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1

Antibacterial activity of lavender essential oil and linalool combined with gentamicin on selected bacterial strains

100%
Adaszynska-Skwirzynska M., Szczerbinska D., Zych S.
Medycyna Weterynaryjna
|
2020
|
tom 76
|
nr 02
The aim of this study was to verify the existence of the synergistic antibacterial effect of lavender essential oil and linalool individually combined with the antibacterial drug gentamicin. We investigated in vitro the effectiveness of the combinations of gentamicin and lavender essential oil and of gentamicin and linalool against the following strains: Staphylococus aureus ATCC 25923, Staphylococus aureus MRSA and Pseudomonas aeruginosa ATCC 9027. In order to determine the sensitivity of these microorganisms, we determined the minimum inhibitory concentration (MIC – Minimal Inhibitory Concentration). The study of the interaction of gentamicin with lavender oil and linalool was evaluated by the checkerboard method. Synergistic interaction between lavender essential oil and gentamicin and between linalool and gentamicin was observed against Staphylococcus aureus ATCC 25923 and Staphylococcus aureus MRSA. In particular, a very strong synergistic interaction was observed against Staphyloccocus aureus MRSA (lavender essential oil FIC index = 0.14; linalool FIC index = 0.13). In contrast, combinations of gentamicin and lavender essential oil and of gentamicin and linalool were less effective against Pseudomonas aeruginosa growth.
2

Association of two SNPs in the coding region of the insulin-like growth factor 1 receptor (IGF1R) gene with growth-related traits in Angus cattle

100%
Szewczuk M., Zych S., Wojcik J., Czerniawska-Piatkowska E.
Journal of Applied Genetics
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2013
|
tom 54
|
nr 3
3

A novel polymorphism within intron B of growth hormone gene (GH2) of the rainbow trout, Oncorhynchus mykiss

100%
Panicz R., Zych S., Grzesiak W.
Polish Journal of Natural Sciences
|
2014
|
tom 29
|
nr 2
Nucleotide composition of both growth hormone variants of rainbow trout (Oncorhynchus mykiss) has been strongly preserved evolutionally what might suggest that any change within these sequences can have an influence on the functioning of the somatotropic axis. A 121 bp fragment that contained nearly the entire B intron was amplified by the polymerase chain reaction. PCR products were bidirectionally sequenced. PCR products were digested by TaiI according to manufacturer’s instructions and resulting DNA was subjected to electrophoresis. An analysis of the gene fragment for growth hormone 2 showed the presence of SNP, easily identifiable by means of digestion with TaiI restriction enzyme. Statistical analysis confirmed that homozygous GHBB fish were the longest (31.77 cm) and the heaviest (404.70 g) and were statistically significantly different (P ≤ 0.05) from heterozygous GHAB fish. Mean length of GHAA homozygous fish was insignificantly lower (30.06 cm) with mean body weight of 339.12 g than homozygotes GHBB.
4

Os somatotropowa [GH-GHR-IGF-1] i jej rola w kontroli procesu laktacji u bydla

100%
Zych S., Szatkowska I., Dybus A.
Medycyna Weterynaryjna
|
2005
|
tom 61
|
nr 08
857-860
5

Gen dehydrogenazy mleczanowej-A wyznacznikiem dzielnosci lotowej golebia pocztowego?

100%
Dybus A., Pijanka J., Szatkowska I., Zych S.
Medycyna Weterynaryjna
|
2005
|
tom 61
|
nr 10
1114-1118
6

Charakterystyka genu aromatazy cytochromu P450 bydla

100%
Jedrzejczak M., Zych S., Szatkowska I., Dybus A.
Prace i Materiały Zootechniczne
|
2006
|
tom 63
27-34
7

Zaleznosc pomiedzy polimorfizmem beta-laktoglobuliny a produkcyjnoscia mleczna krow rasy hf

100%
Czerniawska-Piatkowska E., Szewczuk M., Zych S.
Acta Scientiarum Polonorum. Zootechnica
|
2007
|
tom 06
|
nr 1
23-27
8

Ewolucja poglądów na temat insulinopodobnych czynników wzrostu

100%
Szewczuk M., Zych S., Czerniawska-Piatkowska E.
Postępy Biochemii
|
2009
|
tom 55
|
nr 3
9

Szlaki sygnalowe hormonu wzrostu

100%
Zych S., Szatkowska I., Czerniawska-Piatkowska E.
Postępy Biochemii
|
2006
|
tom 52
|
nr 4
367-372
10

Association between IGF1R / i16 / TaqI and IGF1 / SnaBI polymorphisms and milk production traits in Polish Holstein-Friesian cows

100%
Szewczuk M., Zych S., Czerniawska-Piatkowska E., Wojcik J.
Animal Science Papers and Reports
|
2012
|
tom 30
|
nr 1
The insulin-like growth factor (IGF) signalling pathway plays a crucial role in the regulation of growth and development of mammals. The strong mammary insulin-like growth factor receptor type 1 (IGF1R) mRNA expression during lactation suggests a role for peripheral insulin-like growth factor I (IGF-I) in maintenance of lactation. The aim of the study was to identify the frequencies of alleles and genotypes of IGF1/SnaBI polymorphism and two known polymorphisms within intron 16 of the bIGF1R gene (SNP ID rs41960582 and rs41960583) as well as to determine associations between these polymorphisms and milk production traits in Polish Holstein-Friesian cows. The frequency of IGF1/SnaBI allele A occurred similar to that of allele B (0.55 and 0.45, respectively). No effect was found of IGF1 genotype on milk production traits. In the case of IGF1R polymorphisms detected by TaqI digestion (frequency of allele A = 0.61 and 0.39 of allele B), no significant effects of the IGF1R/TaqI polymorphism on the fat and protein yield and milk fat content was identified as well as no association between BB genotype and milk yield (P≤0.05). The high frequencies of all genotypes for both polymorphisms enabled the analysis of association between genotype combinations and milk traits. Cows with the IGF1RBB/IGF1AB genotype combination (9% of the examined population) yielded more milk, fat and protein compared to other combinations (P≤0.05).
11

Determinacja plci u ssakow

100%
Szatkowska I., Zych S., Kulig H.
Medycyna Weterynaryjna
|
2003
|
tom 59
|
nr 10
847-852
12
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Association between two polymorphisms within intron 4 of insulin-like growth factor receptor type 1 gene (IGF1R/HinfI and IGF1R/Mph1103I) and milk traits of Polish Holstein-Friesian cows

88%
Szewczuk M., Wilkowiecki P., Zych S., Czerniawska-Piatkowska E., Wojcik J.
Acta Scientiarum Polonorum. Zootechnica
|
2011
|
tom 10
|
nr 4
The aim of the present study was to determine the frequency of the two polymorphic variants located in intron 4 of the gene coding for insulin-like growth factor 1 receptor (IGF1R) in the examined herd of 184 Holstein-Friesian cows and to search for the association between these polymorphisms and the selected milk performance traits. The IGF1R gene polymorphism was identified with PCR-RFLP using the HinfI and Mph1103I restriction enzymes. For the IGF1R/HinfI polymorphism, the highest frequency was found for the BB genotype (0.49), a similar one was in the case of the AB genotype (0.45) and the lowest one was for the AA genotype (0.04). The frequency of alleles was as follows: allele A – 0.28 and allele B – 0.72. Statistical analysis showed that the analysed polymorphism significantly affected milk yield, milk protein yield (P≤0.01) and milk fat yield (P≤0.05), favouring the BB genotype. For the IGF1R/Mph1103I polymorphism, no individuals with the AA genotype were recorded.Ahigh frequency of allele B (0.94) was found. No significant effect of the IGF1R/Mph1103I polymorphic site on the yield of milk, fat and protein was shown. Statistically significant differences (P≤0.05) were observed only for the percentage content of milk fat and protein with indication on the positive effect of the BB genotype.
13

Madonna z puszczy

62%
Fac I., Zych S.
Trybuna Leśnika
|
2005
|
nr 12
16-17
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