title: LDIflare small fiber function in normal glucose tolerant subjects with and without hypertriglyceridemia.
abstract: BACKGROUND
  We explored determinants of small fiber function (SFF) in normoglycemic individuals to determine influence of metabolic parameters, including triglyceride (TG) levels.
  
  
  METHODS
  Dorsal foot SFF was assessed by the LDIflare method in 79 individuals without clinical neuropathy, including 43 controls (HC, <1.7 mmol/L), 17 with mild hypertriglyceridemia (MiTG, 1.7-2.25), and 19 with significant hypertriglyceridemia (HiTG, >2.25 mmol/L).
  
  
  RESULTS
  LDIflare was significantly smaller in HiTG compared with HC (4.4 ± 1.4 vs. 9.3 ± 2.9 cm(2) ; P < 0.0001) and compared with the MiTG (4.4 ± 1.4 vs. 7.0 ± 2.1; P < 0.0001). Over all, an inverse correlation existed between LDIflare and age (-0.42; P < 0.0001), weight (r = -0.37; P = 0.004), body mass index (BMI) (-0.51; P < 0.0001), Log10 triglycerides (r = -0.66; P < 0.0001), total cholesterol (r = -0.26; P = 0.02), and TC/HDL ratio (r = -0.40; P = 0.002). In multivariate regression analysis, Log10 triglycerides (P < 0.0001) and age (P = 0.003) were the only independent predictors.
  
  
  CONCLUSIONS
  There is an inverse correlation between small fiber function and triglycerides in normoglycemic individuals and abnormal SFF in normoglycemic hypertriglyceridemia. Larger prospective studies are required to confirm these findings and to determine whether reduced SFF heralds later clinical neuropathy.
authors.affiliation: Ipswich Diabetes Centre, Heath Road, Ipswich, Suffolk, IP4 5PD, United Kingdom.
authors.forename: Prashanth Rj
authors.initials: PR
authors.lastname: Vas
authors.affiliation: Ipswich Diabetes Centre, Heath Road, Ipswich, Suffolk, IP4 5PD, United Kingdom.
authors.forename: Sanjeev
authors.initials: S
authors.lastname: Sharma
authors.affiliation: Ipswich Diabetes Centre, Heath Road, Ipswich, Suffolk, IP4 5PD, United Kingdom.
authors.forename: Gerry
authors.initials: G
authors.lastname: Rayman
mesh_terms: D000367:Age Factors; D000368:Aged; D000704:Analysis of Variance; D001786:Blood Glucose / Q000378:metabolism*; D015992:Body Mass Index; D016022:Case-Control Studies; D015331:Cohort Studies; D003943:Diagnostic Techniques, Neurological; D005260:Female; D006801:Humans; D015228:Hypertriglyceridemia / Q000097:blood* / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D009412:Nerve Fibers / Q000502:physiology*; D012044:Regression Analysis; D014280:Triglycerides / Q000097:blood*
chemical_list: D001786:Blood Glucose; D014280:Triglycerides
keywords: LDIflare; diabetic neuropathy; etiopathogenesis; neuropathy in hypertriglyceridemia; small fiber neuropathy