scholarly journals Lack of Association Between Variants within the AHSG, HCRT and NPY2R Genes and Anthropometrical Parameters in Czech Post-Monica Study

2013 ◽  
Vol 16 (1) ◽  
pp. 63-68 ◽  
Author(s):  
L Jurcikova ◽  
V Adamkova ◽  
V Lanska ◽  
P Suchanek ◽  
J.A. Hubacek
Keyword(s):  
Plasma Lipids ◽  
Potential Effect ◽  
Nucleotide Polymorphisms ◽  
Genetic Determinants ◽  
Single Nucleotide ◽  
Pcr Rflp ◽  
Lower Triglyceride Level ◽  
Polymerase Chain ◽  
Monica Project ◽  
Ahsg Gene

Abstract The aim of this study was to examine single nucleotide polymorphisms (SNPs) of candidate genes α2-Heremans-Schmid glycoprotein (AHSG, rs4917), Hypocretin (HCRT, rs760282) and Neuropetide Y2 receptor (NPY2R, rs 1047214), which are known to have a potential effect on body mass index (BMI) and other indicators of obesity. A population study was performed in 2007/2008 on 2559 adults (1191 males and 1368 females) from the Czech post-MONICA project. The SNPs were examined using the polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) method. We did not find any significant association between the examined SNPs and BMI across the whole population. A significantly lower triglyceride level was found in the AHSG gene CC homozygotes compared to T allele carriers in the entire population (p = 0.009). In conclusion, we are not able to confirm the hypothesis that polymorphisms within the AHSG, HCRT and NPY2R genes are major genetic determinants of BMI and plasma lipids in the Czech-Slavonic population.

scholarly journals Association of non-synonymous SNPs of <i>OPN</i> gene with litter size traits in pigs

2015 ◽  
Vol 58 (2) ◽  
pp. 317-323 ◽  
Author(s):  
T. Kumchoo ◽  
S. Mekchay
Keyword(s):  
Litter Size ◽  
Reproductive Traits ◽  
Snp Markers ◽  
Strong Linkage Disequilibrium ◽  
Nucleotide Polymorphisms ◽  
Large White ◽  
Single Nucleotide ◽  
Pcr Rflp ◽  
Polymerase Chain ◽  
Acid Exchange

Abstract. Osteopontin (OPN) gene is a secreted phosphoprotein which appears to play a key function in the conceptus implantation, placentation and maintenance of pregnancy in pigs. The objectives of this study were to verify the non-synonymous single nucleotide polymorphisms (SNPs) and their association with litter size traits in commercial Thai Large White pigs. A total of 320 Thai Large White sows were genotyped using the polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) method. Three SNPs at c.425G> A, c.573T> C and c.881C> T revealed amino acid exchange rates of p.110Ala> Thr, p.159Val> Ala and p.262Pro> Ser, respectively, and were then segregated. These three SNPs were significantly associated with total number born (TNB) and number born alive (NBA) traits. No polymorphisms of the two SNP markers (c.278A> G and c.452T> G) were observed in this study. Moreover, the SNPs at c.425G> A and c.573T> C were found to be in strong linkage disequilibrium. The association of OPN with litter size emphasizes the importance of porcine OPN as a candidate gene for reproductive traits in pig breeding.

scholarly journals Impact of Genetic Variation in TLR4 3′UTR on NSCLC Genetic Susceptibility

2020 ◽  
Vol 2020 ◽  
pp. 1-7 ◽  
Author(s):  
Hongjiao Wu ◽  
Hui Gao ◽  
Ang Li ◽  
Yuning Xie ◽  
Zhenxian Jia ◽  
...  
Keyword(s):  
Genetic Susceptibility ◽  
Nucleotide Polymorphisms ◽  
Single Nucleotide ◽  
Lung Cancer Patients ◽  
Pathological Type ◽  
Gender And Age ◽  
Pcr Rflp ◽  
Polymerase Chain ◽  
Affect Gene Expression ◽  
Control Study

Toll-like receptors (TLRs) are expressed not only in immune cells but also in a variety of tumor cells. Single-nucleotide polymorphisms (SNPs) located in the TLRs’ promoter or the 3′ untranslated region may affect gene expression by affecting the activity of the promoter or regulating the binding of mRNA to miRNA. This study aimed to investigate the association of the SNPs in TLR genes with the susceptibility to NSCLC. This case-control study involved 700 lung cancer patients and 700 healthy controls. All individuals were genotyped for all selected SNPs in TLR genes using polymerase chain reaction (PCR) test-based restriction fragment length polymorphism (PCR-RFLP) and TaqMan SNP genotyping assay. The association of genetic variations in TLRs with the susceptibility to NSCLC was evaluated by unconditional logistic regression with OR (95% CI). After evaluating transcriptional factor or miRNA binding capability by bioinformatics methods, six TLRs were identified for further analysis. We did not find that TLR3 rs5743303, TLR4 rs1927914, TLR4 rs11536891, TLR5 rs1640816, and TLR7 rs3853839 were associated with NSCLC risk (P>0.05). Our data showed that TLR4 rs7869402 C > T polymorphism reduced the risk of NSCLC with OR (95% CI) of 0.63 (0.45–0.89). When stratified by gender and age, the individuals carrying at least one rs7869402T allele significantly decreased the NSCLC risk among males (OR = 0.58, 95% CI = 0.38–0.87) and among youngsters (OR = 0.43, 95% CI = 0.27–0.69). Smoking stratification analysis showed that the rs7869402T allele-containing genotype reduced the risk of NSCLC with OR (95% CI) of 0.50 (0.29–0.87) among smokers but not among nonsmokers (P>0.05). When the individuals were classed by the pathological type, we found that the rs7869402T-containing genotype was associated with the risk of adenocarcinoma (OR = 0.62, 95% CI = 0.41–0.92) but not with that of squamous cell carcinoma (OR = 0.71, 95% CI = 0.44–1.13) and other types (OR = 0.23, 95% CI = 0.03–1.70). Compared with the TLR4 Ars1927914-Crs7869402-Trs11536891 haplotype, the Grs1927914-Trs7869402-Trs11536891 haplotype was associated with a decreased risk for developing NSCLC with OR (95% CI) of 0.57 (0.41–0.80). These results indicated that the TLR4 rs7869402 variation affects the genetic susceptibility to NSCLC.

scholarly journals A Protocol for Rapid and Inexpensive Genotyping of Mutant Mice from Dried Blood Spots: An Update

2021 ◽  
Author(s):  
Antonella Romano ◽  
Candida Zuchegna ◽  
Giuseppa Zannini ◽  
Roberta Grillo ◽  
Samantha Messina ◽  
...  
Keyword(s):  
Dna Extraction ◽  
Genomic Dna ◽  
Fragment Length Polymorphism ◽  
Dna Amplification ◽  
Dried Blood Spots ◽  
Nucleotide Polymorphisms ◽  
Single Nucleotide ◽  
Pcr Rflp ◽  
Polymerase Chain ◽  
Sensitivity Specificity

Abstract Background: Dried blood spot (DBS) testing is a well-known method of bio-sampling by which blood samples are blotted and dried on filter paper. The dried samples can then be analyzed by several techniques such as DNA amplification and HPLC. We have developed a homemade DBS method followed by an alternative protocol for genomic DNA extraction from a drop of blood adsorbed on paper support. This protocol consists of two separate steps: (1) organic DNA extraction from the DBS, followed by (2) DNA amplification by polymerase chain reaction (PCR). The PCR-restriction fragment length polymorphism (PCR-RFLP) is an advantageous and simple approach to detect single nucleotide polymorphisms (SNPs). Results: We have evaluated the efficiency of our method for the extraction of genomic DNA from DBS by testing its performance in genotyping mouse models of obesity and herein discuss the sensitivity, specificity and feasibility of this novel procedure. Conclusions: Our protocol is easy to perform, fast and inexpensive and allows the isolation of pure DNA from a miniscule amount of sample.

The Association of CYP2D6*4 and POR*28 Polymorphisms on Mirtazapine Plasma Level in Subjects with Major Depressive Disorder and Anxiety Disorders

2020 ◽  
Vol 23 (10) ◽  
pp. 1032-1040
Author(s):  
Fezile Ozdemir ◽  
Emrah Dural ◽  
Nilay Sedes Baskak ◽  
Yağmur Kır ◽  
Bora Baskak ◽  
...  
Keyword(s):  
Plasma Level ◽  
Plasma Levels ◽  
Psychiatric Patients ◽  
Nucleotide Polymorphisms ◽  
Major Depressive ◽  
Single Nucleotide ◽  
Pcr Rflp ◽  
Genes Encoding ◽  
Study Population ◽  
Polymerase Chain

Aims and Objective: The plasma level of mirtazapine (MIR) varies between individuals primarily depending on the differences in metabolism during pharmacotherapy. CYP2D6 takes the role as a major enzyme in MIR metabolism and POR enzyme donates an electron to CYP2D6 for its activity. Single nucleotide polymorphisms in the genes encoding pharmacokinetic enzymes may cause changes in enzyme activity, leading to differences in metabolism of the drug. Our aim was to assess the influence of CYP2D6*4 and POR*28 polymorphisms on MIR plasma levels in Turkish psychiatric patients. Materials and Methods: The association between genetic variations and plasma level of MIR was investigated on 54 patients. CYP2D6*4 and POR*28 polymorphisms were analysed using Polymerase Chain Reaction- Restriction Fragment Length Polymorphism (PCR-RFLP) and plasma MIR levels were measured using HPLC. Results: Allele frequencies of CYP2D6*4 and POR*28 were 0.11 and 0.39, respectively in the study population. The results showed that CYP2D6*4 allele carriers have higher C/D MIR levels while POR*28 allele carriers have lower C/D MIR levels. Combined genotype analyses also revealed that individuals with CYP2D6*1/*1 - POR*28/*28 genotype have a statistically lower C/D MIR level (0.95 ng/ml/dose) when compared with individuals with CYP2D6*1/*1 - POR*1/*1 genotype (1.52 ng/ml/dose). Conclusion: Our results indicate that CYP2D6*4 and POR*28 polymorphisms may have a potential in the explanation of differences in plasma levels in MIR treated psychiatric patients. A combination of these variations may be beneficial in increasing drug response and decreasing adverse drug reactions in MIR psychopharmacotherapy.

scholarly journals Association of Interleukin-8 with Cachexia from Patients with Low-Third Gastric Cancer

2009 ◽  
Vol 2009 ◽  
pp. 1-6 ◽  
Author(s):  
Bo Song ◽  
Dianliang Zhang ◽  
Shuchun Wang ◽  
Hongmei Zheng ◽  
Xinxiang Wang
Keyword(s):  
Gastric Cancer ◽  
Cancer Cachexia ◽  
Haplotype Analysis ◽  
Positive Association ◽  
Serum Levels ◽  
Nucleotide Polymorphisms ◽  
Single Nucleotide ◽  
Increased Risk ◽  
Pcr Rflp ◽  
Polymerase Chain

Background. Interleukin (IL)-8 has been implicated in the development of cancer cachexia. The polymorphism of IL-8 gene, which may affect the production level of IL-8, may be associated with cancer cachexia.Methods. The serum IL-8 level in our study was examined by radioimmunoassay. We also analyzed single nucleotide polymorphisms (SNPs) −251 A/T and +781 C/T of IL-8 gene, using polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP).Results. The serum levels of IL-8 were significantly elevated in patients with low-third gastric cancer compared with controls, and were further up-regulated in patients with cachexia than those without (Z=−3.134,P=.002). A significantly increased frequency of +781 T allele was noted in patients with cachexia (OR=2.247, 95% CI: 1.351–3.737,P=.002). The +781 TT genotype was observed to be associated with a significantly increased risk of cachexia (OR=3.167, 95% CI: 1.265–7.929,P=.011), and with odds ratio of 3.033 (95% CI: 1.065–8.639,P=.038) for cachexia after adjusting for potential confounding factors. Meanwhile, haplotype analysis indicated a borderline positive association betweenT251T781haplotype and cachexia as compared with theT251C781haplotype (OR=4.92, 95% CI: 1.00–24.28;,P=.053).Conclusions. IL-8 appears to be associated with cachexia from patients with low-third gastric cancer.

scholarly journals Effect of porcine IL-6 polymorphism on litter size traits in commercial pig breeds

2020 ◽  
Vol 19 (2) ◽  
pp. 237-246
Keyword(s):  
Polymerase Chain Reaction ◽  
Litter Size ◽  
Fragment Length Polymorphism ◽  
Nucleotide Polymorphisms ◽  
Chain Reaction ◽  
Large White ◽  
Single Nucleotide ◽  
Pcr Rflp ◽  
Polymerase Chain ◽  
Restriction Fragment Length

This study aimed to verify the polymorphisms in the porcine IL-6 gene and to elucidate its effects on litter size traits in Large White and Landrace sows. Four single nucleotide polymorphisms (SNPs) of the porcine IL-6 gene (g.91506415A>G, g.91507983A>G, g.91508173C>T, and g.91508716C>T) were genotyped using the polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) method. There was no polymorphism observed on the three SNPs (g.91506415A>G, g.91507983A>G, and g.91508716C>T) of the porcine IL-6 gene. The porcine IL-6 g.91508173C>T polymorphism was found to be segregating in Large White and Landrace sows. The porcine IL-6 g.91508173C>T polymorphism was significantly associated with the total number born (TNB) and the number of piglets weaned alive (NWA) traits in Large White sows (P<0.05). Moreover, the porcine IL-6 g.91508173C>T polymorphism was significantly associated with the TNB, number born alive (NBA), and NWA traits in Landrace sows (P<0.05). These results indicated that the porcine IL-6 g.91508173C>T polymorphism was associated with litter size traits. These findings confirmed the importance of the IL-6 gene as a candidate gene for litter size traits in pigs.

scholarly journals FADS and PPARG2 Single Nucleotide Polymorphisms are Associated with Plasma Lipids in 9-Mo-Old Infants

2019 ◽  
Vol 149 (5) ◽  
pp. 708-715 ◽  
Author(s):  
Lotte Lauritzen ◽  
Ingvild D Amundsen ◽  
Camilla T Damsgaard ◽  
Mads V Lind ◽  
Theresia M Schnurr ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Single Nucleotide Polymorphisms ◽  
Ldl Cholesterol ◽  
Plasma Lipids ◽  
Hdl Cholesterol ◽  
Potential Effect ◽  
Effect Modification ◽  
Minor Allele ◽  
Nucleotide Polymorphisms ◽  
Single Nucleotide

ABSTRACT Background Dietary intake of polyunsaturated fatty acids (PUFAs), e.g., linoleic acid and n–3 (ω-3) long-chain PUFAs, has been shown in adults to affect plasma cholesterol and triglycerides (TGs), respectively. Little is known about the effects of PUFAs on plasma lipids in early life. Objective The aim of this study was to explore the associations between plasma concentrations of total, LDL, and HDL cholesterol and TGs in infants and 2 single nucleotide polymorphisms (SNPs) in the fatty acid desaturase genes (FADS) oppositely associated with docosahexaenoic acid (rs1535 and rs174448) and potential effect modification by a functional peroxisome proliferator-activated receptor-γ2 gene variant (PPARG2 Pro12Ala). Methods In 9-mo-old infants (n = 561) from 3 Danish cohorts, we analyzed associations between plasma lipids, erythrocyte PUFAs, and FADS SNPs, and interactions with PPARG2 Pro12Ala genotype, by multiple linear regression. We also examined potential effect modification by breastfeeding, as 46% of the infants were still being breastfed. Results Minor allele carriage of rs174448 was associated with lower total cholesterol (difference: −0.22 mmol/L; 95% CI: −0.37, −0.06 mmol/L; P = 0.006) and LDL cholesterol (difference: −0.15 mmol/L; 95% CI: −0.29, −0.01 mmol/L; P = 0.035), but no associations were observed with TGs or for rs1535. Minor allele carriage of both FADS SNPs was associated with 1 SD lower HDL cholesterol, but only in currently breastfed infants (rs174448 × breastfeeding, P = 0.080; rs1535 × breastfeeding, P = 0.030) and PPARG2 minor allele carriers (rs174448 × PPARG2, P = 0.001; rs1535 × PPARG2, P = 0.004). Erythrocyte arachidonic acid and eicosapentaenoic acid were inversely associated with LDL cholesterol [estimated effect (β): −0.3 mmol/L; 95% CI: −0.06, −0.00 mmol/L per percentage of fatty acids (FA%); P = 0.035] and TGs (β: −0.23 mmol/L; 95% CI: −0.41, −0.05 mmol/L per FA%; P = 0.015), respectively. Conclusions The observed associations with FADS variants indicate that PUFAs are involved in plasma lipid regulation in 9-mo-old infants. Observed FADS SNP differences and interactions with breastfeeding and PPARG2 warrant additional studies to explore the effects of individual FADS SNPs on PUFA status and potential genetic modification of dietary PUFA effects.

scholarly journals Μελέτη παραγόντων της αγγειακής επασβέστωσης σε ασθενείς με διαβητική νεφροπάθεια

2019 ◽  
Author(s):  
Στέφανος Ρουμελιώτης
Keyword(s):  
Fragment Length Polymorphism ◽  
Matrix Gla Protein ◽  
Enzyme Linked Immunosorbent Assay ◽  
Nucleotide Polymorphisms ◽  
Single Nucleotide ◽  
Pcr Rflp ◽  
Epoxide Reductase ◽  
Polymerase Chain

Η Χρόνια Νεφρική Νόσος (ΧΝΝ) αποτελεί ένα σημαντικό επιδημιολογικό πρόβλημα, με αυξανόμενη συχνότητα και επιπολασμό και υψηλό κόστος στα εθνικά συστήματα υγείας, παγκοσμίως. Η κυριότερη αιτία της ραγδαίας αύξησης του επιπολασμού της νεφρικής νόσου την τελευταία εικοσαετία είναι η αύξηση του επιπολασμού του Σακχαρώδη Διαβήτη Τύπου 2 (ΣΔΤ2), της συχνότερης αιτίας της νεφροπάθειας. Στους ασθενείς με διαβητική νεφροπάθεια (ΔΝ), ακόμα και στα αρχικά στάδια, παρατηρείται επιταχυνόμενη επασβέστωση των αγγείων και συνεπώς η καρδιαγγειακή νόσος αποτελεί την πρώτη αιτία θνητότητας και νοσηρότητας.Η Matrix Gla Protein (MGP) αποτελεί την πρώτη πρωτεΐνη που αναγνωρίστηκε in vitro και in vivo ως ισχυρός αναστολέας αγγειακής επασβέστωσης (ΑΕ). Πρόκειται για μία βιταμινο-Κ εξαρτώμενη πρωτεΐνη 84 αμινοξέων, μοριακού βάρους 12 kDa, που εκφράζεται από τα χονδροκύτταρα και τα λεία μυϊκά κύτταρα του αγγειακού τοιχώματος. Για να γίνει βιολογικά δραστική η MGP πρέπει να υποστεί γ-καρβοξυλίωση και φωσφορυλίωση, διαδικασίες που εξαρτώνται από τις διαθέσιμη ποσότητα βιταμίνης Κ. Η ανενεργός, μη-καρβοξυλιωμένη, μη-φωσφορυλιωμένη μορφή της MGP (dpucMGP) έχει σχετιστεί επανειλημμένως με ανάπτυξη ΑΕ, αλλά και με εξέλιξη της ΧΝΝ.Αρκετές μελέτες έχουν δείξει πως εκτός από διαιτητικούς, εμπλέκονται και γενετικοί παράγοντες στον κύκλο της βιταμίνης Κ (ανακύκλωση της βιταμίνης Κ) και μπορούν να οδηγήσουν σε μειωμένη δραστικότητα της MGP και συνεπώς σε ΑΕ. Η υπομονάδα 1 του συμπλόκου της αναγωγάσης του εποξειδίου της βιταμίνης Κ (Vitamin K Epoxide Reductase Complex Subunit 1 – VKORC1) είναι βασικό συστατικό του κύκλου της βιταμίνης Κ, καθώς είναι το υπεύθυνο ένζυμο για την ολοκλήρωση της μετατροπής του εποξειδίου της βιταμίνης Κ σε βιταμίνη Κ και συνεπώς, της ανακύκλωσής της. Μονονουκλεοτιδικοί γονιδιακοί πολυμορφισμοί (single nucleotide polymorphisms, SNPs) στο γονίδιο που κωδικοποιεί το υπεύθυνο ένζυμο για την ανακύκλωση της βιταμίνης Κ έχουν συσχετιστεί με επιταχυνόμενη ΑΕ της αορτής. Στην περιοχή του υποκινητή του γονιδίου VKORC1 έχει ταυτοποιηθεί ο πολυμορφισμός -1639G>A. Φορείς του G αλληλομόρφου εμφανίζουν αυξημένη κατά 44% δραστικότητα του υποκινητή και αυξημένα επίπεδα ενζύμου VKORC1. Ένας άλλος παράγοντας που επηρεάζει τα επίπεδα της βιταμίνης Κ είναι η απολιποπρωτεϊνη Ε (apoE) η οποία διευκολύνει την κυτταρική πρόσληψη των χυλομικρών που αποτελούν το φορέα μεταφοράς της βιταμίνης Κ στο αίμα. Τα τρία συνηθισμένα αλληλόμορφα της apoE διαφέρουν στην ικανότητά τους να διευκολύνουν την κάθαρση των πλούσιων σε βιταμίνη Κ λιποπρωτεϊνών από την κυκλοφορία με αποτέλεσμα τα επίπεδα πλάσματος της βιταμίνης Κ να μεταβάλλονται στους φορείς των τριών αλληλομόρφων της apoE. Το γονίδιο που κωδικοποιεί την MGP έχει οκτώ SNPs στον υποκινητή και στις περιοχές κωδικοποίησης. O πολυμορφισμός T-138C (rs 1800802) βρίσκεται σε περιοχή του υποκινητή που είναι απαραίτητος για τη μεταγραφή στα λεία μυϊκά κύτταρα των αγγείων. Αρκετοί ερευνητές έχουν δείξει πως η κυκλοφορούσα dpucMGP είναι ανεξάρτητος παράγοντας κινδύνου για ολική και ΚΑ θνητότητα σε διάφορους πληθυσμούς.Στην παρούσα μελέτη, σε διαβητικούς ασθενείς με ΔΝ και σε διαβητικούς χωρίς ΔΝ, μετρήθηκαν τα επίπεδα της κυκλοφορούσας dpucMGP, το πάχος του Ε-ΜΧΚ -ως υποκλινικού δείκτη αθηροσκλήρωσης-, και εκτιμήθηκε η επίδραση γενετικών πολυμορφισμών των γονιδίων των MGP, VKORC1 και apoE σε σχέση με το πάχος του Ε-ΜΧΚ και τα επίπεδα της dpucMGP. Επίσης αξιολογήθηκε η επίδραση των παραπάνω παραγόντων στην ολική και ΚΑ θνητότητα, τα ΚΑ επεισόδια και την εξέλιξη της νεφρικής νόσου στον πληθυσμό αυτό.Η γονοτύπηση των πολυμορφισμών του VKORC1-1639G>A, της MGP -138 T>C και της apoE πραγματοποιήθηκε με τη μέθοδο PCR-RFLP (polymerase chain reaction-restriction fragment length polymorphism) σε 40 ασθενείς με ΣΔΤ2 και φυσιολογική νεφρική λειτουργία (ομάδα ελέγχου) και 118 ασθενείς με διάφορα στάδια διαβητικής ΧΝΝ (1-5, συμπεριλαμβανομένων ασθενών υπό αιμοκάθαρση με τεχνητό νεφρό- ΤΝ). Τα επίπεδα της dp-ucMGP του πλάσματος υπολογίστηκαν με τη μέθοδο ELISA (enzyme-linked immunosorbent assay). Σε όλους τους ασθενείς της μελέτης μετρήθηκε υπερηχογραφικά το πάχος του έσω-μέσου χιτώνα της κοινής καρωτίδας αρτηρίας (Ε-ΜΧΚ), με υψηλής ευκρίνειας υπερηχογραφικό μηχάνημα Doppler. Ο πληθυσμός της μελέτης παρακολουθήθηκε για μια 7ετία, με καταληκτικά σημεία την ολική θνητότητα, την ΚΑ θνητότητα και τα ΚΑ συμβάντα (θανατηφόρα και μη).Τα επίπεδα πλάσματος dpucMGP και η τιμή του πάχους Ε-ΜΧΚ σχετίστηκαν στατιστικά σημαντικά με την εξέλιξη της ΔΝ (P<0,0001 και P=0,004 αντιστοίχως). Η συγκέντρωση της dpucMGP ορού δε σχετίστηκε με κανέναν από τους τρεις πολυμορφισμούς ή το πάχος E-MXK. Ενώ οι πολυμορφισμοί VKORC1 -1639G > A και apoE δε σχετίστηκαν, ο πολυμορφισμός MGP T-138C σχετίστηκε με το πάχος του Ε-ΜΧΚ. Οι TT ομοζυγώτες εμφάνιζαν υψηλότερες πάχους Ε-ΜΧΚ συγκριτικά με τους γονότυπους TC και CC μαζί (P=0,006). Ο MGP T-138C ήταν ανεξάρτητος προγνωστικός παράγοντας του πάχους Ε-ΜΧΚ, μετά από προσαρμογή για αρκετούς παράγοντες κινδύνου για ΑΕ (P<0,0001). Επιπλέον, οι ομοζυγώτες ΤΤ εμφάνισαν μεγαλύτερη συχνότητα στην ομάδα των ασθενών υπό ΤΝ σε σύγκριση με την ομάδα της ΧΝΝ σταδίων 1-4 (P= 0,002). Κατόπιν προσαρμογής για αρκετούς παράγοντες κινδύνου, η πολυπαραγοντική ανάλυση Cox έδειξε πως οι ασθενείς με τον γονότυπο TT είχαν σχεδόν 5-πλάσιο κίνδυνο για ολική θνητότητα (Hazard Ratio -HR 4,67, 95% Confidence Interval -CI 1,37-15,94, P=0,01) και ΚΑ θνητότητα (HR 5,07, 95% CI 1,07-24,09, P=0,04) σε σχέση με τους ασθενείς που είχαν τους γονότυπους TC/CC. Στην υπο-ομάδα των ασθενών που μετρήθηκε η dpucMGP, η πολυπαραγοντική ανάλυση Cox έδειξε πως η υψηλή dpucMGP πλάσματος> 646 pM είναι ανεξάρτητος παράγοντας κινδύνου για ολική θνητότητα – [HR 2,97, 95% CI 1,27-6,95, P=0,012], KA θνητότητα - (HR 5,49, 95% CI 1,85-16,33, P=0,002) και εμφάνιση ΚΑ συμβάματος- (HR 2,07 95% CI 1,00-4,20, P=0,047) συγκριτικά με τους ασθενείς στην ομάδα της χαμηλής dpucMGP.Καθώς η MGP αποτελεί σημαντικό αναστολέα της ιστικής και αγγειακής επασβέστωσης, η μελέτη μας υποδεικνύει ότι μάλλον υπάρχει γενετική βάση στην επασβέστωση των ασθενών με διαβητική νεφροπάθεια. Θα μπορούσαμε να υποθέσουμε ότι ο πολυμορφισμός T-138C της MGP ίσως προδιαθέτει γενετικά στην έκφραση της αγγειακής επασβέστωσης.

scholarly journals CD24 GENE POLYMORPHISMS IN EGYPTIAN PATIENTS WITH COLORECTAL CANCER

2021 ◽  
Vol 9 (10) ◽  
pp. 337-348
Author(s):  
Eman Saber Elhennawy ◽  
Abeer Mesbah Abd-El Hamid ◽  
Tharwat Saad Kandil ◽  
Mohammed Mohammed El-Sayed El-Arman ◽  
Rasha Elzehery
Keyword(s):  
Colorectal Cancer ◽  
Fragment Length Polymorphism ◽  
Multivariate Logistic Regression Analysis ◽  
Control Group ◽  
Nucleotide Polymorphisms ◽  
Single Nucleotide ◽  
Egyptian Patients ◽  
Pcr Rflp ◽  
Polymerase Chain ◽  
Apparently Healthy

Introduction: Early detection of colorectal cancer (CRC) is the key to reduce its related morbidity and mortality. Methods: One hundred CRC patients were included in this study, they were admitted at Mansoura Gastroenterology Center, Mansoura University and diagnosis was confirmed by pathology.100 apparently healthy individuals were served as the control group.CD24 (P170 C/T) and CD24 (P-534 A/C) single nucleotide polymorphisms (SNPs) were analyzed using polymerase chain reaction–restriction fragment length polymorphism (PCR/RFLP). Results: Regarding CD24 P170 C/T SNP, no statistically significant association was found between genotypes, alleles and risk of CRC. While, P-534 A/C; AC, CC, AC+CC genotypes and C allele showed significantly higher frequency in cases when compared to controls. CC and TC haplotypes were significantly associated with risk of CRC when compared to control group. Multivariate logistic regression analysis revealed that higher CEA and P-534 A/C (AC+CC) were considered as independent predictors of higher CRC stages. Conclusion: The current study observed an association between CD24 P-543 A/C SNP and the risk of developing CRC in Egyptian subjects.

scholarly journals Intergenic interactions and genetic polymorphism in increasing the probability of alcoholic dependence

2021 ◽  
pp. 92-105
Author(s):  
Evgenii V. Snytkov ◽  
Vyacheslav N. Kipen ◽  
Aleksandr V. Kazachok ◽  
Sergei B. Melnov
Keyword(s):  
Alcohol Dependence ◽  
Association Studies ◽  
Molecular Genetic ◽  
Molecular Genetic Analysis ◽  
Genome Wide Association Studies ◽  
Nucleotide Polymorphisms ◽  
Single Nucleotide ◽  
Genome Wide ◽  
Pcr Rflp ◽  
Polymerase Chain

The results of molecular genetic analysis of 13 polymorphic variants of genes, according to the data of genome-wide association studies (GWAS) associated with the development of addictive states, in the group of persons with alcohol dependence (n = 142) and in the comparison group (n = 211) are presented. The main genotyping method is polymerase chain reaction (PCR) followed by high resolution melting (HRM) and clustering of melting profiles; the melting results are validated using the restriction fragment length polymorphism (PCR-RFLP) method. As a result, single nucleotide polymorphisms associated with an increased likelihood of alcohol dependence are genotype GG (rs7085104, AS3MT); genotype GG (rs7590720, PECR); allele C (rs11191580, NT5C2); allele T (rs17504622); allele A (rs73229090, EPHX2); allele A (rs1109501, MUC7 ). 

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