A simple, rapid and sensitive method for reversed phase HPLC determination of N-acetyl-L-tryptophan (N-ATRP) and its metabolite L-tryptophan (TRP) in rabbit serum was developed based on their intrinsic fluorescence using excitation and emission wavelengths of 280 and 360 nm, respectively. The separation of two amino acids was achieved on an ODS C18 column with a mobile phase of 0. 1 mol ?L-1 NaAc-25% methanol (pH 5. 7) at a flow rate of 0. 5 ml ?min-1. The calibration curves for N-A-TRP and TRP provided the linear range about1.0 - 17. 0mg ?L-1(r=0. 9962 and 0.9978, respectively). The recoveries greater than 98% and good reproducibility were achieved with rabbit serum. The concentration-time curve of N-ATRP after iv administration was determined in rabbits. Results showed that N-ATRP was quickly converted to TRP with a half-life of 8. 5 min. The decrese of N-ATRP accorded well with the rise of TRP.

Linaoxin, a herhal preparatlon composed of Salvia miiltiorrhiza, Ligusticum wallichii,Pueraria lobata,and Polygonum multiflorum etc., at doses of O. 25 and o. 5g/kg (ig)significantly improved the neural symptoms of experimental cerehral infarction and reduced the size of infarcted area in rats. At the same doses it also significantly prolonged the hreathing time of mice after decapitation and showed effects on brain energyrnetabolism including the increase of brain ATP and phosphocreatine (Pcr)leveIs and decrease of brain lacticacid (LA)level. Linaoxin suspension at concentrations of l:

A large series of lens were collected from normal and senile cataractous human eyes, and were investigated according to the theories of oxyradical and lipid peroxide (LPO). The findings showed that the activities of superoxide dismutase (SOD), glutathione peroxidase (GSH-Px) and catalase in the senile cataractous lens were very significantly lower than those in the normal ones, while the content of malondialdehyde (MDA) in the lens of senile cataractous eyes was very significantly higher than that of normal eyes. The results suggest that the oxyradical and LPO might be one of the direct causes leading to senile cataract formation.

Objective:To observe the clinical efficacy and safety of Bianyan oral liquids in the treatment of acute pharyngitis. Methods:The clinical data of 200 patients with acute pharyngitis in the outpatient department of traditional Chinese medicine in our hospital from September 2010 to June 2012 were analyzed. They were divided into the control group with 100 cases and the observation group with another 100 cases. The control group was given Jinlianhua granules, while the observation group was received Bianyan oral liquids. After 5 days, the symptom score, effective rate, changes in accompanied symptoms and safety index were observed and com-pared. Results:The symptom score and effective rate of the observation group were better than those of the control group (P<0. 05), and the improvement in defecation was better than that of the control group (P<0. 05) as well. There were two cases in the observation group suffered nausea and stomachache, and one case in the control group suffered diarrhea while no untoward effect emerged. Conclu-sion:Bianyan oral liquids with the effects of heat-clearing and detoxicating, nourishing yin and fluid and treatment both manifestation and root cause show significant effect in the treatment of acute pharyngitis.

Objective To investigate the pathotypes,epidemiological characteristics and antimicrobial resistance of diarrheagenic Escherichia coli (DEC) in children with acute bacterial diarrhea in Shanghai.Methods A total of 2 071 outpatient children with probable acute bacterial diarrhea referred to the enteric clinic of Children's Hospital of Fudan University during June 2012 to June 2014 were enrolled in our study.The stool samples were processed for routine microbiologic and biochemistry tests to identify enteric bacteria,including enteropathogenic Escherichia coli (EPEC),enterotoxigenic Escherichia coli (ETEC),enteroinvasive Escherichia coli (EIEC) and enterohemorrhagic Escherichia coli (EHEC).Kirby-Bauer method was used to identify the antibiotic sensitivity.Difference of means between groups was compared by chi-square test.Results Of 2 071 enrolled children,DEC were identified in 145 (7.0 ％)cases.148 strains were isolated with three of mix infection strains.All DEC isolates in this study included 106 (71.6％) EPEC,24 (16.2％) ETEC,16(10.8％) EIEC and 2(1.4％) EHEC.The median ages of diarrheal children with DEC infections were 14 months (range:3 months to 13 years) and 62.8％ of them were ＜2 years.Among 125 DEC isolates tested for antimicrobial susceptibility,the rates of resistance to ampicillin,trimethoprim-sulfamethoxazole,cefotaxime,cefepime,gentamicin,ceftazidime,amoxicillinclavulanate,ciprofloxacin,and ofloxacin in a descending order were 55.2％,35.2％,28.0％,27.2％,23.2％,8.8％,5.6％,4.0％ and 4.0％,respectively.Resistance rates of EIEC to cefotaxime,cefepime and ceftazidime were 50.0％,43.8％ and 25.0％,respectively,which were higher than those of EPEC,ETEC and EHEC.Conclusion DEC is the important enteric bacteria that causes bacterial diarrhea in children in this study.

ObjectiveTo establish pediatric serum CysC reference intervals based on the children's hospital laboratory data in Zhejiang Province and analyse the effects of CysClevels on age and gender. MethodsCysC was one of tests of a routine biochemical screening panel employed for most outpatients and inpatients in the children's hospital, and 8 127 subjects (4 264 boys and 3 863 girls) were selected from 13 567 subjects from laboratory information system according to the exclusion criterion with seriously systemic diseases, cardiovascular diseases, kidney diseases, elevated values of creatinine, urea or ALT for which 1.5-fold upper limit, serum samples with hemolysis, icterus or lipid turbidity, same patients with non-first-time CysC results and living addresses which were not in Zhejiang. The serum CysC was determined by transmission turbidimetry on Roche DPP modular automatic biochemical analyzer. SPSS 17.0 software and EXCEL 2003 were employed for statistical analysis in this study. Results The serum CysC concentration was a Gaussian distribution after log transformation. The mean Log-transformated CysC lg (CysC) concentration of boys in five age groups ( ＜ 1 month, 1 to 3 months, 4 to 11 months, 1 to 2 years and 2 to 16 years) were 0. 224,0. 170,0. 112,0. 061, -0. 011 (mg/L,lg) respectively, and the mean Log-transformated CysC lg(CysC) concentration of girls in five age groups were 0. 222, 0. 164, 0. 089, 0. 057,-0. 010 ( mmg/L, lg) respectively, and no statistically significant differences between Ig( CysC ) and gender in five age groups were found ( t values were 0. 174, 0. 362, 0. 445,- 1. 464 and - 0. 093, respectively,and corresponding P values all were greater than 0. 05 ). The mean lg ( CysC ) concentrations in five age groups were 0. 222,0. 166,0. 100,0. 059, - 0. 010 ( mmg/L, lg), and significant differences between Lg ( CysC ) and ages by Analysis of Variance were observed ( F = 309. 785 and P = 0 in between-groups totally,P = 0 in any two groups). Serum CysC levels were highest in the age of ＜ 1 month, then declined to the age of 2 years and kept stable in the age of 2 to 16 years. The serum CysC reference intervals for children were as follows:0. 95 -2. 92 mg/L in the age of ＜ 1 month, 0. 81 -2.67 mg/L in the age of 1 to 3 months, 0. 65 -2.45 mg/L in the age of 4 tol2 months, 0. 56 -2. 35 mg/L in the age of 1 year and 0. 45 -2. 13 mg/L in the age of 2 to 16 years. ConclusionsThere is no significant effect on pediatric CysC levels with gender but close correlated with age below 2 years old. It is necessary to establish appropriate age-related reference intervals of serum CysC for efficiently evaluating renal function in local children.

Aim To investigate the effects of Y-IP5 on morphine-induced behavioral sensitization and CPP in mice.Methods Locomotor activity was detected after Y-IP5 administration or co-administration of Y-IP5 with morphine in mice.Mice were treated with morphine to induce behavioral sensitization. Then the effects of Y-IP5 on the development, transfer and expression of morphine-induced behavioral sensitization were investigated. Mice were treated with morphine to induce CPP. Then the effect of Y-IP5 on the acquisition of morphine-induced CPP was studied.Results Y-IP5 itself didn′t influence locomotor activity of mice.Co-administration of Y-IP5 with morphine inhibited morphine-induced hyperactivity (P<0.05) and the development of morphine-induced behavioral sensitization in mice (P<0.05), however, did not influence the transfer and expression of morphine-induced behavioral sensitization.Co-administration of Y-IP5 with morphine also inhibited the acquisition of morphine-induced CPP (P<0.05).Conclusion Y-IP5 may inhibit the psychological dependence induced by morphine.

Objective:To find benefit of adaptive challenges in age-related macular degeneration (AMD) patients of long-term treatment in the challenge of vision decline, and provide new ideas for improving the quality of life of patients.Methods:It was a phenomenological study from qualitative research, selected by purpose sampling method and semi-structured interview which involved 20 AMD patients who received intravitreal treatment of drug in the Ophthalmology Department of Affiliated Hospital of Nantong University from January to March 2023.Two interviewees comprehensively read and analyzed the transcript of the interview and its meaning, subsequently Colaizzi seven-step analysis method was used to classify and encode the transcribed data.Results:Among 20 patients, there were 9 males and 11 females, aged 56-81 years old. Patients with AMD experience a sense of benefit in their long-term management of the condition, adapting to the challenges posed by declining strength, which could be summarized into four main themes: moderate sense of decision control, satisfactory social support, active self-management of the disease, and an improvement in quality of life.Conclusions:Patients with AMD experience a sense of disease-related benefit during the long-term management of visual acuity challenges. Healthcare professionals should guide patients to seek this benefit from adverse events, identify the adaptive challenges patients face, and leverage their adaptive leadership skills. Furthermore, offering multi-channel low vision rehabilitation services can assist patients in enhancing their adaptive capabilities, ultimately contributing to further improving their quality of life.