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Investigations of choice

Heather J Ruskin
High-throughput microarray technologies have long been a source of data for a wide range of biomedical investigations. Over the decades, variants have been developed and sophistication of measurements has improved, with generated data providing both valuable insight and considerable analytical challenge. The cost-effectiveness of microarrays, as well as their fundamental applicability, made them a first choice for much early genomic research and efforts to improve accessibility, quality and interpretation have continued unabated...
October 21, 2016: Microarrays
Jalie A Tucker, JeeWon Cheong, Susan D Chandler, Brice H Lambert, Brittney Pietrzak, Heather Kwok, Susan L Davies
BACKGROUND: As interventions have expanded beyond clinical treatment to include brief interventions for persons with less severe alcohol problems, predicting who can achieve stable moderation drinking has gained importance. Recent behavioral economic (BE) research on natural recovery has shown that active problem drinkers who allocate their monetary expenditures on alcohol and saving for the future over longer time horizons tend to have better subsequent recovery outcomes, including maintenance of stable moderation drinking...
October 24, 2016: Alcoholism, Clinical and Experimental Research
Zhao-Qing Du, Li-Na Zhang, Qiang Lu, Yi-Fan Ren, Yi Lv, Xue-Min Liu, Xu-Feng Zhang
The standard therapeutic protocols of pyogenic liver abscess (PLA) have not been well established yet. We investigated the clinical characteristics, disease progression, choices of treatments and outcomes of PLA with different size. 410 cases of patients with PLA were enrolled retrospectively from 2000 to 2014, and were grouped as small abscess (≤5 cm, n = 125), large abscess (5 cm to 10 cm, n = 218) and giant abscess (>10 cm, n = 36). The most common bacteria were Klebsiella pneumonia (22%) and Escherichia coli (11%) by pus culture, and Escherichia coli (36...
October 24, 2016: Scientific Reports
L A Louwé, A M Stiggelbout, A Overbeek, C G J M Hilders, M H van den Berg, E Wendel, E van Dulmen-den Broeder, M M Ter Kuile
Current practices in counselling of female cancer patients with respect to fertility issues need considerable improvement, particularly given the general underuse of fertility preservation options and the negative impact that infertility can have on quality of life. We investigated the relationship between physicians' and physician-related factors and the frequency of physicians discussing fertility issues and referring to a reproductive specialist. We invited 1,832 physicians in the Netherlands who had treated at least five reproductive-age female cancer patients within the past year to complete a questionnaire...
October 24, 2016: European Journal of Cancer Care
R L Openshaw, D M Thomson, J M Penninger, J A Pratt, B J Morris
RATIONALE: Members of the c-Jun N-terminal kinase (JNK) family of mitogen-activated protein (MAP) kinases, and the upstream kinase MKK7, have all been strongly linked with synaptic plasticity and with the development of the neocortex. However, the impact of disruption of this pathway on cognitive function is unclear. OBJECTIVE: In the current study, we test the hypothesis that reduced MKK7 expression is sufficient to cause cognitive impairment. METHODS: Attentional function in mice haploinsufficient for Map2k7 (Map2k7 (+/-) mice) was investigated using the five-choice serial reaction time task (5-CSRTT)...
October 24, 2016: Psychopharmacology
Marine Soulié, Chantal Carayon, Nathalie Saffon, Sylvie Blanc, Suzanne Fery-Forgues
The arrangement of an ionic fluorophore in the crystalline state was regulated by the presence of various counter-ions and the effect on spectroscopic and self-association properties was studied. To do so, nine salts of berberine (i.e. a fluorescent natural alkaloid) were investigated. Most of them contained organic anions and were prepared using an ion-exchange process. Berberine chloride and hemisulfate were also used for the sake of comparison. The diffuse reflectance and photoluminescence spectra were recorded on powder compounds...
October 24, 2016: Physical Chemistry Chemical Physics: PCCP
Marco Siccardi, Phillip Martin, Darren Smith, Paul Curley, Tom McDonald, Marco Giardiello, Neill Liptrott, Steve Rannard, Andrew Owen
Solid drug nanoparticles (SDNs) are a nanotechnology with favourable characteristics to enhance drug delivery and improve the treatment of several diseases, showing benefit for improved oral bioavailability and injectable long-acting medicines. The physicochemical properties and composition of nanoformulations can influence the absorption, distribution, and elimination of nanoparticles; consequently, the development of nanoparticles for drug delivery should consider the potential role of nanoparticle characteristics in the definition of pharmacokinetics...
September 2016: J Interdiscip Nanomed
Chung-Hsiang Liu, Chang-Hai Tsai, Tsai-Chung Li, Yu-Wan Yang, Wei-Shih Huang, Ming-Kui Lu, Chun-Hung Tseng, Hui-Chun Huang, Kuan-Fei Chen, Thih-Shan Hsu, Yi-Ting Hsu, Chon-Haw Tsai, Ching-Liang Hsieh
BACKGROUND AND PURPOSE: Astragalus membranaceus (AM) is the first-choice herb for fatigue treatment in traditional Chinese medicine and the main herb used for stroke treatment in China and Taiwan. The purpose of this study was to evaluate the effect of AM on poststroke fatigue (PSF). MATERIALS AND METHODS: This study was designed as a double-blind, randomized, controlled preliminary study. Sixty-four patients with PSF were assigned to treatment group (TG; 31 patients), which received oral administration of AM (2...
October 20, 2016: Journal of Ethnopharmacology
Qing Wang, Donglan Zhang, Zhiyuan Hou
The private health care sector has become an increasingly important complement to China's health care system. During the health care reform in 2009, China's central government established multiple initiatives to relax constraints on the growth of the private health care sector. However, private health services have not been growing as rapidly as private health care facilities. Using data from the China Health and Retirement Longitudinal Study collected between 2011 and 2013, this study investigated patient choice between private and public providers for outpatient care and estimated its relationship with health insurance and socioeconomic status (SES)...
October 18, 2016: Social Science & Medicine
Gustav Hellström, Martina Heynen, Jost Borcherding, Carin Magnhagen
Many fish spend a large part of their life in groups. The size of the group influences potential costs and benefits of group living, and depending on context a fish may prefer different group sizes. Group-size preference may also depend on personality, with social individuals expected to prefer larger groups than asocial fish. This study investigates context-dependent group size preference in two populations of a highly social fish, young of the year Eurasian perch. The perch were given a choice between a group of two and a group of eight conspecifics under three different situations: the small group was feeding, the small group had access to shelter, and a control treatment with no extra stimuli...
October 19, 2016: Behavioural Processes
Hannah May Brown, Nienke de Vlieger, Clare Collins, Tamara Bucher
Issue addressed: Portion size guidance strategies have been suggested as an important component of weight management; therefore, the Health Star Rating (HSR) front-of-pack labels could influence consumers' portion-size decisions. However, this has not been investigated to date. This study aims to evaluate whether presenting energy content information and HSRs influences portion size self-selection of specific foods and meals.Methods: Adults were randomly assigned to one of three experimental groups in this randomised controlled experiment...
October 20, 2016: Health Promotion Journal of Australia
Vasanthanathan Poongavanam, Jacob Kongsted
The high rate of drug resistance as well as the complex biochemical process of the parasite reproduction cycle makes development of new drugs for malaria a very important but challenging task. Falcipain 2 (FL2) and Falcipain 3 (FL3) are the major cysteine protease enzymes that play a central role in providing essential amino acids for the parasite's protein biosynthesis through the hemoglobin hydrolysis process. Selective inhibition of these enzymes is considered as a promising chemotherapeutic target. In the present investigation, the highly efficient linear interaction energy (LIE) method has been parameterized for binding affinity predictions and assessed with a set of 244 compounds for FL2 and FL3 inhibition...
June 26, 2016: Journal of Molecular Graphics & Modelling
Fausto Castagnetti, Francesco Di Raimondo, Antonio De Vivo, Antonio Spitaleri, Gabriele Gugliotta, Francesco Fabbiano, Isabella Capodanno, Donato Mannina, Marzia Salvucci, Agostino Antolino, Roberto Marasca, Maurizio Musso, Monica Crugnola, Stefana Impera, Elena Trabacchi, Caterina Musolino, Francesco Cavazzini, Giuseppe Mineo, Patrizia Tosi, Carmela Tomaselli, Michele Rizzo, Sergio Siragusa, Miriam Fogli, Riccardo Ragionieri, Alessandro Zironi, Simona Soverini, Giovanni Martinelli, Michele Cavo, Paolo Vigneri, Fabio Stagno, Gianantonio Rosti, Michele Baccarani
Chronic myeloid leukemia (CML) treatment is based on company-sponsored and academic trials testing different tyrosine kinase inhibitors (TKIs) as first-line therapy. These studies included patients selected according to many inclusion-exclusion criteria, particularly age and comorbidities, with specific treatment obligations. In daily clinical practice (real-life), inclusion-exclusion criteria do not exist and the treatment outcome does not only depend on the choice of first-line TKI, but also on second- and third-line TKIs...
October 22, 2016: American Journal of Hematology
Daniel Shane Wright, Nicolle Demandt, Jeroen T Alkema, Ole Seehausen, Ton G G Groothuis, Martine E Maan
Local adaptation can be a potent force in speciation, with environmental heterogeneity leading to niche specialization and population divergence. However, local adaption often requires non-random mating in order to generate reproductive isolation. Population divergence in sensory properties can be particularly consequential in speciation, affecting both ecological adaptation and sexual communication. Pundamilia pundamila and Pundamilia nyererei are two closely related African cichlid species that differ in male coloration, blue vs...
October 22, 2016: Journal of Evolutionary Biology
Slava Ilnytskyy, Andriy Bilichak
Next-generation sequencing became a method of choice for the investigation of small RNA transcriptomes in plants and animals. Although a technical side of sequencing itself is becoming routine, and experimental costs are affordable, data analysis still remains a challenge, especially for researchers with limited computational experience. Here, we present a detailed description of a computational workflow designed to take raw sequencing reads as input, to obtain small RNA predictions, and to detect the differentially expressed microRNAs as a result...
2017: Methods in Molecular Biology
Phillip J Summers, Isabelle A Struve, Michael S Wilkes, Vaughan W Rees
BACKGROUND: Injection-site vein loss and skin abscesses impose significant morbidity on people who inject drugs (PWID). The two common forms of street heroin available in the USA include black tar and powder heroin. Little research has investigated these different forms of heroin and their potential implications for health outcomes. METHODS: A multiple-choice survey was administered to a sample of 145 participants seeking services at reduction facilities in both Sacramento, CA and greater Boston, MA, USA...
October 18, 2016: International Journal on Drug Policy
Katherine Bubric, Alan Hedge
BACKGROUND: Laptop computers have surpassed desktop computers in popularity, especially among college student users. The portability of these devices raises concerns regarding healthy usage patterns in different settings and there is a need to investigate the postures with which these devices are being used and associated reports of musculoskeletal discomfort. OBJECTIVE: This study investigated the configurations in which laptops are used and the prevalence of musculoskeletal discomfort associated with laptop use in a survey of college students...
October 17, 2016: Work: a Journal of Prevention, Assessment, and Rehabilitation
Vikrant Rai, Poonam Sharma, Swati Agrawal, Devendra K Agrawal
Heart disease causing cardiac cell death due to ischemia-reperfusion injury is a major cause of morbidity and mortality in the United States. Coronary heart disease and cardiomyopathies are the major cause for congestive heart failure, and thrombosis of the coronary arteries is the most common cause of myocardial infarction. Cardiac injury is followed by post-injury cardiac remodeling or fibrosis. Cardiac fibrosis is characterized by net accumulation of extracellular matrix proteins in the cardiac interstitium and results in both systolic and diastolic dysfunctions...
October 20, 2016: Molecular and Cellular Biochemistry
Qiang Fu, Huijun Shi, Chuangfu Chen
MicroRNAs (miRNAs) are an important class of small, non-coding RNAs that control target genes expression by degradation of target mRNAs or by inhibiting protein translation in many biological processes and cellular pathways. In a previous study, we found that miR-29b interfered with bovine viral diarrhea virus (BVDV) replication. However, the mechanisms of regulation of miR-29b expression are not well known. DNA methylation is an important epigenetic mechanism for silencing gene transcription, and plays an important role in promoter choice, protein expression, and regulation of miRNAs expression...
October 20, 2016: Archives of Virology
Silvia Mangiacavalli, A Pompa, V Ferretti, C Klersy, F Cocito, M Varettoni, C S Cartia, M Cazzola, A Corso
Extramedullary relapse (EMR) represents a poor prognostic marker in the course of multiple myeloma (MM). We reviewed data from 329 patients, diagnosed between 2000 and 2010, without extramedullary disease at onset to explore possible risk factors for EMR. The median overall survival of our study cohort was 6.4 years. The risk of EMR was 28 % with a median time from diagnosis to first EMR of 2.2 years (0.2-9.1 years). Patients with soft tissue masses located in extra-osseous organs (EMR-S) showed the worst outcome, compared to those with tumor masses arising from adjacent bone (EMR-B) (median OS 1...
October 21, 2016: Annals of Hematology
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