The impact of nutrition on academic achievement

The recent increase of obesity and malnourishment among students has prompted many researchers to question the effects of such lifestyles on the students\u27 health and academic areas. Many factors are to be associated with the lack of knowledge and initiative to make amendments within the system. In addition, many steps can be taken to implement the correct changes. This paper outlines the causes of malnutrition, the affects of poor nutrients, the vitality of specific nutrient, and ways to help the problems cease. Attention to the strong research and statistics, leads to transformation of the traditions and barriers of individuals choosing unhealthy lifestyles to see the benefits a healthy diet and exercise has on the academic success of students

Transcriptome analysis of the hypothalamus and pituitary of turkey hens with low and high egg production

High egg producing hens (HEPH) show increased hypothalamic and pituitary gene expression related to hypothalamo-pituitary-gonadal (HPG) axis stimulation as well as increased in vitro responsiveness to gonadotropin releasing hormone (GnRH) stimulation in the pituitary when compared to low egg producing hens (LEPH). Transcriptome analysis was performed on hypothalamus and pituitary samples from LEPH and HEPH to identify novel regulators of HPG axis function. In the hypothalamus and pituitary, 4644 differentially expressed genes (DEGs) were identified between LEPH and HEPH, with 2021 genes up-regulated in LEPH and 2623 genes up-regulated in HEPH. In LEPH, up-regulated genes showed enrichment of the hypothalamo-pituitary-thyroid (HPT) axis. Beta-estradiol was identified as an upstream regulator regardless of tissue. When LEPH and HEPH samples were compared, beta-estradiol was activated in HEPH in 3 of the 4 comparisons, which correlated to the number of beta-estradiol target genes up-regulated in HEPH. In in vitro pituitary cell cultures from LEPH and HEPH, thyroid hormone pretreatment negatively impacted gonadotropin subunit mRNA levels in cells from both LEPH and HEPH, with the effect being more prominent in HEPH cells. Additionally, the effect of estradiol pretreatment on gonadotropin subunit mRNA levels in HEPH cells was negative, whereas estradiol pretreatment increased gonadotropin subunit mRNA levels in LEPH cells. Up-regulation of the HPT axis in LEPH and upstream beta-estradiol activation in HEPH may play a role in regulating HPG axis function, and ultimately ovulation rates. Thyroid hormone and estradiol pretreatment impacted gonadotropin mRNA levels following GnRH stimulation, with the inhibitory effects of thyroid hormone more detrimental in HEPH and estradiol stimulatory effects more prominent in LEPH. Responsiveness to thyroid hormone and estradiol may be due to desensitization to thyroid hormone and estradiol in LEPH and HEPH, respectively, due to up-regulation of the HPT axis in LEPH and of the HPG axis in HEPH. Further studies will be necessary to identify possible target gene desensitization mechanisms and elicit the regulatory role of the HPT axis and beta-estradiol on ovulation rates in turkey hens.https://doi.org/10.1186/s12864-020-07075-

Multi-Substituted Quinolines as HIV-1 Integrase Allosteric Inhibitors

Allosteric HIV-1 integrase (IN) inhibitors, or ALLINIs, are a new class of antiviral agents that bind at the dimer interface of the IN, away from the enzymatic catalytic site and block viral replication by triggering an aberrant multimerization of the viral enzyme. To further our understanding of the important binding features of multi-substituted quinoline-based ALLINIs, we have examined the IN multimerization and antiviral properties of substitution patterns at the 6 or 8 position. We found that the binding properties of these ALLINIs are negatively impacted by the presence of bulky substitutions at these positions. In addition, we have observed that the addition of bromine at either the 6 (6-bromo) or 8 (8-bromo) position conferred better antiviral properties. Finally, we found a significant loss of potency with the 6-bromo when tested with the ALLINI-resistant IN A128T mutant virus, while the 8-bromo analog retained full effectiveness

Meeting Students Where They Are: Educating Students with Varying Life Experiences About the Health Care Needs of Persons with Disabilities

Purpose: Medical students enter preclinical years with varying levels of experience with individuals with disabilities. Previous experience has been shown to have a significant impact on attitudes toward this population and, hence, has the potential to impact patient care (Tervo et. al, 2002). This study examined the impact of a one-day Interclerkship on students’ self-reports regarding specific components of their attitudes, by level and type of previous disability experience. Methodology: Students met with individuals with physical or cognitive disabilities and their families in small groups to discuss their health care needs and experiences. Students also viewed a short film regarding effective methods of communication with and modifications to the clinical encounter for individuals with physical disabilities. Afternoon workshops covered a wide array of topics including assistive technology, sexuality/childbirth, mental health, community resources and bladder management. Students reported levels of experience cognitive/physical: friends, relatives, schoolmates k-12 and college. 153 (77%) students over two years completed pre-and post-Interclerkship self-assessments that rated attitudes about medical care for patients with disabilities, using a 14-item 5-point Likert scale; means were compared by paired t-test. Students also provided course feedback. Results: There was a highly significant (pConclusions: A single-day Interclerkship improved the attitudes of students’ reporting all levels and types of disability experience

Meeting Challenges in Caring for Patients with Disabilities: An Interclerkship Course

Purpose: People with disabilities use healthcare services more than those without disabilities, yet healthcare systems often fail these individuals. Understanding the needs of those with physical and cognitive disabilities is crucial in providing them with appropriate healthcare. A one-day Interclerkship introduced third-year medical students to key challenges for physicians who care for disabled patients: (1) building trust and confidence, (2) communication, (3) anticipating secondary medical conditions, (4) appropriately modifying clinical encounters, and (5) identifying appropriate community resources. Methodology: Essential elements of patient-centered care for disabled individuals were presented in plenary sessions. In small groups, students met with individuals with physical or development disabilities, their families and their community advocates, discussing healthcare and access concerns. Other workshops, taught by clinical and community experts, addressed assistive technology, parenting challenges, mental health, community resources, sexuality, and end-of-life care. Sixty-seven (69%) students completed pre-and post-Interclerkship self-assessments that rated knowledge, skills, and attitudes about medical care for disabled patients, using a 14-item 5-point Likert scale; means were compared by paired t-test. Students also provided course feedback. Results: There was a highly significant (p80% of the students agreed or strongly agreed that the Interclerkship addressed a topic essential to physician training, providing knowledge and skills not obtained elsewhere. Conclusions: A single-day Interclerkship successfully improved third year medical students self-assessed knowledge, attitudes and skills on providing appropriate medical care for disabled patient. Presented at the AAMC (Association of American Colleges) Annual Meeting, RIME (Research in Medical Education) Program, November 2006

Genetic dissection of the phosphoinositide cycle in Drosophila photoreceptors.

Phototransduction in Drosophila is mediated by phospholipase C-dependent hydrolysis of PIP2-, and is an important model for phosphoinositide signalling. Although generally assumed to operate by generic machinery conserved from yeast to mammals, some key elements of the phosphoinositide cycle have yet to be identified in Drosophila photoreceptors. Here, we used transgenic flies expressing fluorescently tagged probes (P4M and TbR332H), which allow in vivo quantitative measurements of PI4P and PIP2 dynamics in photoreceptors of intact living flies. Using mutants and RNA interference for candidate genes potentially involved in phosphoinositide turnover, we identified Drosophila PI4KIIIα (CG10260) as the PI4-kinase responsible for PI4P synthesis in the photoreceptor membrane. Our results also indicate that PI4KIIIα activity requires rbo (the Drosophila orthologue of Efr3) and CG8325 (orthologue of YPP1), both of which are implicated as scaffolding proteins necessary for PI4KIIIα activity in yeast and mammals. However, our evidence indicates that the recently reported central role of dPIP5K59B (CG3682) in PIP2 synthesis in the rhabdomeres should be re-evaluated; although PIP2 resynthesis was suppressed by RNAi directed against dPIP5K59B, little or no defect was detected in a reportedly null mutant (dPIP5K18 )

Mapping Firn Saturation Over Greenland Using NASA's Soil Moisture Active Passive Satellite

Mapping the spatial extent of recently identified englacial hydrological features (i.e., ice slabs and perennial firn aquifers) formed by meters-thick water-saturated firn layers over the percolation facies of the Greenland Ice Sheet using L -band microwave radiometry has recently been demonstrated. However, these initial maps are binary, and do not provide a parameter to estimate the spatial variability in the thickness and volumetric fraction of meltwater stored within the firn pore space. Here, we exploit enhanced-resolution vertical-polarization L -band brightness temperature ( $T_{V}^{B}$ ) imagery (2015&ndash;2019) generated using observations collected over Greenland by NASA&rsquo;s Soil Moisture Active Passive (SMAP) satellite and a simple two-layer L -band brightness temperature model. We map water-saturated firn layers via a &ldquo;firn saturation&rdquo; parameter, and interpret our results together with ice slab and perennial firn aquifer spatial extents, estimates of snow accumulation simulated via the Regional Atmospheric Climate Model (RACMOp2.3), and airborne radar surveys collected via NASA&rsquo;s Operation IceBridge (OIB) campaigns. We find that variable firn saturation parameter values are mapped in lower snow accumulation ice slab areas in western, northern, and northeastern Greenland, where firn is colder and water-saturated firn layers seasonally refreeze as solid-ice. Higher firn saturation parameter values are mapped in higher snow accumulation perennial firn aquifer areas in southeastern, southern, and northwestern Greenland, where firn is near the melting point, and meters-thick water-saturated firn layers exist. Our results have implications for identifying expansive englacial reservoirs that store significant volumes of meltwater in locations that are vulnerable to meltwater-induced hydrofracturing and accelerated outlet glacier flow year-round.View less &nbsp;</p

Social Network Evolution during Long-term Migration: A comparison of three case studies in the South Wales region

Ten years after Poland joined the European Union (EU), a sizable number of the once considered short-term migrants that entered the United Kingdom (UK) post-2004 have remained. From the literature, it is known that when initially migrating, social networks, composed of family and friends, are used to facilitate migration. Later, migrants’ social networks may evolve to include local, non-ethnic members of the community. Through these networks, migrants may access new opportunities within the local economy. They also serve to socialise newcomers in the cultural modalities of life in the destination country. However, what if migrants’ social networks do not evolve or evolve in a limited manner? Is cultural integration still possible under these conditions? Using data collected from three case studies in the South Wales region –Cardiff, Merthyr Tydfil & Llanelli- from 2008-2012, the aim of this article is to compare Polish migrants’ social network usage, or lack thereof, over time. This comparison will be used to understand how these social networks can be catalysts and barriers for cultural integration. The findings point to the migrants’ varied use of their local social networks, which is dependent upon their language skill acquisition and their labour market mobility in the destination country

Ketogenic diet as a glycine lowering therapy in nonketotic hyperglycinemia and impact on brain glycine levels

BACKGROUND: Nonketotic hyperglycinemia (NKH) is a severe neurometabolic disorder characterized by increased glycine levels. Current glycine reduction therapy uses high doses of sodium benzoate. The ketogenic diet (KD) may represent an alternative method of glycine reduction. AIM: We aimed to assess clinical and biochemical effects of two glycine reduction strategies: high dose benzoate versus KD with low dose benzoate. METHODS: Six infants with NKH were first treated with high dose benzoate therapy to achieve target plasma glycine levels, and then switched to KD with low dose benzoate. They were evaluated as clinically indicated by physical examination, electroencephalogram, plasma and cerebral spinal fluid amino acid levels. Brain glycine levels were monitored by magnetic resonance spectroscopy (MRS). RESULTS: Average plasma glycine levels were significantly lower with KD compared to benzoate monotherapy by on average 28%. Two infants underwent comparative assessments of brain glycine levels via serial MRS. A 30% reduction of brain glycine levels was observed in the basal ganglia and a 50% reduction in the white matter, which remained elevated above normal, and was equivalent between the KD and high dose benzoate therapies. CSF analysis obtained while participants remained on the KD showed a decrease in glycine, serine and threonine levels, reflecting their gluconeogenetic usage. Clinically, half the patients had seizure reduction on KD, otherwise the clinical impact was variable. CONCLUSION: KD is an effective glycine reduction method in NKH, and may provide a more consistent reduction in plasma glycine levels than high-dose benzoate therapy. Both high-dose benzoate therapy and KD equally reduced but did not normalize brain glycine levels even in the setting of low-normal plasma glycine