
| | - F Saillant
- Grand Accélérateur National d'Ions Lourds (GANIL), CEA/DSM-CNRS/IN2P3, Caen F-14076, France
| | - E Sanchis
- Departamento de Ingeniería Electrónica, Universitat de Valencia, Burjassot, Valencia 46100, Spain
| | - Ch Theisen
- CEA de Saclay, IRFU, F-91191 Gif-sur-Yvette, France
| | - J J Valiente Dobon
- Instituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Legnaro, I-35020 Legnaro, Italy
| |
Collapse
|
27
|
Belal F, Ibrahim F, Sheribah Z, Alaa H. Novel univariate and multivariate regression methods for the simultaneous analysis of ternary mixture of 1, 4-benzodiazepines in dosage forms and human urine. Clin Chim Acta 2018; 482:108-119. [DOI: 10.1016/j.cca.2018.03.031] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2017] [Revised: 03/21/2018] [Accepted: 03/26/2018] [Indexed: 11/29/2022]
|
28
|
Mat Yasin Z, Khazali A, Ibrahim F, Nor Rashid N, Yusof R. Antioxidant and Enzyme Inhibitory Activities of Areca catechu, Boesenbergia rotunda, Piper betle and Orthosiphon aristatus for Potential Skin Anti-aging Properties. CURR TOP NUTRACEUT R 2018. [DOI: 10.37290/ctnr2641-452x.17:229-235] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Medicinal plants have been traditionally used for various applications including skin care. In this study, Areca catechu, Boesenbergia rotunda, Piper betle and Orthosiphon aristatus were tested for antioxidant and anti-aging properties. These plant extracts were subjected to 1,1-diphenyl-picrylhydrazyl (DPPH) and 2,2ʹ-azinobis(3-ethylbenzothiazoline)-6-sulphonic acid (ABTS) radical scavenging activity analyses. The extracts were then assessed for collagenase, elastase and hyaluronidase inhibition and subjected to toxicity study in normal human dermal fibroblast cells. Lastly, bioactive compounds in these plant extracts were identified using high performance liquid chromatography. We found that Piper betle and Areca catechu possessed high total flavonoid and phenolic contents. These two extracts showed the best IC50 values for DPPH and ABTS radical scavenging activities and also demonstrated the highest elastase and collagenase inhibition when compared to the other two plant extracts. These crude plants extracts were also non-toxic to normal human dermal fibroblast cells. Our HPLC results identified several potential bioactive compounds in these plant extracts that could be crucial in mediating the observed effects. Based on our results, these plant extracts especially Piper betle and Areca catechu extracts possess significant antioxidant and anti-aging properties and could be utilized in the development of safe and cost-effective anti-aging treatments.
Collapse
Affiliation(s)
- Z.A. Mat Yasin
- Department of Molecular Medicine, Faculty of Medicine, University of Malaya, 50603, Kuala Lumpur, Malaysia
| | - A.S. Khazali
- Department of Molecular Medicine, Faculty of Medicine, University of Malaya, 50603, Kuala Lumpur, Malaysia
| | - F. Ibrahim
- Department of Biomedical Engineering, Faculty of Engineering, University of Malaya, 50603, Kuala Lumpur, Malaysia
| | - N. Nor Rashid
- Department of Molecular Medicine, Faculty of Medicine, University of Malaya, 50603, Kuala Lumpur, Malaysia
| | - R. Yusof
- Department of Molecular Medicine, Faculty of Medicine, University of Malaya, 50603, Kuala Lumpur, Malaysia
| |
Collapse
|
29
|
Belal F, Ibrahim F, Sheribah ZA, Alaa H. New spectrophotometric/chemometric assisted methods for the simultaneous determination of imatinib, gemifloxacin, nalbuphine and naproxen in pharmaceutical formulations and human urine. Spectrochim Acta A Mol Biomol Spectrosc 2018; 198:51-60. [PMID: 29518680 DOI: 10.1016/j.saa.2018.02.048] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Revised: 02/12/2018] [Accepted: 02/18/2018] [Indexed: 05/29/2023]
Abstract
In this paper, novel univariate and multivariate regression methods along with model-updating technique were developed and validated for the simultaneous determination of quaternary mixture of imatinib (IMB), gemifloxacin (GMI), nalbuphine (NLP) and naproxen (NAP). The univariate method is extended derivative ratio (EDR) which depends on measuring every drug in the quaternary mixture by using a ternary mixture of the other three drugs as divisor. Peak amplitudes were measured at 294nm, 250nm, 283nm and 239nm within linear concentration ranges of 4.0-17.0, 3.0-15.0, 4.0-80.0 and 1.0-6.0μgmL-1 for IMB, GMI, NLP and NAB, respectively. Multivariate methods adopted are partial least squares (PLS) in original and derivative mode. These models were constructed for simultaneous determination of the studied drugs in the ranges of 4.0-8.0, 3.0-11.0, 10.0-18.0 and 1.0-3.0μgmL-1 for IMB, GMI, NLP and NAB, respectively, by using eighteen mixtures as a calibration set and seven mixtures as a validation set. The root mean square error of predication (RMSEP) were 0.09 and 0.06 for IMB, 0.14 and 0.13 for GMI, 0.07 and 0.02 for NLP and 0.64 and 0.27 for NAP by PLS in original and derivative mode, respectively. Both models were successfully applied for analysis of IMB, GMI, NLP and NAP in their dosage forms. Updated PLS in derivative mode and EDR were applied for determination of the studied drugs in spiked human urine. The obtained results were statistically compared with those obtained by the reported methods giving a conclusion that there is no significant difference regarding accuracy and precision.
Collapse
Affiliation(s)
- F Belal
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, University of Mansoura, 35516 Mansoura, Egypt
| | - F Ibrahim
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, University of Mansoura, 35516 Mansoura, Egypt
| | - Z A Sheribah
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, University of Mansoura, 35516 Mansoura, Egypt
| | - H Alaa
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, University of Mansoura, 35516 Mansoura, Egypt.
| |
Collapse
|
30
|
Abstract
OBJECTIVE Our aim is to study the association between bronchial asthma (BA) and periodontitis in Jordan. METHODS A case control study of 260 subjects; 130 with BA and 130 without BA (controls) were recruited at a university hospital in Jordan. BA cases were physician-diagnosed and on anti-asthma medications for 12 months. Periodontitis was defined as the presence of ≥ 4 teeth with ≥ 1 site with probing pocket depth (PPD) ≥ 4 mm and clinical attachment level (CAL) ≥ 3 mm. RESULTS Mean age of participants was 45.3 years (range, 18-65) and 58.1% were females. Patients with BA had lower education and tended to live in rural areas. Periodontitis was present in 52 (40.0%) patients with BA and 26 (20.0%) in the control group, p < 0.005. Binary logistic regression indicated that patients with BA were more likely to have periodontitis than controls [adjusted odd ratio (OR) = 2.91, 95% CI (1.39-6.11), p = 0.005]. Patients with BA had higher percentage of sites with: PPD ≥ 3 mm, CAL ≥ 3 mm, and CAL ≥ 4 mm than controls, p < 0.05. The risk of periodontitis [OR = 5.27, 95% CI (1.59-17.51)] and CAL ≥ 3 mm were higher in patients on oral corticosteroids compared to inhaled corticosteroids, p < 0.05. CONCLUSIONS Adult Jordanians with bronchial asthma are at higher risk of periodontitis, particularly those on oral corticosteroids. Large and longitudinal studies are needed to better understand this significant association.
Collapse
Affiliation(s)
- Basheer Khassawneh
- a Department of Internal Medicine, Faculty of Medicine , Jordan University of Science and Technology , Irbid , Jordan
| | - Rola Alhabashneh
- b Department of Preventive Dentistry, Faculty of Dentistry , Jordan University of Science and Technology , Irbid , Jordan
| | - Fadi Ibrahim
- b Department of Preventive Dentistry, Faculty of Dentistry , Jordan University of Science and Technology , Irbid , Jordan
| |
Collapse
|
31
|
Belal F, Ibrahim F, Sheribah Z, Alaa H. Micellar HPLC method for the simultaneous determination of three anticonvulsant drugs in dosage forms and biological fluids. Application to dissolution-rate testing. Annales Pharmaceutiques Françaises 2018; 76:172-186. [DOI: 10.1016/j.pharma.2018.02.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Revised: 02/25/2018] [Accepted: 02/26/2018] [Indexed: 10/17/2022]
|
32
|
Ibrahim F, Wahba MEK, Magdy G. Analytical method development and validation of spectrofluorimetric and spectrophotometric determination of some antimicrobial drugs in their pharmaceuticals. Spectrochim Acta A Mol Biomol Spectrosc 2018; 188:525-536. [PMID: 28759854 DOI: 10.1016/j.saa.2017.07.033] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2017] [Revised: 07/13/2017] [Accepted: 07/20/2017] [Indexed: 06/07/2023]
Abstract
In this study, three novel, sensitive, simple and validated spectrophotometric and spectrofluorimetric methods have been proposed for estimation of some important antimicrobial drugs. The first two methods have been proposed for estimation of two important third-generation cephalosporin antibiotics namely, cefixime and cefdinir. Both methods were based on condensation of the primary amino group of the studied drugs with acetyl acetone and formaldehyde in acidic medium. The resulting products were measured by spectrophotometric (Method I) and spectrofluorimetric (Method II) tools. Regarding method I, the absorbance was measured at 315nm and 403nm with linearity ranges of 5.0-140.0 and 10.0-100.0μg/mL for cefixime and cefdinir, respectively. Meanwhile in method II, the produced fluorophore was measured at λem 488nm or 491nm after excitation at λex 410nm with linearity ranges of 0.20-10.0 and 0.20-36.0μg/mL for cefixime and cefdinir, respectively. On the other hand, method III was devoted to estimate nifuroxazide spectrofluorimetrically depending on formation of highly fluorescent product upon reduction of the studied drug with Zinc powder in acidic medium. Measurement of the fluorescent product was carried out at λem 335nm following excitation at λex 255nm with linearity range of 0.05 to 1.6μg/mL. The developed methods were subjected to detailed validation procedure, moreover they were used for the estimation of the concerned drugs in their pharmaceuticals. It was found that there is a good agreement between the obtained results and those obtained by the reported methods.
Collapse
Affiliation(s)
- F Ibrahim
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Mansoura University, 35516 Mansoura, Egypt
| | - M E K Wahba
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Mansoura University, 35516 Mansoura, Egypt.
| | - G Magdy
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa 35712, Egypt
| |
Collapse
|
33
|
Mouram H, Ebata E, Fotsing Motsebo J, Sackho B, Monkam R, Ibrahim F. Ponction-biopsie rénale transjugulaire versus percutanée : expérience du centre hospitalier de Meaux. Nephrol Ther 2017. [DOI: 10.1016/j.nephro.2017.08.273] [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: 10/18/2022]
|
34
|
Ibrahim F, Wahba MEK. Simultaneous Liquid Chromatographic Determination of Ebastine with Two Sympathomimetic Drugs Using a Monolithic Column. J Chromatogr Sci 2017; 55:258-266. [PMID: 27884871 DOI: 10.1093/chromsci/bmw180] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Indexed: 11/13/2022]
Abstract
Ebastine (EBS) has been assayed in its laboratory-prepared co-formulated tablets with either pseudoephedrine hydrochloride (PSU) or phenylephrine hydrochloride (PHR) using isocratic reversed-phase chromatography. Separation was conducted using a 50 mm × 4.6 mm i.d., Chromolith® SpeedROD RP-18 end-capped column at ambient temperature. A mobile phase composed of water:acetonitrile in a ratio of 25:75 having a pH of 3.2, has been utilized at 1 mL/min with UV detection at 254 nm for both EBS and PSU and 274 nm for PHR which in turn increased the sensitivity of the proposed method significantly. Symmetric well-separated peaks resulted in a short chromatographic run; <5 min. The proposed method was subjected to detailed validation procedures and proved to be highly sensitive as shown from limit of quantification values which were 4.7, 39.4 and 10.2 μg/mL for EBS, PSU and PHR, respectively. The proposed method was used to analyze EBS in its laboratory-prepared co-formulated tablets; the obtained results were comparable to those resulting from the reference method.
Collapse
Affiliation(s)
- F Ibrahim
- Department of Analytical Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
| | - M E K Wahba
- Department of Analytical Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
| |
Collapse
|
35
|
Belal F, Ibrahim F, Sheribah ZA, Alaa H. Micelle-enhanced spectrofluorimetric method for quantification of entacapone in tablets and human plasma. LUMINESCENCE 2016; 32:713-722. [DOI: 10.1002/bio.3241] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2016] [Revised: 09/23/2016] [Accepted: 09/28/2016] [Indexed: 11/08/2022]
Affiliation(s)
- F. Belal
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy; University of Mansoura; 35516 Mansoura Egypt
| | - F. Ibrahim
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy; University of Mansoura; 35516 Mansoura Egypt
| | - Z. A. Sheribah
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy; University of Mansoura; 35516 Mansoura Egypt
| | - H. Alaa
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy; University of Mansoura; 35516 Mansoura Egypt
| |
Collapse
|
36
|
Scott IC, Ibrahim F, Lewis CM, Scott DL, Strand V. Impact of intensive treatment and remission on health-related quality of life in early and established rheumatoid arthritis. RMD Open 2016; 2:e000270. [PMID: 27651924 PMCID: PMC5013499 DOI: 10.1136/rmdopen-2016-000270] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [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: 02/25/2016] [Revised: 07/13/2016] [Accepted: 07/18/2016] [Indexed: 11/06/2022] Open
Abstract
Objectives To establish if using intensive treatment to reduce synovitis and attain remission in active rheumatoid arthritis (RA) improves all aspects of health-related quality of life (HRQoL). Methods A secondary analysis of two randomised clinical trials (CARDERA and TACIT) was undertaken. CARDERA randomised 467 patients with early active RA to different disease-modifying antirheumatic drug (DMARD) regimens, including high-dose tapering corticosteroids. TACIT randomised 205 established patients with active RA to combination DMARDs (cDMARDs) or tumour necrosis factor-α inhibitors (TNFis). Short-Form 36 (SF-36) measured HRQoL across eight domains, generating physical (PCS) and mental (MCS) component summary scores. Linear regression evaluated 6-month intensive treatment impacts. Mean SF-36 scores, stratified by end point disease activity category, were compared with age/gender-matched population scores. Results In CARDERA, intensive corticosteroid treatment gave significantly greater improvements in PCS but not MCS scores relative to placebo. In TACIT, all eight SF-36 domains had improvements from baseline exceeding minimal clinically important differences with cDMARDs and TNFis. Significantly greater improvements with TNFi relative to cDMARDs were reported in PCS only (p=0.034), after adjusting for covariates. Remission provided the best SF-36 profiles, but scores in physical functioning, role physical and general health in both trials remained below normative values. Patient global assessment of disease activity had a greater association with HRQoL than other disease activity score (DAS28) components. Conclusions Intensive corticosteroid treatment in early RA improves physical but not mental health, relative to placebo. In established RA, cDMARDs and TNFi provide similar improvements in HRQoL. As remission optimises but fails to normalise HRQoL, a focus on treatment strategies targeting HRQoL is required. Trial registration numbers CARDERA was registered as ISRCTN 32484878. TACIT was registered as ISRCTN 37438295; pre-results.
Collapse
Affiliation(s)
- I C Scott
- Academic Department of Rheumatology, Centre for Molecular and Cellular Biology of Inflammation, King's College London, London, UK; Department of Medical and Molecular Genetics, King's College London, Guy's Hospital, London, UK
| | - F Ibrahim
- Department of Rheumatology , Weston Education Centre, King's College Hospital , London , UK
| | - C M Lewis
- Department of Medical and Molecular Genetics , King's College London, Guy's Hospital , London , UK
| | - D L Scott
- Department of Rheumatology , Weston Education Centre, King's College Hospital , London , UK
| | - V Strand
- Division of Immunology/Rheumatology , Stanford University School of Medicine , Palo Alto, California , USA
| |
Collapse
|
37
|
Gottardo A, Verney D, Delafosse C, Ibrahim F, Roussière B, Sotty C, Roccia S, Andreoiu C, Costache C, Delattre MC, Deloncle I, Etilé A, Franchoo S, Gaulard C, Guillot J, Lebois M, MacCormick M, Marginean N, Marginean R, Matea I, Mihai C, Mitu I, Olivier L, Portail C, Qi L, Stan L, Testov D, Wilson J, Yordanov DT. First Evidence of Shape Coexistence in the ^{78}Ni Region: Intruder 0_{2}^{+} State in ^{80}Ge. Phys Rev Lett 2016; 116:182501. [PMID: 27203316 DOI: 10.1103/physrevlett.116.182501] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Indexed: 06/05/2023]
Abstract
The N=48 ^{80}Ge nucleus is studied by means of β-delayed electron-conversion spectroscopy at ALTO. The radioactive ^{80}Ga beam is produced through the isotope separation on line photofission technique and collected on a movable tape for the measurement of γ and e^{-} emission following β decay. An electric monopole E0 transition, which points to a 639(1) keV intruder 0_{2}^{+} state, is observed for the first time. This new state is lower than the 2_{1}^{+} level in ^{80}Ge, and provides evidence of shape coexistence close to one of the most neutron-rich doubly magic nuclei discovered so far, ^{78}Ni. This result is compared with theoretical estimates, helping to explain the role of monopole and quadrupole forces in the weakening of the N=50 gap at Z=32. The evolution of intruder 0_{2}^{+} states towards ^{78}Ni is discussed.
Collapse
Affiliation(s)
- A Gottardo
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, 91406 Orsay Cedex, France
| | - D Verney
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, 91406 Orsay Cedex, France
| | - C Delafosse
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, 91406 Orsay Cedex, France
| | - F Ibrahim
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, 91406 Orsay Cedex, France
| | - B Roussière
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, 91406 Orsay Cedex, France
| | - C Sotty
- Horia Hulubei National Institute for Physics and Nuclear Engineering, Bucharest-Măgurele, Romania
| | - S Roccia
- CSNSM, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, 91406 Orsay Cedex, France
| | - C Andreoiu
- Department of Chemistry, Simon Fraser University, Burnaby, British Columbia V5A S16, Canada
| | - C Costache
- Horia Hulubei National Institute for Physics and Nuclear Engineering, Bucharest-Măgurele, Romania
| | - M-C Delattre
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, 91406 Orsay Cedex, France
| | - I Deloncle
- CSNSM, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, 91406 Orsay Cedex, France
| | - A Etilé
- University of Helsinki, Helsinki, Finland
| | - S Franchoo
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, 91406 Orsay Cedex, France
| | - C Gaulard
- CSNSM, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, 91406 Orsay Cedex, France
| | - J Guillot
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, 91406 Orsay Cedex, France
| | - M Lebois
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, 91406 Orsay Cedex, France
| | - M MacCormick
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, 91406 Orsay Cedex, France
| | - N Marginean
- Horia Hulubei National Institute for Physics and Nuclear Engineering, Bucharest-Măgurele, Romania
| | - R Marginean
- Horia Hulubei National Institute for Physics and Nuclear Engineering, Bucharest-Măgurele, Romania
| | - I Matea
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, 91406 Orsay Cedex, France
| | - C Mihai
- Horia Hulubei National Institute for Physics and Nuclear Engineering, Bucharest-Măgurele, Romania
| | - I Mitu
- Horia Hulubei National Institute for Physics and Nuclear Engineering, Bucharest-Măgurele, Romania
| | - L Olivier
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, 91406 Orsay Cedex, France
| | - C Portail
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, 91406 Orsay Cedex, France
| | - L Qi
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, 91406 Orsay Cedex, France
| | - L Stan
- Horia Hulubei National Institute for Physics and Nuclear Engineering, Bucharest-Măgurele, Romania
| | - D Testov
- Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Legnaro, 35020 Legnaro, Italy
- Flerov Laboratory of Nuclear Reactions, Joint Institute for Nuclear Research, Dubna, Russia
| | - J Wilson
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, 91406 Orsay Cedex, France
| | - D T Yordanov
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, 91406 Orsay Cedex, France
| |
Collapse
|
38
|
Ting K, Aitken KJ, Penna F, Samiei AN, Sidler M, Jiang JX, Ibrahim F, Tolg C, Delgado-Olguin P, Rosenblum N, Bägli DJ. Uropathogenic E. coli (UPEC) Infection Induces Proliferation through Enhancer of Zeste Homologue 2 (EZH2). PLoS One 2016; 11:e0149118. [PMID: 26964089 PMCID: PMC4786126 DOI: 10.1371/journal.pone.0149118] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Accepted: 01/27/2016] [Indexed: 01/13/2023] Open
Abstract
Host-pathogen interactions can induce epigenetic changes in the host directly, as well as indirectly through secreted factors. Previously, uropathogenic Escherichia coli (UPEC) was shown to increase DNA methyltransferase activity and expression, which was associated with methylation-dependent alterations in the urothelial expression of CDKN2A. Here, we showed that paracrine factors from infected cells alter expression of another epigenetic writer, EZH2, coordinate with proliferation. Urothelial cells were inoculated with UPEC, UPEC derivatives, or vehicle (mock infection) at low moi, washed, then maintained in media with Gentamycin. Urothelial conditioned media (CM) and extracellular vesicles (EV) were isolated after the inoculations and used to treat naïve urothelial cells. EZH2 increased with UPEC infection, inoculation-induced CM, and inoculation-induced EV vs. parallel stimulation derived from mock-inoculated urothelial cells. We found that infection also increased proliferation at one day post-infection, which was blocked by the EZH2 inhibitor UNC1999. Inhibition of demethylation at H3K27me3 had the opposite effect and augmented proliferation. CONCLUSION: Uropathogen-induced paracrine factors act epigenetically by altering expression of EZH2, which plays a key role in early host cell proliferative responses to infection.
Collapse
Affiliation(s)
- Kenneth Ting
- Faculty of Arts and Sciences, University of Toronto, Toronto, Ontario, Canada
- Institute of Medical Sciences, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Karen J. Aitken
- Developmental and Stem Cell Biology Program, Research Institute, Hospital for Sick Children, Toronto, Ontario, Canada
- Urology Division, Department of Surgery, Hospital for Sick Children, Toronto, Ontario, Canada
- * E-mail:
| | - Frank Penna
- Urology Division, Department of Surgery, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Alaleh Najdi Samiei
- Developmental and Stem Cell Biology Program, Research Institute, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Martin Sidler
- Institute of Medical Sciences, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
- Developmental and Stem Cell Biology Program, Research Institute, Hospital for Sick Children, Toronto, Ontario, Canada
- Urology Division, Department of Surgery, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Jia-Xin Jiang
- Developmental and Stem Cell Biology Program, Research Institute, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Fadi Ibrahim
- Developmental and Stem Cell Biology Program, Research Institute, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Cornelia Tolg
- Developmental and Stem Cell Biology Program, Research Institute, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Paul Delgado-Olguin
- Developmental and Stem Cell Biology Program, Research Institute, Hospital for Sick Children, Toronto, Ontario, Canada
- Physiology and Experimental Medicine, Research Institute, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Norman Rosenblum
- Developmental and Stem Cell Biology Program, Research Institute, Hospital for Sick Children, Toronto, Ontario, Canada
- Nephrology Division, Department of Surgery, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Darius J. Bägli
- Faculty of Arts and Sciences, University of Toronto, Toronto, Ontario, Canada
- Institute of Medical Sciences, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
- Developmental and Stem Cell Biology Program, Research Institute, Hospital for Sick Children, Toronto, Ontario, Canada
- Urology Division, Department of Surgery, Hospital for Sick Children, Toronto, Ontario, Canada
| |
Collapse
|
39
|
Gadgil P, Ibrahim F, Chow DSL. UPLC-MS/MS assay of 21-aminosteroid (lazaroid U74389G) for application in pharmacokinetic study. J Pharm Biomed Anal 2016; 122:90-7. [PMID: 26848737 DOI: 10.1016/j.jpba.2016.01.033] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Revised: 01/09/2016] [Accepted: 01/12/2016] [Indexed: 01/27/2023]
Abstract
Lazaroids are potent inhibitors of lipid peroxidation, both in vitro and in vivo. Additionally, a member of the lazaroid family, U-74389G (LAZ) has been shown to have specific radio-protective and anti-proliferative effects. However, there is no quantitative analytical method developed for measuring the therapeutic levels of LAZ for the aforementioned effects. This article highlights the development and validation of a sensitive UPLC-MS/MS method for the quantification of LAZ, and its subsequent application in pharmacokinetic studies in rats with the lower limit of quantification (LLOQ) of 1.95 ng/mL. LAZ and internal standard diadzein (IS) were separated using ACQUITY UPLC(®) BEH C18 column. Gradient elution was used at a flow rate of 0.45 mL/min with mobile phases consisting of 0.1% formic acid in water and 0.1% formic in acetonitrile. LAZ (m/z 612→260) and IS (m/z 255→199) were detected by electrospray ionization (ESI) using multiple reaction monitoring (MRM) in a positive mode on QTRAP(®) 5500 System. The UPLC-MS/MS method was validated as per the US FDA Guidelines for Bio-analytical Validation. LAZ was extracted from rat plasma (100 μL) using protein precipitation by acetonitrile with mean recovery and matrix factor in range of 47.7-56.1%, and 85.6-89.4%, respectively. The calibration curve for LAZ was linear in the range of 1.95-250 ng/mL. The inter-day and intra-day accuracy and precision values for LLOQ, low, medium, high and very high concentration QC samples were within ±15%. LAZ was tested under different storage conditions, for short-term bench-top stability (1h and 3h at 25°C), long-term stability (1 month at -80°C), freeze-thaw cycle stability (1 cycle and 3 cycles) and stability of processed samples in auto-sampler (24h at 10°C) with stability values within ±15% range of nominal concentrations. The validated UPLC-MS/MS method was further applied to a pharmacokinetic study in rats after a single intravenous dose of LAZ at 5 mg/kg.
Collapse
Affiliation(s)
- P Gadgil
- Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, TX 77030, USA.
| | | | - D S-L Chow
- Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, TX 77030, USA.
| |
Collapse
|
40
|
Ibrahim F, El-Din M, El-Aziz H. New Validated Fluorescence Quenching Based Procedure for the Determination of Cilostazol and Clopidogrel in Bulk, Tablets and Biological Fluids, With Application of Stern-volmer Equation. ACTA ACUST UNITED AC 2016. [DOI: 10.9734/bjpr/2016/28329] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
41
|
|
42
|
Cawthray JF, Weekes DM, Sivak O, Creagh AL, Ibrahim F, Iafrate M, Haynes CA, Wasan KM, Orvig C. In vivo study and thermodynamic investigation of two lanthanum complexes, La(dpp) 3 and La(XT), for the treatment of bone resorption disorders. Chem Sci 2015; 6:6439-6447. [PMID: 30090262 PMCID: PMC6054118 DOI: 10.1039/c5sc01767j] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2015] [Accepted: 08/02/2015] [Indexed: 02/03/2023] Open
Abstract
Bone density diseases such as osteoporosis affect a significant number of people worldwide. Lanthanide ions are functional mimics of calcium ions, able to substitute for Ca2+ in the bone mineral component, hydroxyapatite (HAP). Bone undergoes a continuous remodelling cycle and lanthanides can affect this cycle, exerting a positive influence on bone mineral. We have been engaged in efforts to find new lanthanide containing complexes as active agents for treatment of these diseases and have identified two lead compounds, 3-hydroxy-1,2-dimethylpyridin-4(1H)-one (Hdpp) and a phosphinate-EDTA derivative, bis[[bis(carboxymethyl)amino]-methyl]phosphinate (H5XT). In this paper, we report in vivo data for the first time for the two lead compounds. The pharmacokinetics of La(dpp)3 suggest the complex is rapidly cleared from plasma. We demonstrate that La3+ accumulates in the bone following IV dose of either La(dpp)3 or La(XT) and we have investigated the influence of each chelating ligand on the incorporation of La3+ into HAP using ITC and HAP-binding studies.
Collapse
Affiliation(s)
- J F Cawthray
- College of Pharmacy and Nutrition , University of Saskatchewan , 104 Clinic Place , Saskatoon , SK S7N 2Z4 , Canada .
| | - D M Weekes
- Medicinal Inorganic Chemistry Group , Department of Chemistry , University of British Columbia , 2036 Main Mall , Vancouver , BC V6T 1Z1 , Canada .
| | - O Sivak
- Faculty of Pharmaceutical Sciences , University of British Columbia , 2146 East Mall , Vancouver , BC V6T 1Z3 , Canada
| | - A L Creagh
- Michael Smith Laboratories and Department of Chemical and Biological Engineering , University of British Columbia , Vancouver , BC V6T 1Z4 , Canada
| | - F Ibrahim
- Pfizer Inc. , Eastern Point Road , Groton , CT 06340 , USA
| | - M Iafrate
- Medicinal Inorganic Chemistry Group , Department of Chemistry , University of British Columbia , 2036 Main Mall , Vancouver , BC V6T 1Z1 , Canada .
| | - C A Haynes
- Michael Smith Laboratories and Department of Chemical and Biological Engineering , University of British Columbia , Vancouver , BC V6T 1Z4 , Canada
| | - K M Wasan
- College of Pharmacy and Nutrition , University of Saskatchewan , 104 Clinic Place , Saskatoon , SK S7N 2Z4 , Canada .
| | - C Orvig
- Medicinal Inorganic Chemistry Group , Department of Chemistry , University of British Columbia , 2036 Main Mall , Vancouver , BC V6T 1Z1 , Canada .
| |
Collapse
|
43
|
Ibrahim F, Akhtar N, Kamran S, Deleu D, D'Soza A, Melikyan G, Ali Y, Shihab A, Gabriel H, AL-Elamy O, Al Hail H, Sokrab T, Mesraoua B, Makki S, Imam Y, El Sheikh L, Abdelrahman N, Shuaib A. Thrombolysis for acute ischemic stroke- improvement in performance after implementing stroke protocols. J Neurol Sci 2015. [DOI: 10.1016/j.jns.2015.08.1359] [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: 10/22/2022]
|
44
|
Mouram H, Jocelin F, Mohammed L, Monkam R, Ibrahim F, Frederic K. Syndrome d’encéphalopathie postérieure réversible secondaire au cyclophosphamide : à propos de deux cas. Nephrol Ther 2015. [DOI: 10.1016/j.nephro.2015.07.301] [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: 10/23/2022]
|
45
|
Galloway J, Kingsley G, Ma M, Lorente-Canovas B, Cope A, Ibrahim F, Scott D. SAT0150 Optimising Treatment with TNF Inhibitors in Rheumatoid Arthritis with Different Dose Tapering Strategies: The Opttira Trial:. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.4684] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
46
|
Galloway J, Ibrahim F, Mian A, Gullick N, Steer S, Lempp H. AB1126 Changes in Das28 by Age and Ethnicity Among Patients Attending one Rheumatology Clinic in London, UK: Table 1. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.2950] [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: 11/04/2022]
|
47
|
Filkova M, Ibrahim F, Norton S, Scott D, Mant T, Cope A, Molokhia M, Galloway J. THU0079 Polypharmacy, Although not Combination Dmard Therapy, in Rheumatoid Arthritis is Associated with Increased Hospitalisation Risk. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.3604] [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: 11/04/2022]
|
48
|
Parraga Prieto C, Galloway J, Ibrahim F, Campbell R, Chinoy H, Gordon P. OP0057 Idiopathic Inflammatory Myopathy is Associated with an Increased Risk of Cardiovascular Events in the First Five Years After Diagnosis. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.4004] [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: 11/04/2022]
|
49
|
Ting K, Samiei A, Aitken KJ, Weber B, Ibrahim F, Kapila A, Tolg C, Bagli D. MP20-02 CONDITIONED MEDIA FROM INFECTED UROTHELIAL CELLS CONTAIN EXOSOMES WITH EPIGENETIC POTENTIAL. J Urol 2015. [DOI: 10.1016/j.juro.2015.02.974] [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: 11/25/2022]
|
50
|
Ibrahim F, El-Enany N, Shalan SH, Abo Shabana RA. Second-derivative synchronous spectrofluorimetric determination of nebivolol hydrochloride and amlodipine besylate in their combined dosage form. LUMINESCENCE 2015; 30:1011-9. [DOI: 10.1002/bio.2852] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2014] [Revised: 12/21/2014] [Accepted: 12/28/2014] [Indexed: 11/08/2022]
Affiliation(s)
- F. Ibrahim
- Department of Analytical Chemistry; University of Mansoura; 35516 Mansoura Egypt
| | - N. El-Enany
- Department of Analytical Chemistry; University of Mansoura; 35516 Mansoura Egypt
| | - SH Shalan
- Department of Analytical Chemistry; University of Mansoura; 35516 Mansoura Egypt
| | - R. A. Abo Shabana
- Department of Analytical Chemistry; University of Mansoura; 35516 Mansoura Egypt
| |
Collapse
|