Results 61 to 70 of about 1,417,551 (264)

Genotoxic evaluation of polymeric nanoparticles

open access: yesFrontiers in Genetics, 2015
An important strategy for optimizing the therapeutic efficacy of many conventional drugs is the development of polymeric nanoparticles (NPs), as it may expand their activities, reduce their toxicity, increase their bioactivity and improve biodistribution.
Tamara Iglesias Alonso
doaj   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

open access: yesFEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

On the calculation of the error of biological assays [PDF]

open access: yesJournal of Hygiene, 1943
It is now realized by a number of workers that the formula which it has been customary to use hitherto for calculating the limits of error of the dose corresponding to a given response (e.g. the median effective dose) or of the result of a biological assay is only approximate.
openaire   +2 more sources

Valosin‐containing protein counteracts ATP‐driven dissolution of FUS condensates through its ATPase activity in vitro

open access: yesFEBS Letters, EarlyView.
Biomolecular condensates formed by fused in sarcoma (FUS) are dissolved by high ATP concentrations yet persist in cells. Using a reconstituted system, we demonstrate that valosin‐containing protein (VCP), an AAA+ ATPase, counteracts ATP‐driven dissolution of FUS condensates through its D2 ATPase activity.
Hitomi Kimura   +2 more
wiley   +1 more source

Toxic Activity of Pyrethroids in Lutzomyia longipalpis (Diptera: Psychodidae) from Magdalena River Basin, Colombia

open access: yesActa Biológica Colombiana, 2019
The study aimed to determine the toxicity of lambda-cyhalothrin, alpha-cypermethrin, and deltamethrin in L. longipalpis, through concentration-mortality bioassays.
Erika Santamaria   +1 more
doaj   +1 more source

Assay of Thiamine in Biologic Fluids

open access: yesClinical Chemistry, 1959
Abstract A method based on the protozoan Ochromonas malhamensis has been developed for assaying thiamine in biologic fluids. It is sensitive, specific and reproducible. Results by this method agree well with other less convenient methods of thiamine assay.
H, BAKER   +5 more
openaire   +2 more sources

Diversity and complexity in neural organoids

open access: yesFEBS Letters, EarlyView.
Neural organoid research aims to expand genetic diversity on one side and increase tissue complexity on the other. Chimeroids integrate multiple donor genomes within single organoids. Self‐organising multi‐identity organoids, exogenous cell seeding, or enforced assembly of region‐specific organoids contribute to tissue complexity.
Ilaria Chiaradia, Madeline A. Lancaster
wiley   +1 more source

Fabrication and In Vitro Biological Assay of Thermo-Mechanically Tuned Chitosan Reinforced Polyurethane Composites. [PDF]

open access: yesMolecules, 2023
Akram N   +7 more
europepmc   +1 more source

Hyperosmotic stress induces PARP1‐mediated HPF1‐dependent mono(ADP‐ribosyl)ation

open access: yesFEBS Letters, EarlyView.
Sorbitol‐induced hyperosmotic stress rapidly induces reversible mono(ADP‐ribosyl)ation (MARylation) on PARP1 without the signs of genotoxic signaling. We show that PARP1 autoMARylation is HPF1 dependent and forms hydroxylamine‐resistant O‐glycosidic linkages.
Anna Georgina Kopasz   +11 more
wiley   +1 more source

Avaliação biológica de soja com baixas atividades de inibidores de tripsina e ausência do inibidor Kunitz

open access: yesArchivos Latinoamericanos de Nutrición, 2001
Cultivar de soja BR 36 com atividades de inibidores de tripsina convencional e linhagem BRM 95-5262, geneticamente modificadas para conter baixas atividades de inibidores de tripsina, contendo 40 e 20 e 30 e 20% de atividades residuais relativa de ...
Edna Mayumi Yuahasi Miura   +4 more
doaj  

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