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Rahman S, Haque R, Raisuddin S. Potential inhibition of 12- O-tetradecanoylphorbol-13-acetate-induced inflammation, hyperproliferation, and hyperplasiogenic responses by celecoxib in mouse skin. Cutan Ocul Toxicol 2024; 43:87-96. [PMID: 38127818 DOI: 10.1080/15569527.2023.2295843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Accepted: 12/02/2023] [Indexed: 12/23/2023]
Abstract
PURPOSE Skin exposure to noxious agents leads to cutaneous lesion marked by an increase in inflammation, cellular proliferation, and hyperplasiogenic reactions. Studies have demonstrated that these damages breach the skin integrity resulting in the aetiology of various cutaneous disorders like atopic dermatitis, eczema, psoriasis, and development of non-melanoma skin cancer. Celecoxib, a cyclooxygenase-2 (COX-2) inhibitor, is an effective treatment for a variety of inflammatory diseases. Its importance in the therapy of skin problems, however, remains under appreciated. METHODS We tested efficacy of topically applied celecoxib in mitigating skin inflammation, cellular proliferation, and hyperplasia induced by the phorbol ester 12-O-tetradecanoylphorbol-13-acetate (TPA) in Swiss albino mice. RESULTS Celecoxib (5 and 10 μmol) markedly reduced TPA (10 nmol) induced prostaglandin E2 (PGE2) production, oedema formation, myeloperoxidase (MPO) activity, and levels of pro-inflammatory cytokines such as tumour necrosis factor-alpha (TNF-α), interleukin-1 beta (IL-1β), and interleukin-6 (IL-6). It also resulted in a considerable decrease in ornithine decarboxylase (ODC) activity and the incorporation of [3H]-thymidine into DNA. In addition, there was a significant reduction in histoarchitectural abnormalities such as epidermal thickness, number of epidermal cell layers, neutrophil infiltration, intercellular oedema, and vasodilation. CONCLUSION Our results demonstrate that topical celecoxib can reduce the inflammation, hyperproliferation, and hyperplasiogenic events of skin insults suggesting that it may prove to be a valuable management option for cutaneous lesion and associated illnesses such as atopic dermatitis, eczema, and psoriasis, as well as the emergence of non-melanoma cancer.
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Affiliation(s)
- Shakilur Rahman
- Department of Medical Elementology & Toxicology, Jamia Hamdard (Hamdard University), New Delhi, India
| | - Rizwanul Haque
- Department of Biotechnology, School of Earth, Biological and Environmental Science, Central University of South Bihar, Gaya, Bihar, India
| | - Sheikh Raisuddin
- Department of Medical Elementology & Toxicology, Jamia Hamdard (Hamdard University), New Delhi, India
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Chen J, Mittendorfer-Rutz E, Taipale H, Rahman S, Niederkrotenthaler T, Klimek P. Association of medication clusters and subsequent labor market marginalization in refugee and Swedish-born young adults with common mental disorders in Sweden. Eur Child Adolesc Psychiatry 2024; 33:897-907. [PMID: 37115278 PMCID: PMC10894142 DOI: 10.1007/s00787-023-02214-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Accepted: 04/11/2023] [Indexed: 04/29/2023]
Abstract
Little is known about the association between common mental disorders (CMD) and labor market integration among refugee and Swedish-born young adults. Socially disadvantaged patients such as refugees are more likely to discontinue their medication use prematurely. This study aimed to identify clusters of individuals with similar psychotropic medication patterns; and examine the relationship between cluster membership with labor market marginalization (LMM) in refugee and Swedish-born young adults with CMD. The study uses a longitudinal matched cohort aged 18-24 years with CMD diagnoses from Swedish registers covering 2006-2016. Dispensed psychotropic medications (antidepressants, antipsychotics, anxiolytics, sedative-hypnotics, mood stabilizers) were collected one year before and after CMD diagnosis. Clusters of patients with similar time courses of prescribed dosages were algorithmically identified. The association of cluster membership with subsequent LMM, (long-term sickness absence, SA, disability pension, DP, or long-term unemployment, UE) was assessed using Cox regression. Among 12,472 young adults with CMD, there were 13.9% with SA, 11.9% with DP, and 13.0% with UE during a mean follow-up of 4.1 years (SD 2.3 years). Six clusters of individuals were identified. A cluster with a sustained increase in all medication types yielded the highest hazard ratio (HR [95% CI]) 1.69 [1.34, 2.13] for SA and 2.63 [2.05, 3.38] for DP. The highest HRs of UE give a cluster with a concentrated peak in antidepressants at CMD diagnosis (HR 1.61[1.18, 2.18]). Refugees and Swedish-born showed similar associations between clusters and LMM. To prevent LMM, targeted support and early assessment of CMD treatment are needed for individuals with a sustained increase in psychotropic medication after CMD diagnosis and for refugees in high-risk clusters for UE characterized by a rapid lowering of treatment dosages, which could be an indicator for premature medication discontinuation.
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Affiliation(s)
- J Chen
- Section for Science of Complex Systems, CeDAS, Medical University of Vienna, Vienna, Austria
- Complexity Science Hub Vienna, Vienna, Austria
- Division of Insurance Medicine, Department of Clinical Neuroscience, Karolinska Institutet, 171 77, Stockholm, Sweden
| | - E Mittendorfer-Rutz
- Division of Insurance Medicine, Department of Clinical Neuroscience, Karolinska Institutet, 171 77, Stockholm, Sweden
| | - H Taipale
- Division of Insurance Medicine, Department of Clinical Neuroscience, Karolinska Institutet, 171 77, Stockholm, Sweden
- Niuvanniemi Hospital, Kuopio, Finland
- University of Eastern Finland, School of Pharmacy, Kuopio, Finland
| | - S Rahman
- Division of Insurance Medicine, Department of Clinical Neuroscience, Karolinska Institutet, 171 77, Stockholm, Sweden
| | - T Niederkrotenthaler
- Unit Suicide Research and Mental Health Promotion, Department of Social and Preventive Medicine, Centre for Public Health, Medical University of Vienna, Vienna, Austria
- Wiener Werkstätte for Suicide Research, Vienna, Austria
| | - P Klimek
- Section for Science of Complex Systems, CeDAS, Medical University of Vienna, Vienna, Austria.
- Complexity Science Hub Vienna, Vienna, Austria.
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Rahman S, Jan G, Jan FG, Rahim HU. Phytochemical Analysis and hypoglycemic potential of Filago hurdwarica (Wall. ex DC.) Wagenitz in alloxan induced diabetic mice. BRAZ J BIOL 2024; 84:e261518. [DOI: 10.1590/1519-6984.261518] [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: 02/27/2022] [Accepted: 08/11/2022] [Indexed: 11/05/2022] Open
Abstract
Abstract Plants have profound therapeutic benefits, more economical treatments, fewer side effects, and a relatively cheap cost, making them a source of drugs for protective, preventative, curative, or conducive purposes and creating novel phytomedicines. Plant derived medicines are relatively safe compared to synthetic medicines. Many plants have proved to successfully aid in the treatment of diabetes including Filago hurdwarica (Wall. ex DC.) Wagenitz. The current investigations were therefore designed to assess the phytochemical, antioxidant, antidiabetic, and antihyperlipidemic activities of F. hurdwarica. The phytochemical investigations and antioxidant activities of different extracts were carried out using standard chemical tests, DPPH, and H2O2 scavenging assays. F. hurdwarica plant extract in Hydromethanolic solution were prepared by Soxhletation method and stored in refrigerator at 4°C for two days before use. Swiss Albino mice were made diabetic by a single dose of alloxan (150 mg/kg). Hydromethanolic plant extract and fractions of F. hurdwarica were screened for antidiabetic activity and given to the alloxan-induced diabetic mice at a concentration of 150-250 mg/kg of body weight in different groups of 6 diabetic mice each orally once a day for 15 days. Glibenclamide is also given to another group to as a standard drug to support the result at a dose of 10 mg/kg of body weight orally once a day for 15 days. Blood glucose levels and body weights of mice were measured on 0, 4, 7, 11 and 15th days. The study found that the extract was safe up to the dose level of 2000 mg/kg and the dose response effect of chloroform extract (150-250 mg/kg) of F. hurdwarica showed expressive antihyperglycemic effects and also improved other altered biochemical parameters associated with diabetes. The FTIR and XRD spectra demonstrated the occurrence of phenols, alcohols, alkenes, alkyl halides, ketones, and aromatic compounds and confirmed the amorphous nature of the extract. GC-MS spectral analysis showed the tentative presence of 31 phytochemical constituents in the chloroform extract of F. hurdwarica with different retention time. To conclude, the chloroform extract (250 mg/kg) of F. hurdwarica revealed considerable antioxidant, antihyperglycemic, and antihyperlipidemic potential and is safe for treating diabetes and related complications.
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Affiliation(s)
- S. Rahman
- Abdul Wali Khan University Mardan, Pakistan
| | - Gul Jan
- Abdul Wali Khan University Mardan, Pakistan
| | - F. Gul Jan
- Abdul Wali Khan University Mardan, Pakistan
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Rahman S, Saha S, Dasgupta SB, Das AK. Putative staphylococcal enterotoxin possesses two common structural motifs for MHC-II binding. Int J Biol Macromol 2024; 256:128437. [PMID: 38013079 DOI: 10.1016/j.ijbiomac.2023.128437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 11/20/2023] [Accepted: 11/23/2023] [Indexed: 11/29/2023]
Abstract
Staphylococcus aureus has become a significant cause of health risks in humankind. Staphylococcal superantigens (SAgs) or enterotoxins are the key virulent factors that can exhibit acute diseases to severe life-threatening conditions. Recent literature reports S. aureus has steadily gained new enterotoxin genes over the past few decades. In spite of current knowledge of the established SAgs, several questions on putative enterotoxins are still remaining unanswered. Keeping that in mind, this study sheds light on a putative enterotoxin SEl26 to characterize its structural and functional properties. In-silico analyses indicate its close relation with the conventional SAgs, especially the zinc-binding SAgs. Additionally, important residues that are vital for the T-cell receptor (TcR) and major histocompatibility complex class II (MHC-II) interaction were predicted and compared with established SAgs. Besides, our biochemical analyses exhibited the binding of this putative enterotoxin with MHC-II, followed by regulating pro-inflammatory and anti-inflammatory cytokines.
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Affiliation(s)
- Shakilur Rahman
- Department of Biotechnology, Indian Institute of Technology Kharagpur, Kharagpur 721302, West Bengal, India.
| | - Saradindu Saha
- Department of Biotechnology, Indian Institute of Technology Kharagpur, Kharagpur 721302, West Bengal, India
| | - Somdeb Bose Dasgupta
- Department of Biotechnology, Indian Institute of Technology Kharagpur, Kharagpur 721302, West Bengal, India
| | - Amit Kumar Das
- Department of Biotechnology, Indian Institute of Technology Kharagpur, Kharagpur 721302, West Bengal, India.
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Tomaszewski Farias S, Fox J, Dulaney H, Chan M, Namboodiri S, Harvey DJ, Weakley A, Rahman S, Luna C, Beech BF, Campbell L, Schmitter-Edgecombe M. Memory support training and lifestyle modifications to promote healthy aging in persons at risk for Alzheimer's disease: a digital application supported intervention (Brain Boosters). BMC Geriatr 2023; 23:881. [PMID: 38129775 PMCID: PMC10740219 DOI: 10.1186/s12877-023-04574-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Accepted: 12/06/2023] [Indexed: 12/23/2023] Open
Abstract
BACKGROUND Evidence-based interventions to protect against cognitive decline among older adults at risk for Alzheimer's disease and related dementias (ADRD) are urgently needed. Rehabilitation approaches to support memory and behavioral/lifestyle interventions are recognized as promising strategies for preserving or improving cognitive health, although few previous interventions have combined both approaches. This paper describes the protocol of the Brain Boosters intervention, which synergistically combines training in compensatory and healthy lifestyle behaviors and supports implementation and tracking of new behaviors with a digital application. METHODS The study utilizes a single-site, single-blinded, randomized controlled design to compare a structured lifestyle and compensatory aid intervention to an education-only self-guided intervention. We plan to enroll 225 community-dwelling adults (25% from underrepresented groups) aged 65 + who endorse subjective cognitive decline (SCD) and low baseline levels of healthy lifestyle behaviors. Both interventions will be administered in group format, consisting of 15 two-hour classes that occur weekly for ten weeks and taper to bi-monthly and monthly, for an intervention duration of 6 months. Participants in both interventions will receive education about a variety of memory support strategies and healthy lifestyle behaviors, focusing on physical and cognitive activity and stress management. The structured intervention will also receive support in adopting new behaviors and tracking set goals aided by the Electronic Memory and Management Aid (EMMA) digital application. Primary outcomes include global cognition (composite of memory, attention, and executive function tests) and everyday function (Everyday Cognition Questionnaire). Data will be collected at baseline and outcome visits, at approximately 6, 12, and 18 months. Qualitative interviews, self-report surveys (e.g., indicators of self-determination, health literacy) and EMMA data metrics will also be used to identify what components of the intervention are most effective and for whom they work. DISCUSSION Successful project completion will provide valuable information about how individuals with SCD respond to a compensation and preventative lifestyle intervention assisted by a digital application, including an understanding of factors that may impact outcomes, treatment uptake, and adherence. The work will also inform development, scaling, and personalization of future interventions that can delay disability in individuals at risk for ADRD. TRIAL REGISTRATION ClinicalTrials.gov. (NCT05027789, posted 8/30/2021).
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Affiliation(s)
| | - J Fox
- Department of Neurology, University of California, Davis, Sacramento, USA
| | - H Dulaney
- Department of Neurology, University of California, Davis, Sacramento, USA
| | - M Chan
- Department of Neurology, University of California, Davis, Sacramento, USA
| | - S Namboodiri
- Department of Neurology, University of California, Davis, Sacramento, USA
| | - D J Harvey
- Department of Biostatistics, University of California, Davis, Davis, USA
| | - A Weakley
- Department of Neurology, University of California, Davis, Sacramento, USA
| | - S Rahman
- Department of Psychology, Washington State University, Pullman, USA
| | - C Luna
- Department of Psychology, Washington State University, Pullman, USA
| | - B F Beech
- Department of Psychology, Washington State University, Pullman, USA
| | - L Campbell
- Department of Neurology, University of California, Davis, Sacramento, USA
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Rahman S, Das AK. Staphylococcal superantigen-like protein 10 enhances the amyloidogenic biofilm formation in Staphylococcus aureus. BMC Microbiol 2023; 23:390. [PMID: 38062361 PMCID: PMC10701973 DOI: 10.1186/s12866-023-03134-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 11/22/2023] [Indexed: 12/18/2023] Open
Abstract
Staphylococcus aureus is a highly infectious pathogen that represents a significant burden on the current healthcare system. Bacterial attachment to medical implants and host tissue, and the establishment of a mature biofilm, play an important role in chronic diseases such as endocarditis, osteomyelitis and wound infections. These biofilms decrease bacterial susceptibility to antibiotics and immune defences, making the infections challenging to treatment. S. aureus produces numerous exotoxins that contribute to the pathogenesis of the bacteria. In this study, we have identified a novel function of staphylococcal superantigen-like protein 10 (SSL10) in enhancing the formation of staphylococcal biofilms. Biofilm biomass is significantly increased when SSL10 is added exogenously to bacterial cultures, whereas SSL2 and SSL12 are found to be less active. Exogenously added SSL10 mask the surface charge of the bacterial cells and lowers their zeta potential, leading to the aggregation of the cells. Moreover, the biofilm formation by SSL10 is governed by amyloid aggregation, as evident from spectroscopic and microscopic studies. These findings thereby give the first overview of the SSL-mediated amyloid-based biofilm formation and further drive the future research in identifying potential molecules for developing new antibacterial therapies against Staphylococcus aureus.
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Affiliation(s)
- Shakilur Rahman
- Department of Biotechnology, Indian Institute of Technology Kharagpur, Kharagpur, 721302, West Bengal, India
| | - Amit Kumar Das
- Department of Biotechnology, Indian Institute of Technology Kharagpur, Kharagpur, 721302, West Bengal, India.
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Wani K, Rahman S, Draz H. Editorial: Dysbiosis, obesity, and inflammation: interrelated phenomena causes or effects of metabolic syndrome? Front Endocrinol (Lausanne) 2023; 14:1265314. [PMID: 37916148 PMCID: PMC10616948 DOI: 10.3389/fendo.2023.1265314] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Accepted: 10/11/2023] [Indexed: 11/03/2023] Open
Affiliation(s)
- Kaiser Wani
- Chair for Biomarkers of Chronic Diseases, Biochemistry Department, College of Science, King Saud University, Riyadh, Saudi Arabia
- University Institute of Biotechnology, Chandigarh University, Mohali, India
| | - Shakilur Rahman
- Department of Medical Elementology and Toxicology, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi, India
- Department of Anesthesiology and Perioperative Medicine, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Hossam Draz
- Charles River Laboratories, Senneville, QC, Canada
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Singh S, Chauhan SB, Gupta C, Singh I, Gupta A, Sharma S, Kawish SM, Rahman S, Iqbal M. Design and Characterization of Citronella Oil-Loaded Micro-Emulgel for the Treatment of Candida Albicans Infection. Gels 2023; 9:799. [PMID: 37888372 PMCID: PMC10606459 DOI: 10.3390/gels9100799] [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: 09/01/2023] [Revised: 09/25/2023] [Accepted: 09/28/2023] [Indexed: 10/28/2023] Open
Abstract
The purpose of the current study was to prepare and evaluate a citronella oil-loaded microemulsion-based micro-emulgel for the treatment of Candida albicans. The primary objective was to use the skin to transfer hydrophobic medications into the bloodstream. The formulation included cinnamon oil as an antifungal oil and citronella oil as an active pharmaceutical ingredient, respectively. Tween 80 and PEG 200 were used as the surfactant and co-surfactant, respectively, to create phase diagrams. Carbopol 940, one of the frequently used polymers, was investigated for its ability to prepare gel formulations. The optimized (F3) batch contained the highest percentage (87.05 ± 0.03%) of drug content and, according to the statistics provided, had the highest drug release rate of around 87.05% within 4 h. The Korsmeyer-Peppas model with n value of 0.82, which is in the range 0.5-1, had the highest r2 value, indicating that release following non-Fickian/anomalous diffusion provided a better dimension for all of the formulations. The optimized (F3) formulation had stronger antifungal activity in comparison to other formulations. This leads to the conclusion that citronella oil can be made into a micro-emulgel, which may improve its release in aqueous systems while maintaining a high level of drug release at the target site.
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Affiliation(s)
- Shambhvi Singh
- Amity Institute of Pharmacy, Amity University, Noida, Uttar Pradesh 201301, India; (S.S.)
| | - Shikha Baghel Chauhan
- Amity Institute of Pharmacy, Amity University, Noida, Uttar Pradesh 201301, India; (S.S.)
| | - Charu Gupta
- Amity Institute of Herbal Research & Studies, Amity University Noida, Noida, Uttar Pradesh 201313, India;
| | - Indu Singh
- Amity Institute of Pharmacy, Amity University, Noida, Uttar Pradesh 201301, India; (S.S.)
| | - Annie Gupta
- Amity Institute of Pharmacy, Amity University, Noida, Uttar Pradesh 201301, India; (S.S.)
| | - Shwetakshi Sharma
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard University, New Delhi, Delhi 110062, India
| | - S. M. Kawish
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard University, New Delhi, Delhi 110062, India
| | - Shakilur Rahman
- Department of Anesthesiology and Perioperative Medicine, University of Alabama at Birmingham, Birmingham, AL 35249-6810, USA
| | - Muzaffar Iqbal
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
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Broadbent A, Rahman S, Grace B, Walker R, Noble F, Kelly J, Byrne J, Underwood T. The effect of surgical complications on long-term prognosis following oesophagectomy. Eur J Surg Oncol 2023; 49:106930. [PMID: 37258358 DOI: 10.1016/j.ejso.2023.05.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 04/26/2023] [Accepted: 05/04/2023] [Indexed: 06/02/2023]
Abstract
INTRODUCTION Complications are frequent after oesophagectomy, and there is evidence these adversely impact long-term prognosis. However, the effect of multiple complications, and the absolute magnitude of effect on survival is unclear. This study aimed to examine these effects in a single high-volume UK unit. METHODS Patients undergoing oesophagectomy for cancer and who survived to 90 days post-oesophagectomy were analysed. Complications were graded according to the Clavien-Dindo (CD) classification and the Comprehensive Complication Index (CCI). The effect and magnitude of effect of complications on survival were assessed using multivariable cox regression and the risk-adjusted population attributable fraction. RESULTS In total, 380 patients were included. Complications occurred in 251 (66.1%). Suffering ≥3 complications (HR 1.89, 95%CI 1.13-3.16, p = 0.015) or an unplanned escalation in care (HR 2.22, 95%CI 1.43-3.45, p < 0.001) significantly reduced survival whereas pulmonary complications and anastomotic leak did not. Patients with a CCI>30 had worse overall survival (HR 1.91, 95%CI 1.32-2.76, p < 0.001) and CCI>30 due to multiple minor complications gave a worse prognosis compared to CCI>30 due to major complications (HR 2.44, 95%CI 1.14-5.20, p = 0.022). An estimated 9.1% (95%CI 3.4-14.4%) of deaths at 5 years were attributable to a CCI>30. CONCLUSION Long-term survival following oesophagectomy for cancer is significantly affected by complications and the cumulative effect of multiple complications. Interestingly, multiple minor complications had a worse effect on survival than major complications. The absolute magnitude of effect is substantial: minimising all types of postoperative complications could have significant benefit to overall outcomes.
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Affiliation(s)
- A Broadbent
- Upper Gastrointestinal Surgery Department, University Hospitals Southampton, UK; Cancer Sciences Unit, Faculty of Medicine, University of Southampton, UK
| | - S Rahman
- Upper Gastrointestinal Surgery Department, University Hospitals Southampton, UK; Cancer Sciences Unit, Faculty of Medicine, University of Southampton, UK
| | - B Grace
- Upper Gastrointestinal Surgery Department, University Hospitals Southampton, UK; Cancer Sciences Unit, Faculty of Medicine, University of Southampton, UK
| | - R Walker
- Upper Gastrointestinal Surgery Department, University Hospitals Southampton, UK; Cancer Sciences Unit, Faculty of Medicine, University of Southampton, UK
| | - F Noble
- Upper Gastrointestinal Surgery Department, University Hospitals Southampton, UK
| | - J Kelly
- Upper Gastrointestinal Surgery Department, University Hospitals Southampton, UK
| | - J Byrne
- Upper Gastrointestinal Surgery Department, University Hospitals Southampton, UK
| | - T Underwood
- Upper Gastrointestinal Surgery Department, University Hospitals Southampton, UK; Cancer Sciences Unit, Faculty of Medicine, University of Southampton, UK.
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Ul Rehman Z, Suleman M, Ashraf K, Ali S, Rahman S, Rashid MI. Immuno-bioinformatic approach for designing of multi-epitope merozoite surface antigen of Babesia bigemina and evaluation of its immunogenicity in inoculated calves. Pol J Vet Sci 2023; 26:409-418. [PMID: 37727102 DOI: 10.24425/pjvs.2023.145047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/21/2023]
Abstract
Babesiosis is a parasitic disease caused by intraerythrocytic parasites of the genus Babesia, which infect both wild and domestic animals. Merozoite surface antigens (MSAs) have been identified as efficient immunogens in Babesia-infected animals. MSAs play a key role in the invasion process and have been proposed as potential targets for vaccine development. Epitope-based vaccines offer several advantages over whole protein vaccines as the immunogenic proteins are small and can induce both Th1 and Th2 immune responses, which are desirable for protection. However, the MSA, particularly gp45, is polymorphic in Babesia bigemina, posing a challenge to vaccine development. The purpose of this study was to develop a recombinant gpME (gp45-multi-epitope) for a vaccine against Babesia bigemina. B-cell, T-cell, and HLA epitope predictions were used to synthesize the gpME sequence from the consensus sequence of gp45. The gpME sequence was synthesized and cloned in the pET28α vector through the commercial biotechnology company to get pET28-gpME. The plasmid cloned with the gpME sequence comprising 1068 bp was expressed in a bacterial expression system. A band of 39 kDa of rec-gpME was obtained via SDS-PAGE and Western blotting. Rec-gpME @200ng was injected in calves 3 times at 2 weeks interval. The humoral response was evaluated through the indirect ELISA method. The ELISA with rec-gp45 protein showed a significant value of optical density. The recombinant protein containing multiple epitopes from the MSA gp45 may represent a promising candidate for a vaccine against Babesia bigemina.
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Affiliation(s)
- Z Ul Rehman
- Department of Parasitology, University of Veterinary and Animal Sciences, Syed Abdul Qadir Jillani (Out Fall) Road, Lahore, 54000, Pakistan
| | - M Suleman
- University Diagnostic Laboratory, Institute of Microbiology, University of Veterinary and Animal Sciences, Syed Abdul Qadir Jillani (Out Fall) Road, Lahore, 54000, Pakistan
| | - K Ashraf
- Department of Parasitology, University of Veterinary and Animal Sciences, Syed Abdul Qadir Jillani (Out Fall) Road, Lahore, 54000, Pakistan
| | - S Ali
- Department of Parasitology, University of Veterinary and Animal Sciences, Syed Abdul Qadir Jillani (Out Fall) Road, Lahore, 54000, Pakistan
| | - S Rahman
- Department of Parasitology, University of Veterinary and Animal Sciences, Syed Abdul Qadir Jillani (Out Fall) Road, Lahore, 54000, Pakistan
| | - M I Rashid
- Department of Parasitology, University of Veterinary and Animal Sciences, Syed Abdul Qadir Jillani (Out Fall) Road, Lahore, 54000, Pakistan
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Rahman S, Nath S, Mohan U, Das AK. Targeting Staphylococcal Cell-Wall Biosynthesis Protein FemX Through Steered Molecular Dynamics and Drug-Repurposing Approach. ACS Omega 2023; 8:29292-29301. [PMID: 37599983 PMCID: PMC10433341 DOI: 10.1021/acsomega.3c02691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 07/24/2023] [Indexed: 08/22/2023]
Abstract
Staphylococcus aureus-mediated infection is a serious threat in this antimicrobial-resistant world. S. aureus has become a "superbug" by challenging conventional as well as modern treatment strategies. Nowadays, drug repurposing has become a new trend for the discovery of new drug molecules. This study focuses on evaluating FDA-approved drugs that can be repurposed against S. aureus infection. Steered molecular dynamics (SMD) has been performed for Lumacaftor and Olaparib against staphylococcal FemX to understand their binding to the active site. A time-dependent external force or rupture force has been applied to the ligands to calculate the force required to dislocate the ligand from the binding pocket. SMD analysis indicates that Lumacaftor has a high affinity for the substrate binding pocket in comparison to Olaparib. Umbrella sampling exhibits that Lumacaftor possesses a higher free energy barrier to displace it from the ligand-binding site. The bactericidal activity of Lumacaftor and Olaparib has been tested, and it shows that Lumacaftor has moderate activity along with biofilm inhibition potential (MIC value with conc. 128 μg/mL). Pharmacokinetic and toxicology evaluations indicate that Lumacaftor has higher pharmacokinetic potential with lower toxicity. This is the first experimental report where staphylococcal FemX has been targeted for the discovery of new drugs. It is suggested that Lumacaftor may be a potential lead molecule against S. aureus.
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Affiliation(s)
- Shakilur Rahman
- Department
of Biotechnology, Indian Institute of Technology
Kharagpur, Kharagpur, West Bengal 721302, India
| | - Subham Nath
- National
Institute of Pharmaceutical Education and Research Kolkata, Kolkata, West Bengal 700054, India
| | - Utpal Mohan
- National
Institute of Pharmaceutical Education and Research Kolkata, Kolkata, West Bengal 700054, India
| | - Amit Kumar Das
- Department
of Biotechnology, Indian Institute of Technology
Kharagpur, Kharagpur, West Bengal 721302, India
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Dwiyanto J, Huët MAL, Hussain MH, Su TT, Tan JBL, Toh KY, Lee JWJ, Rahman S, Chong CW. Social demographics determinants for resistome and microbiome variation of a multiethnic community in Southern Malaysia. NPJ Biofilms Microbiomes 2023; 9:55. [PMID: 37573460 PMCID: PMC10423249 DOI: 10.1038/s41522-023-00425-0] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Accepted: 08/03/2023] [Indexed: 08/14/2023] Open
Abstract
The prevalence of antibiotic-resistant bacteria in Southeast Asia is a significant concern, yet there is limited research on the gut resistome and its correlation with lifestyle and environmental factors in the region. This study aimed to profile the gut resistome of 200 individuals in Malaysia using shotgun metagenomic sequencing and investigate its association with questionnaire data comprising demographic and lifestyle variables. A total of 1038 antibiotic resistance genes from 26 classes were detected with a mean carriage rate of 1.74 ± 1.18 gene copies per cell per person. Correlation analysis identified 14 environmental factors, including hygiene habits, health parameters, and intestinal colonization, that were significantly associated with the resistome (adjusted multivariate PERMANOVA, p < 0.05). Notably, individuals with positive yeast cultures exhibited a reduced copy number of 15 antibiotic resistance genes. Network analysis highlighted Escherichia coli as a major resistome network hub, with a positive correlation to 36 antibiotic-resistance genes. Our findings suggest that E. coli may play a pivotal role in shaping the resistome dynamics in Segamat, Malaysia, and its abundance is strongly associated with the community's health and lifestyle habits. Furthermore, the presence of yeast appears to be associated with the suppression of antibiotic-resistance genes.
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Affiliation(s)
- J Dwiyanto
- AMILI, Singapore, 118261, Singapore.
- Department of Medical Microbiology, Faculty of Medicine, University of Malaya, Kuala Lumpur, 50603, Malaysia.
| | - M A L Huët
- Faculty of Science, University of Mauritius, Reduit, 80837, Mauritius
| | - M H Hussain
- School of Science, Monash University Malaysia, Bandar Sunway, 47500, Malaysia
| | - T T Su
- South East Asia Community Observatory, Segamat, 85000, Malaysia
| | - J B L Tan
- School of Science, Monash University Malaysia, Bandar Sunway, 47500, Malaysia
| | - K Y Toh
- AMILI, Singapore, 118261, Singapore
| | - J W J Lee
- AMILI, Singapore, 118261, Singapore
- Department of Medicine, National University Hospital, Singapore, 119228, Singapore
| | - S Rahman
- School of Science, Monash University Malaysia, Bandar Sunway, 47500, Malaysia
- Tropical Medicine and Biology Platform, Monash University Malaysia, Bandar Sunway, 47500, Malaysia
| | - C W Chong
- AMILI, Singapore, 118261, Singapore.
- School of Pharmacy, Monash University Malaysia, Bandar Sunway, 47500, Malaysia.
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Ahasan F, Nasir M, Perveen RA, Rahman N, Omar E, Akter S, Khanam M, Anny FC, Quadir R, Zahan T, Farha N, Chowdhury AS, Iqbal MJ, Akter MT, Rahman S, Begum T, Sabiha K, Anwar MA. Knowledge, Attitude and Practice of Undergraduate Medical Students of Bangladesh Regarding COVID-19 and its Vaccination. Mymensingh Med J 2023; 32:794-801. [PMID: 37391976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/02/2023]
Abstract
Medical students are one of the socially active, reliable, and persuading population of information, prevention and control, and incentive of vaccination to stop the current pandemic situation. Consequently, knowing the status of medical students' knowledge, about symptoms, and transmission of disease, prevention of COVID-19 and their attitudes towards a vaccine is important. This multi-center cross-sectional descriptive study was one of the first ones in Bangladesh among the undergraduate medical students who completed pathology, microbiology, and pharmacology. The study was conducted from March to April 2021, using a convenience sampling method in twelve government and non-government medical colleges. Among 1132 who completed the questionnaire, and 15 students from different centers were excluded from the pre-testing and face validation. The age of the 1117 respondents were 22 to 23 years, of which the majority of the respondents were female 749 (67.0%), and 368 (33.0%) were male. Almost all participants had correct knowledge (84.1%) about the symptoms of COVID-19. But 59.2% had wrong knowledge about transmission of disease by an afebrile person. Above 60.0 % of the participants have worn a facial mask when contacting people, refrained from shaking hands, washed hands, avoided people with signs and symptoms suggestive of COVID-19, and avoided crowded places as a practice of prevention. 37.6% of medical students showed positive attitudes about the participation of management of a COVID-19 patient. Most of the participants' decided to have a vaccine depending on its availability. But 31.5% had trust in natural immunity rather than vaccination. Most undergraduate Medical college students understood the basic information, possessed a positive attitude, and presented good practice towards the COVID-19 and vaccination. They play a crucial role in motivation and acceptance of vaccines among the general citizen to fight back against the pandemic in the country with limited resources.
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Affiliation(s)
- F Ahasan
- Dr Faizul Ahasan, Assistant Professor, Department of Pharmacology, Ibrahim Medical College, Dhaka, Bangladesh
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14
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Rahman S, Youssef Y, Maroun G, Inaty D, Kheil MH, Moawad G. Eyes, menstruation and endometriosis. Facts Views Vis Obgyn 2023; 15:107-113. [PMID: 37436046 PMCID: PMC10410658 DOI: 10.52054/fvvo.15.2.074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/13/2023] Open
Abstract
Vicarious menstruation refers to cyclical bleeding outside the uterine cavity during the menstrual cycle. Haemolacria, or blood in tears, is a rare medical phenomenon that can occur with menstruation or in association with endometriosis. Endometriosis, defined by the presence of endometrial-like tissue in extra-uterine sites, affects around 10% of fertile women; the ocular system is one of the rarest sites it can be present in. Endometriosis usually requires a biopsy for diagnosis, and the anatomic difficulty of obtaining a biopsy of the ocular system makes ocular endometriosis diagnosis more obscure. However, few cases have been described in the literature and due to the psychological, physical, and social implications of haemolacria on the patient, treatment is of utmost importance. We reviewed the literature on ocular endometriosis and ocular vicarious menstruation with the aim to discuss the clinical presentation, necessary workup and various treatment modalities, while also shedding light on the connection between the eyes and endometriosis in general. It is hypothesised that uterine endometrial cells can travel lymphatically or haematogenously and deposit extra-uterine endometriotic lesions that bleed in response to hormonal changes in the menstrual cycle. Additionally, the conjunctival vasculature has been found to be responsive to hormonal changes due to the presence of oestrogen and progesterone receptors, causing bleeding at the corresponding sites, even without endometriotic lesions. Clinical correlation of the haemolacria with the menstrual cycle can suffice for a diagnosis of vicarious menstruation, and thus opens the possibility of treatment to provide symptomatic treatment for the patient.
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15
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Erchick DJ, Hazel EA, Katz J, Lee ACC, Diaz M, Wu LSF, Yoshida S, Bahl R, Grandi C, Labrique AB, Rashid M, Ahmed S, Roy AD, Haque R, Shaikh S, Baqui AH, Saha SK, Khanam R, Rahman S, Shapiro R, Zash R, Silveira MF, Buffarini R, Kolsteren P, Lachat C, Huybregts L, Roberfroid D, Zeng L, Zhu Z, He J, Qiu X, Gebreyesus SH, Tesfamariam K, Bekele D, Chan G, Baye E, Workneh F, Asante KP, Kaali EB, Adu-Afarwuah S, Dewey KG, Gyaase S, Wylie BJ, Kirkwood BR, Manu A, Thulasiraj RD, Tielsch J, Chowdhury R, Taneja S, Babu GR, Shriyan P, Ashorn P, Maleta K, Ashorn U, Mangani C, Acevedo-Gallegos S, Rodriguez-Sibaja MJ, Khatry SK, LeClerq SC, Mullany LC, Jehan F, Ilyas M, Rogerson SJ, Unger HW, Ghosh R, Musange S, Ramokolo V, Zembe-Mkabile W, Lazzerini M, Rishard M, Wang D, Fawzi WW, Minja DTR, Schmiegelow C, Masanja H, Smith E, Lusingu JPA, Msemo OA, Kabole FM, Slim SN, Keentupthai P, Mongkolchati A, Kajubi R, Kakuru A, Waiswa P, Walker D, Hamer DH, Semrau KEA, Chaponda EB, Chico RM, Banda B, Musokotwane K, Manasyan A, Pry JM, Chasekwa B, Humphrey J, Black RE. Vulnerable newborn types: analysis of subnational, population-based birth cohorts for 541 285 live births in 23 countries, 2000-2021. BJOG 2023. [PMID: 37156239 DOI: 10.1111/1471-0528.17510] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Revised: 04/04/2023] [Accepted: 04/07/2023] [Indexed: 05/10/2023]
Abstract
OBJECTIVE To examine prevalence of novel newborn types among 541 285 live births in 23 countries from 2000 to 2021. DESIGN Descriptive multi-country secondary data analysis. SETTING Subnational, population-based birth cohort studies (n = 45) in 23 low- and middle-income countries (LMICs) spanning 2000-2021. POPULATION Liveborn infants. METHODS Subnational, population-based studies with high-quality birth outcome data from LMICs were invited to join the Vulnerable Newborn Measurement Collaboration. We defined distinct newborn types using gestational age (preterm [PT], term [T]), birthweight for gestational age using INTERGROWTH-21st standards (small for gestational age [SGA], appropriate for gestational age [AGA] or large for gestational age [LGA]), and birthweight (low birthweight, LBW [<2500 g], nonLBW) as ten types (using all three outcomes), six types (by excluding the birthweight categorisation), and four types (by collapsing the AGA and LGA categories). We defined small types as those with at least one classification of LBW, PT or SGA. We presented study characteristics, participant characteristics, data missingness, and prevalence of newborn types by region and study. RESULTS Among 541 285 live births, 476 939 (88.1%) had non-missing and plausible values for gestational age, birthweight and sex required to construct the newborn types. The median prevalences of ten types across studies were T+AGA+nonLBW (58.0%), T+LGA+nonLBW (3.3%), T+AGA+LBW (0.5%), T+SGA+nonLBW (14.2%), T+SGA+LBW (7.1%), PT+LGA+nonLBW (1.6%), PT+LGA+LBW (0.2%), PT+AGA+nonLBW (3.7%), PT+AGA+LBW (3.6%) and PT+SGA+LBW (1.0%). The median prevalence of small types (six types, 37.6%) varied across studies and within regions and was higher in Southern Asia (52.4%) than in Sub-Saharan Africa (34.9%). CONCLUSIONS Further investigation is needed to describe the mortality risks associated with newborn types and understand the implications of this framework for local targeting of interventions to prevent adverse pregnancy outcomes in LMICs.
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Affiliation(s)
- D J Erchick
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - E A Hazel
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - J Katz
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - A C C Lee
- Department of Pediatric Newborn Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - M Diaz
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - L S F Wu
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - S Yoshida
- Department of Maternal, Newborn, Child and Adolescent Health and Ageing, World Health Organization, Geneva, Switzerland
| | - R Bahl
- Department of Maternal, Newborn, Child and Adolescent Health and Ageing, World Health Organization, Geneva, Switzerland
| | - C Grandi
- Argentine Society of Paediatrics, Ciudad Autónoma de Buenos Aires, Argentina
| | - A B Labrique
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - M Rashid
- IntraHealth International, Dhaka, Bangladesh
| | - S Ahmed
- Projahnmo Research Foundation, Dhaka, Bangladesh
| | - A D Roy
- Projahnmo Research Foundation, Dhaka, Bangladesh
| | - R Haque
- JiVitA Maternal and Child Health Research Project, Rangpur, Bangladesh
| | - S Shaikh
- JiVitA Maternal and Child Health Research Project, Rangpur, Bangladesh
| | - A H Baqui
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - S K Saha
- Child Health Research Foundation, Dhaka, Bangladesh
| | - R Khanam
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - S Rahman
- Department of Women's and Children's Health, Uppsala University, Uppsala, Sweden
| | - R Shapiro
- Department of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
| | - R Zash
- Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA
| | - M F Silveira
- Postgraduate Program in Epidemiology, Federal University of Pelotas, Pelotas, Brazil
| | - R Buffarini
- Postgraduate Program in Epidemiology, Federal University of Pelotas, Pelotas, Brazil
| | - P Kolsteren
- Department of Food Technology, Safety and Health, Ghent University, Ghent, Belgium
| | - C Lachat
- Department of Food Technology, Safety and Health, Ghent University, Ghent, Belgium
| | - L Huybregts
- Department of Food Technology, Safety and Health, Ghent University, Ghent, Belgium
- Poverty, Health and Nutrition Division, International Food Policy Research Institute, Washington, DC, USA
| | - D Roberfroid
- Medicine Department, Faculty of Medicine, University of Namur, Namur, Belgium
| | - L Zeng
- Department of Epidemiology and Biostatistics, School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Z Zhu
- Department of Epidemiology and Biostatistics, School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - J He
- Division of Birth Cohort Study, Guangzhou Women and Children's Medical Centre, Guangzhou Medical University, Guangzhou, China
| | - X Qiu
- Division of Birth Cohort Study, Guangzhou Women and Children's Medical Centre, Guangzhou Medical University, Guangzhou, China
| | - S H Gebreyesus
- Department of Nutrition and Dietetics, School of Public Health, Addis Ababa University, Addis Ababa, Ethiopia
| | - K Tesfamariam
- Department of Food Technology, Safety and Health, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - D Bekele
- Department of Obstetrics and Gynecology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
| | - G Chan
- Department of Obstetrics and Gynecology, St. Paul's Hospital Millennium Medical College, Addis Ababa, Ethiopia
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
- Department of Pediatrics, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - E Baye
- Department of Pediatric Newborn Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - F Workneh
- Addis Continental Institute of Public Health, Addis Ababa, Ethiopia
| | - K P Asante
- Kintampo Health Research Centre, Research and Development Division, Kintampo, Ghana
| | - E B Kaali
- Kintampo Health Research Centre, Research and Development Division, Kintampo, Ghana
| | - S Adu-Afarwuah
- Department of Nutrition and Food Science, University of Ghana, Accra, Ghana
| | - K G Dewey
- Institute for Global Nutrition, Department of Nutrition, University of California, Davis, California, USA
| | - S Gyaase
- Department of Statistics, Kintampo Health Research Centre, Kintampo, Ghana
| | - B J Wylie
- Department of Obstetrics and Gynecology, Columbia University Medical Center, New York, New York, USA
| | - B R Kirkwood
- Epidemiology and Population Health, London School of Hygiene & Tropical Medicine, London, UK
| | - A Manu
- Epidemiology and Population Health, London School of Hygiene & Tropical Medicine, London, UK
- University of Ghana School of Public Health, Accra, Ghana
| | | | - J Tielsch
- Department of Global Health, Milken Institute School of Public Health, George Washington University, Washington, DC, USA
| | - R Chowdhury
- Centre for Health Research and Development, Society for Applied Studies, Delhi, India
| | - S Taneja
- Centre for Health Research and Development, Society for Applied Studies, Delhi, India
| | - G R Babu
- Department of Population Medicine, College of Medicine, QU Health, Qatar University, Doha, Qatar
| | - P Shriyan
- Indian Institute of Public Health, Public Health Foundation of India, Bengaluru, India
| | - P Ashorn
- Center for Child, Adolescent and Maternal Health Research, Faculty of Medicine and Health Technology, Tampere University and Tampere University Hospital, Tampere, Finland
| | - K Maleta
- School of Global and Public Health, Kamuzu University of Health Sciences, Blantyre, Malawi
| | - U Ashorn
- Center for Child, Adolescent and Maternal Health Research, Faculty of Medicine and Health Technology, Tampere University and Tampere University Hospital, Tampere, Finland
| | - C Mangani
- School of Global and Public Health, Kamuzu University of Health Sciences, Blantyre, Malawi
| | - S Acevedo-Gallegos
- National Institute of Perinatology, Maternal-Fetal Medicine Department, Mexico City, Mexico
| | - M J Rodriguez-Sibaja
- National Institute of Perinatology, Maternal-Fetal Medicine Department, Mexico City, Mexico
| | - S K Khatry
- Nepal Nutrition Intervention Project - Sarlahi (NNIPS), Kathmandu, Nepal
| | - S C LeClerq
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
- Nepal Nutrition Intervention Project - Sarlahi (NNIPS), Kathmandu, Nepal
| | - L C Mullany
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - F Jehan
- Department of Paediatrics and Child Health, The Aga Khan University, Karachi, Pakistan
| | - M Ilyas
- The Aga Khan University, Karachi, Pakistan
| | - S J Rogerson
- Department of Infectious Diseases, University of Melbourne, Doherty Institute, Melbourne, Victoria, Australia
| | - H W Unger
- Menzies School of Health Research, Charles Darwin University, Darwin, Northern Territory, Australia
| | - R Ghosh
- Institute for Global Health Sciences, Department of Epidemiology and Biostatistics, University of California San Francisco, San Francisco, California, USA
| | - S Musange
- School of Public Health, College of Medicine and Health Sciences, University of Rwanda, Kigali, Rwanda
| | - V Ramokolo
- HIV and Other Infectious Diseases Research Unit, South African Medical Research Council, Cape Town, South Africa
- Gertrude H Sergievsky Center, Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, New York, USA
| | - W Zembe-Mkabile
- Health Systems Research Unit, South African Medical Research Council, Cape Town, South Africa
- College Graduate of Studies, University of South Africa, Johannesburg, South Africa
| | - M Lazzerini
- Institute for Maternal and Child Health - IRCCS 'Burlo Garofolo', WHO Collaborating Centre for Maternal and Child Health, Trieste, Italy
| | - M Rishard
- University Obstetrics Unit, De Soysa Hospital for Women, Colombo, Sri Lanka
- Department of Obstetrics & Gynaecology, University of Colombo, Colombo, Sri Lanka
| | - D Wang
- Department of Global and Community Health, College of Public Health, George Mason University, Fairfax, Virginia, USA
| | - W W Fawzi
- Department of Global Health and Population, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
| | - D T R Minja
- National Institute for Medical Research, Tanga Centre, Tanga, Tanzania
| | - C Schmiegelow
- Centre for Medical Parasitology, Department for Immunology and Microbiology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - H Masanja
- Ifakara Health Institute, Dar es Salaam, Tanzania
| | - E Smith
- Department of Global Health, Milken Institute School of Public Health, Washington, DC, USA
| | - J P A Lusingu
- National Institute for Medical Research, Dar es Salaam, Tanzania
| | - O A Msemo
- National Institute for Medical Research, Dar es Salaam, Tanzania
| | - F M Kabole
- Ministry of Health Zanzibar, Zanzibar, Tanzania
| | - S N Slim
- Ministry of Health Zanzibar, Zanzibar, Tanzania
| | - P Keentupthai
- College of Medicine and Public Health, Ubon Ratchathani University, Ubon Ratchathani, Thailand
| | - A Mongkolchati
- ASEAN Institute for Health Development, Mahidol University, Salaya, Thailand
| | - R Kajubi
- Infectious Diseases Research Collaboration, Kampala, Uganda
| | - A Kakuru
- Infectious Diseases Research Collaboration, Kampala, Uganda
| | - P Waiswa
- Department of Health Policy Planning and Management, Makerere University School of Public Health, New Mulago Hospital Complex, Kampala, Uganda
- Division of Global Health, Department of Public Health Sciences, Karolinska Institutet, Stockholm, Sweden
| | - D Walker
- Institute for Global Health Sciences and Department of Obstetrics and Gynecology, University of California San Francisco, San Francisco, California, USA
| | - D H Hamer
- Department of Global Health, Boston University School of Public Health, Boston, Massachusetts, USA
- Section of Infectious Diseases, Department of Medicine, Boston University Chobanian & Avedisian School of Medicine, Boston, Massachusetts, USA
| | - K E A Semrau
- Ariadne Labs, Brigham and Women's Hospital and Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
- Division of Global Health Equity & Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - E B Chaponda
- Department of Biological Sciences, School of Natural Sciences, University of Zambia, Lusaka, Zambia
| | - R M Chico
- Department of Disease Control, Faculty of Infectious & Tropical Diseases, London School of Hygiene & Tropical Medicine, London, UK
| | - B Banda
- Research Unit for Environmental Sciences and Management, North-West University, Potchefstroom, South Africa
| | - K Musokotwane
- Health Specialist PMTCT and Pediatric AIDS, UNICEF, Lusaka, Zambia
| | - A Manasyan
- University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - J M Pry
- Centre for Infectious Disease Research in Zambia, Lusaka, Zambia
| | - B Chasekwa
- Zvitambo Institute for Maternal and Child Health Research, Harare, Zimbabwe
| | - J Humphrey
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - R E Black
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
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16
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Banu LA, Masum MM, Rahman S, Mahbuba S, Hossain M, Hosen MJ, Banerjee SK, Adhikary DK, Habib SA, Sultana GN, Islam MN. Identification of Variants and Mutational Analyses of Cardiac Myosin-binding Protein C (MYBPC3) Gene of Adult Bangladeshi Patients with Hypertrophic Cardiomyopathy. Mymensingh Med J 2023; 32:520-526. [PMID: 37002766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Hypertrophic cardiomyopathy (HCM) is the most prevalent genetic hereditary cardiomyopathy characterized by sudden cardiac death. Mutations in the MYBPC3 gene are often the most prevalent genetic abnormality in HCM with a prevalence ranging from 20.0 to 42.0%. The mutation spectrum is available for different countries, but such studies are lacking in the Asian population including Bangladeshi patients. A cross-sectional descriptive study was conducted for mutation analysis of the whole MYBPC3 gene on a cohort of 75 HCM Bengali Bangladeshi probands through Next Generation Sequencing at the Genetic Research Lab of Bangabandhu Sheikh Mujib Medical University from 2016 to 2019. The structural and functional impact of the mutations was further analyzed by in silico process. We analyzed the data and found 103 variants in 102 locations in the MYBPC3 gene. Variants were identified in both the coding region and the non-coding region. We found one possibly novel variant in the MYBPC3 gene. The findings of this research will help to develop a genetic database of HCM which will help in the early diagnosis and proper management of HCM patients in Bangladesh. One pathogenic splice donor variant (47356592 C >T) was found in the intronic region. Among the variants in the coding region, one missense mutation was pathogenic (NP₋000247.2: p.Asp770Asn) which was found in seven patients and another one is of conflicting interpretations of pathogenicity (NP₋000247.2: p.Ser217Gly) which was found in two patients. We have identified one in-frame deletion (NP₋000247.2: p.Ala433del) that is possible a novel variant responsible for the development of HCM.
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Affiliation(s)
- L A Banu
- Professor Laila Anjuman Banu, Professor, Department of Anatomy, Bangabandhu Sheikh Mujib Medical University (BSMMU), Dhaka, Bangladesh; E-mail:
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17
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Wells M, Raja M, Rahman S. Corrigendum to 'Point-of-care viscoelastic testing' [BJA Education 22 (2022) 416-423]. BJA Educ 2023; 23:118-119. [PMID: 36844441 PMCID: PMC9947957 DOI: 10.1016/j.bjae.2022.11.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
[This corrects the article DOI: 10.1016/j.bjae.2022.07.003.].
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Affiliation(s)
- M. Wells
- Barts Health NHS Trust, London, UK
| | - M. Raja
- Royal Free London NHS Foundation Trust, London, UK
| | - S. Rahman
- Royal Free London NHS Foundation Trust, London, UK
- Corresponding author:
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Irfan M, Nabi RAU, Hussain H, Naz MY, Shukrullah S, Khawaja HA, Rahman S, Althobiani F. Numerical sensitivity analysis of temperature‐dependent reaction rate constants for optimized thermal conversion of high‐density plastic waste into combustible fuels. CAN J CHEM ENG 2023. [DOI: 10.1002/cjce.24883] [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: 02/24/2023]
Affiliation(s)
- M. Irfan
- Electrical Engineering Department; College of Engineering Najran University Najran Saudi Arabia
| | - R. A. U. Nabi
- Department of Physics University of Agriculture Faisalabad Pakistan
| | - H. Hussain
- Department of Agricultural Engineering, Faculty of Agricultural Engineering & Technology University of Agriculture Faisalabad Pakistan
| | - M. Y. Naz
- Department of Physics University of Agriculture Faisalabad Pakistan
| | - S. Shukrullah
- Department of Physics University of Agriculture Faisalabad Pakistan
| | - H. A. Khawaja
- Department of Automation and Process Engineering UiT The Arctic University of Norway Tromsø Norway
| | - S. Rahman
- Electrical Engineering Department; College of Engineering Najran University Najran Saudi Arabia
| | - F. Althobiani
- Faculty of Maritime Studies King Abdulaziz University Jeddah Saudi Arabia
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Singh BP, Sohrab SS, Athar M, Alandijany TA, Kumari S, Nair A, Kumari S, Mehra K, Chowdhary K, Rahman S, Azhar EI. Substantial Changes in Selected Volatile Organic Compounds (VOCs) and Associations with Health Risk Assessments in Industrial Areas during the COVID-19 Pandemic. Toxics 2023; 11:165. [PMID: 36851040 PMCID: PMC9963041 DOI: 10.3390/toxics11020165] [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] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 02/01/2023] [Accepted: 02/06/2023] [Indexed: 06/18/2023]
Abstract
During the COVID-19 pandemic, governments in many countries worldwide, including India, imposed several restriction measures, including lockdowns, to prevent the spread of the infection. COVID-19 lockdowns led to a reduction in gaseous and particulate pollutants in ambient air. In the present study, we investigated the substantial changes in selected volatile organic compounds (VOCs) after the outbreak of the coronavirus pandemic and associations with health risk assessments in industrial areas. VOC data from 1 January 2019 to 31 December 2021 were collected from the Central Pollution Control Board (CPCB) website, to identify percentage changes in VOC levels before, during, and after COVID-19. The mean TVOC levels at all monitoring stations were 47.22 ± 30.15, 37.19 ± 37.19, and 32.81 ± 32.81 µg/m3 for 2019, 2020, and 2021, respectively. As a result, the TVOC levels gradually declined in consecutive years due to the pandemic in India. The mean TVOC levels at all monitoring stations declined from 9 to 61% during the pandemic period as compared with the pre-pandemic period. In the current study, the T/B ratio values ranged from 2.16 (PG) to 26.38 (NL), which indicated that the major pollutant contributors were traffic and non-traffic sources during the pre-pandemic period. The present findings indicated that TVOC levels had positive but low correlations with SR, BP, RF, and WD, with correlation coefficients (r) of 0.034, 0.118, 0.012, and 0.007, respectively, whereas negative correlations were observed with AT and WS, with correlation coefficients (r) of -0.168 and -0.150, respectively. The lifetime cancer risk (LCR) value for benzene was reported to be higher in children, followed by females and males, for the pre-pandemic, pandemic, and post-pandemic periods. A nationwide scale-up of this study's findings might be useful in formulating future air pollution reduction policies associated with a reduction in health risk factors. Furthermore, the present study provides baseline data for future studies on the impacts of anthropogenic activities on the air quality of a region.
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Affiliation(s)
- Bhupendra Pratap Singh
- Department of Environmental Studies, Deshbadhu College, University of Delhi, New Delhi 110019, India
- Delhi School of Climate Change and Sustainability (Institute of Eminence), University of Delhi, New Delhi 110007, India
| | - Sayed Sartaj Sohrab
- Special Infectious Agents Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Department of Medical Laboratory Sciences, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Mohammad Athar
- Science and Technology Unit, Umm Al-Qura University, Makkah 21955, Saudi Arabia
- Department of Medical Genetics, Faculty of Medicine, Umm Al-Qura University, Makkah 21955, Saudi Arabia
| | - Thamir A. Alandijany
- Special Infectious Agents Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Department of Medical Laboratory Sciences, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Saumya Kumari
- Department of Zoology, Deshbandhu College, University of Delhi, New Delhi 110019, India
| | - Arathi Nair
- Department of Zoology, Deshbandhu College, University of Delhi, New Delhi 110019, India
| | - Sweety Kumari
- Department of Zoology, Deshbandhu College, University of Delhi, New Delhi 110019, India
| | - Kriti Mehra
- Department of Life Science, Deshbadhu College, University of Delhi, New Delhi 110019, India
| | - Khyati Chowdhary
- Department of Life Science, Deshbadhu College, University of Delhi, New Delhi 110019, India
| | - Shakilur Rahman
- Department of Medical Elementology and Toxicology, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi 110019, India
| | - Esam Ibraheem Azhar
- Special Infectious Agents Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Department of Medical Laboratory Sciences, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah 21589, Saudi Arabia
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20
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Rahman S, Sarkar K, Das AK. Exploring staphylococcal superantigens to design a potential multi-epitope vaccine against Staphylococcus aureus: an in-silico reverse vaccinology approach. J Biomol Struct Dyn 2023; 41:13098-13112. [PMID: 36729064 DOI: 10.1080/07391102.2023.2171138] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Accepted: 01/13/2023] [Indexed: 02/03/2023]
Abstract
Staphylococcus aureus is a horrifying bacteria capable of causing millions of deaths yearly across the globe. A major contribution to the success of S. aureus as an ESKAPE pathogen is the abundance of virulence factors that can manipulate the innate and adaptive immune system of the individual. Currently, no vaccine is available to treat S. aureus-mediated infections. In this study, we present in-silico approaches to design a stable, safe and immunogenic vaccine that could help to control the infections associated with the bacteria. Three vital pathogenic secreted toxins of S. aureus, such as staphylococcal enterotoxin A (SEA), staphylococcal enterotoxin B (SEB), Toxic-shock syndrome toxin (TSST-1), were selected using the reverse vaccinology approach to design the multi-epitope vaccine (MEV). Linear B-lymphocyte, cytotoxic T-lymphocyte (CTL) and helper T-lymphocyte (HTL) epitopes were predicted from these selected proteins. For designing the multi-epitope vaccine (MEV), B-cell epitopes were joined with the KK linker, CTL epitopes were joined with the AAY linker, and HTL epitopes were joined with the GPGPG linker. Finally, to increase the immune response to the vaccine, a human β-defensin-3 (hBD-3) adjuvant was added to the N-terminus of the MEV construct. The final MEV was found to be antigenic and non-allergen in nature. In-silico immune simulation and cloning analysis predicted the immune-stimulating potential of the designed MEV construct along with the cloning feasibility in the pET28a(+) vector with the E. coli expression system. This immunoinformatics study provides a platform for designing a suitable, safe and effective vaccine against S. aureus.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Shakilur Rahman
- Department of Biotechnology, Indian Institute of Technology Kharagpur, Kharagpur, India
| | - Kasturi Sarkar
- Department of Biotechnology, Indian Institute of Technology Kharagpur, Kharagpur, India
| | - Amit Kumar Das
- Department of Biotechnology, Indian Institute of Technology Kharagpur, Kharagpur, India
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21
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Bartlett EC, Rahman S, Ridge CA. Percutaneous image-guided thermal ablation of lung cancer: What is the evidence? Lung Cancer 2023; 176:14-23. [PMID: 36571982 DOI: 10.1016/j.lungcan.2022.12.010] [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: 10/13/2022] [Revised: 12/12/2022] [Accepted: 12/19/2022] [Indexed: 12/24/2022]
Abstract
Thermal ablation techniques have now been used for more than twenty years in the treatment of primary lung tumours, predominantly non-small cell lung cancer (NSCLC). Although primarily used for the treatment of early-stage disease in non-surgical patients, thermal ablation is now also being used in selected patients with oligometastatic and oligoprogressive disease. This review discusses the techniques available for thermal ablation, the evidence for use of thermal ablation in primary lung tumours in early- and advanced-stage disease and compares thermal ablation to alternative treatment strategies.
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Affiliation(s)
- E C Bartlett
- Royal Brompton Hospital (Guy's and St Thomas' NHS Foundation Trust), Department of Radiology, Sydney Street, London SW3 6NP, United Kingdom.
| | - S Rahman
- Royal Brompton Hospital (Guy's and St Thomas' NHS Foundation Trust), Department of Radiology, Sydney Street, London SW3 6NP, United Kingdom
| | - C A Ridge
- Royal Brompton Hospital (Guy's and St Thomas' NHS Foundation Trust), Department of Radiology, Sydney Street, London SW3 6NP, United Kingdom; National Heart and Lung Institute, Imperial College, London SW3 6LY, United Kingdom
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Obiechina N, Michael A, Gill A, Carey P, Shah G, Nehikhare I, Khan R, Slavica M, Khan T, Rahman S, Mushtaq W, Brar H, Senthilselvan S, Mukherjee B, Nandi A. 1251 FRAILTY PREVALENCE AND RISK OF SARCOPENIA IN OLDER HEART FAILURE (HF) INPATIENTS. Age Ageing 2023. [DOI: 10.1093/ageing/afac322.044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Abstract
Introduction
Both frailty and HF are common in the elderly population. Elderly HF patients have an increased risk of frailty and elderly frail patients are at a higher risk of developing HF. Frailty is an independent predictor of mortality in cardiovascular disease. Sarcopenia (defined as decreased muscle mass and muscle strength and/or performance) is also prevalent in HF patients and may progress to cardiac cachexia. HF may induce sarcopenia and sarcopenia may contribute to the poor prognosis of HF.
Aims
Methods
A cross-sectional, retrospective analysis of consecutive patients, 60 years and over, admitted with HF to a UK hospital. Data was manually extracted from anonymized electronic records. The Rockwood Clinical Frailty Scale (CFS) was used for assessment for frailty and the SARC-F tool was used for screening for sarcopenia. Patients with medical history of HF but did not present with decompensated HF were excluded. Also, patients with incomplete data were excluded. The IBM SPSS 28 statistical package was used for statistical analysis. Descriptive statistics and risk estimates were calculated.
Results
163 patients were analysed; 82 males and 81 females. The mean age was 81.4 years (SD 9.69). 71.5 % of patients were frail while 28.5 % were non-frail. The risk of sarcopenia was 10.9 times greater in the frail than in the non-frail patients (OR = 10.9; 95% C.I 4.85 – 24.67). There was a lower risk of sarcopenia in male patients than in the female patients (OR =0.45; 95% C.I 0.22 – 0.94).
Conclusions
Frailty is prevalent in older heart failure inpatients. It significantly increases the risk of sarcopenia in these patients. Women are at higher risk of sarcopenia than men. More research is needed into frailty and sarcopenia in.
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Affiliation(s)
| | | | - A Gill
- Queen's Hospital , Burton on Trent, UK
| | - P Carey
- Queen's Hospital , Burton on Trent, UK
| | - G Shah
- Queen's Hospital , Burton on Trent, UK
| | | | - R Khan
- Queen's Hospital , Burton on Trent, UK
| | - M Slavica
- Queen's Hospital , Burton on Trent, UK
| | - T Khan
- Queen's Hospital , Burton on Trent, UK
| | - S Rahman
- Queen's Hospital , Burton on Trent, UK
| | - W Mushtaq
- Queen's Hospital , Burton on Trent, UK
| | - H Brar
- Queen's Hospital , Burton on Trent, UK
| | | | | | - A Nandi
- Queen's Hospital , Burton on Trent, UK
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23
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Shah G, Nehikhare I, Obiechina N, Michael A, Gill A, Carey P, Khan R, Slavica M, Khan T, Rahman S, Mushtaq W, Brar H, Senthilselvan S, Mukherjee M, Nandi A. 1242 CO-MORBIDITY, FRAILTY AND EJECTION FRACTION IN OLDER HEART FAILURE INPATIENTS. Age Ageing 2023. [DOI: 10.1093/ageing/afac322.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
Abstract
Introduction
Co-morbidities and frailty are common in older heart failure patients. The aim of this study is to explore the relationship between co-morbidity, frailty and ejection fraction (EF) in older heart failure inpatients
Methods
A cross-sectional, observational, retrospective analysis of consecutive patients aged 60 years and over who were admitted with heart failure in a UK hospital. Patients with incomplete data were excluded. The Carlson’s comorbidity index (CCI) was used to compute comorbidity and the Rockwood Clinical Frailty Scale (CFS) was used to measure frailty. The EF was calculated as the midpoint of the ranges measured by echocardiography. IBM SPSS 28 software was used for statistical analysis. Descriptive statistics were used to measure baseline characteristics and Pearson’s correlation coefficient and linear regression were used to calculate correlation.
Results and discussion
101 patients were analysed; 48 males and 53 females. Mean age was 81.2 years(SD 9.98). Mean CCI was 6.97(SD 1.63) and mean CFS was 5.09(SD 1.14). There was statistically significant positive correlation between CCI and CFS (r= 0.232; p= .01). There was statistically significant inverse correlation between CCI and EF (r= -.277; p=. 005). When taking into account the level of frailty the correlation between CCI and EF was much stronger in non-frail than in frail patients (r= -.612; p=. 035 and r= -.216; p= .047 respectively). There was no correlation between CFS and EF (r= .095; p=.26). This was not surprising as HFpEF is the most common type of HF in the elderly. HFpEF patients are more likely to have more comorbidities and to be more frail compared to HFrEF patients.
Conclusion
There was a positive correlation between multi-morbidity and frailty in older inpatients admitted with heart failure. There was statistically significant inverse correlation between CCI and ejection fraction but there was no correlation between frailty and ejection.
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Affiliation(s)
- G Shah
- Queen's Hospital , Burton on Trent, UK
| | | | | | | | - A Gill
- Queen's Hospital , Burton on Trent, UK
| | - P Carey
- Queen's Hospital , Burton on Trent, UK
| | - R Khan
- Queen's Hospital , Burton on Trent, UK
| | - M Slavica
- Queen's Hospital , Burton on Trent, UK
| | - T Khan
- Queen's Hospital , Burton on Trent, UK
| | - S Rahman
- Queen's Hospital , Burton on Trent, UK
| | - W Mushtaq
- Queen's Hospital , Burton on Trent, UK
| | - H Brar
- Queen's Hospital , Burton on Trent, UK
| | | | | | - A Nandi
- Queen's Hospital , Burton on Trent, UK
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Singh BP, Zughaibi TA, Alharthy SA, Al-Asmari AI, Rahman S. Statistical analysis, source apportionment, and toxicity of particulate- and gaseous-phase PAHs in the urban atmosphere. Front Public Health 2023; 10:1070663. [PMID: 36703843 PMCID: PMC9871548 DOI: 10.3389/fpubh.2022.1070663] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Accepted: 12/14/2022] [Indexed: 01/12/2023] Open
Abstract
Introduction The concentrations of particulate and gaseous Polycyclic Hydrocarbons Carbon (PAHs) were determined in the urban atmosphere of Delhi in different seasons (winter, summer, and monsoon). Methodology The samples were collected using instrument air metric (particulate phase) and charcoal tube (gaseous phase) and analyzed through Gas chromatography. The principal component and correlation were used to identify the sources of particulate and gaseous PAHs during different seasons. Results and discussion The mean concentration of the sum of total PAHs (TPAHs) for particulate and gaseous phases at all the sites were found to be higher in the winter season (165.14 ± 50.44 ng/m3 and 65.73 ± 16.84 ng/m3) than in the summer season (134.08 ± 35.0 ng/m3 and 43.43 ± 9.59 ng/m3), whereas in the monsoon season the concentration was least (68.15 ± 18.25 ng/m3 and 37.63 1 13.62 ng/m3). The principal component analysis (PCA) results revealed that seasonal variations of PAHs accounted for over 86.9%, 84.5%, and 94.5% for the summer, monsoon, and winter seasons, respectively. The strong and positive correlation coefficients were observed between B(ghi)P and DahA (0.922), B(a)P and IcdP (0.857), and B(a)P and DahA (0.821), which indicated the common source emissions of PAHs. In addition to this, the correlation between Nap and Flu, Flu and Flt, B(a)P, and IcdP showed moderate to high correlation ranging from 0.68 to 0.75 for the particulate phase PAHs. The carcinogenic health risk values for gaseous and particulate phase PAHs at all sites were calculated to be 4.53 × 10-6, 2.36 × 10-5 for children, and 1.22 × 10-5, 6.35 × 10-5 for adults, respectively. The carcinogenic health risk for current results was found to be relatively higher than the prescribed standard of the Central Pollution Control Board, India (1.0 × 10-6).
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Affiliation(s)
- Bhupendra Pratap Singh
- Department of Environmental Studies, Deshbadhu College, University of Delhi, New Delhi, India
- Delhi School of Climate Change and Sustainability, Institute of Eminence, University of Delhi, New Delhi, India
| | - Torki A. Zughaibi
- Department of Medical Laboratory Sciences, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
- Toxicology and Forensic Science Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Saif A. Alharthy
- Department of Medical Laboratory Sciences, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
- Toxicology and Forensic Science Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Ahmed I. Al-Asmari
- Toxicology and Forensic Science Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia
- Laboratory Department, Ministry of Health, King Aziz Hospital, Jeddah, Saudi Arabia
| | - Shakilur Rahman
- Department of Medical Elementology and Toxicology, School of Chemical and Life Sciences, New Delhi, India
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Singh B, Pandey P, Wabaidur SM, Avtar R, Kumar P, Rahman S. Substantial changes in Gaseous pollutants and health effects during COVID-19 in Delhi, India. PeerJ 2023; 11:e14489. [PMID: 36643637 PMCID: PMC9835704 DOI: 10.7717/peerj.14489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Accepted: 11/09/2022] [Indexed: 01/10/2023] Open
Abstract
Background Coronavirus disease has affected the entire population worldwide in terms of physical and environmental consequences. Therefore, the current study demonstrates the changes in the concentration of gaseous pollutants and their health effects during the COVID-19 pandemic in Delhi, the national capital city of India. Methodology In the present study, secondary data on gaseous pollutants such as nitrogen dioxide (NO2), carbon monoxide (CO), sulfur dioxide (SO2), ammonia (NH3), and ozone (O3) were collected from the Central Pollution Control Board (CPCB) on a daily basis. Data were collected from January 1, 2020, to September 30, 2020, to determine the relative changes (%) in gaseous pollutants for pre-lockdown, lockdown, and unlockdown stages of COVID-19. Results The current findings for gaseous pollutants reveal that concentration declined in the range of 51%-83% (NO), 40%-69% (NOx), 31%-60% (NO2), and 25%-40% (NH3) during the lockdown compared to pre-lockdown period, respectively. The drastic decrease in gaseous pollutants was observed due to restricted measures during lockdown periods. The level of ozone was observed to be higher during the lockdown periods as compared to the pre-lockdown period. These gaseous pollutants are linked between the health risk assessment and hazard identification for non-carcinogenic. However, in infants (0-1 yr), Health Quotient (HQ) for daily and annual groups was found to be higher than the rest of the exposed group (toddlers, children, and adults) in all the periods. Conclusion The air quality values for pre-lockdown were calculated to be "poor category to "very poor" category in all zones of Delhi, whereas, during the lockdown period, the air quality levels for all zones were calculated as "satisfactory," except for Northeast Delhi, which displayed the "moderate" category. The computed HQ for daily chronic exposure for each pollutant across the child and adult groups was more than 1 (HQ > 1), which indicated a high probability to induce adverse health outcomes.
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Affiliation(s)
- Bhupendra Singh
- Delhi School of Climate Change and Sustainability (Institute of Eminence), University of Delhi, New Delhi, Delhi, India,Deshbandhu College, Department of Environmental Science, University of Delhi, New Delhi, Delhi, India
| | - Puneeta Pandey
- Department of Environmental Sciences and Technology, Central University of Punjab Bathinda, Bathinda, Punjab, India
| | | | - Ram Avtar
- Faculty of Environmental Earth Science, Hokkaido University, Sapporo, Japan, Sapporo, Japan
| | - Pramod Kumar
- Department of Chemistry, Sri Aurobindo College, University of Delhi, New Delhi, Delhi, India
| | - Shakilur Rahman
- Department of Medical Elementology and Toxicology, Jamia Hamdard, New Delhi, India
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26
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Wells M, Raja M, Rahman S. Point-of-care viscoelastic testing. BJA Educ 2022; 22:416-423. [PMID: 36304915 PMCID: PMC9596284 DOI: 10.1016/j.bjae.2022.07.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Revised: 07/04/2022] [Accepted: 07/12/2022] [Indexed: 10/31/2022] Open
Affiliation(s)
- M. Wells
- Barts Health NHS Trust, London, UK
| | - M. Raja
- Royal Free London NHS Foundation Trust, London, UK
| | - S. Rahman
- Royal Free London NHS Foundation Trust, London, UK
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Amin M, Mittendorfer-Rutz E, Björkenstam E, Virtanen M, Helgesson M, Gustafsson N, Rahman S. Time period effects in work disability due to common mental disorders among young employees. Eur J Public Health 2022. [DOI: 10.1093/eurpub/ckac130.083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Previous research on period effects in risk for work disability due to common mental disorders across employment sectors and occupational classes in young employees is lacking. Temporal changes in the healthcare system or social insurance policies or other structural/organisational changes could contribute to such time period effects. We aimed to investigate time period effects in the risk of work disability, defined as long-term sickness absence (LTSA) and disability pension (DP) due to common mental disorders (CMDs), among young employees according to their employment sector (private/public) and occupational class (non-manual/manual).
Methods
Three cohorts, including all employed individuals with complete information on employment sector and occupational class, aged 19-29 years and resident in Sweden on the 31-Dec-2004, 2009 and 2014 (n = 573,516, 665,138 and 600,889 individuals in cohort 2004, 2009 and 2014, respectively) were followed for four years. Crude and multivariate-adjusted hazard ratios (HRs and aHRs, respectively) with 95% confidence intervals (CIs) were estimated regarding the risk of LTSA and DP due to CMDs using Cox regression analyses.
Results
In cohort 2004, public sector employees had a higher relative risk for LTSA due to CMDs than private sector employees (aHR, (95%CI): 1.24, 1.16-1.34 and 1.18, 1.11-1.26 among non-manual and manual workers). These associations were similar in the later cohorts. Compared to cohort 2004, the rate of DP due to CMDs was considerably lower in the later cohorts leading to uncertainties in the risk estimates limiting the comparability for time period effects regarding the risk of DP due to CMDs across employment sectors and occupational classes.
Conclusions
Stricter regulation changes regarding the receipt of DP in Sweden, rather than other time period events, may have differentially affected the risk of work disability among young non-manual and manual employees working in the private and public sectors.
Key messages
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Affiliation(s)
- M Amin
- Department of Clinical Neuroscience, Karolinska Institutet , Stockholm, Sweden
| | - E Mittendorfer-Rutz
- Department of Clinical Neuroscience, Karolinska Institutet , Stockholm, Sweden
| | - E Björkenstam
- Department of Clinical Neuroscience, Karolinska Institutet , Stockholm, Sweden
| | - M Virtanen
- Department of Clinical Neuroscience, Karolinska Institutet , Stockholm, Sweden
- School of Educational Sciences and Psychology, University of Eastern Finland , Joensuu, Finland
| | - M Helgesson
- Department of Clinical Neuroscience, Karolinska Institutet , Stockholm, Sweden
| | - N Gustafsson
- Department of Clinical Neuroscience, Karolinska Institutet , Stockholm, Sweden
| | - S Rahman
- Department of Clinical Neuroscience, Karolinska Institutet , Stockholm, Sweden
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Rahman S, Das AK. A subtractive proteomics and immunoinformatics approach towards designing a potential multi-epitope vaccine against pathogenic Listeriamonocytogenes. Microb Pathog 2022; 172:105782. [PMID: 36150556 DOI: 10.1016/j.micpath.2022.105782] [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: 04/28/2022] [Revised: 08/04/2022] [Accepted: 09/11/2022] [Indexed: 11/29/2022]
Abstract
Listeria monocytogenes is the causative agent of listeriosis, which is dangerous for pregnant women, the elderly or individuals with a weakened immune system. Individuals with leukaemia, cancer, HIV/AIDS, kidney transplant and steroid therapy suffer from immunological damage are menaced. World Health Organization (WHO) reports that human listeriosis has a high mortality rate of 20-30% every year. To date, no vaccine is available to treat listeriosis. Thereby, it is high time to design novel vaccines against L. monocytogenes. Here, we present computational approaches to design an antigenic, stable and safe vaccine against the L. monocytogenes that could help to control the infections associated with the pathogen. Three vital pathogenic proteins of L. monocytogenes, such as Listeriolysin O (LLO), Phosphatidylinositol-specific phospholipase C (PI-PLC), and Actin polymerization protein (ActA), were selected using a subtractive proteomics approach to design the multi-epitope vaccine (MEV). A total of 5 Cytotoxic T-lymphocyte (CTL) and 9 Helper T-lymphocyte (HTL) epitopes were predicted from these selected proteins. To design the multi-epitope vaccine (MEV) from the selected proteins, CTL epitopes were joined with the AAY linker, and HTL epitopes were joined with the GPGPG linker. Additionally, a human β-defensin-3 (hBD-3) adjuvant was added to the N-terminal side of the final MEV construct to increase the immune response to the vaccine. The final MEV was predicted to be antigenic, non-allergen and non-toxic in nature. Physicochemical property analysis suggested that the MEV construct is stable and could be easily purified through the E. coli expression system. This in-silico study showed that MEV has a robust binding interaction with Toll-like receptor 2 (TLR2), a key player in the innate immune system. Current subtractive proteomics and immunoinformatics study provides a background for designing a suitable, safe and effective vaccine against pathogenic L. monocytogenes.
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Affiliation(s)
- Shakilur Rahman
- Department of Biotechnology, Indian Institute of Technology Kharagpur, Kharagpur, 721302, West Bengal, India
| | - Amit Kumar Das
- Department of Biotechnology, Indian Institute of Technology Kharagpur, Kharagpur, 721302, West Bengal, India.
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Shah R, Rahman S, Pywell M, Ibanez J. 107 A Rare Presentation of a Giant, Multi-Compartmental Lipoma of the Hand Causing Median Nerve Compression. Br J Surg 2022. [DOI: 10.1093/bjs/znac269.115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Abstract
Lipomas are the commonest benign tumour, made up exclusively of adipose tissue, and can arise anywhere in the body. However, giant lipomas of the hand, defined as greater than 5cm in diameter, are rare. They have the potential to invade and cause a multitude of symptoms due to the compression and proximity of underlying structures.
We describe a case of a 64-year-old woman who presents with a swelling of the left thenar eminence, associated with numbness and tingling in all fingers.
MRI and nerve conduction studies confirmed the diagnosis of a lipoma causing median nerve compression. The patient underwent elective surgical excision using a volar approach, with good postoperative recovery. The excised lesion, measuring 12x7x2.4cm, is the largest giant lipoma of the hand reported in literature, and the first to demonstrate invasion from the mid palmar space into both the dorsal sub-aponeurotic space and carpal tunnel.
Space occupying lesions, such as giant lipomas of the hand, are a rare but important secondary cause of compression neuropathies of the upper extremity and must be suspected when these neuropathies present with atypical symptomatology. Any patient presenting with a soft-tissue lesion of the hand demonstrating rapid growth, pain or large size must be thoroughly investigated to rule out malignancy. MRI forms an essential part of the workup in such cases due to its high diagnostic accuracy. Malignant transformation of giant lipomas of the hand is extremely rare, and such lesions can be removed by en bloc marginal resection with excellent postoperative results.
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Affiliation(s)
- R Shah
- Guys’ and St Thomas NHS foundation Trust , London , United Kingdom
| | - S Rahman
- Guys’ and St Thomas NHS Foundation Trust , London , United Kingdom
| | - M Pywell
- Guys’ and St Thomas NHS Foundation Trust , London , United Kingdom
| | - J Ibanez
- Guys’ and St Thomas NHS Foundation Trust , London , United Kingdom
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Karam M, Abul A, Kahlar N, Naik A, Tay J, Rahman S, Matteucci P. 294 Stem Cell Enriched Fat Grafts Versus Autologous Fat Grafts for Facial Reconstruction: A Systematic Review and Meta-Analysis. Br J Surg 2022. [DOI: 10.1093/bjs/znac269.301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Abstract
Aim
To compare the results of stem cell-enhanced fat grafting to autologous fat grafting for face reconstruction.
Method
A systematic review and meta-analysis were carried out in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) Guidelines, and an electronic search was carried out to identify all Randomised Controlled Trials (RCTs), case control studies, and cohort studies comparing the outcomes of stem cell-enrichment fat grafting versus routine fat grafting for facial reconstruction. The primary outcome measures were volume retention and infection rate. Secondary outcome measures included post-surgery patient satisfaction, redness and swelling, fat necrosis, cysts, and operation time. For the analysis, fixed and random effects modelling were utilised.
Results
Eight studies with a total of 275 participants were assessed. In terms of mean volume retention, there was a significant difference between the stem cell-enrichment fat grafting and routine grafting groups (standardised Mean Difference [MD] = 2.49, P 0.00001). However, there was no significant difference in infection rates between the two groups (OR = 0.36, P = 0.30). Except for the operation duration, which was shorter in the latter, the intervention group had similar results to the control group for all secondary outcomes.
Conclusions
When compared to conventional fat grafting, stem cell-enriched fat grafting is a better alternative for facial reconstruction surgery since it enhances mean volume retention and does not worsen patient satisfaction or surgical complications.
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Affiliation(s)
- M Karam
- Farwaniya Hospital , Kuwait City , Kuwait
| | - A Abul
- University of Leeds , Leeds , United Kingdom
| | - N Kahlar
- Southwest Birmingham Trust , Birmingham , United Kingdom
| | - A Naik
- James Cook University Hospital , Middlesbrough , United Kingdom
| | - J Tay
- Bradford Royal Infirmary , Bradford , United Kingdom
| | - S Rahman
- Pinderfields General Hospital , Wakefield , United Kingdom
| | - P Matteucci
- Hull royal infirmary , Hull , United Kingdom
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Singh BP, Kumari S, Nair A, Kumari S, Wabaidur SM, Avtar R, Rahman S. Temporary reduction in VOCs associated with health risk during and after COVID-19 in Maharashtra, India. J Atmos Chem 2022; 80:53-76. [PMID: 35992767 PMCID: PMC9382016 DOI: 10.1007/s10874-022-09440-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Accepted: 07/18/2022] [Indexed: 06/15/2023]
Abstract
UNLABELLED A novel coronavirus has affected almost all countries and impacted the economy, environment, and social life. The short-term impact on the environment and human health needs attention to correlate the Volatile organic compounds (VOCs) and health assessment for pre-, during, and post lockdowns. Therefore, the current study demonstrates VOC changes and their effect on air quality during the lockdown. The findings of result, the levels of the mean for total VOC concentrations were found to be 15.45 ± 21.07, 2.48 ± 1.61, 19.25 ± 28.91 µg/m3 for all monitoring stations for pre-, during, and post lockdown periods. The highest value of TVOCs was observed at Thane, considered an industrial region (petroleum refinery), and the lowest at Bandra, which was considered a residential region, respectively. The VOC levels drastically decreased by 52%, 89%, 80%, and 97% for benzene, toluene, ethylbenzene, and m-xylene, respectively, during the lockdown period compared to the previous year. In the present study, the T/B ratio was found lower in the lockdown period as compared to the pre-lockdown period. This can be attributed to the complete closure of non-traffic sources such as industries and factories during the lockdown. The Lifetime Cancer Risk values for all monitoring stations for benzene for pre-and-post lockdown periods were higher than the prescribed value, except during the lockdown period. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s10874-022-09440-5.
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Affiliation(s)
- Bhupendra Pratap Singh
- Delhi School of Climate Change and Sustainability (Institute of Eminence) & Department of Environmental Studies, Deshbadhu College, University of Delhi, New Delhi, India
| | - Saumya Kumari
- Delhi School of Climate Change and Sustainability (Institute of Eminence) & Department of Environmental Studies, Deshbadhu College, University of Delhi, New Delhi, India
| | - Arathi Nair
- Delhi School of Climate Change and Sustainability (Institute of Eminence) & Department of Environmental Studies, Deshbadhu College, University of Delhi, New Delhi, India
| | - Sweety Kumari
- Delhi School of Climate Change and Sustainability (Institute of Eminence) & Department of Environmental Studies, Deshbadhu College, University of Delhi, New Delhi, India
| | | | - Ram Avtar
- Faculty of Environmental Earth Science, Hokkaido University, Sapporo, 060-0810 Japan
| | - Shakilur Rahman
- Department of Medical Elementology and Toxicology, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi, India
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Breininger SP, Izadi F, Sharpe B, Secrier M, Gibson J, Walker R, Rahman S, Devonshire G, Lloyd M, Walters Z, Fitzgerald R, Rose-Zerilli M, Underwood T. O086 Genomic analysis of response to neoadjuvant chemotherapy in oesophageal adenocarcinoma. Br J Surg 2022. [DOI: 10.1093/bjs/znac242.086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Abstract
Introduction
Oesophageal adenocarcinoma (OAC) is the ninth most common cancer worldwide with a mortality of over 500,000 deaths yearly. Neoadjuvant chemotherapy (NAC) followed by surgery is the standard of care (SOC) for locally advanced OAC. Although almost all patients receive chemotherapy as SOC, fewer than 20% obtain a clinically meaningful response and benefit before surgery. The OAC genome is complex and heterogeneous between patients, and it is not yet understood whether specific mutational patterns result in chemotherapy sensitivity or resistance.
Methods
To identify associations between genomic events and response to NAC in OAC, a comparative genomic analysis was performed in 65 patients using whole-genome sequencing. We defined response to NAC using Mandard Tumour Regression Grade TRG), with responders classified as TRG1-2 (n=27) and non-responders classified as TRG4- 5 (n=38).
Results
We report a higher non-synonymous mutation burden in responders (median 2.08/Mb vs 1.70/Mb, P=0.036) and elevated copy number variation (CNV) in non-responders (282 vs 136/patient, P<0.001). We identified CNVs unique to each group, with cell cycle (CDKN2A, CCND1), c-Myc (MYC), RTK/PIK3 (KRAS, EGFR) and gastrointestinal differentiation (GATA6) pathway genes being specifically altered in non-responders. Of particular interest was the identification of the Neuron Navigator-3 (NAV3), a known tumour suppressor downstream of EGFR, which was mutated exclusively in 22% of non-responders.
Conclusion
We characterise genetic features and mutations that are uniquely associated with response to NAC. We envision a treatment pipeline that incorporates driver mutation profiling in OAC, combining response prediction with targeted therapies enhancing response to NAC and improving survival outcomes.
Take-home message
Developing a method of determining an OAC patient's response to neoadjuvant chemotherapy before treatment is administered is desperately needed and will improve patient outcome and quality of life. We identified a number of aberrations in the genome that were unique to non-responders to chemotherapy compared to responders, particularly a known tumour suppressor gene namely Neuron Navigator-3, suggesting that these events may contribute to chemoresistance in these patients. Our work characterises pre-existing genomic alterations that have potential as biomarkers for resistance or sensitivity to NAC.
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Affiliation(s)
- SP Breininger
- School of Cancer Sciences, Cancer Research UK Centre, Faculty of Medicine, University of Southampton, Southampton General Hospital , Southampton
| | - F Izadi
- School of Cancer Sciences, Cancer Research UK Centre, Faculty of Medicine, University of Southampton, Southampton General Hospital , Southampton
- Centre for NanoHealth, Swansea University Medical School , Singleton Campus, Swansea
| | - B Sharpe
- School of Cancer Sciences, Cancer Research UK Centre, Faculty of Medicine, University of Southampton, Southampton General Hospital , Southampton
- Institute for Life Sciences, University of Southampton
| | - M Secrier
- UCL Genetics Institute, Division of Biosciences, University College London
| | - J Gibson
- School of Cancer Sciences, Cancer Research UK Centre, Faculty of Medicine, University of Southampton, Southampton General Hospital , Southampton
- Institute for Life Sciences, University of Southampton
| | - R Walker
- School of Cancer Sciences, Cancer Research UK Centre, Faculty of Medicine, University of Southampton, Southampton General Hospital , Southampton
| | - S Rahman
- School of Cancer Sciences, Cancer Research UK Centre, Faculty of Medicine, University of Southampton, Southampton General Hospital , Southampton
| | - G Devonshire
- Cancer Research UK Cambridge Institute, University of Cambridge
| | - M Lloyd
- School of Cancer Sciences, Cancer Research UK Centre, Faculty of Medicine, University of Southampton, Southampton General Hospital , Southampton
| | - Z Walters
- School of Cancer Sciences, Cancer Research UK Centre, Faculty of Medicine, University of Southampton, Southampton General Hospital , Southampton
- Institute for Life Sciences, University of Southampton
| | - R Fitzgerald
- MRC Cancer Unit, Hutchison/MRC Research Centre, University of Cambridge
| | - M Rose-Zerilli
- School of Cancer Sciences, Cancer Research UK Centre, Faculty of Medicine, University of Southampton, Southampton General Hospital , Southampton
- Institute for Life Sciences, University of Southampton
| | - T Underwood
- School of Cancer Sciences, Cancer Research UK Centre, Faculty of Medicine, University of Southampton, Southampton General Hospital , Southampton
- Institute for Life Sciences, University of Southampton
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Adhikari D, Albataineh H, Androic D, Aniol KA, Armstrong DS, Averett T, Ayerbe Gayoso C, Barcus SK, Bellini V, Beminiwattha RS, Benesch JF, Bhatt H, Bhatta Pathak D, Bhetuwal D, Blaikie B, Boyd J, Campagna Q, Camsonne A, Cates GD, Chen Y, Clarke C, Cornejo JC, Covrig Dusa S, Dalton MM, Datta P, Deshpande A, Dutta D, Feldman C, Fuchey E, Gal C, Gaskell D, Gautam T, Gericke M, Ghosh C, Halilovic I, Hansen JO, Hassan O, Hauenstein F, Henry W, Horowitz CJ, Jantzi C, Jian S, Johnston S, Jones DC, Kakkar S, Katugampola S, Keppel C, King PM, King DE, Kumar KS, Kutz T, Lashley-Colthirst N, Leverick G, Liu H, Liyanage N, Mammei J, Mammei R, McCaughan M, McNulty D, Meekins D, Metts C, Michaels R, Mihovilovic M, Mondal MM, Napolitano J, Narayan A, Nikolaev D, Owen V, Palatchi C, Pan J, Pandey B, Park S, Paschke KD, Petrusky M, Pitt ML, Premathilake S, Quinn B, Radloff R, Rahman S, Rashad MNH, Rathnayake A, Reed BT, Reimer PE, Richards R, Riordan S, Roblin YR, Seeds S, Shahinyan A, Souder P, Thiel M, Tian Y, Urciuoli GM, Wertz EW, Wojtsekhowski B, Yale B, Ye T, Yoon A, Xiong W, Zec A, Zhang W, Zhang J, Zheng X. Precision Determination of the Neutral Weak Form Factor of ^{48}Ca. Phys Rev Lett 2022; 129:042501. [PMID: 35939025 DOI: 10.1103/physrevlett.129.042501] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 06/15/2022] [Accepted: 06/16/2022] [Indexed: 06/15/2023]
Abstract
We report a precise measurement of the parity-violating (PV) asymmetry A_{PV} in the elastic scattering of longitudinally polarized electrons from ^{48}Ca. We measure A_{PV}=2668±106(stat)±40(syst) parts per billion, leading to an extraction of the neutral weak form factor F_{W}(q=0.8733 fm^{-1})=0.1304±0.0052(stat)±0.0020(syst) and the charge minus the weak form factor F_{ch}-F_{W}=0.0277±0.0055. The resulting neutron skin thickness R_{n}-R_{p}=0.121±0.026(exp)±0.024(model) fm is relatively thin yet consistent with many model calculations. The combined CREX and PREX results will have implications for future energy density functional calculations and on the density dependence of the symmetry energy of nuclear matter.
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Affiliation(s)
- D Adhikari
- Idaho State University, Pocatello, Idaho 83209, USA
| | - H Albataineh
- Texas A & M University-Kingsville, Kingsville, Texas 78363, USA
| | - D Androic
- University of Zagreb, Faculty of Science, Zagreb, HR 10002, Croatia
| | - K A Aniol
- California State University, Los Angeles, Los Angeles, California 90032, USA
| | | | - T Averett
- William and Mary, Williamsburg, Virginia 23185, USA
| | | | - S K Barcus
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - V Bellini
- Istituto Nazionale di Fisica Nucleare, Sezione di Catania, 95123 Catania, Italy
| | | | - J F Benesch
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - H Bhatt
- Mississippi State University, Mississippi State, Mississippi 39762, USA
| | | | - D Bhetuwal
- Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - B Blaikie
- University of Manitoba, Winnipeg, Manitoba R3T2N2, Canada
| | - J Boyd
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - Q Campagna
- William and Mary, Williamsburg, Virginia 23185, USA
| | - A Camsonne
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - G D Cates
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - Y Chen
- Louisiana Tech University, Ruston, Louisiana 71272, USA
| | - C Clarke
- Stony Brook, State University of New York, Stony Brook, New York 11794, USA
| | - J C Cornejo
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - S Covrig Dusa
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - M M Dalton
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - P Datta
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - A Deshpande
- Stony Brook, State University of New York, Stony Brook, New York 11794, USA
- Center for Frontiers in Nuclear Science, Stony Brook, New York 11794, USA
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - D Dutta
- Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - C Feldman
- Stony Brook, State University of New York, Stony Brook, New York 11794, USA
- Institute for Advanced Computational Science, Stony Brook, New York 11794, USA
| | - E Fuchey
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - C Gal
- Mississippi State University, Mississippi State, Mississippi 39762, USA
- University of Virginia, Charlottesville, Virginia 22904, USA
- Stony Brook, State University of New York, Stony Brook, New York 11794, USA
- Center for Frontiers in Nuclear Science, Stony Brook, New York 11794, USA
| | - D Gaskell
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - T Gautam
- Hampton University, Hampton, Virginia 23668, USA
| | - M Gericke
- University of Manitoba, Winnipeg, Manitoba R3T2N2, Canada
| | - C Ghosh
- Stony Brook, State University of New York, Stony Brook, New York 11794, USA
- University of Massachusetts Amherst, Amherst, Massachusetts 01003, USA
| | - I Halilovic
- University of Manitoba, Winnipeg, Manitoba R3T2N2, Canada
| | - J-O Hansen
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - O Hassan
- University of Manitoba, Winnipeg, Manitoba R3T2N2, Canada
| | - F Hauenstein
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - W Henry
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - C J Horowitz
- Indiana University, Bloomington, Indiana 47405, USA
| | - C Jantzi
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - S Jian
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - S Johnston
- University of Massachusetts Amherst, Amherst, Massachusetts 01003, USA
| | - D C Jones
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - S Kakkar
- University of Manitoba, Winnipeg, Manitoba R3T2N2, Canada
| | - S Katugampola
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - C Keppel
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - P M King
- Ohio University, Athens, Ohio 45701, USA
| | - D E King
- Temple University, Philadelphia, Pennsylvania 19122, USA
- Syracuse University, Syracuse, New York 13244, USA
| | - K S Kumar
- University of Massachusetts Amherst, Amherst, Massachusetts 01003, USA
| | - T Kutz
- Stony Brook, State University of New York, Stony Brook, New York 11794, USA
| | | | - G Leverick
- University of Manitoba, Winnipeg, Manitoba R3T2N2, Canada
| | - H Liu
- University of Massachusetts Amherst, Amherst, Massachusetts 01003, USA
| | - N Liyanage
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - J Mammei
- University of Manitoba, Winnipeg, Manitoba R3T2N2, Canada
| | - R Mammei
- University of Winnipeg, Winnipeg, Manitoba R3B2E9, Canada
| | - M McCaughan
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - D McNulty
- Idaho State University, Pocatello, Idaho 83209, USA
| | - D Meekins
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - C Metts
- William and Mary, Williamsburg, Virginia 23185, USA
| | - R Michaels
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - M Mihovilovic
- Jožef Stefan Institute, SI-1000 Ljubljana, Slovenia
- Faculty of Mathematics and Physics, University of Ljubljana, SI-1000 Ljubljana, Slovenia
| | - M M Mondal
- Stony Brook, State University of New York, Stony Brook, New York 11794, USA
- Center for Frontiers in Nuclear Science, Stony Brook, New York 11794, USA
| | - J Napolitano
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - A Narayan
- Veer Kunwar Singh University, Ara, Bihar 802301, India
| | - D Nikolaev
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - V Owen
- William and Mary, Williamsburg, Virginia 23185, USA
| | - C Palatchi
- University of Virginia, Charlottesville, Virginia 22904, USA
- Center for Frontiers in Nuclear Science, Stony Brook, New York 11794, USA
| | - J Pan
- University of Manitoba, Winnipeg, Manitoba R3T2N2, Canada
| | - B Pandey
- Hampton University, Hampton, Virginia 23668, USA
| | - S Park
- Mississippi State University, Mississippi State, Mississippi 39762, USA
- Stony Brook, State University of New York, Stony Brook, New York 11794, USA
| | - K D Paschke
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - M Petrusky
- Stony Brook, State University of New York, Stony Brook, New York 11794, USA
| | - M L Pitt
- Virginia Tech, Blacksburg, Virginia 24061, USA
| | - S Premathilake
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - B Quinn
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - R Radloff
- Ohio University, Athens, Ohio 45701, USA
| | - S Rahman
- University of Manitoba, Winnipeg, Manitoba R3T2N2, Canada
| | - M N H Rashad
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - A Rathnayake
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - B T Reed
- Indiana University, Bloomington, Indiana 47405, USA
| | - P E Reimer
- Physics Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - R Richards
- Stony Brook, State University of New York, Stony Brook, New York 11794, USA
| | - S Riordan
- Physics Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - Y R Roblin
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S Seeds
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - A Shahinyan
- A. I. Alikhanyan National Science Laboratory (Yerevan Physics Institute), Yerevan 0036, Armenia
| | - P Souder
- Syracuse University, Syracuse, New York 13244, USA
| | - M Thiel
- Institut für Kernphysik, Johannes Gutenberg-Universität, Mainz 55122, Germany
| | - Y Tian
- Syracuse University, Syracuse, New York 13244, USA
| | | | - E W Wertz
- William and Mary, Williamsburg, Virginia 23185, USA
| | - B Wojtsekhowski
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - B Yale
- William and Mary, Williamsburg, Virginia 23185, USA
| | - T Ye
- Stony Brook, State University of New York, Stony Brook, New York 11794, USA
| | - A Yoon
- Christopher Newport University, Newport News, Virginia 23606, USA
| | - W Xiong
- Syracuse University, Syracuse, New York 13244, USA
- Shandong University, Qingdao, Shandong 266237, China
| | - A Zec
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - W Zhang
- Stony Brook, State University of New York, Stony Brook, New York 11794, USA
| | - J Zhang
- Stony Brook, State University of New York, Stony Brook, New York 11794, USA
- Center for Frontiers in Nuclear Science, Stony Brook, New York 11794, USA
- Shandong University, Qingdao, Shandong 266237, China
| | - X Zheng
- University of Virginia, Charlottesville, Virginia 22904, USA
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34
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Sultana MN, Rahman S, Ara R. Comparison of the Levels of Blood Homocysteine between Women with Unexplained Infertility and Normal Fertility. Mymensingh Med J 2022; 31:683-689. [PMID: 35780351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Infertility is a common gynaecological problem which remains unexplained in 10-30% cases. This study explores the difference of blood levels of homocysteine between women with unexplained infertility and normal fertility. This was a cross-sectional study conducted from January 2015 to December 2015 in the Department of Gynaecology and Obstetrics of a tertiary care hospital of Bangladesh drawing 30 women with normal fertility as controls and 30 with unexplained infertility as cases. The subjects in both groups were well matched in terms of age (p value 0.875) as well as height, weight and BMI (p value 0.418). There was no statistically significant difference between the two groups in socio-economic status and educational levels. The two groups had similar duration of marriage (7.88±3.5 years in controls vs. 8.15±3.88 years in cases) and coital frequency (3.63±0.76 week in controls vs. 3.33±0.55 week in cases). Based on the institutional cut-off value for normal serum fasting homocysteine level of 15 micromoles/L, the frequency of hyper-homocysteinemia was significantly higher (40%) in unexplained infertility group compared to control group (16.7%, p value 0.044). Fasting serum homocysteine levels were significantly higher in the unexplained infertility group compared to the normal fertility group (13.46±5.05 vs. 9.87±4.84 micromoles/L, p value 0.007). Serum fasting homocysteine levels and frequency of hyper-homocysteinemia were increased in women with unexplained infertility compared to age and BMI matched women with normal fertility.
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Affiliation(s)
- M N Sultana
- Dr Mossammat Nigar Sultana, Assistant Professor, Department of Gynaecology and Obstetrics, Mugda Medical College and Hospital, Dhaka, Bangladesh; E-mail;
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Moawad G, Rahman S, Saridogan E. The case for standardising robotic curriculum globally. Facts Views Vis Obgyn 2022; 14:99-102. [DOI: 10.52054/fvvo.14.2.022] [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: 11/05/2022] Open
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Georges F, Rashad MNH, Stefanko A, Dlamini M, Karki B, Ali SF, Lin PJ, Ko HS, Israel N, Adikaram D, Ahmed Z, Albataineh H, Aljawrneh B, Allada K, Allison S, Alsalmi S, Androic D, Aniol K, Annand J, Atac H, Averett T, Ayerbe Gayoso C, Bai X, Bane J, Barcus S, Bartlett K, Bellini V, Beminiwattha R, Bericic J, Biswas D, Brash E, Bulumulla D, Campbell J, Camsonne A, Carmignotto M, Castellano J, Chen C, Chen JP, Chetry T, Christy ME, Cisbani E, Clary B, Cohen E, Compton N, Cornejo JC, Covrig Dusa S, Crowe B, Danagoulian S, Danley T, De Persio F, Deconinck W, Defurne M, Desnault C, Di D, Duer M, Duran B, Ent R, Fanelli C, Franklin G, Fuchey E, Gal C, Gaskell D, Gautam T, Glamazdin O, Gnanvo K, Gray VM, Gu C, Hague T, Hamad G, Hamilton D, Hamilton K, Hansen O, Hauenstein F, Henry W, Higinbotham DW, Holmstrom T, Horn T, Huang Y, Huber GM, Hyde CE, Ibrahim H, Jen CM, Jin K, Jones M, Kabir A, Keppel C, Khachatryan V, King PM, Li S, Li WB, Liu J, Liu H, Liyanage A, Magee J, Malace S, Mammei J, Markowitz P, McClellan E, Mazouz M, Meddi F, Meekins D, Mesik K, Michaels R, Mkrtchyan A, Montgomery R, Muñoz Camacho C, Myers LS, Nadel-Turonski P, Nazeer SJ, Nelyubin V, Nguyen D, Nuruzzaman N, Nycz M, Obretch OF, Ou L, Palatchi C, Pandey B, Park S, Park K, Peng C, Pomatsalyuk R, Pooser E, Puckett AJR, Punjabi V, Quinn B, Rahman S, Reimer PE, Roche J, Sapkota I, Sarty A, Sawatzky B, Saylor NH, Schmookler B, Shabestari MH, Shahinyan A, Sirca S, Smith GR, Sooriyaarachchilage S, Sparveris N, Spies R, Su T, Subedi A, Sulkosky V, Sun A, Thorne L, Tian Y, Ton N, Tortorici F, Trotta R, Urciuoli GM, Voutier E, Waidyawansa B, Wang Y, Wojtsekhowski B, Wood S, Yan X, Ye L, Ye Z, Yero C, Zhang J, Zhao Y, Zhu P. Deeply Virtual Compton Scattering Cross Section at High Bjorken x_{B}. Phys Rev Lett 2022; 128:252002. [PMID: 35802440 DOI: 10.1103/physrevlett.128.252002] [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] [Subscribe] [Scholar Register] [Received: 12/04/2021] [Revised: 03/28/2022] [Accepted: 04/18/2022] [Indexed: 06/15/2023]
Abstract
We report high-precision measurements of the deeply virtual Compton scattering (DVCS) cross section at high values of the Bjorken variable x_{B}. DVCS is sensitive to the generalized parton distributions of the nucleon, which provide a three-dimensional description of its internal constituents. Using the exact analytic expression of the DVCS cross section for all possible polarization states of the initial and final electron and nucleon, and final state photon, we present the first experimental extraction of all four helicity-conserving Compton form factors (CFFs) of the nucleon as a function of x_{B}, while systematically including helicity flip amplitudes. In particular, the high accuracy of the present data demonstrates sensitivity to some very poorly known CFFs.
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Affiliation(s)
- F Georges
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - M N H Rashad
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - A Stefanko
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - M Dlamini
- Ohio University, Athens, Ohio 45701, USA
| | - B Karki
- Ohio University, Athens, Ohio 45701, USA
| | - S F Ali
- Catholic University of America, Washington, DC 20064, USA
| | - P-J Lin
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - H-S Ko
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
- Seoul National University, 1 Gwanak-ro, Gwanak-gu, 08826 Seoul, Korea
| | - N Israel
- Ohio University, Athens, Ohio 45701, USA
| | - D Adikaram
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - Z Ahmed
- University of Regina, Regina, Saskatchewan, S4S 0A2 Canada
| | - H Albataineh
- Texas A&M University-Kingsville, Kingsville, Texas 78363, USA
| | - B Aljawrneh
- North Carolina Agricultural and Technical State University, Greensboro, North Carolina 27411, USA
| | - K Allada
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - S Allison
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - S Alsalmi
- Kent State University, Kent, Ohio 44240, USA
| | - D Androic
- University of Zagreb, Trg Republike Hrvatske 14, 10000 Zagreb, Croatia
| | - K Aniol
- California State University, Los Angeles, Los Angeles, California 90032, USA
| | - J Annand
- SUPA School of Physics and Astronomy, University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - H Atac
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - T Averett
- The College of William and Mary, Williamsburg, Virginia 23185, USA
| | - C Ayerbe Gayoso
- The College of William and Mary, Williamsburg, Virginia 23185, USA
| | - X Bai
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - J Bane
- University of Tennessee, Knoxville, Tennessee 37996, USA
| | - S Barcus
- The College of William and Mary, Williamsburg, Virginia 23185, USA
| | - K Bartlett
- The College of William and Mary, Williamsburg, Virginia 23185, USA
| | - V Bellini
- Istituto Nazionale di Fisica Nucleare, Dipartimento di Fisica delle Università degli di Catania, I-95123 Catania, Italy
| | | | - J Bericic
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - D Biswas
- Hampton University, Hampton, Virginia 23669, USA
| | - E Brash
- Christopher Newport University, Newport News, Virginia 23606, USA
| | - D Bulumulla
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - J Campbell
- Dalhousie University, Nova Scotia, NS B3H 4R2, Canada
| | - A Camsonne
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - M Carmignotto
- Catholic University of America, Washington, DC 20064, USA
| | - J Castellano
- Florida International University, Miami, Florida 33199, USA
| | - C Chen
- Hampton University, Hampton, Virginia 23669, USA
| | - J-P Chen
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - T Chetry
- Ohio University, Athens, Ohio 45701, USA
| | - M E Christy
- Hampton University, Hampton, Virginia 23669, USA
| | - E Cisbani
- Istituto Nazionale di Fisica Nucleare-Sezione di Roma, Piazzale Aldo Moro, 2-00185 Roma, Italy
| | - B Clary
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - E Cohen
- Tel Aviv University, Tel Aviv-Yafo 6997801, Israel
| | - N Compton
- Ohio University, Athens, Ohio 45701, USA
| | - J C Cornejo
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
- The College of William and Mary, Williamsburg, Virginia 23185, USA
| | - S Covrig Dusa
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - B Crowe
- North Carolina Central University, Durham, North Carolina 27707, USA
| | - S Danagoulian
- North Carolina Agricultural and Technical State University, Greensboro, North Carolina 27411, USA
| | - T Danley
- Ohio University, Athens, Ohio 45701, USA
| | - F De Persio
- Istituto Nazionale di Fisica Nucleare-Sezione di Roma, Piazzale Aldo Moro, 2-00185 Roma, Italy
| | - W Deconinck
- The College of William and Mary, Williamsburg, Virginia 23185, USA
| | - M Defurne
- CEA Saclay, 91191 Gif-sur-Yvette, France
| | - C Desnault
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - D Di
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - M Duer
- Tel Aviv University, Tel Aviv-Yafo 6997801, Israel
| | - B Duran
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - R Ent
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - C Fanelli
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - G Franklin
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - E Fuchey
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - C Gal
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - D Gaskell
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - T Gautam
- Hampton University, Hampton, Virginia 23669, USA
| | - O Glamazdin
- Kharkov Institute of Physics and Technology, Kharkov 61108, Ukraine
| | - K Gnanvo
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - V M Gray
- The College of William and Mary, Williamsburg, Virginia 23185, USA
| | - C Gu
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - T Hague
- Kent State University, Kent, Ohio 44240, USA
| | - G Hamad
- Ohio University, Athens, Ohio 45701, USA
| | - D Hamilton
- SUPA School of Physics and Astronomy, University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - K Hamilton
- SUPA School of Physics and Astronomy, University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - O Hansen
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - F Hauenstein
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - W Henry
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - D W Higinbotham
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - T Holmstrom
- Longwood University, Farmville, Virginia 23901, USA
| | - T Horn
- Catholic University of America, Washington, DC 20064, USA
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - Y Huang
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - G M Huber
- University of Regina, Regina, Saskatchewan, S4S 0A2 Canada
| | - C E Hyde
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - H Ibrahim
- Cairo University, Cairo 121613, Egypt
| | - C-M Jen
- Virginia Polytechnic Institute & State University, Blacksburg, Virginia 234061, USA
| | - K Jin
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - M Jones
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - A Kabir
- Kent State University, Kent, Ohio 44240, USA
| | - C Keppel
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - V Khachatryan
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
- Stony Brook, State University of New York, New York 11794, USA
- Cornell University, Ithaca, New York 14853, USA
| | - P M King
- Ohio University, Athens, Ohio 45701, USA
| | - S Li
- University of New Hampshire, Durham, New Hampshire 03824, USA
| | - W B Li
- University of Regina, Regina, Saskatchewan, S4S 0A2 Canada
| | - J Liu
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - H Liu
- Columbia University, New York, New York 10027, USA
| | - A Liyanage
- Hampton University, Hampton, Virginia 23669, USA
| | - J Magee
- The College of William and Mary, Williamsburg, Virginia 23185, USA
| | - S Malace
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - J Mammei
- University of Manitoba, Winnipeg, MB R3T 2N2, Canada
| | - P Markowitz
- Florida International University, Miami, Florida 33199, USA
| | - E McClellan
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - M Mazouz
- Faculté des Sciences de Monastir, Monastir 5019, Tunisia
| | - F Meddi
- Istituto Nazionale di Fisica Nucleare-Sezione di Roma, Piazzale Aldo Moro, 2-00185 Roma, Italy
| | - D Meekins
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - K Mesik
- Rutgers University, New Brunswick, New Jersey 08854, USA
| | - R Michaels
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - A Mkrtchyan
- Catholic University of America, Washington, DC 20064, USA
| | - R Montgomery
- SUPA School of Physics and Astronomy, University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - C Muñoz Camacho
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - L S Myers
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - P Nadel-Turonski
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S J Nazeer
- Hampton University, Hampton, Virginia 23669, USA
| | - V Nelyubin
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - D Nguyen
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - N Nuruzzaman
- Hampton University, Hampton, Virginia 23669, USA
| | - M Nycz
- Kent State University, Kent, Ohio 44240, USA
| | - O F Obretch
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - L Ou
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - C Palatchi
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - B Pandey
- Hampton University, Hampton, Virginia 23669, USA
| | - S Park
- Stony Brook, State University of New York, New York 11794, USA
| | - K Park
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - C Peng
- Duke University, Durham, North Carolina 27708, USA
| | - R Pomatsalyuk
- Kharkov Institute of Physics and Technology, Kharkov 61108, Ukraine
| | - E Pooser
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - A J R Puckett
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - V Punjabi
- Norfolk State University, Norfolk, Virginia 23504, USA
| | - B Quinn
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - S Rahman
- University of Manitoba, Winnipeg, MB R3T 2N2, Canada
| | - P E Reimer
- Physics Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - J Roche
- Ohio University, Athens, Ohio 45701, USA
| | - I Sapkota
- Catholic University of America, Washington, DC 20064, USA
| | - A Sarty
- Saint Mary's University, Halifax, Nova Scotia B3H 3C3, Canada
| | - B Sawatzky
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - N H Saylor
- Rensselaer Polytechnic Institute, Troy, New York 12180, USA
| | - B Schmookler
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - M H Shabestari
- Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - A Shahinyan
- AANL, 2 Alikhanian Brothers Street, 0036 Yerevan, Armenia
| | - S Sirca
- Faculty of Mathematics and Physics, University of Ljubljana, 1000 Ljubljana, Slovenia
| | - G R Smith
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | | | - N Sparveris
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - R Spies
- University of Manitoba, Winnipeg, MB R3T 2N2, Canada
| | - T Su
- Kent State University, Kent, Ohio 44240, USA
| | - A Subedi
- Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - V Sulkosky
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - A Sun
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - L Thorne
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - Y Tian
- Shandong University, Jinan 250100, China
| | - N Ton
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - F Tortorici
- Istituto Nazionale di Fisica Nucleare, Dipartimento di Fisica delle Università degli di Catania, I-95123 Catania, Italy
| | - R Trotta
- Duquesne University, 600 Forbes Avenue, Pittsburgh, Pennsylvania 15282, USA
| | - G M Urciuoli
- Istituto Nazionale di Fisica Nucleare-Sezione di Roma, Piazzale Aldo Moro, 2-00185 Roma, Italy
| | - E Voutier
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - B Waidyawansa
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - Y Wang
- The College of William and Mary, Williamsburg, Virginia 23185, USA
| | - B Wojtsekhowski
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S Wood
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - X Yan
- Huangshan University, Tunxi, Daizhen Road 245041, China
| | - L Ye
- Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - Z Ye
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - C Yero
- Florida International University, Miami, Florida 33199, USA
| | - J Zhang
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - Y Zhao
- Stony Brook, State University of New York, New York 11794, USA
| | - P Zhu
- University of Science and Technology of China, Hefei, Anhui 230026, China
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Obiechina N, Nandi A, Mubin M, Khan R, Chan R, Pathmanathan K, Titheridge L, Tse N, Kachala P, Rahman S, Mukherjee B. 975 RELATIONSHIP BETWEEN HAND GRIP STRENGTH (HGS) AND 10 YEAR PROBABILITY OF MAJOR OSTEOPOROTIC FRACTURES IN OLDER. Age Ageing 2022. [DOI: 10.1093/ageing/afac126.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Introduction
HGS has been shown to be associated with adverse outcomes in a wide range of conditions. It has also been found to be associated with bone mineral density and is inversely associated with risk of osteoporotic fractures. The aim of this study was to determine the association between HGS and 10 year probability of sustaining a major osteoporotic fractures in older inpatient and to evaluate the effect of gender on this association.
Method
This was a cross-sectional, observational analysis of older patients admitted into hospital between September and November 2021. HGS was measured in these patients using the JAMAR hydraulic hand held dynamometer. The Southampton protocol was used. The FRAX UK tool (without BMD) was used to calculate 10 year probability of major osteoporotic fractures. Patients were included if they were 60 years and above. Younger patients were excluded as were stroke patients. Patients with incomplete data were excluded from analysis. The SPSS 27 package was used for statistical analysis. Baseline characteristics were calculated using descriptive statistics. Pearson’s correlation coefficient and linear regression were used to calculate correlation.
Results
104 patients were analysed—41 males and 63 females. Mean age was 83 years (SD 8.2). Grip strength was inversely correlated with FRAX UK in predicting 10 year probability of major osteoporotic fractures in all patients, male patients and female patients (r = −0.452; p < 0.001, r = −0.351; p = 0.02 and r = −0.271; p = 0.03 respectively).
Conclusion
Grip strength is negatively associated with increased probability of major osteoporotic fractures in older inpatients. Reference(s) Ma Y, Fu L, Jia L, et al. Muscle strength rather than muscle mass is associated with osteoporosis in older Chinese adults. J Formos Med Assoc. 2018;117(2):101–108. doi:10.1016/j.jfma.2017.03.004
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Affiliation(s)
- N Obiechina
- Department of Elderly Care Medicine; University Hospitals of Derby & Burton NHS Foundation Trust
| | - A Nandi
- Department of Elderly Care Medicine; University Hospitals of Derby & Burton NHS Foundation Trust
| | - M Mubin
- Department of Elderly Care Medicine; University Hospitals of Derby & Burton NHS Foundation Trust
| | - R Khan
- Department of Elderly Care Medicine; University Hospitals of Derby & Burton NHS Foundation Trust
| | - R Chan
- Department of Elderly Care Medicine; University Hospitals of Derby & Burton NHS Foundation Trust
| | - K Pathmanathan
- Department of Elderly Care Medicine; University Hospitals of Derby & Burton NHS Foundation Trust
| | - L Titheridge
- Department of Elderly Care Medicine; University Hospitals of Derby & Burton NHS Foundation Trust
| | - N Tse
- Department of Elderly Care Medicine; University Hospitals of Derby & Burton NHS Foundation Trust
| | - P Kachala
- Department of Elderly Care Medicine; University Hospitals of Derby & Burton NHS Foundation Trust
| | - S Rahman
- Department of Elderly Care Medicine; University Hospitals of Derby & Burton NHS Foundation Trust
| | - B Mukherjee
- Department of Elderly Care Medicine; University Hospitals of Derby & Burton NHS Foundation Trust
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Rahman S, Powell T, Staib L, Ayyagari R. Abstract No. 71 Long-term voiding success after prostatic artery embolization with 100-300μm particles for urinary retention: comparing results in gland volumes of ≤80mL versus >80mL. J Vasc Interv Radiol 2022. [DOI: 10.1016/j.jvir.2022.03.152] [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: 11/16/2022] Open
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Rahman S, Rosand B, Chheang S. Abstract No. 252 Utilization of a natural language processing algorithm and deep learning classifier for current procedural terminology coding in interventional radiology: a proof-of-concept model. J Vasc Interv Radiol 2022. [DOI: 10.1016/j.jvir.2022.03.333] [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] Open
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Rahman S, Powell T, Staib L, Ayyagari R. Abstract No. 66 Quantification of embolic particle deposition and gland volume reduction after prostatic artery embolization with 100-300μm particles: comparing results in gland volumes of ≤80mL versus >80mL. J Vasc Interv Radiol 2022. [DOI: 10.1016/j.jvir.2022.03.147] [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] Open
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Rahman S, Powell T, Staib L, Ayyagari R. Abstract No. 69 Stratified voiding and storage domain symptom score improvements after prostatic artery embolization with 100-300μm particles: comparing results in gland volumes of ≤80mL versus >80mL. J Vasc Interv Radiol 2022. [DOI: 10.1016/j.jvir.2022.03.150] [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: 11/25/2022] Open
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Rahman S, Powell T, Staib L, Ayyagari R. Abstract No. 104 Long-term lower urinary tract symptom improvements after prostatic artery embolization with 100-300μm particles: comparing results in gland volumes of ≤80mL versus >80mL. J Vasc Interv Radiol 2022. [DOI: 10.1016/j.jvir.2022.03.185] [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: 11/29/2022] Open
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Rahman S, Rajak K, Mishra S, Das AK. Identification of potential inhibitors against FemX of Staphylococcus aureus: A hierarchial in-silico drug repurposing approach. J Mol Graph Model 2022; 115:108215. [DOI: 10.1016/j.jmgm.2022.108215] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 05/11/2022] [Accepted: 05/12/2022] [Indexed: 11/29/2022]
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Adhikari D, Albataineh H, Androic D, Aniol K, Armstrong DS, Averett T, Ayerbe Gayoso C, Barcus S, Bellini V, Beminiwattha RS, Benesch JF, Bhatt H, Bhatta Pathak D, Bhetuwal D, Blaikie B, Boyd J, Campagna Q, Camsonne A, Cates GD, Chen Y, Clarke C, Cornejo JC, Covrig Dusa S, Dalton MM, Datta P, Deshpande A, Dutta D, Feldman C, Fuchey E, Gal C, Gaskell D, Gautam T, Gericke M, Ghosh C, Halilovic I, Hansen JO, Hauenstein F, Henry W, Horowitz CJ, Jantzi C, Jian S, Johnston S, Jones DC, Karki B, Kakkar S, Katugampola S, Keppel CE, King PM, King DE, Knauss M, Kumar KS, Kutz T, Lashley-Colthirst N, Leverick G, Liu H, Liyange N, Malace S, Mammei J, Mammei R, McCaughan M, McNulty D, Meekins D, Metts C, Michaels R, Mihovilovic M, Mondal MM, Napolitano J, Nikolaev D, Rashad MNH, Owen V, Palatchi C, Pan J, Pandey B, Park S, Paschke KD, Petrusky M, Pitt ML, Premathilake S, Puckett AJR, Quinn B, Radloff R, Rahman S, Rathnayake A, Reed BT, Reimer PE, Richards R, Riordan S, Roblin Y, Seeds S, Shahinyan A, Souder PA, Tang L, Thiel M, Tian Y, Urciuoli GM, Wertz EW, Wojtsekhowski B, Xiong W, Yale B, Ye T, Zec A, Zhang W, Zhang J, Zheng X. New Measurements of the Beam-Normal Single Spin Asymmetry in Elastic Electron Scattering over a Range of Spin-0 Nuclei. Phys Rev Lett 2022; 128:142501. [PMID: 35476486 DOI: 10.1103/physrevlett.128.142501] [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: 11/09/2021] [Revised: 01/31/2022] [Accepted: 02/04/2022] [Indexed: 06/14/2023]
Abstract
We report precision determinations of the beam-normal single spin asymmetries (A_{n}) in the elastic scattering of 0.95 and 2.18 GeV electrons off ^{12}C, ^{40}Ca, ^{48}Ca, and ^{208}Pb at very forward angles where the most detailed theoretical calculations have been performed. The first measurements of A_{n} for ^{40}Ca and ^{48}Ca are found to be similar to that of ^{12}C, consistent with expectations and thus demonstrating the validity of theoretical calculations for nuclei with Z≤20. We also report A_{n} for ^{208}Pb at two new momentum transfers (Q^{2}) extending the previous measurement. Our new data confirm the surprising result previously reported, with all three data points showing significant disagreement with the results from the Z≤20 nuclei. These data confirm our basic understanding of the underlying dynamics that govern A_{n} for nuclei containing ≲50 nucleons, but point to the need for further investigation to understand the unusual A_{n} behavior discovered for scattering off ^{208}Pb.
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Affiliation(s)
- D Adhikari
- Idaho State University, Pocatello, Idaho 83209, USA
| | - H Albataineh
- Texas A & M University - Kingsville, Kingsville, Texas 78363, USA
| | - D Androic
- University of Zagreb, Faculty of Science, Zagreb HR 10002, Croatia
| | - K Aniol
- California State University, Los Angeles, Los Angeles, California 90032, USA
| | | | - T Averett
- William & Mary, Williamsburg, Virginia 23185, USA
| | | | - S Barcus
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - V Bellini
- Istituto Nazionale di Fisica Nucleare, Sezione di Catania, 95123 Catania, Italy
| | | | - J F Benesch
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - H Bhatt
- Mississippi State University, Mississippi State, Mississippi 39762, USA
| | | | - D Bhetuwal
- Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - B Blaikie
- University of Manitoba, Winnipeg, Manitoba R3T2N2, Canada
| | - J Boyd
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - Q Campagna
- William & Mary, Williamsburg, Virginia 23185, USA
| | - A Camsonne
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - G D Cates
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - Y Chen
- Louisiana Tech University, Ruston, Louisiana 71272, USA
| | - C Clarke
- Stony Brook, State University of New York, Stony Brook, New York 11794, USA
| | - J C Cornejo
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - S Covrig Dusa
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - M M Dalton
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - P Datta
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - A Deshpande
- Stony Brook, State University of New York, Stony Brook, New York 11794, USA
- Center for Frontiers in Nuclear Science, Stony Brook, New York 11794, USA
- Brookhaven National Laboratory, Upton, New York 11973, USA
| | - D Dutta
- Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - C Feldman
- Stony Brook, State University of New York, Stony Brook, New York 11794, USA
- Institute for Advanced Computational Science, Stony Brook, New York 11794, USA
| | - E Fuchey
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - C Gal
- Mississippi State University, Mississippi State, Mississippi 39762, USA
- University of Virginia, Charlottesville, Virginia 22904, USA
- Stony Brook, State University of New York, Stony Brook, New York 11794, USA
- Center for Frontiers in Nuclear Science, Stony Brook, New York 11794, USA
| | - D Gaskell
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - T Gautam
- Hampton University, Hampton, Virginia 23668, USA
| | - M Gericke
- University of Manitoba, Winnipeg, Manitoba R3T2N2, Canada
| | - C Ghosh
- Stony Brook, State University of New York, Stony Brook, New York 11794, USA
- University of Massachusetts Amherst, Amherst, Massachusetts 01003, USA
| | - I Halilovic
- University of Manitoba, Winnipeg, Manitoba R3T2N2, Canada
| | - J-O Hansen
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - F Hauenstein
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - W Henry
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - C J Horowitz
- Indiana University, Bloomington, Indiana 47405, USA
| | - C Jantzi
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - S Jian
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - S Johnston
- University of Massachusetts Amherst, Amherst, Massachusetts 01003, USA
| | - D C Jones
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - B Karki
- Ohio University, Athens, Ohio 45701, USA
| | - S Kakkar
- University of Manitoba, Winnipeg, Manitoba R3T2N2, Canada
| | - S Katugampola
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - C E Keppel
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - P M King
- Ohio University, Athens, Ohio 45701, USA
| | - D E King
- Syracuse University, Syracuse, New York 13244, USA
| | - M Knauss
- Duquesne University, 600 Forbes Avenue, Pittsburgh, Pennsylvania 15282, USA
| | - K S Kumar
- University of Massachusetts Amherst, Amherst, Massachusetts 01003, USA
| | - T Kutz
- Stony Brook, State University of New York, Stony Brook, New York 11794, USA
| | | | - G Leverick
- University of Manitoba, Winnipeg, Manitoba R3T2N2, Canada
| | - H Liu
- University of Massachusetts Amherst, Amherst, Massachusetts 01003, USA
| | - N Liyange
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - S Malace
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - J Mammei
- University of Manitoba, Winnipeg, Manitoba R3T2N2, Canada
| | - R Mammei
- University of Winnipeg, Winnipeg, Manitoba R3B2E9, Canada
| | - M McCaughan
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - D McNulty
- Idaho State University, Pocatello, Idaho 83209, USA
| | - D Meekins
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - C Metts
- William & Mary, Williamsburg, Virginia 23185, USA
| | - R Michaels
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - M Mihovilovic
- Jôzef Stefan Institute, Ljubljana 1000, Slovenia
- Faculty of Mathematics and Physics, University of Ljubljana, Ljubljana 1000, Slovenia
| | - M M Mondal
- Stony Brook, State University of New York, Stony Brook, New York 11794, USA
- Center for Frontiers in Nuclear Science, Stony Brook, New York 11794, USA
| | - J Napolitano
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - D Nikolaev
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - M N H Rashad
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - V Owen
- William & Mary, Williamsburg, Virginia 23185, USA
| | - C Palatchi
- University of Virginia, Charlottesville, Virginia 22904, USA
- Center for Frontiers in Nuclear Science, Stony Brook, New York 11794, USA
| | - J Pan
- University of Manitoba, Winnipeg, Manitoba R3T2N2, Canada
| | - B Pandey
- Hampton University, Hampton, Virginia 23668, USA
| | - S Park
- Mississippi State University, Mississippi State, Mississippi 39762, USA
- Stony Brook, State University of New York, Stony Brook, New York 11794, USA
| | - K D Paschke
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - M Petrusky
- Stony Brook, State University of New York, Stony Brook, New York 11794, USA
- University of Colorado Boulder, Boulder, Colorado 80309, USA
| | - M L Pitt
- Virginia Tech, Blacksburg, Virginia 24061, USA
| | - S Premathilake
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - A J R Puckett
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - B Quinn
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - R Radloff
- Ohio University, Athens, Ohio 45701, USA
| | - S Rahman
- University of Manitoba, Winnipeg, Manitoba R3T2N2, Canada
| | - A Rathnayake
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - B T Reed
- Indiana University, Bloomington, Indiana 47405, USA
| | - P E Reimer
- Physics Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - R Richards
- Stony Brook, State University of New York, Stony Brook, New York 11794, USA
| | - S Riordan
- Physics Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - Y Roblin
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S Seeds
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - A Shahinyan
- A. I. Alikhanyan National Science Laboratory (Yerevan Physics Institute), Yerevan 0036, Armenia
| | - P A Souder
- Syracuse University, Syracuse, New York 13244, USA
| | - L Tang
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
- Hampton University, Hampton, Virginia 23668, USA
| | - M Thiel
- Institut für Kernphysik, Johannes Gutenberg-Universität, Mainz 55099, Germany
| | - Y Tian
- Syracuse University, Syracuse, New York 13244, USA
| | | | - E W Wertz
- William & Mary, Williamsburg, Virginia 23185, USA
| | - B Wojtsekhowski
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - W Xiong
- Syracuse University, Syracuse, New York 13244, USA
| | - B Yale
- William & Mary, Williamsburg, Virginia 23185, USA
| | - T Ye
- Stony Brook, State University of New York, Stony Brook, New York 11794, USA
| | - A Zec
- University of Virginia, Charlottesville, Virginia 22904, USA
| | - W Zhang
- Stony Brook, State University of New York, Stony Brook, New York 11794, USA
| | - J Zhang
- Stony Brook, State University of New York, Stony Brook, New York 11794, USA
- Center for Frontiers in Nuclear Science, Stony Brook, New York 11794, USA
- Shandong University, Qingdao, Shandong 266237, China
| | - X Zheng
- University of Virginia, Charlottesville, Virginia 22904, USA
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45
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Christy ME, Gautam T, Ou L, Schmookler B, Wang Y, Adikaram D, Ahmed Z, Albataineh H, Ali SF, Aljawrneh B, Allada K, Allison SL, Alsalmi S, Androic D, Aniol K, Annand J, Arrington J, Atac H, Averett T, Ayerbe Gayoso C, Bai X, Bane J, Barcus S, Bartlett K, Bellini V, Beminiwattha R, Bericic J, Bhatt H, Bhetuwal D, Biswas D, Brash E, Bulumulla D, Camacho CM, Campbell J, Camsonne A, Carmignotto M, Castellanos J, Chen C, Chen JP, Chetry T, Cisbani E, Clary B, Cohen E, Compton N, Cornejo JC, Covrig Dusa S, Crowe B, Danagoulian S, Danley T, Deconinck W, Defurne M, Desnault C, Di D, Dlamini M, Duer M, Duran B, Ent R, Fanelli C, Fuchey E, Gal C, Gaskell D, Georges F, Gilad S, Glamazdin O, Gnanvo K, Gramolin AV, Gray VM, Gu C, Habarakada A, Hague T, Hamad G, Hamilton D, Hamilton K, Hansen O, Hauenstein F, Hernandez AV, Henry W, Higinbotham DW, Holmstrom T, Horn T, Huang Y, Huber GM, Hyde C, Ibrahim H, Israel N, Jen CM, Jin K, Jones M, Kabir A, Karki B, Keppel C, Khachatryan V, King PM, Li S, Li W, Liu H, Liu J, Liyanage AH, Mack D, Magee J, Malace S, Mammei J, Markowitz P, Mayilyan S, McClellan E, Meddi F, Meekins D, Mesick K, Michaels R, Mkrtchyan A, Moffit B, Montgomery R, Myers LS, Nadel-Turonski P, Nazeer SJ, Nelyubin V, Nguyen D, Nuruzzaman N, Nycz M, Obrecht RF, Ohanyan K, Palatchi C, Pandey B, Park K, Park S, Peng C, Persio FD, Pomatsalyuk R, Pooser E, Puckett AJR, Punjabi V, Quinn B, Rahman S, Rashad MNH, Reimer PE, Riordan S, Roche J, Sapkota I, Sarty A, Sawatzky B, Saylor NH, Shabestari MH, Shahinyan A, Širca S, Smith GR, Sooriyaarachchilage S, Sparveris N, Spies R, Stefanko A, Su T, Subedi A, Sulkosky V, Sun A, Tan Y, Thorne L, Ton N, Tortorici F, Trotta R, Uniyal R, Urciuoli GM, Voutier E, Waidyawansa B, Wojtsekhowski B, Wood S, Yan X, Ye L, Ye ZH, Yero C, Zhang J, Zhao YX, Zhu P. Form Factors and Two-Photon Exchange in High-Energy Elastic Electron-Proton Scattering. Phys Rev Lett 2022; 128:102002. [PMID: 35333083 DOI: 10.1103/physrevlett.128.102002] [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: 03/22/2021] [Revised: 11/06/2021] [Accepted: 01/31/2022] [Indexed: 06/14/2023]
Abstract
We present new precision measurements of the elastic electron-proton scattering cross section for momentum transfer (Q^{2}) up to 15.75 (GeV/c)^{2}. Combined with existing data, these provide an improved extraction of the proton magnetic form factor at high Q^{2} and double the range over which a longitudinal or transverse separation of the cross section can be performed. The difference between our results and polarization data agrees with that observed at lower Q^{2} and attributed to hard two-photon exchange (TPE) effects, extending to 8 (GeV/c)^{2} the range of Q^{2} for which a discrepancy is established at >95% confidence. We use the discrepancy to quantify the size of TPE contributions needed to explain the cross section at high Q^{2}.
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Affiliation(s)
- M E Christy
- Hampton University, Hampton, Virginia 23669, USA
| | - T Gautam
- Hampton University, Hampton, Virginia 23669, USA
| | - L Ou
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - B Schmookler
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - Y Wang
- William and Mary, Williamsburg, Virginia 23185, USA
| | - D Adikaram
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - Z Ahmed
- University of Regina, Regina, Saskatchewan S4S 0A2 Canada
| | - H Albataineh
- Texas A & M University, Kingsville, Texas 77843, USA
| | - S F Ali
- Catholic University of America, Washington, District of Columbia 20064, USA
| | - B Aljawrneh
- North Carolina A&T State University, Greensboro, North Carolina 27411, USA
- Al Zaytoonah University of Jordan, Amman 11733, Jordan
| | - K Allada
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - S L Allison
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - S Alsalmi
- Kent State University, Kent, Ohio 44240, USA
| | - D Androic
- University of Zagreb, Trg Republike Hrvatske 14, 10000, Zagreb, Croatia
| | - K Aniol
- California State University, Los Angeles, Los Angeles, California 90032, USA
| | - J Annand
- SUPA School of Physics and Astronomy, University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - J Arrington
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
- Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - H Atac
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - T Averett
- William and Mary, Williamsburg, Virginia 23185, USA
| | | | - X Bai
- University of Virginia, Charlottesville, Virginia 232904, USA
| | - J Bane
- University of Tennessee, Knoxville, Tennessee 37996, USA
| | - S Barcus
- William and Mary, Williamsburg, Virginia 23185, USA
| | - K Bartlett
- William and Mary, Williamsburg, Virginia 23185, USA
| | - V Bellini
- Istituto Nazionale di Fisica Nucleare, Department of Physics and Astronomy, I-95123 Catania, Italy
| | | | - J Bericic
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - H Bhatt
- Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - D Bhetuwal
- Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - D Biswas
- Hampton University, Hampton, Virginia 23669, USA
| | - E Brash
- Christopher Newport University, Newport News, Virginia 23606, USA
| | - D Bulumulla
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - C M Camacho
- Institut de Physique Nucleaire, 15 Rue Georges Clemenceau, 91400 Orsay, France
| | - J Campbell
- Dalhousie University, Nova Scotia NS B3H 4R2, Canada
| | - A Camsonne
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - M Carmignotto
- Catholic University of America, Washington, DC 20064, USA
| | - J Castellanos
- Florida International University, Miami, Florida 33199, USA
| | - C Chen
- Hampton University, Hampton, Virginia 23669, USA
| | - J-P Chen
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - T Chetry
- Ohio University, Athens, Ohio 45701, USA
| | - E Cisbani
- Istituto Nazionale di Fisica Nucleare - Sezione di Roma, P.le Aldo Moro, 2 - 00185 Roma, Italy
| | - B Clary
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - E Cohen
- Tel Aviv University, Tel Aviv-Yafo 69978, Israel
| | - N Compton
- Ohio University, Athens, Ohio 45701, USA
| | - J C Cornejo
- William and Mary, Williamsburg, Virginia 23185, USA
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - S Covrig Dusa
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - B Crowe
- North Carolina Central University, Durham, North Carolina 27707, USA
| | - S Danagoulian
- North Carolina A&T State University, Greensboro, North Carolina 27411, USA
| | - T Danley
- Ohio University, Athens, Ohio 45701, USA
| | - W Deconinck
- William and Mary, Williamsburg, Virginia 23185, USA
| | - M Defurne
- CEA Saclay, 91191 Gif-sur-Yvette, France
| | - C Desnault
- Institut de Physique Nucleaire, 15 Rue Georges Clemenceau, 91400 Orsay, France
| | - D Di
- University of Virginia, Charlottesville, Virginia 232904, USA
| | - M Dlamini
- Ohio University, Athens, Ohio 45701, USA
| | - M Duer
- Tel Aviv University, Tel Aviv-Yafo 69978, Israel
| | - B Duran
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - R Ent
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - C Fanelli
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - E Fuchey
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - C Gal
- University of Virginia, Charlottesville, Virginia 232904, USA
| | - D Gaskell
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - F Georges
- Ecole Centrale Paris, 3 Rue Joliot Curie, 91190 Gif-sur-Yvette, France
| | - S Gilad
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - O Glamazdin
- Kharkov Institute of Physics and Technology, Kharkov 61108, Ukraine
| | - K Gnanvo
- University of Virginia, Charlottesville, Virginia 232904, USA
| | - A V Gramolin
- Boston University, Boston, Massachusetts 02215, USA
| | - V M Gray
- William and Mary, Williamsburg, Virginia 23185, USA
| | - C Gu
- University of Virginia, Charlottesville, Virginia 232904, USA
| | - A Habarakada
- Hampton University, Hampton, Virginia 23669, USA
| | - T Hague
- Kent State University, Kent, Ohio 44240, USA
| | - G Hamad
- Ohio University, Athens, Ohio 45701, USA
| | - D Hamilton
- SUPA School of Physics and Astronomy, University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - K Hamilton
- SUPA School of Physics and Astronomy, University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - O Hansen
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - F Hauenstein
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - A V Hernandez
- Catholic University of America, Washington, DC 20064, USA
| | - W Henry
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - D W Higinbotham
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - T Holmstrom
- Randolph Macon College, Ashland, Virginia 23005, USA
| | - T Horn
- Catholic University of America, Washington, DC 20064, USA
| | - Y Huang
- University of Virginia, Charlottesville, Virginia 232904, USA
| | - G M Huber
- University of Regina, Regina, Saskatchewan S4S 0A2 Canada
| | - C Hyde
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - H Ibrahim
- Cairo University, Cairo, 12613, Egypt
| | - N Israel
- Ohio University, Athens, Ohio 45701, USA
| | - C-M Jen
- Virginia Polytechnic Institute and State University, Blacksburg, Virginia 234061, USA
| | - K Jin
- University of Virginia, Charlottesville, Virginia 232904, USA
| | - M Jones
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - A Kabir
- Kent State University, Kent, Ohio 44240, USA
| | - B Karki
- Ohio University, Athens, Ohio 45701, USA
| | - C Keppel
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - V Khachatryan
- Stony Brook, State University of New York, New York 11794, USA
- Cornell University, Ithaca, New York 14853, USA
| | - P M King
- Ohio University, Athens, Ohio 45701, USA
| | - S Li
- University of New Hampshire, Durham, New Hampshire 03824, USA
| | - W Li
- University of Regina, Regina, Saskatchewan S4S 0A2 Canada
| | - H Liu
- Columbia University, New York, New York 10027, USA
| | - J Liu
- University of Virginia, Charlottesville, Virginia 232904, USA
| | - A H Liyanage
- Hampton University, Hampton, Virginia 23669, USA
| | - D Mack
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - J Magee
- William and Mary, Williamsburg, Virginia 23185, USA
| | - S Malace
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - J Mammei
- University of Manitoba, Winnipeg, MB R3T 2N2, Canada
| | - P Markowitz
- Florida International University, Miami, Florida 33199, USA
| | - S Mayilyan
- AANL, 2 Alikhanian Brothers Street, 0036 Yerevan, Armenia
| | - E McClellan
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - F Meddi
- Istituto Nazionale di Fisica Nucleare - Sezione di Roma, P.le Aldo Moro, 2 - 00185 Roma, Italy
| | - D Meekins
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - K Mesick
- Rutgers University, New Brunswick, New Jersey 08854, USA
| | - R Michaels
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - A Mkrtchyan
- Catholic University of America, Washington, DC 20064, USA
| | - B Moffit
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - R Montgomery
- SUPA School of Physics and Astronomy, University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - L S Myers
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - P Nadel-Turonski
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S J Nazeer
- Hampton University, Hampton, Virginia 23669, USA
| | - V Nelyubin
- University of Virginia, Charlottesville, Virginia 232904, USA
| | - D Nguyen
- University of Virginia, Charlottesville, Virginia 232904, USA
| | - N Nuruzzaman
- Hampton University, Hampton, Virginia 23669, USA
| | - M Nycz
- Kent State University, Kent, Ohio 44240, USA
| | - R F Obrecht
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - K Ohanyan
- AANL, 2 Alikhanian Brothers Street, 0036 Yerevan, Armenia
| | - C Palatchi
- University of Virginia, Charlottesville, Virginia 232904, USA
| | - B Pandey
- Hampton University, Hampton, Virginia 23669, USA
| | - K Park
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - S Park
- Stony Brook, State University of New York, New York 11794, USA
| | - C Peng
- Duke University, Durham, North Carolina 27708, USA
| | - F D Persio
- Istituto Nazionale di Fisica Nucleare - Sezione di Roma, P.le Aldo Moro, 2 - 00185 Roma, Italy
| | - R Pomatsalyuk
- Kharkov Institute of Physics and Technology, Kharkov 61108, Ukraine
| | - E Pooser
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - A J R Puckett
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - V Punjabi
- Norfolk State University, Norfolk, Virginia 23504, USA
| | - B Quinn
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - S Rahman
- University of Manitoba, Winnipeg, MB R3T 2N2, Canada
| | - M N H Rashad
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - P E Reimer
- Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - S Riordan
- Stony Brook, State University of New York, New York 11794, USA
| | - J Roche
- Ohio University, Athens, Ohio 45701, USA
| | - I Sapkota
- Catholic University of America, Washington, DC 20064, USA
| | - A Sarty
- Saint Mary's University, Halifax, Nova Scotia B3H 3C3, Canada
| | - B Sawatzky
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - N H Saylor
- Rensselaer Polytechnic Institute, Troy, New York 12180, USA
| | - M H Shabestari
- Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - A Shahinyan
- AANL, 2 Alikhanian Brothers Street, 0036 Yerevan, Armenia
| | - S Širca
- Faculty of Mathematics and Physics, University of Ljubljana, 1000 Ljubljana, Slovenia
| | - G R Smith
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | | | - N Sparveris
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - R Spies
- University of Manitoba, Winnipeg, MB R3T 2N2, Canada
| | - A Stefanko
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - T Su
- Kent State University, Kent, Ohio 44240, USA
| | - A Subedi
- Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - V Sulkosky
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - A Sun
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - Y Tan
- Shandong University, Shandong, Jinan 250100, China
| | - L Thorne
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - N Ton
- University of Virginia, Charlottesville, Virginia 232904, USA
| | - F Tortorici
- Istituto Nazionale di Fisica Nucleare, Department of Physics and Astronomy, I-95123 Catania, Italy
| | - R Trotta
- Duquesne University, Pittsburgh, Pennsylvania 15282, USA
| | - R Uniyal
- Catholic University of America, Washington, DC 20064, USA
| | - G M Urciuoli
- Istituto Nazionale di Fisica Nucleare - Sezione di Roma, P.le Aldo Moro, 2 - 00185 Roma, Italy
| | - E Voutier
- Institut de Physique Nucleaire, 15 Rue Georges Clemenceau, 91400 Orsay, France
| | - B Waidyawansa
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - B Wojtsekhowski
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S Wood
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - X Yan
- Huangshan University, 44 Daizhen Road, Tunxi District, Huangshan, Anhui Province, China
| | - L Ye
- Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - Z H Ye
- University of Virginia, Charlottesville, Virginia 232904, USA
- Tsinghua University, 30 Shuangqing Rd, Haidian District, Beijing 100190, China
| | - C Yero
- Florida International University, Miami, Florida 33199, USA
| | - J Zhang
- University of Virginia, Charlottesville, Virginia 232904, USA
| | - Y X Zhao
- Stony Brook, State University of New York, New York 11794, USA
| | - P Zhu
- University of Science and Technology of China, Hefei, Anhui 230026, China
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Parwez R, Baig A, Rahman S. 378 Endovascular Stenting vs. Open Surgery in Cerebral AVF Patients. Br J Surg 2022. [DOI: 10.1093/bjs/znac039.256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Abstract
Introduction
Intracranial dural arteriovenous fistulae (dAVF), typically found in the dural leaflets, are vascular malformations defined by a pathological communication between meningeal arteries and dural sinus or cortical veins. Despite many of them spontaneously resolving, they are still at high risk of hemorrhage and mortality if not effectively treated and monitored. Treatment options include endovascular embolization, surgical disconnection, and radiosurgery. With the rise of endovascular treatments now widely available, there is a massive shift towards minimally invasive surgical options while it can still be argued they are not the end of open surgical repairs.
Method
We reviewed 12 cases each of endovascular embolization and microsurgical resection in our Neurosurgical Unit retrospectively and compare between length of hospital stay, hemorrhage, need for open surgery following endovascular technique and wound infection. Cases will be selected at random over a period of 6 months.
Results
We compared surgical outcomes of 12 cases each of dural AvFs that were either managed as surgical repair or endovascular embolization. In cases with associated complication, surgical repair was the preferred method although endovascular repairs had shorter length of hospital stay, lower rates of infections and rarely needed to be followed by surgical repair.
Conclusions
Based on the result we conclude that endovascular repairs have a shorter length of hospital stay, infections and hemorrhage, yet there are instances where surgical disconnection may be the preferred treatment method on a case-by-case basis. Endovascular treatment may not have replaced open surgical procedures just yet, but the future may hold more advances in this field.
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Affiliation(s)
- R. Parwez
- Queen's Hospital, London, United Kingdom
| | - A. Baig
- Queen's Hospital, London, United Kingdom
| | - S. Rahman
- Queen's Hospital, London, United Kingdom
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Parwez R, Baig A, Rahman S. 353 The Rise of the Exoscope. Br J Surg 2022. [DOI: 10.1093/bjs/znac039.237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract
Introduction
An exoscope is a next generation HD telescope video monitoring system used to perform microsurgeries that is now a formidable rival to the existing operating microscope in neurosurgery. While the microscope revolutionised neurosurgery with its advent in 1957, the exoscope allows surgeons to operate utilising high-definition images enhancing the field of vision and focus. The exoscope opens new avenues with regards to ergonomics, teaching in theatre and enhances the surgeon’s experience.
Method
We will do a literature review on available literature on the use of exoscope in neurosurgery with regards to the operating microscope. Both qualitative and quantitative data will be reviewed. Personal experience of Neurosurgeons in our unit will also be reviewed using questionnaires.
Results
The exoscope has many benefits when compared to the operating microscope where it surpasses its predecessor in many ways. 15 studies were reviewed where the exoscope was compared to the operating microscope which concluded the exoscope equal or superior in many aspects such as teaching, ergonomics, image definition and being user friendly. There were some pitfalls of the exoscope reported such as the image being in 2D which limited the surgeon’s stereoscopic vision and the costs involved.
Conclusions
The exoscope is a revolutionary advent in neurosurgery and may soon make the operating microscope obsolete but there is still room for improvement.
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Affiliation(s)
- R. Parwez
- Queen's Hospital, BHRUT, London, United Kingdom
| | - A. Baig
- Queen's Hospital, BHRUT, London, United Kingdom
| | - S. Rahman
- Queen's Hospital, BHRUT, London, United Kingdom
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Kandil M, Rahman S, Abdul Z, Abelaty M. 79 Yellow Nail Syndrome Management with Nail Ablation and Reconstruction with a Full-Thickness Skin Graft. Br J Surg 2022. [DOI: 10.1093/bjs/znac039.040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Abstract
Aim
Yellow nail syndrome is a very rare and complex syndrome associated with aberrant nail growth multiple digits, in this case, the report we offer this as a solution to a challenging and rare condition.
Method
A 56-year-old lady underwent nail ablation and reconstruction with a full-thickness skin graft (FTSG).
Results
The patient had good cosmetic results.
Conclusions
Yellow nail syndrome is a rare but complex condition that is not yet fully understood. Nail plate deformity and discoloration are on the way the disease can manifest itself. Although not often encountered by plastic surgeons; The role of surgical excision for patients affected by dystrophic nails in yellow nail syndrome was given more emphasis within the literature. It is an effective technique that can be adapted as a standardized treatment modality
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Affiliation(s)
- M. Kandil
- Bradford Royal Infirmary, Bradford, United Kingdom
| | - S. Rahman
- Sheffiled Hallamshire Hospital, Sheffield, United Kingdom
| | - Z. Abdul
- Bradford Royal Infirmary, Bradford, United Kingdom
| | - M. Abelaty
- Bradford Royal Infirmary, Bradford, United Kingdom
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Baig A, Parwez R, Rahman S, Itum H, Khoudir M. 343 Medical Teaching in the Covid Era: The Rise of the Webinar. Br J Surg 2022. [DOI: 10.1093/bjs/znac039.227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Abstract
Background
Since the emergence of COVID-19, virtually the whole world has been forced to into lockdown and adapt to a way of life not seen in living memory. Although pandemics are not new, nor will this likely be the last, the modern era has one major advantage that our ancestors did not have: the internet.
Through the usage of modern technology and the internet, we have been able to continue our professional lives through a virtual medium through programs like Zoom. As part of this virtual shift, medical teaching is also mainly online. A QI study was conducted on webinars.
Aim
To determine whether medical students and junior doctors find online teaching to be an effective medium of learning, as well as to determine the advantages and disadvantages, including mental health impact.
Method
A webinar series was created, entitled back2basics (B2B) surgery, which was run for around 2 months with weekly, 1-hour long webinars on a surgical topic. Feedback was collected following each session specific to that week’s webinar as a general opinion of our participants on webinars.
Results
Both qualitative and quantitative data was collected. The majority (83%) of participants agreed by the 8th week that webinars were an effective mode of medical teaching compared to 48% in the 1st week. Participants pointed out that webinars are ‘low pressure’ and ‘less competitive’ than in person lectures, so good for mental health.
Conclusions
Participants agree that the webinars are effective for medical teaching and that there are mental health benefits.
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Affiliation(s)
- A. Baig
- Queens hospital, Romford, United Kingdom
| | - R. Parwez
- Queens hospital, Romford, United Kingdom
| | - S. Rahman
- Queens hospital, Romford, United Kingdom
| | - H. Itum
- Queens hospital, Romford, United Kingdom
| | - M. Khoudir
- Queens hospital, Romford, United Kingdom
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Mumu NS, Nessa A, Rahman S, Meherubin I, Yeasmin F, Afroz L. Evaluation of the Status of Glycated Haemoglobin in Male type 2 Diabetic Patients. Mymensingh Med J 2022; 31:37-40. [PMID: 34999677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The incidence of type 2 diabetes mellitus is increasing in Bangladesh with its attendant complications. Glycated haemoglobin (HbA1c) is broadly used as an index of mean glycaemia. This study was planned to evaluate the status of glycated haemoglobin (HbA1c) in male type 2 diabetic patients. This cross-sectional analytical study was executed in the Department of Physiology, Mymensingh Medical College, Mymensingh, Bangladesh from July 2019 to June 2020. This study included in total 200 male subjects who are above 40 years in age. Among them, one hundred (100) male type 2 diabetic patients were taken as study group (Group I) and one hundred (100) age matched healthy male subjects were taken as control group (Group II). Glycated haemoglobin was assessed by ion-exchange high performance liquid chromatography (HPLC) method. Mean±SD was used to express data and unpaired Student's 't' test was used to calculate the statistical significance of difference amongst the groups. Pearson's correlation coefficient test was done to correlate the relationship between serum fasting glucose and glycated haemoglobin. The mean±SD of fasting serum glucose of Group I and Group II were 9.79±2.88mmol/L and 5.23±0.48mmol/L respectively. The mean±SD of glycated haemoglobin of Group I and Group II were 8.38±1.28mmol/L and 5.19±0.46mmol/L respectively. The mean±SD of glycated haemoglobin is found to be significantly higher in the study group compared to the control group and there is a positive correlation between fasting serum glucose and glycated haemoglobin. So, routine estimation of this parameter (HbA1c) is important for prevention of complications related to type 2 diabetes mellitus for leading healthy life.
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Affiliation(s)
- N S Mumu
- Dr Naureen Sayeed Mumu, Assistant Professor, Department of Physiology, President Abdul Hamid Medical College, Kishorganj, Bangladesh; E-mail:
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