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Kaur I, Batra V, Bogireddy NK, Baveja J, Kumar Y, Agarwal V. Chemical- and green-precursor-derived carbon dots for photocatalytic degradation of dyes. iScience 2024; 27:108920. [PMID: 38352227 PMCID: PMC10863327 DOI: 10.1016/j.isci.2024.108920] [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] [Indexed: 02/16/2024] Open
Abstract
Rapid industrialization and untreated industrial effluents loaded with toxic and carcinogenic contaminants, especially dyes that discharge into environmental waters, have led to a rise in water pollution, with a substantial adverse impact on marine life and humankind. Photocatalytic techniques are one of the most successful methods that help in degradation and/or removal of such contaminants. In recent years, semiconductor quantum dots are being substituted by carbon dots (CDs) as photocatalysts, due to the ease of formation, cost-effectiveness, possible sustainability and scalability, much lower toxicity, and above all its high capacity to harvest sunlight (UV, visible, and near infrared) through electron transfer that enhances the lifetime of the photogenerated charge carriers. A better understanding between the properties of the CDs and their role in photocatalytic degradation of dyes and contaminants is required for the formation of controllable structures and adjustable outcomes. The focus of this review is on CDs and its composites as photocatalysts obtained from different sustainable green as well as chemical precursors. Apart from the synthesis, characterization, and properties of the CDs, the study also highlights the effect of different parameters on the photocatalytic properties of CDs and their composites for catalytic dye degradation mechanisms in detail. Besides the present research development in the field, potential challenges and future perspectives are also presented.
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Affiliation(s)
- Inderbir Kaur
- Department of Electronic Science, Bhaskaracharya College of Applied Sciences, University of Delhi, Delhi, India
| | - Vandana Batra
- Department of Physics, Bhaskaracharya College of Applied Sciences, University of Delhi, Delhi, India
| | | | - Jasmina Baveja
- Invited Researcher at Center for Research in Engineering and Applied Sciences (CIICAp-IICBA), Autonomous State University of Morelos (UAEM), Av. Univ. 1001, Col. Chamilpa, Cuernavaca, Morelos 62209, Mexico
| | - Y. Kumar
- Departamento de Fisico Matematica, UANL, Monterrey, Mexico
| | - V. Agarwal
- Center for Research in Engineering and Applied Sciences (CIICAp-IICBA), Autonomous State University of Morelos (UAEM), Av. Univ. 1001, Col. Chamilpa, Cuernavaca, Morelos 62209, Mexico
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Kaur I, Batra V, Bogireddy NKR, Kumar Y, Agarwal V. Carbon Dots as a Novel Detection Material for Food Additives and Pesticides: A Mini Review. Microsc Microanal 2023; 29:4-8. [PMID: 37613377 DOI: 10.1093/micmic/ozad067.003] [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] [Subscribe] [Scholar Register] [Indexed: 08/25/2023]
Affiliation(s)
- Inderbir Kaur
- Department of Electronic Science, Bhaskaracharya College of Applied Sciences, University of Delhi, Delhi, India
| | - Vandana Batra
- Department of Physics, Bhaskaracharya College of Applied Sciences, University of Delhi, Delhi, India
| | - Naveen Kumar Reddy Bogireddy
- Centro de Investigaciones en Ingenieria y Ciencias Aplicadas, Universidad Autonoma del Estado de Morelos, Col. Chamilpa, Cuernavaca, Morelos, Ḿexico
| | - Yogesh Kumar
- Departamento de Fisico Matematica, Universidad Autonoma de Nueva Leon, Cd. Universitaria, San Nicolás de Los Garza, N.L., Mexico
| | - Vivechana Agarwal
- Centro de Investigaciones en Ingenieria y Ciencias Aplicadas, Universidad Autonoma del Estado de Morelos, Col. Chamilpa, Cuernavaca, Morelos, Ḿexico
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Kaur I, Batra V, Kumar Reddy Bogireddy N, Torres Landa SD, Agarwal V. Detection of organic pollutants, food additives and antibiotics using sustainable carbon dots. Food Chem 2023; 406:135029. [PMID: 36463597 DOI: 10.1016/j.foodchem.2022.135029] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 11/06/2022] [Accepted: 11/20/2022] [Indexed: 11/24/2022]
Abstract
The ecosystem across the globe has been adversely affected due to the adoption of unsustainable growth strategies. Overuse of organic pollutants such as dyes, pesticides, disinfectants, food additives and antibiotics, along with their release into the environment without proper treatment has severely affected the food chain and water bodies, hence ultimately the human race. As the organic contaminants, being non-biodegradable, persist in the environment for a long duration, a sustainable method for the detection of these harmful organic pollutants is essential. For food safety and restoration of ecological balance, simple, non-toxic, cost-effective and environmentally friendly green precursor derived carbon dots (CDs) are favorable as compared to inorganic nanoparticles (CdTe, CdS etc.) and chemically derived CDs. This review covers the summary of the studies devoted to the optical detection of organic pollutants, food additives and antibiotics through green precursor derived CDs, reported during the last few years. The upcoming studies of optical sensing systems with sustainable CDs provide powerful insight towards pollutant detection, as well as act as a future monitoring tool.
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Affiliation(s)
- Inderbir Kaur
- Department of Electronics, Bhaskaracharya College of Applied Sciences, University of Delhi, Delhi 110075, India
| | - Vandana Batra
- Department of Physics, Bhaskaracharya College of Applied Sciences, University of Delhi, Delhi 110075, India
| | | | - Simei Darinel Torres Landa
- Center for Research in Engineering and Applied Sciences (CIICAp-IICBA), Autonomous State University of Morelos (UAEM), Av. Univ. 1001, Col. Chamilpa, Cuernavaca, Morelos 62209, México
| | - Vivechana Agarwal
- Center for Research in Engineering and Applied Sciences (CIICAp-IICBA), Autonomous State University of Morelos (UAEM), Av. Univ. 1001, Col. Chamilpa, Cuernavaca, Morelos 62209, México.
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Abstract
The discovery of carbon dots (CDs) for environmental remediation has gained awareness because of the diverse economically viable and environmental friendly green precursors generated from biowastes and biomass compared to the toxic inorganic quantum dots and CDs prepared from chemical precursors. This review presents the recent progress in green CDs, including their synthesis methods and sensing applications for the detection of heavy metal ions such as Iron (III), Mercury (II), Copper (II), Chromium (VI), Lead (II), Arsenic (III), Cobalt (II), Aluminum (III), Silver (I), and Gold (III) which are prominent environmental pollutants. The comparison based on selectivity, sensitivity, quantum yield, detection limit, linear concentration range, and sensing mechanisms are also reported. This review also covers the performance of doped green CDs using heteroatoms, toward the detection of heavy metal ions. Apart from the future perspectives, this review provides a general guide to use such environmental friendly CDs to detect harmful pollutants.
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Affiliation(s)
- Simei Darinel Torres Landa
- Center for Research Engineering and Applied Sciences, Autonomous State University of Morelos (CIICAp-UAEM), Av. Univ. 1001, Col. Chamilpa, Cuernavaca, Morelos 62209, Mexico
| | - Naveen Kumar Reddy Bogireddy
- Center for Research Engineering and Applied Sciences, Autonomous State University of Morelos (CIICAp-UAEM), Av. Univ. 1001, Col. Chamilpa, Cuernavaca, Morelos 62209, Mexico.,Physics Institute, National Autonomous University of Mexico (IF-UNAM), Distrito Federal C.P. 04510, México
| | - Inderbir Kaur
- Department of Electronics, Bhaskaracharya College of Applied Sciences, University of Delhi, Delhi 110075, India
| | - Vandana Batra
- Department of Physics, Bhaskaracharya College of Applied Sciences, University of Delhi, Delhi 110075, India
| | - Vivechana Agarwal
- Center for Research Engineering and Applied Sciences, Autonomous State University of Morelos (CIICAp-UAEM), Av. Univ. 1001, Col. Chamilpa, Cuernavaca, Morelos 62209, Mexico
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Jakhar D, Bhatia V, Gupta R, Kaur I. Dermoscopy as an Auxiliary Tool in the Assessment of Malassezia Folliculitis: An Observational Study. Actas Dermo-Sifiliográficas 2022; 113:78-81. [DOI: 10.1016/j.ad.2020.05.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Accepted: 05/14/2020] [Indexed: 10/19/2022] Open
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Whelan A, Doyle P, Ryan C, Kaur I, Mulroy M. 125 WARD-BASED MEDICAL TEAMS: IMPACT ON THE CARE OF THE OLDER PERSON WARD. Age Ageing 2021. [PMCID: PMC8690061 DOI: 10.1093/ageing/afab219.125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Background The COVID-19 pandemic forced healthcare management to make structural adaptations in the interest of infection control. One such adaptation is the introduction of ward-based medical teams. The multidisciplinary team (MDT) is one of the cornerstones of geriatric medicine. Therefore, we aimed to explore the perception of the care of the older person MDT on the introduction of ward-based medical teams. Methods Qualitative data was collected on a geriatric ward in October 2020 via written questionnaire. The questionnaire analysed how the transition to ward based medical teams was perceived in terms of inter-professional collaboration and clinical service delivered to patients. Results There were 14 respondents, 10 of whom were nursing staff (71%). 86% strongly agreed that the medical team was more accessible, with most interactions occurring face-to-face. Patient care and safety was thought to have improved, 79% and 71% of respondents respectively. 93% felt they had a better rapport with the medical team. 71% felt the MDT meeting is more effective, 57% believed the meeting had greater impact on patient care. However, 93% felt there was less workspace. 21% believed there were more daily admissions and 57% felt the majority of patient transfers from other wards were inappropriate. Overall 86% favoured ward-based medical teams, with 57% of staff reporting that the change led to increased personal job satisfaction. Conclusion By increasing the geographic proximity of doctors to other professionals, doctors were more accessible, issues were tackled quicker, and there was less time wasted bleeping medical teams. Overall staff favoured a ward-based system. However, there are challenges implementing this system. Particular attention should be paid to the availability of adequate workspace, including telephones and computers. Ward transfers should be minimized as continuity of care can be compromised. Strategies should be implemented so medical charts are available to the MDT during consultant-led ward rounds.
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Affiliation(s)
- A Whelan
- Our Lady of Lourdes Hospital, Drogheda, Ireland
| | - P Doyle
- Our Lady of Lourdes Hospital, Drogheda, Ireland
| | - C Ryan
- Our Lady of Lourdes Hospital, Drogheda, Ireland
| | - I Kaur
- Our Lady of Lourdes Hospital, Drogheda, Ireland
| | - M Mulroy
- Our Lady of Lourdes Hospital, Drogheda, Ireland
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Jakhar D, Bhatia V, Gupta R, Kaur I. Dermoscopy as an Auxiliary Tool in the Assessment of Malassezia Folliculitis: An Observational Study. Actas Dermo-Sifiliográficas (English Edition) 2021. [DOI: 10.1016/j.adengl.2021.11.015] [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: 11/26/2022] Open
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Mughal M, Kaur I, Waxman S, Gandhi H, Kakadia M, Khakwani Z, Okoh A, Shah K, Obaid A, Sirpal V, Azad S, Jaffery A, Jagdey H, Tawfik I, Alam M. Clinical outcomes in COVID-19 patients with in-hospital cardiac arrest – an insight from multi-centre data. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.1546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
In general, rates of in-hospital cardiac arrest are reportedly 9 to 10 arrests per 1000 admissions, with survival rates of approximately 20–25%. Data regarding clinical characteristics and outcomes in patients with COVID-19 who received in-hospital CPR (cardiopulmonary resuscitation) are limited. This information can help guide end-of-life care conversations between families and health care workers based on real-world experience.
Purpose
To observe the outcomes (survival to discharged alive from the hospital) in critically sick COVID-19 patients who experienced in-hospital cardiac arrest.
Methods
This is a multi-centre institutional review board (IRB) approved retrospective study. The RT-PCR confirmed adult COVID-19 patients consecutively admitted from March 1st to April 30, 2020, were included. Data were extracted manually using the hospital's electronic medical record. The final date of follow-up to monitor clinical outcomes was January 2021.
Results
A total of 721 patients were admitted to the hospital. Of these, only 64 (8.87%) patients had “no CPR” orders.Cardiac arrest occurred in 141 (19.5%) patients. The mean duration of beginning of resuscitation was less than a minute and the mean duration of CPR was 19 minutes. The median age was 65 years; 62.4% were male. The most common co-morbidities were hypertension (66%) and diabetes mellitus (56%). The initial rhythm was non-shockable in 93.7% of patients [asystole in 48.4% and Pulseless Electrical Activity (PEA) in 45.3% of patients]. Only six (4.2%) patients had pulseless ventricular tachycardia and three (2.1%) patients had ventricular fibrillation. A total of eight patients (5.6%) survived and were discharged from the hospital; six (4.25%) had non-shockable and two (0.82%) had shockable initial rhythms. The median age of those who survived was 60 years (Figure 1).
Conclusions
Our study showed that critically sick patients with COVID-19 have a high rate of cardiac arrest and poor outcomes in those who received CPR. A non-shockable initial rhythm indicates that non-cardiac reasons might be playing a major role. These include acute respiratory insufficiency, severe sepsis, or multiorgan failure. These data should inform end-of-life care discussions between providers and patients' families.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- M Mughal
- Monmouth Medical Center, Long Branch, United States of America
| | - I Kaur
- Monmouth Medical Center, Long Branch, United States of America
| | - S Waxman
- Newark Beth Israel Medical Center, The Department of Medicine, Section of Cardiology, Newark, United States of America
| | - H Gandhi
- Monmouth Medical Center, Long Branch, United States of America
| | - M Kakadia
- Monmouth Medical Center, Long Branch, United States of America
| | - Z Khakwani
- Newark Beth Israel Medical Center, The Department of Medicine, Section of Cardiology, Newark, United States of America
| | - A Okoh
- Newark Beth Israel Medical Center, The Department of Medicine, Section of Cardiology, Newark, United States of America
| | - K Shah
- St. Luke's University Hospital, Bethlehem, United States of America
| | - A Obaid
- Monmouth Medical Center, Long Branch, United States of America
| | - V Sirpal
- Monmouth Medical Center, Long Branch, United States of America
| | - S Azad
- Monmouth Medical Center, Long Branch, United States of America
| | - A Jaffery
- Monmouth Medical Center, Long Branch, United States of America
| | - H Jagdey
- Bronx-Lebanon Hospital Center, Bronx NY, United States of America
| | - I Tawfik
- Monmouth Medical Center, Long Branch, United States of America
| | - M Alam
- Baylor College of Medicine, The Department of Medicine, Section of Cardiology, Houston, United States of America
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Jakhar D, Das A, Kaul S, Kaur I, Madke B, Dalal A. Prevalence and characteristics of dermatological manifestations in COVID-19 positive dermatologists: Report from a web-based survey in India. J Eur Acad Dermatol Venereol 2021; 35:e832-e833. [PMID: 34297886 PMCID: PMC8447020 DOI: 10.1111/jdv.17532] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 06/07/2021] [Accepted: 07/06/2021] [Indexed: 01/08/2023]
Affiliation(s)
- D Jakhar
- Dermosphere clinic, New Delhi, India
| | - A Das
- Department of Dermatology, KPC Medical College & Hospital, Kolkata, India
| | - S Kaul
- Department of Internal Medicine, John H Stroger Hospital of Cook county, Chicago, USA
| | - I Kaur
- Department of Dermatology, North Delhi Municipal Corporation Medical College & Hindu Rao Hospital, New Delhi, India
| | - B Madke
- Department of Dermatology, Venereology and Leprology, Jawaharlal Nehru Medical College, Datta Meghe Institute of Medical Sciences, Sawangi Meghe, Wardha, Maharashtra, India
| | - A Dalal
- Department of Dermatology, Saheed Hasan Khan Mewati Government Medical College and Hospital, Nuh, India
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Jakhar D, Kaul S, Kaur I, Kumar S. Wifi-enabled dermoscopy: what is the potential in clinical practice and education? Clin Exp Dermatol 2021; 46:1317-1319. [PMID: 33872396 DOI: 10.1111/ced.14692] [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] [Accepted: 04/15/2021] [Indexed: 11/28/2022]
Affiliation(s)
- D Jakhar
- Department of Dermatology and STD, North Delhi Municipal Corporation Medical College and Hindu Rao Hospital, New Delhi, India
| | - S Kaul
- Department of internal Medicine, John H Stroger Hospital of Cook County, Chicago, IL, USA
| | - I Kaur
- Department of Dermatology and STD, North Delhi Municipal Corporation Medical College and Hindu Rao Hospital, New Delhi, India
| | - S Kumar
- Department of Dermatology and STD, North Delhi Municipal Corporation Medical College and Hindu Rao Hospital, New Delhi, India
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Learmonth YC, Kaur I, Baynton SL, Fairchild T, Paul L, van Rens F. Changing Behaviour towards Aerobic and Strength Exercise (BASE): Design of a randomised, phase I study determining the safety, feasibility and consumer-evaluation of a remotely-delivered exercise programme in persons with multiple sclerosis. Contemp Clin Trials 2021; 102:106281. [PMID: 33444780 DOI: 10.1016/j.cct.2021.106281] [Citation(s) in RCA: 3] [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: 10/23/2020] [Revised: 01/07/2021] [Accepted: 01/07/2021] [Indexed: 11/26/2022]
Abstract
BACKGROUND Multiple sclerosis is a chronic progressive neurological disease. Evidence attests to the benefits of exercise, guidelines for exercise in multiple sclerosis are available. Remote-delivery of exercise adherence programmes based on the exercise guidelines require urgent testing. AIMS The design, and outcomes of Behaviour towards Aerobic and Strength Exercise in MS (BASE-MS), a remotely-delivered exercise training study based principles of behaviour change, will further evaluate the remote-delivery of the current exercise guidelines. METHODS BASE is a 4-month clinically relevant randomised controlled trial to explore the delivery of a remotely supervised, guidelines-based exercise programme for persons with multiple sclerosis, underpinned by principles of health behaviour change. Initially, 72 persons with mild to moderate multiple sclerosis will be randomised in a 1:1:1 allocation to receive the BASE programme, or act as controls continuing usual care. On programme completion, exercise participants will be further randomised to an optimised adherence treatment or usual adherence. Our online survey assesses the primary outcome of exercise participation, and secondary outcomes of symptoms, and correlates of behaviour change at baseline, month four, month five and month eleven. Online surveys will capture coach and participant feedback to identify the contexts, mechanisms and outcomes of BASE implementation. CONCLUSIONS The research and clinical landscape for MS management must remain in-step with public health and health communication. BASE tests the remote-delivery of the current exercise guidelines for exercise in persons with MS. Safety, feasibility and evaluative outcomes will provide rich data for future remote-delivery of exercise in neurological conditions.
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Affiliation(s)
- Y C Learmonth
- Discipline of Exercise Science, Murdoch University, Murdoch, WA, Australia; Perron Institute for Neurological and Translational Science, Perth, WA, Australia; Centre for Molecular Medicine and Innovative Therapeutics, Murdoch University, Murdoch, WA, Australia.
| | - I Kaur
- Discipline of Exercise Science, Murdoch University, Murdoch, WA, Australia
| | - S L Baynton
- Discipline of Exercise Science, Murdoch University, Murdoch, WA, Australia
| | - T Fairchild
- Discipline of Exercise Science, Murdoch University, Murdoch, WA, Australia; Centre for Molecular Medicine and Innovative Therapeutics, Murdoch University, Murdoch, WA, Australia
| | - L Paul
- School of Health and Life Sciences, Glasgow Caledonian University, Glasgow, UK
| | - F van Rens
- Discipline of Exercise Science, Murdoch University, Murdoch, WA, Australia
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Kaur I, Chawla N, Dhatt A, Kaur M. Evaluation of Physico-Chemical Composition in Bulbs of Red, Yellow, and White Onion (Allium Cepa L.) Genotypes of Sub-Tropical India. AAlim 2020. [DOI: 10.1556/066.2020.49.4.14] [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: 11/19/2022]
Abstract
In this study, thirty onion (Allium cepa L.) genotypes grown in sub-tropical region of India were analysed for different physico-chemical attributes. There were significant differences among genotypes, and the onion genotypes showed a tendency to be classified according to different colours. The cultivars of the same colour exhibited similar tendencies in terms of accumulating most of the analysed components. About 1.78 fold variation in dry matter (%) and 2 fold variation in fresh weight per bulb were recorded among coloured onions. Red genotype D-888-B possessed maximum contents of TS and NRS, while the yellow coloured genotype POH-5 accumulated highest RS and lowest NRS contents. Maximum values of fructans (3.68 g/100 g DW), AIS (6 g/100 g DW), protein (10.61 g/100 g DW), and FAA (4.24 g/100 g DW) were also found in red coloured genotypes D-715-B, D-97-B, PR-305, and D-PS-121-B, respectively. Proline content in different genotypes was found to vary about 6.9 fold. The correlation studies showed a positive relationship between most of the quality parameters. Our results suggested that red group genotypes were better than yellow and white groups for all the studied parameters except for RS, which makes red genotypes more suitable for processing purposes.
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Affiliation(s)
- I. Kaur
- Punjab Agricultural University, Ludhiana, 141001-India
| | - N. Chawla
- Punjab Agricultural University, Ludhiana, 141001-India
| | - A.S. Dhatt
- Punjab Agricultural University, Ludhiana, 141001-India
| | - M. Kaur
- Punjab Agricultural University, Ludhiana, 141001-India
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Mitra S, Barik S, Suryavanshi M, Dewan A, Aggarwal S, Kaur I, Kumar D, Khurana H, Vishwakarna G, Dobriyal K, Sharief MI, Umesh P, Jwala M, Mishra M. To Study The Role Of Pre-treatment MicroRNA Expression As A Predictor Of Response To Chemoradiation In Locally Advanced Carcinoma Cervix. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.1617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Goel R, Kaur I, Mahajan K, Chatterjee M. PMU8 The Increasing Burden of NON-Communicable Diseases in India. Value Health Reg Issues 2020. [DOI: 10.1016/j.vhri.2020.07.366] [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: 11/26/2022]
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15
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Jakhar D, Kaur I, Kaul S. Screen mirroring, screen casting and screen sharing during COVID-19: what dermatologists should know. Clin Exp Dermatol 2020; 45:750-751. [PMID: 32304574 PMCID: PMC7264592 DOI: 10.1111/ced.14247] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Accepted: 04/15/2020] [Indexed: 12/02/2022]
Affiliation(s)
- D Jakhar
- Department of Dermatology, North Delhi Municipal Corporation Medical College and Hindu Rao Hospital, New Delhi, India
| | - I Kaur
- Department of Dermatology, North Delhi Municipal Corporation Medical College and Hindu Rao Hospital, New Delhi, India
| | - S Kaul
- Department of Internal Medicine, John H. Stroger Hospital of Cook County, Chicago, IL, USA
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16
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Kaur I, Jakhar D. Intraoperative onychoscopy and histopathological correlation of red lunula in nail lichen planus: a case series. Clin Exp Dermatol 2020; 45:884-887. [PMID: 32358798 DOI: 10.1111/ced.14265] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/27/2020] [Indexed: 11/28/2022]
Abstract
The lunula is the white half-moon-shaped area located at the base of the fingernails and toenails, and is the only visible part of nail matrix. Red lunula can present as a complete form (the whole lunula is red), incomplete form (only the proximal lunula is red) or mottled form. Red lunula has been associated with a number of dermatological and systemic conditions. It is one of the less common manifestations of nail lichen planus (LP). However, the pathogenesis of the red lunula is not yet clear. We present a series of six patients with nail LP presenting with red lunula, and describe the findings of intraoperative onychoscopy and histopathology in an attempt to understand the pathogenesis underlying the condition.
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Affiliation(s)
- I Kaur
- Department of Dermatology, Venereology and Leprosy, North Delhi Municipal Corporation Medical College and Hindu Rao Hospital, New Delhi, India
| | - D Jakhar
- Department of Dermatology, Venereology and Leprosy, North Delhi Municipal Corporation Medical College and Hindu Rao Hospital, New Delhi, India
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Jakhar D, Kaul S, Kaur I. WhatsApp messenger as a teledermatology tool during coronavirus disease (COVID‐19): from bedside to phone‐side. Clin Exp Dermatol 2020; 45:739-740. [PMID: 32243612 PMCID: PMC9213937 DOI: 10.1111/ced.14227] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/24/2020] [Indexed: 11/27/2022]
Affiliation(s)
- D. Jakhar
- Department of Dermatology North Delhi Municipal Corporation Medical College & Hindu Rao Hospital New Delhi India
| | - S. Kaul
- Department of Internal Medicine John H. Stroger Hospital of Cook County Chicago IL USA
| | - I. Kaur
- Department of Dermatology North Delhi Municipal Corporation Medical College & Hindu Rao Hospital New Delhi India
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Jakhar D, Kaur I, Kaul S. Art of performing dermoscopy during the times of coronavirus disease (COVID-19): simple change in approach can save the day! J Eur Acad Dermatol Venereol 2020; 34:e242-e244. [PMID: 32223004 DOI: 10.1111/jdv.16412] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- D Jakhar
- Department of Dermatology, North Delhi Municipal Corporation Medical College & Hindu Rao Hospital, New Delhi, India
| | - I Kaur
- Department of Dermatology, North Delhi Municipal Corporation Medical College & Hindu Rao Hospital, New Delhi, India
| | - S Kaul
- Department of internal Medicine, John H Stroger Hospital of Cook County, Chicago, IL, USA
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Dewan A, Mitra S, Varghese A, Aggarwal S, Kaur I, Khurana R, Raman K, Tamilarasu S, Bhushan M, Dutta S, Barik S, Sundari A, Dobriyal K. PO-158: Dosimetric comparison of 3D and 2D vaginal brachy in post-op patients with endometrial/cervical ca. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(20)30500-4] [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: 11/28/2022]
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Mitra S, Khurana R, Dewan A, Kaur I, Aggarwal S, Barik S, Dutta S, Varghese A, Mishra M. Clinical Outcomes and Patterns of Failure after D2 Gastrectomy and Adjuvant Chemoradiotherapy in Patients with Locally Advanced Carcinoma Stomach: A Retrospective Review From A Tertiary Care Cancer Research Institute. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.2045] [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: 12/01/2022]
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Abstract
Raoultella ornithinolytica is an encapsulated gram-negative aerobic bacillus belonging to the Enterobacteriaceae family. It is one of the three species of Raoultella. Human infections related to R. ornithinolytica are exceedingly rare. This case report describes an ENT infection caused by R. ornithinolytica successfully treated with antibiotic therapy.
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Affiliation(s)
- M Singh
- Department of ENT, Government Medical College and Rajindra Hospital, Patiala, Punjab, India
| | - I Kaur
- Department of ENT, Government Medical College and Rajindra Hospital, Patiala, Punjab, India
| | - D K Mundi
- Department of ENT, Government Medical College and Rajindra Hospital, Patiala, Punjab, India
| | - A Kaur
- Department of General Surgery, Government Medical College and Rajindra Hospital, Patiala, Punjab, India
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Jakhar D, Kaur I. Artificial intelligence, machine learning and deep learning: definitions and differences. Clin Exp Dermatol 2019; 45:131-132. [DOI: 10.1111/ced.14029] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/21/2019] [Indexed: 12/15/2022]
Affiliation(s)
- D. Jakhar
- Department of Dermatology and STD NDMC Medical College & Hindu Rao Hospital New Delhi 110007 India
| | - I. Kaur
- Kaya Skin Clinic New Delhi India
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Abstract
Hamartomatous polyps of the tonsil are rare. They have been described using various terms such as a lymphangiomatous polyp, lymphangiectatic fibrous polyp, lipomatous polyp, or pedunculated tonsil; hence, the actual incidence is difficult to be quantified. Polyp of the palatine tonsils is an unusual benign lesion of the head and neck. It is a rare polypoidal mass that generally arises from a pedicle attached to the tonsil and projecting into the oropharynx. Polypoid lesions of the head and neck are likewise rare, and such tumors arising from the palatine tonsils are sparse. Tonsillar polyp is an uncommon hamartomatous lesion that generally arises from the tonsillar surface. It has rarely been reported in the medical literature. We present a case of hamartomatous polyp of the palatine tonsil in a 17-year-old male patient.
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Affiliation(s)
- M Singh
- Department of ENT, Government Medical College and Rajindra Hospital, Patiala, Punjab, India
| | - D K Mundi
- Department of ENT, Government Medical College and Rajindra Hospital, Patiala, Punjab, India
| | - I Kaur
- Department of ENT, Government Medical College and Rajindra Hospital, Patiala, Punjab, India
| | - A Kaur
- Department of General Surgery, Government Medical College and Rajindra Hospital, Patiala, Punjab, India
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Jakhar D, Kaur I. Predatory conferences: a flimflam academic deception. Clin Exp Dermatol 2019; 44:948-949. [PMID: 31162846 DOI: 10.1111/ced.14020] [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] [Accepted: 05/30/2019] [Indexed: 11/28/2022]
Affiliation(s)
- D Jakhar
- Department of Dermatology and STD, North Delhi Municipal Corporation Medical College and Hindu Rao Hospital, New Delhi, India
| | - I Kaur
- Kaya Skin Clinic, New Delhi, India
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Affiliation(s)
- I Kaur
- Department of Dermatology and STD, University College of Medical Sciences and GTB Hospital (University of Delhi), New Delhi, India
| | - D Jakhar
- Department of Dermatology and STD, University College of Medical Sciences and GTB Hospital (University of Delhi), New Delhi, India
| | - S N Bhattacharya
- Department of Dermatology and STD, University College of Medical Sciences and GTB Hospital (University of Delhi), New Delhi, India
| | - S Sharma
- Department of Pathology, University College of Medical Sciences and GTB Hospital (University of Delhi), New Delhi, India
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Kaur J, Singh M, Kaur I, Singh A, Goyal S. A comparative study of gloved versus ungloved merocel ® as nasal pack after septoplasty. Niger J Clin Pract 2018; 21:1391-1395. [PMID: 30417834 DOI: 10.4103/njcp.njcp_414_17] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Introduction Septoplasty or septal reconstruction is a corrective surgical procedure performed to straighten the nasal septum. It may be associated with numerous complications. To minimize these complications, both nasal cavities are frequently packed with different types of nasal packing. Materials and Methods This prospective, observational, and comparative study was undertaken in the Department of ENT, Rajindra Hospital, Patiala, Punjab, India. A total of sixty patients fulfilling the inclusion criteria participated in the study. They were divided into two groups, Groups A and B. After septoplasty, the nasal cavity was packed with gloved Merocel® in Group A and ungloved Merocel® in control group (Group B). The efficacy and patient tolerance for both nasal packings were compared and assessed. The data collected were compiled and analyzed statistically. Results In our study, it was demonstrated that gloved Merocel® produces less pain during pack insertion (P = 0.001) and produces less pain while insertion of pack in situ (P = 0.001) and during pack removal (P = 0.001). Saccharin transit time (STT) returned back to normal in gloved Merocel® group (P = 0.001) in most of patients (27) by the 2nd week, whereas STT in ungloved Merocel® group returned back to normal by the 4th week postoperatively. The differences in impairment in STT between the two groups were found to be statistically significant. There was no statistical significance between both groups for other parameters. Conclusion Gloved Merocel® may be preferred over ungloved Merocel® as nasal packing following septoplasty since both types of packs had similar hemostatic, adhesion prevention properties and similar incidence in postoperative complications and gloved Merocel® produces less pain during its insertion, while it is in situ, during its removal with early recovery of nasal mucociliary clearance mechanism of nose.
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Affiliation(s)
- J Kaur
- Department of ENT, GMC, Patiala, Punjab, India
| | - M Singh
- Department of ENT, GMC, Patiala, Punjab, India
| | - I Kaur
- Department of ENT, GMC, Patiala, Punjab, India
| | - A Singh
- Depatrment of ENT, GMCH, Chandigarh, India
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Singla G, Singh M, Singh A, Kaur I, Harsh K, Jasmeen K. Is sino-nasal outcome test-22 reliable for guiding chronic rhinosinusitis patients for endoscopic sinus surgery? Niger J Clin Pract 2018; 21:1228-1233. [PMID: 30156212 DOI: 10.4103/njcp.njcp_429_17] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Chronic rhino-sinusitis (CRS) is a significant health problem whose incidence and prevalence is rising. An emphasis has been placed on diseasespecific quality of life (QoL as the predominant measure for most current outcome studies. Therefore a validated measure of health-related QoL in sinonasal disease is needed. The present prospective and observational study was conducted on 50 patients in the Department of ENT at Govt. Medical College and Rajindra Hospital Patiala, Punjab, India. The primary outcomes were the following: (1) the chance of attaining minimal clinically important difference (MCID) improvements of nine points at the 22-item Sino-Nasal Outcome Test (SNOT-22) after endoscopic sinus surgery (ESS) for different preoperative QoL levels, and (2) the percentage of relative improvement in SNOT-22 after ESS for different preoperative QoL levels. Methods Patients with CRS who were elected for ESS were prospectively enrolled into an observational cohort study. They were categorized into 10 preoperative SNOT-22 groups based on 10-point increments beginning with a score of 10 and ending at 110. Standard protocol for all patients presenting for evaluation included completion of the SNOT-22 prior to and following surgical intervention. The scores were calculated and the data collected were compiled and analyzed. Results A total of 50 patients were included in this study. Patients with a SNOT-22 score between 10 and 19 had the lowest chance of achieving an MCID. Patients with a SNOT-22 score greater than 30 had a greater than 90% chance of achieving an MCID, and there was a relative improvement of 43.3% on their preoperative SNOT-22 scores. CRS patients with polyp had better outcomes (47.1% improvement) after ESS than those without polyp (33.2% improvement). Conclusion There is an increased probability of achieving an MCID at SNOT-22 score >30 and in general the percentage of relative improvement increased with an increase in preoperative SNOT score.
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Affiliation(s)
- G Singla
- Department of ENT and Head and Neck Surgery, Government Medical College and Rajindra Hospital, Patiala, Punjab, India
| | - M Singh
- Department of ENT and Head and Neck Surgery, Government Medical College and Rajindra Hospital, Patiala, Punjab, India
| | - A Singh
- Department of ENT and Head and Neck Surgery, Government Medical College and Rajindra Hospital, Patiala, Punjab, India
| | - I Kaur
- Department of ENT and Head and Neck Surgery, Government Medical College and Rajindra Hospital, Patiala, Punjab, India
| | - K Harsh
- Department of ENT and Head and Neck Surgery, Government Medical College and Rajindra Hospital, Patiala, Punjab, India
| | - K Jasmeen
- Department of ENT and Head and Neck Surgery, Government Medical College and Rajindra Hospital, Patiala, Punjab, India
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Rai S, Tandon M, Singh N, Kaur I. Development, optimization, standardization and validation of a simple in-house agar gradient method to determine vancomycin MIC's for Staphylococcus aureus. Int J Infect Dis 2016. [DOI: 10.1016/j.ijid.2016.02.285] [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: 11/26/2022] Open
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Reddy AK, Balne PK, Reddy RK, Mathai A, Kaur I. Loop-mediated isothermal amplification assay for the diagnosis of retinitis caused by herpes simplex virus-1. Clin Microbiol Infect 2011; 17:210-3. [PMID: 20298270 PMCID: PMC7128213 DOI: 10.1111/j.1469-0691.2010.03216.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A loop-mediated isothermal amplification (LAMP) assay was developed for the detection of herpes simplex virus 1 (HSV-1). The specificity of the assay was tested using DNA extracted from HSV-1-infected rabbit corneal epithelium cultures, HSV-2 grown on Vero cell line, cytomegalovirus (CMV) (AD-169), varicella zoster virus (VZV) (Oka-vaccine), adenovirus, Aspergillus flavus and Staphylococcus aureus. The specificity of LAMP was confirmed by bidirectional sequencing of the amplicons. The sensitivity of the LAMP assay was tested using different concentrations of HSV-1 DNA. To evaluate the application of the LAMP assay in clinical diagnosis, we tested vitreous samples from 20 patients with suspected viral retinitis using LAMP and real-time PCR for HSV-1. The LAMP primers amplified only HSV-1 DNA; no LAMP products were detected with the DNAs of HSV-2, CMV, VZV, adenovirus A. flavus and S. aureus. The sequences of the positive HSV-1 LAMP products perfectly (99–100%) matched the HSV-1 sequences deposited in the GenBank database. LAMP is as sensitive as real-time PCR, with the lowest detection limit being 10 copies/μL of HSV-1 DNA. Of the 20 patients with suspected viral retinitis, four tested positive for HSV-1 using real- time PCR and LAMP. A 100% concordance was observed across the two methods. The LAMP assay is a rapid, highly specific and sensitive method for the diagnosis of retinitis caused by HSV-1.
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Affiliation(s)
- A K Reddy
- Jhaveri Microbiology Centre, Hyderabad Eye Research Foundation, LV Prasad Eye Institute, Hyderabad, India.
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Chauhan PS, Kaur I, Dogra S, De D, Kanwar AJ. Narrowband ultraviolet B versus psoralen plus ultraviolet A therapy for severe plaque psoriasis: an Indian perspective. Clin Exp Dermatol 2011; 36:169-73. [DOI: 10.1111/j.1365-2230.2010.03874.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Yadav S, Dogra S, Kaur I. An unusual anatomical colocalization of alopecia areata and vitiligo in a child, and improvement during treatment with topical prostaglandin E2. Clin Exp Dermatol 2010; 34:e1010-1. [PMID: 20055821 DOI: 10.1111/j.1365-2230.2009.03677.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Mahajan R, Kaur I, Kanwar AJ. Methotrexate/narrowband UVB phototherapy combination vs. narrowband UVB phototherapy in the treatment of chronic plaque-type psoriasis - a randomized single-blinded placebo-controlled study. J Eur Acad Dermatol Venereol 2010; 24:595-600. [DOI: 10.1111/j.1468-3083.2009.03486.x] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Puri M, Kaur I, Kanwar R, Gupta R, Chauhan A, Kanwar J. Ribosome Inactivating Proteins (RIPs) from Momordica charantia for Anti Viral Therapy. Curr Mol Med 2009; 9:1080-94. [DOI: 10.2174/156652409789839071] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2009] [Accepted: 04/21/2009] [Indexed: 11/22/2022]
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Singh I, Verma A, Kaur I, Bharadwaj LM, Bhatia V, Jain VK, Bhatia CS, Bhatnagar PK, Mathur PC. The effect of length of single-walled carbon nanotubes (SWNTs) on electrical properties of conducting polymer-SWNT composites. ACTA ACUST UNITED AC 2009. [DOI: 10.1002/polb.21847] [Citation(s) in RCA: 17] [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: 11/12/2022]
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Goyal R, Singh NP, Kumar A, Kaur I, Singh M, Sunita N, Mathur M. SIMPLE AND ECONOMICAL METHOD FOR SPECIATION AND RESISTOTYPING OF CLINICALLY SIGNIFICANT COAGULASE NEGATIVE STAPHYLOCOCCI. Indian J Med Microbiol 2006. [DOI: 10.1016/s0255-0857(21)02350-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Goyal R, Singh NP, Kumar A, Kaur I, Singh M, Sunita N, Mathur M. Simple and economical method for speciation and resistotyping of clinically significant coagulase negative staphylococci. Indian J Med Microbiol 2006; 24:201-4. [PMID: 16912440] [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: 05/11/2023]
Abstract
An attempt was made to speciate 102 clinically significant isolates of coagulase negative staphylococci (CoNS) by a practical scheme adapted from various references. This scheme utilizes slide and tube coagulase test, urease test ornithine decarboxylase, novobiocin susceptibility and aerobic acid from mannose for assigning species group. Inclusion of one or two additional tests in a species group could identify the isolates to species level. Ninety eight (97%) isolates were conveniently identified as S. epidermidis (41%), S. saprophyticus (16.6%), S. haemolyticus (14.7%), S. hominis (14.7%), S. lugdunensis (4.9%), S. schleiferi (1.9%) and S. capitis (1.9%). Only four isolates were not identified to the species level, two of which were probably S. capitis subspecies ureolyticus / S. warneri / S. simulans . Antibiotic susceptibility testing showed maximum resistance to ampicillin (89%) followed by cefotaxime (59%) with no resistance to vancomycin. The increasing recognition of pathogenic potential of CoNS and emergence of drug resistance amongst them denotes the need to adopt simple laboratory procedures to identify and understand the diversity of staphylococci isolated from clinical material.
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Affiliation(s)
- R Goyal
- Department of Microbiology, University College of Medical Sciences and GTB Hospital, New Delhi - 110 095, India.
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Robinson SN, Ng J, Niu T, Yang H, McMannis JD, Karandish S, Kaur I, Fu P, Del Angel M, Messinger R, Flagge F, de Lima M, Decker W, Xing D, Champlin R, Shpall EJ. Superior ex vivo cord blood expansion following co-culture with bone marrow-derived mesenchymal stem cells. Bone Marrow Transplant 2006; 37:359-66. [PMID: 16400333 PMCID: PMC1885539 DOI: 10.1038/sj.bmt.1705258] [Citation(s) in RCA: 173] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
One factor limiting the therapeutic efficacy of cord blood (CB) hematopoietic progenitor cell (HPC) transplantation is the low cell dose of the graft. This is associated with an increased incidence of delayed or failed engraftment. Cell dose can be increased and the efficacy of CB transplantation potentially improved, by ex vivo CB expansion before transplantation. Two ex vivo CB expansion techniques were compared: (1) CD133+ selection followed by ex vivo liquid culture and (2) co-culture of unmanipulated CB with bone-marrow-derived mesenchymal stem cells (MSCs). Ex vivo culture was performed in medium supplemented with granulocyte colony-stimulating factor, stem cell factor and either thrombopoietin or megakaryocyte growth and differentiation factor. Expansion was followed by measuring total nucleated cell (TNC), CD133+ and CD34+ cell, colony-forming unit and cobblestone area-forming cell output. When compared to liquid culture, CB-MSC co-culture (i) required less cell manipulation resulting in less initial HPC loss and (ii) markedly improved TNC and HPC output. CB-MSC co-culture therefore holds promise for improving engraftment kinetics in CB transplant recipients.
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Affiliation(s)
- S N Robinson
- Department of Blood and Marrow Transplantation, University of Texas MD Anderson Cancer Center, Houston, TX 77030-4009, USA.
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Kumaran MS, Kaur I, Kumar B. Effect of topical calcipotriol, betamethasone dipropionate and their combination in the treatment of localized vitiligo. J Eur Acad Dermatol Venereol 2006; 20:269-73. [PMID: 16503885 DOI: 10.1111/j.1468-3083.2006.01420.x] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.5] [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: 11/30/2022]
Abstract
BACKGROUND Treatment of vitiligo is a challenge. Steroids are known to be effective but are associated with serious adverse effects. Many uncontrolled studies have shown calcipotriol to be a promising therapeutic modality in vitiligo. OBJECTIVE To conduct a randomized trial to evaluate the effect of topical calcipotriol ointment (0.005%) and betamethasone dipropionate (0.05%) cream, given alone or in combination, in treatment of localized vitiligo. METHODS Forty-nine patients with vitiligo affecting 5% of their skin were recruited. Patients were randomized into three groups. Group I patients were treated with betamethasone dipropionate (0.05%) cream twice daily. Group II patients were treated with calcipotriol ointment (0.005%) twice daily, and group III with betamethasone dipropionate (0.05%) in the morning and calcipotriol (0.005%) in the evening. RESULTS Forty-five patients completed the study period of 3 months with 15 patients in each group. No patient achieved excellent (> 75%) pigmentation. Marked (50% to 75%) repigmentation was observed in 2 (13.3%), 1 (6.7%) and 4 (26.7%) patients in groups I, II and III, respectively. Moderate (25-50%) repigmentation was observed in 7 (46.7%), 5 (33.3%) and 7 (46.7%) patients in groups I, II and III, respectively. Patients with < 25% pigmentation were termed as minimal pigmentation or no response. The mean time for initial pigmentation to appear was 9.04 +/- 2.0 weeks in group I, 10.18 +/- 1.6 weeks in group II and 5.17 +/- 2.4 weeks in group III (P < 0.01). The acquired pigmentation in the lesions was more stable in group III as compared with patients in groups II and I (P < 0.01). Side-effects in the form of atrophy and lesional burning sensations were more common in group I when compared with groups II and III (P < 0.05). CONCLUSION Combined therapy appeared to give a significantly faster onset of repigmentation along with better stability of the achieved pigmentation and with lesser number of side-effects.
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Affiliation(s)
- M S Kumaran
- Department of Dermatology, Venereology and Leprology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
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Robinson S, Ng J, Niu T, Yang H, McMannis J, Karandish S, Kaur I, Fu P, Del Angel M, Messinger R, Flagge F, de Lima M, Decker W, Xing D, Champlin R, Shpall E. Superior EX vivo cord blood TNC and hematopoietic progenitor cell expansion following co-culture with bone marrow-derived mesenchymal stem cells. Biol Blood Marrow Transplant 2006. [DOI: 10.1016/j.bbmt.2005.11.406] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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