Objective To study the protective effect of pure carbachol or combined with dietary fiber on intestinal mucosal barrier of rats after diffuse brain injury (DBI).Methods An adult male Wistar rat model of DBI was reproduced by gravitational shock method. The rats injured and survived after resuscitation were divided into three groups: model group (n = 40), carbachol group (n = 40) and carbachol combined with dietary fiber group (combined group,n = 32). In addition, a control group was established by simply an incision performed on the scalp, and the rats could drink freely (n = 5). In the experimental groups, 2 hours after resuscitation the rats began to receive gavage, 6 hours once, the liquid amount 15 mL/kg should be assured in every 6 hours, and if insufficient, normal saline was supplemented. In model group, normal saline 90 mL/kg was given, in carbachol group, carbachol 300μg/kg was administered and in combined group, carbachol 300μg/kg combined with dietary fiber 60 mL/kg was supplied. At 3 (combined group being excluded), 6, 12, 24 and 48 hours after resuscitation, the rats were anesthetized to collect samples and detect the plasma levels of D-lactate and activity of diamine oxidase (DAO) respectively, and the changes of villus height of small intestine were examined by a light microscope.Results The plasma D-lactate levels and the activities of DAO at any time point in the experimental groups were significant higher than those in control group (allP < 0.01). Along with the prolongation of time, the levels of plasma D-lactate and DAO activities in carbachol and carbachol plus diatary fiber groups were gradually lower than those of the model group, and at 48 hours after injury they reached their valley values [D-lactate (ng/L): 6.32±0.79, 7.46±1.67 vs. 17.65±1.53, DAO activity (kU/L): 0.76±0.01, 0.86±0.01 vs. 2.23±0.15]. Under light microscopy, compared with control group, the villus height of small intestinal mucosa at any time point in any experimental group was gradually lowered, and reached the valley values at 12 hours, then gradually increased , and peaked at 48 hours, the villus height in carbachol group and combined group was higher than that in model group (μm: 265.36±10.20, 261.54±10.38 vs. 247.51±9.39, bothP < 0.05).Conclusion When only carbachol is administered into the rat intestine early after diffuse brain injury in rats, beginning from 6 hours after injury, the protective effect of intestinal mucosal barrier is shown, representing decrease of plasma D-lactate level and DAO activity, amelioration of intestinal mucosal damage and protection of intestinal mucosal barrier; under the same above situation, the carbachol combined with dietary fiber was applied, showing the similar above carbachol protective effects.

Objective To study the feasibility of high performance liquid chromatography-evaporative light scattering detector ( HPLC-ELSD) in quantitative analysis of multi-components ( QAMS) by single marker. Methods Four saponins in Astragali Radix were simultaneously determined by HPLC-ELSD using external standard method, and malonylastragaloside I served as internal standard. The relative correction factors between internal standard and astragaloside Ⅰ, astragaloside Ⅱ and astragaloside Ⅳ were calculated, and the stability was investigated. Results Astragaloside Ⅳ in Astragali Radix was little, while malonylastragalosideⅠand AstragalosideⅠwere abundant.The relative correction factors lacked stability, so ELSD could not be used in QAMS. Conclusion HPLC-ELSD can precisely determine contents of four saponins in Astragali Radix. The detector needs to be further studied when the components have poor ultraviolet absorption such as saponins by QAMS.

Objective To observe the protection of carbachol on intestinal barrier function in patients with trauma. Methods A prospective randomized controlled trial was conducted. Seventy patients after trauma with a definite diagnosis of multiple organ dysfunction syndrome(MODS)from Department of Critical Care Medicine in Hebei United University Affiliated Hospital were included. According to random number table,the patients were divided into a carbachol treatment group(37 cases)and a mosapride citrate treatment group(33 cases),and all the patients in the two groups were treated by antibacterial drugs,supportive agents for organ function,surgery, etc symptomatic treatment. Based on the conventional treatment,in the carbachol treatment group,carbachol was administered through a stomach tube at the dose of 0.2 mg/kg,twice a day,and the dose was doubled if no exhaust or defecation persisted for 3 days after treatment,while in the mosapride group,mosapride citrate was given at the dose of 5 mg once and thrice a day,the therapeutic course of both groups being 7 days. On the 1st,3rd,5th, 7th day after admission,peripheral venous fasting blood in early morning was collected,the activity of diamine oxidase(DAO),expression rates of CD11b+and CD18+in polymorphonuclear neutrophil(PMN),contents of tumour necrosis factor-α(TNF-α)and interleukin-10(IL-10) were detected,and the clinical curative effects were observed. Results Compared to the mosapride citrate treatment group,the total effective rate was significantly higher in the carbachol treatment group on the 7th day after treatment〔70.3%(26/37)vs. 45.5%(15/33),P<0.05〕. The activity of DAO,expression rates of CD11b+and CD18+in PMN,contents of TNF-αand IL-10 in the carbachol treatment group were decreased with the extension of time,and reached valley values on the 7th day,the differences were statistically significant in the comparisons with those in mosapride citrate treatment group at the same time point〔DAO(mg/L):3.21±0.52 vs. 3.93±0.51,CD11b+:(14.89±2.16)% vs.(28.92±1.59)%,CD18+:(53.67±2.44)% vs. (72.46±4.08)%, TNF-α(ng/L):111.44±16.42 vs. 129.73±18.74, IL-10(ng/L):67.71±38.83 vs. 121.45±40.23,all P<0.05〕. At the various time points,the above indexes had no obvious changes in mosapride citrate treatment group. Conclusion Carbachol can ameliorate the ischemic/reperfusion(I/R)injury in patients with intestinal barrier dysfunction after trauma,decrease the release of inflammatory cytokines in vivo,and promote peristalsis of intestinal tract,therefore carbachol has clinical value of protecting intestinal barrier function.

Background The mental health problems of employees in administrative organs and public institutions are highly valued.However,there is a lack of understanding regarding the mental health status of employees in provincial and municipal administrative organs and public institutions in Qinghai region.Objective To analyze the anxiety and depression of employees in provincial and municipal administrative organs and public institutions in Qinghai region,so as to provide references for promoting their mental health and intervening in psychological problems.Methods From October 23 to 28,2022,a total of 3 096 employees in provincial and municipal administrative organs and public institutions in Qinghai region were enrolled using stratified cluster sampling technique,and were assessed using Self-rating Anxiety Scale(SAS)and Self-rating Depression Scale(SDS).Results A total of 1797(58.04％)employees in municipal and above administrative organs and public institutions in Qinghai region completed a valid questionnaire survey.Depressive symptoms were noted in 579(32.22％).SDS scores yielded statistical difference among the selected employees of different ethnicities,types of job positions and educational levels(F=9.074,101.488,4.477,P<0.01),and the severity of depressive symptoms also demonstrated statistical difference among the selected employees with different ethnicities,educational levels and types of job positions(H=49.196,17.028,160.848,P<0.01).Anxiety symptoms were detected in 711(39.57％)employees.SAS scores exhibited statistical difference among the employees with different genders,ages,ethnicities,educational levels,marital status and types of job positions(t=-4.571,F=6.648,3.950,5.243,12.008,22.253,P<0.01).Statistical differences were also illustrated in the severity of anxiety symptoms among the selected employees with different ages,genders,ethnicities,educational levels,marital status and types of job positions(H=24.361,-3.788,28.365,24.268,25.976,56.204,P<0.01).Conclusion About one-third of employees in municipal and above administrative organs and public institutions in Qinghai region may have symptoms of depression and anxiety.The depression symptoms are more severe among Tibetan people,those with low education levels and ordinary civil servants.The anxiety symptoms are more severe among employees aged 30 and below,those with low education levels,unmarried and those in technical positions.

Objective:To explore the related risk factors of stress hyperglycemia in patients with acute cerebral infarction and the effect of stress hyperglycemia on short-term cognitive function and prognosis of acute cerebral infarction.Methods:A prospective study was used to select non-diabetic acute cerebral infarction patients who were hospitalized in Department of Neurology, North China University of Science and Technology Affiliated Hospital from June 2016 to November 2019 for observation.According to the increase in blood sugar, the study subjects were divided into stress hyperglycemia group (107 cases) and normal blood sugar group (202 cases), record two groups of general information.After single-factor and multi-factor analysis, independent risk factors for stress hyperglycemia were screened.The degree of neurologic impairment and cognitive function were evaluated on admission and 30 days after onset of the disease in the two groups.The incidence of complications within 30 days after onset of the disease was recorded, and the outcome evaluation of 30 days after onset was completed.The incidence of adverse prognosis was compared between the two groups.Results:The incidence of stress hyperglycemia was 34.6%.By univariate analysis, the proportion of hypertension history, smoking history and multifocal infarction in stress hyperglycemia group was higher than that in normal blood glucose group (all P<0.05), and age, body mass index (BMI), national institute of health stroke scale(NIHSS) score, admission systolic blood pressure, total cholesterol, low density lipoprotein cholesterol and hypersensitive C-reactive protein (hs-CRP) in the blood glucose group were higher than those in the normal blood glucose group (all P<0.05). Multivariate logistic regression analysis showed that age, admission systolic blood pressure, BMI, NIHSS score and multifocal infarction were independent risk factors of stress hyperglycemia in patients with non-diabetic acute cerebral infarction (all P<0.05); the incidence of cognitive impairment in stress hyperglycemia group was higher than that in normal blood glucose group (21.8% vs.12.7%; χ 2=4.155, P=0.042), and the 30-day MOCA score was lower than that of the normal blood glucose group.According to multivariate Logistic regression analysis, stress hyperglycemia was independently associated with cognitive impairment in the 30 days after acute cerebral infarction( OR=1.788, 95% CI: 1.127-2.836, P=0.014). The results showed that the incidence of poor prognosis in stress hyperglycemia group was significantly higher than that in normal blood glucose group ( P<0.05); multivariate logistic regression analysis showed that stress hyperglycemia was independent of other factors related to disease outcome, and closely related to poor prognosis ( OR=1.824, 95% CI1.410-2.664, P=0.003). In addition, disease progression ( OR=2.208, 95% CI1.542-3.104, P<0.001) and severity of admission ( OR=2.340, 95% CI1.670-3.279, P<0.001) were also independent risk factors for poor prognosis. Conclusion:The occurrence of stress hyperglycemia after acute cerebral infarction in non-diabetic patients is the result of multiple factors.It is an independent influencing factor of poor prognosis, and can be used as one of the important reference indicators to predict the disease condition.