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AbouelNour Y, Rakauskas N, Naquila G, Gupta N. Tensile testing data of additive manufactured ASTM D638 standard specimens with embedded internal geometrical features. Sci Data 2024; 11:506. [PMID: 38755159 PMCID: PMC11099124 DOI: 10.1038/s41597-024-03369-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Accepted: 05/10/2024] [Indexed: 05/18/2024] Open
Abstract
Additive manufacturing (AM) is now widely used for research and industrial production. The benchmark data for mechanical properties of additively manufactured specimens is very useful for many communities. This data article presents a tensile testing dataset of ASTM D638 size specimens without and with embedded internal geometrical features printed using polylactic acid (PLA) in a Fused Filament Fabrication (FFF) additive manufacturing process. The added features can mimic defects of various shapes and sizes. This work is a supplement to the published research article Assisted defect detection by in-process monitoring of additive manufacturing using optical imaging and infrared thermography (Additive Manufacturing, 2023, 103483). The printed specimens were tensile tested. Stress-strain graphs were developed and used to calculate the mechanical properties such as ultimate tensile strength (UTS) and strain at UTS. The mechanical properties, the correlations between mechanical properties and size, shape and location of geometrical features (defects), and the trends in mechanical properties can be useful in benchmarking the results of other researchers.
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Affiliation(s)
- Youssef AbouelNour
- Composite Materials and Mechanics Laboratory, Mechanical and Aerospace Engineering Department, New York University, Tandon School of Engineering, 6 MetroTech Center, Brooklyn, NY, 11201, USA.
| | - Nick Rakauskas
- Composite Materials and Mechanics Laboratory, Mechanical and Aerospace Engineering Department, New York University, Tandon School of Engineering, 6 MetroTech Center, Brooklyn, NY, 11201, USA
| | - Gabrielle Naquila
- Composite Materials and Mechanics Laboratory, Mechanical and Aerospace Engineering Department, New York University, Tandon School of Engineering, 6 MetroTech Center, Brooklyn, NY, 11201, USA
| | - Nikhil Gupta
- Composite Materials and Mechanics Laboratory, Mechanical and Aerospace Engineering Department, New York University, Tandon School of Engineering, 6 MetroTech Center, Brooklyn, NY, 11201, USA
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Gupta N, Dhingra B, Raha S, Meharda RP, Lewin S. Ethical Challenges and Guidance Related to Adolescent Pregnancy. Indian Pediatr 2024; 61:482-485. [PMID: 38736225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/14/2024]
Abstract
An emergency team was challenged with ethical issues while managing an unmarried adolescent girl who presented with an acute abdomen wherein a ruptured ectopic pregnancy was suspected. Consent remained at the center of this dilemma given the age of the patient and the nature of the issues. Herein, we deliberate upon the challenges faced by the treating team in accessing the reproductive history, obtaining consent for performing pregnancy tests and for therapeutic interventions.
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Affiliation(s)
- Nikhil Gupta
- Department of Surgery, Atal Bihari Vajpayee Institute of Medical Sciences and Dr. RML Hospital, New Delhi, India
| | - Bhavna Dhingra
- Department of Pediatrics, AIIMS, Bhopal, Madhya Pradesh, India
| | - Swagata Raha
- Enfold Proactive Health Trust, Bangalore, Karnataka, India
| | | | - Sanjiv Lewin
- Department of Family Medicine, Clinical Ethics and Medical Education, St. John's Medical College, Bangalore, Karnataka, India. Correspondence to: Dr. Sanjiv Lewin, Department of Family Medicine, Clinical Ethics and Medical Education, St. John's Medical College, Bangalore, Karnataka, India.
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Wee T, Gupta N, Miller E, Pauranik A. Not Dandy Walker variant: a review of prominent retrocerebellar CSF space in children. Clin Radiol 2024; 79:330-337. [PMID: 38429135 DOI: 10.1016/j.crad.2024.01.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 01/10/2024] [Accepted: 01/14/2024] [Indexed: 03/03/2024]
Abstract
The prominent retrocerebellar cerebrospinal fluid (CSF) space can be frequently encountered on paediatric neuroimaging studies. In cases involving abnormal vermian development where imaging does not align with the established criteria of Dandy-Walker malformation (DWM), the term "Dandy-Walker variant or continuum" has been historically employed to describe the aberrant posterior fossa development. Instead, the emphasis is on a more elaborate description of the findings in the posterior fossa. Moreover, combining the findings in the supratentorial brain can occasionally predict certain neurogenetic disorders that mimic Dandy-Walker phenotype. The present review demonstrates and differentiates the imaging features of various entities that result in an enlarged retrocerebellar CSF space, such as inferior vermian hypoplasia (IVH) and several neurogenetic conditions.
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Affiliation(s)
- T Wee
- Department of Radiology, University of British Columbia, Vancouver, BC, Canada
| | - N Gupta
- Department of Medical Imaging, Children's Hospital of Eastern Ontario (CHEO), Ottawa, ON, Canada
| | - E Miller
- Department of Diagnostic and Interventional Radiology, University of Toronto, Toronto, ON, Canada
| | - A Pauranik
- Department of Radiology, University of British Columbia, Vancouver, BC, Canada; Department of Radiology, BC Children's Hospital, Vancouver, BC, Canada.
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Laisné M, Rodgers B, Benlamara S, Wicinski J, Nicolas A, Djerroudi L, Gupta N, Ferry L, Kirsh O, Daher D, Philippe C, Okada Y, Charafe-Jauffret E, Cristofari G, Meseure D, Vincent-Salomon A, Ginestier C, Defossez PA. A novel bioinformatic approach reveals cooperation between Cancer/Testis genes in basal-like breast tumors. Oncogene 2024; 43:1369-1385. [PMID: 38467851 PMCID: PMC11065691 DOI: 10.1038/s41388-024-03002-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 02/22/2024] [Accepted: 03/01/2024] [Indexed: 03/13/2024]
Abstract
Breast cancer is the most prevalent type of cancer in women worldwide. Within breast tumors, the basal-like subtype has the worst prognosis, prompting the need for new tools to understand, detect, and treat these tumors. Certain germline-restricted genes show aberrant expression in tumors and are known as Cancer/Testis genes; their misexpression has diagnostic and therapeutic applications. Here we designed a new bioinformatic approach to examine Cancer/Testis gene misexpression in breast tumors. We identify several new markers in Luminal and HER-2 positive tumors, some of which predict response to chemotherapy. We then use machine learning to identify the two Cancer/Testis genes most associated with basal-like breast tumors: HORMAD1 and CT83. We show that these genes are expressed by tumor cells and not by the microenvironment, and that they are not expressed by normal breast progenitors; in other words, their activation occurs de novo. We find these genes are epigenetically repressed by DNA methylation, and that their activation upon DNA demethylation is irreversible, providing a memory of past epigenetic disturbances. Simultaneous expression of both genes in breast cells in vitro has a synergistic effect that increases stemness and activates a transcriptional profile also observed in double-positive tumors. Therefore, we reveal a functional cooperation between Cancer/Testis genes in basal breast tumors; these findings have consequences for the understanding, diagnosis, and therapy of the breast tumors with the worst outcomes.
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Affiliation(s)
- Marthe Laisné
- Université Paris Cité, CNRS, Epigenetics and Cell Fate, F-75013, Paris, France
| | - Brianna Rodgers
- Université Paris Cité, CNRS, Epigenetics and Cell Fate, F-75013, Paris, France
| | - Sarah Benlamara
- Université Paris Cité, CNRS, Epigenetics and Cell Fate, F-75013, Paris, France
| | - Julien Wicinski
- CRCM, Inserm, CNRS, Institut Paoli-Calmettes, Aix-Marseille University, Epithelial Stem Cells and Cancer Laboratory, Equipe Labellisée LIGUE Contre le Cancer, Marseille, France
| | - André Nicolas
- Platform of Experimental Pathology, Department of Diagnostic and Theranostic Medicine, Institut Curie-Hospital, 75005, Paris, France
| | - Lounes Djerroudi
- Department of Pathology, Institut Curie, 26 Rue d'Ulm, 75005, Paris, France
| | - Nikhil Gupta
- Université Paris Cité, CNRS, Epigenetics and Cell Fate, F-75013, Paris, France
| | - Laure Ferry
- Université Paris Cité, CNRS, Epigenetics and Cell Fate, F-75013, Paris, France
| | - Olivier Kirsh
- Université Paris Cité, CNRS, Epigenetics and Cell Fate, F-75013, Paris, France
| | - Diana Daher
- Université Paris Cité, CNRS, Epigenetics and Cell Fate, F-75013, Paris, France
| | | | - Yuki Okada
- Institute for Quantitative Biosciences, The University of Tokyo, Tokyo, Japan
| | - Emmanuelle Charafe-Jauffret
- CRCM, Inserm, CNRS, Institut Paoli-Calmettes, Aix-Marseille University, Epithelial Stem Cells and Cancer Laboratory, Equipe Labellisée LIGUE Contre le Cancer, Marseille, France
| | | | - Didier Meseure
- Platform of Experimental Pathology, Department of Diagnostic and Theranostic Medicine, Institut Curie-Hospital, 75005, Paris, France
| | | | - Christophe Ginestier
- CRCM, Inserm, CNRS, Institut Paoli-Calmettes, Aix-Marseille University, Epithelial Stem Cells and Cancer Laboratory, Equipe Labellisée LIGUE Contre le Cancer, Marseille, France
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Gupta N, Kanwar N, Arora A, Khatri K, Kanwal A. The interplay of rheumatoid arthritis and osteoporosis: exploring the pathogenesis and pharmacological approaches. Clin Rheumatol 2024; 43:1421-1433. [PMID: 38499817 DOI: 10.1007/s10067-024-06932-5] [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: 01/12/2024] [Revised: 02/22/2024] [Accepted: 03/08/2024] [Indexed: 03/20/2024]
Abstract
Rheumatoid arthritis (RA) and osteoporosis are two chronic disorders that are often seen together. RA is an autoimmune disorder that causes pain and inflammation in the joints, while osteoporosis is a disorder in which the bones become weak and fragile. Risk factors for bone loss in RA include disease activity, longer disease duration, erosive disease, autoantibody positivity, and joint damage leading to impaired physical activity. Recent research has shown that there is a complex interplay between immune cells, cytokines, and bone remodeling processes in both RA and osteoporosis. The bone remodeling process is regulated by cytokines and immune system signaling pathways, with osteoclasts activated through the RANK/RANKL/OPG pathway and the Wnt/DKK1/sclerostin pathway. Understanding these mechanisms can aid in developing targeted therapies for treatment of osteoporosis in RA patients. Current pharmacological approaches include anti-osteoporotic drugs such as bisphosphonates, denosumab, teriparatide, abaloparatide, raloxifene, and romosozumab. Conventional disease-modifying antirheumatic drugs such as methotrexate and biologicals including TNF inhibitors, IL-6 inhibitors, rituximab, and abatacept lower disease activity in RA and can improve bone metabolism by reducing inflammation but have limited impact on bone mineral density. This review will shed light on the relationship between osteoporosis and rheumatoid arthritis as well as the various factors that influence the onset of osteoporosis in RA patients. We also explore several treatment approaches to effectively managing osteoporosis in RA patients.
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Affiliation(s)
- Nikhil Gupta
- Department of Pharmacology, All India Institute of Medical Sciences, Bathinda, 151001, Punjab, India
| | - Navjot Kanwar
- Department of Pharmaceutical Sciences and Technology, Maharaja Ranjit Singh Punjab Technical University, Bathinda, 151001, Punjab, India
| | - Anchal Arora
- Department of Pharmacology, All India Institute of Medical Sciences, Bathinda, 151001, Punjab, India
| | - Kavin Khatri
- Department of Orthopedics, All India Institute of Medical Sciences, Bathinda, 151001, Punjab, India.
| | - Abhinav Kanwal
- Department of Pharmacology, All India Institute of Medical Sciences, Bathinda, 151001, Punjab, India.
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Gupta N, Konsam BD, Walia R, Bhadada SK, Chhabra R, Dhandapani S, Singh A, Ahuja CK, Sachdeva N, Saikia UN. An objective way to predict remission and relapse in Cushing disease using Bayes' theorem of probability. J Endocrinol Invest 2024:10.1007/s40618-024-02336-z. [PMID: 38619729 DOI: 10.1007/s40618-024-02336-z] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2023] [Accepted: 02/12/2024] [Indexed: 04/16/2024]
Abstract
OBJECTIVE In this study on patients with Cushing disease, post-transsphenoidal surgery (TSS), we attempt to predict the probability of remaining in remission, at least for a year and relapse after that, using Bayes' theorem and the equation of conditional probability. The number of parameters, as well as the weightage of each, is incorporated in this equation. DESIGN AND METHODS The study design was a single-centre ambispective study. Ten clinical, biochemical, radiological and histopathological parameters capable of predicting Cushing disease remission were identified. The presence or absence of each parameter was entered as binary numbers. Bayes' theorem was applied, and each patient's probability of remission and relapse was calculated. RESULTS A total of 145 patients were included in the study. ROC plot showed a cut-off value of the probability of 0.68, with a sensitivity of 82% (range 73-89%) and a specificity of 94% (range 83-99%) to predict the probability of remission. Eighty-one patients who were in remission at 1 year were followed up for relapse and 23 patients developed relapse of the disease. The Bayes' equation was able to predict relapse in only 3 out of 23 patients. CONCLUSIONS Using various parameters, remission of Cushing disease can be predicted by applying Bayes' theorem of conditional probability with a sensitivity and a specificity of 82% and 94%, respectively. This study provided an objective way of predicting remission after TSS and relapse in patients with Cushing disease giving a weightage advantage to every parameter.
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Affiliation(s)
- N Gupta
- Department of Endocrinology, Post Graduate Institute of Medical Education and Research (PGIMER), 1010, Nehru Extension Block, Chandigarh, 160012, India
| | - B D Konsam
- Department of Endocrinology, Post Graduate Institute of Medical Education and Research (PGIMER), 1010, Nehru Extension Block, Chandigarh, 160012, India
| | - R Walia
- Department of Endocrinology, Post Graduate Institute of Medical Education and Research (PGIMER), 1010, Nehru Extension Block, Chandigarh, 160012, India.
| | - S K Bhadada
- Department of Endocrinology, Post Graduate Institute of Medical Education and Research (PGIMER), 1010, Nehru Extension Block, Chandigarh, 160012, India
| | - R Chhabra
- Department of Neurosurgery, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
| | - S Dhandapani
- Department of Neurosurgery, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
| | - A Singh
- Department of Neurosurgery, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
| | - C K Ahuja
- Department of Radiodiagnosis, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
| | - N Sachdeva
- Department of Endocrinology, Post Graduate Institute of Medical Education and Research (PGIMER), 1010, Nehru Extension Block, Chandigarh, 160012, India
| | - U N Saikia
- Department of Histopathology, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
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Anand N, Srivastava P, Agrawal AC, Gupta N, Das A, Husain N. Covid-19-Associated Mucormycosis: Histopathology of the Deadly Fungal Infection. Int Arch Otorhinolaryngol 2024; 28:e240-e246. [PMID: 38618587 PMCID: PMC11008928 DOI: 10.1055/s-0043-1776729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Accepted: 06/25/2023] [Indexed: 04/16/2024] Open
Abstract
Introduction Many patients suffered from rhino-orbital-cerebral mucormycosis during the coronavirus disease 2019 (COVID-19) pandemic in India. Diabetes is a known risk factor of COVID-19 infection and mucormycosis. Objective The present study was done to describe the clinical spectrum and histopathological findings of mucormycosis in COVID-19 patients and their outcomes. Methods A cross-sectional study was done over a period of two and half months. The biopsy samples or scrapings from sinonasal or periorbital tissue of 38 patients were analyzed. Hematoxylin & Eosin (H&E stain) slides were evaluated along with Grocott-Gomori methenamine-silver and Periodic acid-Schiff stains to highlight the fungal elements. Results The male to female ratio was 2.5:1, and the mean age of the subjects was 53 years old. A total of 68.4% ( n = 26/38) of the patients had diabetes as a comorbidity, 84.2% ( n = 32/38) had a history of steroid intake, and 55.3% ( n = 21/38) were given supplemental oxygen during their treatment. The common presentations were nasal blockage, discharge, eye pain, headache, and altered mentation. The sites of biopsy were: nasal cavity 76.3% ( n = 29/38), periorbital fat/orbit 21.1% ( n = 8/38), maxillary sinus 15.8% ( n = 6/38) and ethmoid sinus 13.2% ( n = 5/38). In 76.3% ( n = 29/38) cases, broad, irregular, nonseptate, and right-angle branching hyphae were seen on H&E-stained tissue sections. Conclusion COVID-19 led to various complications in individuals affected by it. Mucormycosis was one such lethal complication. An early diagnosis and prompt treatment is crucial to control the progression of the disease and improve outcomes.
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Affiliation(s)
- Nidhi Anand
- Department of Pathology, Dr. Ram Manohar Lohia Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - Pallavi Srivastava
- Department of Pathology, Dr. Ram Manohar Lohia Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - Ashish Chandra Agrawal
- ENT Department, Dr. Ram Manohar Lohia Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - Nikhil Gupta
- Department of General Medicine, Dr. Ram Manohar Lohia Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - Anupam Das
- Department of Microbiology, Dr. Ram Manohar Lohia Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - Nuzhat Husain
- Department of Pathology, Dr. Ram Manohar Lohia Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
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Sudharson NA, Lister P, Gupta N, Sharma M. Promoting informed choices: navigating global dental care challenges. Br Dent J 2024; 236:582. [PMID: 38671093 DOI: 10.1038/s41415-024-7362-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2024] [Accepted: 03/11/2024] [Indexed: 04/28/2024]
Affiliation(s)
- N A Sudharson
- Assistant Professor, Department of Prosthodontics, Christian Dental College, Ludhiana, India.
| | - P Lister
- Dentist, Emmanuel Hospital Association, Division of Dentistry, Unit of Christian Dental College, Ludhiana, India.
| | - N Gupta
- Senior Dental Consultant, Shri Rama Charitable Hospital, Prabhat Nagar, Dholewal, Ludhiana, India.
| | - M Sharma
- Sure Smiles Dental Clinics, Silgudi, West Bengal, India.
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Nayak VV, Sanjairaj V, Behera RK, Smay JE, Gupta N, Coelho PG, Witek L. Direct inkjet writing of polylactic acid/β-tricalcium phosphate composites for bone tissue regeneration: A proof-of-concept study. J Biomed Mater Res B Appl Biomater 2024; 112:e35402. [PMID: 38520704 PMCID: PMC11003728 DOI: 10.1002/jbm.b.35402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 02/20/2024] [Accepted: 03/04/2024] [Indexed: 03/25/2024]
Abstract
There is an ever-evolving need of customized, anatomic-specific grafting materials for bone regeneration. More specifically, biocompatible and osteoconductive materials, that may be configured dynamically to fit and fill defects, through the application of an external stimulus. The objective of this study was to establish a basis for the development of direct inkjet writing (DIW)-based shape memory polymer-ceramic composites for bone tissue regeneration applications and to establish material behavior under thermomechanical loading. Polymer-ceramic (polylactic acid [PLA]/β-tricalcium phosphate [β-TCP]) colloidal gels were prepared of different w/w ratios (90/10, 80/20, 70/30, 60/40, and 50/50) through polymer dissolution in acetone (15% w/v). Cytocompatibility was analyzed through Presto Blue assays. Rheological properties of the colloidal gels were measured to determine shear-thinning capabilities. Gels were then extruded through a custom-built DIW printer. Space filling constructs of the gels were printed and subjected to thermomechanical characterization to measure shape fixity (Rf) and shape recovery (Rr) ratios through five successive shape memory cycles. The polymer-ceramic composite gels exhibited shear-thinning capabilities for extrusion through a nozzle for DIW. A significant increase in cellular viability was observed with the addition of β-TCP particles within the polymer matrix relative to pure PLA. Shape memory effect in the printed constructs was repeatable up to 4 cycles followed by permanent deformation. While further research on scaffold macro-/micro-geometries, and engineered porosities are warranted, this proof-of-concept study suggested suitability of this polymer-ceramic material and the DIW 3D printing workflow for the production of customized, patient specific constructs for bone tissue engineering.
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Affiliation(s)
- Vasudev Vivekanand Nayak
- Department of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | | | - Rakesh Kumar Behera
- Department of Mechanical and Aerospace Engineering, NYU Tandon School of Engineering, Brooklyn, NY 11201, USA
| | - James E. Smay
- School of Materials Science and Engineering, Oklahoma State University, Tulsa, OK 74106, USA
| | - Nikhil Gupta
- Department of Mechanical and Aerospace Engineering, NYU Tandon School of Engineering, Brooklyn, NY 11201, USA
| | - Paulo G. Coelho
- Department of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, Miami, FL 33136, USA
- DeWitt Daughtry Family Department of Surgery, Division of Plastic Surgery, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Lukasz Witek
- Biomaterials Division, NYU College of Dentistry, New York, NY 10010, USA
- Department of Biomedical Engineering, NYU Tandon School of Engineering, Brooklyn, NY 11201, USA
- Hansjörg Wyss Department of Plastic Surgery, NYU Grossman School of Medicine, New York University, New York, NY 10017, USA
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Gupta N, Kalathiya RJ, Singh N, Bandealy N, Neyestanak M, Besser S, Arevalo C, Friant J, Blair JEA, Nathan S, Shah AP, Paul J. Cardiogenic Shock Intravascular Cooling Trial (CHILL-SHOCK). J Card Fail 2024:S1071-9164(24)00077-0. [PMID: 38458486 DOI: 10.1016/j.cardfail.2024.02.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 02/05/2024] [Accepted: 02/16/2024] [Indexed: 03/10/2024]
Abstract
BACKGROUND Cardiogenic shock (CS) is complicated by high mortality rates. Targeted temperature control (TTC) has been proposed as an adjunct therapy in CS. This study aims to examine the safety of TTC in patients presenting with CS. METHODS AND RESULTS In this open-label, randomized controlled pilot trial, 20 patients with hemodynamic criteria for CS were assigned to standard of care plus TTC vs standard of care alone. The primary outcome was a composite safety outcome, including well-described complications of TTC. Secondary outcomes included mortality at 90 days, invasive hemodynamic and echocardiographic parameters, electrocardiographic measurements, and inotrope dosing. There were no significant differences in the composite analysis of prespecified safety outcomes (3 events in the TTC group vs 0 events in the control group; P = 0.24). Patients randomized to TTC demonstrated a statistically significant increase in cardiac index and cardiac power index compared to the control group at 48-96 hours after randomization (3.6 [3.1, 3.9] L/min/m2 vs 2.6 [2.5, 3.15] L/min/m2; P = 0.029 and 0.61 [0.55, 0.7] W/m2 vs 0.53 [0.435, 0.565] W/m2; P = 0.029, respectively). CONCLUSION TTC may be a safe adjunct therapy for patients presenting with CS and may yield improvement in specific hemodynamic parameters.
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Affiliation(s)
- Nikhil Gupta
- Department of Medicine, University of Chicago, Chicago, IL
| | - Rohan J Kalathiya
- Division of Cardiology, Department of Medicine, Johns Hopkins University, Baltimore, MD
| | | | | | - Maryam Neyestanak
- Section of Cardiology, Department of Medicine, University of Chicago, Chicago, IL
| | | | - Cynthia Arevalo
- Section of Cardiology, Department of Medicine, University of Chicago, Chicago, IL
| | - Janet Friant
- Section of Cardiology, Department of Medicine, University of Chicago, Chicago, IL
| | - John E A Blair
- Division of Cardiology, University of Washington, Seattle, WA
| | - Sandeep Nathan
- Section of Cardiology, Department of Medicine, University of Chicago, Chicago, IL
| | - Atman P Shah
- Section of Cardiology, Department of Medicine, University of Chicago, Chicago, IL
| | - Jonathan Paul
- Section of Cardiology, Department of Medicine, University of Chicago, Chicago, IL.
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11
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Abdulkader RS, Ponnaiah M, Bhatnagar T, S D, Rozario AG, K G, Mohan M, E M, Saravanakumar D, Moorthy A, Tyagi AK, Parmar BD, Devaraja K, Medikeri G, Ojah J, Srivastava K, K K, Das N, B N, Sharma P, Kumar Parida P, Kumar Saravanam P, Kulkarni P, S P, Patil S P, Kumar Bagla R, D R, S Melkundi R, S Satpute S, Narayanan S, Jahagirdar S, Dube S, Kumar Panigrahi S, Babu D S, Saini V, Singh Saxena R, Srivastava A, Chandra Baishya A, Garg A, Kumar Mishra A, Jyoti Talukdar A, Kankaria A, Karat A, Sundaresh Kumar A, Chug A, Vankundre A, Ramaswamy B, MB B, R Jadav B, Dhiwakar M, Ghate G, Shah HV, Saha I, Sivapuram K, J Joshi K, Singh M, Chand Bairwa M, K D, K K, E M, Samagh N, Dinakaran N, Gupta N, Gupta N, M Nagarkar N, Solanki N, Kumar Panda P, Bachalli P, Shanbag R, Patil R, Kumar A R, Narayan Patil R, Thookkanaickenpalayam Vijayaraghavan R, Hanumantappa R, A R, Mandal SK, Kishve SP, Varghese Thomas S, Sarkar S, Thakur S, Patil S, Lakshmanan S, D Rao S, V S, Nayak T, Dixit UR, B U, Backiavathy V, Shenoy V, Hallur VK, Bhatnagar A, Murhekar MV. Baseline findings of a multicentric ambispective cohort study (2021-2022) among hospitalised mucormycosis patients in India. Mycology 2024; 15:70-84. [PMID: 38558844 PMCID: PMC10976993 DOI: 10.1080/21501203.2023.2271928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Accepted: 10/12/2023] [Indexed: 04/04/2024] Open
Abstract
In India, the incidence of mucormycosis reached high levels during 2021-2022, coinciding with the COVID-19 pandemic. In response to this, we established a multicentric ambispective cohort of patients hospitalised with mucormycosis across India. In this paper, we report their baseline profile, clinical characteristics and outcomes at discharge. Patients hospitalized for mucormycosis during March-July 2021 were included. Mucormycosis was diagnosed based on mycological confirmation on direct microscopy (KOH/Calcofluor white stain), culture, histopathology, or supportive evidence from endoscopy or imaging. After consent, trained data collectors used medical records and telephonic interviews to capture data in a pre-tested structured questionnaire. At baseline, we recruited 686 patients from 26 study hospitals, of whom 72.3% were males, 78% had a prior history of diabetes, 53.2% had a history of corticosteroid treatment, and 80% were associated with COVID-19. Pain, numbness or swelling of the face were the commonest symptoms (73.3%). Liposomal Amphotericin B was the commonest drug formulation used (67.1%), and endoscopic sinus surgery was the most common surgical procedure (73.6%). At discharge, the disease was stable in 43.3%, in regression for 29.9% but 9.6% died during hospitalization. Among survivors, commonly reported disabilities included facial disfigurement (18.4%) and difficulties in chewing/swallowing (17.8%). Though the risk of mortality was only 1 in 10, the disability due to the disease was very high. This cohort study could enhance our understanding of the disease's clinical progression and help frame standard treatment guidelines.
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Affiliation(s)
| | | | - Tarun Bhatnagar
- ICMR-National Institute of Epidemiology, Chennai, Tamil Nadu, India
| | - Devika S
- ICMR-National Institute of Epidemiology, Chennai, Tamil Nadu, India
| | | | - Gayathri K
- ICMR-National Institute of Epidemiology, Chennai, Tamil Nadu, India
| | - Malu Mohan
- ICMR-National Institute of Epidemiology, Chennai, Tamil Nadu, India
| | - Michaelraj E
- ICMR-National Institute of Epidemiology, Chennai, Tamil Nadu, India
| | | | - Aditya Moorthy
- Department of Oral and Maxillofacial Surgery, Trustwell Hospitals Private Limited, Bengaluru, Karnataka, India
| | - Amit Kumar Tyagi
- Department of Otorhinolaryngology (ENT), All India Institute of Medical Sciences, Rishikesh, Uttarakhand, India
| | - Bhagirathsinh D Parmar
- Department of Otorhinolaryngology & Head and Neck Surgery (ENT-HNS), CU Shah Medical College, Surendranagar, Gujarat, India
| | - K Devaraja
- Department of Otorhinolaryngology (ENT), Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Gaurav Medikeri
- Department of Skull base Surgery, Healthcare Global Pvt Ltd, Bengaluru, Karnataka, India
| | - Jutika Ojah
- Department of Community Medicine, Gauhati Medical College, Guwahati, Assam, India
| | - Kajal Srivastava
- Department of Community Medicine, Dr D Y Patil Medical College Hospital and Research Centre, Pune, Maharashtra, India
| | - Karthikeyan K
- Department of Community Medicine, PSG Institute of Medical Sciences and Research, Coimbatore, Tamil Nadu, India
| | - Nandini Das
- Department of Pathology, Medical College and Hospital, Kolkata, West Bengal, India
| | - Niharika B
- Department of Community Medicine, Government Medical College, Ananthapuramu, Andhra Pradesh, India
| | - Parul Sharma
- Department of Community Medicine, GMERS Medical College, Dharpur, Patan, Gujarat, India
| | - Pradipta Kumar Parida
- Department of Otorhinolaryngology (ENT), All India Institute of Medical Sciences, Bhubaneshwar, Odisha, India
| | - Prasanna Kumar Saravanam
- Department of Otorhinolaryngology (ENT), Sri Ramachandra Medical College and Research Institute, Porur, Chennai, Tamil Nadu, India
| | - Praveen Kulkarni
- Department of Community Medicine, JSS Medical College, Mysore, Karnataka, India
| | - Priya S
- Department of Community Medicine, Madurai Medical College, Madurai, Tamil Nadu, India
| | - Pushpa Patil S
- Department of Community Medicine, SDM College of Medical Sciences and Hospital, Dharwad, Karnataka, India
| | - Rahul Kumar Bagla
- Department of Otorhinolaryngology (ENT), Government Institute of Medical Sciences, Noida, Uttar Pradesh, India
| | - Ramesh D
- Department of Otorhinolaryngology (ENT), Sundaram Medical Foundation, Dr Rangarajan Memorial Hospital, Chennai, Tamil Nadu, India
| | - Renuka S Melkundi
- Department of Otorhinolaryngology (ENT), Gulbarga Institute of Medical Sciences, Kalaburagi, Karnataka, India
| | - Satish S Satpute
- Department of Otorhinolaryngology & Head and Neck Surgery (ENT-HNS), All India Institute of Medical Sciences, Raipur, Chattisgarh, India
| | - Seetharaman Narayanan
- Department of Community Medicine, KMCH Institute of Health Sciences and Research, Coimbatore, Tamil Nadu, India
| | - Shubhashri Jahagirdar
- Department of Community Medicine, Kasturba Medical College, Mangalore, Manipal Academy of Higher Education, Manipal, India
| | - Simmi Dube
- Department of Medicine, Gandhi Medical College, Bhopal, Madhya Pradesh, India
| | - Sunil Kumar Panigrahi
- Department of Community Medicine, Dr Vasantrao Pawar Medical College, Nashik, Maharashtra, India
| | - Surendra Babu D
- Department of Community Medicine, ESIC Medical College and Hospital, Hyderabad, Telengana, India
| | - Vaibhav Saini
- Department of Otorhinolaryngology (ENT), All India Institute of Medical Sciences, Bathinda, Punjab, India
| | - Rita Singh Saxena
- Department of Medicine, Gandhi Medical College, Bhopal, Madhya Pradesh, India
| | - Abhinav Srivastava
- Department of Otorhinolaryngology (ENT), Government Institute of Medical Sciences, Noida, Uttar Pradesh, India
| | | | - Ajai Garg
- Department of Otorhinolaryngology (ENT), Government Institute of Medical Sciences, Noida, Uttar Pradesh, India
| | - Amit Kumar Mishra
- Department of Otorhinolaryngology & Head and Neck Surgery (ENT-HNS), All India Institute of Medical Sciences, Raipur, Chattisgarh, India
| | - Anjan Jyoti Talukdar
- Department of Community Medicine, Gauhati Medical College, Guwahati, Assam, India
| | - Ankita Kankaria
- Department of Otorhinolaryngology (ENT), All India Institute of Medical Sciences, Bathinda, Punjab, India
| | - Arathi Karat
- Department of Otorhinolaryngology (ENT), Medikeri Super speciality ENT Centre, Bangalore, Karnataka, India
| | - Arul Sundaresh Kumar
- Department of Community Medicine, Madurai Medical College, Madurai, Tamil Nadu, India
| | - Ashi Chug
- Department of Otorhinolaryngology (ENT), All India Institute of Medical Sciences, Rishikesh, Uttarakhand, India
| | - Ashok Vankundre
- Department of Community Medicine, Dr Vasantrao Pawar Medical College, Nashik, Maharashtra, India
| | - Balakrishnan Ramaswamy
- Department of Otorhinolaryngology (ENT), Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Bharathi MB
- Department of Community Medicine, JSS Medical College, Mysore, Karnataka, India
| | - Bhargav R Jadav
- Department of Otorhinolaryngology & Head and Neck Surgery (ENT-HNS), CU Shah Medical College, Surendranagar, Gujarat, India
| | - Muthuswamy Dhiwakar
- Department of Community Medicine, KMCH Institute of Health Sciences and Research, Coimbatore, Tamil Nadu, India
| | - Girija Ghate
- Department of Community Medicine, Dr D Y Patil Medical College Hospital and Research Centre, Pune, Maharashtra, India
| | - Hardik V Shah
- Department of Community Medicine, GMERS Medical College, Dharpur, Patan, Gujarat, India
| | - Ipsita Saha
- Department of Pathology, Medical College and Hospital, Kolkata, West Bengal, India
| | - Kavya Sivapuram
- Department of Community Medicine, JSS Medical College, Mysore, Karnataka, India
| | - Krupal J Joshi
- Department of Ophthalmology, Apollo Specialty Hospitals, Vanagaram, Chennai, India
| | - Mahendra Singh
- Department of Otorhinolaryngology (ENT), All India Institute of Medical Sciences, Rishikesh, Uttarakhand, India
| | - Mukesh Chand Bairwa
- Department of Otorhinolaryngology (ENT), All India Institute of Medical Sciences, Rishikesh, Uttarakhand, India
| | - Divya K
- Department of Community Medicine, PSG Institute of Medical Sciences and Research, Coimbatore, Tamil Nadu, India
| | - Karthikeyan K
- Department of Community Medicine, PSG Institute of Medical Sciences and Research, Coimbatore, Tamil Nadu, India
| | - Muthurajesh E
- Department of Community Medicine, Madurai Medical College, Madurai, Tamil Nadu, India
| | - Navneh Samagh
- Department of Otorhinolaryngology (ENT), All India Institute of Medical Sciences, Bathinda, Punjab, India
| | - Nethra Dinakaran
- Department of Otorhinolaryngology (ENT), Sri Ramachandra Medical College and Research Institute, Porur, Chennai, Tamil Nadu, India
| | - Nikhil Gupta
- Department of Medicine, Gandhi Medical College, Bhopal, Madhya Pradesh, India
| | - Nitin Gupta
- Department of Otorhinolaryngology (ENT), Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Nitin M Nagarkar
- Department of Otorhinolaryngology & Head and Neck Surgery (ENT-HNS), All India Institute of Medical Sciences, Raipur, Chattisgarh, India
| | - Nitin Solanki
- Department of Community Medicine, GMERS Medical College, Dharpur, Patan, Gujarat, India
| | - Prasan Kumar Panda
- Department of Otorhinolaryngology (ENT), All India Institute of Medical Sciences, Rishikesh, Uttarakhand, India
| | - Prithvi Bachalli
- Department of Oral and Maxillofacial Surgery, Trustwell Hospitals Private Limited, Bengaluru, Karnataka, India
| | - Raghunath Shanbag
- Department of Community Medicine, SDM College of Medical Sciences and Hospital, Dharwad, Karnataka, India
| | - Rajashri Patil
- Department of Community Medicine, Dr D Y Patil Medical College Hospital and Research Centre, Pune, Maharashtra, India
| | - Rajesh Kumar A
- Department of Community Medicine, Government Medical College, Ananthapuramu, Andhra Pradesh, India
| | - Rakesh Narayan Patil
- Department of Community Medicine, Dr Vasantrao Pawar Medical College, Nashik, Maharashtra, India
| | | | - Ramesh Hanumantappa
- Department of Otorhinolaryngology (ENT), Gulbarga Institute of Medical Sciences, Kalaburagi, Karnataka, India
| | - Rathinavel A
- Department of Community Medicine, Madurai Medical College, Madurai, Tamil Nadu, India
| | - Saleel Kumar Mandal
- Department of Pathology, Medical College and Hospital, Kolkata, West Bengal, India
| | | | - Sara Varghese Thomas
- Department of Community Medicine, KMCH Institute of Health Sciences and Research, Coimbatore, Tamil Nadu, India
| | - Saurav Sarkar
- Department of Otorhinolaryngology (ENT), All India Institute of Medical Sciences, Bhubaneshwar, Odisha, India
| | - Shalini Thakur
- Department of Skull base Surgery, Healthcare Global Pvt Ltd, Bengaluru, Karnataka, India
| | - Siddaram Patil
- Department of Otorhinolaryngology (ENT), Gulbarga Institute of Medical Sciences, Kalaburagi, Karnataka, India
| | - Somu Lakshmanan
- Department of Community Medicine, Government Medical College, Ananthapuramu, Andhra Pradesh, India
| | - Srinivas D Rao
- Department of Community Medicine, Government Medical College, Ananthapuramu, Andhra Pradesh, India
| | - Sumathi V
- Department of Otorhinolaryngology (ENT), Sundaram Medical Foundation, Dr Rangarajan Memorial Hospital, Chennai, Tamil Nadu, India
| | - Tulasi Nayak
- Department of Oral and Maxillofacial Surgery, Trustwell Hospitals Private Limited, Bengaluru, Karnataka, India
| | - Umesh R Dixit
- Department of Community Medicine, SDM College of Medical Sciences and Hospital, Dharwad, Karnataka, India
| | - Unnikrishnan B
- Department of Community Medicine, Kasturba Medical College, Mangalore, Manipal Academy of Higher Education, Manipal, India
| | - Varsha Backiavathy
- Department of Otorhinolaryngology (ENT), Sundaram Medical Foundation, Dr Rangarajan Memorial Hospital, Chennai, Tamil Nadu, India
| | - Vijendra Shenoy
- Department of Community Medicine, Kasturba Medical College, Mangalore, Manipal Academy of Higher Education, Manipal, India
| | - Vinay Kumar Hallur
- Department of Otorhinolaryngology (ENT), All India Institute of Medical Sciences, Bhubaneshwar, Odisha, India
| | - Aparna Bhatnagar
- Department of Ophthalmology, Apollo Specialty Hospitals, Vanagaram, Chennai, India
| | - Manoj V Murhekar
- ICMR-National Institute of Epidemiology, Chennai, Tamil Nadu, India
- Department of Oral and Maxillofacial Surgery, Trustwell Hospitals Private Limited, Bengaluru, Karnataka, India
- Department of Otorhinolaryngology (ENT), All India Institute of Medical Sciences, Rishikesh, Uttarakhand, India
- Department of Otorhinolaryngology & Head and Neck Surgery (ENT-HNS), CU Shah Medical College, Surendranagar, Gujarat, India
- Department of Otorhinolaryngology (ENT), Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, Karnataka, India
- Department of Skull base Surgery, Healthcare Global Pvt Ltd, Bengaluru, Karnataka, India
- Department of Community Medicine, Gauhati Medical College, Guwahati, Assam, India
- Department of Community Medicine, Dr D Y Patil Medical College Hospital and Research Centre, Pune, Maharashtra, India
- Department of Community Medicine, PSG Institute of Medical Sciences and Research, Coimbatore, Tamil Nadu, India
- Department of Pathology, Medical College and Hospital, Kolkata, West Bengal, India
- Department of Community Medicine, Government Medical College, Ananthapuramu, Andhra Pradesh, India
- Department of Community Medicine, GMERS Medical College, Dharpur, Patan, Gujarat, India
- Department of Otorhinolaryngology (ENT), All India Institute of Medical Sciences, Bhubaneshwar, Odisha, India
- Department of Otorhinolaryngology (ENT), Sri Ramachandra Medical College and Research Institute, Porur, Chennai, Tamil Nadu, India
- Department of Community Medicine, JSS Medical College, Mysore, Karnataka, India
- Department of Community Medicine, Madurai Medical College, Madurai, Tamil Nadu, India
- Department of Community Medicine, SDM College of Medical Sciences and Hospital, Dharwad, Karnataka, India
- Department of Otorhinolaryngology (ENT), Government Institute of Medical Sciences, Noida, Uttar Pradesh, India
- Department of Otorhinolaryngology (ENT), Sundaram Medical Foundation, Dr Rangarajan Memorial Hospital, Chennai, Tamil Nadu, India
- Department of Otorhinolaryngology (ENT), Gulbarga Institute of Medical Sciences, Kalaburagi, Karnataka, India
- Department of Otorhinolaryngology & Head and Neck Surgery (ENT-HNS), All India Institute of Medical Sciences, Raipur, Chattisgarh, India
- Department of Community Medicine, KMCH Institute of Health Sciences and Research, Coimbatore, Tamil Nadu, India
- Department of Community Medicine, Kasturba Medical College, Mangalore, Manipal Academy of Higher Education, Manipal, India
- Department of Medicine, Gandhi Medical College, Bhopal, Madhya Pradesh, India
- Department of Community Medicine, Dr Vasantrao Pawar Medical College, Nashik, Maharashtra, India
- Department of Community Medicine, ESIC Medical College and Hospital, Hyderabad, Telengana, India
- Department of Otorhinolaryngology (ENT), All India Institute of Medical Sciences, Bathinda, Punjab, India
- Department of Otorhinolaryngology (ENT), Medikeri Super speciality ENT Centre, Bangalore, Karnataka, India
- Department of Ophthalmology, Apollo Specialty Hospitals, Vanagaram, Chennai, India
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12
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Das A, Ariyakumar G, Gupta N, Kamdar S, Barugahare A, Deveson-Lucas D, Gee S, Costeloe K, Davey MS, Fleming P, Gibbons DL. Identifying immune signatures of sepsis to increase diagnostic accuracy in very preterm babies. Nat Commun 2024; 15:388. [PMID: 38195661 PMCID: PMC10776581 DOI: 10.1038/s41467-023-44387-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Accepted: 12/12/2023] [Indexed: 01/11/2024] Open
Abstract
Bacterial infections are a major cause of mortality in preterm babies, yet our understanding of early-life disease-associated immune dysregulation remains limited. Here, we combine multi-parameter flow cytometry, single-cell RNA sequencing and plasma analysis to longitudinally profile blood from very preterm babies (<32 weeks gestation) across episodes of invasive bacterial infection (sepsis). We identify a dynamically changing blood immune signature of sepsis, including lymphopenia, reduced dendritic cell frequencies and myeloid cell HLA-DR expression, which characterizes sepsis even when the common clinical marker of inflammation, C-reactive protein, is not elevated. Furthermore, single-cell RNA sequencing identifies upregulation of amphiregulin in leukocyte populations during sepsis, which we validate as a plasma analyte that correlates with clinical signs of disease, even when C-reactive protein is normal. This study provides insights into immune pathways associated with early-life sepsis and identifies immune analytes as potential diagnostic adjuncts to standard tests to guide targeted antibiotic prescribing.
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Affiliation(s)
- A Das
- Peter Gorer Department of Immunobiology, School of Immunology and Microbial Sciences, King's College London, Guy's Hospital, London, UK.
- Division of Infection and Immunity, University College London, London, WC1E 6BT, UK.
| | - G Ariyakumar
- Peter Gorer Department of Immunobiology, School of Immunology and Microbial Sciences, King's College London, Guy's Hospital, London, UK
| | - N Gupta
- Department of Neonatology, Evelina London Neonatal Unit, Guy's and St Thomas' NHS Foundation Trust, London, UK
- Faculty of Life Sciences & Medicine, King's College London, London, UK
| | - S Kamdar
- Peter Gorer Department of Immunobiology, School of Immunology and Microbial Sciences, King's College London, Guy's Hospital, London, UK
| | - A Barugahare
- Bioinformatics Platform and Department of Microbiology, Biomedicine Discovery Institute, Monash University, Clayton, VIC, 3800, Australia
| | - D Deveson-Lucas
- Bioinformatics Platform and Department of Microbiology, Biomedicine Discovery Institute, Monash University, Clayton, VIC, 3800, Australia
| | - S Gee
- Peter Gorer Department of Immunobiology, School of Immunology and Microbial Sciences, King's College London, Guy's Hospital, London, UK
| | - K Costeloe
- Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - M S Davey
- Infection and Immunity Program and Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University, Clayton, VIC, 3800, Australia
- Division of Biomedical Sciences, Warwick Medical School, University of Warwick, Coventry, CV4 7AL, UK
| | - P Fleming
- Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
- Department of Neonatology, Homerton Healthcare NHS Foundation Trust, London, UK
| | - D L Gibbons
- Peter Gorer Department of Immunobiology, School of Immunology and Microbial Sciences, King's College London, Guy's Hospital, London, UK.
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13
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Gruca MM, Slivnick JA, Singh A, Cotella JI, Subashchandran V, Prabhu D, Asch FM, Siddiki M, Gupta N, Mor-Avi V, Su JL, Lang RM. Noninvasive assessment of left ventricular end-diastolic pressure using machine learning-derived phasic left atrial strain. Eur Heart J Cardiovasc Imaging 2023; 25:18-26. [PMID: 37708373 DOI: 10.1093/ehjci/jead231] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 08/16/2023] [Accepted: 09/05/2023] [Indexed: 09/16/2023] Open
Abstract
AIMS While transthoracic echocardiography (TTE) assessment of left ventricular end-diastolic pressure (LVEDP) is critically important, the current paradigm is subject to error and indeterminate classification. Recently, peak left atrial strain (LAS) was found to be associated with LVEDP. We aimed to test the hypothesis that integration of the entire LAS time curve into a single parameter could improve the accuracy of peak LAS in the noninvasive assessment of LVEDP with TTE. METHODS AND RESULTS We retrospectively identified 294 patients who underwent left heart catheterization and TTE within 24 h. LAS curves were trained using machine learning (100 patients) to detect LVEDP ≥ 15 mmHg, yielding the novel parameter LAS index (LASi). The accuracy of LASi was subsequently validated (194 patients), side by side with peak LAS and ASE/EACVI guidelines, against invasive filling pressures. Within the validation cohort, invasive LVEDP was elevated in 116 (59.8%) patients. The overall accuracy of LASi, peak LAS, and American Society of Echocardiography/European Association for Cardiovascular Imaging (ASE/EACVI) algorithm was 79, 75, and 76%, respectively (excluding 37 patients with indeterminate diastolic function by ASE/EACVI guidelines). When the number of LASi indeterminates (defined by near-zero LASi values) was matched to the ASE/EACVI guidelines (n = 37), the accuracy of LASi improved to 87%. Importantly, among the 37 patients with ASE/EACVI-indeterminate diastolic function, LASi had an accuracy of 81%, compared with 76% for peak LAS. CONCLUSION LASi allows the detection of elevated LVEDP using invasive measurements as a reference, at least as accurately as peak LAS and current diastolic function guideline algorithm, with the advantage of no indeterminate classifications in patients with measurable LAS.
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Affiliation(s)
- Martin M Gruca
- Noninvasive Cardiac Imaging Laboratory, University of Chicago Medical Center, 5758 S. Maryland Ave., MC 9067, Chicago, IL 60637, USA
| | - Jeremy A Slivnick
- Noninvasive Cardiac Imaging Laboratory, University of Chicago Medical Center, 5758 S. Maryland Ave., MC 9067, Chicago, IL 60637, USA
| | - Amita Singh
- Department of Cardiology, Northwestern Medicine Central DuPage Hospital, Winfield, IL, USA
| | - Juan I Cotella
- Noninvasive Cardiac Imaging Laboratory, University of Chicago Medical Center, 5758 S. Maryland Ave., MC 9067, Chicago, IL 60637, USA
| | - Varun Subashchandran
- Noninvasive Cardiac Imaging Laboratory, University of Chicago Medical Center, 5758 S. Maryland Ave., MC 9067, Chicago, IL 60637, USA
| | | | - Federico M Asch
- Health Research Institute, MedStar Health and Georgetown University, Washington, DC, USA
| | - Mikail Siddiki
- Noninvasive Cardiac Imaging Laboratory, University of Chicago Medical Center, 5758 S. Maryland Ave., MC 9067, Chicago, IL 60637, USA
| | - Nikhil Gupta
- Noninvasive Cardiac Imaging Laboratory, University of Chicago Medical Center, 5758 S. Maryland Ave., MC 9067, Chicago, IL 60637, USA
| | - Victor Mor-Avi
- Noninvasive Cardiac Imaging Laboratory, University of Chicago Medical Center, 5758 S. Maryland Ave., MC 9067, Chicago, IL 60637, USA
| | | | - Roberto M Lang
- Noninvasive Cardiac Imaging Laboratory, University of Chicago Medical Center, 5758 S. Maryland Ave., MC 9067, Chicago, IL 60637, USA
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14
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Yakhou L, Azogui A, Gupta N, Richard Albert J, Miura F, Ferry L, Yamaguchi K, Battault S, Therizols P, Bonhomme F, Bethuel E, Sarkar A, Greenberg MC, Arimondo P, Cristofari G, Kirsh O, Ito T, Defossez PA. A genetic screen identifies BEND3 as a regulator of bivalent gene expression and global DNA methylation. Nucleic Acids Res 2023; 51:10292-10308. [PMID: 37650637 PMCID: PMC10602864 DOI: 10.1093/nar/gkad719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 07/20/2023] [Accepted: 08/18/2023] [Indexed: 09/01/2023] Open
Abstract
Epigenetic mechanisms are essential to establish and safeguard cellular identities in mammals. They dynamically regulate the expression of genes, transposable elements and higher-order chromatin structures. Consequently, these chromatin marks are indispensable for mammalian development and alterations often lead to disease, such as cancer. Bivalent promoters are especially important during differentiation and development. Here we used a genetic screen to identify new regulators of a bivalent repressed gene. We identify BEND3 as a regulator of hundreds of bivalent promoters, some of which it represses, and some of which it activates. We show that BEND3 is recruited to a CpG-containg consensus site that is present in multiple copies in many bivalent promoters. Besides having direct effect on the promoters it binds, the loss of BEND3 leads to genome-wide gains of DNA methylation, which are especially marked at regions normally protected by the TET enzymes. DNA hydroxymethylation is reduced in Bend3 mutant cells, possibly as consequence of altered gene expression leading to diminished alpha-ketoglutarate production, thus lowering TET activity. Our results clarify the direct and indirect roles of an important chromatin regulator, BEND3, and, more broadly, they shed light on the regulation of bivalent promoters.
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Affiliation(s)
- Lounis Yakhou
- Université Paris Cité, CNRS, Epigenetics and Cell Fate, F-75013 Paris, France
| | - Anaelle Azogui
- Université Paris Cité, CNRS, Epigenetics and Cell Fate, F-75013 Paris, France
| | - Nikhil Gupta
- Université Paris Cité, CNRS, Epigenetics and Cell Fate, F-75013 Paris, France
| | | | - Fumihito Miura
- Department of Biochemistry, Kyushu University Graduate School of Medical Sciences, Fukuoka, Fukuoka 812-8582, Japan
| | - Laure Ferry
- Université Paris Cité, CNRS, Epigenetics and Cell Fate, F-75013 Paris, France
| | - Kosuke Yamaguchi
- Université Paris Cité, CNRS, Epigenetics and Cell Fate, F-75013 Paris, France
| | - Sarah Battault
- Université Paris Cité, CNRS, Epigenetics and Cell Fate, F-75013 Paris, France
| | - Pierre Therizols
- Université Paris Cité, CNRS, Epigenetics and Cell Fate, F-75013 Paris, France
| | - Frédéric Bonhomme
- Institut Pasteur, Université Paris Cité, CNRS, Epigenetic Chemical Biology, UMR 3523, F-75724 Paris, France
| | - Elouan Bethuel
- Université Paris Cité, CNRS, Epigenetics and Cell Fate, F-75013 Paris, France
| | - Arpita Sarkar
- Université Côte d’Azur, Inserm, CNRS, IRCAN, Nice, France
| | | | - Paola B Arimondo
- Institut Pasteur, Université Paris Cité, CNRS, Epigenetic Chemical Biology, UMR 3523, F-75724 Paris, France
| | | | - Olivier Kirsh
- Université Paris Cité, CNRS, Epigenetics and Cell Fate, F-75013 Paris, France
| | - Takashi Ito
- Department of Biochemistry, Kyushu University Graduate School of Medical Sciences, Fukuoka, Fukuoka 812-8582, Japan
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15
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Whitcroft KL, Altundag A, Balungwe P, Boscolo-Rizzo P, Douglas R, Enecilla MLB, Fjaeldstad AW, Fornazieri MA, Frasnelli J, Gane S, Gudziol H, Gupta N, Haehner A, Hernandez AK, Holbrook EH, Hopkins C, Hsieh JW, Huart C, Husain S, Kamel R, Kim JK, Kobayashi M, Konstantinidis I, Landis BN, Lechner M, Macchi A, Mazal PP, Miri I, Miwa T, Mori E, Mullol J, Mueller CA, Ottaviano G, Patel ZM, Philpott C, Pinto JM, Ramakrishnan VR, Roth Y, Schlosser RJ, Stjärne P, Van Gerven L, Vodicka J, Welge-Luessen A, Wormald PJ, Hummel T. Position paper on olfactory dysfunction: 2023. Rhinology 2023; 61:1-108. [PMID: 37454287 DOI: 10.4193/rhin22.483] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/18/2023]
Abstract
BACKGROUND Since publication of the original Position Paper on Olfactory Dysfunction in 2017 (PPOD-17), the personal and societal burden of olfactory disorders has come sharply into focus through the lens of the COVID-19 pandemic. Clinicians, scientists and the public are now more aware of the importance of olfaction, and the impact of its dysfunction on quality of life, nutrition, social relationships and mental health. Accordingly, new basic, translational and clinical research has resulted in significant progress since the PPOD-17. In this updated document, we present and discuss currently available evidence for the diagnosis and management of olfactory dysfunction. Major updates to the current version include, amongst others: new recommendations on olfactory related terminology; new imaging recommendations; new sections on qualitative OD and COVID-19 OD; updated management section. Recommendations were agreed by all co-authors using a modified Delphi process. CONCLUSIONS We have provided an overview of current evidence and expert-agreed recommendations for the definition, investigation, and management of OD. As for our original Position Paper, we hope that this updated document will encourage clinicians and researchers to adopt a common language, and in so doing, increase the methodological quality, consistency, and generalisability of work in this field.
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Affiliation(s)
- K L Whitcroft
- Smell and Taste Clinic, Department of Otorhinolaryngology, TU Dresden, Dresden, Germany
- and UCL Ear Institute, Faculty of Brain Sciences, University College London, London, UK
- and The Centre for Olfactory Research and Applications, Institute of Philosophy, School of Advanced Studies, University of London, London, UK
| | - A Altundag
- Department of Otorhinolaryngology, Istanbul Surgery Hospital, Istanbul, Turkey
| | - P Balungwe
- Faculté de Médecine, Université Catholique de Bukavu, Bukavu, Democratic Republic of the Congo
- and Hôpital Provincial Général de Référence de Bukavu, Bukavu, Democratic Republic of the Congo
| | - P Boscolo-Rizzo
- Department of Medical, Surgical and Health Sciences, Section of Otolaryngology, University of Trieste, Trieste, Italy
| | - R Douglas
- Department of Otorhinolaryngology, University of Auckland, New Zealand
| | - M L B Enecilla
- Department of Otorhinolaryngology-Head and Neck Surgery, St. Luke's Medical Center, Global City, Philippines
- and Department of Otolaryngology - Head and Neck Surgery, Asian Hospital and Medical Center, Muntinlupa, Philippines
- and Department of Otorhinolaryngology, Medical Center Taguig, Taguig, Philippines
| | - A W Fjaeldstad
- The Centre for Olfactory Research and Applications, Institute of Philosophy, School of Advanced Studies, University of London, London, UK
- and Department of Otorhinolaryngology, University Clinic for Flavour, Balance and Sleep, Regional Hospital Gødstrup, Herning, Denmark
- and Department of Clinical Medicine, Flavour Institute, Aarhus University, Aarhus, Denmark
- and Center for Eudaimonia and Human Flourishing, Linacre College, University of Oxford, Oxford, UK
| | - M A Fornazieri
- Department of Clinical Surgery, Universidade Estadual de Londrina and Pontifícia Universidade Católica do Paraná, Londrina, Brazil
| | - J Frasnelli
- Research Chair in Chemosensory Neuroanatomy, Department of Anatomy, Université du Québec à Trois-Rivières, Trois-Rivières, QC, Canada
- and Centre for Advanced Research in Sleep Medicine, Hôpital du Sacré-Coeur de Montréal, Montréal, QC, Canada
| | - S Gane
- The Centre for Olfactory Research and Applications, Institute of Philosophy, School of Advanced Studies, University of London, London, UK
- and Royal National Throat Nose and Ear Hospital, UCLH, London
| | - H Gudziol
- Department of Otorhinolaryngology, University of Jena, Jena, Germany
| | - N Gupta
- Department of Otorhinolaryngology, University College of Medical Sciences and GTB Hospital, Delhi, India
| | - A Haehner
- Smell and Taste Clinic, Department of Otorhinolaryngology, TU Dresden, Dresden, Germany
| | - A K Hernandez
- Smell and Taste Clinic, Department of Otorhinolaryngology, TU Dresden, Dresden, Germany
- and Department of Otolaryngology - Head and Neck Surgery, Asian Hospital and Medical Center, Muntinlupa, Philippines
- and Department of Otolaryngology - Head and Neck Surgery, Philippine General Hospital, University of the Philippines - Manila, Manila, Philippines
| | - E H Holbrook
- Department of Otolaryngology, Massachusetts Eye and Ear Infirmary, Harvard Medical School, Boston, MA, USA
| | - C Hopkins
- Guys and St Thomas NHS Trust, London, United Kingdom
| | - J W Hsieh
- Rhinology-Olfactology Unit, Department of Otorhinolaryngology-Head and Neck Surgery, University Hospital of Geneva Medical School, Geneva, Switzerland
| | - C Huart
- Department of Otorhinolaryngology, Cliniques universitaires Saint-Luc, Brussels, Belgium
- and Institute of Neuroscience, Université catholique de Louvain, Brussels, Belgium
| | - S Husain
- Department of Otorhinolaryngology-Head and Neck Surgery, Faculty of Medicine, National University of Malaysia, Kuala Lumpur, Malaysia
| | - R Kamel
- Department of Otorhinolaryngology, Cairo University, Cairo, Egypt
| | - J K Kim
- Department of Otorhinolaryngology-Head and Neck Surgery, Konkuk University, College of Medicine, Seoul, Republic of Korea
| | - M Kobayashi
- Department of Otorhinolaryngology-Head and Neck Surgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan
| | - I Konstantinidis
- Smell and Taste Clinic, Second Academic Otorhinolaryngology Department, Papageorgiou Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - B N Landis
- Rhinology-Olfactology Unit, Department of Otorhinolaryngology-Head and Neck Surgery, University Hospital of Geneva Medical School, Geneva, Switzerland
| | - M Lechner
- Division of Surgery and Interventional Science, University College London, London, UK
- and UCL Cancer Institute, University College London, London, UK
- and ENT Department, Homerton Healthcare NHS Foundation Trust, London, UK
| | - A Macchi
- ENT Clinic, University of Insubria, ASST Sette Laghi, Varese, Italy
| | - P P Mazal
- Servicio de Otorrinolaringología, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | - I Miri
- Service Médecine Physique Réadaptation fonctionnelle, Institut Mohamed Kassab d'Orthopédie, Mannouba, Tunisia
| | - T Miwa
- Department of Otorhinolaryngology, Kanazawa Medical University, Uchinada, Kahoku, Ishikawa, Japan
| | - E Mori
- Department of Otorhinolaryngology, Jikei University, School of Medicine, Tokyo, Japan
| | - J Mullol
- Rhinology Unit and Smell Clinic, ENT Department, Hospital Clínic, Universitat de Barcelona
- IDIBAPS
- CIBERES. Barcelona, Catalonia, Spain
| | - C A Mueller
- Department of Otorhinolaryngology, Medical University of Vienna, Vienna, Austria
| | - G Ottaviano
- Department of Neurosciences DNS, Otolaryngology Section, University, Padua, Italy
| | - Z M Patel
- Department of Otolaryngology, Stanford University School of Medicine, Stanford, California, USA
| | - C Philpott
- Norwich Medical School, University of East Anglia, Norwich, UK
- and The Smell and Taste Clinic, James Paget University Hospital, Gorleston, UK
| | - J M Pinto
- Section of Otolaryngology-Head and Neck Surgery, The University of Chicago Medicine and Biological Sciences, Chicago, IL, USA
| | - V R Ramakrishnan
- Department of Otolaryngology-Head and Neck Surgery, Indiana University of School Medicine, Indianapolis, IN, USA
| | - Y Roth
- The Institute for Nose and Sinus Therapy and Clinical Investigations, Department of Otolaryngology - Head and Neck Surgery, Edith Wolfson Medical Center, Tel Aviv University Sackler Faculty of Medicine, Holon, Israel
| | - R J Schlosser
- Department of Otolaryngology - Head and Neck Surgery, Medical University of South Carolina, Charleston, SC, USA
| | - P Stjärne
- Section of Rhinology, Department of Otorhinolaryngology, Karolinska University Hospital and Karolinska Institute, Stockholm, Sweden
| | - L Van Gerven
- Department of Otorhinolaryngology, UZ Leuven, Belgium
- and Department of Neurosciences, Experimental Otorhinolaryngology, KU Leuven, Belgium
- and Department of Microbiology, Immunology and Transplantation, Allergy and Clinical Immunology Research Unit, KU Leuven, Belgium
| | - J Vodicka
- Department of Otorhinolaryngology and Head and Neck Surgery, Hospital Pardubice, Faculty of Health Studies, University of Pardubice, Pardubice, Czech Republic
| | - A Welge-Luessen
- University Hospital Basel - Otorhinolaryngology, Basel, Switzerland
| | - P J Wormald
- Department of Surgery-Otorhinolaryngology Head and Neck Surgery, University of Adelaide, Adelaide, SA, Australia
| | - T Hummel
- Smell and Taste Clinic, Department of Otorhinolaryngology, TU Dresden, Dresden, Germany
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Oduoye MO, Javed B, Gupta N, Valentina Sih CM. Algorithmic bias and research integrity; the role of nonhuman authors in shaping scientific knowledge with respect to artificial intelligence: a perspective. Int J Surg 2023; 109:2987-2990. [PMID: 37318857 PMCID: PMC10583945 DOI: 10.1097/js9.0000000000000552] [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: 04/15/2023] [Accepted: 06/02/2023] [Indexed: 06/17/2023]
Abstract
Artificial intelligence technologies were developed to assist authors in bettering the organization and caliber of their published papers, which are both growing in quantity and sophistication. Even though the usage of artificial intelligence tools in particular ChatGPT's natural language processing systems has been shown to be beneficial in research, there are still concerns about accuracy, responsibility, and transparency when it comes to the norms regarding authorship credit and contributions. Genomic algorithms quickly examine large amounts of genetic data to identify potential disease-causing mutations. By analyzing millions of medications for potential therapeutic benefits, they can quickly and relatively economically find novel approaches to treatment. Researchers from several fields can collaborate on difficult tasks with the assistance of nonhuman writers, promoting interdisciplinary research. Sadly, there are a number of significant disadvantages associated with employing nonhuman authors, including the potential for algorithmic prejudice. Biased data may be reinforced by the algorithm since machine learning algorithms can only be as objective as the data they are trained on. It is overdue that scholars bring forth basic moral concerns in the fight against algorithmic prejudice. Overall, even if the use of nonhuman authors has the potential to significantly improve scientific research, it is crucial for scientists to be aware of these drawbacks and take precautions to avoid bias and limits. To provide accurate and objective results, algorithms must be carefully designed and implemented, and researchers need to be mindful of the larger ethical ramifications of their usage.
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Affiliation(s)
- Malik Olatunde Oduoye
- College of Medical Sciences, Ahmadu Bello University Teaching Hospital, Shika, Kaduna State, Nigeria
- Department of Medical Research, Medical Research Circle, Bukavu, Democratic Republic of Congo
| | - Binish Javed
- Department of Medical Research, Medical Research Circle, Bukavu, Democratic Republic of Congo
- Atal Bihari Vajpayee Institute of Medical Sciences and Dr Ram Manohar Lohia Hospital, New Delhi, India
| | - Nikhil Gupta
- Atal Bihari Vajpayee Institute of Medical Sciences and Dr Ram Manohar Lohia Hospital, New Delhi, India
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Ganapati A, Arya S, Gupta N, Patil A, Chebbi P, Doley D, Jeevanagi SR, Sahu R, Mandal SK. Do Tofacitinib Generics Exhibit Conventional Synthetic Disease-Modifying Anti-rheumatic Drug and Non-steroidal Anti-inflammatory Drug-Sparing Ability in the Management of Axial Spondyloarthritis? Cureus 2023; 15:e46391. [PMID: 37927736 PMCID: PMC10620471 DOI: 10.7759/cureus.46391] [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: 09/29/2023] [Indexed: 11/07/2023] Open
Abstract
INTRODUCTION Tofacitinib has emerged as a therapeutic option for axial spondyloarthritis (axSpA) following successful clinical trials. The evidence on the efficacy of tofacitinib generics in the management of axSpA is limited. In India, the usage of conventional synthetic disease-modifying anti-rheumatic drugs (csDMARDs) is commonplace in the management of axSpA. Our primary aim was to identify the csDMARD and non-steroidal anti-inflammatory drug (NSAID)-sparing role of tofacitinib generics in an axSpA population. METHODS This was a retrospective study in a real-world clinical setting. Data from nine rheumatology centers across India were analyzed for 168 patients with active axSpA who were initiated on generic tofacitinib 5 mg twice daily in conjunction with csDMARDs and NSAIDs, over a duration of six months. Our primary outcome was to evaluate the csDMARD and NSAID-sparing effect of tofacitinib generics, while the secondary outcome assessed safety profiles and efficacy at six months. RESULTS The median Ankylosing Spondylitis Disease Activity Score (ASDAS) erythrocyte sedimentation rate (ESR) score of the study population was 3.91 (3.26, 4.56). Alongside tofacitinib generics, 121 (72%) patients were co-administered csDMARDs (methotrexate/sulfasalazine/both), and 90 (53.6%) patients were co-administered NSAIDs. The csDMARD, NSAID, and combined csDMARD + NSAID-sparing effects of tofacitinib generics were seen in 85 (50.6%), 156 (92.9%), and 81 (48.2%) patients, respectively. Adverse events were mild and well-tolerated. At six months, 124 (57.9%) patients had attained clinically important improvement in ASDAS ESR score, and the median decrease in ASDAS ESR score was 2.02 (1.18, 2.96). CONCLUSION This real-world study provides evidence supporting the csDMARD and NSAID-sparing ability of tofacitinib generics in the treatment of axSpA. Tofacitinib generics displayed a good safety profile and showed signals of efficacy as well.
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Affiliation(s)
- Arvind Ganapati
- General Medicine/Rheumatology, Kasturba Medical College, Manipal, IND
- Rheumatology and Clinical Immunology, All India Institute of Medical Sciences, Mangalagiri, Guntur, IND
| | | | - Nikhil Gupta
- Rheumatology, Saroj Super Speciality Hospital, New Delhi, IND
- Rheumatology, Sant Parmanand Hospital, New Delhi, IND
| | | | - Pramod Chebbi
- Rheumatology, SDM (Shri Dharmasthala Manjunatheshwara) College of Medical Sciences and Hospital, SDM University, Dharwad, IND
| | - Daisy Doley
- Rheumatology, Assam Medical College and Hospital, Dibrugarh, IND
| | - Sachin R Jeevanagi
- Rheumatology, Gurusharan Arthritis & Rheumatology Clinic, Kalaburagi, IND
| | - Rahul Sahu
- Rheumatology, People's College of Medical Sciences & Research Centre, Bhopal, IND
| | - Santosh K Mandal
- Rheumatology, Narayana Health, Rabindranath Tagore International Institute of Cardiac Sciences, Kolkata, IND
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18
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Jain S, Cetnar A, Woollard J, Gupta N, Blakaj D, Chakravarti A, Ayan AS. Pulse parameter optimizer: an efficient tool for achieving prescribed dose and dose rate with electron FLASH platforms. Phys Med Biol 2023; 68:19NT01. [PMID: 37735967 DOI: 10.1088/1361-6560/acf63e] [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: 04/24/2023] [Accepted: 09/01/2023] [Indexed: 09/23/2023]
Abstract
Purpose. Commercial electron FLASH platforms deliver ultra-high dose rate doses at discrete combinations of pulse parameters including pulse width (PW), pulse repetition frequency (PRF) and number of pulses (N), which dictate unique combinations of dose and dose rates. Additionally, collimation, source to surface distance, and airgaps also vary the dose per pulse (DPP). Currently, obtaining pulse parameters for the desired dose and dose rate is a cumbersome manual process involving creating, updating, and looking up values in large spreadsheets for every treatment configuration. This work presents a pulse parameter optimizer application to match intended dose and dose rate precisely and efficiently.Methods. Dose and dose rate calculation methods have been described for a commercial electron FLASH platform. A constrained optimization for the dose and dose rate cost function was modelled as a mixed integer problem in MATLAB (The MathWorks Inc., Version9.13.0 R2022b, Natick, Massachusetts). The beam and machine data required for the application were acquired using GafChromic film and alternating current current transformers (ACCTs). Variables for optimization included DPP for every collimator, PW and PRF measured using ACCT and airgap factors.Results. Using PW, PRF,Nand airgap factors as parameters, a software was created to optimize dose and dose rate, reaching the closest match if exact dose and dose rates are not achievable. Optimization took 20 s or less to converge to results. This software was validated for accuracy of dose calculation and precision in matching prescribed dose and dose rate.Conclusion. A pulse parameter optimization application was built for a commercial electron FLASH platform to increase efficiency in dose, dose rate, and pulse parameter prescription process. Automating this process reduces safety concerns associated with manual look up and calculation of these parameters, especially when many subjects at different doses and dose rates are to be safely managed.
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Affiliation(s)
- S Jain
- The Department of Radiation Oncology, The Ohio State University Wexner Medical Center, United States of America
| | - A Cetnar
- The Department of Radiation Oncology, The Ohio State University Wexner Medical Center, United States of America
| | - J Woollard
- The Department of Radiation Oncology, The Ohio State University Wexner Medical Center, United States of America
| | - N Gupta
- The Department of Radiation Oncology, The Ohio State University Wexner Medical Center, United States of America
| | - D Blakaj
- The Department of Radiation Oncology, The Ohio State University Wexner Medical Center, United States of America
| | - A Chakravarti
- The Department of Radiation Oncology, The Ohio State University Wexner Medical Center, United States of America
| | - A S Ayan
- The Department of Radiation Oncology, The Ohio State University Wexner Medical Center, United States of America
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Abstract
Intussusception in adults represents 1% of bowel obstructions and up to 0.02% of all hospital admissions. Amongst these, colo-colic intussusception of the descending colon forms the rarest of causes due to the fixed nature of the descending colon. Most of adult intussusceptions follow a lead point and are commonly due to colonic malignancy which may get missed on pre-operative evaluation. Surgery is usually warranted as these patients are usually symptomatic and at risk of vascular compromise, leading to perforations and obscure malignancies. We present a case of laparoscopic limited hemicolectomy and primary anastomosis in a middle-aged male who presented with colo-colic intussusception, which appeared to be following a malignant mass on imaging and lipoma on colonoscopic biopsy done twice. Keeping in mind the possibility of a malignant lead point, no attempt was made to reduce the intussusception and a vessel first approach with 5 cm margin on either side was performed.
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Affiliation(s)
- Akash Akash
- Department of Surgery, Atal Bihari Vajpayee Institute of Medical Sciences, Dr. Ram Manohar Lohia Hospital, New Delhi, India
| | - Aditya Kumar
- Department of Surgical Disciplines, All India Institute of Medical Sciences, New Delhi, India
| | - Nikhil Gupta
- Department of Surgery, Atal Bihari Vajpayee Institute of Medical Sciences, Dr. Ram Manohar Lohia Hospital, New Delhi, India
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Abstract
Zika virus (ZIKV) is an arthropod-borne flavivirus that presents with acute febrile illness associated with rash, arthralgia and conjunctivitis. After years of sporadic reports in Africa, the three major outbreaks of this disease occurred in Yap Islands (2007), French Polynesia (2013-14) and South Americas (2015-16). Although, serological surveys suggested the presence of ZIKV in India in 1950s, cross-reactivity could not be ruled out. The first four proven cases of ZIKV from India were reported in 2017. This was followed by major outbreaks in the states of Rajasthan and Madhya Pradesh in 2018. Fortunately, the outbreaks in India were not associated with neurological complications. These outbreaks in India highlighted the spread of this disease beyond geographical barriers owing to the growing globalization, increased travel and ubiquitous presence of its vector, the Aedes mosquito. In this review, we discuss the epidemiology, clinical features and management of ZIKV in India.
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Affiliation(s)
- N Gupta
- From the Department of Medicine, All India Institute of Medical Sciences, 3rd Floor, Teaching Block, New Delhi 110029
| | - P Kodan
- From the Department of Medicine, All India Institute of Medical Sciences, 3rd Floor, Teaching Block, New Delhi 110029
| | - K Baruah
- National Vector Borne Disease Control Programme, Ministry of Health and Family Welfare, Government of India, 22 Shyam Nath Marg, New Delhi 110054, India
| | - M Soneja
- From the Department of Medicine, All India Institute of Medical Sciences, 3rd Floor, Teaching Block, New Delhi 110029
| | - A Biswas
- From the Department of Medicine, All India Institute of Medical Sciences, 3rd Floor, Teaching Block, New Delhi 110029
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21
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Gupta N, Yakhou L, Albert JR, Azogui A, Ferry L, Kirsh O, Miura F, Battault S, Yamaguchi K, Laisné M, Domrane C, Bonhomme F, Sarkar A, Delagrange M, Ducos B, Cristofari G, Ito T, Greenberg MVC, Defossez PA. A genome-wide screen reveals new regulators of the 2-cell-like cell state. Nat Struct Mol Biol 2023; 30:1105-1118. [PMID: 37488355 DOI: 10.1038/s41594-023-01038-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Accepted: 06/19/2023] [Indexed: 07/26/2023]
Abstract
In mammals, only the zygote and blastomeres of the early embryo are totipotent. This totipotency is mirrored in vitro by mouse '2-cell-like cells' (2CLCs), which appear at low frequency in cultures of embryonic stem cells (ESCs). Because totipotency is not completely understood, we carried out a genome-wide CRISPR knockout screen in mouse ESCs, searching for mutants that reactivate the expression of Dazl, a gene expressed in 2CLCs. Here we report the identification of four mutants that reactivate Dazl and a broader 2-cell-like signature: the E3 ubiquitin ligase adaptor SPOP, the Zinc-Finger transcription factor ZBTB14, MCM3AP, a component of the RNA processing complex TREX-2, and the lysine demethylase KDM5C. All four factors function upstream of DPPA2 and DUX, but not via p53. In addition, SPOP binds DPPA2, and KDM5C interacts with ncPRC1.6 and inhibits 2CLC gene expression in a catalytic-independent manner. These results extend our knowledge of totipotency, a key phase of organismal life.
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Affiliation(s)
- Nikhil Gupta
- Epigenetics and Cell Fate, Université Paris Cité, CNRS, Paris, France.
- Joint AZ CRUK Functional Genomics Centre, The Milner Therapeutics Institute, Jeffrey Cheah Biomedical Centre, University of Cambridge, Cambridge, UK.
| | - Lounis Yakhou
- Epigenetics and Cell Fate, Université Paris Cité, CNRS, Paris, France
| | | | - Anaelle Azogui
- Epigenetics and Cell Fate, Université Paris Cité, CNRS, Paris, France
| | - Laure Ferry
- Epigenetics and Cell Fate, Université Paris Cité, CNRS, Paris, France
| | - Olivier Kirsh
- Epigenetics and Cell Fate, Université Paris Cité, CNRS, Paris, France
| | - Fumihito Miura
- Department of Biochemistry, Kyushu University Graduate School of Medical Sciences, Fukuoka, Fukuoka, Japan
| | - Sarah Battault
- Epigenetics and Cell Fate, Université Paris Cité, CNRS, Paris, France
| | - Kosuke Yamaguchi
- Epigenetics and Cell Fate, Université Paris Cité, CNRS, Paris, France
| | - Marthe Laisné
- Epigenetics and Cell Fate, Université Paris Cité, CNRS, Paris, France
| | - Cécilia Domrane
- Epigenetics and Cell Fate, Université Paris Cité, CNRS, Paris, France
| | - Frédéric Bonhomme
- Epigenetic Chemical Biology, UMR3523, Institut Pasteur, Université Paris Cité, CNRS, Paris, France
| | - Arpita Sarkar
- IRCAN, Université Côte d'Azur, Inserm, CNRS, Nice, France
| | - Marine Delagrange
- High Throughput qPCR Facility, Institut de Biologie de l'École Normale Supérieure (IBENS), Laboratoire de Physique de l'ENS CNRS UMR8023, PSL Research University, Paris, France
| | - Bertrand Ducos
- High Throughput qPCR Facility, Institut de Biologie de l'École Normale Supérieure (IBENS), Laboratoire de Physique de l'ENS CNRS UMR8023, PSL Research University, Paris, France
| | | | - Takashi Ito
- Department of Biochemistry, Kyushu University Graduate School of Medical Sciences, Fukuoka, Fukuoka, Japan
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Panwar V, Gupta N, Bhoriwal SK. Left main bronchus completely occluded by tumour fragment following right pneumonectomy. Anaesth Rep 2023; 11:e12261. [PMID: 38028659 PMCID: PMC10680573 DOI: 10.1002/anr3.12261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/02/2023] [Indexed: 12/01/2023] Open
Affiliation(s)
- V. Panwar
- Department of Onco‐Anaesthesia and Palliative MedicineDr. B.R.A. Institute‐Rotary Cancer Hospital, All India Institute of Medical SciencesNew DelhiIndia
| | - N. Gupta
- Department of Onco‐Anaesthesia and Palliative MedicineDr. B.R.A. Institute‐Rotary Cancer Hospital, All India Institute of Medical SciencesNew DelhiIndia
| | - S. K. Bhoriwal
- Department of Surgical OncologyDr. B.R.A. Institute‐Rotary Cancer Hospital, All India Institute of Medical SciencesNew DelhiIndia
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van Riel L, van Hulst RA, van Hest L, van Moorselaar RJA, Boerrigter BG, Franken SM, Wolthuis RMF, Dubbink HJ, Marciniak SJ, Gupta N, van de Beek I, Houweling AC. Recommendations on scuba diving in Birt-Hogg-Dubé syndrome. Expert Rev Respir Med 2023; 17:1003-1008. [PMID: 37991821 PMCID: PMC10763569 DOI: 10.1080/17476348.2023.2284375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Accepted: 11/10/2023] [Indexed: 11/23/2023]
Abstract
INTRODUCTION Although very uncommon, severe injury and death can occur during scuba diving. One of the main causes of scuba diving fatalities is pulmonary barotrauma due to significant changes in ambient pressure. Pathology of the lung parenchyma, such as cystic lesions, might increase the risk of pulmonary barotrauma. AREAS COVERED Birt-Hogg-Dubé syndrome (BHD), caused by pathogenic variants in the FLCN gene, is characterized by skin fibrofolliculomas, an increased risk of renal cell carcinoma, multiple lung cysts and spontaneous pneumothorax. Given the pulmonary involvement, in some countries patients with BHD are generally recommended to avoid scuba diving, although evidence-based guidelines are lacking. We aim to provide recommendations on scuba diving for patients with BHD, based on a survey of literature on pulmonary cysts and pulmonary barotrauma in scuba diving. EXPERT OPINION In our opinion, although the absolute risks are likely to be low, caution is warranted. Given the relative paucity of literature and the potential fatal outcome, patients with BHD with a strong desire for scuba diving should be informed of the potential risks in a personal assessment. If available a diving physician should be consulted, and a low radiation dose chest computed tomography (CT)-scan to assess pulmonary lesions could be considered.
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Affiliation(s)
- L. van Riel
- Department of Human Genetics, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
- Department of Human Genetics, Amsterdam UMC, Vrije Universiteit Amsterdam, Cancer Center Amsterdam, Amsterdam, Netherlands
| | - RA. van Hulst
- Department of Hyperbaric Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
| | - L. van Hest
- Department of Human Genetics, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
| | - RJA. van Moorselaar
- Department of Urology, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | - BG. Boerrigter
- Department of Pulmonary Medicine, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | - SM. Franken
- Department of Dermatology, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
| | - RMF. Wolthuis
- Department of Human Genetics, Amsterdam UMC, Vrije Universiteit Amsterdam, Cancer Center Amsterdam, Amsterdam, Netherlands
| | - HJ. Dubbink
- Department of Pathology, Erasmus MC, University Medical Center Rotterdam, Rotterdam, Netherlands
| | - SJ. Marciniak
- Cambridge Institute for Medical Research, Cambridge Biomedical Campus, University of Cambridge, Cambridge, UK
- Royal Papworth Hospital, Trumpington, Cambridge, UK
| | - N. Gupta
- Division of Pulmonary, Critical Care and Sleep Medicine, University of Cincinnati, Cincinnati, Ohio, USA
| | - I. van de Beek
- Family Cancer Clinic, Netherlands Cancer Institute, Amsterdam, Netherlands
| | - AC. Houweling
- Department of Human Genetics, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
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George E, MacPherson C, Pruthi S, Bilaniuk L, Fletcher J, Houtrow A, Gupta N, Glenn OA. Long-Term Imaging Follow-up from the Management of Myelomeningocele Study. AJNR Am J Neuroradiol 2023:ajnr.A7926. [PMID: 37385677 PMCID: PMC10337608 DOI: 10.3174/ajnr.a7926] [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: 04/18/2023] [Accepted: 05/23/2023] [Indexed: 07/01/2023]
Abstract
BACKGROUND AND PURPOSE Short-term results demonstrate that prenatal repair of a myelomeningocele is associated with a reduction in hydrocephalus and an increased likelihood of the reversal of Chiari II malformations compared with postnatal repair. The purpose of this study was to identify the long-term imaging findings at school age among subjects who underwent pre- versus postnatal repair of a myelomeningocele. MATERIALS AND METHODS A subset of subjects enrolled in the Management of Myelomeningocele Study who underwent either prenatal (n = 66) or postnatal (n = 63) repair of a lumbosacral myelomeningocele and had follow-up brain MR imaging at school age were included. The prevalence of posterior fossa features of Chiari II malformation and supratentorial abnormalities and the change in these findings from fetal to school-age MR imaging were compared between the 2 groups. RESULTS Prenatal repair of a myelomeningocele was associated with higher rates of normal location of fourth ventricle and lower rates of hindbrain herniation, cerebellar herniation, tectal beaking, brainstem distortion, and kinking at school age compared with postnatal repair (all P < .01). Supratentorial abnormalities, including corpus callosal abnormalities, gyral abnormalities, heterotopia, and hemorrhage, were not significantly different between the 2 groups (all P > .05). The rates of resolution of brainstem kinking, tectal beaking, cerebellar and hindbrain herniation, and normalization of fourth ventricle size from fetal to school age MR imaging were higher among the prenatal compared with postnatal surgery group (all, P < .02). CONCLUSIONS Prenatal repair of a myelomeningocele is associated with persistent improvement in posterior fossa imaging findings of Chiari II malformation at school age compared with postnatal repair.
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Affiliation(s)
- E George
- From the Departments of Radiology and Biomedical Imaging (E.G., O.A.G.)
| | - C MacPherson
- Biostatistics Center (C.M.), Milken Institute School of Public Health, The George Washington University, Washington, DC
| | - S Pruthi
- Department of Radiology (S.P.), Monroe Carell Jr. Children's Hospital at Vanderbilt, Nashville, Tennessee
| | - L Bilaniuk
- Department of Radiology (L.B.), Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - J Fletcher
- Department of Psychology (J.F.), University of Houston, Houston, Texas
| | - A Houtrow
- Department of Physical Medicine and Rehabilitation (A.H.), University of Pittsburgh, Pittsburgh, Pennsylvania
| | - N Gupta
- Neurological Surgery (N.G.)
- Pediatrics (N.G.), University of California, San Francisco, San Francisco, California
| | - O A Glenn
- From the Departments of Radiology and Biomedical Imaging (E.G., O.A.G.)
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Srivastava S, Tiwari V, Singh S, Karoli R, Bhattacharya P, Gupta N. Low Serum Levels of Zinc, Selenium, and Vitamin D3 Are Biomarkers of Airway Inflammation and Poor Asthma Control: A Two-Centre Study. Cureus 2023; 15:e41082. [PMID: 37519504 PMCID: PMC10376916 DOI: 10.7759/cureus.41082] [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: 06/28/2023] [Indexed: 08/01/2023] Open
Abstract
Background Asthma is a chronic inflammatory disease with its control being affected by underlying oxidative stress. Trace elements, along with vitamin D3, play an important role in immune alterations leading to an imbalance of Th1/Th2 helper cells. However, their role in asthma pathogenesis and control is inconsistent and inconclusive. The objective of our study was to assess levels of serum trace elements like zinc, copper, selenium, iron, magnesium, vitamin D3 levels, IgE, and HsCRP in asthmatic children, compare with healthy controls, and assess their association with the level of asthma control. Methods A cross-sectional study was conducted from 2019 to 2021 enrolling 100 asthmatic children and 75 healthy controls. The level of asthma control was assessed as uncontrolled, partly controlled, and controlled asthma as per GINA Guidelines. Mean and standard deviation were calculated for each element and mean differences between groups were analyzed by student t-test. A p-value of <0.05 was considered significant. Results The mean age was 8.75±2.89 yrs in cases and 9.04±2.79 in controls. A total of 57.6% of cases had atopic comorbidities. The mean serum zinc levels were 51±12.8 mg/dl, which was very low in asthmatic children as compared to 60±18.2mg/dl (p-value 0.0002) in healthy controls. Serum selenium was 13±3 µg/dl in asthmatics vs. 15±4 µg/dl (p-value 0.0002) in healthy controls. Serum copper was 115.2±21.92µg/dl vs. 125.3±31.99µg/dl (p-value 0.015), Serum vitamin D3 levels were 13.07±7.82ng/ml vs. 17.82±14.62 ng/ml(p-value 0.006) in both groups, respectively. SIgE and HsCRP were high in asthmatic children suggestive of eosinophilic inflammation. Serum zinc was 49±5.45 mg/dl in the uncontrolled group, 53±6.1 in the partly controlled, and 58±8.0 in the well-controlled group (p<0.0001). Serum selenium was 10± 3.0 µg/dl in the uncontrolled group vs. 13± 2.0 and 14± 2.0 µg/dl in the partly controlled and well-controlled groups, respectively (p-value <0.0001). Vitamin D3 was significantly low (9.32±5.95ng/dl) in the uncontrolled group vs. 12.99±4.97 and 13.40±5.92 ng/dl(p<0.005) in the partly controlled and well-controlled groups respectively. Vitamin D3 showed a strong positive correlation with zinc (r=0.4,p< 0.0001) and a negative correlation with inflammatory markers like SIgE and HsCRP. Conclusion Children with asthma had low zinc, selenium, and vitamin D3 levels, and were associated with airway inflammation and poor asthma control.
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Affiliation(s)
| | - Vandana Tiwari
- Biochemistry, Dr. Ram Manohar Lohia Institute of Medical Sciences, Lucknow, IND
| | - Shivani Singh
- Biochemistry, Dr. Ram Manohar Lohia Institute of Medical Sciences, Lucknow, IND
| | - Ritu Karoli
- Medicine, Dr. Ram Manohar Lohia Institute of Medical Sciences, Lucknow, IND
| | - Piyali Bhattacharya
- Pediatrics, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, IND
| | - Nikhil Gupta
- Medicine, Dr. Ram Manohar Lohia Institute of Medical Sciences, Lucknow, IND
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Gupta N, Dahiya S, Bansal P, Kumar S, Agarwal AK. A Study of Thyroid Profile and Lipid Profile in Patients with Chronic Kidney Disease with or without Hemodialysis in a Tertiary Care Hospital. J Assoc Physicians India 2023; 71:11-12. [PMID: 37355813 DOI: 10.5005/japi-11001-0254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/26/2023]
Abstract
BACKGROUND Chronic kidney disease (CKD), due to increasing frequency and prevalence, has become one of the leading public health issues. The Kidney Disease Outcome Quality Initiative (KDOQI) defines CKD as kidney injury or a reduction in the glomerular filtration rate (GFR) to <60 mL/minute/1.73 m2 for at least 3 months. This study aims to compare the effects of decreased renal function on thyroid profile and lipid profile in CKD patients. MATERIALS AND METHODS This is a prospective cross-sectional observational study conducted among the patients attending Outpatient Department/Inpatient Department (OPD/IPD) at the School of Medical Sciences & Research, Sharda Hospital, Greater Noida, Uttar Pradesh, India, in known cases of CKD, irrespective of the treatment/stage of CKD. All patients of >18 years of age with CKD were included in the study. RESULT A total of 200 patients who met the inclusion criteria were included after obtaining detailed informed consent, of which 100 were cases and 100 were controls. The mean age of patients in the study was 47.74 years, with the mean age in patients with CKD 52 years, and the control was 43 years. The mean level of triglycerides (TGs) was significantly higher among the cases, and the high-density lipoprotein (HDL) was significantly lower among cases compared to controls (p < 0.05). Pearson's correlation between thyroid-stimulating hormone (TSH) with creatinine showed a weak albeit significant positive association (r = 0.200; p < 0.05). CONCLUSION Our study shows a higher incidence of alteration in thyroid profile and dyslipidemia among the patients with CKD compared to controls. There is a necessary need to screen routinely for hypothyroidism and dyslipidemia among patients with CKD. Importantly, thyroid hormone levels and their effects on the progression of CKD have not been studied exhaustively.
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Affiliation(s)
| | | | | | | | - Ashok K Agarwal
- Professor Emeritus, School of Medical Sciences and Research (SMSR), Sharda University, Greater Noida, Uttar Pradesh, India
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Kumar K, Gupta N, Malhotra S, Sibal A. Functional constipation: A common and often overlooked cause for abdominal pain in children. Indian J Gastroenterol 2023; 42:274-278. [PMID: 37060389 DOI: 10.1007/s12664-022-01329-1] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Accepted: 12/18/2022] [Indexed: 04/16/2023]
Abstract
The most common causes for chronic pain abdomen in pediatric practice are functional abdominal pain disorders, a subgroup of functional gastrointestinal disorders under the Rome IV classification. Constipation is usually associated with painful defecation, but abdominal pain as a predominant or presenting symptom of functional constipation (FC) is not very well recognized. We conducted this study to ascertain the prevalence of FC in chronic pain abdomen and proportion of FC children presenting with predominant complaints of pain abdomen. Prevalence of FC and functional abdominal pain was ascertained separately over a 1-year in children > 4 years of age in our hospital. The number of children with FC presenting with abdominal pain was noted. Abdominal pain site and duration were noted in the FC group and were compared with those in the functional abdominal pain group to find out any significance. Diagnosis was based on Rome IV criteria, but relevant investigations to rule out organic pathology were done whenever clinically indicated. The prevalence of abdominal pain was 22% in our gastroenterology service and that of FC was 27%. Among the children presenting with chronic abdominal pain, FC was seen in 10% of the patients and functional abdominal pain disorders in 34%. Among children presenting with constipation, 12% had pain as the sole complaint. However, some form of pain or pain as one of the symptoms was seen in 47.5%. FC is a major cause for abdomen pain in children and is often overlooked. Not attributing pain to constipation may delay the diagnosis, which may have poor prognosis.
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Affiliation(s)
- Karunesh Kumar
- Pediatric Gastroenterology, Indraprastha Apollo Hospitals, Sarita Vihar, New Delhi 110 076, India.
| | - Nikhil Gupta
- Indraprastha Apollo Hospitals, Sarita Vihar, New Delhi 110 076, India
- Safdarjung Hospital, New Delhi 110 029, India
| | - Smita Malhotra
- Pediatric Gastroenterology, Indraprastha Apollo Hospitals, Sarita Vihar, New Delhi 110 076, India
| | - Anupam Sibal
- Pediatric Gastroenterology, Indraprastha Apollo Hospitals, Sarita Vihar, New Delhi 110 076, India
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Gupta S, Dhillon HS, Gupta N. The Comparative Accuracy of BISAP and PANC3 Scoring System for the Disease Severity and Outcome in Acute Pancreatitis in Tertiary Care Hospital from North India. Kathmandu Univ Med J (KUMJ) 2023; 21:138-143. [PMID: 38628005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/19/2024]
Abstract
Background Acute pancreatitis has local and systemic manifestations, so it's important to assess the severity by various scoring system. Among them bed side index for severity of acute pancreatitis and pancreatitis three score have been considered to be more predictive and easier. Objective To determine the comparative prognostic value of bed side index for severity of acute pancreatitis and pancreatitis 3 score and its correlation with the outcome. Method A prospective observational study was conducted on 50 cases of acute pancreatitis. The patients were assessed clinically, radiologically and biochemically and were categorised into mild, moderate and severe category as per Atlanta Classification. Bed side index for severity of acute pancreatitis and pancreatitis 3 score was calculated at the time of admission and followed till the time of discharge or they had mortality. Result Receiver operating characteristic curve, showed bed side Index for severity of acute pancreatitis score had sensitivity (66.67%), specificity (84.09%), diagnostic accuracy (84%) while pancreatitis 3 score had sensitivity (50%), specificity (81.82%), diagnostic accuracy (80%) for the severity of acute pancreatitis. Bed side index for severity of acute pancreatitis had sensitivity (100%), specificity (66.67%) and Pancreatitis 3 score had sensitivity (66.67%), specificity (80.85%) for predicting the mortality in acute pancreatitis. Conclusion Bed side index for severity of acute pancreatitis and pancreatitis 3 score are both simple, bedside tool for assessing the severity and mortality but bed side index for severity of acute pancreatitis score had better sensitivity, specificity for assessing the severity and mortality as compared to pancreatitis three score.
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Affiliation(s)
- S Gupta
- Department of General Medicine, Maharishi Markandeshwar Institute of medical sciences and research, Maharishi Markandeshwar Deemed to be University, Mullana, Ambala (Haryana), India
| | - H S Dhillon
- Department of General Medicine, Maharishi Markandeshwar Institute of medical sciences and research, Maharishi Markandeshwar Deemed to be University, Mullana, Ambala (Haryana), India
| | - N Gupta
- Department of General Medicine, Maharishi Markandeshwar Institute of medical sciences and research, Maharishi Markandeshwar Deemed to be University, Mullana, Ambala (Haryana), India
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Siddiki M, Han J, Belkin M, Plana A, Gupta N, Pinney S, Kalantari S, Grinstein J. Response in Kidney Function in Heart Failure after Milrinone Loading. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.441] [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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Agrawal H, Gupta N. Dr. Leslie H. Blumgart – A ‘Living Legend’ and ‘The Professor’. Int J Surg 2023; 109:502-503. [PMID: 37093078 PMCID: PMC10389176 DOI: 10.1097/js9.0000000000000105] [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] [Received: 10/27/2022] [Accepted: 11/16/2022] [Indexed: 04/08/2023]
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Gupta N, Yadav DK, Gautam S, Kumar A, Kumar D, Prasad N. Nuclear Magnetic Resonance-Based Metabolomics Approach Revealed the Intervention Effect of Using Complementary and Alternative Medicine (CAM) by CKD Patients. ACS Omega 2023; 8:7722-7737. [PMID: 36872986 PMCID: PMC9979328 DOI: 10.1021/acsomega.2c06469] [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: 11/17/2022] [Accepted: 01/26/2023] [Indexed: 06/18/2023]
Abstract
Chronic kidney disease (CKD) is the end point of a number of systemic chronic diseases. The prevalence of CKD is increasing worldwide and recent epidemiological studies are showing the high prevalence of renal failure in CKD patients using complementary and alternative medicines (CAMs). Clinicians believe that biochemical profiles of CKD patients using CAM (referred here to as CAM-CKD) may be different compared to those on standard clinical treatment and should be managed differently. The present study aims to explore the potential of the NMR-based metabolomics approach to reveal the serum metabolic disparity between CKD and CAM-CKD patients with respect to normal control (NC) subjects and if the differential metabolic patterns can provide rationale for the efficacy and safety of standard and/or alternative therapies. Serum samples were obtained from 30 CKD patients, 43 CAM-CKD patients, and 47 NC subjects. The quantitative serum metabolic profiles were measured using 1D 1H CPMG NMR experiments performed at 800 MHz NMR spectrometer. The serum metabolic profiles were compared using various multivariate statistical analysis tools available on MetaboAnalyst (freely available web-based software) such as partial least-squares discriminant analysis (PLS-DA) and random forest (a machine learning) classification method. The discriminatory metabolites were identified based on variable importance in projection (VIP) statistics and further evaluated for statistical significance (i.e., p < 0.05) using either Student t-test or ANOVA statistics. PLS-DA models were capable of clustering CKD and CAM-CKD with considerably high values of Q 2 and R 2. Compared to CAM-CKD patients, the sera of CKD patients were characterized by (a) elevated levels of urea, creatinine, citrate, glucose, glycerol, and phenylalanine and phenylalanine-to-tyrosine ratio (PTR) and (b) decreased levels of various amino acids (such leucine, isoleucine, valine, and alanine), high-density lipoproteins, lactate, and acetate. These changes suggested that CKD patients manifest severe oxidative stress, hyperglycemia (with dampened glycolysis), increased protein energy wasting, and reduced lipid/membrane metabolism. Statistically significant and strong positive correlation of PTR with serum creatinine levels suggested the role of oxidative stress in the progression of kidney disease. Significant differences in metabolic patterns between CKD and CAM-CKD patients were observed. With respect to NC subjects, the serum metabolic changes were more aberrant in CKD patients compared to CAM-CKD patients. The aberrant metabolic changes in CKD patients with manifestations of higher oxidative stress compared to CAM-CKD patients could explain clinical discrepancies between CKD and CAM-CKD patients and further advocate the use of different treatment strategies for CKD and CAM-CKD patients.
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Affiliation(s)
- Nikhil Gupta
- Centre
of Biomedical Research (CBMR), Lucknow, Uttar Pradesh 226014, India
- Department
of Chemistry, Banaras Hindu University, Varanasi, Uttar Pradesh 221005, India
| | | | - Sonam Gautam
- Department
of Nephrology, SGPGIMS, Lucknow, Uttar Pradesh 226014, India
| | - Ashish Kumar
- Department
of Chemistry, Banaras Hindu University, Varanasi, Uttar Pradesh 221005, India
| | - Dinesh Kumar
- Centre
of Biomedical Research (CBMR), Lucknow, Uttar Pradesh 226014, India
| | - Narayan Prasad
- Department
of Nephrology, SGPGIMS, Lucknow, Uttar Pradesh 226014, India
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Pavic K, Gupta N, Omella JD, Derua R, Aakula A, Huhtaniemi R, Määttä JA, Höfflin N, Okkeri J, Wang Z, Kauko O, Varjus R, Honkanen H, Abankwa D, Köhn M, Hytönen VP, Xu W, Nilsson J, Page R, Janssens V, Leitner A, Westermarck J. Structural mechanism for inhibition of PP2A-B56α and oncogenicity by CIP2A. Nat Commun 2023; 14:1143. [PMID: 36854761 PMCID: PMC9974998 DOI: 10.1038/s41467-023-36693-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Accepted: 02/09/2023] [Indexed: 03/02/2023] Open
Abstract
The protein phosphatase 2A (PP2A) heterotrimer PP2A-B56α is a human tumour suppressor. However, the molecular mechanisms inhibiting PP2A-B56α in cancer are poorly understood. Here, we report molecular level details and structural mechanisms of PP2A-B56α inhibition by an oncoprotein CIP2A. Upon direct binding to PP2A-B56α trimer, CIP2A displaces the PP2A-A subunit and thereby hijacks both the B56α, and the catalytic PP2Ac subunit to form a CIP2A-B56α-PP2Ac pseudotrimer. Further, CIP2A competes with B56α substrate binding by blocking the LxxIxE-motif substrate binding pocket on B56α. Relevant to oncogenic activity of CIP2A across human cancers, the N-terminal head domain-mediated interaction with B56α stabilizes CIP2A protein. Functionally, CRISPR/Cas9-mediated single amino acid mutagenesis of the head domain blunted MYC expression and MEK phosphorylation, and abrogated triple-negative breast cancer in vivo tumour growth. Collectively, we discover a unique multi-step hijack and mute protein complex regulation mechanism resulting in tumour suppressor PP2A-B56α inhibition. Further, the results unfold a structural determinant for the oncogenic activity of CIP2A, potentially facilitating therapeutic modulation of CIP2A in cancer and other diseases.
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Affiliation(s)
- Karolina Pavic
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, 20520, Turku, Finland
- Cancer Cell Biology and Drug Discovery Group, Department of Life Sciences and Medicine, University of Luxembourg, Luxembourg, Esch-sur-Alzette, Luxembourg
| | - Nikhil Gupta
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, 20520, Turku, Finland
| | - Judit Domènech Omella
- Laboratory of Protein Phosphorylation & Proteomics, Department of Cellular & Molecular Medicine, University of Leuven (KU Leuven), B-3000, Leuven, Belgium
| | - Rita Derua
- Laboratory of Protein Phosphorylation & Proteomics, Department of Cellular & Molecular Medicine, University of Leuven (KU Leuven), B-3000, Leuven, Belgium
- SyBioMa, University of Leuven (KU Leuven), B-3000, Leuven, Belgium
| | - Anna Aakula
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, 20520, Turku, Finland
| | - Riikka Huhtaniemi
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, 20520, Turku, Finland
| | - Juha A Määttä
- Faculty of Medicine and Health Technology, Tampere University, 33520 Tampere, Finland and Fimlab Laboratories, 33520, Tampere, Finland
| | - Nico Höfflin
- Faculty of Biology, Institute of Biology III, University of Freiburg, 79104, Freiburg, Germany
| | - Juha Okkeri
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, 20520, Turku, Finland
| | - Zhizhi Wang
- School of Life Science and Technology, ShanghaiTech University, Shanghai, China
| | - Otto Kauko
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, 20520, Turku, Finland
| | - Roosa Varjus
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, 20520, Turku, Finland
| | - Henrik Honkanen
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, 20520, Turku, Finland
| | - Daniel Abankwa
- Cancer Cell Biology and Drug Discovery Group, Department of Life Sciences and Medicine, University of Luxembourg, Luxembourg, Esch-sur-Alzette, Luxembourg
| | - Maja Köhn
- Faculty of Biology, Institute of Biology III, University of Freiburg, 79104, Freiburg, Germany
- Signalling Research Centres BIOSS and CIBSS, University of Freiburg, Freiburg, Germany
| | - Vesa P Hytönen
- Faculty of Medicine and Health Technology, Tampere University, 33520 Tampere, Finland and Fimlab Laboratories, 33520, Tampere, Finland
| | - Wenqing Xu
- School of Life Science and Technology, ShanghaiTech University, Shanghai, China
| | - Jakob Nilsson
- The Novo Nordisk Foundation Center for Protein Research, University of Copenhagen, Blegdamsvej 3B, 2200, Copenhagen, Denmark
| | - Rebecca Page
- Department of Chemistry and Biochemistry University of Arizona, Tucson, AZ, USA
| | - Veerle Janssens
- Laboratory of Protein Phosphorylation & Proteomics, Department of Cellular & Molecular Medicine, University of Leuven (KU Leuven), B-3000, Leuven, Belgium
| | - Alexander Leitner
- Department of Biology, Institute of Molecular Systems Biology, ETH Zurich, 8093, Zurich, Switzerland
| | - Jukka Westermarck
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, 20520, Turku, Finland.
- Institute of Biomedicine, University of Turku, 20520, Turku, Finland.
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Gupta N, Max O, Hoefert JA. A dental abscess leading to maxillary osteomyelitis. Am J Med Sci 2023. [DOI: 10.1016/s0002-9629(23)00401-9] [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: 01/28/2023]
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Prosperi C, Thangaraj J, Hasan A, Kumar M, Truelove S, Kumar V, Winter A, Bansal A, Chauhan S, Grover G, Jain A, Kulkarni R, Sharma S, Soman B, Chaaithanya I, Kharwal S, Mishra S, Salvi N, Sharma N, Sharma S, Varghese A, Sabarinathan R, Duraiswamy A, Rani D, Kanagasabai K, Lachyan A, Gawali P, Kapoor M, Chonker S, Cutts F, Sangal L, Mehendale S, Sapkal G, Gupta N, Hayford K, Moss W, Murhekar M. Added value of the measles-rubella supplementary immunization activity in reaching unvaccinated and under-vaccinated children, a cross-sectional study in five Indian districts, 2018-20. Vaccine 2023; 41:486-495. [PMID: 36481106 PMCID: PMC9831119 DOI: 10.1016/j.vaccine.2022.11.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 10/29/2022] [Accepted: 11/04/2022] [Indexed: 12/12/2022]
Abstract
INTRODUCTION Supplementary immunization activities (SIAs) aim to interrupt measles transmission by reaching susceptible children, including children who have not received the recommended two routine doses of MCV before the SIA. However, both strategies may miss the same children if vaccine doses are highly correlated. How well SIAs reach children missed by routine immunization is a key metric in assessing the added value of SIAs. METHODS Children aged 9 months to younger than 5 years were enrolled in cross-sectional household serosurveys conducted in five districts in India following the 2017-2019 measles-rubella (MR) SIA. History of measles containing vaccine (MCV) through routine services or SIA was obtained from documents and verbal recall. Receipt of a first or second MCV dose during the SIA was categorized as "added value" of the SIA in reaching un- and under-vaccinated children. RESULTS A total of 1,675 children were enrolled in these post-SIA surveys. The percentage of children receiving a 1st or 2nd dose through the SIA ranged from 12.8% in Thiruvananthapuram District to 48.6% in Dibrugarh District. Although the number of zero-dose children prior to the SIA was small in most sites, the proportion reached by the SIA ranged from 45.8% in Thiruvananthapuram District to 94.9% in Dibrugarh District. Fewer than 7% of children remained measles zero-dose after the MR SIA (range: 1.1-6.4%) compared to up to 28% before the SIA (range: 7.3-28.1%). DISCUSSION We demonstrated the MR SIA provided considerable added value in terms of measles vaccination coverage, although there was variability across districts due to differences in routine and SIA coverage, and which children were reached by the SIA. Metrics evaluating the added value of an SIA can help to inform the design of vaccination strategies to better reach zero-dose or undervaccinated children.
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Affiliation(s)
- C. Prosperi
- International Vaccine Access Center, Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - J.W.V. Thangaraj
- Indian Council of Medical Research (ICMR)-National Institute of Epidemiology, Chennai, India
| | - A.Z. Hasan
- International Vaccine Access Center, Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - M.S. Kumar
- Indian Council of Medical Research (ICMR)-National Institute of Epidemiology, Chennai, India
| | - S. Truelove
- International Vaccine Access Center, Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA,Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - V.S. Kumar
- Indian Council of Medical Research (ICMR)-National Institute of Epidemiology, Chennai, India
| | - A.K. Winter
- International Vaccine Access Center, Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA,Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - A.K. Bansal
- ICMR-National JALMA Institute for Leprosy & Other Mycobacterial Diseases, Agra, India
| | - S.L. Chauhan
- ICMR- National Institute for Research in Reproductive and Child Health (NIRRCH), Mumbai, India
| | - G.S. Grover
- Directorate of Health Services, Government of Punjab, Chandigarh, India
| | - A.K. Jain
- ICMR-National Institute of Pathology, New Delhi, India
| | - R.N. Kulkarni
- ICMR- National Institute for Research in Reproductive and Child Health (NIRRCH), Mumbai, India
| | - S.K. Sharma
- ICMR-Regional Medical Research Centre, NE Region, Dibrugarh, India
| | - B. Soman
- Achutha Menon Centre for Health Science Studies, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum, Kerala, India
| | - I.K. Chaaithanya
- Department of Health Research, Model Rural Health Research Unit-Dahanu, Maharashtra, India
| | - S. Kharwal
- Department of Health Research, Model Rural Health Research Unit-Hoshiarpur, Punjab, India
| | - S.K. Mishra
- Department of Health Research, Model Rural Health Research Unit-Hoshiarpur, Punjab, India
| | - N.R. Salvi
- Department of Health Research, Model Rural Health Research Unit-Dahanu, Maharashtra, India
| | - N.P. Sharma
- Department of Health Research, Model Rural Health Research Unit-Chabua, Assam, India
| | - S. Sharma
- Department of Health Research, Model Rural Health Research Unit-Kanpur, Uttar Pradesh, India
| | - A. Varghese
- Achutha Menon Centre for Health Science Studies, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum, Kerala, India
| | - R. Sabarinathan
- Indian Council of Medical Research (ICMR)-National Institute of Epidemiology, Chennai, India
| | - A. Duraiswamy
- Indian Council of Medical Research (ICMR)-National Institute of Epidemiology, Chennai, India
| | - D.S. Rani
- Indian Council of Medical Research (ICMR)-National Institute of Epidemiology, Chennai, India
| | - K. Kanagasabai
- Indian Council of Medical Research (ICMR)-National Institute of Epidemiology, Chennai, India
| | - A. Lachyan
- Department of Health Research, Model Rural Health Research Unit-Dahanu, Maharashtra, India
| | - P. Gawali
- Department of Health Research, Model Rural Health Research Unit-Dahanu, Maharashtra, India
| | - M. Kapoor
- Department of Health Research, Model Rural Health Research Unit-Dahanu, Maharashtra, India
| | - S.K. Chonker
- Department of Health Research, Model Rural Health Research Unit-Kanpur, Uttar Pradesh, India
| | - F.T. Cutts
- Department of Infectious Disease Epidemiology, London School of Hygiene and Tropical Medicine, London, UK
| | - L. Sangal
- World Health Organization, Southeast Asia Region Office, New Delhi, India
| | - S.M. Mehendale
- PD Hinduja Hospital and Medical Research Centre, Mumbai, India
| | - G.N. Sapkal
- ICMR-National Institute of Virology, Pune, India
| | - N. Gupta
- Division of Epidemiology and Communicable Diseases, Indian Council of Medical Research, New Delhi, India
| | - K. Hayford
- International Vaccine Access Center, Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - W.J. Moss
- International Vaccine Access Center, Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA,Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA,Corresponding author at: International Vaccine Access Center, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA.
| | - M.V. Murhekar
- Indian Council of Medical Research (ICMR)-National Institute of Epidemiology, Chennai, India
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Theja RS, Gupta N, Panwar V, Kumar N. Erector spinae plane block for peri-operative analgesia in a patient undergoing surgery for Ewing's sarcoma of the clavicle. Anaesth Rep 2023; 11:e12228. [PMID: 37124664 PMCID: PMC10143598 DOI: 10.1002/anr3.12228] [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: 04/07/2023] [Indexed: 05/02/2023] Open
Abstract
The erector spinae plane block is a regional anaesthetic technique originally developed to manage thoracic neuropathic pain. It is popular because of its ease of learning and its applicability in various types of surgeries, providing both cutaneous and visceral analgesia. We report a case of a 30-year-old man who underwent excision of Ewing's sarcoma of the clavicle with brachiocephalic vein repair and pectoralis major myocutaneous flap reconstruction under general anaesthesia, with bilateral erector spinae plane block, with catheter insertion on the side of the lesion. The operation necessitated peri-operative anticoagulation, and so erector spinae blocks were performed to provide analgesia where epidural insertion was contraindicated. Adequate pain relief was achieved during the entire postoperative stay. The erector spinae plane block is thought to work due to the direct spread and diffusion of local anaesthetic into the posterior rami of spinal nerves located deep to the erector spinae muscles, and anterior spread into paravertebral space with additional effect potentially due to systemic absorption This case highlights the role of the erector spinae plane block in complex clavicular surgery requiring peri-operative anticoagulation, and potentially obviates the need for neuraxial analgesia.
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Affiliation(s)
- R. S. Theja
- Department of Surgical Oncology, Rotary Cancer HospitalAll India Institute of Medical SciencesDelhiIndia
| | - N. Gupta
- Department of Surgical Oncology, Rotary Cancer HospitalAll India Institute of Medical SciencesDelhiIndia
| | - V. Panwar
- Department of Surgical Oncology, Rotary Cancer HospitalAll India Institute of Medical SciencesDelhiIndia
| | - N. Kumar
- Department of Surgical Oncology, Rotary Cancer HospitalAll India Institute of Medical SciencesDelhiIndia
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Gupta N, Ramzaan Dar W, Wani A, Raj Saxena R, Khatri S, Tyagi B, Bansal P, Ahmad Mir I. Comparison of aspartate aminotransferase platelet ratio index score and insulin resistance in type 2 diabetes mellitus with non-alcoholic fatty liver disease. Endocr Regul 2023; 57:106-113. [PMID: 37285459 DOI: 10.2478/enr-2023-0013] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/09/2023] Open
Abstract
Objective. Nonalcoholic fatty liver disease (NAFLD) is a spectrum of liver diseases characterized by the presence of ectopic fat in the liver and steatosis, which cannot be explained by alcohol consumption. The association between NAFLD and type 2 diabetes mellitus (T2DM) is well established. As liver fibrosis progresses in a patient with NAFLD, insulin resistance (IR) increases and may worsen diabetes control. The aspartate aminotransferase platelet ratio index (APRI) score is a simple and inexpensive bedside marker that can detect liver fibrosis and cirrhosis. Several studies have shown an association between APRI and NAFLD. However, there is a gap in correlation with IR in patients with diabetes. In this study, we sought to correlate IR and NAFLD in diabetes using the APRI score. Methods. This observational hospital-based cross-sectional study was conducted in the Department of General Medicine, one of the tertiary care hospitals in North India, from February 2019 to July 2020. A total of 70 patients were taken for the study. Patients with T2DM, aged >30 years, who had no history of alcohol use and who had or were newly diagnosed with NAFLD were enrolled in the study. Results. Significant differences in mean HbAc1, AST, serum insulin, APRI score and homeo-static model assessment-2 (HOMA2) IR between NAFLD grade 1, grade 2, and grade 3 groups were found. Pearson correlation between APRI score and HOMA2 IR total values revealed a significant positive correlation between them. Conclusions. The data of the present study indicate that the APRI score can be used to assess the IR degree and provide important information for improving glycemic control in T2DM patients with NAFLD.
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Affiliation(s)
- Nikhil Gupta
- 1Department of Medicine, School of Medical Science & Research, Sharda University, UP, India
| | - Waseem Ramzaan Dar
- 1Department of Medicine, School of Medical Science & Research, Sharda University, UP, India
| | - Asma Wani
- 1Department of Medicine, School of Medical Science & Research, Sharda University, UP, India
| | - Rachit Raj Saxena
- 1Department of Medicine, School of Medical Science & Research, Sharda University, UP, India
| | - Sahil Khatri
- 1Department of Medicine, School of Medical Science & Research, Sharda University, UP, India
| | - Bhumesh Tyagi
- 1Department of Medicine, School of Medical Science & Research, Sharda University, UP, India
| | - Pankaj Bansal
- 1Department of Medicine, School of Medical Science & Research, Sharda University, UP, India
| | - Irfan Ahmad Mir
- 1Department of Medicine, School of Medical Science & Research, Sharda University, UP, India
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Lokwani P, Gupta N, Choudhary SK, Singh AK. Noise survey of neonatal intensive care unit at a government tertiary-care centre. J Neonatal Perinatal Med 2023; 16:619-625. [PMID: 38043020 DOI: 10.3233/npm-230031] [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: 12/04/2023]
Abstract
BACKGROUND With technological advancement, Neonatal Intensive Care Units (NICU) have become noisier than ever. Studies have shown the detrimental effects of increasing noise in NICU on growing pre-term and sick neonates. The present study aimed to survey the amount of noise in one of the NICU blocks of a government tertiary care centre and explore ways to control it when dealing with these sick babies. METHODS A detailed noise survey was carried out, for February 2023, in one of the two blocks of NICU in a government tertiary-care centre. The noise measurements were performed using two "Sound Ear 3" noise meters. The analyses were done in Leq (equivalent continuous sound levels) A-weighted decibels (dBA). RESULTS The extracted data analysis revealed that the NICU block was exposed to a mean Leq of 67.78 dBA noise with a maximum of 89.0 dBA. There was a significant difference between the values noted in devices at different locations and across different periods. There were certain instances (57 and 42 for two devices) when there were sudden spikes in the noise levels beyond 80 dBA. It was also seen that noise was more than 65 dBA most of the time (72% and 66% for the two devices). CONCLUSION The noise survey carried out over one month revealed a considerable amount of noise in the NICU of a government tertiary-care centre. The study also explored ways such as environmental modification, human behavior modification, awareness programs, and neonatal-centered modifications to reduce the noise and lower its detrimental effects on the growth of neonates.
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Affiliation(s)
- P Lokwani
- Audiologist, Model Early Intervention Centre, Department of Neonatology, All India Institute of Medical Sciences, Jodhpur, India
| | - N Gupta
- Department of Neonatology, All India Institute of Medical Sciences, Jodhpur, India
| | - S K Choudhary
- Department of Neonatology, All India Institute of Medical Sciences, Jodhpur, India
| | - A K Singh
- Department of Neonatology, All India Institute of Medical Sciences, Jodhpur, India
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Abstract
BK polyomavirus has been well-studied as an opportunistic infection in immunocompromised kidney transplant patients. In the majority of the population, BK polyomavirus establishes a lifelong infection in renal tubular and uroepithelial cells; however, in an immunocompromised state, the virus can reactivate and can lead to BK polyomavirus-associated nephropathy (BKN). In this case, the patient was a 46-year-old male with a past medical history of HIV, compliant with antiretroviral therapy (ART), and B-cell lymphoma treated with chemotherapy. The patient presented with worsening kidney function of unknown etiology. This prompted further assessment with a kidney biopsy. Kidney biopsy findings were consistent with BKN. In the literature, BKN has been studied in renal transplant patients; however, it rarely involves native kidneys.
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Affiliation(s)
| | - Jaskaran Munjal
- Internal Medicine, Shri Ram Murti Smarak Institute of Medical Sciences, Bareilly, IND
| | - Pulkit Gandhi
- Nephrology, Lake Erie College of Osteopathic Medicine, Erie, USA.,Nephrology, Rochester Regional Health, Rochester, USA
| | - Nikhil Gupta
- Internal Medicine, San Joaquin General Hospital, Stockton, USA
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Yadav KK, Chouhan N, Thubstan R, Norlha S, Hariharan J, Borwankar C, Chandra P, Dhar VK, Mankuzhyil N, Godambe S, Sharma M, Venugopal K, Singh KK, Bhatt N, Bhattacharyya S, Chanchalani K, Das MP, Ghosal B, Godiyal S, Khurana M, Kotwal SV, Koul MK, Kumar N, Kushwaha CP, Nand K, Pathania A, Sahayanathan S, Sarkar D, Tolamati A, Koul R, Rannot RC, Tickoo AK, Chitnis VR, Behere A, Padmini S, Manna A, Joy S, Nair PM, Jha KP, Moitra S, Neema S, Srivastava S, Punna M, Mohanan S, Sikder SS, Jain A, Banerjee S, . K, Deshpande J, Sanadhya V, Andrew G, Patil MB, Goyal VK, Gupta N, Balakrishna H, Agrawal A, Srivastava SP, Karn KN, Hadgali PI, Bhatt S, Mishra VK, Biswas PK, Gupta RK, Kumar A, Thul SG, Kalmady R, Sonvane DD, Kumar V, Gaur UK, Chattopadhyay J, Gupta SK, Kiran AR, Parulekar Y, Agrawal MK, Parmar RM, Reddy GR, Mayya YS, Pithawa CK. Commissioning of the MACE gamma-ray telescope at Hanle, Ladakh, India. CURR SCI INDIA 2022. [DOI: 10.18520/cs/v123/i12/1428-1435] [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: 01/25/2023]
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Aakula A, Isomursu A, Rupp C, Erickson A, Gupta N, Kauko O, Shah P, Padzik A, Pokharel YR, Kaur A, Li SP, Trotman L, Taimen P, Rannikko A, Lammerding J, Paatero I, Mirtti T, Ivaska J, Westermarck J. PP2A methylesterase PME-1 suppresses anoikis and is associated with therapy relapse of PTEN-deficient prostate cancers. Mol Oncol 2022. [PMID: 36461911 DOI: 10.1002/1878-0261.13353] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 09/21/2022] [Accepted: 12/02/2022] [Indexed: 12/05/2022] Open
Abstract
While organ-confined prostate cancer (PCa) is mostly therapeutically manageable, metastatic progression of PCa remains an unmet clinical challenge. Resistance to anoikis, a form of cell death initiated by cell detachment from the surrounding extracellular matrix, is one of the cellular processes critical for PCa progression towards aggressive disease. Therefore, further understanding of anoikis regulation in PCa might provide therapeutic opportunities. Here, we discover that PCa tumors with concomitant inhibition of two tumor suppressor phosphatases, PP2A and PTEN, are particularly aggressive, having less than 50% 5-year secondary-therapy-free patient survival. Functionally, overexpression of PME-1, a methylesterase for the catalytic PP2A-C subunit, inhibits anoikis in PTEN-deficient PCa cells. In vivo, PME-1 inhibition increased apoptosis in in ovo PCa tumor xenografts, and attenuated PCa cell survival in zebrafish circulation. Molecularly, PME-1-deficient PC3 cells display increased trimethylation at lysines 9 and 27 of histone H3 (H3K9me3 and H3K27me3), a phenotype known to correlate with increased apoptosis sensitivity. In summary, our results demonstrate that PME-1 supports anoikis resistance in PTEN-deficient PCa cells. Clinically, these results identify PME-1 as a candidate biomarker for a subset of particularly aggressive PTEN-deficient PCa.
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Affiliation(s)
- Anna Aakula
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku, Finland
| | - Aleksi Isomursu
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku, Finland
| | - Christian Rupp
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku, Finland
| | - Andrew Erickson
- HUSLAB Laboratory Services, Helsinki University Hospital Medicum and Institute for Molecular Medicine Finland FIMM, University of Helsinki, Helsinki, Finland
| | - Nikhil Gupta
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku, Finland
| | - Otto Kauko
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku, Finland
| | - Pragya Shah
- Weill Institute for Cell and Molecular Biology & Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY, USA
| | - Artur Padzik
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku, Finland
| | - Yuba Raj Pokharel
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku, Finland.,Current addresses: Faculty of Life Science and Biotechnology, South Asian University, New Delhi, India
| | - Amanpreet Kaur
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku, Finland
| | - Song-Ping Li
- Institute of Biomedicine, University of Turku, Turku, Finland.,Current addresses: The school of life science and biopharmaceutics, Shenyang Pharmaceutical University, China
| | - Lloyd Trotman
- Cold Spring Harbor Laboratory, Harbor, Cold Spring, NY, USA
| | - Pekka Taimen
- Institute of Biomedicine, University of Turku, Turku, Finland.,Department of Pathology, Turku University Hospital, Turku, Finland
| | - Antti Rannikko
- Department of Urology, Helsinki University Central Hospital, Helsinki, Finland
| | - Jan Lammerding
- Weill Institute for Cell and Molecular Biology & Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY, USA
| | - Ilkka Paatero
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku, Finland
| | - Tuomas Mirtti
- HUSLAB Laboratory Services, Helsinki University Hospital Medicum and Institute for Molecular Medicine Finland FIMM, University of Helsinki, Helsinki, Finland
| | - Johanna Ivaska
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku, Finland.,Department of Life Technology, University of Turku, Turku, Finland.,InFLAMES Research Flagship Center, University of Turku, Turku, Finland.,Foundation for the Finnish Cancer Institute, Tukholmankatu 8, FI-00014, Helsinki
| | - Jukka Westermarck
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku, Finland.,Institute of Biomedicine, University of Turku, Turku, Finland.,InFLAMES Research Flagship Center, University of Turku, Turku, Finland
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Karoli R, Gupta N, Karoli Y, Kulshreshtha MR, Tiwari V. Neutrophil Gelatinase-associated Lipocalin (NGAL) as a Marker of Renal Tubular Injury in Metabolic Syndrome Patients with Hyperuricemia. J Assoc Physicians India 2022; 69:11-12. [PMID: 35057593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
BACKGROUND Hyperuricemia has been associated with chronic kidney disease, evidence suggests that hyperuricemiamight plays a role in progression of renal damage. Whether hyperuricemia can lead to renal tubular injury remains unclear. In this study we aimed to determine serum NGAL and urinary NGAL/creatinine ratio as markers of reanal tubular injury in metabolic syndrome patientshave hyper or normouricemia. MATERIAL AND METHODS In this hospital based cross- sectional study,180 par ticipants with metabolic syndrome were included,90 patients had hyperuricemia and 90 were with normouricemia. Clinical biochemical parameters of serum NGAL and urinary NGAL were measured using a commercially available enzyme-linked immunosorbent assay (ELISA) kit. Receiver operating characteristic(ROC) curve was analysis was employed to assess the sensitivity and specificity of serum NGAL and urine NGAL/creatinine ratio. RESULTS Out of all, 96 were males and 84 were females. The mean age of participants was 45 ± 7 years. Serum NGAL levels and Urinary NGAL/creatinine ratio were higher in metabolic syndrome patients with hyperuricemia. High Serum NGAL was positively correlated with presence of hypertension; HbA1c and waist-hip ratio and negatively correlated with HDL. CONCLUSION Serum NGAL levels and urinary NGAL/creatinine ratio were higher in metabolic syndrome patients with hyperuricemia that indicates presence of renal tubular injury in these patients. High Serum NGAL was positively correlated with presence of hypertension; HbA1c and waist-hip ratio.
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Affiliation(s)
- Ritu Karoli
- Professsor (Jr Gr), Dr. Ram Manohar Lohia Institute of Medical Sciences, Lucknow, Uttar Pradesh; Corresponding Author
| | - Nikhil Gupta
- Associate Professor, Department of Medicine, Dr. Ram Manohar Lohia Institute of Medical Sciences, Lucknow, Uttar Pradesh
| | - Yogesh Karoli
- Senior Consultant, Department of Orthopedics, Dr. Ram Manohar Lohia Institute of Medical Sciences, Lucknow, Uttar Pradesh
| | - Manish Raj Kulshreshtha
- Associate Professor, Dr. Ram Manohar Lohia Institute of Medical Sciences, Lucknow, Uttar Pradesh
| | - Vandana Tiwari
- Professor(Jr Gr), Department of Biochemistry, Dr. Ram Manohar Lohia Institute of Medical Sciences, Lucknow, Uttar Pradesh
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Karoli R, Gupta N, Shakya S. Follow-up Study of Pulmonary Function, Exercise Capacity and Radiological Changes after Recovery from Moderate to Severe COVID Pneumonia without Mechanical Ventilation. J Assoc Physicians India 2022; 69:11-12. [PMID: 35057587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
BACKGROUND The long-term effects of COVID on the lungs remain unclear, but, given the extent of the pandemic, it has the potential to become a significant chronic global health problem .Aim of our study was to ascertain the proportion of patients with moderate to severe pneumonia but without mechanical ventilation who have compromised exercise capacity, pulmonary function test and presence of radiological abnormalities and to study any correlation between clinical features with radiological abnormalities. METHODS In a hospital-based study, COVID-19 patients with moderate and severe pneumonia were followed 3 months after discharge and assessed with chest computed tomography (CT) imaging, 6 minute walk test and pulmonary function tests. RESULTS A total of 102 participants were enrolled, including64 patients who had recovered from moderate disease and 38 patients from severe COVID-19. The patients with critical disease and who required mechanical ventilation or who had previously known chronic lung disease were excluded. High proportion of patients of both groups showed radiological abnormalities and deranged pulmonary function tests 3 months after recovery from acute illness which had significant correlation with severity of disease. CONCLUSIONS Pulmonary function and radiological abnormalities remained in significant propotion of patients 3 months after recovery from COVID-19 that needs more attention on pulmonary rehabilitation and long term follow up of these patients.
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Affiliation(s)
- Ritu Karoli
- Additional Professor, Department of Medicine, Dr Ram Manohar Lohia Institute of Medical Sciences, Lucknow, Uttar Pradesh; Corresponding Author
| | - Nikhil Gupta
- Associate Professor, Department of Medicine, Dr Ram Manohar Lohia Institute of Medical Sciences, Lucknow, Uttar Pradesh
| | - Shobhit Shakya
- Associate Professor, Department of Medicine, Dr Ram Manohar Lohia Institute of Medical Sciences, Lucknow, Uttar Pradesh
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Gupta N, Kumar R, Sharma A. 214P Versican G3 domain promotes myeloma cell proliferation, migration and invasion via activation of FAK/STAT3 signaling. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.10.249] [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: 12/05/2022] Open
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Sarin A, Agarwal A, Dodagoudar C, Baghmar S, Qureshi S, Raj A, Kailey N, Hasthavaram N, Kumar R, Potsangbam L, Bansal R, Bhardwaj S, Rajpurohit S, Vaibhav V, Handoo A, Dadu T, Mittal A, Gupta N, Aggarwal S. 285P Reticulocyte hemoglobin equivalent as an early predictor of iron deficiency anemia in cancer patients. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.10.311] [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: 12/05/2022] Open
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Su W, Anstadt E, Gupta N, Forrester V, Krausz A, Schoenfeld J, Vidimos A, Heusinkveld L, Koyfman S, Margalit D, Murad F, Ruiz E, Lukens J. A Multi-Institutional Study of Definitive Radiotherapy for Locally Advanced Basal Cell Carcinoma. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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Ali AB, Majoros M, Zhang X, Collings E, Gupta N, Sumption M, Lu L. Study the Impact of Magnetic Field on Dosimetry of Proton Therapy Using Monte Carlo Simulation. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.2150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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Chen K, Raleigh D, Sneed P, Fogh S, Nakamura J, Boreta L, Reddy A, Banerjee A, Mueller S, Auguste K, Gupta N, Braunstein S. Radiosurgery for Primary and Metastatic CNS Malignancies in the Pediatric Population. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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48
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McCormick LF, Gupta N, Prakash O, Lian LY, Dart C, Helassa N. Long QT syndrome-associated calmodulin mutations and their interactions with the Kv7.1 voltage-gated potassium channel. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.2983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Introduction
Calmodulin (CaM) is a highly conserved mediator of calcium (Ca2+) dependent signalling. Its flexible structure allows CaM to bind and modulate many targets, including cardiac ion channels. Genotyping has revealed several CaM mutations associated with congenital disorders of heart rhythm, known as long QT-syndrome (LQTS). LQTS patients suffer from prolonged ventricular recovery times (QT-interval) which increases their risk of significant cardiac events. Loss of function KV7.1 mutations are the largest cause of LQTS, accounting for >50% of cases. CaM facilitates Ca2+-sensitivity to KV7.1 in producing IKs, Kv7.1 mutations which reduce CaM binding promote LQTS pathology. However, the effects of LQTS-associated CaM mutations on Kv7.1 function remain unknown.
Purpose
To determine the biophysical consequences of congenital LQTS-associated CaM mutations and how they alter modulation of Kv7.1 in producing the ventricular repolarising IKs current.
Methods
WT and mutant CaM proteins were recombinantly expressed and purified for biophysical characterisation. Using circular dichroism, secondary structures and thermostability of proteins were quantified. Isothermal titration calorimetry was used to quantitatively measure interactions between CaM proteins and binding sites of KV7.1 (Helix B). NMR was employed to study the conformations of target-bound WT and mutant proteins. Whole cell currents were determined using voltage clamp electrophysiology in HEK cells.
Results
Mutations significantly changed the thermostability and secondary structure distributions of CaM, and also caused site-dependent increases in susceptibility to protease digestion. CaM interacted with Helix B (KV7.1) via both Ca2+-dependent and independent mechanisms. Ca2+ dependent binding to Helix B was much higher affinity than Ca2+-independent binding, with >2000-fold reduction in dissociation constant measured. LQTS-CaM variants reduced Helix B affinity with the largest reductions found in EF-hand IV mutants. These mutants also adopted most distinct conformations when Helix B-bound. Calmodulation of the KV7.1 channel produced larger (IKs) currents without altering channel activation kinetics. IKs exhibited Ca2+-sensitivity, in response to increased cytosolic Ca2+, larger currents were generated. Modulation by CaM mutants reduced current density at systolic Ca2+-concentrations (1000 nM), within physiological time periods (0.35 s), revealing a direct QT-prolonging modulatory effect.
Conclusions
Provided here are mechanistic insights as to how LQTS-associated CaM variants contribute to electrical disease of the heart. Mutations in the highly conserved structure of CaM disrupt protein conformation and perturb complex formation with KV7.1. This results in aberrant Ca2+-sensitivity of Kv7.1, reducing IKs generation. This ultimately decreases the repolarisation capacity of cells and would extend the QT interval of myocytes.
Funding Acknowledgement
Type of funding sources: Foundation. Main funding source(s): British Heart Foundation Intermediate Basic Science Research Fellowship
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Affiliation(s)
- L F McCormick
- University of Liverpool, Department of Cardiovascular and Metabolic Medicine , Liverpool , United Kingdom
| | - N Gupta
- University of Liverpool, Department of Molecular Physiology and Cell Signalling , Liverpool , United Kingdom
| | - O Prakash
- University of Liverpool, Department of Cardiovascular and Metabolic Medicine , Liverpool , United Kingdom
| | - L Y Lian
- University of Liverpool, Department of Biochemistry and Systems Biology , Liverpool , United Kingdom
| | - C Dart
- University of Liverpool, Department of Molecular Physiology and Cell Signalling , Liverpool , United Kingdom
| | - N Helassa
- University of Liverpool, Department of Cardiovascular and Metabolic Medicine , Liverpool , United Kingdom
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Helassa N, Prakash O, Gupta N, McCormick LF, Antonyuk S, Dart C. Disease-associated calmodulin mutations disrupt L-type Ca2+ channel (Cav1.2) activity and CaMKIIdelta phosphorylation in long QT syndrome. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.2982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Introduction
Long QT Syndrome (LQTS) is a major inherited arrhythmia syndrome that can cause sudden cardiac death. Using genome sequencing in human patients, mutations in the ubiquitous calcium (Ca2+) sensor protein calmodulin (CaM) have been associated to LQTS. CaM is an ion channel regulator and can modulate the activity of the voltage-gated calcium channel (Cav1.2) and Ca2+/CaM-dependent protein kinase II (CaMKIIδ), involved in cardiac muscle contraction. However the molecular mechanism by which CaM mutations contribute to irregular heartbeats remains unclear.
Methods
Interaction of CaM proteins with Cav1.2 and CaMKIId synthetic peptides (Cav1.2-NSCaTE51–68, Cav1.2-IQ1665–1685, Cav1.2-C1627–1652, CaMKIIδ294–315,) was investigated using Isothermal Titration Calorimetry (ITC) and X-ray crystallography. Whole-cell patch clamp electrophysiology was used to determine the effect of CaM mutations on L-type Ca2+ currents and Ca2+-dependent inactivation (CDI). CaMKIIδ phosphorylation activity was determined by western blot and fluorescence kinase assay.
Results
Binding affinity of CaMKIId and Cav1.2 peptides to the LQTS-associated CaM variants was significantly reduced, up to 7-fold. Interestingly, the Cav1.2-IQ1665–1685 peptide showed a stronger binding, up to 2-fold, towards LQTS-CaM mutants. Crystal structures of Ca2+-CaM:CaMKIId294–315 showed structural alterations induced by LQTS associated mutations. In addition, we demonstrated that CaMKIIδ autophosphorylation and kinase activity can be significantly reduced by LQTS-associated CaM mutants. Electrophysiological examination of Cav1.2 function revealed that CaM mutations significantly impaired channel CDI, without affecting the voltage dependence of activation and inactivation.
Conclusions
These data demonstrate a strong correlation between LQTS-associated CaM mutations and Cav1.2 activity. We provide molecular insights into the diverse factors contributing to CaM-mediated arrhythmias.
Funding Acknowledgement
Type of funding sources: Foundation. Main funding source(s): British Heart Foundation Intermediate Basic Science Research Fellowship
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Affiliation(s)
- N Helassa
- University of Liverpool, Department of Cardiovascular and Metabolic Medicine , Liverpool , United Kingdom
| | - O Prakash
- University of Liverpool, Department of Cardiovascular and Metabolic Medicine , Liverpool , United Kingdom
| | - N Gupta
- University of Liverpool, Department of Molecular Physiology and Cell Signalling , Liverpool , United Kingdom
| | - L F McCormick
- University of Liverpool, Department of Cardiovascular and Metabolic Medicine , Liverpool , United Kingdom
| | - S Antonyuk
- University of Liverpool, Department of Biochemistry and Systems Biology , Liverpool , United Kingdom
| | - C Dart
- University of Liverpool, Department of Molecular Physiology and Cell Signalling , Liverpool , United Kingdom
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Kurri N, Tyagi B, Kaushik A, Gupta N, Agarwal AK, Singh BM. Role of Itolizumab in the Treatment of COVID-19 Patients, Admitted to ICU at a Tertiary Care Hospital. J Assoc Physicians India 2022; 70:11-12. [PMID: 37355865 DOI: 10.5005/japi-11001-0114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/26/2023]
Abstract
BACKGROUND Clinical studies have correlated severe deterioration of COVID-19 patients due to excessive and uncontrolled production of cytokines. There is a pressing need to explore therapies, which could prevent the cytokine storm rather than terminating it. AIMS AND OBJECTIVES The aim of the study is to evaluate the effect of itolizumab on clinical outcomes of patients with moderate-severe COVID-19 disease admitted to ICU. The primary aim of the current study is to find out any mortality benefit in 14 days. The secondary aim is to assess the morbidity outcomes in terms of reduction in inflammatory markers and also the duration of hospital stays to assess the prognostication. MATERIALS AND METHODS It is a retrospective case-control study in which laboratory-confirmed COVID-19 patients admitted to ICU were taken. A total of 62 patients were recruited, 31 patients received itolizumab (cases/treatment group) and 31 patients didn't receive itolizumab (designated as controls). RESULTS Among the total patients recruited, 68% of the study population was male and 32% were female. A total of 12 patients expired among cases and 13 expired among controls. Overall mortality in both groups was noted to be almost similar. The control group showed mortality at lower computed tomography (CT) scores compared to the cases. There is a significant reduction in inflammatory markers, like interleukins-6 (IL-6) and D-dimer in cases compared to the control group. CONCLUSION In conclusion, treating patients with cytokine storms before they require intubation/mechanical ventilation is crucial to preventing deaths. Itolizumab has shown no clinical benefit in critically ill COVID-19 patients, however, timely initiation of itolizumab therapy may serve as a key therapeutic option in preventing the mortality and morbidity outcomes in moderate-severe COVID-19 patients.
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Affiliation(s)
| | | | | | | | | | - B M Singh
- Professor, SMS & R Sharda Hospital, Greater Noida, Uttar Pradesh, India
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