Objective To observe the effect of Valsartan on a rat model of acute lung injury and the expression of transforming growth factor-β,TGF-β) ,Smad2/3, Smad7. Methods Twenty-four male adult Sprague-Dawley rats were random divided into three groups : The bleomycin (BLM) group, the control group, and the Valsartan group. Each group contained eight rats. The Valsartan group was treated with Valsartan everyday at a dose of 20 mg/kg after a single intratracheal instillation of bleomycin at a dose of 5mg/kg. BLM group was treated with saline instead of Valsartan after an instillation of bleomycin. The control group was treated with saline instead of Valsartan and bleomycin. Each group was killed at the 7th day after instillation. The lung tissues were harvested for H. E. stain, the immunohistochemistry was used to detect the expressions of TGF-β1, Smad2/3 ,and Smad7. Results The degree of alveolitis in the Valsartan group was ameliorated, compared with those in BLM group (P ＜0. 01). The expressions of TGF-β1 and Smad2/3 in lung tissue of the Valsartan group were significantly lower than that of BLM group(P ＜0. 01). The expressions of Smad7 in lung tissue of the Valsartan group were significantly higher than that of BLM group (0.23 ±0. 02 vs0. 36 ±0.03, P ＜0.01). Conclusions Valsartan could alleviate acute lung injury in rats, which probably be due to the expression decrease of TGF-β1 and Smad2/3 and the expression increase of Smad7 in lung tissues.

Objective To observe the clinical curative effect of computer aided cognitive rehabilitation system for the treatment of cognitive impairment after stroke.Methods The data of 70 cases of cognitive impairment after stroke patients were randomly selected from November 2011-November 2012 in our hospital,according to the treatment method,patients were randomly divided into research group (n=35) and control group (n=35).The control group patients were given cognitive training,sports and drugs and other conventional treatment.On the basis of conventional treatment,the research group patients were given computer aided cognitive rehabilitation system treatment.Then we observed and compared the clinical curative effect of two groups of patients after treatment.Results The cognitive rating scale (LOTCA) scores in patients in the research group was better than that in the control group,the difference was statistically significant (P ＜ 0.05) The simple mental state examination (MMSE) score of patients in the research group was better than that in the control group,the difference was statistically significant (P ＜ 0.05).Conclusion Computer assisted cognitive rehabilitation system for patients with cognitive impairment after stroke has significant curative effect,and should be popularized and widely used in clinical treatment.

Objective:To investigate the diagnostic value of 11C-Pittsburgh compound B (PIB) in patients with mild cognitive impairment (MCI) and Alzheimer′s disease (AD) and explore the factors that may affect the binding of 11C-PIB. Methods:From January 2017 to December 2019, the 11C-PIB uptake of 6 patients with normal cognitive (NC; 3 males, 3 females, age: (64.5±12.3) years), 11 patients with MCI (4 males, 7 females, age: (64.5±9.8) years) and 21 patients with AD (7 males, 14 females, age: (68.1±9.1) years) from Daping Hospital, Army Medical University were retrospectively analyzed. Regional 11C-PIB binding was assessed by using standardized uptake value ratio (SUVR) and visual reading of 11C-PIB scan. Clinical data, including age, gender, education level, cognitive impairment, neuropsychological scale score, vascular risk factors (VRF), apolipoprotein E (ApoE) gene, were collected and differences among groups were analyzed by using one-way analysis of variance, least significant difference t test or Fisher exact test. Factors that affected the 11C-PIB binding were analyzed by multiple linear regression. Results:SUVR of cerebral lobe among NC, MCI and AD groups were significantly different (range of mean SUVR: 1.16-1.26, 1.19-1.35 and 1.40-1.61; F values: 5.331-9.279, all P<0.05). For positive PIB patients, SUVR of posterior cingulate and precuneus were increased in MCI group compared with NC group (1.20±0.15 vs 1.50±0.12, 1.18±0.15 vs 1.59±0.13; F values: 6.389 and 10.668, t values: -2.33 and -3.10, both P<0.05), and there were no significant differences in all lobes between MCI and AD group ( t values: from -1.29 to -0.51, all P>0.05). Visual analysis showed that the positive rates of PIB in frontal lobe (85.7%(18/21)), posterior cingulate (85.7%(18/21)), precuneus (81.0%(17/21)), temporal lobe (81.0%(17/21)) and occipital lobe (47.6%(10/21)) in AD were higher than those in MCI (4/11, 4/11, 4/11, 3/11 and 1/11, respectively; all P<0.05). Multiple linear regression showed that the degree of cognitive impairment were independent risk factors for SUVR of all lobes ( b values: 0.377-0.536, all P<0.05). The ApoE ε4 gene was independent risk factor for SUVR of precuneus ( b=0.290, P<0.05). Conclusion:11C-PIB is helpful for clinical diagnosis of MCI and AD patients and the degree of cognitive impairment and ApoE ε4 gene may be independent risk factors for increasing 11C-PIB binding.

Objective To establish the enzyme-linked immunosorbent assay (ELISA) methods for the quantitative determination of IgG antibodies against diphtheria (DT) and tetanus (TT).MethodsPurified diphtheria toxiod and tetanus toxoid were respectively used as the coating antigens,the human-derived serum antibody standard substance of DT and TT served as the standard substance.The dose-response curves of the tested samples and standard substance were fitted.Then the two quantitative ELISA methods for determining the antibody to DT (Anti-DT) and antibody to TT (Anti-TT) were established with the parallel lines method.Then the methodological verification and application study were conducted.Results The validation results of the two quantitative ELISA measurement methods were in accordance with the regulations.The quantity limit of ELISA method for quantitative detection of Anti-DT demonstrated to be 0.084 mIU/mL,its average recovery rate was 97.6%.The intra-assay coefficient of variation(CV) and inter-assay CV of this Anti-DT assay were ≤ 3.40% and ≤5.05%,respectively.The quantity limit of ELISA method for quantitative detection of Anti-TT demonstrated to be 0.175 mIU/mL,its average recovery rate was 97.5%.The intra-assay CV and inter-assay CV of this Anti-TT assay were ≤ 2.42% and ≤5.58%,respectively.These two methods were applied for the immunogenicity evaluation after infantile basic immunization by diphtheria and tetanus vaccines.Conclusion The two established quantitative ELISA methods demonstrate high accuracy and good reproducibility,which are suitable for the ordinary laboratory to carry out the work and can be used in the serological effect evaluation after diphtheria and tetanus vaccine immunization and epidemiological study of diphtheria and tetanus disease.

Catalpol,an iridoid glucoside isolated from Rehmannia glutinosa,has gained attention due to its potential use in treating cardio-cerebrovascular diseases(CVDs).This extensive review delves into recent studies on catalpol's protective properties in relation to various CVDs,such as atherosclerosis,myocardial ischemia,infarction,cardiac hypertrophy,and heart failure.The review also explores the compound's anti-oxidant,anti-inflammatory,and anti-apoptotic characteristics,emphasizing the role of vital signaling pathways,including PGC-1a/TERT,PI3K/Akt,AMPK,Nrf2/HO-1,estrogen receptor(ER),Nox4/NF-κB,and GRP78/PERK.The article discusses emerging findings on catalpol's ability to alleviate diabetic cardiovascular complications,thrombosis,and other cardiovascular-related conditions.Although clinical studies specifically addressing catalpol's impact on CVDs are scarce,the compound's established safety and well-tolerated nature suggest that it could be a valuable treatment alternative for CVD patients.Further investigation into catalpol and related iridoid derivatives may unveil new opportunities for devising natural and efficacious CVD therapies.

Autophagy is a highly conserved intracellular catabolic process used to degrade cytoplasmic components. In recent years, it has attracted much attention because of its importance in the pathogenesis and targeted therapy of acute and chronic kidney disease. Autophagy plays an important role in maintaining renal homeostasis under physiological and pathological conditions. The study of conditional autophagy related gene knockout specific to various renal cells has gradually revealed the role of autophagy in renal diseases. Recent studies have found that autophagy deficiency may play a key role in different pathological states of the kidney. Activated autophagy shows cytoprotective function in both glomerulus and renal tubulointerstitium, suggesting that the up regulation of autophagy may become a potential therapeutic strategy. However, there is also contrary evidence that autophagy may be harmful, which poses a great challenge to the development of therapeutic strategies for up-regulated autophagy.

【Objective】 To study the quality control of human albumin intermediates content in production process using High Performance Liquid chromatography (HPLC) method. 【Methods】 In accordance with the general principles of The Chinese Pharmacopoeia (2015 edition), 3121 human albumin polymer was used to determine the component V precipitation solution, human albumin stock solution, human albumin semi-finished products and human albumin products in the production process of human albumin. The chromatographic retention time and the chromatographic peak area percentage corresponding to the retention time were analyzed. 【Results】 The polymer content of component V precipitation solution, human albumin stock solution, human albumin semi-finished products, and human albumin products were was 0.2% vs 0.0% vs 1.9% vs 1.7%, 0.2% vs 0.0% vs1.8% vs1.5% and 0.1% vs 0.0% vs 1.6% vs 1.5%, respectively. 【Conclusion】 HPLC can be used as a monitoring method for human albumin production.

OBJECTIVETo evaluate the clinical effects on incomplete intestinal obstruction treated with the adjuvant therapy of acupuncture and moxibustion.

METHODSUsing the retrospective analysis, 80 patients of incomplete intestinal obstruction were divided into an observation group and a control group, 40 cases in each one. In the control group, the routine treatment was given, such as fasting, gastrointestinal decompression, parenteral nutrition, infection prevention with antibiotics and enema laxative. In the observation group, on the basis of the treatment as the control group, acupuncture was applied at bilateral Zusanli (ST 36), Shangjuxu (ST 37) and Xiajuxu (ST 39); moxibustion was used at left Yangchi (TE 4), Zhongwan (CV 12), Qihai (CV 6) and Guanyuan (CV 4). The treatment was given once a day, 30 min each time. The average days of treatment, the surgical transfer rate, the time to first flatus, the recovery time of defecation and the time of solid food intake were observed in the patients of the two groups.

RESULTSThe average days of treatment in the observation group was obviously less than that in the control group (<0.05). The surgical transfer rate in the observation group was obviously lower than that in the control group (<0.05). The time to first flatus, the recovery time of defecation and the time of solid food intake were all obviously earlier than those in the control group (all <0.05).

CONCLUSIONThe adjuvant therapy of acupuncture and moxibustion achieves the significant therapeutic effects on incomplete intestinal obstruction, shortens the treatment duration and reduces the surgical transfer rate and the patient's economic burden.

【Objective】 To establish and verify the vacuum decay method for the tightness inspection of blood products. 【Methods】 The method for inspecting the tightness of blood product was established, and the detection limit, linearity, range, accuracy, precision and durability were verified according to the requirements of methodological verification.The validated method was used to check the tightness of blood product packaging. 【Results】 The detection limit of this method was 2.5 μm, linear correlation coefficient was r=1, the differential pressure of positive sample was within the allowable range of accuracy, and the durability met the requirements.The RSD of results of 6 repeatability tests and 12 intermediate precision tests were both less than 10%, and all validation items met the verification standards. 【Conclusion】 Vacuum decay method can be used to check the tightness of blood products.

【Objective】 To establish gas chromatography for the determination of tributyl phosphate(TBP) residues in human prothrombin complex and then verify it. 【Methods】 Acid modified polyethylene glycol(PEG)(20M) capillary column was used with n-hexane as solvent. The chromatographic parameters were as follows: gasification chamber temperature at 220 ℃, column temperature at 155 ℃, detector temperature at 220 ℃, column flow rate at 2.0 mL/min, carrier gas as N2, detector as FID, and collection time for 10min. The accuracy, repeatability, linearity, specificity, intermediate precision, detection limit, quantitative limit, range and durability were verified. 【Results】 The verification results showed that the method had good specificity. The linear regression correlation coefficient of standard curve was 0.999 90. The recovery rate were 98.4%, 97.5% and 95.7% when the concentration at 50%, 100%(30μg/mL) and 150%, respectively, with an average recovery of 97.2% and a relative deviation of 2.15%. When the concentration was 100%, the repeatability was 2.08%, and the relative deviation of intermediate precision was 1.63%. The detection limit was 0.255 μg/mL, and the quantitative limit was 0.511 μg/mL. After changing capillary chromatographic columns with different batch numbers but the same types and manufacturer, the applicability test of the system met the requirements, and the method had good durability. 【Conclusion】 This method can be used for the determination of TBP residues of human prothrombin complex in laboratory.