Results 131 to 140 of about 15,524 (254)

Mutagenicity testing for chemical risk assessment: update of the WHO/IPCS Harmonized Scheme [PDF]

, 2017
Since the publication of the International Programme on Chemical Safety (IPCS) Harmonized Scheme for Mutagenicity Testing, there have been a number of publications addressing test strategies for mutagenicity.
Anderson, Diana, Anwar, Wagida A., Cimino, Michael C., Dobrev, Ivan, Douglas, George R., Eastmond, David A., Hartwig, Andrea, Nohmi, Takehiko, Phillips, David H., Vickers, Carolyn   +9 more
core  

Morphology, Ontogenesis, and Multi‐Gene Phylogeny of the Type Species Cyrtohymena muscorum (Kahl, 1932) Foissner, 1989 (Alveolata, Ciliophora, Hypotricha)

Zoologica Scripta, Volume 55, Issue 2, Page 368-387, March 2026.
ABSTRACT Members of the oxytrichid genus Cyrtohymena are characterised by a distinctive undulating membranes type, known as the Cyrtohymena pattern, featuring a strongly curved stichodyad paroral that forms a semicircle distally. Although the type species, Cyrtohymena muscorum, has been redescribed morphologically, its ontogenesis remains poorly ...
Atef Omar, Jae‐Ho Jung
wiley   +1 more source

Safety and efficacy of a feed additive consisting of l‐lysine sulfate produced using Corynebacterium glutamicum KCCM 80368 for all animal species (CJ Europe GmbH)

EFSA Journal, Volume 24, Issue 3, March 2026.
Abstract Following a request from the European Commission, EFSA was asked to deliver a scientific opinion on the safety and efficacy of l‐lysine sulfate produced by fermentation using the genetically modified strain of Corynebacterium glutamicum, KCCM 80368, as a nutritional additive in feed for all animal species and categories.
EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP), Roberto Edoardo Villa, Giovanna Azimonti, Eleftherios Bonos, Henrik Christensen, Mojca Durjava, Birgit Dusemund, Ronette Gehring, Boet Glandorf, Maryline Kouba, Marta López‐Alonso, Francesca Marcon, Carlo Nebbia, Alena Pechová, Miguel Prieto‐Maradona, Katerina Theodoridou, Jürgen Gropp, Montserrat Anguita, Nicole Bozzi Cionci, Matteo L. Innocenti, Elisa Pettenati, Joana Revez, Joana P. Firmino   +22 more
wiley   +1 more source

Prevalence of micronuclei in exfoliated uterine cervical cells from patients with risk factors for cervical cancer

São Paulo Medical Journal
CONTEXT AND OBJECTIVE: Pap smears are the most common and inexpensive screening method for cervical cancer. We analyzed micronucleus prevalence in exfoliated cervical mucosa cells, to investigate associations between increased numbers of micronuclei and ...
Lízia Maria Franco dos Reis Campos, Francisca da Luz Dias, Lusânia Maria Greggi Antunes, Eddie Fernando Candido Murta   +3 more
doaj   +1 more source

Safety evaluation of vitamin K2 (menaquinone-7) via toxicological tests

Scientific Reports
This study aims to evaluate the safety of MK-7 produced by fermentation process using a Bacillus subtilis var. natto strain for human ingestion via acute oral toxicity, repeated dose 90-day oral toxicity, 28-day recovery test, and genotoxicity tests. The
Sung-bong Hwang, Min-ju Choi, Hyeon-jeong Lee, Jeong-jun Han   +3 more
doaj   +1 more source

Genotoxicity assessment of Elaeagnus angustifolia L. fruit extract (senjed) nanocapsule by in vitro and in vivo methods

Journal of Medicinal Plants, 2020
Background: Although initial studies on Elaeagnus Angustifolia L. Fruit Extract (Senjed) Nanocapsule showed its efficacy in osteoporosis in rat model as well as its significant role in elevating the serum calcium levels, there is no study on its possible
Negar Zamani, Masoomeh Heshmati, Sepideh Arbabi Bidgoli   +2 more
doaj  

Genotoksičnost živina klorida nakon oralne izloženosti štakora vrednovana kometnim testom i mikronukleusnim testom [PDF]

, 2005
Mercury is a toxic element which is easily absorbed after ingestion or inhalation and deposited mainly in the kidney. The aim of this study was to evaluate the effects of mercury chloride in rats.
Maja Blanuša, Ružica Rozgaj, Vilena Kašuba   +2 more
core   +1 more source

Safety evaluation of blue galdieria extract as a food additive

EFSA Journal, Volume 24, Issue 3, March 2026.
Abstract The EFSA Panel on Food Additive and Flavourings (FAF Panel) provides a scientific opinion on the safety of blue galdieria extract as a food additive. Blue galdieria extract is an enzymatically treated C‐phycocyanin extract derived from the lysed biomass of the microalgae Galdieria sulphuraria.
EFSA Panel on Food Additives and Flavourings (FAF), Laurence Castle, Monica Andreassen, Gabriele Aquilina, Maria Lourdes Bastos, Polly Boon, Biagio Fallico, Reginald FitzGerald, Maria Jose Frutos Fernandez, Bettina Grasl‐Kraupp, Ursula Gundert‐Remy, Rainer Gürtler, Eric Houdeau, Marcin Kurek, Henriqueta Louro, Patricia Morales, Sabina Passamonti, José Manuel Barat Baviera, Gisela Degen, David Gott, Lieve Herman, Jean‐Charles Leblanc, Peter Moldeus, Ine Waalkens‐Berendsen, Detlef Wölfle, Civitella Consuelo, Ana Maria Rincon, Alexandra Tard, Alessandra Tosato, Panagiota Zakidou, Laura Ruggeri   +30 more
wiley   +1 more source

Micronucleus test on gas station attendants.

Genetics and molecular research : GMR, 2006
In the present study, the micronucleus test was applied in exfoliated cells of buccal mucosa to assess the mutagenicity risk associated with occupational exposure for gas station attendants. For each individual, 2000 exfoliated buccal cells were analyzed for micronucleus frequency.
Cibelem Iribarrem, Benites, Lílian Lund, Amado, Rita Aloma Packeiser, Vianna, Maria da Graça, Martino-Roth   +3 more
openaire   +1 more source

Tradescantia-micronucleus test on potassium dichromate

, 1986
"Cuttings with inflorescences of Tradescantia clone 4430 were allowed to absorb severa1different concentrations of potassium dichromate during 6 hours and analysed 30 hoursJater. The frequencies of micronuclei (MCNs) in tetrads were more than twice thoseof the control. The relationship concentration-frequency was asymptotic."
Rafael Villalobos, Sandra Gómez, Ana Rosa Flores, Adriana Cisneros   +3 more
openaire   +1 more source