Objective To evaluate surgical therapies in patients with popliteal aneurysms (PA).Method The clinical data of 25 PA patients admitted from January 1988 to January 2012 were retrospectively analyzed.There were 21 men and 4 women,the mean age was (56 ± 16)years.There were 27 PA in these 25 patients,with bilateral PA in 2 cases.The main symptoms were pulsatile mass in the popliteal fossa,limb pain,acute or chronic distal limb ischemia and limb edema.Result In this series 23out of 25 PA cases recieved operations,17 of them were treated with aneurysmectomy and saphenous vein interposition or bypass grafting,4 of them were treated with aneurysmectomy and prosthetic grafts interposition,1 was treated with aneurism ligation and 1 underwent end-to-end anastomosis after aneurysm resection.There was no perioperative mortality.One patient recieved amputation for distal anastomotic thrombosis and severe limb ischemia.The mean follow-up time is (6.5 ± 0.5) years.After 4 years,a right subclavian artery aneurysm was found in a bilateral PA case and treated surgically.Conclusions Early elective surgical treatment is recommended for patients with PA because PA may go rupture or induce dital limb ischemia and these patients may have good outcome after surgical treatment.Long-term follow-up is warranted to detect the new aneurysm formation.

Objective To analyze the correlation of traditional Chinese medical constitution types withcardiovascular risk factors in community hypertension patients. Methods We defined the constitution types of 1108 community hypertension patients, created personal health archives and provided routine examination for the subjects. After that, we input and analyzed the relevant data and results by computer. Results In 1108 cases of hypertension patients, 229 (20.67%) were defined as harmony physique, 879 (79.33%) as biased physique. In patients with biased physique, phlegm-dampness physique accounted for 25.54% (283 cases) , and then came yin deficiency physique and Qi deficiency physique, which accounted for 15.16% (168 cases) and 13.18% (146 cases) , respectively. The biased physique was dominated by single biased physique with a total of 590 cases ( 67.12%) , but the complex physique was also in large quantity, with a total of 289 cases ( 32.88%) . The complex physique consisting of two kinds of single physique was commonly seen in the patients with complex physique, accounting for 15.70%. The complex physique consisting of more kinds of single physique had less percentage. Phlegm-dampness physique was a kind of physique involving the most cardiovascular risk factors. Patients with phlegm-dampness physique had higher incidence of overweight, abnormal lipid level, family history of cardiovascular disease, lack of physical exercise and electrocardiographic abnormality, and the difference was statistically significant compared with other physique types ( P<0.05 or P<0.01) . Conclusion Phlegm-dampness, yin deficiency and Qi deficiency physique are the three commonly-seen constitution types in hypertension patients. Phlegm-dampness physique is the most commonly-seen biased physique and is also a kind of physique involving the most cardiovascular risk factors. Prevention and management in consideration with the constitution characteristics and cardiovascular risk factors will be a new prospective method for the treatment of hypertension patients in community.

Objective:To investigate the expression of miR-495 and its effect on MHCC-97H hepatocellular carcinoma cells.Methods:Fifty-six hepatocellular carcinoma tissue specimens (HCC group) and 40 normal liver tissue specimens (control group) preserved in our hospital from January 2017 to January 2018 were selected. Reverse transcription real-time fluorescent quantitative PCR (qRT-PCR) was used for miR-495 expression detection. MHCC-97H HCC cells were randomly selected and then divide into control group, blank plasmid group and transfection group. The blank plasmid group was transfected with blank plasmid, and the transfection group was transfected with miR-495 inhibitor. The expression of miR-495 in each group of cells were detected using qRT-PCR. CCK method was used to detect each group proliferation activity. Transwell cell migration assay was used to detect each group migration ability. Analysis of variance was used for comparison between multiple groups. Furthermore, LDS-t test was used for pairwise comparison, and t -test was used for comparison between the two groups.Results:The relative expression levels of miR-495 in the HCC group was (2.043 ± 0.382), which was higher than the control group, and the difference between the two groups was statistically significant ( P < 0.05). The relative expressions levels of miR-495 in patients with stage III to IV and lymph node metastasis were 2.265 ± 0.284 and 2.290 ± 0.355, which were significantly higher than those of stage I to II and no lymph node metastasis ( P < 0.05). The relative expression levels of miR-495 in transfection group was 0.653 ± 0.102, which were significantly lower than control group and blank plasmid group ( P < 0.05). The A values of MHCC-97H cells cultured for 24 h and 48 h in transfection group were 0.404 ± 0.106 and 0.604 ± 0.136, which were significantly lower than control group and blank plasmid group ( P < 0.05). MHCC-97H cells migration number in the transfection group was (6.10 0 ± 20), which was significantly lower than that of control group and blank plasmid group ( P < 0.05). Conclusion:miR-495 high expression has certain relationship with clinicopathological characteristics of HCC tissues. In addition, miR-495 has a certain effect on the proliferation and migration ability of MHCC-97H HCC cells.

Objective To compare the effects and explore mechanism of acupoints on various meridians or nerve segments in treating different symptoms in one disease.Methods Neonatal Wistar rats were randomly divided into 4 groups: normal control group, model group, ST36 group, and LI14 group (n=10-12 in each group).IBS model was established by administering acetic acid enema combining colorectal distension (CRD) test to rats in all groups except the normal control group.These rats were all isolated from their mothers.2-month old rats in the ST36 group and LI14 group received electro-acupuncture five times, once every two days for 20 minutes.Stool consistency was evaluated according to the Bristol Stool Form Scale (BSFS), and visceral sensitivity was observed based on abdominal withdraw reflection (AWR).Levels of TRPV1 and 5-HT2AR in rat colon tissues were measured with immunohistochemical method.Results Before electro-acupuncture stimulation, BSFS score of rats in all groups increased significantly (P<0.01) compared with the normal control group;after electro-acupuncture, BSFS score of the model group (P<0.01) and LI14 group (P<0.05) were increased;threshold value of intestinal pressure of model group and ST36 group decreased (P<0.01), and the contraction waves increased significantly (P<0.01).Positive TRPV1 expression increased (P<0.01);and TRPV1 expression in LI14 group increased (P<0.05).The level of 5-HT2AR in the model group and LI14 group were raised markedly (P<0.01).Compared with the model group, BSFS score of the EA groups decreased significantly (P<0.01);threshold value of intestinal pressure increased (P<0.01);contraction wave decreased significantly (P<0.01), and the expression of TRPV1 and 5-HT2AR reduced significantly (P<0.01).Compared with the ST36 group, BSFS score of the LI14 group increased significantly (P<0.05);expression of TRPV1 reduced (P<0.01), and the level of 5-HT2AR increased significantly (P<0.01).Conclusion Stimulating LI4 and ST36 with electro-acupuncture could reduce the visceral sensitivity and the gastrointestinal motility disorder in IBS model rat.LI4 has a better effect of treating gastrointestinal motility disorder, and ST36 has a better effect of relieving visceral pain.This study illustrates the existence of therapeutic specificity of acupoints, which means acupoints on different meridians or ganglions can be used to treat the same disease yet with different effects.

Hypervirulent Klebsiella pneumoniae, short for hvKP, is a hypervirulent variant of classical Klebsiella pneumoniae, which accounts for serious infection in healthy people, exhibits strong pathogenicity, high mortality and poor prognosis. At present, hvkp is of high prevalence all over the world, and the infection rate shows a continuous upward trend, which brings great challenges to public health security and clinical treatment. This paper summarized the research progress on virulence factors of hvkp, such as capsular polysaccharides, siderophore, lipopolysaccharide, adhesins and recently discovered Type Ⅵ secreting system, and aimed to deepen the understanding and recognition of hvKP.

Objective:To investigate the protective effect of quercetin against LasB-induced apoptosis, inflammation, and oxidative stress in THP-1 macrophages, providing valuable insights into the use of quercetin as a virulence inhibitor for Pseudomonas aeruginosa infection treatment. Methods:This was an experimental study. The experimental strain was the standard strain. The LasB protein was obtained utilizing protein recombination technology, while the enzyme activity of LasB was assessed through both the Elastin Congo red assay and fluorescently labelled elastin assay. The LasB-induced THP-1 macrophage infection model was established, and quercetin was utilized for intervention. Cell viability was evaluated via CCK-8 assay, while cell morphology was observed under an inverted microscope. Apoptosis detection involved employing both TUNEL and Annexin V/PI staining. The mRNA expression and protein levels of inflammatory cytokines and COX-2 were determined by RT-qPCR and ELISA respectively. Intracellular ROS levels were quantified using the DCFH-DA fluorescent probe. One-way ANOVA was used for statistical analysis, and Tukey test was used for multiple comparisons. Results:The pLasB with a molecular weight of 33 000 and acceptable enzymatic activity (purity>90%), was successfully obtained. THP-1 macrophages treated with pLasB at a concentration of 100 μg/ml presented significantly decreased viability and integrity rate when compared with the normal control group. Additionally, pLasB promoted apoptosis, up-regulated the levels of inflammatory cytokines IL-1α, IL-1β, IL-6, IL-10, IL-12, and TNF-α, increased intracellular ROS fluorescence intensity, and elevated COX-2 mRNA expression level. Furthermore, the viability of THP-1 macrophages was significantly enhanced under quercetin intervention at concentrations of 2.5 μmol/L, 5 μmol/L and 10 μmol/L. The apoptosis rate exhibited a significant reduction from 18.32%±0.17% to 13.17%±0.20%, 11.43%±0.06% and 7.74%±0.04%, respectively ( F=1 679, P<0.05). There was a notable down-regulation of pro-inflammatory cytokines IL-1α, IL-1β, IL-6, IL-12 and TNF-α while the anti-inflammatory cytokine IL-10 showed a significant up-regulation. Both intracellular ROS fluorescence intensity ( F=86.92, P<0.05) and COX-2 level ( F=24.62, P<0.05) demonstrated a substantial decrease. Conclusion:Quercetin demonstrates significant efficacy in inhibiting LasB-induced apoptosis, inflammation, and oxidative stress in THP-1 macrophages, which highlights immense potential as a potent virulence inhibitor of Pseudomonas aeruginosa.

Hypervirulent Klebsiella pneumoniae, short for hvKP, is a hypervirulent variant of classical Klebsiella pneumoniae, which accounts for serious infection in healthy people, exhibits strong pathogenicity, high mortality and poor prognosis. At present, hvkp is of high prevalence all over the world, and the infection rate shows a continuous upward trend, which brings great challenges to public health security and clinical treatment. This paper summarized the research progress on virulence factors of hvkp, such as capsular polysaccharides, siderophore, lipopolysaccharide, adhesins and recently discovered Type Ⅵ secreting system, and aimed to deepen the understanding and recognition of hvKP.

Objective:To investigate the protective effect of quercetin against LasB-induced apoptosis, inflammation, and oxidative stress in THP-1 macrophages, providing valuable insights into the use of quercetin as a virulence inhibitor for Pseudomonas aeruginosa infection treatment. Methods:This was an experimental study. The experimental strain was the standard strain. The LasB protein was obtained utilizing protein recombination technology, while the enzyme activity of LasB was assessed through both the Elastin Congo red assay and fluorescently labelled elastin assay. The LasB-induced THP-1 macrophage infection model was established, and quercetin was utilized for intervention. Cell viability was evaluated via CCK-8 assay, while cell morphology was observed under an inverted microscope. Apoptosis detection involved employing both TUNEL and Annexin V/PI staining. The mRNA expression and protein levels of inflammatory cytokines and COX-2 were determined by RT-qPCR and ELISA respectively. Intracellular ROS levels were quantified using the DCFH-DA fluorescent probe. One-way ANOVA was used for statistical analysis, and Tukey test was used for multiple comparisons. Results:The pLasB with a molecular weight of 33 000 and acceptable enzymatic activity (purity>90%), was successfully obtained. THP-1 macrophages treated with pLasB at a concentration of 100 μg/ml presented significantly decreased viability and integrity rate when compared with the normal control group. Additionally, pLasB promoted apoptosis, up-regulated the levels of inflammatory cytokines IL-1α, IL-1β, IL-6, IL-10, IL-12, and TNF-α, increased intracellular ROS fluorescence intensity, and elevated COX-2 mRNA expression level. Furthermore, the viability of THP-1 macrophages was significantly enhanced under quercetin intervention at concentrations of 2.5 μmol/L, 5 μmol/L and 10 μmol/L. The apoptosis rate exhibited a significant reduction from 18.32%±0.17% to 13.17%±0.20%, 11.43%±0.06% and 7.74%±0.04%, respectively ( F=1 679, P<0.05). There was a notable down-regulation of pro-inflammatory cytokines IL-1α, IL-1β, IL-6, IL-12 and TNF-α while the anti-inflammatory cytokine IL-10 showed a significant up-regulation. Both intracellular ROS fluorescence intensity ( F=86.92, P<0.05) and COX-2 level ( F=24.62, P<0.05) demonstrated a substantial decrease. Conclusion:Quercetin demonstrates significant efficacy in inhibiting LasB-induced apoptosis, inflammation, and oxidative stress in THP-1 macrophages, which highlights immense potential as a potent virulence inhibitor of Pseudomonas aeruginosa.

Objective:To investigate the clinical significance and the diagnostic value of detecting kidney injury biomarkers in urine and serum of children with Henoch-Sch?nlein purpura nephritis (HSPN).Methods:A total of 216 children with untreated HSPN, who were admitted in Beijing Children′s Hospital of Capital Medical University from January 2018 to December 2019, were recruited in this retrospective study. Two hundred and sixteen healthy children were selected as the healthy control group. We determined the levels of six biomarkers of kidney injury, including transferrin (TRF), immunoglobulin (IgG), microalbumin (mAlb), alpha-1 microglobulin (α1-MG), N-acetyl-β-D-glucosaminidase (NAG) in urine and cystatin C (CysC) in serum. The data from the two groups were analyzed, the diagnostic value of each biomarker was evaluated and a logistic regression model for the diagnosis of HSPN was established. In addition, 60 children with HSPN, who were admitted to our hospital from November 2021 to February 2022 and 60 healthy children, who underwent healthy check up in the same period were included to validate the diagnostic performance of the established logistic model. Receiver operating characteristic (ROC) curve was used to analyze the diagnostic value of each biomarker.Results:The urine levels of TRF, IgG, mAlb, α1-MG and NAG and the serum level of CysC were significantly higher in the HSPN group than those in healthy control group (all P<0.05). The area under the ROC curve (AUC) of TRF, IgG, mAlb, α1-MG, NAG and the serum levels of CysC was 0.749, 0.719, 0.810, 0.648, 0.828 and 0.790 (all P<0.05). Logistics regression analysis showed that IgG, mAlb and TRF were the three diagnostic determinants of HSPN ( OR=1.083, 1.105, 1.704,all P<0.001), and the AUC was 0.916 of the established logistic model based on these three biomarkers. The sensitivity was 87.4% and the specificity reached 96.2%. The logistic model was validated by independent cohorts, and the AUC was 0.973, the sensitivity was 95.0% and the specificity was 98.3%. Conclusions:The levels of urine TRF, IgG, mAlb, α1-MG, NAG and serum CysC were higher in children with HSPN. The established logistic regression model based on three biomarkers including IgG, mAlb and TRF in this study has satisfactory clinical value in diagnosing HSPN in children.

The researches on the acupoint effect specificity were summarized to explore whether the integrality of the acupoint effect specificity existed and analyze the connection between the relativity and integrality of the acupoint effect specificity. The literature on the clinical and experimental researches relevant with the acupoint effect specificity was retrieved through CNKI from January 2007 to October 2017. A total of 39 papers met the retrieving criteria. Separately, in terms of the holism of TCM theory, the holism of meridian theory and modern research, the integrality of acupoint effect specificity was analyzed. The relativity and the integrality are indicated in the acupoint effect specificity. The integrality of acupoint effect specificity is closely related to the holism of TCM theory as well as the meridians. Just because of its integrality, the acupoint effect specificity is relative, rather than absolute.