24 research outputs found

    ι-Fetoprotein and human chorionic gonadotrophin-β as prognostic markers in neuroendocrine tumour patients

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    Serum chromogranin A is the most useful general and prognostic tumour marker available for neuroendocrine tumour (NET) patients. The role of other tumour markers is less clear. In order to determine the diagnostic and prognostic value of serum ι-fetoprotein (AFP) and human chorionic gonadotrophin-β (hCGβ) in NETs, a database containing biochemical, histological, and survival data on 360 NET patients was constructed. This data was statistically assessed, using Statistical Package for the Social Sciences, to determine the utility of commonly measured tumour markers with particular emphasis on AFP and hCGβ. ι-Fetoprotein and hCGβ were raised in 9.5 and 12.3% of patients respectively and jointly raised in 9.1% of patients in whom it was measured. ι-Fetoprotein levels associated strongly and positively with tumour grade, serum CgA and hCGβ levels, and worse survival. Human chorionic gonadotrophin-β levels also associated strongly and positively with serum CgA and AFP levels, and worsening survival. ι-Fetoprotein and hCGβ are elevated in high-grade NETs, with a rapidly progressive course and poorer survival. They also correlate with chromogranin-A, which is known to be a marker of tumour burden and to have prognostic value. Thus AFP and hCGβ are clinically important in NETs and when elevated are poor prognostic markers

    A brief report on the associations amongst social media use, gender, and body esteem in a UK student sample

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    Research into the effects of social media on personal wellbeing have been controversial in recent years, with recent research highlighting links between social media use and body esteem. This conceptual replication study aimed to explore relationships amongst social media use, body esteem and gender amongst UK university students (n=100). Participants completed measures of social media use and body image esteem. It was hypothesised that social media intensity and usage would negatively predict body esteem, with high social media intensity relating to lower body esteem. We find that gender was the only significant predictor of body esteem, with women having lower body esteem compared to men. We were unable to replicate previous findings, as our findings show no relationships amongst social media intensity, use, and body esteem

    Mitochondrial dysfunction and biogenesis: do ICU patients die from mitochondrial failure?

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    Mitochondrial functions include production of energy, activation of programmed cell death, and a number of cell specific tasks, e.g., cell signaling, control of Ca2+ metabolism, and synthesis of a number of important biomolecules. As proper mitochondrial function is critical for normal performance and survival of cells, mitochondrial dysfunction often leads to pathological conditions resulting in various human diseases. Recently mitochondrial dysfunction has been linked to multiple organ failure (MOF) often leading to the death of critical care patients. However, there are two main reasons why this insight did not generate an adequate resonance in clinical settings. First, most data regarding mitochondrial dysfunction in organs susceptible to failure in critical care diseases (liver, kidney, heart, lung, intestine, brain) were collected using animal models. Second, there is no clear therapeutic strategy how acquired mitochondrial dysfunction can be improved. Only the benefit of such therapies will confirm the critical role of mitochondrial dysfunction in clinical settings. Here we summarized data on mitochondrial dysfunction obtained in diverse experimental systems, which are related to conditions seen in intensive care unit (ICU) patients. Particular attention is given to mechanisms that cause cell death and organ dysfunction and to prospective therapeutic strategies, directed to recover mitochondrial function. Collectively the data discussed in this review suggest that appropriate diagnosis and specific treatment of mitochondrial dysfunction in ICU patients may significantly improve the clinical outcome

    Physical Attractiveness, Altruism and Cooperation in an Ultimatum Game

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    Explaining cooperative tendencies through an evolutionary lens has been problematic for theorists. Traditional explanations derive from theories of reciprocity, biological markets, and more recently via partner choice and sexual selection. The sexual selection hypothesis has been tested within game-theoretic frameworks gaining empirical sup- port in explaining the evolution of altruism. Males have been found to be more altruistic towards attractive females. However, previous research has predominantly adopted a design where participants are not engaging with ‘real people’. Instead, participants make decisions when viewing images or hypothetical scenarios without visual cues. The present study aimed to investigate the sexual selection hypothesis using a face-to-face game theoretic framework. One hundred and thirty-eight participants played a 2-round ultimatum game with chocolate coins as the monetary incentive. We find, that physical attractiveness had no influence on generosity and cooperation when participants play a face-to-face ultimatum game. Instead, proposers were fair when allocating stakes, offering an average of half the endowment to responders. This study refutes the link between the sexual selection hypothesis and generosity when playing economic games with real people. Fairness appeared to drive generosity and cooperation

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    Not AvailableLong-term application of sewage for crop production accumulates significant amount of heavy metals in soil. Some of these metals are carcinogenic and affect the soil, plant, animal and human health adversely. Phytoremediation with mustard is a well known and regularly adopted practice for metal removal from contaminated areas. However, genetic potential of mustard cultivars may have much influence on phytoremediation potential of mustard. For this, four prominent mustard crop varieties (NRC DR 2, NRC HB 101, RH 749 and RH 119) were grown at sewage contributed metal contaminated agriculture fields of Islamnagar and Bheropura villages. Results showed that all the mustard varieties removed significant amount of Cu, Cd, Pb, Cr, Ni, Zn and Mn from soil. Mean data of all three locations showed that maximum removal of Cu (479 mg plant-1), Cd (2.80 mg plant-1), Cr (38.1 mg plant-1), Ni (9.96 mg plant-1), Zn (26.6 mg plant-1) and Mn (538 mg plant-1) was in NRC HB 101 except for Pb uptake which was highest in NRC DR 2 (1.53 mg plant-1). The NRC HB 101 showed higher phytoextraction potential compared to rest of the varieties. These results are very much useful for formulation of phytoremediation management strategies under metal contaminated agriculture areas.Not Availabl

    Amazon Effect? an Analysis of User-Generated Content on Consumer Electronics Retailers’ Facebook Pages

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    This working paper aims at exploring the so-called “Amazon effect” in consumer electronics retail industry, and specifically the impact Amazon has generated in terms of consumers’ expectations when consumers buy (or willing to buy) these type of products. The paper reviews the meaning of Amazon effect (or Amazonification) in different fields of study, and then focuses on the escalation of customer expectations towards retailers. A content analysis of users’ comments drawn from Facebook pages of three leading consumer electronics retailers in Italy across a two-year span (2016-2018) serves to evaluate the relevance of different customer expectations. The preliminary findings show that consumers’ conversations related to “Amazon effect” seem widely diffused on consumer electronics retailers, especially regarding effectiveness of customer service, online purchasing experience, and fast delivery times. The paper argues the need for further research to better disentangle the Amazonification concept in terms of customer impatience, also going beyond price and logistics issues, usually considered as the main constitutive factors

    Using Formative Research to Develop a Counselor Training Program for Newborn Screening in Ghana

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    Sickle cell disease (SCD), sickle cell trait (SCT) and related conditions are highly prevalent in sub-Saharan Africa. Despite the public health implications, there is limited understanding of the unique needs regarding establishing and implementing extensive screening for newborns and appropriate family counseling. We sought to gain understanding of community attitudes and beliefs about SCD/SCT from counselors and potential counselors in Ghana; obtain their input about goals for counseling following newborn screening; and obtain guidance about developing effective counselor education. Five focus groups with 32 health care providers and health educators from 9 of 10 regions in Ghana were conducted by trained facilitators according to a structured protocol. Qualitative data were coded and categorized to reflect common themes. Saturation was achieved in themes related to genetics/inheritance; common complications of SCD; potential for stigmatization; marital strain; and emotional stress. Misconceptions about SCT as a form of SCD were prevalent as were cultural and spiritual beliefs about the causes of SCD/SCT. Potential positive aspects included affected children's academic achievement as compensation for physical limitations, and family cohesion. This data informed recommendations for content and structure of a counselor training program that was provided to the Ministry of Health in Ghana
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