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A Sironen

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Articles 9
Citations 190
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Recent Articles
1.
Noskova A, Wurmser C, Crysnanto D, Sironen A, Uimari P, Fries R, et al.
Anim Genet . 2020 Sep; 51(6):945-949. PMID: 32975846
A recessive sperm defect of Yorkshire boars was detected more than a decade ago. Affected boars produce ejaculates that contain spermatozoa with defective acrosomes, resulting in low fertility. The acrosome...
2.
Martikainen K, Sironen A, Uimari P
J Dairy Sci . 2018 Oct; 101(12):11097-11107. PMID: 30316595
Inbreeding increases homozygosity, which in turn increases the frequency of harmful recessive alleles, resulting in inbreeding depression. Inbreeding depression on fertility reduces the profitability of dairy farming by decreasing the...
3.
Lehti M, Sironen A
Reproduction . 2016 Jan; 151(4):R43-54. PMID: 26792866
The last phase of spermatogenesis involves spermatid elongation (spermiogenesis), where the nucleus is remodeled by chromatin condensation, the excess cytoplasm is removed and the acrosome and sperm tail are formed....
4.
Sironen A, Fischer D, Laiho A, Gyenesei A, Vilkki J
Anim Genet . 2014 Apr; 45(4):500-7. PMID: 24712415
The immotile short tail sperm (ISTS) defect was recognized in the Finnish Yorkshire population at the end of the 1990s when several affected boars were identified. The causal mutation for...
5.
Uimari P, Sironen A, Sevon-Aimonen M
J Anim Sci . 2013 Feb; 91(5):2001-11. PMID: 23408819
Meat quality is important both to consumers and to the meat processing industry. Commonly used measures of porcine meat quality are the pH and color of the meat. The purpose...
6.
Sironen A, Uimari P, Iso-Touru T, Vilkki J
J Anim Breed Genet . 2012 Mar; 129(2):92-7. PMID: 22394230
Immotile, short-tail sperm defect (ISTS) expanded in the Finnish Yorkshire population in the end of 1990s. The causal mutation for this defect is a recent L1 insertion within the SPEF2...
7.
Kopp C, Sironen A, Ijas R, Taponen J, Vilkki J, Sukura A, et al.
Reprod Domest Anim . 2008 Apr; 43(6):690-5. PMID: 18397189
In the period 1996-2006 two specific sperm defects, the knobbed acrosome (KA) defect and the immotile short-tail sperm (ISTS) defect, showed a strong negative association with fertility in Finnish breeding...
8.
Mikkola M, Sironen A, Kopp C, Taponen J, Sukura A, Vilkki J, et al.
Reprod Domest Anim . 2006 Mar; 41(2):124-8. PMID: 16519717
Transplantation of testicular cells, also known as spermatogonial stem cell transplantation, is a relatively new approach in the field of male infertility. We used this technique to determine whether donor-derived...
9.
Salminen J, Haimi J, Sironen A, Ahtiainen J
Ecotoxicol Environ Saf . 1995 Aug; 31(3):250-7. PMID: 7498064
In a laboratory experiment, effects of chemical stress (pentachlorophenol, PCP, at concentrations of 0, 50, and 500 mg/kg) and biotic interactions (nematodes in the presence or absence of collembolas and...