Results 111 to 120 of about 209,741 (306)
Acta Agronómica, 2012 Cattleya mendelii es una orquídea endémica de Colombia de gran valor ornamental que se encuentra en peligro de extinción a causa de la recolección masiva y a la destrucción de sus hábitats naturales por la acción antrópica.
Seir Antonio Salazar-Mercado
doaj
Adaptation of the tetrazolium test for assessing the seed quality of Crateva tapia L. [PDF]
Journal of Seed Science: In the seed sector, demand for quick decisions is growing, especially for slow-germinating species such as Crateva tapia L., so the tetrazolium test stands out as a method capable of evaluating seed viability and vigor.
Marília Hortência Batista Silva Rodrigues +5 more
doaj +1 more source
Natural Aging of Biomaterials in Ambient and Physiological Environments
Advanced NanoBiomed Research, EarlyView.Biomaterials used in biomedical applications can change their physical properties over time, even under ambient and physiological conditions. This review highlights key studies on the natural aging of materials ranging from soft hydrogels to metals and ceramics, emphasizing how time‐dependent changes influence function and performance.
Shuyu Zhang, Anne E. Staples
wiley +1 more source
Methodological adjustments to the tetrazolium test in rice seeds
Journal of Seed Science: Reducing the execution time of the tetrazolium test is important because it is used for making decisions during the preharvest and this test takes approximately 24 h. Thus, the goal of this research was to study preconditioning and staining periods and
Ireni Leitzke Carvalho +4 more
doaj +1 more source
Advanced NanoBiomed Research, EarlyView.Using a 3D cell culture model of the fibrotic barrier in pancreatic cancer, this work shows that inhibiting NUAK2 kinase in pancreatic stellate cells enhances macromolecular drug delivery. Mechanistically, NUAK2 inhibition disrupted actin stress fiber assembly to downregulate collagen I expression, thus enhancing macromolecular permeability.
Misaki Nakamura +14 more
wiley +1 more source
Revista Colombiana de Biotecnología, 2012 Título en ingles: Evaluation of the effects of two organics supplements on in vitro germination of native orchids in the province of Pamplona, Colombia Resumen: La continua pérdida de hábitat de las orquídeas nativas en Colombia, y las limitaciones de ...
Seir Antonio Salazar Mercado +1 more
doaj
Viability of Libidibia ferrea (Mart. ex Tul.) L.P. Queiroz var. ferrea) seeds by tetrazolium test
Journal of Seed Science: Rapid tests have been essential to evaluate the physiological potential of seeds and the tetrazolium test is one of those which have been used by seed companies.
Sara Monaliza Costa Carvalho +5 more
doaj +1 more source
Advanced NanoBiomed Research, EarlyView.Redox responsive mesoporous silica nanoparticles (MSNs) were engineered to deliver gemcitabine (Gem) and cisplatin (cisPt) at defined ratios to overcome chemoresistance in pancreatic ductal adenocarcinoma (PDAC). Optimized Gem MSNs and Gem cisPt MSNs enhanced cytotoxicity in murine and human Gem resistant models, with select formulations inducing ...
Tamanna Binte Huq +5 more
wiley +1 more source
Animal Research and One Health, EarlyView.Myo‐inositol alleviates oxidative stress in dairy cow mammary epithelial cells via the Sirt5/Nrf2 pathway to promote mitochondrial fusion. This graphical abstract was created with BioRender.com. ABSTRACT High‐yielding dairy cows are susceptible to mammary gland oxidative stress due to prolonged intensive lactation, leading to redox imbalance.
Yufei Zhang +8 more
wiley +1 more source
Integrins engage mitochondrial function for signal transduction by a mechanism dependent on Rho GTPases. [PDF]
, 2002 We show here the transient activation of the small GTPase Rac, followed by a rise in reactive oxygen species (ROS), as necessary early steps in a signal transduction cascade that lead to NFkappaB activation and collagenase-1 (CL-1)/matrix ...
Werb, Zena, Werner, Erica
core