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Cystectomy VTE Prophylaxis: A Change in Practice. Int J Surg 2017. [DOI: 10.1016/j.ijsu.2017.08.498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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PUB040 Formulation and Evaluation of Embelin Loaded Transfersome for Effective Treatment of Skin Cancer. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.1903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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OR063 A case of recurrent splenic lesions in a patient with Vici syndrome. Ann Allergy Asthma Immunol 2017. [DOI: 10.1016/j.anai.2017.08.051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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154
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Impact of Surgery in the Management of High-Risk Prostate Cancer With Known Preoperative Clinical Risk Factors for Adjuvant Radiation Therapy. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.1160] [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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155
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A Metastatic Biology Gene Expression Assay to Predict the Risk of Distant Metastases in Patients With Localized Prostate Cancer Treated With Primary Radical Treatment. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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156
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A comparative study of adjustable and non-adjustable sutures in primary horizontal muscle surgery in children. Eye (Lond) 2017; 31:1746-1747. [PMID: 28776590 DOI: 10.1038/eye.2017.140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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Exceedingly facile one-pot protocols to the synthesis of pyrimido annulated analogues of carbazolo condensed azepinones and their evaluation for analgesic activity. B CHEM SOC ETHIOPIA 2017. [DOI: 10.4314/bcse.v31i1.8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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A pilot study of cabergoline for the treatment of metastatic breast cancer. Breast Cancer Res Treat 2017; 165:585-592. [PMID: 28674764 DOI: 10.1007/s10549-017-4370-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Accepted: 06/29/2017] [Indexed: 10/19/2022]
Abstract
PURPOSE The prolactin (PRL) receptor is over-expressed in breast cancer, and pre-clinical data indicate that it contributes to breast oncogenesis. Cabergoline is a potent dopamine receptor agonist of D2 receptors and has a direct inhibitory effect on pituitary PRL secretion. METHODS A phase II study of cabergoline in patients with metastatic breast cancer was conducted. The primary end point of the study was to determine the clinical benefit rate (CBR) at 2 months. Eligible patients had tumors of any receptor status with no limit of prior lines of therapy. Measurable and unmeasurable diseases were allowed. Cabergoline 1 mg orally, twice weekly (1 cycle = 4 weeks) was given until disease progression or unacceptable toxicity. PRL receptor immunohistochemical staining was performed on available baseline tumor tissue; serial serum PRL levels were assessed. RESULTS Twenty women were enrolled; 18 were evaluable for CBR. Tumor receptor status was distributed as follows: HR-any/HER2+ 2(10%), HR+/HER2- 18 (90%). The CBR was 33% (6/18), median progression free survival was 1.8 months, and median overall survival was 10.4 months. Two patients experienced disease control for over 12 months. Most common treatment-related adverse events were nausea (30%), fatigue (25%), and elevation in alkaline phosphatase (15%). Nine patients had baseline tissue for analysis; there was no association between baseline tumor PRL receptor expression and clinical benefit (p = 0.24). Change in serum PRL level and response were not correlated after 2 months of treatment (p = 0.64). CONCLUSION Cabergoline was well tolerated, and while the ORR was low, a small subset of patients experienced extended disease control.
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Janeway lesions. QJM 2017; 110:471-472. [PMID: 28444237 DOI: 10.1093/qjmed/hcx067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Osteonecrosis, splenic calcification and sickle cell disease. QJM 2017; 110:463-464. [PMID: 28340240 DOI: 10.1093/qjmed/hcx061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Successful management of refractory haematuria with recombinant porcine factor VIII replacement for paediatric congenital haemophilia A with high-titre inhibitor. Haemophilia 2017; 23:e358-e361. [PMID: 28474428 DOI: 10.1111/hae.13240] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/17/2017] [Indexed: 11/29/2022]
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162
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OC-0126: A gene expression assay to predict the risk of distant metastases in localized prostate cancer. Radiother Oncol 2017. [DOI: 10.1016/s0167-8140(17)30569-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Vortex dynamics and frequency splitting in vertically coupled nanomagnets. Sci Rep 2017; 7:1127. [PMID: 28442791 PMCID: PMC5430672 DOI: 10.1038/s41598-017-01222-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Accepted: 03/08/2017] [Indexed: 11/23/2022] Open
Abstract
We explored the dynamic response of a vortex core in a circular nanomagnet by manipulating its dipole-dipole interaction with another vortex core confined locally on top of the nanomagnet. A clear frequency splitting is observed corresponding to the gyrofrequencies of the two vortex cores. The peak positions of the two resonance frequencies can be engineered by controlling the magnitude and direction of the external magnetic field. Both experimental and micromagnetic simulations show that the frequency spectra for the combined system is significantly dependent on the chirality of the circular nanomagnet and is asymmetric with respect to the external bias field. We attribute this result to the strong dynamic dipole-dipole interaction between the two vortex cores, which varies with the distance between them. The possibility of having multiple states in a single nanomagnet with vertical coupling could be of interest for magnetoresistive memories.
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Role of nebivolol in the control and management of central aortic blood pressure in hypertensive patients. J Hum Hypertens 2017; 31:605-610. [PMID: 28382958 DOI: 10.1038/jhh.2017.26] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Revised: 01/17/2017] [Accepted: 02/17/2017] [Indexed: 01/21/2023]
Abstract
Measurement of blood pressure (BP) using a brachial cuff sphygmomanometer is universally accepted for the diagnosis of hypertension and prediction of cardiovascular diseases. However, brachial systolic BP does not represent actual systolic BP in the central arteries which encounter cardiac load directly. Due to wave amplification from central to peripheral arteries, a significant difference exists between the two. Central BP measurements also account for arterial stiffness, vessel branching and vascular mechanics, unlike brachial BP. Emerging data suggests that hypertension can be diagnosed more accurately by central pressure indices as compared to brachial BP. Various non-invasive techniques are now available to measure central BP indices owing to recent technological advances. Recently, it has been reported that different classes of anti-hypertensive drugs display differential effects on brachial and central BPs. Nebivolol is a cardio-selective beta-blocker which targets central systolic BP and reduces it significantly along with brachial BP. In this article, we will review the current literature to evaluate the role of central BP to diagnose hypertension in detail. We will also assess the clinical evidence to evaluate the role of nebivolol in the management of elevated central systolic BP. Central BP indices offer better estimation of BP in central arteries and should be considered in routine clinical practice. Nebivolol has shown significant reduction in aortic pressure and wave reflection and improvements in endothelial dysfunction and arterial stiffness in hypertensive patients.
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(427) Could depression be a causative factor in the development of CRPS types I? THE JOURNAL OF PAIN 2017. [DOI: 10.1016/j.jpain.2017.02.277] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Pharmacogenetic Association Between Glutamatergic Genes and Sri Treatment Response in Obsessive Compulsive Disorder. Eur Psychiatry 2017. [DOI: 10.1016/j.eurpsy.2017.01.1886] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
IntroductionPharmacogenetic studies in obsessive-compulsive disorder (OCD) primarily focussing on serotonergic and dopaminergic polymorphisms, provided inconsistent findings. There is recent evidence for glutamatergic abnormalities in OCD.AimsExamine the association glutamatergic genes with serotonin reuptake inhibitor (SRI) response in OCD.ObjectivesTo study pharmacogenetic association between SLC1A1 and GRIN2B polymorphisms with SRI response in OCD.MethodsDSM-IV OCD patients were recruited from a specialty OCD clinic and evaluated using the Yale-Brown obsessive compulsive scale (YBOCS), Mini International Neuropsychiatric Interview (MINI) plus, Clinical Global Impression scale (CGI). They were subsequently reassessed with YBOCS and CGI. To study extreme phenotypes, we included only full responders (> 35% YBOCS improvement and CGI-I score of 1 or 2) to any SRI (n = 191) and non-responders (< 25% YBOCS improvement and CGI-I score ≥ 4) to adequate trial of at least two SRIs (n = 84). Partial responders were excluded. Genotyping was performed using an ABI9700 PCR machine.ResultsGenotype frequencies did not deviate significantly from the values predicted by the Hardy-Weinberg equation. Case-control association analyses revealed no significant association between genotype/allele frequencies with SRI response.ConclusionOur data does not show any association between polymorphisms in glutamatergic genes and SRI response in OCD though such associations have been found in other studies. More SNP's in the same gene could be responsible for the pharmacogenetic associations. More homogenous sample considering symptom dimensions and other phenotypic variables may be needed. It may be critical to go beyond “usual suspect” candidate gene research. In this regard, a novel approach to identify SRI response biomarkers is the use of cellular models.Disclosure of interestThe authors have not supplied their declaration of competing interest.
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Identification and Characterization of microRNAs Associated With Human β-Cell Loss in a Mouse Model. Am J Transplant 2017; 17:992-1007. [PMID: 27700000 DOI: 10.1111/ajt.14073] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2016] [Revised: 09/09/2016] [Accepted: 09/27/2016] [Indexed: 01/25/2023]
Abstract
Currently there is no effective approach for monitoring early β-cell loss during islet graft rejection following human islet transplantation (HIT). Due to ethical and technical constraints, it is difficult to directly study biomarkers of islet destruction in humans. Here, we established a humanized mouse model with induced human β-cell death using adoptive lymphocyte transfer (ALT). Human islet grafts of ALT-treated mice had perigraft lymphocyte infiltration, fewer insulin+ β cells, and increased β-cell apoptosis. Islet-specific miR-375 was used to validate our model, and expression of miR-375 was significantly decreased in the grafts and increased in the circulation of ALT-treated mice before hyperglycemia. A NanoString expression assay was further used to profile 800 human miRNAs in the human islet grafts, and the results were validated using quantitative real-time polymerase chain reaction. We found that miR-4454 and miR-199a-5p were decreased in the human islet grafts following ALT and increased in the circulation prior to hyperglycemia. These data demonstrate that our in vivo model of induced human β-cell destruction is a robust method for identifying and characterizing circulating biomarkers, and suggest that miR-4454 and miR-199a-5p can serve as novel biomarkers associated with early human β-cell loss following HIT.
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Protective effects of nebivolol from oxidative stress to prevent hypertension-related target organ damage. J Hum Hypertens 2017; 31:376-381. [PMID: 28252041 PMCID: PMC5418557 DOI: 10.1038/jhh.2017.8] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2016] [Revised: 12/15/2016] [Accepted: 12/23/2016] [Indexed: 12/28/2022]
Abstract
Hypertension is one of the leading risk factors for morbidity and mortality in patients with cardiovascular and cerebrovascular diseases and renal impairment. It also leads to target organ damage (TOD), which worsens organ function and the patient's clinical status. Reactive oxygen species (ROS)-mediated oxidative stress may contribute significantly to TOD in patients with hypertension. NO (nitric oxide) is a paracrine factor derived from endothelial cells that has been shown to alleviate ROS-mediated oxidative damage. Nebivolol is a third-generation β-blocker with vasodilator activity, both actions contributing to decreased blood pressure in hypertensive patients. Its vasodilatory function is mediated by the endothelial l-arginine NO pathway. Nebivolol increases the bioavailability of NO in the vasculature. Its efficacy and safety profile is comparable to other commonly used antihypertensive agents. In this article, we review the current literature to understand TOD secondary to oxidative stress in patients with hypertension and the role of nebivolol in its prevention. A better understanding of the underlying mechanisms by which nebivolol reduces ROS-mediated TOD will not only help in the development of targeted therapies but may also improve health outcomes in hypertensive patients.
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Transcranial magnetic stimulation of dorsolateral prefrontal cortex in chronic pain management. Brain Stimul 2017. [DOI: 10.1016/j.brs.2017.01.295] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Kidney Exchange to Overcome Financial Barriers to Kidney Transplantation. Am J Transplant 2017; 17:782-790. [PMID: 27992110 DOI: 10.1111/ajt.14106] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2016] [Revised: 10/23/2016] [Accepted: 10/24/2016] [Indexed: 01/25/2023]
Abstract
Organ shortage is the major limitation to kidney transplantation in the developed world. Conversely, millions of patients in the developing world with end-stage renal disease die because they cannot afford renal replacement therapy-even when willing living kidney donors exist. This juxtaposition between countries with funds but no available kidneys and those with available kidneys but no funds prompts us to propose an exchange program using each nation's unique assets. Our proposal leverages the cost savings achieved through earlier transplantation over dialysis to fund the cost of kidney exchange between developed-world patient-donor pairs with immunological barriers and developing-world patient-donor pairs with financial barriers. By making developed-world health care available to impoverished patients in the developing world, we replace unethical transplant tourism with global kidney exchange-a modality equally benefitting rich and poor. We report the 1-year experience of an initial Filipino pair, whose recipient was transplanted in the United states with an American donor's kidney at no cost to him. The Filipino donor donated to an American in the United States through a kidney exchange chain. Follow-up care and medications in the Philippines were supported by funds from the United States. We show that the logistical obstacles in this approach, although considerable, are surmountable.
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Abstract PD1-02: Circulating tumor DNA (ctDNA): A real-time application of precision medicine to the management of metastatic breast cancer (MBC). Cancer Res 2017. [DOI: 10.1158/1538-7445.sabcs16-pd1-02] [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: Molecular diagnostic, in particular next-generation sequencing (NGS) technologies, improved the detection of actionable mutations (muts) in MBC at baseline and recurrence. We evaluated the ability of ctDNA to detect molecular abnormalities, monitor disease progression and predict outcome.
Methods: We conducted a retrospective study of 91 patients (pts) with locally advanced and MBC, who had longitudinal assessment of their disease by ctDNA analysis. The plasma-based assay was performed utilizing Guardant360 (Guardant Health, CA), a digital NGS technology to sequence a panel of > 50 cancer genes. After tabulating number of muts and quantification of overall ctDNA detected for every patient at baseline, a receiver operating characteristic (ROC) analysis was performed to identify the best cut-offs that separated the pts who had a disease progression from those who hadn't, and the patients who died from those still alive. The overall survival (OS) analysis has been performed using Kaplan-Meier curves.
Results: 84 pts (92%) had stage IV cancer. 63% cases were ER+, 27% HER2+, 29% TNBC. 277 blood samples were collected and 84% had muts. 65% of the pts had serial samples. The average number of alterations detected in each sample was 3 (0-27) and the average ctDNA fraction detected was 4.5% (0-88.2%). The most common alterations were: TP53 (52%), PIK3CA (40%), ERBB2 (20%), NOTCH1 (15.5%), APC (14%), MET (13%). 16 pts (19%) were initiated on a targeted therapy based on ctDNA test results. At the time of analysis 36 pts (39.6%) were dead, 55 (60.4%) were currently alive. PFS was 5.2 months (ms) and OS was 21.5 ms. A statistically significant difference in PFS and OS by log rank test was found between % ctDNA at baseline < 0.5 versus ≥ 0.5 (p = 0.003 and p = 0.012, respectively) and number of muts at baseline < 2 versus ≥ 2 (p = 0.059 borderline and p = 0.0015). Moreover, a statistically significant association by Fisher's exact test was found between the number of alterations and the % ctDNA detected in the baseline sample (% of pts with muts ≥ 2 was 19% when % ctDNA < 0.5%, versus 85% when % ctDNA ≥ 0.5%; p < 0.0001).
PFS (ms) p = 0.059 (log rank test)Muts < 2 (n = 32)Muts ≥ 2 (n = 58)658%40%1230%13%1821%6%24--PFS(ms) p = 0.003 (log rank test)% ctDNA < 0.5(n = 27)% ctDNA ≥ 0.5(n = 60)665%39%1241%10%1823%6%24--
OS(ms) p = 0.002 (log rank test)Muts < 2(n = 32)Muts ≥ 2(n = 57)697%66%1288%51%1888%42%24-29%OS(ms) p = 0.012 (log rank test)% ctDNA < 0.5(n = 27)% ctDNA ≥ 0.5(n = 59)696%69%1290%55%1885%48%24-35%
Conclusions: ctDNA liquid biopsy provides a real-time, quantitative NGS-based assessment of MBC which is useful for treatment planning, disease monitoring and prognostic evaluation. Future prospective studies should consider the use of ctDNA for molecular and prognostic stratification.
Citation Format: Rossi G, Austin LK, Nagy RJ, Rademaker AW, Gradishar WJ, Santa-Maria CA, Curry-Edwards RL, Jain S, Flaum LE, Lima Barros Costa R, Zagonel V, Platanias LC, Giles FJ, Talasaz A, Cristofanilli M. Circulating tumor DNA (ctDNA): A real-time application of precision medicine to the management of metastatic breast cancer (MBC) [abstract]. In: Proceedings of the 2016 San Antonio Breast Cancer Symposium; 2016 Dec 6-10; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2017;77(4 Suppl):Abstract nr PD1-02.
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Abstract P1-05-06: Estrogen receptor 1 ( ESR1) mutations in circulating tumor DNA (ctDNA): A guide to the management of advanced breast cancer (ABC). Cancer Res 2017. [DOI: 10.1158/1538-7445.sabcs16-p1-05-06] [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: Estrogen receptor (ER)-α is expressed in about 70% of breast cancers and drugs that target the receptor function, selective estrogen receptor modulators (SERM) and aromatase inhibitors (AIs) represent the standard of care for patients (pts) with ER+ breast cancer. Nevertheless, prolonged exposure to endocrine therapy may result in acquired resistance and subsequent progression of disease. Recent evidence showed that activating mutations (muts) in the ligand-binding domain of ER-α occur in approximately 20% of pts exposed to endocrine therapies and those genomic abnormalities may represent the driver of endocrine resistance. In this context, ctDNA provides a non-invasive source for real-time next generation sequencing (NGS) studies, in order to understand the biology of ABC and guide and monitor treatment.
Methods: We conducted a retrospective review of 91 pts with ABC, including 57 pts with ER+ tumor, who had longitudinal assessment of their disease by ctDNA analysis. At the time of baseline sampling, 50/57 pts had stage IV cancer. The total number of blood samples collected was 184. 38 (67%) pts had serial samples. The average number of samples for each pt was 3 (range 1-7). The plasma-based assay was performed utilizing Guardant360 (Guardant Health, CA), a digital NGS technology to sequence a panel of > 50 cancer genes.
Results: Among the ER+ subgroup (57 pts), we identified 11 pts (19%) harboring ESR1 muts in ctDNA. All 11 pts had metastatic disease: 2 (18%) had bone metastases, 2 (18%) had visceral metastases, 7 (64%) had both sites of disease. The median age was 55 years (range 33-73). 5 pts had inflammatory breast cancer. The most common ESR1 muts were: Y537S (6/11, 55%), D538G (4/11, 36%) and Y537N (3/11, 27%). 7 pts carried polyclonal muts. At the time of testing, 10 pts had already failed at least 1 line of endocrine therapy (average 2, range 1-5), including 6 pts that had received a fulvestrant-containing regimen, 8 pts ≥ 1 line of AIs. After the mut detection, 5 pt were on endocrine therapy and 4 pts were started on/continued chemotherapy. ESR1 muts disappeared in 2 pts (fulvestrant-palbociclib and chemotherapy respectively) who achieved stable disease as best response. Three pts continued to harbour muts and then progressed (one died). 2 pts had tissue NGS and ESR1 mut was not identified. Progression free survival and overall survival were 8 months (ms) and 21.5 ms in ESR1+ subpopulation versus 6.2 ms and 22.2 ms in the ESR1- pts (p = 0.78 and p = 0.97, respectively). At the time of analysis 5 pts were dead, 6 were currently alive.
ESR1+ (n. pts) ESR1- (n. pts) Pts (total n.)1146 Previous chemotherapies11 (100%)31 (67%) Previous fulvestrant-containing regimens6 (54%)20 (43%) Previous AIs ± targeted therapy8 (73%)27 (59%)
Conclusions: We observed that ESR1 muts, a known driver of endocrine resistance, occurs at a high frequency in heavily pre-treated estrogen receptor positive ABC. Blood-based diagnostics can be used to identify ESR1 muts sometimes not detected by tissue-based sequencing of the metastatic lesions indicating tumor heterogeneity and allowing dynamic monitoring of ABC.
Citation Format: Rossi G, Lima Barros Costa R, Nagy RJ, Rademaker AW, Gradishar WJ, Santa-Maria CA, Curry-Edwards RL, Jain S, Flaum LE, Zagonel V, Platanias LC, Giles FJ, Talasaz A, Cristofanilli M. Estrogen receptor 1 (ESR1) mutations in circulating tumor DNA (ctDNA): A guide to the management of advanced breast cancer (ABC) [abstract]. In: Proceedings of the 2016 San Antonio Breast Cancer Symposium; 2016 Dec 6-10; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2017;77(4 Suppl):Abstract nr P1-05-06.
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Abstract OT2-01-19: A randomized phase II trial of fulvestrant with or without ribociclib after progression on aromatase inhibition plus cyclin-dependent kinase 4/6 inhibition in patients with unresectable or metastatic hormone receptor positive, HER2 negative breast cancer. Cancer Res 2017. [DOI: 10.1158/1538-7445.sabcs16-ot2-01-19] [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
Cyclin dependent kinase 4 and 6 inhibitors (CDK4/6i), including palbociclib and ribociclib (R), have demonstrated remarkable benefit in progression free survival (PFS) in patients (pts) with hormone receptor positive (HR+), HER2- metastatic breast cancer (MBC) when combined with anti-estrogen therapy. Switching between anti-estrogen therapies at disease progression is standard of care in the treatment of HR+ MBC. We evaluate the strategy of switching anti-estrogen therapy to fulvestrant (F) and maintaining CDK4/6 inhibition with R in pts with HR+, HER2- MBC who have progressed on an aromatase inhibitor (AI) + CDK4/6i.
Trial Design
Phase II, multi-center, randomized, double-blind, placebo-controlled trial to evaluate F +/- R in pts with HR+, HER2- MBC who have previously progressed on any AI + CDK4/6i. Pts can be screened and registered at two different time points:
Scenario 1: Before receiving any CDK4/6i
Scenario 2: At the time of progression of disease (POD) while being treated with an AI + CDK4/6i
In scenario 1, the study will provide pts with letrozole + R, but pts will not be randomized until they demonstrate POD. At randomization, pts will be assigned 1:1 to either a) F + R or b) F + placebo, with treatment given in 4-week cycles. F will be given as a 500 mg dose intramuscularly every 2 weeks for 3 times and then every 4 weeks, as per standard of care. R or placebo will be given orally at 600 mg daily, 3 weeks on/1 week off. CT scans and bone scan are to be performed prior to every third cycle. Serum and whole blood samples and optional tissue biopsies for biomarker assessment will be performed prior to study treatment (scenario 1), prior to randomization to R +/- F, and when the patient goes off study.
Main Eligibility Criteria:
1. Age ≥ 18 years with unresectable or metastatic BC
2. Estrogen and/or progesterone receptor positive, HER2 negative, as per ASCO-CAP
3. Postmenopausal status or receiving ovarian suppression
4. Measurable or unmeasurable disease; stable CNS disease allowed
5. No clinically significant cardiac disease
6. No concomitant CYP3A4/5 inducer or inhibitor
Specific Aims
Primary: Progression free survival (PFS), defined as the time from randomization to POD or death.
Secondary: Objective response rate (ORR), clinical benefit rate (CBR = ORR + stable disease rate), overall survival (OS), and duration of response. Pts in scenario 1 will also be assessed for PFS, OS, CBR, and safety while receiving AI + R (pre-randomization).
Biomarker assessment will include amplification of cyclin D1 and cyclin E, phosphoRb and TK1 expression, Rb1 and p16 loss, and ctDNA for ESR1 and PIK3CA mutations.
Target Accrual
132 pts accrued from 11 academic medical centers in the U.S, with a goal of completing accrual in two years (∼60 to 72 pts in each scenario).
Statistical Methods
Assuming a median PFS of 3.8 months with F alone, we predict that F + R will lead to a median PFS of at least 6.5 months. A one-sided log-rank test with a sample size of N=120 and alpha=0.025, achieves 80% power to detect a difference in PFS of 2.7 months. N=132 pts allows for a 10% drop-out rate.
Citation Format: Mundi PS, Codruta C, Accordino MK, Sparano J, Andreopoulou E, Vadhat LT, Tiersten A, Esteva F, O'Regan R, Jain S, Mayer I, Forero A, Crew KD, Hershman DL, Kalinsky KM. A randomized phase II trial of fulvestrant with or without ribociclib after progression on aromatase inhibition plus cyclin-dependent kinase 4/6 inhibition in patients with unresectable or metastatic hormone receptor positive, HER2 negative breast cancer [abstract]. In: Proceedings of the 2016 San Antonio Breast Cancer Symposium; 2016 Dec 6-10; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2017;77(4 Suppl):Abstract nr OT2-01-19.
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Abstract OT3-01-01: A phase II study of PD-L1 and CTLA-4 inhibition and immunopharmcogenomics in metastatic breast cancer. Cancer Res 2017. [DOI: 10.1158/1538-7445.sabcs16-ot3-01-01] [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
A hallmark of cancer is its ability to evade the immune system, however, it can be harnessed to detect and destroy cancer cells through inhibition of immune checkpoints such as CTLA-4 and PD-L1. This strategy has complementary and non-redundant mechanisms resulting in immune activation and antitumor synergy; progression free survival benefit has already been demonstrated in melanoma. A critical barrier in developing immunotherapies, however, is the identification of predictive biomarkers of response to therapy. Immunopharmacogenomic biomarkers, such as mutational burden, neoantigen profiles, and T cell receptor sequencing will elucidate the molecular interface between cancer and immune system, and may predict those most likely to benefit.
Methods
A single arm Phase II study was designed to determine the efficacy of PD-L1 and CTLA-4 inhibition and effects on immunopharmacogenomic dynamics in patients with metastatic breast cancer. The primary endpoint of this proposal is to investigate the response rate of the PD-L1 inhibitor, durvalumab, and the CTLA-4 inhibitor, tremelimumab, in metastatic breast cancer; secondary endpoints will examine the T cell receptor repertoire clonality, tumor mutational burden and neoantigen profiles. A total of 30 patients will be enrolled and treated with durvalumab 1500mg IV and tremelimumab 75mg IV monthly for 4 doses, then durvalumab 750mg every 2 weeks for 18 doses to complete 1 year of therapy with the option to renew therapy for an additional year; biopsies and blood at baseline and 2 months will be collected to assess immunopharmacogenomic biomarkers. Patients are eligible if they have triple negative or ER-positive breast cancer and have progressed on at least one line of chemotherapy and standard endocrine therapy if applicable. This is the first study to investigate immunopharmacogenomic biomarkers of response to dual checkpoint blockade in patients with metastatic breast cancer.
Citation Format: Santa-Maria CA, Jain S, Flaum L, Park J-H, Kato T, Gross L, Uthe R, Tellez C, Stein R, Rademaker A, Gradishar WJ, Nakamura Y, Giles FJ, Cristofanilli M. A phase II study of PD-L1 and CTLA-4 inhibition and immunopharmcogenomics in metastatic breast cancer [abstract]. In: Proceedings of the 2016 San Antonio Breast Cancer Symposium; 2016 Dec 6-10; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2017;77(4 Suppl):Abstract nr OT3-01-01.
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Aortic and pulmonary artery calcification: An unusual manifestation of twin-to-twin transfusion syndrome. Ann Pediatr Cardiol 2017; 10:75-77. [PMID: 28163434 PMCID: PMC5241851 DOI: 10.4103/0974-2069.197059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Twin-to-twin transfusion syndrome (TTTS) at times complicates monochorionic twin gestations, resulting in conditions ranging from discordant sizes to fetal demise of one baby. Various types of cardiac defects have been described in the recipient twin of this syndrome. Isolated great artery calcification, i.e. aortic and pulmonary artery calcification is one such uncommon condition associated with TTTS. Calcification of the walls of great vessels may be due to chronic vascular injury sustained as a result of circulatory volume overload in the recipient twin. It may also cause severe systemic hypertension and cardiomyopathy. An accurate diagnosis is important for an optimal follow-up and appropriate genetic counseling. We report a case of aortic and pulmonary artery calcification in association with TTTS.
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122: CORE: A randomised trial of COnventional care versus Radioablation (stereotactic body radiotherapy) for Extracranial oligometastases. Lung Cancer 2017. [DOI: 10.1016/s0169-5002(17)30172-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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Human rhinovirus viremia in patients hospitalized with community-acquired pneumonia. Int J Infect Dis 2016. [DOI: 10.1016/j.ijid.2016.11.259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Multi-system failure in Plasmodium vivax malaria: report of a case. ANNALS OF TROPICAL MEDICINE AND PARASITOLOGY 2016. [DOI: 10.1080/00034983.1999.11813437] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Treatment of cutaneous leishmaniasis with antimony: intramuscularversusintralesional administration. ANNALS OF TROPICAL MEDICINE AND PARASITOLOGY 2016. [DOI: 10.1080/00034983.1997.11813217] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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181
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Hysteroscopy: Role in Management of Secondary Infertility with Uterine Pathology. J Minim Invasive Gynecol 2016. [DOI: 10.1016/j.jmig.2016.08.649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Epidemiology of bacterial isolates among pediatric cancer patients from a tertiary care oncology center in North India. Indian J Cancer 2016; 51:420-4. [PMID: 26842145 DOI: 10.4103/0019-509x.175364] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND Infections are a major cause of morbidity and mortality in pediatric oncology. Resistance pattern of bacterial isolates determine empiric antibiotic therapy and influence outcome. AIMS This study was planned to determine profile of bacterial isolates and their antibiotic resistance pattern among pediatric cancer patients. DESIGN It was a retrospective, single institutional study. MATERIALS AND METHODS The study was carried out in the department of pediatric hematology-oncology of a tertiary care cancer centre in north India over a period of 24 months (2012-2014). Microbiological data pertaining to pediatric cancer patients, less than 18 yrs of age was analysed. RESULTS Hence, 238 bacterial isolates were cultured from among 1757 blood, urine and other specimens. Gram negative bacteria were the most common (74%) pathogens identified and E. coli and Klebsiella comprised 80% of them. A high incidence of extended spectrum beta lactamase producing organisms (84%), beta-lactam beta-lactamase inhibitor (78%) and carbapenem resistance was observed (29%). Blood stream infection with multi-drug resistant Klebsiella was associated with high mortality. The gram positive bacteria isolated were predominantly staphylococcus aureus and were antibiotic sensitive. Reduction in the number of culture positive isolates in the second year of our study was probably due to rigorous implementation of infection control measures. CONCLUSION These results on microbiologic profile and antibiotic sensitivity pattern of the isolates will be extremely helpful in revision of antibiotic guidelines for our patients and in developing strategies for coping with high prevalence of multi-drug resistance. Antibiotic stewardship and strict implementation of infection control practices will be important components of this effort.
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Characterization and anti-microbial susceptibility of bacterial isolates: Experience from a tertiary care cancer center in Delhi. Indian J Cancer 2016; 51:477-80. [PMID: 26842169 DOI: 10.4103/0019-509x.175305] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND Hospitalization for fever in cancer patients is associated with considerable morbidity, mortality, and cost. AIM The aim of this study was to study the bacterial spectrum and susceptibility patterns of pathogens in culture positive patients from the oncology unit of our hospital. METHODS We retrospectively reviewed the medical records of patients admitted in our cancer center (medical, radiation, and surgical oncology) from January to December 2013. Blood and respiratory secretions from the indoor patients were evaluated. RESULTS Of the total 693 samples, 76.4% were Gram-negative and 23.6% were Gram-positive. The most common bacterial isolates among Gram-negative organisms in blood were Escherichia coli, Salmonella and among the Gram-positive organism were Staphylococcus aureus and Enterococcus. Among the blood isolates extended spectrum of beta-lactamase, multidrug-resistant (carbapenem-resistant) and pan resistant bugs were seen in 47%, 15%, and 5% of the blood isolates. Among the Gram-positive organisms, 25% respiratory isolates were vancomycin-resistant Enterococci. CONCLUSION We observed a high incidence of Gram-negative isolates with clinically significant resistance to first-line antibiotics such as cephalosporin's, piperacillin tazobactum, and fluoroquinolones.
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Clinical correlation of cancer stem cells in low and high grade glioma of North Indian population. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw367.19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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High-Dose Thoracic Radiation Therapy Is Associated With Improved Survival in Metastatic Non-Small Cell Lung Cancer (NSCLC). Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.436] [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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186
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An innate immune response to intrinsic DNA damage predicts resistance to docetaxel in prostate cancer. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw372.40] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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A review of the potential of medicinal plants in the management and treatment of male sexual dysfunction. Andrologia 2016; 48:880-93. [DOI: 10.1111/and.12677] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/01/2016] [Indexed: 02/06/2023] Open
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Escherichia vulneris: an unusual cause of complicated diarrhoea and sepsis in an infant. A case report and review of literature. New Microbes New Infect 2016; 13:83-6. [PMID: 27536376 PMCID: PMC4975714 DOI: 10.1016/j.nmni.2016.07.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2016] [Revised: 06/21/2016] [Accepted: 07/01/2016] [Indexed: 11/16/2022] Open
Abstract
Escherichia vulneris is an opportunistic human pathogen. It has been primarily reported in adult patients and invasive infections have been observed in immune-suppressed individuals. This is the first report of E. vulneris causing complicated diarrhoea and sepsis in an infant. Two month old sick infant, born full-term, was admitted to the paediatrics department with loose motions and refusal to feed for four days. E. vulneris was isolated from blood in pure culture. The isolate was characterized for diarrhoeal virulence markers: heat labile and heat stable toxins (LT, ST) and hemolysin (hlyA) by PCR. The presence of LT enterotoxin and hemolysin provides strong evidence of the diarrhoeagenic potential of E. vulneris, further leading to the invasive infection triggering sepsis. As E. vulneris can lead to serious complications, an attempt should be made in clinical laboratories to identify and further characterize this new Escherichia species.
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Detection and Distribution of V1016Ikdr Mutation in the Voltage-Gated Sodium Channel Gene in Aedes aegypti (Diptera: Culicidae) Populations From Sergipe State, Northeast Brazil. JOURNAL OF MEDICAL ENTOMOLOGY 2016; 53:967-971. [PMID: 27113110 DOI: 10.1093/jme/tjw053] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2015] [Accepted: 03/23/2016] [Indexed: 06/05/2023]
Abstract
Aedes aegypti (L.) resistance to pyrethroids was recorded in Brazil few years after its introduction as the adulticide in the National Dengue Control Program campaigns. Altered susceptibility to pyrethroids had been reported in the state of Sergipe, northeast Brazil, through biological assays, even before its use against Ae. aegypti in the state. Metabolic and target-site resistance mechanisms were also revealed in samples from Aracaju, the capital of Sergipe. Herein, we investigated the presence and distribution of the kdr mutation V1016Ikdr in Ae. aegypti populations from different municipalities of the state. Aedes aegypti eggs were collected from seven municipalities located in areas showing different climatic types and infestation levels. Approximately 20 Ae. aegypti females from each municipality (total of 135 subjects) were individually submitted to allele-specific polymerase chain reaction (AS-PCR) for the 1016 site of the voltage-gated sodium channel (NaV). The V1016Ikdr mutation was found in subjects from all the municipalities under study with a high frequency of heterozygotes in several locations. Homozygous recessive subjects (resistant kdr genotype) were found only in one municipality. The results suggest a wide distribution of the V1016Ikdr mutation in the northeast Brazil, which indicates urgent need for monitoring the effectiveness of the pyrethroids currently used for vector control.
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OA2-1 Frequent and ‘burst-like’ reactivation from latency in SIVmac239M infected macaques. J Virus Erad 2016. [DOI: 10.1016/s2055-6640(20)31008-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Abstract
Farm mechanization has resulted in extensive use of wheat threshers on Indian farms. It has also increased agricultural injuries. A prospective study was undertaken for analysis of wheat thresher agricultural injuries and their remedial measures. Fifty two patients presenting with thresher injuries during the wheat harvesting season of March to June, 2003 were studied. A study-specific 14-point proforma was prepared to gather all possible information from site of injury to hospital records. Injuries were mostly of the upper limb and amputations accounted for most of these. Poor light arrangements, unskilled workers, drug / alcohol abuse, fatigue, poor designing and lack of orientation to work on these machines were the contributory factors to such injuries. The analysis emphasizes that the need of the hour is to decrease wheat thresher injuries through specific preventive approaches like improved designing, education, legislation, compensation and surveillance programmes. Asia Pac J Public Health 2005: 17(1): 36-39.
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Hepatic Subcapsular Haemorrhage: Watering-can Appearance. HONG KONG JOURNAL OF RADIOLOGY 2016. [DOI: 10.12809/hkjr1615370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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AB0013 Glomerular IL-4 Signaling Mediates Foot Process Effacement and Proteinuria in Nephrotic Syndromes. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.4376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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RM-045 Pre-operative diagnosis in pancreatic tumors-reality or myth? Ann Oncol 2016. [DOI: 10.1093/annonc/mdw201.42] [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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P-197 Surgical Emergencies in Colorectal Malignancies-Patient Profile Analysis. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw199.189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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RM-008 Intraoperative sentinel lymph node positivity by methylene blue dye and its association with other dissected lymph node by histopathological examination in colorectal cancer. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw201.08] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Design of a study to examine contact mixing and acute respiratory infection in Ballabgarh, Haryana. Int J Infect Dis 2016. [DOI: 10.1016/j.ijid.2016.02.623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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EP-1377: Consistency of cone beam CT-derived bladder volume and inflow during localized prostate cancer IMRT. Radiother Oncol 2016. [DOI: 10.1016/s0167-8140(16)32627-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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PV-0378: CBCT derived CTV-PTV margins for elective pelvic node irradiation of prostate cancer patients. Radiother Oncol 2016. [DOI: 10.1016/s0167-8140(16)31627-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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