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Sankar J, Prasad CB, Mathew J, Dhir V, Jain S. Erosive hand osteoarthritis. QJM 2023; 116:871-872. [PMID: 37267217 DOI: 10.1093/qjmed/hcad114] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Indexed: 06/04/2023] Open
Affiliation(s)
- J Sankar
- Department of Internal Medicine, Clinical Immunology and Rheumatology Unit, Post Graduate Institute of Medical Education and Research, Chandigarh 160012, India.
| | - C B Prasad
- Department of Internal Medicine, Clinical Immunology and Rheumatology Unit, Post Graduate Institute of Medical Education and Research, Chandigarh 160012, India.
| | - J Mathew
- Department of Internal Medicine, Clinical Immunology and Rheumatology Unit, Post Graduate Institute of Medical Education and Research, Chandigarh 160012, India.
| | - V Dhir
- Department of Internal Medicine, Clinical Immunology and Rheumatology Unit, Post Graduate Institute of Medical Education and Research, Chandigarh 160012, India.
| | - S Jain
- Department of Internal Medicine, Clinical Immunology and Rheumatology Unit, Post Graduate Institute of Medical Education and Research, Chandigarh 160012, India.
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Prasad CB, Sankar J, Dhir V, Jain S. Trolley-track sign in ankylosing spondylitis. QJM 2023; 116:231-232. [PMID: 36308443 DOI: 10.1093/qjmed/hcac247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2022] [Accepted: 10/24/2022] [Indexed: 11/09/2022] Open
Affiliation(s)
- C B Prasad
- Clinical Immunology and Rheumatology Unit, Department of Internal Medicine, Post Graduate Institute of Medical Education and Research, Chandigarh 160012, India
| | - J Sankar
- Clinical Immunology and Rheumatology Unit, Department of Internal Medicine, Post Graduate Institute of Medical Education and Research, Chandigarh 160012, India
| | - V Dhir
- Clinical Immunology and Rheumatology Unit, Department of Internal Medicine, Post Graduate Institute of Medical Education and Research, Chandigarh 160012, India
| | - S Jain
- Clinical Immunology and Rheumatology Unit, Department of Internal Medicine, Post Graduate Institute of Medical Education and Research, Chandigarh 160012, India
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Sankar J, Mathew J, Jain S, Dhir V. 'Ray Pattern' of Hand Joint Involvement. Mediterr J Rheumatol 2023; 34:108-109. [PMID: 37223592 PMCID: PMC10201106 DOI: 10.31138/mjr.34.1.108] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 06/30/2022] [Accepted: 07/03/2022] [Indexed: 05/25/2023] Open
Affiliation(s)
| | | | | | - Varun Dhir
- Corresponding Author: Varun Dhir, Professor, Rheumatology Division, Department of Internal Medicine, Postgraduate Institute of Medical Education and Research, Chandigarh 160012, India, Tel.: +91 172 2756670, E-mail:
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Elifranji M, Sankar J, Abdelrasool I, Brisseau G. Delayed Diagnosis of a Pyloric Web Causing Gastric Outlet Obstruction in a 13-Month-Old Girl. European J Pediatr Surg Rep 2021; 9:e20-e22. [PMID: 33680708 PMCID: PMC7929721 DOI: 10.1055/s-0041-1723017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Accepted: 09/24/2020] [Indexed: 11/28/2022] Open
Abstract
Pyloric web is a rare cause of gastric outlet obstruction. Classical pyloric web can be diagnosed by obtaining a patient history, physical examination, and plain abdominal X-ray, whereas a perforated web leads to incomplete intestinal obstruction. Delayed diagnosis is rare, and the definite diagnosis is made by upper endoscopy. In this report, we report a case of a girl in whom a pyloric web was diagnosed at the age of 13 months.
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Affiliation(s)
- Mohammed Elifranji
- Department of Surgery, Sidra Medicine, Doha, Qatar.,Department of Pediatric Surgery, Hamad Medical Corporation, Doha, Qatar
| | - Jisha Sankar
- Department of Gastroenterology, Sidra Medicine, Doha, Qatar
| | | | - Guy Brisseau
- Department of Pediatric Surgery, Sidra Medicine, Doha, Qatar
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Sankar J, Majumdar SS, Unniyal M, Singh H, Khullar A, Kumar K. Bilateral ptosis: An unusual presentation of mid brain tuberculoma. Med J Armed Forces India 2021; 77:96-100. [PMID: 33487874 DOI: 10.1016/j.mjafi.2018.12.014] [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: 08/24/2018] [Accepted: 12/26/2018] [Indexed: 11/28/2022] Open
Abstract
Central nervous system tuberculoma can have different clinical manifestations like headache, seizures, papilledema or other signs of raised intracranial pressure depending up on the site and number of tuberculoma. We report a case of 56 year old female reported with history of bilateral asymmetric ptosis of one month duration,with no other neurological defecit. Magnetic resonance imaging (MRI) brain revealed well defined ring enhancing lesion in the medial aspect of left hemi midbrain with diffuse disproportionate perilessional edema. Contrast Enhanced Computed Tomogram (CECT) of chest and abdomen revealed features of disseminated tuberculosis. She was diagnosed as a case of disseminated tuberculosis and started on antitubercular therapy with steroids and the ptosis almost resolved after 01 month of antitubercular therapy. Our case report is unique in the sense that only few cases of midbrain tuberculoma causing occulomotor abnormalities are reported in literature.
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Affiliation(s)
- J Sankar
- Graded Specialist (Medicine), Military Hospital Chennai, Tamilnadu, India
| | - S S Majumdar
- Graded Specialist (Medicine), Military Hospital Chennai, Tamilnadu, India
| | - Manish Unniyal
- Classified Specialist (Radiodiagnosis), Military Hospital Chennai, Tamilnadu, India
| | - Harmanpreet Singh
- Graded Specialist(Ophthalmology), Military Hospital Chennai, Tamilnadu, India
| | - Atul Khullar
- Commandant, Military Hospital Chennai, Tamilnadu, India
| | - Kishore Kumar
- Senior Advisor (Medicine&Oncology), Command Hospital (Air Force), Bengaluru, India
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Hassan K, Sher G, Hamid E, Hazima KA, Abdelrahman H, Al Mudahka F, Al-Masri W, Sankar J, Daryaee M, Shawish R, Khan MA, Nawaz Z. Outcome associated with EPCAM founder mutation c.499dup in Qatar. Eur J Med Genet 2020; 63:104023. [PMID: 32735948 DOI: 10.1016/j.ejmg.2020.104023] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Revised: 05/12/2020] [Accepted: 07/20/2020] [Indexed: 01/16/2023]
Abstract
Tufting enteropathy (TE) is a rare autosomal recessive congenital enteropathy that usually requires long-term parenteral nutrition (PN). In the Arabic Peninsula, four distinct EPCAM mutations have been identified to cause TE. As consanguineous marriages are socially favored, pre-marital and pre-conception testing has become a critical disease prevention strategy. This study aimed to identify the pathogenic EPCAM mutations causing TE in Qatari families and determine possible genotype-phenotype correlations. Twenty-two TE patients from seven multiplex families with TE were identified. Blood samples were collected from patients and first-degree relatives. Exons of the gene were amplified and sequenced. Retrospective chart review and/or family interviews were conducted to determine phenotypic characteristics of the disease. Sequence analysis revealed a single, previously described c.499dup mutation in exon 5 of all families tested, suggesting a founder effect. Of the 18 patients whose full clinical information was available, three patients (17%) were off PN with a good quality of life, without intestinal transplantation, and one (6%) was receiving partial PN. Our patients with TE were severely stunted compared to a similar group of patients receiving long-term PN for short bowel syndrome, suggesting that this could possibly be due to TE rather than secondary to inadequate nutrition. Our study identified the EPCAM mutation c.499dup as the genetic defect causing TE in all the participant Qatari families. This finding should facilitate early diagnosis of TE and genetic counseling. Furthermore, it should aid in the prevention of TE through pre-marital screening, antenatal diagnosis, and pre-implantation genetic diagnosis.
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Affiliation(s)
- Kamal Hassan
- Pediatric Gastroenterology Section, Hamad General Hospital, P.O. Box 3050, Doha, Qatar; Pediatric Gastroenterology Section, Sidra Medicine, P.O. Box 269999, Doha, Qatar.
| | - Gulab Sher
- Translational Research Institute, Academic Health System, Hamad Medical Corporation, Doha, 3050, Qatar
| | - Eman Hamid
- Pediatric Gastroenterology Section, Hamad General Hospital, P.O. Box 3050, Doha, Qatar
| | - Khalid Abou Hazima
- Pediatric Gastroenterology Section, Hamad General Hospital, P.O. Box 3050, Doha, Qatar; Pediatric Gastroenterology Section, Sidra Medicine, P.O. Box 269999, Doha, Qatar
| | - Hatim Abdelrahman
- Pediatric Gastroenterology Section, Hamad General Hospital, P.O. Box 3050, Doha, Qatar; Pediatric Gastroenterology Section, Sidra Medicine, P.O. Box 269999, Doha, Qatar
| | - Fatma Al Mudahka
- Pediatric Gastroenterology Section, Hamad General Hospital, P.O. Box 3050, Doha, Qatar; Pediatric Gastroenterology Section, Sidra Medicine, P.O. Box 269999, Doha, Qatar
| | - Wesam Al-Masri
- Pediatric Gastroenterology Section, Hamad General Hospital, P.O. Box 3050, Doha, Qatar; Pediatric Gastroenterology Section, Sidra Medicine, P.O. Box 269999, Doha, Qatar
| | - Jisha Sankar
- Pediatric Gastroenterology Section, Hamad General Hospital, P.O. Box 3050, Doha, Qatar; Pediatric Gastroenterology Section, Sidra Medicine, P.O. Box 269999, Doha, Qatar
| | - Mahlah Daryaee
- Patient & Family Department, Hamad General Hospital, P.O. Box 3050, Doha, Qatar
| | - Rana Shawish
- Pediatric Gastroenterology Section, Sidra Medicine, P.O. Box 269999, Doha, Qatar; Patient & Family Department, Hamad General Hospital, P.O. Box 3050, Doha, Qatar
| | - Muzammil Ahmad Khan
- Diagnostic Genomic Division, Department of Laboratory Medicine and Pathology, Hamad Medical Corporation, Doha, 3050, Qatar; Gomal Centre of Biochemistry and Biotechnology, Gomal University Dera Ismail Khan, Khyber-Pakhtoonkhwa, 29050, Pakistan
| | - Zafar Nawaz
- Diagnostic Genomic Division, Department of Laboratory Medicine and Pathology, Hamad Medical Corporation, Doha, 3050, Qatar
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Sankar J, Uniyal M, Kumar K. Hamman syndrome. Natl Med J India 2020; 33:180. [PMID: 33904425 DOI: 10.4103/0970-258x.314008] [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: 06/12/2023]
Affiliation(s)
- J Sankar
- Department of Medicine, Military Hospital, Chennai, Tamil Nadu, India
| | - Maneesh Uniyal
- Department of Radiodiagnosis, Military Hospital, Chennai, Tamil Nadu, India
| | - Kishore Kumar
- Department of Medicine and Oncology, Command Hospital, Bengaluru, Karnataka, India
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Sankar J, Mahesh NK, Sharma P, Sankar L, Balasubramanian A. Role of Ambulatory Blood Pressure Monitoring in Chronic Hypertensive Patients on Antihypertensive Therapy-A Cross-sectional Study. J Clin Diagn Res 2018. [DOI: 10.7860/jcdr/2018/37103.12081] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Sankar J, Hawkins D, McQueen HJ. Behaviour of low-carbon and HSLA steels during torsion-simulated continuous and interrupted hotrolling practice. ACTA ACUST UNITED AC 2013. [DOI: 10.1179/030716979803276534] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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Sanghar J, Ramasamy S, Sankar J, David Austin R. Efficacy of Ultrasonography in the Diagnosis of Inflammatory Swellings of Odontogenic Origin. JIAOMR 2012. [DOI: 10.5005/jp-journals-10011-1270] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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Ramakrishnan KM, Jayaraman V, Mathivanan T, Babu M, Ramachandran B, Sankar J. Profile of burn sepsis challenges and outcome in an exclusive children's hospital in Chennai, India. Ann Burns Fire Disasters 2012; 25:13-16. [PMID: 23012610 PMCID: PMC3431721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 02/02/2012] [Indexed: 06/01/2023]
Abstract
A group of 273 paediatric patients admitted to Kanchi Kamakoti Childs Trust Hospital Burn Unit, Chennai, India between the years 2004 to 2010 were analysed retrospectively. Of these, 89 were suffering from sepsis and septic shock and 15 died. Strict adherence to antibiotic administration and to the Paediatric Intensive Care Unit (PICU) and management protocol improved the outcome, especially in 2009 and 2010.
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Abstract
Hypereosinophilic syndrome in children is rare and is characterised by sustained over-production of eosinophils. An 11-year-old boy was diagnosed with hypereosinophilic syndrome as per standard criteria. He was treated initially with intravenous methylprednisolone, followed by oral prednisolone, to which he showed a limited response. The highest absolute eosinophil count was 27.0×10(9)/L. He was commenced on imatinib mesylate but, because of no response, he was switched to hydroxyurea combined with low-dose prednisolone to which he showed improvement with decreasing levels of eosinophils.
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Affiliation(s)
- A Srinivasan
- Department of Pediatrics, Kanchi Kamakoti CHILDS Trust Hospital, CHILDS Trust Medical Research Foundation, Chennai, India.
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Wei Q, Narayan RJ, Sharma AK, Sankar J, Narayan J. Doping Induced Internal Stress Reduction in Diamondlike Carbon Films Deposited by Pulsed Laser Ablation. ACTA ACUST UNITED AC 2011. [DOI: 10.1557/proc-498-61] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
ABSTRACTWe have investigated the effect of dopants on the reduction of internal compressive stress in diamond-like carbon (DLC) films prepared by pulsed laser deposition on Si(100) substrates. A novel target configuration was used to incorporate dopants into DLC films by sequential pulsed laser ablation of two targets. These dopants include copper, titanium and silicon. The thickness of the DLC films deposited was measured in the range 400nm - 600nm using a profilometer. Raman spectroscopy was employed to analyze the chemistry of the films. The shifts of the G-peak position in the Raman spectrum, due to different concentrations of dopant, were used to estimate the internal stress changes. All of the films showed a Raman spectrum typical of DLC films containing a high fraction of sp3 species, with the G-peak centered at around 1510–1560cm−1. The shift of the G-peak due to the presence of dopants was observed for all the DLC films as compared to the undoped one. It was found that Ti has the strongest tendency to reduce the compressive stress of DLC films. This effect increases with increasing concentration of dopants. Silicon was also observed to have this effect, but the G-peak position did not appear to shift with different Si concentrations. Buckling occurred in the as-deposited, undoped DLC film because of the relief of the large compressive stress accumulated in the film, while all the doped DLC films showed good adhesion to the substrate. The results are discussed combining the atomic structure of DLC and the structure and properties of the dopants.
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Mathangi Ramakrishnan K, Mathivanan Y, Sankar J. Profile of children abused by burning. Ann Burns Fire Disasters 2010; 23:8-12. [PMID: 21991189 PMCID: PMC3188242] [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] [Subscribe] [Scholar Register] [Received: 01/22/2010] [Indexed: 05/31/2023]
Abstract
In an analysis of paediatric burn admissions to a hospital in India during the years 1992-2007, 9.3% of burn injuries were found to be secondary to abuse. These had valid documented evidence and child neglect was excluded. This incidence of child abuse has been on the rise in the last seven years and was more evident due to careful investigation by a team comprising a plastic surgeon, a paediatrician, a legal expert, a psychologist, and a social worker. As with the incidence reported by many other researchers, most of the injuries were caused by scalding.
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Affiliation(s)
- K Mathangi Ramakrishnan
- Intensive Paediatric Burn Care Unit and Plastic Surgery, K.K. Childs Trust Medical Research Foundation and K.K. Childs Trust Hospital, Chennai, India
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Affiliation(s)
- J Sankar
- Department of Pediatrics, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India
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Orlovskaya N, Adams J, Chheda M, Shih J, Yarmolenko S, Sankar J, Lugovy M, Subbotin V. Boron Carbide-Silicon Carbide Laminated Ceramics for Ballistic Protection. MATERIALS 2008. [DOI: 10.1115/imece2003-43323] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The paper describes the development of tough boron carbide-silicon carbide ceramic laminates with enhanced ballistic performance for armor application. Laminates with strong interfaces can provide high fracture toughness and damage tolerance along with improved ballistic protection. The enhancement of the mechanical/ballistic performance of laminates is obtained through design of controlled residual stresses in separate layers. The research produced a fundamental knowledge of the interrelationships between processing, residual stresses, and mechanical behavior of boron carbide based multilayered ceramic composites with an enhanced understanding of laminate’s fracture toughness, strength, and Young’s modulus. It was expected that the newly developed laminates would have necessary mechanical properties to increase maximum critical velocity of dwell/penetration transition during impact experiments.
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Affiliation(s)
| | - J. Adams
- U.S. Army Research Laboratory, Aberdeen Proving Ground, MD
| | | | - J. Shih
- Ceradyne, Inc., Costa Mesa, CA
| | | | - J. Sankar
- North Carolina A&T State University, Greensboro, NC
| | - M. Lugovy
- Institute for Problems of Strength, Kiev, Ukraine
| | - V. Subbotin
- Institute for Problems of Materials Science, Kiev, Ukraine
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Rath H, Anand VG, Sankar J, Venkatraman S, Chandrashekar TK, Joshi BS, Khetrapal CL, Schilde U, Senge MO. Core-modified hexaphyrins; characterization of two- and four-ring inverted 26 pi aromatic macrocycles. Org Lett 2003; 5:3531-3. [PMID: 12967317 DOI: 10.1021/ol035408q] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
[reaction: see text] Synthesis and structural characterization of aromatic core-modified 26 pi hexaphyrin analogues are reported.
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Affiliation(s)
- Harapriya Rath
- Department of Chemistry, Indian Institute of Technology, Kanpur, India 208 016
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Pushpan SK, Venkatraman S, Anand VG, Sankar J, Rath H, Chandrashekar TK. Inverted porphyrins and expanded porphyrins: An overview. J CHEM SCI 2002. [DOI: 10.1007/bf02703823] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Pushpan SK, Venkatraman S, Anand VG, Sankar J, Parmeswaran D, Ganesan S, Chandrashekar TK. Porphyrins in photodynamic therapy - a search for ideal photosensitizers. Curr Med Chem Anticancer Agents 2002; 2:187-207. [PMID: 12678743 DOI: 10.2174/1568011023354137] [Citation(s) in RCA: 133] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The utility of light as a therapeutic agent can be traced back over thousands of years when it was used in Ancient Egypt, India and China to treat a variety of skin diseases like psoriasis, vitiligo, rickets, cancer and psychosis. The isolation of porphyrins and their inherent tumor localizing properties coupled with its ability to generate reactive singlet oxygen when activated by light of particular wavelength which in turn results in cytotoxicity led to the emergence of a new modality namely, photodynamic therapy (PDT) as a therapeutic tool. The higher degree of selectivity offered by this modality and fewer side effects when compared to chemotherapy and radiotherapy has prompted the researchers around the globe to generate new photosensitizers. Porphyrins and expanded porphyrins are one class of molecules under intense investigation due to their photosensitizing ability for PDT application. Expanded porphyrins result from the expansion of the phi electron conjugation by increasing the number of heterocyclic rings or bridging carbons of the existing porphyrin framework. These chromophores show strong absorptions in the red region (650-800 nm) compared to that of normal 18phi porphyrins. The strong absorption of light by a water soluble nontoxic photosensitizing molecule in the therapeutic window resulting in maximum penetration of light into the tissues coupled with high singlet oxygen production will conceptualize an ideal photosensitizer. This review highlights various porphyrinoid sensitizers reported till date and their photosensitizing ability both in vitro and in vivo studies. Furthermore, the urgent need for developing ideal photosensitizer for PDT will also be highlighted.
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Affiliation(s)
- S K Pushpan
- Department of Chemistry, Indian Institute of Technology, Kanpur-208 016, India
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