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1.
Article in English | WPRIM | ID: wpr-916998

ABSTRACT

Background@#The poor bioadhesion capacity of tilmicosin resulting in treatment failure for Staphylococcus aureus small colony variants (SASCVs) mastitis. @*Objectives@#This study aimed to increase the bioadhesion capacity of tilmicosin for the SASCVs strain and improve the antibacterial effect of tilmicosin against cow mastitis caused by the SASCVs strain. @*Methods@#Tilmicosin-loaded chitosan oligosaccharide (COS)-sodium carboxymethyl cellulose (CMC) composite nanogels were formulated by an electrostatic interaction between COS (positive charge) and CMC (negative charge) using sodium tripolyphosphate (TPP) (ionic crosslinkers). The formation mechanism, structural characteristics, bioadhesion, and antibacterial activity of tilmicosin composite nanogels were studied systematically. @*Results@#The optimized formulation was comprised of 50 mg/mL (COS), 32 mg/mL (CMC), and 0.25 mg/mL (TPP). The size, encapsulation efficiency, loading capacity, polydispersity index, and zeta potential of the optimized tilmicosin composite nanogels were 357.4 ± 2.6 nm, 65.4 ± 0.4%, 21.9 ± 0.4%, 0.11 ± 0.01, and -37.1 ± 0.4 mV, respectively; the sedimentation rate was one. Scanning electron microscopy showed that tilmicosin might be incorporated in nano-sized crosslinked polymeric networks. Moreover, adhesive studies suggested that tilmicosin composite nanogels could enhance the bioadhesion capacity of tilmicosin for the SASCVs strain. The inhibition zone of native tilmicosin, tilmicosin standard, and tilmicosin composite nanogels were 2.13 ± 0.07, 3.35 ± 0.11, and 1.46 ± 0.04 cm, respectively. The minimum inhibitory concentration of native tilmicosin, tilmicosin standard, and tilmicosin composite nanogels against the SASCVs strain were 2, 1, and 1 µg/mL, respectively. The in vitro time-killing curves showed that the tilmicosin composite nanogels increased the antibacterial activity against the SASCVs strain. @*Conclusions@#This study provides a potential strategy for developing tilmicosin composite nanogels to treat cow mastitis caused by the SASCVs strain.

2.
Article in English | WPRIM | ID: wpr-888245

ABSTRACT

ObjectiveTo describe the epidemiologic, clinical, laboratory, and radiological characteristics and prognoses of COVID-19 confirmed patients in a single center in Beijing, China. Methods The study retrospectively included 19 patients with nucleic acid-confirmed SARS-CoV-2 infection at our hospital from January 20 to March 5, 2020. The final follow-up date was March 14, 2020. The epidemiologic and clinical information was obtained through direct communication with the patients or their family members. Laboratory results retrieved from medical records and radiological images were analyzed both qualitatively by two senior chest radiologists as well as quantitatively via an artificial intelligence software. Results We identified 5 family clusters (13/19, 68.4%) from the study cohort. All cases had good clinical prognoses and were either mild (3/19) or moderate (16/19) clinical types. Fever (15/19, 78.9%) and dry cough (11/19, 57.9%) were common symptoms. Two patients received negative results for more than three consecutive viral nucleic acid tests. The longest interval between an initial CT abnormal finding and a confirmed diagnosis was 30 days. One patient's nucleic acid test turned positive on the follow-up examination after discharge. The presence of radiological abnormalities was non-specific for the diagnosis of COVID-19. Conclusions COVID-19 patients with mild or no clinical symptoms are common in Beijing, China. Radiological abnormalities are mostly non-specific and massive CT examinations for COVID-19 screening should be avoided. Analyses of the contact histories of diagnosed cases in combination with clinical, radiological and laboratory findings are crucial for the early detection of COVID-19. Close monitoring after discharge is also recommended.


Subject(s)
Adult , COVID-19/diagnostic imaging , COVID-19 Nucleic Acid Testing , Child , China , Female , Humans , Lung/diagnostic imaging , Male , Middle Aged , Retrospective Studies , SARS-CoV-2 , Tomography, X-Ray Computed
3.
Acta Pharmaceutica Sinica ; (12): 1945-1952, 2021.
Article in Chinese | WPRIM | ID: wpr-887010

ABSTRACT

Inhibitor of DNA binding 1 (ID1) has an aberrantly high expression in multiple cancer tissues, including colon cancer, lung cancer, breast cancer, and so on, which is closely related to cancer aggressiveness and poor clinical outcomes in cancer patients. It has been reported that ID1 maintains colorectal cancer cells (CRCs) stemness traits and contributes to the CRC drug resistance. While, the biological molecular mechanisms have not been fully elucidated. In this research, we found that ID1 upregulates octamer binding transcription factor (OCT4) protein level as well as OCT4 signaling pathway via Western blot, gene set enrichment analysis (GSEA), dual-luciferase reporter assay, and real-time PCR. Through the in vitro sphere formation assay, we found that overexpression of OCT4 reverses the inhibitory effect of knocking down ID1 on CRC sphere formation ability. With the help of JASPAR and GEPIA database, we predicted a novel transcriptional repressor—forkhead box D3 (FOXD3) of OCT4. Finally, by using co-immunoprecipitation (Co-IP), confocal and real-time PCR, we demonstrated that ID1 interacts with FOXD3 to inhibit its transcriptional repression activity and therefore to upregulate OCT4 transcription and OCT4 signaling pathway. In conclusion, this study provides a new theoretical basis for the regulation mechanism of colon cancer stem cells, and the newly found protein-protein interaction of ID1-FOXD3 provides a potential drug target for the therapy of CRC.

4.
Chinese Journal of Digestion ; (12): 260-264, 2021.
Article in Chinese | WPRIM | ID: wpr-885750

ABSTRACT

Objective:To investigate the clinical efficacy, safety and tolerance of different enteral nutritional therapy in the treatment of moderately severe acute pancreatitis (MSAP).Methods:From January 2018 to January 2019, 65 patients with MSAP who were hospitalized in Beijing Chao-Yang Hospital, Capital Medical University were prospectively enrolled. According to random number table, the patients were divided into the nasogastric tube enteral nutrition (NGEN) group (35 cases) and the nasojejunal tube enteral nutrition (NJEN) group (30 cases). All the patients received enteral nutrition solution through continuously pumping at a constant speed for 24 h. The two groups were compared in the relief time of abdominal pain, time from admission to receiving enteral nutrition treatment, time to resume oral feeding, computed tomography severity index (CTSI) score 1 week after enteral nutrition, nutrition status, infection parameters, hospitalization time, hospitalization expenses and complications. Independent sample t test and rank sum test of two independent samples were used for statistical analysis. Results:There were no significant differences in age, gender, body mass index (BMI), CTSI score and Ranson score at admission, relief time of abdominal pain, time from admission to receiving enteral nutrition treatment, time to resume oral feeding, CTSI score one week after enteral nutrition or hospitalization time between NGEN group and NJEN group (all P>0.05), and there was no death in both groups. The cost of hospitalization, catheterization time, cost of catheterization of NGEN group were all lower than those of NJEN group ((40.0±10.0) thousand yuan vs. (40.4±9.0) thousand yuan; 2.00 min (1.50 min, 2.50 min) vs. 11.50 min (9.50 min, 12.75 min); 135.42 yuan (135.42 yuan, 135.42 yuan) vs. 1 313.30 yuan (1231.20 yuan, 1 823.72 yuan)), and the differences were statistically significant ( t=2.342, Z=6.737 and 7.687, all P<0.01). The albumin levels of MSAP patients of the NGEN group at admission and 1 week after enteral nutrition were both higher than those of NJEN group ((43.5±5.1) g/L vs. (41.0±4.0) g/L, (42.1±4.1) g/L vs. (39.5±4.4) g/L), and the differences were statistically significant ( t=2.135 and 2.486, P=0.04 and 0.02), however there was no statistically significant difference in the decrease of albumin level between the two groups ( P>0.05). There were no statistically significant differences in the incidence of nutrition-related complications (abdominal distension, diarrhea, gastric retention and lumen obstruction) or the incidence of severe complications (transient organ failure and pancreatic necrosis complicated with infection) between NGEN group and NJEN group (all P>0.05). Conclusions:The efficacy and safety of NGEN are equivalent to NJEN in MSAP. Moreover, it can reduce the medical expenses of patients, and it is convenient to carry out in primary hospitals because of its easy operation.

5.
Article in Chinese | WPRIM | ID: wpr-885566

ABSTRACT

Objective:To analyze the maternal gestational weight gain (GWG) in women with pre-pregnancy obesity and its relationships with adverse pregnancy outcomes.Methods:This retrospective cohort study recruited 513 obese women (pre-pregnancy body mass index ≥30 kg/m 2) with singleton pregnancy in Beijing Obstetrics and Gynecology Hospital, Capital Medical University from January 2014 to December 2016. All participants were divided into three groups according to GWG: inadequate (GWG<5 kg, n=83), adequate (5 kg≤GWG≤9 kg, n=154), and excessive (GWG>9 kg, n=276) groups. Chi-square test, Fisher's exact test, Kruskal-Wallis test, and Mann-Whitney U test were used to compare the clinical data among the three groups, including GWG, pregnancy and neonatal outcomes, and labor process. Multivariate logistic regression was performed to analyze the association between maternal GWG and main pregnancy complications associated with obesity. Results:(1) Among 238 participants who gained more than 2.0 kg in the first trimester, 75.6% (180/238) were in the excessive group, while the rate was 34.9%(96/275) among the participants who gained less than 2.0 kg. (2) Postpartum body mass index retention (body mass index at six weeks postpartum minus pre-pregnancy body mass index) was the highest in the excessive group, followed by the adequate group and the inadequate group [0.8 kg/m 2 (0.0-2.2 kg/m 2) vs -0.7 kg/m 2 (-1.6 to 0.0 kg/m 2) vs -2.5 kg/m 2 (-3.2 to -1.5 kg/m 2), all P<0.05]. (3) The rates of primary cesarean section in the inadequate and adequate groups were 29.9% (20/67) and 32.6% (42/129), which were lower than that in the excessive group [43.3% (104/240), χ2=3.955 and 4.047, both P<0.05]. There were no statistically significant differences in the incidence of gestational hypertension, small/large for gestational age, or other major adverse pregnancy outcomes among the three groups (all P>0.05). The weight gain in the first trimester and before the oral glucose tolerance test were not correlated with gestational diabetes mellitus (GDM) ( aOR=1.038, 95% CI: 0.986-1.094, P=0.157; aOR=1.055, 95% CI: 1.000-1.113, P=0.051). The maternal weight gain of women with GDM during the 2nd, the 3rd, and the whole trimesters were lower than women without GDM respectively [3.0 kg (1.3-4.0 kg) vs 3.0 kg (2.0-5.0 kg), 4.0 kg (2.0-6.0 kg) vs 6.0 kg (4.0-8.0 kg), 9.0 kg (5.0-12.0 kg) vs 10.7 kg (7.5-15.0 kg); Z =-2.938, -6.352 and-4.104, all P<0.01]. Conclusions:In women with pre-pregnancy obesity, the first trimester is the critical window to control maternal GWG. GWG guidelines recommended by the Institute of Medicine could help to reduce the weight retention at six weeks postpartum, but couldn't reduce the risk of GDM, gestational hypertension, small/large for gestational age, or other major adverse pregnancy outcomes.

6.
Article in Chinese | WPRIM | ID: wpr-884177

ABSTRACT

Objective:To investigate the diagnostic performance of Xpert Mycobacterium tuberculosis/rifampin (Xpert MTB/RIF) assay for pulmonary tuberculosis (TB) in patients with acquired immunodeficiency syndrome (AIDS). Methods:Clinical data of 226 patients with AIDS and suspected pulmonary TB in Shanghai Public Health Clinical Center, Fudan University from July 2017 to November 2019 were retrospectively analyzed. Fluorescence staining microscopy of sputum smear, BACTEC MGIT 960 liquid culture (or Roche solid culture) and Xpert MTB/RIF assay were implemented respectively. The sensitivity and specificity of Xpert MTB/RIF in the diagnosis of Mycobacterium tuberculosis (MTB) infection and rifampin resistance were analyzed. Results:Totally 226 patients of suspected pulmonary TB were enrolled. There were 94(41.6%) patients had positive mycobacterium culture, in which 51 (54.3%) were MTB and 43 (45.7%) were nontuberculous mycobacteria (NTM). Using the positive MTB culture of sputum and mycobacterial protein from BCG of Rm 0.64 in electrophoresis (MPB64) as reference standard, the sensitivity and specificity of Xpert MTB/RIF assay for MTB diagnosis were 72.6%(95% confidence interval ( CI) 66.7%-78.4%) and 97.1% (95% CI 95.0%-99.3%), respectively. The sensitivity and specificity of Xpert MTB/RIF assay for MTB diagnosis in patients with positive sputum smear were 76.7%(95% CI 67.7%-85.8%) and 90.0(95% CI 83.6%-96.5%), respectively. The sensitivity and specificity of Xpert MTB/RIF assay for MTB diagnosis in patients with negative sputum smear were 50.0%(95% CI 41.8%-58.2%)and 99.3%(95% CI 97.9%-100.0%), respectively. With phenotypic resistance as reference standard, the sensitivity and specificity of Xpert MTB/RIF assay for rifampicin resistance were 75.0% and 100.0%, respectively. Conclusion:Among AIDS patients, the performance of Xpert MTB/RIF assay for pulmonary TB diagnosis is pretty good and could differentiate MTB from NTM rapidly, which has good application value.

7.
Article in Chinese | WPRIM | ID: wpr-882078

ABSTRACT

Objective To evaluate the application value of tranexamic acid in total knee arthroplasty. Methods 120 elderly patients with knee osteoarthritis admitted to Department of Joint Surgery in our hospital from December 2018 to March 2020 were selected as study subjects. They were divided into the control group and the observation group by random number table method, with 60 patients in each group. The control group was treated with total knee arthroplasty. The observation group received one tranexamic acid injection during and after total knee arthroplasty. Both groups were followed up for 6 months after the operation. The operation-related indexes in two groups, preoperative and postoperative coagulation function 48 h after operation, preoperative and postoperative knee joint function 6 months after operation were compared. The incidence of complications during hospitalization in the two groups was counted. Results The intraoperative blood loss, hidden blood loss and postoperative drainage volume of the observation group were lower than those in the control group (P<0.05). The postoperative drainage time, drying time and wound healing time in the observation group were all shorter than those in the control group (P<0.05). There was no significant difference in prothrombin time (PT), partial thromboplastin time (APTT) and whole blood fibrinogen (FIB) between two groups before the surgery and 48 h after operation (P>0.05). No statistically significant difference was observed between the two groups (P>0.05). Compared with those before operation, the pain, walking stability, walking distance, walking assistance, flexor extension and muscle strength scores of the subjects in the two groups increased 6 months after the operation. The index scores in the observation group were higher than those in the control group (P<0.05). During the treatment, the total complication rate was 8.33% in the observation group and 13.33% in the control group, with no statistically significant difference between the two groups (P>0.05). Conclusion Tranexamic acid can effectively reduce blood loss, postoperative drainage volume, and postoperative drainage time in total knee arthroplasty for elderly patients with knee osteoarthritis. It promotes wound healing, improves knee joint function, and has little effect on coagulation function and less postoperative complications.

8.
Organ Transplantation ; (6): 692-2021.
Article in Chinese | WPRIM | ID: wpr-904552

ABSTRACT

Objective To evaluate the effect of liver transplantation on intestinal microflora in children with biliary atresia. Methods The fecal samples and liver function indexes of 16 children with biliary atresia before and 6 months after liver transplantation were collected, and 10 healthy children were selected as the healthy controls. DNA extraction and metagenome sequencing were carried out in the fecal samples. Statistical analysis was performed by software packages, such as R language. The changes of species structure and functional composition of intestinal microflora after liver transplantation were analyzed. The recovery of intestinal microflora in children with biliary atresia after liver transplantation was assessed. The relationship between intestinal microflora and liver function indexes was investigated. Results Following liver transplantation, the number of species of intestinal microflora in children with biliary atresia was increased. The opportunistic pathogens were the dominant species of intestinal microflora in children with biliary atresia before liver transplantation. The abundance of opportunistic pathogens was decreased and the abundance of short-chain fatty acid-producing bacteria was increased after liver transplantation (all P < 0.05). Following liver transplantation, lipid metabolism, amino acid metabolism, carbohydrate metabolism, energy metabolism, metabolism of cofactors and vitamins were enhanced, whereas infectious diseases of bacterial, immune diseases and drug resistance were weakened. Compared with the healthy control group, there were no statistically significant differences in the diversity and structure of intestinal microflora in the post-liver transplant group, but different species were observed between two groups. The liver function indexes of children with biliary atresia after liver transplantation tended to decline (all P < 0.000 1). The abundance of beneficial intestinal microflora was negatively correlated with liver function indexes, whereas the abundance of opportunistic pathogens was positively correlated with liver function indexes (all P < 0.05). Conclusions Liver transplantation may significantly improve the structure and functional composition of intestinal microflora in children with biliary atresia.

9.
Chinese Journal of Biotechnology ; (12): 1277-1286, 2021.
Article in Chinese | WPRIM | ID: wpr-878630

ABSTRACT

Microbial cell factories capable of producing valuable chemicals from renewable feedstocks provide a promising alternative towards sustainability. However, environmental stress remarkably affects the performance of microbial cell factories. By extending the chronological lifespan of microbial cells, the performance of microbial cell factories can be greatly improved. Firstly, an evaluation system for chronological lifespan and semi-chronological lifespan was established based on the changes in survival rates. Secondly, the addition of anti-aging drugs such as cysteine, carnosine, aminoguanidine and glucosamine increased the chronological lifespan of E. coli by 80%, 80%, 50% and 120%, respectively. Finally, we demonstrated that extending the chronological lifespan of E. coli increased the yield of metabolites produced by E. coli cell factories with endogenous (lactic acid and pyruvic acid) or exogenous (malic acid) metabolic pathway by 30.0%, 25.0%, and 27.0%, respectively. The strategy of extending chronological lifespan of E. coli provides a potential approach for enhancing the performance of microbial cell factories.


Subject(s)
Escherichia coli/genetics , Lactic Acid , Longevity , Metabolic Engineering , Metabolic Networks and Pathways
10.
Article in Chinese | WPRIM | ID: wpr-907379

ABSTRACT

Objective:To summarize and analyze the clinical and imaging manifestations of patients with acute ischemic stroke (AIS) and active cancer, and to investigate the influencing factors of the outcomes of patients.Methods:Patients with AIS and active cancer admitted to the Department of Neurology, Nanfang Hospital, Southern Medical University from January 2015 to December 2020 were enrolled retrospectively. At 90 d after onset, the outcomes were evaluated with the modified Rankin Scale. The patients were divided into good outcome group (0-2) and poor outcome group (>2). The clinical characteristics and imaging findings of the two groups were compared. Multivariate logistic regression model was used to determine the independent influencing factor of clinical outcomes in patients with AIS and active cancer. Results:A total of 46 patients with AIS and active cancer were enrolled, of which 37 (80.4%) had traditional vascular risk factors. Most patients showed multiple cerebral infarction (63.0%, 29/46). The most common etiological type was cryptogenic stroke (45.7%, 21/46), and the most common lesion distribution pattern was bilateral anterior circulation+ posterior circulation (47.8%, 22/46). Fourteen patients (30.4%) had a good outcome and 32 (69.6%) had a poor outcome. Multivariate logistic regression analysis showed that high D-dimer (odds ratio [ OR] 3.191, 95% confidence interval [ CI] 1.093-9.313; P=0.021) and bilateral anterior circulation+ posterior circulation cerebral infarction ( OR 10.001, 95% CI 1.224-81.718; P=0.032) were independently correlated with the poor outcomes, while high hemoglobin was independently correlated with the good outcomes ( OR 0.916, 95% CI 0.854-0.982; P=0.015). Conclusions:The etiology of AIS complicated with active cancer is mostly cryptogenic, and imaging is characterized by multiple lesions and bilateral anterior circulation+ posterior circulation involvement. Higher D-dimer and bilateral anterior circulation+ posterior circulation infarction are the risk factors for poor outcomes in patients with AIS and active cancer, while high hemoglobin is a protective factor of good outcomes.

11.
Article in Chinese | WPRIM | ID: wpr-906175

ABSTRACT

Objective:To study the effect of Fuzheng Qufeng prescription (FZQP) on transforming growth factor-<italic>β</italic><sub>1</sub> (TGF-<italic>β</italic><sub>1</sub>)/Smad signaling pathway and epithelial-mesenchymal transition of podocyte in membranous nephropathy (MN) rats and to explore its molecular mechanism for podocyte protection. Method:The rats were randomly divided into normal control group (NC) and modeling group. Rats in modeling group induced by bovine serum albumin (C-BSA) were randomly divided into model group (MN), losartan potassium group (LP, 0.05g·kg<sup>-1</sup>), and FZQP high dose (FZQPH, 41 g·kg<sup>-1</sup>), medium dose (FZQPM, 20.5 g·kg<sup>-1</sup>), and low dose (FZQPL, 10.25 g·kg<sup>-1</sup>) groups. The administration lasted for 4 weeks. In week 0, 2, and 4 of administration, the levels of 24 hours urine protein (24 h-Upro) were tested. At the end of 4th week, the levels of blood urea nitrogen (BUN) and serum creatinine (SCr) were detected, and the rats in each group were sacrificed and the renal pathological morphology changes were observed by light microscope with hematoxylin-eosin (HE), Masson and periodic acid-silver metheramine (PASM) staining. The deposition of immune complex, the thickening of glomerular basement membrane (GBM) and podocyte foot process were observed by transmission electron microscope (TEM). The distribution and expression intensity of Desmin in renal tissues were detected by immunohistochemistry (IHC). The mRNA and protein expression levels of TGF-<italic>β</italic><sub>1</sub>, Smad2/3, phospho(p)-Smad2/3, Smad7 and Desmin in renal tissues were respectively detected by Western blot (WB) and Real-time fluorescence quantitative polymerase chain reaction (Real-time PCR). Result:Compared with NC group, the levels of 24 h-Upro, BUN and SCr significantly increased in model group (<italic>P</italic><0.01), with increased deposition of immune complex, significantly thickened GBM and fusion of foot processes, significantly increased Desmin mRNA and protein expression (<italic>P</italic><0.01) and increased TGF-<italic>β</italic><sub>1</sub>, Smad2, and Smad3 mRNA and protein expression (<italic>P</italic><0.05), and decreased Smad7 mRNA and protein expression (<italic>P</italic><0.05,<italic>P</italic><0.01). Compared with model group, 24 h-Upro and BUN decreased in FZQP groups and LP group (<italic>P</italic><0.05), levels of serum SCr in FZQPM group decreased (<italic>P</italic><0.05), deposition of immune complex, thickening of GBM and fusion of foot process were all alleviated in FZQP groups and LP group. Distribution of Desmin along GBM decreased in FZQPH group, FZQPM group and LP group (<italic>P</italic><0.05). Both mRNA and protein expression levels of TGF-<italic>β</italic><sub>1</sub> and p-Smad2/Smad2 in FZQPM group decreased, while mRNA and protein expression levels of Smad7 increased (<italic>P</italic><0.05). Both mRNA and protein expression levels of p-Smad3/Smad3 in FZQPH group decreased (<italic>P</italic><0.05). Both mRNA and protein expression levels of Desmin in podocyte in FZQPH group, FZQPM group and LP group decreased (<italic>P</italic><0.05). Conclusion:FZQP might realize podocyte protection effect in MN via suppressing EMT mediated by overactivated TGF-<italic>β</italic><sub>1</sub>/Smad signaling pathway.

12.
Article in Chinese | WPRIM | ID: wpr-912744

ABSTRACT

Objective:To investigate the construction and application of telemedicine system in Tibet Autonomous Region.Methods:From June to July 2020, medical institutions at all levels in Tibet Autonomous Region were visited. Relevant information was collected through discussion, questionnaires and field visits, and the data of effective questionnaires were statistically analyzed.Results:A total of 125 medical institutions were visited, covering 7 regions of Tibet Autonomous Region, of which 74 medical institutions were able to realize audio-video two-way communication with the telemedicine platform of the PLA General Hospital. Seventy-three valid questionnaires were collected, and 64(88%)hospitals had software or hardware audio and video terminals. Twenty-five hospitals had never carried out remote consultation, accounting for 34%. The annual remote consultation amount of 35 hospitals was less than 10 cases, and that of 11 hospitals was 11-100 cases. Only 2 hospitals had carried out remote ECG and remote ultrasound diagnosis, with an annual consultation volume of more than 100 cases.Conclusions:The hospitals at or above the county level in Tibet Autonomous Region have established telemedicine system, but there are few remote services, the system idle rate is high, and the distance education resources are not matched.

13.
Article in Chinese | WPRIM | ID: wpr-910848

ABSTRACT

Objective:To evaluate the reliability and validity of Short-form health survey-36 (SF-36) during the first trimester of pregnancy.Methods:From January 2020 to January 2021, pregnant women aged 18―40 during the first trimester visit were admitted to the Obstetric Department of Beijing Obstetrics and Gynecology Hospital, Capital Medical University. Split-half reliability and Cronbach′s α coefficients were used to evaluate the reliability. The convergent and discriminative validity were evaluated by using AMOS 24.0 and the criterion-rated validity was evaluated with correlation analysis and non-parameter test. Exploratory factor analysis and confirmatory factor analysis based on structural equation modeling were used in the evaluation of contract validity.Results:SF-36 scale had good reliability (split-half reliability: R=0.901, Cronbach′s α coefficients=0.878), convergent validity, discriminate validity and the criterion-rated validity ( r=0.907). Second-order confirmatory factor analysis model was not well-fitted ( RMSEA=0.070, χ 2/dF=3.566, GFI=0.813, CFI=0.814, TLI=0.792, NFI=0.761), indicating that the construct validity was poor. Conclusions:The reliability, consolidation validity, discrimination validity and criterion-related validity of Sf-36 scale are good, while the construct validity is poor. Improvement is needed when the scale is used for pregnant women.

14.
Article in Chinese | WPRIM | ID: wpr-908738

ABSTRACT

Objective:To explore the factors of perioperative blood loss during total knee arthroplasty (TKA), and to analyze the influence of tranexamic acid on the amount of occult bleeding.Methods:A total of 100 patients who underwent TKA surgery in the knee surgery department of Dingzhou People′s Hospital from August 2018 to August 2020 were selected as the research subjects. According to whether tranexamic acid was used or not, they were divided into tranexamic acid group (68 cases) and non-tranexamic acid group (32 cases). The influence of the age, presence or absence of comorbidities, tourniquet use time, body mass index (BMI), platelet count (PLT) levels, and tranexamic acid use on TKA perioperative occult blood loss were analyzed.Results:Univariate analysis showed that factors such as age, presence or absence of comorbidities, tourniquet use time, BMI and PLT levels had a significant effect on occult blood loss, and the difference between different groups was statistically significant ( P<0.05), while gender and disease type, operation side, operation time and blood transfusion type had no significant effect on occult blood loss ( P>0.05); The latent blood loss in the tranexamic acid group was significantly lower than that in the non-tranexamic acid group: (662.47 ± 65.82) ml vs. (733.86 ± 59.86) ml, P<0.05. The proportion of allogeneic blood transfusion in the tranexamic acid group was significantly lower than that in the non-tranexamic acid group: 45.49%(31/68) vs. 68.75% (22/32), P<0.05. Postoperative drainage volume and perioperative total blood loss in the tranexamic acid group were significantly lower than those in the non-tranexamic acid group: (211.54 ± 85.63) ml vs. (427.61 ± 103.08) ml, (995.38 ± 187.11) ml vs. (1 276.42 ± 236.84) ml, P<0.05. Multivariate analysis showed that age, comorbidities, and tourniquet use time, and BMI were independent risk factors affecting the increase of perioperative occult blood loss ( P<0.05), and tranexamic acid was a protective factor ( P<0.05). Conclusions:Old age, comorbidities, excessive use time of tourniquets, and obesity can all cause the increase of perioperative occult blood loss during TKA. The use of tranexamic acid can effectively reduce the occult blood loss.

15.
J Cancer Res Ther ; 2020 May; 16(2): 269-275
Article | IMSEAR | ID: sea-213811

ABSTRACT

Background: Hypoxia-inducible factor 1α (HIF-1α), p53, and vascular endothelial growth factor (VEGF) are important factors that facilitate tumor progression. The aims of our study were to investigate the expression of HIF-1α, p53, and VEGF in esophageal squamous cell carcinoma (ESCC) treated by curative surgery and to analyze their association with clinicopathological parameters and clinical outcome. Materials and Methods: The surgical specimens from 120 patients who had undergone potentially curative resection for ESCC were immunohistochemically assessed using monoclonal antibodies against HIF-1α, p53, and VEGF. Results: Positive rates of HIF-1α, p53, and VEGF expression were 61.7%, 56.7%, and 78.3%, respectively. No significant relationship was found between HIF-1α, p53, VEGF expression, and the analyzed clinicopathological parameters. There was no significant correlation between the expression of HIF-1α, p53, and VEGF. Univariate analysis revealed that overexpression of HIF-1α was associated with poor disease-free and overall survival (P = 0.023 and 0.01, respectively). Multivariate analysis demonstrated that upregulation of HIF-1α is an independent predictor for poor overall survival (P = 0.044). Conclusions: HIF-1α was a useful independent prognostic factor for surgically treated ESCC. Further studies with larger sample size are required to determine the relationship between the expression of HIF-1α, p53, VEGF, and clinicopathological parameters

16.
Article in Chinese | WPRIM | ID: wpr-826381

ABSTRACT

To explore the chest high-resolution computed tomography (HRCT) features in patients with rheumatoid arthritis (RA) complicated with pulmonary involvement. Totally 161 patients with RA with lung involvement were collected from June 2014 to May 2018. The chest HRCT findings were retrospectively analyzed. According to the imaging features as well as the results of history taking,pulmonary function test,pathology,and bronchoalveolar lavage fluid test,RA-related lung diseases (RA-LD) were classified and their clinical characteristics were compared. These 161 RA-LD patients (56 males and 105 females) whose mean age at diagnosis was (60.7±12.8) years (14-85 years) included 87 cases of usual interstitial pneumonia (UIP) (including 16 cases of possible UIP),44 cases of non-specific interstitial pneumonia (NSIP),10 cases of organizing pneumonia,7 cases of lymphocytic interstitial pneumonia,9 cases of small airway disease (SAD) (including 8 cases of bronchiolitis obliterans and 1 case of follicular bronchiolitis),and 4 other lung manifestations (including 3 cases of diffuse alveolar hemorrhage and 1 case of rheumatoid nodules). The UIP group had the oldest average age [(63.3±12.1) years old] and the highest smoking rate (41.4%). The SAD group had the youngest average age [(54.7±15.1) years old] and there was no smoking history. There were significant differences between these two groups (=0.020,<0.001). Seventy patients (43.5%) with RA-LD were complicated with pleural lesions. RA involving the lung is common and has varied imaging manifestations,with interstitial lung diseases (mainly UIP and NSIP) being the most important manifestations. RA patients should undergo lung HRCT as early as possible to identify the lung involvement and related types.


Subject(s)
Adolescent , Adult , Aged , Aged, 80 and over , Arthritis, Rheumatoid , Diagnostic Imaging , Female , Humans , Lung , Lung Diseases, Interstitial , Diagnostic Imaging , Male , Middle Aged , Retrospective Studies , Tomography, X-Ray Computed , Young Adult
17.
Article in Chinese | WPRIM | ID: wpr-826353

ABSTRACT

To summarize the clinical characteristics and chest CT findings of coronavirus disease 2019(COVID-19)patients in Peking Union Medical College Hospital(PUMCH). A total of 13 patients with COVID-19 confirmed at PUMCH from January 20 to February 6,2020 were selected as the research subjects.Their epidemiological histories,clinical characteristics,laboratory tests,and chest CT findings were analyzed retrospectively.The location,distribution,density,and other accompanying signs of abnormal lung CT lesions were recorded,and the clinical types of these patients were assessed. The clinical type was "common type" in all these 13 patients aged(46.8±14.7)years(range:27-68 years).Ten patients had a travel history to Wuhan or direct contact with patients from Wuhan,2 cases had recent travel histories,and 1 case had a travel history to Beijing suburb.The white blood cell(WBC)count was normal or decreased in 92.3% of the patients and the lymphocyte count decreased in 15.4% of the patients.Twelve patients(92.3%)had a fever,among whom 11 patients were admitted due to fever and 2 patients(15.4%)had low fever.Eight patients(61.5%)had dry cough.The CT findings in these 13 patients were all abnormal.The lesions were mainly distributed along the bronchi and under the pleura.The lesions were relatively limited in 8 patients(affecting 1-3 lobes,predominantly in the right or left lower lobe),and diffuse multiple lesions of bilateral lungs were seen in 5 patients.The CT findings mainly included ground glass opacities(GGOs)(=10,76.9%),focal consolidation within GGOs(=7,53.8%),thickened vascular bundle passing through the lesions(=10,76.9%),bronchial wall thickening(=12,92.3%),air bronchogram(=10,76.9%),vacuole signs in the lesions(=7,53.8%),fine reticulation and interlobular septal thickening(=3,23.1%),reversed halo-sign(=2,15.4%),crazy-paving pattern(=2,15.4%),and pleural effusion(=2,15.4%). Most of our patients diagnosed with COVID-19 at PUMCH had a travel history to Wuhan or direct contact with patients from Wuhan.The first symptoms of COVID-19 mainly include fever and dry cough,along with normal or reduced counts of WBC and lymphocytes.CT may reveal that the lesions distribute along the bronchi and under the pleura;they are typically localized GGOs in the early stage but can become multiple GGOs and infiltrative consolidation in both lungs in the advanced stage.Scattered vacuole signs may be visible inside the lesions in some patients.


Subject(s)
Adult , Aged , Betacoronavirus , Coronavirus Infections , Diagnostic Imaging , Humans , Lung , Middle Aged , Pandemics , Pneumonia, Viral , Diagnostic Imaging , Retrospective Studies , Tomography, X-Ray Computed
18.
China Pharmacy ; (12): 2124-2128, 2020.
Article in Chinese | WPRIM | ID: wpr-825193

ABSTRACT

OBJECTIVE:To study ongoing change characteristics of the contents of syringin and total flavonoids in different medicinal parts (root bark ,tree bark ,leaf)of Toricellia angulata from Guizhou ,and to provide reference for the development and application of T. angulata . METHODS :The root bark ,tree bark and leaf parts of T. angulata during different harvesting periods (Jan.-Dec.) were taken as the research samples. The content of syringin was determined by HPLC. The determination was performed on Agela Promosil C 18 column with mobile phase consisted of 0.5% phosphoric acid solution-acetonitrile (gradient elution)at the flow rate of 1.0 mL/min. The detection wavelength was set as 210 nm,and column temperature was 35 ℃. The sample size was 5 μL. The content of total flavonoids was determined by UV-visible spectrophotometry under detection wavelength of 510 nm. RESULTS :The linear range of syringin and total flavonoids were 0.095 9-1.150 8 mg/mL(r=0.999 6)and 0.072 2- 1.083 0 mg/mL(r=0.999 9),respectively. RSDs of precision ,stability and repeatability tests were all less than 3%(n=6). The average recoveries were 101.74%(RSD=2.36% ,n=6)and 99.63%(RSD=2.19% ,n=6),respectively. During different harvesting periods ,the contents of syringin in root bark ,tree bark ,leaf of T. angulata collected on Aug. ,May and Sept. were the highest,and the contents of total flavonoids in samples collected on Feb. ,Dec. and Sept. were the highest. The contents of syringin in different medicinal parts of T. angulata were in descending order as follows as tree bark >root bark >leaf,and the content of syringin was commonly relatively high in tree bark part ;the content of total flavonoids in different medicinal parts of T. angulata were in descending order as follows as root bark >tree bark >leaf,and the contents of total flavonoids in three medicinal parts was generally low. The content of total flavonoids in root bark was the highest in Feb. of that year ,and the content of syringin in root bark at same month was second only to Aug. of that year ;the content of syringin in tree bark was the highest in May ,and the content of total flavonoids in tree bark at same month was second only to Oct. and Dec. of that year ;the contents of total flavonoids and syringin in leaf were the highest in Sept. of that year. CONCLUSIONS :It is suggested that Feb. is the best time for harvesting root bark ,May for tree bark and Sept. for leaf of T. angulata .

19.
International Eye Science ; (12): 1347-1350, 2020.
Article in Chinese | WPRIM | ID: wpr-822955

ABSTRACT

@#Nucleotide-binding oligomerization domain(NOD)-like receptor family contains Pryrin domain protein 3(NLRP3)inflammasome, which is an intracellular protein complex. Large release of ROS can activate the production of intracellular NLRP3 inflammasome. It consists of NLRP3, a cysteine protease recruitment domain(ASC),and a pro-caspase-1 precursor, can activate caspase-1 while being assembled. Then, the cytokines interleukin-1 and interleukin-18(pro-Il-1/18)are cleaved into mature forms by caspase-1 to perform their pro-inflammatory functions. pyroptosis refers to the programmed cell death of Caspase-1-dependent cells mediated by inflammasome. This article reviews the structure and function of NLRP3 inflammasome, its relationship with pyroptosis, and the research progress in ophthalmic diseases.

20.
Article in Chinese | WPRIM | ID: wpr-863489

ABSTRACT

Objective:To investigate the mechanisms of microRNA (miR)-103a-3p/chitinase-3-like protein 1 (CHI3L1) in the proliferation and vascular mimicry of ovarian cancer cells and its effect on transforming growth factor-β (TGF-β) pathway.Methods:The relationship between the expression level of miR-103a-3p and the overall survival rate of ovarian cancer patients was analyzed by bioinformatics. The human ovarian adenocarcinoma SKOV3 cells were divided into 4 groups: control group, miR-103a-3p mimic group, miR-103a-3p mimic+ CHI3L1 group and CHI3L1 group. Quantitative polymerase chain reaction (qPCR) and Western blotting were used to detect the expression levels of miR-103a-3p, CHI3L1 mRNA and CHI3L1 protein respectively. The expression level of YKL-40 in cell culture fluid was detected by enzyme-linked immunosorbent assay. The cell viability, proliferation ability and angiogenesis ability of the 4 groups were detected by CCK-8 method, clone formation experiment and angiogenesis experiment. The dual luciferase report verified that miR-130a-3p targeted CHI3L1.Results:The overall survival rate of ovarian cancer patients with high expression of miR-103a-3p was higher than that of patients with low expression of miR-103a-3p ( χ2=6.187, P=0.048). The differences in miR-103a-3p and CHI3L1 mRNA levels among the control group, miR-103a-3p mimic group, miR-103a-3p mimic+ CHI3L1 group and CHI3L1 group were statistically significant ( F=198.254, P<0.001; F=60.214, P<0.001), miR-103a-3p mimic group and miR-103a-3p mimic+ CHI3L1 group had higher miR-103a-3p levels than the control group (all P<0.001), CHI3L1 group had higher CHI3L1 mRNA level than the control group ( P<0.001). The expression levels of CHI3L1 protein in the 4 groups were 2.25±0.23, 1.19±0.12, 2.29±0.28 and 4.31±0.37, and the difference was statistically significant ( F=18.675, P<0.001). The expression levels of YKL-40 in the cell culture fluids of the 4 groups were (1.84±0.20) ng/ml, (0.95±0.08) ng/ml, (2.64±0.25) ng/ml, (6.27±0.79) ng/ml, and the difference was statistically significant ( F=35.297, P<0.001). The YKL-40 level of the CHI3L1 group was significantly higher than that of the control group ( P<0.001), the miR-103a-3p mimic group was lower than the control group ( P<0.001), and the miR-103a-3p mimic+ CHI3L1 group was higher than the miR-103a-3p mimic group ( P<0.001). The cell viabilities of the 4 groups were 100%±2.54%, 76.23%±2.13%, 104.89%±3.56% and 137.42%±2.80%, and the difference was statistically significant ( F=23.584, P<0.001). The cell viability of the miR-103a-3p mimic group was significantly lower than that of the control group ( P<0.001), the CHI3L1 group was higher than the control group ( P<0.001), and the miR-103a-3p mimic+ CHI3L1 group was higher than the miR-103a-3p mimic group ( P<0.001). The number of clones formed in the 4 groups were 76.85±4.67, 21.56±2.85, 72.06±5.07 and 169.63±9.21, and the difference was statistically significant ( F=31.541, P<0.001). The proliferation capacity of the miR-103a-3p mimic group was significantly lower than that of the control group ( P<0.001), the CHI3L1 group was higher than the control group ( P<0.001), and the miR-103a-3p mimic+ CHI3L1 group was significantly higher than the miR-103a-3p mimic group ( P<0.001). The differences in the relative tube lengths and the tube bramches of the 4 groups were both statistically significant ( F=24.254, P<0.001; F=27.564, P<0.001). The differences in TGF-β and Smad levels of the 4 groups were both statistically significant ( F=30.254, P<0.001; F=34.187, P<0.001). The results of dual luciferase experiments showed that compared with the NC group, the luciferase activity in cells co-transfected of miR-103a-3p and CHI3L1-wt was significantly reduced. The difference of luciferase activity between the cells transfected with NC and co-transfected with miR-103a-3p and CHI3L1-mut was not significant. Conclusion:MiR-103a-3p can directly inhibit the expression of CHI3L1 and inhibit the proliferation and angiogenesis of ovarian cancer SKOV3 cells to inhibit ovarian lymphatic metastasis and distant metastasis, which may be related to the TGF-β pathway.

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