1.Association between mannose-binding lectin gene polymorphism and frequent relapses in childhood nephrotic syndrome
Journal of Medical Postgraduates 2003;0(09):-
Objective: To determine whether mannose-binding lectin(MBL) variant alleles were associated with frequent relapses in childhood nephrotic syndrome(NS). Methods: MBL alleles of codon 54 and promoter region at positions-550 and-221 were genotyped by means of Polymerase Chain Reaction-Restricted Fragment Length Polymorphism(PCR-RFLP)and PCR-Sequence-Specific Primers(PCR-SSP)assay in 32 China Han Nationality children with frequently relapsing NS(FRNS) and 31 with non-frequently relapsing NS(NFRNS),as well as in 32 healthy control subjects. Results: In patients with upper respiratory infections before relapses,the mutant genotype(GGC/GAC and GAC/GAC) frequency of MBL codon 54 was higher in children with FRNS(76.0%) than in children with NFRNS(42.9%).The B allele mutation frequency of MBL codon 54 was higher in children with FRNS than in healthy control subjects(34.4% vs 12.5%,P
2.Presentation of statistical table in nursing academic paper
Modern Clinical Nursing 2013;(5):86-87
The statistical table is the common presentation way in nursing academic paper? From the standard production of statistical table and combining with editing working practice, this paper analyzed the common usage errors of statistical table with examples in nursing academic papers and put forward some corresponding suggestions?
3.Mannose-binding lectin: From bench to personalized medicine
Journal of Medical Postgraduates 2003;0(05):-
Mannose-binding lectin(MBL) is a key component of the innate immune system that plays a pluripotent role in natural defense.MBL genetic variants are associated with increased susceptibility to and the severity and prognosis of various diseases.The association between low MBL-producing allelic variants and disease risk and/or severity is particularly strong in infectious and autoimmune diseases.Enhanced risk for disease by low MBL producers is particularly the case for children and immunocompromised patients,especially when primary and secondary immune deficiencies coexist.Therefore the use of MBL testing and replacement therapy has reached the threshold of personalized medicine.The author presents a review of the role of MBL in health and diseases,the advances in MBL testing methodology and MBL related therapies.
4.Investigation on the effect of bowel preparation before colonoscopy and its influencing factors
Yuanyuan ZHANG ; Mei′e NIU ; Qianya WANG ; Zhenyun WU ; Jie GU ; Yuanyuan ZHAO ; Xiaohui YANG ;
Chinese Journal of Practical Nursing 2017;33(14):1085-1088
Objective To investigate the effect of bowel preparation before colonoscopy and its influencing factors. Methods A total of 283 patients with colonoscopy were recruited by convenience sampling method. They were investigated with basic information questionnaire of bowel preparation and their intestinal cleanliness were assessed by the Ottawa Assessment Scale. The status of bowel preparation and it′s influenced factors were analyzed. Results The total score of Ottawa Assessment Scale was (5.37 ± 2.22) points, and the efficiency of intestinal cleaning was only 59%(167/283). Logistic regression analysis showed that age (OR=1.033, P=0.013); history of chronic constipation (OR=10.341, P=0.000);history of appendectomy (OR=5.349, P=0.007); walking time during medication (OR=0.350, P=0.000);incomplete intake of the preparation (OR=0.078, P=0.000), the time interval between the initiation of ingestion and the onset of bowel activity (OR=1.034, P=0.000), defecation frequency (OR =0.794, P=0.004);characteristics of last stool (OR=0.159, P=0.000) were influencing factors of intestinal cleanliness. Conclusions The intestinal cleanliness of patients with colonoscopy is still at a low level. In the future, medical personnel should identify patients with risk factors early, and give them specific bowel preparation, so as to improve the quality of bowel preparation effectively.
5.Effect of CHRNA1 genetic polymorphism on neuromuscular blockade induced with rocuronium
Yuanyuan GU ; Yunshui PENG ; Zixian SONG ; Huiqun JIA
Chinese Journal of Anesthesiology 2010;30(8):910-912
Objective To investigate the effect of CHRNA1 genetic polymorphism on neuromuscular blockade induced with rocuronium. Methods Ninety-five ASA Ⅰ or Ⅱ patients of both sexes (age 18-64 yr,BMI 18-25 kg/m2 ) undergoing elective intra-abdominal surgery under general anesthesia were divided into 3 groups according to their genotypes: group Ⅰ AA ( n = 71 ); group Ⅱ AG ( n = 19) and group Ⅲ GG ( n = 5). ECG,BP, HR and SpO2 were continuously monitored during anesthesia. Neuromuscular function was assessed by response of adductor pollicis muscle to stimulation of the ulnar nerve using TOF-Watch SX monitor. Genomic DNA was extracted by using proteinase K digestion followed by a salting out prosedure. rs16862847 polymorphisms were analyzed by PCR-restriction fragment length polymorphism analysis and direct sequence analysis. Anesthesia was induced with fentanyl 4 μg/kg and propofol 2 mg/kg. Rocuronium 0.2 mg/kg was injected iv as soon as the patients lost consciousness. Results The twitch height of adductor pollicis muscle was significantly decreased in group AG and GG as compared with group AA ( P < 0.05). There was no significant difference between group AG and GG.Conclusion CHRNA1 genetic polymorphism can influence the neuromuscular blockade induced with rocuronium,indicating that the genetic factor is one of the reasons contributing to the individual variation in neuromuscular blockade induced with muscle relaxants in patients.
6.Plasma vitamin E and coenzyme Q10 levels and clinical significance in patients with autosomal recessive cerebellar ataxia
Xin ZHANG ; Weihong GU ; Guoxiang WANG ; Yuanyuan CHEN ; Jin ZHANG
Chinese Journal of Neurology 2016;49(6):463-466
Objective To analyze plasma vitamin E and CoQ10 levels in patients with autosomal recessive cerebellar ataxia for finding the evidence of the related pathogenesis research and therapeutic strategies.Methods The plasma vitamin E and CoQ10 levels were detected by high performance liquid chromatography (HPLC) with diode array detector in 123 probands of autosomal recessive cerebellar ataxia pedigrees.Quantitation was performed using vitamin E and CoQ10 external standard and two 5-point calibration curve;clinical manifestations were analyzed simuhaneously.Results Vitamin E and CoQ10 levels of healthy subjects in the plasma were (8.77 ± 2.28) μg/ml and (1.31 ± 0.38) μg/ml,respectively;the plasma vitamin E and CoQ10 levels of patients were (5.61 ± 2.04) μg/ml and (0.79 ± 0.26) μg/ml,respectively,which were significantly lower than those in healthy controls (t =11.87,13.15;all P< 0.01).Clinical manifestations were characterized by cerebellar symptoms,and gait instability was usually the first recognized abnormality.Most of early onset occurred before the age of 25 years (111/123);dysarthria and abnormal eye movement were observed,with cerebellar atrophy on MRI;concomitant symptoms were also present.Conclusions HPLC analysis shows that the plasma vitamin E and CoQ10 levels of patients with autosomal recessive cerebellar ataxia are generally lower than those in the healthy controls.Several patients with significant reductions in these two levels have genetic defects.The combination of clinical phenotypes,biochemical indexes and genetic analyses will be helpful for the establishment of diagnosis and specific treatment.
7.Effects of metformin on expression of AMP-activated protein kinase in rat glomerular mesangial cells
Junfei GU ; Shandong YE ; Shan WANG ; Wenjia SUN ; Yuanyuan HU
Chinese Journal of Nephrology 2014;30(6):451-455
Objective To observe the effects of metformin on expression of Adenosine 5'-monophosphate (AMP)-activated protein kinase (AMPK),nuclear factor-κB (NF-κB) and transforming growth factor β1 (TGF-β1) in cultured rat glomerular mesangial cells (MCs),and explore its renoprotective mechanisms.Methods MCs were cultured in the medium with normal glucose (group NG,5.6 mmol/L),high glucose (group HG,25mmol/L) and different concentrations of metformin (group M1,M2,M3).After 48 h exposure,the supernatants and MCs were collected.The expression of NF-κB and TGF-β1 mRNA was analyzed by real time-PCR.Total-AMPK,phospho-Thr-172 AMPK (p-AMPK),NF -κB p65 and TGF-β1 were visualized by Western blot.Results The real time-PCR and Western blot result showed MCs could express AMPK,NF-κB and TGF-β1 mRNA and protein.After stimulated by HG,the levels of intracellular NF-κB and TGF-β1 expressions were significantly increased compared with group NG (P < 0.05); The levels of NF-κB and TGF-β1 were significantly decreased in group M1,M2 and group M3 compared with group HG in a dose-dependent manner.After stimulated by HG,the level of intracellular p-AMPK were down-regulated compared with group NG(all P < 0.05); The expression of p-AMPK increased with the rising of metformin concentration,presenting the opposite trend (P < 0.05),while the level of total-AMPK protein was unchanged with exposure to HG or different concentrations of mefformin(P > 0.05).Conclusion Metformin can suppress the expression of NF-κB and TGF-β1 of glomerular MCs induced by HG via AMPK activation,which may partly contribute to its reno-protection.
8.Effects of paeonol on RAS occurred on the development of ventricular remodeling after acute myocardial infarction in rats
Yuanyuan GU ; Xiaohui ZHOU ; Qian XU ; Jingyi ZHAO
Tianjin Medical Journal 2015;43(5):470-473
Objective To investigate the effects of paeonol on renin-angiotensin system (RAS) occurred on the development of ventricular remodeling after acute myocardial infarction (AMI) in rats. Methods The left anterior descending coronary artery was ligated to establish the model of AMI in male SD rats. Six groups were set up:sham-operation group, AMI model group, captopril control group, paeonol low dose group (6 mg/kg), paeonol middle dose group (9 mg/kg) and paeonol high dose group (12 mg/kg). Rats were given treatment for 4 weeks after the AMI model was established. HE staining was used to observe changes of myocardial tissue. Real-time PCR was used to detect the mRNA levels of angiotensinogen (AGT), angiotensin Ⅱ receptor type1(AGTR1) and endothelin (ET)-1 of six groups. Western blot assay was used to detect the protein levels of peptidyl-dipeptidase A (ACE), angiotensin Ⅱ(Ang)-Ⅱand AGTR1 in six groups. Results The transcription of AGT, AGTR1, ET-1mRNA and the expressions of ACE, Ang-Ⅱ and AGTR1 protein were significantly higher in myocardial tissue of AMI rats than those of sham-operation rats (P<0.05). Compared with model group, the expressions of AGT, AGTR1, ET-1mRNA and ACE, Ang-Ⅱ, AGTR1 protein were significantly decreased in paeonol high dose group and captopril control group (P<0.05). Paeonol reduced the expressions of those mRNA and protein levels in a significant dose dependent manner. Conclusion Paeonol can slow down the deterioration of the ventricular remodeling after AMI in rats, which may be related to the inhibition of over-activation of RAS.
9.Homozygosity mapping and mutation analysis of a consanguineous marriage family with autosomal recessive cerebellar ataxia
Ying HAO ; Weihong GU ; Yuanyuan CHEN ; Jin ZHANG
Chinese Journal of Neurology 2015;48(5):400-405
Objective To identify the pathogenic gene for a Chinese Han consanguineous marriage family with autosomal recessive cerebellar ataxia by homozygosity mapping and mutation analysis.Methods Six members of the family were enrolled in this study,including 3 patients,the unaffected sibling and their parents of first cousin marriage.After excluding GAA repeats mutation of FXN gene,whole-genome single nucleotide polymorphism (SNP) microarray scanning and homozygosity mapping were performed to localize the candidate gene.The coding regions and intronic flanking sequences of the candidate genes were analyzed.Results Four candidate regions were identified,including 2p25.3,9q22.2-34.3,13q12.3-14.3 and 17p13.The SETX gene localizing in 9q22.2-34.3 that is responsible for ataxia with oculomotor apraxia 2 was analyzed at first.There were 4 mutations in exon 10,including three missense mutations (c.3576T > G,p.D1192E ; c.3754G > A,p.G1252R; c.4156A > G,p.I1386V) and a deletion mutation (c.5084_5087delAGTC,p.Q1695_S1696del).Three patients were homozygous of the 4 mutations,an unaffected sibling was normal,and their parents were heterozygous of 4 mutations.Conclusions The pathogenic haplotype comprising four mutations of the SETX gene was identified in the consanguinity family.c.5084_5087delAGTC (p.Q1695_S1696del) is a novel mutation.The affected individuals of this family were characterized by mild phenotype and slow progress without oculomotor apraxia,indicating the clinical variability of the disease.
10.Literature analysis on drug-induced diseases of vital organs caused by traditional Chinese medicine injection
Yuanyuan GU ; Fei ZHENG ; Wenya LIU ; Ying GONG ; Guodong HUA
International Journal of Traditional Chinese Medicine 2015;(6):543-547
ObjectiveTo study the occurrence and influence factors of drug-induced injuries of vital organs caused by traditional Chinese medicine injection.MethodsChina Hospital Knowledge Database (CHKD) from 1993-2013 and case reports concerning adverse effects and drug-induced diseases caused by traditional Chinese medicine injection from Wanfang Data Knowledge Service Platformwere retrieved. Indicator systemwasestablished and relevant contentsweresummarized and analyzed.Results34 types of traditional Chinese medicine injectionswereincluded and 699 drug-induced diseasesweresummarized, taking up 53.98% of the total adverse effects. Among them, the top three included in the drug-induced diseaseswere acanthopanax injection, safflower injection and Mailuoning injection. The non-conformance between the traditional Chinese medicine injections in the literature and instructions mainly reflects unreasonable solvent selection, large compatibility concentration and usage and dosage beyond those specified in the instructions. ConclusionThe occurrence of drug-induced injuries of vital organs caused by traditional Chinese medicine injectionis relatively high, drug instructions shall be strictly followed in accordance with requirements during clinical application.