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https://www.readbyqxmd.com/read/28339824/a-phase-i-trial-of-the-mek-inhibitor-selumetinib-azd6244-in-pediatric-patients-with-recurrent-or-refractory-low-grade-glioma-a-pediatric-brain-tumor-consortium-pbtc-study
#1
Anuradha Banerjee, Regina I Jakacki, Arzu Onar-Thomas, Shengjie Wu, Theodore Nicolaides, Tina Young Poussaint, Jason Fangusaro, Joanna Phillips, Arie Perry, David Turner, Michael Prados, Roger J Packer, Ibrahim Qaddoumi, Sridharan Gururangan, Ian F Pollack, Stewart Goldman, Lawrence A Doyle, Clinton F Stewart, James M Boyett, Larry E Kun, Maryam Fouladi
Background.: Activation of the mitogen-activated protein kinase pathway is important for growth of pediatric low-grade gliomas (LGGs). The aim of this study was to determine the recommended phase II dose (RP2D) and the dose-limiting toxicities (DLTs) of the MEK inhibitor selumetinib in children with progressive LGG. Methods.: Selumetinib was administered orally starting at 33 mg/m2/dose b.i.d., using the modified continual reassessment method. Pharmacokinetic analysis was performed during the first course...
February 28, 2017: Neuro-oncology
https://www.readbyqxmd.com/read/28317207/hidden-high-rate-of-preeclampsia-in-twin-compared-to-singleton-pregnancies
#2
Carla Francisco, David Wright, Zsófia Benkő, Argyro Syngelaki, Kypros H Nicolaides
OBJECTIVE: To examine the gestational age at delivery with and without preeclampsia (PE) in dichorionic (DC) and monochorionic (MC) twin pregnancies and determine the relative risk for total and preterm-PE compared to singleton pregnancies. METHODS: This was a screening study for PE in twin pregnancies undergoing first-trimester combined screening for aneuploidy and subsequently delivering two phenotypically normal live or stillborn babies at ≥24 weeks' gestation...
March 19, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28304223/metastatic-clival-chordoma-a-case-report-of-multiple-extraneural-metastases-following-resection-and-proton-beam-radiotherapy-in-a-5-year-old-boy
#3
Martin J Rutkowski, Harjus S Birk, Matthew D Wood, Arie Perry, Theodore Nicolaides, Christopher P Ames, Nalin Gupta
The authors report the case of a 5-year-old boy in whom extraneural metastases developed 5 years after he underwent an occipitocervical fusion and transoral approach to treat a clival chordoma without local recurrence. Following primary resection, the patient's postoperative course was complicated by recurrent meningitis secondary to CSF leak, which responded to antibiotics, and communicating hydrocephalus, for which a ventriculoperitoneal shunt was placed. The patient then underwent postoperative proton beam radiotherapy...
March 17, 2017: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/28295782/multicenter-screening-for-preeclampsia-by-maternal-factors-and-biomarkers-at-11-13-weeks-gestation-comparison-to-nice-guidelines-and-acog-recommendations
#4
Neil O' Gorman, David Wright, Liona C Poon, Daniel L Rolnik, Argyro Syngelaki, Mercedes de Alvarado, Ilma F Carbone, Vivien Dutemeyer, Madgalena Fiolna, Alex Frick, Natalia Karagiotis, Sofia Mastrodima, Catalina de Paco Matallana, George Papaioannou, Andrea Pazos, Walter Plasencia, Kypros H Nicolaides
OBJECTIVE: To compare the performance of screening for preeclampsia (PE) based on risk factors from the medical history, as recommended by NICE and ACOG, with the method proposed by the Fetal Medicine Foundation (FMF), which uses Bayes theorem to combine the a priori risk from maternal factors, derived by a multivariable logistic model, with the results of various combinations of biophysical and biochemical measurements. METHODS: This was a prospective multicenter study of screening for PE in 8,775 singleton pregnancies at 11-13 weeks' gestation...
March 10, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28295773/a-study-protocol-for-the-prospective-validation-study-screening-programme-for-pre-eclampsia-spree
#5
Min Yi Tan, Lemonia Koutoulas, David Wright, Kypros H Nicolaides, Liona C Poon
INTRODUCTION: Pre-eclampsia (PE), which affects about 2% of pregnancies, is a major cause of maternal and perinatal morbidity and mortality. Early detection of PE can improve pregnancy outcome by providing timely intervention and closer monitoring. The current guideline from the National Institute for Health and Care Excellence (NICE) recommends that at the booking visit, women identified with one major risk factor or more than one moderate risk factor for PE should be advised to take low-dose aspirin daily from 12 weeks until the birth of the baby...
March 13, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28295722/cerclage-for-short-cervix-on-ultrasound-in-singleton-gestations-without-prior-spontaneous-preterm-birth-a-systematic-review-and-meta-analysis-of-trials-using-individual-patient-level-data
#6
REVIEW
Vincenzo Berghella, Andrea Ciardulli, Orion A Rust, Meekai To, Katsufumi Otsuki, Sietske Althuisius, Kypros Nicolaides, Amanda Roman, Gabriele Saccone
OBJECTIVE: The aim of this systematic review and meta-analysis was to quantify the efficacy of cervical cerclage in preventing preterm birth (PTB) in asymptomatic singleton pregnancies with a mid-trimester short transvaginal ultrasound cervical length (TVU CL) and without prior spontaneous PTB. METHODS: Electronic databases were searched from inception of each database until February 2017. No language restrictions were applied. We included all randomized controlled trials (RCTs) of asymptomatic singleton pregnancies without prior spontaneous PTB screened with TVU CL, found to have a midtrimester short CL <25 mm, and then randomized to management with either cerclage (i...
March 10, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28294444/effect-of-change-in-posture-on-maternal-functional-hemodynamics-at-35-37-weeks-gestation
#7
Gavin P Guy, Hua Z Ling, Mirian Machuca, Liona C Poon, Kypros H Nicolaides
OBJECTIVE: To evaluate the effect of posture change from the supine to sitting position and before and after passive leg raising on maternal functional hemodynamics in pregnant women at 35-37 weeks' gestation and to compare the changes in pregnancies that subsequently developed preeclampsia (PE) and gestational hypertension (GH) to those who remained normotensive. METHODS: In 3,013 singleton pregnancies at 35-37 weeks' gestation maternal cardiovascular parameters were measured using an automated non-invasive cardiac monitor...
March 13, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28292440/a-kinase-inhibitor-targeted-to-mtorc1-drives-regression-in-glioblastoma
#8
QiWen Fan, Ozlem Aksoy, Robyn A Wong, Shirin Ilkhanizadeh, Chris J Novotny, William C Gustafson, Albert Yi-Que Truong, Geraldine Cayanan, Erin F Simonds, Daphne Haas-Kogan, Joanna J Phillips, Theodore Nicolaides, Masanori Okaniwa, Kevan M Shokat, William A Weiss
Although signaling from phosphatidylinositol 3-kinase (PI3K) and AKT to mechanistic target of rapamycin (mTOR) is prominently dysregulated in high-grade glial brain tumors, blockade of PI3K or AKT minimally affects downstream mTOR activity in glioma. Allosteric mTOR inhibitors, such as rapamycin, incompletely block mTORC1 compared with mTOR kinase inhibitors (TORKi). Here, we compared RapaLink-1, a TORKi linked to rapamycin, with earlier-generation mTOR inhibitors. Compared with rapamycin and Rapalink-1, TORKi showed poor durability...
March 13, 2017: Cancer Cell
https://www.readbyqxmd.com/read/28266156/re-cervical-length-screening-for-prevention-of-preterm-birth-in-singleton-pregnancy-with-threatened-preterm-labor-systematic-review-and-meta-analysis-of-randomized-controlled-trials-using-individual-patient-level-data-v-berghella-m-palacio-a-ness-z-alfirevic
#9
COMMENT
https://www.readbyqxmd.com/read/28241970/automated-segmental-imt-measurement-in-thin-thick-plaque-with-bulb-presence-in-carotid-ultrasound-from-multiple-scanners-stroke-risk-assessment
#10
Nobutaka Ikeda, Nilanjan Dey, Aditya Sharma, Ajay Gupta, Soumyo Bose, Suvojit Acharjee, Shoaib Shafique, Elisa Cuadrado-Godia, Tadashi Araki, Luca Saba, John R Laird, Andrew Nicolaides, Jasjit S Suri
BACKGROUND AND OBJECTIVES: Standardization of the carotid IMT requires a reference marker in ultrasound scans. It has been shown previously that manual reference marker and manually created carotid segments are used for measuring IMT in these segments. Manual methods are tedious, time consuming, subjective, and prone to errors. Bulb edge can be considered as a reference marker for measurements of the cIMT. However, bulb edge can be difficult to locate in ultrasound scans due to: (a) low signal to noise ratio in the bulb region as compared to common carotid artery region; (b) uncertainty of bulb location in craniocaudal direction; and (c) variability in carotid bulb shape and size...
April 2017: Computer Methods and Programs in Biomedicine
https://www.readbyqxmd.com/read/28228950/outcomes-of-coronary-artery-bypass-grafting-versus-percutaneous-coronary-intervention-with-second-generation-drug-eluting-stents-for-patients-with-multivessel-and-unprotected-left-main-coronary-artery-disease
#11
Kyriacos Papadopoulos, Ioannis Lekakis, Evagoras Nicolaides
OBJECTIVES: To compare the efficacy and safety of percutaneous coronary intervention using second-generation drug-eluting stents with those of coronary artery bypass grafting among patients with multivessel disease and/or unprotected left main coronary artery disease in terms of mortality, myocardial infarction, repeat revascularization, and angina. BACKGROUND: Although coronary artery disease is a leading cause of death in the Western world and in many developing countries, its optimal treatment is still a matter of controversy...
2017: SAGE Open Medicine
https://www.readbyqxmd.com/read/28203572/symptomatic-type-iv-dual-left-anterior-descending-coronary-artery
#12
Kyriacos Papadopoulos, Georgios M Georgiou, Evagoras Nicolaides
Dual left anterior descending coronary artery is a rare congenital anomaly with 4 subtypes. Double left anterior descending coronary artery originating from the left main stem and the right coronary artery (type IV dual left anterior descending artery) has been reported to occur in 0.01% to 0.7% of patients undergoing cardiac catheterization. We report a case of a 49-year-old woman who was found to have this anomaly during coronary angiography. The patient had been complaining of chest pain that mimics angina pectoris and exercise tolerance test was positive for myocardial ischemia...
October 2016: Journal of Investigative Medicine High Impact Case Reports
https://www.readbyqxmd.com/read/28133834/proposed-clinical-management-of-pregnancies-after-combined-screening-for-preeclampsia-at-35-37-weeks-gestation
#13
Anca M Panaitescu, David Wright, Anna Militello, Ranjit Akolekar, Kypros H Nicolaides
OBJECTIVE: To estimate the patient-specific risk of preeclampsia (PE) at 35-37 weeks' gestation by a combination of maternal characteristics and medical history with multiple of the median (MoM) values of mean arterial pressure (MAP), uterine artery pulsatility index (UTPI), serum placental growth factor (PLGF) and serum soluble fms-like tyrosine kinase-1 (sFLT-1) and stratify women into high-, intermediate- and low-risk management groups. METHODS: This was a prospective observational study in women attending for a third-trimester ultrasound scan at 35-37 weeks as part of routine pregnancy care...
January 29, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28133831/proposed-clinical-management-of-pregnancies-after-combined-screening-for-preeclampsia-at-19-24-weeks-gestation
#14
Magdalena Litwinska, David Wright, Tunay Efeturk, Irene Ceccacci, Kypros H Nicolaides
OBJECTIVE: To estimate the patient-specific risk of preeclampsia (PE) at 19-24 weeks' gestation by a combination of maternal characteristics and medical history with multiple of the median (MoM) values of mean arterial pressure (MAP), uterine artery pulsatility index (UTPI), serum placental growth factor (PLGF) and serum soluble fms-like tyrosine kinase-1 (sFLT-1) and stratify women into high-, intermediate- and low-risk management groups. The high-risk group, which would contain almost all cases of PE at <32 weeks, would require close monitoring for high blood pressure and proteinuria at 24-31 weeks...
January 29, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28124877/the-place-of-ruscus-extract-hesperidin-methyl-chalcone-and-vitamin-c-in-the-management-of-chronic-venous-disease
#15
Arkadiusz Jawien, Eliete Bouskela, François A Allaert, Andrew N Nicolaïdes
Despite continuous improvement in our knowledge and management of chronic venous disease (CVD), certain areas, such as the role of muscarinic receptors in the pathology and treatment of CVD, remain unexplored. The symposium "The place of Ruscus extract, hesperidin methyl chalcone, and vitamin C in the management of CVD", held at the Annual Meeting of the European Venous Forum on 7-9 July 2016 in London, presented an update on the pathophysiology of CVD and highlighted how the combination of Ruscus extract, hesperidin methyl chalcone, and vitamin C (Ruscus/HMC/VitC; Cyclo 3® Fort), may counteract the deleterious processes underlying CVD...
February 2017: International Angiology: a Journal of the International Union of Angiology
https://www.readbyqxmd.com/read/28124119/heterozygosity-for-arid2-loss-of-function-mutations-in-individuals-with-a-coffin-siris-syndrome-like-phenotype
#16
Nuria C Bramswig, O Caluseriu, H-J Lüdecke, F V Bolduc, N C L Noel, T Wieland, H M Surowy, H-J Christen, H Engels, T M Strom, D Wieczorek
Chromatin remodeling is a complex process shaping the nucleosome landscape, thereby regulating the accessibility of transcription factors to regulatory regions of target genes and ultimately managing gene expression. The SWI/SNF (switch/sucrose nonfermentable) complex remodels the nucleosome landscape in an ATP-dependent manner and is divided into the two major subclasses Brahma-associated factor (BAF) and Polybromo Brahma-associated factor (PBAF) complex. Somatic mutations in subunits of the SWI/SNF complex have been associated with different cancers, while germline mutations have been associated with autism spectrum disorder and the neurodevelopmental disorders Coffin-Siris (CSS) and Nicolaides-Baraitser syndromes (NCBRS)...
January 25, 2017: Human Genetics
https://www.readbyqxmd.com/read/28078815/repeat-measurements-of-uterine-artery-pulsatility-index-mean-arterial-pressure-and-serum-placental-growth-factor-at-12-22-and-32-weeks-in-the-prediction-of-preeclampsia
#17
Silvia Andrietti, Stefania Carlucci, Alan Wright, David Wright, Kypros H Nicolaides
OBJECTIVE: To investigate the potential value of repeat measurements of uterine artery pulsatility index (UTPI), mean arterial pressure (MAP) and serum placental growth factor (PLGF) at 12, 22 and 32 weeks' gestation in the prediction of preeclampsia (PE) after 32 weeks. METHODS: The data were derived from prospective screening for adverse obstetric outcomes in women attending for their routine hospital visit at 11-13, 19-24 and / or 30-34 weeks' gestation in two maternity hospitals in England...
January 12, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28074555/paediatric-stress-from-neuroendocrinology-to-contemporary-disorders
#18
REVIEW
Stavroula Stavrou, Nicolas C Nicolaides, Elena Critselis, Christina Darviri, Evangelia Charmandari, George P Chrousos
BACKGROUND: Stress is defined as a state of threatened or perceived as threatened homeostasis. A broad spectrum of extrinsic or intrinsic, real or perceived stressful stimuli, called 'stressors', activates a highly conserved system, the 'stress system', which adjusts homeostasis through central and peripheral neuroendocrine responses. Inadequate, excessive or prolonged adaptive responses to stress may underlie the pathogenesis of several disease states prevalent in modern societies. The development and severity of these conditions primarily depend on the genetic vulnerability of the individual, the exposure to adverse environmental factors and the timing of the stressful event(s), given that prenatal life, infancy, childhood and adolescence are critical periods characterized by increased vulnerability to stressors...
January 11, 2017: European Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28067011/accuracy-of-competing-risks-model-in-screening-for-pre-eclampsia-by-maternal-factors-and-biomarkers-at-11-13-weeks-gestation
#19
Neil O'Gorman, David Wright, Liona C Poon, Daniel L Rolnik, Argyro Syngelaki, Alan Wright, Ranjit Akolekar, Simona Cicero, Deepa Janga, Jacques Jani, Francisca S Molina, Catalina de Paco Matallana, Nikos Papantoniou, Nicola Persico, Walter Plasencia, Mandeep Singh, Kypros H Nicolaides
OBJECTIVE: To examine the diagnostic accuracy of a previously developed model for prediction of preeclampsia (PE) by a combination of maternal factors and biomarkers at 11-13 weeks' gestation. METHODS: This was a prospective first-trimester multicenter study of screening for PE in 8,775 singleton pregnancies. A previously published algorithm was used for the calculation of patient-specific risk of PE in each patient. The detection rates (DR) and false positive rates (FPR) for delivery with PE at <32, <37 and ≥37 weeks were estimated and compared to those in the dataset used for development of the algorithm...
January 9, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28067007/vaginal-progesterone-decreases-preterm-birth-and-neonatal-morbidity-and-mortality-in-women-with-a-twin-gestation-and-a-short-cervix-an-updated-meta-analysis-of-individual-patient-data
#20
REVIEW
Roberto Romero, Agustin Conde-Agudelo, Waleed El-Refaie, Line Rode, Maria L Brizot, Elcin Cetingoz, Vicente Serra, Eduardo Da Fonseca, Mohamed S Abdelhafez, Ann Tabor, Alfredo Perales, Sonia S Hassan, Kypros H Nicolaides
OBJECTIVE: To assess the efficacy of vaginal progesterone for the prevention of preterm birth and neonatal morbidity and mortality in asymptomatic women with a twin gestation and a sonographic short cervix (cervical length ≤25 mm) in the midtrimester. METHODS: Updated systematic review and meta-analysis of individual patient data from randomized controlled trials comparing vaginal progesterone with placebo/no treatment in women with a twin gestation and a midtrimester sonographic cervical length ≤25 mm...
January 9, 2017: Ultrasound in Obstetrics & Gynecology
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