OBJECTIVE: the aim of present study is to determine possible contributions of INF-gamma inducible chemochine CXCL-10 in the thyroid color doppler ultrasound (CDU) parameters typical of autoimmune disorders. METHODS: we studied a consecutive series of 25 patients with autoimmune thyroid disease and 10 healthy control subjects. All subjects underwent a thyroid CDU examination by the same investigator, who was unaware of the laboratory values at the time of the examination. Moreover, all subjects underwent a clinical evaluation, CXCL-10 and thyroid hormonal assessment. RESULTS: CXCL-10 levels were significantly higher in patients with autoimmune diseases and as well as in subjects with an increased thyroid vascularization at CDU. Moreover, CXCL-10 levels were significantly (p<0.05) correlated with inferior thyroid arteria peak systolic velocity (ITA-PSV; r = 0.376) and with thyroid volume even after adjustment for confounding factors. No difference was observed between vascular thyroid pattern at CDU and thyroid circulating hormones while, ITA-PSV was significantly associated with TSH (Adj. r = -0.373; p<0.05). CONCLUSIONS: our data seem to suggest that CXCL-10 could play an important role in the intra-thyroid angiogenesis modulation, explaining, at least partiality, CDU findings typical of thyroid autoimmune diseases. Moreover we confirmed previous reports considering ITA-PSV as the best CDU parameters in the differential diagnosis of thyroid autoimmune disorders.
OBJECTIVE: the aim of present study is to determine possible contributions of INF-gamma inducible chemochine CXCL-10 in the thyroid color doppler ultrasound (CDU) parameters typical of autoimmune disorders. METHODS: we studied a consecutive series of 25 patients with autoimmune thyroid disease and 10 healthy control subjects. All subjects underwent a thyroid CDU examination by the same investigator, who was unaware of the laboratory values at the time of the examination. Moreover, all subjects underwent a clinical evaluation, CXCL-10 and thyroid hormonal assessment. RESULTS:CXCL-10 levels were significantly higher in patients with autoimmune diseases and as well as in subjects with an increased thyroid vascularization at CDU. Moreover, CXCL-10 levels were significantly (p<0.05) correlated with inferior thyroid arteria peak systolic velocity (ITA-PSV; r = 0.376) and with thyroid volume even after adjustment for confounding factors. No difference was observed between vascular thyroid pattern at CDU and thyroid circulating hormones while, ITA-PSV was significantly associated with TSH (Adj. r = -0.373; p<0.05). CONCLUSIONS: our data seem to suggest that CXCL-10 could play an important role in the intra-thyroid angiogenesis modulation, explaining, at least partiality, CDU findings typical of thyroid autoimmune diseases. Moreover we confirmed previous reports considering ITA-PSV as the best CDU parameters in the differential diagnosis of thyroid autoimmune disorders.
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