Comparison of serum lipid parameters and serum vitamin B12 levels

Interlaboratory comparison of serum vitamin B12 assay.

The results have been compared of microbiological and radioisotope dilution (RID) assay of serum vitamin B12 by participants in national interlaboratory trials in Britain. There was wide variation between the individual participants, especially marked in the L. leichmannii microbiological assay and in the RID methods, whereas excellent correlation, reproducibility, and recovery were obtained in...

The relationship between serum vitamin D and vitamin B12 levels and diabetic peripheral neuropathy

Abstract Objective: Diabetic peripheral neuropathy (DPN) is one of the most common complications of diabetes. Beside the known factors such as hyperglycemia in the pathogenesis of this complication, other etiologies may play role in the pathogenesis of this complication. The aim of this study was the evaluation of the role of serum vitamin D and vitamin B12 levels in this process. Material a...

Effect of Light on Serum Vitamin B12 and Folate Levels [Işığın Serum Vitamin B12 ve Folat Düzeyleri Üzerine Etkisi]

There is few information on the effect of light on serum vitamin B12 and folate measurements in the literature. Additionally, different kits and instrument systems for the measurement of these analytes can be affected by light in a different way. In this study, we aimed to investigate the effect of light on these analytes. Blood specimens were collected from 11 healthy volunteers in 16*100 mm V...

Serum folic-acid and vitamin-B12 levels in anticonvulsant therapy.

Serum Levels of Homocysteine, Vitamin B12, and Folic Acid in Patients with Alzheimer’s Disease

Background: Alzheimer's disease is the most common form of dementia in the elderly. Serum levels of homocysteine have been related to increased cortical and hippocampal atrophy. We aimed to determine the serum levels of homocysteine, folate, and vitamin B12 in patients with Alzheimer's disease. Methods: Blood levels of homocysteine and its biological determinants, folate, and vitamin B12 were m...