Window collisions are one of the largest human-caused causes of avian mortality in built environments and, therefore, cause population declines that can be a significant conservation issue. Applications of visibly noticeable films, patterns, and decals on the external surfaces of windows have been associated with reductions in both window collisions and avian mortality. It is often logistically difficult and economically prohibitive to apply these films and decals to external surfaces, especially if the windows are above the first floor of a building.
View Article and Find Full Text PDFContext: For this case series, 4 student-athletes (age range = 20-22 years) participating in National Collegiate Athletic Association Division I ice hockey served as cases. They were free of injury and participated in all team activities without restrictions.
Treatment: A dry needling (DN) lower extremity recovery protocol was completed for all athletes during a single session.
According to the inhibition deficit hypothesis, the ability to inhibit unwanted or irrelevant thoughts and behaviors decreases with age, which can have a significant impact on cognitive and emotional processing. However, studies examining inhibition and age have shown mixed results, with some studies finding a decrease in inhibitory control as individuals age, while others have found no relationship. The goal of this proof-of-concept study was to examine the underlying neural mechanisms that may explain why some older adults are better than others at inhibitory control by investigating the relationship between resting-state functional connectivity (rsFC) of the salience network, a network critical for detecting and focusing attention toward relevant stimuli while ignoring irrelevant information in the environment, and a behavioral measure of inhibitory control (Stroop Task interference score) in a sample of 65 healthy older individuals (ages 65+).
View Article and Find Full Text PDFIn March 2020, the UK was placed in lockdown following the spread of the Covid-19 virus. Just as legitimate workplaces made changes to enable their employees to work from home, the illicit drugs trade also made alternative arrangements, adapting its supply models to ensure continuity of operations. Based upon qualitative interviews with 46 practitioners, this paper assesses how front-line professionals have experienced and perceived the impact of Covid-19 on child criminal exploitation and County Lines drug supply in the UK.
View Article and Find Full Text PDFActa Crystallogr E Crystallogr Commun
September 2021
Three cyclo-penta-dienylmolybdenum(II) propionyl complexes featuring tri-aryl-phosphine ligands with different substituents, namely, dicarbon-yl(η-cyclo-penta-dien-yl)propion-yl(tri-phenyl-phosphane-κ)molybdenum(II), [Mo(CH)(CHO)(CHP)(CO)], (), dicarbon-yl(η-cyclo-penta-dien-yl)propion-yl[tris-(4-fluoro-phen-yl)phosphane-κ]molybdenum(II), [Mo(CH)(CHO)(CHFP)(CO)], (), and dicarbon-yl(η-cyclo-penta-dien-yl)propion-yl[tris-(4-meth-oxy-phen-yl)phosphane-κ]molybdenum(II) dichloromethane solvate, [Mo(CH)(CHO)(CHOP)(CO)]·CHCl, (), have been prepared from the corresponding ethyl complexes phosphine-induced migratory insertion. These complexes exhibit four-legged piano-stool geom-etries with mol-ecular structures quite similar to each other and to related acetyl complexes. The extended structures of the three complexes differ somewhat, with the substituent of the tri-aryl-phosphine of () (fluoro) or () (meth-oxy) engaging in non-classical C-H⋯F or C-H⋯O hydrogen-bonding inter-actions.
View Article and Find Full Text PDFDepletion of BRCA1 protein in mouse mammary glands results in defects in lactational development and increased susceptibility to mammary cancer. Extensive work has focussed on the role of BRCA1 in the normal breast and in the development of breast cancer, the cell of origin for BRCA1 tumours and the protein-coding genes altered in BRCA1 deficient cells. However, the role of non-coding RNAs in BRCA1-deficient cells is poorly understood.
View Article and Find Full Text PDFBackground/purpose: Athletes experiencing hip, groin, and low back pain often exhibit similar clinical characteristics. Individuals with hip, groin and low back pain may have the presence of multiple concurrent pathoanatomical diagnoses. Regardless, similar regional characteristics and dysfunction may contribute to the patient's chief complaint, potentially creating a sub-group of individuals that may be defined by lumbopelvic and hip mobility limitations, motor control impairments, and other shared clinical findings.
View Article and Find Full Text PDFDepletion of Brca1 leads to defects in mouse mammary gland development and mammary tumors in humans and mice. To explore the role of microRNAs (miRNAs) in this process, we examined the mammary glands of MMTV-Cre Brca1(Co/Co) mice for differential miRNA expression using a candidate approach. Several miRNAs were differentially expressed in mammary tissue at day 1 of lactation and in mammary epithelial cell lines in which Brca1 messenger RNA (mRNA) levels have been reduced.
View Article and Find Full Text PDFBackground: Inpatient satisfaction is a key element of hospital pay-for-performance programs. Communication and pain management are known to influence results, but additional factors may affect satisfaction scores. We tested the hypothesis that patient factors and outcome parameters not considered previously are clinically important drivers of inpatient satisfaction.
View Article and Find Full Text PDFBackground: Percutaneous endoscopic gastrostomy (PEG) placement in children has come under scrutiny with reports of improved safety profiles using laparoscopic-assisted techniques. However, these reports are generally limited by their retrospective nature and the inclusion of historically determined PEG complication rates in children. Complication rates associated with PEG placement in children have not been prospectively studied, and a true modern understanding of the safety profile of PEG when performed in children is unknown.
View Article and Find Full Text PDFMutations in the BRCA1 gene confer a substantial increase in breast cancer risk, yet routine clinical genetic screening is limited to the coding regions and intron-exon boundaries, precluding the identification of mutations in noncoding and untranslated regions (UTR). As 3'UTR mutations can influence cancer susceptibility by altering protein and microRNA (miRNA) binding regions, we screened the BRCA1 3'UTR for mutations in a large series of BRCA-mutation negative, population and clinic-based breast cancer cases, and controls. Fifteen novel BRCA1 3'UTR variants were identified, the majority of which were unique to either cases or controls.
View Article and Find Full Text PDFIntroduction: Mesenchymal stem cell (MSC) therapy improves cardiac function after ischemia/reperfusion injury, but its effectiveness is limited by MSC survival in hypoxic environments. Toll-like receptor 4 (TLR4) contributes to pro-apoptotic signaling under hypoxic conditions. Activation of intracellular AKT and ERK pathways opposes this signal and improves cell survival.
View Article and Find Full Text PDFInt J Clin Exp Med
August 2012
Background: Gender-specific disparities have been observed in myocardium exposed to tumor necrosis factor-α (TNF). Male myocardium demonstrates greater loss in cardiac function in the presence of a given TNF level compared to female. In addition, we have previously demonstrated that estrogen has little influence on reducing TNF-caused myocardial dysfunction in female hearts, suggesting that male hormone - testosterone may be responsible for gender differences in TNF-mediated myocardial damage.
View Article and Find Full Text PDFBackground: Changes in platelet reactivity during 2009 influenza A(H1N1) (A[H1N1]) have not been characterized.
Methods: We prospectively examined platelet activation and cytokine responses in patients with A(H1N1) (n = 20), matched patients with bacterial pneumonia (n = 15), and nonhospitalized, healthy control subjects (n = 10).
Results: Platelet-monocyte aggregation was higher in patients with A(H1N1) (21.
Background: Neonatal mesenchymal stem cells exhibit less cardioprotective potential than their adult counterparts. Transforming growth factor-α (TGF-α) has been shown to stimulate adult stem cell VEGF production, however, it remains unknown whether it may augment neonatal stem cell paracrine function. We hypothesized that TGF-α would equalize adult and neonatal stem cell paracrine function and cardioprotection during acute ischemia/reperfusion.
View Article and Find Full Text PDFMicroRNAs (miRNAs) are small non-coding RNAs of ∼20 nt in length that are capable of modulating gene expression post-transcriptionally. Although miRNAs have been implicated in cancer, including breast cancer, the regulation of miRNA transcription and the role of defects in this process in cancer is not well understood. In this study we have mapped the promoters of 93 breast cancer-associated miRNAs, and then looked for associations between DNA methylation of 15 of these promoters and miRNA expression in breast cancer cells.
View Article and Find Full Text PDFBackground: Sepsis remains a source of morbidity and mortality in the postoperative patient despite appropriate resuscitative and antimicrobial approaches. Recent research has focused upon additional interventions such as exogenous cell-based therapy. Mesenchymal stem cells (MSCs) exhibit multiple beneficial properties through their capacity for homing, attenuating the inflammatory response, modulating immune cells, and promoting tissue healing.
View Article and Find Full Text PDFBackground: Stem cells protect the heart from ischemic damage in part by the release of cytoprotective growth factors, particularly vascular endothelial growth factor (VEGF). Production of VEGF is regulated in part by levels of the transcription factor hypoxia inducible factor 1-α (HIF-1α). Dimethyloxalylglycine (DMOG) prevents the deactivation of HIF-1α and increases VEGF production.
View Article and Find Full Text PDFBackground: Cytoprotective growth factors such as vascular endothelial growth factor (VEGF) play important roles in myocardial protection from ischemia/reperfusion (I/R). Accumulating evidence suggests that the hypoxia-inducible factor 1 (HIF-1) pathway is a key regulator of VEGF production in the setting of I/R. The prolyl hydroxylase inhibitor mimosine can increase VEGF production through the HIF-1 pathway.
View Article and Find Full Text PDFBackground: Cardiac surgery induces the release of inflammatory mediators that can prolong cardiac dysfunction after operative intervention. Interleukin-10 (IL-10), a potent inhibitor of myocardial inflammation, is a known factor in myocardial protection after ischemia/reperfusion (I/R) injury. We hypothesized that IL-10 activity during initial reperfusion is mediated through the signal transducer and activator of transcription 3 (STAT3) pathway.
View Article and Find Full Text PDFBackground: Signal transducer and activator of transcription 3 (STAT3) regulates myocardial apoptosis, cellular proliferation, and the immune response after ischemia/reperfusion (I/R). STAT3 is also necessary for the production of vascular endothelial growth factor (VEGF) by mesenchymal stem cells (MSCs), which are known to reduce myocardial injury after I/R. However, it remains unknown whether STAT3 is an important mediator of MSC-based cardioprotection.
View Article and Find Full Text PDFAm J Physiol Regul Integr Comp Physiol
June 2011
Mesenchymal stem cells (MSCs) may offer therapeutic benefit in the setting of sepsis and endotoxemia. Previous studies suggest that MSCs from female donors may possess better protective capabilities than their male counterparts. The present study examined whether female MSCs may offer a greater protective advantage in the setting of endotoxemic cardiac dysfunction compared with male MSCs.
View Article and Find Full Text PDFDisruption of the breast cancer susceptibility gene Brca1 results in defective lobular-alveolar development in the mammary gland and a predisposition to breast tumourigenesis in humans and in mice. Recent evidence suggests that BRCA1 loss in humans is associated with an expansion of the luminal progenitor cell compartment in the normal breast and tumours with a luminal progenitor-like expression profile. To further investigate the role of BRCA1 in the mammary gland, we examined the consequences of Brca1 loss in mouse mammary epithelial cells in vitro and in vivo.
View Article and Find Full Text PDFBackground: Stem cell-based therapies for myocardial ischemia have demonstrated promising early clinical results, but their benefits have been limited in duration due to impaired donor cell engraftment and function. Several strategies have emerged for enhancing stem cell function prior to their therapeutic use particularly with regard to stem cell homing, paracrine function, and survival. This review discusses current understandings of stem cell-mediated cardioprotection as well as methods of enhancing post-transplantation stem cell function and survival through hypoxic preconditioning, genetic manipulation, and pharmacologic pretreatment.
View Article and Find Full Text PDFBackground: Genetic screening of breast cancer patients and their families have identified a number of variants of unknown clinical significance in the breast cancer susceptibility genes, BRCA1 and BRCA2. Evaluation of such unclassified variants may be assisted by web-based bioinformatic prediction tools, although accurate prediction of aberrant splicing by unclassified variants affecting exonic splice enhancers (ESEs) remains a challenge.
Methods: This study used a combination of RT-PCR analysis and splicing reporter minigene assays to assess five unclassified variants in the BRCA2 gene that we had previously predicted to disrupt an ESE using bioinformatic approaches.