Results 71 to 80 of about 10,097,740 (265)

GM‐CSF Promotes Neutrophil PD‐L1 Expression Through the VEGFR‐2/STAT6/CSF2 Signaling Axis in Oral Squamous Cell Carcinoma

open access: yesAdvanced Science, EarlyView.
VEGFR‐2 signaling in OSCC activates Src–STAT6‐dependent CSF2 transcription, driving tumor‐derived GM‐CSF secretion. GM‐CSF programs neutrophils to express PD‐L1 through STAT5–mTOR/S6K signaling, suppressing cytotoxic CD8+ T cells. This pathway reveals a tumor–neutrophil immune checkpoint circuit that limits anti‐PD‐1 responsiveness in OSCC.
Fangxing Zhu   +13 more
wiley   +1 more source

A Novel Pak1 Activator Ameliorates ER Stress for HFpEF Therapy

open access: yesAdvanced Science, EarlyView.
Chronic metabolic stress is a major contributor to HFpEF progression. Under prolonged metabolic stress, Pak1 activity becomes impaired, contributing to disrupted ER proteostasis, cardiomyocyte apoptosis, fibrosis, and diastolic dysfunction. Mechanistically, Pak1 overexpression activates the ERK1/2–MNK1–eIF4E signaling axis, promotes translational ...
Honglin Xu   +17 more
wiley   +1 more source

Pneumonia Caused by Penicillin-Nonsusceptible Streptococcus Pneumoniae: Clinical Characteristics, Prognostic Factors, and Outcomes

open access: yes, 2009
Background and purpose: Pneumococcal pneumonia caused by penicillin nonsusceptible Streptococcus pneumoniae (PNSSP) is increasing worldwide. To better understand this infection , patients with pneumococcal pneumonia treated at National Taiwan University ...
吳茲端;薛博仁;李麗娜;陸坤泰;楊泮池   +1 more
core  

Copper‐Doped Prussian Blue Nanozymes With Hyaluronic Acid‐Mediated Targeting Alleviate Oxidative Stress and Regulate Cholesterol Handling for Atherosclerosis Therapy

open access: yesAdvanced Science, EarlyView.
CuPB@HA is a CD44‐associated, plaque‐targeted nanozyme that alleviates oxidative stress, inflammation, and lipid accumulation in macrophages. By reducing CD36‐dependent lipid uptake and promoting ABCA1/ABCG1‐mediated cholesterol handling, it improves macrophage function, preferentially accumulates in atherosclerotic lesions, reduces plaque burden, and ...
Jianliang Ou   +14 more
wiley   +1 more source

Advertisment for Penicillin.

open access: yes, 1940
Advertisment during World War II promoting the use of ...

core  

Magneto‐NIR‐II‐Programmed Cascade Nanozymes Unlocking Blood–Brain Barrier Translocation and Autophagic Resistance in Glioblastoma

open access: yesAdvanced Science, EarlyView.
Magneto‐NIR‐II‐programmed NFSH nanozymes integrate magnetic blood–brain barrier (BBB) translocation, CD44 targeting, multimodal imaging, and cascade catalytic therapy for glioblastoma. Alternating magnetic fields and NIR‐II irradiation amplify ferroptosis, release H2S, suppress autophagic and mitophagic repair, and reshape the immune microenvironment ...
Ruocan Liu   +7 more
wiley   +1 more source

Efficacies of BMS 284756 against penicillin-sensitive, penicillin-resistant, and quinolone-resistant pneumococci in experimental meningitis

open access: yes, 2002
BMS 284756 penetrated well into inflamed meninges (44% +/- 11%) and produced good bactericidal activity (-0.82 +/- 0.22 Delta log(10) CFU/ml. h) in the treatment of experimental meningitis in rabbits due to a penicillin-sensitive strain.
Cottagnoud, M   +4 more
core   +1 more source

Machine Learning‐Driven Design of Multicomponent Bone Inorganic Matrix Mimicking Scaffolds for Osteogenesis Enhanced by Neurogenesis

open access: yesAdvanced Science, EarlyView.
Schematic illustration of development of experimental datasets and algorithm models, screening and preparation of the scaffolds and their applications in vivo. ABSTRACT Bone defects require materials with osteogenic, neurogenic, and angiogenic activity, yet designing such materials within high‐dimensional compositional spaces remains challenging. Here,
Kunlu Lin   +9 more
wiley   +1 more source

Characterisation of pneumococcal peptidoglycan cross-linking enzymology [PDF]

open access: yes
Despite the introduction of penicillin, infections caused by Streptococcus pneumoniae are associated with significant morbidity and mortality. As a result, there is an urgent need for successful identification of new drug targets within the organism ...
Shepherd, Jennifer
core  

Solubility studies on the antibiotic penicillin V using supercritical fluids [PDF]

open access: yes, 1989
Supercritical fluid extraction is receiving widespread attention as a possible separation process for the food and pharmaceutical Industries since it can be conducted at near-ambient conditions with non-toxic solvents.
Ko, Min-Jin
core  

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