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Related Concept Videos

Phosphate Buffer01:22

Phosphate Buffer

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The phosphate buffer system is a critical biological mechanism for maintaining pH stability in the body. This system operates primarily through two components: sodium dihydrogen phosphate (NaH2PO4), which acts as a weak acid, and sodium hydrogen phosphate (Na2HPO4), which serves as a weak base.
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Roles of Electrolytes: Calcium and Phosphate01:27

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Calcium and phosphate are essential electrolytes in the human body, with calcium being the most abundant mineral. Around 99% of the body's calcium is stored in the skeleton and teeth, forming a crystal lattice of mineral salts in combination with phosphates. Calcium plays crucial roles in various bodily functions such as blood clotting, neurotransmitter release, muscle tone maintenance, and nervous and muscle tissue excitability.
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Energy-requiring Steps of Glycolysis01:20

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Glucose is the source of nearly all energy used by organisms. The first step of converting glucose into usable energy is called glycolysis. Glycolysis occurs in the cytosol of the cell over two phases: an energy-requiring phase and an energy-releasing phase. Over the first three steps, glucose is converted into different forms and attached to two phosphate groups donated by two ATP molecules, resulting in an unstable sugar. In the next two stages, the unstable sugar splits into two sugar...
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Protein Kinases and Phosphatases02:54

Protein Kinases and Phosphatases

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Proteins undergo chemical modifications that trigger changes in the charge, structure, and conformation of the proteins. Phosphorylation, acetylation, glycosylation, nitrosylation, ubiquitination, lipidation, methylation, and proteolysis are various protein modifications that regulate protein activity. Such modifications are usually enzyme-driven.
Protein kinases
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Hydrolysis of ATP01:08

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The bonds of adenosine triphosphate (ATP) can be broken through the addition of water, releasing one or two phosphate groups in an exergonic process called hydrolysis. This reaction liberates the energy in the bonds for use in the cell—for instance, to synthesize proteins from amino acids.
If one phosphate group is removed, a molecule of ADP—adenosine diphosphate—remains, along with inorganic phosphate. ADP can be further hydrolyzed to AMP—adenosine...
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Energy-releasing Steps of Glycolysis01:28

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Glycolysis is divided into two phases based on whether energy is utilized or released. While the first phase consumes ATP, the second phase produces energy in the form of ATP and NADH. The energy is released over a sequence of reactions that turns G3P into pyruvate. The energy-releasing phase—steps 6-10 of glycolysis—occurs twice, once for each of the two 3-carbon sugars produced during steps 1-5 of the first phase.
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The phosphate bucket list.

Tamara Isakova1, Geoffrey Block2

  • 1Division of Nephrology and Hypertension, Department of Medicine and Center for Translational Metabolism and Health, Institute for Public Health and Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA.

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Summary
This summary is machine-generated.

Understanding phosphate homeostasis is complex, but new research on circadian rhythms of phosphate offers insights. These findings may lead to future therapeutic strategies for phosphate regulation.

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Area of Science:

  • Physiology
  • Endocrinology
  • Chronobiology

Background:

  • Phosphate homeostasis is crucial for numerous cellular functions.
  • Despite advances, significant questions remain regarding phosphate regulation.
  • Circadian rhythms influence various physiological processes, including mineral metabolism.

Purpose of the Study:

  • To highlight the importance of circadian rhythms in phosphate homeostasis.
  • To illustrate how basic research can inform future therapeutic development.
  • To discuss the potential of targeting circadian pathways for phosphate-related disorders.

Main Methods:

  • Review of recent findings on circadian regulation of phosphate.
  • Analysis of studies examining plasma and urinary phosphate rhythms.
  • Commentary on the implications for therapeutic interventions.

Main Results:

  • Circadian mechanisms significantly impact plasma and urinary phosphate levels.
  • Basic research on circadian phosphate rhythms reveals novel regulatory pathways.
  • These pathways represent potential targets for future drug development.

Conclusions:

  • Continued investigation into phosphate homeostasis, particularly its circadian regulation, is essential.
  • Understanding these rhythms can unlock new therapeutic avenues.
  • The interplay between circadian biology and phosphate metabolism holds promise for treating metabolic diseases.