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https://www.readbyqxmd.com/read/28227326/detection-of-binaural-interaction-in-free-field-evoked-auditory-brainstem-responses-by-time-scale-representations
#1
Erik Schebsdat, Horst Hessel, Harald Seidler, Daniel J Strauss, Erik Schebsdat, Horst Hessel, Harald Seidler, Daniel J Strauss, Horst Hessel, Erik Schebsdat, Harald Seidler, Daniel J Strauss
The so called β-wave of the binaural interaction component (BIC) in auditory brainstem responses (ABR) has been shown to be an objective measure for binaural interaction (BI). This component is the arithmetical difference between the sum of the monaurally evoked ABRs and the binaurally evoked ABR. Unfortunately, these neural responses are known to be very fragile and as a result the calculated BIC. An additional issue is, that the findings of this measurement are predominantly needed in people with hearing loss who may use hearing devices like hearing aids (HA) or cochlear implants (CI), thus they are not able to use headphones (like in conventional ABR measurements) during the detection of possible BI...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28225770/a-distal-intergenic-region-controls-pancreatic-endocrine-differentiation-by-acting-as-a-transcriptional-enhancer-and-as-a-polycomb-response-element
#2
Joris van Arensbergen, Sebastien Dussaud, Corinne Pardanaud-Glavieux, Javier García-Hurtado, Claire Sauty, Aline Guerci, Jorge Ferrer, Philippe Ravassard
Lineage-selective expression of developmental genes is dependent on the interplay between activating and repressive mechanisms. Gene activation is dependent on cell-specific transcription factors that recognize transcriptional enhancer sequences. Gene repression often depends on the recruitment of Polycomb group (PcG) proteins, although the sequences that underlie the recruitment of PcG proteins, also known as Polycomb response elements (PREs), remain poorly understood in vertebrates. While distal PREs have been identified in mammals, a role for positive-acting enhancers in PcG-mediated repression has not been described...
2017: PloS One
https://www.readbyqxmd.com/read/28225745/predictors-of-nonhospitalization-and-functional-response-in-clozapine-treatment-a-nationwide-population-based-cohort-study
#3
Ole Köhler-Forsberg, Henriette T Horsdal, Sophie E Legge, James H MacCabe, Christiane Gasse
BACKGROUND: Clozapine remains the only evidence-based treatment for treatment-resistant schizophrenia, and prediction of clozapine response is important in developing stratified treatment. We studied potential predictors of clozapine response, applying functional assessments as well as service use. PROCEDURES: We performed a nationwide cohort study among all individuals diagnosed with schizophrenia in Denmark after 1995 (age, ≥18 years) who initiated clozapine treatment between 2004 and 2011 with a Global Assessment of Functioning (GAF-F) score registered at clozapine initiation...
April 2017: Journal of Clinical Psychopharmacology
https://www.readbyqxmd.com/read/28225627/1-2-3-triazolium-based-peptoid-oligomers
#4
Hafida Aliouat, Cécile Caumes, Olivier Roy, Mohamed Zouikri, Claude Taillefumier, Sophie Faure
The cis-directing effect of the 1,2,3-triazolium-type side chain was studied on dimeric peptoid models with various patterns: αα, αβ, βα and ββ. Low influences of the sequence and of the solvent were observed, the cis conformation of the amide carrying the triazolium ranging from 83 to 94% in proportion. The synthesis of peptoid homooligomers with four or eight pendant 1,2,3-triazolium side chains is described. α-, β- and α,β-peptoids carrying propargyl groups were subjected to CuAAC reaction using alkyl azides, and the resulting triazoles were quaternized providing well-defined multitriazolium platforms...
February 22, 2017: Journal of Organic Chemistry
https://www.readbyqxmd.com/read/28225484/association-between-erbb4-single-nucleotide-polymorphisms-and-susceptibility-to-schizophrenia-a-meta-analysis-of-case-control-studies
#5
Yanguo Feng, Dejun Cheng, Chaofeng Zhang, Yuchun Li, Zhiying Zhang, Juan Wang, Xiao Feng
BACKGROUND: Accumulating studies have reported inconsistent association between ErbB4 single nucleotide polymorphisms (SNPs) and predisposition to schizophrenia. To better interpret this issue, here we conducted a meta-analysis using published case-control studies. METHODS: We conducted a systematic search of MEDLINE (Pubmed), Embase (Ovid), Web of Science (Thomson-Reuters) to identify relevant references. The association between ErbB4 SNPs and schizophrenia was assessed by odds ratios (ORs) and 95% confidence intervals (CIs)...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28225184/bis-picolinamide-ruthenium-iii-dihalide-complexes-dichloride-to-diiodide-exchange-generates-single-trans-isomers-with-high-potency-and-cancer-cell-selectivity
#6
Aida M Basri, Rianne M Lord, Simon J Allison, Andrea Rodríguez-Bárzano, Stephanie J Lucas, Felix D Janeway, Helena J Shepherd, Christopher M Pask, Roger M Phillips, Patrick Columba McGowan
A library of new bis-picolinamide ruthenium(III) dihalide complexes of the type RuX2L2 (X = Cl or I and L = picolinamide) have been synthesized and characterized. They exhibit different picolinamide ligand binding modes, whereby one ligand is bound (N,N) and the other bound (N,O). Structural studies reveal a mixture of cis and trans isomers for the RuCl2L2 complexes but upon a halide exchange reaction to RuI2L2, only single trans isomers are present. High cytotoxic activity against human cancer cell lines was observed, with potencies for some complexes similar to or better than cisplatin...
February 22, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28225001/phosphodiesterase-4d-polymorphisms-associate-with-the-short-term-outcome-in-ischemic-stroke
#7
Yan-Li Song, Chun-Juan Wang, Yi-Ping Wu, Jie Lin, Peng-Lian Wang, Wan-Liang Du, Li Liu, Jin-Xi Lin, Yi-Long Wang, Yong-Jun Wang, Gai-Fen Liu
It has been demonstrated that phosphodiesterase 4D (PDE4D) genetic polymorphism is associated with ischemic stroke. However, the association between PDE4D gene and prognosis after ischemic stroke remains unknown. We consecutively enrolled ischemic stroke patients admitted to Beijing Tiantan Hospital from October 2009 to December 2013. Clinical, laboratory and imaging data upon admission were collected. All patients were followed up 3 months after stroke onset. Odds ratios (ORs) and 95% confidence intervals (CIs) were calculated to assess the associations of genetic polymorphisms with 3-month outcome after ischemic stroke and different subtypes, under various genetic models...
February 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28224762/stereoisomerization-of-cyclic-silanols
#8
Hisayuki Endo, Nobuhiro Takeda, Masafumi Unno
Stereoisomerization of readily available all-cis-1,3,5,7-tetrahydroxy-1,3,5,7-tetraisobutylcyclotetrasiloxane (1a) was carried out in acidic condition to afford cis-trans-cis (1b), all-trans (1c), and cis-cis-trans (1d) isomers. Reaction mixture could be easily separated into 1a and a mixture of 1b, 1c, and 1d by the treatment with chloroform. Mixture of 1b, 1c, and 1d were further isolated and each structure was identified. The experimental results indicated that the most of plausible mechanism is substitution reaction of silicon center via pentacoordinate intermediate without cyclic siloxane bond cleavage reaction...
February 22, 2017: Chemistry, An Asian Journal
https://www.readbyqxmd.com/read/28224495/hidden-markov-models-in-bioinformatics-snv-inference-from-next-generation-sequence
#9
Jiawen Bian, Xiaobo Zhou
The rapid development of next generation sequencing (NGS) technology provides a novel avenue for genomic exploration and research. Hidden Markov models (HMMs) have wide applications in pattern recognition as well as Bioinformatics such as transcription factor binding sites and cis-regulatory modules detection. An application of HMM is introduced in this chapter with the in-deep developing of NGS. Single nucleotide variants (SNVs) inferred from NGS are expected to reveal gene mutations in cancer. However, NGS has lower sequence coverage and poor SNV detection capability in the regulatory regions of the genome...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28224412/antihypertensive-medication-use-and-risk-of-renal-cell-carcinoma
#10
Joanne S Colt, Jonathan N Hofmann, Kendra Schwartz, Wong-Ho Chow, Barry I Graubard, Faith Davis, Julie Ruterbusch, Sonja Berndt, Mark P Purdue
PURPOSE: Use of antihypertensive medications has been associated with renal cell carcinoma (RCC), but it is unclear whether specific types of medications increase RCC risk independent of the effect of hypertension, or whether the association varies by histologic subtype. To address this question, we analyzed data from a U.S. population-based case-control study of RCC. METHODS: We collected information on participants' use of drugs to treat hypertension, heart problems, weight control, and swelling...
February 21, 2017: Cancer Causes & Control: CCC
https://www.readbyqxmd.com/read/28223997/melatonin-regulates-root-architecture-by-modulating-auxin-response-in-rice
#11
Chengzhen Liang, Aifu Li, Hua Yu, Wenzhen Li, Chengzhi Liang, Sandui Guo, Rui Zhang, Chengcai Chu
It has been suggested that melatonin acts as an important regulator in controlling root growth and development, but the underlying molecular mechanism driving this relationship remains undetermined. In this study, we demonstrated that melatonin acts as a potent molecule to govern root architecture in rice. Treatments with melatonin significantly inhibited embryonic root growth, and promoted lateral root formation and development. Genome-wide expression profiling by RNA-sequencing revealed auxin-related genes were significantly activated under melatonin treatment...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28223951/speechreading-in-deaf-adults-with-cochlear-implants-evidence-for-perceptual-compensation
#12
Hannah Pimperton, Amelia Ralph-Lewis, Mairéad MacSweeney
Previous research has provided evidence for a speechreading advantage in congenitally deaf adults compared to hearing adults. A 'perceptual compensation' account of this finding proposes that prolonged early onset deafness leads to a greater reliance on visual, as opposed to auditory, information when perceiving speech which in turn results in superior visual speech perception skills in deaf adults. In the current study we tested whether previous demonstrations of a speechreading advantage for profoundly congenitally deaf adults with hearing aids, or no amplificiation, were also apparent in adults with the same deafness profile but who have experienced greater access to the auditory elements of speech via a cochlear implant (CI)...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28223944/il-1%C3%AE-induced-downregulation-of-the-multifunctional-pdz-adaptor-pdzk1-is-attenuated-by-erk-inhibition-rxr%C3%AE-or-ppar%C3%AE-stimulation-in-enterocytes
#13
Min Luo, Sunil Yeruva, Yongjian Liu, Giriprakash Chodisetti, Brigitte Riederer, Manoj B Menon, Keisuke Tachibana, Takefumi Doi, Ursula E Seidler
Background: The PDZ adaptor protein PDZK1 modulates the membrane expression and function of a variety of intestinal receptors and ion/nutrient transporters. Its expression is strongly decreased in inflamed intestinal mucosa of mice and IBD patients. Aim and Methods: We investigated whether the inflammation-associated PDZK1 downregulation is a direct consequence of proinflammatory cytokine release by treating intestinal Caco-2BBE cells with TNF-α, IFN-γ, and IL-1β, and analysing PDZK1 promotor activity, mRNA and protein expression...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28223933/increased-consumption-of-fruit-and-vegetables-is-related-to-a-reduced-risk-of-cognitive-impairment-and-dementia-meta-analysis
#14
Xian Jiang, Jiang Huang, Daqiang Song, Ru Deng, Jicheng Wei, Zhuo Zhang
Background: Increased consumption of fruit and vegetables has been shown to be associated with a reduced risk of cognitive impairment and dementia in many epidemiological studies. The purpose of this study was to assess the strength of this association in a meta-analysis. Methods: We identified relevant studies by searching Medline, Embase, and Cochrane Library electronic databases (from 1970 to January 2016). Study were included if they reported relative risks and corresponding 95% confidence intervals (CIs) of cognitive impairment and dementia with respect to frequency of fruit and vegetable intake...
2017: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/28223916/the-emerging-roles-of-early-protein-folding-events-in-the-secretory-pathway-in-the-development-of-neurodegenerative-maladies
#15
REVIEW
Tatyana Dubnikov, Ehud Cohen
Although, protein aggregation and deposition are unifying features of various neurodegenerative disorders, recent studies indicate that different mechanisms can lead to the development of the same malady. Among these, failure in early protein folding and maturation emerge as key mechanistic events that lead to the manifestation of a myriad of illnesses including Alzheimer's disease and prion disorders. Here we delineate the cascade of maturation steps that nascent polypeptides undergo in the secretory pathway to become functional proteins, and the chaperones that supervise and assist this process, focusing on the subgroup of proline cis/trans isomerases...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28223828/preoperative-albumin-to-globulin-ratio-and-prognostic-nutrition-index-predict-prognosis-for-glioblastoma
#16
Wen-Zhe Xu, Feng Li, Zhen-Kuan Xu, Xuan Chen, Bin Sun, Jing-Wei Cao, Yu-Guang Liu
OBJECTIVE: Impaired immunonutritional status has disadvantageous effects on outcomes for cancer patients. Preoperative albumin-to-globulin ratio (AGR) and the prognostic nutrition index (PNI) have been used as prognostic factors in various cancers. We aimed to evaluate the clinical significance of the AGR and PNI in glioblastoma. MATERIALS AND METHODS: This retrospective analysis involved 166 patients. Demographic, clinical, and laboratory data were collected. AGR and the PNI were calculated as AGR = albumin/(total serum protein - albumin) and PNI = albumin (g/L) + 5 × total lymphocyte count (10(9)/L)...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28222775/modification-of-the-association-between-recreational-physical-activity-and-survival-after-breast-cancer-by-promoter-methylation-in-breast-cancer-related-genes
#17
Lauren E McCullough, Jia Chen, Yoon Hee Cho, Nikhil K Khankari, Patrick T Bradshaw, Alexandra J White, Susan L Teitelbaum, Mary Beth Terry, Alfred I Neugut, Hanina Hibshoosh, Regina M Santella, Marilie D Gammon
BACKGROUND: Mechanisms underlying the inverse association between physical activity and survival after breast cancer are unresolved, but DNA methylation may play a role. We hypothesized that promoter methylation of breast cancer-related genes, as well as global methylation, may modify the association between prediagnostic recreational physical activity (RPA) and breast cancer mortality. METHODS: Using a population-based sample of 1254 women diagnosed with first primary breast cancer, we examined modification of the RPA-mortality association by gene-specific promoter methylation and global methylation...
February 21, 2017: Breast Cancer Research: BCR
https://www.readbyqxmd.com/read/28222484/overweight-obese-underweight-and-frequency-of-sugar-consumption-as-risk-indicators-for-early-childhood-caries-in-brazilian-preschool-children
#18
Cecilia Claudia Costa Ribeiro, Mariana Carvalho Batista da Silva, Ana Margarida Melo Nunes, Erika Bárbara de Abreu Fonseca Thomaz, Cadidja Dayane Sousa Carmo, Marizélia Rodrigues Costa Ribeiro, Antônio Augusto Moura da Silva
BACKGROUND: A possible association between being overweight or obese and early childhood caries (ECC) remains controversial. AIM: To investigated this association in a developing country testing the confounding effects of socioeconomic factors and frequency of sugar consumption. METHODS: Historical cohort study, 388 children (aged 24-71 months) living in São Luís, Brazil. A theoretical model adjusted according to income, birthweight, and nutritional status at twelve months and frequency of sugar consumption was generated with directed acyclic graphs to analyze this association...
February 21, 2017: International Journal of Paediatric Dentistry
https://www.readbyqxmd.com/read/28222261/enhanced-release-of-molecules-upon-uv-light-irradiation-from-photoresponsive-hydrogels-prepared-from-bifunctional-azobenzene-and-four-arm-poly-ethylene-glycol
#19
Shiva Kumar Rastogi, Hailee E Anderson, Joseph Lamas, Scott L Barrett, Travis Cantu, Stefan Zauscher, William J Brittain, Tania Betancourt
Advances in biosensors and drug delivery depend on hydrogels that respond to external stimuli. In this work we de-scribe the preparation and characterization of photoresponsive hydrogels prepared by crosslinking of di-NHS ester of azobenzoic acid and four-armed, amine-terminated poly(ethylene glycol). The porous structure and composition of the hydrogels were confirmed by scanning electron microscopy and Fourier transform infrared (FTIR) spectroscopy. The reversible photoisomerization of the azobenzene-containing hydrogel crosslinkers in the gels was confirmed by ab-sorption spectroscopy...
February 21, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28222257/an-iron-ii-ylide-complex-as-a-masked-open-shell-iron-alkylidene-species-in-its-alkylidene-transfer-reactions-with-alkenes
#20
Jian Liu, Lianrui Hu, Lei Wang, Hui Chen, Liang Deng
Transition-metal alkylidenes are important reactive organometallic intermediates, and our current knowledge on them has been mainly restricted to those with closed-shell electronic configurations. In this study, we present the exploration on open-shell iron alkylidenes with a weak-field tripodal amido-phosphine-amido ligand. We found that a high-spin (amido-phosphine-amido)iron(II) complex can react with (p-tolyl)2CN2 to afford a high-spin (amido-ylide-amido)iron(II) complex, 2, which could transfer its alkylidene moiety to a variety of alkenes, either the electron-rich or electron-deficient ones, to form cyclopropane derivatives...
February 21, 2017: Journal of the American Chemical Society
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