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Int J Mol Sci. 2017 Aug 4;18(8). pii: E1703. doi: 10.3390/ijms18081703.

Effects of Highly Polluted Environment on Sperm Telomere Length: A Pilot Study.

Author information

1
CNR Institute of Clinical Physiology, Via Moruzzi 1, 56124 Pisa, Italy. vecoli@ifc.cnr.it.
2
Andrology Unit of the "San Francesco d'Assisi" Hospital, ASL Salerno, EcoFoodFertility Project Coordination Unit, Oliveto Citra, 84020 Salerno, Italy. l.montano@aslsalerno.it.
3
CNR Institute of Clinical Physiology, Via Moruzzi 1, 56124 Pisa, Italy. aborghini@ifc.cnr.it.
4
Infertility Center, ASL Salerno Vallo della Lucania Hospital, 84078 Salerno, Italy. tiziananotari7@gmail.com.
5
Reproduction Unit, HERA Center, Sant'Agata Li Battiati, 95030 Catania, Italy. angugl@alice.it.
6
CNR Institute of Clinical Physiology, Via Moruzzi 1, 56124 Pisa, Italy. nella@ifc.cnr.it.
7
CNR Institute of Clinical Physiology, Via Moruzzi 1, 56124 Pisa, Italy. turchi@ifc.cnr.it.
8
CNR Institute of Clinical Physiology, Via Moruzzi 1, 56124 Pisa, Italy. mariagrazia.andreassi@ifc.cnr.it.

Abstract

High environmental pressure may impair male fertility by affecting sperm quality, but the real effect remains controversial. Herein, we assessed the influence of environmental exposure on telomere length (TL) in both leukocytes (LTL) and sperm cells (STL). A pilot biomonitoring study was conducted in 112 clinically healthy, normospermic men living in various areas of Campania region (South of Italy) with high (n = 57, High Group) or low (n = 55, Low Group) environmental pressure. TL analysis was assessed by quantitative real time-PCR. STL was not significantly correlated with either age (p = 0.6) or LTL (p = 0.7), but was significantly longer in the High Group compared with the Low Group (p = 0.04). No significant difference was observed between leukocyte TL in the High or Low Group. Our results showed that male residents in areas with high environment exposure had a significant increase in STL. This finding supports the view that the human semen is a sentinel biomarker of environmental exposure.

KEYWORDS:

environment; sperm quality; telomere length

PMID:
28777293
PMCID:
PMC5578093
DOI:
10.3390/ijms18081703
[Indexed for MEDLINE]
Free PMC Article

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