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Chaursia B, Singh T, Varshney B, Sharma P, Iyer S, Khuroo A, Monif T. Development and Validation of Liquid Chromatography-Tandem Mass Spectrometric Method for Quantification of Meropenem in Rat Plasma and its Application in a Preclinical Dose Proportionality Study. Drug Res (Stuttg) 2013; 64:321-9. [DOI: 10.1055/s-0033-1358702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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102
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Nokihara H, Hirsh V, Blackhall F, Kim DW, Besse B, Han JY, Wilner K, Reisman A, Iyer S, Shaw A. Phase III Study of Crizotinib vs. Chemotherapy in Advanced ALK+ NSCLC: Patient-Reported Symptoms and Quality of Life. Ann Oncol 2013. [DOI: 10.1093/annonc/mdt459.53] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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103
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Ramakrishnan N, Baronia AK, Divatia JV, Bhagwati A, Chawla R, Iyer S, Jani CK, Joad S, Kamat V, Kapadia F, Mehta Y, Myatra SN, Nagarkar S, Nayyar V, Padhy S, Rajagopalan R, Ray B, Sahu S, Sampath S, Todi S. Critical care delivery in intensive care units in India: Defining the functions, roles and responsibilities of a consultant intensivist. Indian J Crit Care Med 2013. [DOI: 10.5005/ijccm-17-5-15] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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104
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Iyer S. Extensor digiti minimi transfer for thumb extension. J Plast Reconstr Aesthet Surg 2013; 66:e264-6. [DOI: 10.1016/j.bjps.2013.03.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2012] [Revised: 12/02/2012] [Accepted: 03/09/2013] [Indexed: 10/27/2022]
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105
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Evgeniou E, Markeson D, Iyer S, Armstrong A. The management of animal bites in the United kingdom. EPLASTY 2013; 13:e27. [PMID: 23837110 PMCID: PMC3681434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVE Animal bites represent a significant global health issue. The evidence in the literature regarding their management in many areas is conflicting and unclear. This project attempts to identify current evidence in the literature on the management of animal bites and assess if current practice in the United Kingdom is evidence based. MATERIALS AND METHODS A literature review on the management of animal bites was performed, and a national UK survey was contacted using a questionnaire based on the available evidence in the literature. RESULTS The results from this survey show that 98% of plastic surgery units routinely use prophylactic antibiotics in all animal bite wounds; 58% close low-risk injuries primarily after initial washout, and there are conflicting opinions regarding the management of associated fractures and soft tissue injuries. The available data in the literature suggest that appropriate wound management is the most important factor for prevention of infection in animal bites. Antibiotic prophylaxis should only be given in high-risk wounds and primary closure should be performed in low-risk wounds. CONCLUSIONS The management protocols of many plastic surgery units often diverge from the available evidence within the literature. On the basis of a thorough literature review, a guideline for the management of animal bites is presented. Future studies should investigate the management of associated fractures and soft tissue injuries.
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106
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Herman AE, Kennedy WP, Townsend M, Williams M, Grogan J, Fischer S, Iyer S, Song A, Davis JC. FRI0170 Pharmacodynamic biomarkers demonstrate overlapping and distinct biological pathways for lymphotoxin-alpha and tumor necrosis factor-alpha in patients with rheumatoid arthritis. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.1297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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107
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Hu H, Wang J, Lee O, Shidfar A, Iyer S, Ivancic D, Chatterton RT, Stearns V, Sukumar S, Khan SA. Abstract P3-04-08: Expression of hormone-responsive genes in benign breast tissue varies with menstrual cycle phase and menopausal status. Cancer Res 2012. [DOI: 10.1158/0008-5472.sabcs12-p3-04-08] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: The expression of many genes is known to be regulated by ambient hormone levels. In a preliminary study of random fine-needle aspirate (rFNA) samples from benign breast tissue, we found several genes that were highly correlated with the serum levels of progesterone (P4) and estradiol (E2). We now present data to further validate these genes as markers of menstrual cycle phase (MCP) and menopausal status (MPS) in benign breast tissue which may allow retrospective classification of archived breast samples with respect to MCP and MPS at the time of sampling.
Methods: 240 rFNA samples from healthy women with recorded hormonal data at the time of sampling were analyzed. We divided these subjects by menstrual cycle phase (MCP) and menopausal status (MPS): 41 early follicular: (low circulating E2 and P4); 48 mid-cycle (high E2 and low P4); 31 luteal (moderate E2 and high P4). 120 post-menopausal (low E2 and low P4). 100 ng of RNA from rFNA samples of the breast was reverse transcribed. Amplicons of interest were linearly amplified to 14 cycles for 35 genes related to hormone responsiveness. qPCR reactions were carried out using the TaqMan OpenArray (Applied Biosystems). For each gene of interest, expression levels were normalized to the average expression of GAPDH. Gene expression difference between groups were conducted using the Mann-Whitney Test. P-values from gene expression difference were adjusted via the Benjamini-Hochberg (1995) approach.
Results: The mean value of TNFSF11 expression level was 13.19 fold higher in luteal phase subjects than in post-menopausal subjects (p = 0.0003) where there was also the biggest difference of serum P4 level between groups. The expression of DIO2 and MYBPC1 was also significantly higher in luteal phase group than in the post-menopausal group (p = 0.005, p = 0.02, respectively). These 3 genes also demonstrated a higher expression pattern in luteal phase than mid-cycle and follicular phase but analysis is still ongoing. All comparisons between these groups will be presented at the meeting.
Conclusion: The expression levels of TNFSF11, DIO2 and MYBPC1 vary with MCP and MPS. These hormone-responsive genes are candidate MCP classifiers which could be applied to archived breast samples to assess whether biomarkers of breast cancer risk are stable across the menstrual cycle, since MCP and MPS variation is likely an important source of biological noise in studies of archived breast biopsy material.
Citation Information: Cancer Res 2012;72(24 Suppl):Abstract nr P3-04-08.
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108
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Yang PC, Salgia R, Solomon B, Shaw A, Camidge D, Evans T, Kim DW, Shi Y, Han JY, De Pas T, Ou SH, Bartlett C, Wilner K, Reisman A, Iyer S. Visual Effects in Anaplastic Lymphoma Kinase (ALK)-Positive Advanced Non-Small-Cell Lung Cancer (NSCLC) Patients Treated with Crizotinib. Ann Oncol 2012. [DOI: 10.1016/s0923-7534(20)32041-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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109
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Jurgens CK, Morrow G, Boggiano C, Panis M, Coleman J, Powell R, Yuan M, Kemelman M, Tamot N, Lopez M, Ouattara A, Iyer S, Backer M, Wright K, Domi A, Chiuchiolo M, King CR, Caulfield M, Parks C. Evaluation of a replication-competent VSV-SIV vaccine candidate. Retrovirology 2012. [PMCID: PMC3441803 DOI: 10.1186/1742-4690-9-s2-p329] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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110
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Blackhall F, Evans T, Han J, Salgia R, Moro-Sibilot D, Gettinger S, Crino L, Wilner K, Reisman A, Iyer S. Impact of Crizotinib Treatment on Patient-Reported Symptoms and Quality of Life (QOL) in Advanced Alk-Positive Non-Small Cell Lung Cancer (NSCLC). Ann Oncol 2012. [DOI: 10.1016/s0923-7534(20)33882-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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111
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Kwa S, Sadagopal S, Hong J, Gangadhara S, Basu R, Lai L, Iyer S, Araki K, Earl PL, Wyatt L, Villinger F, Moss B, Ahmed R, Amara RR. CD40L adjuvant for DNA/MVA vaccine: enhanced protection from acquisition of neutralization sensitive & neutralization resistant mucosal SIV infections. Retrovirology 2012. [PMCID: PMC3442088 DOI: 10.1186/1742-4690-9-s2-p365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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112
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Rajagopal TS, Walia M, Wilson HA, Marshall RW, Andrade AJ, Iyer S. Gemella haemolysans spondylodiscitis: a report of two cases. ACTA ACUST UNITED AC 2012; 94:825-8. [PMID: 22628600 DOI: 10.1302/0301-620x.94b6.28291] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
We report on two cases of infective spondylodiscitis caused by Gemella haemolysans in otherwise healthy patients. This organism has only rarely been identified as a cause of bone and joint infection, with only two previous reports of infective spondylodiscitis. We describe the clinical features, investigations and treatment options.
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113
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Thankappan K, Duraisamy S, Iyer S, Kuriakose M, Joseph S. Craniofacial Resection for Malignant Paranasal Sinus Tumors: A Single-Center Experience. Skull Base Surg 2012. [DOI: 10.1055/s-0032-1313937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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114
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Joseph S, Rajapurkar M, Thankappan K, CS. Sampathirao L, Kuriakose M, Iyer S. Oncological and Functional Outcome of the Preserved Eye in Malignant Sinonasal Tumors. Skull Base Surg 2012. [DOI: 10.1055/s-0032-1314031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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115
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Joseph S, Thankappan K, Sampathirao L, Mathew J, Sharma M, Iyer S. Orbital Exenteration Defect Reconstruction: Options and Outcome. Skull Base Surg 2012. [DOI: 10.1055/s-0032-1314022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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116
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Thankappan K, Sampathirao L, Sharma M, Joseph S, Iyer S. Orbital Floor Reconstruction with Free Flaps after Maxillectomy. Skull Base Surg 2012. [DOI: 10.1055/s-0032-1314023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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117
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Iyer S, Xiao E, Alsayegh K, Eroshenko N, Riggs MJ, Bennett JP, Rao RR. Mitochondrial gene replacement in human pluripotent stem cell-derived neural progenitors. Gene Ther 2012; 19:469-75. [PMID: 21918550 PMCID: PMC11071659 DOI: 10.1038/gt.2011.134] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2011] [Revised: 07/13/2011] [Accepted: 08/05/2011] [Indexed: 12/22/2022]
Abstract
Human pluripotent stem cell-derived neural progenitor (hNP) cells are an excellent resource for understanding early neural development and neurodegenerative disorders. Given that many neurodegenerative disorders can be correlated with defects in the mitochondrial genome, optimal utilization of hNP cells requires an ability to manipulate and monitor changes in the mitochondria. Here, we describe a novel approach that uses recombinant human mitochondrial transcription factor A (rhTFAM) protein to transfect and express a pathogenic mitochondrial genome (mtDNA) carrying the G11778A mutation associated with Leber's hereditary optic neuropathy (LHON) disease, into dideoxycytidine (ddC)-treated hNPs. Treatment with ddC reduced endogenous mtDNA and gene expression, without loss of hNP phenotypic markers. Entry of G11778A mtDNA complexed with the rhTFAM was observed in mitochondria of ddC-hNPs. Expression of the pathogenic RNA was confirmed by restriction enzyme analysis of the SfaN1-digested cDNA. On the basis of the expression of neuron-specific class III beta-tubulin, neuronal differentiation occurred. Our results show for the first time that pathogenic mtDNA can be introduced and expressed into hNPs without loss of phenotype or neuronal differentiation potential. This mitochondrial gene replacement technology allows for creation of in vitro stem cell-based models useful for understanding neuronal development and treatment of neurodegenerative disorders.
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118
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Markeson D, Iyer S. A simple technique for the reduction of phalangeal condylar fractures in children. Ann R Coll Surg Engl 2012; 94:138. [PMID: 22497020 DOI: 10.1308/rcsann.2012.94.2.138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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119
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Virgincar N, Iyer S, Stacey A, Maharjan S, Pike R, Perry C, Wyeth J, Woodford N. Klebsiella pneumoniae producing KPC carbapenemase in a district general hospital in the UK. J Hosp Infect 2011; 78:293-6. [PMID: 21641083 DOI: 10.1016/j.jhin.2011.03.016] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2010] [Accepted: 03/07/2011] [Indexed: 11/27/2022]
Abstract
We report two patients with multidrug-resistant KPC-carbapenemase-producing Klebsiella pneumoniae urinary tract infections. A bla(KPC-2) gene was detected in both of the isolates by polymerase chain reaction and sequencing. The isolates had identical pulsed-field gel electrophoresis patterns and belonged to sequence type ST11. The index patient probably acquired the KPC-producing strain while in hospital in Curaçao, with subsequent nosocomial transmission to the second patient occurring in our hospital. We describe the interventions that were taken to prevent its further spread within the acute Trust and the community.
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120
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Stefanich EG, Danilenko DM, Wang H, O'Byrne S, Erickson R, Gelzleichter T, Hiraragi H, Chiu H, Ivelja S, Jeet S, Gadkari S, Hwang O, Fuh F, Looney C, Howell K, Albert V, Balazs M, Refino C, Fong S, Iyer S, Williams M. A humanized monoclonal antibody targeting the β7 integrin selectively blocks intestinal homing of T lymphocytes. Br J Pharmacol 2011; 162:1855-70. [PMID: 21232034 DOI: 10.1111/j.1476-5381.2011.01205.x] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
BACKGROUND AND PURPOSE rhuMAb Beta7 is a humanized anti-human β7 monoclonal antibody currently in phase I in inflammatory bowel disease. rhuMAb Beta7 binds the β7 subunit of the integrins α4β7 and αEβ7, blocking interaction with their ligands. These integrins play key roles in immune cell homing to and retention in mucosal sites, and are associated with chronic inflammatory diseases of the gastrointestinal tract. The goal of this study was to evaluate the mucosal specificity of rhuMAb Beta7. EXPERIMENTAL APPROACH We assessed the effect of murine anti-Beta7 on lymphocyte homing in mouse models of autoimmune disease. We also compared the effect of rhuMAb Beta7 on circulating mucosal-homing versus peripheral-homing T cells in naïve non-human primates. KEY RESULTS In cynomolgus monkeys, occupancy of β7 integrin receptors by rhuMAb Beta7 correlated with an increase in circulating β7(+) mucosal-homing lymphocytes, with no apparent effect on levels of circulating β7(-) peripheral-homing lymphocytes. rhuMAb Beta7 also inhibited lymphocyte homing to the inflamed colons of severe combined immunodeficient mice in CD45RB(high) CD4(+) T-cell transfer models. Consistent with a lack of effect on peripheral homing, in a mouse model of experimental autoimmune encephalomyelitis, anti-β7 treatment resulted in no amelioration of CNS inflammation. CONCLUSIONS AND IMPLICATIONS The results presented here suggest that rhuMAb Beta7 selectively blocks lymphocyte homing to the gastrointestinal tract without affecting lymphocyte trafficking to non-mucosal tissues. rhuMAb Beta7 provides a targeted therapeutic approach with the potential for a more attractive benefit:risk ratio than currently available inflammatory bowel disease therapies.
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121
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Iyer S, Rajapurker M, Kuriakose M, Thankappan K. P250. The preserved eye in malignant sinonasal tumours. Oral Oncol 2011. [DOI: 10.1016/j.oraloncology.2011.06.493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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122
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Balasubramanian D, Thankappan K, Batoo A, Rajapurkar M, Kuriakose M, Iyer S. P251. Isolated skip metastases to levels III and IV is a rare entity in oral tongue squamous cell carcinoma. Oral Oncol 2011. [DOI: 10.1016/j.oraloncology.2011.06.494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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123
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Kinhikar R, Umbarkar P, Iyer S, Shrivastava S, Deshpande D. SU-E-J-31: Site Specific Setup Errors Analysis of MVCT Daily Imaging with TomoTherapy. Med Phys 2011. [DOI: 10.1118/1.3611799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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124
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Iyer S, Turnbull KW, Powell C. Impact of neratinib on patient-reported outcomes. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.e11078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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125
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Davis KL, Iyer S, Candrilli S. Survival among elderly metastatic breast cancer patients in the United States. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.e16500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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