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https://www.readbyqxmd.com/read/28707354/additive-neurogenesis-supported-by-multiple-stem-cell-populations-mediates-adult-spinal-cord-development-a-spatio-temporal-statistical-mapping-analysis-in-a-teleost-model-of-indeterminate-growth
#1
Ruxandra F Sîrbulescu, Iulian Ilieş, Annette Meyer, Günther K H Zupanc
The knifefish Apteronotus leptorhynchus exhibits indeterminate growth throughout adulthood. This phenomenon extends to the spinal cord, presumably through the continuous addition of new neurons and glial cells. However, little is known about the developmental dynamics of cells added during adult growth. The present work characterizes the structural and functional development of the adult spinal cord in this model organism through a comprehensive quantitative analysis of the spatial and temporal dynamics of new cells at various developmental stages...
July 13, 2017: Developmental Neurobiology
https://www.readbyqxmd.com/read/28702716/can-the-pulmonary-artery-wedge-pressure-be-used-reliably-as-a-surrogate-for-the-left-atrial-mean-pressure-in-pre-fontan-evaluation
#2
Bassel Mohammad Nijres, Ra-Id Abdulla, Sawsan Awad, Joshua Murphy
The correlation between mean pulmonary artery wedge pressure (PAWP) and left atrial mean pressure (LAMP) has been poorly studied in patients with single ventricle (SV) physiology (Bernstein et al. in Pediatr Cardiol 33: 15-20 2012). The aim of this study is to determine if the PAWP can be used safely as a surrogate to the LAMP to calculate the pulmonary vascular resistance (PVR) during the pre-Fontan evaluation. Also, we aimed to understand if the presence of significant systemic-to-pulmonary collaterals (SPCs) is a confounding factor for accurate estimation of the LAMP...
July 12, 2017: Pediatric Cardiology
https://www.readbyqxmd.com/read/28701658/drosophila-dock-family-protein-zizimin-involves-in-pigment-cell-differentiation-in-pupal-retinae
#3
Fumito Ozasa, Kazushige Morishita, Ngoc Anh Suong Dang, Seiji Miyata, Hideki Yoshida, Masamitsu Yamaguchi
The dedicator of cytokinesis (DOCK) family proteins are known as one of guanine nucleotide exchange factors (GEFs), that contribute to cellular signaling processes by activating small G proteins. Although mammalian Zizimin is known to be a GEF for Cdc42 of Rho family small GTPase, its role in vivo is not well understood. Here we studied in vivo function of Drosophila Zizimin (Ziz). Knockdown of Ziz in eye imaginal discs induced the rough eye phenotype accompanied with fusion of ommatidia, loss of bristles and loss of pigments...
July 13, 2017: Cell Structure and Function
https://www.readbyqxmd.com/read/28662852/ionic-liquid-functionalization-of-semi-packed-columns-for-high-performance-gas-chromatographic-separations
#4
Bishnu P Regmi, Ryan Chan, Masoud Agah
Gas chromatography columns fabricated using microelectromechanical system (MEMS) technology provide a number of clear advantages. However, successful deposition of stationary phases having a wide application range remains an important technical challenge. In this paper, we report, for the first time, on the deposition of room temperature ionic liquids (RTILs)-a versatile class of stationary phases-inside the channels of semi-packed columns (SPCs) for high-performance gas chromatographic separation of complex chemical mixtures...
August 11, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28588272/mechanism-of-superior-luminescent-and-high-efficiency-photocatalytic-properties-of-eu-doped-calcium-aluminate-by-low-cost-self-propagating-combustion-synthesis-technique
#5
Jiancun Rao, Yujin Wang, Wen Wang, Hua Ke, Yechen Li, Yang Zhao, Zhiliang Diao, Dechang Jia, Yu Zhou
Eu-doped calcium aluminate was synthesized via the low-cost self-propagating combustion synthesis (SPCS) technique, whose phase constitutions were identified as Ca9Al6O18 and Ca3Al2O6. The Ca(2+) ions in Ca9Al6O18 rather than Ca3Al2O6 phase were replaced by Eu(3+) ions. The product exhibits the superior luminescent property and photocatalytic activity, which may find potential applications in the display devices and environment treatments.
June 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28587158/low-symmetry-mixed-fluorinated-subphthalocyanines-as-fluorescence-imaging-probes-in-mda-mb-231-breast-tumor-cells
#6
Katherine J McAuliffe, Megan A Kaster, Regina G Szlag, Evan R Trivedi
Boron subphthalocyanines (SPcs) are aromatic macrocycles that possess a combination of physical and optical properties that make them excellent candidates for application as fluorescent imaging probes. These molecules have intense electronic absorption and emission, and structural versatility that allows for specific tuning of physical properties. Herein, we report the synthesis of a series of low-symmetry fluorinated SPcs and compare them to analogous compounds with varying numbers of peripheral fluorine atoms and varied aromaticity...
June 1, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28509722/rationale-for-nebivolol-valsartan-combination-for-hypertension-review-of-preclinical-and-clinical-data
#7
Thomas D Giles, John R Cockcroft, Bertram Pitt, Abhijeet Jakate, Harold M Wright
: To treat hypertension, combining two or more antihypertensive drugs from different classes is often necessary. β-Blockers and renin-angiotensin-aldosterone system inhibitors, when combined, have been deemed 'less effective' based on partially overlapping mechanisms of action and limited evidence. Recently, the single-pill combination (SPC) of nebivolol (Neb) 5 mg - a vasodilatory β1-selective antagonist/β3 agonist - and valsartan 80 mg, an angiotensin II receptor blocker, was US Food and Drug Administration-approved for hypertension...
May 15, 2017: Journal of Hypertension
https://www.readbyqxmd.com/read/28454633/effective-cardiac-index-and-systemic-pulmonary-collaterals-evaluated-by-cardiac-magnetic-resonance-late-after-fontan-palliation
#8
Lamia Ait Ali, Alessandra Cadoni, Giuseppe Rossi, Petra Keilberg, Claudio Passino, Pierluigi Festa
The regulation of cardiac output in the Fontan circuit is not completely understood. Systemic-pulmonary collaterals (SPCs) are frequent in patients with univentricular heart, and their clinical significance and management remain controversial. The aims of our study were to identify factors associated with SPCs' flow at late follow-up after Fontan and evaluate the relation between SPCs flow (QSPCs) and the effective cardiac index (CI). From our cardiac magnetic resonance database, we identified all Fontan patients with a complete set of flow measurements allowing calculation of QSPCs and effective CI...
March 29, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28421722/second-primary-cancer-risk-among-kidney-cancer-patients-in-korea-a-population-based-cohort-study
#9
Jae Young Joung, Whi-An Kwon, Jiwon Lim, Chang-Mo Oh, Kyu-Won Jung, Sung Han Kim, Ho Kyung Seo, Weon Seo Park, Jinsoo Chung, Kang Hyun Lee, Young-Joo Won
Purpose: Secondary primary cancers (SPCs) commonly arise in patients with renal cell carcinoma (RCC). We designed the present study to estimate the SPC incidence in Korean patients with RCC. Materials and Methods: The study cohort was population-based and consisted of 40,347 individuals from the Korean Central Cancer Registry who were diagnosed with primary renal cancer between 1993 and 2013. Standardized incidence ratios (SIRs) for SPCs were estimated for different ages at diagnosis, latencies, diagnostic periods, and treatments...
April 19, 2017: Cancer Research and Treatment: Official Journal of Korean Cancer Association
https://www.readbyqxmd.com/read/28419010/extending-short-peripheral-catheter-dwell-time-a-best-practice-discussion
#10
Brenda Ansel, Michelle Boyce, Jennifer L Embree
Complications involving short peripheral catheters (SPCs) can significantly affect health care costs, patient quality of life, morbidity, mortality, and treatment expense, especially when the hospital stay is lengthened. This article examines the relationship between SPC dwell time and the incidence of phlebitis and potential bacteremia. The literature is replete with most studies supporting SPCs remaining in situ until a clinical reason warrants catheter removal. Removing and not routinely restarting unneccessary intravenous catheters can help prevent catheter-related infections and other vascular complications and reduce cost...
May 2017: Journal of Infusion Nursing: the Official Publication of the Infusion Nurses Society
https://www.readbyqxmd.com/read/28408662/the-glial-cell-derived-neurotrophic-factor-gdnf-responsive-phosphoprotein-landscape-identifies-raptor-phosphorylation-required-for-spermatogonial-progenitor-cell-proliferation
#11
Min Wang, Yueshuai Guo, Mei Wang, Tao Zhou, Yuanyuan Xue, Guihua Du, Xiang Wei, Jing Wang, Lin Qi, Hao Zhang, Lufan Li, Lan Ye, Xuejiang Guo, Xin Wu
Cytokine-dependent renewal of stem cells is a fundamental requisite for tissue homeostasis and regeneration. Spermatogonial progenitor cells (SPCs) including stem cells support life-long spermatogenesis and male fertility, but pivotal phosphorylation events that regulate fate decisions in SPCs remain unresolved. Here, we described a quantitative mass-spectrometry-based proteomic and phosphoproteomic analyses of SPCs following sustained stimulation with glial cell-derived neurotrophic factor (GDNF), an extrinsic factor supporting SPC proliferation...
June 2017: Molecular & Cellular Proteomics: MCP
https://www.readbyqxmd.com/read/28401708/how-veterans-health-administration-suicide-prevention-coordinators-assess-suicide-risk
#12
James L Pease, Jeri E Forster, Collin L Davidson, Brooke Dorsey Holliman, Emma Genco, Lisa A Brenner
This cross-sectional study was designed to examine the suicide risk assessment practices of Suicide Prevention Coordinators (SPCs) within the Veterans Health Administration. Specifically, this study sought to (1) identify factors SPCs consider most important in assessing risk and patient priority; (2) measure the level of consistency and agreement between SPCs in assessing suicide risk and prioritizing cases; and (3) measure individual SPC consistency between cases. SPCs (n = 63) responded to online survey questions about imminent and prolonged risk for suicide in response to 30 fictional vignettes...
March 2017: Clinical Psychology & Psychotherapy
https://www.readbyqxmd.com/read/28356721/the-influence-of-wearing-schemes-and-supportive-telephone-calls-on-adherence-in-accelerometry-measurement-results-of-a-randomized-controlled-trial
#13
Neeltje van den Berg, Sabina Ulbricht, Thea Schwaneberg, Kerstin Weitmann, Franziska Weymar, Stefan Groß, Marcus Dörr, Wolfgang Hoffmann
BACKGROUND: Physical activity (PA) can be assessed by accelerometer monitors. However, a high adherence to wearing this device is essential to obtain valid data. In this study, the influence of different wearing schemes and additional supportive phone calls (SPCs) on adherence was examined. METHODS: A randomized study with four groups was conducted in the context of a health examination program among participants aged 40-75 years without a history of cardiovascular diseases...
2017: Patient Preference and Adherence
https://www.readbyqxmd.com/read/28286210/using-a-3-proton-density-fat-fraction-as-a-cut-off-value-increases-sensitivity-of-detection-of-hepatic-steatosis-based-on-results-from-histopathology-analysis
#14
Patrik Nasr, Mikael F Forsgren, Simone Ignatova, Nils Dahlström, Gunnar Cedersund, Olof Dahlqvist Leinhard, Bengt Norén, Mattias Ekstedt, Peter Lundberg, Stergios Kechagias
It is possible to estimate hepatic triglyceride content by calculating the proton density fat fraction (PDFF), using proton magnetic resonance spectroscopy ((1)H-MRS), instead of collecting and analyzing liver biopsy specimens to detect steatosis. However, the current PDFF cut-off value (5%) used to define steatosis by magnetic resonance was derived from studies that did not use histopathology as the reference standard. We performed a prospective study to determine the accuracy of (1)H-MRS PDFF in the measurement of steatosis using histopathology analysis as the standard...
March 9, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28274421/screening-and-evaluation-of-active-compounds-in-polyphenol-mixtures-by-hplc-coupled-with-chemical-methodology-and-its-application
#15
Yue Zhao, Ying Wang, Zi-Tao Jiang, Rong Li
An off-line high performance liquid chromatography (HPLC) coupled with chemical methods has been developed to evaluate antioxidant activity of 11 standard polyphenol compounds (SPCs) and vitamin C (Vc) in terms of radical scavenging abilities. The structure-activity relationships of each SPC were also discussed. SPCs showed different abilities in scavenging 2,2-diphenyl-1-picrylhydrazyl (DPPH), 2,2'-azinobis-3-ethyl-benzthiazoline-6-sulphonate (ABTS(+)) and hydroxyl (OH) free radicals. Among SPCs, quercetin and kaempferol, as typical flavonoids, displayed the greatest radical-scavenging activities and even exhibited higher activity in OH radical removal ability than that of Vc...
July 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28242577/risk-of-second-primary-cancer-associated-with-pre-diagnostic-smoking-alcohol-and-obesity-in-women-with-keratinocyte-carcinoma
#16
Sang Min Park, Tricia Li, Shaowei Wu, Wen-Qing Li, Abrar A Qureshi, Meir Stampfer, Eunyoung Cho
Keratinocyte carcinoma (KC), which includes basal-cell carcinoma (BCC) and squamous-cell cancer (SCC), has been associated with an increased risk of second primary cancers (SPCs), although the reason for this increase is unknown. We assessed the effects of smoking, alcohol, and obesity prior to the diagnosis of KC on the development of SPCs, as these are well-established risk factors for multiple cancers and may also contribute to the increased risk of SPCs among those with KC. A total of 15,628 women with self-reported KC were identified in the Nurses' Health Study...
April 2017: Cancer Epidemiology
https://www.readbyqxmd.com/read/28210920/choosing-the-appropriate-side-for-subcutaneous-port-catheter-placement-in-patients-with-mastectomy-ipsilateral-or-contralateral
#17
Omer Fatih Nas, Kadir Hacikurt, Ahmet Kaya, Nurullah Dogan, Bekir Sanal, Guven Ozkaya, Halit Ziya Dundar, Cuneyt Erdogan
PURPOSE: To evaluate long-term clinical follow-up results of implanting subcutaneous port catheters (SPCs) on ipsilateral or contralateral with mastectomy side in patients with axillary lymph node dissection. METHODS: A total of 73 patients composed of ipsilateral (34 catheters) and contralateral (39 catheters) groups, with SPCs were included. All patients had lumpectomy or modified radical mastectomy for breast cancer. Ipsilateral and contralateral groups had similar patient characteristics...
June 2017: La Radiologia Medica
https://www.readbyqxmd.com/read/28195265/solid-papillary-carcinoma-of-the-nipple-an-in-situ-carcinoma-or-an-expansive-growth-tumor
#18
D Tacchini, L Vassallo, M A G M Butorano, V Mancini, T Megha
Papillary breast lesions are a heterogeneous group of tumors which mainly arise in the central mammary region, ranging from benign to malignant. Among them, solid papillary carcinoma (SPC) represents a very uncommon variant with indolent clinical behavior and excellent prognosis. The categorization of papillary lesions as benign, atypical or malignant is often difficult even for experienced pathologists. Furthermore, for prognostic purposes, to decide whether to consider a lesions as in situ when it is not associated with frank invasive foci of carcinoma may be problematic...
September 2016: Pathologica
https://www.readbyqxmd.com/read/28147539/tuning-flexibility-to-control-selectivity-in-soft-porous-crystals
#19
Nathan A Mahynski, Vincent K Shen
We use flat-histogram Monte Carlo simulations to study how changing the flexibility of soft porous crystals (SPCs) affects their selective adsorption of a binary, size-asymmetric supercritical fluid. Specifically, we consider mesoporous SPCs which have multiple minima in their free energy profiles as a function of pore size such that they are capable of exhibiting polymorphism between a narrow and large pore phase. While specific fluid-pore interactions determine the shape of both pores' selectivity curve as a function of adsorbate pressure, an individual pore tends to selectively adsorb a species based on the size of the adsorbate molecule relative to itself, thereby shifting the pore's selectivity curve relative to its polymorph...
January 28, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/28088030/efficacy-and-safety-of-linagliptin-metformin-single-pill-combination-as-initial-therapy-in-drug-na%C3%A3-ve-asian-patients-with-type-2-diabetes
#20
RANDOMIZED CONTROLLED TRIAL
Yiming Mu, Changyu Pan, Bei Fan, Uwe Hehnke, Xiuzhen Zhang, Xuejun Zhang, Xiaoyue Wang, Jingdong Liu, Ying Zhang, Jianling Du, Jianhua Ma, Yan Gong
AIM: To assess efficacy/safety of initial linagliptin/metformin single-pill combination (SPC) therapies versus individual drug components over 24weeks in treatment-naïve Asian patients with type 2 diabetes mellitus and insufficient glycemic control. METHODS: Patients (initial glycated hemoglobin [HbA1c] ⩾7.5% to <11.0% [58-97mmol/mol]; main group) were randomized to: linagliptin 5mg once daily (qd); metformin 500mg twice daily (bid); metformin 1000mg bid; linagliptin 2...
February 2017: Diabetes Research and Clinical Practice
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