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Posted by on Jun 14, 2013 in Medical Journals |

Elevated tryptase levels are associated with greater bone density in a cohort of patients with mastocytosis.

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Int Arch Allergy Immunol. 2006;139(3):265-70. Epub 2006 Jan 30.

Elevated tryptase levels are associated with greater bone density in a cohort of patients with mastocytosis.

Kushnir-Sukhov NM, Brittain E, Reynolds JC, Akin C, Metcalfe DD.

Abstract

BACKGROUND:

Mastocytosis is associated with a pathological increase in tissue mast cells. Associated skeletal problems include a decrease in bone density and pathological fractures.

METHODS:

In order to explore the relationship between bone density and the severity of mastocytosis, 21 patients with mastocytosis who underwent dual-energy X-ray absorptiometry were entered into this study. Correlation coefficients were computed between Z-scores and demographic, clinical and laboratory data. Femoral neck Z-scores correlated with serum tryptase levels when all the patients were considered (p=0.029).

RESULTS AND CONCLUSION:

Patients with less severe disease had significantly lower values at the L1-L4 spine (p=0.046) and femoral neck (p=0.029) Z-scores compared to patients with more severe disease. Most patients who had low Z-scores (between -1 and -2.5) were under 50 years of age, had less severe disease and had lower serum tryptase levels. A history of gastroesophageal reflux disease and a history of hypotensive episodes correlated with lower L1-L4 spine Z-scores (p<0.05). Thus, patients with less severe disease and lower serum tryptase levels should in particular have their bone density determined with treatment appropriate to the findings. Copyright (c) 2006 S. Karger AG, Basel.

PMID: 16449817 [PubMed – indexed for MEDLINE]