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Evaluation of Planar-Cell-Polarity Phenotypes in Ciliopathy Mouse Mutant Cochlea
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Hyperhomocysteinemia, MMPs and Cochlear Function: A Short Review

Seema Bhargava1, Meghaa Shanta Bhargava2, Eishaan Kamta Bhargava3

  • 1Department of Biochemistry, Sir Ganga Ram Hospital, New Delhi, India.

Indian Journal of Clinical Biochemistry : IJCB
|April 13, 2016
PubMed

Insights

Hyperhomocysteinemia damages the inner ear by altering matrix metalloproteinases (MMPs) and tissue inhibitors of metalloproteinases (TIMPs). Targeting these MMPs/TIMPs may prevent hearing loss from hyperhomocysteinemia, infections, or ototoxic drugs.

Area of Science:

  • Oto-science
  • Biochemistry
  • Pathology

Background:

  • Hyperhomocysteinemia (HHCY) is linked to cochlear microvasculature and epithelial cell damage.
  • HHCY alters the expression of matrix metalloproteinases (MMPs) and tissue inhibitors of metalloproteinases (TIMPs) in the cochlea.

Purpose of the Study:

  • To investigate the role of MMPs and TIMPs in HHCY-induced ototoxicity.
  • To explore the potential for MMP inhibition in preventing hearing loss.

Main Methods:

  • Analysis of MMP and TIMP expression in the cochlea under HHCY conditions.
  • Comparative study of pathological mechanisms in HHCY, infections, and ototoxicity.

Main Results:

  • HHCY significantly alters the balance of MMPs and TIMPs within the cochlea.
  • The findings suggest a common pathway for cochlear damage in HHCY, infections, and ototoxic drug exposure.

Conclusions:

  • Determining optimal MMP and TIMP concentrations is crucial for mitigating HHCY-related hearing loss.
  • MMP inhibitors show promise in preventing cochlear damage caused by HHCY, infections, and ototoxic agents.
Keywords:
CochleaHearing lossHyperhomocysteinemiaMMPsTIMPs

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