scholarly journals Urokinase Gene 3′-UTR T/C Polymorphism Is Associated with Malignancy and ESRD in Idiopathic Membranous Nephropathy

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Cheng-Hsu Chen ◽  
Shih-Yin Chen ◽  
Kuo-Hsiung Shu ◽  
Mei-Chin Wen ◽  
Chi-Hung Cheng ◽  
...  
Keyword(s):  
Membranous Nephropathy ◽  
Healthy Subjects ◽  
Clinical Manifestations ◽  
Idiopathic Membranous Nephropathy ◽  
Genotype Distribution ◽  
Chain Reaction ◽  
Common Causes ◽  
Disease Entities ◽  
Polymerase Chain ◽  
The Relationship

Idiopathic membranous nephropathy (MN) is one of the most common causes of nephrotic syndrome in adults, and 25% of MN patients proceed to ESRD. Urokinase plasminogen activator (uPA) may play an important role in reducing renal fibrosis. This study was conducted to clarify the relationship between uPA gene polymorphisms and clinical manifestations of MN. We recruited 91 biopsy-diagnosed MN patients and 105 healthy subjects. Genotyping of uPA gene 3′-UTR T/C polymorphism was performed by polymerase chain reaction methods. The genotype distribution had no effect on the development of MN. Thirteen patients (15.9%;P=0.008) acquired malignancies and seventeen (20.7%;P=0.006) patients progressed to ESRD with the C/C genotype, but no patients with the T/C genotype did. In conclusion, we demonstrated that the presence of the uPA gene 3′-UTR C/C genotype was associated with ESRD as well as acquired malignancies in MN patients. These findings should prompt specific considerations for the treatment of MN patients to maintain a balance between treating disease entities and protecting the immune system from cancers.

Using a Polymerase Chain Reaction as a Complementary Test to Improve the Detection of Dermatophyte Fungus in Nails

2014 ◽  
Vol 104 (3) ◽  
pp. 233-237 ◽  
Author(s):  
María José Iglesias Sánchez ◽  
Ana María Pérez Pico ◽  
Félix Marcos Tejedor ◽  
María Jesús Iglesias Sánchez ◽  
Raquel Mayordomo Acevedo
Keyword(s):  
Polymerase Chain Reaction ◽  
Dna Sequences ◽  
Classical Method ◽  
Clinical Manifestations ◽  
Culture Method ◽  
Clinical Samples ◽  
Chain Reaction ◽  
Nested Polymerase Chain Reaction ◽  
Traditional Procedure ◽  
Polymerase Chain

Background Dermatomycoses are a group of pathologic abnormalities frequently seen in clinical practice, and their prevalence has increased in recent decades. Diagnostic confirmation of mycotic infection in nails is essential because there are several pathologic conditions with similar clinical manifestations. The classical method for confirming the presence of fungus in nail is microbiological culture and the identification of morphological structures by microscopy. Methods We devised a nested polymerase chain reaction (PCR) that amplifies specific DNA sequences of dermatophyte fungus that is notably faster than the 3 to 4 weeks that the traditional procedure takes. We compared this new technique and the conventional plate culture method in 225 nail samples. The results were subjected to statistical analysis. Results We found concordance in 78.2% of the samples analyzed by the two methods and increased sensitivity when simultaneously using the two methods to analyze clinical samples. Now we can confirm the presence of dermatophyte fungus in most of the positive samples in just 24 hours, and we have to wait for the result of culture only in negative PCR cases. Conclusions Although this PCR cannot, at present, substitute for the traditional culture method in the detection of dermatophyte infection of the nails, it can be used as a complementary technique because its main advantage lies in the significant reduction of time used for diagnosis, in addition to higher sensitivity.

Seasonal pattern and genotype distribution of sapovirus infection in Japan, 2003–2009

2011 ◽  
Vol 140 (1) ◽  
pp. 74-77 ◽  
Author(s):  
S. K. DEY ◽  
O. PHATHAMMAVONG ◽  
T. D. NGUYEN ◽  
A. THONGPRACHUM ◽  
W. CHAN-IT ◽  
...  
Keyword(s):  
Seasonal Pattern ◽  
Age Groups ◽  
Cold Season ◽  
Viral Gastroenteritis ◽  
Genotype Distribution ◽  
Chain Reaction ◽  
The Family ◽  
Causative Agents ◽  
Polymerase Chain ◽  
Predominant Strain

SUMMARYSapovirus, a member of the family Caliciviridae, is one of the major causative agents of viral gastroenteritis affecting all age groups. A total of 3232 faecal specimens collected from infants and children with gastroenteritis in five different regions of Japan during 2003–2009 were examined for sapovirus by reverse transcription–polymerase chain reaction. Sapoviruses were detected in 131 (4·05%) patients with the peak observed mainly in the cold season (November–March) in Japan during 2003–2009. During the last 6 years, sapovirus GI/1 was the predominant strain in Japan followed by GIV, GII/3, GII/6, GII/2, GII/12 and GI, respectively.

Zebrafish embryos exposed to deltamethrin exhibit abnormalities despite induced expression of related genes (you, you-too, momo and u-boot)

2018 ◽  
Vol 35 (1) ◽  
pp. 11-19
Author(s):  
Kuder Reshma Shabnam ◽  
Dharmapuri Gangappa ◽  
Gundala Harold Philip
Keyword(s):  
Vital Role ◽  
Primary Objective ◽  
Chain Reaction ◽  
Environmental Persistence ◽  
Expression Of Genes ◽  
Pericardial Edema ◽  
Eye Pigmentation ◽  
Polymerase Chain ◽  
Relationship Of ◽  
The Relationship

Evaluation of the toxic effects of a widely used synthetic pyrethroid, deltamethrin (DM), was carried out in this study. This pesticide is preferred for pest control because of its low environmental persistence and toxicity. We investigated the expression pattern of four genes, namely, you ( you), yot ( you-too), momo ( mom) and ubo ( u-boot) during early development of zebrafish, that is, from 12 hpf to 48 hpf stages. These stages are selected as most of the important developmental aspects take place during this period. All four genes are known to play a vital role in development of notochord and somites. To understand the effect of DM on development, embryos of 4 hpf stage were exposed to two concentrations (100 and 200 µg/L) of DM, and observations were made at 12, 24 and 48 hpf stages. Our earlier studies have shown phenotypic abnormalities such as notochord bending, tail deformation, yolk sac and pericardial edema, lightening of body and eye pigmentation and interfered in somite patterning, during these stages of development. Understanding the relationship of phenotypic abnormalities with these four genes has been our primary objective. These four genes were analyzed by Reverse transcription (RT)-polymerase chain reaction and intensity of the bands has shown induction in their expression after exposure to the toxicant. In spite of the expression of genes, it was noticed that DM caused abnormalities. It can be said from the results that translational pathway could have been affected.

scholarly journals No Association of CALCA Polymorphisms and Aseptic Loosening after Primary Total Hip Arthroplasty

2018 ◽  
Vol 2018 ◽  
pp. 1-7 ◽  
Author(s):  
Tünay Aydin-Yüce ◽  
Gina Kurscheid ◽  
Hagen Sjard Bachmann ◽  
Thorsten Gehrke ◽  
Marcel Dudda ◽  
...  
Keyword(s):  
Total Hip Arthroplasty ◽  
Aseptic Loosening ◽  
Hip Arthroplasty ◽  
Fragment Length Polymorphism ◽  
Genotype Distribution ◽  
Chain Reaction ◽  
Total Hip ◽  
Polymerase Chain ◽  
European Group ◽  
Primary Total Hip Arthroplasty

Studies of aseptic loosening showed an influence of calcitonin andα-CGRP, both encoded from the calcitonin/α-CGRP (CALCA) gene by alternative splicing. The aim of this study was to detect a possible association of the CALCA polymorphisms P1(rs1553005), P2(rs35815751), P3(rs5240), and P4(rs2956) with the time to aseptic loosening after THA. 320 patients suffering from aseptic loosening after primary total hip arthroplasty were genotyped for CALCA-P1 polymorphism and 161 patients for CALCA-P2 and CALCA-P3 polymorphisms and 160 patients for CALCA-P4 polymorphism. CALCA genotypes were determined by polymerase chain reaction and restriction-fragment length polymorphism. The genotype distribution of CALCA-P1 was CC 10%, CT 43%, and 46% TT. CALCA-P2 showed a distribution of 90.7%II, 8.7% ID, and 0.6% DD. The CALCA-P3 genotype distribution was 97.5% TT and 2.5% TC. The CALCA-P4 genotype distribution was 48.1% AA, 40% AT, and 11.9% TT. Significant differences between the CALCA genotypes were not found concerning age at implantation and replantation, BMI, gender, and cementation technique. No associations of the time for aseptic loosening were found. In conclusion, we did not find a significant association of CALCA polymorphisms and the time to aseptic loosening after primary THA in a Western European group.

scholarly journals MDR1 polymorphisms are not related to Xeliri and Xelox chemoresistance in colorectal cancer

2019 ◽  
Author(s):  
Ayat B. Al-Ghafari ◽  
Areej M. Alqahtani ◽  
Suzan N. Alturki ◽  
Huda Abdulaziz Al Doghaither ◽  
Hanaa M. Tashkandi ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Drug Response ◽  
Fragment Length Polymorphism ◽  
Protective Role ◽  
Genotype Distribution ◽  
Chain Reaction ◽  
P Glycoprotein ◽  
Significant Difference ◽  
Pcr Rflp ◽  
Polymerase Chain

Abstract Background Multidrug resistance member 1 (MDR1) is located on chromosome 7 and encodes P-glycoprotein (Pgp), which is universally accepted as a drug resistance biomarker. MDR1 polymorphisms may change either the protein expression or function, suggesting its possible association with cancers, including colorectal cancer (CRC). Thus, this study aimed to determine the effects of MDR1 polymorphisms on the drug response of Saudi CRC patients.Methods DNA samples were obtained from 62 CRC patients and 100 healthy controls. The genotypes and allele frequencies of the MDR1 polymorphisms G2677T and T1236C were determined by polymerase chain reaction–restriction fragment length polymorphism (PCR-RFLP).Results No significant difference was observed in the genotype distribution and allele frequency of T1236C between the CRC the patients and the controls. However, G2677T was found to play a highly significant protective role against the progression of CRC. Moreover, the results showed that none of the genotypes in SNPs T1236C and G2677T affected chemoresistance to Xeliri and Xelox.Conclusions T1236C in the MDR1 gene is not related to CRC risk, and G2677T protects against the development of CRC. Both MDR1 polymorphisms are not associated with the risk of chemoresistance.

scholarly journals Continuous Microfluidic Purification of DNA Using Magnetophoresis

Micromachines ◽  
2020 ◽  
Vol 11 (2) ◽  
pp. 187
Author(s):  
Ying Xu ◽  
Zhen Zhang ◽  
Zhen Su ◽  
Xiaoxiang Zhou ◽  
Xiaoming Han ◽  
...  
Keyword(s):  
Dna Isolation ◽  
Fluid Velocity ◽  
Microfluidic System ◽  
Recovery Efficiency ◽  
Ndfeb Magnet ◽  
Chain Reaction ◽  
Dna Recovery ◽  
Fluid Velocities ◽  
Polymerase Chain ◽  
The Relationship

Automatic microfluidic purification of nucleic acid is predictable to reduce the input of original samples and improve the throughput of library preparation for sequencing. Here, we propose a novel microfluidic system using an external NdFeB magnet to isolate DNA from the polymerase chain reaction (PCR) mixture. The DNA was purified and isolated when the DNA-carrying beads transported to the interface of multi-laminar flow under the influence of magnetic field. Prior to the DNA recovery experiments, COMSOL simulations were carried out to study the relationship between trajectory of beads and magnet positions as well as fluid velocities. Afterwards, the experiments to study the influence of varying velocities and input of samples on the DNA recovery were conducted. Compared to experimental results, the relative error of the final position of beads is less than 10%. The recovery efficiency decreases with increase of input or fluid velocity, and the maximum DNA recovery efficiency is 98.4% with input of l00 ng DNA at fluid velocity of 1.373 mm/s. The results show that simulations significantly reduce the time for parameter adjustment in experiments. In addition, this platform uses a basic two-layer chip to realize automatic DNA isolation without any other liquid switch value or magnet controller.

Idiopathic membranous nephropathy preceding membranous lupus nephritis: a case report

Lupus ◽  
2020 ◽  
Vol 29 (3) ◽  
pp. 340-343
Author(s):  
C Gökalp ◽  
G Aygun ◽  
A F Dogan ◽  
U Usta ◽  
I Kurultak ◽  
...  
Keyword(s):  
Systemic Lupus Erythematosus ◽  
Lupus Nephritis ◽  
Lupus Erythematosus ◽  
Membranous Nephropathy ◽  
Adult Population ◽  
Idiopathic Membranous Nephropathy ◽  
Systemic Lupus ◽  
Common Causes ◽  
Membranous Lupus Nephritis

Membranous nephropathy is one of the most common causes of nephrotic syndrome in the adult population. According to the underlying etiology, membranous nephropathy is classified as either primary or secondary. Systemic lupus erythematosus is an autoimmune disease that can affect the kidneys in 50% of patients in the course of the disease. Renal disease may be the first manifestation of systemic lupus erythematosus and the development of systemic findings may be delayed for about 1–5 years following the diagnosis of lupus nephritis. We present a 59-year-old male patient who had a diagnosis of idiopathic membranous nephropathy since 2007 and developed membranous lupus nephritis during the 12-year follow-up without any extrarenal systemic lupus erythematosus findings.

scholarly journals ASSOCIATION BETWEEN MATRIX METALLOPROTEINASE-1 −1607 1G/2G POLYMORPHISM AND CHRONIC PERIODONTITIS IN INDONESIAN POPULATION

2020 ◽  
pp. 15-17
Author(s):  
RAHMATUL HAYATI ◽  
ANTONIUS WINOTO SUHARTONO ◽  
SRI LELYATI MASULILI ◽  
CHRISTOPHER TALBOT ◽  
ELZA IBRAHIM AUERKARI
Keyword(s):  
Matrix Metalloproteinase ◽  
Chronic Periodontitis ◽  
Healthy Subjects ◽  
Genomic Dna ◽  
Chain Reaction ◽  
Chi Square ◽  
Indonesian Population ◽  
Matrix Metalloproteinase 1 ◽  
Significant Difference ◽  
Polymerase Chain

Objective: This study aimed to identify the distribution of matrix metalloproteinase (MMP)-1 −1607 1G/2G alleles and genotypes in subjects withchronic periodontitis and healthy subjects in a sample of Indonesian population and assess the possible association of this polymorphism withsusceptibility to chronic periodontitis.Methods: Genomic DNA samples were obtained from 200 Indonesian males aged 33–78 years old, comprising 100 chronic periodontitis patientsand 100 healthy controls. DNA fragments were amplified by a polymerase chain reaction and analyzed by restriction fragment length polymorphism.Results were analyzed by Chi-square test.Results: The frequency of the 2G allele was high both in subjects with periodontitis (87%) and in controls (91%). Analysis of MMP-1 genotype(−1607 1G/2G) showed no significant difference between the chronic periodontitis and healthy groups (p>0.05).Conclusion: The result found no association between MMP-1 −1607 1G/2G polymorphism and susceptibility to chronic periodontitis in Indonesiansubjects.

scholarly journals Frequency of HLA-DRB1 Gene Alleles in Patients With Multiple Sclerosis in a Lithuanian Population

Medicina ◽  
2012 ◽  
Vol 48 (1) ◽  
pp. 2
Author(s):  
Renata Balnytė ◽  
Daiva Rastenytė ◽  
Dalia Mickevičienė ◽  
Antanas Vaitkus ◽  
Erika Skrodenienė ◽  
...  
Keyword(s):  
Multiple Sclerosis ◽  
Case Control Study ◽  
Case Control ◽  
Chain Reaction ◽  
Female Patients ◽  
History Of ◽  
Male Patients ◽  
Polymerase Chain ◽  
The Relationship ◽  
Control Study

The aim of the present study was to investigate the influence of HLA-DRB1 alleles on the genetic susceptibility to multiple sclerosis in the Lithuanian population. Material and Methods. A total of 120 patients with multiple sclerosis and 120 unrelated healthy controls were enrolled in this case-control study. Allelic frequencies were compared between the groups. HLA-DRB1 alleles were genotyped using the polymerase chain reaction. Results. HLA-DRB1*15 was present in 55.8% of the patients with multiple sclerosis and 10.0% of the controls (OR, 5.58; 95% CI, 3.19–9.77; P<0.0001). The protective alleles that were found to be more prevalent among the controls compared with the patients with multiple sclerosis were HLADRB1* 01 (26.7% vs. 7.5%, P<0.0001), *03 (17.5% vs. 8.3%, P=0.034), and *16 (11.7% vs. 3.3%, P=0.014). HLA-DRB1*15 was more common among the female patients with multiple sclerosis than among the male patients (68.4% vs. 34.1%; OR, 4.18; 95%, CI 1.90–9.22; P=0.001). The heterozygous inheritance of HLA-DRB1*15 allele was more common in the patients with a history of maternal multiple sclerosis than in those with a history of paternal multiple sclerosis (29.4% vs. 9.8%; P=0.045). Conclusions. HLA-DRB1*15 was found to be associated with multiple sclerosis in the Lithuanian population. This allele was more prevalent among the female patients with multiple sclerosis. Maternal multiple sclerosis was more common than paternal multiple sclerosis, but the relationship with HLA-DRB1*15 allele was not established. HLA-DRB1*01, *03, and *16 appeared to be the protective alleles in this series.

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