82 research outputs found

    Womanhood Initiation

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    Womanhood Initiation is a poem I wrote during Maria Gillan\u27s Advanced Poetry Workshop. Professor Gillan is a Professor of English at Binghamton University, and her workshop is unique in that it takes place during three long weekend sessions throughout the semester. This specific poem was inspired by one of Professor Gillan’s writing prompts: “I do not feel like a man/woman yet.” I tend to explore gender in my poetry, specifically girlhood and womanhood. Young women and girls, often put down in United States culture for their vanity and selfishness, are complex, intelligent people and have more to say that should be valued. In this poem, I explore feelings of discomfort in the transition from girlhood to womanhood. Experiences like menstruation and using makeup are supposed to signify womanhood, yet the girls and women I know still express uncertainty in their legitimacy as women. In this poem, I reach the conclusion that this confusion is part of being a woman, and our clumsy initiations into womanhood are ongoing

    Mikro-RNS-expresszio vizsgalata adenoid cysticus emlo- es nyalmirigy-carcinomakban

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    Adenoid cystic carcinoma is a salivary gland-derived malignant tumor, but rarely it can originate from the breast, too. The salivary gland-derived form shows a very aggressive clinical outcome, while adenoid cystic carcinoma of the breast has mostly a very good prognosis. Aim: The aim of the authors was to compare the miRNA-expression profile of breast- and salivary gland-derived cases. Method: The miRNA-profiles of two salivary gland derived and two breast-derived adenoid cystic carcinoma tissues as well as one normal breast and one salivary gland tissues were analysed using the Affymetrix(R) Gene Chip. Results: The expression of some miRNAs differed in the tumor tissues compared to their controls: the let-7b was overexpressed in salivary gland-derived adenoid cystic carcinoma, while decreased in breast-derived adenoid cystic carcinoma. In addition, the miR-24 was decreased in salivary gland-derived but overexpressed in breast-derived adenoid cystic carcinomas. The miR-181a-2* was only detected in salivary gland-derived adenoid cystic carcinomas. Conclusions: Through post-transcriptional regulation of the genes, the diverse expression of some miRNAs may partially explain the diverse clinical outcome of salivary gland-derived and breast-derived adenoid cystic carcinomas. Orv. Hetil., 2013, 154, 963-968. | Az adenoid cysticus carcinoma a nyĂĄlmirigyeket Ă©rintƑ rosszindulatĂș daganat, ritkĂĄn azonban az emlƑ mirigyeibƑl is kiindulhat. A nyĂĄlmirigybƑl kiindulĂł forma nagyon agresszĂ­v kimenetelt mutat, az emlƑmirigy adenoid cysticus tumora azonban ĂĄltalĂĄban igen kedvezƑ prognĂłzissal bĂ­r. CĂ©lkitƱzĂ©s: A szerzƑk cĂ©lul tƱztĂ©k ki az emlƑmirigybƑl Ă©s nyĂĄlmirigybƑl kiindulĂł adenoid cysticus carcinoma esetek miRNS-mintĂĄzatĂĄnak összehasonlĂ­tĂĄsĂĄt. MĂłdszer: KĂ©t-kĂ©t, emlƑbƑl Ă©s nyĂĄlmirigybƑl szĂĄrmazĂł adenoid cysticus carcinoma Ă©s egy-egy normĂĄlis emlƑ- Ă©s nyĂĄlmirigyszövetet vizsgĂĄltak. A miRNS-profi lt AffymetrixÂź Gene Chip segĂ­tsĂ©gĂ©vel hatĂĄroztĂĄk meg. EredmĂ©nyek: Egyes miRNS-ek expressziĂłja emlƑ- Ă©s nyĂĄlmirigy-eredetƱ tumorokban eltĂ©rt a normĂĄlis kontrolljukhoz kĂ©pest: a let-7b expressziĂłja a nyĂĄlmirigy-eredetƱ tumorokban fokozott, mĂ­g emlƑmirigybƑl szĂĄrmazĂł adenoid cysticus carcinoma szövetekben csökkent volt, a miR-24 expressziĂłja pedig ezzel ellentĂ©tesen vĂĄltozott: emlƑeredetƱ adenoid cysticus carcinoma szövetekben emelkedĂ©st mutatott, mĂ­g a nyĂĄlmirigy tumoraiban csökkent mĂ©rtĂ©kben expresszĂĄlĂłdott. A miR-181a-2* kizĂĄrĂłlag a nyĂĄlmirigy-eredetƱ adenoid cysticus carcinoma esetekben volt detek tĂĄlhatĂł. KövetkeztetĂ©sek: A gĂ©nek poszttranszkripcionĂĄlis szabĂĄlyozĂĄsa rĂ©vĂ©n egyes miRNS-ek eltĂ©rƑ expressziĂłja rĂ©szleges magyarĂĄzatot adhat a kĂ©t szerv adenoid cysticus tumorainak eltĂ©rƑ klinikai lefolyĂĄsĂĄra

    Common Genetic Variants of the Human Steroid 21-Hydroxylase Gene (CYP21A2) Are Related to Differences in Circulating Hormone Levels

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    This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.Hungarian Scientific Research Fund (OTKA, PD100648 (AP)) Technology Innovation Fund, National Developmental Agency (KTIA-AIK-2012-12-1-0010). AP is the recipient of a “LendĂŒlet” grant from the Hungarian Academy of Sciences

    Multivariate Analysis of Dopaminergic Gene Variants as Risk Factors of Heroin Dependence

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    BACKGROUND: Heroin dependence is a debilitating psychiatric disorder with complex inheritance. Since the dopaminergic system has a key role in rewarding mechanism of the brain, which is directly or indirectly targeted by most drugs of abuse, we focus on the effects and interactions among dopaminergic gene variants. OBJECTIVE: To study the potential association between allelic variants of dopamine D2 receptor (DRD2), ANKK1 (ankyrin repeat and kinase domain containing 1), dopamine D4 receptor (DRD4), catechol-O-methyl transferase (COMT) and dopamine transporter (SLC6A3) genes and heroin dependence in Hungarian patients. METHODS: 303 heroin dependent subjects and 555 healthy controls were genotyped for 7 single nucleotide polymorphisms (SNPs) rs4680 of the COMT gene; rs1079597 and rs1800498 of the DRD2 gene; rs1800497 of the ANKK1 gene; rs1800955, rs936462 and rs747302 of the DRD4 gene. Four variable number of tandem repeats (VNTRs) were also genotyped: 120 bp duplication and 48 bp VNTR in exon 3 of DRD4 and 40 bp VNTR and intron 8 VNTR of SLC6A3. We also perform a multivariate analysis of associations using Bayesian networks in Bayesian multilevel analysis (BN-BMLA). FINDINGS AND CONCLUSIONS: In single marker analysis the TaqIA (rs1800497) and TaqIB (rs1079597) variants were associated with heroin dependence. Moreover, -521 C/T SNP (rs1800955) of the DRD4 gene showed nominal association with a possible protective effect of the C allele. After applying the Bonferroni correction TaqIB was still significant suggesting that the minor (A) allele of the TaqIB SNP is a risk component in the genetic background of heroin dependence. The findings of the additional multiple marker analysis are consistent with the results of the single marker analysis, but this method was able to reveal an indirect effect of a promoter polymorphism (rs936462) of the DRD4 gene and this effect is mediated through the -521 C/T (rs1800955) polymorphism in the promoter

    Association between Age and the 7 Repeat Allele of the Dopamine D4 Receptor Gene

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    Longevity is in part (25%) inherited, and genetic studies aim to uncover allelic variants that play an important role in prolonging life span. Results to date confirm only a few gene variants associated with longevity, while others show inconsistent results. However, GWAS studies concentrate on single nucleotide polymorphisms, and there are only a handful of studies investigating variable number of tandem repeat variations related to longevity. Recently, Grady and colleagues (2013) reported a remarkable (66%) accumulation of those carrying the 7 repeat allele of the dopamine D4 receptor gene in a large population of 90-109 years old Californian centenarians, as compared to an ancestry-matched young population. In the present study we demonstrate the same association using continuous age groups in an 18-97 years old Caucasian sample (N = 1801, p = 0.007). We found a continuous pattern of increase from 18-75, however frequency of allele 7 carriers decreased in our oldest age groups. Possible role of gene-environment interaction effects driven by historical events are discussed. In accordance with previous findings, we observed association preferentially in females (p = 0.003). Our results underlie the importance of investigating non-disease related genetic variants as inherited components of longevity, and confirm, that the 7-repeat allele of the dopamine D4 receptor gene is a longevity enabling genetic factor, accumulating in the elderly female population

    How does the tobacco industry attempt to influence marketing regulations? A systematic review

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    BACKGROUND: The Framework Convention on Tobacco Control makes a number of recommendations aimed at restricting the marketing of tobacco products. Tobacco industry political activity has been identified as an obstacle to Parties' development and implementation of these provisions. This study systematically reviews the existing literature on tobacco industry efforts to influence marketing regulations and develops taxonomies of 1) industry strategies and tactics and 2) industry frames and arguments. METHODS: Searches were conducted between April-July 2011, and updated in March 2013. Articles were included if they made reference to tobacco industry efforts to influence marketing regulations; supported claims with verifiable evidence; were written in English; and concerned the period 1990-2013. 48 articles met the review criteria. Narrative synthesis was used to combine the evidence. RESULTS: 56% of articles focused on activity in North America, Europe or Australasia, the rest focusing on Asia (17%), South America, Africa or transnational activity. Six main political strategies and four main frames were identified. The tobacco industry frequently claims that the proposed policy will have negative unintended consequences, that there are legal barriers to regulation, and that the regulation is unnecessary because, for example, industry does not market to youth or adheres to a voluntary code. The industry primarily conveys these arguments through direct and indirect lobbying, the promotion of voluntary codes and alternative policies, and the formation of alliances with other industrial sectors. The majority of tactics and arguments were used in multiple jurisdictions. CONCLUSIONS: Tobacco industry political activity is far more diverse than suggested by existing taxonomies of corporate political activity. Tactics and arguments are repeated across jurisdictions, suggesting that the taxonomies of industry tactics and arguments developed in this paper are generalisable to multiple jurisdictions and can be used to predict industry activity

    The Policy Dystopia Model:an interpretive analysis of tobacco industry political activity

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    BACKGROUND: Tobacco industry interference has been identified as the greatest obstacle to the implementation of evidence-based measures to reduce tobacco use. Understanding and addressing industry interference in public health policy-making is therefore crucial. Existing conceptualisations of corporate political activity (CPA) are embedded in a business perspective and do not attend to CPA's social and public health costs; most have not drawn on the unique resource represented by internal tobacco industry documents. Building on this literature, including systematic reviews, we develop a critically informed conceptual model of tobacco industry political activity. METHODS AND FINDINGS: We thematically analysed published papers included in two systematic reviews examining tobacco industry influence on taxation and marketing of tobacco; we included 45 of 46 papers in the former category and 20 of 48 papers in the latter (n = 65). We used a grounded theory approach to build taxonomies of "discursive" (argument-based) and "instrumental" (action-based) industry strategies and from these devised the Policy Dystopia Model, which shows that the industry, working through different constituencies, constructs a metanarrative to argue that proposed policies will lead to a dysfunctional future of policy failure and widely dispersed adverse social and economic consequences. Simultaneously, it uses diverse, interlocking insider and outsider instrumental strategies to disseminate this narrative and enhance its persuasiveness in order to secure its preferred policy outcomes. Limitations are that many papers were historical (some dating back to the 1970s) and focused on high-income regions. CONCLUSIONS: The model provides an evidence-based, accessible way of understanding diverse corporate political strategies. It should enable public health actors and officials to preempt these strategies and develop realistic assessments of the industry's claims

    Both Positive and Negative Selection Pressures Contribute to the Polymorphism Pattern of the Duplicated Human CYP21A2 Gene.

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    The human steroid 21-hydroxylase gene (CYP21A2) participates in cortisol and aldosterone biosynthesis, and resides together with its paralogous (duplicated) pseudogene in a multiallelic copy number variation (CNV), called RCCX CNV. Concerted evolution caused by non-allelic gene conversion has been described in great ape CYP21 genes, and the same conversion activity is responsible for a serious genetic disorder of CYP21A2, congenital adrenal hyperplasia (CAH). In the current study, 33 CYP21A2 haplotype variants encoding 6 protein variants were determined from a European population. CYP21A2 was shown to be one of the most diverse human genes (HHe=0.949), but the diversity of intron 2 was greater still. Contrary to previous findings, the evolution of intron 2 did not follow concerted evolution, although the remaining part of the gene did. Fixed sites (different fixed alleles of sites in human CYP21 paralogues) significantly accumulated in intron 2, indicating that the excess of fixed sites was connected to the lack of effective non-allelic conversion and concerted evolution. Furthermore, positive selection was presumably focused on intron 2, and possibly associated with the previous genetic features. However, the positive selection detected by several neutrality tests was discerned along the whole gene. In addition, the clear signature of negative selection was observed in the coding sequence. The maintenance of the CYP21 enzyme function is critical, and could lead to negative selection, whereas the presumed gene regulation altering steroid hormone levels via intron 2 might help fast adaptation, which broadly characterizes the genes of human CNVs responding to the environment

    Design and baseline characteristics of the finerenone in reducing cardiovascular mortality and morbidity in diabetic kidney disease trial

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    Background: Among people with diabetes, those with kidney disease have exceptionally high rates of cardiovascular (CV) morbidity and mortality and progression of their underlying kidney disease. Finerenone is a novel, nonsteroidal, selective mineralocorticoid receptor antagonist that has shown to reduce albuminuria in type 2 diabetes (T2D) patients with chronic kidney disease (CKD) while revealing only a low risk of hyperkalemia. However, the effect of finerenone on CV and renal outcomes has not yet been investigated in long-term trials. Patients and Methods: The Finerenone in Reducing CV Mortality and Morbidity in Diabetic Kidney Disease (FIGARO-DKD) trial aims to assess the efficacy and safety of finerenone compared to placebo at reducing clinically important CV and renal outcomes in T2D patients with CKD. FIGARO-DKD is a randomized, double-blind, placebo-controlled, parallel-group, event-driven trial running in 47 countries with an expected duration of approximately 6 years. FIGARO-DKD randomized 7,437 patients with an estimated glomerular filtration rate >= 25 mL/min/1.73 m(2) and albuminuria (urinary albumin-to-creatinine ratio >= 30 to <= 5,000 mg/g). The study has at least 90% power to detect a 20% reduction in the risk of the primary outcome (overall two-sided significance level alpha = 0.05), the composite of time to first occurrence of CV death, nonfatal myocardial infarction, nonfatal stroke, or hospitalization for heart failure. Conclusions: FIGARO-DKD will determine whether an optimally treated cohort of T2D patients with CKD at high risk of CV and renal events will experience cardiorenal benefits with the addition of finerenone to their treatment regimen. Trial Registration: EudraCT number: 2015-000950-39; ClinicalTrials.gov identifier: NCT02545049

    Xanthophyll Cycle in the Light of Thylakoid Membrane Lipids - Membrane Packing, Curvature Elastic Stress and Enzyme Binding

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    The xanthophyll cycle involves the light-dependent and reversible conversion of violaxanthin to zeaxanthin. The enzyme, violaxanthin de-epoxidase (VDE) catalyses the conversion of violaxanthin to zeaxanthin, via the intermediate antheraxanthin. VDE is a membrane-hosted enzyme during its activity. Low lumenal pH, violaxanthin, ascorbate and monogalactosyldiacylglycerol are required for activity. The formed zeaxanthin is involved in the protection of the photosynthetic apparatus from overexcitation. Apart from the energy-dissipating role, the xanthophyll cycle has been associated with a modulation of the physical properties of the thylakoid membrane. During photosynthetic activity, the lumenal pH drops and VDE undergoes a conformational change causing the active enzyme to bind to the lumenal side of the thylakoid membrane. Binding studies of VDE to the thylakoid membranes showed that the conserved histidine residues in the lipocalin region are involved in the conformational change of the enzyme. By altering the ratio between the lamellar and non-lamellar structures in the thylakoid membrane, the activity of VDE was influenced. When the thylakoids were treated with linolenic acid which increases non-lamellar prone structures in the membrane, enhanced zeaxanthin formation was seen. A model is proposed involving membrane curvature stress, thylakoid membrane packing and the xanthophyll cycle. According to this model the different xanthophyll pigments have different preferences for different membrane structures and can themselves induce differentially curved membrane regions. Zeaxanthin with its increased molecular hydrophobic length affects lipid packing, and brings about a release of curvature stress leading to a less favoured lipid environment for VDE. Xanthophylls, based on their rigid molecular structure, have been suggested to modify membrane structure, more specifically to decrease membrane fluidity. We have shown that accumulation of zeaxanthin in the isolated thylakoid membrane resulted in an increased rigidity of the membrane measured as a red-shifted fluorescence emission spectrum using laurdan, as a probe. These results further support the hypothesis that xanthophyll cycle pigments are located in the lipid phase of the thylakoid membrane and affect membrane physical properties
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