bluuebunny/crossref_metadata_2025_split huggingface dataset:
Isocitrate dehydrogenase 1 mutant glioblastomas demonstrate a decreased rate of pseudoprogression: a multi-institutional experience
Authors: Mohammadi Homan , Shiue Kevin , Grass G Daniel , Verma Vivek , Engellandt Kay , Daubner Dirk , Schackert Gabriele , Gondim Mercia J , Gondim Dibson , Vortmeyer Alexander O , Kamer Aaron P , Jin William , Robinson Timothy J , Watson Gordon , Yu Hsiang-Hsuan M , Lautenschlaeger Tim 
Published: October 2019

Abstract

Background
Pseudoprogression (psPD) represents false radiologic evidence of tumor progression and is observed in some glioblastoma (GBM) patients after postoperative chemoradiation (CRT) with temozolomide (TMZ). The ambiguity of the psPD diagnosis confounds identification of true progression and may lead to unnecessary interventions. The association between psPD and isocitrate dehydrogenase 1 (IDH1) mutational (mut) status is understudied, and its incidence may alter clinical decision making.

Methods
We retrospectively evaluated 120 patients with IDH1-mut (n = 60) and IDH1–wild-type (IDH-WT; [n = 60]) GBMs who received postoperative CRT with TMZ at 4 academic institutions. Response Assessment in Neuro-Oncology criteria were used to identify psPD rates in routine brain MRIs performed up to 90 days after CRT completion.

Results
Within 90 days of completing CRT, 9 GBM patients (1 [1.7%] IDH1-mut and 8 [13.3%] IDH1-WTs) demonstrated true progression, whereas 17 patients (3 [5%] IDH1-muts and 14 [23.3%] IDH1-WTs) demonstrated psPD (P  =  .004). IDH1-mut GBMs had a lower probability of psPD (hazard ratio: 0.173, 95% CI, 0.047-0.638, P = .008). Among the patients with radiologic signs suggestive of progression (n = 26), psPD was found to be the cause in 3 of 4 (75.0%) of the IDH1-mut GBMs and 14 of 22 (63.6%) of the IDH1-WT GBMs (P = .496). Median overall survival for IDH1-mut and IDH1-WT GBM patients was 40.3 and 23.0 months, respectively (P  < .001).

Conclusions
IDH1-mut GBM patients demonstrate lower absolute rates of psPD expression. Irrespective of GBM subtype, psPD expression was more likely than true progression within 90 days of completing CRT. Continuing adjuvant treatment for IDH1-mut GBMs is suggested if radiologic progression is suspected during this time interval.
RE-EVALUATION OF THE AIR KERMA PRIMARY STANDARD OF THE SMU IN 60Co AND 137Cs GAMMA RAY BEAMS
Authors: Durný Norman 
Published: October 2019

Abstract
The primary standard for air kerma of the Slovak Institute of Metrology (SMU) as a part of national standard of dosimetric quantities of gamma radiation NE028/02, based on cylindrical graphite walled cavity ionization chamber was established in 2002 for the 60Co gamma ray beams. Since then the main role of SMU was to continuously maintain, develop and refurbish the standard with related accessory to ensure international equivalence. Since 2002, a re-evaluation of the active volume of the ionizing chamber, correction factors, the key data, due to adoption of ICRU Report 90(1), and changes of the calibrations methods and corrections of the equipment were made to obtain improved parameters. The range was extended for 137Cs gamma ray beams and key comparisons with the Bureau International des Poids et Mesures (BIPM) were performed. ICRU Report 90(1) implementation led to a decrease of the Gray of −0.84% for 60Co and −0.80% for 137Cs.
Facilitatory/inhibitory intracortical imbalance in REM sleep behavior disorder: early electrophysiological marker of neurodegeneration?
Authors: Lanza Giuseppe , Aricò Debora , Lanuzza Bartolo , Cosentino Filomena Irene Ilaria , Tripodi Mariangela , Giardina Floriana , Bella Rita , Puligheddu Monica , Pennisi Giovanni , Ferri Raffaele , Pennisi Manuela 
Published: October 2019

Abstract

Study Objectives
Previous studies found an early impairment of the short-interval intracortical inhibition (SICI) and intracortical facilitation (ICF) to transcranial magnetic stimulation (TMS) in Parkinson’s disease. However, very little is known on the TMS correlates of rapid eye movement (REM) sleep behavior disorder (RBD), which can precede the onset of a α-synucleinopathy.

Methods
The following TMS measures were obtained from 14 de novo patients with isolated RBD and 14 age-matched healthy controls: resting motor threshold, cortical silent period, latency and amplitude of the motor evoked potentials, SICI, and ICF. A cognitive screening and a quantification of subjective sleepiness (Epworth Sleepiness Scale [ESS]) and depressive symptoms were also performed.

Results
Neurological examination, global cognitive functioning, and mood status were normal in all participants. ESS score was higher in patients, although not suggestive of diurnal sleepiness. Compared to controls, patients exhibited a significant decrease of ICF (median 0.8, range 0.5–1.4 vs. 1.9, range 1.4–2.3; p < 0.01) and a clear trend, though not significant, towards a reduction of SICI (median 0.55, range 0.1–1.4 vs. 0.25, range 0.1–0.3), with a large effect size (Cohen’s d: −0.848). REM Sleep Atonia Index significantly correlated with SICI.

Conclusions
In still asymptomatic patients for a parkinsonian syndrome or neurodegenerative disorder, changes of ICF and, to a lesser extent, SICI (which are largely mediated by glutamatergic and GABAergic transmission, respectively) might precede the onset of a future neurodegeneration. SICI was correlated with the muscle tone alteration, possibly supporting the proposed RBD model of retrograde influence on the cortex from the brainstem.
A Lighter Shade of Brown? Racial Formation and Gentrification in Latino Los Angeles
Authors: Huante Alfredo 
Published: October 2019

AbstractConventional gentrification literature has meaningfully demonstrated how economic inequality is perpetuated in urban settings, but there has been a limited understanding of how racial inequality is maintained. Drawing from participant observation, interviews, and digital ethnography in the barrio of Boyle Heights in Los Angeles that were collected over five years, this study examines how gentrification functions as a racial project and supports new forms of racialization to maintain uneven development along racial lines. Examining the ways that racial formation processes unfurl at the local scale expands conventional understanding of racial formation theory and practice while, simultaneously, illustrating the centrality of place in race-making. This study finds new race and class formations are developed by casting the barrio itself and significant portions of the Mexican American population as “honorary white.” Despite colorblind and post-racial ideologies espoused in majority-minority cities like Los Angeles, this landscape fostered emerging racial formations alongside gentrification processes which have increased racial, political, and economic inequality.
Genotyping-by-Sequencing for the Study of Genetic Diversity inPuccinia triticina
Authors: Aoun Meriem , Kolmer James A. , Breiland Matthew , Richards Jonathan , Brueggeman Robert S. , Szabo Les J. , Acevedo Maricelis 
Published: October 2019

Leaf rust, caused by Puccinia triticina Erikss., is globally the most widespread rust of wheat. Populations of P. triticina are highly diverse for virulence, with many different races found annually. The genetic diversity of P. triticina populations has been previously assessed using different types of DNA markers. Genotyping technologies that provide a higher density of markers distributed across the genome will be more powerful for analysis of genetic and phylogenetic relationships in P. triticina populations. In this study, we utilized restriction-associated DNA (RAD) genotyping-by-sequencing (GBS) adapted for the Ion Torrent sequencing platform for the study of population diversity in P. triticina. A collection of 102 isolates, collected mainly from tetraploid and hexaploid wheat, was used. The virulence phenotypes of the isolates were determined on 20 lines of Thatcher wheat near isogenic for leaf rust resistance genes. Seven races were found among 57 isolates collected from tetraploid wheat, and 21 races were observed among 40 hexaploid wheat type isolates. This is the first study to report durum wheat virulent races to Lr3bg in Tunisia, Lr14a in Morocco, and Lr3bg and Lr28 in Mexico. Ethiopian isolates with high virulence to durum wheat but avirulent on Thatcher (hexaploid wheat) were tested for virulence on a set of durum (tetraploid) differentials. A subset of 30 isolates representing most of the virulence phenotypes in the 102 isolates were genotyped using RAD-GBS. Phylogenetic analysis of 30 isolates using 2,125 single nucleotide polymorphism (SNP) markers showed nine distinct clusters. There was a general correlation between virulence phenotypes and SNP genotypes. The high bootstrap values between clusters of isolates in the phylogenetic tree indicated that RAD-GBS can be used as a new genotyping tool that is fast, simple, high throughput, cost effective, and provides a sufficient number of markers for the study of genetic diversity in P. triticina.[Formula: see text] Copyright © 2020 The Author(s). This is an open access article distributed under the CC BY 4.0 International license .
Use of Botanicals to Suppress Different Stages of the Life Cycle of Fusarium graminearum
Authors: Drakopoulos Dimitrios , Luz Carlos , Torrijos Raquel , Meca Giuseppe , Weber Pascal , Bänziger Irene , Voegele Ralf T. , Six Johan , Vogelgsang Susanne 
Published: October 2019

Fusarium head blight (FHB) is one of the most important cereal diseases worldwide, causing yield losses and contamination of harvested products with mycotoxins. Fusarium graminearum is one of the most common FHB-causing species in wheat and barley cropping systems. We assessed the ability of different botanical extracts to suppress essential stages of the fungal life cycle using three strains of F. graminearum (FG0410, FG2113, and FG1145). The botanicals included aqueous extracts from white mustard (Sinapis alba) seed flour (Pure Yellow Mustard [PYM] and Tillecur [Ti]) as well as milled Chinese galls (CG). At 2% concentration (wt/vol), PYM and Ti completely inhibited growth of mycelium of all F. graminearum strains whereas, at 1%, CG reduced the growth by 65 to 83%, depending on the strain. While PYM and Ti reduced the germination of both conidia and ascospores at 2% (wt/vol), CG was only effective in reducing conidia germination. Perithecia formation of FG0410 but not FG2113 was suppressed by all botanicals. Moreover, application of botanicals on mature perithecia led to a two- to fourfold reduction in discharge of ascospores. Using liquid chromatography (LC) with diode array detection, we quantified the principal glucosinolate component sinalbin of PYM and Ti. LC time-of-flight mass spectrometry was used to demonstrate that the bioactive matrix of CG contains different gallotannins as well as gallic and tannic acids. Possible antifungal mechanisms of the botanical matrices are discussed. The results of this study are promising and suggest that PYM, Ti, and CG should be explored further for efficacy at managing FHB. [Formula: see text] Copyright © 2019 The Author(s). This is an open access article distributed under the CC BY-NC-ND 4.0 International license .
Academic Advocacy: Opportunities to Influence Health and Science Policy Under U.S. Lobbying Law
Authors: Fernandez Lynch Holly , Bateman-House Alison , Rivera Suzanne M. 
Published: October 2019

Medical school faculty and their colleagues in schools of nursing, public health, social work, and elsewhere often research issues of critical importance to health and science policy. When academics engage with government policymakers to advocate for change based on their research, however, they may find themselves engaged in “lobbying,” thereby entering a complex environment of legal requirements and institutional policies that they may not fully understand. To promote academic advocacy, this article explains what is and is not legally permitted when it comes to engaging with policymakers and encourages academic institutions to facilitate permissible advocacy activities.
U.S. law permits academic researchers to conduct certain types of policy-focused advocacy without running afoul of legal restrictions on lobbying. Academics acting in their personal capacities and with their own resources may freely engage with policymakers in any branch of government to provide their expertise and advocate for desired outcomes. When acting in their professional capacities, academics are free to engage in most advocacy activities directed to the executive and judicial branches, and they also may advocate to influence legislation and legislators within certain limits that are particularly relevant to academic work. In all cases, academics must take care to not use restricted funds for lobbying.
Academic researchers have an important role to play in advancing evidence-based health and science policy. They should familiarize themselves with legal restrictions and opportunities to influence policy based on their research, and their institutions should actively support them in doing so.
Effect of General Anesthetics on Caspase-3 Levels in Patients With Aneurysmal Subarachnoid Hemorrhage: A Preliminary Study
Authors: Balasubramanian Mukilan , Kuberan Aswini , Rawat Amit , Dhandapani Sivashanmugam , Panda Nidhi , Kumar Ajay , Sahoo Asish K. , Kumar Munish , Sharma Tanavi , Garcia Paul S. , Bhagat Hemant 
Published: October 2019

Background:
General anesthesia has been associated with neuronal apoptosis and activation of caspases. Apoptosis is a crucial factor in early brain injury following aneurysmal subarachnoid hemorrhage (aSAH). We conducted a double-blind, prospective, randomized pilot study to evaluate the effect of 4 anesthetic agents on cerebrospinal fluid (CSF) and serum caspase-3 levels in aSAH patients.

Materials and Methods:
A total of 44 good-grade aSAH patients with preoperative lumbar drain scheduled for surgical clipping or endovascular coiling were randomized to receive maintenance of anesthesia with propofol, isoflurane, sevoflurane, or desflurane. Caspase-3 levels were measured in CSF and serum samples collected at baseline, 1 hour after induction, and 1 hour after cessation of anesthesia.

Results:
Compared with baseline, there was a decrease in CSF caspase-3 levels and an increase in serum caspase-3 levels 1 hour after exposure to all 4 anesthetic agents; levels returned to baseline values after cessation of anesthesia. Median CSF caspase-3 levels at baseline, 1 hour after anesthesia exposure, and 1 hour after cessation of anesthesia were 0.0679, 0.0004, and 0.0689 ng/mL, respectively (P<0.05). Median serum caspase-3 levels at baseline, 1 hour after anesthesia exposure, and 1-hour after cessation of anesthesia were 0.0028, 0.0682, and 0.0044 ng/mL, respectively (P<0.05).

Conclusions:
Propofol, isoflurane, sevoflurane, or desflurane have similar effects on CSF and serum caspase-3. The reduction of intraoperative CSF caspase-3 levels suggests a possible role for general anesthesia in neuroresuscitation by slowing the neuronal apoptotic pathway.
Clinical Course, Associated Factors, and Blood Pressure Profile of Delayed-Onset Postpartum Preeclampsia
Authors: Redman Emily K. , Hauspurg Alisse , Hubel Carl A. , Roberts James M. , Jeyabalan Arun 
Published: October 2019

OBJECTIVE:
To identify clinical risk factors associated with development of delayed-onset postpartum preeclampsia, and to characterize management and subsequent risk of cardiovascular disease.

METHODS:
This is a case–control study of women admitted to the hospital with delayed-onset postpartum preeclampsia (defined as a new diagnosis of preeclampsia presenting between 48 hours and 6 weeks postpartum) compared with women with full-term, uncomplicated pregnancies without a hypertensive diagnosis or diabetes. Included women delivered between January 2014 and June 2018 at a single tertiary care center. Women with an antenatal diagnosis of preeclampsia or chronic hypertension were excluded. Univariate analysis was used to identify risk factors associated with delayed-onset postpartum preeclampsia and to compare rates of hypertension and antihypertensive medication use, with follow-up beyond 3 months postpartum among a subset of women in the control group who were matched 2:1 with women in the case group. Multivariable logistic regression was performed and included covariates identified in a backward stepwise approach.

RESULTS:
Compared with women in the control group (n=26,936), women with delayed-onset postpartum preeclampsia (n=121) were significantly more likely to be of non-Hispanic black race (31.4% vs 18.0%), obese (39.7% vs 20.1%), and deliver by cesarean (40.5% vs 25.8%), all P<.01. For women diagnosed with delayed-onset postpartum preeclampsia, the median postpartum day of presentation was 7.0 (interquartile range 5.0–9.0), with 93.4% presenting secondary to symptoms, which was most commonly a headache. A majority (73.6%) underwent imaging studies, and 49.6% received intravenous antihypertensive agents. A total of 86 (71.0%) women with delayed-onset postpartum preeclampsia and 169 (72.8%) women in the control group had longer term information available, with a median follow-up time of 1.5 years (interquartile range 0.8–2.8). Delayed-onset postpartum preeclampsia was associated with higher blood pressures at 3 months postpartum or later (median systolic 130 mm Hg vs 112 mm Hg and median diastolic 80 mm Hg vs 70 mm Hg, P<.001).

CONCLUSION:
Delayed-onset postpartum preeclampsia is associated with variable management strategies. There is substantial overlap between the clinical risk factors for delayed-onset postpartum preeclampsia and antepartum preeclampsia. Our findings suggest that delayed-onset postpartum preeclampsia is also associated with an increased risk of progression to chronic hypertension.
Self-Removal of a Urinary Catheter After Urogynecologic Surgery
Authors: Shatkin-Margolis Abigail , Yook Eunsun , Hill Austin M. , Crisp Catrina C. , Yeung Jennifer , Kleeman Steven , Pauls Rachel N. 
Published: October 2019

OBJECTIVE:
To evaluate whether self-discontinuation of a transurethral catheter is noninferior to office discontinuation in patients requiring indwelling catheterization for postoperative urinary retention after pelvic reconstructive surgery.

METHODS:
In this randomized noninferiority trial, patients with postoperative urinary retention after pelvic reconstructive surgery were assigned to self-discontinuation or office discontinuation of their catheter 1 week after surgery. The primary outcome was a noninferiority comparison of postoperative urinary retention at 1 week. Self-discontinuation patients were instructed on home catheter removal on postoperative day 7. Office discontinuation patients underwent a standard voiding trial on postoperative day 6–8. Postoperative urinary retention at 1 week was defined as continued catheterization on postoperative day 6–8. Secondary outcomes included urinary tract infections (UTI), residual volume at 2 weeks, duration of catheter use, recurrent postoperative urinary retention, number of patient encounters, and visual analog scales (VAS) regarding patient experience. Given a known incidence of postoperative urinary retention at 1 week (16%) and 15% noninferiority margin, a sample size of 74 per group (n=148) was planned.

RESULTS:
From January 2017 through March 2019, 217 women were screened and 157 were analyzed: 78 self-discontinuation and 79 office discontinuation. Demographic characteristics and surgeries performed were similar. Eleven patients in each group experienced postoperative urinary retention at 1 week (14.1% self-discontinuation vs 13.9% office discontinuation, P=.97), establishing noninferiority (difference 0.2%, 95% CI: −1.00, 0.10). There were significantly fewer patient encounters with self-discontinuation (42/78, 53.8% vs 79/79, 100%). Self-discontinuation patients demonstrated better VAS scores regarding pain, ease, disruption, and likelihood to use the same method again (all P<.05). Though the rate of UTI was high, there was no difference between groups (59.0% self-discontinuation vs 66.7% office discontinuation, P=.32). Residual volume at 2 weeks, recurrent postoperative urinary retention, and duration of catheter use were also similar.

CONCLUSION:
Self-discontinuation of a transurethral catheter was noninferior to office-based discontinuation in the setting of postoperative urinary retention after pelvic reconstructive surgery. Self-discontinuation resulted in fewer patient encounters and improved patient experience.

CLINICAL TRIAL REGISTRATION:

ClinicalTrials.gov, NCT02996968.
Adverse Childhood Experiences Among Gynecology Patients With Chronic Pelvic Pain
Authors: Krantz Tessa E. , Andrews Nicholas , Petersen Timothy R. , Dunivan Gena C. , Montoya Maria , Swanson Naomi , Wenzl Cynthia K. , Zambrano Julissa R. , Komesu Yuko M. 
Published: October 2019

OBJECTIVE:
To compare adverse childhood experiences (ACEs) in women with chronic pelvic pain with a control group, and describe occurrence of specific ACEs in women with chronic pelvic pain.

METHODS:
This case-control study examined the relationship between history of ACEs, traumatic events occurring during childhood as defined by the Centers for Disease Control and Prevention (CDC), and chronic pelvic pain. Patients diagnosed with chronic pelvic pain (n=60) were age-matched to a control group of women without chronic pelvic pain (n=60). All participants completed validated measures to detect for presence of any of the 11 ACEs as identified by the CDC's Behavioral Risk Factor Surveillance System ACE Module.

RESULTS:
Mean participant age was 40 (±11 years). Total numbers of ACEs were elevated in chronic pelvic pain participants compared with a control group (median 4 [interquartile range 2–6] vs median 1 [interquartile range 0–4], P<.001) and 53% of chronic pelvic pain participants had four or more ACEs, compared with 27% of the control group (odds ratio [OR] 3.14; 95% CI 1.46–6.75). All categories of abuse were more prevalent in chronic pelvic pain compared with the control group: physical (43% vs 15%, OR 4.3; 95% CI 1.8–10.4; P=.001), sexual (55% vs 23%, OR 4.0; 95% CI 1.8–8.8; P<.001) and verbal or emotional (62% vs 33%, OR 3.2; 95% CI 1.5–6.8; P=.003). Regarding household challenges, the subcategory most prevalent in chronic pelvic pain participants compared with the control group was that of witnessed domestic violence (35% vs 8%, OR 5.9; 95% CI 2.1–17.1, P<.001).

CONCLUSION:
Chronic pelvic pain participants had a greater than threefold odds of having a history of childhood abuse and having witnessed domestic violence during childhood compared with the control group. Women with chronic pelvic pain had increased numbers of ACEs and 53% had four or more ACEs, crossing a threshold that others have found to predict poor overall health outcomes.