36 research outputs found
Barriers to Healthy Eating Among the Senior Populations in Brookfield, CT
In the U.S, the cost of diseases associated with unhealthy eating reaches $157 billion a year. In the Western Connecticut area, hypertension and diabetes are the top two reasons for admitting seniors to the hospital. Both of them can be managed by healthy diet and exercise. This project aims to identify the barriers to eating healthy among elderly in Brookfield, CT, and to discuss potential interventions that can be implanted to address the identified barriers.https://scholarworks.uvm.edu/fmclerk/1188/thumbnail.jp
Facilitators and Barriers to Prescribing PreExposure Prophylaxis (PrEP) for the Prevention of HIV
Background:
What is PrEP and who gets it?
PrEP is the use of medication by individuals to prevent HIV contraction, approved in 2012 after demonstrating safety and efficacy in the iPrEx study and Partners PrEP2 trials.
HIV infection risk is 92% lower in patients using PrEP.
TruvadaÂź, a combination of tenofovir and emtricitabine taken orally daily, is the only approved PrEP regimen and is intended to compliment other prevention strategies such as condoms.
HIV negative-individuals at risk for exposure to HIV have been identified as men who have sex with men (MSM), IV drug users, heterosexuals who have unprotected sex with partners of unknown HIV status, and those in serodiscordant relationships.
Barriers to PrEP Implementation
PrEP is effective when patients adhere; however, both the medical community and some high-risk populations have been slow to adopt it as an HIV prevention strategy.
Surveys have shown clinicians perceived barriers to PrEP such as adverse side effects, viral drug resistance, increased high-risk behavior, cost, and training.
HIV in Vermont
New diagnoses of HIV among Vermont residents has remained relatively stable over the last twenty years.
Vermont CARES, a non-profit, offers free and anonymous HIV tests and in-person risk-reduction counseling. Clients are increasingly asking about PrEP as a prevention strategy, but the response from the medical community is difficult to ascertain.https://scholarworks.uvm.edu/comphp_gallery/1235/thumbnail.jp
Efficient organic solar cells enabled by simple non-fused electron donors with low synthetic complexity
Abstract Fusedâring electron donors boost the efficiency of organic solar cells (OSCs), but they suffer from high cost and low yield for their large synthetic complexity (SC > 30%). Herein, the authors develop a series of simple nonâfusedâring electron donors, PF1 and PF2, which alternately consist of furanâ3âcarboxylate and 2,2âČâbithiophene. Note that PF1 and PF2 present very small SC of 9.7% for their inexpensive raw materials, facile synthesis, and high synthetic yield. Compared to their allâthiopheneâbackbone counterpart PTâE, two new polymers feature larger conjugated plane, resulting in higher hole mobility for them, especially a value up to â10 â4 cm 2 V â1 ·s for PF2 with longer alkyl side chain. Meanwhile, PF1 and PF2 exhibit larger dielectric constant and deeper electronic energy level versus PTâE. Benefiting from the better physicochemical properties, the efficiencies of PF1â and PF2âbased devices are improved by â16.7% and â71.3% relative to that PTâEâbased devices, respectively. Furthermore, the optimized PF2âbased devices with introducing PC 71 BM as the third component deliver a higher efficiency of 12.40%. The work not only indicates that furanâ3âcarboxylate is a simple yet efficient building block for constructing nonâfusedâring polymers but also provides a promising electron donor PF2 for the lowâcost production of OSCs.A simple structure nonâfusedâring electron donor PF2 alternately consisting of furanâ3âcarboxylate and 2,2âČâbithiophene presents very small synthetic complexity of 9.7% as well as low material cost of â19.0 $ g â1 . More importantly, PF2 delivers a high efficiency of 12.4% coupled with strong operational stability. imag
Antifungal activity of nisin against clinical isolates of azole-resistant Candida tropicalis
The rapid emergence of invasive infections caused by azole-resistant Candida tropicalis has become a public health concern, and there is an urgent need for alternative treatment strategies. Studies have demonstrated the antibacterial effects of nisin, a well-known peptide naturally produced by Lactococcus lactis subsp. lactis. However, there is scant information about the antifungal effect of nisin against C. tropicalis. The present study aims to investigate the in vitro antifungal activity of nisin against clinical isolates of azole-resistant C. tropicalis strains, as well as its inhibitory effect on biofilm formation. A total of 35 C. tropicalis strains isolated from patients with invasive fungal infections were divided into the azole-resistant group and the azole-sensitive group, containing 21 and 14 strains, respectively. The relative expression levels of the ERG11 and UPC2 genes in the azole-resistant group were higher than those in the azole-sensitive group (pâ<â0.0001), while no significant differences were observed in the expression levels of the MDR1 and CDR1 genes. The minimum inhibitory concentration of nisin against C. tropicalis ranged from 2 to 8âÎŒg/mL. Nisin treatment inhibited the growth of azole-resistant C. tropicalis, with over a four-fold reduction in OD600 nm values observed at the 8-h time point, while it promoted the transition of C. tropicalis from the spore phase to the hyphal phase, as observed on cryo-scanning electron microscopy. The results of biofilm quantification using crystal violet staining indicated a significant decrease in OD570 nm values in the nisin-treated group compared to the controls (pâ<â0.0001). Among the 21 azole-resistant C. tropicalis strains, the biofilm formation was inhibited in 17 strains (17/21, 81%), and more than 85% inhibition of biofilm formation was observed in the representative strains. With regard to the molecular mechanisms, the expression of the BCR1 and UPC2 genes in the azole-resistant strains was down-regulated on nisin treatment (pâ<â0.05). In conclusion, we demonstrated, for the first time, that nisin has antifungal activity and significant anti-biofilm activity against clinical isolates of azole-resistant C. tropicalis strains. Based on the findings, nisin could be a promising alternative antifungal agent for combating azole-resistant C. tropicalis infections
Deciphering the metabolic perturbation in hepatic alveolar echinococcosis: a 1 H NMR-based metabolomics study
Background: Hepatic alveolar echinococcosis (HAE) is caused by the growth of Echinococcus multilocularis larvae in the liver. It is a chronic and potentially lethal parasitic disease. Early stage diagnosis for this disease is currently not available due to its long asymptomatic incubation period. In this study, a proton nuclear magnetic resonance (1H NMR)-based metabolomics approach was applied in conjunction with multivariate statistical analysis to investigate the altered metabolic profiles in blood serum and urine samples obtained from HAE patients. The aim of the study was to identify the metabolic signatures associated with HAE. Results: A total of 21 distinct metabolic differences between HAE patients and healthy individuals were identified, and they are associated with perturbations in amino acid metabolism, energy metabolism, glyoxylate and dicarboxylate metabolism. Furthermore, the present results showed that the Fischer ratio, which is the molar ratio of branched-chain amino acids to aromatic amino acids, was significantly lower (P < 0.001) in the blood serum obtained from the HAE patients than it was in the healthy patient group. Conclusions: The altered Fischer ratio, together with perturbations in metabolic pathways identified in the present study, may provide new insights into the mechanistic understanding of HAE pathogenesis and potential therapeutic interventions
Hostile attribution bias and angry rumination: A longitudinal study of undergraduate students.
Angry rumination and hostile attribution bias are important cognitive factors of aggression. Although prior theoretical models of aggression suggest that aggressive cognitive factors may influence each other, there are no studies examining the longitudinal relationship between angry rumination and hostile attribution bias. The present study used cross-lagged structural equation modeling to explore the longitudinal mutual relationship between hostile attribution bias and angry rumination; 941 undergraduate students (38.5% male) completed questionnaires assessing the variables at two time points. The results indicate that hostile attribution bias showed a small but statistically significant effect on angry rumination 6 months later, and angry rumination showed a quite small but marginally significant effect on hostile attribution bias across time. The present study supports the idea that hostile attribution bias influences angry rumination, and argue that the relationship between angry rumination and hostile attribution bias may be mutual. Additionally, the results suggest that there may be a causal relation of different aggression-related cognitive factors
Sustainability Evaluation and Optimization on the Modern Agro-Pastoral Circular System Integrating Emergy Analysis and Life Cycle Assessment
Developing modern circular agriculture is one of the important ways to promote agricultural sustainable development, facilitating the achievement of the Sustainable Development Goals adopted by the United Nations. However, when agricultural production operators constructed particular systems, they often lacked accurate data support and parameter matching. Consequently, problems such as unknown input and output, low circulation efficiency, and lack of comprehensive evaluation occurred, increasing challenges for efficient circulation of the systems. Therefore, based on sufficient data collection and field investigation, this research integrated emergy analysis and life cycle assessment to conduct sustainability evaluation on the modern Straw–Sheep–Cropland agro-pastoral circular system. Then the system was optimized by means of coupling parameter adjustment and key technology regulation. The results showed that the whole system required lower total emergy input after optimization. And the total weighted value of potential environmental impacts of the optimized system was 47.12% of that of the original system. Meanwhile, annual environmental service emergy in air, water, and soil was reduced significantly compared with the original one. In general, the optimized system had good performance in reduction, reuse, and controllability, so its sustainability was also high. This research formed a systematic method suitable for evaluating and optimizing the modern agro-pastoral circular system, which provided accurate guidance for the scientific construction and sustainable development of circular agriculture systems
Exploration of Deregulated Long Non-Coding RNAs in Association with Hepatocarcinogenesis and Survival
Long non-coding RNAs (lncRNAs) are larger than 200 nucleotides in length and pervasively expressed across the genome. An increasing number of studies indicate that lncRNA transcripts play integral regulatory roles in cellular growth, division, differentiation and apoptosis. Deregulated lncRNAs have been observed in a variety of human cancers, including hepatocellular carcinoma (HCC). We determined the expression profiles of 90 lncRNAs for 65 paired HCC tumor and adjacent non-tumor tissues, and 55 lncRNAs were expressed in over 90% of samples. Eight lncRNAs were significantly down-regulated in HCC tumor compared to non-tumor tissues (p < 0.05), but no lncRNA achieved statistical significance after Bonferroni correction for multiple comparisons. Within tumor tissues, carrying more aberrant lncRNAs (6â7) was associated with a borderline significant reduction Cancers 2015, 7 1848 in survival (HR = 8.5, 95% CI: 1.0â72.5). The predictive accuracy depicted by the AUC was 0.93 for HCC survival when using seven deregulated lncRNAs (likelihood ratio test p = 0.001), which was similar to that combining the seven lncRNAs with tumor size and treatment (AUC = 0.96, sensitivity = 87%, specificity = 87%). These data suggest the potential association of deregulated lncRNAs with hepatocarcinogenesis and HCC survival
Assessment and comparison of nutritional qualities of thirty quinoa (Chenopodium quinoa Willd.) seed varieties
Quinoa (Chenopodium quinoa Willd.) is an ancient crop with perfect nutritional composition and antioxidants substances. However, the current research on the nutritional quality of quinoa is limited to a small number of varieties or a single origin. In this study, we aimed at providing a detailed evaluation of abundant nutrients of quinoa seeds from thirty varieties with different color in different origins, including soluble protein, soluble sugar, amino acid, vitamin, fatty acid and saponin. Results showed that there were significant differences in the contents of Îł-aminobutyric acid (6.67â78.67Â mg/100Â g DW) and vitamin C (11.675â105.135Â mg/100Â g DW) in quinoa seeds. Here, we scored thirty quinoa seeds using a weighted average score system first time and identified four varieties, black quinoa JQ-00145, red quinoa JQ-00125 and two white quinoa JQ-00005/JQ-00077, with superior nutritional quality and oxidation resistance. The results of this study will provide theoretical guidance for consumption of quinoa