Objective:To optimize the forming technology of Zuojin concentrated pills. Methods: Single factor test was used to optimize the types of excipients and wetting agents with the shaping result as the index. Orthogonal test was used to optimize the forming technology taking the dissolution time,shaping rate and appearance quality as the evaluation indices,and the proportion of excipients, the rate of drugs to excipients and wetting agent amount as the investigation factors. Results: The best forming technology of Zuojin concentrated pills was as follows:MCC and PVP-K30 were used as the excipients with the ratio of 3:1,the ratio of drugs to excipients was 1:1,5% water was used as the wetting agent to obtain the damp mass,and then Zuojin concentrated pills were prepared in a pill machine. Conclusion:The optimized forming technology is stable with good reproducibility,and the pills are round and smooth with u-niform color,whose quality meets the requirements described in Chinese Pharmacopoeia(2015 edition,partⅣ,page 0108 for concen-trated pills). The study provides reference for the further study.

Cordyceps sinensis(C.sinensis)is a widely used and highly valuable traditional Chinese medicine.Several dipeptides have been detected in C.sinensis,but current scientific knowledge of its chemical makeup remains limited.In this study,an improved approach that integrates offline two-dimensional liquid chromatography(2D LC)separation,precursor ion list,library screening,and diagnostic ion filtering was established to systematically screen and characterize dipeptides in C.sinensis.Offline 2D LC integrating hydrophilic interaction LC and reverse phase separations was established to eliminate interference and identify the target dipeptides.A library containing the potential 400 dipeptides was created,and a precursor ion list with all theoretical precursor ions was adopted to trigger the MS/MS scan with high sensitivity.To identify dipeptides,the type and connection sequence of amino acids were determined according to the product ions.Ile and Leu residues were differentiated for the first time according to the characteristic ion at m/z 69.07.Ultimately,170 dipeptides were identified or tentatively characterized from C.sinensis,and most are reported for the first time in this species herein.In addition,the identified dipeptides were also applied for discrimination among the three Cordyceps species,and 11 markers were identified.The obtained results provide a deeper understanding of the chemical basis of C.sinensis.

Objective To evaluate the mediating effect of lifestyles on the association between family history and cardiovascular disease (CVD). Methods This study was based on the "Early Screening and Comprehensive Intervention of High-risk Populations of Cardiovascular Disease Project". The data were collected from 6 project sites in Hubei Province. Logistic regression analysis was used to investigate the impact of family history and lifestyle on CVD, and the relationship between family history and lifestyle. Mediation analysis was used to evaluate the mediating effect of lifestyle on the association between family history and CVD. Results A total of 5 871 subjects were included in the study from 2015 to 2016, of whom 500 (8.52%) developed CVD and 484 had family history of CVD. The risk of developing CVD was significantly increased in participants with family history of disease (OR = 1.458, P = 0.014) and in those with high level of physical activity (OR = 1.081, P = 0.026). The increase of leisure physical activity time showed a protective effect on developing CVD (OR = 0.977, P < 0.001). Participants with family history significantly increased leisure physical activity (OR = 2.085, P < 0.001), and were less likely to choose occupations with high levels of physical activity (OR = 0.524, P < 0.001). The results of mediation analysis showed that leisure physical activity and occupational physical activity mediated the relationship between family history and CVD, and the β value of the mediating effects were -0.004 (P = 0.010) and 0.002 (P = 0.045), respectively. The β value of the direct effect of family history on CVD was 0.033 (P < 0.05). Conclusion Leisure physical activity and occupational physical activity might mediate the relationship between family history and CVD. People with family history would reduce the risk of developing CVD by increasing leisure physical activity time and choosing occupations with low levels of physical activity.

Objective:To summarize the best evidence of intracranial hypertension nursing for adult patients with severe brain injury, and to provide reference for clinical nursing practice.Methods:According to the evidence-based methodology, a systematic search of Chinese and English literature on intracranial hypertension nursing of adult patients with severe brain injury was conducted in domestic and foreign databases such as CNKI, Wanfang, PubMed, Cochrane Library and Cinahl Plus and so on, as well as related guide websites and professional association websites from the establishment of database to August 2022. Two researchers independently evaluated literature quality and screened evidence, and then the project team summarized and concluded the evidence.Results:A total of 6 009 articles were obtained through preliminary search, and 33 articles were included after screening, including 13 guidelines, 1 systematic review, 17 expert consensus, 1 evidence summary, and 1 meta-analysis. In total, 33 pieces of best evidence were obtained from 8 dimensions, including intracranial pressure related threshold, assessment and monitoring, respiratory care, circulation care, analgesic and sedative care, temperature care, nutrition care and cerebrospinal fluid care.Conclusions:This study summarizes the evidence-based basis of intracranial hypertension nursing in adult patients with severe brain injury, which provides a basis for the standardized construction of clinical nursing strategies and empirical research.

Objective To analyze the equity of the allocation of oral medical resources and the accessibility of health service capabilities in Wuhan. Methods The equity of oral medical resources was calculated with Gini coefficient and Theil index, accessibility was assessed by two-step floating catchment area model, and the spatial autocorrelation was used to study the high-low clustering of accessibility. Results The Gini coefficient of oral medical resources based on population level was around 0.3, and the Gini coefficient of oral medical resources based on geographic area was greater than 0.6. Theil index calculation results were similar. In terms of overall accessibility, the area with poor accessibility was 2,428 square kilometers, reaching 28.38% of the total area, while the area with better accessibility accounted for 14.18%. Conclusion The allocation of oral medical care resources based on population distribution was fairer and better than that based on geographic area. Moreover, the geographical accessibility varies greatly between regions, showing the characteristics of high-high cluster and low-low cluster.

Objective : To analyze the difference of urinary iodine level in Hashimoto thyroiditis ( HT) patients， and to explore the possible relationship between urinary iodine level and HT under different iodine nutritional sta- tus，so as to provide some references for reasonable iodine intake in HT patients． Methods : A total of 101 hospi- talized HT patients were selected as HT group and divided into 3 groups according to thyroid function : HT group with hyperthyroidism (41 cases) ．There were 25 cases in HT group with normal thyroid function．There were 35 cases in HT combined with hypothyroidism group．In addition，30 healthy subjects were selected as control group. Serum levels of thyroid stimulating hormone(TSH) ，triiodothyronine(T3 ) ，thyroxine (T4 ) ，thyroid peroxidase an- tibody (TPOAb) and thyroglobulin antibody (ATG) were detected by chemiluminescence assay．The size and mor- phological structure of thyroid organs were examined by ultrasonography．Urinary iodine was determined by catalytic spectrophotometry with arsenic and cerium．The nutritional status of iodine was classified into iodine deficiency ( < 100 μg/ L) ，iodine adequacy( 100 －199 μg/ L) ，iodine adequacy (200 －299 μg/ L) and iodine excess ( ≥ 300 μg/ L) ．Non-parametric test was used to compare urinary iodine level between HT group and control group，one- way ANOVA and t test were used to compare urinary iodine level between HT group and control group ，and Spearman correlation analysis was used to compare the correlation between urinary iodine level and T3 ，T4 ，TSH， ATG and TPOAb under different iodine nutrition status. Results : Compared with control group，ATG and TPOAb levels in HT group increased (P＜0. 001) ，and urinary iodine levels increased (P＜0. 05) ，with statistical signifi- cance．Compared with the control group in different thyroid function states，only the HT group with hypothyroidism increased the urinary iodine level (P＜0. 01) ，and the difference was statistically significant．Spearman correlation analysis showed that urine iodine level was positively correlated with ATG and TPOAb levels in iodine excess condi- tion (P＜0. 05) ，and urine iodine level was positively correlated with TSH level in iodine sufficient condition and iodine excess condition in HT patients (P＜0. 05) ． Conclusion The urinary iodine level of HT patients was high- er than that of normal people．When the urinary iodine level of residents is ≥ 300 μg/ L，iodine intake is prone to HT．When the urinary iodine level of HT patients is ≥ 200 μg/ L，iodine consumption is prone to hypothyroidism， and iodine intake should be limited.

The emission of hydrogen sulfide in the waste gas from slaughter plant, fishmeal feed processing and some other food industrial processing could cause serious air pollution to the surrounding environment. The purpose of this study was to screen heterotrophic bacterium strains for the removal of hydrogen sulfide odor. One heterotrophic bacterial mutant ZJNB-B3 was derived from the sulfide degrader Bacillus cereus XJ-2 and its sulfide removal efficiency was 97%. Based on the morphology studies, biochemical tests and 16S rRNA gene analysis, the strain was identified as Bacillus cereus ZJNB-B3. The NCBI GenBank accession number is MF679650. Batch tests showed that the strain tolerated up to 300 mg/L of toxic S²⁻ concentration. Response surface methodology was applied to optimize the conditions of degradation of sulfide. The optimal parameters were as follows: initial sulfide concentration 211.8 mg/L, initial pH 6.72, inoculum volume 5.04%, and incubation temperature 30 ℃. The accumulated sulfate concentration was 63.8 mg/L and the sulfide removal efficiency was 97.3% after 48 h incubation. No sulfuric acid was generated during sulfide oxidation by the strain. Sulfide could be removed effectively by this strain under mild pH conditions. The results suggested that the strain may have great industrial application potential. This study provides the fundamentals for the removal of hydrogen sulfide gas.