Abstract:
:The aim of this experimental study was to evaluate the effects of nicotine on sperm motility and on non-conventional sperm parameters in vitro. Capacitated spermatozoa isolated from 10 normozoospermic, healthy, non-smoker men were evaluated. Spermatozoa were exposed to increasing concentrations of nicotine (0, 1, 10, and 100 ng/ml) for 3 and 24 hours. Progressive motility and the following non-conventional sperm parameters, evaluated by flow cytometry, were assessed: mitochondrial membrane potential, viability, phosphatidylserine externalization, late apoptosis, degree of chromatin compactness, and DNA fragmentation. Nicotine suppressed, in a concentration-dependent manner, sperm progressive motility starting from the lowest concentration used (1 ng/ml). Similarly, it reduced the percentage of viable spermatozoa and increased the number of spermatozoa in late apoptosis, with altered chromatin compactness, or DNA fragmentation already after 3 hours of incubation. These effects were observed at a concentration similar (100 ng/ml) to that found in the seminal plasma of smokers (70 ng/ml), with the exception of the effects on sperm DNA fragmentation whose significant effect was detected also at a lower concentration (10 ng/ml). Nicotine may be regarded as a noxious component of cigarette smoke on the male reproductive function.
journal_name
Int J Immunopathol Pharmacolauthors
Condorelli RA,La Vignera S,Giacone F,Iacoviello L,Vicari E,Mongioi' L,Calogero AEdoi
10.1177/039463201302600317subject
Has Abstractpub_date
2013-07-01 00:00:00pages
739-46issue
3eissn
0394-6320issn
2058-7384pii
17journal_volume
26pub_type
杂志文章abstract::Malacoplakia is a rare inflammatory condition characterized by the accumulation of benign macrophages associated with pathognomonic Michaelis-Gutmann bodies (MGBs). It is usually found in the genito-urinary tract, and has been associated with immunocompromised states. In this short report, we present 5 patients with p...
journal_title:International journal of immunopathology and pharmacology
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abstract::Sublingual immunotherapy with monomeric allergoid (allergoid SLIT), given according to the standard scheme, has proved effective and safe in many clinical trials. However, its build-up phase requires a long time ranging from 16 days to 14 weeks. This study therefore investigated whether, with a four-day up-dosing, the...
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pub_type: 杂志文章,随机对照试验
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abstract::Nasal cytology represents a valid method in the differential diagnosis of allergic and non-allergic nasal diseases, as it is simple, safe, non-invasive, cost-effective, and easy to perform both in the medical and paediatric office. In particular, through cytological investigation it is possible to diagnose a group of ...
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