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Objective:To assess the clinical value of metagenomic next-generation sequencing (mNGS) of cerebrospinal fluid in pathogenic diagnosis of neurological infectious disease.Methods:Patients who were clinically diagnosed with infectious encephalitis and meningitis and treated in Department of Neurology, Affiliated Hospital of Chifeng University from March 2018 to September 2019 were retrospectively analyzed, including the clinical characteristics and data of mNGS and traditional laboratory test of pathogens.Results:Totally 104 patients with infectious encephalitis and meningitis were eligible for enrollment, and mNGS detected 22 bacterial species(22/104,21.15%), 24 viral species (24/104,23.08%), one fungal species (1/104,0.96%), one parasitic species (1/104,0.96%) and one mycoplasma species (1/104,0.96%).The three leading positive detections were varicella-zoster virus ( n=19), streptococcus ( n=7) and Mycobacterium tuberculosis ( n=4). Combined with traditional pathogen detection methods, clinical manifestations, final diagnosis and treatment results, the number of cases diagnosed by mNGS was 49 cases. The positive rate of the mNGS was 47.12% (49/104).False positives occurred in 21 (20.19%) patients. False negatives occurred in 34 (32.69%) patients. Conclusions:mNGS is more sensitive in evaluating the pathogens causing the infectious encephalitis and meningitis. It has advantages in accurate diagnosis of infectious encephalitis and meningitis.
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Objective To explore the effects of nifedipine combined with Magnesium Sulfate on the serum of patients with hypertension of pregnancy blood creatinine, uric acid and serum cystatin C level.Methods68 cases of patients with pregnancy induced hypertension from December 2013 to December 2015 in our hospital were selected, according to the different treatment methods were divided into control group and experimental group, 34 cases in each group, the two groups were treated with conventional therapy and symptomatic treatment, the control group was given 25% Magnesium Sulfate Injection 20mL+5%, Glucose Injection 20mL, 8~10min intravenous injection, after 25% Magnesium Sulfate Injection 60mL+5% Glucose Injection 500mL intravenous drip, 1~2g/L,1 times a day, Phentolamine Mesilate Injection 20mg+5%, Glucose Injection 250mL intravenous drip, 30min drop, 1 times a day;The experimental group was given the Extended Release Nifedipine Tablets 30mg sublingual in the control group on the basis of 3 times a day.Two group of gestational age<38 weeks treatment time was seven days,, the end of pregnancy over 38 weeks of treatment time was three days.After treatment the clinical efficacy, serum creatinine, uric acid, cystatin C, alpha-fetoprotein and adverse pregnancy outcome were compared between the two groups.ResultsAfter treatment,compared with the control group, the total effective rate of treatment group was higher (P<0.05), 2 groups of the blood serum uric acid, creatinine, Cystatin C and AFP levels were decreased (P<0.05), compared with the control group, the experimental group of serum uric acid, serum creatinine, Cystatin C and alpha fetoprotein level was lower (P<0.05).The experimental group, the complication rate was 5.88%, incidence rate of complications in the control group 14.71%, 2 groups of adverse pregnancy outcome rate comparison, the difference was not statistically significant.ConclusionNifedipine combined with Magnesium Sulfate significantly on clinical efficacy in patients with pregnancy induced hypertension, decrease the level of serum creatinine, uric acid and serum cystatin C levels, improve the quality of pregnancy, drug safety is high.
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Objective:To detection antibody against heat-stable enterotoxin by fusion protein.Methods:Mutant heat-stable enterotoxin precursor gene was ligated in vector pGEX-4T-2 to inductively express as a fusion protein GST/proST_m with glutathione S-transferase(GST).To investigate the antigenic action,serum and fecal antibodies against heat-stable enterotoxin was detected with this fusion protein.Results:The fusion protein was a about 32 kD protein.All the samples contain the antibody against ST.Conclusion:Such strategy was a promising method to detect antibody against heat-stable enterotoxin.