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https://www.readbyqxmd.com/read/29925109/external-quality-monitoring-of-the-cervical-cytopathological-exams-in-the-rio-de-janeiro-city
#1
Vânia Stiepanowez de Oliveira Rocha, Solange da Silva Malfacini, Alex Moreira Gomes, Cláudia Ramos Marques da Rocha
OBJECTIVE:  To discuss the implementation and contributions of the External Quality Monitoring in the city of Rio de Janeiro and to analyze the performance of the main providers of cervical cytopathology in this city from September 2013 to March 2017, here referred to as "Alpha laboratory" and "Beta laboratory." METHODS:  Observational, cross-sectional, retrospective study using information from the Cervical Cancer Control Information System (SISCOLO, in the Portuguese acronym), municipal coordination module, External Quality Monitoring report...
June 20, 2018: Revista Brasileira de Ginecologia e Obstetrícia
https://www.readbyqxmd.com/read/29925104/right-tkr-patients-treated-with-enhanced-pain-and-rehabilitation-protocols-can-drive-at-2-weeks
#2
David F Dalury, Danielle M Chapman
An important milestone in the recovery following total knee replacement (TKR) is the ability to return to driving. With advances in pain control and the widespread introduction of rapid rehab programs, we hypothesized that the ability to drive would also return sooner than had been traditionally observed. In our group of consecutive right TKR patients, using a driving simulator, we showed that at the 2-week mark, 36 of the 40 patients tested had returned to their preoperative driving capabilities and the other 4 had reached baseline at 3 weeks...
June 20, 2018: Journal of Knee Surgery
https://www.readbyqxmd.com/read/29925099/a-systematic-review-on-promoting-adherence-to-antiretroviral-therapy-in-hiv-infected-patients-using-mobile-phone-technology
#3
Yuri Quintana, Eduardo A Gonzalez Martorell, Darren Fahy, Charles Safran
OBJECTIVE:  Adherence to antiretroviral therapy (ART) is paramount to successful long-term suppression of human immunodeficiency virus (HIV). For poorly adherent patients with HIV, barriers to remaining adherent may be overcome by the implementation of targeted interventions delivered via mobile devices. This systematic review is focused specifically on mobile phone technologies to deliver adherence interventions in HIV/acquired immunodeficiency syndrome (AIDS) populations. METHODS:  This review (PROSPERO #CRD42017065131) systematically extracted data from published literature from five databases on mobile phone interventions to improve adherence to ART for HIV...
April 2018: Applied Clinical Informatics
https://www.readbyqxmd.com/read/29925090/erratum-to-a-double-blind-randomized-placebo-controlled-trial-of-17-alpha-hydroxyprogesterone-caproate-in-the-management-of-preterm-premature-rupture-of-membranes
#4
Elizabeth S Langen, Anita Sit, Katie Sherwin, Deirdre J Lyell, Yair J Blumenfeld, Yasser Y El-Sayed
No abstract text is available yet for this article.
June 20, 2018: American Journal of Perinatology
https://www.readbyqxmd.com/read/29925070/osmoregulation-in-polycystic-kidney-disease-relationship-with-cystogenesis-and-hypertension
#5
Conor F Underwood, Jacqueline K Phillips, Cara M Hildreth
Polycystic kidney disease (PKD) is a group of monogenetic conditions characterised by the progressive accumulation of multiple renal cysts and hypertension. One of the earliest features of PKD is a reduction in urinary concentrating capacity that impairs extracellular fluid conservation. Urinary concentrating impairment predisposes PKD patients to periods of hypohydration when fluid loss is not adequately compensated by fluid intake. The hypohydrated state provides a blood hyperosmotic stimulus for vasopressin release to minimise further water loss...
2018: Annals of Nutrition & Metabolism
https://www.readbyqxmd.com/read/29925069/vasopressin-and-diabetic-kidney-disease
#6
Ray El Boustany
BACKGROUND: Diabetic nephropathy has become the most common cause of chronic kidney disease (CKD). Despite the progress accomplished in therapy, the prevalence of renal disorders remains high. Some modifiable factors driving the increase in incidence of CKD, in diabetes and other settings, might have been overlooked. Consistent evidence supports a role for vasopressin, hydration state, and urine concentration in kidney health. SUMMARY: Plasma vasopressin is elevated in diabetes, even if metabolic control is good...
2018: Annals of Nutrition & Metabolism
https://www.readbyqxmd.com/read/29925066/the-vasopressin-system-in-the-risk-of-diabetes-and-cardiorenal-disease-and-hydration-as-a-potential-lifestyle-intervention
#7
Sofia Enhörning, Olle Melander
BACKGROUND: Type 2 diabetes, chronic kidney disease (CKD) and its cardiovascular complications are increasing as health problems worldwide. These diseases are interrelated with overlapping occurrence and once diabetes is established, the risk of cardiorenal disease is dramatically elevated. Thus, a search for unifying modifiable risk factors is key for effective prevention. SUMMARY: Elevated fasting plasma concentration of vasopressin, measured with the marker copeptin, predicts new onset type 2 diabetes as well as renal function decline...
2018: Annals of Nutrition & Metabolism
https://www.readbyqxmd.com/read/29925064/once-weekly-administration-of-sustained-release-growth-hormone-in-korean-prepubertal-children-with-idiopathic-short-stature-a-randomized-controlled-phase-ii-study
#8
Jin Soon Hwang, Hae Sang Lee, Kee-Hyoung Lee, Han-Wook Yoo, Dae-Yeol Lee, Byung-Kyu Suh, Cheol Woo Ko, Woo Yeong Chung, Dong-Kyu Jin, Choong Ho Shin, Heon-Seok Han, Song Han, Ho-Seong Kim
BACKGROUND/AIMS: To determine the optimal dose of LB03002, a sustained-release, once-weekly formulation of recombinant human growth hormone (rhGH), and to compare its efficacy and safety with daily rhGH in children with idiopathic short stature (ISS). METHODS: This multicenter, randomized, open-label, phase II study included GH-naïve, prepubertal children with ISS, randomized to receive daily rhGH 0.37 mg/kg/week (control, n = 16), LB03002 0.5 mg/kg/week (n = 14), or LB03002 0...
June 20, 2018: Hormone Research in Pædiatrics
https://www.readbyqxmd.com/read/29925057/pollution-characteristics-and-health-risk-assessment-of-heavy-metals-in-the-vegetable-bases-of-northwest-china
#9
Rukeya Sawut, Nijat Kasim, Balati Maihemuti, Li Hu, Abdugheni Abliz, Abdusalam Abdujappar, Miradil Kurban
The objective of this study was to investigate heavy metal contamination in four major vegetable bases and determine the health risks of residents in the vicinity of the highly urbanized city Urumqi in Xinjiang, China. In this paper, we determined the contents of six heavy metals (i.e., As, Zn, Cd, Cr, Hg, and Pb) in surface soil and groundwater to evaluate the levels of heavy metal pollution and human health risks using the pollution index (PI), the Nemerow integrated pollution index (NIPI), the ecological risk factor (Ei r ), risk index (RI) and the health risk assessment model...
June 17, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29925054/influence-of-interspecific-interactions-on-avoidance-response-to-contamination
#10
Daniel C V R Silva, Cristiano V M Araújo, Rodrigo J Marassi, Sheila Cardoso-Silva, Morun B Neto, Gilmar C Silva, Rui Ribeiro, Flávio T Silva, Teresa C B Paiva, Marcelo L M Pompêo
An increasing number of studies have shown the ability of organisms to escape from toxic effects due to contamination, by moving spatially towards less contaminated habitats. However, this issue has been investigated in monospecific scenarios, without considering possible interactions between species during the contamination avoidance process. It is widely known that the spatial distribution of one species can be affected by another one, in different ways. Therefore, the main question addressed in the present study was as follows: Might interspecific interaction between the freshwater fish Danio rerio (zebrafish) and Poecilia reticulata (guppy) change their behavior patterns in terms of avoidance in the presence of a copper gradient? Zebrafish and guppies exposed to a copper gradient were tested for avoidance responses in a free-choice, non-forced, static, multi-compartmented exposure system, using two distinct approaches: (1) monospecific tests, in which only one species was exposed to the copper gradient, at two different population densities; and (2) multispecific tests, in which both species were tested simultaneously...
June 17, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29925040/cellular-trajectories-and-molecular-mechanisms-of-ipsc-reprogramming
#11
REVIEW
Effie Apostolou, Matthias Stadtfeld
The discovery of induced pluripotent stem cells (iPSCs) has solidified the concept of transcription factors as major players in controlling cell identity and provided a tractable tool to study how somatic cell identity can be dismantled and pluripotency established. A number of landmark studies have established hallmarks and roadmaps of iPSC formation by describing relative kinetics of transcriptional, protein and epigenetic changes, including alterations in DNA methylation and histone modifications. Recently, technological advancements such as single-cell analyses, high-resolution genome-wide chromatin assays and more efficient reprogramming systems have been used to challenge and refine our understanding of the reprogramming process...
June 16, 2018: Current Opinion in Genetics & Development
https://www.readbyqxmd.com/read/29925038/milestone-ratings-and-supervisory-role-categorizations-swim-together-but-is-the-water-muddy
#12
Daniel J Schumacher, Kathleen W Bartlett, Sean P Elliott, Catherine Michelson, Tanvi Sharma, Lynn C Garfunkel, Beth King, Alan Schwartz
PURPOSE: This single specialty, multi-institutional study aimed to determine: 1) the association between milestone ratings for individual competencies and average milestone ratings (AMRs) and 2) the association between AMRs and recommended supervisory role categorizations made by individual clinical competency committee (CCC) members. METHODS: During the 2015-16 academic year, CCC members at 14 pediatric residencies reported milestone ratings for 21 competencies and recommended supervisory role categories (may not supervise, may supervise in some settings, may supervise in all settings) for residents they reviewed...
June 17, 2018: Academic Pediatrics
https://www.readbyqxmd.com/read/29925036/converting-lignin-derived-phenolic-aldehydes-into-microbial-lipid-by-trichosporon-cutaneum
#13
Mingshan Hu, Juan Wang, Qiuqiang Gao, Jie Bao
Lignin is one of the major components of lignocellulose biomass and chemically degrades into phenolic aldehydes including 4-hydroxybenzaldehyde, vanillin, and syringaldehyde. No lipid accumulation from the phenolic aldehydes by oleaginous microbes had been succeeded. Compared with vanillin and syringaldehyde, T. cutaneum ACCC 20271 have better tolerance to 4-hydroxybenzaldehyde. 4-Hydroxybenzaldehyde was found to be able as the substrate for lipid accumulation, while vanillin and syringaldehyde were only converted to less toxic phenolic alcohols and acids without observable lipid accumulation, perhaps due to the space shelling of methoxyl group(s) in the structures...
June 17, 2018: Journal of Biotechnology
https://www.readbyqxmd.com/read/29925035/molecular-filters-for-noise-reduction
#14
Luca Laurenti, Attila Csikasz-Nagy, Marta Kwiatkowska, Luca Cardelli
Living systems are inherently stochastic and operate in a noisy environment, yet despite all these uncertainties, they perform their functions in a surprisingly reliable way. The biochemical mechanisms used by natural systems to tolerate and control noise are still not fully understood, and this issue also limits our capacity to engineer reliable, quantitative synthetic biological circuits. We study how representative models of biochemical systems propagate and attenuate noise, accounting for intrinsic as well as extrinsic noise...
June 19, 2018: Biophysical Journal
https://www.readbyqxmd.com/read/29925031/influence-of-pulsed-electric-fields-and-mitochondria-cytoskeleton-interactions-on-cell-respiration
#15
Ishan Goswami, Justin B Perry, Mitchell E Allen, David A Brown, Michael R von Spakovsky, Scott S Verbridge
Pulsed electric fields with microsecond pulse width (μsPEFs) are used clinically; namely, irreversible electroporation/Nanoknife is used for soft tissue tumor ablation. The μsPEF pulse parameters used in irreversible electroporation (0.5-1 kV/cm, 80-100 pulses, ∼100 μs each, 1 Hz frequency) may cause an internal field to develop within the cell because of the disruption of the outer cell membrane and subsequent penetration of the electric field. An internal field may disrupt voltage-sensitive mitochondria, although the research literature has been relatively unclear regarding whether such disruptions occur with μsPEFs...
June 19, 2018: Biophysical Journal
https://www.readbyqxmd.com/read/29925029/force-spectrum-microscopy-using-mitochondrial-fluctuations-of-control-and-atp-depleted-cells
#16
Wenlong Xu, Elaheh Alizadeh, Ashok Prasad
A single-cell assay of active and passive intracellular mechanical properties of mammalian cells could give significant insight into cellular processes. Force spectrum microscopy (FSM) is one such technique, which combines the spontaneous motion of probe particles and the mechanical properties of the cytoskeleton measured by active microrheology using optical tweezers to determine the force spectrum of the cytoskeleton. A simpler and noninvasive method to perform FSM would be very useful, enabling its widespread adoption...
June 19, 2018: Biophysical Journal
https://www.readbyqxmd.com/read/29925024/ionomycin-induced-changes-in-membrane-potential-alter-electroporation-outcomes-in-hl-60-cells
#17
Erik J Aiken, Brian G Kilberg, Siyuan Yu, Susan C Hagness, John H Booske
Previous studies have shown greater fluorophore uptake during electroporation on the anode-facing side of the cell than on the cathode-facing side. Based on these observations, we hypothesized that hyperpolarizing a cell before electroporation would decrease the requisite pulsed electric field intensity for electroporation outcomes, thereby yielding a higher probability of reversible electroporation at lower electric field strengths and a higher probability of irreversible electroporation (IRE) at higher electric field strengths...
June 19, 2018: Biophysical Journal
https://www.readbyqxmd.com/read/29925021/gating-currents-in-the-hv1-proton-channel
#18
Victor De La Rosa, Ian Scott Ramsey
The Hv1 proton channel shares striking structural homology with fourth transmembrane helical segment-type voltage-sensor (VS) domains but manifests distinctive functional properties, including a proton-selective "aqueous" conductance and allosteric control of voltage-dependent gating by changes in the transmembrane pH gradient. The mechanisms responsible for Hv1's functional properties remain poorly understood, in part because methods for measuring gating currents that directly report VS activation have not yet been described...
June 19, 2018: Biophysical Journal
https://www.readbyqxmd.com/read/29925014/increased-flexibility-between-stems-of-intramolecular-three-way-junctions-by-the-insertion-of-bulges
#19
Carolyn E Carr, Luis A Marky
Intramolecular junctions are a ubiquitous structure within DNA and RNA; three-way junctions in particular have high strain around the junction because of the lack of flexibility, preventing the junctions from adopting conformations that would allow for optimal folding. In this work, we used a combination of calorimetric and spectroscopic techniques to study the unfolding of four intramolecular three-way junctions. The control three-way junction, 3H, has the sequence d(GAAATTGCGCT5 GCGCGTGCT5 GCACAATTTC), which has three arms of different sequences...
June 19, 2018: Biophysical Journal
https://www.readbyqxmd.com/read/29925002/an-hsp20-fbxo4-axis-regulates-adipocyte-function-through-modulating-ppar%C3%AE-ubiquitination
#20
Jiangtong Peng, Yutian Li, Xiaohong Wang, Shan Deng, Jenna Holland, Emily Yates, Jing Chen, Haitao Gu, Kobina Essandoh, Xingjiang Mu, Boyu Wang, Robert K McNamara, Tianqing Peng, Anil G Jegga, Tiemin Liu, Takahisa Nakamura, Kai Huang, Diego Perez-Tilve, Guo-Chang Fan
Exposure to cold temperature is well known to upregulate heat shock protein (Hsp) expression and recruit and/or activate brown adipose tissue and beige adipocytes in humans and animals. However, whether and how Hsps regulate adipocyte function for energy homeostatic responses is poorly understood. Here, we demonstrate a critical role of Hsp20 as a negative regulator of adipocyte function. Deletion of Hsp20 enhances non-shivering thermogenesis and suppresses inflammatory responses, leading to improvement of glucose and lipid metabolism under both chow diet and high-fat diet conditions...
June 19, 2018: Cell Reports
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