Objective To evaluate the accuracy,sensitivity,specificity and economy of HLA-B*5801 gene polymorphisms detection in predicting allopurinol-related severe drug eruption before receiving allopurinol treatment using rapid health technology assessment(rHTA),to provide clinicians and policymakers with an efficient and convenient evidence-based basis.Methods PubMed,Cochrane Library,Web of Science,Embase,WanFang Data,CNKI databases and the official website of health technology assessment(HTA)agency were electronically searched to collect HTA reports,systematic reviews/Meta-analyses and pharmacoeconomic literature on the HLA-B*5801 gene polymorphisms detection from inception to December 31,2023.Two reviewers independently screened studies,extracted data,assessed the included studies'quality,and analyzed and summarised the results.Results A total of 16 literature were included,of which 5 systematic reviews/Meta-analyses and 11 pharmacoeconomic studies.The results showed that the HLA-B*5801 gene mutation rate was significantly higher in patients presenting with severe drug eruption than in the allopurinol-tolerant group(P＜0.05).Two studies reported the sensitivity and specificity of the HLA-B*5801 gene polymorphisms assay for predicting severe drug eruption,the sensitivity of 0.78,0.93,and specificity of 0.96,0.89,respectively.The economic study showed that HLA-B*5801 gene polymorphisms detection before allopurinol treatment was cost-effective in Chinese Han,Korean,Thai populations,but not in British,American(Caucasian or Hispanic),Singaporean and Malaysian populations.Conclusion HLA-B*5801 gene polymorphisms detection before allopurinol treatment and guiding drug use according to the screening results in Chinese Han population can reduce the risk of severe drug eruption and treatment costs.

Objective:To investigate the effects of long non-coding RNA (lncRNA) CDKN2B-AS1 targeting miR-98-5p on proliferation and invasion of lung cancer A549 cells.Methods:A549 cells cultured in vitro were divided into control group, pcDNA group (transfected with pcDNA) , CDKN2B-AS1 group (transfected with pcDNA CDKN2B-AS1) and double transfection group (transfected with pcDNA CDKN2B-AS1 and pcDNA miR-98-5p) . The expression of lncRNA CDKN2B-AS1, miR-98-5p and the protein expression of PCNA, MMP-9 in A549 cells were detected. The activity, clone number, cloning efficiency, and the number of invasive cells of A549 cells were detected.Results:Compared with pcDNA group, the expression level of lncRNA CDKN2B-AS1 [ (2.14±0.14) vs (1.03±0.10) ], OD value in each time points, clone number [ (314.60±18.13) vs (220.08±12.46) ], cloning efficiency [ (85.81±3.06) % vs (60.03±2.85) %], invasive cell number [ (233.30±18.98) vs (140.84±12.30) ], expression levels of PCNA [ (0.78±0.08) vs (0.48±0.07) ] and MMP-9 [ (0.75±0.06) vs (0.38±0.06) ] proteins in A549 cells in CDKN2B-AS1 group were significantly increased ( P<0.05) ; the expression level of miR-98-5p [ (0.23±0.03) vs (0.99±0.09) ] was significantly decreased ( P<0.05) ; compared with CDKN2B-AS1 group, there was no significant difference in the expression level of lncRNA CDKN2B-AS1 in A549 cells in double transfection group ( P>0.05) , while the expression level of miR-98-5p in A549 cells was significantly increased ( P<0.05) . The OD value in each time points, clone number, cloning efficiency, invasive cell number, expression levels of PCNA and MMP-9 proteins were significantly decreased ( P<0.05) . Conclusion:LncRNA CDKN2B-AS1 can promote the proliferation and invasion of lung cancer A549 cells by targetingly inhibiting the expression of miR-98-5p.

Objective To investigate the value of endoscopic retrograde appendicitis therapy ( ERAT) in the diagnosis and treatment of atypical acute appendicitis. Methods All the 48 patients suspected of atypical acute appendicitis in Jiangsu Province Hospital from January 2015 to December 2016 were randomly divided into ERAT group and conservative treatment group according to the treatment method. The final appendectomy rate of the two groups was analyzed. Results Only 17 of the 24 patients in the ERAT group received endoscopic treatment because of complex conditions or personal wishes, and 16 cases were diagnosed as acute appendicitis. Surgical resection was performed in 5 cases because of recurrence of the disease after ERAT, and the appendectomy rate was 31. 2％ ( 5/16 ) . In the conservative treatment group, all 24 patients were treated with antibiotics. Twenty of them underwent surgical resection with appendectomy rate of 83. 3％ ( 20/24) , and 1 of them had appendiceal perforation. The appendectomy rate of the ERAT group was significantly lower than that of the conservative treatment group (χ2=11. 111, P<0. 05) . Conclusion ERAT has a high diagnostic and therapeutic value for atypical acute appendicitis.

Objective To investigate the correlation between neural tube defects (NTDs) and DACT1 gene, and provide the basic data for disease diagnosis and genetic counseling. Methods Blood samples were obtained from 163 NTDs patients and 480 unrelated healthy individuals. Mutation detection of DACT1 gene and DNA direct sequencing was carried out by PCR amplification. Bioinformatics analysis of these mutated loci was performed. Results Six mutations were found in NTDs patients, including 4 missense mutations (p.R45W, p.D142G, p.N356K and p.V702G). But these mutations were not found in 480 healthy individuals. Three mutated amino acid residues (p.45R, p.142D and p.356N) were highly conservative in evolution, and the mutated carriers were female patients, and suffered from anencephaly. Conclusion DACT1 gene mutation may be a risk factor of NTDs in Han population of northern China.

This study was aimed to investigate the effects of Bu-Yang Huan-Wu (BYHW) decoction to the learning and memory ability of APP/PS1 double transgenic mice through two behavior tests,in order to observe the Alzheimer's disease (AD) treatment effect of BYHW decoction.A total of 60 APP/PS1 double transgenic mice were randomly divided into five groups,which were the model group,the hydrochloride group,the high-,middle-,and low-dose BYHW decoction group,with ten rats in each group.The C57BL/6J mice were used as the control group.After 30 days of drug administration,all mice were subjected to behavior tests,including new object recognition experiment and step-through task.Western blot was used to detect changes of inflammatory factors,including IL-6 and TNF-α,in hippocampus of mice.The results showed that compared with the model group,the high-and middle-dose BYHW decoction can significantly decrease inflammatory factors of IL-6 and TNF-α expression in hippocampus of APP/PS1 mice.It can also obviously improve the learning and memory ability of APP/PS1 mice.It was concluded that BYHW decoction can significantly decrease the inflammatory factor expression in APP/PS 1 double transgenic AD model mice.It can obviously improve its learning and memory ability,which can be used in the treatment of AD.

Objective To investigate the methylation alteration of genomic DNA (gDNA) and its significance in pedigree neural tube defects (NTDs).Methods Twelve subjects from 3 NTDs pedigrees were enrolled in this study.NTDs patients were served as the case group,and their family members with normal phenotype were served as the control group.Peripheral vein blood was extracted,then gDNA was extracted.The extracted gDNA was treated with sodium bisulfite propagated as DNA segments in the way of whole genome amplification,which was put in I11umina Infinium human methylation 450k bead chip to perform hybridization,elution,extension,and imaging.The chip was scanned by iScan.Genome Studio was used to read the outcome.Illumina methylation analyzer software was used to analyze the methylation data.Results Gene differential methylation analysis showed that differential methylation sites only accounted for 0.2％ of the detected CpG sites and there were 617 differential hypermethylation sites (P ＜ 0.05),and 63 of them represented significant difference(P ＜ 1 × 10-4),including zinc finger E-box binding homebox 2,5,10-methylenetetrahydrofolate dehydrogenase 1 etc;there were 104 differential hypomethylation sites (P ＜ 0.05),and 65 of them represented significant difference (P ＜ 0.01),including Homeobox B7 and runt-related transcription factor 3 etc.Clustering analysis indicated that the tendency of DNA hypermethylation was consistent with NTDs patients,but the tendency of DNA hypomethylation was consistent with the controls.Conclusion In NTDs pedigree,the abnormal DNA methylation alterations may be the risk factor for NTDs occurrence.

Objective To study the radiation dose distribution in the X-ray room,and provide the strategy of radiation protection for the medical staff and the patient’s nursing who had to enter the room while the X-ray was exposing.Methods The thermolumi-nescent dosemeters(TLDs)was placed around the center of the X-ray tube with the same level of the bed.Then,exposure parame-ters,including the X-ray tube voltage value and the field of view,were changed for different groups while exposing.All of the TLDs were taken back to the lab for analysis.Results The differences between the two groups which had the same distance in different di-rections were statistically significant (P <0.01).With the same radiographic condition and direction,the radiation dose on the site of 10 cm from X-ray tube center was the maximum,while the site of 120 cm was the minimum.With the same radiographic condition and distance,the radiation dose on the anode side of the X-ray tube in the room was relative lower,while the site behind the X-ray tube was relative higher.With the same voltage value,distance and direction,the same sites that had the smaller FOV(34 cm×34 cm) received lower radiation dose than those with larger FOV(52.6 cm× 52.6 cm).Meanwhile,the sites with the voltage of 70 kV re-ceived the lower radiation dose than that with the voltage value of 120 kV.Conclusion In the X-ray room,the medical staff and the patient’s nursing can choose the area on the right side(anode side),keep far away from the X-ray tube center,avoid the rear of the X-ray tube and the cathodic direction of the X-ray tube to reduce the radiation dose.

Objective To explore the auricular application pressure added dietary intervention of perimeno-pausal syndrome (PS)the influence of women's sex hormone levels.Methods Research subjects were randomly divided into two groups.The observation group was given auricular application pressure to add dietary intervention, control group was given dietary intervention alone.Before and after six months of follow -up,sex hormone levels in the blood were monitored.Results After the intervention,the estrogen level of the observation group was (272.93 ± 15.71)pmol/L,progesterone was (3.14 ±0.47)nmol/L,which of the control group was (186.32 ±12.80)pmol/L, (2.86 ±0.34)nmol/L;After the intervention,the follicular thorn hormone content of the two groups were decreased, which of the observation group was (12.88 ±1.50)U /L,which of the control group was (21.35 ±4.70)U /L;The perimenopausal symptoms were reduced,Kuppermun score in the observation group were (9.36 ±1.41 )points, (10.43 ±1.63)points,the difference between the two groups were statistically significant (t =40.15,4.52,3.82, 4.65,all P <0.01)for the control group.Conclusion Auricular application press fit dietary intervention for patients with perimenopausal syndrome sex hormone regulation of metabolic disorders has obvious effect,can significantly improve the patients'symptoms of the menopausal transition,it is worthy of further research on intervention measures.

Objective To study on the application of biological variation total allowable error in quality management of serum lipid detection .Methods The σ score ,quality goal index (QGI) ,priority improvement measures and performance evaluation of lipid accuracy criteria were evaluated ,including cholesterol (CHOL) ,triglyceride (TG) ,high density lipoprotein (HDL‐C) ,low density lipoprotein (LDL‐C) ,which included in the standard of accuracy of the Ministry of Health in 2015 .The reason for unsatisfactory re‐sults of cholesterol (CHOL) test were analyzed .Results Based on the three levels of quality specifications derived in biological var‐iation ,when the total allowable error was located at an appropriate level ,the σ score of TG ,HDL‐C ,LDL‐C reached 6 ,it was not re‐quired for improvement .While the score of CHOL performance analysis was poor ,accuracy was required to give priority to impro‐ving .When the total allowable error reached the best level ,only the σ score of TG achieved “good” in the four items ,improvement of precision was needed .When the total allowable error was located at the lowest level ,the σ score of TG ,HDL‐C ,LDL‐C was grea‐ter than 6 ,the score of performance analysis reached the “excellent” .The σ score of CHOL (2 .9) had been closen to 3σ ,accuracy was required to be corrected .Conclusion The biological variation derived total allowable error is easy to meet the requirements of the quality management in serum lipid determination by current technologies and methods .The theory of 6σ quality can reflect the performance of detection indexes ,and improve the quality of analysis effectively .

ObjectiveTo determine whether simvastatin alleviates lower urinary tract symptoms (LUTS) in patients with metabolic syndrome (MS) coexisting with benign prostate hyperplasia (BPH) and explore an optimized scheme of treatment. MethodsFrom February to June in 2011,30 male subjects with MS and LUTS caused by BPH in out-patients and in-patients from geriatric department were recruited.The patients were randomly assigned to receive orally simvastatin (40 mg) and tamsulosin (0.2 mg) quaque noete as combination treatment group or only tamsulosin (0.2 mg,quaque nocte) as single treatment group for 8 weeks.International prostate symptoms score (IPSS),quality of life (QOL),maximum flow rate (MFR) and prostate volume (PV),liver enzymes,creatinine and routine urine test were monitored to evaluate the effectiveness and safety before and after the treatment.Results In the two groups,the significant differences were found in the levels of IPSS,QOL and MFR,while there was no difference in PV between pre-treatment and post-treatment.The scores of IPSS after treatment were (6.4 ± 4.4) in combination treatment group and(4.2±3.3)in single treatment group (P＜0.05),and there were significant difference in scores of IPSS before and after the treatment between two groups (P＜0.05),suggesting better improvement in combination treatment group than in single treatment group.In two groups,there were no adverse events,and no changes were found in liver and kidney function,muscle enzymes and routine urine test.Conclusions Combined tamsulosin and simvastatin treatment may alleviate LUTS caused by BPH and are well tolerated with no adverse events.