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Arroyave JS, Wang D, Connors C, Larenas F, Ferrer F, Palese M. Open retropubic prostatectomy in a patient with bladder exstrophy for management of hematuria and urethral discharge - A case report. Urol Case Rep 2023; 51:102590. [PMID: 37928513 PMCID: PMC10622629 DOI: 10.1016/j.eucr.2023.102590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 10/05/2023] [Accepted: 10/13/2023] [Indexed: 11/07/2023] Open
Abstract
Bladder exstrophy (BE) is a rare congenital disorder causing bladder and urethral malformation due to an abdominal wall embryological defect. Traditionally, BE had a poor life expectancy, but advances now offer a normal lifespan. A 57-year-old male with BE history and ureterosigmoidostomy repair presented with intractable hematuria, urethral discharge, and recurrent prostatic infections. He underwent retropubic subtotal prostatectomy without major complications, resolving urinary symptoms. Advances in BE management extend patient lifespans. This case demonstrates successful surgical management of hematuria and urethral discharge through radical prostatectomy in an adult with a history of BE.
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Affiliation(s)
- Juan Sebastian Arroyave
- Department of Urology, Icahn School of Medicine at Mount Sinai, Gustave L. Levy Place, New York, NY, 10029, USA
| | - Daniel Wang
- Department of Urology, Icahn School of Medicine at Mount Sinai, Gustave L. Levy Place, New York, NY, 10029, USA
| | - Christopher Connors
- Department of Urology, Icahn School of Medicine at Mount Sinai, Gustave L. Levy Place, New York, NY, 10029, USA
| | - Francisca Larenas
- Department of Urology, Icahn School of Medicine at Mount Sinai, Gustave L. Levy Place, New York, NY, 10029, USA
| | - Fernando Ferrer
- Department of Urology, Icahn School of Medicine at Mount Sinai, Gustave L. Levy Place, New York, NY, 10029, USA
| | - Michael Palese
- Department of Urology, Icahn School of Medicine at Mount Sinai, Gustave L. Levy Place, New York, NY, 10029, USA
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2
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Marin D, Gerbaud G, Margeat O, Ziarelli F, Ferrer F, Ouari O, Campos A, Bertaina S, Savoyant A. Magnetic functionalization of ZnO nanoparticles surfaces via optically generated methyl radicals. J Chem Phys 2023; 158:2889491. [PMID: 37158327 DOI: 10.1063/5.0152015] [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] [Received: 03/27/2023] [Accepted: 04/24/2023] [Indexed: 05/10/2023] Open
Abstract
The combination of nuclear and electron magnetic resonance techniques, in pulse and continuous wave regimes, is used to unravel the nature and features of the light-induced magnetic state arising at the surface of chemically prepared zinc oxide nanoparticles (NPs) occurring under 120 K when subjected to a sub-bandgap (405 nm) laser excitation. It is shown that the four-line structure observed around g ∼ 2.00 in the as-grown samples (beside the usual core-defect signal at g ∼ 1.96) arises from surface-located methyl radicals (•CH3), originating from the acetate capped ZnO molecules. By functionalizing the as-grown zinc oxide NPs with deuterated sodium acetate, the •CH3 electron paramagnetic resonance (EPR) signal is replaced by trideuteromethyl (•CD3). For •CH3, •CD3, and core-defect signals, an electron spin echo is detected below ∼100 K, allowing for the spin-lattice and spin-spin relaxation-time measurements for each of them. Advanced pulse-EPR techniques reveal the proton or deuteron spin-echo modulation for both radicals and give access to small unresolved superhyperfine couplings between adjacent •CH3. In addition, electron double resonance techniques show that some correlations exist between the different EPR transitions of •CH3. These correlations are discussed as possibly arising from cross-relaxation phenomena between different rotational states of radicals.
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Affiliation(s)
- D Marin
- Aix Marseille University, CNRS, IM2NP, Marseille, France
| | - G Gerbaud
- Aix Marseille University, CNRS, BIP, Marseille, France
| | - O Margeat
- Aix Marseille University, CNRS, CINAM, Marseille, France
| | - F Ziarelli
- Aix Marseille University, CNRS, Centrale Marseille, FSCM (FR1739), 13397 Marseille, France
| | - F Ferrer
- Aix Marseille University, CNRS, ICR, Marseille, France
| | - O Ouari
- Aix Marseille University, CNRS, ICR, Marseille, France
| | - A Campos
- Aix Marseille University, CNRS, Centrale Marseille, FSCM (FR1739), 13397 Marseille, France
| | - S Bertaina
- Aix Marseille University, CNRS, IM2NP, Marseille, France
| | - A Savoyant
- Aix Marseille University, CNRS, IM2NP, Marseille, France
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3
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Osmani F, Ferrer F, Barnett NR. Regional anesthesia for ambulatory pediatric penoscrotal procedures. J Pediatr Urol 2021; 17:836-844. [PMID: 34400101 DOI: 10.1016/j.jpurol.2021.07.017] [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: 03/01/2021] [Revised: 07/14/2021] [Accepted: 07/19/2021] [Indexed: 11/15/2022]
Abstract
BACKGROUND/PURPOSE Pediatric urology procedures are amongst the most commonly performed in children. The need for proactive treatment of pain is essential for optimal patient care. Current guidelines recommend the routine use of regional anesthesia in children as appropriate unless contraindicated. Given the commonality of urologic procedures in children, it is essential to understand the indications for and the utility of regional anesthesia. METHODS The current literature was searched using PubMed as the primary platform. Search words included 'dorsal penile nerve block,' 'pudendal nerve block,' 'ring block,' 'spinal anesthesia,' and 'caudal,' along with 'pediatric', 'circumcision,' 'hypospadias,' 'urology', and 'urological surgery' as part of the keywords of the search. RESULTS The articles resulting from the literature search were reviewed for content, clarity and study design by two co-authors, and agreement determined the incorporation into the review. Additionally, a detailed description of study design, regional anesthetic technique, local anesthetic(s) used, and outcomes of each study referenced was incorporated into the supplemental table. CONCLUSION Given the variance in block technique and local anesthetic choice amongst the current reported studies in the literature, it is difficult to truly compare and infer superiority of the regional anesthetic choices for ambulatory penoscrotal procedures. When choosing a regional anesthetic technique, careful consideration must be placed on block coverage, severity of expected pain and surgical duration of the procedure, type and dose of local anesthetic, as well as the patient's past medical history and anatomy. Moreover, the regional block chosen should result from a thorough preoperative discussion between the surgeon and the anesthesiologist.
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Affiliation(s)
- Feroz Osmani
- Department of Anesthesiology, Mount Sinai Hospital, Icahn School of Medicine, New York, NY, USA
| | - Fernando Ferrer
- Department of Urology, Mount Sinai Hospital, Icahn School of Medicine, New York, NY, USA
| | - Natalie R Barnett
- Department of Anesthesiology, Medical University of South Carolina, Charleston, SC, USA.
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Conde-Moreno A, Lopez F, Hervas A, Morillo V, Mendez A, Puertas M, Albarrán J, De Iturriaga A, Rico M, Vázquez de la Torre M, Ots P, Romasanta L, Peidro J, Ibañez C, Ferrer F, Zapatero A, Anchuelo J, Rodriguez A, Albiach C. Phase II Trial of SBRT and Androgen Deprivation for Oligometastases in Prostate Cancer. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.151] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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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5
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Ferreira HDS, Ferrer F, Cabanelas N, Nelumba T, Ferreira AR, Faustino M, Antunes S, Vasconcelos H, Beringuilho M, Polena C, Borralho C, Madeira F, Morais C. Artificial intelligence: an attempt to automate remote device follow-up. Europace 2021. [DOI: 10.1093/europace/euab116.517] [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: 11/12/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: None.
Introduction
Artificial intelligence (AI) through machine learning (ML) refers to the simulation of human intelligence with the capacity for achieving goals within computers. In electrophysiology, ML has many applications in electrocardiography, intracardiac mapping and cardiac implantable electronic devices (CIEDs).
Remote monitoring (RM) of patients equipped with CIEDs associates the analysis of event reports and calendar-based remote follow-ups (FU). ML applications have allowed for risk stratification, improved arrhythmia localisation and streamlined remote monitoring which may significantly reduce the workload faced by electrophysiologists.
Aim
To develop a system that automates cardiac implantable electronic devices remote follow-up.
Methods and Results
We created a Java software application, that uses the latest optical character recognition techniques combined with artificial intelligence and natural language processing to extract information from PDF reports of RM of CIEDs from different manufacturers. The current version is HIPAA (Health Insurance Portability and Accountability Act) complaint and runs on local computers only.
Using the current system, we were able to run and extract data from 30 remote follow-up PDF reports of Cardiac Implantable Defibrillators (ICDs) and Cardiac Resynchronization Therapy with Defibrillator (CRT-Ds).
Time taken from data extraction to conversion of all 30 device PDFs was under 5 minutes.
Process and data extracted are presented in the figure below. (Figure 1)
Conclusion
This machine learning algorithm proved that it is possible to facilitate and automate remote follow-up of cardiac implantable electronic devices.
In a near future this will allow to us to efficiently increase productivity, by speeding and facilitating interpretation of remote device follow-ups, leading to improvements in patientcare and precision cardiovascular medicine.
Furthermore, in the current and future pandemics it may help prevent unnecessary in-person medical visits, avoiding additional, unnecessary strain on an already overburdened and overwhelmed healthcare system, and saving costs. Abstract Figure 1
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Affiliation(s)
- HDS Ferreira
- Hospital Prof Fernando da Fonseca EPE, Amadora, Portugal
| | - F Ferrer
- Immutable Data Inc., Ontario, Canada
| | - N Cabanelas
- Hospital Prof Fernando da Fonseca EPE, Amadora, Portugal
| | - T Nelumba
- Hospital de Santa Cruz, Pediatric Cardiology Department, Lisbon, Portugal
| | - AR Ferreira
- Hospital Prof Fernando da Fonseca EPE, Amadora, Portugal
| | - M Faustino
- Hospital Prof Fernando da Fonseca EPE, Amadora, Portugal
| | - S Antunes
- Hospital Prof Fernando da Fonseca EPE, Amadora, Portugal
| | - H Vasconcelos
- Hospital Prof Fernando da Fonseca EPE, Amadora, Portugal
| | - M Beringuilho
- Hospital Prof Fernando da Fonseca EPE, Amadora, Portugal
| | - C Polena
- Hospital Prof Fernando da Fonseca EPE, Amadora, Portugal
| | - C Borralho
- Hospital Prof Fernando da Fonseca EPE, Amadora, Portugal
| | - F Madeira
- Hospital Prof Fernando da Fonseca EPE, Amadora, Portugal
| | - C Morais
- Hospital Prof Fernando da Fonseca EPE, Amadora, Portugal
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6
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Affiliation(s)
- Eric Bortnick
- Department of Urology, Icahn School of Medicine at Mount Sinai, New York, USA
| | - Jeffrey Stock
- Department of Urology, Icahn School of Medicine at Mount Sinai, New York, USA.,Kravis Children's Hospital at Mount Sinai, New York, NY, USA
| | - Fernando Ferrer
- Department of Urology, Icahn School of Medicine at Mount Sinai, New York, USA.,Kravis Children's Hospital at Mount Sinai, New York, NY, USA
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7
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Mihalopoulos M, Levine AC, Marayati NF, Chubak BM, Archer M, Badani KK, Tewari AK, Mohamed N, Ferrer F, Kyprianou N. The Resilient Child: Sex-Steroid Hormones and COVID-19 Incidence in Pediatric Patients. J Endocr Soc 2020; 4:bvaa106. [PMID: 32864545 PMCID: PMC7448286 DOI: 10.1210/jendso/bvaa106] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Accepted: 07/21/2020] [Indexed: 02/06/2023] Open
Abstract
Coronavirus disease–2019 (COVID-19), a disease caused by Severe Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) infection, has become an unprecedented global health emergency, with fatal outcomes among adults of all ages in the United States, and the highest incidence and mortality in adult men. As the pandemic evolves there is limited understanding of a potential association between symptomatic viral infection and age. To date, there is no knowledge of the role children (prepubescent, ages 9-13 years) play as “silent” vectors of the virus, with themselves being asymptomatic. Throughout different time frames and geographic locations, the current evidence on COVID-19 suggests that children are becoming infected at a significantly lower rate than other age groups—as low as 1%. Androgens upregulate the protease TMPRSS2 (type II transmembrane serine protease-2), which facilitates efficient virus-host cell fusion with the epithelium of the lungs, thus increasing susceptibility to SARS-CoV-2 infection and development of severe COVID-19. Owing to low levels of steroid hormones, prepubertal children may have low expression of TMPRSS2, thereby limiting the viral entry into host cells. As the world anticipates a vaccine against SARS-CoV-2, the role of prepubescent children as vectors transmitting the virus must be interrogated to prepare for a potential resurgence of COVID-19. This review discusses the current evidence on the low incidence of COVID-19 in children and the effect of sex-steroid hormones on SARS-CoV-2 viral infection and clinical outcomes of pediatric patients. On reopening society at large, schools will need to implement heightened health protocols with the knowledge that children as the “silent” viral transmitters can significantly affect the adult populations.
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Affiliation(s)
- Meredith Mihalopoulos
- Department of Urology, Icahn School of Medicine at Mount Sinai, New York, New York.,The Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Alice C Levine
- The Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, New York.,Department of Medicine, Division of Endocrinology, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Naoum Fares Marayati
- Department of Urology, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Barbara M Chubak
- Department of Urology, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Maddison Archer
- Department of Urology, Icahn School of Medicine at Mount Sinai, New York, New York.,The Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Ketan K Badani
- Department of Urology, Icahn School of Medicine at Mount Sinai, New York, New York.,The Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Ashutosh K Tewari
- Department of Urology, Icahn School of Medicine at Mount Sinai, New York, New York.,The Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Nihal Mohamed
- Department of Urology, Icahn School of Medicine at Mount Sinai, New York, New York.,The Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Fernando Ferrer
- Department of Urology, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Natasha Kyprianou
- Department of Urology, Icahn School of Medicine at Mount Sinai, New York, New York.,The Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, New York.,Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, New York.,Department of Pathology, Icahn School of Medicine at Mount Sinai, New York, New York
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8
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de Salazar A, Ferrer F, Vinuesa D, Chueca N, de Luis-Perez C, García F. Unusual case report of skin infection by Paenibacillus timonensis. Rev Esp Quimioter 2020; 33:139-140. [PMID: 32149488 PMCID: PMC7111240 DOI: 10.37201/req/079.2019] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Affiliation(s)
- A de Salazar
- Adolfo de Salazar, Microbiology Clinic Unit, Hospital Universitario San Cecilio. Instituto de Investigación Ibs. Granada, Spain.
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Casas Duran F, Valduvieco I, Oses G, Cortés KS, Barreto TD, Muñoz-Guglielmetti D, Ferrer F. Spanish validation of Charlson index applied to prostate cancer. Clin Transl Oncol 2019; 22:1187-1192. [PMID: 31748962 DOI: 10.1007/s12094-019-02246-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [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: 07/16/2019] [Accepted: 11/11/2019] [Indexed: 10/25/2022]
Abstract
PURPOSE Comorbidity assessment is essential in the triage of care for men with prostate cancer (PC). The aim of this study was to validate the Spanish version of the revised Charlson index (RCI) in PC. MATERIALS AND METHODS 731 PC patients diagnosed from 1993 to 2008 were referred to our Radiation Oncology Department. The RCI classified patients into four categories RCI 0, RCI 1-2, RCI 3-4, and RCI 5 and higher. The Kaplan-Meier method and Cox proportional hazards modeling were used. We also analyzed the median age of patients who remained alive at the last control and those who died due to non-prostate cancer comorbidities. RESULTS 636 patients were included median age: 70 years (44-85). The mean follow-up was 153.62 months, (6-288 months). Distribution of the D'Amico risk classification was 21%, 38.2%, and 40.8% for low, intermediate, and high risk, respectively. The RCI distribution categories were: 303 (46.7%) RCI 0, 102 (16%) RCI 1-2, 131 (20.6%) RCI 3-4, and 100 (15.7%) RCI 5 and higher. The probability of non-cause-specific mortality at 5 and 10 years was 2. 4% and 11.25% RCI 0, 3 and 14.1% RCI 1-2, 5.7% and 22.1% RCI 3-4, and 47% and 92% (RCI 5 and higher). The median age in the last control in patients alive or who had died by non-PC causes was 82.81 years (55.27-102). DISCUSSION The RCI may be used to aid medical decision making in older Spanish men with PC, especially in those with a high RCI 5 and higher.
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Affiliation(s)
- F Casas Duran
- Radiation Oncology Department, Hospital Clínic, Barcelona, Spain.
| | - I Valduvieco
- Radiation Oncology Department, Hospital Clínic, Barcelona, Spain
| | - G Oses
- Radiation Oncology Department, Hospital Clínic, Barcelona, Spain
| | - K S Cortés
- Radiation Oncology Department, Hospital Clínic, Barcelona, Spain
| | - T D Barreto
- Radiation Oncology Department, Hospital Clínic, Barcelona, Spain
| | | | - F Ferrer
- Departament de Ciències Clíniques, Radiation Oncology Department, Institut Català d'Oncologia, IDIBELL, Universitat de Barcelona, Barcelona, Spain
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Rodilla Sala E, Colomer V, Perseguer Z, Jordá A, Jordá R, Prats R, García M, Vidal L, Sanchis M, Córcoles M, Mud F, Bellver O, Adell M, Ferrer F, Hernández M, Llopis T, Rodrigo M, Baixauli V, Climent M, Moreno L. DIFFERENCES IN AORTIC AUGMENTATION PRESSURE BETWEEN NORMOTENSIVE AND HYPERTENSIVE SUBJECTS MEASURED IN COMMUNITY PHARMACIES IN SPAIN. J Hypertens 2019. [DOI: 10.1097/01.hjh.0000572696.06657.f1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [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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11
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Partridge AW, Kaan HYK, Juang YC, Sadruddin A, Lim S, Brown CJ, Ng S, Thean D, Ferrer F, Johannes C, Yuen TY, Kannan S, Aronica P, Tan YS, Pradhan MR, Verma CS, Hochman J, Chen S, Wan H, Ha S, Sherborne B, Lane DP, Sawyer TK. Incorporation of Putative Helix-Breaking Amino Acids in the Design of Novel Stapled Peptides: Exploring Biophysical and Cellular Permeability Properties. Molecules 2019; 24:E2292. [PMID: 31226791 PMCID: PMC6632053 DOI: 10.3390/molecules24122292] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Revised: 06/14/2019] [Accepted: 06/16/2019] [Indexed: 12/21/2022] Open
Abstract
Stapled α-helical peptides represent an emerging superclass of macrocyclic molecules with drug-like properties, including high-affinity target binding, protease resistance, and membrane permeability. As a model system for probing the chemical space available for optimizing these properties, we focused on dual Mdm2/MdmX antagonist stapled peptides related to the p53 N-terminus. Specifically, we first generated a library of ATSP-7041 (Chang et al., 2013) analogs iteratively modified by L-Ala and D-amino acids. Single L-Ala substitutions beyond the Mdm2/(X) binding interfacial residues (i.e., Phe3, Trp7, and Cba10) had minimal effects on target binding, α-helical content, and cellular activity. Similar binding affinities and cellular activities were noted at non-interfacial positions when the template residues were substituted with their d-amino acid counterparts, despite the fact that d-amino acid residues typically 'break' right-handed α-helices. d-amino acid substitutions at the interfacial residues Phe3 and Cba10 resulted in the expected decreases in binding affinity and cellular activity. Surprisingly, substitution at the remaining interfacial position with its d-amino acid equivalent (i.e., Trp7 to d-Trp7) was fully tolerated, both in terms of its binding affinity and cellular activity. An X-ray structure of the d-Trp7-modified peptide was determined and revealed that the indole side chain was able to interact optimally with its Mdm2 binding site by a slight global re-orientation of the stapled peptide. To further investigate the comparative effects of d-amino acid substitutions we used linear analogs of ATSP-7041, where we replaced the stapling amino acids by Aib (i.e., R84 to Aib4 and S511 to Aib11) to retain the helix-inducing properties of α-methylation. The resultant analog sequence Ac-Leu-Thr-Phe-Aib-Glu-Tyr-Trp-Gln-Leu-Cba-Aib-Ser-Ala-Ala-NH2 exhibited high-affinity target binding (Mdm2 Kd = 43 nM) and significant α-helicity in circular dichroism studies. Relative to this linear ATSP-7041 analog, several d-amino acid substitutions at Mdm2(X) non-binding residues (e.g., d-Glu5, d-Gln8, and d-Leu9) demonstrated decreased binding and α-helicity. Importantly, circular dichroism (CD) spectroscopy showed that although helicity was indeed disrupted by d-amino acids in linear versions of our template sequence, stapled molecules tolerated these residues well. Further studies on stapled peptides incorporating N-methylated amino acids, l-Pro, or Gly substitutions showed that despite some positional dependence, these helix-breaking residues were also generally tolerated in terms of secondary structure, binding affinity, and cellular activity. Overall, macrocyclization by hydrocarbon stapling appears to overcome the destabilization of α-helicity by helix breaking residues and, in the specific case of d-Trp7-modification, a highly potent ATSP-7041 analog (Mdm2 Kd = 30 nM; cellular EC50 = 600 nM) was identified. Our findings provide incentive for future studies to expand the chemical diversity of macrocyclic α-helical peptides (e.g., d-amino acid modifications) to explore their biophysical properties and cellular permeability. Indeed, using the library of 50 peptides generated in this study, a good correlation between cellular permeability and lipophilicity was observed.
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Affiliation(s)
- Anthony W Partridge
- MSD International, 8 Biomedical Grove, #04-01/05 Neuros Building, Singapore 138665, Singapore.
| | - Hung Yi Kristal Kaan
- MSD International, 8 Biomedical Grove, #04-01/05 Neuros Building, Singapore 138665, Singapore.
| | - Yu-Chi Juang
- MSD International, 8 Biomedical Grove, #04-01/05 Neuros Building, Singapore 138665, Singapore.
| | - Ahmad Sadruddin
- MSD International, 8 Biomedical Grove, #04-01/05 Neuros Building, Singapore 138665, Singapore.
| | - Shuhui Lim
- MSD International, 8 Biomedical Grove, #04-01/05 Neuros Building, Singapore 138665, Singapore.
| | - Christopher J Brown
- p53Lab, Agency for Science, Technology and Research (A*STAR), 8A Biomedical Grove, #06-04/05 Neuros/Immunos, Singapore 138648, Singapore.
| | - Simon Ng
- p53Lab, Agency for Science, Technology and Research (A*STAR), 8A Biomedical Grove, #06-04/05 Neuros/Immunos, Singapore 138648, Singapore.
| | - Dawn Thean
- p53Lab, Agency for Science, Technology and Research (A*STAR), 8A Biomedical Grove, #06-04/05 Neuros/Immunos, Singapore 138648, Singapore.
| | - Fernando Ferrer
- p53Lab, Agency for Science, Technology and Research (A*STAR), 8A Biomedical Grove, #06-04/05 Neuros/Immunos, Singapore 138648, Singapore.
| | - Charles Johannes
- Institute of Chemical and Engineering Sciences (ICES), Agency for Science, Technology and Research (A*STAR), 8 Biomedical Grove, #07, Neuros Building, Singapore 138665, Singapore.
| | - Tsz Ying Yuen
- Institute of Chemical and Engineering Sciences (ICES), Agency for Science, Technology and Research (A*STAR), 8 Biomedical Grove, #07, Neuros Building, Singapore 138665, Singapore.
| | - Srinivasaraghavan Kannan
- Bioinformatics Institute (BII), Agency for Science, Technology and Research (A*STAR), 30 Biopolis Street, #07-01 Matrix, Singapore 138671, Singapore.
| | - Pietro Aronica
- Bioinformatics Institute (BII), Agency for Science, Technology and Research (A*STAR), 30 Biopolis Street, #07-01 Matrix, Singapore 138671, Singapore.
| | - Yaw Sing Tan
- Bioinformatics Institute (BII), Agency for Science, Technology and Research (A*STAR), 30 Biopolis Street, #07-01 Matrix, Singapore 138671, Singapore.
| | - Mohan R Pradhan
- Bioinformatics Institute (BII), Agency for Science, Technology and Research (A*STAR), 30 Biopolis Street, #07-01 Matrix, Singapore 138671, Singapore.
| | - Chandra S Verma
- Bioinformatics Institute (BII), Agency for Science, Technology and Research (A*STAR), 30 Biopolis Street, #07-01 Matrix, Singapore 138671, Singapore.
| | | | | | - Hui Wan
- Merck & Co., Inc., Kenilworth, NJ 07033, USA.
| | - Sookhee Ha
- Merck & Co., Inc., Kenilworth, NJ 07033, USA.
| | | | - David P Lane
- p53Lab, Agency for Science, Technology and Research (A*STAR), 8A Biomedical Grove, #06-04/05 Neuros/Immunos, Singapore 138648, Singapore.
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Kusanovic JP, Vargas P, Ferrer F, Díaz F, Córdova V, Martinovic C, Valdés R, Rosas A, Luna D, Silva P, Silva K, Nilo ME, Silva MJ, Espejo E, Zambrano MA, García J, Parra-Lara LG, Escobar MF. Comparison of two identification and susceptibility test kits for Ureaplasma spp and Mycoplasma hominis in amniotic fluid of patients at high risk for intra-amniotic infection. J Matern Fetal Neonatal Med 2019; 33:3409-3417. [PMID: 30786784 DOI: 10.1080/14767058.2019.1572742] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Objective: Ureaplasma urealyticum and Mycoplasma hominis are the most common microorganisms found in the amniotic fluid of patients at risk for preterm delivery. However, culture techniques for genital mycoplasms require special conditions, are barely considered as part of the evaluation of suspected intra-amniotic infection (IAI) and the results are available within 2 and 7 days. The objectives of this study are to validate the use of two commercially available kits (Mycoplasma IES y MYCOFAST® RevolutioN) for the identification of Ureaplasma spp. and Mycoplasma hominis in amniotic fluid, to compare the results of these kits with those obtained by culture and real-time polymerase chain reaction (qPCR) and to report the antibiotic sensitivity profile of the genital mycoplasms identified.Methods: This is a prospective cohort study including women with singleton and twin gestations between 16 and 36 weeks. Patients were admitted to perform an amniocentesis due to pregnancy complications considered at high risk for IAI (e.g. preterm labor with intact membranes, preterm prelabour rupture of membranes, short cervix, etc.), treatment of polyhydramnios, and for the assessment of fetal death and fever without a focus.Results: Overall, 93 patients underwent amniocentesis and 63 had results available for all tests. The prevalence of a positive culture was 6% (4/63). There were four cases of Ureaplasma spp. and none of Mycoplasma hominis. The qPCR identified one case as Ureaplasma spp., one case as Ureaplasma parvum and two cases as Ureaplasma urealyticum. For all tests, the diagnostic performance was as follows: sensitivity 100% [95% CI (39.8-100%)], specificity 100% [95% CI (93.9-100%)], positive predictive value 100% [95% CI (39.8-100%)] and negative predictive value 100% [95% CI (93.9-100%)]. In this cohort, Ureaplasma spp. showed low resistance to erythromycin, but a high resistance to clindamycin and clarithromycin that may change according to the antibiotic concentration.Conclusions: To our knowledge, this is the first study that validates the use of the Mycoplasma IES and MYCOFAST® RevolutioN kits for the identification of genital mycoplasmas in amniotic fluid. The results of these kits are mostly available within 24 hours, have an excellent correlation with those from broth cultures and qPCR and characterize the antibiotic sensitivity profile of the genital mycoplasms identified, providing an opportunity for specific treatment in cases of IAI. Further validation studies in other populations are needed.
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Affiliation(s)
- Juan Pedro Kusanovic
- Center for Research and Innovation in Maternal-Fetal Medicine (CIMAF), Department of Obstetrics and Gynecology, Hospital Sótero del Río, Santiago, Chile.,Division of Obstetrics y Gynecology, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Paula Vargas
- Center for Research and Innovation in Maternal-Fetal Medicine (CIMAF), Department of Obstetrics and Gynecology, Hospital Sótero del Río, Santiago, Chile.,Division of Obstetrics y Gynecology, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Fernando Ferrer
- Center for Research and Innovation in Maternal-Fetal Medicine (CIMAF), Department of Obstetrics and Gynecology, Hospital Sótero del Río, Santiago, Chile.,Division of Obstetrics y Gynecology, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Francisco Díaz
- Center for Research and Innovation in Maternal-Fetal Medicine (CIMAF), Department of Obstetrics and Gynecology, Hospital Sótero del Río, Santiago, Chile
| | - Víctor Córdova
- Center for Research and Innovation in Maternal-Fetal Medicine (CIMAF), Department of Obstetrics and Gynecology, Hospital Sótero del Río, Santiago, Chile
| | - Carolina Martinovic
- Center for Research and Innovation in Maternal-Fetal Medicine (CIMAF), Department of Obstetrics and Gynecology, Hospital Sótero del Río, Santiago, Chile
| | - Rafael Valdés
- Center for Research and Innovation in Maternal-Fetal Medicine (CIMAF), Department of Obstetrics and Gynecology, Hospital Sótero del Río, Santiago, Chile
| | - Alejandra Rosas
- Center for Research and Innovation in Maternal-Fetal Medicine (CIMAF), Department of Obstetrics and Gynecology, Hospital Sótero del Río, Santiago, Chile
| | - Daniela Luna
- Center for Research and Innovation in Maternal-Fetal Medicine (CIMAF), Department of Obstetrics and Gynecology, Hospital Sótero del Río, Santiago, Chile.,Division of Obstetrics y Gynecology, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Pablo Silva
- Center for Research and Innovation in Maternal-Fetal Medicine (CIMAF), Department of Obstetrics and Gynecology, Hospital Sótero del Río, Santiago, Chile.,Division of Obstetrics y Gynecology, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Karla Silva
- Center for Research and Innovation in Maternal-Fetal Medicine (CIMAF), Department of Obstetrics and Gynecology, Hospital Sótero del Río, Santiago, Chile
| | - María Elena Nilo
- Center for Research and Innovation in Maternal-Fetal Medicine (CIMAF), Department of Obstetrics and Gynecology, Hospital Sótero del Río, Santiago, Chile
| | - María José Silva
- Center for Research and Innovation in Maternal-Fetal Medicine (CIMAF), Department of Obstetrics and Gynecology, Hospital Sótero del Río, Santiago, Chile
| | - Eduardo Espejo
- Clinical Laboratory, Hospital Sótero del Río, Santiago, Chile
| | | | - Jhon García
- Centro de Investigaciones Clínicas, Fundación Valle del Lili, Cali, Colombia
| | | | - María Fernanda Escobar
- Obstetrical Intensive Care Unit, Maternal-Infant Department, Fundación Valle del Lili, Cali, Colombia
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Casas F, Valduvieco I, Oses G, Izquierdo L, Archila I, Costa M, Cortes KS, Barreto T, Ferrer F. Postoperative adjuvant and very early salvage radiotherapy after prostatectomy in high-risk prostate cancer patients can improve specific and overall survival. Clin Transl Oncol 2018; 21:355-362. [PMID: 30128953 DOI: 10.1007/s12094-018-1931-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Accepted: 07/30/2018] [Indexed: 11/25/2022]
Abstract
PURPOSE Adjuvant radiotherapy (ART) for biochemical relapse (BR) after radical prostatectomy (RP) showed increased disease-free survival (DFS) in three previous randomized trials. Retrospective phase II trials evaluated if early salvage RT (ESRT) is equivalent to ART. Our study aims to compare ART and ESRT to salvage RT. MATERIALS AND METHODS We compared RP plus ART and ESRT versus SRT. Indication for RT was made by PSA determination after RP: ART when PSA ≤ 0.2 ng/ml, ESRT when PSA ≤ 0.3 after PSA rise from 0.0 to SRT PSA ≥ 0.3. The cause of death of each patients was analyzed, DFS, cause-specific survival (CSS) overall survival (OS) and metastasis-free survival (MFS) in relation to RT intention. RESULTS Between 1993 and 2008, 204 patients with a median age of 65 years (44-75) were treated. The median follow-up was 160 months (28.1-273.3). At diagnosis, 89.7% had localized clinical stages and 90.2% had Gleason (G) ≤ 7. The median PSA was 10 (range 4-101). The postoperative G was ≥ 7 in 66.2%; 56.4% had ≥ 2 positive margins; 29.4% received ART, 20% ESRT and 59.3% SRT. The DFS for ART, ESRT and SRT was 74, 56 and 39% with significant differences between the three groups (p < 0.001). ART + ESRT were combined versus SRT; for the DFS, the significant differences (p < 0.001) remained 67% versus 39%. Positive margins, pT3 and pre-RT PSA were significant factors on multivariate analysis. The CSS in the ART + ESRT group was 92 vs. 78% in the SRT group (p < 0.05). OS was 69% in ART + ESRT vs. 57% in SRT (p < 0.05). MFS was 82.7% in ART + ESRT vs. 67.4% in SRT. CONCLUSIONS In this study the ART + ESRT presented benefits versus SRT in DFS, CSS, OS and MFS.
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Affiliation(s)
- F Casas
- Radiation Oncology Department, Hospital Clínic, Barcelona, Spain.
| | - I Valduvieco
- Radiation Oncology Department, Hospital Clínic, Barcelona, Spain
| | - G Oses
- Radiation Oncology Department, Hospital Clínic, Barcelona, Spain
| | - L Izquierdo
- Urology Department, Hospital Clínic, Barcelona, Spain
| | - I Archila
- Pathology Department, Hospital Clínic, Barcelona, Spain
| | - M Costa
- Urology Department, Hospital Clínic, Barcelona, Spain
| | - K S Cortes
- Radiation Oncology Department, Hospital Clínic, Barcelona, Spain
| | - T Barreto
- Radiation Oncology Department, Hospital Clínic, Barcelona, Spain
| | - F Ferrer
- Radiation Oncology Department, Institut Català d'Oncologia, IDIBELL, Universitat de Barcelona, Barcelona, Spain
- Departament de Ciències Clíniques, Universitat de Barcelona, Barcelona, Spain
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Sawyer TK, Partridge AW, Kaan HYK, Juang YC, Lim S, Johannes C, Yuen TY, Verma C, Kannan S, Aronica P, Tan YS, Sherborne B, Ha S, Hochman J, Chen S, Surdi L, Peier A, Sauvagnat B, Dandliker PJ, Brown CJ, Ng S, Ferrer F, Lane DP. Macrocyclic α helical peptide therapeutic modality: A perspective of learnings and challenges. Bioorg Med Chem 2018; 26:2807-2815. [PMID: 29598901 DOI: 10.1016/j.bmc.2018.03.008] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2018] [Revised: 03/03/2018] [Accepted: 03/06/2018] [Indexed: 12/20/2022]
Abstract
Macrocyclic α-helical peptides have emerged as a compelling new therapeutic modality to tackle targets confined to the intracellular compartment. Within the scope of hydrocarbon-stapling there has been significant progress to date, including the first stapled α-helical peptide to enter into clinical trials. The principal design concept of stapled α-helical peptides is to mimic a cognate (protein) ligand relative to binding its target via an α-helical interface. However, it was the proclivity of such stapled α-helical peptides to exhibit cell permeability and proteolytic stability that underscored their promise as unique macrocyclic peptide drugs for intracellular targets. This perspective highlights key learnings as well as challenges in basic research with respect to structure-based design, innovative chemistry, cell permeability and proteolytic stability that are essential to fulfill the promise of stapled α-helical peptide drug development.
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15
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Chee SMQ, Wongsantichon J, Siau J, Thean D, Ferrer F, Robinson RC, Lane DP, Brown CJ, Ghadessy FJ. Structure-activity studies of Mdm2/Mdm4-binding stapled peptides comprising non-natural amino acids. PLoS One 2017; 12:e0189379. [PMID: 29228061 PMCID: PMC5724825 DOI: 10.1371/journal.pone.0189379] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Accepted: 11/24/2017] [Indexed: 11/24/2022] Open
Abstract
As primary p53 antagonists, Mdm2 and the closely related Mdm4 are relevant cancer therapeutic targets. We have previously described a series of cell-permeable stapled peptides that bind to Mdm2 with high affinity, resulting in activation of the p53 tumour suppressor. Within this series, highest affinity was obtained by modification of an obligate tryptophan residue to the non-natural L-6-chlorotryptophan. To understand the structural basis for improved affinity we have solved the crystal structure of this stapled peptide (M011) bound to Mdm2 (residues 6–125) at 1.66 Å resolution. Surprisingly, near identity to the structure of a related peptide (M06) without the 6-chloro modification is observed. Further analysis of linear and stapled peptides comprising 6-Me-tryptophan provides mechanistic insight into dual Mdm2/Mdm4 antagonism and confirms L98 of Mdm4 as a mutable steric gate. The results also highlight a possible role of the flexible hinge region in determining Mdm2/Mdm4 plasticity.
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Affiliation(s)
- Sharon Min Qi Chee
- p53Lab, Agency for Science Technology and Research (A*STAR), Singapore, Singapore
| | | | - Jiawei Siau
- p53Lab, Agency for Science Technology and Research (A*STAR), Singapore, Singapore
| | - Dawn Thean
- p53Lab, Agency for Science Technology and Research (A*STAR), Singapore, Singapore
| | - Fernando Ferrer
- p53Lab, Agency for Science Technology and Research (A*STAR), Singapore, Singapore
| | - Robert C. Robinson
- Institute of Molecular and Cellular Biology, A*STAR, Singapore, Singapore
| | - David P. Lane
- p53Lab, Agency for Science Technology and Research (A*STAR), Singapore, Singapore
| | - Christopher J. Brown
- p53Lab, Agency for Science Technology and Research (A*STAR), Singapore, Singapore
- * E-mail: (CJB); (FJG)
| | - Farid J. Ghadessy
- p53Lab, Agency for Science Technology and Research (A*STAR), Singapore, Singapore
- * E-mail: (CJB); (FJG)
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16
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Zee RS, Makari JH, Ferrer F, Herndon CDA. Epispadias repair with tunica vaginalis flap. J Pediatr Urol 2017; 13:523-524. [PMID: 28689649 DOI: 10.1016/j.jpurol.2017.05.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Accepted: 05/29/2017] [Indexed: 10/19/2022]
Abstract
INTRODUCTION Primary epispadias is a rare congenital malformation that afflicts about 1 in 80,000 children. The surgical repair, originally described by Cantwell over 100 years ago, is fundamentally sound and incorporates several important steps to achieve an optimal result. METHODS A 9-month-old male with penopubic epispadias presented for surgical repair. Pre-operative imaging included a normal renal ultrasound and voiding cystourethrogram that demonstrated a moderate-sized bladder, partially competent bladder neck, and no vesicoureteral reflux. A modified Cantwell-Ransley approach to the repair was performed without complete disassembly of the penis. Established surgical principles of identification of laterally placed neurovascular bundles, preservation of the ventral mesentery to the urethral plate, mobilization of the urethral plate off the corporal bodies with ventral relocation, and dorsal medial rotation of the corporal bodies are demonstrated in this video. RESULTS This procedure was performed as an outpatient. The patient had an unremarkable postoperative course. The #6-French urethral stent was removed on postoperative day 10. CONCLUSIONS This video demonstrates a modified Cantwell-Ransley technique for epispadias repair, which employs a tunica vaginalis flap to reinforce the urethral repair. The adherence to surgical principles described by Cantwell in the late 1800s for children with primary epispadias continues to lead optimal surgical outcomes.
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Affiliation(s)
- R S Zee
- Department of Urology, University of Virginia School of Medicine, Charlottesville, VA, USA.
| | - J H Makari
- New York Medical College, Hartford, CT, USA
| | | | - C D A Herndon
- Department of Surgery, Division of Urology, Virginia Commonwealth University, Richmond, VA, USA
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17
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Ferrer F, Pont A, De Blas R, Boladeras A, Garin O, Ventura M, Garcia E, Gutierrez C, Zardoya E, Rojas F, Bavestrello P, Laplana M, Mases J, Castells M, Guix I, Suarez J, Picon C, Pera J, Ferrer M, Guedea F. Toxicity and Quality of Life (QoL) Comparison between Two Escalation Dose Fractionation Protocols With Steroatactic Body Radiation Therapy in Prostate Cancer. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.1155] [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]
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18
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Kusanovic JP, Romero R, Martinovic C, Silva K, Erez O, Maymon E, Díaz F, Ferrer F, Valdés R, Córdova V, Vargas P, Nilo ME, Le Cerf P. Transabdominal collection of amniotic fluid "sludge" and identification of Candida albicans intra-amniotic infection. J Matern Fetal Neonatal Med 2017; 31:1279-1284. [PMID: 28376638 DOI: 10.1080/14767058.2017.1315095] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
A G3P2 patient who conceived while using an intrauterine contraceptive device (IUD) presented at 20 weeks of gestation with mild irregular uterine contractions and vaginal bleeding. Sonographic examination at admission showed the presence of dense amniotic fluid "sludge" and a long sonographic uterine cervix (42 mm). To assess the microbiologic significance of amniotic fluid "sludge", we performed a transabdominal amniocentesis. The procedure was performed under real-time ultrasound, and fluid resembling pus at gross examination was noted. Rapid amniotic fluid analysis showed the presence of a high white blood cell count and structures resembling hyphae. Amniotic fluid cultures were positive for Candida albicans. Treatment was begun with broad-spectrum antibiotics, including Fluconazole, upon the visualization of pus in the "sludge" material because of the presence of hyphae in the Gram stain. Despite treatment, the patient went into spontaneous preterm labor and delivered five days after admission. Placental examination revealed acute fungal histologic chorioamnionitis and funisitis. This represents the first report of transabdominal collection and analysis of amniotic fluid "sludge" and the microbiologic detection of Candida albicans in this material. This report provides evidence that transabdominal retrieval of "sludge" is possible and may be of significant value for patient management and selection of antimicrobial agents.
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Affiliation(s)
- Juan P Kusanovic
- a Department of Obstetrics and Gynecology, Sótero del Río Hospital , Center for Research and Innovation in Maternal-Fetal Medicine (CIMAF) , Santiago , Chile.,b Division of Obstetrics and Gynecology, Faculty of Medicine , Pontificia Universidad Católica de Chile , Santiago , Chile.,c Perinatology Research Branch, Program for Perinatal Research and Obstetrics, Division of Intramural Research , Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, MD, and Detroit , MI , USA
| | - Roberto Romero
- c Perinatology Research Branch, Program for Perinatal Research and Obstetrics, Division of Intramural Research , Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, MD, and Detroit , MI , USA.,d Department of Obstetrics and Gynecology , University of Michigan , Ann Arbor , MI , USA.,e Department of Epidemiology and Biostatistics , Michigan State University , East Lansing , MI , USA.,f Department of Molecular Obstetrics and Genetics , Wayne State University , Detroit , MI , USA
| | - Carolina Martinovic
- a Department of Obstetrics and Gynecology, Sótero del Río Hospital , Center for Research and Innovation in Maternal-Fetal Medicine (CIMAF) , Santiago , Chile
| | - Karla Silva
- a Department of Obstetrics and Gynecology, Sótero del Río Hospital , Center for Research and Innovation in Maternal-Fetal Medicine (CIMAF) , Santiago , Chile
| | - Offer Erez
- c Perinatology Research Branch, Program for Perinatal Research and Obstetrics, Division of Intramural Research , Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, MD, and Detroit , MI , USA.,g Department of Obstetrics and Gynecology , Wayne State University School of Medicine , Detroit , MI , USA
| | - Eli Maymon
- c Perinatology Research Branch, Program for Perinatal Research and Obstetrics, Division of Intramural Research , Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services, Bethesda, MD, and Detroit , MI , USA.,g Department of Obstetrics and Gynecology , Wayne State University School of Medicine , Detroit , MI , USA
| | - Francisco Díaz
- a Department of Obstetrics and Gynecology, Sótero del Río Hospital , Center for Research and Innovation in Maternal-Fetal Medicine (CIMAF) , Santiago , Chile
| | - Fernando Ferrer
- a Department of Obstetrics and Gynecology, Sótero del Río Hospital , Center for Research and Innovation in Maternal-Fetal Medicine (CIMAF) , Santiago , Chile.,b Division of Obstetrics and Gynecology, Faculty of Medicine , Pontificia Universidad Católica de Chile , Santiago , Chile
| | - Rafael Valdés
- a Department of Obstetrics and Gynecology, Sótero del Río Hospital , Center for Research and Innovation in Maternal-Fetal Medicine (CIMAF) , Santiago , Chile
| | - Víctor Córdova
- a Department of Obstetrics and Gynecology, Sótero del Río Hospital , Center for Research and Innovation in Maternal-Fetal Medicine (CIMAF) , Santiago , Chile
| | - Paula Vargas
- a Department of Obstetrics and Gynecology, Sótero del Río Hospital , Center for Research and Innovation in Maternal-Fetal Medicine (CIMAF) , Santiago , Chile.,b Division of Obstetrics and Gynecology, Faculty of Medicine , Pontificia Universidad Católica de Chile , Santiago , Chile
| | - María Elena Nilo
- a Department of Obstetrics and Gynecology, Sótero del Río Hospital , Center for Research and Innovation in Maternal-Fetal Medicine (CIMAF) , Santiago , Chile
| | - Patricio Le Cerf
- h Department of Pathology , Sótero del Río Hospital , Santiago , Chile
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Lockwood G, Ferrer F, Makari J. Bilateral Wilms Tumor With Ureteral Extension. Urology 2017; 102:219-221. [PMID: 28063884 DOI: 10.1016/j.urology.2016.12.046] [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] [Received: 09/15/2016] [Revised: 12/21/2016] [Accepted: 12/22/2016] [Indexed: 10/20/2022]
Abstract
Wilms tumor is the most common renal tumor in children. However, tumor extension into the ureter is exceedingly rare. We present a case of bilateral Wilms tumor with unilateral ureteral extension into the bladder. This case illustrates the importance of thoughtful diagnostic evaluation and surgical planning to obtain a good oncologic outcome while preserving renal function.
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Affiliation(s)
- Gina Lockwood
- Department of Surgery, Division of Pediatric Urology, Connecticut Children's Medical Center, Hartford, CT; School of Medicine, University of Connecticut, Farmington, CT.
| | - Fernando Ferrer
- School of Medicine, University of Connecticut, Farmington, CT
| | - John Makari
- Department of Surgery, Division of Pediatric Urology, Connecticut Children's Medical Center, Hartford, CT; School of Medicine, University of Connecticut, Farmington, CT
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Ehrlich PF, Hamilton TE, Gow K, Barnhart D, Ferrer F, Kandel J, Glick R, Dasgupta R, Naranjo A, He Y, Perlman EJ, Kalapurakal JA, Khanna G, Dome JS, Geller J, Mullen E. Surgical protocol violations in children with renal tumors provides an opportunity to improve pediatric cancer care: a report from the Children's Oncology Group. Pediatr Blood Cancer 2016; 63:1905-10. [PMID: 27229358 PMCID: PMC5030129 DOI: 10.1002/pbc.26083] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [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] [Received: 02/10/2016] [Revised: 03/31/2016] [Accepted: 04/26/2016] [Indexed: 01/07/2023]
Abstract
BACKGROUND The purpose of this study was to evaluate the frequency and characteristics of surgical protocol violations (SPVs) among children undergoing surgery for renal tumors who were enrolled on the Children's Oncology Group (COG) renal tumor biology and classification study AREN03B2. METHODS AREN03B2 was opened in February 2006, and as on March 31, 2013, there were 3,664 eligible patients. The surgical review forms for 3,536 patients with unilateral disease were centrally reviewed for SPVs. The frequency, type, number of violations, institutional prevalence, and quartiles for SPVs were assessed. RESULTS Of the 3,536 patients, there were a total of 505 with at least one SPV (564 total SPVs reported), for an overall incidence of 14.28%. The types of SPVs included a lack of lymph node sampling in 365 (64.7%), avoidable spill in 61 (10.8%), biopsy immediately before nephrectomy in 89 (15.8%), an incorrect abdominal incision in 32 (5.7%), and unnecessary resection of organs in 17 (3.0%). The SPVs occurred in 163 of 215 participating institutions (75.8%). For centers with at least one SPV, the mean number of SPVs reported was 3.10 ± 2.39 (mean ± standard deviation). The incidence of protocol violation per institution ranged from 0 to 67%. Centers with an average of ≤1 case/year had an incidence of SPVs of 12.2 ± 3.8%, those with an average of >1 to <4 cases/year had an incidence of SPVs of 16.4 ± 3.6%, and those with an average of ≥4 cases/year had an incidence of SPVs of 12.6 ± 5.5% (P > 0.05). CONCLUSIONS SPVs that potentially result in additional exposure to chemotherapy and radiation therapy are not uncommon in children undergoing resection of renal malignancies.
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Affiliation(s)
| | - Thomas E. Hamilton
- Dana Farber Cancer Institute, Boston Children's Hospital, Boston, MA, USA
| | - Kenneth Gow
- Seattle Children's Hospital, Seattle, WA, USA
| | | | | | - Jessica Kandel
- Comer Children's Hospital University of Chicago, Chicago IL, USA
| | - Richard Glick
- Steven and Alexandra Cohen Medical Center of New York, New York, NY, USA
| | | | - Arlene Naranjo
- Children's Oncology Group (COG) Statistics and Data Center (SDC), University of Florida, Gainesville, FL, USA
| | - Ying He
- Clarkson University, Potsdam NY, USA
| | - Elizabeth J. Perlman
- Luire Children's Hospital Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - John A. Kalapurakal
- Luire Children's Hospital Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | | | | | - James Geller
- Cincinnati Children's Hospital, Cincinnati, OH, USA
| | - Elizabeth Mullen
- Dana Farber Cancer Institute, Boston Children's Hospital, Boston, MA, USA
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Casas F, Henríquez I, Bejar A, Maldonado X, Alvarez A, González-Sansegundo C, Boladeras A, Ferrer F, Hervás A, Herruzo I, Caro M, Rodriguez I, Ferrer C. Intermittent versus continuous androgen deprivation therapy to biochemical recurrence after external beam radiotherapy: a phase 3 GICOR study. Clin Transl Oncol 2016; 19:373-378. [DOI: 10.1007/s12094-016-1538-5] [Citation(s) in RCA: 7] [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: 07/02/2016] [Accepted: 07/25/2016] [Indexed: 11/12/2022]
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22
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Boladeras A, Ferrer F, Navarro V, De Blas R, Cunillera O, Mateo D, Gutierrez C, Villa S, Martinez E, Pera J, Ferrer M, Guedea F. Association Between Dose-Volume Histograms and Health-Related Quality of Life in Patients with Prostate Cancer Treated with External Beam Radiation Therapy. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.1340] [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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Ferrer F, Ballon K, Boladeras A, De Blas R, Najjari D, Ventura M, Bavestrello P, Rojas F, Bejar S, Zardoya E, Martinez E, Comas S, Gutierrez C, Pera J, Picon C, Guedea F. Pelvic Volumetric Modulated Arc Therapy (VMAT) for Prostate for Locally Advanced Prostate Cancer. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.1249] [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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Ferrer F, Pont A, Letelier H, Garin O, De Blas R, Boladeras A, Garcia E, Zardoya E, Najjari D, Gonzalo P, Castells M, Mariño A, Gutierrez C, Ventura M, Rojas F, Bavestrello P, Suarez J, Picon C, Guedea F. Early Experience and Quality of Life Comparison in Prostate Cancer Brachytherapy Versus Phase I-II Stereotactic Body Radiation Therapy Trials. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.1285] [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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Murcia L, Carrilero B, Ferrer F, Roig M, Franco F, Segovia M. Success of benznidazole chemotherapy in chronic Trypanosoma cruzi-infected patients with a sustained negative PCR result. Eur J Clin Microbiol Infect Dis 2016; 35:1819-1827. [DOI: 10.1007/s10096-016-2733-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2016] [Accepted: 07/13/2016] [Indexed: 12/24/2022]
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Ferrer F. The successes, failures, advantages and limitations of the cooperative oncology study groups in pediatric urologic oncology. Urol Oncol 2016; 34:63-4. [DOI: 10.1016/j.urolonc.2015.11.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Revised: 11/05/2015] [Accepted: 11/06/2015] [Indexed: 11/29/2022]
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Ferrer F, Mendez G, Chiruzzi C, Letelier H, Boladeras A, De Blas R, Piñeiro R, Galdeano M, Najjari D, Zardoya E, Chavez R, Ventura M, Martinez E, Gutierrez C, Picon C, Pera J, Guedea F. Overall Treatment Time and Charlson Score Impact on Toxicity of Intensity Modulated Arc Therapy With Simultaneous Integrated Boost to Prostate for Intermediate- or High-Risk Prostate Cancer. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.1084] [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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Li MH, Swenson R, Harel M, Jana S, Stolarzewicz E, Hla T, Shapiro LH, Ferrer F. Antitumor Activity of a Novel Sphingosine-1-Phosphate 2 Antagonist, AB1, in Neuroblastoma. J Pharmacol Exp Ther 2015; 354:261-8. [PMID: 26105954 DOI: 10.1124/jpet.115.224519] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2015] [Accepted: 06/22/2015] [Indexed: 12/21/2022] Open
Abstract
The bioactive lipid sphingosine-1-phosphate (S1P) and its receptors (S1P1-5) play critical roles in many pathologic processes, including cancer. The S1P axis has become a bona fide therapeutic target in cancer. JTE-013 [N-(2,6-dichloro-4-pyridinyl)-2-[1,3-dimethyl-4-(1-methylethyl)-1H-pyrazolo[3,4-b]pyridin-6-yl]-hydrazinecarboxamide], a known S1P2 antagonist, suffers from instability in vivo. Structurally modified, more potent, and stable S1P2 inhibitors would be desirable pharmacological tools. One of the JTE-013 derivatives, AB1 [N-(1H-4-isopropyl-1-allyl-3-methylpyrazolo[3,4-b]pyridine-6-yl)-amino-N'-(2,6-dichloropyridine-4-yl) urea], exhibited improved S1P2 antagonism compared with JTE-013. Intravenous pharmacokinetics indicated enhanced stability or slower clearance of AB1 in vivo. Migration assays in glioblastoma showed that AB1 was slightly more effective than JTE-013 in blocking S1P2-mediated inhibition of cell migration. Functional studies in the neuroblastoma (NB) cell line SK-N-AS showed that AB1 displayed potency at least equivalent to JTE-013 in affecting signaling molecules downstream of S1P2. Similarly, AB1 inhibition of the growth of SK-N-AS tumor xenografts was improved compared with JTE-013. Cell viability assays excluded that this enhanced AB1 effect is caused by inhibition of cancer cell survival. Both JTE-013 and AB1 trended to inhibit (C-C motif) ligand 2 expression and were able to significantly inhibit subsequent tumor-associated macrophage infiltration in NB xenografts. Interestingly, AB1 was more effective than JTE-013 in inhibiting the expression of the profibrotic mediator connective tissue growth factor. The terminal deoxynucleotidyl transferase-mediated digoxigenin-deoxyuridine nick-end labeling assay and cleaved caspase-3 detection further demonstrated that apoptosis was increased in AB1-treated NB xenografts compared with JTE-013. Overall, the modification of JTE-013 to produce the AB1 compound improved potency, intravenous pharmacokinetics, cellular activity, and antitumor activity in NB and may have enhanced clinical and experimental applicability.
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Affiliation(s)
- Mei-Hong Li
- Center for Vascular Biology, University of Connecticut Health Center, Farmington, Connecticut (M.-H.L., L.H.S., F.F.); Arroyo Biosciences, LLC, Princeton, New Jersey (R.S.); Department of Urology and Surgery, Connecticut Children's Medical Center, Hartford, Connecticut (M.H., F.F.); TCG Life Sciences Limited, Hinjewadi, Pune, India (S.J.); Chem-Master International Inc., Stony Brook, New York (E.S.); and Department of Pathology and Laboratory Medicine, Center for Vascular Biology, Weill Medical College of Cornell University, New York, New York (T.H.)
| | - Rolf Swenson
- Center for Vascular Biology, University of Connecticut Health Center, Farmington, Connecticut (M.-H.L., L.H.S., F.F.); Arroyo Biosciences, LLC, Princeton, New Jersey (R.S.); Department of Urology and Surgery, Connecticut Children's Medical Center, Hartford, Connecticut (M.H., F.F.); TCG Life Sciences Limited, Hinjewadi, Pune, India (S.J.); Chem-Master International Inc., Stony Brook, New York (E.S.); and Department of Pathology and Laboratory Medicine, Center for Vascular Biology, Weill Medical College of Cornell University, New York, New York (T.H.)
| | - Miriam Harel
- Center for Vascular Biology, University of Connecticut Health Center, Farmington, Connecticut (M.-H.L., L.H.S., F.F.); Arroyo Biosciences, LLC, Princeton, New Jersey (R.S.); Department of Urology and Surgery, Connecticut Children's Medical Center, Hartford, Connecticut (M.H., F.F.); TCG Life Sciences Limited, Hinjewadi, Pune, India (S.J.); Chem-Master International Inc., Stony Brook, New York (E.S.); and Department of Pathology and Laboratory Medicine, Center for Vascular Biology, Weill Medical College of Cornell University, New York, New York (T.H.)
| | - Sampa Jana
- Center for Vascular Biology, University of Connecticut Health Center, Farmington, Connecticut (M.-H.L., L.H.S., F.F.); Arroyo Biosciences, LLC, Princeton, New Jersey (R.S.); Department of Urology and Surgery, Connecticut Children's Medical Center, Hartford, Connecticut (M.H., F.F.); TCG Life Sciences Limited, Hinjewadi, Pune, India (S.J.); Chem-Master International Inc., Stony Brook, New York (E.S.); and Department of Pathology and Laboratory Medicine, Center for Vascular Biology, Weill Medical College of Cornell University, New York, New York (T.H.)
| | - Erik Stolarzewicz
- Center for Vascular Biology, University of Connecticut Health Center, Farmington, Connecticut (M.-H.L., L.H.S., F.F.); Arroyo Biosciences, LLC, Princeton, New Jersey (R.S.); Department of Urology and Surgery, Connecticut Children's Medical Center, Hartford, Connecticut (M.H., F.F.); TCG Life Sciences Limited, Hinjewadi, Pune, India (S.J.); Chem-Master International Inc., Stony Brook, New York (E.S.); and Department of Pathology and Laboratory Medicine, Center for Vascular Biology, Weill Medical College of Cornell University, New York, New York (T.H.)
| | - Timothy Hla
- Center for Vascular Biology, University of Connecticut Health Center, Farmington, Connecticut (M.-H.L., L.H.S., F.F.); Arroyo Biosciences, LLC, Princeton, New Jersey (R.S.); Department of Urology and Surgery, Connecticut Children's Medical Center, Hartford, Connecticut (M.H., F.F.); TCG Life Sciences Limited, Hinjewadi, Pune, India (S.J.); Chem-Master International Inc., Stony Brook, New York (E.S.); and Department of Pathology and Laboratory Medicine, Center for Vascular Biology, Weill Medical College of Cornell University, New York, New York (T.H.)
| | - Linda H Shapiro
- Center for Vascular Biology, University of Connecticut Health Center, Farmington, Connecticut (M.-H.L., L.H.S., F.F.); Arroyo Biosciences, LLC, Princeton, New Jersey (R.S.); Department of Urology and Surgery, Connecticut Children's Medical Center, Hartford, Connecticut (M.H., F.F.); TCG Life Sciences Limited, Hinjewadi, Pune, India (S.J.); Chem-Master International Inc., Stony Brook, New York (E.S.); and Department of Pathology and Laboratory Medicine, Center for Vascular Biology, Weill Medical College of Cornell University, New York, New York (T.H.)
| | - Fernando Ferrer
- Center for Vascular Biology, University of Connecticut Health Center, Farmington, Connecticut (M.-H.L., L.H.S., F.F.); Arroyo Biosciences, LLC, Princeton, New Jersey (R.S.); Department of Urology and Surgery, Connecticut Children's Medical Center, Hartford, Connecticut (M.H., F.F.); TCG Life Sciences Limited, Hinjewadi, Pune, India (S.J.); Chem-Master International Inc., Stony Brook, New York (E.S.); and Department of Pathology and Laboratory Medicine, Center for Vascular Biology, Weill Medical College of Cornell University, New York, New York (T.H.)
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De Smedt C, Ferrer F, Leus K, Spanoghe P. Removal of Pesticides from Aqueous Solutions by Adsorption on Zeolites as Solid Adsorbents. ADSORPT SCI TECHNOL 2015. [DOI: 10.1260/0263-6174.33.5.457] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Affiliation(s)
- C. De Smedt
- Laboratory of Crop Protection Chemistry, Faculty of Bio-Science Engineering, Ghent University, Coupure Links 653, 9000 Ghent, Belgium
| | - F. Ferrer
- Lab Ferrer, Ferran Catolic 3, 25200 Cervera Lleida, Spain
| | - K. Leus
- Department of Inorganic and Physical Chemistry, Center for Ordered Materials, Organometallics and Catalysis (COMOC), Ghent University, Krijgslaan 281-S3, 9000 Ghent, Belgium
| | - P. Spanoghe
- Laboratory of Crop Protection Chemistry, Faculty of Bio-Science Engineering, Ghent University, Coupure Links 653, 9000 Ghent, Belgium
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Ferrer F, Mendez M, Letelier H, Boladeras A, Piñeiro R, Chiruzzi C, Galdeano M, Najjari D, Sancho I, Chavez R, Picon C, Pera J, Guedea F. EP-1229: Overall treatment time and toxicity of IMAT with integrated boost for intermediate or high-risk prostate cancer. Radiother Oncol 2015. [DOI: 10.1016/s0167-8140(15)41221-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Sanchez-de-la-Torre M, Nadal N, Cortijo A, Masa J, Duran-Cantolla J, Valls J, Serra S, Sanchez-de-la-Torre A, Gracia M, Ferrer F, Lorente I, Urgeles MC, Alonso T, Fuentes A, Armengol F, Lumbierres M, Vazquez-Polo FJ, Barbe F, Paredes E, Roquet N, Lavega M, Sangra J, Tribo N, Malla B, Obis E, Juni C, Regany M, Minguez O, Pasual L, Gomez S, Castro A, Tarraubella N, Turino C, Negrin MA. Role of primary care in the follow-up of patients with obstructive sleep apnoea undergoing CPAP treatment: a randomised controlled trial. Thorax 2015; 70:346-52. [DOI: 10.1136/thoraxjnl-2014-206287] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Riemenschneider M, Makari J, Rochon C, Ferrer F, D'Alessandri-Silva C. Erratum to: Mass in failed renal allograft: Question. Pediatr Nephrol 2015; 30:539. [PMID: 25288410 DOI: 10.1007/s00467-014-2972-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Molly Riemenschneider
- Department of Nephrology, Connecticut Children's Medical Center, 282 Washington Street, Hartford, CT, 06106, USA,
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Avila MM, Pardo Y, Castells M, Ferrer F, Boladeras A, Pera J, Prada P, Guix B, de Paula B, Hernandez H, Pont A, Alonso J, Garin O, Ferrer M. Obtaining Indirect Utilities with the Sf-6d and the Porpus-U in Prostate Cancer Patients. Value Health 2014; 17:A646. [PMID: 27202321 DOI: 10.1016/j.jval.2014.08.2342] [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] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Affiliation(s)
- M M Avila
- IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain
| | - Y Pardo
- IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain
| | - M Castells
- Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat, Spain
| | - F Ferrer
- Institut Català d'Oncologia, L'Hospitalet de Llobregat, Spain
| | - A Boladeras
- Institut Català d'Oncologia, L'Hospitalet de Llobregat, Spain
| | - J Pera
- Institut Català d'Oncologia, L'Hospitalet de Llobregat, Spain
| | - P Prada
- Hospital Universitario Central de Asturias, Oviedo, Spain
| | - B Guix
- Fundación IMOR, Barcelona, Spain
| | - B de Paula
- Instituto Oncológico de Guipúzcoa, Gipuzkoa, Spain
| | - H Hernandez
- Hospital Meixoeiro- Complejo CHUVI, Vigo, Spain
| | - A Pont
- IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain
| | - J Alonso
- IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain
| | - O Garin
- IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain
| | - M Ferrer
- IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain
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Pineiro Retif R, Navarro A, Lozano A, Ferrer F, Eraso A, Galdeano M, Najjari D, de Blas Piñol R, Martínez Pimienta G, Bavestrello P, Rojas F, Leaman O, Letelier H, Guedea Edo F. Local Control Evaluation in Bone Metastases Treated With Stereotactic Body Radiation Therapy: Initial Experience. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.2570] [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: 10/24/2022]
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Li MH, Harel M, Hla T, Ferrer F. Induction of chemokine (C-C motif) ligand 2 by sphingosine-1-phosphate signaling in neuroblastoma. J Pediatr Surg 2014; 49:1286-91. [PMID: 25092091 PMCID: PMC4122984 DOI: 10.1016/j.jpedsurg.2014.04.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [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: 07/26/2013] [Revised: 03/02/2014] [Accepted: 04/04/2014] [Indexed: 01/25/2023]
Abstract
BACKGROUND/PURPOSE Neuroblastoma (NB) is the most common extracranial solid tumor of childhood. Preliminary data derived from a human angiogenesis array in NB showed that the bioactive lipid sphingosine-1-phosphate (S1P) induced the secretion of several angiogenesis-related proteins including the important inflammatory factor chemokine (C-C motif) ligand 2 (CCL2). In the present study, we investigated the mechanism of S1P-induced CCL2 expression in NB. METHODS Quantitative real-time PCR and CCL2 ELISA were conducted to detect the mRNA expression and protein secretion of CCL2 in NB cells. Gain and loss of function studies were performed by using specific S1PR antagonists, adenoviral transduction and siRNA transfection. Macrophage F4/80 receptor in NB xenografts was detected by quantitative real-time PCR and immunohistochemistry staining. RESULTS S1P induced CCL2 mRNA expression and protein secretion in a time- and concentration-dependent manner in NB cells. Blockade of S1P2 signaling using the selective S1P2 antagonist JTE-013 inhibited S1P-induced CCL2 expression. Overexpression of S1P2 by adenoviral transduction increased CCL2 secretion while knockdown of S1P2 by siRNA transfection decreased S1P-induced CCL2 secretion in NB cells. Macrophage infiltration, as detected by F4/80 staining, was significantly decreased in JTE-013-treated NB xenografts. CONCLUSIONS Taken together, our data for the first time demonstrate that S1P induced the macrophage-recruiting factor CCL2 expression in NB cells via S1P2, providing new insights into the complicated functions of S1P2 in cancer.
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Affiliation(s)
- Mei-Hong Li
- Center for Vascular Biology, University of Connecticut Health Center, Farmington, CT 06030.
| | - Miriam Harel
- Department of Urology and Surgery, Connecticut Children's Medical Center, Hartford, CT 06106
| | - Timothy Hla
- Center for Vascular Biology, Department of Pathology and Laboratory Medicine, Weill Medical College of Cornell University, New York, NY 10065
| | - Fernando Ferrer
- Center for Vascular Biology, University of Connecticut Health Center, Farmington, CT 06030; Department of Urology and Surgery, Connecticut Children's Medical Center, Hartford, CT 06106.
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Pereyra CJ, Ferrer F, Marotti RE, Gómez C, Campo L, Amy LI, Martín F, Leinen D, Ramos-Barrado JR, Dalchiele EA. Optical Properties of CdS and CdTe Sensitized ZnO Nanorods. ACTA ACUST UNITED AC 2014. [DOI: 10.1557/opl.2014.577] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
ABSTRACTOptical properties of ZnO-CdTe electrochemically prepared on a core-shell nanostructure (NS) were studied. Numerical simulations based on effective medium approximation give higher absorption than ZnO-CdS samples and a sensitive dependence on CdTe content. The absorption edges for deep black samples found by transmittance (T(λ)) and diffuse reflectance (Rdiff(λ)) measurements were at 1.33eV and 1.55eV, respectively. A split-off band edge was also found by Rdiff(λ) at ∼2.5eV. The red shift observed in T(λ), previously observed in ZnO-CdS, and may confirm the enhancement of sub-bandgap absorption due to the NS nature of samples.
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Ferrer F. Computerized tomography staging of renal tumors-does it make the surgeon obsolete? J Urol 2014; 192:6-7. [PMID: 24747656 DOI: 10.1016/j.juro.2014.04.040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/11/2014] [Indexed: 10/25/2022]
Affiliation(s)
- Fernando Ferrer
- Division of Pediatric Urology, Connecticut Children's Medical Center, Department of Surgery, University of Connecticut School of Medicine, Hartford, Connecticut
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Affiliation(s)
- Peter F Ehrlich
- Department of Surgery, University of Michigan Medical School, Ann Arbor, Michigan, and Surgery Renal Tumors Committee, Children's Oncology Group
| | - Fernando Ferrer
- Division Pediatric Urology, Connecticut Children's Medical Center, and Department of Surgery, University of Connecticut School of Medicine, Farmington, Connecticut
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Ferrer F, Guedea F, Pardo Y, Ferrer M, Suarez J, Hervás A, Mariño A, Herruzo I, Ortiz M, Sancho G. Quality of Life Impact of Treatments for Localized Prostate Cancer. Int J Radiat Oncol Biol Phys 2013. [DOI: 10.1016/j.ijrobp.2013.06.982] [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: 10/26/2022]
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Ferrer F, Boladeras A, Piñeiro R, De Blas R, Nuñez M, Del Carpio A, Bejar S, Zardoya E, Picon C, Gueda F. Early Toxicity Assessment of Pelvic Volumetric Modulated Arc Therapy (VMAT) With Hypofractionated Simultaneous Integrated Boost to Prostate for High-Risk Prostate Cancer. Int J Radiat Oncol Biol Phys 2013. [DOI: 10.1016/j.ijrobp.2013.06.1017] [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: 10/26/2022]
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41
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Riou O, Castan F, Picaud F, Gutiérrez C, Llacer Moscardo C, Dubois J, Cambray M, Lemanski C, Guedea F, Azria D, Ferrer F, Delannes M. Curiethérapie du cancer du canal anal : une étude multicentrique du Groupe d’oncologie Catalan Occitan. Cancer Radiother 2013. [DOI: 10.1016/j.canrad.2013.07.010] [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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Li MH, Hla T, Ferrer F. FTY720 inhibits tumor growth and enhances the tumor-suppressive effect of topotecan in neuroblastoma by interfering with the sphingolipid signaling pathway. Pediatr Blood Cancer 2013; 60:1418-23. [PMID: 23704073 PMCID: PMC3751174 DOI: 10.1002/pbc.24564] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [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] [Received: 08/30/2012] [Accepted: 03/21/2013] [Indexed: 02/03/2023]
Abstract
BACKGROUND Neuroblastoma (NB) is the most common extra-cranial solid tumor in childhood. Poor outcomes for children with advanced disease underscore the need for novel therapeutic strategies. FTY720, an immunomodulating drug approved for multiple sclerosis, has been investigated in oncology with promising preclinical activities. To date, its effect in NB has not been explored. Herein we describe our preclinical experience with FTY720, alone or in combination with topotecan, and its putative mechanism of action in NB. PROCEDURE MTT assay was performed to assess the effect of FTY720 on cell viability. A NB xenograft model was employed to assess the efficacy of FTY720 on tumor growth. Quantitative real-time PCR and Western blot were employed to determine changes of mRNA and protein expression, respectively. Liquid chromatography/tandem mass spectrometry was used to measure sphingolipid levels. RESULTS FTY720, but not FTY720-P induced NB cell death. FTY720 inhibited the growth of NB xenografts and enhanced the tumor-suppressive effect of topotecan both in vitro and in vivo. FTY720 significantly inhibited sphingosine kinase 2 (SphK2) mRNA and protein expression in NB cells. Pro-apoptotic sphingosine levels were increased in NB cells and NB xenografts treated with FTY720. FTY720-induced cell death was caspase-independent and involved the dephosphorylation of Akt and BAD at Ser136. CONCLUSIONS Our data demonstrate that FTY720 has potent preclinical anti-cancer activity in NB. Its unique death signaling mechanism, interference with the sphingolipid pathway, acts cooperatively with that of topotecan, suggesting that FTY720 related molecules may be useful in NB treatment.
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Affiliation(s)
- Mei-Hong Li
- University of Connecticut Health Center, Center for Vascular Biology, Farmington, Connecticut
| | - Timothy Hla
- Department of Pathology and Laboratory Medicine, Center for Vascular Biology, Weill Medical College of Cornell University, New York, New York
| | - Fernando Ferrer
- University of Connecticut Health Center, Center for Vascular Biology, Farmington, Connecticut,Department of Urology and Surgery, Connecticut Children's Medical Center, Hartford, Connecticut,Correspondence to: Fernando Ferrer, Department of Urology and Surgery, Connecticut Children's Medical Center, 282 Washington Street, Hartford, CT 06106.
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Daidone A, Gutierrez C, Martinez E, Pera J, Pino F, Gullon C, Castells M, Núñez M, del Carpio A, Boladeras A, Ferrer F. Permanent-seed-brachytherapy in prostate cancer: The Catalan-institute-of-oncology experience. Rep Pract Oncol Radiother 2013. [DOI: 10.1016/j.rpor.2013.03.046] [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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Boladeras Inglada A, Ferrer F, Navarro V, de Blas R, Cunillera O, Mateo D, Gutierrez C, Martinez E, Pera J, Ferrer M. Relation dose volume histograms and quality of life in prostate cancer. Rep Pract Oncol Radiother 2013. [DOI: 10.1016/j.rpor.2013.03.822] [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] Open
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Casas F, Ferrer F, Henríquez I, Bejar A, Maldonado X, Alvarez A, Sansegundo CG, Boladeras A, Vallejo M, Caro M, Herruzo I, Rodríguez I, Ferrer C. Intermittent versus continuous androgen deprivation phase III trial: Preliminary results. Rep Pract Oncol Radiother 2013. [DOI: 10.1016/j.rpor.2013.03.814] [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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Wu J, Duan S, Li W, Wang Y, Liu W, Zhang J, Lun L, Li X, Zhou C, Zheng Y, Liu S, Xie Y, Cai G, Chen X, Shen P, Li Y, Wang Z, Wang W, Ren H, Zhang W, Chen N, Shimamoto M, Ohsawa I, Suzuki H, Nagamachi S, Shimizu Y, Horikoshi S, Tomino Y, Cox SN, Serino G, Sallustio F, Pesce F, Schena FP, Kalbacher E, Ducher M, Fouque D, MacGregor B, Combarnous F, Fauvel JP, Sarcina C, Ferrario F, Terraneo V, Pani A, Fogazzi G, Visciano GB, De Simone I, Rastelli F, Pozzi C, Kwak IS, Seong EY, Rhee H, Lee DW, Lee SB, Yang BY, Shin MJ, Kim IY, Stangou MJ, Bantis C, Kasimatis S, Skoularopoulou M, Toulkeridis G, Pantzaki A, Papagianni A, Efstratiadis G, Yamada K, Suzuki H, Suzuki Y, Raska M, Huang ZQ, Reily C, Moldoveanu Z, Kiryluk K, Julian BA, Tomino Y, Gharavi AG, Novak J, Camilla R, Coppo R, Bellur S, Cattran D, Cook T, Feehally J, Troyanov S, Roberts I, Vergano L, Morando L, Mizerska-Wasiak M, Maldyk J, Rybi-Szuminska A, Firszt-Adamczyk A, Bienias B, Gadomska-Prokop K, Grenda R, Zajaczkowska M, Stankiewicz R, Wasilewska A, Roszkowska-Blaim M, Zhang X, Xie J, Wang W, Pan X, Guo S, Shen P, Zhang W, Chen N, Soylu A, Ozturk Y, Dogan Y, Ozmen D, Yilmaz O, Kavukcu S, Choi JY, Park GY, Jung HY, Kim KH, Kwon O, Cho JH, Kim CD, Kim YL, Park SH, Berthoux FC, Mohey H, Laurent B, Mariat C, Chen YX, Zhang W, Xu J, Chen N, Bajcsi D, Haris A, Abraham G, Legrady P, Polner K, Ronaszeki B, Balla Z, Rakonczay Z, Ivanyi B, Sonkodi S, Bredin PH, Canney M, Kennedy C, Plant LD, Clarkson MR, Naz N, Hiremath M, Banerjee A, Shah Y, Yuste C, Casian A, Jironda C, Jayne D, Smith R, Lewin M, Jones R, Merkel P, Jayne D, Izzo C, Quaglia M, Radin E, Airoldi A, Fenoglio R, Lazzarich E, Stratta P, Onusic VL, Araujo MJ, Battaini LC, Jorge LB, Dias CB, Toledo-Barros M, Toledo-Barros R, Woronik V, Cirami CL, Gallo P, Romoli E, Mecacci F, Simeone S, Minetti EE, Mello G, Rivera F, Segarra A, Praga M, Quaglia M, Radin E, Izzo C, Airoldi A, Lazzarich E, Fenoglio R, Stratta P, Dias CB, Lee J, Jorge L, Malheiro D, Barros RT, Woronik V, Zakharova EV, Stolyarevich ES, Velioglu A, Guler D, Nalcaci S, Birdal G, Arikan H, Koc M, Direskeneli H, Tuglular S, Ozener C, Guedes Marques M, Cotovio P, Ferrer F, Silva C, Botelho C, Lopes K, Maia P, Carreira A, Campos M, Alharazy S, Kong NCT, Mohammad M, Shah SA, Gafor H, Bain A. Clinical nephrology - IgA nephropathy, lupus nephritis, vasculitis. Nephrol Dial Transplant 2013. [DOI: 10.1093/ndt/gft113] [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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Affiliation(s)
- Fernando Ferrer
- Department of Surgery, Division of Urology and Department of Pediatrics, Division of Oncology, University of Connecticut School of Medicine, Farmington, Connecticut
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Redondo A, Comas M, Macià F, Ferrer F, Murta-Nascimento C, Maristany MT, Molins E, Sala M, Castells X. Inter- and intraradiologist variability in the BI-RADS assessment and breast density categories for screening mammograms. Br J Radiol 2012; 85:1465-70. [PMID: 22993385 DOI: 10.1259/bjr/21256379] [Citation(s) in RCA: 106] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVE The aim of this study was to evaluate reader variability in screening mammograms according to the American College of Radiology Breast Imaging Reporting and Data System (BI-RADS) assessment and breast density categories. METHODS A stratified random sample of 100 mammograms was selected from a population-based breast cancer screening programme in Barcelona, Spain: 13 histopathologically confirmed breast cancers and 51 with true-negative and 36 with false-positive results. 21 expert radiologists from radiological units of breast cancer screening programmes in Catalonia, Spain, reviewed the mammography images twice within a 6-month interval. The readers described each mammography using BI-RADS assessment and breast density categories. Inter- and intraradiologist agreement was assessed using percentage of concordance and the kappa (κ) statistic. RESULTS Fair interobserver agreement was observed for the BI-RADS assessment [κ=0.37, 95% confidence interval (CI) 0.36-0.38]. When the categories were collapsed in terms of whether additional evaluation was required (Categories III, 0, IV, V) or not (I and II), moderate agreement was found (κ=0.53, 95% CI 0.52-0.54). Intra-observer agreement for BI-RADS assessment was moderate using all categories (κ=0.53, 95% CI 0.50-0.55) and substantial on recall (κ=0.66, 95% CI 0.63-0.70). Regarding breast density, inter- and intraradiologist agreement was substantial (κ=0.73, 95% CI 0.72-0.74 and κ=0.69, 95% CI 0.68-0.70, respectively). CONCLUSION We observed a substantial intra-observer agreement in the BI-RADS assessment but only moderate interobserver agreement. Both inter- and intra-observer agreement in mammographic interpretation of breast density was substantial. Advances in knowledge Educational efforts should be made to decrease radiologists' variability in BI-RADS assessment interpretation in population-based breast screening programmes.
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Affiliation(s)
- A Redondo
- Servei d'Epidemiologia i Avaluació, Hospital del Mar, Barcelona, Spain
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Sancho I, Pino F, Modolell I, Ferrer F. EP-1473 CONE-BEAM COMPUTED TOMOGRAPHY (CBCT)-BASED DOSIMETRIC EVALUATION FOR VMAT PROSTATE TREATMENTS. Radiother Oncol 2012. [DOI: 10.1016/s0167-8140(12)71806-6] [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]
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Thangada S, Hla T, Grundy P, Ferrer F. 150 CONNECTIVE TISSUE GROWTH FACTOR (CTGF) AND SPHINGOSINE-1-PHOSPHATE (S1P) RECEPTOR 1 AND 2 LEVELS ARE ALTERED IN WILM'S TUMOR. J Urol 2012. [DOI: 10.1016/j.juro.2012.02.200] [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: 10/28/2022]
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