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Gomez Cifuentes JD, Berger S, Caskey K, Jove A, Sealock R, Hair C, Velez M, Jarbrink-Sehgal M, Thrift AP, da Costa WL, Gyanprakash K. New Model to Predict Recurrence After Endoscopic Mucosal Resection of Non-pedunculated Colonic Polyps ≥ 20 mm. Dig Dis Sci 2023; 68:3935-3942. [PMID: 37548897 DOI: 10.1007/s10620-023-08054-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Accepted: 07/21/2023] [Indexed: 08/08/2023]
Abstract
BACKGROUND Polyp recurrence is common after endoscopic mucosal resection (EMR) of non-pedunculated colonic polyps ≥ 20 mm. Two models haven been published for polyp recurrence prediction: Sydney EMR recurrence tool (SERT) and the size, morphology, colonic site, and access to target (SMSA) score. None of these models have been evaluated in a real-world United States (U.S.) cohort. We aimed to evaluate the external validity of these two models and develop a new model. METHODS Retrospective cohort study of patients with non-pedunculated polyps ≥ 20 mm that underwent EMR between 1/1/2012 and 6/30/2020. Univariate and multivariate analysis were performed to identify predictors of polyp recurrence to build a new model. Receiver Operating Characteristic (ROC) curves for the new model, SERT and a modified version of SMSA were derived and compared. RESULTS A total of 461 polyps from 461 unique patients were included for analysis. The average polyp size was 29.1 ± 12.4 mm. Recurrence rate at first or second surveillance colonoscopy was 29.0% at a 15.6 months median follow up (IQR 12.3-17.4). A model was created with 4 variables from index colonoscopy: size > 40 mm, tubulovillous adenoma histology, right colon location and piecemeal resection. ROC curves showed that the Area Under the ROC (AUC) for the new model was 0.618, for SERT 0.538 and for mSMSA 0.550. CONCLUSION SERT score and mSMSA have poor external validity to predict polyp recurrence after EMR of non-pedunculated polyps > 20 mm. Our new model is simpler and performs better in this multiethnic, non-referral cohort from the U.S.
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Affiliation(s)
| | - Scott Berger
- Internal Medicine Department, Baylor College of Medicine, Houston, TX, USA.
| | | | - Andre Jove
- Baylor College of Medicine, Houston, TX, USA
| | - Robert Sealock
- Division of Gastroenterology, Baylor College of Medicine, Houston, TX, USA
| | - Clark Hair
- Division of Gastroenterology, Baylor College of Medicine, Houston, TX, USA
| | - Maria Velez
- Division of Gastroenterology, Baylor College of Medicine, Houston, TX, USA
| | | | - Aaron P Thrift
- Section of Epidemiology and Population Sciences, Department of Medicine, Baylor College of Medicine, Houston, TX, USA
- Dan L Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX, USA
| | - Wilson L da Costa
- Section of Epidemiology and Population Sciences, Department of Medicine, Baylor College of Medicine, Houston, TX, USA
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Gomez Cifuentes JD, Berger S, Caskey K, Jove A, Sealock RJ, Hair C, Velez M, Jarbrink-Sehgal M, Thrift AP, da Costa W, Gyanprakash K. Evolution of endoscopic mucosal resection (EMR) technique and the reduced recurrence of large colonic polyps from 2012 to 2020. Scand J Gastroenterol 2023; 58:435-440. [PMID: 36254785 DOI: 10.1080/00365521.2022.2134734] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND Endoscopic mucosal resection (EMR) is an effective method for removing non-pedunculated polyps ≥ 20 mm. We aimed to examine changes in EMR techniques over a 9-year period and evaluate frequency of histologic-confirmed recurrence. METHODS We identified patients who underwent EMR of non-pedunculated polyps ≥ 20 mm at a safety net and the Veteran's Affairs (VA) hospital in Houston, Texas between 2012 and 2020. Odds ratios (ORs) and 95% confidence intervals (CI) for associations with recurrence risk were estimated using multivariable logistic regression. RESULTS 461 unique patients were included. The histologic-confirmed recurrence was 29.0% at 15.6 months median follow up (IQR 12.3 - 17.4). Polyps removed between 2018 and 2020 had a 0.43 decreased odds of recurrence vs. polyps removed between 2012 and 2014. The use of viscous lifting agents increased over time (from 0 to 54%), and the use of saline was associated with increased risk of recurrence (OR 2.28 [CI 1.33 - 3.31]). CONCLUSIONS Histologic-confirmed recurrence after EMR for non-pedunculated polyps ≥ 20 mm decreased over the seven year-period. Saline was associated with a higher risk of recurrence and the use of more viscous agents increased over time.
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Affiliation(s)
| | - Scott Berger
- Internal Medicine Department, Baylor College of Medicine, Houston, TX, USA
| | | | - Andre Jove
- Baylor College of Medicine, Houston, TX, USA
| | - Robert J Sealock
- Gastroenterology Department, Baylor College of Medicine, Houston, TX, USA
| | - Clark Hair
- Gastroenterology Department, Baylor College of Medicine, Houston, TX, USA
| | - Maria Velez
- Gastroenterology Department, Baylor College of Medicine, Houston, TX, USA
| | | | - Aaron P Thrift
- Department of Medicine, Epidemiology and Population Sciences, Baylor College of Medicine, Houston, TX, USA
| | - Wilson da Costa
- Department of Medicine, Epidemiology and Population Sciences, Baylor College of Medicine, Houston, TX, USA
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Brozzi N, Napoli F, Zadneulitca N, Velez M, Sheffield C, Snipelisky D, Aleman R, Navia J, Estep J, Baran D. "SCAI Cardiogenic Shock Stages in Patients Undergoing Heart Transplantation Before and After 2018 UNOS Heart Allocation Revision". J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023] Open
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Smith J, Fell DB, Basso O, Velez M, Dayan N. Fresh Compared With Frozen Embryo Transfer and Risk of Severe Maternal Morbidity: A Study of In Vitro Fertilization Pregnancies in Ontario, Canada. J Obstet Gynaecol Can 2023; 45:202-210. [PMID: 36716961 DOI: 10.1016/j.jogc.2023.01.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 01/09/2023] [Accepted: 01/10/2023] [Indexed: 01/29/2023]
Abstract
OBJECTIVES To quantify the risk of severe maternal morbidity (SMM) in fresh versus frozen-thawed embryo transfers (ETs) among pregnancies conceived by in vitro fertilization and to assess SMM risk according to the number of fresh ETs prior to the index pregnancy. METHODS Retrospective cohort study using the provincial birth registry in Ontario, Canada. We included 13 929 individuals aged 18-55 years who conceived via in vitro fertilization between January 1, 2013, and March 5, 2018, and delivered a live or stillborn infant ≥20 weeks gestation. We compared the primary outcome, a composite of SMM or death, between fresh and frozen ETs. RESULTS A total of 174 individuals who conceived via fresh ETs had SMM (30.7 per 1000), compared with 280 among individuals who received frozen ETs (33.9 per 1000); adjusted risk ratio (aRR) 0.85 (95% CI 0.70-1.04). Compared with frozen ET, fresh ET was associated with a lower risk of severe hemorrhage (aRR 0.63; 95% CI 0.48-0.82) but no difference in risk of preeclampsia. Among individuals with 1 (n = 211) or ≥2 (n = 88) prior fresh cycles, the risk of SMM was not increased compared with having no prior cycles; aRR 0.96 (95% CI 0.78-1.18) and 0.91 (95% CI 0.67-1.25), respectively. CONCLUSION Fresh ET was associated with a lower risk of severe hemorrhage compared with frozen ET. These findings may be partly explained by the increased popularity of a freeze-all strategy, reserving fresh ETs for patients with fewer comorbidities.
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Affiliation(s)
- Julia Smith
- Department of Epidemiology, Biostatistics and Occupational Health, McGill University, Montreal, QC; Research Institute, McGill University Health Centre, Montreal, QC
| | - Deshayne B Fell
- School of Epidemiology and Public Health (SEPH), University of Ottawa, Ottawa, ON; Children's Hospital of Eastern Ontario Research Institute, Ottawa, ON
| | - Olga Basso
- Department of Epidemiology, Biostatistics and Occupational Health, McGill University, Montreal, QC; Department of Obstetrics and Gynecology, McGill University Health Centre, Montreal, QC
| | - Maria Velez
- Department of Obstetrics & Gynecology, Queen's University, Kingston, ON
| | - Natalie Dayan
- Department of Epidemiology, Biostatistics and Occupational Health, McGill University, Montreal, QC; Research Institute, McGill University Health Centre, Montreal, QC.
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Amaya LM, Campos R, Urrego R, Velez M, Torres V. 209 Supplementation of the. Reprod Fertil Dev 2022. [DOI: 10.1071/rdv35n2ab209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
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6
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Mir M, Velez M, Proud KD. A 64-Year-Old Woman With Shock and Right Atrial Thrombus. Chest 2022; 162:e317-e319. [PMID: 36494132 DOI: 10.1016/j.chest.2022.01.074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 12/06/2021] [Accepted: 01/09/2022] [Indexed: 12/12/2022] Open
Affiliation(s)
- Mahnoor Mir
- University of Texas Health San Antonio, San Antonio, TX.
| | - Maria Velez
- University of Texas Health San Antonio, San Antonio, TX
| | - Kevin D Proud
- University of Texas Health San Antonio, San Antonio, TX; South Texas Veterans Health Care System, San Antonio, TX
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7
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Joslyn P, Rosenbaum C, Chapple AG, Heard A, Velez M, Barkemeyer B. The effects of maternal hypertension on the early neonatal platelet count. J Perinatol 2022; 42:796-802. [PMID: 34845295 DOI: 10.1038/s41372-021-01278-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 10/25/2021] [Accepted: 11/10/2021] [Indexed: 11/09/2022]
Abstract
OBJECTIVE To examine the relationship between maternal hypertension and early neonatal platelet counts. STUDY DESIGN This single site retrospective cohort study compared initial platelet counts in the first day of life of infants born to mothers with preeclampsia with severe features (PSF) (n = 224) and infants born to normotensive mothers using multivariable logistic and Quasi-Poisson regression models. RESULT There was no statistical difference in initial platelet counts or likelihood of thrombocytopenia (aOR = 1.19, 95% CI 0.68-2.08) between infants born to mothers with PSF and infants born to normotensive mothers after multivariable adjustment. Initial platelet counts and thrombocytopenia risk were unaffected by the presence of maternal end organ dysfunction. Small for gestational age (SGA) status was the most significant risk factor for the development of thrombocytopenia (aOR = 2.24, 95% CI 1.13-4.30). CONCLUSION Maternal PSF does not directly affect neonatal initial platelet counts. SGA status confers the greatest risk of early thrombocytopenia.
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Affiliation(s)
- Peter Joslyn
- Department of Pediatrics Division of Neonatology, Louisiana State University Health Sciences Center New Orleans, New Orleans, LA, USA.
| | - Cornelius Rosenbaum
- Biostatistics Program, School of Public Health, Louisiana State University Health Sciences Center New Orleans, New Orleans, LA, USA
| | - Andrew G Chapple
- Biostatistics Program, School of Public Health, Louisiana State University Health Sciences Center New Orleans, New Orleans, LA, USA
| | - Asha Heard
- Department of Obstetrics and Gynecology Division of Maternal Fetal Medicine, Louisiana State University Health Sciences Center New Orleans, New Orleans, LA, USA
| | - Maria Velez
- Department of Pediatrics Division of Hematology Oncology, Louisiana State University Health Sciences Center New Orleans, New Orleans, LA, USA
| | - Brian Barkemeyer
- Department of Pediatrics Division of Neonatology, Louisiana State University Health Sciences Center New Orleans, New Orleans, LA, USA
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Somasundaram A, Cillo AR, Lampenfeld C, Workman CJ, Kunning S, Oliveri LN, Velez M, Joyce S, Calderon M, Dadey R, Rajasundaram D, Normolle DP, Watkins SC, Herman JG, Kirkwood JM, Lipson EJ, Ferris RL, Bruno TC, Vignali DAA. Systemic immune dysfunction in cancer patients driven by IL6 induction of LAG3 in peripheral CD8+ T cells. Cancer Immunol Res 2022; 10:885-899. [PMID: 35587532 DOI: 10.1158/2326-6066.cir-20-0736] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 06/10/2021] [Accepted: 05/17/2022] [Indexed: 11/16/2022]
Abstract
Many cancer patients do not develop a durable response to the current standard of care immunotherapies, despite substantial advances in targeting immune inhibitory receptors. A potential compounding issue, which may serve as an unappreciated, dominant resistance mechanism, is an inherent systemic immune dysfunction that is often associated with advanced cancer. Minimal response to inhibitory receptor (IR) blockade therapy and increased disease burden have been associated with peripheral CD8+ T-cell dysfunction, characterized by suboptimal T-cell proliferation and chronic expression of IRs (eg. Programmed Death 1 [PD1] and Lymphocyte Activation Gene 3 [LAG3]). Here, we demonstrated that approximately a third of cancer patients analyzed in this study have peripheral CD8+ T cells that expressed robust intracellular LAG3 (LAG3IC), but not surface LAG3 (LAG3SUR) due to A Disintegrin and Metalloproteinase domain-containing protein 10 (ADAM10) cleavage. This associated with poor disease prognosis and decreased CD8+ T-cell function, which could be partially reversed by anti-LAG3. Systemic immune dysfunction was restricted to CD8+ T cells, including, in some cases, a high percentage of peripheral naïve CD8+ T cells, and was driven by the cytokine IL6 via STAT3. These data suggest that additional studies are warrented to determine if the combination of increased LAG3IC in peripheral CD8+ T cells and elevated systemic IL6 can serve as predictive biomarkers and identify which cancer patients may benefit from LAG3 blockade.
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Affiliation(s)
| | | | | | | | | | | | - Maria Velez
- University of Pittsburgh, Pittsburgh, PA, United States
| | - Sonali Joyce
- University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, United States
| | - Michael Calderon
- University of Pittsburgh Medical Center, Pittsburgh, PA, United States
| | - Rebekah Dadey
- University of Pittsburgh, Pittsburgh, PA, United States
| | | | | | | | | | | | - Evan J Lipson
- Johns Hopkins University School of Medicine, BALTIMORE, MD, United States
| | - Robert L Ferris
- University of Pittsburgh Cancer Institute, Pittsburgh, PA, United States
| | - Tullia C Bruno
- University of Colorado Boulder, Pittsburgh, PA, United States
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9
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Fine A, Dayan N, Djerboua M, Pudwell J, Fell D, Vigod S, Ray J, Velez M. Attention Deficit Hyperactivity Disorder in Children Born to Patients with Infertility: A Population-Based Cohort Study. Journal of Obstetrics and Gynaecology Canada 2022. [DOI: 10.1016/j.jogc.2022.02.041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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10
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Brozzi N, Aleman R, Patel S, Velez M, Sheffield C, Perez-Balzan J, Noguera E, Snipelisky D, Montero O, Navia J. Post-Market Approval Experience with Impella 5.5 Trans-Aortic Valve Axial Flow Pump. J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.1527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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11
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Aleman R, Patel S, Rosenthal R, Sheffield C, Velez M, Balzan J, Montero O, Navia J, Brozzi N. A Novel Paradigm: Application of Extracorporeal Transvalvular Axial-Flow Pumps to Support Advanced Heart Failure Patients Undergoing Abdominal Surgery. J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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12
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Jiao L, Kourkoumpetis T, Hutchinson D, Ajami NJ, Hoffman K, White DL, Graham DY, Hair C, Shah R, Kanwal F, Jarbrink-Sehgal M, Husain N, Hernaez R, Hou J, Cole R, Velez M, Ketwaroo G, Kramer J, El-Serag HB, Petrosino JF. Spatial Characteristics of Colonic Mucosa-Associated Gut Microbiota in Humans. Microb Ecol 2022; 83:811-821. [PMID: 34223947 DOI: 10.1007/s00248-021-01789-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Accepted: 06/07/2021] [Indexed: 06/13/2023]
Abstract
Limited data exist on the spatial distribution of the colonic bacteria in humans. We collected the colonic biopsies from five segments of 27 polyp-free adults and collected feces from 13 of them. We sequenced the V4 region of the bacterial 16S rRNA gene using the MiSeq platform. The sequencing data were assigned to the amplicon sequence variant (ASV) using SILVA. Biodiversity and the relative abundance of the ASV were compared across the colonic segments and between the rectal and fecal samples. Bacterial functional capacity was assessed using Tax4fun. Each individual had a unique bacterial community composition (Weighted Bray-Curtis P value = 0.001). There were no significant differences in richness, evenness, community composition, and the taxonomic structure across the colon segments in all the samples. Firmicutes (47%), Bacteroidetes (39%), and Proteobacteria (6%) were the major phyla in all segments, followed by Verrucomicrobia, Fusobacteria, Desulfobacterota, and Actinobacteria. There were 15 genera with relative abundance > 1%, including Bacteroides, Faecalibacterium, Escherichia/Shigella, Sutterella, Akkermansia, Parabacteroides, Prevotella, Lachnoclostridium, Alistipes, Fusobacterium, Erysipelatoclostridium, and four Lachnospiraceae family members. Intra-individually, the community compositional dissimilarity was the greatest between the cecum and the rectum. There were significant differences in biodiversity and the taxonomic structure between the rectal and fecal bacteria. The bacterial community composition and structure were homogeneous across the large intestine in adults. The inter-individual variability of the bacteria was greater than inter-segment variability. The rectal and fecal bacteria differed in the community composition and structure.
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Affiliation(s)
- Li Jiao
- Section of Gastroenterology and Hepatology, Department of Medicine, Baylor College of Medicine, Houston, TX, 77030, USA.
- Center for Innovations in Quality, Effectiveness and Safety (IQuESt), Michael E. DeBakey VA Medical Center, Houston, TX, 77030, USA.
- Texas Medical Center Digestive Disease Center, Houston, TX, 77030, USA.
- Dan L Duncan Cancer Center, Baylor College of Medicine, Houston, TX, 77030, USA.
- Center for Translational Research On Inflammatory Diseases (CTRID), Michael E. DeBakey VA Medical Center, Houston, TX, 77030, USA.
| | - Themistoklis Kourkoumpetis
- Section of Gastroenterology and Hepatology, Department of Medicine, Baylor College of Medicine, Houston, TX, 77030, USA
| | - Diane Hutchinson
- The Alkek Center for Metagenomics and Microbiome Research, Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, TX, 77030, USA
| | - Nadim J Ajami
- The Alkek Center for Metagenomics and Microbiome Research, Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, TX, 77030, USA
| | - Kristi Hoffman
- The Alkek Center for Metagenomics and Microbiome Research, Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, TX, 77030, USA
| | - Donna L White
- Center for Innovations in Quality, Effectiveness and Safety (IQuESt), Michael E. DeBakey VA Medical Center, Houston, TX, 77030, USA
- Texas Medical Center Digestive Disease Center, Houston, TX, 77030, USA
- Dan L Duncan Cancer Center, Baylor College of Medicine, Houston, TX, 77030, USA
- Center for Translational Research On Inflammatory Diseases (CTRID), Michael E. DeBakey VA Medical Center, Houston, TX, 77030, USA
| | - David Y Graham
- Section of Gastroenterology and Hepatology, Department of Medicine, Baylor College of Medicine, Houston, TX, 77030, USA
- Texas Medical Center Digestive Disease Center, Houston, TX, 77030, USA
| | - Clark Hair
- Section of Gastroenterology and Hepatology, Department of Medicine, Baylor College of Medicine, Houston, TX, 77030, USA
- Texas Medical Center Digestive Disease Center, Houston, TX, 77030, USA
| | - Rajesh Shah
- Section of Gastroenterology and Hepatology, Department of Medicine, Baylor College of Medicine, Houston, TX, 77030, USA
- Texas Medical Center Digestive Disease Center, Houston, TX, 77030, USA
| | - Fasiha Kanwal
- Section of Gastroenterology and Hepatology, Department of Medicine, Baylor College of Medicine, Houston, TX, 77030, USA
- Texas Medical Center Digestive Disease Center, Houston, TX, 77030, USA
| | - Maria Jarbrink-Sehgal
- Section of Gastroenterology and Hepatology, Department of Medicine, Baylor College of Medicine, Houston, TX, 77030, USA
- Texas Medical Center Digestive Disease Center, Houston, TX, 77030, USA
| | - Nisreen Husain
- Section of Gastroenterology and Hepatology, Department of Medicine, Baylor College of Medicine, Houston, TX, 77030, USA
- Texas Medical Center Digestive Disease Center, Houston, TX, 77030, USA
| | - Ruben Hernaez
- Section of Gastroenterology and Hepatology, Department of Medicine, Baylor College of Medicine, Houston, TX, 77030, USA
- Center for Innovations in Quality, Effectiveness and Safety (IQuESt), Michael E. DeBakey VA Medical Center, Houston, TX, 77030, USA
- Texas Medical Center Digestive Disease Center, Houston, TX, 77030, USA
| | - Jason Hou
- Section of Gastroenterology and Hepatology, Department of Medicine, Baylor College of Medicine, Houston, TX, 77030, USA
- Center for Innovations in Quality, Effectiveness and Safety (IQuESt), Michael E. DeBakey VA Medical Center, Houston, TX, 77030, USA
- Texas Medical Center Digestive Disease Center, Houston, TX, 77030, USA
| | - Rhonda Cole
- Section of Gastroenterology and Hepatology, Department of Medicine, Baylor College of Medicine, Houston, TX, 77030, USA
| | - Maria Velez
- Section of Gastroenterology and Hepatology, Department of Medicine, Baylor College of Medicine, Houston, TX, 77030, USA
| | - Gyanprakash Ketwaroo
- Section of Gastroenterology and Hepatology, Department of Medicine, Baylor College of Medicine, Houston, TX, 77030, USA
- Texas Medical Center Digestive Disease Center, Houston, TX, 77030, USA
| | - Jennifer Kramer
- Section of Gastroenterology and Hepatology, Department of Medicine, Baylor College of Medicine, Houston, TX, 77030, USA
- Center for Innovations in Quality, Effectiveness and Safety (IQuESt), Michael E. DeBakey VA Medical Center, Houston, TX, 77030, USA
- Texas Medical Center Digestive Disease Center, Houston, TX, 77030, USA
| | - Hashem B El-Serag
- Section of Gastroenterology and Hepatology, Department of Medicine, Baylor College of Medicine, Houston, TX, 77030, USA
- Center for Innovations in Quality, Effectiveness and Safety (IQuESt), Michael E. DeBakey VA Medical Center, Houston, TX, 77030, USA
- Texas Medical Center Digestive Disease Center, Houston, TX, 77030, USA
- Dan L Duncan Cancer Center, Baylor College of Medicine, Houston, TX, 77030, USA
| | - Joseph F Petrosino
- Texas Medical Center Digestive Disease Center, Houston, TX, 77030, USA
- Dan L Duncan Cancer Center, Baylor College of Medicine, Houston, TX, 77030, USA
- The Alkek Center for Metagenomics and Microbiome Research, Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, TX, 77030, USA
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Joslyn P, Velez M, Roberts O, Knecht M, Prasad P, Robichaux J, Bauchat A, Surcouf J. Seizures in a Term Newborn. Neoreviews 2022; 23:e36-e39. [PMID: 34970659 DOI: 10.1542/neo.23-1-e36] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Affiliation(s)
| | - Maria Velez
- Division of Hematology/Oncology, Department of Pediatrics, Louisiana State University Health Sciences Center, New Orleans, LA
| | - Oritsejolomi Roberts
- Department of Neurosurgery, Louisiana State University Health Sciences Center, New Orleans, LA
| | | | - Pinki Prasad
- Division of Hematology/Oncology, Department of Pediatrics, Louisiana State University Health Sciences Center, New Orleans, LA
| | - Jared Robichaux
- Department of Neurosurgery, Louisiana State University Health Sciences Center, New Orleans, LA
| | - Andrea Bauchat
- Department of Pediatrics, Division of Hematology/Oncology, Emory University Atlanta, GA
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14
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Rodrigues J, Velez M. Tornar-se mãe de um segundo filho: O momento do nascimento. Rev Enf Ref 2021. [DOI: 10.12707/rv21002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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15
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Sá F, Velez M. O cuidado à família no serviço de urgência: A experiência vivida do enfermeiro. Rev Enf Ref 2021. [DOI: 10.12707/rv21007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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16
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Qureshi TM, Chai C, Hair C, Velez M, Jarbrink-Sehgal ME, Ketwaroo GA. S2502 The Successful Use of Endoscopic Vacuum Therapy for Repair of Rectal Perforation After Prostatectomy. Am J Gastroenterol 2021; 116:S1056-S1056. [DOI: 10.14309/01.ajg.0000783540.92726.8f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
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Zandberg DP, Menk AV, Velez M, Normolle D, DePeaux K, Liu A, Ferris RL, Delgoffe GM. Tumor hypoxia is associated with resistance to PD-1 blockade in squamous cell carcinoma of the head and neck. J Immunother Cancer 2021; 9:e002088. [PMID: 33986123 PMCID: PMC8126285 DOI: 10.1136/jitc-2020-002088] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/14/2021] [Indexed: 02/04/2023] Open
Abstract
The majority of patients with recurrent/metastatic squamous cell carcinoma of the head and neck (HNSCC) (R/M) do not benefit from anti-PD-1 therapy. Hypoxia induced immunosuppression may be a barrier to immunotherapy. Therefore, we examined the metabolic effect of anti-PD-1 therapy in a murine MEER HNSCC model as well as intratumoral hypoxia in R/M patients. In order to characterize the tumor microenvironment in PD-1 resistance, a MEER cell line was created from the parental line that are completely resistant to anti-PD-1. These cell lines were then metabolically profiled using seahorse technology and injected into C57/BL6 mice. After tumor growth, mice were pulsed with pimonidazole and immunofluorescent imaging was performed to analyze hypoxia and T cell infiltration. To validate the preclinical results, we analyzed tissues from R/M patients (n=36) treated with anti-PD-1 mAb, via immunofluorescent imaging for number of CD8+ T cells (CD8), Tregs and the percent area (CAIX) and mean intensity (I) of carbonic anhydrase IX in tumor. We analyzed disease control rate (DCR), progression free survival (PFS), and overall survival (OS) using proportional odds and proportional hazards (Cox) regression. We found that anti-PD-1 resistant MEER has significantly higher oxidative metabolism, while there was no difference in glycolytic metabolism. Intratumoral hypoxia was significantly increased and CD8+ T cells decreased in anti-PD-1 resistant tumors compared with parental tumors in the same mouse. In R/M patients, lower tumor hypoxia by CAIX/I was significantly associated with DCR (p=0.007), PFS, and OS, and independently associated with response (p=0.028) and PFS (p=0.04) in a multivariate model including other significant immune factors. During PD-1 resistance, tumor cells developed increased oxidative metabolism leading to increased intratumoral hypoxia and a decrease in CD8+ T cells. Lower tumor hypoxia was independently associated with increased efficacy of anti-PD-1 therapy in patients with R/M HNSCC. To our knowledge this is the first analysis of the effect of hypoxia in this patient population and highlights its importance not only as a predictive biomarker but also as a potential target for therapeutic intervention.
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Affiliation(s)
| | - Ashley V Menk
- Tumor Microenvironment Center, UPMC Hillman Cancer Center, Pittsburgh, PA, USA
| | - Maria Velez
- UPMC Hillman Cancer Center, Pittsburgh, PA, USA
| | | | - Kristin DePeaux
- Tumor Microenvironment Center, UPMC Hillman Cancer Center, Pittsburgh, PA, USA
- Immunology, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Angen Liu
- UPMC Hillman Cancer Center, Pittsburgh, PA, USA
| | - Robert L Ferris
- UPMC Hillman Cancer Center, Pittsburgh, PA, USA
- Tumor Microenvironment Center, UPMC Hillman Cancer Center, Pittsburgh, PA, USA
| | - Greg M Delgoffe
- Tumor Microenvironment Center, UPMC Hillman Cancer Center, Pittsburgh, PA, USA
- Immunology, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
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Richmond E, Ray J, Pudwell J, Djerboua M, Gaudet L, Walker M, Smith G, Velez M. Understanding caesarean delivery in women with subfertility and infertility treatment using the Robson classification: a population-based cohort study. Journal of Obstetrics and Gynaecology Canada 2021. [DOI: 10.1016/j.jogc.2021.02.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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19
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Rushton M, Pudwell J, Wei S, Richardson H, Velez M. Reproductive outcomes in young breast cancer survivors treated (15–39) in Ontario, Canada: a population-based study. Breast 2021. [DOI: 10.1016/s0960-9776(21)00240-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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20
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Perez Villa B, Wilson S, Sheffield C, Brozzi N, Navas V, Velez M, Cubeddu R, Iannotti J, Splinder K, Sosic E, Navia J, Hernandez-Montfort J. Patient Reported Outcomes Measures in Advanced Heart Failure Patients. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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21
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Hanna N, Leung K, Hernandez L, Sleiman J, Ruiz DM, Perez E, Sarkar A, Nimmagadda M, Heller E, Camargo AL, Zandiyeh M, Madison J, Alvarez A, Shriver A, Sabatino D, Schtupak N, Verghese D, Sheffield C, Brozzi N, Hakemi E, Noguera E, Cudemus G, Fermin L, Minear S, Velez M, Navas V, Cubeddu R, Navia J, Hernandez-Montfort J. Bridge to Remission in Biventricular Cardiogenic Shock Associated with Endocrine Cardiomyopathy. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.1296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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22
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Sá F, Henriques M, Velez M. A presença da fenomenologia na investigação em enfermagem: mapeamento das teses de doutoramento em Portugal. Rev Enf Ref 2019. [DOI: 10.12707/riv19038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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23
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Katerji R, Mulford D, Velez M. P1.09-25 The Use of In-Situ RNA Analysis in the Detection of Metastatic HPV Mediated Squamous Cell Carcinoma to the Lung with p16 Correlation. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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24
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Sanchez P, Velez M. DOWN THE CRAZY PAVED ROAD. Chest 2019. [DOI: 10.1016/j.chest.2019.08.1082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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25
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Liu Y, Ajami NJ, El-Serag HB, Hair C, Graham DY, White DL, Chen L, Wang Z, Plew S, Kramer J, Cole R, Hernaez R, Hou J, Husain N, Jarbrink-Sehgal ME, Kanwal F, Ketwaroo G, Natarajan Y, Shah R, Velez M, Mallepally N, Petrosino JF, Jiao L. Dietary quality and the colonic mucosa-associated gut microbiome in humans. Am J Clin Nutr 2019; 110:701-712. [PMID: 31291462 PMCID: PMC6736447 DOI: 10.1093/ajcn/nqz139] [Citation(s) in RCA: 68] [Impact Index Per Article: 13.6] [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: 03/19/2019] [Accepted: 06/11/2019] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Despite tremendous interest in modulating the microbiome to improve health, the association between diet and the colonic mucosa-associated gut microbiome in healthy individuals has not been examined. OBJECTIVE To investigate the associations between Healthy Eating Index (HEI)-2005 and the colonic mucosa-associated microbiota. METHODS In this cross-sectional observational study, we analyzed bacterial community composition and structure using 16S rRNA gene (V4 region) sequencing of 97 colonic mucosal biopsies obtained endoscopically from different colon segments of 34 polyp-free participants. Dietary consumption was ascertained using an FFQ. Differences in α- and β-diversity and taxonomic relative abundances between the higher and lower score of total HEI and its components were compared, followed by multivariable analyses. RESULTS The structure of the microbiota significantly differed by the scores for total HEI, total and whole fruits (HEI 1 and HEI 2), whole grains (HEI 6), milk products and soy beverages (HEI 7), and solid fat, alcohol, and added sugar (HEI 12). A lower score for total HEI and HEIs 2, 7, and 12 was associated with significantly lower richness. A lower score for total HEI was associated with significantly reduced relative abundance of Parabacteroides, Roseburia, and Subdoligranulum but higher Fusobacterium. A lower score for HEI 2 was associated with lower Roseburia but higher Bacteroides. A lower score for HEI 7 was associated with lower Faecalibacterium and Fusobacterium but higher Bacteroides. A lower score for HEI 12 was associated with lower Subdoligranulum but higher Escherichia and Fusobacterium (false discovery rate-adjusted P values <0.05). The findings were confirmed by multivariate analysis. Less abundant bacteria such as Alistipes, Odoribacter, Bilophila, and Tyzzerella were also associated with dietary quality. CONCLUSIONS A lower score for total HEI-2005 was significantly associated with reduced relative abundance of potentially beneficial bacteria but increased potentially harmful bacteria in the colonic mucosa of endoscopically normal individuals.
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Affiliation(s)
- Yanhong Liu
- Department of Medicine, Baylor College of Medicine (BCM), Houston, TX, USA,Dan L Duncan Comprehensive Cancer Center, BCM, Houston, TX, USA
| | - Nadim J Ajami
- The Alkek Center for Metagenomics and Microbiome Research, Department of Molecular Virology and Microbiology, BCM, Houston, TX, USA
| | - Hashem B El-Serag
- Department of Medicine, Baylor College of Medicine (BCM), Houston, TX, USA,Dan L Duncan Comprehensive Cancer Center, BCM, Houston, TX, USA,Section of Gastroenterology, Michael E DeBakey Veterans Affairs Medical Center (MEDVAMC), Houston, TX, USA,Houston VA HSR&D Center for Innovations in Quality, Effectiveness, and Safety, MEDVAMC, Houston, TX, USA,Texas Medical Center Digestive Disease Center, Houston, TX, USA
| | - Clark Hair
- Department of Medicine, Baylor College of Medicine (BCM), Houston, TX, USA,Section of Gastroenterology, Michael E DeBakey Veterans Affairs Medical Center (MEDVAMC), Houston, TX, USA
| | - David Y Graham
- Department of Medicine, Baylor College of Medicine (BCM), Houston, TX, USA,Section of Gastroenterology, Michael E DeBakey Veterans Affairs Medical Center (MEDVAMC), Houston, TX, USA,Texas Medical Center Digestive Disease Center, Houston, TX, USA
| | - Donna L White
- Department of Medicine, Baylor College of Medicine (BCM), Houston, TX, USA,Dan L Duncan Comprehensive Cancer Center, BCM, Houston, TX, USA,Houston VA HSR&D Center for Innovations in Quality, Effectiveness, and Safety, MEDVAMC, Houston, TX, USA,Texas Medical Center Digestive Disease Center, Houston, TX, USA,Center for Translational Research on Translational Disease, MEDVAMC, Houston, TX, USA
| | - Liang Chen
- Department of Medicine, Baylor College of Medicine (BCM), Houston, TX, USA,Houston VA HSR&D Center for Innovations in Quality, Effectiveness, and Safety, MEDVAMC, Houston, TX, USA
| | - Zhensheng Wang
- Department of Medicine, Baylor College of Medicine (BCM), Houston, TX, USA
| | - Sarah Plew
- Department of Medicine, Baylor College of Medicine (BCM), Houston, TX, USA,Houston VA HSR&D Center for Innovations in Quality, Effectiveness, and Safety, MEDVAMC, Houston, TX, USA
| | - Jennifer Kramer
- Department of Medicine, Baylor College of Medicine (BCM), Houston, TX, USA,Houston VA HSR&D Center for Innovations in Quality, Effectiveness, and Safety, MEDVAMC, Houston, TX, USA,Texas Medical Center Digestive Disease Center, Houston, TX, USA
| | - Rhonda Cole
- Department of Medicine, Baylor College of Medicine (BCM), Houston, TX, USA,Section of Gastroenterology, Michael E DeBakey Veterans Affairs Medical Center (MEDVAMC), Houston, TX, USA
| | - Ruben Hernaez
- Department of Medicine, Baylor College of Medicine (BCM), Houston, TX, USA,Section of Gastroenterology, Michael E DeBakey Veterans Affairs Medical Center (MEDVAMC), Houston, TX, USA,Houston VA HSR&D Center for Innovations in Quality, Effectiveness, and Safety, MEDVAMC, Houston, TX, USA,Texas Medical Center Digestive Disease Center, Houston, TX, USA
| | - Jason Hou
- Department of Medicine, Baylor College of Medicine (BCM), Houston, TX, USA,Section of Gastroenterology, Michael E DeBakey Veterans Affairs Medical Center (MEDVAMC), Houston, TX, USA,Houston VA HSR&D Center for Innovations in Quality, Effectiveness, and Safety, MEDVAMC, Houston, TX, USA,Texas Medical Center Digestive Disease Center, Houston, TX, USA
| | - Nisreen Husain
- Department of Medicine, Baylor College of Medicine (BCM), Houston, TX, USA,Section of Gastroenterology, Michael E DeBakey Veterans Affairs Medical Center (MEDVAMC), Houston, TX, USA
| | - Maria E Jarbrink-Sehgal
- Department of Medicine, Baylor College of Medicine (BCM), Houston, TX, USA,Section of Gastroenterology, Michael E DeBakey Veterans Affairs Medical Center (MEDVAMC), Houston, TX, USA
| | - Fasiha Kanwal
- Department of Medicine, Baylor College of Medicine (BCM), Houston, TX, USA,Section of Gastroenterology, Michael E DeBakey Veterans Affairs Medical Center (MEDVAMC), Houston, TX, USA,Houston VA HSR&D Center for Innovations in Quality, Effectiveness, and Safety, MEDVAMC, Houston, TX, USA,Texas Medical Center Digestive Disease Center, Houston, TX, USA
| | - Gyanprakash Ketwaroo
- Department of Medicine, Baylor College of Medicine (BCM), Houston, TX, USA,Section of Gastroenterology, Michael E DeBakey Veterans Affairs Medical Center (MEDVAMC), Houston, TX, USA
| | - Yamini Natarajan
- Department of Medicine, Baylor College of Medicine (BCM), Houston, TX, USA,Section of Gastroenterology, Michael E DeBakey Veterans Affairs Medical Center (MEDVAMC), Houston, TX, USA
| | - Rajesh Shah
- Department of Medicine, Baylor College of Medicine (BCM), Houston, TX, USA,Section of Gastroenterology, Michael E DeBakey Veterans Affairs Medical Center (MEDVAMC), Houston, TX, USA,Texas Medical Center Digestive Disease Center, Houston, TX, USA
| | - Maria Velez
- Department of Medicine, Baylor College of Medicine (BCM), Houston, TX, USA,Section of Gastroenterology, Michael E DeBakey Veterans Affairs Medical Center (MEDVAMC), Houston, TX, USA
| | | | - Joseph F Petrosino
- Dan L Duncan Comprehensive Cancer Center, BCM, Houston, TX, USA,The Alkek Center for Metagenomics and Microbiome Research, Department of Molecular Virology and Microbiology, BCM, Houston, TX, USA,Texas Medical Center Digestive Disease Center, Houston, TX, USA
| | - Li Jiao
- Department of Medicine, Baylor College of Medicine (BCM), Houston, TX, USA,Dan L Duncan Comprehensive Cancer Center, BCM, Houston, TX, USA,Section of Gastroenterology, Michael E DeBakey Veterans Affairs Medical Center (MEDVAMC), Houston, TX, USA,Houston VA HSR&D Center for Innovations in Quality, Effectiveness, and Safety, MEDVAMC, Houston, TX, USA,Texas Medical Center Digestive Disease Center, Houston, TX, USA,Center for Translational Research on Translational Disease, MEDVAMC, Houston, TX, USA,Address correspondence to LJ (E-mail: )
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26
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Hershey M, James CM, Velez M, Kanotra J, Craver R, Kanotra SP. Pediatric Tracheal Rhabdomyosarcoma Masquerading as a Granuloma. J Indian Assoc Pediatr Surg 2019; 24:212-215. [PMID: 31258274 PMCID: PMC6568162 DOI: 10.4103/jiaps.jiaps_107_18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
We describe a posterior wall intratracheal embryonal rhabdomyosarcoma (RMS) arising in a 6-year-old tracheostomized child masquerading as reactive granulation tissue and review all reported cases of pediatric intratracheal RMS. The child underwent laser debulking of the tumor and postoperative radiation and chemotherapy with no evidence of recurrence at 2-year follow-up. A literature review revealed four previous cases of pediatric primary tracheal or intratracheal RMS, and remission was achieved in all but one case with surgery, chemotherapy, and radiation. Pathologic evaluation of tracheal mucosal granulation tissue may merit consideration, particularly in patients with increased risk factors.
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Affiliation(s)
- Marcus Hershey
- Department of Otolaryngology-Head and Neck Surgery, Louisiana State University, Louisiana, USA
| | - Casie M James
- Department of Otolaryngology-Head and Neck Surgery, Louisiana State University, Louisiana, USA
| | - Maria Velez
- Section of Hematology and Oncology, Children's Hospital New Orleans, Louisiana State University, Louisiana, USA
| | - Jhanvi Kanotra
- Department of Pathology, Louisiana State University, Louisiana, USA
| | - Randall Craver
- Department of Pathology and Pediatrics, Children's Hospital New Orleans, Louisiana State University Health Science Center, Louisiana, USA
| | - Sohit Paul Kanotra
- Department of Otolaryngology-Head and Neck Surgery, Louisiana State University, Louisiana, USA.,Department of Pediatric Otolaryngology, Children's Hospital New Orleans, Louisiana, USA
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27
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Rollano V, Muñoz-Noval A, Gomez A, Valdes-Bango F, Martin JI, Velez M, Osorio MR, Granados D, Gonzalez EM, Vicent JL. Topologically protected superconducting ratchet effect generated by spin-ice nanomagnets. Nanotechnology 2019; 30:244003. [PMID: 30790770 DOI: 10.1088/1361-6528/ab0923] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
We have designed, fabricated and tested a robust superconducting ratchet device based on topologically frustrated spin ice nanomagnets. The device is made of a magnetic Co honeycomb array embedded in a superconducting Nb film. This device is based on three simple mechanisms: (i) the topology of the Co honeycomb array frustrates in-plane magnetic configurations in the array yielding a distribution of magnetic charges which can be ordered or disordered with in-plane magnetic fields, following spin ice rules; (ii) the local vertex magnetization, which consists of a magnetic half vortex with two charged magnetic Néel walls; (iii) the interaction between superconducting vortices and the asymmetric potentials provided by the Néel walls. The combination of these elements leads to a superconducting ratchet effect. Thus, superconducting vortices driven by alternating forces and moving on magnetic half vortices generate a unidirectional net vortex flow. This ratchet effect is independent of the distribution of magnetic charges in the array.
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Affiliation(s)
- V Rollano
- IMDEA-Nanociencia, Cantoblanco, E-28049 Madrid, Spain
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28
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Nguyen TV, Jutras B, Monnier P, Muckle G, Velez M, Arbuckle TE, Saint-Amour D. Prenatal masculinization of the auditory system in infants: The MIREC-ID study. Psychoneuroendocrinology 2019; 104:33-41. [PMID: 30784903 DOI: 10.1016/j.psyneuen.2019.02.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Revised: 02/05/2019] [Accepted: 02/13/2019] [Indexed: 11/30/2022]
Abstract
Sex differences in inner-ear function are detectable in infants, notably through the measurement of otoacoustic emissions (OAEs). Prevailing theories posit that prenatal exposure to high levels of androgens in boys may weaken OAEs, and that this phenomenon may predominantly affect the right ear/left hemisphere (Geschwind-Galaburda (GG) hypothesis). Yet, actual tests of these models have been difficult to implement in humans. Here we examined the relationship between markers of fetal androgen exposure collected at birth (anogenital distances (AGD); penile length/width, areolar/scrotal/vulvar pigmentation) and at 6 months of age (2nd to 4th digit ratio (2D:4D)) with two types of OAEs, click-evoked OAEs (CEOAEs) and distortion-product OAEs (DPOAEs) (n = 49; 25 boys; 24 girls). We found that, in boys, scrotal pigmentation was inversely associated with the amplitude and reproducibility of CEOAEs in the right ear at 4 kHz, with trends also present in the same ear for mean CEOAE amplitude and CEOAE amplitude at 2 kHz. Penile length was inversely associated with the mean amplitude of DPOAEs in both the right and left ears, as well as with DPOAE amplitude in the right ear at 2 kHz and the reproducibility of CEOAEs in the left ear at 2.8 kHz. Finally, AGD-scrotum in boys was positively associated in boys with the amplitude of DPOAEs in the left ear at 2.8 kHz. Unexpectedly, there were no sex differences in the amplitude or reproducibility of OAEs, nor, in girls, any associations between androgenic markers and auditory function. Nonetheless, these findings, reported for the first time in a sample of human infants, support both the prenatal-androgen-exposure and GG models as explanations for the masculinization of auditory function in male infants.
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Affiliation(s)
- Tuong-Vi Nguyen
- Department of Psychiatry, McGill University, Royal Victoria Hospital, Montreal, Canada; Department of Obstetrics & Gynecology McGill University, Royal Victoria Hospital, Montreal, Canada; Research Institute of the McGill University Health Centre [RI-MUHC), Royal Victoria Hospital, Montreal, Canada.
| | - Benoît Jutras
- Research Center, CHU Sainte-Justine, Montreal, Canada; School of Speech Language Pathology and Audiology, Université de Montréal, Montréal, Canada
| | - Patricia Monnier
- Department of Obstetrics & Gynecology McGill University, Royal Victoria Hospital, Montreal, Canada; Research Institute of the McGill University Health Centre [RI-MUHC), Royal Victoria Hospital, Montreal, Canada
| | - Gina Muckle
- School of Psychology, Laval University, Quebec CHU Research Centre, Quebec City, Canada
| | - Maria Velez
- Department of Obstetrics & Gynecology, Queen's University, Kingston, Ontario, Canada
| | - Tye E Arbuckle
- Population Studies Division, Environmental Health Science and Research Bureau, Health Canada, Ottawa Canada
| | - Dave Saint-Amour
- Research Center, CHU Sainte-Justine, Montreal, Canada; Department of Psychology, Université du Québec à Montréal, Montréal, Canada
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Sabr Y, Lisonkova S, Skoll A, Brant R, Velez M, Joseph KS. EPIDEMIOLOGIC CHARACTERIZATION OF SEVERE MATERNAL MORBIDITY AND MORTALITY ASSOCIATED WITH ASSISTED REPRODUCTION. Journal of Obstetrics and Gynaecology Canada 2019. [DOI: 10.1016/j.jogc.2019.02.232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Sabr Y, Lisonkova S, Skoll A, Brant R, Velez M, Joseph K. 737: Severe maternal morbidity and mortality associated with assisted reproduction: A population-based study. Am J Obstet Gynecol 2019. [DOI: 10.1016/j.ajog.2018.11.760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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31
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Liu Y, Ajami NJ, Hutchinson D, Graham D, Plew S, Johnson A, Shah P, Chen L, Royse K, White DL, Kramer J, Wong MC, Cole R, Hair C, Hou J, Husain N, Jarbrink-Sehgal M, Kanwal F, Ketwaroo G, Shah R, Velez M, Bondy ML, El-Serag HB, Petrosino JF, Jiao L. Abstract 3265: Healthy eating index 2005 and the mucosa associated gut microbiome in healthy individuals. Cancer Res 2018. [DOI: 10.1158/1538-7445.am2018-3265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Diet is a modifiable risk factor for multiple cancers. It is also known to modulate gut microbial composition and metabolic activity, and plays an important role in maintaining gut homeostasis. However, our understanding of dietary quality and mucosa-associated microbiota in the large intestine in humans is limited. We examined the association between diet quality and gut microbiota in adults underwent routine colonoscopy in a cross-sectional study. Methods: We enrolled 21 men (50-75 years old, 71% White) who were found to have grossly normal colons at colonoscopy completed between July 2013 and April 2016. We obtained 98 colonic mucosa biopsies, with microbial DNA extracted from snap frozen biopsy. The 16S rRNA V4 region was amplified and sequenced on the Illumina MiSeq platform. The UPARSE and SILVA were used for operational taxonomic unit (OTU) classification. A self-administered BLOCK Food Frequency Questionnaire was used to assess dietary intake in the past year. Dietary quality was defined using the Healthy Eating Index (HEI)-2005, and further categorized as low or high using the median of total HEI or 12 individual component scores. We compared alpha-diversity (OTU and Shannon index), beta-diversity (Weighted UniFrac principal coordinates analysis), and relative abundance of bacterial phylum and genus by total HEI and all 12 individual HEI components using Mann-Whitney test. Reported P values were adjusted for multiple testing using false discovery rate. Results: The most abundant bacterial phyla observed were Firmicutes, Bacteroidetes, Proteobacteria, Verrucomicrobia, and Fusobacteria. High-quality diet (total HEI score ≥ 63) was not associated with higher richness and evenness of gut microbiome (P = 0.12), but was significantly associated with bacterial composition (P = 0.046). Compared to men who had low-quality diet (total HEI score < 63), those with high-quality diet had a higher abundance of Proteobacteria (12.2% vs. 8.1%, P = 0.006), and lower abundance of Fusobacteria (0.13% vs. 3.37%, P = 0.004). At the genus level, those with high-quality diet had significantly lower abundance of Fusobacterium than those with low-quality diet (0.11% vs. 3.77%, P = 0.004). At the HEI component level, individuals with a higher consumption of solid fruits and milk had higher richness and evenness of gut microbiome (P < 0.05) as well as higher abundance of phylum Verrucomicrobia (P < 0.05) and genus Akkermansia (P < 0.001). Consuming more solid and saturated fat, alcohol, and added sugar were associated with a higher abundance of phylum Fusobacteria (P < 0.0001) and genus Fusobacterium (P = 0.0001). Conclusions: The colonic microbiome of men consuming a low-quality diet exhibited increased levels of Fusobacteria, which has been associated with colorectal cancer risk. If replicated in prospective research, our findings suggest low quality diet may contribute to colorectal cancer by modulating gut microbiome.
Citation Format: Yanhong Liu, Nadim J. Ajami, Diane Hutchinson, David Graham, Sarah Plew, Ashley Johnson, Preksha Shah, Liang Chen, Kathryn Royse, Donna L. White, Jennifer Kramer, Matthew C. Wong, Rhonda Cole, Clark Hair, Jason Hou, Nisreen Husain, Maria Jarbrink-Sehgal, Fasiha Kanwal, Gyanprakash Ketwaroo, Rajesh Shah, Maria Velez, Melissa L. Bondy, Hashem B. El-Serag, Joseph F. Petrosino, Li Jiao. Healthy eating index 2005 and the mucosa associated gut microbiome in healthy individuals [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2018; 2018 Apr 14-18; Chicago, IL. Philadelphia (PA): AACR; Cancer Res 2018;78(13 Suppl):Abstract nr 3265.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | - Jason Hou
- Baylor College of Medicine, Houston, TX
| | | | | | | | | | | | | | | | | | | | - Li Jiao
- Baylor College of Medicine, Houston, TX
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Castrellon AB, Velez M, Raez LE, Danenberg K, Rabizadeh S, Usher J, Jaimes Y, Hunis B, Bittencourt AC, Milillo A, Blaya M, Habaue C, Danenberg PV. Abstract P2-02-16: Use of cell-free circulating RNA and expression of PD-L1 and HER2 in plasma to monitor and predict clinical response in metastatic breast cancer patients. Cancer Res 2018. [DOI: 10.1158/1538-7445.sabcs17-p2-02-16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: In addition to traditional radiology tests, cell-free circulating tumor RNA (cfRNA) extracted from plasma of cancer patients (pts) provides a means of evaluating tumor response, but based on molecular changes in the tumor. Measuring dynamic changes in gene expression and levels of total cfRNA (per ml of plasma) in metastatic patients has shown great potential for evaluating disease status and predicting outcome to anti-tumoral therapy in advance of imaging. Though checkpoint inhibitors have not been assessed widely in breast cancer, TNBC has shown mild responses to pembrozilumab and atezolizumab, with significantly better responses in pts with detectable PD-L1 expression.
Methods: Blood was drawn from pts at approximately 6-week intervals under various therapies and CT scans were performed at approximately 3-month intervals. CfRNA was extracted from the resulting plasma and reverse transcribed with random hexamers to cDNA. Levels of cfRNA were quantitated by RT-qPCR and correlated with pt response (PR/SD/PD), as determined by CT scans. Levels of gene expression in cfRNA (including PD-L1 and HER2) were monitored in pts across blood draws.
Results: A total of 28 breast cancer pts were enrolled in a 1-year clinical study. Of pts, 39% (11/28) were Caucasian and 36% (10/28) Hispanic. 19 pts completed the first two cycles of therapy: 2 pts had PR and showed no change (NC) or decrease (DEC) in levels of cfRNA, 11 pts achieved SD with 8 showing DEC or NC in cfRNA levels, and 6 pts had PD and all underwent increases (INC) in cfRNA levels (median increase: 788 ng/mL plasma) which correlated with progressive disease status. Of pts with SD/PR, 4 showed either an emergence or significant increase in PD-L1 expression across blood draws (3.7-98 ct); of PD pts, 1 showed a significant emergence of PD-L1 expression (12.5 ct) across blood draws. 3/5 of these PD-L1 expressing pts were being treated with an everolimus combination; the emergence or increase of PD-L1 in response to this therapy suggests use of checkpoint inhibitors as an option for these pts. In response to therapy, 3 of 5 pts had PD-L1 cfRNA levels above levels predictive of response to nivolumab in lung cancer pts. In the only pt with hyperexpressed HER2, the disappearance of HER2 cfRNA matched positive response (PR) to treatment with trastuzumab. PD-L1 decreased concomitantly for this pt.
Conclusion: We found a strong correlation between clinical responses and changes in plasma levels of ctRNA in breast cancer (84%). Most of these were documented several weeks before imaging was done. Levels of PD-L1 and HER2 expression in plasma can also be used to monitor pt response to specific therapies. The emergence of PD-L1 expression in response to various therapies in breast cancer may confer sensitivity to checkpoint inhibitor therapy.
Citation Format: Castrellon AB, Velez M, Raez LE, Danenberg K, Rabizadeh S, Usher J, Jaimes Y, Hunis B, Bittencourt AC, Milillo A, Blaya M, Habaue C, Danenberg PV. Use of cell-free circulating RNA and expression of PD-L1 and HER2 in plasma to monitor and predict clinical response in metastatic breast cancer patients [abstract]. In: Proceedings of the 2017 San Antonio Breast Cancer Symposium; 2017 Dec 5-9; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2018;78(4 Suppl):Abstract nr P2-02-16.
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Affiliation(s)
- AB Castrellon
- Memorial Cancer Institute, Hollywood, FL; Liquid Genomics, Inc., Culver City, CA; NantOmics, Culver City, CA; Keck School of Medicine of University of Southern California, Los Angeles, CA
| | - M Velez
- Memorial Cancer Institute, Hollywood, FL; Liquid Genomics, Inc., Culver City, CA; NantOmics, Culver City, CA; Keck School of Medicine of University of Southern California, Los Angeles, CA
| | - LE Raez
- Memorial Cancer Institute, Hollywood, FL; Liquid Genomics, Inc., Culver City, CA; NantOmics, Culver City, CA; Keck School of Medicine of University of Southern California, Los Angeles, CA
| | - K Danenberg
- Memorial Cancer Institute, Hollywood, FL; Liquid Genomics, Inc., Culver City, CA; NantOmics, Culver City, CA; Keck School of Medicine of University of Southern California, Los Angeles, CA
| | - S Rabizadeh
- Memorial Cancer Institute, Hollywood, FL; Liquid Genomics, Inc., Culver City, CA; NantOmics, Culver City, CA; Keck School of Medicine of University of Southern California, Los Angeles, CA
| | - J Usher
- Memorial Cancer Institute, Hollywood, FL; Liquid Genomics, Inc., Culver City, CA; NantOmics, Culver City, CA; Keck School of Medicine of University of Southern California, Los Angeles, CA
| | - Y Jaimes
- Memorial Cancer Institute, Hollywood, FL; Liquid Genomics, Inc., Culver City, CA; NantOmics, Culver City, CA; Keck School of Medicine of University of Southern California, Los Angeles, CA
| | - B Hunis
- Memorial Cancer Institute, Hollywood, FL; Liquid Genomics, Inc., Culver City, CA; NantOmics, Culver City, CA; Keck School of Medicine of University of Southern California, Los Angeles, CA
| | - AC Bittencourt
- Memorial Cancer Institute, Hollywood, FL; Liquid Genomics, Inc., Culver City, CA; NantOmics, Culver City, CA; Keck School of Medicine of University of Southern California, Los Angeles, CA
| | - A Milillo
- Memorial Cancer Institute, Hollywood, FL; Liquid Genomics, Inc., Culver City, CA; NantOmics, Culver City, CA; Keck School of Medicine of University of Southern California, Los Angeles, CA
| | - M Blaya
- Memorial Cancer Institute, Hollywood, FL; Liquid Genomics, Inc., Culver City, CA; NantOmics, Culver City, CA; Keck School of Medicine of University of Southern California, Los Angeles, CA
| | - C Habaue
- Memorial Cancer Institute, Hollywood, FL; Liquid Genomics, Inc., Culver City, CA; NantOmics, Culver City, CA; Keck School of Medicine of University of Southern California, Los Angeles, CA
| | - PV Danenberg
- Memorial Cancer Institute, Hollywood, FL; Liquid Genomics, Inc., Culver City, CA; NantOmics, Culver City, CA; Keck School of Medicine of University of Southern California, Los Angeles, CA
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Ragab O, Banerjee R, Park SJ, Patel S, Zhang M, Wang J, Velez M, Demanes DJ, Kamrava M. Comparison of patient-reported acute urinary and sexual toxicity scores in a 6- versus 2-fraction course of high-dose-rate prostate brachytherapy monotherapy. J Med Imaging Radiat Oncol 2017; 62:109-115. [PMID: 28856847 DOI: 10.1111/1754-9485.12648] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [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: 03/08/2017] [Accepted: 07/22/2017] [Indexed: 11/29/2022]
Abstract
INTRODUCTION To identify differences in acute urinary and sexual toxicity between a 6-fraction and 2-fraction high-dose-rate brachytherapy monotherapy regimen and correlate dosimetric constraints to short-term toxicity. METHODS A single institution retrospective study of 116 men with prostate cancer treated with HDR monotherapy from 2010 to 2015 was conducted. Eighty-one men had 7.25 Gy × 6-fractions and 35 men had 13.5 Gy × 2-fractions. Patients had two CT-planned implants spaced 1-2 weeks apart. Patient baseline characteristics, International Prostate Symptom Scores (IPSS) and Sexual Health Inventory for Men (SHIM) scores were collected pre-treatment and 3, 6 and 12 months post-implantation. Mixed effect modelling was undertaken to compare baseline, 1-6 month and 7-12 month scores between groups. Poisson regression analysis was performed to correlate dosimetric constraints with acute toxicity. RESULTS There was no difference between baseline and post-implantation IPSS scores between 6-fraction and 2-fraction groups. SHIM scores for men treated with 6-fractions had a steeper decline at 1-6 months, but resolved at 7-12 months. Pre-treatment alpha-blocker use correlated with worse short-term acute urinary toxicity. Worsened SHIM score correlated with increasing age, diabetes mellitus and androgen-deprivation therapy. In a dosimetric analysis of outcomes, prostate V150 dose and bladder wall (D01.cc, D1cc, D2cc) dose correlated with increased IPSS score. CONCLUSION No increased acute genitourinary or sexual dysfunction has been observed in men when transitioning from 6-fraction to 2-fraction HDR monotherapy. A dosimetric correlation was found between the V150 and bladder wall doses for acute urinary toxicity. Future research should continue to standardize and validate dose constraints for prostate HDR monotherapy patients.
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Affiliation(s)
- Omar Ragab
- Department of Radiation Oncology, University of Southern California, Keck School of Medicine, Los Angeles, California, USA
| | - Robyn Banerjee
- Department of Radiation Oncology, Tom Baker Cancer Center, Calgary, Alberta, USA
| | - Sang-June Park
- Department of Radiation Oncology, University of California Los Angeles, Los Angeles, California, USA
| | - Shyamal Patel
- Department of Radiation Oncology, University of Arizona Cancer Center at Dignity Health, Phoenix, Arizona, USA
| | - Mingle Zhang
- Department of Radiation Oncology, University of California Los Angeles, Los Angeles, California, USA
| | - Jason Wang
- Department of Radiation Oncology, University of California Los Angeles, Los Angeles, California, USA
| | - Maria Velez
- Department of Radiation Oncology, University of California Los Angeles, Los Angeles, California, USA
| | - David Jeffrey Demanes
- Department of Radiation Oncology, University of California Los Angeles, Los Angeles, California, USA
| | - Mitchell Kamrava
- Department of Radiation Oncology, Samuel Oschin Cancer Center, Cedars Sinai Medical Center, Los Angeles, California, USA
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Dayan N, Fell D, Velez M, Wang H, Guo Y, Spitzer K, Laskin C. Severe maternal morbidity after IVF in overweight or obese women. Fertil Steril 2017. [DOI: 10.1016/j.fertnstert.2017.07.311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Castrellon AB, Velez M, Blaya M, Barnick S, Dumais K, LeCroy N. Abstract P5-16-19: Evaluation of weekly paclitaxel plus carboplatin followed by anthracycline chemotherapy on the neoadjuvant treatment of patients with triple-negative breast cancer. Cancer Res 2017. [DOI: 10.1158/1538-7445.sabcs16-p5-16-19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background
Triple negative breast cancer (TNBC) accounts for 15 to 20 % of the invasive breast cancers. Pathological complete response (pCR) in this subgroup of breast cancer is associated with improved long term event free survival. Results from previous studies indicate that the addition of carboplatinum (Cb) to standard neoadjuvant anthracycline-taxane chemotherapy results in an increase in pCR. One of the investigational arms of the CALGB 40603 tested paclitaxel 80 mg/m2 once a week (wP) for 12 weeks with concurrent Cb (area under curve 6) once every 3 weeks for four cycles, followed by doxorubicin plus cyclophosphamide once every 2 weeks (ddAC) for four cycles. Although effective this regimen has been difficult to reproduce in the daily practice. The purpose of this study was to evaluate the effectiveness and tolerability of wP in combination with weekly Cb (wP+wCb) area under curve 2 (AUC=2) followed by anthracycline chemotherapy.
Methodology
The electronic medical record system was used to identify female patients 18 years of age or older with clinical stage I-III (TNBC) who received neoadjuvant chemotherapy of wP+wCb (AUC=2) before or after anthracycline chemotherapy between January 1, 2014 and March 1, 2016. The primary outcome was to evaluate the tolerability of fractionating carboplatin to weekly infusions in combination with weekly paclitaxel. The secondary outcomes included the pCR (no evidence of invasive tumor in the breast and axilla), Residual Cancer Burden (RCB), the number of cycles received in each chemotherapy regimen and frequency of chemotherapy related toxicities.
Results:
For the 32 eligible patients, median age: 51 years, Stage I: 6%, Stage II: 68%, Stage: III 26%, germline BRCA mutation: 10%, KI 67 > 75% : 72%. 93% of the patients received 11-12 cycles of wP+wCb and 83% received all 4 planned cycles of anthracycline chemotherapy. 83% of patients completed all planned therapy. pCR and RCB 0/1 rates were 60% (19/32) and 75% (24/32) respectively. RCB 2: 22% (7/32), RCB 3: 3% (1/32). 93% of the patients experienced grade 3 neutropenia during wP+wCb requiring GCSF, Grade 3 anemia was seen in 15 % (5/32) and Grade 3 thrombocytopenia was seen in 18 % (6/32).
Conclusion:
The combination of neoadjuvant chemotherapy with wP+wCb before or after anthracycline chemotherapy was well tolerated among patients with TNBC as demonstrated by the fact that most participants were able to receive all planned 12 cycles of wP+ wCb and all 4 cycles of anthracycline chemotherapy. Complete pathologic response rates were comparable to historically seen. The findings support the continued use of this treatment modality in the general practice.
Citation Format: Castrellon AB, Velez M, Blaya M, Barnick S, Dumais K, LeCroy N. Evaluation of weekly paclitaxel plus carboplatin followed by anthracycline chemotherapy on the neoadjuvant treatment of patients with triple-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 P5-16-19.
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Affiliation(s)
| | - M Velez
- Memorial Cancer Institute, Hollywood, FL
| | - M Blaya
- Memorial Cancer Institute, Hollywood, FL
| | - S Barnick
- Memorial Cancer Institute, Hollywood, FL
| | - K Dumais
- Memorial Cancer Institute, Hollywood, FL
| | - N LeCroy
- Memorial Cancer Institute, Hollywood, FL
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Lisberg A, Mckenna R, Dering J, Chen HW, Kamranpour N, Hou D, Velez M, Cameron R, Lee J, Dubinett S, Slamon D. P1.05-003 Coexpression of CD8a and PD-L1 Frequently Observed in Resected NSCLC Tumors from Smokers. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2016.11.787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Lisberg A, Horton J, Goldman JW, Wolf B, Tucker DA, Carroll J, Abarca P, Strunck J, Velez M, Famenini S, Hunt J, Bornazyan K, Ellis-Caleo T, Zhou X, Grogan T, Elashoff D, Young P, Pietras R, Dubinett S. P3.02b-042 Reduction in Peripheral Blood Cytokine Levels Observed in EGFR Mutant (EGFRm) Patients Treated with Erlotinib. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2016.11.1709] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Velez M, Levine S, Ahmad M, Luis R, Restrepo M. Characterization of Patients With Complicated Parapneumonic Pleural Effusions. Chest 2016. [DOI: 10.1016/j.chest.2016.08.652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Raymond T, Mawri S, Jacobsen G, Selektor Y, Velez M, Williams C, Nemeh H, Borgi J, Morgan J, Lanfear D, Tita C. The Incidence of Spontaneous Intracranial Hemorrhage Is Associated with Infection in Patients with Mechanical Circulatory Support. J Heart Lung Transplant 2016. [DOI: 10.1016/j.healun.2016.01.699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Nguyen T, Ramsey D, Graham D, Shaib Y, Shiota S, Velez M, Cole R, Anand B, Vela M, El-Serag HB. The Prevalence of Helicobacter pylori Remains High in African American and Hispanic Veterans. Helicobacter 2015; 20:305-15. [PMID: 25689684 DOI: 10.1111/hel.12199] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
BACKGROUND Helicobacter pylori in the United States has been declining in the 1990s albeit less so among blacks and Hispanics. As the socioeconomic status of racial groups has evolved, it remains unclear whether the prevalence or the racial and ethnic disparities in the prevalence of H. pylori have changed. METHODS This is a cross-sectional study from a Veteran Affairs center among patients aged 40-80 years old who underwent a study esophagogastroduodenoscopy with gastric biopsies, which were cultured for H. pylori irrespective of findings on histopathology. Positive H. pylori was defined as positive culture or histopathology (stained organism combined with active gastritis). We calculated age-, race-, and birth cohort-specific H. pylori prevalence rates and examined predictors of H. pylori infection in logistic regression models. RESULTS We analyzed data on 1200 patients; most (92.8%) were men and non-Hispanic white (59.9%) or black (28.9%). H. pylori was positive in 347 (28.9%) and was highest among black males aged 50-59 (53.3%; 44.0-62.4%), followed by Hispanic males aged 60-69 (48.1%; 34.2-62.2%), and lowest in non-Hispanic white males aged 40-49 (8.2%; 2.7-20.5%). In multivariate analysis, age group 50-59 was significantly associated with H. pylori (adjusted odds ratio (OR), 2.32; 95% confidence interval (CI), 1.21-4.45) compared with those aged 40-49, and with black race (adjusted OR, 2.57; 95% CI, 1.83-3.60) and Hispanic ethnicity (adjusted OR, 3.01; 95% CI, 1.70-5.34) compared with non-Hispanic white. Irrespective of age group, patients born during 1960-1969 had a lower risk of H. pylori (adjusted OR, 0.45; 95% CI, 0.22-0.96) compared to those born in 1930-1939. Those with some college education were less likely to have H. pylori compared to those with no college education (adjusted OR 0.51; 95% CI, 0.37-0.69). CONCLUSION Among veterans, the prevalence of active H. pylori remains high (28.9%) with even higher rates in blacks and Hispanics with lower education levels.
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Affiliation(s)
- Theresa Nguyen
- Houston VA HSR&D Center for Innovations in Quality, Effectiveness and Safety, Michael E. DeBakey Veterans Affairs Medical Center, Houston, Texas, USA.,Department of Medicine, Baylor College of Medicine, Houston, Texas, USA
| | - David Ramsey
- Houston VA HSR&D Center for Innovations in Quality, Effectiveness and Safety, Michael E. DeBakey Veterans Affairs Medical Center, Houston, Texas, USA
| | - David Graham
- Section of Gastro enterology, Michael E. DeBakey Veterans Affairs Medical Center, Houston, Texas, USA.,Section of Gastroenterology and Hepatology, Baylor College of Medicine, Houston, Texas, USA
| | - Yasser Shaib
- Section of Gastroenterology and Hepatology, Baylor College of Medicine, Houston, Texas, USA
| | - Seiji Shiota
- Section of Gastro enterology, Michael E. DeBakey Veterans Affairs Medical Center, Houston, Texas, USA.,Section of Gastroenterology and Hepatology, Baylor College of Medicine, Houston, Texas, USA
| | - Maria Velez
- Section of Gastro enterology, Michael E. DeBakey Veterans Affairs Medical Center, Houston, Texas, USA.,Section of Gastroenterology and Hepatology, Baylor College of Medicine, Houston, Texas, USA
| | - Rhonda Cole
- Section of Gastro enterology, Michael E. DeBakey Veterans Affairs Medical Center, Houston, Texas, USA.,Section of Gastroenterology and Hepatology, Baylor College of Medicine, Houston, Texas, USA
| | - Bhupinderjit Anand
- Section of Gastro enterology, Michael E. DeBakey Veterans Affairs Medical Center, Houston, Texas, USA.,Section of Gastroenterology and Hepatology, Baylor College of Medicine, Houston, Texas, USA
| | - Marcelo Vela
- Section of Gastro enterology, Michael E. DeBakey Veterans Affairs Medical Center, Houston, Texas, USA.,Section of Gastroenterology and Hepatology, Baylor College of Medicine, Houston, Texas, USA
| | - Hashem B El-Serag
- Houston VA HSR&D Center for Innovations in Quality, Effectiveness and Safety, Michael E. DeBakey Veterans Affairs Medical Center, Houston, Texas, USA.,Section of Gastro enterology, Michael E. DeBakey Veterans Affairs Medical Center, Houston, Texas, USA.,Section of Gastroenterology and Hepatology, Baylor College of Medicine, Houston, Texas, USA
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LaMontagne P, Milchencko M, Velez M, Abraham C, Marcus D, Robinson C, Fouke S. NI-50 * SEGMENTATION OF METASTATIC LESIONS IN LARGE-SCALE REGISTRIES: COMPARISON OF EXPERT MANUAL SEGMENTATION VS. SEMI-AUTOMATED METHODS. Neuro Oncol 2014. [DOI: 10.1093/neuonc/nou264.48] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Khushman M, Scherfenberg N, Hosein P, Velez M, Carcas Peirce L, Dammrich D, Hurtado-Cordovi J, Parajuli R, Pollack T, Harwood A, Macintyre J, Merchan J, Loaiza-Bonilla A, Akunyili I, Restrepo M, Narayanan G, Portelance L, Sleeman D, Levi J, Rocha-Lima C. Safety and Efficacy of Neoadjuvant Folfirinox in Patients (Pts) with Locally Advanced Pancreatic Adenocarcinoma (Lapc). Ann Oncol 2014. [DOI: 10.1093/annonc/mdu334.92] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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El-Serag HB, Hashmi A, Garcia J, Richardson P, Alsarraj A, Fitzgerald S, Vela M, Shaib Y, Abraham NS, Velez M, Cole R, Rodriguez MB, Anand B, Graham DY, Kramer JR. Visceral abdominal obesity measured by CT scan is associated with an increased risk of Barrett's oesophagus: a case-control study. Gut 2014; 63:220-9. [PMID: 23408348 PMCID: PMC3976427 DOI: 10.1136/gutjnl-2012-304189] [Citation(s) in RCA: 85] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
OBJECTIVE Abdominal obesity has been associated with increased risk of Barrett's oesophagus (BE) but the underlying mechanism is unclear. We examined the association between visceral adipose tissue (VAT) and subcutaneous adipose tissue (SAT) and the risk of BE. DESIGN A case-control study among eligible patients scheduled for elective oesophagastroduodenoscopy (EGD) and in a sample of patients eligible for screening colonoscopy recruited at the primary care clinic. All cases with definitive BE and a random sample of controls without BE were invited to undergo standardised mid-abdomen non-contrast computerised axial tomography images, which were analysed by semiautomated image segmentation software. The effect of VAT and SAT surface areas and their ratio (VAT to SAT) on BE were analysed in logistic regression models. RESULTS A total of 173 BE cases, 343 colonoscopy controls and 172 endoscopy controls underwent study EGD and CT scan. Participants with BE were more than twice as likely to be in the highest tertile of VAT to SAT ratio (OR: 2.42 (1.51 to 3.88) and adjusted OR 1.47 (0.88 to 2.45)) than colonoscopy controls, especially for those long (≥3 cm) segment BE (3.42 (1.67 to 7.01) and adjusted OR 1.93 (0.92 to 4.09)) and for white men (adjusted OR 2.12 (1.15 to 3.90)). Adjustment for gastroesophageal reflux disease (GERD) symptoms and proton pump inhibitors (PPI) use attenuated this association, but there was a significant increase in BE risk even in the absence of GERD or PPI use. CONCLUSIONS Large amount of visceral abdominal fat relative to subcutaneous fat is associated with a significant increase in the risk of BE. GERD may mediate some but not all of this association.
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Affiliation(s)
- Hashem B. El-Serag
- Houston VA HSR&D Center of Excellence Section, Michael E. DeBakey VA Medical Center and Baylor College of Medicine, Houston, Texas, USA,Department of Gastroenterology and Hepatology, Michael E. DeBakey VA Medical Center and Baylor College of Medicine, Houston, Texas, USA
| | - Ali Hashmi
- Department of Gastroenterology and Hepatology, Michael E. DeBakey VA Medical Center and Baylor College of Medicine, Houston, Texas, USA
| | - Jose Garcia
- Department of Endocrinology, Metabolism and Diabetes, Michael E. DeBakey VA Medical Center and Baylor College of Medicine, Houston, Texas, USA
| | - Peter Richardson
- Houston VA HSR&D Center of Excellence Section, Michael E. DeBakey VA Medical Center and Baylor College of Medicine, Houston, Texas, USA,Health Services Research, Michael E. DeBakey VA Medical Center and Baylor College of Medicine, Houston, Texas, USA
| | - Abeer Alsarraj
- Houston VA HSR&D Center of Excellence Section, Michael E. DeBakey VA Medical Center and Baylor College of Medicine, Houston, Texas, USA,Department of Gastroenterology and Hepatology, Michael E. DeBakey VA Medical Center and Baylor College of Medicine, Houston, Texas, USA,Health Services Research, Michael E. DeBakey VA Medical Center and Baylor College of Medicine, Houston, Texas, USA
| | - Stephanie Fitzgerald
- Houston VA HSR&D Center of Excellence Section, Michael E. DeBakey VA Medical Center and Baylor College of Medicine, Houston, Texas, USA,Department of Gastroenterology and Hepatology, Michael E. DeBakey VA Medical Center and Baylor College of Medicine, Houston, Texas, USA,Health Services Research, Michael E. DeBakey VA Medical Center and Baylor College of Medicine, Houston, Texas, USA
| | - Marcelo Vela
- Department of Gastroenterology and Hepatology, Michael E. DeBakey VA Medical Center and Baylor College of Medicine, Houston, Texas, USA
| | - Yasser Shaib
- Department of Gastroenterology and Hepatology, Michael E. DeBakey VA Medical Center and Baylor College of Medicine, Houston, Texas, USA
| | - Neena S. Abraham
- Department of Gastroenterology and Hepatology, Michael E. DeBakey VA Medical Center and Baylor College of Medicine, Houston, Texas, USA
| | - Maria Velez
- Department of Gastroenterology and Hepatology, Michael E. DeBakey VA Medical Center and Baylor College of Medicine, Houston, Texas, USA
| | - Rhonda Cole
- Department of Gastroenterology and Hepatology, Michael E. DeBakey VA Medical Center and Baylor College of Medicine, Houston, Texas, USA
| | - Margot B. Rodriguez
- Department of Radiology, Michael E. DeBakey VA Medical Center and Baylor College of Medicine, Houston, Texas, USA
| | - Bhupinderjit Anand
- Department of Gastroenterology and Hepatology, Michael E. DeBakey VA Medical Center and Baylor College of Medicine, Houston, Texas, USA
| | - David Y. Graham
- Department of Gastroenterology and Hepatology, Michael E. DeBakey VA Medical Center and Baylor College of Medicine, Houston, Texas, USA
| | - Jennifer R. Kramer
- Houston VA HSR&D Center of Excellence Section, Michael E. DeBakey VA Medical Center and Baylor College of Medicine, Houston, Texas, USA,Health Services Research, Michael E. DeBakey VA Medical Center and Baylor College of Medicine, Houston, Texas, USA
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Velez M, Mailloux B, Malave A. Run Away Silicone. Chest 2013. [DOI: 10.1378/chest.1704367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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Saad H, Khalil E, Bora SA, Parikh J, Abdalla H, Thum MY, Bina V, Roopa P, Shyamala S, Anupama A, Tournaye H, Polyzos NP, Guzman L, Nelson SM, Lourenco B, Sousa AP, Almeida-Santos T, Ramalho-Santos J, Okhowat J, Wirleitner B, Neyer T, Bach M, Murtinger M, Zech NH, Polyzos NP, Nwoye M, Corona R, Blockeel C, Stoop D, Camus M, Tournaye H, Rajikin MH, Kamsani YS, Chatterjee A, Nor-Ashikin MNK, Nuraliza AS, Scaravelli G, D'Aloja P, Bolli S, De Luca R, Spoletini R, Fiaccavento S, Speziale L, Vigiliano V, Farquhar C, Brown J, Arroll N, Gupta D, Boothroyd C, Al Bassam M, Moir J, Johnson N, Pantasri T, Robker RL, Wu LL, Norman RJ, Buzaglo K, Velez M, Shaulov T, Sylvestre C, Kadoch IJ, Krog M, Prior M, Carlsen E, Loft A, Pinborg A, Andersen AN, Dolleman M, Verschuren WMM, Eijkemans MJC, Dolle MET, Jansen EHJM, Broekmans FJM, Van der Schouw YT, Fainaru O, Pencovich N, Hantisteanu S, Barzilay I, Ellenbogen A, Hallak M, Cavagna M, Baruffi RLR, Petersen CG, Mauri AL, Massaro FC, Ricci J, Nascimento AM, Vagnini LD, Pontes A, Oliveira JBA, Franco JG, Canas MCT, Vagnini LD, Nascimento AM, Petersen CG, Mauri AL, Massaro FC, Nicoletti A, Martins AMVC, Cavagna M, Oliveira JBA, Baruffi RLR, Franco JG, Lichtblau I, Olivennes F, Aubriot FA, Junca AM, Belloc S, Cohen-Bacrie M, Cohen-Bacrie P, de Mouzon J, Nandy T, Caragia A, Balestrini S, Zosmer A, Sabatini L, Al-Shawaf T, Seshadri S, Khalaf Y, Sunkara SK, Joy J, Lambe M, Lutton D, Nicopoullos J, Bora SA, Parikh J, Faris R, Abdalla H, Thum MY, Behre HM, Howles CM, Longobardi S, Chimote N, Mehta B, Nath N, Chimote NM, Mehta B, Nath N, Chimote N, Chimote NM, Mine K, Yoshida A, Yonezawa M, Ono S, Abe T, Ichikawa T, Tomiyama R, Nishi Y, Kuwabara Y, Akira S, Takeshita T, Shin H, Song HS, Lim HJ, Hauzman E, Kohls G, Barrio A, Martinez-Salazar J, Iglesias C, Velasco JAG, Tejada MI, Maortua H, Mendoza R, Prieto B, Martinez-Bouzas C, Diez-Zapirain M, Martinez-Zilloniz N, Matorras R, Amaro A, Bianco B, Christofolini J, Mafra FA, Barbosa CP, Christofolini DM, Pesce R, Gogorza S, Ochoa C, Gil S, Saavedra A, Ciarmatori S, Perman G, Pagliardini L, Papaleo E, Corti L, Vanni VS, Ottolina J, de Michele F, Marca AL, Vigano P, Candiani M, Li L, Yin Q, Huang L, Huang J, He Z, Yang D, Parikh J, Bora SA, Abdalla H, Thum MY, Tiplady S, Ledger W, Godbert S, Hart S, Johnson S, Wong AWY, Kong GWS, Haines CJ, Franik S, Nelen W, Kremer J, Farquhar C, Gillett WR, Lamont JM, Peek JC, Herbison GP, Sung NY, Hwang YI, Choi MH, Song IO, Kang IS, Koong MK, Lee JS, Yang KM, Celtemen MB, Telli P, Karakaya C, Bozkurt N, Gursoy RH, Younis JS, Ben-Ami M, Pundir J, Pundir V, Omanwa K, Khalaf Y, El-Toukhy T. Female (in)fertility. Hum Reprod 2013. [DOI: 10.1093/humrep/det213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Morgan J, Brewer R, Borgi J, Tsiouris A, Nemeh H, Henry S, Williams C, Lanfear D, Tita C, Velez M, Selektor Y, Paone G. Favorable Outcomes Using Long-Term Implantable Left Ventricular Assist Devices in Patients Sixty Five Years of Age and Older. J Heart Lung Transplant 2013. [DOI: 10.1016/j.healun.2013.01.728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Gonzalez de Castro D, Angulo B, Gomez B, Mair D, Martinez R, Suarez-Gauthier A, Shieh F, Velez M, Brophy VH, Lawrence HJ, Lopez-Rios F. A comparison of three methods for detecting KRAS mutations in formalin-fixed colorectal cancer specimens. Br J Cancer 2012; 107:345-51. [PMID: 22713664 PMCID: PMC3394984 DOI: 10.1038/bjc.2012.259] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND KRAS mutation testing is required to select patients with metastatic colorectal cancer (CRC) to receive anti-epidermal growth factor receptor antibodies, but the optimal KRAS mutation test method is uncertain. METHODS We conducted a two-site comparison of two commercial KRAS mutation kits - the cobas KRAS Mutation Test and the Qiagen therascreen KRAS Kit - and Sanger sequencing. A panel of 120 CRC specimens was tested with all three methods. The agreement between the cobas test and each of the other methods was assessed. Specimens with discordant results were subjected to quantitative massively parallel pyrosequencing (MPP). DNA blends were tested to determine detection rates at 5% mutant alleles. RESULTS Reproducibility of the cobas test between sites was 98%. Six mutations were detected by cobas that were not detected by Sanger, and five were confirmed by MPP. The cobas test detected eight mutations which were not detected by the therascreen test, and seven were confirmed by MPP. Detection rates with 5% mutant DNA blends were 100% for the cobas and therascreen tests and 19% for Sanger. CONCLUSION The cobas test was reproducible between sites, and detected several mutations that were not detected by the therascreen test or Sanger. Sanger sequencing had poor sensitivity for low levels of mutation.
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Affiliation(s)
- D Gonzalez de Castro
- Molecular Diagnostics Department, The Institute of Cancer Research and the Royal Marsden NHS Foundation Trust, 15 Cotswold Road, London SM2 5NG, UK.
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Jansson L, Di Pietro J, Elko A, Williams E, Milio L, Velez M. Pregnancies exposed to methadone, methadone and other illicit substances, and poly-drugs without methadone: a comparison of fetal neurobehaviors and infant outcomes. Drug Alcohol Depend 2012; 122:213-9. [PMID: 22041255 PMCID: PMC3288292 DOI: 10.1016/j.drugalcdep.2011.10.003] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2011] [Revised: 09/28/2011] [Accepted: 10/02/2011] [Indexed: 10/15/2022]
Abstract
BACKGROUND It is suspected that there is a continuum of impairment among prenatally drug-exposed infants, such that opioid and/or poly-drug exposure confers the highest risk for adverse neonatal outcomes than other classes of substances or single substance exposures. Suitable control groups are difficult to identify. This study compared fetal neurobehavioral development and infant outcomes in offspring of three groups of pregnant women in drug treatment. Exposure groups include: Methadone+other illicit substances (MM+Poly) and two groups currently abstinent for poly drug exposures: Methadone only (MM/A) and Non-Methadone (NM/A). METHODS Forty-nine women (19 MM+Poly, 18 MM/A, and 12 NM/A) underwent fetal monitoring at 36 weeks gestation at peak and trough levels of methadone (MM+Poly; MM/A) or at comparable morning and afternoon times (NM/A). Fetal heart rate (FHR), heart rate variability (FHRV) and motor activity (FM) data were collected. Infant measures included birth outcomes and Neonatal Abstinence Syndrome (NAS) assessment. RESULTS As compared to the NM/A group, cardiac measures were decreased in methadone-exposed fetuses at peak levels. FHR was significantly more suppressed in the MM+Poly group. FM was significantly lower in the MM/A vs. the NM/A group at both peak and trough, indicative of more persistent exposure effects. The MM+Poly group delivered 1 week earlier and required NAS pharmacological treatment twice as often as the MM/A group. CONCLUSIONS Results support the notion that poly-drug exposure may potentiate the effects of methadone on the fetus and infant and highlights the need for intensified treatment for methadone-maintained women who abuse other substances.
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Affiliation(s)
- L.M. Jansson
- Johns Hopkins University School of Medicine, Department of Pediatrics, Baltimore MD 21224, USA
| | - J.A. Di Pietro
- Johns Hopkins Bloomberg School of Public Health, Department of Population, Family and Reproductive Health, Baltimore, MD 21205, USA
| | - A. Elko
- Johns Hopkins University School of Medicine, Department of Obstetrics and Gynecology, Baltimore, MD 21224, USA
| | - E.L. Williams
- Johns Hopkins Bloomberg School of Public Health, Department of Population, Family and Reproductive Health, Baltimore, MD 21205, USA
| | - L. Milio
- Johns Hopkins University School of Medicine, Department of Obstetrics and Gynecology, Baltimore, MD 21224, USA
| | - M. Velez
- Johns Hopkins University School of Medicine, Department of Pediatrics, Baltimore MD 21224, USA
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Lascano G, Velez M, Tricarico J, Heinrichs A. Short communication: Nutrient utilization of fresh sugarcane-based diets with slow-release nonprotein nitrogen addition for control-fed dairy heifers. J Dairy Sci 2012; 95:370-6. [DOI: 10.3168/jds.2011-4275] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2011] [Accepted: 09/07/2011] [Indexed: 11/19/2022]
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Fox D, Amador F, Clarke D, Velez M, Cruz J, Labropoulos N, Ryan M, Gelman L. Duplex Guided Dialysis Access Interventions can be Performed Safely in the Office Setting: Techniques and Early Results. Eur J Vasc Endovasc Surg 2011; 42:833-41. [DOI: 10.1016/j.ejvs.2011.04.020] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2010] [Accepted: 04/12/2011] [Indexed: 11/17/2022]
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