7 research outputs found

    The Ala Allele at Val762Ala Polymorphism in Poly(ADP-ribose) Polymerase-1 (PARP-1) Gene is Associated with a Decreased Risk of Asthma in a Turkish Population

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    Background and objective. It has been suggested that inhibition of poly (ADP-ribose) polymerase-1 (PARP-1), either pharmacologically or by a gene knockout provides significant protection against systemic or tissue inflammation in animal models. The aim of this study was to analyze the association of the PARP-1 Val762Ala polymorphism, which has beenreported to be associated with decreased enzymatic activity, in Turkish patients with adult asthma. Methods. A total of 112 subjects with stable asthma and 180 normal controls from the same geographic region were studied and polymerase chain reaction-based restriction analysis was used to identify Val762Ala polymorphism of the PARP-1. Results. In univariate analysis, PARP-1 762 AA genotype conferred a 3.4 fold reduction in risk (OR = 0.297, 95% CI = 0.105-0.813; P = 0.014), while heterozygous VA genotype conferred an even greater level of protection (OR = 0.06; 95%CI, 0.026-0.14; P 10-6). In addition, wild type PARP-1 762 V allele had 5 times the risk of developing asthma than those without the allele (OR 0.199, CI 0.118-0.334, P = 10-6). Conclusions. These findings suggest that PARP-1 V762A variants may be one of the factors participating in protection or susceptibility to asthma in our population

    SOME AGRONOMIC AND QUALITY CHARACTERISTICS OF TWO Achillea asplenifolia Vent. POPULATIONS

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    WOS: 000392043000017The genus of Achillea L. consists of herbaceous plants are generally distributed in the northern hemisphere. Achillea asplenifolia and Achillea collina are the most important group of A. millefolium due to their highly effective pharmacological properties. Both species, A. asplenifolia and A. collina are distributed in the Europen flora but they don't exist in the Turkish flora. The present study aimed to determine some yield and quality characteristics of two populations, Achillea asplenifolia - 9602 and Achillea asplenifolia - 10403, belonging to Achillea asplenifolia Vent. collected from the flora of Bulgaria at Bornova and to select genotypes with high yield and quality. For this purpose a two years of field experiment was conducted in 2009 and 2010. Plant height (cm), green herbage yield (g/plant), drug herbage yield (g/plant), drug flos yield (g/plant) and essential oil content of populations were determined. Based on the results of two years of experiment minimum and maximum drug flos yield were 2 g/plant and 391.4 g/plant in Achillea asplenifolia - 9602. Essential oil rate ranged between 0.050-3.30%. Minimum and maximum drug flos yield of Achillea asplenifolia (10403) were 0 and 159.8 g/plant respectively and essential oil content ranged between 0-2.5%. A large distribution was found in both population of Achillea asplenifolia and especially population Achillea asplenifolia - 9602 was more remarkable and promising for selection studies.Scientific and Technical Research Council of Turkey (TUBITAK)Turkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [108O290]We thank to the Scientific and Technical Research Council of Turkey (TUBITAK) for its financial support to this study (Project number: 108O290)

    Relation of Biochemical Parameters with Flow-mediated Dilatation in Patients with Metabolic Syndrome

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    Background: Metabolic syndrome (MetS) is one of the high cardiovascular (CV) situations. Endothelial dysfunction, which is a common finding in patients with MetS, is related with increased CV risk. In patients with MetS, the effect of the major CV risk factors, not included in the MetS definition, on endothelial dysfunction is not well known. The aim of this study was to determine the effect of major CV risk factors such as gender, smoking, family history, and biochemical parameters on endothelial dysfunction in patients with MetS. Methods: The study was performed between December 2010 and August 2014. Atotal of 55 patients(15 females and 40 males) with MetS and 81 healthy controls (37 females and 44 males) with a body mass index <25 kg/m2 were enrolled in the study. Endothelial dysfunction was measured by flow-mediated dilatation (FMD), oxidative stress parameters; high-sensitivity C-reactive protein (hs-CRP), oxidized low-density lipoprotein (ox-LDL), endothelial nitric oxide synthase (e-NOS), nitric oxide, and cell adhesion markers; von Willebrand factor, and e-selectin. Platelet aggregation (endothelial adenosine diphosphate), total platelet count, and mean platelet volume were additionally analyzed and demographic parameters were explored. Student’s t-test, Mann-Whitney U-test, and Chi-square test were used to analyze the results. Results: The fasting blood glucose (z = 3.52, P = 0.001), hs-CRP (z = 3.23, P = 0.004), ox-LDL(z = 2.62, P = 0.013), and e-NOS (z = 2.22, P = 0.026) levels and cardiac risk score (z = 5.23, P < 0.001) were significantly higher in patients with MetS compared with the control group. Smoking was correlated with decreased FMD ( χ2 = 9.26, P = 0.002) in MetS patients but not in the control group. Conclusions: Increased ox-LDL, hs-CRP, and e-NOS are likely to be a result of oxidative stress, a condition in which an imbalance occurs between the production and inactivation of reactive nitrogen and oxygen species. In addition, in patients with MetS, smoking is independently related to endothelial dysfunctio

    ENDOTHELIAL DYSFUNCTION MARKERS IN LOW CARDIOVASCULAR RISK INDIVIDUALS: COMPARISON OF MALES AND FEMALES

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    Background: Cardiovascular diseases (CVD) account for approximately 50% of the total deaths in Turkey. Most of them are related with atherosclerotic coronary heart disease. Predictive value of endothelial dysfunction markers related with the earliest stage of atherosclerosis has been getting more attention. We hypothesized that differences in endothelial dysfunction biochemical markers among genders would aid to capture proatherogenic activity that was not diagnosed by conventional risk assessment scoring systems

    Altered Transcriptional Profile of Mitochondrial DNA-Encoded OXPHOS Subunits, Mitochondria Quality Control Genes, and Intracellular ATP Levels in Blood Samples of Patients with Parkinson's Disease

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    Mitochondrial dysfunctions are significant contributors to neurodegeneration. One result or a cause of mitochondrial dysfunction might be the disruption of mtDNA transcription. Limited data indicated an altered expression of mtDNA encoded transcripts in Alzheimer's disease (AD) or Parkinson's disease (PD). The number of mitochondria is high in cells with a high energy demand, such as muscle or nerve cells. AD or PD involves increased risk of cardiomyopathy, suggesting that mitochondrial dysfunction might be systemic. If it is systemic, we should observe it in different cell types. Given that, we wanted to investigate any disruption in the regulation of mtDNA encoded gene expression in addition to PINK1, PARKIN, and ATP levels in peripheral blood samples of PD cases who are affected by a neurodegenerative disorder that is very well known by its mitochondrial aspects. Our results showed for the first time that: 1) age of onset > 50 PD sporadic (PDS) cases: mtDNA transcription and quality control genes were affected; 2) age of onset <50 PDS cases: only mtDNA transcription was affected; and 3) PD cases with familial background: only quality control genes were affected. mtDNA copy number was not a confounder. Intracellular ATP levels of PD case subgroups were significantly higher than those of healthy subjects. We suggest that a systemic dysregulation of transcription of mtDNA or mitochondrial quality control genes might result in the development of a sporadic form of the disease. Additionally, ATP elevation might be an independent compensatory and response mechanism. Hyperactive cells in AD and PD require further investigation
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