BACKGROUND:Both correspondence analysis and two-step cluster analysis are high-grade statistical analysis, the introduction of these analyses into the research on traditional Chinese medicine (TCM) syndrome type of knee osteoarthritis wil provide objective evidence for the standardization and normalization of TCM syndrome type, through the combination of mathematical statistical principle and TCM syndrome type.
OBJECTIVE:To explore distribution characteristics of knee osteoarthritis TCM syndrome type using correspondence analysis and two-step cluster analysis.
METHODS:The clinical symptoms of 200 patients with knees osteoarthritis were investigated through a knee osteoarthritis symptoms questionnaire. According to the criteria for three kinds of syndrome type issued in Diagnostic Criteria for TCM Syndrome, the characteristics of each syndrome were analyzed using two-step cluster analysis and corresponding analysis. Then knee osteoarthritis TCM syndrome type characteristics were defined.
RESULTS AND CONCLUSION:Cluster analysis is ineffective for the syndrome type, which is not present in the Diagnostic Criteria for TCM Syndrome. Corresponding analysis showed that, in addition to kidney marrow deficiency syndrome (50.5%), yang deficiency and congealing syndrome (13.5%), and blood stasis syndrome (23%), concurrent syndromes were also found, including kidney marrow deficiency combined yang deficiency and congealing syndrome (6.5%), yang deficiency and congealing combined blood stasis syndrome (3%), kidney marrow deficiency combined blood stasis syndrome (3.5%). Therefore we performed corresponding analysis. After analyzing the syndromes at 0.5, 1.0, 1.1, 1.2, 1.3, 1.4, 1.5 radius, the most reasonable syndrome was those at 1.1 radius by corresponding analysis. Corresponding analysis is a scientific method for the classification of knee osteoarthritis syndrome.

Objective:To explore the regulatory effects of proliferation and apoptosis on THC-8307 by MMS2 siRNA and P53 siRNA.Methods:We experimentally suppressed the MMS2 and P53 expression in human colon cancer cells by the interference RNA technology ( RNAi) as monitored by Real-time qRT-PCR and Western blot.THC-8307 cells that express rate significantly reduced were collected as case group , while using untreated cells as the blank control group , and mock-treated cells as the negative control group.After separately interfering the target genes in each group ,test the relationship and expression level of the two genes.Utilizing flow cytometry techniques to test cells proliferation and apoptosis rate of each group.Results: Compared to the control group , colon cancer cells in which MMS2 and P53 were silenced displayed significant increase of P53,MMS2 mRNA and protein levels(P<0.05).MMS2-depleted cells displayed increase in apoptosis rates ,for both early and later stages ( P<0.05 ).Conclusion: MMS2 and P53 negatively regulate each other in colon cancer cells proliferation and apoptosis .

Objective To evaluate the correlation between left ventricular function and arterial stiffness of left femoral artery in patients with lower extremity atherosclerotic disease (LEAD).Methods Thirty-three patients with LEAD and 37 healthy subjects (control group) were enrolled in this study.The intima-media thickness (IMT),diameter and parameters of arterial stiffness [dispensability coefficient (DC),compliance coefficient (CC),stiffness α,stiffness β,pulse wave velocity (PWVβ) ]were measured by ultrasonography with the technology of QIMT and QAS.The thickness of the interventricular septum (IVSd),end-diastolic left ventricular diameter (LVDd) and left ventricular mass (LVM),and parameters of the left ventriculsr function (EF,E/A,E'/A',E/E' and Tei index) were measured by echocardiography.These parameters were compared between two groups.Correlations between the parameters of the arterial stiffness and those of the cardiac function were evaluated by Pearson correlative analysis.Results ①The IVSd,LVM and E/E' ratio were significantly higher in LEAD group than those in control group ( P ＜0.05).There were no significant differences in EF,E/A,E'/A',and Tei index between two groups ( P ＞0.05).②The IMT,α,β,PWVβ of left femoral artery were significantly higher in LEAD group than those in control group,while DC and CC were significantly lower in LEAD group than those in control group ( P ＜0.05).③The E/E' ratio,one of the parameters representing the left ventricular diastolic function,was correlated negatively with CC and positively with α,β,and PWVβ ( P ＜0.05 or P ＜0.01 ).The E'/A' ratio was correlated positively with DC and CC,and negatively with α,β,and PWVβ ( P ＜0.05 or P ＜0.01 ).Both EF and Tei index were not significantly correlated with the above parameters of arterial stiffness ( P ＞0.05).Conclusions Patients with LEAD have thickened femoral IMT,higher arterial stiffness of left femoral artery,as well as impaired left ventricular function.There is a close correlation between the atherosclerosis of the femoral artery and the early left vcntricular dysfunction.

Objective To evaluate the association between the left carotid arterial stiffness and left ventricular diastolic function in patients with lower extremity atherosclerosis (AS).Methods ①A total of 32 patients with AS and 34 control objects were enrolled.The carotid arterial stiffness parameters:compliance coefficient (CC),distensibility coefficient (DC),stiffness parameter (α,β),pulse wave velocity β (PWVβ) were measured by using quality arterial stiffness(QAS) technology.And the values were compared between the two groups.②The parameters of left ventricular (LV) structure and function:LV end-diastolic interventricular septal thickness (IVSd),LV end-diastolic diameter (LVDd),LV end-diastolic wall thickness (PWd),LV ejection fraction (EF),systolic velocity (s'),early-diastolic velocity (e'),Tei index and E/e' ratio were measured by using two-dimensional echocardiography and tissue Doppler.These parameters were compared between the two groups.The association between the carotid arterial stiffness parameters and LV function parameters were analyzed by correlative analysis.Results ①Compared with the control group,the DC and CC were lower,and α,β,PWVβ,IMT were higer than the control group,with statistically significant differences(P ＜0.05).②The IVSd,Tei index and E/e'was significantly higher in the AS group than those in the control group.And the PWd,s',e' were lower than those in the control group (P ＜ 0.05).There was no significant difference in EF between the two groups (P ＞0.05).③The e' was correlated positively with DC and CC (r =0.39,0.36,P ＜0.01),and negatively with α,β,and PWVβ (r =-0.42,-0.42,-0.49,P ＜0.01).Tei index was correlated negatively with DC and CC (r =-0.50,-0.52,P ＜0.01),and positively with α,β,and PWVβ (r =0.58,0.58,0.62,P ＜0.01).The E/e' was correlated regatively with CC (r =-0.27,P ＜0.05),and positively with PWVβ (r =0.28,P ＜0.05).There were no significant correlation between s',EF and the stiffness parameters of carotid artery (P＞0.05).Conclusions In patients with AS,the left carotid artery stiffness increases and left ventricular systolic and diastolic function are impaired.The carotid artery stiffness and left ventricular diastolic function is correlated.Changes in carotid artery stiffness reflect the change in left ventricular diastolic function.

Objective It is well known that diethylstilbestrol ( DES ) can result in testicular oxidative injury , and one of its mechanisms of action is leading to dysfunction of steroidogenesis .The aim of this study was to investigate the relationship between testicular oxidative injury caused by DES and the key synthetase activities for the synthesis pathway of steroidogenesis and the possible mechanism .Methods Twenty-four 4-wk-old male Wistar albino rats were randomly divided into 4 groups , 6 rats each.Three doses of DES (0.1, 1.0 and 10 μg/kg· d) groups and a vehicle (corn oil) control group , were respectively administered by subcutaneous injection once a day for eight weeks .The rats were sacrificed after 8 weeks treatment and the body weight , testis, epididymis, prostate were weighed, respectively.The testicular tissues were homogenized and the oxidation of MDA and ROS , the activity changes of antioxidases SOD, CAT and GPx, as well asthe activities of steroid synthetases 3β-HSD1 and 17β-HSD3 were determined by biochemical measurement.The levels oftestosterone and LH in peripheral blood were measured by radioimmunoassay .The intensities of expression of StAR,P450scc, 3β-HSD1, 17β-HSD3-mRNA were detected by PCR.Results In the 10.0 μg/kg dose group, the weights andorgan coefficients of testis and prostate were decreased significantly , the oxidation of MDA and ROS was increased distinctlyand the activities of SOD, CAT, GPx, 3β-HSD1 and 17β-HSD3 were reduced.The concentration of serum testosterone wasdecreased in the 10.0 μg/kg dose group.In the 10.0 μg/kg and 1.0 μg/kg dose groups, the decline of LH levelpresented a dose-dependent manner, and the intensities of immunochemical positive staining for StAR , P450scc, 3β-HSD1and 17β-HSD3 mRNA were decreased.Conclusions DES exposure results in disturbance of the oxidant /antioxidantbalance and decline of testosterone level that induces reproductive impairment in male rats .DES induces reductions of bothGPx and 3β-HSD activities which cause the decrease of testosterone synthesis .The expression of P450scc and 3β-HSDmRNA,which are the key synthetases in biosynthetic pathway of steroidogenesis , are inhibited by DES, and it isspeculated that the disturbance of steroidogenic synthesis enzymes may be one of the mechanisms of toxic effects of DES .

Objective To investigate the expression of NMDAR1 in the hippocampus and cerebral cortex of old rats after 30-min -inhalation of 2% isoflurane, and to investigate the effects of isoflurane on the learning and memory functions of old rats and the underlying mechanism. Methods The healthy old male Sprague Dawley rats (n = 36) were randomly divided into the control group, the oxygen group, the 2-hour post-recovery group, the 1-day post-recovery group, the 3-day post-recovery group, and the 7-day post-recovery group. The morris water maze was used to detect the ethological effect of 30-min inhalation of isoflurane , and the immunohistochemistry assay was used to detect the expression of NMDAR1 in the hippocampus (CA1, CA3) and the cerebral cortex. Results The 30-min inhalation of 2% isoflurane inhibited the learning and memory abilities of old rats at 2 h post-recovery. On 1 d post-recovery, the inhibition of learning and memory began to reduce, then on 3 d and 7 d post-recovery, the learning and memory abilities continously recovered. The expression of NMDAR1 in the rat hippocampus and cerebral cortex decreased at 2 h post-recovery, and reversed on 1 d post-recovery and reached the normal level on 3 d and 7 d post-recovery. Conclusion 30-min inhalation of 2%isoflurane had an inhibitory effect on the learning and memory abilities of old rats, and the attenuation of NMDAR1 in the hippocampus and cerebral cortex may involve in this process.

Objective: To observe the antiasthmaf ic, anti-inflammatory and immunological effects of Gubenchuansoukang Granule. Methods: The rats asthma model was established by ovalbumin sensitization. The model was identified by the study of the asthma incubation period and the total white cells counts in bronchoalveolar lavage fluid (BALF). The anti-inflammatory effect was observed by the acute inflammation and chronic inflammation induced xylene and agar. To observe the effect of Gubenchuansoukang Granule on humoral immunity and cellular immunity induced by chicken red blood cell and 2, 4-dinitrochlorobenzene. Results: Gubenchuansoukang Granule could lengthen the asthma incubation period, reduce the quantity of total white cells in BALF, against the acute inflammation and chronic inflammation, and restrain the humoral immunity and cellular immunity. Conclusion: Gubenchuansoukang Granule had antiasthmafic, anti-inflammatory and immunosuppression effects.

Objective:To analyze the echocardiographic features of operation-related aorto-cardiac fistula(ACF) after surgery or transcatheter procedure, to explore the value of echocardiography on diagnosis of operation-related ACF, and summarize the key points of its diagnosis.Methods:Eight patients with operation-related ACF who were admitted to Fuwai Hospital were collected from July 2002 to December 2020. Echocardiographic features of the 8 patients with operation-related ACF were reviewed and analyzed. The diagnosis methodology was summarized.Results:Of the 8 patients with operation-related ACF, 3 had aortic right atrial fistula and 5 had aortic right ventricular fistula. The fistula was single, which can be located but not limited to the aortic sinus. The median size of the fistula was 4 mm (range: 3-5 mm). There was no aneurysmal dilation of the aortic sinus where the fistula was located. The fractured end of the fistula did not thin, and the fistula had a regular shape. Six of the 8 patients undertook cardiac catheterization and occlusion. One patient received surgical repairment. One patient was treated conservatively.Conclusions:Echocardiography can help diagnose operation-related ACF and provide valuable information for further clinical diagnosis and treatment. Sonographers should avoid missed diagnosis and pay attention to distinguishing from other causes of aortic-cardiac shunt disease.

Bipolar disorder （BD） is a complex mental illness characterized by mood fluctuations， excitability and impaired functioning. Anxiety in BD patients frequently leads to increased clinical symptoms， worse social functioning， and a higher risk of suicide. Current research on BD with anxiety symptom primarily examined clinical characteristics， prevalence and treatment， with limited focus and inconsistent findings on its neuro-biogenetic mechanisms. The findings in this area were also inconsistent. Magnetic resonance imaging （MRI）， known for its non-invasive nature and high resolution， is extensively utilized in investigating disease mechanisms. Consequently， this paper gave a comprehensive review on the progress in brain imaging on BD patients with anxiety symptom， seeking to discern stable changes in brain structure and function， thereby enrich our understanding of the neurobiological etiology of this condition and offer valuable insights for clinical diagnosis and treatment strategies making. This paper covered 14 original studies and synthesized their findings on brain structure and function. Conclusively， the changes of brain functional activities in BD patients with anxiety symptom mainly involve the prefrontal lobe， posterior cingulate cortex， temporal lobe and angular gyrus， while the changes of brain structure mainly involve the left hippocampus and middle frontal gyrus， but the consistency of the research results needs to be enhanced. The research in this field is not sufficient, and more homogeneous clinical samples and larger longitudinal studies are needed to verify and supplement the above results. ［Funded by National Natural Science Foundation of China （number， 82071524）］

OBJECTIVE：To investigate the correlation between the morphological characteristics and chemical constituents of garden ginseng （GG），mountain transplanted ginseng （MTG）and mountain-grown ginseng （MGG），so as to provide evidence for elucidating the scientific connotation of “evaluating quality from morphological characteristics ”. METHODS ：A total of 30 batches of GG ，MTG and MGG were collected. The contents of 11 saponins（ginsenoside Rg 1，Re，Rg2，F1，Rb1，Rb2，Rb3，Rc，Rd，Ro， Rf）were determined by UPLC. The determination was performed on Acquity UPLC ® BEH C 18 column with mobile phase consisted of 0.1％ Formic acid solution- 0.1％ Acetonitrile formate solution （gradient elution ）at the flow rate of 0.5 mL/min. The column temperature was set at 35 ℃. The detection wavelength was set at 203 nm，and sample size was 5 μL. The content of starch was determined by colorimetry ，and the absorbance value was measured at 559 nm with 0.5％ iodine-potassium iodide as the color reagent. SPSS 23.0 statistical software was used to perform Pearson relationship analysis for appearance characteristic indexes （number of stem scars ，rhizome length ，texture）with the contents of 11 kinds of saponins ，the content of total saponins ，the content ratio of panaxatriol saponin （PPT）/panaxadiol saponin （PPD），the content of starch. RESULTS ：The linear relationship between UPLC and colorimetry was good （r＞0.999）. RSDs of precision ，reproducibility and stability tests were all lower than 5％ . Average recoveries were 95.17％ -105.20％（RSD＜5％ ，n＝6）. Except for ginsenoside Rf ，the contents of other 10 ginsenosides were positively correlated with the number of stem scars ，so were the contents of 11 gensenosides with the rhizome length（r＞0，P＜0.05），and they were negatively correlated with the firmness of the texture （r＜0，P＜0.05）. The content of starch in P. ginseng was positively correlated with texture firmness （r＝0.95，P＜0.01）. The ratio of PPT/PPD in P. ginseng was negatively associated with the number of stem scars and the rhizome length （r＜0，P＜0.05）. CONCLUSIONS ：The number of stem scars ，the rhizome length and texture porosity of P. ginseng are positively associated with the contents of medicinal material ginsenoside；the increase of PPD content in P. ginseng was higher than that of PPT with the increase of growth years. The traditional“evaluating quality from morphological characteristics ”for P. ginseng has a certain scientific connotation ，which is more stem scars ，longer rhizome and loose texture.