3,733 research outputs found
Is Mother Loss Curriculum Effective in Promoting a Healthy Grieving Process?
The death of a mother for a daughter carries certain effects that are different than those experienced with the death of a father or another loved one. This practice evaluation was initiated to study the effectiveness of the curriculum in promoting a healthy grieving process. Current literature is minimal in regards to the impact of mother loss on adult daughters as well as methods in which to assist adult daughters through the grief process. The research design and method included a grief/depression self test which was administered as a pre/post-test and eight weekly evaluations. Both were quantitative although the evaluations included some qualitative data. The research demonstrated that the Mother Loss curriculum was effective in promoting a healthy grieving process
DNA-PKCS binding to p53 on the p21WAF1/CIP1 promoter blocks transcription resulting in cell death
A key determinant of p53-mediated cell fate following various DNA damage modalities is p21WAF1/CIP1 expression, with elevated p21 expression triggering cell cycle arrest and repressed p21 expression promoting apoptosis. We show that under pro-death DNA damage conditions, the DNA-dependent protein kinase (DNA-PKCS) is recruited to the p21 promoter where it forms a protein complex with p53. The DNA-PKCS-associated p53 displays post-translational modifications that are distinct from those under pro-arrest conditions, ablating p21 transcription and inducing cell death. Inhibition of DNA-PK activity prevents DNA-PKCS binding to p53 on the p21 promoter, restores p21 transcription and significantly reduces cell death. These data demonstrate that DNA-PKCS negatively regulates p21 expression by directly interacting with the p21 transcription machinery via p53, driving the cell towards apoptosis
Informal Science Experiences among Urban and Rural Youth: Exploring Differences at the Intersections of Socioeconomic Status, Gender and Ethnicity
The current study explores patterns of informal science experiences among youth in urban and rural middle schools by gender and socioeconomic status. Data come from surveys in two Midwestern middle schools, one in a mid-sized city, and the other in a rural-remote town. We asked about participation in informal science activities (e.g. visiting zoos or museums, or watching shows about science) and if youth had participated in science-focused clubs in the last 12 months (e.g. after-school science clubs, 4-H, scouts). Rural youth reported lower rates of participation in after-school science clubs and a greater desire to participate in after-school science programming than urban youth. Latino/a youth tend to have fewer informal science experiences than non- Latino/a youth, particularly in urban areas. There were few differences in informal science experiences between boys and girls, but in urban areas, girls report more science experiences than boys. Reported science experiences are overall higher in urban areas, yet youth with fewer resources (i.e. books in the home) have fewer informal science experiences overall. This study sheds new light on how socioeconomic status, gender, ethnicity, and geography interact with one another to shape youth science exposure and interest
Retraction notice to " IP1867B suppresses the Insulin-like Growth Factor 1 Receptor (IGF1R) ablating epidermal growth factor receptor inhibitor resistance in adult high grade gliomas” [Canc. Lett., 458 (2019) pages 29–38]
This article has been retracted at the request of the Editor-in-Chief due to concerns regarding the legitimacy of images and data presented in the paper. Though a corrigendum (Can. Lett. Vol. 469, 2020, pages 524–535) was previously published to address some of these concerns, this corrigendum has also been found to contain errors and therefore cannot stand. Specific concerns are listed below.info:eu-repo/semantics/publishedVersio
Calcitonin Gene Peptides: The Diagnostic Value of Measurement in Medullary Thyroid Carcinoma
The calcitonin gene encodes a family of peptides, at least three of which normally circulate in man: calcitonin (CT), a calcium-lowering hormone; katacalcin (KC), a peptide of unknown function; and calcitonin gene-related peptide (CGRP), a neuropeptide and potent vasodilator. In a study of 45 patients with medullary thyroid carcinoma (MTC), plasma CGRP was elevated in approximately 50% of cases. Furthermore, CGRP levels did not correlate with CT levels. However, plasma KC was elevated in all cases, with a good correlation with CT levels, as has been noted previously. Measurement of CT or KC appears to be superior to measurement of CGRP for the detection of MTC
Modulating autophagy as a therapeutic strategy for the treatment of paediatric high‐grade glioma
Paediatric high grade glioma (pHGG) represent a therapeutically challenging group of tumours. Despite decades of research there has been a minimal improvement in treatment and the clinical prognosis remains poor. Autophagy, a highly conserved process for recycling metabolic substrates is upregulated in pHGG, promoting tumour progression and evading cell death. There is significant cross talk between autophagy and a plethora of critical cellular pathways, many of which Accepted Article This article is protected by copyright. All rights reserved. are dysregulated in pHGG. The following article will discuss our current understanding of autophagy signalling in pHGG and the potential modulation of this network as a therapeutic target
IP1867B suppresses the insulin-like growth factor 1 receptor (IGF1R) ablating epidermal growth factor receptor inhibitor resistance in adult high grade gliomas
High grade gliomas (HGGs) are aggressive primary brain tumours with local invasive growth and poor clinical prognosis. Clinical outcome is compounded by resistance to standard and novel therapeutics. We have evaluated reformulated aspirin (IP1867B) alone and in combination with conventional and novel anti-aHGG agents. We show that recent biopsy-derived aHGG models were highly resistant to conventional therapeutics although show sensitivity to IP1867B, a reformulated "liquid" aspirin. IP186713 treatment mediated a potent suppression of the IL6/STAT3 and NF-kappa B pathways and observed a significant reduction in EGFR transcription and protein expression. We observed the loss of the insulin-like growth factor 1 and insulin-like growth factor 1 receptor expression at both the transcript and protein level post IP1867B treatment. This increased sensitivity to EGFR inhibitors. In vivo, IP1867B was very well tolerated, had little-to-no gastric lesions versus aspirin and, directed a significant reduction of tumour burden with suppression of EGFR, IGF1 and IGFR1. With EGFR inhibitors, we noted a potent synergistic response in aHGG cells. These data provide a rationale for further investigation of IP1867B with a number of anti-EGFR agents currently being evaluated in the clinic.Brain Tumour ResearchHeadcase Cancer TrustOllie Young FoundationFCT Investigator contract from the Foundation for Science and Technology (FCT), Portugal [IF/00614/2014]FCTPortuguese Foundation for Science and Technology [IF/00614/2014/CP12340006, UID/BIM/04773/2013CBMR1334]Innovate Pharmaceutical
Corrigendum to IP1867B suppresses the insulin-like growth factor 1 receptor (IGF1R) ablating epidermal growth factor receptor inhibitor resistance in adult high grade gliomas (vol 458C, pg 29, 2019)
info:eu-repo/semantics/publishedVersio
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