H E Virtanen
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Explore the profile of H E Virtanen including associated specialties, affiliations and a list of published articles.
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Articles
13
Citations
405
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Recent Articles
1.
Rodprasert W, Virtanen H, Sadov S, Perheentupa A, Skakkebaek N, Jorgensen N, et al.
Andrology
. 2018 Sep;
7(1):15-23.
PMID: 30251363
Background: Finnish men used to have higher semen quality than Danish men. However, recent studies showed that semen quality in Finland has declined, but it has been relatively stable in...
2.
Antignac J, Main K, Virtanen H, Boquien C, Marchand P, Venisseau A, et al.
Environ Pollut
. 2016 Aug;
218:728-738.
PMID: 27521295
The present study compares concentrations and chemical profiles of an extended range of persistent organic pollutants (dioxins, polychlorobiphenyls, brominated flame retardants and organochlorine pesticides) in breast milk samples from French...
3.
Jorgensen N, Joensen U, Toppari J, Punab M, Erenpreiss J, Zilaitiene B, et al.
Hum Reprod
. 2016 Mar;
31(5):947-57.
PMID: 26936886
Study Question: Is the Leydig cell function of young European men associated with semen quality? Summary Answer: Compensated reduction in Leydig cell function, defined as increased LH concentration combined with...
4.
Krysiak-Baltyn K, Toppari J, Skakkebaek N, Jensen T, Virtanen H, Schramm K, et al.
Int J Androl
. 2012 Apr;
35(3):294-302.
PMID: 22519522
During the past four decades, there has been an increase in the incidence rate of male reproductive disorders in some, but not all, Western countries. The observed increase in the...
5.
Virtanen H, Koskenniemi J, Sundqvist E, Main K, Kiviranta H, Tuomisto J, et al.
Int J Androl
. 2011 Dec;
35(3):283-93.
PMID: 22150420
In animal studies, exposure to dioxins has been associated with disrupted development of the male reproductive system, including testicular maldescent. Some polychlorinated biphenyls (PCBs) have also dioxin-like effects. In addition,...
6.
Jorgensen N, Vierula M, Jacobsen R, Pukkala E, Perheentupa A, Virtanen H, et al.
Int J Androl
. 2011 Mar;
34(4 Pt 2):e37-48.
PMID: 21366607
Impaired semen quality and testicular cancer may be linked through a testicular dysgenesis syndrome of foetal origin. The incidence of testis cancer has been shown to increase among Finnish men,...
7.
Krysiak-Baltyn K, Toppari J, Skakkebaek N, Jensen T, Virtanen H, Schramm K, et al.
Int J Androl
. 2009 Sep;
33(2):270-8.
PMID: 19780864
Recent reports have confirmed a worldwide increasing trend of testicular cancer incidence, and a conspicuously high prevalence of this disease and other male reproductive disorders, including cryptorchidism and hypospadias, in...
8.
Virtanen H, Toppari J
Hum Reprod Update
. 2007 Nov;
14(1):49-58.
PMID: 18032558
Prospective clinical studies have shown that the prevalence of cryptorchidism among boys with birth weight > or =2500 g has increased in UK from 2.7 to 4.1% between the 1950s...
9.
Virtanen H, Rajpert-De Meyts E, Main K, Skakkebaek N, Toppari J
Toxicol Appl Pharmacol
. 2005 Jul;
207(2 Suppl):501-5.
PMID: 16005920
Patients with 45,X0/46XY karyotype often present with intersex phenotype and testicular dysgenesis. These patients may also have undescended testes (cryptorchidism), hypospadias and their spermatogenesis is severely disrupted. They have a...
10.
Shen H, Virtanen H, Main K, Kaleva M, Andersson A, Skakkebaek N, et al.
Chemosphere
. 2005 Jul;
62(3):390-5.
PMID: 16005046
The enantiomeric ratios (ER) of alpha-HCH and o,p'-DDT ((+)-isomer concentration/(-)-isomer concentration) and o,p'-DDD (first eluting enantiomer/second enantiomer) were investigated in 112 human placentas from Finnish boys collected 1997-2001. Both o,p'-DDD...