Results 81 to 90 of about 2,565,113 (352)

An Overview of Current Knowledge on in vitro Babesia Cultivation for Production of Live Attenuated Vaccines for Bovine Babesiosis in Mexico

open access: yesFrontiers in Veterinary Science, 2020
The instrumentation of the in vitro culture system has allowed researchers to learn more about the metabolic and growth behavior of Babesia spp. The various applications for in vitro cultivation of Babesia include obtaining attenuated strains for ...
J. Álvarez, C. Rojas, Julio V. Figueroa
semanticscholar   +1 more source

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

open access: yesFEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka   +11 more
wiley   +1 more source

Decreased expression of caveolin 1 in patients with systemic sclerosis: crucial role in the pathogenesis of tissue fibrosis. [PDF]

open access: yes, 2008
OBJECTIVE: Recent studies have implicated caveolin 1 in the regulation of transforming growth factor beta (TGFbeta) downstream signaling. Given the crucial role of TGFbeta in the pathogenesis of systemic sclerosis (SSc), we sought to determine whether ...
de Almeida, Cecilia J.   +6 more
core   +2 more sources

TSH Receptor Homodimerization in Regulation of cAMP Production in Human Thyrocytes in vitro

open access: yesFrontiers in Endocrinology, 2020
Thyrotropin hormone (TSH) was reported to exhibit biphasic regulation of cAMP production in human thyroid slices; specifically, upregulation at low TSH doses transitioning to inhibition at high doses.
Alisa Boutin   +5 more
semanticscholar   +1 more source

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

open access: yesFEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li   +2 more
wiley   +1 more source

Association between genotypic diversity and biofilm production in group B Streptococcus [PDF]

open access: yes, 2016
Background: Group B Streptococcus (GBS) is a leading cause of sepsis and meningitis and an important factor in premature and stillbirths. Biofilm production has been suggested to be important for GBS pathogenesis alongside many other elements ...
Davies, H. Dele   +5 more
core   +2 more sources

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

open access: yesFEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee   +3 more
wiley   +1 more source

Structural biology of ferritin nanocages

open access: yesFEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Effect of 7,8-Dihydroxyflavone on In Vitro Maturation of Oocytes in Pigs

open access: yesJournal of Animal Reproduction and Biotechnology, 2014
In porcine embryo culture, one of reactive oxygen species (ROS) is harmful factors that are made during in vitro culture. To decrease the detrimental effect of ROS on embryo development, superoxide dismutase, catalase and glutathione peroxidase could be ...
Seung-Kyu Oh   +4 more
doaj   +1 more source

In vitro production of porcine embryos with use of chemically semi-defined culture media system

open access: yesRevista Mexicana de Ciencias Pecuarias, 2020
The objective of this study was to determine the effect of a semi-defined culture media system developed in laboratory, named Pigs Media System (PMS) on the in vitro production of porcine embryos.
David Urbán Duarte   +3 more
doaj   +1 more source

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