Results 11 to 20 of about 618,626 (288)

Ca2+ signals co-ordinate zygotic polarization and cell cycle progression in the brown alga, Fucus serratus. [PDF]

open access: yes, 2008
Zygotes of the fucoid brown algae provide excellent models for addressing fundamental questions about zygotic symmetry breaking. Although the acquisition of polarity is tightly coordinated with the timing and orientation of the first asymmetric division ...
Bothwell, John H. F.   +4 more
core   +5 more sources

Kinetic Study of CaCO3 Precipitation Accelerated by High Voltage Impulse

open access: yes대한환경공학회지, 2021
Objectives : Determination of reaction order (n) and rate constants (k) of the CaCO3 scale formation reaction that was accelerated by the HVI (high voltage impulse) induction. Methods : HVI was inducted to the synthetic solution containing 2.5 mM of Ca2+
Damha Kim, In-Soung Chang
doaj   +1 more source

Mechanism of annexin A6 promoting differentiation and development of neural progenitor cells into oligodendrocytes

open access: yesDi-san junyi daxue xuebao, 2021
Objective To explore the mechanism of annexin A6 (AnxA6) regulating neural progenitor cells (NPCs) to differentiate into oligodendrocytes (OLs). Methods AnxA6 gene knockout and AnxA6 overexpression viral vectors were constructed in freshly isolated and ...
LE Yifan   +4 more
doaj   +1 more source

The Response of Physarum polycephalum to Extracellular Ca2+: Studies on Ca2+ Nutrition, Ca2+ Fluxes and Ca2+ Compartmentation [PDF]

open access: yesJournal of General Microbiology, 1979
Summary: The calcium requirement for optimal growth of Physarum polycephalum is between 0.05 and 2.5 mM. Media without Ca2+ will not support growth though Ca2+-chelating agents, such as EDTA and EGTA, do not have any marked effect on Ca2+ availability at the low pH used to culture this organism. The intracellular Ca2+ concentration varies approximately
R. P. HOLMES, P. R. STEWART
openaire   +1 more source

Relationship between Ca2+ and cAMP as second messengers in ACTH-induced cortisol production in bovine adrenal fasciculata cells

open access: yesEndocrine Journal, 2023
In adrenal fasciculata cells stimulated by ACTH, Ca2+ and cAMP play indispensable roles as second messengers in cortisol production. However, whether their second messengers cooperatively or independently participate in steroid production remains unclear.
Masahiko Kutsukake   +6 more
doaj   +1 more source

Effects of Monovalent and Divalent Cations on Ca2+ Fluxes Across Chromaffin Secretory Membrane Vesicles [PDF]

open access: yes, 1983
: Bovine chromaffin secretory vesicle ghosts loaded with Na+ were found to take up Ca2+ when incubated in K+ media or in sucrose media containing micromolar concentrations of free Ca2+. Li+- or choline+loaded ghosts did not take up Ca2+.
Gratzl, Manfred, Krieger-Brauer, H.
core   +1 more source

CO2 introduced the coagulation-flocculation of oil acidized wastewater: pollutant removal and cost analysis

open access: yesWater Science and Technology, 2021
It is difficult to adjust the pH of oil acidized wastewater rich in Ca2+, thus hindering the polyacrylamide (PAM) flocculation. This study aims at accelerating the flocculation process by introducing CO2 into the water to induce the formation of CaCO3 ...
Jinyi Qin   +6 more
doaj   +1 more source

Ca2+-dependent Transcriptional Control of Ca2+ Homeostasis [PDF]

open access: yesJournal of Biological Chemistry, 2012
Intracellular free Ca(2+) ions regulate many cellular functions, and in turn, the cell devotes many genes/proteins to keep tight control of the level of intracellular free Ca(2+). Here, we review recent work on Ca(2+)-dependent mechanisms and effectors that regulate the transcription of genes encoding proteins involved in the maintenance of the ...
Jose R, Naranjo, Britt, Mellström
openaire   +2 more sources

ER localized bestrophin1 activates Ca2+ dependent ion channels TMEM16A and SK4 [PDF]

open access: yes, 2009
Bestrophins form Ca2+ activated Cl- channels and regulate intercellular Ca2+ signaling1. We demonstrate that bestrophin 1 is localized in the endoplasmic reticulum (ER), where it physically interacts with stromal interacting molecule 1 (Stim1), the ER ...
Rainer Schreiber   +13 more
core   +1 more source

CALIX[4]ARENE C-715 MODULATES MITOCHONDRIAL FUNCTIONING AND CONTRACTILE ACTIVITY OF UTERINE SMOOTH MUSCLE [PDF]

open access: yesBiotechnologia Acta
Aim. To elucidate the effects of calix[4]arene C-715 on the contractile activity of myometrial strips and the Ca2+-dependent functional activity of mitochondria. Materials and Methods.
I.S. Forys   +5 more
doaj   +1 more source

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