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Wyszukujesz frazę "genetic polymorphism" wg kryterium: Temat


Tytuł:
Do Preoperative Psychological Condition and μ1-opioid Receptor Gene Polymorphism 118a>G Affect Opioid Analgesia Efficacy After Major Urological Surgeries?
Autorzy:
Babanin, Andrei .A.
Skoritskiy, I.V.
Boiarkina, Anna V.
Fedosov, I.E.
Pivovarenko, S.A.
Potapov, Aleksandr L.
Wydawca:
Radomska Szkoła Wyższa
Cytata wydawnicza:
Boiarkina AV, Potapov AL, Babanin AA, Pivovarenko SA, Fedosov IE, Skoritskiy IV. DO PREOPERATIVE PSYCHOLOGICAL CONDITION AND Μ1-OPIOID RECEPTOR GENE POLYMORPHISM 118A>G AFFECT OPIOID ANALGESIA EFFICACY AFTER MAJOR UROLOGICAL SURGERIES? Journal of Health Sciences. 2013;3(10):605–612.
Opis:
Walery Zukow
Background. Effective postoperative analgesia remains an essential problem in modern anesthesiology. The search of factors affecting the pain intensity after the surgery is of significant practical importance. It is known, that personal experience, psychological and social state may be related to the level of postoperative pain syndrome. At the same time, genetic factors regulating opioid pharmacodynamics contribute to the large interpatient variability in postoperative opioid requirements. Thus, OPRM1 gene polymorphism 118A>G is a primary candidate for genetic influence on the efficacy of opioids, as well as patients emotional reactions. The aim of this study is to evaluate the interrelation between patients preoperative psychological condition, variations of the OPRM1 gene and pain intensity after the surgery. Materials and Methods. The observational study has been conducted, which included 100 consecutive patients undergoing major urological surgeries with lumbotomic access. Postoperative pain management included intramascular administration of trimeperidine and NSAIDs on doctor's prescription. The level of preoperative anxiety and depression was assessed using the HADS scale (Hospital Anxiety and Depression Scale). Pain after the surgery was assessed within the first 24 hours after the surgery. SNP OPRM1 118A>G was analysed using real-time PCR. Differences in patient groups were considered statistically significant at p<0.05. Results. Clinical anxiety was revealed in 24% patients, clinical depression - in 18%. In the group of patients with clinical anxiety the maximal level of pain on the first day after the surgery was 9 (7-10) points, 8 (5-9) points in the group of subclinical anxiety, and 5 (4-8) points in the group with no anxiety symptoms (p < 0.001). Significant differences in the following parameters were also observed between groups: duration of maximal pain syndrome within the first postoperative day and the extent of pain interference with moving in bed, deep breathing and sleeping. Moreover, significant differences in the all of studied parameters have been revealed in the group of patients depending on the level of depressive disorders. The relationship between SNP OPRM1 118A>G and patients preoperative psychological status has been identified: the preoperative anxiety and depression scores in the group of AG+GG carriers were 45.4-72.7% higher than in AA genotype carriers. Conclusions. Preoperative psychological state affects the pain intensity after the surgery. The potential role of SNP OPRM1 118A>G in the molecular mechanisms of affective disorders and modulation of pain perception has been revealed. In order to improve the effectiveness of postoperative pain management, it is advisable to continue the search of interrelationship between these parameters.
Dostawca treści:
Repozytorium Centrum Otwartej Nauki
Artykuł
Tytuł:
Effect of seed collection and site altitude on the growth and genetic variability of early and late flushing provenances of Norway spruce tested in the IPTNS-IUFRO 1964/68 site in Poland
Autorzy:
Masternak, Katarzyna
Wydawca:
Committee on Forestry Sciences and Wood Technology of the Polish Academy of Sciences and the Forest Research Institute in Sekocin Stary
Opis:
The growth characteristics and the genetic variability of 23 population of Norway spruce tested in the largest international comparative experiments IPTNS-IUFRO 1964/68 in Krynica were analysed. The studied populations belong to early and late flushing provenances from Alpine, Carpathian and north-eastern range of occurrence of species. The height, diameter at breast height (DBH) and genetic diversity of 79 trees were examined using random amplified polymorphism DNA (RAPD) technique. The mean spruce height at the age of 45 years was 17.5 m and the DBH 20.4 cm. The average and the effective number of alleles per locus calculated for all studied populations was 0.90 and 1.20, respectively. The expected heterozygosity was 0.10. The obtained results show statistically significant relationship of the parameters of genetic variability of Norway spruces and the type of seed collection from which the IUFRO experience was established. It was found that the genetic variability of the studied population depends on the longitude and height above sea level of mother stands. No significant correlation was found between the type of seed collection and location of mother stands and height and DBH of Norway spruce. Also the growth characteristics (height and the DBH) of trees do not depend on their genetic variability.
Dostawca treści:
Repozytorium Centrum Otwartej Nauki
Artykuł
Tytuł:
Sequence analysis of human cytomegalovirus US28 gene in low-passage clinical isolates from children and AIDS patients
Autorzy:
He, Rong
Xia, Chang
Ruan, Qiang
Qi, Ying
Ma, Yan-Ping
Ji, Yao-Hua
Guo, Jin-Jin
Tematy:
chemokine receptors
cytomegalovirus
genetic polymorphism
US28
Pokaż więcej
Wydawca:
Polskie Towarzystwo Biochemiczne
Powiązania:
https://bibliotekanauki.pl/articles/1039923.pdf  Link otwiera się w nowym oknie
Opis:
Human cytomegalovirus (HCMV) is often a dangerous opportunistic pathogen that causes significant morbidity and mortality in newborn children and immunocompromised patients. The different symptoms and tissue tropisms of HCMV infection may result from genetic polymorphism. This study investigated the sequence variability of the HCMV US28 ORF, which shows sequence homology to the G protein-coupled receptor. HCMV isolated from suspected pediatric cases and isolates from AIDS patients were compared in order to examine the possible associations between polymorphisms and pathogenesis. Seventy children with suspected congenital HCMV infection, who suffered from jaundice (47), megacolon (10), and microcephaly (13), and 17 AIDS patients, were studied. Mutation was prevalent among the sequences of US28, with a focus on the two ends of US28. The important functional groups of US28 are highly conserved. An unrooted tree showed that all sequences from suspected congenitally infected infants and AIDS patients were divided into three groups. Comparison showed that most of the sequences (12/17) from pediatric patients were included in the first group (G1), whereas most of the sequences (11/17) from AIDS patients were included in the third group (G3). The specific high mutation sites in US28 from children were located at the C terminus of the protein, whereas those from AIDS patients were located at the N terminus. We demonstrated the existence of polymorphisms among the US28 genes of clinical isolates of HCMV from infants with suspected congenital infection. Comparison of US28 sequences from AIDS patients with those from children showed that both sequences have their own specific high mutation points.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of effect CAT -262C/T, SOD + 35A/C, GPx1 Pro197Leu polymorphisms in patients with ibd in the polish population
Autorzy:
Mrowicki, Jerzy
Mrowicka, Małgorzata
Majsterek, Ireneusz
Mik, Michał
Dziki, Adam
Dziki, Łukasz
Tematy:
genetic polymorphism
antioxidant enzyme
inflammatory bowel disease
Pokaż więcej
Wydawca:
Index Copernicus International
Powiązania:
https://bibliotekanauki.pl/articles/1393718.pdf  Link otwiera się w nowym oknie
Opis:
Inflammatory bowel disease (IBD) are a heterogeneous group of disorders in the course dominated by chronic, recurrent gastrointestinal inflammation. It is believed that the activation of IBD occurs in patients with a genetic predisposition to their development. Chronic inflammation develops as a result of an excessive reaction of the immune system principally under the influence of environmental risk factors. Among them, it has been shown that the mechanism of oxidative stress is associated with the pathophysiology of inflammatory bowel disease, responsible for the commencement and progress of these diseases. The aim of the study was the relationship between single nucleotide polymorphisms (SNPs) of individual antioxidant enzymes, and the prevalence of inflammatory bowel disease that may be associated with increased levels of oxidative stress. Material and methods. A total of 111 IBD patients, including 65 patients with ulcerative colitis (UC) and 46 with Crohn’s disease (CD) and 125 healthy controls recruited from the Polish population, were genotyped for CAT -262C / T (rs1001179), SOD + 35A / C (rs2234694), GPx Pro 197 Leu polymorphisms. Genotyping of CAT, SOD, GPx gene polymorphism was performed by a RFLP-PCR. Results. The performed analysis of genetic polymorphisms of antioxidant enzymes showed that polymorphic variant of the CAT -262 C / T may have protective effects in patients with ulcerative colitis in the range of genotype C / T; OR = 0.49 (0.25-0.99), p = 0.044. Trend protective, but statistically unrelated, it was also observed for genotype T / T and T allele of the same polymorphism and genotypes and alleles + 35A / C SOD1 in UC as well as polymorphic variants CAT -262 C / T, Pro197Leu of GPx1, + 35A / C SOD1 in CD. The results were compared with a control group of potentially healthy individuals without such diseases. Conclusions. It has been shown that the polymorphism of antioxidant enzymes CAT gene -262 C / T may have protective effects in patients who are carriers of a genotype C / T at the UC. The potential protective effect without statistical relationships were also observed for other genotypes and alleles studied polymorphic variants of antioxidant enzymes in CD and CAT- 262C / T and + 35 A / C SOD1 in UC. Conducted our audit should be extended to more group of patients in order to assess whether or not to confirm the observed during analysis, the protective effect of CAT-262 C / T in ulcerative colitis and other trends observed for other polymorphic variants tested genes.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Genetic diversity of the invading fish species Neogobius melanostomus (Pallas, 1811) (Gobiidae: Perciformes) from the Baltic Sea
Annales Zoologici, vol. 53, no 2
Autorzy:
Szybkowska, Joanna Danuta
Współwytwórcy:
Polska Akademia Nauk. Muzeum i Instytut Zoologii
Fundacja "Natura optima dux"
Wydawca:
Fundacja Natura optima dux
Powiązania:
Annales Zoologici
Opis:
S. 339-346 : il. ; 27 cm
Nazwy taksonów w jęz. łac.
Taxa in Latin
P. 339-346 : ill. ; 27 cm
Bibliogr. p. 345-346
Bibliogr. s. 345-346
Dostawca treści:
RCIN - Repozytorium Cyfrowe Instytutów Naukowych
Książka
Tytuł:
Analysis of the G/C polymorphism in the 5-untranslated region of the RAD51 gene in breast cancer.
Autorzy:
Blasiak, Janusz
Przybyłowska, Karolina
Czechowska, Agnieszka
Zadrożny, Marek
Pertyński, Tomasz
Rykała, Jan
Kołacińska, Agnieszka
Morawiec, Zbigniew
Drzewoski, Józef
Tematy:
genetic polymorphism
RAD51 gene
RFLP-PCR
breast cancer
Pokaż więcej
Wydawca:
Polskie Towarzystwo Biochemiczne
Powiązania:
https://bibliotekanauki.pl/articles/1043672.pdf  Link otwiera się w nowym oknie
Opis:
The breast cancer suppressor proteins BRCA1 and BRCA2 interact with RAD51, a protein essential for maintaining genomic stability by playing a central role in homology-dependent recombinational repair of the DNA double-strand breaks. Therefore, genetic variability in the RAD51 gene may contribute to the appearance and/or progression of breast cancer. A single nucleotide polymorphism in the 5'- untranslated region of RAD51 (a G to C substitution at position 135, the G/C polymorphism) is reported to modulate breast cancer risk. We investigated the distribution of genotypes and frequency of alleles of the G/C polymorphism in breast cancer. Tumor tissues were obtained from postmenopausal women with node-negative and node-positive breast carcinoma with uniform tumor size. Blood samples from age matched healthy women served as control. The G/C polymorphism was determined by PCR-based MvaI restriction fragment length polymorphism. The distribution of the genotypes of the G/C polymorphism did not differ significantly (P >0.05) from those predicted by the Hardy-Weinberg distribution. There were no differences in the genotype distribution and allele frequencies between node-positive and node-negative patients. There were no significant differences between distributions of the genotypes in subgroups assigned to histological grades according to Scarf-Bloom-Richardson criteria and the distribution predicted by Hardy-Weinberg equilibrium (P >0.05). Our study implies that the G/C polymorphism of the RAD51 gene may not be directly involved in the development and/or progression of breast cancer and so it may not be useful as an independent marker in this disease.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Polymorphisms in the p53 pathway genes and micronucleus occurrence in Chinese vinyl chloride-exposed workers
Autorzy:
Li, Yong
Feng, Nan-Nan
Zhang, Guang-Hui
Wang, Qi
Hao, Yan-Hui
Nanzhang, Ya
Long, Changxu
Li, Yongliang
Brandt-Rauf, Paul W.
Xia, Zhao-Lin
Tematy:
VC
occupational exposure
p53 pathway genes
genetic polymorphism
Pokaż więcej
Wydawca:
Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Powiązania:
https://bibliotekanauki.pl/articles/2179059.pdf  Link otwiera się w nowym oknie
Opis:
Objectives: To investigate the association between polymorphisms in the p53 pathway genes and chromosomal damage in vinyl chloride (VC)-exposed workers. Materials and Methods: Cytokinesis block micronucleus test was performed in 310 VC-exposed workers and 149 non-exposed workers to determine chromosomal damage. The polymerase chain reaction and restriction fragment length polymorphism technique were used to detect six SNPs in the p53 pathway genes involved in the cell cycle. Results: There was a highly significant dose-response relationship between VC exposure and chromosomal damage. Individuals carrying the variant genotypes were at higher risk for chromosomal damage compared with their wild type genotype: p53rs1042522, MDM2 Del1518rs3730485, MDM2rs2279744 and GADD45Ars532446. On the other hand, individuals possessing the variant genotype of CDKN2A rs3088440 had significantly decreased risk compared with the corresponding wild-type. Conclusions: Genetic polymorphisms in P53 pathway genes may have an impact on VC-induced chromosomal damage.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Population genetic structure of Iris pumila L. in Ukraine: effects of habitat fragmentation
Autorzy:
Bublyk, O.
Andreev, I.
Parnikoza, I.
Kunakh, V.
Tematy:
conservation
genetic polymorphism
habitat fragmentation
ISSR markers
population
genetics
Pokaż więcej
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Powiązania:
https://bibliotekanauki.pl/articles/2117815.pdf  Link otwiera się w nowym oknie
Opis:
Habitat fragmentation is one of serious threats to biodiversity of nature in today's world. The present study of a typical steppe species Iris pumila L. (Iridaceae) has analyzed the impacts of geographical isolation and population size on genetic diversity and population structure in conditions of habitat fragmentation. The key indices of population genetic variability calculated from the ISSR markers data were on average as follows: Shannon diversity index (S) – 0.188; unbiased Nei’s gene diversity (He ) – 0.123; and the average measure of Jaccard’s genetic distances between individuals within populations – 58.4%. Although the largest population had significantly higher values of S and He, the small and marginal populations also showed a comparable level of variation. Most of the genetic variation of I. pumila was distributed within the populations. A strong correlation was found between Nei’s genetic distances and geographic distances between the populations. According to the Bayesian analysis, genetic structure of the populations was highly homogeneous; however, the presence of admixed genotypes indicated the possibility of gene flow between the populations at present.
Dostawca treści:
Biblioteka Nauki
Artykuł

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