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Trama release

Anjali Kumar, Timothy J Divoll, Priya M Ganguli, Florencia A Trama, Carl H Lamborg
Mercury, a toxic trace metal, has been used extensively as an inexpensive and readily available method of extracting gold from fine-grained sediment. Worldwide, artisanal mining is responsible for one third of all mercury released into the environment. By testing bat hair from museum specimens and field collected samples from areas both impacted and unimpacted by artisanal gold mining in PerĂº, we show monomethylmercury (MMHg) has increased in the last 100 years. MMHg concentrations were also greatest in the highest bat trophic level (insectivores), and in areas experiencing extractive artisanal mining...
February 20, 2018: Environmental Pollution
Yong Li, Pei Li, Rong Zhu, Chao Luo, Hao Li, Shanfang Hu, Zhou Nie, Yan Huang, Shouzhuo Yao
Bioimaging probes for accurately monitoring apoptosis process have extensive significance for cell biological studies and clinical investigations. Herein, novel multifunctional peptide-tailored gold nanoclusters (AuNCs) have been developed for real-time imaging of caspase-indicated cell apoptosis. The AuNCs nanoprobe was facilely prepared by a one-step peptide-mediated biomineralization with the dye (TRAMA)-tagged peptides specific to caspase 3 as both template agents and the signal switch. Unlike conventional FRET-based fluorescent probes of caspase activity, these nanoprobes relied on the unique quenching effect of AuNCs through the nanosurface energy transfer (NSET) from dye to AuNCs...
November 15, 2016: Analytical Chemistry
Angel G Martin, Jason Trama, Diane Crighton, Kevin M Ryan, Howard O Fearnhead
Although the transcription factor NF-kappaB is most clearly linked to the inhibition of extrinsic apoptotic signals such as TNFalpha by upregulating known anti-apoptotic genes, NF-kappaB has also been proposed to be required for p53-induced apoptosis in transformed cells. However, the involvement of NF-kappaB in this process is poorly understood. Here we investigate this mechanism and show that in transformed MEFs lacking NF-kappaB (p65-null cells) genotoxin-induced cytochrome c release is compromised. To further address how NF-kappaB contributes to apoptosis, gene profiling by microarray analysis of MEFs was performed, revealing that NF-kappaB is required for expression of Noxa, a pro-apoptotic BH3-only protein that is induced by genotoxins and that triggers cytochrome c release...
February 18, 2009: Aging
Sandra Kampe, Karsten Wolter, Mathias Warm, Oguzhan Dagtekin, Sasan Shaheen, Susanne Landwehr
AIMS: To assess clinical equivalence of 20 mg controlled-release oxycodone (Oxygesic; Mundipharma, Limburg, Germany) and 200 mg controlled-release tramadol (Tramal long; Grunenthal, Aachen, Germany) on a 12-hour dosing schedule in a randomized, double-blinded study of 54 ASA I-III physical status (American Society of Anesthesiologists classification of physical status) patients undergoing surgery for breast cancer. METHODS: General anesthesia using remifentanil and propofol was performed for surgery...
2009: Pharmacology
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