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https://www.readbyqxmd.com/read/28944587/finding-the-genetic-mechanisms-of-folate-deficiency-and-neural-tube-defects-leaving-no-stone-unturned
#1
REVIEW
Kit Sing Au, Tina O Findley, Hope Northrup
Neural tube defects (NTDs) occur secondary to failed closure of the neural tube between the third and fourth weeks of gestation. The worldwide incidence ranges from 0.3 to 200 per 10,000 births with the United States of American NTD incidence at around 3-6.3 per 10,000 dependent on race and socioeconomic background. Human NTD incidence has fallen by 35-50% in North America due to mandatory folic acid fortification of enriched cereal grain products since 1998. The US Food and Drug Administration has approved the folic acid fortification of corn masa flour with the goal to further reduce the incidence of NTDs, especially among individuals who are Hispanic...
September 25, 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28944110/secondary-cutaneous-involvement-in-follicular-diffuse-lymphoma-treated-with-helical-tomotherapy
#2
A Rashid Dar, Kevin Jordan, Slav Yartsev
Non-Hodgkin's lymphoma is a complex heterogeneous group of disease entities that involves nodal and extranodal tissues. Cutaneous involvement can occur either as a primary or secondary in course of disease. Radiation therapy with either total body or localized treatments is often used for local control and symptom relief, depending on the target volume. We describe a 60-year-old male with a remote history of stage IA left neck follicular lymphoma treated with radiation 20 years ago and previous relapses aggressively treated by chemotherapy...
July 14, 2017: Curēus
https://www.readbyqxmd.com/read/28944056/magnetic-resonance-guided-high-intensity-focused-ultrasound-in-the-presence-of-biopsy-markers
#3
Charles Mougenot, Chrit Moonen
BACKGROUND: Magnetic Resonance guided High Intensity Focused ultrasound (MR-HIFU) offers precise non-invasive thermotherapy for clinical applications such as the treatment of breast lesions. However, patients with a biopsy marker are usually not eligible for MR-HIFU treatment. This study investigates the interaction of some MR-compatible markers with MR-HIFU thermotherapy. METHODS: The MR-HIFU compatibility of 14 markers (6 Gold Anchor and 4 Visicoil markers in gold, 1 Visicoil marker in brass, 3 BiomarC markers in carbon coated) were tested using the Sonalleve breast MR-HIFU platform at 1...
2017: Journal of Therapeutic Ultrasound
https://www.readbyqxmd.com/read/28943823/population-pharmacokinetics-and-pharmacodynamic-target-attainment-of-meropenem-in-critically-ill-young-children
#4
Jeffrey J Cies, Wayne S Moore, Adela Enache, Arun Chopra
OBJECTIVE: This study aims to describe the population pharmacokinetics and pharmacodynamic target attainment of meropenem in critically ill children. METHODS: The study involved a retrospective medical record review from a 189-bed, freestanding children's tertiary care teaching hospital of patients ages 1 to 9 years who received meropenem with concurrent therapeutic drug monitoring. RESULTS: There were 9 patients ages 1 to 9 years (mean age, 3...
July 2017: Journal of Pediatric Pharmacology and Therapeutics: JPPT: the Official Journal of PPAG
https://www.readbyqxmd.com/read/28943075/a-novel-absorbable-radiopaque-hydrogel-spacer-to-separate-the-head-of-the-pancreas-and-duodenum-in-radiation-therapy-for-pancreatic-cancer
#5
Avani D Rao, Ziwei Feng, Eun Ji Shin, Jin He, Kevin M Waters, Stephanie Coquia, Robert DeJong, Lauren M Rosati, Lin Su, Dengwang Li, Juan Jackson, Stephen Clark, Jeffrey Schultz, Danielle Hutchings, Seong-Hun Kim, Ralph H Hruban, Theodore L DeWeese, John Wong, Amol Narang, Joseph M Herman, Kai Ding
PURPOSE: We assessed the feasibility and theoretical dosimetric advantages of an injectable hydrogel to increase the space between the head of the pancreas (HOP) and duodenum in a human cadaveric model. METHODS AND MATERIALS: Using 3 human cadaveric specimens, an absorbable radiopaque hydrogel was injected between the HOP and duodenum by way of open laparotomy in 1 case and endoscopic ultrasound (EUS) guidance in 2 cases. The cadavers were subsequently imaged using computed tomography and dissected for histologic confirmation of hydrogel placement...
August 14, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28943074/local-protocol-variations-for-image-guided-radiation-therapy-in-the-multicenter-dutch-hypofractionation-hypro-trial-impact-of-rectal-balloon-and-mri-delineation-on-anorectal-dose-and-gastrointestinal-toxicity-levels
#6
R C Wortel, W D Heemsbergen, R J Smeenk, M G Witte, A D Krol, F J Pos, L Incrocci
PURPOSE: The phase 3 HYpofractionated irradiation for PROstate cancer (HYPRO) trial randomized patients with intermediate- to high-risk localized prostate cancer to conventionally fractionated (78 Gy in 39 fractions) or hypofractionated (64.6 Gy in 19 fractions) radiation therapy. Differences in techniques and treatment protocols were present between participating centers. This study aimed to compare dose parameters and patient-reported gastrointestinal symptoms between these centers...
August 3, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28942210/high-sensitivity-cardiac-troponin-i-detection-in-physiological-environment-using-algan-gan-high-electron-mobility-transistor-hemt-biosensors
#7
Indu Sarangadharan, Abiral Regmi, Yen-Wen Chen, Chen-Pin Hsu, Pei-Chi Chen, Wen-Hsin Chang, Geng-Yen Lee, Jen-Inn Chyi, Shu-Chu Shiesh, Gwo-Bin Lee, Yu-Lin Wang
In this study, we report the development of a high sensitivity assay for the detection of cardiac troponin I using electrical double layer gated high field AlGaN/GaN HEMT biosensor. The unique gating mechanism overcomes the drawback of charge screening seen in traditional FET based biosensors, allowing detection of target proteins in physiological solutions without sample processing steps. Troponin I specific antibody and aptamer are used as receptors. The tests carried out using purified protein solution and clinical serum samples depict high sensitivity, specificity and wide dynamic range (0...
September 14, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28942008/transport-of-ellipsoid-fibers-in-oscillatory-shear-flows-implications-for-aerosol-deposition-in-deep-airways
#8
Lihi Shachar-Berman, Yan Ostrovski, Alessandro De Rosis, Stavros Kassinos, Josué Sznitman
It is widely acknowledged that inhaled fibers, e.g. air pollutants and anthropogenic particulate matter, hold the ability to deposit deep into the lungs reaching the distal pulmonary acinar airways as a result of their aerodynamic properties; these particles tend to align with the flow and thus stay longer airborne relative to their spherical counterpart, due to higher drag forces that resist sedimentation. Together with a high surface-to-volume ratio, such characteristics may render non-spherical particles, and fibers in particular, potentially attractive airborne carriers for drug delivery...
September 20, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28941924/risk-stratification-of-equivocal-pi-rads-lesions-in-mp-mri-of-the-prostate
#9
T Ullrich, M Quentin, C Arsov, A K Schmaltz, A Tschischka, N Laqua, A Hiester, D Blondin, R Rabenalt, P Albers, G Antoch, L Schimmöller
PURPOSE: To systematically analyze patients with PI-RADS-3-lesions (called 'equivocal' according to PI-RADS v2) in multiparametric prostate MRI (mp-MRI) and MR-targeted plus systematic transrectal ultrasound-guided (TRUS-GB) biopsies as reference standard. MATERIAL AND METHODS: One hundred and twenty consecutive patients with a PI-RADS overall score of 3 after mp-MRI (T2WI, DWI, DCE-MRI) at 3T and subsequent targeted MRI/US fusion-guided (FUS-GB) plus systematic 12-core TRUS-GB were retrospectively included in this study...
September 20, 2017: Journal of Urology
https://www.readbyqxmd.com/read/28941407/targeted-neurogenesis-pathway-based-gene-analysis-identifies-adora2a-associated-with-hippocampal-volume-in-mild-cognitive-impairment-and-alzheimer-s-disease
#10
Emrin Horgusluoglu-Moloch, Kwangsik Nho, Shannon L Risacher, Sungeun Kim, Tatiana Foroud, Leslie M Shaw, John Q Trojanowski, Paul S Aisen, Ronald C Petersen, Clifford R Jack, Simon Lovestone, Andrew Simmons, Michael W Weiner, Andrew J Saykin
Alzheimer's disease (AD) patients display hippocampal atrophy, memory impairment, and cognitive decline. New neurons are generated throughout adulthood in 2 regions of the brain implicated in AD, the dentate gyrus of the hippocampus and the subventricular zone of the olfactory bulb. Disruption of this process contributes to neurodegenerative diseases including AD, and many of the molecular players in AD are also modulators of adult neurogenesis. However, the genetic mechanisms underlying adult neurogenesis in AD have been underexplored...
August 18, 2017: Neurobiology of Aging
https://www.readbyqxmd.com/read/28941320/characteristics-of-the-local-recurrence-pattern-after-curative-resection-and-values-in-target-region-delineation-in-postoperative-radiotherapy-for-lower-thoracic-esophageal-squamous-cell-cancer
#11
Jun Liu, Xuwei Cai, Qi Liu, Hongxuan Li, Yan Cheng, Xiaolong Fu
BACKGROUND: The aim of this study was to investigate the patterns and influencing factors of local-regional recurrence of lower thoracic esophageal squamous cell carcinoma (TESCC) after curative resection and to delineate the clinical target volume (CTV) of postoperative radiotherapy (PORT). METHODS: From January 2009 to December 2013, the clinical data of patients who experienced local-regional recurrence after curative esophagectomy were collected and analyzed to determine local-regional recurrence patterns and to evaluate whether a proposed T-shaped PORT CTV could cover regions of local-regional failure...
September 23, 2017: Thoracic Cancer
https://www.readbyqxmd.com/read/28940552/clinical-and-angiographic-outcomes-of-axial-stent-deformations-in-unrestricted-real-world-patient-population
#12
Mahmoud Sabbah, Kazushige Kadota, Shunsuke Kubo, Yusuke Hyodo, Suguru Otsuru, Daiji Hasegawa, Takeshi Tada, Seiji Habara, Hiroyuki Tanaka, Yasushi Fuku, Tsuyoshi Goto
BACKGROUND: Prior reports have suggested that the design of the Promus Element stent is prone to longitudinal stent deformation (LSD). However, little is known about the clinical and angiographic outcomes of Promus Element stent axial deformations when implanted in unrestricted coronary lesions. METHOD AND RESULTS: Two independent reviewers retrospectively evaluated the procedure steps of 961 Promus Element stent (833 de novo lesions in 494 consecutive patients) implanted in unrestricted coronary lesions, between February 2012 and March 2013, and compared the prevalence, predictors, and the mid-term clinical and angiographic outcomes between lesions with and without stent deformation...
September 20, 2017: Journal of Interventional Cardiology
https://www.readbyqxmd.com/read/28940525/estimation-of-initial-phenobarbital-dosing-in-term-neonates-with-moderate-to-severe-hypoxic-ischaemic-encephalopathy-following-perinatal-asphyxia
#13
M Šíma, P Pokorná, J Hartinger, O Slanař
WHAT IS KNOWN AND OBJECTIVE: Phenobarbital is the first-line treatment of seizures in asphyxiated neonates; however, due to the high pharmacokinetic variability in this population, there is no consensus on the optimal dosage regimen. This study was conducted to identify variables that affect phenobarbital fate during routine clinical care and then to evaluate the dosage schedule that could be applied in term asphyxiated neonates with respect to achieving the target therapeutic range. METHODS: Phenobarbital pharmacokinetics was calculated based on serum concentrations measurements using one-compartmental model...
September 22, 2017: Journal of Clinical Pharmacy and Therapeutics
https://www.readbyqxmd.com/read/28940520/direction-modulated-brachytherapy-dmbt-for-treatment-of-cervical-cancer-a-planning-study-with-192ir-60co-and-169yb-hdr-sources
#14
Habib Safigholi, Dae Yup Han, Shahram Mashouf, Abraam Soliman, Ali S Meigooni, Amir Owrangi, William Y Song
PURPOSE: To evaluate plan quality of a novel MRI-compatible direction modulated brachytherapy (DMBT) tandem applicator using 192Ir, 60Co, and 169Yb HDR brachytherapy sources, for various cervical cancer high-risk clinical target volumes (CTVHR ). MATERIALS AND METHODS: The novel DMBT tandem applicator has six peripheral grooves of 1.3-mm diameter along a 5.4-mm thick nonmagnetic tungsten alloy rod. Monte Carlo (MC) simulations were used to benchmark the dosimetric parameters of the 192Ir, 60Co, and 169Yb HDR sources in a water phantom against the literature data...
September 22, 2017: Medical Physics
https://www.readbyqxmd.com/read/28939714/kidney-disease-measures-and-left-ventricular-structure-and-function-the-atherosclerosis-risk-in-communities-study
#15
Kunihiro Matsushita, Lucia Kwak, Yingying Sang, Shoshana H Ballew, Hicham Skali, Amil M Shah, Josef Coresh, Scott Solomon
BACKGROUND: Heart failure is one of the most important complications of chronic kidney disease (CKD). However, few studies comprehensively investigated left ventricular (LV) structure and function in relation to 2 key CKD measures, estimated glomerular filtration rate (eGFR) and urine albumin/creatinine ratio (ACR). METHODS AND RESULTS: Among 4175 ARIC (Atherosclerosis Risk in Communities) participants (aged 66-90 years during 2011-2013), we quantified the association of eGFR and ACR with echocardiogram parameters of LV mass, size, systolic function, and diastolic function...
September 22, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28939668/neurogranin-a-synaptic-protein-is-associated-with-memory-independent-of-alzheimer-biomarkers
#16
Kaitlin B Casaletto, Fanny M Elahi, Brianne M Bettcher, John Neuhaus, Barbara B Bendlin, Sanjay Asthana, Sterling C Johnson, Kristine Yaffe, Cynthia Carlsson, Kaj Blennow, Henrik Zetterberg, Joel H Kramer
OBJECTIVE: To determine the association between synaptic functioning as measured via neurogranin in CSF and cognition relative to established Alzheimer disease (AD) biomarkers in neurologically healthy older adults. METHODS: We analyzed CSF concentrations of neurogranin, β-amyloid (Aβ42), phosphorylated tau (p-tau), and total tau (t-tau) among 132 neurologically normal older adults (mean 64.5, range 55-85), along with bilateral hippocampal volumes and a measure of episodic memory (Auditory Verbal Learning Test, delayed recall)...
September 22, 2017: Neurology
https://www.readbyqxmd.com/read/28939336/-evaluation-and-results-of-ablative-therapies-in-prostate-cancer
#17
R Renard-Penna, R Sanchez-Salas, E Barret, J M Cosset, S de Vergie, J Sapetti, A Ingels, A Gangi, H Lang, X Cathelineau
OBJECTIVE: To perform a state of the art about methods of evaluation and present results in ablative therapies for localized prostate cancer. METHODS: A review of the scientific literature was performed in Medline database (http://www.ncbi.nlm.nih.gov) and Embase (http://www.embase.com) using different associations of keywords. Publications obtained were selected based on methodology, language and relevance. After selection, 102 articles were analysed. RESULTS: Analyse the results of ablative therapies is presently difficult considering the heterogeneity of indications, techniques and follow-up...
September 19, 2017: Progrès en Urologie
https://www.readbyqxmd.com/read/28939227/long-term-clinical-outcomes-of-pencil-beam-scanning-proton-therapy-for-benign-and-non-benign-intracranial-meningiomas
#18
Fritz R Murray, James W Snider, Alessandra Bolsi, Antony J Lomax, Marc Walser, Ulrike Kliebsch, Ralf A Schneider, Damien C Weber
PURPOSE: To assess and report long-term clinical outcomes regarding local control, overall survival, and toxicity-free survival after pencil beam scanning proton therapy for intracranial meningiomas at a single institution. PATIENTS AND METHODS: Ninety-six patients (male/female, 29/67; median age 52.8 years) with intracranial meningiomas (World Health Organization [WHO] grade 1, n=61 [63.5%]; WHO grade 2, n=33 [34.4%]; WHO grade 3, n=2 [2.1%]) were treated with pencil beam scanning proton therapy (n=53 [55...
August 12, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28939178/prostate-cancer-post-prostatectomy-radiotherapy-ct-vs-mri-for-vesico-urethral-anastomosis-target-delineation
#19
Daryl Lim Joon, Adeline Lim, Michal Schneider, Chee-Yan Hiew, Nathan Lawrentschuk, Shomik Sengupta, Farshad Foroudi, Trish Jenkins, David Angus, Morikatsu Wada, Michael Chao, Vincent Khoo
BACKGROUND: Vesico-urethral anastomosis (VUA) is critical to the clinical target volume (CTV) in post-prostatectomy radiotherapy (PPRT), as it is the commonest site of recurrence. Typically, this is performed on a CT alone but guidelines recommend MRI. OBJECTIVE: To evaluate the VUA spatial differences between CT (ctVUA) and MRI (mrVUA) and analyse its impact on the CT defined CTV (ctCTV) as recommended by published guidelines. MATERIALS AND METHODS: We identified 34 patients with a co-registered simulation CT and T2 weighted MRI...
September 19, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28938628/mir-144-promotes-%C3%AE-amyloid-accumulation-induced-cognitive-impairments-by-targeting-adam10-following-traumatic-brain-injury
#20
Liqian Sun, Manman Zhao, Jingbo Zhang, Aihua Liu, Wenjun Ji, Youxiang Li, Xinjian Yang, Zhongxue Wu
The dysregulation expression of microRNAs (miRNAs) including miR-144, has been widely documented in TBI. However, little is known about the potential roles of miR-144 in the pathogenesis of TBI. In this study, we investigated the potential effects of miR-144 on cognitive function in vivo and in vitro. The results indicated that inhibition of miR-144 conferred a better neurological outcome after TBI in vivo, as evidenced by reduced lesion volume, alleviated brain edema and increased mNSS, of particular importance, improved cognitive deficits...
August 29, 2017: Oncotarget
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