Document Detail

Comparative analysis of serum homocysteine, folic acid and Vitamin B12 levels in patients with noise-induced hearing loss.
MedLine Citation:
PMID:  15041049     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: The aim of the present study was to determine the levels of homocysteine, folic acid, and Vitamin B12 in subjects with noise-induced hearing loss. Furthermore, possible links between these parameters and noise-induced hearing loss were aimed to be evaluated. METHODS: In the present study, blood samples were obtained from all subjects after overnight fasting for biochemical analysis. We examined the levels of homocysteine, Vitamin B12 and folic acid levels in subjects with noise-induced hearing loss. Twenty-eight male patients with noise-induced hearing loss (mean age 37 +/- 5 year) were included in the study group whereas the control group was composed of 32 healthy male volunteers (mean age 36 +/- 4 year). RESULTS: It was found that homocysteine levels of subjects with noise-induced hearing loss as significantly high compared to healthy controls (P < 0.05). On the other hand, Vitamin B12 and folic acid levels of patients with noise-induced hearing loss were determined to be significantly low compared to the controls (P < 0.05 and < 0.01, respectively). CONCLUSION: Our findings indicate that there might be a link between increased homocysteine levels and noise-induced hearing loss. Since increased homocysteine levels cause elevated levels of free radicals in addition to its atherogenic and thrombogenic effects. Further experimental studies are needed to decipher how this relationship is linked.
Uzeyir Gok; Ihsan Halifeoglu; Halit Canatan; Mucahit Yildiz; M Ferit Gursu; Biray Gur
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Auris, nasus, larynx     Volume:  31     ISSN:  0385-8146     ISO Abbreviation:  Auris Nasus Larynx     Publication Date:  2004 Mar 
Date Detail:
Created Date:  2004-03-25     Completed Date:  2004-10-14     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  7708170     Medline TA:  Auris Nasus Larynx     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  19-22     Citation Subset:  IM    
Department of Otorhinolaryngology, College of Medicine, Firat University, Elazig 23119, Turkey.
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MeSH Terms
Audiometry, Pure-Tone
Case-Control Studies
Folic Acid / blood*
Hearing Loss, Noise-Induced / blood,  etiology*
Homocysteine / blood*
Vitamin B 12 / blood*
Reg. No./Substance:
454-28-4/Homocysteine; 59-30-3/Folic Acid; 68-19-9/Vitamin B 12

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