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https://www.readbyqxmd.com/read/28810391/predictors-of-diet-failure-a-multifactorial-cognitive-and-behavioural-model
#1
Kiera Buchanan, Jeanie Sheffield, Wee Hong Tan
Obesity is recognised as a multidetermined issue. However, research aimed at addressing diet failure has typically examined factors in isolation. Furthermore, previous research has included limited input from dieters themselves. A qualitative study identified a number of themes contributing to diet failure. This study aimed to test these themes with a larger sample ( n = 426) while also determining their fit within a multifactorial model. The results of this study supported the conceptualisation of diet failure using a multifactorial model while also illustrating correlational pathways to be more complex than currently understood in the literature...
January 1, 2017: Journal of Health Psychology
https://www.readbyqxmd.com/read/28805849/topology-of-polymer-chains-under-nanoscale-confinement
#2
Vahid Satarifard, Maziar Heidari, Samaneh Mashaghi, Sander J Tans, Mohammad Reza Ejtehadi, Alireza Mashaghi
Spatial confinement limits the conformational space accessible to biomolecules but the implications for bimolecular topology are not yet known. Folded linear biopolymers can be seen as molecular circuits formed by intramolecular contacts. The pairwise arrangement of intra-chain contacts can be categorized as parallel, series or cross, and has been identified as a topological property. Using molecular dynamics simulations, we determine the contact order distributions and topological circuits of short semi-flexible linear and ring polymer chains with a persistence length of lp under a spherical confinement of radius Rc...
August 14, 2017: Nanoscale
https://www.readbyqxmd.com/read/28797480/can-acclimation-of-thermal-tolerance-in-adults-and-across-generations-act-as-a-buffer-against-climate-change-in-tropical-marine-ectotherms
#3
S A Morley, K D Nguyen, L S Peck, C-H Lai, K S Tan
Thermal acclimation capacity was investigated in adults of three tropical marine invertebrates, the subtidal barnacle Striatobalanus amaryllis, the intertidal gastropod Volegalea cochlidium and the intertidal barnacle Amphibalanus amphitrite. To test the relative importance of transgenerational acclimation, the developmental acclimation capacity of A. amphitrite was investigated in F1 and F2 generations reared at a subset of the same incubation temperatures. The increase in CTmax (measured through loss of key behavioural metrics) of F0 adults across the incubation temperature range 25...
August 2017: Journal of Thermal Biology
https://www.readbyqxmd.com/read/28782378/-it-s-bit-of-an-eye-opener-a-qualitative-study-of-women-s-attitudes-towards-tanning-sun-protection-and-a-facial-morphing-intervention
#4
Sofia Persson, Sarah Grogan, Katie Dhingra, Yael Benn
OBJECTIVE: Skin cancer is to a large degree behaviourally preventable, meaning that evidence-based interventions have scope to make a difference. Previous research indicates that appearance-based interventions such as facial morphing may be more effective than health-based interventions, and that it can personalise the issue of skin cancer. METHOD: This study examined attitudes to UV exposure, as well as reactions to a facial morphing intervention, through interviews with 25 women aged 35 years and older...
August 7, 2017: Psychology & Health
https://www.readbyqxmd.com/read/28773918/synthesis-and-characterization-of-types-a-and-b-gelatin-methacryloyl-for-bioink-applications
#5
Bae Hoon Lee, Nathaniel Lum, Li Yuan Seow, Pei Qi Lim, Lay Poh Tan
Gelatin methacryloyl (GelMA) has been increasingly considered as an important bioink material due to its tailorable mechanical properties, good biocompatibility, and ability to be photopolymerized in situ as well as printability. GelMA can be classified into two types: type A GelMA (a product from acid treatment) and type B GelMA (a product from alkali treatment). In current literature, there is little research on the comparison of type A GelMA and type B GelMA in terms of synthesis, rheological properties, and printability for bioink applications...
September 24, 2016: Materials
https://www.readbyqxmd.com/read/28769008/ketamine-alleviates-depressive-like-behaviors-via-down-regulating-inflammatory-cytokines-induced-by-chronic-restraint-stress-in-mice
#6
Sijie Tan, Yan Wang, Ke Chen, Zhifeng Long, Ju Zou
The purpose of the present study was to investigate whether ketamine's rapid antidepressant effects were associated with its anti-inflammatory actions and to explore the underlying molecular mechanism. Depressive-like behaviors was induced in mice using chronic restraint stress (CRS) method. Anti-depressive effects of ketamine were evaluated by forced swimming tests (FST) and sucrose preference test (SPT). Subsequently, brain tissue was harvested to investigate inflammatory response in the hippocampus via investigating reactive microglia numbers, serum cytokines levels and the toll-like receptor type 4 (TLR4)/p38 mitogen-activated protein kinase (MAPK) pathway...
2017: Biological & Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/28739131/ibudilast-reduces-oxaliplatin-induced-tactile-allodynia-and-cognitive-impairments-in-rats
#7
Ian N Johnston, Manuela Tan, Jacob Cao, Antigone Matsos, Daniel R L Forrest, Emily Si, Joanna E Fardell, Mark R Hutchinson
Chemotherapy can cause serious neurotoxic side effects, such as painful peripheral neuropathies and disabling cognitive impairments. Four experiments examined whether Ibudilast, a clinically approved neuroimmune therapy, would reduce tactile allodynia and memory impairments caused by oxaliplatin in laboratory rats. Rats received an intraperitoneal injection of oxaliplatin (6mg/kg i.p.) or vehicle and were assessed for tactile allodynia 3 or 5days after injection, memory impairments in the novel object and novel location recognition tests 10-12days after injection, and fear conditioning 14days after injection...
July 21, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28716746/controlled-release-and-anti-proliferative-effect-of-imatinib-mesylate-loaded-sporopollenin-microcapsules-extracted-from-pollens-of-betula-pendula
#8
Idris Sargin, Lalehan Akyuz, Murat Kaya, Gamze Tan, Talip Ceter, Kevser Yildirim, Seymanur Ertosun, Gozde Hatun Aydin, Muge Topal
Sporopollenin is a promising material for drug encapsulation due to its excellent properties; uniformity in size, non-toxicity, chemically and thermally resilient nature. Herein, morphologically intact sporopollenin microcapsules were extracted from Betula pendula pollens. Cancer therapeutic agent (imatinib mesylate) was loaded into the microcapsules. The encapsulation efficiency by passive loading technique was found to be 21.46%. Release behaviour of the drug from microcapsules was found to be biphasic, with an initial fast release followed by a slower rate of release...
July 14, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28703883/associations-between-cardiovascular-disease-and-its-risk-factors-with-hearing-loss-a-cross-sectional-analysis
#9
Hsern Ern Ivan Tan, Nick Si Rui Lan, Matthew William Knuiman, Mark Laurence Divitini, De Wet Swanepoel, Michael Hunter, Christopher Gerard Brennan-Jones, Joseph Hung, Robert Henry Eikelboom, Peter Luke Santa Maria
OBJECTIVES: To investigate the relationship between hearing loss and cardiovascular disease risk factors. DESIGN: Cross-sectional study. METHODS: Participants were recruited between May 2010 and December 2015 and answered a health and risk factor questionnaire. Physical and biochemical assessments were performed. SETTING: A community based population. PARTICIPANTS: 5,107 participants born within the years 1946-1964 enrolled in the Busselton Healthy Ageing Study...
July 13, 2017: Clinical Otolaryngology
https://www.readbyqxmd.com/read/28698082/mechanisms-of-facial-emotion-recognition-in-autism-spectrum-disorders-insights-from-eye-tracking-and-electroencephalography
#10
REVIEW
Melissa H Black, Nigel T M Chen, Kartik K Iyer, Ottmar V Lipp, Sven Bölte, Marita Falkmer, Tele Tan, Sonya Girdler
While behavioural difficulties in facial emotion recognition (FER) have been observed in individuals with Autism Spectrum Disorder (ASD), behavioural studies alone are not suited to elucidate the specific nature of FER challenges in ASD. Eye tracking (ET) and electroencephalography (EEG) provide insights in to the attentional and neurological correlates of performance, and may therefore provide insight in to the mechanisms underpinning FER in ASD. Given that these processes develop over the course of the developmental trajectory, there is a need to synthesise findings in regard to the developmental stages to determine how the maturation of these systems may impact FER in ASD...
July 8, 2017: Neuroscience and Biobehavioral Reviews
https://www.readbyqxmd.com/read/28691513/use-of-social-networking-sites-and-associations-with-skin-tone-dissatisfaction-sun-exposure-and-sun-protection-in-a-sample-of-australian-adolescents
#11
John Mingoia, Amanda D Hutchinson, David H Gleaves, Nadia Corsini, Carlene Wilson
OBJECTIVE: Previous research has indicated that greater exposure to traditional media (i.e. television, film, and print) predicted skin cancer risk factors in adolescents; however, the relationship between social media usage and these outcomes remains unexplored. We examined whether social networking site (SNS) usage, and the particular manner of this use, was associated with skin tone dissatisfaction, sun exposure and sun protection among Australian adolescents. We also explored sex differences in SNS usage related to tanning...
July 10, 2017: Psychology & Health
https://www.readbyqxmd.com/read/28688916/venom-proteome-of-the-yellow-lipped-sea-krait-laticauda-colubrina-from-bali-insights-into-subvenomic-diversity-venom-antigenicity-and-cross-neutralization-by-antivenom
#12
Choo Hock Tan, Kin Ying Wong, Kae Yi Tan, Nget Hong Tan
The venom proteome of Laticauda colubrina (Bali, Indonesia) was elucidated by nano-ESI-LCMS/MS of the venom reverse-phase HPLC fractions. Altogether 31 distinct forms of proteins were identified and clustered into three toxin families: three-finger toxin (3FTX, 66.12% of total venom proteins), phospholipase A2 (PLA2, 33.26%) and cysteine-rich secretory protein (CRiSP, 0.05%). The 3FTX were α-neurotoxins (five long neurotoxins, LNTX, 48.87%; two short neurotoxins, SNTX, 16.94%) and a trace amount of two cytotoxins (CTX, 0...
July 5, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/28677695/a-mechano-responsive-supramolecular-metal-organic-framework-supramof-gel-material-rich-in-zif-8-nanoplates
#13
Abhijeet K Chaudhari, Jin-Chong Tan
We report an unconventional ZIF-8 based supramolecular MOF (supraMOF) material, which is straightforwardly synthesised by leveraging the high concentration reaction (HCR) approach. Akin to traditional low-molecular-weight gels (LMWG), we show that mechano-stimulus responsive behaviour can be achieved through a reversible and fast sol-gel conversion mechanism. Remarkably, the supraMOF gel consists of 2D nanoplates of ZIF-8 with a reduced crystal symmetry.
July 27, 2017: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/28643415/cultivation-of-human-dermal-fibroblasts-and-epidermal-keratinocytes-on-keratin-coated-silica-bead-substrates
#14
Bee Yi Tan, Luong T H Nguyen, Hyo-Sop Kim, Jae-Ho Kim, Kee Woei Ng
Human hair keratin is promising as a bioactive material platform for various biomedical applications. To explore its versatility further, human hair keratin was coated onto monolayers of silica beads to produce film-like substrates. This combination was hypothesized to provide a synergistic effect in improving the biochemical properties of the resultant composite. Atomic Force Microscopy analysis showed uniform coatings of keratin on the silica beads with a slight increase in the resulting surface roughness...
June 23, 2017: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/28629006/a-colon-targeted-drug-delivery-system-based-on-alginate-modificated-graphene-oxide-for-colorectal-liver-metastasis
#15
Bin Zhang, Yayuan Yan, Qiujuan Shen, Dong Ma, Langhuan Huang, Xiang Cai, Shaozao Tan
A major problem associated with colon cancer is liver metastasis. A colon-targeted drug delivery system is one way to address this problem after the resection of colorectal cancer. However, traditional drug delivery systems face many challenges, such as an inability to control the release rate, inaccurate targeting, susceptibility to the microenvironment and poor stability. Here, we report the development of a graphene oxide (GO)-based, sodium alginate (ALG) functionalized colon-targeting drug delivery system, that is loaded with 5-fluorouracil (5-FU) as the anti-cancer drug (denoted as GO-ALG/5-FU)...
October 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28559062/inhibitory-effect-of-angiotensin-1-7-on-angiotensin-iii-induced-nociceptive-behaviour-in-mice
#16
Wataru Nemoto, Ryota Yamagata, Yoshiki Ogata, Osamu Nakagawasai, Takeshi Tadano, Koichi Tan-No
We have previously demonstrated that the intrathecal (i.t.) administration of angiotensin (Ang) II into mice produces a nociceptive behaviour consisting of scratching, biting and licking accompanied by the phosphorylation of p38 MAPK in the spinal cord, which was mediated through AT1 receptors. Both the p38 MAPK phosphorylation and subsequent nociceptive behaviour were attenuated by the i.t. co-administration of Ang (1-7), an N-terminal fragment of Ang II, that acted via Mas receptors. On the other hand, a C-terminal fragment of Ang II, namely Ang III, was also shown to induce a nociceptive behaviour by acting upon AT1 receptors on spinal astrocytes and neurons, and was found to be more potent than Ang II...
May 23, 2017: Neuropeptides
https://www.readbyqxmd.com/read/28558427/a-data-driven-approach-for-the-study-of-coagulation-phenomena-in-waste-lubricant-oils-and-its-relevance-in-alkaline-regeneration-treatments
#17
C T Pinheiro, V R Ascensão, M S Reis, M J Quina, L M Gando-Ferreira
Coagulation phenomena can occur in certain types of waste lubricant oils (WLO) during regeneration processes involving alkaline treatments, causing plant shutdowns. In this context, this study addresses the nature of the compounds responsible for the coagulation phenomena after the alkaline treatment. For such, an empirical test was developed to assess the coagulation behaviour of WLO, consisting in the addition of KOH to the WLO followed by heating under stirring conditions. This test was performed on 133 samples and four coagulation classes were identified: A; B1; B2 and C...
December 1, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28550530/rtms-ameliorates-ptsd-symptoms-in-rats-by-enhancing-glutamate-transmission-and-synaptic-plasticity-in-the-acc-via-the-pten-akt-signalling-pathway
#18
Gaohua Liu, Dayun Feng, Jian Wang, Haifeng Zhang, Zhengwu Peng, Min Cai, Jing Yang, Ruiguo Zhang, Huaning Wang, Shengxi Wu, Qingrong Tan
Repetitive transcranial magnetic stimulation (rTMS) is a novel physiological therapy that has been adopted to clinically treat psychiatric disorders. Our previous study indicated the potential therapeutic effect of rTMS on posttraumatic stress disorder (PTSD). However, the exact molecular mechanism is elusive. Currently, using the single prolonged stress (SPS) rat model for PTSD, we investigated the glutamatergic transmission and neural plasticity changes in the anterior cingulate cortex (ACC) after SPS induction and explored the protective effects and mechanism of rTMS treatment...
May 26, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28540394/clinical-efficacy-of-a-two-year-oral-health-programme-for-infants-and-toddlers-in-singapore
#19
Bien Lai, Wee Kiat Tan, Qing Shu Lu
INTRODUCTION: Dental caries, which is prevalent in Singapore preschoolers, is a disease that has a major impact on children's health and places a high cost on the society and health services. Oral health programmes for young children implemented in several parts of the world have been shown to be effective in the prevention of dental caries. We aimed to examine the clinical efficacy of an oral health programme for infants and toddlers in Singapore. METHODS: 90 children and their caregivers participated in the programme while 64 children who were 24 months older than the intervention group at initial visit were recruited as controls in a quasi-experimental study design...
May 25, 2017: Singapore Medical Journal
https://www.readbyqxmd.com/read/28527374/talking-about-sunbed-tanning-social-representations-and-identity-work
#20
Jennifer Taylor, Michael Murray, Alexandra Lamont
RATIONALE: Despite the publicised health risks associated with its usage, sunbed tanning remains popular in many Western countries. Previous research indicates that knowledge of the harmful effects does not necessarily lead to a reduction in sunbed use. OBJECTIVE: The aim of this study was to develop a more extensive social psychological understanding of sunbed use, in the United Kingdom, by exploring the social representations of sunbed tanning held by both those who use and who have never used sunbeds...
May 9, 2017: Social Science & Medicine
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