Results 121 to 130 of about 523,087 (393)

Regulation of bicarbonate secretion in marine fish intestine by the calcium-sensing receptor [PDF]

open access: yes, 2018
In marine fish, high epithelial intestinal HCO3- secretion generates luminal carbonate precipitates of divalent cations that play a key role in water and ion homeostasis.
Fuentes, Juan, Gregorio, Silvia
core   +2 more sources

Cu2O/Cu Chiral Catalysts for Highly Selective Solar‐Assisted CO2‐to‐CO Electroreduction

open access: yesAdvanced Functional Materials, EarlyView.
To address the poor target‐product selectivity of the eCO2RR, breakthrough approaches based on the chiral‐induced spin selectivity phenomenon enhance the Faradaic efficiency (FE) for target hydrocarbons, such as CO. To induce this spin polarization strategy in Cu2O/Cu catalysts, it is proposed using amine‐based intermediate organic molecules with ...
Hyungsoo Lee   +13 more
wiley   +1 more source

Bicarbonate and Ca2+ sensing modulators activate photoreceptor ROS-GC1 synergistically

open access: yesFrontiers in Molecular Neuroscience, 2016
Photoreceptor ROS-GC1, a prototype subfamily member of the membrane guanylate cyclase family, is a central component of phototransduction. It is a single transmembrane-spanning protein, composed of modular blocks.
Teresa eDuda   +3 more
doaj   +1 more source

The Role of Bile in the Regulation of Exocrine Pancreatic Secretion [PDF]

open access: yes, 1992
As early as 1926 Mellanby (1) was able to show that introduction of bile into the duodenum of anesthetized cats produces a copious flow of pancreatic juice.
Adamczyk W   +75 more
core   +1 more source

Biomass Native Structure Into Functional Carbon‐Based Catalysts for Fenton‐Like Reactions

open access: yesAdvanced Functional Materials, EarlyView.
This study indicates that eight biomasses with 2D flaky and 1D acicular structures influence surface O types, morphology, defects, N doping, sp2 C, and Co nanoparticles loading in three series of carbon, N‐doped carbon, and cobalt/graphitic carbon. This work identifies how these structural factors impact catalytic pathways, enhancing selective electron
Wenjie Tian   +7 more
wiley   +1 more source

Calcium-sensor proteins but not bicarbonate ion activate retinal photoreceptor membrane guanylyl cyclase in photoreceptors

open access: yesFrontiers in Molecular Neuroscience
Retinal membrane guanylyl cyclase (RetGC), regulated by guanylyl cyclase activating proteins (GCAPs) via negative calcium-feedback, is one of the most critically important enzymes in vertebrate rod and cone physiology, enabling their sensitivity to light.
Igor V. Peshenko   +3 more
doaj   +1 more source

Bicarbonate transporters in corals point towards a key step in the evolution of cnidarian calcification

open access: yesScientific Reports, 2015
The bicarbonate ion (HCO3−) is involved in two major physiological processes in corals, biomineralization and photosynthesis, yet no molecular data on bicarbonate transporters are available.
D. Zoccola   +10 more
semanticscholar   +1 more source

Biomaterial Strategies for Targeted Intracellular Delivery to Phagocytes

open access: yesAdvanced Functional Materials, EarlyView.
Phagocytes are essential to a functional immune system, and their behavior defines disease outcomes. Engineered particles offer a strategic opportunity to target phagocytes, harnessing inflammatory modulation in disease. By tuning features like size, shape, and surface, these systems can modulate immune responses and improve targeted treatment for a ...
Kaitlyn E. Woodworth   +2 more
wiley   +1 more source

On the substrate turnover rate of NBCe1 and AE1 SLC4 transporters: structure-function considerations

open access: yesFrontiers in Physiology
A transport protein’s turnover rate (TOR) is the maximum rate of substrate translocation under saturating conditions. This parameter represents the number of transporting events per transporter molecule (assuming a single transport site) per second (s ...
Alexander Pushkin   +8 more
doaj   +1 more source

Pseudohypoaldosteronism type 1 due to novel variants of SCNN1B gene. [PDF]

open access: yes, 2016
UnlabelledAutosomal recessive pseudohypoaldosteronism type 1 (PHA1) is a rare disorder characterized by sodium wasting, failure to thrive, hyperkalemia, hypovolemia and metabolic acidosis.
Abraham, Smita B   +9 more
core   +2 more sources

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