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Sharma R, Ansari MM, Alam M, Fareed M, Ali N, Ahmad A, Sultana S, Khan R. Sophorin mitigates flutamide-induced hepatotoxicity in wistar rats. Toxicon 2024; 243:107722. [PMID: 38653393 DOI: 10.1016/j.toxicon.2024.107722] [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: 01/18/2024] [Revised: 04/06/2024] [Accepted: 04/12/2024] [Indexed: 04/25/2024]
Abstract
Flutamide is frequently used in the management of prostate cancer, hirsutism, and acne. It is a non-steroidal anti-androgenic drug and causes hepatotoxicity. The current study's objective is to evaluate sophorin's hepatoprotective effectiveness against flutamide-induced hepatotoxicity in Wistar rats. Sophorin is a citrus flavonoid glycoside, also known as rutin, which is a low molecular weight polyphenolic compound with natural antioxidant properties and reported to have promising hepatoprotective efficacy. In this study, sophorin was used at a dose of 100 mg/kg body weight in purified water via oral route for 4 week daily whereas, flutamide was used at a dose of 100 mg kg/b.wt for 4 weeks daily in 0.5% carboxy methyl cellulose (CMC) through the oral route for the induction of hepatotoxicity. Flutamide administration leads to enhanced reactive oxygen species (ROS) generation, an imbalance in redox homeostasis and peroxidation of lipid resulted in reduced natural antioxidant level in liver tissue. Our result demonstrated that sophorin significantly abrogate flutamide induced lipid peroxidation, protein carbonyl (PC), and also significantly increasesed in enzymatic activity/level of tissue natural antioxidant such as reduced glutathione(GSH), glutathione reductase(GR), catalase, and superoxide dismutase(SOD). Additionally, sophorin reduced the activity of cytochrome P450 3A1 in liver tissue which was elevated due to flutamide treatment. Furthermore, sophorin treatment significantly decreased the pro-inflammatory cytokines (TNF-α and IL-6) level. Immunohistochemical analysis for the expression of inflammatory proteins (iNOS and COX-2) in hepatic tissue was decreased after sophorin treatment against flutamide-induced hepatotoxicity. Moreover, sophorin suppressed the infiltration of mast cells in liver tissue which further showed anti-inflammatory potential of sophorin. Our histological investigation further demonstrated sophorin's hepatoprotective function by restoring the typical histology of the liver. Based on the aforementioned information, we are able to come to the conclusion that sophorin supplementation might benefit wistar rats with flutamide-induced hepatic damage by reducing oxidative stress and hepatocellular inflammation.
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Affiliation(s)
- Rishi Sharma
- Molecular Carcinogenesis and Chemoprevention Division, Department of Toxicology, School of Chemical & Life Sciences, Jamia Hamdard, New Delhi, 110062, India
| | - Md Meraj Ansari
- Heavy Metal and Clinical Toxicology Laboratory, Department of Toxicology, School of Chemical & Life Sciences, Jamia Hamdard, New Delhi, 110062, India
| | - Manzar Alam
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, Jamia Nagar, New Delhi, 110025, India
| | - Mohammad Fareed
- Department of Environmental Health and Clinical Epidemiology, Center for Global Health Research, Saveetha Medical College and Hospital, Saveetha Institute of Medical and Technical Sciences (SIMATS), Chennai, Tamil Nadu, India
| | - Nemat Ali
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Anas Ahmad
- Julia McFarlane Diabetes Research Centre (JMDRC) and Department of Microbiology, Immunology and Infectious Diseases, Snyder Institute for Chronic Diseases and Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta, T2N 4N1, Canada
| | - Sarwat Sultana
- Molecular Carcinogenesis and Chemoprevention Division, Department of Toxicology, School of Chemical & Life Sciences, Jamia Hamdard, New Delhi, 110062, India
| | - Rehan Khan
- Chemical Biology Unit, Institute of Nano Science and Technology, Knowledge City, Sector-81, Mohali, 140306, Punjab, India.
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2
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Jori C, Ansari MM, Ahmad A, Ali N, Raza SS, Khan R. Biomaterial-based combinatorial approach of aescin-comprised zein-coated gelatin nanoparticles alleviates synovial inflammation in experimental inflammatory arthritis. Nanoscale 2024; 16:7965-7975. [PMID: 38567436 DOI: 10.1039/d3nr06476j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
Rheumatoid arthritis (RA) is a chronic inflammatory autoimmune disease that mostly affects joints. Although RA therapy has made significant progress, difficulties including extensive medication metabolism and its quick clearance result in its inadequate bioavailability. The anti-inflammatory effect of zein was reported with other medications, but it has certain limitations. There are reports on the anti-oxidant and anti-inflammatory effect of aescin, which exhibits low bioavailability for the treatment of rheumatoid arthritis. Also, the combinatorial effect of zein with other effective drug delivery systems is still under investigation for the treatment of experimental collagen-induced rheumatoid arthritis. The focus of this study was to formulate and define the characteristics of zein-coated gelatin nanoparticles encapsulated with aescin (Ze@Aes-GNPs) and to assess and contrast the therapeutic effectiveness of Ze@Aes-GNPs towards collagen-induced RA in Wistar rats. Nanoprecipitation and the layer-by-layer coating process were used to fabricate Ze@Aes-GNPs and their hydrodynamic diameter was determined to be 182 nm. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) were used to further validate the size, shape, and surface morphology of Ze@Aes-GNPs. When tested against foreskin fibroblasts (BJ), these nanoparticles demonstrated significantly high cytocompatibility. Both Aes and Ze@Aes-GNPs were effective in treating arthritis, as shown by the decreased edoema, erythema, and swelling of the joints, between which Ze@Aes-GNPs were more effective. Further, it was demonstrated that Aes and Ze@Aes-GNPs reduced the levels of oxidative stress (articular elastase, lipid peroxidation, catalase, superoxide dismutase and nitric oxide) and inflammatory indicators (TNF-α, IL-1β and myeloperoxidase). The histopathology findings further demonstrated that Ze@Aes-GNPs considerably reduced the infiltration of inflammatory cells at the ankle joint cartilage compared to Aes. Additionally, immunohistochemistry examination showed that treatment with Ze@Aes-GNPs suppressed the expression of pro-inflammatory markers (COX-2 and IL-6) while increasing the expression of SOD1. In summary, the experiments indicated that Aes and Ze@Aes-GNPs lowered the severity of arthritis, and critically, Ze@Aes-GNPs showed better effectiveness in comparison to Aes. This suppression of oxidative stress and inflammation was likely driven by Aes and Ze@Aes-GNPs.
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Affiliation(s)
- Chandrashekhar Jori
- Chemical Biology Unit, Institute of Nano Science and Technology, Sector 81, Knowledge City, Sahibzada Ajit Singh Nagar, Mohali, Punjab 140306, India.
| | - Md Meraj Ansari
- Chemical Biology Unit, Institute of Nano Science and Technology, Sector 81, Knowledge City, Sahibzada Ajit Singh Nagar, Mohali, Punjab 140306, India.
| | - Anas Ahmad
- Julia McFarlane Diabetes Research Centre (JMDRC) and Department of Microbiology, Immunology and Infectious Diseases, Snyder Institute for Chronic Diseases and Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta T2N 4N1, Canada
| | - Nemat Ali
- Department of Pharmacology & Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Syed Shadab Raza
- Laboratory for Stem Cell and Restorative Neurology, Department of Biotechnology, Era's Lucknow Medical College Hospital, Sarfarazganj, Lucknow 226003, India
| | - Rehan Khan
- Chemical Biology Unit, Institute of Nano Science and Technology, Sector 81, Knowledge City, Sahibzada Ajit Singh Nagar, Mohali, Punjab 140306, India.
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Guerrini V, Prideaux B, Khan R, Subbian S, Wang Y, Sadimin E, Pawar S, Ukey R, Singer EA, Xue C, Gennaro ML. Heterogeneity of foam cell biogenesis across diseases. bioRxiv 2024:2023.06.08.542766. [PMID: 37333211 PMCID: PMC10274805 DOI: 10.1101/2023.06.08.542766] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/20/2023]
Abstract
Foam cells are dysfunctional, lipid-laden macrophages associated with chronic inflammation of diverse origin. The long-standing paradigm that foam cells are cholesterol-laden derives from atherosclerosis research. We previously showed that, in tuberculosis, foam cells surprisingly accumulate triglycerides. Here, we utilized bacterial (Mycobacterium tuberculosis), fungal (Cryptococcus neoformans), and human papillary renal cell carcinoma (pRCC) models. We applied mass spectrometry-based imaging to assess the spatial distribution of storage lipids relative to foam-cell-rich areas in lesional tissues, and characterized lipid-laden macrophages generated under corresponding in vitro conditions. The in vivo data were consistent with in vitro findings showing that cryptococcus-infected macrophages accumulated triglycerides, while macrophages exposed to pRCC-conditioned-medium accumulated both triglycerides and cholesterol. Moreover, cryptococcus- and mycobacterium-infected macrophages accumulated triglycerides by different mechanisms. Collectively, our data indicate that the mechanisms of foam cell formation are disease-microenvironment-specific. Since foam cells are potential therapeutic targets, recognizing that their formation is disease-specific opens new biomedical research directions.
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Affiliation(s)
- Valentina Guerrini
- Public Health Research Institute, Rutgers New Jersey Medical School, Rutgers Biomedical and Health Sciences, Newark, NJ 07103
| | - Brendan Prideaux
- Department of Neurobiology, University of Texas Medical Branch, Galveston, TX 77555
| | - Rehan Khan
- Public Health Research Institute, Rutgers New Jersey Medical School, Rutgers Biomedical and Health Sciences, Newark, NJ 07103
| | - Selvakumar Subbian
- Public Health Research Institute, Rutgers New Jersey Medical School, Rutgers Biomedical and Health Sciences, Newark, NJ 07103
- Department of Medicine, Rutgers New Jersey Medical School, Rutgers Biomedical and Health Sciences, Newark, NJ 07103
| | - Yina Wang
- Public Health Research Institute, Rutgers New Jersey Medical School, Rutgers Biomedical and Health Sciences, Newark, NJ 07103
| | - Evita Sadimin
- Section of Urologic Pathology and Rutgers Cancer Institute of New Jersey and Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ 08901
| | - Siddhi Pawar
- Public Health Research Institute, Rutgers New Jersey Medical School, Rutgers Biomedical and Health Sciences, Newark, NJ 07103
| | - Rahul Ukey
- Public Health Research Institute, Rutgers New Jersey Medical School, Rutgers Biomedical and Health Sciences, Newark, NJ 07103
| | - Eric A. Singer
- Section of Urologic Oncology, Rutgers Cancer Institute of New Jersey and Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ 08901
| | - Chaoyang Xue
- Public Health Research Institute, Rutgers New Jersey Medical School, Rutgers Biomedical and Health Sciences, Newark, NJ 07103
- Department of Microbiology, Rutgers New Jersey Medical School, Rutgers Biomedical and Health Sciences, Newark, NJ 07103
| | - Maria Laura Gennaro
- Public Health Research Institute, Rutgers New Jersey Medical School, Rutgers Biomedical and Health Sciences, Newark, NJ 07103
- Department of Medicine, Rutgers New Jersey Medical School, Rutgers Biomedical and Health Sciences, Newark, NJ 07103
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Patel P, Raval M, Airao V, Ali N, Shazly GA, Khan R, Prajapati B. Formulation of Folate Receptor-Targeted Silibinin-Loaded Inhalable Chitosan Nanoparticles by the QbD Approach for Lung Cancer Targeted Delivery. ACS Omega 2024; 9:10353-10370. [PMID: 38463259 PMCID: PMC10918659 DOI: 10.1021/acsomega.3c07954] [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: 10/11/2023] [Revised: 01/25/2024] [Accepted: 02/07/2024] [Indexed: 03/12/2024]
Abstract
Aim: Targeted delivery of chemotherapeutics by functionalized nanoparticles exhibits a wonderful prospect for cancer treatment. The main objective of this research was to develop folate receptor-targeted silibinin (SB)-loaded inhalable polymeric nanoparticles (FA-CS-SB-NPs) for the treatment of lung cancer. Method: The qbD approach was implemented to prepare SB-loaded nanoparticles. Folic acid was conjugated by electrostatic conjugation in an optimized batch. The therapeutic potentials of formulations were determined using a lung cancer cell-bearing rat model. Result: Optimized formulation exhibited a spherical surface with a mean particle size of 275 ± 1.20 nm, a PDI of 0.234 ± 0.07, a ζ-potential of 32.50 ± 0.21, an entrapment efficiency of 75.52 ± 0.87%, and a CDR of 63.25 ± 1.21% at 48 h. Aerodynamic behaviors such as the mass median aerodynamic diameter (MMAD) and geometric size distribution (GSD) were found to be 2.75 ± 1.02 and 3.15 ± 0.88 μm, respectively. After 24 h of incubation with FA-CS-SB-NPs, the IC50 value was found to be 24.5 g/mL. FA-SB-CS-NPs maintained a significantly higher deposition of SB in lung tissues. Conclusions: Thus, the noninvasive nature and target specificity of FA-CS-SB-NPs pave the way for pulmonary delivery for treating lung cancer.
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Affiliation(s)
- Priya Patel
- Department
of Pharmaceutical Sciences, Saurashtra University, Rajkot 360005, Gujarat, India
| | - Mihir Raval
- Department
of Pharmaceutical Sciences, Sardar Patel
University, Vallabh Vidya Nagar 388120, Gujarat, India
| | - Vishal Airao
- Department
of Pharmaceutical Sciences, Saurashtra University, Rajkot 360005, Gujarat, India
| | - Nemat Ali
- Department
of Pharmacology and Toxicology, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia
| | - Gamal A. Shazly
- Department
of Pharmaceutics, College of Pharmacy, King
Saud University, Riyadh 11451, Saudi Arabia
| | - Rehan Khan
- Public
Health Research Institute (PHRI), Rutgers,
New Jersey Medical School (NJMS), 225 Warren Street, Newark, New Jersey 07103, United States
| | - Bhupendra Prajapati
- Shree S.
K. Patel College of Pharmaceutical Education and Research, Ganpat University, Mehsana 384012, Gujarat, India
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Ansari MM, Jori C, Ahmad A, Maqbool T, Parvez MK, Raza SS, Khan R. Oral delivery of aescin-loaded gelatin nanoparticles ameliorates carbon tetrachloride-induced hepatotoxicity in Wistar rats. Life Sci 2024; 340:122480. [PMID: 38301876 DOI: 10.1016/j.lfs.2024.122480] [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: 09/15/2023] [Revised: 01/23/2024] [Accepted: 01/28/2024] [Indexed: 02/03/2024]
Abstract
AIM The liver plays a crucial role in biotransformation but it is susceptible to chemical-induced damage, known as hepatotoxicity. Traditional therapies for protecting the liver face significant challenges, including poor bioavailability, off-target effects, adverse reactions, drug breakdown, and inadequate uptake. These issues emphasize the need for precise, targeted therapeutic approaches against hepatotoxicity. MATERIALS AND METHODS The objective of our research was to develop a customized, biocompatible, and biodegradable nanodrug delivery system for hepatoprotection. We chose collagen hydrolyzed protein, or gelatin, as the base material and utilized solvent evaporation and nanoprecipitation methods to create nanoparticles with size ranging from 130 to 155 nm. The resulting nanoparticles exhibited a spherical and smooth surface, as confirmed by scanning and transmission electron microscopy. KEY FINDINGS Bioactive aescin (AES), into these gelatin nanoparticles (AES-loaded gel NPs), we tested these nanoparticles using a hepatotoxicity model. The results were indicating a significant reduction in the levels of key biomolecules, including NF-κB, iNOS, BAX, and COX-2 and decreased serum levels of enzymes ALT and AST. This reduction correlated with a notable alleviation in the severity of hepatotoxicity. Furthermore, the treatment with AES-loaded gel NPs resulted in the downregulation of several inflammatory and liver-specific biomarkers, including nitrite, MPO, TNF-α, and IL-6. SIGNIFICANCE In summary, our study demonstrates that the AES-loaded gel NPs were markedly more effective in mitigating experimental hepatotoxicity when compared to the free aescin. The nanoparticles exhibited a propensity for suppressing liver damage, showcasing the potential of this targeted therapeutic approach for safeguarding the liver from harmful chemical insults.
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Affiliation(s)
- Md Meraj Ansari
- Centre for Pharmaceutical Nanotechnology, Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research, S.A.S Nagar, Sector 67, Mohali, Punjab 160062, India
| | - Chandrashekhar Jori
- Chemical Biology Unit, Institute of Nano Science and Technology, Knowledge City, Sector-81, Mohali 140306, Punjab, India
| | - Anas Ahmad
- Julia McFarlane Diabetes Research Centre (JMDRC) and Department of Microbiology, Immunology and Infectious Diseases, Snyder Institute for Chronic Diseases and Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta T2N 4N1, Canada
| | - Tariq Maqbool
- Laboratory of Nanotherapeutics and Regenerative Medicine, Department of Nanotechnology, University of Kashmir, Srinagar, India
| | - Mohammad Khalid Parvez
- Department of Pharmacognosy, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Syed Shadab Raza
- Laboratory for Stem Cell and Restorative Neurology, Department of Biotechnology, Era's Lucknow Medical College Hospital, Sarfarazganj, Lucknow 226003, India
| | - Rehan Khan
- Chemical Biology Unit, Institute of Nano Science and Technology, Knowledge City, Sector-81, Mohali 140306, Punjab, India.
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Maniero C, Ng SM, Collett G, Godec T, Siddiqui I, Antoniou S, Kumar A, Janmohamed A, Nair S, Kotecha A, Khan R, Khanji MY, Kapil V, Gupta J, Gupta AK. Differential impact of COVID-19 on mental health and burnout. Occup Med (Lond) 2024; 74:45-52. [PMID: 37040624 PMCID: PMC10875923 DOI: 10.1093/occmed/kqad011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/13/2023] Open
Abstract
BACKGROUND There may be differential impact of the COVID-19 pandemic on mental health and burnout rates of healthcare professionals (HCPs) performing different roles. AIMS To examine mental health and burnout rates, and possible drivers for any disparities between professional roles. METHODS In this cohort study, online surveys were distributed to HCPs in July-September 2020 (baseline) and re-sent 4 months later (follow-up; December 2020) assessing for probable major depressive disorder (MDD), generalized anxiety disorder (GAD), insomnia, mental well-being and burnout (emotional exhaustion and depersonalization). Separate logistic regression models (at both phases) compared the risk of outcomes between roles: healthcare assistants (HCAs), nurses and midwives (nurses), allied health professionals (AHPs) and doctors (reference group). Separate linear regression models were also developed relating the change in scores to professional role. RESULTS At baseline (n = 1537), nurses had a 1.9-fold and 2.5-fold increased risk of MDD and insomnia, respectively. AHPs had a 1.7-fold and 1.4-fold increased risk of MDD and emotional exhaustion, respectively. At follow-up (n = 736), the disproportionate risk between doctors and others worsened: nurses and HCAs were at 3.7-fold and 3.6-fold increased risk of insomnia, respectively. Nurses also had a significantly increased risk of MDD, GAD, poor mental well-being and burnout. Nurses also had significantly worsened anxiety, mental well-being and burnout scores over time, relative to doctors. CONCLUSIONS Nurses and AHPs had excess risk of adverse mental health and burnout during the pandemic, and this difference worsened over time (in nurses especially). Our findings support adoption of targeted strategies accounting for different HCP roles.
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Affiliation(s)
- C Maniero
- Barts Heart Centre, St. Bartholomew’s Hospital, Barts Health NHS Trust, London EC1A 7BE, UK
- William Harvey Research Institute, Queen Mary University of London, London EC1M 6BQ, UK
| | - S M Ng
- Barts Heart Centre, St. Bartholomew’s Hospital, Barts Health NHS Trust, London EC1A 7BE, UK
| | - G Collett
- William Harvey Research Institute, Queen Mary University of London, London EC1M 6BQ, UK
| | - T Godec
- William Harvey Research Institute, Queen Mary University of London, London EC1M 6BQ, UK
| | - I Siddiqui
- Wellbeing Hub, Newham Training Hub, London E15 1HP, UK
- Northeast London CCG, London E15 1DA, UK
- Woodgrange Medical Practice, London E7 0QH, UK
| | - S Antoniou
- Barts Heart Centre, St. Bartholomew’s Hospital, Barts Health NHS Trust, London EC1A 7BE, UK
| | - A Kumar
- Wrightington, Wigan and Leigh NHS Foundation Trust, Wigan WN1 1XX, UK
| | - A Janmohamed
- St George’s University Hospitals NHS Foundation Trust, London SW17 0QT, UK
| | - S Nair
- Glan Clwyd Hospital, Betsi Cadwaladr University Health Board, Wales LL18 5UJ, UK
| | - A Kotecha
- Royal Devon and Exeter Hospital, Exeter, Devon EX2 5DW, UK
| | - R Khan
- The Royal London Hospital, Barts Health NHS Trust, London E1 1BB, UK
| | - M Y Khanji
- Barts Heart Centre, St. Bartholomew’s Hospital, Barts Health NHS Trust, London EC1A 7BE, UK
- William Harvey Research Institute, Queen Mary University of London, London EC1M 6BQ, UK
- UCLPartners, London W1T 7HA, UK
- Newham University Hospital, Barts Health NHS Trust, London E13 8SL, UK
| | - V Kapil
- Barts Heart Centre, St. Bartholomew’s Hospital, Barts Health NHS Trust, London EC1A 7BE, UK
- William Harvey Research Institute, Queen Mary University of London, London EC1M 6BQ, UK
- The Royal London Hospital, Barts Health NHS Trust, London E1 1BB, UK
| | - J Gupta
- South West London and St George’s Mental Health NHS Trust, London SW17 0YF, UK
| | - A K Gupta
- Barts Heart Centre, St. Bartholomew’s Hospital, Barts Health NHS Trust, London EC1A 7BE, UK
- William Harvey Research Institute, Queen Mary University of London, London EC1M 6BQ, UK
- The Royal London Hospital, Barts Health NHS Trust, London E1 1BB, UK
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7
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Khan R, Ji W, Guzman-Rivera J, Madhvi A, Andrews T, Richlin B, Suarez C, Gaur S, Cuddy W, Singh AR, Bukulmez H, Kaelber D, Kimura Y, Ganapathi U, Michailidis IE, Ukey R, Moroso-Fela S, Kuster JK, Casseus M, Roy J, Kleinman LC, Horton DB, Lakhani SA, Gennaro ML. A genetically modulated Toll-like-receptor-tolerant phenotype in peripheral blood cells of children with multisystem inflammatory syndrome. medRxiv 2024:2024.02.02.24301686. [PMID: 38370700 PMCID: PMC10871447 DOI: 10.1101/2024.02.02.24301686] [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] [Subscribe] [Scholar Register] [Indexed: 02/20/2024]
Abstract
Dysregulated innate immune responses contribute to multisystem inflammatory syndrome in children (MIS-C), characterized by gastrointestinal, mucocutaneous, and/or cardiovascular injury occurring weeks after SARS-CoV-2 exposure. To investigate innate immune functions in MIS-C, we stimulated ex vivo peripheral blood cells from MIS-C patients with agonists of Toll-like receptors (TLR), key innate immune response initiators. We found severely dampened cytokine responses and elevated gene expression of negative regulators of TLR signaling. Increased plasma levels of zonulin, a gut leakage marker, were also detected. These effects were also observed in children enrolled months after MIS-C recovery. Moreover, cells from MIS-C children carrying rare genetic variants of lysosomal trafficking regulator (LYST) were less refractory to TLR stimulation and exhibited lysosomal and mitochondrial abnormalities with altered energy metabolism. Our results strongly suggest that MIS-C hyperinflammation and/or excessive or prolonged stimulation with gut-originated TLR ligands drive immune cells to a lasting refractory state. TLR hyporesponsiveness is likely beneficial, as suggested by excess lymphopenia among rare LYST variant carriers. Our findings point to cellular mechanisms underlying TLR hyporesponsiveness; identify genetic determinants that may explain the MIS-C clinical spectrum; suggest potential associations between innate refractory states and long COVID; and highlight the need to monitor long-term consequences of MIS-C.
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Affiliation(s)
- Rehan Khan
- Public Health Research Institute, Rutgers New Jersey Medical School, Rutgers Biomedical and Health Sciences, Newark, NJ
| | - Weizhen Ji
- Pediatric Genomics Discovery Program, Department of Pediatrics, Yale University School of Medicine, New Haven, CT 06510
| | - Jeisac Guzman-Rivera
- Public Health Research Institute, Rutgers New Jersey Medical School, Rutgers Biomedical and Health Sciences, Newark, NJ
| | - Abhilasha Madhvi
- Public Health Research Institute, Rutgers New Jersey Medical School, Rutgers Biomedical and Health Sciences, Newark, NJ
| | - Tracy Andrews
- Department of Biostatistics and Epidemiology, Rutgers School of Public Health, Piscataway, NJ
| | - Benjamin Richlin
- Pediatric Clinical Research Center, and Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ
| | - Christian Suarez
- Pediatric Clinical Research Center, and Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ
| | - Sunanda Gaur
- Department of Pediatrics, Clinical Research Center, Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ
| | | | - Aalok R Singh
- Maria Fareri Children's Hospital, Valhalla, NY
- New York Medical College, Valhalla, NY
| | - Hulya Bukulmez
- Department of Pediatrics, Division of Rheumatology, MetroHealth System, Cleveland OH
| | - David Kaelber
- Department of Pediatrics, Division of Rheumatology, MetroHealth System, Cleveland OH
- Center for Clinical Informatics Research and Education, MetroHealth System, Cleveland OH
- Department of Internal Medicine, Pediatrics, and Population and Quantitative Health Sciences, Case Western Reserve University, Cleveland OH
| | - Yukiko Kimura
- Hackensack University Medical Center, Hackensack Meridian School of Medicine, Nutley, NJ
| | - Usha Ganapathi
- Public Health Research Institute, Rutgers New Jersey Medical School, Rutgers Biomedical and Health Sciences, Newark, NJ
| | - Ioannis E Michailidis
- Public Health Research Institute, Rutgers New Jersey Medical School, Rutgers Biomedical and Health Sciences, Newark, NJ
| | - Rahul Ukey
- Public Health Research Institute, Rutgers New Jersey Medical School, Rutgers Biomedical and Health Sciences, Newark, NJ
| | - Sandra Moroso-Fela
- Department of Pediatrics, Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ
| | - John K Kuster
- Pediatric Genomics Discovery Program, Department of Pediatrics, Yale University School of Medicine, New Haven, CT 06510
| | - Myriam Casseus
- Department of Pediatrics, Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ
| | - Jason Roy
- Department of Biostatistics and Epidemiology, Rutgers School of Public Health, Piscataway, NJ
| | - Lawrence C Kleinman
- Department of Pediatrics, Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ
- Department of Global Urban Health, Rutgers School of Public Health, Piscataway, NJ
| | - Daniel B Horton
- Department of Biostatistics and Epidemiology, Rutgers School of Public Health, Piscataway, NJ
- Department of Pediatrics, Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ
- Rutgers Center for Pharmacoepidemiology and Treatment Science, Institute for Health, Health Care Policy and Aging Research, New Brunswick, NJ
| | - Saquib A Lakhani
- Pediatric Genomics Discovery Program, Department of Pediatrics, Yale University School of Medicine, New Haven, CT 06510
| | - Maria Laura Gennaro
- Public Health Research Institute, Rutgers New Jersey Medical School, Rutgers Biomedical and Health Sciences, Newark, NJ
- Department of Medicine, Rutgers New Jersey Medical School, Rutgers Biomedical and Health Sciences, Newark, NJ
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8
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Vlachou F, Iakovou D, Daru J, Khan R, Pepas L, Quenby S, Iliodromiti S. Fetal loss and long-term maternal morbidity and mortality: A systematic review and meta-analysis. PLoS Med 2024; 21:e1004342. [PMID: 38335157 PMCID: PMC10857720 DOI: 10.1371/journal.pmed.1004342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Accepted: 01/03/2024] [Indexed: 02/12/2024] Open
Abstract
BACKGROUND Evidence suggests common pathways between pregnancy losses and subsequent long-term maternal morbidity, rendering pregnancy complications an early chronic disease marker. There is a plethora of studies exploring associations between miscarriage and stillbirth with long-term adverse maternal health; however, these data are inconclusive. METHODS AND FINDINGS We systematically searched MEDLINE, EMBASE, AMED, BNI, CINAHL, and the Cochrane Library with relevant keywords and MeSH terms from inception to June 2023 (no language restrictions). We included studies exploring associations between stillbirth or miscarriage and incidence of cardiovascular, malignancy, mental health, other morbidities, and all-cause mortality in women without previous pregnancy loss. Studies reporting short-term morbidity (within a year of loss), case reports, letters, and animal studies were excluded. Study selection and data extraction were performed by 2 independent reviewers. Risk of bias was assessed using the Newcastle Ottawa Scale (NOS) and publication bias with funnel plots. Subgroup analysis explored the effect of recurrent losses on adverse outcomes. Statistical analysis was performed using an inverse variance random effects model and results are reported as risk ratios (RRs) with 95% confidence intervals (CIs) and prediction intervals (PIs) by combining the most adjusted RR, odds ratios (ORs) and hazard ratios (HRs) under the rare outcome assumption. We included 56 observational studies, including 45 in meta-analysis. There were 1,119,815 women who experienced pregnancy loss of whom 951,258 had a miscarriage and 168,557 stillbirth, compared with 11,965,574 women without previous loss. Women with a history of stillbirth had a greater risk of ischaemic heart disease (IHD) RR 1.56, 95% CI [1.30, 1.88]; p < 0.001, 95% PI [0.49 to 5.15]), cerebrovascular (RR 1.71, 95% CI [1.44, 2.03], p < 0.001, 95% PI [1.92, 2.42]), and any circulatory/cardiovascular disease (RR 1.86, 95% CI [1.01, 3.45], p = 0.05, 95% PI [0.74, 4.10]) compared with women without pregnancy loss. There was no evidence of increased risk of cardiovascular disease (IHD: RR 1.11, 95% CI [0.98, 1.27], 95% PI [0.46, 2.76] or cerebrovascular: RR 1.01, 95% CI [0.85, 1.21]) in women experiencing a miscarriage. Only women with a previous stillbirth were more likely to develop type 2 diabetes mellitus (T2DM) (RR: 1.16, 95% CI [1.07 to 2.26]; p < 0.001, 95% PI [1.05, 1.35]). Women with a stillbirth history had an increased risk of developing renal morbidities (RR 1.97, 95% CI [1.51, 2.57], p < 0.001, 95% [1.06, 4.72]) compared with controls. Women with a history of stillbirth had lower risk of breast cancer (RR: 0.80, 95% CI [0.67, 0.96], p-0.02, 95% PI [0.72, 0.93]). There was no evidence of altered risk of other malignancies in women experiencing pregnancy loss compared to controls. There was no evidence of long-term mental illness risk in women with previous pregnancy losses (stillbirth: RR 1.90, 95% CI [0.93, 3.88], 95% PI [0.34, 9.51], miscarriage: RR 1.78, 95% CI [0.88, 3.63], 95% PI [1.13, 4.16]). The main limitations include the potential for confounding due to use of aggregated data with variable degrees of adjustment. CONCLUSIONS Our results suggest that women with a history of stillbirth have a greater risk of future cardiovascular disease, T2DM, and renal morbidities. Women experiencing miscarriages, single or multiple, do not seem to have an altered risk.
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Affiliation(s)
- Florentia Vlachou
- Barts and the London School of Medicine and Dentistry, Queen Mary University of London, Whitechapel, London, United Kingdom
| | - Despoina Iakovou
- Barts and the London School of Medicine and Dentistry, Queen Mary University of London, Whitechapel, London, United Kingdom
| | - Jahnavi Daru
- Women’s Health Research Unit, Institute for Population Health, Queen Mary University of London, London, United Kingdom
| | - Rehan Khan
- Royal London Hospital, Department of Obstetrics & Gynaecology, Barts Health NHS Trust, London, United Kingdom
| | - Litha Pepas
- Barts Centre of Reproductive Medicine, Barts NHS Trust, London, United Kingdom
| | - Siobhan Quenby
- Division of Reproductive Health, Centre for Early Life, Warwick Medical School, University of Warwick, Coventry, United Kingdom
| | - Stamatina Iliodromiti
- Women’s Health Research Unit, Institute for Population Health, Queen Mary University of London, London, United Kingdom
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Khan M, Khan R, Islam SU, Khan A, Zhong Y, Awwad FA, Ismail EA. Provenance, diagenesis, and depositional environment of Miocene Kamlial Formation, Azad Jammu and Kashmir, Sub Himalayas, Pakistan: Evidences from field observations and petrography. Heliyon 2024; 10:e24309. [PMID: 38293448 PMCID: PMC10826154 DOI: 10.1016/j.heliyon.2024.e24309] [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: 05/20/2023] [Revised: 12/27/2023] [Accepted: 01/05/2024] [Indexed: 02/01/2024] Open
Abstract
Petrographical characterization and field observations were caried out to evaluate Kamlial Formation in Bagh district, Azad Jammu and Kashmir. Based on detailed petrography, the lithic arenite consisted of quartz (20-25%), feldspar (7-11%), rock fragments (20-37%), cementing materials (11-21%), and accessory minerals. Grains are mostly angular to subrounded and poorly to moderately sorted. The analysis revealed that the lithic arenite is mineralogically immature; also, the current activity during the time of deposition was low. Polycrystalline quartz indicates that the sandstone was derived from metamorphic source, while monocrystalline quartz indicates a granitic origin. Quartz having an angular shape suggests the source rock was near the depositional site, while quartz having a rounded shape represents long transportation. The presence of feldspar in the lithic arenite suggests the rocks were deposited at high relief or cold temperatures. Primary porosity in sandstone was reduced by calcite cements around the grain, while secondary porosity was developed by fracturing of quartz and feldspar. Tectonic uplift in the study area was demonstrated by fractured quartz and mica in thin sections. Field observations of various sedimentary structures were observed such as load casts, ripple marks, and mud cracks, etc. The presence of conglomerates and load casts in the study area indicates that the Kamlial sandstone was deposited by fluvial and shallow marine environment. Furthermore, the ripple marks indicate that the tidal flat environment controlled the deposition of the sediments.
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Affiliation(s)
- Musa Khan
- Key Laboratory of Metallogenic Prediction of Nonferrous Metals and Geological Environment Monitoring, Ministry of Education, School of Geosciences and Info-Physics, Central South University, Changsha 410083, China
| | - Rehan Khan
- Key Laboratory of Metallogenic Prediction of Nonferrous Metals and Geological Environment Monitoring, Ministry of Education, School of Geosciences and Info-Physics, Central South University, Changsha 410083, China
| | - Shams Ul Islam
- Institute of Geology, University of Azad Jammu and Kashmir, Muzaffarabad, Azad Jammu and Kashmir, Pakistan
| | - Asad Khan
- Department of Geology, FATA University, FR Kohat 26100, KP, Pakistan
| | - Yanmei Zhong
- School of Resource and Environmental Sciences, Wuhan University, Wuhan 430079, China
| | - Fuad A. Awwad
- Department of Quantitative analysis, College of Business Administration, King Saud University, P.O. Box 71115, Riyadh 11587, Saudi Arabia
| | - Emad A.A. Ismail
- Department of Quantitative analysis, College of Business Administration, King Saud University, P.O. Box 71115, Riyadh 11587, Saudi Arabia
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Vyawahare A, Ansari MM, Kumar A, Ahmad A, Mishra RK, Jori C, Nadeem A, Siddiqui N, Raza SS, Khan R. Enzyme targeted delivery of sivelestat loaded nanomicelle inhibits arthritic severity in experimental arthritis. Life Sci 2023; 334:122206. [PMID: 37879159 DOI: 10.1016/j.lfs.2023.122206] [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: 08/10/2023] [Revised: 10/21/2023] [Accepted: 10/22/2023] [Indexed: 10/27/2023]
Abstract
AIMS Rheumatoid arthritis (RA) is chronic inflammatory disorder mainly affects the lining of articular cartilage of synovial joints characterized by severe inflammation and joint damage. The expression of proteolytic enzymes like MMP-2 and Neutrophil Elastase (NE) worsens the RA condition. To address this concern, we have synthesized dual enzyme targeted chlorotoxin conjugated nanomicelles loaded with sivelestat as broad spectrum treatment for RA. MATERIALS AND METHODS Conjugation of the chlorotoxin over nanomicelle and incorporation of sivelestat in nanomicelle provide it dual targeting potential. The sivelestat loaded nanomicelle (SLM) evaluated for the drug release and in-vitro cytocompatibility. Further, investigated its in-vivo anti-arthritic potential on collagen-induced arthritis in wistar rats. KEY FINDINGS The microscopic observation of SLM showed spherical ball like appearance with size ranging from 190 to 230 nm. SLM showed good drug loading and encapsulation efficiency along with no cytotoxicity against healthy cell lines. In-vivo therapeutic assessment on collagen induced arthritis rat model showed potential chondroprotection. The microscopic visualization of articular cartilage by staining showed that it restores the cartilage integrity and lowers the expression of pro-inflammatory enzymes showed by Immunohistochemistry and Immunofluorescence. We observed that, it restrain the mediators of synovial inflammation by simultaneous inhibition of the proteolytic enzymes involved in swelling, cartilage destruction and joint damage which provides strong chondroprotection. SIGNIFICANCE We report that significant alleviation of inflammation and inhibition of proteolytic enzymes together might provide enhanced potential for the treatment and management of RA.
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Affiliation(s)
- Akshay Vyawahare
- Department of Chemical Biology, Institute of Nano Science and Technology, Sector 81, Knowledge city, Sahibzada Ajit Singh Nagar, Mohali, Punjab 140306, India
| | - Md Meraj Ansari
- Centre for Pharmaceutical Nanotechnology, Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research, S.A.S Nagar, Sector 67, Mohali, Punjab 160062, India
| | - Ajay Kumar
- Department of Chemical Biology, Institute of Nano Science and Technology, Sector 81, Knowledge city, Sahibzada Ajit Singh Nagar, Mohali, Punjab 140306, India
| | - Anas Ahmad
- Julia McFarlane Diabetes Research Centre (JMDRC) and Department of Microbiology, Immunology and Infectious Diseases, Snyder Institute for Chronic Diseases and Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta T2N 4N1, Canada
| | - Rakesh Kumar Mishra
- Department of Chemical Biology, Institute of Nano Science and Technology, Sector 81, Knowledge city, Sahibzada Ajit Singh Nagar, Mohali, Punjab 140306, India
| | - Chandrashekhar Jori
- Department of Chemical Biology, Institute of Nano Science and Technology, Sector 81, Knowledge city, Sahibzada Ajit Singh Nagar, Mohali, Punjab 140306, India
| | - Ahmed Nadeem
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Nahid Siddiqui
- Amity Institute of Biotechnology, Amity University, Noida 201303, India
| | - Syed Shadab Raza
- Laboratory for Stem Cell & Restorative Neurology, Department of Biotechnology, Era's Lucknow Medical College and Hospital, Sarfarazganj, Lucknow 226003, Uttar Pradesh, India
| | - Rehan Khan
- Department of Chemical Biology, Institute of Nano Science and Technology, Sector 81, Knowledge city, Sahibzada Ajit Singh Nagar, Mohali, Punjab 140306, India.
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Dar AH, Ahmad A, Kumar A, Gowri V, Jori C, Sartaliya S, K M N, Ali N, Bishnoi M, Khan R, Jayamurugan G. Superior Photophysical and Photosensitizing Properties of Nanoaggregates of Weakly Emissive Dyes for Use in Bioimaging and Photodynamic Therapy. Biomacromolecules 2023; 24:5438-5450. [PMID: 37856822 DOI: 10.1021/acs.biomac.3c00892] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2023]
Abstract
The development of luminescent dyes based on 1,1,4,4-tetracyanobuta-1,3-dienes (TCBDs) is an active research area, and a quantum yield (ΦF) of 7.8% has been achieved so far in cyclohexane by appending a fluorophore. Our novel method radically refines weakly emissive 2,3-disubstituted TCBD (phenyl-TCBD 1) (ΦF = 2.3% in CH3CN) into a water-soluble, biocompatible nanoformulation as highly emissive aggregates 1NPs ⊂ PF-127 with ΦF = 7.9% in H2O and without fluorophore conjugation. Characterization of 1NPs ⊂ PF-127 was carried out using various spectroscopic techniques, and its predominant size was found to be 80-100 nm according to transmission electron microscopy and dynamic light scattering techniques. Spectroscopic studies including Fourier transform infrared spectroscopy revealed that aggregated phenyl-TCBD particles were encapsulated in a nonluminescent triblock copolymer (PF-127)-based nanomicelles with the TCBD entrapment efficiency of 77%. With increasing water fraction, the phenyl-TCBD nanoaggregates exhibited a 3-fold higher quantum yield, a greater lifetime, and a red shift (155 nm). This remarkable enhancement in red emissivity enabled them to be used as a bioprobe for bioimaging applications and in photodynamic therapy to selectively target cancer cell lines with singlet oxygen generation capability (ΦΔ = 0.25). According to the MTT assay, compared to the native molecular form (1229 nM), the aggregated 1NPs ⊂ PF-127 (13.51 nM) exhibited dose-dependent cell death when exposed to light with 91-fold increased activity. The histoarchitectures of various vital organs (liver, kidneys, heart, lungs, and spleen) were intact when tested for in vivo biocompatibility. This study has significant implications for developing nonplanar push-pull chromophore-based dyes as biosensors and with potential applications beyond bioimaging.
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Affiliation(s)
- Arif Hassan Dar
- Energy Environment Unit, Institute of Nano Science and Technology, Knowledge City, Sector-81, Mohali, 140306 Punjab, India
| | - Anas Ahmad
- Julia McFarlane Diabetes Research Centre (JMDRC) and Department of Microbiology, Immunology and Infectious Diseases, Snyder Institute for Chronic Diseases and Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta T2N 4N1, Canada
| | - Ajay Kumar
- Chemical Biology Unit, Institute of Nano Science and Technology, Knowledge City, Sector-81, Mohali, 140306 Punjab, India
| | - Vijayendran Gowri
- Energy Environment Unit, Institute of Nano Science and Technology, Knowledge City, Sector-81, Mohali, 140306 Punjab, India
| | - Chandrashekhar Jori
- Chemical Biology Unit, Institute of Nano Science and Technology, Knowledge City, Sector-81, Mohali, 140306 Punjab, India
| | - Shaifali Sartaliya
- Energy Environment Unit, Institute of Nano Science and Technology, Knowledge City, Sector-81, Mohali, 140306 Punjab, India
| | - Neethu K M
- Energy Environment Unit, Institute of Nano Science and Technology, Knowledge City, Sector-81, Mohali, 140306 Punjab, India
| | - Nemat Ali
- Department of Pharmacology & Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Mahendra Bishnoi
- National Agri-Food Biotechnology Institute, Mohali, 140306 Punjab, India
| | - Rehan Khan
- Chemical Biology Unit, Institute of Nano Science and Technology, Knowledge City, Sector-81, Mohali, 140306 Punjab, India
| | - Govindasamy Jayamurugan
- Energy Environment Unit, Institute of Nano Science and Technology, Knowledge City, Sector-81, Mohali, 140306 Punjab, India
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12
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Khan R, Wieczorowski M, Damjanović D, Karim MR, Alnaser IA. Erosion-Corrosion Failure Analysis of a Mild Steel Nozzle Pipe in Water-Sand Flow. Materials (Basel) 2023; 16:7084. [PMID: 38005014 PMCID: PMC10672671 DOI: 10.3390/ma16227084] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 11/01/2023] [Accepted: 11/06/2023] [Indexed: 11/26/2023]
Abstract
Several leaks appeared in a mild steel (MS) pipe jet nozzle installed in a direct impact test rig after a few months of operation in erosive flow at the Centre for Erosion-Corrosion Research. The locations of perforation leaks were primarily upstream, but severe wall thinning was also noticed adjacent to the exit section. In this paper, a failure analysis was carried out on the leaking of a pipe jet nozzle, and the results are discussed in detail. The investigation carried out includes visual observation, scanning electron microscopy, 3D scanning, energy-dispersive spectroscopy, and laser profilometry measurements. In addition, numerical simulations based on computational fluid dynamics (CFD) and the discrete phase model (DPM) were conducted to investigate the root cause of the failure of leaks in the pipe jet nozzle. Further CFD-DPM simulations were performed on three different pipe jet designs for liquid-solid flow conditions, and were compared to find an alternative design to prevent the failure of the pipe jet nozzles. It was found that the increase in turbulence along with multiple impacts of particles on the wall generate leaks and cracks in the pipe jet nozzle. Moreover, the CFD-DPM showed a five-fold reduction in the maximum erosion rate; this was observed in the replacement of failed pipes with the proposed alternative nozzle pipe design featuring a chamfer reducer section. The CFD-DPM analysis of all geometric configurations showed that alteration of reducer section design has the greatest impact on erosive wear mitigation.
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Affiliation(s)
- Rehan Khan
- Department of Mechanical Engineering, College of Electrical and Mechanical Engineering, National University of Sciences and Technology, Islamabad 44000, Pakistan
| | - Michał Wieczorowski
- Faculty of Mechanical Engineering, Institute of Applied Mechanics, Poznan University of Technology, 3 Piotrowo St., 60-965 Poznan, Poland;
| | - Darko Damjanović
- Mechanical Engineering Faculty in Slavonski Brod, University of Slavonski Brod, Trg Ivane Brlić Mažuranić 2, 35 000 Slavonski Brod, Croatia;
| | - Mohammad Rezaul Karim
- Mechanical Engineering Department, College of Engineering, King Saud University, Riyadh 11421, Saudi Arabia
| | - Ibrahim A. Alnaser
- Mechanical Engineering Department, College of Engineering, King Saud University, Riyadh 11421, Saudi Arabia
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Waseem A, Khan AQ, Khan MA, Khan R, Uddin S, Boltze J, Raza SS. Unveiling the Therapeutic Potential of Non-Coding RNAs in Stroke-Induced Tissue Regeneration. Stem Cells 2023; 41:987-1005. [PMID: 37591309 DOI: 10.1093/stmcls/sxad062] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Accepted: 08/04/2023] [Indexed: 08/19/2023]
Abstract
Stroke is a major contributor to mortality and impairment on a global scale, with few effective treatments available. Aberrant expression of various non-coding RNAs (ncRNAs) has been identified after stroke onset, impacting neurogenesis, angiogenesis, apoptosis, and autophagy. The roles and mechanisms of ncRNAs hold great promise for future ischemic stroke treatments, as they could modify stroke impact and course on a well-controllable molecular level. Exploring the functions and underlying mechanisms of ncRNAs after stroke has the potential to unveil novel therapeutic targets for the treatment of stroke and may also pave the way toward novel and more precise diagnostic options for stroke and stroke outcomes. This review emphasizes the importance of ncRNAs in the treatment of stroke and their potential as therapeutic targets.
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Affiliation(s)
- Arshi Waseem
- Laboratory for Stem Cell & Restorative Neurology, Department of Biotechnology, Era's Lucknow Medical College Hospital, Era University, Sarfarazganj, Lucknow, India
| | - Abdul Quaiyoom Khan
- Translational Research Institute, Academic Health System, Hamad Medical Corporation, Doha, Qatar
| | - Mohsin Ali Khan
- Metabolic Unit, Department of Biotechnology, Era's Lucknow Medical College Hospital, Era University, Sarfarazganj, Lucknow, India
| | - Rehan Khan
- Chemical Biology Unit, Institute of Nano Science and Technology, Mohali, Punjab, India
| | - Shahab Uddin
- Translational Research Institute, Academic Health System, Hamad Medical Corporation, Doha, Qatar
| | - Johannes Boltze
- School of Life Sciences, The University of Warwick, Gibbet Hill Campus, Coventry CV4 7AL, UK
| | - Syed Shadab Raza
- Laboratory for Stem Cell & Restorative Neurology, Department of Biotechnology, Era's Lucknow Medical College Hospital, Era University, Sarfarazganj, Lucknow, India
- Department of Stem Cell Biology and Regenerative Medicine, Era's Lucknow Medical College Hospital, Era University, Sarfarazganj, Lucknow, India
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Kanika, Khan R. Functionalized nanomaterials targeting NLRP3 inflammasome driven immunomodulation: Friend or Foe. Nanoscale 2023; 15:15906-15928. [PMID: 37750698 DOI: 10.1039/d3nr03857b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/27/2023]
Abstract
The advancement in drug delivery systems in recent times has significantly enhanced therapeutic effects by enabling site-specific targeting through nanocarriers. These nanocarriers serve as invaluable tools for pharmacotherapeutic advancements against various disorders that enhance the effectiveness of encapsulated drugs by reducing their toxicity and increasing the efficacy of less potent drugs, thereby improving the therapeutic index. Inflammasomes, protein complexes located in the activated immune cell cytoplasm, regulate the activation of caspases involved in inflammation. However, aberrant activation of inflammasomes can result in uncontrolled tissue responses, contributing to the development of various diseases. Therefore, achieving a precise balance between inflammasome inhibition and activation is crucial for effectively treating inflammatory disorders through targeted functionalized nanocarriers. Despite the wealth of available data on the relevance of functionalized nanocarriers in inflammatory disorders, the nanotechnological potential to modulate inflammasomes has not been adequately explored. In this comprehensive review, we highlight the latest research on the modulation of the inflammasome cascade, both upregulating and downregulating its function, using nanocarriers in the context of inflammatory disorders. The utilization of nanocarriers as a therapeutic strategy holds immense potential for researchers aiming to effectively target and modulate inflammasomes in the treatment of inflammatory disorders, thus improving disease severity outcomes.
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Affiliation(s)
- Kanika
- Chemical Biology Unit, Institute of Nano Science and Technology, Knowledge City, Sector-81, 5 Sahibzada Ajit Singh Nagar, Punjab, Pin - 140306, India.
| | - Rehan Khan
- Chemical Biology Unit, Institute of Nano Science and Technology, Knowledge City, Sector-81, 5 Sahibzada Ajit Singh Nagar, Punjab, Pin - 140306, India.
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15
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Gorgey AS, Khalil RE, Carter W, Ballance B, Gill R, Khan R, Goetz L, Lavis T, Sima AP, Adler RA. Effects of two different paradigms of electrical stimulation exercise on cardio-metabolic risk factors after spinal cord injury. A randomized clinical trial. Front Neurol 2023; 14:1254760. [PMID: 37808500 PMCID: PMC10556465 DOI: 10.3389/fneur.2023.1254760] [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: 07/17/2023] [Accepted: 08/30/2023] [Indexed: 10/10/2023] Open
Abstract
Objective To examine the combined effects of neuromuscular electrical stimulation-resistance training (NMES-RT) and functional electrical stimulation-lower extremity cycling (FES-LEC) compared to passive movement training (PMT) and FES-LEC in adults with SCI on (1) oxygen uptake (VO2), insulin sensitivity and glucose disposal in adults with SCI; (2) Metabolic and inflammatory biomarkers; (3) skeletal muscle, intramuscular fat (IMF) and visceral adipose tissue (VAT) cross-sectional areas (CSAs). Materials and methods Thirty-three participants with chronic SCI (AIS A-C) were randomized to 24 weeks of NMES-RT + FES or PMT + FES. The NMES-RT + FES group underwent 12 weeks of evoked surface NMES-RT using ankle weights followed by an additional 12 weeks of progressive FES-LEC. The control group, PMT + FES performed 12 weeks of passive leg extension movements followed by an additional 12 weeks of FES-LEC. Measurements were performed at baseline (BL; week 0), post-intervention 1 (P1; week 13) and post-intervention 2 (P2; week 25) and included FES-VO2 measurements, insulin sensitivity and glucose effectiveness using the intravenous glucose tolerance test; anthropometrics and whole and regional body composition assessment using dual energy x-ray absorptiometry (DXA) and magnetic resonance imaging to measure muscle, IMF and VAT CSAs. Results Twenty-seven participants completed both phases of the study. NMES-RT + FES group showed a trend of a greater VO2 peak in P1 [p = 0.08; but not in P2 (p = 0.25)] compared to PMT + FES. There was a time effect of both groups in leg VO2 peak. Neither intervention elicited significant changes in insulin, glucose, or inflammatory biomarkers. There were modest changes in leg lean mass following PMT + FES group. Robust hypertrophy of whole thigh muscle CSA, absolute thigh muscle CSA and knee extensor CSA were noted in the NMES-RT + FES group compared to PMT + FES at P1. PMT + FES resulted in muscle hypertrophy at P2. NMES-RT + FES resulted in a decrease in total VAT CSA at P1. Conclusion NMES-RT yielded a greater peak leg VO2 and decrease in total VAT compared to PMT. The addition of 12 weeks of FES-LEC in both groups modestly impacted leg VO2 peak. The addition of FES-LEC to NMES-RT did not yield additional increases in muscle CSA, suggesting a ceiling effect on signaling pathways following NMES-RT. Clinical trial registration identifier NCT02660073.
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Affiliation(s)
- Ashraf S. Gorgey
- Spinal Cord Injury and Disorders, Richmond VA Medical Center, Richmond, VA, United States
- Department of Physical Medicine & Rehabilitation, Virginia Commonwealth University, Richmond, VA, United States
| | - Refka E. Khalil
- Spinal Cord Injury and Disorders, Richmond VA Medical Center, Richmond, VA, United States
| | - William Carter
- Department of Physical Medicine & Rehabilitation, Virginia Commonwealth University, Richmond, VA, United States
| | - Boyd Ballance
- Spinal Cord Injury and Disorders, Richmond VA Medical Center, Richmond, VA, United States
| | - Ranjodh Gill
- Endocrinology Service, Richmond VA Medical Center, Richmond, VA, United States
- Endocrine Division, School of Medicine, Virginia Commonwealth University, Richmond, VA, United States
| | - Rehan Khan
- Radiology Service, Richmond VA Medical Center, Richmond, VA, United States
| | - Lance Goetz
- Spinal Cord Injury and Disorders, Richmond VA Medical Center, Richmond, VA, United States
- Department of Physical Medicine & Rehabilitation, Virginia Commonwealth University, Richmond, VA, United States
| | - Timothy Lavis
- Spinal Cord Injury and Disorders, Richmond VA Medical Center, Richmond, VA, United States
- Department of Physical Medicine & Rehabilitation, Virginia Commonwealth University, Richmond, VA, United States
| | - Adam P. Sima
- Department of Biostatistics, School of Medicine, Virginia Commonwealth University, Richmond, VA, United States
| | - Robert A. Adler
- Endocrinology Service, Richmond VA Medical Center, Richmond, VA, United States
- Endocrine Division, School of Medicine, Virginia Commonwealth University, Richmond, VA, United States
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Kumar A, Ali A, Kanika, Vyawahare A, Ahmad A, Mishra RK, Ansari MM, Nadeem A, Siddiqui N, Raza SS, Khan R. Highly Biocompatible Smart Injectable Hydrogel for the Management of Rheumatoid Arthritis. ACS Biomater Sci Eng 2023; 9:5312-5321. [PMID: 37593880 DOI: 10.1021/acsbiomaterials.3c00514] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/19/2023]
Abstract
Rheumatoid arthritis (RA) is a chronic inflammatory disease that severely affects joints and restricts locomotion. Various treatment regimens are available for RA, providing short-term relief from pain, but long-term relief from the disease is still not available. Evidently, cytokines play a crucial role in the pathophysiology of the disease. However, aberrant immune responses, genetic dispositions, viral infections, or toxicants are some possible causative mediators of RA. The synovial fluid of rheumatoid arthritis patients encompass cytokines, especially osteoclastogenic cytokines, and invasion factors such as macrophage colony-stimulating factor (M-CSF) and the receptor activator of NF-κB ligand (RANKL). Moreover, tumor necrosis factor-α (TNF-α) and interleukins (IL-1, 6, and 17) intensify osteoclast differentiation and activation. Therefore, in order to restrict the cytokine expression, we used budesonide as a therapeutic lead and encapsulated it into a highly biocompatible hydrogel system. The hydrogel system developed by us is enzyme-responsive and provides sustained drug release flow over an extended period of time. This hydrogel is characterized by ζ-potential analysis, field-emission scanning electron microscopy (FE-SEM), and attenuated total reflectance-Fourier transform infrared (ATR-FTIR) spectroscopy, and it is further encapsulated with budesonide (glucocorticoids) for therapeutic purposes. Evidently, Bud-loaded ER-hydrogel showed improvement in joint physiology compared to the disease group and downregulated the inflammatory markers.
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Affiliation(s)
- Ajay Kumar
- Chemical Biology Unit, Institute of Nano Science and Technology, Sector-81, Knowledge City, Sahibzada Ajit Singh Nagar, Sahibzada Ajit Singh Nagar, Punjab 140306, India
| | - Aneesh Ali
- Chemical Biology Unit, Institute of Nano Science and Technology, Sector-81, Knowledge City, Sahibzada Ajit Singh Nagar, Sahibzada Ajit Singh Nagar, Punjab 140306, India
| | - Kanika
- Chemical Biology Unit, Institute of Nano Science and Technology, Sector-81, Knowledge City, Sahibzada Ajit Singh Nagar, Sahibzada Ajit Singh Nagar, Punjab 140306, India
| | - Akshay Vyawahare
- Chemical Biology Unit, Institute of Nano Science and Technology, Sector-81, Knowledge City, Sahibzada Ajit Singh Nagar, Sahibzada Ajit Singh Nagar, Punjab 140306, India
| | - Anas Ahmad
- Julia McFarlane Diabetes Research Centre (JMDRC), Department of Microbiology, Immunology and Infectious Diseases, Snyder Institute for Chronic Diseases, Hotchkiss Brain Institute, Cumming School of Medicine, Foothills Medical Centre, University of Calgary, Calgary, AB T2N 4N1, Canada
| | - Rakesh Kumar Mishra
- Chemical Biology Unit, Institute of Nano Science and Technology, Sector-81, Knowledge City, Sahibzada Ajit Singh Nagar, Sahibzada Ajit Singh Nagar, Punjab 140306, India
| | - Md Meraj Ansari
- Centre for Pharmaceutical Nanotechnology, Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research, S.A.S Nagar, Sector 67, Mohali, Punjab 160062, India
| | - Ahmed Nadeem
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Nahid Siddiqui
- Amity Institute of Biotechnology, Amity University, Noida 201303, India
| | - Syed Shadab Raza
- Department of Stem Cell Biology and Regenerative Medicine, Era University, Sarfarazganj, Lucknow 226003, India
| | - Rehan Khan
- Chemical Biology Unit, Institute of Nano Science and Technology, Sector-81, Knowledge City, Sahibzada Ajit Singh Nagar, Sahibzada Ajit Singh Nagar, Punjab 140306, India
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17
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Kumar V, Sakla R, Sharma N, Kanika, Khan R, Jose DA. Liposome Based Near-Infrared Sensors for the Selective Detection of Hydrogen Sulfide. Chempluschem 2023; 88:e202300243. [PMID: 37530569 DOI: 10.1002/cplu.202300243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 07/30/2023] [Accepted: 08/02/2023] [Indexed: 08/03/2023]
Abstract
Cyanine dye-based new amphiphilic compound NIR-Amp has been synthesised. NIR-Amp was embedded with phospholipids DOPC and DPPC to form liposomes based nanoscale chemical sensors NIR-Lip1 and NIR-Lip2. Here, two different phospholipids were used to demonstrate the influence of lipid structure, composition and fluidity on sensing of nanosensors. Both the probes show NIR absorption maximum at 790 nm and emission maximum at 815 nm. H2 S-triggered thiolation resulted a remarkable change in color from green to pale yellow. A decrease in UV-Vis absorption and emission in the NIR region was observed only with H2 S. NIR-Lip1 and NIR-Lip2 are highly selective for H2 S with a LOD of 0.57 μM and 1.24 μM, respectively. It was observed that in a solid-like gel state, NIR-Lip1 is slightly more sensitive towards H2 S than fluid-like NIR-Lip2. The H2 S sensing mechanism was confirmed by ESI-mass and infrared (IR) spectroscopic analysis. Based on the high sensitivity and selectivity, NIR-Lip1 was employed to detect H2 S in vegetable samples. Further, the probes are found to be non-toxic and established for H2 S fluorescence imaging in live cells.
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Affiliation(s)
- Vinod Kumar
- Department of Chemistry, National Institute of Technology Kurukshetra, Kurukshetra, 136119, Haryan, India
| | - Rahul Sakla
- Department of Chemistry, National Institute of Technology Kurukshetra, Kurukshetra, 136119, Haryan, India
- Department Chemical Biology Unit, Institute of Nano Science and Technology (INST), Mohali, Punjab, 140306, India
| | - Nancy Sharma
- Department of Chemistry, National Institute of Technology Kurukshetra, Kurukshetra, 136119, Haryan, India
| | - Kanika
- Department Chemical Biology Unit, Institute of Nano Science and Technology (INST), Mohali, Punjab, 140306, India
| | - Rehan Khan
- Department Chemical Biology Unit, Institute of Nano Science and Technology (INST), Mohali, Punjab, 140306, India
| | - D Amilan Jose
- Department of Chemistry, National Institute of Technology Kurukshetra, Kurukshetra, 136119, Haryan, India
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18
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Khan R. Some empirical observations on the correlates of quackery propensity in Sindh's populace. J PAK MED ASSOC 2023; 73:1887-1890. [PMID: 37817705 DOI: 10.47391/jpma.8053] [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: 10/12/2023]
Abstract
The current research provides an insight into what are the factors that influence people in Sindh to seek medical treatment from a quack. For this purpose an observational qualitative study was carried out between December 1, 2020 and June 30, 2022. The study used a purposive sampling technique, and the sample size was measured using data from anti-quackery campaigns run in 29 Sindh districts. To identify and collect data on quacks, a quackery- regulatory-intervention-induced questionnaire was used. The public's propensity for quacks is due to a number of factors, including: (1) simple and compounding ignorance among those seeking medical care; (2) quacks are more persuasive than doctors, (3) low doctor-to-patient ratios result in less interaction between the two, which dissatisfies the patients; (4) in urban areas, the general public is complacent and frequently consults the proximity facility without first verifying the qualifications of the healthcare provider; and (5) patients in rural areas consult a quack to avoid travelling long distances to access a functioning medical facility, the scarcity of doctors in those areas, and the high overall cost of doctor visits. However, people end up paying more for healthcare services from quacks for whatever reason because they receive incorrect treatment for non-existent health conditions.
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Affiliation(s)
- Rehan Khan
- Sindh Healthcare Commission, Karachi, Pakistan
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19
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Khan R, Jori C, Ansari MM, Ahmad A, Nadeem A, Siddiqui N, Sultana S. α-Terpineol Mitigates Dextran Sulfate Sodium-Induced Colitis in Rats by Attenuating Inflammation and Apoptosis. ACS Omega 2023; 8:29794-29802. [PMID: 37599911 PMCID: PMC10433518 DOI: 10.1021/acsomega.3c04317] [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: 06/17/2023] [Accepted: 07/20/2023] [Indexed: 08/22/2023]
Abstract
Ulcerative colitis (UC) is one of the major inflammatory disorders of the gastrointestinal tract. α-Terpineol (αTL) is naturally present in several plants, and it belongs to the monoterpenes category. αTL possesses various pharmacological properties such as antioxidant, antibacterial, antifungal, anticancer, and antiulcer activities. Importantly, αTL has been reported to possess potent anti-inflammatory effects also. In this study, we hypothesize that αTL may have protective effects against dextran sodium sulfate (DSS)-induced colitis in Wistar rats. Animals were randomly allocated to 3 groups of 6 rats each. In group III, αTL was administered at a dose of 50 mg/kg b. wt. orally from days 1 to 14, while in groups II and III, 4% DSS in drinking water was given to rats ad libitum from the 7th to 14th days. After 24 h of the last dose of αTL, all animals were euthanized. αTL administration reduced the DSS-induced colonic disease activity index, tissue damage, and goblet cell disintegration. αTL suppressed the orchestration of mast cells in the inflamed colon, enhanced the immunostaining of NF-kB-p65, COX-2, iNOS, p53, caspase-9, and cleaved caspase-3, and suppressed the immunostaining of connexin-43, survivin, and Bcl-2. The activities of caspases-9 and -3 were reduced significantly by αTL pretreatment, as also confirmed by calorimetric assays. Moreover, αTL significantly attenuated the nitric oxide level and myeloperoxidase activity. Histological results further support the fact that αTL reduced DSS-induced colonic damage and reduced inflammatory cell infiltration. Overall, our findings suggest that αTL has strong protective effects against DSS-induced colitis by mitigating inflammatory and apoptotic responses.
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Affiliation(s)
- Rehan Khan
- Chemical
Biology Unit, Institute of Nano Science
and Technology, Knowledge City, Sector-81, Mohali 140306, Punjab, India
| | - Chandrashekhar Jori
- Chemical
Biology Unit, Institute of Nano Science
and Technology, Knowledge City, Sector-81, Mohali 140306, Punjab, India
| | - Md. Meraj Ansari
- Centre
for Pharmaceutical Nanotechnology, Department of Pharmaceutics, National Institute of Pharmaceutical Education and
Research, S.A.S Nagar,
Sector 67, Mohali 160062, Punjab, India
| | - Anas Ahmad
- Julia
McFarlane Diabetes Research Centre (JMDRC) and Department of Microbiology,
Immunology and Infectious Diseases, Snyder Institute for Chronic Diseases
and Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta T2N 4N1, Canada
| | - Ahmed Nadeem
- Department
of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Nahid Siddiqui
- Amity
Institute of Biotechnology, Amity University, Noida 201303, India
| | - Sarwat Sultana
- Department
of Medical Elementology and Toxicology, Jamia Hamdard, New Delhi 110062, India
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20
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Kumar A, Kanika, Kumar V, Ahmad A, Mishra RK, Nadeem A, Siddiqui N, Ansari MM, Raza SS, Kondepudi KK, Khan R. Colon-Adhering Delivery System with Inflammation Responsiveness for Localized Therapy of Experimental Colitis. ACS Biomater Sci Eng 2023; 9:4781-4793. [PMID: 37497615 DOI: 10.1021/acsbiomaterials.3c00480] [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: 07/28/2023]
Abstract
Ulcerative colitis (UC) is a chronic inflammation-related disease that severely affects the colon and rectum regions. A variety of therapy regimens are used for the treatment of UC. Clinically, therapeutic enema is the choice of therapy for UC patients. Irrespective of on-site administration, the major limitation of therapeutic enemas is the dispossession of the medicine followed by low drug availability for the therapeutic action. In our present work, we have developed an enzyme-responsive injectable hydrogel (ER-hydrogel) to overcome the limitations of therapeutic enema. The hydrogels possess two major advantages, which are being exploited for therapeutic drug delivery in UC: prolonged retention and enzyme responsiveness. The former is one of the prominent advantages of hydrogel compared to free drug enema and the latter controls the release of the drug or provides drug release on-demand. The ER-hydrogel was formulated by the heat-cool method and for therapeutic purposes, a corticosteroid drug, budesonide (Bud), was encapsulated into the ER-hydrogel and evaluated for its various physicochemical and therapeutic potentials in dextran sodium sulfate (DSS)-induced UC. In vitro and ex vivo adhesion studies confirm the retention or mucoadhesive nature of the ER-hydrogel, and the upsurge in Bud release from the Bud-loaded ER-hydrogel upon the addition of esterase enzyme confirms the enzyme-mediated drug release from the ER-hydrogel. Moreover, Bud-loaded ER-hydrogel exhibited promising results in alleviating the disease activity index of UC, and restored the length of the colon, which is the main hallmark of UC. In terms of the health of the colon tissue, the Bud-loaded ER-hydrogel restored the colonic tissue damage, as seen in the H&E-stained, AB-NR-stained, and HID-AB-stained colon sections. Finally, the Bud-loaded ER-hydrogel also markedly subsided the IL-1β, TNF-α, MPO, and nitrite levels in serum and colon tissues. Thus, the fabricated Bud-loaded ER-hydrogel possesses appreciable translational potential due to its ability to significantly ameliorate inflammatory changes compared to naive or water-based therapeutic enema in acute experimental colitis in mice.
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Affiliation(s)
- Ajay Kumar
- Chemical Biology Unit, Institute of Nano Science and Technology, Sector-81, Knowledge City, Sahibzada Ajit Singh Nagar, Mohali, Punjab 140306, India
| | - Kanika
- Chemical Biology Unit, Institute of Nano Science and Technology, Sector-81, Knowledge City, Sahibzada Ajit Singh Nagar, Mohali, Punjab 140306, India
| | - Vibhu Kumar
- National Agri-Food Biotechnology Institute, Mohali, Punjab 140306, India
| | - Anas Ahmad
- Julia McFarlane Diabetes Research Centre (JMDRC) and Department of Microbiology, Immunology and Infectious Diseases, Snyder Institute for Chronic Diseases and Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta T2N 4N1, Canada
| | - Rakesh Kumar Mishra
- Chemical Biology Unit, Institute of Nano Science and Technology, Sector-81, Knowledge City, Sahibzada Ajit Singh Nagar, Mohali, Punjab 140306, India
| | - Ahmed Nadeem
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Nahid Siddiqui
- Amity Institute of Biotechnology, Amity University, Noida 201303, India
| | - Md Meraj Ansari
- Centre for Pharmaceutical Nanotechnology, Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research, S.A.S Nagar, Sector 67, Mohali, Punjab 160062, India
| | - Syed Shadab Raza
- Department of Stem Cell Biology and Regenerative Medicine, Era University, Sarfarazganj, Lucknow 226003, India
| | | | - Rehan Khan
- Chemical Biology Unit, Institute of Nano Science and Technology, Sector-81, Knowledge City, Sahibzada Ajit Singh Nagar, Mohali, Punjab 140306, India
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21
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Khan R. Causes And Consequences Of The Shortage Of Physicians In Sindh, Pakistan: A Local Perspective. J PAK MED ASSOC 2023; 73:1693-1699. [PMID: 37697763 DOI: 10.47391/jpma.7593] [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: 09/13/2023]
Abstract
The narrative review was designed to investigate potential factors that contribute to the shortage of primary care and specialty care physician workforce in Sindh, Pakistan, and how the disparity contributes to the proliferation of medical quackery across the province. There are serious consequences for the patients, putting additional strain on Sindh's healthcare system. Pakistan is one of the many countries where the demand for doctors is outpacing the supply. The province of Sindh lacks the medical personnel necessary to address its healthcare needs. Since there is a greater need than supply of general practitioners and specialists, there may be a growing gap between the healthcare workforce and patient care which may reinforce mounting physician shortage in the future due to factors, such as an ageing physician population, an escalating general population, and the fact that many doctors are nearing retirement age.
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Affiliation(s)
- Rehan Khan
- Sindh Healthcare Commission, Karachi, Pakistan
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22
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Bhattacharya S, Prajapati BG, Ali N, Mohany M, Aboul-Soud MAM, Khan R. Therapeutic Potential of Methotrexate-Loaded Superparamagnetic Iron Oxide Nanoparticles Coated with Poly(lactic- co-glycolic acid) and Polyethylene Glycol against Breast Cancer: Development, Characterization, and Comprehensive In Vitro Investigation. ACS Omega 2023; 8:27634-27649. [PMID: 37546601 PMCID: PMC10398847 DOI: 10.1021/acsomega.3c03430] [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: 05/17/2023] [Accepted: 07/11/2023] [Indexed: 08/08/2023]
Abstract
Novel superparamagnetic iron oxide nanoparticles (SPIONs) of Methotrexate (MTX) were developed using supercritical liquid technology and optimized with a Box-Behnken design in order to assess its potential as a candidate for the treatment of breast cancer. MTX-SPIONs coated with poly(lactic-co-glycolic acid)-polyethylene glycol 400 had an aggregate size of 500 nm and an encapsulation efficiency of 46.8 ± 3.9%. The Fourier-transformed infrared spectroscopy analysis revealed a shift in the main bands due to intermolecular hydrogen bonds, whereas the differential scanning calorimetry analysis revealed the absence of the MTX melting endotherm, indicating complete encapsulation with oxide nanoparticles. The zeta potential results indicated a value of 4.98 mV, whereas the in vitro release study revealed an initial burst release followed by a considerable release of 35.1 ± 2.78% after 12 h. Using flow cytometry, control, MTX, and MTX-SPIONs were evaluated for apoptosis, with MTX-SPIONs exhibiting greater apoptosis than the control group and MTX. In addition, MTX-SPIONs inhibited cell division and content organization while substantially increasing the proportion of cells in the G1 and G2 phases relative to the control group. MTX-SPIONs exhibited prolonged anticancer effects against MCF-7 cell lines compared to MTX alone, indicating that SPION-delivered chemotherapeutics may increase cytotoxicity. The medication was stable with low encapsulated drug loss, suggesting that the supercritical liquid technology-based method is a promising way for generating drug-polymer magnetic composite nanoparticles for cancer treatment.
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Affiliation(s)
- Sankha Bhattacharya
- School
of Pharmacy & Technology Management, SVKM’S NMIMS Deemed-to-be University, Shirpur, Maharashtra 425405, India
| | - Bhupendra G Prajapati
- Shree
S. K. Patel College of Pharmaceutical Education and Research, Ganpat University, Kherva 384012, India
| | - Nemat Ali
- Department
of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Mohamed Mohany
- Department
of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Mourad A. M. Aboul-Soud
- Department
of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Saud University, Riyadh 11433, Saudi Arabia
| | - Rehan Khan
- Public
Health Research Institute, Rutgers, New
Jersey Medical School, Newark, New Jersey 07103; United States
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23
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Khan R, Hodges BD, Martimianakis MA. When I say … burnout. Med Educ 2023; 57:704-705. [PMID: 37051872 DOI: 10.1111/medu.15088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 02/28/2023] [Accepted: 03/28/2023] [Indexed: 06/19/2023]
Abstract
In the world of wellness, 'burnout' might as well be a God term. But what do we really mean when we say, "I'm burned out." And is this one little word enough?
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Affiliation(s)
- R Khan
- Institute of Medical Sciences, University of Toronto, Toronto, Canada
| | - B D Hodges
- Temerty Faculty of Medicine, University of Toronto, Toronto, Canada
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24
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Chao S, Khan R, Lieberman J, Buren M. Propofol-induced myoclonus during maintenance of anaesthesia. Anaesth Rep 2023; 11:e12253. [PMID: 37937281 PMCID: PMC10626004 DOI: 10.1002/anr3.12253] [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] [Accepted: 10/06/2023] [Indexed: 11/09/2023] Open
Abstract
Myoclonus is a known side effect of propofol and can interfere with surgery and possibly precipitate patient injury. Here, we report a 23-year-old patient undergoing an L5 osteoblastoma resection with a predominantly propofol-based anaesthetic who developed intra-operative myoclonus. Other adjuncts included ketamine, lidocaine and fentanyl infusions. The myoclonus did not improve after deepening the anaesthetic with propofol, opioid boluses or discontinuation of the lidocaine infusion. The myoclonus ceased after reducing the propofol infusion and increasing the ketamine and opioid infusions. The remainder of the intra-operative course was uneventful. This report details our intra-operative management of propofol-induced cortical reflex myoclonus and discusses our institution's experience with treating this phenomenon.
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Affiliation(s)
- S Chao
- Department of Anesthesia and Perioperative Care University of California San Francisco San Francisco California USA
| | - R Khan
- Department of Anesthesia and Perioperative Care University of California San Francisco San Francisco California USA
| | - J Lieberman
- Department of Anesthesia and Perioperative Care University of California San Francisco San Francisco California USA
| | - M Buren
- Department of Anesthesia and Perioperative Care University of California San Francisco San Francisco California USA
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25
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Jori C, Chaudhary AA, Rashid S, Ali MAM, Alawam AS, Haouala F, Khan R. Biomaterial-based strategies for immunomodulation in IBD: current and future scenarios. J Mater Chem B 2023. [PMID: 37249518 DOI: 10.1039/d3tb00276d] [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: 05/31/2023]
Abstract
Instinctive gastrointestinal inflammatory conditions with persistent intestinal inflammation are known as "inflammatory bowel diseases" (IBDs). IBDs are growing progressively common throughout the world although it is still unclear what causes them. IBDs that cause recurrent, intermittent, and disburse inflammatory responses, may also have systemic symptoms such as ulcerative colitis and Crohn's disease. It has been discovered that a number of medications, including antibiotics, corticosteroids, and immune-suppressants, can promote mucous and damaged epithelial restoration. The incidences of general and specific therapy failure in IBD continue to climb, even though the availability of advanced biologics including anti-interleukins, anti-integrins, anti-tumor necrosis factor (anti-TNF), and small molecules such as tofacitinib exist. Management therapies that are currently being researched include specifically JAK (janus kinase) inhibitors, anti-IL (anti-interleukin) (IL-12, IL23), and leukocyte inhibitors such as sphingosine-1-phosphate receptors. Clinical treatments can have various adverse effects. In order to give pharmacological drugs to the disease-specific sites with improved efficacy and fewer complications, innovative frameworks centered on biomaterials are needed. We provide an outlook on the current state of several biomaterials used to treat IBD. This article comprehensively addresses numerous microparticles, nanoparticles, and hydrogels that have recently been made from natural bio-polymers and lipids. To support colon-specific target delivery and steady release of medications during IBD therapies, these various biomaterial-based monotherapies could be employed as efficient drug delivery systems.
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Affiliation(s)
- Chandrashekhar Jori
- Chemical Biology Unit, Institute of Nano Science and Technology, Knowledge, City, Sector-81, Mohali-140306, Punjab, India.
| | - Anis Ahmad Chaudhary
- Department of Biology, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh, Saudi Arabia
| | - Summya Rashid
- Department of Pharmacology & Toxicology, College of Pharmacy, Prince Sattam Bin Abdulaziz University, P.O. Box 173, Al-Kharj 11942, Saudi Arabia
| | - Mohamed A M Ali
- Department of Biology, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh, Saudi Arabia
- Department of Biochemistry, Faculty of Science, Ain Shams University, Abbassia, 11566, Cairo, Egypt
| | - Abdullah S Alawam
- Department of Biology, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh, Saudi Arabia
| | - Faouzi Haouala
- Department of Biology, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh, Saudi Arabia
| | - Rehan Khan
- Chemical Biology Unit, Institute of Nano Science and Technology, Knowledge, City, Sector-81, Mohali-140306, Punjab, India.
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26
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Prakash R, Vyawahare A, Sakla R, Kumari N, Kumar A, Ansari MM, Jori C, Waseem A, Siddiqui AJ, Khan MA, Robertson AAB, Khan R, Raza SS. NLRP3 Inflammasome-Targeting Nanomicelles for Preventing Ischemia-Reperfusion-Induced Inflammatory Injury. ACS Nano 2023; 17:8680-8693. [PMID: 37102996 DOI: 10.1021/acsnano.3c01760] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Ischemia-reperfusion (I/R) injury is a disease process that affects several vital organs. There is widespread agreement that the NLRP3 inflammasome pathway plays a crucial role in the development of I/R injury. We have developed transferrin-conjugated, pH-responsive nanomicelles for the entrapment of MCC950 drug. These nanomicelles specifically bind to the transferrin receptor 1 (TFR1) expressed on the cells of the blood-brain barrier (BBB) and thus help the cargo to cross the BBB. Furthermore, the therapeutic potential of nanomicelles was assessed using in vitro, in ovo, and in vivo models of I/R injury. Nanomicelles were injected into the common carotid artery (CCA) of a middle cerebral artery occlusion (MCAO) rat model to achieve maximum accretion of nanomicelles into the brain as blood flows toward the brain in the CCA. The current study reveals that the treatment with nanomicelles significantly alleviates the levels of NLRP3 inflammasome biomarkers which were found to be increased in oxygen-glucose deprivation (OGD)-treated SH-SY5Y cells, the I/R-damaged right vitelline artery (RVA) of chick embryos, and the MCAO rat model. The supplementation with nanomicelles significantly enhanced the overall survival of MCAO rats. Overall, nanomicelles exerted therapeutic effects against I/R injury, which might be due to the suppression of the activation of the NLRP3 inflammasome.
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Affiliation(s)
- Ravi Prakash
- Laboratory for Stem Cell & Restorative Neurology, Department of Biotechnology, Era's Lucknow Medical College and Hospital, Era University, Sarfarazganj, Lucknow 226003, India
| | - Akshay Vyawahare
- Chemical Biology Unit, Institute of Nano Science and Technology, Mohali, Punjab 140306, India
| | - Rahul Sakla
- Chemical Biology Unit, Institute of Nano Science and Technology, Mohali, Punjab 140306, India
| | - Neha Kumari
- Laboratory for Stem Cell & Restorative Neurology, Department of Biotechnology, Era's Lucknow Medical College and Hospital, Era University, Sarfarazganj, Lucknow 226003, India
| | - Ajay Kumar
- Chemical Biology Unit, Institute of Nano Science and Technology, Mohali, Punjab 140306, India
| | - Md Meraj Ansari
- Centre for Pharmaceutical Nanotechnology, Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research, S.A.S Nagar, Sector 67, Mohali, Punjab 160062, India
| | - Chandrashekhar Jori
- Chemical Biology Unit, Institute of Nano Science and Technology, Mohali, Punjab 140306, India
| | - Arshi Waseem
- Laboratory for Stem Cell & Restorative Neurology, Department of Biotechnology, Era's Lucknow Medical College and Hospital, Era University, Sarfarazganj, Lucknow 226003, India
| | - Abu Junaid Siddiqui
- Laboratory for Stem Cell & Restorative Neurology, Department of Biotechnology, Era's Lucknow Medical College and Hospital, Era University, Sarfarazganj, Lucknow 226003, India
| | | | - Avril A B Robertson
- School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Rehan Khan
- Chemical Biology Unit, Institute of Nano Science and Technology, Mohali, Punjab 140306, India
| | - Syed Shadab Raza
- Laboratory for Stem Cell & Restorative Neurology, Department of Biotechnology, Era's Lucknow Medical College and Hospital, Era University, Sarfarazganj, Lucknow 226003, India
- Department of Stem Cell Biology and Regenerative Medicine, Era's Lucknow Medical College Hospital, Era University, Sarfarazganj, Lucknow 226003, India
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Waseem A, Rashid S, Rashid K, Khan MA, Khan R, Haque R, Seth P, Raza SS. Insight into the transcription factors regulating Ischemic Stroke and Glioma in Response to Shared Stimuli. Semin Cancer Biol 2023; 92:102-127. [PMID: 37054904 DOI: 10.1016/j.semcancer.2023.04.006] [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: 11/23/2022] [Revised: 03/28/2023] [Accepted: 04/09/2023] [Indexed: 04/15/2023]
Abstract
Cerebral ischemic stroke and glioma are the two leading causes of patient mortality globally. Despite physiological variations, 1 in 10 people who have an ischemic stroke go on to develop brain cancer, most notably gliomas. In addition, glioma treatments have also been shown to increase the risk of ischemic strokes. Stroke occurs more frequently in cancer patients than in the general population, according to traditional literature. Unbelievably, these events share multiple pathways, but the precise mechanism underlying their co-occurrence remains unknown. Transcription factors (TFs), the main components of gene expression programmes, finally determine the fate of cells and homeostasis. Both ischemic stroke and glioma exhibit aberrant expression of a large number of TFs, which are strongly linked to the pathophysiology and progression of both diseases. The precise genomic binding locations of TFs and how TF binding ultimately relates to transcriptional regulation remain elusive despite a strong interest in understanding how TFs regulate gene expression in both stroke and glioma. As a result, the importance of continuing efforts to understand TF-mediated gene regulation is highlighted in this review, along with some of the primary shared events in stroke and glioma.
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Affiliation(s)
- Arshi Waseem
- Laboratory for Stem Cell & Restorative Neurology, Department of Biotechnology, Era's Lucknow Medical College and Hospital, Era University, Sarfarazganj, Lucknow-226003, India
| | - Sumaiya Rashid
- Department of Pharmacology & Toxicology, College of Pharmacy, Prince Sattam Bin Abdulaziz University, P.O. Box 173, Al-Kharj 11942, Saudi Arabia
| | - Khalid Rashid
- Department of Cancer Biology, Vontz Center for Molecular Studies, Cincinnati, OH 45267-0521
| | | | - Rehan Khan
- Chemical Biology Unit, Institute of Nano Science and Technology, Knowledge City,Mohali, Punjab 140306, India
| | - Rizwanul Haque
- Department of Biotechnology, Central University of South Bihar, Gaya -824236, India
| | - Pankaj Seth
- Molecular and Cellular Neuroscience, Neurovirology Section, National Brain Research Centre, Manesar, Haryana-122052, India
| | - Syed Shadab Raza
- Laboratory for Stem Cell & Restorative Neurology, Department of Biotechnology, Era's Lucknow Medical College and Hospital, Era University, Sarfarazganj, Lucknow-226003, India; Department of Stem Cell Biology and Regenerative Medicine, Era's Lucknow Medical College Hospital, Era University, Sarfarazganj, Lucknow-226003, India
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Nandi D, Gajarski R, Zhao H, Tully K, Cantor R, Birnbaum B, Zangwill S, Khan R, Godown J, Kirklin J, Friedland-Little J. Impact of Anti-HLA Antibody Desensitization Strategies in Pediatric Heart Transplant Recipients: A PHTS-PHIS Linkage Analysis. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.102] [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: 04/05/2023] Open
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Staron-Ehlinger M, Beasley G, Hardin T, Baker J, Khan R. Association Between Donor-Derived Cell-Free DNA Levels and Cardiac Pressures in Pediatric Heart Transplant Recipients. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.1334] [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: 04/05/2023] Open
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Mishra RK, Ahmad A, Kumar A, Ali A, Kanika, Jori C, Tabrez S, Zughaibi TA, Almashjary MN, Raza SS, Khan R. Cortisone-loaded stearoyl ascorbic acid based nanostructured lipid carriers alleviate inflammatory changes in DSS-induced colitis. Biomater Adv 2023; 148:213383. [PMID: 36958119 DOI: 10.1016/j.bioadv.2023.213383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 02/15/2023] [Accepted: 03/10/2023] [Indexed: 03/17/2023]
Abstract
Ulcerative colitis is a chronic inflammatory disease which poorly affects the colon and spreads toward the rectum over time. Cortisone (CRT) is a corticosteroid clinically used for the management of inflammatory diseases like colitis and other inflammatory bowel diseases. Due to some physicochemical properties' cortisone has limited potency in clinics. To overcome drug-related problems, we successfully prepared lipid nanocarriers with generally regarded as safe (GRAS) materials approved by USFDA. The present study aimed to assess the therapeutic efficacy of CRT-loaded 6-o-stearoyl ascorbic acid (SAA) nanostructured lipid carriers (NLCs) against DSS-induced colitis mice. Formulation and characterizations of reported nanostructured lipid carrier were performed according to our previously optimized parameters. The average hydrodynamic diameter of NLCs was 182 nm as measured by DLS with 81.14 % encapsulation efficacy. TEM, AFM and SEM images analysis confirmed its spherical appearance. hTERT-BJ cells viability up to a dose of 500 μg/ml shows cytocompatible characteristics of blank NLCs. CRT-loaded NLCs treatment normalizes physically observed parameters such as disease activity index, weight variation etc. These NLCs were able to significantly reduce the severity of colitis in terms of colon histoarchitecture, regaining of the goblet cells, mucins secretions, inhibition of proinflammatory cytokines etc. Treatment with CRT-loaded NLCs effectively downregulated the overexpression of inflammatory enzymes like cyclooxygenase-2 (COX-2), Inducible nitric oxide synthase (iNOS) etc. The results of this study concluded that these CRT-encapsulated NLCs efficiently manage the disease severity induced by DSS.
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Affiliation(s)
- Rakesh Kumar Mishra
- Institute of Nano Science and Technology, Habitat Centre, Phase - 10, Sector 64, Mohali, Punjab 160062, India
| | - Anas Ahmad
- Julia McFarlane Diabetes Research Centre (JMDRC), Department of Microbiology, Immunology and Infectious Diseases, Snyder Institute for Chronic Diseases, Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta T2N 4N1, Canada
| | - Ajay Kumar
- Institute of Nano Science and Technology, Habitat Centre, Phase - 10, Sector 64, Mohali, Punjab 160062, India
| | - Aneesh Ali
- Institute of Nano Science and Technology, Habitat Centre, Phase - 10, Sector 64, Mohali, Punjab 160062, India
| | - Kanika
- Institute of Nano Science and Technology, Habitat Centre, Phase - 10, Sector 64, Mohali, Punjab 160062, India
| | - Chandrashekhar Jori
- Institute of Nano Science and Technology, Habitat Centre, Phase - 10, Sector 64, Mohali, Punjab 160062, India
| | - Shams Tabrez
- 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
| | - Torki A Zughaibi
- 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
| | - Majed N Almashjary
- Department of Medical Laboratory Sciences, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, 21589, Saudi Arabia; Hematology Research Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah 21589, Saudi Arabia; Animal House Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Syed Shadab Raza
- Laboratory for Stem Cell and Restorative Neurology, Department of Biotechnology, Era's Lucknow Medical College Hospital, Sarfarazganj, Lucknow 226003, India
| | - Rehan Khan
- Institute of Nano Science and Technology, Habitat Centre, Phase - 10, Sector 64, Mohali, Punjab 160062, India.
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Khan R, Kuenzig E, Tang A, Im J, Widdifield J, McCurdy J, Kaplan G, Benchimol E. A177 RISK OF VENOUS THROMBOEMBOLISM IN COVID-19 PATIENTS WITH INFLAMMATORY BOWEL DISEASE: A POPULATION-BASED MATCHED COHORT STUDY. J Can Assoc Gastroenterol 2023. [PMCID: PMC9991269 DOI: 10.1093/jcag/gwac036.177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/09/2023] Open
Abstract
Background Venous thromboembolism (VTE), is associated with significant morbidity and mortality. Inflammation increases the risk of VTE, and it is a well-recognised complication of both inflammatory bowel disease (IBD) and COVID-19. Purpose To compare the risk of VTE among individuals with and without IBD following a positive COVID-19 test. Method Using health administrative data from Ontario, Canada we conducted a retrospective matched cohort study.All Ontario residents with a positive SARS-CoV-2 PCR test between January 1,2020 and December 30,2021 who had been diagnosed with IBD prior to their COVID-19 infection (identified using a validated algorithm) were matched to 5 individuals without IBD based on year of birth, sex, mean neighbourhood income quintile, date of positive COVID-19 test, and rural/urban residence. Individuals with a cancer diagnosis in the 5 years prior to their first COVID-19 positive test were excluded. Individuals were followed from positive COVID-19 PCR test until VTE event, death, migration out of Ontario or March 31, 2022.VTEs were identified from emergency department or hospitalization data using ICD-10 codes. Incidence rate of VTEs among individuals with IBD were assessed at 1, 6 and 12 months. Proportional cause-specific hazards models compared the risk of VTEs in people with and without IBD, treating death as a competing risk and controlling for vaccination status (2nd dose ≥14 days prior to positive COVID-19 test) and a history of VTE (VTE in the 5 years prior to infection). Result(s) There were 4293 people with IBD (44% Crohn’s disease, mean age ±SD 46.1±17.2 y) matched to 20,207 with out IBD (mean age 45.3±16.8 y) with a positive SARS-CoV-2 PCR test. Within 1 month of a positive COVID-19 test, the crude incidence rate of VTE in individuals with IBD was 4.77(95%CI, 4.75-4.80) per 100,000 person-days compared to 8.25(95%CI, 8.20-8.30) per 100,000 among people without IBD.Within 6 months, these rates were 1.86(95%CI, 1.86-1.87) and 2.12(95%CI, 2.11-2.12) per 100,000 person-days among people with and without IBD, respectivley. Within 12 months, these rates were 1.59(95% CI, 1.58-1.59) and 1.42(95% CI, 1.42-1.42) per 100,000 person-days among people with and without IBD, respectively.After adjusting for vaccination status and history of VTE there was no difference in the risk of VTE for people with and without IBD (HR 1.08, 95%CI, 0.64 to 1.83). Conclusion(s) IBD patients with COVID-19 were not more likely to experience a VTE infection compared with the general popluation. The risk of VTE was highest soon after COVID-19 and declined thereafter. Please acknowledge all funding agencies by checking the applicable boxes below None Disclosure of Interest None Declared
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Affiliation(s)
- R Khan
- SickKids Inflammatory Bowel Disease Centre, Division of Gastroenterology, Hepatology and Nutrition, Department of Paediatrics, The Hospital for Sick Children, University of Toronto,ICES
| | - E Kuenzig
- Child Health Evaluative Sciences, SickKids Research Institute
| | - A Tang
- Child Health Evaluative Sciences, SickKids Research Institute
| | - J Im
- Child Health Evaluative Sciences, SickKids Research Institute
| | - J Widdifield
- ICES,Institute of Health Policy, Management and Evaluation, University of Toronto
| | - J McCurdy
- Department of Medicine, University of Ottawa, Ottawa, Canada
| | - G Kaplan
- Department of Medicine and Community Health Sciences, University of Calgary, Toronto, Canada
| | - E Benchimol
- SickKids Inflammatory Bowel Disease Centre, Division of Gastroenterology, Hepatology and Nutrition, Department of Paediatrics, The Hospital for Sick Children, University of Toronto,ICES,Child Health Evaluative Sciences, SickKids Research Institute,Institute of Health Policy, Management and Evaluation, University of Toronto
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Fujiyoshi MRA, Fujiyoshi Y, Gimpaya N, Bechara R, Jeyalingam T, Calo NC, Forbes N, Khan R, Atalla M, Toshimori A, Shimamura Y, Tanabe M, Mosko J, Inoue H, Grover S. A114 UNIFIED MAGNIFYING ENDOSCOPIC CLASSIFICATION (UMEC) FOR GASTROINTESTINAL LESIONS: A NORTH AMERICAN EDUCATION STUDY. J Can Assoc Gastroenterol 2023. [PMCID: PMC9991233 DOI: 10.1093/jcag/gwac036.114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/09/2023] Open
Abstract
Abstract
Background
Magnification endoscopy and magnification narrow-band imaging are image enhanced endoscopy technologies that may allow for the diagnosis of advanced neoplasia in the GI tract on the basis of imaging characteristics. Recently, the Unified Magnifying Endoscopic Classification (UMEC) has been developed, which unified the criteria for the esophagus, stomach, and colon. UMEC divides optical diagnosis into one of the three categories: non-neoplastic, intramucosal neoplasia, and deep submucosal invasive cancer.
Purpose
The objective of this study is to educate North American endoscopists on the use of the UMEC schema, and to ascertain performance of the UMEC framework among North American endoscopists.
Method
Using UMEC, five North American endoscopists (>1000 procedures) without prior training in magnifying endoscopy independently diagnosed previously collected endoscopic image set of the esophagus, stomach, and colon. The endoscopists were trained on the use of UMEC via an eleven-minute training video with exemplars of each element of UMEC from esophagus, stomach, and colon. All endoscopists were blinded to white-light and non-magnifying NBI findings as well as histopathological diagnosis. The diagnostic performance of UMEC was assessed while using the gold standard histopathology as a reference.
Result(s)
A total of 299 gastrointestinal lesions (77 esophagus, 92 stomach, and 130 colon) were assessed using UMEC. For esophageal squamous cell carcinoma, the sensitivity, specificity, and accuracy for all 5 endoscopists ranged from 65.2% (95% CI: 50.9–77.9) to 87.0% (95% CI: 75.3–94.6), 77.4% (95% CI: 60.9–89.6) to 96.8% (95% CI: 86.8–99.8), and 75.3% to 87.0%, respectively. For gastric adenocarcinoma, the sensitivity, specificity, and accuracy for all 5 endoscopists ranged from 94.9% (95% CI: 85.0–99.1) to 100%, 52.9% (95% CI: 39.4–66.2) to 92.2% (95% CI: 82.7–97.5), and 73.3% to 93.3%, respectively. For colorectal adenocarcinoma, the sensitivity, specificity, and accuracy for all 5 endoscopists ranged from 76.2% (95% CI: 62.0–87.3) to 83.3% (95% CI: 70.3–92.5), 89.7% (95% CI: 82.1–94.9) to 97.7% (95% CI: 93.1–99.6), and 86.8% to 90.7%, respectively.
Image
Conclusion(s)
UMEC is a simple and practical classification that can be used to introduce and educate endoscopists to magnification narrow-band imaging and optical diagnosis.
Please acknowledge all funding agencies by checking the applicable boxes below
CAG
Disclosure of Interest
M. R. A. Fujiyoshi Grant / Research support from: 2022 CAG/AbbVie Education Research Grant, Y. Fujiyoshi: None Declared, N. Gimpaya: None Declared, R. Bechara: None Declared, T. Jeyalingam: None Declared, N. Calo: None Declared, N. Forbes: None Declared, R. Khan: None Declared, M. Atalla: None Declared, A. Toshimori: None Declared, Y. Shimamura: None Declared, M. Tanabe: None Declared, J. Mosko: None Declared, H. Inoue: None Declared, S. Grover: None Declared
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Affiliation(s)
- M R A Fujiyoshi
- Division of Gastroenterology, St. Michael's Hospital, University of Toronto , Toronto , Canada
- Digestive Diseases Center, Showa University Koto Toyosu Hospital , Tokyo , Japan
| | - Y Fujiyoshi
- Division of Gastroenterology, St. Michael's Hospital, University of Toronto , Toronto , Canada
- Digestive Diseases Center, Showa University Koto Toyosu Hospital , Tokyo , Japan
| | - N Gimpaya
- Division of Gastroenterology, St. Michael's Hospital, University of Toronto , Toronto , Canada
| | - R Bechara
- Division of Gastroenterology, Kingston General and Hotel Dieu Hospital, Queen's University , Kingston
| | - T Jeyalingam
- Division of Gastroenterology, University Health Network, University of Toronto , Toronto
| | - N C Calo
- Division of Gastroenterology, University of Ottawa , Ottawa
| | - N Forbes
- Division of Gastroenterology, University of Calgary , Calgary , Canada
| | - R Khan
- Division of Gastroenterology, St. Michael's Hospital, University of Toronto , Toronto , Canada
| | - M Atalla
- Division of Gastroenterology, St. Michael's Hospital, University of Toronto , Toronto , Canada
| | - A Toshimori
- Digestive Diseases Center, Showa University Koto Toyosu Hospital , Tokyo , Japan
| | - Y Shimamura
- Digestive Diseases Center, Showa University Koto Toyosu Hospital , Tokyo , Japan
| | - M Tanabe
- Digestive Diseases Center, Showa University Koto Toyosu Hospital , Tokyo , Japan
| | - J Mosko
- Division of Gastroenterology, St. Michael's Hospital, University of Toronto , Toronto , Canada
| | - H Inoue
- Digestive Diseases Center, Showa University Koto Toyosu Hospital , Tokyo , Japan
| | - S Grover
- Division of Gastroenterology, St. Michael's Hospital, University of Toronto , Toronto , Canada
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Sabrie N, Seleq S, Homsi H, Khan R, Gimpaya N, Bansal R, Scaffidi M, Lightfoot D, Grover S. A128 GLOBAL TRENDS IN TRAINING AND CREDENTIALING GUIDELINES FOR GASTROINTESTINAL (GI) ENDOSCOPY: A SYSTEMATIC REVIEW. J Can Assoc Gastroenterol 2023. [PMCID: PMC9991236 DOI: 10.1093/jcag/gwac036.128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/09/2023] Open
Abstract
Background Credentialing in GI endoscopy is not a universally standardized process. National guidelines may provide a framework for local training, however in certain settings, training committees set minimal competency requirements that must be met before a clinician can be accredited to practice independently. There is a paucity of literature assessing the inter-societal and geographic variability in guidelines and training requirements in endoscopy. Purpose To systematically review the available credentialing guidelines proposed by different GI endoscopy societies and affiliated training committees internationally. Method We conducted a systematic review according to the PRISMA guidelines. A comprehensive literature search was performed for credentialing guidelines for GI endoscopy from inception until January 2022. Two reviewers screened and one reviewer abstracted data using a pre-defined data collection form. Result(s) From the 653 records obtained from our search, 20 credentialing guidelines from 12 different GI societies were ultimately included in the review. These guidelines encompassed the following procedures and outlined the following key-performance indicators; a) Colonoscopy: the recommended minimum number of procedures performed ranged from 150-275 with a minimum cecal intubation and adenoma detection rate of 85-90% and 20-30% respectively; b) EGD: the minimum number of procedures prior to credentialing ranged from 130-1000, the minimum duodenal intubation rate ranged from 95-100%, and the range for minimum number of upper GI bleeds managed was 20-45 (in addition to other procedural KPIs); c) ERCP: the recommended minimum number of procedures prior to credentialing ranged from 100-300 cases with a minimum selective duct cannulation rate of 80-90%. Guidelines for flexible sigmoidoscopy, EUS and capsule endoscopy were also obtained. Image ![]()
Conclusion(s) There is a general concordance amongst the various international GI societies with regards to minimum procedural volume and performance in key procedural tasks prior to credentialing, however the use of validated education assessment tools was lacking in the majority of guidelines. Additional KPI’s need to be explored for less routinely performed procedures such as EUS and capsule endoscopy. Please acknowledge all funding agencies by checking the applicable boxes below None Disclosure of Interest None Declared
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Affiliation(s)
| | | | | | - R Khan
- University of Toronto,Gastroenterology
| | | | | | | | | | - S Grover
- Gastroenterology,Gastroenterology, University of Toronto, Toronto, Canada
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Zhao AY, Gimpaya N, Lisondra J, Fujiyoshi R, Fujiyoshi Y, Khan R, Tham D, Scaffidi MA, Bansal R, Walsh C, Grover SC. A119 DEVELOPMENT AND EVALUATION OF LOW-COST GEL POLYPS FOR POLYPECTOMY SKILLS TRAINING IN NOVICE ENDOSCOPISTS. J Can Assoc Gastroenterol 2023. [PMCID: PMC9991154 DOI: 10.1093/jcag/gwac036.119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/09/2023] Open
Abstract
Background Polypectomy is an essential skill for endoscopists to acquire. As polyps are encountered ad hoc during colonoscopies, exposure to polypectomy in clinical training may vary. There is a need to deliver a curriculum that standardizes exposure to polypectomy while remaining cost-effective for endoscopy programs worldwide. Purpose To develop low-cost simulated polyps that can be incorporated into endoscopic training programs, and to evaluate their perceived realism and useability for polypectomy training. Method We designed 3D molds based on the Paris classification, a validated rubric for polyp morphology. The polyps are depicted in Figure 1. Using low-cost materials, we created gel-based polyps compatible with physical colonic simulators. Current versions of the polyps were finalized based on visual realism and durability. Expert (performed >1000 procedures) and novice (<25 procedures) endoscopists were invited to perform simulated polypectomies and evaluate the realism of the polyps. Using a 7-point Likert scale (“strongly disagree” to “strongly agree”), we administered a survey adapted from the Direct Observed Polypectomy Skills (DOPyS) checklist to evaluate the polyps on practicality of design and useability for training. Additionally, the simulator’s resemblance to human polypectomy was assessed through a scale with 1 indicating “low resemblance” and 7 indicating “high resemblance”. The ease of identifying morphology was also evaluated, with 1 indicating “difficult” and 7 indicating “easy”. Result(s) The survey was completed by 11 expert endoscopists and 10 novices. The median score submitted by experts on the polyps’ useability in training the technique for mobilization of the polyp was 7 (IQR 6-7). Experts rated the simulator’s practicality in teaching cold snare or electrocautery techniques with a median score of 6 (IQR 6-7). Lastly, the ability of the simulator to develop skills in identifying and treating the residual polyp was assessed by expert endoscopists, giving it a median score of 6 (IQR 6-7). The simulators were tested on similarity to human polypectomy, with the median score of expert groups being 5 (IQR 5-6), and novice groups being 6 (IQR 6-6). Both groups were asked to rate if morphology could be identified using the simulator; the median score of expert groups being 6 (IQR 6-7), and 6.5 for novice endoscopists (IQR 5-7). Image ![]()
Conclusion(s) The development of simulated polyps with differing morphologies using low-cost and common materials with high realism is feasible. These polyps may potentially be integrated into different endoscopic training programs. Please acknowledge all funding agencies by checking the applicable boxes below None Disclosure of Interest A. Zhao: None Declared, N. Gimpaya: None Declared, J. Lisondra: None Declared, R. Fujiyoshi: None Declared, Y. Fujiyoshi: None Declared, R. Khan Grant / Research support from: Rishad Khan has received research grants from AbbVie (2018) and Ferring Pharmaceuticals (2019) and research funding from Pendopharm (2019). , D. Tham: None Declared, M. Scaffidi: None Declared, R. Bansal: None Declared, C. Walsh: None Declared, S. Grover Shareholder of: Samir C. Grover has equity in Volo Healthcare., Grant / Research support from: Samir C. Grover has received research grants and personal fees from AbbVie and Ferring Pharmaceuticals, personal fees from Takeda, education grants from Janssen.
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Affiliation(s)
- A Y Zhao
- Division of Gastroenterology, St. Michael's Hospital
| | - N Gimpaya
- Division of Gastroenterology, St. Michael's Hospital
| | - J Lisondra
- Division of Gastroenterology, St. Michael's Hospital
| | - R Fujiyoshi
- Division of Gastroenterology, St. Michael's Hospital
| | - Y Fujiyoshi
- Division of Gastroenterology, St. Michael's Hospital
| | - R Khan
- Division of Gastroenterology, St. Michael's Hospital,Department of Medicine, University of Toronto
| | - D Tham
- Division of Gastroenterology, St. Michael's Hospital
| | - M A Scaffidi
- Division of Gastroenterology, St. Michael's Hospital
| | - R Bansal
- Division of Gastroenterology, St. Michael's Hospital
| | - C Walsh
- Division of Gastroenterology, Hepatology, and Nutrition and the Research and Learning Institutes, The Hospital for Sick Children,Department of Pediatrics, University of Toronto Faculty of medicine,The Wilson Centre, University of Toronto, Toronto, Canada
| | - S C Grover
- Division of Gastroenterology, St. Michael's Hospital,Department of Medicine, University of Toronto
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Sabrie N, Jogendran R, Khan R, Scaffidi M, Gimpaya N, Lightfoot D, Grover S. A115 THE PERFORMANCE OF NATURAL LANGUAGE PROCESSING IN INTERPRETING COLONOSCOPY REPORTS: A SYSTEMATIC REVIEW AND META-ANALYSIS. J Can Assoc Gastroenterol 2023. [PMCID: PMC9991314 DOI: 10.1093/jcag/gwac036.115] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/09/2023] Open
Abstract
Background Screening colonoscopy is integral in the effort to identify and remove potentially cancerous lesions. Important quality indicators include the adenoma detection rate and more recently, the sessile/serrated adenoma detection rate. Natural language processing (NLP) is a computer-based linguistic technique that leverages artificial intelligence to abstract meaningful information from text. This tool carries the potential to automate the task of analyzing large volumes of colonoscopy and pathology reports to generate data on key performance metrics. Purpose The aim of this study is to systematically review the available literature on the performance of NLP in identifying the presence of an adenoma or a sessile/serrated adenoma in colonoscopy reports. Method We performed a systematic review and meta-analysis according to PRISMA recommendations. A comprehensive literature query was conducted on MEDLINE, EMBASE, CINAHL, and CDSR, through July 2022. Studies were included if they evaluated the performance of NLP in extracting data from colonoscopy reports. Our primary outcome was the performance of NLP models in correctly identifying an adenoma reported in a colonoscopy report. Two authors independently screened studies and abstracted data using an a priori designed data collection form. We pooled the sensitivity and specificity of our primary outcome using a univariate analysis first, followed by a bivariate analysis. Using the open-source package ‘mada’ which is written in R, we generated a summary estimate and a summary receiver operating characteristic curve. Result(s) From the 1030 unique studies obtained from our literature search, 13 studies met the inclusion criteria. Eligible studies were used for our meta-analysis. In the univariate analysis, the pooled sensitivity and specificity for detecting an adenoma by the NLP systems was 0.978 (95% CI 0.938-0.992) and 0.997 (95% CI 0.984-0.999), respectively. Similarly, in univariate analysis, the pooled sensitivity and specificity for detecting a sessile/serrated adenoma by the NLP systems was 0.984 (95% CI 0.929-0.996) and 1.0 (95% CI 0.998-1.000), respectively. In the bivariate analysis, the summary estimates for the sensitivity and specificity of the NLP system in detecting an adenoma were 0.973 (95% CI 0.929-0.990) and 0.992 (95%CI 0.978-0.997) respectively. For detecting a sessile/serrated adenoma, the summary estimates for sensitivity and specificity were 0.964 (95% CI 0.895-0.988) and 0.998 (95% CI 0.995-0.999) respectively. Conclusion(s) NLP models have excellent performance in extracting quality metric data from colonoscopy reports. Based on the available literature, we suggest integration of NLP in quality improvement efforts in colonoscopy. Please acknowledge all funding agencies by checking the applicable boxes below None Disclosure of Interest None Declared
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Affiliation(s)
| | | | - R Khan
- University of Toronto,Gastroenterology
| | | | | | | | - S Grover
- Gastroenterology,Gastroenterology, University of Toronto, Toronto, Canada
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Khan R, Homsi H, Gimpaya N, Sabrie N, Gholami R, Bansal R, Scaffidi M, Lightfoot D, James P, Siau K, Forbes N, Wani S, Keswani R, Walsh C, Grover S. A117 VALIDITY EVIDENCE FOR ENDOSCOPIC RETROGRADE CHOLANGIOPANCREATOGRAPHY COMPETENCY ASSESSMENT TOOLS: A SYSTEMATIC REVIEW. J Can Assoc Gastroenterol 2023. [PMCID: PMC9991253 DOI: 10.1093/jcag/gwac036.117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/09/2023] Open
Abstract
Background Assessment of competence in endoscopic retrograde cholangiopancreatography (ERCP) is essential to ensure trainees possess the skills needed for independent practice. Traditionally, ERCP training has used the apprenticeship model, whereby novices learn skills under the supervision of an expert. A growing focus on procedural quality, however, has supported the implementation of competency-based medical education models which require documentation of a trainee’s competence for independent practice. Observational assessment tools with strong evidence of validity are critical to this process. Validity evidence supporting ERCP observational assessment tools has not been systematically evaluated. Purpose To conduct a systematic review of ERCP assessment tools and identify tools with strong evidence of validity using a unified validity evidence framework Method We conducted a systematic search using electronic databases and hand-searching from inception until August 2021 for studies evaluating observational assessment tools of ERCP performance. We used a unified validity framework to characterize validity evidence from five sources: content, response process, internal structure, relations to other variables, and consequences. Each domain was assigned a score of 0-3 (maximum score 15). We assessed educational utility and methodological quality using the Accreditation Council for Graduate Medical Education framework and the Medical Education Research Quality Instrument, respectively. Result(s) From 2769 records, we included 17 studies evaluating 7 assessment tools. Five tools were studied for clinical ERCP, one on simulated ERCP, and one on simulated and clinical ERCP. Validity evidence scores ranged from 2-12. The Bethesda ERCP Skills Assessment Tool (BESAT), ERCP Direct Observation of Procedural Skills Tool (ERCP DOPS), and The Endoscopic Ultrasound (EUS) and ERCP Skills Assessment Tool (TEESAT) had the strongest validity evidence with scores of 10, 12, and 11, respectively. Regarding educational utility, most tools were easy to use and interpret, and required minimal additional resources. Overall methodological quality was strong, with scores ranging from 10-12.5 (maximum 13.5). Conclusion(s) The BESAT, ERCP DOPS, and TEESAT have strong validity evidence compared to other assessments. Integrating tools into training may help drive learners’ development and support competency decision-making. Please acknowledge all funding agencies by checking the applicable boxes below CAG Disclosure of Interest None Declared
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Affiliation(s)
- R Khan
- Western University, London
| | | | | | | | | | | | | | | | - P James
- University Health Network, Toronto, Canada
| | - K Siau
- University of Birmingham College of Medical and Dental Sciences, Birmingham, United Kingdom
| | - N Forbes
- University of Calgary, Calgary, Canada
| | - S Wani
- University of Colorado Anschutz Medical Campus, Aurora
| | - R Keswani
- Northwestern University, Chicago, United States
| | - C Walsh
- The Hospital for Sick Children, Toronto, Canada
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Khan R, Nijhawan A, Shick C, Salazar S, Pourmoussa A, Saxena A, Hasan M, Schiro B. Abstract No. 181 Evaluation of Carotid Artery Stenosis Using 3D/4D Vessel Cast. J Vasc Interv Radiol 2023. [DOI: 10.1016/j.jvir.2022.12.238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/26/2023] Open
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Prakash R, Kumari N, Siddiqui AJ, Khan AQ, Khan MA, Khan R, Haque R, Robertson AA, Boltze J, Raza SS. MCC950 Regulates Stem Cells Destiny Through Modulating SIRT3-NLRP3 Inflammasome Dynamics During Oxygen Glucose Deprivation. Stem Cell Rev Rep 2023:10.1007/s12015-023-10520-6. [PMID: 36811746 DOI: 10.1007/s12015-023-10520-6] [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] [Accepted: 02/15/2023] [Indexed: 02/24/2023]
Abstract
Ischemic stroke is the major cause of death and morbidity worldwide. Stem cell treatment is at the forefront of ischemic therapeutic interventions. However, the fate of these cells following transplantation is mostly unknown. The current study examines the influence of oxidative and inflammatory pathological events associated with experimental ischemic stroke (oxygen glucose deprivation (OGD)) on the stem cell population (human Dental Pulp Stem Cells, and human Mesenchymal Stem Cells) through the involvement of the NLRP3 inflammasome. We explored the destiny of the above-mentioned stem cells in the stressed micro (-environment) and the ability of MCC950 to reverse the magnitudes. An enhanced expression of NLRP3, ASC, cleaved caspase1, active IL-1β and active IL-18 in OGD-treated DPSC and MSC was observed. The MCC950 significantly reduced NLRP3 inflammasome activation in the aforementioned cells. Further, in OGD groups, oxidative stress markers were shown to be alleviated in the stem cells under stress, which was effectively relieved by MCC950 supplementation. Interestingly, whereas OGD increased NLRP3 expression, it decreased SIRT3 levels, implying that these two processes are intertwined. In brief, we discovered that MCC950 inhibits NLRP3-mediated inflammation by inhibiting the NLRP3 inflammasome and increasing SIRT3. To conclude, according to our findings, inhibiting NLRP3 activation while enhancing SIRT3 levels with MCC950 reduces oxidative and inflammatory stress in stem cells under OGD-induced stress. These findings shed light on the causes of hDPSC and hMSC demise following transplantation and point to strategies to lessen therapeutic cell loss under ischemic-reperfusion stress.
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Affiliation(s)
- Ravi Prakash
- Laboratory for Stem Cell & Restorative Neurology, Department of Biotechnology, Era's Lucknow Medical College and Hospital, Era University, Sarfarazganj, Lucknow-226003, India
| | - Neha Kumari
- Laboratory for Stem Cell & Restorative Neurology, Department of Biotechnology, Era's Lucknow Medical College and Hospital, Era University, Sarfarazganj, Lucknow-226003, India
| | - Abu Junaid Siddiqui
- Laboratory for Stem Cell & Restorative Neurology, Department of Biotechnology, Era's Lucknow Medical College and Hospital, Era University, Sarfarazganj, Lucknow-226003, India
| | - Abdul Quaiyoom Khan
- Translational Research Institute, Academic Health System, Hamad Medical Corporation, P.O. Box 3050, Doha, Qatar
| | | | - Rehan Khan
- Chemical Biology Unit, Institute of Nano Science and Technology, 140306, Mohali, Punjab, India
| | - Rizwanul Haque
- Departmenyt of Biotechnology, Central University of South Bihar, 824236, Gaya, India
| | - Avril Ab Robertson
- School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, QLD, Australia
| | - Johannes Boltze
- School of Life Sciences, University of Warwick, Coventry, UK
| | - Syed Shadab Raza
- Laboratory for Stem Cell & Restorative Neurology, Department of Biotechnology, Era's Lucknow Medical College and Hospital, Era University, Sarfarazganj, Lucknow-226003, India. .,Department of Stem Cell Biology and Regenerative Medicine, Era's Lucknow Medical College Hospital, Era University, Sarfarazganj, Lucknow-226003, India.
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Devi K, Kumar V, Kumar V, Mahajan N, Kaur J, Sharma S, Kumar A, Khan R, Bishnoi M, Kondepudi KK. Modified cereal bran (MCB) from finger millet, kodo millet, and rice bran prevents high-fat diet-induced metabolic derangements. Food Funct 2023; 14:1459-1475. [PMID: 36648164 DOI: 10.1039/d2fo02095e] [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: 12/27/2022]
Abstract
Cereal bran consumption improves gastrointestinal and metabolic health. Unprocessed cereal brans have a limited shelf-life and contain anti-nutrient phytochemicals. In the present study, lipids and antinutrients (flavonoids, tannin, and polyphenol) were removed from finger millet, kodo millet and rice bran using chemo-enzymatic processing. The thus-obtained modified cereal brans (MCBs) were evaluated for their potential in preventing high fat diet (HFD)-induced obesity. C57BL/6 mice were fed a HFD or a HFD supplemented with 10% w/w modified finger millet bran (mFMB), modified kodo millet bran (mKMB), modified rice bran (mRB), or a combination of the modified brans (1 : 1 : 1) for twelve weeks. The MCBs reduced HFD-induced body weight gain, improved glucose homeostasis, decreased the Firmicutes/Bacteroidetes ratio, and increased the short chain fatty acid (SCFA) levels in the cecum. Liver dyslipidemia, oxidative stress, inflammation, visceral white adipose tissue (vWAT) hypertrophy, and lipolysis were also prevented by the MCBs. Among the individual MCBs, mRB showed a greater effect in preventing HFD-induced increase in the inflammatory cytokines (IL-6, TNF-α, and LPS) than mFMB and mKMB. mFMB and mKMB supplementation more significantly restored the relative abundance of Akkermansia muciniphila and butyrate-producing genera such as Lachnospiraceae, Eubacterium, and Ruminococcus than mRB. Ex vivo gut permeability assay, immunohistochemistry of tight junction proteins, and gene expression analysis in the colon revealed that the combination of three brans was better in preventing HFD-induced leaky gut in comparison to the individual brans. Hierarchical clustering analysis showed that the combination group was clustered closest to the NPD group, suggesting an additive effect. Our study implies that a combination of mFMB, mKMB, and mRB could be used as a nutraceutical or functional food ingredient for preventing HFD-induced gut derangements and associated metabolic complications.
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Affiliation(s)
- Kirti Devi
- Centre for Excellence in Functional Foods, Division of Food and Nutritional Biotechnology, National Agri-Food Biotechnology Institute (NABI), Knowledge City-Sector 81, SAS Nagar, Punjab 140306, India. .,Department of Biotechnology, Panjab University, Sector-25, Chandigarh 160014, India
| | - Vibhu Kumar
- Centre for Excellence in Functional Foods, Division of Food and Nutritional Biotechnology, National Agri-Food Biotechnology Institute (NABI), Knowledge City-Sector 81, SAS Nagar, Punjab 140306, India. .,University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh 160014, India
| | - Vijay Kumar
- Centre for Excellence in Functional Foods, Division of Food and Nutritional Biotechnology, National Agri-Food Biotechnology Institute (NABI), Knowledge City-Sector 81, SAS Nagar, Punjab 140306, India. .,Department of Biotechnology, Panjab University, Sector-25, Chandigarh 160014, India
| | - Neha Mahajan
- Centre for Excellence in Functional Foods, Division of Food and Nutritional Biotechnology, National Agri-Food Biotechnology Institute (NABI), Knowledge City-Sector 81, SAS Nagar, Punjab 140306, India. .,Regional Centre for Biotechnology, Faridabad-Gurgaon Expressway, Faridabad, Haryana 121001, India
| | - Jasleen Kaur
- Centre for Excellence in Functional Foods, Division of Food and Nutritional Biotechnology, National Agri-Food Biotechnology Institute (NABI), Knowledge City-Sector 81, SAS Nagar, Punjab 140306, India. .,University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh 160014, India
| | - Shikha Sharma
- Centre for Excellence in Functional Foods, Division of Food and Nutritional Biotechnology, National Agri-Food Biotechnology Institute (NABI), Knowledge City-Sector 81, SAS Nagar, Punjab 140306, India. .,Department of Biotechnology, Panjab University, Sector-25, Chandigarh 160014, India
| | - Ajay Kumar
- Institute of Nanoscience and Technology (INST), Knowledge city-Sector 81, SAS Nagar, Punjab 140306, India
| | - Rehan Khan
- Institute of Nanoscience and Technology (INST), Knowledge city-Sector 81, SAS Nagar, Punjab 140306, India
| | - Mahendra Bishnoi
- Centre for Excellence in Functional Foods, Division of Food and Nutritional Biotechnology, National Agri-Food Biotechnology Institute (NABI), Knowledge City-Sector 81, SAS Nagar, Punjab 140306, India. .,Department of Biotechnology, Panjab University, Sector-25, Chandigarh 160014, India.,Regional Centre for Biotechnology, Faridabad-Gurgaon Expressway, Faridabad, Haryana 121001, India
| | - Kanthi Kiran Kondepudi
- Centre for Excellence in Functional Foods, Division of Food and Nutritional Biotechnology, National Agri-Food Biotechnology Institute (NABI), Knowledge City-Sector 81, SAS Nagar, Punjab 140306, India. .,Department of Biotechnology, Panjab University, Sector-25, Chandigarh 160014, India.,Regional Centre for Biotechnology, Faridabad-Gurgaon Expressway, Faridabad, Haryana 121001, India
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Mariappan P, Johnston A, Trail M, Hamid S, Hollins G, Dreyer B, Ramsey S, Padovani L, Guerrero Enriquez J, Simpson H, Hasan R, Sharpe C, Thomas B, Bhatt J, Ahmad I, Nandwani G, Chaudhry A, Boden A, Khan R, Maresca G, Dimitropoulos K, Graham C, Hendry D. Can repeat TURBT in patients presenting with High Grade Ta Urothelial Carcinoma be more nuanced? Eur Urol 2023. [DOI: 10.1016/s0302-2838(23)00752-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
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Sakla R, Ghosh A, Kumar V, Kanika, Das P, Sharma PK, Khan R, Jose DA. Light activated simultaneous release and recognition of biological signaling molecule carbon monoxide (CO). Methods 2023; 210:44-51. [PMID: 36642393 DOI: 10.1016/j.ymeth.2023.01.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Revised: 01/04/2023] [Accepted: 01/07/2023] [Indexed: 01/15/2023] Open
Abstract
The therapeutic action of carbon monoxide (CO) is very well known and has been studied on various types of tissues and animals. However, real-time spatial and temporal tracking and release of CO is still a challenging task. This paper reported an amphiphilic CO sensing probe NP and phospholipid 1,2-Dipalmitoyl-sn-glycero-3-phosphocholine (DPPC) based nanoscale vesicular sensing system Ves-NP consisting of NP. The liposomal sensing system (Ves-NP) showed good selectivity and sensitivity for CO without any interference from other relevant biological analytes. Detection of CO is monitored by fluorescence OFF-ON signal. Ves-NP displayed LOD of 5.94 µM for CO detection with a response time of 5 min. Further, in a novel attempt, Ves-NP is co-embedded with the amphiphilic CO-releasing molecule 1-Mn(CO)3 to make an analyte replacement probe Ves-NP-CO. Having a both CO releasing and sensing moiety at the surface of the same liposomal system Ves-NP-CO play a dual role. Ves-NP-CO is used for the simultaneous release and recognition of CO that can be controlled by light. Thus, in this novel approach, for the first time we have attached both the release and recognition units of CO in the vesicular surface, both release and recognition simultaneously monitored by the change in fluorescent OFF-ON signal.
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Affiliation(s)
- Rahul Sakla
- Department of Chemistry, National Institute of Technology (NIT) Kurukshetra, Kurukshetra-136119, Haryana, India; Chemical Biology Unit, Institute of Nano Science and Technology (INST), Knowledge City, Sector 81, Mohali, Punjab 140306, India
| | - Amrita Ghosh
- Department of Chemistry, Kurukshetra University, Kurukshetra-136119, Haryana, India
| | - Vinod Kumar
- Department of Chemistry, National Institute of Technology (NIT) Kurukshetra, Kurukshetra-136119, Haryana, India
| | - Kanika
- Chemical Biology Unit, Institute of Nano Science and Technology (INST), Knowledge City, Sector 81, Mohali, Punjab 140306, India
| | - Priyadip Das
- Department of Chemistry, SRM Institute of Science and Technology, SRM Nagar, Kattankulathur-603203, Tamil Nadu, India
| | - Pawan K Sharma
- Department of Chemistry, Kurukshetra University, Kurukshetra-136119, Haryana, India
| | - Rehan Khan
- Chemical Biology Unit, Institute of Nano Science and Technology (INST), Knowledge City, Sector 81, Mohali, Punjab 140306, India
| | - D Amilan Jose
- Department of Chemistry, National Institute of Technology (NIT) Kurukshetra, Kurukshetra-136119, Haryana, India.
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Ahmad A, Rashid S, Chaudhary AA, Alawam AS, Alghonaim MI, Raza SS, Khan R. Nanomedicine as potential cancer therapy via targeting dysregulated transcription factors. Semin Cancer Biol 2023; 89:38-60. [PMID: 36669712 DOI: 10.1016/j.semcancer.2023.01.002] [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: 09/30/2022] [Revised: 01/02/2023] [Accepted: 01/15/2023] [Indexed: 01/19/2023]
Abstract
Cancer as a disease possess quite complicated pathophysiological implications and is among the prominent causes of morbidity and mortality on global scales. Anti-cancer chemotherapy, surgery, and radiation therapy are some of the present-day conventional treatment options. However, these therapeutic paradigms own several retreats, including lack of specificity, non-targeted toxicological implications, inefficient drug delivery to targeted cells, and emergence of cancer resistance, ultimately causing ineffective cancer management. Owing to the advanced and better biophysical characteristic features and potentiality for the tailoring and customizations and in several fashions, nanotechnology can entirely transubstantiate the cancer identification and its managements. Additionally, nanotechnology also renders several answers to present-day mainstream limitations springing-up in anti-cancer therapeutics. Nanocarriers, owing to their outstanding physicochemical features including but not limited to their particle size, surface morphological features viz. shape etc., have been employed in nanomedicinal platforms for targeting various transcription factors leading to worthy pharmacological outcomes. This transcription targeting activates the wide array of cellular and molecular events like antioxidant enzyme-induction, apoptotic cell death, cell-cycle arrest etc. These outcomes are obtained after the activation or inactivation of several transcription factors and cellular pathways. Further, nanoformulations have been precisely calibrated and functionalized with peculiar targeting groups for improving their efficiency to deliver the drug-payload to specified and targeted cancerous cells and tissues. This review undertakes an extensive, across-the-board and all-inclusive approach consisting of various studies encompassing different types of tailored and customized nanoformulations and nanomaterials designed for targeting the transcription factors implicated in the process of carcinogenesis, tumor-maturation, growth and metastasis. Various transcription factors viz. nuclear factor kappa (NF-κB), signal transducer and activators of transcription (STAT), Cmyc and Twist-related protein 1 (TWIST1) along with several types of nanoparticles targeting these transcription factors have been summarized here. A section has also been dedicated to the different types of nanoparticles targeting the hypoxia inducing factors. Efforts have been made to summarize several other transcription factors implicated in various stages of cancer development, growth, progression and invasion, and their targeting with different kinds of nanomedicinal agents.
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Affiliation(s)
- Anas Ahmad
- Julia McFarlane Diabetes Research Centre (JMDRC), Department of Microbiology, Immunology and Infectious Diseases, Snyder Institute for Chronic Diseases, Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta T2N 4N1, Canada
| | - Summya Rashid
- Department of Pharmacology & Toxicology, College of Pharmacy, Prince Sattam Bin Abdulaziz University, P.O. Box 173, Al-Kharj 11942, Saudi Arabia
| | - Anis Ahmad Chaudhary
- Department of Biology, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 11623, Saudi Arabia
| | - Abdullah S Alawam
- Department of Biology, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 11623, Saudi Arabia
| | - Mohammad Ibrahim Alghonaim
- Department of Biology, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 11623, Saudi Arabia
| | - Syed Shadab Raza
- Laboratory for Stem Cell and Restorative Neurology, Department of Biotechnology, Era's Lucknow Medical College Hospital, Sarfarazganj, Lucknow 226003, India
| | - Rehan Khan
- Chemical Biology Unit, Institute of Nano Science and Technology (INST), Knowledge City, Sector 81, Mohali, Punjab 140306, India.
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Khan R. A derivation of factors influencing homeopaths to promote quackery in Sindh. J PAK MED ASSOC 2023; 73:377-380. [PMID: 36800730 DOI: 10.47391/jpma.6371] [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] [Indexed: 02/18/2023]
Abstract
This article provides multifaceted information as well as an assessment of how and why homoeopaths engage in quackery, which is neither safe, effective, or legal. The purpose of this study was to investigate the factors that influence the majority of homeopaths in Sindh to promote quackery through allopathic medical system, which is outside the boundaries of a homeopath's practice license and competency. The study also explains why homeopathy has remained popular in Sindh, Pakistan, despite its limitations and waning popularity in the United States (USA), the United Kingdom (UK), Russia, Australia, Canada, France, Germany, Switzerland, and Spain over the last decade, based on major national clinical research studies claiming that homeopathic medicines are no more effective than a placebo.
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Imran M, Gowd V, Saha P, Rashid S, Ahmad Chaudhary A, Mohamed MYA, Alawam AS, Khan R. Biologically inspired stealth - Camouflaged strategies in nanotechnology for the improved therapies in various diseases. Int J Pharm 2023; 631:122407. [PMID: 36402290 DOI: 10.1016/j.ijpharm.2022.122407] [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: 07/19/2022] [Revised: 10/27/2022] [Accepted: 11/09/2022] [Indexed: 11/19/2022]
Abstract
Nanotechnology has received increasing attention in the past decade and it's being used as a model for developing better treatments for a variety of diseases. Despite the fact that nanotechnology-based therapy has greatly improved treatment regimens, it still faces challenges such as inadequate circulation, insufficient accumulation at the target region, and undesired toxicity. In this regard, scientists are working on producing cell-membrane camouflaged nanoparticles as a biomimetic technique for modifying the surface of existing nanoparticles to produce significant therapeutic benefits following imparting myriad of desired functionalities. Membranes originating from erythrocytes, white blood cells, cancer cells, stem cells, platelets, or bacterial cells have been used to coat nanoparticle surfaces and create biologically inspired camouflaged nanoparticles. These biomemitic delivery systems have been proven to have potential applications in diagnosing and treating vaiorus diseases, including drug administration, immunisation, immunological regulation, and detoxification. From its inception to the present, we provide a complete description of this advanced technique for functionalizing nanoparticle surfaces. The method of making these membrane coated nanoparticles as well as their characterisation have been thoroughly discussed. Following that, we focused on the diversity of cell membranes derived from distinct cells in the evolution of nanoparticles, emphasising how these biologically inspired stealth - camouflaged techniques have led to increased therapeutic efficacy in a variety of disease states.
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Affiliation(s)
- Mohammad Imran
- Chemical Biology Unit, Institute of Nano Science and Technology, Knowledge, City, Sector-81, Mohali 140306, Punjab, India
| | - Vemana Gowd
- Chemical Biology Unit, Institute of Nano Science and Technology, Knowledge, City, Sector-81, Mohali 140306, Punjab, India
| | - Puspita Saha
- Chemical Biology Unit, Institute of Nano Science and Technology, Knowledge, City, Sector-81, Mohali 140306, Punjab, India
| | - Summya Rashid
- Department of Pharmacology & Toxicology, College of Pharmacy, Prince Sattam Bin Abdulziz University, P.O. Box 173, Al-Kharj 11942, Saudi Arabia
| | - Anis Ahmad Chaudhary
- Department of Biology, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSUI), Riyadh 11623, Saudi Arabia
| | - Marwa Yousry A Mohamed
- Department of Biology, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSUI), Riyadh 11623, Saudi Arabia
| | - Abdullah S Alawam
- Department of Biology, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSUI), Riyadh 11623, Saudi Arabia
| | - Rehan Khan
- Chemical Biology Unit, Institute of Nano Science and Technology, Knowledge, City, Sector-81, Mohali 140306, Punjab, India.
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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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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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Mishra RK, Ahmad A, Kanika, Kumar A, Vyawahare A, Sakla R, Nadeem A, Siddiqui N, Raza SS, Khan R. Caffeic Acid-Conjugated Budesonide-Loaded Nanomicelle Attenuates Inflammation in Experimental Colitis. Mol Pharm 2023; 20:172-182. [PMID: 36472567 DOI: 10.1021/acs.molpharmaceut.2c00558] [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] [Indexed: 12/12/2022]
Abstract
Ulcerative colitis is a multifactorial disease of the gastrointestinal tract which is caused due to chronic inflammation in the colon; it usually starts from the lower end of the colon and may spread to other portions of the large intestine, if left unmanaged. Budesonide (BUD) is a synthetically available second-generation corticosteroidal drug with potent local anti-inflammatory activity. The pharmacokinetic properties, such as extensive first-pass metabolism and quite limited bioavailability, reduce its therapeutic efficacy. To overcome the limitations, nanosized micelles were developed in this study by conjugating stearic acid with caffeic acid to make an amphiphilic compound. The aim of the present study was to evaluate the pharmacological potential of BUD-loaded micelles in a mouse model of dextran sulfate sodium-induced colitis. Micelles were formulated by the solvent evaporation method, and their physicochemical characterizations show their spherical shape under microscopic techniques like atomic force microscopy, transmission electron microscopy, and scanning electron microscopy. The in vitro release experiment shows sustained release behavior in physiological media. These micelles show cytocompatible behavior against hTERT-BJ cells up to 500 μg/mL dose, evidenced by more than 85% viable cells. BUD-loaded micelles successfully normalized the disease activity index and physical observation of colon length. The treatment with BUD-loaded micelles alleviates the colitis severity as analyzed in histopathology and efficiently, overcoming the disease severity via downregulation of various related cytokines (MPO, NO, and TNF-α) and inflammatory enzymes such as COX-2 and iNOS. Results of the study suggest that BUD-loaded nano-sized micelles effectively attenuate the disease conditions in colitis.
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Affiliation(s)
- Rakesh Kumar Mishra
- Chemical Biology Unit, Institute of Nano Science and Technology (INST), Knowledge City, Sector 81, Mohali, Punjab140306, India
| | - Anas Ahmad
- Julia McFarlane Diabetes Research Centre (JMDRC) and Department of Microbiology, Immunology and Infectious Diseases, Snyder Institute for Chronic Diseases and Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Calgary, AlbertaT2N 4N1, Canada
| | - Kanika
- Chemical Biology Unit, Institute of Nano Science and Technology (INST), Knowledge City, Sector 81, Mohali, Punjab140306, India
| | - Ajay Kumar
- Chemical Biology Unit, Institute of Nano Science and Technology (INST), Knowledge City, Sector 81, Mohali, Punjab140306, India
| | - Akshay Vyawahare
- Chemical Biology Unit, Institute of Nano Science and Technology (INST), Knowledge City, Sector 81, Mohali, Punjab140306, India
| | - Rahul Sakla
- Chemical Biology Unit, Institute of Nano Science and Technology (INST), Knowledge City, Sector 81, Mohali, Punjab140306, India
| | - Ahmed Nadeem
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, P.O. Box 2455, Riyadh11451, Saudi Arabia
| | - Nahid Siddiqui
- Amity Institute of Biotechnology, Amity University, Noida201301, India
| | - Syed Shadab Raza
- Laboratory for Stem Cell and Restorative Neurology, Department of Biotechnology, Era's Lucknow Medical College Hospital, Sarfarazganj, Lucknow226003, India
| | - Rehan Khan
- Chemical Biology Unit, Institute of Nano Science and Technology (INST), Knowledge City, Sector 81, Mohali, Punjab140306, India
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Khan R, Mustufa MA. An empirical research study on deluging quackery outlets across Sindh, Pakistan and propositions to deal with confounding factors of rising quackery. J PAK MED ASSOC 2023; 73:135-138. [PMID: 36842023 DOI: 10.47391/jpma.6050] [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] [Indexed: 11/11/2022]
Abstract
OBJECTIVE To estimate the prevalence of medical quackery, to identify the confounding factors of the rising trend, and suggest possible ways to eliminate the menace. METHODS This empirical study was conducted from July 2019 to June 2020 in six divisions of the Sindh province of Pakistan, and comprised field inspection reports and data collection based on healthcare establishments' physical inspection, verification, and action on non-compliant units. Data was qualitatively and quantitatively analysed. RESULTS Of the 3,063 healthcare establishments, 568(18%) were visited in Larkana, 641(21%) in Shaheed Benazirabad (SBA), 527(17%) in Mirpurkhas, 700(23%) in Hyderabad, 110(4%) in Sukkur, and 517(17%) in Karachi. Overall, 2,152(70%) outlets were shuttered and fined for violating anti-quackery laws, while 911(30%) were issued warning notices. CONCLUSIONS The healthcare system in the Sindh province was found to be struggling, with quackery continuing to proliferate.
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Siddiqui I, Gupta J, Collett G, McIntosh I, Komodromos C, Godec T, Ng S, Maniero C, Antoniou S, Khan R, Kapil V, Khanji MY, Gupta AK. Perceived workplace support and mental health, well-being and burnout among health care professionals during the COVID-19 pandemic: a cohort analysis. CMAJ Open 2023; 11:E191-E200. [PMID: 36854456 PMCID: PMC9981163 DOI: 10.9778/cmajo.20220191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/02/2023] Open
Abstract
BACKGROUND Little is known about the relationship between workplace support and mental health and burnout among health care professionals (HCPs) during the COVID-19 pandemic. In this cohort study, we sought to evaluate the association between perceived level of (and changes to) workplace support and mental health and burnout among HCPs, and to identify what constitutes perceived effective workplace support. METHODS Online surveys at baseline (July-September 2020) and follow-up 4 months later assessed the presence of generalized anxiety disorder (using the 7-item Generalized Anxiety Disorder scale [GAD-7]), clinical insomnia, major depressive disorder (using the 9-item Patient Health Questionnaire), burnout (emotional exhaustion and depersonalization) and mental well-being (using the Short Warwick-Edinburgh Mental Wellbeing Score). Both surveys assessed self-reported level of workplace support (single-item Likert scale). For baseline and follow-up, independently, we developed separate logistic regression models to evaluate the association of the level of workplace support (tricohotomized as unsupported, neither supported nor unsupported and supported) with mental health and burnout. We also developed linear regression models to evaluate the association between the change in perceived level of workplace support and the change in mental health scores from baseline and follow-up. We used thematic analyses on free-text entries of the baseline survey to evaluate what constitutes effective support. RESULTS At baseline (n = 1422) and follow-up (n = 681), HCPs who felt supported had reduced risk of anxiety, depression, clinical insomnia, emotional exhaustion and depersonalization, compared with those who felt unsupported. Among those who responded to both surveys (n = 681), improved perceived level of workplace support over time was associated with significantly improved scores on measures of anxiety (adjusted β -0.13, 95% confidence interval [CI] -0.25 to -0.01), depression (adjusted β -0.17, 95% CI -0.29 to -0.04) and mental well-being (adjusted β 0.19, 95% CI 0.10 to 0.29), independent of baseline level of support. We identified 5 themes constituting effective workplace support, namely concern or understanding for welfare, information, tangible qualities of the workplace, leadership and peer support. INTERPRETATION We found a significant association between perceived level of (and changes in) workplace support and mental health and burnout of HCPs, and identified potential themes that constitute perceived workplace support. Collectively, these findings can inform changes in guidance and national policies to improve mental health and burnout among HCPs. Trial registration: ClinicalTrials.gov, no. NCT04433260.
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Affiliation(s)
- Imrana Siddiqui
- Wellbeing Hub (Siddiqui), Newham Training Hub; NHS NorthEast London CCG (Siddiqui); Woodgrange Medical Practice (Siddiqui); South West London and St George's Mental Health NHS Trust (J. Gupta); William Harvey Research Institute (Collett, Godec, Maniero, Kapil, Khanji, A.K. Gupta), Queen Mary University of London; Camden & Islington Foundation Trust (McIntosh); Barnet, Enfield and Haringey Mental Health NHS Trust (Komodromos); Barts Heart Centre (Ng, Maniero, Antoniou, Kapil, Khanji, A.K. Gupta), St. Bartholomew's Hospital and The Royal London Hospital (Maniero, Khan, Kapil, A.K. Gupta), and Newham University Hospital (Khanji), Barts Health NHS Trust; National Heart and Lung Institute (A.K. Gupta), Imperial College London, London, UK
| | - Jaya Gupta
- Wellbeing Hub (Siddiqui), Newham Training Hub; NHS NorthEast London CCG (Siddiqui); Woodgrange Medical Practice (Siddiqui); South West London and St George's Mental Health NHS Trust (J. Gupta); William Harvey Research Institute (Collett, Godec, Maniero, Kapil, Khanji, A.K. Gupta), Queen Mary University of London; Camden & Islington Foundation Trust (McIntosh); Barnet, Enfield and Haringey Mental Health NHS Trust (Komodromos); Barts Heart Centre (Ng, Maniero, Antoniou, Kapil, Khanji, A.K. Gupta), St. Bartholomew's Hospital and The Royal London Hospital (Maniero, Khan, Kapil, A.K. Gupta), and Newham University Hospital (Khanji), Barts Health NHS Trust; National Heart and Lung Institute (A.K. Gupta), Imperial College London, London, UK
| | - George Collett
- Wellbeing Hub (Siddiqui), Newham Training Hub; NHS NorthEast London CCG (Siddiqui); Woodgrange Medical Practice (Siddiqui); South West London and St George's Mental Health NHS Trust (J. Gupta); William Harvey Research Institute (Collett, Godec, Maniero, Kapil, Khanji, A.K. Gupta), Queen Mary University of London; Camden & Islington Foundation Trust (McIntosh); Barnet, Enfield and Haringey Mental Health NHS Trust (Komodromos); Barts Heart Centre (Ng, Maniero, Antoniou, Kapil, Khanji, A.K. Gupta), St. Bartholomew's Hospital and The Royal London Hospital (Maniero, Khan, Kapil, A.K. Gupta), and Newham University Hospital (Khanji), Barts Health NHS Trust; National Heart and Lung Institute (A.K. Gupta), Imperial College London, London, UK
| | - Iris McIntosh
- Wellbeing Hub (Siddiqui), Newham Training Hub; NHS NorthEast London CCG (Siddiqui); Woodgrange Medical Practice (Siddiqui); South West London and St George's Mental Health NHS Trust (J. Gupta); William Harvey Research Institute (Collett, Godec, Maniero, Kapil, Khanji, A.K. Gupta), Queen Mary University of London; Camden & Islington Foundation Trust (McIntosh); Barnet, Enfield and Haringey Mental Health NHS Trust (Komodromos); Barts Heart Centre (Ng, Maniero, Antoniou, Kapil, Khanji, A.K. Gupta), St. Bartholomew's Hospital and The Royal London Hospital (Maniero, Khan, Kapil, A.K. Gupta), and Newham University Hospital (Khanji), Barts Health NHS Trust; National Heart and Lung Institute (A.K. Gupta), Imperial College London, London, UK
| | - Christina Komodromos
- Wellbeing Hub (Siddiqui), Newham Training Hub; NHS NorthEast London CCG (Siddiqui); Woodgrange Medical Practice (Siddiqui); South West London and St George's Mental Health NHS Trust (J. Gupta); William Harvey Research Institute (Collett, Godec, Maniero, Kapil, Khanji, A.K. Gupta), Queen Mary University of London; Camden & Islington Foundation Trust (McIntosh); Barnet, Enfield and Haringey Mental Health NHS Trust (Komodromos); Barts Heart Centre (Ng, Maniero, Antoniou, Kapil, Khanji, A.K. Gupta), St. Bartholomew's Hospital and The Royal London Hospital (Maniero, Khan, Kapil, A.K. Gupta), and Newham University Hospital (Khanji), Barts Health NHS Trust; National Heart and Lung Institute (A.K. Gupta), Imperial College London, London, UK
| | - Thomas Godec
- Wellbeing Hub (Siddiqui), Newham Training Hub; NHS NorthEast London CCG (Siddiqui); Woodgrange Medical Practice (Siddiqui); South West London and St George's Mental Health NHS Trust (J. Gupta); William Harvey Research Institute (Collett, Godec, Maniero, Kapil, Khanji, A.K. Gupta), Queen Mary University of London; Camden & Islington Foundation Trust (McIntosh); Barnet, Enfield and Haringey Mental Health NHS Trust (Komodromos); Barts Heart Centre (Ng, Maniero, Antoniou, Kapil, Khanji, A.K. Gupta), St. Bartholomew's Hospital and The Royal London Hospital (Maniero, Khan, Kapil, A.K. Gupta), and Newham University Hospital (Khanji), Barts Health NHS Trust; National Heart and Lung Institute (A.K. Gupta), Imperial College London, London, UK
| | - Sher Ng
- Wellbeing Hub (Siddiqui), Newham Training Hub; NHS NorthEast London CCG (Siddiqui); Woodgrange Medical Practice (Siddiqui); South West London and St George's Mental Health NHS Trust (J. Gupta); William Harvey Research Institute (Collett, Godec, Maniero, Kapil, Khanji, A.K. Gupta), Queen Mary University of London; Camden & Islington Foundation Trust (McIntosh); Barnet, Enfield and Haringey Mental Health NHS Trust (Komodromos); Barts Heart Centre (Ng, Maniero, Antoniou, Kapil, Khanji, A.K. Gupta), St. Bartholomew's Hospital and The Royal London Hospital (Maniero, Khan, Kapil, A.K. Gupta), and Newham University Hospital (Khanji), Barts Health NHS Trust; National Heart and Lung Institute (A.K. Gupta), Imperial College London, London, UK
| | - Carmela Maniero
- Wellbeing Hub (Siddiqui), Newham Training Hub; NHS NorthEast London CCG (Siddiqui); Woodgrange Medical Practice (Siddiqui); South West London and St George's Mental Health NHS Trust (J. Gupta); William Harvey Research Institute (Collett, Godec, Maniero, Kapil, Khanji, A.K. Gupta), Queen Mary University of London; Camden & Islington Foundation Trust (McIntosh); Barnet, Enfield and Haringey Mental Health NHS Trust (Komodromos); Barts Heart Centre (Ng, Maniero, Antoniou, Kapil, Khanji, A.K. Gupta), St. Bartholomew's Hospital and The Royal London Hospital (Maniero, Khan, Kapil, A.K. Gupta), and Newham University Hospital (Khanji), Barts Health NHS Trust; National Heart and Lung Institute (A.K. Gupta), Imperial College London, London, UK
| | - Sotiris Antoniou
- Wellbeing Hub (Siddiqui), Newham Training Hub; NHS NorthEast London CCG (Siddiqui); Woodgrange Medical Practice (Siddiqui); South West London and St George's Mental Health NHS Trust (J. Gupta); William Harvey Research Institute (Collett, Godec, Maniero, Kapil, Khanji, A.K. Gupta), Queen Mary University of London; Camden & Islington Foundation Trust (McIntosh); Barnet, Enfield and Haringey Mental Health NHS Trust (Komodromos); Barts Heart Centre (Ng, Maniero, Antoniou, Kapil, Khanji, A.K. Gupta), St. Bartholomew's Hospital and The Royal London Hospital (Maniero, Khan, Kapil, A.K. Gupta), and Newham University Hospital (Khanji), Barts Health NHS Trust; National Heart and Lung Institute (A.K. Gupta), Imperial College London, London, UK
| | - Rehan Khan
- Wellbeing Hub (Siddiqui), Newham Training Hub; NHS NorthEast London CCG (Siddiqui); Woodgrange Medical Practice (Siddiqui); South West London and St George's Mental Health NHS Trust (J. Gupta); William Harvey Research Institute (Collett, Godec, Maniero, Kapil, Khanji, A.K. Gupta), Queen Mary University of London; Camden & Islington Foundation Trust (McIntosh); Barnet, Enfield and Haringey Mental Health NHS Trust (Komodromos); Barts Heart Centre (Ng, Maniero, Antoniou, Kapil, Khanji, A.K. Gupta), St. Bartholomew's Hospital and The Royal London Hospital (Maniero, Khan, Kapil, A.K. Gupta), and Newham University Hospital (Khanji), Barts Health NHS Trust; National Heart and Lung Institute (A.K. Gupta), Imperial College London, London, UK
| | - Vikas Kapil
- Wellbeing Hub (Siddiqui), Newham Training Hub; NHS NorthEast London CCG (Siddiqui); Woodgrange Medical Practice (Siddiqui); South West London and St George's Mental Health NHS Trust (J. Gupta); William Harvey Research Institute (Collett, Godec, Maniero, Kapil, Khanji, A.K. Gupta), Queen Mary University of London; Camden & Islington Foundation Trust (McIntosh); Barnet, Enfield and Haringey Mental Health NHS Trust (Komodromos); Barts Heart Centre (Ng, Maniero, Antoniou, Kapil, Khanji, A.K. Gupta), St. Bartholomew's Hospital and The Royal London Hospital (Maniero, Khan, Kapil, A.K. Gupta), and Newham University Hospital (Khanji), Barts Health NHS Trust; National Heart and Lung Institute (A.K. Gupta), Imperial College London, London, UK
| | - Mohammed Y Khanji
- Wellbeing Hub (Siddiqui), Newham Training Hub; NHS NorthEast London CCG (Siddiqui); Woodgrange Medical Practice (Siddiqui); South West London and St George's Mental Health NHS Trust (J. Gupta); William Harvey Research Institute (Collett, Godec, Maniero, Kapil, Khanji, A.K. Gupta), Queen Mary University of London; Camden & Islington Foundation Trust (McIntosh); Barnet, Enfield and Haringey Mental Health NHS Trust (Komodromos); Barts Heart Centre (Ng, Maniero, Antoniou, Kapil, Khanji, A.K. Gupta), St. Bartholomew's Hospital and The Royal London Hospital (Maniero, Khan, Kapil, A.K. Gupta), and Newham University Hospital (Khanji), Barts Health NHS Trust; National Heart and Lung Institute (A.K. Gupta), Imperial College London, London, UK
| | - Ajay K Gupta
- Wellbeing Hub (Siddiqui), Newham Training Hub; NHS NorthEast London CCG (Siddiqui); Woodgrange Medical Practice (Siddiqui); South West London and St George's Mental Health NHS Trust (J. Gupta); William Harvey Research Institute (Collett, Godec, Maniero, Kapil, Khanji, A.K. Gupta), Queen Mary University of London; Camden & Islington Foundation Trust (McIntosh); Barnet, Enfield and Haringey Mental Health NHS Trust (Komodromos); Barts Heart Centre (Ng, Maniero, Antoniou, Kapil, Khanji, A.K. Gupta), St. Bartholomew's Hospital and The Royal London Hospital (Maniero, Khan, Kapil, A.K. Gupta), and Newham University Hospital (Khanji), Barts Health NHS Trust; National Heart and Lung Institute (A.K. Gupta), Imperial College London, London, UK
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Khan W, Rahman A, Zaman S, Kabir M, Khan R, Ali W, Ahmad S, Shabir S, Jamil S, Ríos-Escalante PDL. Knowledge, attitude and practices regarding dengue and its vector among medical practitioners in Malakand region, Pakistan. BRAZ J BIOL 2023; 83:e244966. [DOI: 10.1590/1519-6984.244966] [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: 10/26/2020] [Accepted: 01/05/2021] [Indexed: 11/21/2022] Open
Abstract
Abstract Dengue fever (DF) is increasingly recognized as one of the world’s major mosquito borne diseases and causes significant morbidity and mortality in tropical and subtropical countries. Dengue fever is endemic in most part of Pakistan and continues to be a public health concern. Knowledge, attitude and practices can play an important role in management of the disease. Current study was aimed to determine the level of knowledge, attitude and practices regarding dengue fever among health practitioners, to study the level of knowledge and attitude with preventive practices for dengue fever. A cross sectional study was carried out in medical practitioners of the four districts of Malakand region during October to November 2019. A pre-structured questionnaire was used to collect data from medical practitioners. Data was analyzed using Graph Pad version 5. Significant value was considered when less than 0.05 (at 95% confidence of interval). The results revealed that most of participants have seen dengue vector (62%), the media being the most quoted source of information. Nearly 81.2% participants were aware from transmission of dengue fever is by mosquito bite. Practices based upon preventive measures were found to be predominantly focused towards prevention of mosquito bites rather than elimination of breeding places. Although the knowledge regarding DF and mosquito control measure was quite high among the medical practitioners but this knowledge was not put into practice. Further studies are required to aware the people about dengue and its vector in order to get prevention and control.
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Affiliation(s)
- W. Khan
- University of Malakand, Pakistan
| | | | - S. Zaman
- University of Malakand, Pakistan
| | - M. Kabir
- University of Sargodha, Pakistan
| | - R. Khan
- University of Malakand, Pakistan
| | - W. Ali
- University of Malakand, Pakistan
| | - S. Ahmad
- University of Malakand, Pakistan
| | - S. Shabir
- Agriculture University Faisalabad, Pakistan
| | - S. Jamil
- Rawalpindi Women University, Pakistan
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