title: The relationship between total mass and blood supply of parathyroid glands and their secretion of parathyroid hormone in hemodialysis patients with secondary hyperparathyroidism.
abstract: Characteristics of parathyroid glands usually determined by ultrasonography such as its total weight or volume might be a good indicator for the induction or suppression of parathyroid hormone (PTH) secretion from these glands. In the present study, we investigated the relationship between the volume and blood supply grade of the parathyroid glands, and its PTH secretion. Study subjects included 52 consecutive patients with the secondary hyperparathyroidism undergoing maintenance hemodialysis therapy referred to dialysis wards of the Imam Khomeini and Amiralam University Hospitals in Tehran. Serum intact PTH (i-PTH) was measured by an ELISA assay. The parathyroid glands characteristics were identified by ultrasonography that was performed simultaneously with blood collection. Parathyroid blood flows were evaluated by power-Doppler color imaging. There was no significant correlation between the total mass of the glands and serum concentration of i-PTH. No significant correlations were also observed between both total central and peripheral parathyroid glands blood flow and serum i-PTH level. Dialysis duration and serum alkaline phosphatase were significantly correlated in a positive manner with i-PTH level. Furthermore, serum level of i-PTH was not correlated with the total signals of glands blood flow in a multivariable linear regression analysis. Serum secreted i-PTH level might not be predictable by a total mass of parathyroid glands as well as their blood supply.
authors.affiliation: Nephrology Research Center, Tehran University of Medical Sciences, Tehran, Iran.
authors.forename: Farrokhlagha
authors.initials: F
authors.lastname: Ahmadi
authors.forename: Pegah
authors.initials: P
authors.lastname: Aghajanzadeh
authors.forename: Hadi Rokni
authors.initials: HR
authors.lastname: Yazdi
authors.forename: Sima
authors.initials: S
authors.lastname: Maziar
authors.forename: Sayad Mansour
authors.initials: SM
authors.lastname: Gatmiri
mesh_terms: D000328:Adult; D000368:Aged; D000469:Alkaline Phosphatase / Q000097:blood; D015415:Biomarkers / Q000097:blood; D001783:Blood Flow Velocity; D003430:Cross-Sectional Studies; D004797:Enzyme-Linked Immunosorbent Assay; D005260:Female; D006785:Hospitals, University; D006801:Humans; D006962:Hyperparathyroidism, Secondary / Q000097:blood / Q000175:diagnosis / Q000209:etiology*; D007492:Iran; D016014:Linear Models; D008297:Male; D008875:Middle Aged; D015999:Multivariate Analysis; D009929:Organ Size; D010280:Parathyroid Glands / Q000098:blood supply* / Q000000981:diagnostic imaging / Q000378:metabolism* / Q000601:surgery; D010281:Parathyroid Hormone / Q000097:blood / Q000378:metabolism*; D016105:Parathyroidectomy; D011237:Predictive Value of Tests; D012039:Regional Blood Flow; D006435:Renal Dialysis / Q000009:adverse effects; D051436:Renal Insufficiency, Chronic / Q000097:blood / Q000150:complications / Q000175:diagnosis / Q000628:therapy*; D018615:Ultrasonography, Doppler, Color
chemical_list: D015415:Biomarkers; C470125:PTH protein, human; D010281:Parathyroid Hormone; D000469:Alkaline Phosphatase