Results 81 to 90 of about 377,298 (310)

Identification of senescence and death in Emiliania huxleyi and Thalassiosira pseudonana: Cell staining, chlorophyll alterations, and dimethylsulfoniopropionate (DMSP) metabolism

, 2012
We measured membrane permeability, hydrolytic enzyme, and caspase-like activities using fluorescent cell stains to document changes caused by nutrient exhaustion in the coccolithophore Emiliania huxleyi and the diatom Thalassiosira pseudonana, during ...
Berges, John A., Bongaerts, Roy J., Fernandes, Michelle, Berges, JA, Berges, J.A., Malin, G, Bongaerts, R.J., Malin, Gill, Fernandes, M., Malin, G., Airs, R.L., Bell, T.G., Bongaerts, RJ, Airs, Ruth L., Bell, Thomas G., Franklin, Daniel J., Airs, RL, Franklin, D, Fernandes, M, Bell, TG   +19 more
core   +1 more source

UiO‐66 metal–organic frameworks in biomedicine: From structural tunability to bioimaging, photodiagnostics, and photodynamic cancer therapy

FEBS Open Bio, EarlyView.
UiO‐66(Zr) metal–organic frameworks are chemically stable, biocompatible, and highly tunable nanomaterials. Their modular structure enables controlled drug delivery, multimodal bioimaging, and light‐activated photodynamic therapy, supporting integrated diagnostic and therapeutic (theranostic) applications in cancer and biomedical research.
Veronika Huntošová, Grigorii Rakhalskii, Miroslav Almáši   +2 more
wiley   +1 more source

Antibacterial Activity of Bifidobacterium breve Against Clostridioides difficile

Frontiers in Cellular and Infection Microbiology, 2019
Bifidobacterium breve (YH68) is widely used in the fields of food fermentation and biomedicine. In this study, we explored the antibacterial activity of the cell free culture supernatant (CFCS) of YH68 against Clostridioides difficile ATCC 9689 (CD) by ...
Jingpeng Yang, Hong Yang
doaj   +1 more source

Epoxysuccinyl peptide-derived cathepsin B inhibitors: Modulating membrane permeability by conjugation with the C-terminal heptapeptide segment of penetratin [PDF]

, 2002
Schaschke N, Deluca D, Assfalg-Machleidt I, Hohneke C, Sommerhoff CP, Machleidt W. Epoxysuccinyl peptide-derived cathepsin B inhibitors: Modulating membrane permeability by conjugation with the C-terminal heptapeptide segment of penetratin.
Schaschke, Norbert, Assfalg-Machleidt, Irmgard, Schaschke, N., Deluca, D, Sommerhoff, C. P., Höhneke, C., Sommerhoff, CP, Machleidt, W., Assfalg-Machleidt, I, Machleidt, Werner, Deluca, D., Deluca, Dominga, Sommerhoff, Christian P., Assfalg-Machleidt, I., Hohneke, C, Höhneke, Clara, Machleidt, W   +16 more
core   +1 more source

Hydrostatic pressure activates HIF‐1α via β‐catenin to promote stemness in breast cancer cells

FEBS Open Bio, EarlyView.
To mimic the elevated intestinal fluid pressure in breast cancers, we loaded human breast cancer cells (MCF‐7, MDA‐MB‐453, and BT‐474) to 50 mmHg hydrostatic pressure. Hydrostatic pressure exposure upregulated HIF‐1α and induced stemness in MCF‐7 and BT‐474 cells.
Da Zhai, Yong Xu, Jingjing Ma, Ratchanee Duangrat, Chen Yan, Jingyan Liang, Hua Wei, Bin Jiang, Tao‐Sheng Li   +8 more
wiley   +1 more source

CHARACTERISTIC OF RESISTANCE OF ERYTHROCYTES IN CARDIOSURGICAL PATIENTS WITH VARIOUS DEGREE OF MANIFESTATION OF POSTPERFUSION HEMOLYSIS

Бюллетень сибирской медицины, 2013
The resistance of red cells to the mechanic, osmotic, and acid factors, as well as the permeability of red-cell membrane to low-molecular hydrophilic substances in patients with ischemic heart disease (IHD) with moderate (24 patients) and pronounced (13 ...
I. V. Maltseva
doaj   +1 more source

Lens Cell Membrane Permeability and Cataract Formation.

Experimental Biology and Medicine, 1964
SummaryAnalyses of rat lenses just before and just after the appearance of diabetic or galactose cataracts demonstrate that this event is accompanied by an abrupt disruption of the cell membranes of the lens. The concentrations of polyol, glucose and fructose in the lens approach those in the blood; and the extracellular space as determined with ...
J W, PATTERSON, K W, BUNTING
openaire   +2 more sources

Ultrashort electric pulse induced changes in cellular dielectric properties

, 2007
The interaction of nanosecond duration pulsed electric fields (nsPEFs) with biological cells, and the models describing this behavior, depend critically on the electrical properties of the cells being pulsed.
Kolb, J K, Joshi, R P, Sridhara, V, Viswanadham Sridhara, Swanson, R J, Stephen J. Beebe, R. James Swanson, Chen, George, Schoenbach, K H, Juergen F. Kolb, Karl H. Schoenbach, Allen L. Garner, Ravindra P. Joshi, Garner, Allen, Chen, N, George Chen, Beebe, S J, Nianyong Chen   +17 more
core   +1 more source

Aquaporin‐3 and aquaporin‐5 impact the development of pancreatic ductal adenocarcinoma spheroids

FEBS Open Bio, EarlyView.
Schematic representation of the role of aquaporin‐3 (AQP3) and aquaporin‐5 (AQP5) in pancreatic ductal adenocarcinoma (PDAC). Both proteins are upregulated in PDAC and are associated with tumor progression and metastatic potential. Silencing AQP3 or AQP5 in PDAC spheroids results in decreased diameter, area, and overall growth, underscoring their key ...
Catarina Pimpão, Diogo M. Engrácia, Graça Soveral, Filipa Mendes   +3 more
wiley   +1 more source

Effect of MA01 rhamnolipid on cell viability and expression of quorum-sensing (QS) genes involved in biofilm formation by methicillin-resistant Staphylococcus aureus

Scientific Reports, 2022
A group of biosurfactants, called rhamnolipids, have been shown to have antibacterial and antibiofilm activity against multidrug-resistant bacteria. Here, we examined the effect of rhamnolipid biosurfactants extracted from Pseudomonas aeruginosa MA01 on ...
Fatemeh Saadati, Shahab Shahryari, Naeema Mohseni Sani, Davoud Farajzadeh, Hossein Shahbani Zahiri, Hojatollah Vali, Kambiz Akbari Noghabi   +6 more
doaj   +1 more source