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Related Concept Videos

Constitutive and Regulated Gene Expression01:27

Constitutive and Regulated Gene Expression

Gene expression in prokaryotes is governed by constitutive and regulated systems, allowing cells to balance the production of essential proteins with adaptive responses to environmental changes.Constitutive Gene ExpressionConstitutive, or housekeeping, genes are continuously expressed as they encode proteins vital for fundamental cellular processes. These include enzymes for glycolysis, ribosomal components for protein synthesis, and proteins involved in DNA replication. Their constant...
Physiology of Urine Formation01:24

Physiology of Urine Formation

Urine formation is an essential function of the human body. It plays a critical role in maintaining homeostasis by regulating the volume and composition of body fluids. The kidneys, the primary organs involved in this process, filter blood to remove waste products and excess substances, ultimately producing urine.
Glomerular Filtration
The first stage in urine formation is glomerular filtration. Each kidney contains approximately 1 million nephrons, the functional units of filtration, with a...
Regulation of Expression at Multiple Steps01:23

Regulation of Expression at Multiple Steps

The gene expression in cells is regulated at different stages: (i) transcription, (ii) RNA processing, (iii) RNA localization, and (iv) translation. Transcriptional regulation is mediated by regulatory proteins such as transcription factors, activators, or repressors—these control gene expression by initiating or inhibiting the transcription of genes. Once a precursor or pre-mRNA is produced, it undergoes post-transcriptional modification, including 5' capping, splicing, and the addition of a...
Regulation of Water Output01:26

Regulation of Water Output

The human body predominantly expels water through the urinary system. On average, an individual generates around 1.5 liters of urine each day. This amount can fluctuate based on how well a person is hydrated, but a critical minimum quantity of urine must be produced to ensure the body's proper functioning. Daily, the kidneys remove 600 to 1200 milliosmoles of dissolved substances, effectively excreting excess minerals and water-soluble toxins such as creatinine, urea, and uric acid from the...
Regulation of Expression Occurs at Multiple Steps02:24

Regulation of Expression Occurs at Multiple Steps

Gene expression can be regulated at almost every step from gene to protein. Transcription is the step that is most commonly regulated. This involves the binding of proteins to short regulatory sequences on the DNA. This association can either promote or inhibit the transcription of a gene associated with the respective sequence.
Transcription results in the generation of precursor (pre-mRNA) that consists of both exons and introns, which needs further processing before being translated to a...
Regulation of Expression Occurs at Multiple Steps02:24

Regulation of Expression Occurs at Multiple Steps

Gene expression can be regulated at almost every step from gene to protein. Transcription is the step that is most commonly regulated. This involves the binding of proteins to short regulatory sequences on the DNA. This association can either promote or inhibit the transcription of a gene associated with the respective sequence.
Transcription results in the generation of precursor (pre-mRNA) that consists of both exons and introns, which needs further processing before being translated to a...

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Related Experiment Video

Updated: Jul 6, 2026

Hepatic Glucose Production, Ureagenesis, and Lipolysis Quantified using the Perfused Mouse Liver Model
06:21

Hepatic Glucose Production, Ureagenesis, and Lipolysis Quantified using the Perfused Mouse Liver Model

Published on: October 6, 2023

[Urate production and regulation].

Takayuki Morisaki1, Hiroko Morisaki

  • 1Department of Bioscience, National Cardiovascular Center Research Institute.

Nihon Rinsho. Japanese Journal of Clinical Medicine
|April 16, 2008
PubMed
Summary

Hyperuricemia stems from imbalanced urate production and excretion. This review explores purine biosynthesis regulation, genetic factors, diet, and novel therapies targeting urate production to manage high uric acid levels.

Area of Science:

  • Biochemistry
  • Metabolic pathways
  • Human physiology

Context:

  • Hyperuricemia is a condition characterized by elevated uric acid levels in the blood.
  • Urate balance is determined by the interplay between its production and excretion.
  • While only 10% of hyperuricemia cases arise from overproduction, purine biosynthesis significantly influences disease development.

Purpose:

  • To elucidate the regulatory mechanisms governing the purine biosynthesis pathway.
  • To discuss the genetic and dietary factors contributing to urate overproduction.
  • To review emerging therapeutic strategies that inhibit urate production.

Summary:

  • This abstract details the regulation of the purine biosynthesis pathway, a key factor in managing uric acid levels.

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Extremely Rapid and Specific Metabolic Labelling of RNA In Vivo with 4-Thiouracil (Ers4tU)

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Related Experiment Videos

Last Updated: Jul 6, 2026

Hepatic Glucose Production, Ureagenesis, and Lipolysis Quantified using the Perfused Mouse Liver Model
06:21

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  • It examines genetic predispositions and dietary influences on urate production.
  • Furthermore, it introduces novel pharmacological approaches aimed at reducing urate synthesis.

    • Impact:

    • Provides a comprehensive overview of purine metabolism in relation to hyperuricemia.
    • Highlights potential targets for therapeutic intervention in managing uric acid levels.
    • Offers insights into the pathogenesis of hyperuricemia for researchers and clinicians.