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https://www.readbyqxmd.com/read/29338474/subarachnoid-space-diameter-in-chromosomally-abnormal-fetuses-at-11-13-weeks-gestation
#1
Carolina Ferreira, Ana Lidia Rouxinol-Dias, Teresa Loureiro, Kypros Nicolaides
OBJECTIVES: To examine the subarachnoid space diameters in chromosomally abnormal fetuses at 11-13 weeks' gestation. METHODS: Stored three-dimensional (3D) ultrasound volumes of the fetal head at 11-13 weeks' gestation from 407 euploid and 88 chromosomally abnormal fetuses (trisomy 21, n = 40; trisomy 18, n = 19; trisomy 13, n = 7; triploidy, n = 14; Turner syndrome, n = 8) were analyzed. The subarachnoid space diameters, measured in the sagittal and transverse planes of the fetal head, in relation to biparietal diameter (BPD) in each group of aneuploidies was compared to that in euploid fetuses...
January 16, 2018: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29328602/aspirin-versus-placebo-in-pregnancies-at-high-risk-for-preterm-preeclampsia
#2
Kypros H Nicolaides
No abstract text is available yet for this article.
December 14, 2017: New England Journal of Medicine
https://www.readbyqxmd.com/read/29316055/dedicated-warfarin-care-programme-results-in-superior-warfarin-control-in-queensland-australia
#3
Nijole Bernaitis, Tony Badrick, Shailendra Anoopkumar-Dukie
BACKGROUND: Warfarin is used to prevent stroke in patients with atrial fibrillation (AF). Ongoing monitoring of International normalised ratio (INR) and time in therapeutic range (TTR) commonly used to assess the quality of warfarin management are required. Anticoagulant clinics have demonstrated improved TTRs, particularly in countries with poorer control in primary care settings. Reported TTR in Australia has been relatively high; so, it is unknown if benefit would be seen from dedicated warfarin clinics in Australia...
January 9, 2018: International Journal of Clinical Practice
https://www.readbyqxmd.com/read/29305829/meta-analysis-on-the-effect-of-aspirin-use-for-prevention-of-preeclampsia-on-placental-abruption-and-antepartum-hemorrhage
#4
REVIEW
Stephanie Roberge, Emmanuel Bujold, Kypros H Nicolaides
BACKGROUND: Impaired placentation in the first 16 weeks of pregnancy is associated with increased risk of subsequent development of preeclampsia, birth of small for gestational age neonates and placental abruption. Previous studies reported that prophylactic use of aspirin reduces the risk of preeclampsia and small for gestational age neonates with no significant effect on placental abruption. However, meta-analyses of randomized controlled trials examining the effect of aspirin in relation to gestational age at onset of therapy and dose of the drug reported that significant reduction in the risk of preeclampsia and small for gestational age neonates is achieved only if the onset of treatment is at ≤16 weeks of gestation and the daily dose of the drug is ≥100 mg...
January 3, 2018: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29305253/chronic-hypertension-first-trimester-blood-pressure-control-and-likelihood-of-severe-hypertension-preeclampsia-and-small-for-gestational-age
#5
Diane Nzelu, Dan Dumitrascu-Biris, Kypros H Nicolaides, Nikos A Kametas
BACKGROUND: There is extensive evidence that pre-pregnancy chronic hypertension is associated with high risk of development of severe hypertension and preeclampsia and birth of small for gestational age neonates. However, previous studies have not reported whether anti-hypertensive use, blood pressure control or normalization of blood pressure during early pregnancy influence the rates of these pregnancy complications. OBJECTIVE: To stratify women with pre-pregnancy chronic hypertension according to the use of antihypertensive medications and level of blood pressure control at the first hospital visit during the first-trimester of pregnancy and examine the rates of severe hypertension, preeclampsia and birth of small for gestational age neonates according to such stratification...
January 2, 2018: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29225676/association-between-insulin-resistance-and-preeclampsia-in-obese-non-diabetic-women-receiving-metformin
#6
Jyoti Balani, Steve Hyer, Argyro Syngelaki, Ranjit Akolekar, Kypros H Nicolaides, Antoinette Johnson, Hassan Shehata
Objectives: To examine whether the reduced incidence of preeclampsia in non-diabetic obese pregnant women treated with metformin is mediated by changes in insulin resistance. Methods: This was a secondary analysis of obese pregnant women in a randomised trial (MOP trial). Fasting plasma glucose and insulin were measured in 384 of the 400 women who participated in the MOP trial. Homeostasis model assessment of insulin resistance (HOMA-IR) was compared in the metformin and placebo groups and in those that developed preeclampsia versus those that did not develop preeclampsia...
December 2017: Obstetric Medicine
https://www.readbyqxmd.com/read/29170520/integrated-proteomic-and-metabolomic-prediction-of-term-preeclampsia
#7
Ray Bahado-Singh, Liona C Poon, Ali Yilmaz, Argyro Syngelaki, Onur Turkoglu, Praveen Kumar, Joseph Kirma, Matthew Allos, Veronica Accurti, Jiansheng Li, Peng Zhao, Stewart F Graham, David R Cool, Kypros Nicolaides
Term preeclampsia (tPE), ≥37 weeks, is the most common form of PE and the most difficult to predict. Little is known about its pathogenesis. This study aims to elucidate the pathogenesis and assess early prediction of tPE using serial integrated metabolomic and proteomic systems biology approaches. Serial first- (11-14 weeks) and third-trimester (30-34 weeks) serum samples were analyzed using targeted metabolomic ((1)H NMR and DI-LC-MS/MS) and proteomic (MALDI-TOF/TOF-MS) platforms. We analyzed 35 tPE cases and 63 controls...
November 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29157866/vaginal-progesterone-for-preventing-preterm-birth-and-adverse-perinatal-outcomes-in-singleton-gestations-with-a-short-cervix-a-meta-analysis-of-individual-patient-data
#8
Roberto Romero, Agustin Conde-Agudelo, Eduardo Da Fonseca, John M O'Brien, Elcin Cetingoz, George W Creasy, Sonia S Hassan, Kypros H Nicolaides
BACKGROUND: The efficacy of vaginal progesterone for preventing preterm birth and adverse perinatal outcomes in singleton gestations with a short cervix has been questioned after publication of the OPPTIMUM study. OBJECTIVE: To determine whether vaginal progesterone prevents preterm birth and improves perinatal outcomes in asymptomatic women with a singleton gestation and a midtrimester sonographic short cervix. DATA SOURCES: MEDLINE, EMBASE, LILACS, and CINAHL (from their inception to September 2017), Cochrane databases, bibliographies, and conference proceedings...
November 16, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29153670/protocol-for-measurement-of-mean-arterial-pressure-at-10-40weeks-gestation
#9
Llinos Roberts, Piya Chaemsaithong, Daljit S Sahota, Kypros H Nicolaides, Liona C Y Poon
The study aimed to identify the simplest protocol for the measurement of mean arterial pressure (MAP) across 10-40weeks' gestation. 2726 women with uncomplicated singleton pregnancy attending for their routine hospital visit between 10 and 40weeks' gestation were recruited prospectively. The blood pressure (BP) was measured according to the National Heart Foundation of Australia (NHFA) protocol using automated devices. Linearizing regression models were determined for MAP derived from single, repeat and average measurements taken in the left and right arms using the same polynomial power of the best fit model determined using the NHFA protocol...
October 2017: Pregnancy Hypertension
https://www.readbyqxmd.com/read/29138036/aspirin-for-the-prevention-of-preterm-and-term-preeclampsia-systematic-review-and-metaanalysis
#10
REVIEW
Stephanie Roberge, Emmanuel Bujold, Kypros H Nicolaides
OBJECTIVE DATA: Metaanalyses of randomized controlled trials have reported contradictory results about the effect of aspirin in the prevention of preeclampsia, both in terms of the gestational age at the onset of treatment and the dose of the drug. The controversy may be resolved by a metaanalysis that includes several recently published trials and particularly the large Combined Multimarker Screening and Randomized Patient Treatment with Aspirin for Evidence-based Preeclampsia Prevention trial and by examination of whether there is a difference of the effect of aspirin on preterm vs term preeclampsia...
November 11, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29107894/web-based-accurate-measurements-of-carotid-lumen-diameter-and-stenosis-severity-an-ultrasound-based-clinical-tool-for-stroke-risk-assessment-during-multicenter-clinical-trials
#11
Luca Saba, Sumit K Banchhor, Narendra D Londhe, Tadashi Araki, John R Laird, Ajay Gupta, Andrew Nicolaides, Jasjit S Suri
BACKGROUND: This pilot study presents a completely automated, novel, smart, cloud-based, point-of-care system for (a) carotid lumen diameter (LD); (b) stenosis severity index (SSI) and (c) total lumen area (TLA) measurement using B-mode ultrasound. The proposed system was (i) validated against manual reading taken by the Neurologist and (ii) benchmarked against the commercially available system. METHOD: One hundred patients (73 M/27 F, mean age: 68 ± 11 years), institutional review board approved, written informed consent, consisted of left/right common carotid artery (200 ultrasound scans) were acquired using a 7...
October 23, 2017: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/29074188/the-high-risk-hpv-e6-target-scribble-hscrib-is-required-for-hpv-e6-expression-in-cervical-tumour-derived-cell-lines
#12
Christian Kranjec, Vjekoslav Tomaić, Paola Massimi, Lietta Nicolaides, John Doorbar, Lawrence Banks
The ability of high-risk HPV E6 oncoproteins to target cellular proteins which harbor PDZ domains is believed to play an important role in the virus life cycle and to influence the ability of these viruses to bring about malignant transformation. Whilst many of these PDZ proteins are potential tumour suppressors, involved in the control of cell polarity and cell-contact, recent studies suggest that mislocalisation or overexpression might result in the emergence of oncogenic functions. This has been shown most clearly for two E6 targets, hDlg and hScrib...
December 2016: Papillomavirus Research
https://www.readbyqxmd.com/read/29063748/new-data-on-chronic-venous-disease-a-new-place-for-cyclo-3%C3%A2-fort
#13
Stravos K Kakkos, Eliete Bouskela, Arkadiusz Jawien, Andrew N Nicolaides
With our increasing knowledge of the epidemiology, pathophysiology, investigation and clinical aspects of chronic venous disease (CVD) and new data on the various therapies available, an update of the recommendations on CVD and its management appears to be necessary. The symposium "New Data on Chronic Venous Disease, New Place for Cyclo 3® Fort", held at the annual meeting of the European Venous Forum (EVF) on June 30th, 2017 in Porto, Portugal, reported the recent developments on Ruscus+HMC+Vit C (Cyclo 3® Fort), including the results of a series of in vivo pharmacological experiments and a recent meta-analysis...
October 23, 2017: International Angiology: a Journal of the International Union of Angiology
https://www.readbyqxmd.com/read/29046226/pertussis-toxin-iga-testing-over-diagnoses-recent-pertussis-infection
#14
Meryta L May, Jenny Evans, Thomas Holgate, Suhail A Doi, Paul Ross, Jennifer M Robson
The importance of pertussis toxin (PT) IgA testing in the diagnosis of recent pertussis infection remains unclear. The contribution of PT IgA to the diagnosis of recent pertussis was reviewed in two separate analyses. Firstly, an evaluation of two new automated assays [DiaSorin Liaison (DL), Italy] for PT IgG and PT IgA provided an opportunity to assess the contribution of PT IgA testing to PT IgG results. Secondly, a retrospective review of results from the PT IgA assay currently in use [Sullivan Nicolaides Pathology (SNP) PT IgA] was performed from 2013 to 2015 (n=63,474)...
October 15, 2017: Pathology
https://www.readbyqxmd.com/read/29046085/transoral-laser-surgery-for-laryngeal-carcinoma-has-steiner-achieved-a-genuine-paradigm-shift-in-oncological-surgery
#15
A T Harris, A Tanyi, R D Hart, J Trites, M H Rigby, J Lancaster, A Nicolaides, S M Taylor
Transoral laser microsurgery applies to the piecemeal removal of malignant tumours of the upper aerodigestive tract using the CO2 laser under the operating microscope. This method of surgery is being increasingly popularised as a single modality treatment of choice in early laryngeal cancers (T1 and T2) and occasionally in the more advanced forms of the disease (T3 and T4), predominantly within the supraglottis. Thomas Kuhn, the American physicist turned philosopher and historian of science, coined the phrase 'paradigm shift' in his groundbreaking book The Structure of Scientific Revolutions...
October 19, 2017: Annals of the Royal College of Surgeons of England
https://www.readbyqxmd.com/read/29041009/fcgr2a-and-fcgr3a-genotypes-correlate-with-farletuzumab-response-in-patients-with-first-relapsed-ovarian-cancer-exhibiting-low-ca125
#16
Wenquan Wang, Elizabeth B Somers, Erin N Ross, J Bradford Kline, Daniel J O'Shannessy, Charles Schweizer, Susan Weil, Luigi Grasso, Nicholas C Nicolaides
Farletuzumab is a humanized monoclonal antibody that binds to folate receptor alpha and elicits an anti-tumor response via immune effector activity. Recent studies from a global phase 3 trial in ovarian cancer patients treated with carboplatin/taxane plus farletuzumab found that the tumor-produced CA125 protein can suppress farletuzumab function via perturbing its engagement to the activating Fc-γ receptors CD32a (FCGR2A) and CD16a (FCGR3A). Previous reports have indicated that naturally occurring polymorphisms in both of these receptors may play a role in their ability to engage therapeutic antibodies and elicit an optimal immune response via antibody-dependent cellular cytotoxicity (ADCC)...
2017: Cytogenetic and Genome Research
https://www.readbyqxmd.com/read/29021922/texture-feature-variability-in-ultrasound-video-of-the-atherosclerotic-carotid-plaque
#17
Christos P Loizou, Constantinos S Pattichis, Marios Pantziaris, Efthyvoulos Kyriacou, Andrew Nicolaides
The objective of this paper was to investigate texture feature variability in ultrasound video of the carotid artery during the cardiac cycle in an attempt to define new discriminatory biomarkers of the vulnerable plaque. More specifically, in this paper, 120 longitudinal ultrasound videos, acquired from 40 normal (N) subjects from the common carotid artery and 40 asymptomatic (A) and 40 symptomatic (S) subjects from the proximal internal carotid artery were investigated. The videos were intensity normalized and despeckled, and the intima-media complex (IMC) (from the N subjects) and the atherosclerotic carotid plaques (from the A and S subjects) were segmented from each video, in order to extract the M-mode image, and the texture features associated with cardiac states of systole and diastole...
2017: IEEE Journal of Translational Engineering in Health and Medicine
https://www.readbyqxmd.com/read/29016358/ca125-effects-on-humoral-immunosuppression
#18
J Bradford Kline, Nicholas C Nicolaides
No abstract text is available yet for this article.
October 3, 2017: Aging
https://www.readbyqxmd.com/read/28994336/chronic-hypertension-effect-of-blood-pressure-control-on-pregnancy-outcome
#19
Anca M Panaitescu, Stephanie Roberge, Kypros H Nicolaides
CONTEXT: In pregnancies with chronic hypertension (CH), compared to those without CH, there is a 10-fold increase in the risk of preeclampsia (PE) and two-fold increase in risk of small for gestational age (SGA) neonates. OBJECTIVE: To examine the evidence of whether in patients with CH and mild to moderate hypertension the level of control of blood pressure during pregnancy has a beneficial or adverse effect on the risk of PE or SGA. METHOD: We performed a systematic review and meta-analysis of randomized controlled trials of patients with mild to moderate CH in pregnancy that reported the impact of different levels of control of blood pressure on the risk of PE or SGA...
October 10, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28977993/application-of-3d-tumoroid-systems-to-define-immune-and-cytotoxic-therapeutic-responses-based-on-tumoroid-and-tissue-slice-culture-molecular-signatures
#20
Niklas K Finnberg, Prashanth Gokare, Avital Lev, Sergei I Grivennikov, Alexander W MacFarlane, Kerry S Campbell, Ryan M Winters, Karen Kaputa, Jeffrey M Farma, Abbas El-Sayed Abbas, Luigi Grasso, Nicholas C Nicolaides, Wafik S El-Deiry
We have developed 3D-tumoroids and tumor slice in vitro culture systems from surgical tumor specimens derived from patients with colorectal cancer (CRC) or lung cancer to evaluate immune cell populations infiltrating cultured tissues. The system incorporates patient's peripherally and tumor-derived immune cells into tumoroid in vitro cultures to evaluate the ability of the culture to mimic an immunosuppressive tumor microenvironment (ITM). This system enables analysis of tumor response to standard therapy within weeks of surgical resection...
September 15, 2017: Oncotarget
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