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Pituitary

Erschienen in:

01.12.2014

Prolactin levels in manganese-exposed male welders

verfasst von: Engin Tutkun, Sedat Abuşoğlu, Hinç Yılmaz, Meşide Gündüzöz, Nilgün Gıynas, Ceylan Demir Bal, Ali Ünlü

Erschienen in: Pituitary | Ausgabe 6/2014

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Abstract

Purpose

Early studies on manganese (Mn) exposure have demonstrated that this transition metal affects dopamine neurotransmission. Dopamine serves as a tonic inhibitor of prolactin release in the anterior hypophysis. Our aim was to determine the relation between serum prolactin levels and manganese-exposure.

Methods

Whole blood was collected from 95 non-exposed control subjects and 179 manganese-exposed male welders. Whole blood manganese was analyzed by Inductively Coupled Plasma—Mass Spectrometer on Agilent 7700 (Agilent Technologies, USA). Serum prolactin levels (PRL), aspartate transaminase (AST), alanine transaminase (ALT), urea, creatinine, soduim (Na), potassium (K) were analyzed by immunological and spectrophotometric methods on Roche E170 Modular System (Roche Diagnostics, Mannheim, Germany).

Results

The mean ages for control and manganese-exposed group were 40.5 ± 7.8 and 39.5 ± 8.7, respectively (p = 0.258). The mean working period (years) for control and manganese-exposed group were 17.4 ± 9.8 and 18.2 ± 7.7 years, respectively (p = 0.581). Serum AST and potassium levels were significantly higher in control group than manganese-exposed group (p = 0.002 and p = 0.048, respectively) and body-mass index (BMI) was significantly lower in control group than manganese-exposed group (p = 0.033). There was a significantly positive correlation between whole blood manganese levels and serum prolactin (r = 0.860, p < 0.001). Serum ALT levels were positively correlated with serum AST, urea and sodium (r = 0.315, p < 0.001; r = 0.121, p = 0.046; r = 0.130, p = 0.031).

Conclusions

Serum prolactin level is a diagnostic marker for determining the effect of manganese-exposure.

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Titel: Prolactin levels in manganese-exposed male welders
verfasst von: Engin Tutkun
Sedat Abuşoğlu
Hinç Yılmaz
Meşide Gündüzöz
Nilgün Gıynas
Ceylan Demir Bal
Ali Ünlü
Publikationsdatum: 01.12.2014
Verlag: Springer US
Erschienen in: Pituitary / Ausgabe 6/2014
Print ISSN: 1386-341X
Elektronische ISSN: 1573-7403
DOI: https://doi.org/10.1007/s11102-013-0545-6

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