Results 131 to 140 of about 321,082 (269)

Interplay of two small RNAs fine-tunes hierarchical flagella gene expression in Campylobacter jejuni

open access: yesNature Communications
Like for many bacteria, flagella are crucial for Campylobacter jejuni motility and virulence. Biogenesis of the flagellar machinery requires hierarchical transcription of early, middle (RpoN-dependent), and late (FliA-dependent) genes. However, little is
Fabian König   +2 more
doaj   +1 more source

Decellularized Extracellular Matrix (dECM) in Tendon Regeneration: A Comprehensive Review

open access: yesAdvanced Healthcare Materials, EarlyView.
Decellularized Extracellular Matrix (dECM) offers a promising solution by replicating the native tendon microenvironment and promoting regeneration. This review highlights advances in the decellularization methods, as well as their integration with emerging technologies and translational progress in tendon tissue engineering.
Kumaresan Sakthiabirami   +4 more
wiley   +1 more source

SiO2‐CaOCME/Poly(Tetrahydrofuran)/Poly(Caprolactone) 3D‐Printed Scaffolds Drive Human‐Bone Marrow Stromal Cell Osteogenic Differentiation

open access: yesAdvanced Healthcare Materials, EarlyView.
3D printed hybrid scaffolds combining bioactive silica–calcium chemistry with elastic polymers guide human bone stem cells to form bone. The scaffolds support cell survival, organization, and invasion while releasing osteogenic ions. Together, architecture and composition drive bone‐specific gene expression, extracellular matrix organization, and ...
David R. Sory   +3 more
wiley   +1 more source

Actividad Ribonucleasa en el Látex de Calotropis procera (Aiton) W.T. Aiton y Pedilanthus tithymaloides (L.) Poit / Ribonuclease Activity in Latex from Calotropis procera (Aiton) W.T. Aiton and Pedilanthus tithymaloides (L.) Poit

open access: yesRevista Facultad Nacional de Agronomía Medellín, 2013
Las enzimas ribonucleasas (RNasas) han sido utilizadascon efectividad en el tratamiento de ciertos tipos de cáncer ypueden tener otras propiedades aplicables en biotecnología.
Emma Rueda de Arvelo   +2 more
doaj  

Aptamer‐Based Delivery Systems for VEGF and NGF Modulation in Ocular Therapies

open access: yesAdvanced Healthcare Materials, EarlyView.
Aptamer‐based delivery systems targeting NGF and VEGF hold significant potential for precise and sustained treatment of complex diseases affecting both the anterior and posterior segments of the eye. This review critically summarizes current strategies for NGF and VEGF delivery as well as VEGF sequestration, providing a clinical perspective on how ...
Nadine Best   +5 more
wiley   +1 more source

Aislamiento de péptidos inhibidores de bacterias a partir de bacterias ácido lácticas del tracto digestivo del lechón e identificación mediante prueba proteómica

open access: yesScientia Agropecuaria, 2017
En la alimentación porcina se usan antibióticos los cuales son un riesgo latente para la salud animal y pública. Los microorganismos son adquiridos del entorno durante las diferentes etapas de su vida, algunas bacterias que colonizan y logran ser parte ...
Héctor Sánchez   +4 more
doaj   +2 more sources

Hamster leukemia virus: lack of endogenous DNA synthesis and unique structure of its DNA polymerase [PDF]

open access: yes, 1974
Infectious hamster leukemia virus (HaLV) contains a DNA polymerase different from those of murine and avian viruses. No endogenous reaction directed by the 60 to 70S RNA of HaLV could be demonstrated in detergenttreated HaLV virions, nor could the ...
Baltimore, David   +3 more
core  

Tuning the Testicular Microenvironment for Enhancing Human Sertoli Cells Maturation and Functionality In Vitro

open access: yesAdvanced Healthcare Materials, EarlyView.
An in vitro testicular model is developed by generating connective tissue equivalents from human dermal fibroblast‐derived microtissues and coupling them with human Sertoli cells or human Sertoli cell spheroids. This engineered microenvironment supports Sertoli cell maturation and functionality, providing a promising platform for studying human ...
Annachiara Scalzone   +4 more
wiley   +1 more source

T6SS4 is heterogeneously expressed in Yersinia pseudotuberculosis and is a target for transcriptional and post-transcriptional regulation.

open access: yesPLoS Pathogens
The type VI secretion system (T6SS) is a complex secretion system encoded by many Gram-negative bacteria to translocate effector proteins directly into target cells.
Anna Kerwien   +7 more
doaj   +1 more source

Characterisation of RNase Y in H. pylori: a non-essential enzyme involved in the processing of cag-PAI non coding RNA 1 (CncR1) sRNA

open access: yes, 2023
The importance of Helicobacter pylori as a human pathogen is underlined by the plethora of diseases it is responsible for. The capacity of H. pylori to adapt to the restricted host-associated environment andto evade the host immune response largely depends on a streamlined signalling network. The peculiar H.
openaire   +2 more sources

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