Results 31 to 40 of about 280,367 (274)

Nonparametric estimation of correlation functions in longitudinal and spatial data, with application to colon carcinogenesis experiments [PDF]

Annals of Statistics 2007, Vol. 35, No. 4, 1608-1643, 2007
In longitudinal and spatial studies, observations often demonstrate strong correlations that are stationary in time or distance lags, and the times or locations of these data being sampled may not be homogeneous. We propose a nonparametric estimator of the correlation function in such data, using kernel methods. We develop a pointwise asymptotic normal
arxiv   +1 more source

Highly multiplexed digital PCR assay for simultaneous quantification of variant allele frequencies and copy number alterations of KRAS and GNAS in pancreatic cancer precursors

Molecular Oncology, EarlyView.
Combining melting curve analysis enhances the multiplexing capability of digital PCR. Here, we developed a 14‐plex assay to simultaneously measure single nucleotide mutations and amplifications of KRAS and GNAS, which are common driver genes in pancreatic cancer precursors. This assay accurately quantified variant allele frequencies in clinical samples
Junko Tanaka, Tatsuo Nakagawa, Yusuke Ono, Yoshio Kamura, Takeshi Ishida, Hidemasa Kawabata, Kenji Takahashi, Hiroki Sato, Andrew S. Liss, Yusuke Mizukami, Takahide Yokoi   +10 more
wiley   +1 more source

A role for the unfolded protein response stress sensor ERN1 in regulating the response to MEK inhibitors in KRAS mutant colon cancers

Genome Medicine, 2018
Background Mutations in KRAS are frequent in human cancer, yet effective targeted therapeutics for these cancers are still lacking. Attempts to drug the MEK kinases downstream of KRAS have had limited success in clinical trials.
Tonći Šuštić, Sake van Wageningen, Evert Bosdriesz, Robert J. D. Reid, John Dittmar, Cor Lieftink, Roderick L. Beijersbergen, Lodewyk F. A. Wessels, Rodney Rothstein, René Bernards   +9 more
doaj   +1 more source

Biophysical modelling of the effects of inhaled radon progeny on the bronchial epithelium for the estimation of the relationships applied in the two stage clonal expansion model of carcinogenesis [PDF]

, 2013
There is a considerable debate between research groups applying the two stage clonal expansion model for lung cancer risk estimation, whether radon exposure affects initiation and transformation or promotion. The objective of the present study is to quantify the effects of radon progeny on these stages with biophysical models.
arxiv   +1 more source

Comparing self‐reported race and genetic ancestry for identifying potential differentially methylated sites in endometrial cancer: insights from African ancestry proportions using machine learning models

Molecular Oncology, EarlyView.
Integrating ancestry, differential methylation analysis, and machine learning, we identified robust epigenetic signature genes (ESGs) and Core‐ESGs in Black and White women with endometrial cancer. Core‐ESGs (namely APOBEC1 and PLEKHG5) methylation levels were significantly associated with survival, with tumors from high African ancestry (THA) showing ...
Huma Asif, J. Julie Kim
wiley   +1 more source

Extracellular gamma-synuclein promotes tumor cell motility by activating β1 integrin-focal adhesion kinase signaling pathway and increasing matrix metalloproteinase-24, -2 protein secretion

Journal of Experimental & Clinical Cancer Research, 2018
Background Increasing evidence reveals a significant correlation between gamma-synuclein (SNCG) level and tumor invasion and metastasis in various human cancers. Our previous investigation showed that SNCG could secrete into extracellular environment and
Caiyun Liu, Like Qu, Chuanke Zhao, Chengchao Shou   +3 more
doaj   +1 more source

Does Porphyromonas gingivalis truly inhibit the oral carcinogenesis?

Molecular Oncology, EarlyView.
 
Chen‐xi Li, Zhong‐cheng Gong
wiley   +1 more source

Ancient variants of the Epstein–Barr virus (Herpesviridae, Lymphocryptovirus, HHV-4): hypotheses and facts

Вопросы вирусологии, 2020
Introduction. Molecular studies have shown that viruses appeared in the early stages of the evolution of life. For millions of years, viruses have evolved by changing old and acquiring new sequences in their RNA or DNA.
Kseniya V. Smirnova, Natalya B. Senyuta, Alexandra K. Lubenskaya, Tatyana E. Dushenkina, Vladimir E. Gurtsevich   +4 more
doaj   +1 more source

Circulating trans fatty acids are associated with prostate cancer in Ghanaian and American men

Nature Communications, 2023
The association between fatty acids and prostate cancer remains poorly explored in African-descent populations. Here, we analyze 24 circulating fatty acids in 2934 men, including 1431 prostate cancer cases and 1503 population controls from Ghana and the ...
Tsion Zewdu Minas, Brittany D. Lord, Amy L. Zhang, Julián Candia, Tiffany H. Dorsey, Francine S. Baker, Wei Tang, Maeve Bailey-Whyte, Cheryl J. Smith, Obadi M. Obadi, Anuoluwapo Ajao, Symone V. Jordan, Yao Tettey, Richard B. Biritwum, Andrew A. Adjei, James E. Mensah, Robert N. Hoover, Ann W. Hsing, Jia Liu, Christopher A. Loffredo, Clayton Yates, Michael B. Cook, Stefan Ambs   +22 more
doaj   +1 more source

Neutron Production in The Scattering S250 Mevion Proton-Therapy System [PDF]

arXiv, 2022
Secondary radiation in a radiation therapy environment is considered a cause for post-treatment side effects including secondary carcinogenesis. In a proton-therapy setup, neutrons deliver a considerable extra dose to the patient. Various measurements and calculations of neutron dose suggest a wide range of values for this quantity. This paper provides
arxiv