1
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Xia J, Tan AJ, Gabel CK, Nguyen ED, Chand S, Rrapi R, Dobry AS, Garza-Mayers AC, Ko LN, Shah R, St John J, Nigwekar SU, Kroshinsky D. Prevalence and risk factors for development of recurrent calciphylaxis. J Am Acad Dermatol 2024:S0190-9622(24)00380-3. [PMID: 38382710 DOI: 10.1016/j.jaad.2024.02.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 02/06/2024] [Accepted: 02/09/2024] [Indexed: 02/23/2024]
Affiliation(s)
- Joyce Xia
- Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts
| | - Alice J Tan
- Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts
| | - Colleen K Gabel
- Department of Dermatology, UMass Memorial Medical Center, Worcester, Massachusetts
| | - Emily D Nguyen
- Department of Dermatology, University of Colorado School of Medicine, Aurora, Colorado
| | - Sidharth Chand
- Department of Dermatology, University of California Irvine Health, Irvine, California
| | - Renajd Rrapi
- Department of Dermatology, New York University Langone Health, New York, New York
| | - Allison S Dobry
- Department of Dermatology, University of California San Francisco Health, San Francisco, California
| | - Anna Cristina Garza-Mayers
- Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts; Harvard Medical School, Boston, Massachusetts
| | - Lauren N Ko
- Harvard Medical School, Boston, Massachusetts; Department of Dermatology, Brigham and Women's Hospital, Boston, Massachusetts
| | - Radhika Shah
- Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts
| | - Jessica St John
- Department of Dermatology, UMass Memorial Medical Center, Worcester, Massachusetts
| | - Sagar U Nigwekar
- Harvard Medical School, Boston, Massachusetts; Department of Nephrology, Massachusetts General Hospital, Boston, Massachusetts
| | - Daniela Kroshinsky
- Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts; Harvard Medical School, Boston, Massachusetts.
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2
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Cucka B, Biglione B, Xia J, Tan AJ, Chand S, Rrapi R, El Saleeby C, Kroshinsky D. Complicated Cellulitis is an Independent Predictor for Increased Length of Stay in the Neonatal Intensive Care Unit. J Pediatr 2023; 262:113581. [PMID: 37353147 DOI: 10.1016/j.jpeds.2023.113581] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 05/23/2023] [Accepted: 06/16/2023] [Indexed: 06/25/2023]
Abstract
OBJECTIVE To assess cellulitis in the neonatal intensive care unit (NICU) setting and identify risk factors for its disease severity and whether cellulitis influences length of stay (LOS). STUDY DESIGN In this retrospective study, patients with cellulitis were identified using the electronic health record while admitted to the NICU at Massachusetts General for Children from January 2007 to December 2020. Demographic and clinical data were extracted from patient records. Two multivariable logistic regression models were constructed to assess for independent predictors for increased LOS (≥30 days) and complicated cellulitis in the hospital. RESULTS Eighty-four patients met the study criteria; 46.4% were older than 14 days at the time of diagnosis of cellulitis, 61.9% were non-White, and 83.3% were born prematurely; 48.8% had complicated cellulitis as defined by overlying hardware (41.7%), sepsis (7.1%), requirement for broadened antibiotic coverage (7.1%), bacteremia (4.8%), and/or abscess (3.6%). The mean hospital LOS was 58.5 ± 36.1 days SD, with 72.6% having a LOS greater than 30 days. Independent predictors of increased LOS were extreme prematurity (<28 weeks' gestation) (OR: 14.7, P = .03), non-White race (OR: 5.7, P = .03), and complicated cellulitis (OR: 6.4, P = .03). No significant predictors of complicated cellulitis were identified. CONCLUSIONS This study identifies complicated cellulitis in the NICU as an independent predictor of increased hospital LOS in neonates. Implementation of strategies to mitigate the development of cellulitis may decrease LOS among this high-risk population.
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Affiliation(s)
- Bethany Cucka
- Department of Dermatology, Massachusetts General Hospital, Boston, MA
| | - Bianca Biglione
- Department of Dermatology, Massachusetts General Hospital, Boston, MA
| | - Joyce Xia
- Department of Dermatology, Massachusetts General Hospital, Boston, MA
| | - Alice J Tan
- Department of Dermatology, Massachusetts General Hospital, Boston, MA
| | - Sidharth Chand
- Department of Dermatology, Massachusetts General Hospital, Boston, MA
| | - Renajd Rrapi
- Department of Dermatology, Massachusetts General Hospital, Boston, MA
| | - Chadi El Saleeby
- Divisions of Hospital Medicine and Infectious Disease, Department of Pediatrics, Massachusetts General Hospital for Children, Boston, MA; Harvard Medical School, Boston, MA
| | - Daniela Kroshinsky
- Department of Dermatology, Massachusetts General Hospital, Boston, MA; Harvard Medical School, Boston, MA.
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3
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Tung JK, Rozenbaum D, Rrapi R, Chand S, Xue Y, Hoang MP, Kroshinsky D. Reply to Letter to the Editor in response to "Skin Biopsy in the Diagnosis of Intravascular Lymphoma: A Retrospective Diagnostic Accuracy Study". J Am Acad Dermatol 2023; 88:e49. [PMID: 34314744 DOI: 10.1016/j.jaad.2021.07.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Accepted: 07/16/2021] [Indexed: 11/30/2022]
Affiliation(s)
- Joe K Tung
- Dermatology Department, University of Pittsburgh Medical Center, Pennsylvania
| | | | - Renajd Rrapi
- Dermatology Department, Massachusetts General Hospital, Boston, Massachusetts
| | - Sidharth Chand
- Dermatology Department, Massachusetts General Hospital, Boston, Massachusetts
| | - Yun Xue
- Dermatology Department, Massachusetts General Hospital, Boston, Massachusetts
| | - Mai P Hoang
- Pathology Department, Massachusetts General Hospital, Boston, Massachusetts
| | - Daniela Kroshinsky
- Dermatology Department, Massachusetts General Hospital, Boston, Massachusetts.
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4
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Mahnoora Z, Nandakumar UP, Joel JJ, Kolar R, Chand S. Impact of education on the knowledge, attitude and practice of disposal of expired and unused medications among pharmacy students. Ann Pharm Fr 2022:S0003-4509(22)00180-8. [PMID: 36572275 DOI: 10.1016/j.pharma.2022.12.008] [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: 10/19/2022] [Accepted: 12/20/2022] [Indexed: 12/24/2022]
Abstract
OBJECTIVE To assess the impact of education among pharmacy students on their level of knowledge, attitude and practices in the disposal of expired and unused medications. MATERIALS AND METHODS A pre-test post-test study without control group was conducted in which a total of 573 students pursuing Bachelor of Pharmacy and Doctor of Pharmacy programmes were enrolled. The impact of education provided was analysed with the aid of a previously validated KAP questionnaire. Data on KAP was analysed using SPSS software 24.0. RESULTS AND DISCUSSION The knowledge, attitude and practice of the total students improved from 74.17±17.063 to 91.06±11.87, 75.92±19.26 to 91.73±12.318 and 43.11±22.77 to 82.06±16.149 respectively. The improvement with respect to knowledge and attitude was significantly high among Doctor of Pharmacy students when compared to Bachelor of Pharmacy, with P value<0.001 for both domains. CONCLUSION The present study concludes on the effectiveness of educational intervention in generating a positive impact on the student population with respective to adequate disposal practices to be followed for unused and expired medications.
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Affiliation(s)
- Z Mahnoora
- Nitte (Deemed to be University), NGSM Institute of Pharmaceutical Sciences (NGSMIPS), Department of Pharmacy Practice, Mangaluru, Karnataka 575018, India
| | - U P Nandakumar
- Nitte (Deemed to be University), NGSM Institute of Pharmaceutical Sciences (NGSMIPS), Department of Pharmacy Practice, Mangaluru, Karnataka 575018, India.
| | - J J Joel
- Nitte (Deemed to be University), NGSM Institute of Pharmaceutical Sciences (NGSMIPS), Department of Pharmacy Practice, Mangaluru, Karnataka 575018, India.
| | - R Kolar
- Nitte (Deemed to be University), KS Hegde Medical Academy (KSHEMA), Department of Community Medicine, Mangaluru, Karnataka 575018, India.
| | - S Chand
- Amity Institute of Pharmacy, Amity University Uttar Pradesh, Noida, Lucknow, India.
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5
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Chand S, Rrapi R, Gabel CK, Song S, Shah R, El Saleeby C, Kroshinsky D. Groin and buttocks involvement and methicillin-resistant Staphylococcus aureus nasal swab independently predict cutaneous abscess and methicillin-resistant Staphylococcus aureus infection in inpatient pediatric cellulitis: A retrospective cohort study. J Am Acad Dermatol 2022; 87:1205-1207. [PMID: 35288201 DOI: 10.1016/j.jaad.2022.02.065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 01/27/2022] [Accepted: 02/22/2022] [Indexed: 11/27/2022]
Affiliation(s)
- Sidharth Chand
- Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts
| | - Renajd Rrapi
- Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts
| | - Colleen K Gabel
- Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts
| | - Sarah Song
- Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts
| | - Radhika Shah
- Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts
| | - Chadi El Saleeby
- Department of Pediatrics, Divisions of Hospital Medicine and Infectious Disease, Massachusetts General Hospital for Children, Boston, Massachusetts
| | - Daniela Kroshinsky
- Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts.
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6
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Cucka B, Biglione B, Zhou L, Phillips EJ, Bassir F, Samarakoon U, Rrapi R, Chand S, Wang L, Alvarez-Arango S, Blumenthal KG, Kroshinsky D. Drug reaction with eosinophilia and systemic symptoms in patients hospitalized with COVID-19: a case series from a large US healthcare system. Br J Dermatol 2022; 187:619-622. [PMID: 35700153 PMCID: PMC9350236 DOI: 10.1111/bjd.21706] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 06/03/2022] [Accepted: 06/11/2022] [Indexed: 11/28/2022]
Affiliation(s)
- Bethany Cucka
- Department of Dermatology, Massachusetts General Hospital, Boston, MA, USA
| | - Bianca Biglione
- Department of Dermatology, Massachusetts General Hospital, Boston, MA, USA
| | - Li Zhou
- Division of General Internal Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
| | - Elizabeth J Phillips
- Center for Drug Safety and Immunology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Fatima Bassir
- Division of General Internal Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, MA, USA
| | - Upeka Samarakoon
- Division of Rheumatology, Allergy and Immunology, Department of Medicine, Massachusetts General Hospital, Boston, MA, USA
| | - Renajd Rrapi
- Department of Dermatology, Massachusetts General Hospital, Boston, MA, USA
| | - Sidharth Chand
- Department of Dermatology, Massachusetts General Hospital, Boston, MA, USA
| | - Liqin Wang
- Division of General Internal Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
| | - Santiago Alvarez-Arango
- Division of Clinical Pharmacology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Division of Allergy and Clinical Immunology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Kimberly G Blumenthal
- Division of Rheumatology, Allergy and Immunology, Department of Medicine, Massachusetts General Hospital, Boston, MA, USA
| | - Daniela Kroshinsky
- Department of Dermatology, Massachusetts General Hospital, Boston, MA, USA
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7
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Chand S, Rrapi R, Gabel CK, El Saleeby C, Kroshinsky D. Groin and buttocks involvement and methicillin-resistant Staphylococcus aureus nasal swab independently predict cutaneous abscess and methicillin-resistant Staphylococcus aureus infection in inpatient pediatric cellulitis: A retrospective cohort study. J Am Acad Dermatol 2022; 88:e281. [PMID: 36152696 DOI: 10.1016/j.jaad.2022.09.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Accepted: 09/14/2022] [Indexed: 10/14/2022]
Affiliation(s)
- Sidharth Chand
- Department of Dermatology, Massachusetts General Hospital
| | - Renajd Rrapi
- Department of Dermatology, Massachusetts General Hospital
| | | | - Chadi El Saleeby
- Department of Pediatrics, Divisions of Hospital Medicine and Infectious Disease, Massachusetts General Hospital for Children
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8
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Biglione B, Cucka B, Chand S, Rrapi R, Gabel C, Song S, Kroshinsky D. 221 Distinguishing clinical features for pseudocellulitis in pediatric inpatients: A retrospective study. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.05.228] [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: 10/17/2022]
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9
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Chand S, Mihooliya KN, Sahoo DK, Prasad JP, Sharma G. L-asparaginase from Bacillus flexus strain SS: Isolation, Screening, Production Process Optimization, Purification, and Anticancer Activity. APPL BIOCHEM MICRO+ 2022. [DOI: 10.1134/s0003683822040032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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10
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Cucka B, Biglione B, Chand S, Rrapi R, Gabel C, Song S, Kroshinsky D. 361 Utilization of resources for cellulitis in hospitalized patients: Predictors of cutaneous abscess diagnosed on ultrasound. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.05.370] [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: 10/17/2022]
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11
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Biglione B, Cucka B, Chand S, Smith G, Yun B, Kroshinsky D. 363 Analysis of dermatology consultation follow-up after emergency department evaluation: An assessment of disparities and potential interventions to increase post-discharge care among vulnerable populations. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.05.372] [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: 10/17/2022]
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12
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Biglione B, Cucka B, Chand S, Rrapi R, Gabel CK, Song S, Kroshinsky D. Distinguishing clinical features for pseudocellulitis in pediatric inpatients: A retrospective study. Pediatr Dermatol 2022; 39:570-573. [PMID: 35713395 DOI: 10.1111/pde.15014] [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: 02/03/2022] [Revised: 03/31/2022] [Accepted: 04/10/2022] [Indexed: 11/30/2022]
Abstract
The clinical features of 588 pediatric inpatients admitted with a diagnosis of cellulitis were reviewed with attention to diagnostic accuracy of true cellulitis (95.1%) versus pseudocellulitis (4.9%) and utilization of specialist consultations (28.1% infectious disease, 6.1% dermatology). Laboratory abnormalities were unable to distinguish cellulitis from pseudocellulitis, supporting previous studies that routine laboratory evaluation may be unnecessary for this diagnosis. Higher rates of pseudocellulitis were identified in cases involving specialist consultation by both dermatology (44.8% pseudocellulitis, 4.1% true cellulitis, p < .001) and infectious disease (48.3% pseudocellulitis, 27.0% true cellulitis, p = .01). Thus, consultation may improve the diagnostic accuracy of suspected cellulitis among pediatric inpatients.
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Affiliation(s)
- Bianca Biglione
- Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Bethany Cucka
- Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Sidharth Chand
- Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Renajd Rrapi
- Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Colleen K Gabel
- Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Sarah Song
- Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Daniela Kroshinsky
- Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts, USA
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13
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Cucka B, Biglione B, Chand S, Rrapi R, Gabel CK, Song S, Kroshinsky D. Utilization of resources for cellulitis in hospitalized patients: predictors of cutaneous abscess diagnosed on ultrasound. J Eur Acad Dermatol Venereol 2022; 36:e889-e891. [PMID: 35691015 DOI: 10.1111/jdv.18321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Accepted: 06/03/2022] [Indexed: 11/29/2022]
Affiliation(s)
- B Cucka
- Department of Dermatology, Massachusetts General Hospital, Boston, MA, USA
| | - B Biglione
- Department of Dermatology, Massachusetts General Hospital, Boston, MA, USA
| | - S Chand
- Department of Dermatology, Massachusetts General Hospital, Boston, MA, USA
| | - R Rrapi
- Department of Dermatology, Massachusetts General Hospital, Boston, MA, USA
| | - C K Gabel
- Department of Dermatology, Massachusetts General Hospital, Boston, MA, USA
| | - S Song
- Department of Dermatology, Massachusetts General Hospital, Boston, MA, USA
| | - D Kroshinsky
- Department of Dermatology, Massachusetts General Hospital, Boston, MA, USA
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14
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Rick J, Rrapi R, Chand S, Shinohara MM, Strowd L, Pasieka HB, Michelleti R, Kroshinsky D, Ortega-Loayza AG. Calciphylaxis: Treatment and Outlook CME Part II. J Am Acad Dermatol 2022; 86:985-992. [PMID: 35202773 DOI: 10.1016/j.jaad.2021.10.063] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 10/15/2021] [Accepted: 10/19/2021] [Indexed: 10/19/2022]
Affiliation(s)
- Jonathan Rick
- University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Renajd Rrapi
- Harvard Medical School, Cambridge, Massachusetts, USA
| | | | | | | | - Helena B Pasieka
- Georgetown University School of Medicine, Washington, DC, USA; Uniformed Services University School of Medicine, Bethesda, MD, USA
| | - Robert Michelleti
- University of Pennsylvania School of Medicine, Philadelphia, PA, USA
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15
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Chand S, Wilcox I, McGrady M, Lal S, Hunyor I, O'Sullivan J, Fulthorp E, Price M, Mccoll A. Clinical and Echocardiographic Parameters in Community-Based Individuals Symptomatic Post Pfizer and AstraZeneca COVID-19 Vaccination. Heart Lung Circ 2022. [PMCID: PMC9345547 DOI: 10.1016/j.hlc.2022.06.234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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16
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Trinidad J, Gabel CK, Bonomo L, Cartron A, Chand S, Coburn W, Daveluy S, Davis M, DeNiro KL, Guggina LM, Han JJ, Hennessy K, Hoffman M, Katz K, Keller JJ, Kim SJ, Konda S, Lake E, Lincoln FN, Lo JA, Markova A, Marvin EK, Micheletti RG, Newman S, Nutan F, Nguyen CV, Pahalyants V, Patel J, Rahnama-Moghadam S, Rambhatla PV, Riegert M, Reingold RE, Robinson DB, Rrapi R, Sartori-Valinotti JC, Seminario-Vidal L, Sharif-Sidi Z, Smogorzewski J, Spaccarelli N, Stewart JR, Tuttle SD, Ulrich MN, Wanat KA, Xia FD, Kaffenberger B, Kroshinsky D. Telemedicine and Dermatology Hospital Consultations During The COVID-19 Pandemic: A Multi-Center Observational Study on Resource Utilization and Conversion to In-Person Consultations During the COVID-19 Pandemic. J Eur Acad Dermatol Venereol 2021; 36:e323-e325. [PMID: 34932237 DOI: 10.1111/jdv.17898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 11/25/2021] [Accepted: 12/15/2021] [Indexed: 11/28/2022]
Affiliation(s)
- John Trinidad
- The Ohio State University College of Medicine, Columbus.,Division of Dermatology, Department of Internal Medicine, The Ohio State University Wexner Medical Center, Columbus
| | - Colleen K Gabel
- Department of Dermatology, Massachusetts General Hospital, Harvard Medical School, Boston
| | - Lauren Bonomo
- Division of Dermatology, Department of Medicine, University of Washington School of Medicine, Seattle
| | - Alexander Cartron
- Department of Dermatology, University of Maryland School of Medicine, Baltimore
| | - Sidharth Chand
- Department of Dermatology, Massachusetts General Hospital, Harvard Medical School, Boston
| | - William Coburn
- Department of Dermatology, University of Colorado School of Medicine, Aurora
| | | | - Mark Davis
- Department of Dermatology, Mayo Clinic, Rochester
| | - Katherine L DeNiro
- Division of Dermatology, Department of Medicine, University of Washington School of Medicine, Seattle
| | - Lauren M Guggina
- Department of Dermatology, Brigham and Women's Hospital, Harvard Medical School, Boston
| | - Jane J Han
- Division of Dermatology, Loyola University Medical Center, Maywood
| | - Kerry Hennessy
- Department of Dermatology and Cutaneous Surgery, University of South Florida Morsani College of Medicine, Tampa
| | - Melissa Hoffman
- Department of Dermatology, University of Pennsylvania School of Medicine, Philadelphia
| | - Kimberly Katz
- Department of Dermatology, Medical College of Wisconsin, Milwaukee
| | - Jesse J Keller
- Department of Dermatology, Oregon Health and Science University, Portland
| | - Soo Jung Kim
- Department of Dermatology, Baylor College of Medicine, Houston
| | | | - Eden Lake
- Division of Dermatology, Loyola University Medical Center, Maywood
| | - Flossy N Lincoln
- Department of Dermatology, Northwestern University Feinberg School of Medicine, Chicago
| | - Jennifer A Lo
- Department of Dermatology, Massachusetts General Hospital, Harvard Medical School, Boston
| | - Alina Markova
- Dermatology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York.,Department of Dermatology, Weill Cornell Medical College, New York
| | | | - Robert G Micheletti
- Department of Dermatology, University of Pennsylvania School of Medicine, Philadelphia
| | - Sabrina Newman
- Department of Dermatology, University of Colorado School of Medicine, Aurora
| | - Fnu Nutan
- Department of Dermatology, Virginia Commonwealth University, Richmond
| | - Cuong V Nguyen
- Department of Dermatology, Northwestern University Feinberg School of Medicine, Chicago
| | - Vartan Pahalyants
- Department of Dermatology, Massachusetts General Hospital, Harvard Medical School, Boston
| | - Jay Patel
- Department of Dermatology, Baylor College of Medicine, Houston
| | | | | | - Maureen Riegert
- Division of Dermatology, Loyola University Medical Center, Maywood
| | - Rachel E Reingold
- Dermatology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York.,Albert Einstein College of Medicine, Bronx
| | | | - Renajd Rrapi
- Department of Dermatology, Massachusetts General Hospital, Harvard Medical School, Boston
| | | | - Lucia Seminario-Vidal
- Department of Dermatology and Cutaneous Surgery, University of South Florida Morsani College of Medicine, Tampa
| | | | | | | | | | | | | | - Karolyn A Wanat
- Department of Dermatology, Medical College of Wisconsin, Milwaukee
| | - Fan Di Xia
- Department of Dermatology, Massachusetts General Hospital, Harvard Medical School, Boston
| | - Benjamin Kaffenberger
- The Ohio State University College of Medicine, Columbus.,Division of Dermatology, Department of Internal Medicine, The Ohio State University Wexner Medical Center, Columbus
| | - Daniela Kroshinsky
- Department of Dermatology, Massachusetts General Hospital, Harvard Medical School, Boston
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17
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Rrapi R, Chand S, Gaffney R, Lo JA, Smith JS, Xia FD, Chen ST, Duncan LM, Foreman RK, Hartman RI, Hoang MP, Piris A, Walls AC, Kroshinsky D. Cutaneous mucormycosis arising in the skin folds of immunocompromised patients: A case series. JAAD Case Rep 2021; 17:92-95. [PMID: 34746347 PMCID: PMC8551783 DOI: 10.1016/j.jdcr.2021.06.022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- Renajd Rrapi
- Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts
| | - Sidharth Chand
- Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts
| | - Rebecca Gaffney
- Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts.,Harvard Combined Dermatology Residency, Harvard Medical School, Boston, Massachusetts
| | - Jennifer A Lo
- Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts.,Harvard Combined Dermatology Residency, Harvard Medical School, Boston, Massachusetts
| | - Jeffrey S Smith
- Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts.,Harvard Combined Dermatology Residency, Harvard Medical School, Boston, Massachusetts
| | - Fan Di Xia
- Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts.,Harvard Combined Dermatology Residency, Harvard Medical School, Boston, Massachusetts
| | - Steven T Chen
- Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts
| | - Lyn M Duncan
- Department of Pathology, Harvard Medical School and Massachusetts General Hospital, Boston, Massachusetts
| | - Ruth K Foreman
- Department of Pathology, Harvard Medical School and Massachusetts General Hospital, Boston, Massachusetts
| | - Rebecca I Hartman
- Department of Dermatology, Brigham and Women's Hospital, Boston, Massachusetts.,Department of Dermatology, Veterans Integrated Service Network (VISN-1), Jamaica Plain, Massachusetts
| | - Mai P Hoang
- Department of Pathology, Harvard Medical School and Massachusetts General Hospital, Boston, Massachusetts
| | - Adriano Piris
- Department of Pathology, Harvard Medical School and Brigham and Women's Hospital, Boston, Massachusetts
| | - Andrew C Walls
- Department of Dermatology, Brigham and Women's Hospital, Boston, Massachusetts
| | - Daniela Kroshinsky
- Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts
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Chand S, Rrapi R, Gabel C, Nguyen E, Ko L, Dobry A, Garza-Mayers A, Shah R, St. John J, Strazzula L, Kroshinsky D. LB780 Risk factors predicting Cellulitis diagnosis in a prospective cohort undergoing dermatology consultation in the Emergency Department. J Invest Dermatol 2021. [DOI: 10.1016/j.jid.2021.07.114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Chand S, Rrapi R, Song S, Gabel C, Kroshinsky D. 26942 Nasal swabs may effectively guide methicillin-resistant Staphylococcus aureus (MRSA) coverage for pediatric cellulitis: A retrospective study. J Am Acad Dermatol 2021. [DOI: 10.1016/j.jaad.2021.06.132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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20
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Chand S, Rrapi R, Song S, Gabel C, Kroshinsky D. 26917 Clinical utility of imaging for evaluation of cellulitis in hospitalized pediatric patients. J Am Acad Dermatol 2021. [DOI: 10.1016/j.jaad.2021.06.130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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21
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Chand S, Rrapi R, Gabel C, Nguyen E, Dobry A, Garza-Mayers A, Ko L, Shah R, St. John J, Strazzula L, Nigwekar S, Kroshinsky D. LB779 Comparison of outcomes for intravenous and intralesional administration of sodium thiosulfate for treatment of Calciphylaxis. J Invest Dermatol 2021. [DOI: 10.1016/j.jid.2021.07.045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Abstract
Cellulitis is a common skin infection resulting in increasing hospitalizations and health care costs. There is no gold standard diagnostic test, making cellulitis a potentially challenging condition to distinguish from other mimickers. Physical examination typically demonstrates poorly demarcated unilateral erythema with warmth and tenderness. Thorough history and clinical examination can narrow the differential diagnosis of cellulitis and minimize unnecessary hospitalization. Antibiotic selection is determined by patient history and risk factors, severity of clinical presentation, and the most likely microbial culprit.
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Affiliation(s)
- Renajd Rrapi
- Department of Dermatology, Massachusetts General Hospital, 50 Staniford Street, 2nd Floor, Boston, MA 02114, USA
| | - Sidharth Chand
- Department of Dermatology, Massachusetts General Hospital, 50 Staniford Street, 2nd Floor, Boston, MA 02114, USA
| | - Daniela Kroshinsky
- Department of Dermatology, Massachusetts General Hospital, 50 Staniford Street, 2nd Floor, Boston, MA 02114, USA.
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23
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Rrapi R, Chand S, Lo JA, Gabel CK, Song S, Holcomb Z, Iriarte C, Moore K, Shi CR, Song H, Xia FD, Yanes D, Gandhi R, Triant VA, Kroshinsky D. The significance of exanthems in COVID-19 patients hospitalized at a tertiary care centre. J Eur Acad Dermatol Venereol 2021; 35:e640-e642. [PMID: 34146347 PMCID: PMC8447347 DOI: 10.1111/jdv.17459] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- R Rrapi
- Department of Dermatology, Massachusetts General Hospital, Boston, MA, USA
| | - S Chand
- Department of Dermatology, Massachusetts General Hospital, Boston, MA, USA
| | - J A Lo
- Department of Dermatology, Massachusetts General Hospital, Boston, MA, USA.,Harvard Combined Dermatology Residency, Harvard Medical School, Boston, MA, USA
| | - C K Gabel
- Department of Dermatology, Massachusetts General Hospital, Boston, MA, USA
| | - S Song
- Department of Dermatology, Massachusetts General Hospital, Boston, MA, USA
| | - Z Holcomb
- Department of Dermatology, Massachusetts General Hospital, Boston, MA, USA.,Harvard Combined Dermatology Residency, Harvard Medical School, Boston, MA, USA
| | - C Iriarte
- Department of Dermatology, Massachusetts General Hospital, Boston, MA, USA.,Harvard Combined Dermatology Residency, Harvard Medical School, Boston, MA, USA
| | - K Moore
- Department of Dermatology, Massachusetts General Hospital, Boston, MA, USA.,Harvard Combined Dermatology Residency, Harvard Medical School, Boston, MA, USA
| | - C R Shi
- Department of Dermatology, Massachusetts General Hospital, Boston, MA, USA.,Harvard Combined Dermatology Residency, Harvard Medical School, Boston, MA, USA
| | - H Song
- Department of Dermatology, Massachusetts General Hospital, Boston, MA, USA.,Harvard Combined Dermatology Residency, Harvard Medical School, Boston, MA, USA
| | - F D Xia
- Department of Dermatology, Massachusetts General Hospital, Boston, MA, USA.,Harvard Combined Dermatology Residency, Harvard Medical School, Boston, MA, USA
| | - D Yanes
- Department of Dermatology, Massachusetts General Hospital, Boston, MA, USA.,Harvard Combined Dermatology Residency, Harvard Medical School, Boston, MA, USA
| | - R Gandhi
- Division of Infectious Diseases, Massachusetts General Hospital, Boston, MA, USA
| | - V A Triant
- Division of Infectious Diseases, Massachusetts General Hospital, Boston, MA, USA.,Division of General Internal Medicine, Massachusetts General Hospital, Boston, MA, USA
| | - D Kroshinsky
- Department of Dermatology, Massachusetts General Hospital, Boston, MA, USA
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24
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Rrapi R, Chand S, Song S, Gabel CK, Shah R, El Saleeby C, Kroshinsky D. Methicillin-resistant Staphylococcus aureus (MRSA) nasal colonization predicts MRSA infection in inpatient paediatric cellulitis. Br J Dermatol 2021; 185:842-844. [PMID: 33959941 DOI: 10.1111/bjd.20439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Revised: 04/30/2021] [Accepted: 05/04/2021] [Indexed: 11/29/2022]
Affiliation(s)
- R Rrapi
- Department of Dermatology, Massachusetts General Hospital, Boston, MA, USA
| | - S Chand
- Department of Dermatology, Massachusetts General Hospital, Boston, MA, USA
| | - S Song
- Department of Dermatology, Massachusetts General Hospital, Boston, MA, USA
| | - C K Gabel
- Department of Dermatology, Massachusetts General Hospital, Boston, MA, USA
| | - R Shah
- Department of Dermatology, Massachusetts General Hospital, Boston, MA, USA
| | - C El Saleeby
- Department of Paediatrics, Divisions of Hospital Medicine and Infectious Disease, Massachusetts General Hospital for Children, Boston, MA, USA
| | - D Kroshinsky
- Department of Dermatology, Massachusetts General Hospital, Boston, MA, USA
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25
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Chand S, Rrapi R, Lam J, Chakrala T, Yi Z, Song S, Nguyen E, Kroshinsky D. 310 Risk factors associated with detection of cutaneous abscess on ultrasonography in patients with cellulitis. J Invest Dermatol 2021. [DOI: 10.1016/j.jid.2021.02.332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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26
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Chand S, Rrapi R, Gabel C, Song S, Shah R, El Saleeby C, Kroshinsky D. 443 Clinical risk factors associated with MRSA incidence in inpatient pediatric cellulitis. J Invest Dermatol 2021. [DOI: 10.1016/j.jid.2021.02.466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Affiliation(s)
- Renajd Rrapi
- Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts
| | - Sidharth Chand
- Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts
| | - Colleen Gabel
- Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts
| | - Lauren Ko
- Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts
| | - Kevin J Moore
- Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts
| | - David Steele
- Department of Nephrology, Massachusetts General Hospital, Boston, Massachusetts
| | - Daniela Kroshinsky
- Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts
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Rrapi R, Chand S, Lo JA, Gabel CK, Song S, Holcomb Z, Iriarte C, Moore K, Shi CR, Song H, Di Xia F, Yanes D, Gandhi R, Triant VA, Kroshinsky D. The significance of pressure injuries and purpura in COVID-19 patients hospitalized at a large urban academic medical center: A retrospective cohort study. J Am Acad Dermatol 2021; 85:462-464. [PMID: 33753253 PMCID: PMC7979268 DOI: 10.1016/j.jaad.2021.03.051] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Revised: 03/08/2021] [Accepted: 03/12/2021] [Indexed: 11/30/2022]
Affiliation(s)
- Renajd Rrapi
- Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts
| | - Sidharth Chand
- Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts
| | - Jennifer A Lo
- Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts; Harvard Combined Dermatology Residency, Harvard Medical School, Boston, Massachusetts
| | - Colleen K Gabel
- Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts
| | - Sarah Song
- Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts
| | - Zachary Holcomb
- Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts; Harvard Combined Dermatology Residency, Harvard Medical School, Boston, Massachusetts
| | - Christopher Iriarte
- Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts; Harvard Combined Dermatology Residency, Harvard Medical School, Boston, Massachusetts
| | - Kevin Moore
- Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts; Harvard Combined Dermatology Residency, Harvard Medical School, Boston, Massachusetts
| | - Connie R Shi
- Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts; Harvard Combined Dermatology Residency, Harvard Medical School, Boston, Massachusetts
| | - Hannah Song
- Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts; Harvard Combined Dermatology Residency, Harvard Medical School, Boston, Massachusetts
| | - Fan Di Xia
- Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts; Harvard Combined Dermatology Residency, Harvard Medical School, Boston, Massachusetts
| | - Daniel Yanes
- Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts; Harvard Combined Dermatology Residency, Harvard Medical School, Boston, Massachusetts
| | - Rajesh Gandhi
- Division of Infectious Diseases, Massachusetts General Hospital, Boston, Massachusetts
| | - Virginia A Triant
- Division of Infectious Diseases, Massachusetts General Hospital, Boston, Massachusetts; Division of General Internal Medicine, Massachusetts General Hospital, Boston, Massachusetts
| | - Daniela Kroshinsky
- Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts.
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Chand S, Rrapi R, Gabel CK, Song S, Shah R, El Saleeby C, Kroshinsky D. Clinical features and outcomes for nonabscess cellulitis in hospitalized pediatric patients. J Am Acad Dermatol 2021; 86:226-229. [PMID: 33539848 DOI: 10.1016/j.jaad.2021.01.093] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 12/18/2020] [Accepted: 01/28/2021] [Indexed: 10/22/2022]
Affiliation(s)
- Sidharth Chand
- Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts
| | - Renajd Rrapi
- Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts
| | - Colleen K Gabel
- Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts
| | - Sarah Song
- Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts
| | - Radhika Shah
- Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts
| | - Chadi El Saleeby
- Department of Pediatrics, Divisions of Hospital Medicine and Infectious Disease, Massachusetts General Hospital for Children, Boston, Massachusetts
| | - Daniela Kroshinsky
- Department of Dermatology, Massachusetts General Hospital, Boston, Massachusetts.
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30
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Chand S, Rrapi R, Song S, Gabel CK, Shah R, El Saleeby C, Kroshinsky D. Use of resources for pediatric cellulitis in hospitalized patients: Evaluating the benefit of imaging and blood cultures. J Am Acad Dermatol 2020; 85:1611-1613. [DOI: 10.1016/j.jaad.2020.12.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 12/03/2020] [Accepted: 12/05/2020] [Indexed: 11/28/2022]
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31
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Shyam S, Goel P, Kumar D, Malpotra S, Singh MK, Lathwal SS, Chand S, Palta P. Effect of Dickkopf-1 and colony stimulating factor-2 on the developmental competence, quality, gene expression and live birth rate of buffalo (Bubalus bubalis) embryos produced by hand-made cloning. Theriogenology 2020; 157:254-262. [PMID: 32823021 DOI: 10.1016/j.theriogenology.2020.07.022] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 06/07/2020] [Accepted: 07/25/2020] [Indexed: 01/23/2023]
Abstract
A functional canonical WNT signaling pathway exists in preimplantation embryos and inhibits embryonic development. Recent studies suggest that this pathway is over-expressed in nuclear transferred (NT), compared to IVF embryos. The present study investigated the effects of Dickkopf-1 (DKK1), an inhibitor of canonical WNT signaling pathway and colony stimulating factor-2 (CSF2), an embryokine, on the developmental competence, quality, gene expression and live birth rate of NT buffalo embryos produced by Hand-made cloning (HMC). Following supplementation of the in vitro culture medium on day 5 with DKK1 (100 ng/mL), CSF2 (10 ng/mL), DKK1+CSF2 or no supplementation (control), the blastocyst rate was higher (P < 0.05) with DKK1 and DKK1+CSF2 (42.6 ± 1.4% and 46.6 ± 0.9%, respectively) than with CSF2 or controls (40.6 ± 1.3% and 39.0 ± 1.3%, respectively). The apoptotic index of the blastocysts was lower (P < 0.05) for DKK1, CSF2 and DKK1+CSF2 groups (3.44 ± 0.14, 3.39 ± 0.11 and 3.11 ± 0.22, respectively) compared to controls (6.64 ± 0.25), and was similar to that of the IVF blastocysts (3.67 ± 0.18). Although the total cell number was similar for the DKK1, CSF2, DKK1+CSF2 and control groups (200.4 ± 3.05, 196.4 ± 3.73, 204.7 ± 3.71 and 205 ± 4.03, respectively), the inner cell mass:trophectoderm cell number ratio of DKK1, CSF2 and DKK1+CSF2 groups (0.21 ± 0.01, 0.17 ± 0.01 and 0.22 ± 0.02, respectively) was higher (P < 0.05) than controls (0.13 ± 0.01) and was similar to that of IVF blastocysts (0.19 ± 0.01). Treatment with DKK1 or CSF2 or both increased (P < 0.05) the expression level of OCT4, NANOG,SOX2, GATA6, BCL2, PTEN, P53, FGF4, GLUT1 and IFN-τ, and decreased that of C-MYC, CDX2, CASPASE, DNMT3a, TCF7 and LEF1 in blastocysts, compared to controls. Transfer of DKK1-treated embryos to 13 recipients resulted in 4 pregnancies (30.8%; 2 live births, one abortion and one currently at 9 months of pregnancy) whereas, transfer of DKK1+CSF2-treated embryos to 16 recipients, resulted in 4 pregnancies (25.0%), all of which resulted in live births. No pregnancy was obtained after transfer of control and CSF-treated embryos to 12 and 16 recipients, respectively. These results suggest that DKK1 treatment of NT embryos increases the blastocyst, conception and live birth rate, and improves their quality whereas, CSF2 treatment, does not affect the blastocyst, conception and live birth rate despite improvement in embryo quality.
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Affiliation(s)
- S Shyam
- ICAR-National Dairy Research Institute, Karnal, 132001, Haryana, India
| | - P Goel
- ICAR-National Dairy Research Institute, Karnal, 132001, Haryana, India
| | - D Kumar
- ICAR-National Dairy Research Institute, Karnal, 132001, Haryana, India
| | - S Malpotra
- ICAR-National Dairy Research Institute, Karnal, 132001, Haryana, India
| | - M K Singh
- ICAR-National Dairy Research Institute, Karnal, 132001, Haryana, India
| | - S S Lathwal
- ICAR-National Dairy Research Institute, Karnal, 132001, Haryana, India
| | - S Chand
- ICAR-National Dairy Research Institute, Karnal, 132001, Haryana, India
| | - P Palta
- ICAR-National Dairy Research Institute, Karnal, 132001, Haryana, India.
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Talukder S, Mendiratta SK, Kumar RR, Agrawal RK, Soni A, Luke A, Chand S. Jamun fruit ( Syzgium cumini) skin extract based indicator for monitoring chicken patties quality during storage. J Food Sci Technol 2020; 57:537-548. [PMID: 32116363 PMCID: PMC7016058 DOI: 10.1007/s13197-019-04084-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 08/31/2019] [Accepted: 09/04/2019] [Indexed: 11/25/2022]
Abstract
Natural plant pigment, anthocyanins have the capability to change its color with the change of its structure influenced by changing pH. This feature of anthocyanin has been harnessed to design a meat products quality indicator. In the present experiment anthocyanin rich Jamun fruit (Syzgium cumini) skin extract was used to develop quality indicator by immobilizing on filter paper strips with the purpose of application in chicken patties packets stored at refrigeration temperature (4 ± 1 °C). The indicator changed its color from violet to yellow due to changed pH in it when it was attached inside packet of chicken patties during storage, due to reaction with volatile basic compounds generated from meat. During storage for 21 days, various changes in quality attributes of chicken patties viz., pH, Total volatile basic nitrogen (TVBN), ammonia level, color value, sensory attributes and microbial evaluation were estimated. The pH decreased (P < 0.5) from 6.22 to 6.04. TVBN and ammonia and level increased significantly (P < 0.5) throughout storage. Redness, yellowness, hue and chroma value gradually changed during storage. Sensory scores also decreased significantly (P < 0.5). Microbial count also increased (P < 0.5) during this time. The experiment showed that, during storage, the color changing pattern of quality indicator was well correlated with the changes in quality attributes of chicken meat patties. Therefore, it is expected that the developed quality indicator can provide a convenient, non destructive, visual mean to monitor the meat products quality during refrigerated storage.
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Affiliation(s)
- S. Talukder
- Division of Livestock Products Technology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, UP 243122 India
| | - S. K. Mendiratta
- Division of Livestock Products Technology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, UP 243122 India
| | - R. R. Kumar
- Division of Livestock Products Technology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, UP 243122 India
| | - R. K. Agrawal
- Division of Livestock Products Technology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, UP 243122 India
| | - A. Soni
- Division of Livestock Products Technology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, UP 243122 India
| | - A. Luke
- Division of Livestock Products Technology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, UP 243122 India
| | - S. Chand
- Division of Livestock Products Technology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, UP 243122 India
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Sunny S, Shastry CS, Mateti UV, Chand S, Sharma R. Pharmacoeconomic Evaluation on Treatment of Diabetic Patients in a Charitable Hospital. Indian J Pharm Sci 2020. [DOI: 10.36468/pharmaceutical-sciences.678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Abstract
PURPOSE We assessed the pattern of relapse as well as the correlation between the number of casts required for correction and Pirani and Dimeglio scores at presentation, and age at presentation. We hypothesized that the Ponseti method would be effective in treatment of relapsed clubfoot as well. METHODS We evaluated 115 idiopathic clubfeet in 79 children presenting with relapse following treatment by the Ponseti method. The mean age was 33.8 months with mean follow-up of 24 months. All patients were assessed for various patterns of relapsed deformities. Quantification of deformities was done using the Pirani and Dimeglio scores. All relapsed feet were treated by a repeat Ponseti protocol. RESULTS Non-compliance to a foot abduction brace was observed to be the main contributing factor in relapse, in 99 clubfeet (86%). Combination of three static deformities (equinus, varus and adduction) together was observed most commonly (38.3% feet). Overall, relapse of equinus deformity was noted most commonly followed by adduction. A painless plantigrade foot was obtained in all 115 feet with a mean of five casts. In all, 71 feet (61.7%) underwent percutaneous tenotomy. A total of 15 feet (13%) required tibialis anterior tendon transfer. Re-relapse rate in group 1 was 21% compared with 12.6% in group 2 and overall 16.5%. CONCLUSION We conclude that the Ponseti method is effective and the preferred initial treatment modality for relapsed clubfeet. Surgical intervention should be reserved for residual deformity only after a fair trial of Ponseti cast treatment. Regular follow-up and strict adherence to brace protocol may reduce future relapse rates. Further research is required to identify high-risk feet and develop individualized bracing protocol. LEVEL OF EVIDENCE IV.
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Affiliation(s)
- S. Chand
- Department of Orthopaedics, Lady Hardinge Medical College, New Delhi, India
| | - A. Mehtani
- Department of Orthopaedics, Post Graduate Institute of Medical Education and Research & Dr Ram Manohar Lohia Hospital, New Delhi, India
| | - A. Sud
- Department of Orthopaedics, Lady Hardinge Medical College, New Delhi, India
| | - J. Prakash
- Central Institute of Orthopaedics, VMMC & Safdarjung Hospital, New Delhi, India
| | - A. Sinha
- Department of Orthopaedics, Lady Hardinge Medical College, New Delhi, India
| | - A. Agnihotri
- Department of Orthopaedics, Lady Hardinge Medical College, New Delhi, India
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Chand S, McCraw A, Hutton R, Tuddenham EGD, Goodall AH. A Two-Site, Monoclonal Antibody-Based Immunoassay for von Willebrand Factor -Demonstration that vWF Function Resides in a Conformational Epitope. Thromb Haemost 2018. [DOI: 10.1055/s-0038-1661555] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
SummaryTwo monoclonal antibodies (RFF-VIII: R/l and RFF-VIII:R/ 2) which recognise the same epitope on von Willebrand factor (vWF) have been used in a simple, two-site, solid-phase immunoradiometric (IRMA) or enzyme-linked assay (ELISA) to analyse vWF in plasma from normal individuals and from patients with von Willebrand’s disease (vWD). Results obtained confirm our previous findings (using RFF-VIII :R/2 in a one-site, fluid-phase IRMA) that the MAbs detect the presence of an epitope on the vWF molecule that reflects its function. This epitope is involved in vWF binding to the GPIb protein on platelets. It is reduced in all types of vWD, including type II (or variant) vWD. It is present in normal plasma, in vWF released from normal platelets and from cultured umbilical cord vein endothelial cells. The epitope is, however, found to be reduced in serum. Studies on SDS-treated vWF prove that this GPIb-binding site is dependent on the conformation of the vWF multimers.
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Affiliation(s)
- S Chand
- The Academic Department of Immunology, Royal Free Hospital School of Medicine, London, UK
| | - A McCraw
- Katherine Dormandy, Haemophilia Centre, Royal Free Hospital School of Medicine, London, UK
| | - R Hutton
- Katherine Dormandy, Haemophilia Centre, Royal Free Hospital School of Medicine, London, UK
| | - E G D Tuddenham
- Katherine Dormandy, Haemophilia Centre, Royal Free Hospital School of Medicine, London, UK
| | - A H Goodall
- The Academic Department of Immunology, Royal Free Hospital School of Medicine, London, UK
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Radhakrishnan K, Saranya S, Chand S, Gopalan G, Jijitha V. A Facile Access to trans-3-Styryl-4-hydrazinocyclopentenes via Palladium-Catalyzed Ring Opening of Diazanorbornenes with (Z)-β-Bromostyrenes/2,3-Dibromohydrocinnamic Acids. SYNTHESIS-STUTTGART 2018. [DOI: 10.1055/s-0036-1589108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
trans-3-Styryl-4-hydrazinocyclopentenes have been synthesized via palladium-catalyzed desymmetrization of diazanorbornenes with (Z)-β-bromostyrenes. The reaction also works well with (Z)-β-bromostyrenes generated in situ from 2,3-dibromohydrocinnamic acids. The synthesized hydrazinocyclopentenes provide an easy route towards synthetic intermediates of many scaffolds of biological potential.
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Affiliation(s)
- K. Radhakrishnan
- Organic Chemistry Section, National Institute for Interdisciplinary Science and Technology (CSIR)
- Academy of Scientific and Innovative Research (AcSIR), CSIR-NIIST
| | - S. Saranya
- Organic Chemistry Section, National Institute for Interdisciplinary Science and Technology (CSIR)
| | - S. Chand
- Organic Chemistry Section, National Institute for Interdisciplinary Science and Technology (CSIR)
- Academy of Scientific and Innovative Research (AcSIR), CSIR-NIIST
| | - Greeshma Gopalan
- Organic Chemistry Section, National Institute for Interdisciplinary Science and Technology (CSIR)
- Academy of Scientific and Innovative Research (AcSIR), CSIR-NIIST
| | - V. Jijitha
- Organic Chemistry Section, National Institute for Interdisciplinary Science and Technology (CSIR)
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Gahlot SC, Kumar S, Kumaresan A, Chand S, Baithalu RK, Lathika S, Patbandha TK, Lathwal SS, Mohanty TK. Efficiency of uterine fluid cytology in the diagnosis of subclinical endometritis in the water buffalo (Bubalus bubalis). Reprod Domest Anim 2016; 52:513-516. [PMID: 27966806 DOI: 10.1111/rda.12899] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Accepted: 10/24/2016] [Indexed: 11/30/2022]
Abstract
This study compared endometrial cytology vis-a-vis uterine fluid cytology for assessment of uterine health in clinically normal and subclinical endometritis (SE)-affected buffaloes. Uterine fluid samples and endometrial samples were collected from the buffaloes (n = 38) at oestrus using blue sheath and cytobrush, respectively. The smears were stained with Field stain for 3 minutes, and a minimum of 400 cells were counted in each smear for determination of the percentage of polymorphonuclear (PMN) leucocyte. The incidence of subclinical endometritis, based on the cytobrush cytology, was 23.08%. The correlation between cytobrush cytology with uterine fluid cytology was positive and significant (r = .37; p = .02). The ratio of PMN leucocyte in cytobrush cytology to uterine fluid cytology was 1:2.4. ROC analysis revealed that the threshold value of 6.16% PMN leucocyte in uterine fluid cytology showed a diagnostic sensitivity and specificity of 100% in differentiating normal from SE-affected buffaloes. In conclusion, collection of uterine fluid was easier compared to collection of endometrial samples using cytobrush and the percentage of PMN leucocyte in uterine fluid cytology can be used as a tool for diagnosis of subclinical endometritis in buffaloes.
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Affiliation(s)
- S C Gahlot
- Animal Reproduction Gynaecology & Obstetrics, National Dairy Research Institute, Karnal, Haryana, India
| | - S Kumar
- Animal Reproduction Gynaecology & Obstetrics, National Dairy Research Institute, Karnal, Haryana, India
| | - A Kumaresan
- Animal Reproduction Gynaecology & Obstetrics, National Dairy Research Institute, Karnal, Haryana, India
| | - S Chand
- Animal Reproduction Gynaecology & Obstetrics, National Dairy Research Institute, Karnal, Haryana, India
| | - R K Baithalu
- Animal Reproduction Gynaecology & Obstetrics, National Dairy Research Institute, Karnal, Haryana, India
| | - S Lathika
- Animal Reproduction Gynaecology & Obstetrics, National Dairy Research Institute, Karnal, Haryana, India
| | - T K Patbandha
- Animal Reproduction Gynaecology & Obstetrics, National Dairy Research Institute, Karnal, Haryana, India
| | - S S Lathwal
- Animal Reproduction Gynaecology & Obstetrics, National Dairy Research Institute, Karnal, Haryana, India
| | - T K Mohanty
- Animal Reproduction Gynaecology & Obstetrics, National Dairy Research Institute, Karnal, Haryana, India
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Abstract
The health-conscious consumers are in search of nutritious and convenient food item which can be best suited in their busy life. The vegetarianism is the key for the search of such food which resembles the meat in respect of nutrition and sensory characters, but not of animal origin and contains vegetable or its modified form, this is the point when meat analog evolved out and gets shape. The consumers gets full satisfaction by consumption of meat analog due to its typical meaty texture, appearance and the flavor which are being imparted during the skilled production of meat analog. The supplement of protein in vegetarian diet through meat alike food can be fulfilled by incorporating protein-rich vegetative food grade materials in meat analog and by adopting proper technological process which can promote the proper fabrication of meat analog with acceptable meat like texture, appearance, flavor, etc. The easily available vegetables, cereals, and pulses in India have great advantages and prospects to be used in food products and it can improve the nutritional and functional characters of the food items. The various form and functional characters of food items are available world over and attracts the meat technologists and the food processors to bring some innovativeness in meat analog and its presentation and marketability so that the acceptability of meat analog can be overgrown by the consumers.
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Affiliation(s)
- O P Malav
- a Division of Livestock Products Technology , Indian Veterinary Research Institute , Izatnagar , Uttar Pradesh
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Shabir S, Smith H, Kaul B, Pachnio A, Jham S, Kuravi S, Ball S, Chand S, Moss P, Harper L, Borrows R. Cytomegalovirus-Associated CD4(+) CD28(null) Cells in NKG2D-Dependent Glomerular Endothelial Injury and Kidney Allograft Dysfunction. Am J Transplant 2016; 16:1113-28. [PMID: 26603521 DOI: 10.1111/ajt.13614] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2014] [Revised: 09/17/2015] [Accepted: 09/17/2015] [Indexed: 01/25/2023]
Abstract
Emerging data suggest that expansion of a circulating population of atypical, cytotoxic CD4(+) T cells lacking costimulatory CD28 (CD4(+) CD28(null) cells) is associated with latent cytomegalovirus (CMV) infection. The purpose of the current study was to increase the understanding of the relevance of these cells in 100 unselected kidney transplant recipients followed prospectively for a median of 54 months. Multicolor flow cytometry of peripheral blood mononuclear cells before transplantation and serially posttransplantation was undertaken. CD4(+) CD28(null) cells were found predominantly in CMV-seropositive patients and expanded in the posttransplantation period. These cells were predominantly effector-memory phenotype and expressed markers of endothelial homing (CX3CR1) and cytotoxicity (NKG2D and perforin). Isolated CD4(+) CD27(-) CD28(null) cells proliferated in response to peripheral blood mononuclear cells previously exposed to CMV-derived (but not HLA-derived) antigens and following such priming incubation with glomerular endothelium resulted in signs of endothelial damage and apoptosis (release of fractalkine and von Willebrand factor; increased caspase 3 expression). This effect was mitigated by NKG2D-blocking antibody. Increased CD4(+) CD28(null) cell frequencies were associated with delayed graft function and lower estimated glomerular filtration rate at end follow-up. This study suggests an important role for this atypical cytotoxic CD4(+) CD28(null) cell subset in kidney transplantation and points to strategies that may minimize the impact on clinical outcomes.
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Affiliation(s)
- S Shabir
- Department of Nephrology and Kidney Transplantation, Queen Elizabeth Hospital Birmingham, Birmingham, UK.,Centre for Translational Inflammation Research, University of Birmingham, Birmingham, UK
| | - H Smith
- Centre for Translational Inflammation Research, University of Birmingham, Birmingham, UK
| | - B Kaul
- Centre for Translational Inflammation Research, University of Birmingham, Birmingham, UK.,School of Cancer Sciences, University of Birmingham, Birmingham, UK
| | - A Pachnio
- School of Cancer Sciences, University of Birmingham, Birmingham, UK
| | - S Jham
- Department of Nephrology and Kidney Transplantation, Queen Elizabeth Hospital Birmingham, Birmingham, UK.,Centre for Translational Inflammation Research, University of Birmingham, Birmingham, UK
| | - S Kuravi
- Clinical and Experimental Medicine, University of Birmingham, Birmingham, UK
| | - S Ball
- Department of Nephrology and Kidney Transplantation, Queen Elizabeth Hospital Birmingham, Birmingham, UK.,Centre for Translational Inflammation Research, University of Birmingham, Birmingham, UK
| | - S Chand
- Department of Nephrology and Kidney Transplantation, Queen Elizabeth Hospital Birmingham, Birmingham, UK.,Centre for Translational Inflammation Research, University of Birmingham, Birmingham, UK
| | - P Moss
- School of Cancer Sciences, University of Birmingham, Birmingham, UK
| | - L Harper
- Centre for Translational Inflammation Research, University of Birmingham, Birmingham, UK
| | - R Borrows
- Department of Nephrology and Kidney Transplantation, Queen Elizabeth Hospital Birmingham, Birmingham, UK.,Centre for Translational Inflammation Research, University of Birmingham, Birmingham, UK
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Chand S, McKnight AJ, Shabir S, Chan W, McCaughan JA, Maxwell AP, Harper L, Borrows R. Analysis of single nucleotide polymorphisms implicate mTOR signalling in the development of new-onset diabetes after transplantation. BBA Clin 2016; 5:41-5. [PMID: 27051588 PMCID: PMC4802392 DOI: 10.1016/j.bbacli.2015.12.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Revised: 12/07/2015] [Accepted: 12/17/2015] [Indexed: 12/13/2022]
Abstract
Introduction Despite excellent first year outcomes in kidney transplantation, there remain significant long-term complications related to new-onset diabetes after transplantation (NODAT). The purpose of this study was to validate the findings of previous investigations of candidate gene variants in patients undergoing a protocolised, contemporary immunosuppression regimen, using detailed serial biochemical testing to identify NODAT development. Methods One hundred twelve live and deceased donor renal transplant recipients were prospectively followed-up for NODAT onset, biochemical testing at days 7, 90, and 365 after transplantation. Sixty-eight patients were included after exclusion for non-white ethnicity and pre-transplant diabetes. Literature review to identify candidate gene variants was undertaken as described previously. Results Over 25% of patients developed NODAT. In an adjusted model for age, sex, BMI, and BMI change over 12 months, five out of the studied 37 single nucleotide polymorphisms (SNPs) were significantly associated with NODAT: rs16936667:PRDM14 OR 10.57;95% CI 1.8–63.0;p = 0.01, rs1801282:PPARG OR 8.5; 95% CI 1.4–52.7; p = 0.02, rs8192678:PPARGC1A OR 0.26; 95% CI 0.08–0.91; p = 0.03, rs2144908:HNF4A OR 7.0; 95% CI 1.1–45.0;p = 0.04 and rs2340721:ATF6 OR 0.21; 95%CI 0.04–1.0; p = 0.05. Conclusion This study represents a replication study of candidate SNPs associated with developing NODAT and implicates mTOR as the central regulator via altered insulin sensitivity, pancreatic β cell, and mitochondrial survival and dysfunction as evidenced by the five SNPs. General significance Highlights the importance of careful biochemical phenotyping with oral glucose tolerance tests to diagnose NODAT in reducing time to diagnosis and missed cases. This alters potential genotype:phenotype association. The replication study generates the hypothesis that mTOR signalling pathway may be involved in NODAT development.
Oral glucose tolerance tests reduce time to NODAT diagnosis and missed cases Biochemical testing changes genotype:phenotype association mTOR signalling pathway may be involved in NODAT development
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Key Words
- ATF6, Activated transcription factor
- BMI, Body mass index
- GWAS, Genome-wide association study
- HLA, Human leucocyte antigen
- HNF4, Hepatocyte nuclear factor 4
- NODAT, New-onset diabetes after transplantation
- New-onset diabetes after transplantation
- PI3, Phospho-inositide 3-kinase
- PPARGC1α, Peroxisome proliferator-activated receptor gamma co-activator 1 alpha
- PPARy, Peroxisome proliferator-activated receptor gamma
- PRDM14, PR domain zinc protein 14
- SNP, Single nucleotide polymorphism
- mTOR
- mTOR, Mammalian target of rapamycin
- single nucleotide polymorphisms
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Affiliation(s)
- S Chand
- Department of Nephrology and Kidney Transplantation, Queen Elizabeth Hospital, Birmingham B15 2WB, United Kingdom; Centre for Translational Inflammation Research, University of Birmingham, Birmingham B15 2WB, United Kingdom
| | - A J McKnight
- Regional Nephrology Unit, Belfast City Hospital, Belfast BT9 7AB, Northern Ireland
| | - S Shabir
- Department of Nephrology and Kidney Transplantation, Queen Elizabeth Hospital, Birmingham B15 2WB, United Kingdom; Centre for Translational Inflammation Research, University of Birmingham, Birmingham B15 2WB, United Kingdom
| | - W Chan
- Department of Nephrology and Kidney Transplantation, Queen Elizabeth Hospital, Birmingham B15 2WB, United Kingdom
| | - J A McCaughan
- Regional Nephrology Unit, Belfast City Hospital, Belfast BT9 7AB, Northern Ireland
| | - A P Maxwell
- Regional Nephrology Unit, Belfast City Hospital, Belfast BT9 7AB, Northern Ireland
| | - L Harper
- Department of Nephrology and Kidney Transplantation, Queen Elizabeth Hospital, Birmingham B15 2WB, United Kingdom; Centre for Translational Inflammation Research, University of Birmingham, Birmingham B15 2WB, United Kingdom
| | - R Borrows
- Department of Nephrology and Kidney Transplantation, Queen Elizabeth Hospital, Birmingham B15 2WB, United Kingdom; Centre for Translational Inflammation Research, University of Birmingham, Birmingham B15 2WB, United Kingdom
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Srivastava A, Mishra S, Chand S. Synthesis of galacto-oligosaccharides from lactose using immobilized cells of Kluyveromyces marxianus NCIM 3551. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.molcatb.2015.11.017] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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Verma K, Prasad S, Mohanty T, Kumaresan A, Layek S, Patbandha T, Datta T, Chand S. Effect of short-term cooling on core body temperature, plasma cortisol and conception rate in Murrah buffalo heifers during hot-humid season. Journal of Applied Animal Research 2016. [DOI: 10.1080/09712119.2015.1031782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Shabir S, Girdlestone J, Briggs D, Kaul B, Smith H, Daga S, Chand S, Jham S, Navarrete C, Harper L, Ball S, Borrows R. Transitional B lymphocytes are associated with protection from kidney allograft rejection: a prospective study. Am J Transplant 2015; 15:1384-91. [PMID: 25808898 DOI: 10.1111/ajt.13122] [Citation(s) in RCA: 82] [Impact Index Per Article: 9.1] [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: 06/18/2014] [Revised: 10/27/2014] [Accepted: 10/28/2014] [Indexed: 01/25/2023]
Abstract
Recent cross-sectional studies suggest an important role for transitional B lymphocytes (CD19 + CD24hiCD38hi) in promoting transplant tolerance, and protecting from late antibody-mediated rejection (ABMR). However, prospective studies are lacking. This study enrolled 73 de novo transplant recipients, and collected serial clinical, immunological and biochemical information over 48 ± 6 months. Cell phenotyping was conducted immediately prior to transplantation, and then on five occasions during the first year posttransplantation. When modeled as a time-dependent covariate, transitional B cell frequencies (but not total B cells or "regulatory" T cells) were associated with protection from acute rejection (any Banff grade; HR: 0.60; 95% CI: 0.37-0.95; p = 0.03). No association between transitional B cell proportions and either de novo donor-specific or nondonor-specific antibody (dnDSA; dnNDSA) formation was evident, although preserved transitional B cell proportions were associated with reduced rejection rates in those patients developing dnDSA. Three episodes of ABMR occurred, all in the context of nonadherence, and all associated with in vitro anti-HLA T cell responses in an ELISPOT assay (p = 0.008 versus antibody-positive patients not experiencing ABMR). This prospective study supports the potential relevance of transitional ("regulatory") B cells as a biomarker and therapeutic intervention in transplantation, and highlights relationships between humoral immunity, cellular immunity and nonadherence.
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Affiliation(s)
- S Shabir
- Department of Nephrology and Kidney Transplantation, Queen Elizabeth Hospital Birmingham, UK; Centre for Translational Inflammation Research, University of Birmingham, UK
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Sinha L, Prasad O, Chand S, Sachan AK, Pathak SK, Shukla VK, Karabacak M, Asiri AM. FT-IR, FT-Raman and UV spectroscopic investigation, electronic properties, electric moments, and NBO analysis of anethole using quantum chemical calculations. Spectrochim Acta A Mol Biomol Spectrosc 2014; 133:165-77. [PMID: 24934975 DOI: 10.1016/j.saa.2014.05.034] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2014] [Revised: 05/16/2014] [Accepted: 05/19/2014] [Indexed: 05/07/2023]
Abstract
FT-IR and FT-Raman spectra of anethole (1-Methoxy-4-(1-propenyl)benzene), a flavoring agent of commercial value, have been recorded in the regions 4000-400 and 4000-100cm(-1) respectively. The structure of the title molecule has been optimized and the structural parameters have been calculated by DFT/B3LYP method with 6-311++G(d,p) basis set. The fundamental vibrational wavenumbers as well as their intensities were calculated and a good agreement between observed and scaled calculated wavenumbers has been achieved. UV-Vis spectrum of the title compound was recorded in the region 200-500nm and the electronic properties such as HOMO and LUMO energies and associated energy gap were calculated by Time dependent-density functional theory (TD-DFT) approach. Nonlinear optical (NLO) study divulges the nonlinear properties of the molecule. Stability of the title molecule arising from hyper-conjugative interactions and charge delocalization has been investigated using natural bond orbital (NBO) analysis. The theoretical results were found to be in coherence with the measured experimental data.
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Affiliation(s)
- L Sinha
- Department of Physics, University of Lucknow, Lucknow, India
| | - O Prasad
- Department of Physics, University of Lucknow, Lucknow, India
| | - S Chand
- Department of Physics, University of Lucknow, Lucknow, India
| | - A K Sachan
- Department of Physics, University of Lucknow, Lucknow, India
| | - S K Pathak
- Department of Physics, University of Lucknow, Lucknow, India
| | - V K Shukla
- Department of Physics, University of Lucknow, Lucknow, India
| | - M Karabacak
- Department of Mechatronics Engineering, H.F.T. Technology Faculty, Celal Bayar University, Turgutlu, Manisa, Turkey.
| | - A M Asiri
- Department of Chemistry, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia; Center of Excellence for Advanced Materials Research, King Abdulaziz University, Jeddah, Saudi Arabia
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Sinha S, Chand S, Tripathi P. Microbial degradation of chitin waste for production of chitosanase and food related bioactive compounds. ACTA ACUST UNITED AC 2014; 50:147-55. [PMID: 25272731 DOI: 10.7868/s0555109914020172] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Ecological samples rich in microbial diversity like cow dung, legume rhizosphere, fish waste and garden soil were used for isolation of chitosan-degrading microorganisms. Selected isolates were used for production of chitosanase and food related bioactive compounds by conversion of biowaste. Production of glucosamine (Gln), N-acetylglucosamine (NAG), chitooligosaccharides (COS), antioxidants, antibacterial compounds and prebiotics was carried out by microbial fermentation of biowaste. The highest chitosanase activity (8 U/mL) was observed in Aspergillus sp. isolated from fish market waste and it could produce Gln and NAG while Streptomyces sp. isolated from garden soil was able to produce COS along with Gln and NAG. Radical scavenging activity was observed in culture supernatants of 35% of studied isolates, and 20% isolates secreted compounds which showed positive effect on growth of Bifidobacterium. Antibacterial compounds were produced by 40% of selected isolates and culture supernatants of two microbial isolates, Streptomyces zaomyceticus C6 and one of garden soil isolates, were effective against both gram positive and negative bacteria.
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Verma KK, Prasad S, Kumaresan A, Mohanty TK, Layek SS, Patbandha TK, Chand S. Characterization of physico-chemical properties of cervical mucus in relation to parity and conception rate in Murrah buffaloes. Vet World 2014. [DOI: 10.14202/vetworld.2014.467-471] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Horgan P, Huhn L, Atkinson D, Chand S, Shabir S, Krishnan H, Robinson K, Williams A, Ball S, Neill D, Skordilis K, Vydianath B, Briggs D, McCloskey M, Borrows R. Interstitial Fibrosis and Tubular Atrophy (IFTA), Antibody Mediated Rejection (ABMR) and Recurrent Disease as the Major Causes of Late Renal Allograft Loss. Transplantation 2014. [DOI: 10.1097/00007890-201407151-01571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Arora L, Singh VN, Gupta P, Chhikara N, Jain K, Chand S. Band gap engineered P3HT/CdPbS composites for utilization of low energy photons. J Nanosci Nanotechnol 2014; 14:4995-5001. [PMID: 24757972 DOI: 10.1166/jnn.2014.8692] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
In the present study, CdPbS composite has been synthesized in the P3HT matrix in a single step. The synthesis has been carried out at a temperature of 120 degrees C by the decomposition of xanthate compound in the polymer matrix. This synthesis method helps in proper distribution of nanoparticles in the polymer matrix. The synthesized materials were characterized using UV-Vis spectroscopy, X-ray diffraction, transmission electron microcopy, photoluminescence (PL) and time resolved florescence spectroscopy. The P3HT/CdPbS nanoparticle composite can absorb photon in the range of 0.7 eV to 2.7 eV and a charge transfer between CdPbS and P3HT has been observed. It has been proposed that this composite may increase both the Voc as well as Jsc by better utilization of solar spectrum and increased charge transfer.
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Arora L, Singh VN, Gupta P, Chhikara N, Jain K, Chand S. Band gap engineering from Vis to NIR range in CdPbS nanoparticles synthesized by one-step low-temperature decomposition of xanthate compound. J Nanosci Nanotechnol 2014; 14:5324-5330. [PMID: 24758026 DOI: 10.1166/jnn.2014.8679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
In the present study, a generic method for the modification of optical band gap of CdS nanostructures material over a wide spectral range due to Pb doping and formation of Cd(1-x)Pb(x)S nanoparticles and its size confinement is reported. The composite investigated in this study was grown by thermal decomposition of metal xanthates and lead concentration was varied to obtain different lead doping. This is a direct decomposition one pot synthesis route that avoids use of toxic phosphine and injection of chemicals during the reaction. The prepared nanoparticles were characterized by XRD, SEM, EDX, and HRTEM. The optical absorption properties of the Cd(1-x)Pb(x)S nanostructures were investigated by UV-visible spectroscopy. Cd(1-x)Pb(x)S nanoparticles showed tuning of the band gap from 2.7 eV to 0.7 eV.
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50
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Chand S, Mustafa MD, Banerjee BD, Guleria K. CYP17A1 gene polymorphisms and environmental exposure to organochlorine pesticides contribute to the risk of small for gestational age. Eur J Obstet Gynecol Reprod Biol 2014; 180:100-5. [PMID: 25064838 DOI: 10.1016/j.ejogrb.2014.06.016] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [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: 08/03/2013] [Revised: 04/18/2014] [Accepted: 06/19/2014] [Indexed: 11/30/2022]
Abstract
OBJECTIVES The cytochrome P-450c17α enzyme encoded by the cytochrome P-450c17α (CYP17A1) gene plays a role in oestrogen synthesis. Genetic variation in the maternal CYP17A1 gene leads to differences in oestrogen level that affect fetal growth and cause small for gestational age (SGA). Organochlorine pesticides (OCPs) are endocrine disruptors that alter the normal oestrogen-progesterone balance, and are associated with adverse reproductive outcomes. This study was designed to investigate the effect of the gene-environment interaction between maternal CYP17A1 gene polymorphisms and maternal and cord OCP levels on the risk of SGA. STUDY DESIGN Maternal and cord blood samples of 50 term SGA cases (birth weight <10th percentile for gestational age as per Lubchenco's growth chart) and 50 normal pregnancies (controls) were collected. Women with occupational exposure to OCPs, anaemia, hypertension, antiphospholipid antibody syndrome, medical disease, parity of more than four, or a history of smoking, alcohol consumption or chronic drug intake were excluded from both groups. Maternal and cord blood samples were collected at the time of delivery or after delivery, respectively. The OCP levels of the samples were analyzed using a gas chromatography system equipped with an electron capture detector, and polymerase chain reaction-restriction fragment length polymorphism was used for polymorphic analysis of the CYP17A1 gene. RESULTS Significantly (p<0.05) higher levels of α-hexachlorocyclohexane (HCH), β-HCH and γ-HCH were found in maternal and cord blood samples of the SGA cases compared with the controls. The frequency of the A1A2/A2A2 genotype was significantly lower [p=0.041, odds ratio (OR) 0.421, 95% confidence interval (CI) 0.184-0.966] in the SGA cases compared with the controls. When gene-environment interactions between CYP17A1 gene polymorphisms and OCP levels were considered, a significant (p=0.004) association was found between a high level of endosulfan in cord blood and the A1A1 (wild-type) genotype of CYP17A1, leading to an estimated reduction in birth weight of 315g. CONCLUSIONS Higher OCP levels and the A1A1 genotype of CYP17A1 in pregnant women may be considered as important aetiological factors in idiopathic SGA. This study provides evidence that genetic variation and its interaction with environmental exposure may increase the risk of SGA. Further studies are needed with a larger sample size, incorporating other gene polymorphisms and environmental exposures, to strengthen these observations.
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Affiliation(s)
- S Chand
- Environmental Biochemistry and Molecular Biology Laboratory, Department of Biochemistry, University College of Medical Sciences and G.T.B. Hospital (University of Delhi), Delhi, India
| | - M D Mustafa
- Environmental Biochemistry and Molecular Biology Laboratory, Department of Biochemistry, University College of Medical Sciences and G.T.B. Hospital (University of Delhi), Delhi, India
| | - B D Banerjee
- Environmental Biochemistry and Molecular Biology Laboratory, Department of Biochemistry, University College of Medical Sciences and G.T.B. Hospital (University of Delhi), Delhi, India.
| | - K Guleria
- Department of Obstetrics and Gynaecology, University College of Medical Sciences and G.T.B. Hospital (University of Delhi), Delhi, India
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