ObjectiveTo observe the effects of acupuncture at channel points in treating functional dyspepsia （FD） patients of spleen-stomach weakness syndrome and to explore its potential mechanism. MethodsSixty FD patients of spleen-stomach weakness syndrome were randomly divided into an acupuncture group and a domperidone group， with 30 patients in each group. Acupuncture group was given acupuncture at Zusanli （ST36）， Neiguan （PC6）， Gongsun （SP4）， and Yinlingquan （SP9） using even reinforcing-reducing method. Unilateral points were selected alternately on the left and right sides， once daily， for 30 minutes each session， 5 sessions per course， and a 2-day interval between courses. Domperidone group was given domperidone tablets orally， one tablet each time， three times daily， 15~30 minutes before meals. The total course of treatment was 4 weeks in both groups. Pairwise comparisons of the symptom scores including postprandial fullness and discomfort， early satiety， epigastric pain， and epigastric burning discomfort， and the levels of serum 5-hydroxytryptamine （5-HT）， vasoactive intestinal peptide （VIP）， and glucagon-like peptide-1 （GLP-1） were conducted at pre-treatment， 4， and 8 weeks post-treatment. The clinical efficacy was analyzed and evaluated after treatment. ResultsCompared with baseline， the symptom scores of postprandial fullness and discomfort， early satiety， epigastric pain and epigastric burning discomfort and the levels of serum 5-HT， VIP and GLP-1 of both groups were significantly decreased after 4 weeks and 8 weeks treatment （P＜0.05）. At 4 weeks post-treatment， all symptom scores and the levels of 5-HT and GLP-1 of the acupuncture group were significantly lower than those of the domperidone group （P＜0.05）. At 8 weeks post-treatment， the symptom scores of postprandial fullness and discomfort， early satiety and epigastric pain and the levels of 5-HT and VIP of the acupuncture group were significantly lower than those of the domperidone group （P＜0.05）. The total effective rate of the acupuncture group （96.67%， 29/30） was higher than that of the domperidone group （86.67%， 26/30， P＞0.05）. ConclusionAcupuncture at channel points shows good clinical efficacy in the treatment of spleen-stomach weakness syndrome FD， and its mechanism may be related to the decreased levels of 5-HT， VIP， and GLP-1 in serum.

Abtract Objective:To establish a graphite furnace atomic absorption spectroscopy,and to determine the content of aluminum in the hemofiltration base solution.Methods:The standard addition method of atomic absorption of graphite furnace was used to add matrix modifier to determine the content of aluminum.Results:Aluminum has a good linear relationship in the range of 0-20 μg·L-1,r=0.998;The detection limit concentration was 0.91 μg·L-1.The average recovery rate was 96.5％.The results of the three batches were 3.299,1.232 and 2.431 μg·L-1,respectively.Conclution:This method can effectively measure the content of aluminum in hemofiltration base solution products,and control the raw materials,production and packaging of products that may introduce pollution pathways.It is recommended that enterprises pay attention to the detection of aluminum content in the on hemofil-tration base solution to minimize the risk of contamination and ensure the quality of products.

Objective:To develop an HPLC method with gradient elution for the simultaneous determination of 4 bacteriostatic agents in triamcinolone acetonide econazole cream from the different manufacturers.Methods:The test was performed on a Waters Symmetry C18 column(250 mm ×4.6 mm,5 μm)under gradient elution of metha-nol(A)and methanol-0.02 mol·L-1 sodium dihydrogen phosphate solution(B).The flow rate of 1.0 mL·min-1 and the column temperature was 35 ℃.The detection wavelengths were 228 nm and 254 nm.Results:The good separation of the bacteriostatic agents peaks were achieved.The linear ranges of benzoic acid,methyl hydroxybenzoate,ethylparaben and propylparaben fell into 0.010 348-0.155 22 mg·mL-1,0.009 876-0.148145 mg·mL-1,0.010 106-0.151 588 mg·mL-1 and 0.010 259-0.153 882 mg·mL-1 respectively.The av-erage recoveries were 99.68％(RSD=2.35％),100.21％(RSD=1.78％),100.47％(RSD=1.59％)and 100.06％(RSD=1.65％)respectively.The LODs were 3 × 10-5 mg·mL-1,1.67 × 10-5 mg·mL-1,1.67 × 10-5 mg·mL-1 and 1.67 × 10-5 mg·mL-1 respectively.Conclusion:The established method is sensitive and accurate,and has the good separation.It provides the reliable basis for the quality control of triamcinolone ace-tonide econazole cream.

Frailty denotes a nonspecific clinical condition characterized by a decrease of physiological reservation in multiple systems, which makes individuals extremely vulnerable to stressors. Frailty increases the incidence of adverse outcomes and death of patients. However, frailty is reversible and preventable. Therefore, this article reviews theoretical models, assessment tools and influencing factors of frailty in elderly patients with hematologic maligilancy, so as to provide references for medical staff to carry out frailty management and related research in elderly patients with hematologic maligilancy.

Objective:To investigate the synergistic effect of physical intervention and chemotherapeutic drug therapy on tumor growth by blocking tumor microvessels and injecting chemotherapy drug Endostar (ecombinant human vascular endostatin injection) to inhibit tumor neovascularization by low intensity ultrasound induced microbubble cavitation combined with hemocoagulase.Methods:Seventy-five male NU/NU mice bearing human-derived lung adenocarcinoma, weighing 25-30 g, were randomly divided into microbubble-enhanced ultrasonic cavitation+ Endostar group (MEUC+ Endostar), microbubble-enhanced ultrasonic cavitation+ hemocoagulase+ Endostar group (MEUC+ HC+ Endostar), microbubble-enhanced ultrasonic cavitation (MEUC), Endostar group (Endostar) and sham group. Fifteen mice in each group were given the corresponding treatment intervention for 4 consecutive days followed by 4 days of aseptic feeding. Two-dimensional ultrasound and contrast-enhanced ultrasound (CEUS) were performed before intervention, immediately after intervention and 4 days after intervention, respectively. Tumor tissues were obtained for vascular endothelial growth factor immunofluorescence staining, and microvessel density (MVD) was observed.Results:There was no difference in tumor volume between the groups before the intervention ( P>0.05). Immediately after the intervention, filling defects were observed in MEUC+ Endostar group, MEUC+ HC+ Endostar group and MEUC group, while filling was good in Endostar group and sham group; 4 days after the intervention, filling defects were observed in MEUC+ Endostar group and MEUC+ HC+ Endostar group. The filling defect was still present in Endostar group, while partial recovery of perfusion was performed in MEUC group, and PI and AUC were still significantly lower in MEUC+ HC+ Endostar group than in the other groups ( P<0.05). When tumor tissues were obtained 4 days after the intervention, the MVD in MEUC+ HC+ Endostar group was significantly lower than that in the remaining groups, and the difference of MVD in tumor tissue was statistically significant ( P<0.05). Conclusions:Low intensity ultrasound induced microbubble cavitation combined with hemocoagulase and Endostar can produce a synergistic effect in blocking tumor microvessels and inhibiting tumor angiogenesis, which can more effectively inhibit tumor growth.

Objective:To investigate the effects of mixed probiotics on food allergy and the underlying mechanism.Methods:BALB/c mice on the 15 th day of pregnancy were randomly (random number table method) classified into the control group, food allergy model group and mixed probiotics group.Mice in the food allergy model and mixed pro-biotics group were subjected to ovalbumin (OVA) sensitization after birth, and those in the mixed probiotics group were then given probiotic solution by gavage from day 21 to day 35.Mice in control group were similarly given 9 g/L saline.Twenty-four hours after the last OVA sensitization, intestinal histopathological sections were prepared to observe intestinal pathological changes.Blood smears were prepared to detect eosinophil count.In addition, serum samples were collected to measure cytokine levels and OVA specific antibodies.The number of dendritic cells (DCs) and regulatory T cells (Tregs) in mouse mesenteric lymph nodes was calculated.Differences among 3 groups were compared by the One- Way ANOVA or Kruskal- Wallis H test. Results:Compared with those of food allergy model group, diarrhea score, the ratio of eosinophils and serum levels of interleukin(IL)-4, IL-5, IL-13, mast cell protease 1 (MCPT-1), and OVA specific antibodies IgE and IgG were significantly lower in mixed probiotics group[(2.00±0.71) points vs.(3.22±0.97) points, (2.28±1.61)% vs.(10.99±2.26)%, (413.68±22.81) ng/L vs.(708.78±27.66) ng/L, (36.64±3.74) ng/L vs.(46.05±4.95) ng/L, (201.37±65.61) ng/L vs.(495.22±96.66) ng/L, (31 924.15±1 177.77) ng/L vs.(36 175.77±618.29) ng/L, (9.10±8.08) ng/L vs.(19.69±0.84) ng/L, (30.50±8.81) ng/L vs.(190.32±6.40) ng/L], while IL-10 level was significantly higher[(164.12±3.88) ng/L vs.(123.90±7.31) ng/L] ( t=3.37, 8.72, 16.07, 3.90, 7.40, 7.95, 3.91, 44.00 and 7.76, respectively, all P<0.01). Compared with those of food allergy model group, programmed cell death ligand 1 (PD-L1) level on the surface of CD 103+ DCs and CD 103+ CD 80-CD 40-DCs, the proportion of Tregs in CD4 + T cells, and the level of programmed cell death 1 (PD-1) on the surface of Tregs were significantly higher in mixed probiotics group[(75.59±0.45)% vs.(45.60±4.73)%, (67.56±1.87)% vs.(37.12±6.07)%, (8.24±0.69)% vs.(6.20±0.66)%, (11.25±3.12)% vs.(4.08±2.33)%]( t=7.88, 4.48, 3.63 and 3.71, all P<0.01). Conclusions:Mixed probiotics can alleviate the symptoms of food allergy and inflammatory response of young rats through mediating Tregs via the PD-1/PD-L1 pathway.

Objective To investigate the effect of fecal microbiota transplantation (FMT) on a rat model of hypertriglyceridemic acute pancreatitis (HLAP). Methods A total of 72 male Sprague-Dawley rats were randomly divided into sham-operation group, model group, Rheum officinale group, and fecal microbiota group, with 18 rats in each group. After 8 weeks of feeding with high-fat diet, the rats in the sham-operation group were given sham operation, and those in the other three groups were given retrograde pancreaticobiliary injection of 5% sodium taurocholate to induce acute pancreatitis; after modeling, the rats in the Rheum officinale group were given enema with Rheum officinale , and those in the fecal microbiota group were given enema with fresh fecal microbiota solution. Blood, pancreatic, and terminal ileal tissue samples were collected at 6, 24, and 36 hours after surgery. HE staining was used to observe histopathological changes of the pancreas and the intestine; an automatic biochemical analyzer was used to measure the serum levels of amylase, alanine aminotransferase (ALT), aspartate aminotransferase (AST), total cholesterol (TC), triglyceride (TG), low-density lipoprotein cholesterol (LDL-C), and high-density lipoprotein cholesterol (HLD-C); ELISA was used to measure the serum levels of interleukin-6 (IL-6), tumor necrosis factor-α (TNF-α), and endotoxin as an index for intestinal permeability. A one-way analysis of variance was used for comparison of normally distributed continuous data between multiple groups, and the least significant difference t -test or the Tamhane T2 test was used for further comparison between two groups; the Kruskal-Wallis H test was used for comparison of non-normally distributed continuous data between multiple groups, and the Bonferroni method was used for further comparison between two groups. Results Compared with the sham-operation group, the Rheum officinale group and the fecal microbiota group had no significant increase in the pathological score of the terminal ileum at 6 and 24 hours, and there was no significant difference between the fecal microbiota group and the sham-operation group at 36 hours (all P > 0.05). At 36 hours, the Rheum officinale group and the fecal microbiota group had a significantly lower serum level of amylase than the model group (all P < 0.05). Compared with the model group, the Rheum officinale group had a significantly lower serum level of ALT at 36 hours ( P < 0.05) and a significantly lower serum level of AST at 24 hours ( P < 0.05), while the fecal microbiota group had a significantly lower level of ALT at each time point ( P < 0.05) and a significantly lower serum level of AST at 24 and 36 hours (all P < 0.05). The Rheum officinale group and the fecal microbiota group had significant reductions in the serum levels of TC and TG (all P < 0.05); compared with the Rheum officinale group, the fecal microbiota group had a significantly higher serum level of HDL-C at 24 and 36 hours (all P < 0.05), and compared with the model group, the fecal microbiota group had a significantly lower serum level of HDL-C at each time period (all P < 0.05). There were no significant differences in the inflammatory indices IL-6 and TNF-α between the fecal microbiota group and the sham-operation group at each time point (all P > 0.05), and the Rheum officinale group had significantly higher levels than the sham-operation group (all P < 0.05); both the Rheum officinale group and the fecal microbiota group had a significantly lower serum level of endotoxin than the model group (all P < 0.05), and the fecal microbiota group had a significantly lower level of endotoxin than the Rheum officinale group within 6 hours of treatment ( P < 0.05). Conclusion Both Rheum officinale and fecal microbiota transplantation can improve tissue inflammation and intestinal permeability in HLAP rats and can improve lipid metabolism and alleviate the progression of pancreatitis to a certain extent, and fecal microbiota transplantation shows a better clinical effect than Rheum officinale alone, but more randomized controlled trials are needed for further investigation.

Objective:To retrieve, evaluate, and summarize the best evidence for the assessment of gastrointestinal function in critically ill patients by bedside ultrasound.Methods:Guidelines, evidence summaries, group standards, expert consensus, systematic reviews, and randomized controlled trials on the assessment of gastrointestinal function in critically ill patients by bedside ultrasound were retrieved by computer on domestic and foreign guideline websites, society websites and databases based on evidence-based nursing. The search period was from January 1, 2010 to April 30, 2021. The quality of the article was independently assessed by two researchers using the Appraisal of Guidelines for Research and Evaluation Ⅱ and the critical appraisal tool of the Joanna Briggs Institute (JBI) in Australia (2016) . Combined with the judgment of the research team, the data from the article that met the criteria were extracted and the evidence was graded and recommended according to the JBI quality level of evidence system (2014 Edition) .Results:A total of 22 articles were included, involving 5 guidelines, 1 evidence summary, 1 group standard, 6 expert consensuses, 4 systematic reviews, and 5 randomized controlled trials. A total of 33 pieces of evidence were summarized from 6 aspects, namely, the feasibility of nurses applying bedside ultrasound, fundamentals of ultrasound assessment of gastrointestinal tract, ultrasound assessment of gastric contents, ultrasound assessment of gastric motility, ultrasound assessment of bowel, ultrasound guided enteral nutrition program.Conclusions:Nurses who have been systematically trained can use ultrasound to assess gastrointestinal function in critically ill patients in real time. Ultrasound-guided enteral nutrition for critically ill patients needs to be standardized and improved, and many studies need to be carried out.

Objective:To report our experience in diagnosis and treatment of posterior atlantoaxial dislocation with odontoid retrolisthesis.Methods:A retrospective study was conducted of the 5 patients who had been treated from July 2012 to August 2018 at Department of Orthopaedics, General Hospital of Southern Theater Command for posterior atlantoaxial dislocation. They were 4 men and one woman, aged from 34 to 67 years (average, 47 years). All of them had a history of trauma. Of them, 4 were complicated with odontoid fracture and one with congenital free os odontoideum. Their posterior atlantoaxial dislocation ranged from 3 to 9 mm (average, 6 mm). By the American Spinal Injury Association (ASIA) grading system, their preoperative spinal injury was rated as grade B in one, as grade C in 3 cases and as grade D in one. All the 5 patients underwent skull traction at 10° flexion. Surgical trans-oralpharyngeal atlantoaxial reduction and internal fixation was performed for the one patient whose reduction had not been achieved by traction while posterior atlantoaxial screw-rod fixation or anterior odontoid screwing was conducted for the 4 patients whose reduction had been achieved by traction. The distance of posterior atlantoaxial dislocation was measured to evaluate their reduction and ASIA grade system was used to assess their spinal function after operation.Results:The postoperative distance of posterior atlantoaxial dislocation was 0 mm, showing a reduction rate of 100%. The 5 patients were followed up for 6 to 36 months (average, 15 months). By the ASIA grade system, the postoperative functional recovery of the spine was grade D in 4 cases and grade C in one. No implant loosening or breakage occurred.Conclusion:As a kind of high-energy hyperextension injury, posterior atlantoaxial dislocation is rare in clinic, but an appropriate treatment can be adopted to deal with its different clinical types to achieve good outcomes.

Objective: To compare the effects of different types of strength training on upper limbs’ body composition and maximum strength and bone density of male university students, so as to provide a reference for college students to choose reasonable resistance training methods. Methods: Forty-two male university students were randomly divided into three experimental groups: maximum-strength group, MS(n=12); speed-strength group, SS(n=15); strength-endurance group, SE(n=15). All subjects were subject to resistance training for 6 weeks, twice a week. Incremental load method was used to determine the maximum strength of the subject to develop a training program. Upper limbs’ Body Composition and BMD were performed by Dual energy X-ray absorptionmetry. Results: After the continuous training for 6 weeks, maximum strength of upper limbs increased significantly with training time，SE grows faster[(51.00±4.81)(67.20±5.66)(76.87±6.21)kg]; The body fat percentage of SS group and SE group decreased significantly[(13.50±4.10)%，(12.60±2.80)%；(13.70±3.80)%，(12.70±3.10)%](t=2.35，2.30，P<0.05), while LM of upper limb increased significantly[(5.19±0.59)(5.86±0.61)；(5.27±0.72)(6.21±0.59)kg](t=-2.48，-2.94，P<0.05). There was no significant difference in the body fat percentage and LM of upper limb between MS group[(14.0±3.3)%，(13.6±2.3)%] and SE group[(5.33±0.81)(5.41±0.79)kg](t=0.31，-0.22，P>0.05); BMC and BMD of upper limbs increased in all groups, but the increase of SS group and SE group was statistically significant(t=-3.07，-2.43，P<0.05). Conclusion Strength endurance resistance training for male college students can effectively promote muscle strength growth, increase bone density and improve upper limb composition.