Results 21 to 30 of about 20,819 (124)

Re‐evaluation of the risks to public health related to the presence of bisphenol A (BPA) in foodstuffs

EFSA Journal, Volume 21, Issue 4, April 2023., 2023
Abstract In 2015, EFSA established a temporary tolerable daily intake (t‐TDI) for BPA of 4 μg/kg body weight (bw) per day. In 2016, the European Commission mandated EFSA to re‐evaluate the risks to public health from the presence of BPA in foodstuffs and to establish a tolerable daily intake (TDI). For this re‐evaluation, a pre‐established protocol was
EFSA Panel on Food Contact Materials, Enzymes and Processing Aids (CEP), Claude Lambré, José Manuel Barat Baviera, Claudia Bolognesi, Andrew Chesson, Pier Sandro Cocconcelli, Riccardo Crebelli, David Michael Gott, Konrad Grob, Evgenia Lampi, Marcel Mengelers, Alicja Mortensen, Gilles Rivière, Vittorio Silano (until 21 December 2020†), Inger‐Lise Steffensen, Christina Tlustos, Laurence Vernis, Holger Zorn, Monika Batke, Margherita Bignami, Emanuela Corsini, Rex FitzGerald, Ursula Gundert‐Remy, Thorhallur Halldorsson, Andrew Hart, Evangelia Ntzani, Eugenio Scanziani, Henri Schroeder, Beate Ulbrich, Dina Waalkens‐Berendsen, Detlef Woelfle, Zainab Al Harraq, Katleen Baert, Maria Carfì, Anna F Castoldi, Cristina Croera, Henk Van Loveren   +37 more
wiley   +1 more source

Salivary α-amylase exhibits antiproliferative effects in primary cell cultures of rat mammary epithelial cells and human breast cancer cells

Journal of Experimental & Clinical Cancer Research, 2011
Background Breast cancer is one of the most diagnosed cancers in females, frequently with fatal outcome, so that new strategies for modulating cell proliferation in the mammary tissue are urgently needed.
Bertram Catharina, Hass Ralf, Fedrowitz Maren, Löscher Wolfgang   +3 more
doaj   +1 more source

Efficient gene targeting by homologous recombination in rat embryonic stem cells.

PLoS ONE, 2010
The rat is the preferred experimental animal in many biological studies. With the recent derivation of authentic rat embryonic stem (ES) cells it is now feasible to apply state-of-the art genetic engineering in this species using homologous recombination.
Stephen Meek, Mia Buehr, Linda Sutherland, Alison Thomson, John J Mullins, Andrew J Smith, Tom Burdon   +6 more
doaj   +1 more source

Effect of chronic alcohol ingestion on the progression of periodontitis induced in Fisher-344 rats [PDF]

RGO: Revista Gaúcha de Odontologia, 2009
Objective: Understand the effect of chronic alcohol on the progression of periodontitis induced in Fischer-344 rats.Methods: For the study, 22 Fischer-344 rats, two months old were used, divided into groups: alcohol (n=8), ligature (n=7) and control (n=7)
Éder Ricardo Biasoli, Tereza Aparecida Delle Vedove Semenoff, Alex Semenoff Segundo   +2 more
doaj  

Lack of efficacy of blueberry in nutritional prevention of azoxymethane-initiated cancers of rat small intestine and colon

BMC Gastroenterology, 2009
Background Blueberries may lower relative risk for cancers of the gastrointestinal tract. Previous work indicated an inhibitory effect of consumed blueberry (BB) on formation of aberrant crypt foci (ACF) in colons of male Fisher F344 rats (inbred strain).
Wu Xianli, Frank Julie A, Simmen Frank A, Xiao Rijin, Hennings Leah J, Prior Ronald L   +5 more
doaj   +1 more source

Photoperiodic Effects on Seasonal Physiology, Reproductive Status and Hypothalamic Gene Expression in Young Male F344 Rats

Journal of neuroendocrinology, 2015
Seasonal or photoperiodically sensitive animals respond to altered day length with changes in physiology (growth, food intake and reproductive status) and behaviour to adapt to predictable yearly changes in the climate.
F. M. Tavolaro, L. M. Thomson, A. Ross, P. Morgan, G. Helfer   +4 more
semanticscholar   +1 more source

Whole-Genome Sequences of DA and F344 Rats with Different Susceptibilities to Arthritis, Autoimmunity, Inflammation and Cancer

Genetics, 2013
DA (D-blood group of Palm and Agouti, also known as Dark Agouti) and F344 (Fischer) are two inbred rat strains with differences in several phenotypes, including susceptibility to autoimmune disease models and inflammatory responses.
Xiaosen Guo, M. Brenner, Xuemei Zhang, T. Laragione, S. Tai, Yanhong Li, Junjie Bu, Ye Yin, Anish A. Shah, K. Kwan, Yingrui Li, Wang Jun, P. Gulko   +12 more
semanticscholar   +1 more source

Cutaneous photosensitivity of phototheranostic porphyrin–lipid nanoparticles

Photochemistry and Photobiology, Volume 101, Issue 6, Page 1541-1558, November/December 2025.
Porphyrin‐lipid nanoparticles (PORPHYSOMES) exhibit significantly less severe and shorter‐lasting skin photosensitivity to sunlight compared to a therapeutically equivalent dose of porfimer sodium (PHOTOFRIN) in a rat skin model. The difference was due to altered intradermal distribution and faster clearance of PORPHYSOMES from skin after intravenous ...
Michael S. Valic, Mark Zheng, Theo Husby, Keegan Guidolin, Axel Sahovaler, Sharon Tzelnick, Wenlei Jiang, Michael Halim, Pamela Schimmer, Abdullah El‐Sayes, Chris J. Zhang, Tina Ye, Ivan Kosik, Jason L. Townson, Kenneth K. Ng, Lili Ding, Juan Chen, Jonathan C. Irish, Robert Weersink, Brian C. Wilson, Gang Zheng   +20 more
wiley   +1 more source

Organ Specificity and Commonality of Epigenetic Aging in Low‐ and High‐Running Capacity Rats

Aging Cell, Volume 24, Issue 8, August 2025.
Cardiorespiratory fitness (CRF) is not associated with epigenetic clocks, including newly developed ones. On the other hand, CRF is associated with global methylation profiles and promoter methylation in organ‐specific and organ‐common manner. ABSTRACT Epigenetic drift, which is gradual age‐related changes in DNA methylation patterns, plays a ...
Takuji Kawamura, Csaba Kerepesi, Juliet Polok Sarkar, Ferenc Torma, Zoltan Bori, Lei Zhou, Peter Bakonyi, Attila Kolonics, Laszlo Balogh, Mitsuru Higuchi, Vivien Pillár, Karolina Pircs, Lauren Gerard Koch, Steven Loyal Britton, Erika Koltai, Zsolt Radak   +15 more
wiley   +1 more source

Stress Alters the Discriminative Stimulus and Response Rate Effects of Cocaine Differentially in Lewis and Fischer Inbred Rats

Behavioral Science, 2012
Stress enhances the behavioral effects of cocaine, perhaps via hypothalamic-pituitary-adrenal (HPA) axis activity. Yet, compared to Fischer 344 (F344) rats, Lewis rats have hyporesponsive HPA axis function and more readily acquire cocaine self ...
T. Kosten, Mindy J. D. Miserendino
semanticscholar   +1 more source