1.Chinese Medical Master XUAN Guo-Wei's Experience in Treating Skin Diseases by Using Skin-Related Chinese Medicinals
Jia-Jue WANG ; Ling-Feng XIE ; Hong-Yi LI ; Xiu-Mei MO ; Da-Can CHEN ; Guo-Wei XUAN
Journal of Guangzhou University of Traditional Chinese Medicine 2024;41(10):2532-2537
In accordance with the theory of'treating the skin diseases with the skin',skin-related Chinese medicinals are usually used for the treatment of skin diseases,which reflects the thinking mode of holistic syndrome differentiation and classification according to the manifestations in traditional Chinese medicine.With ying-yang theory as the principle of differentiation and treatment of diseases and based on the core pathogenesis of'yin-yang imbalance causing the manifestations of the skin'for the skin diseases,Chinese medical master XU AN Guo-Wei has used skin-related Chinese medicinals in the treatment of skin diseases and has given full play to their unique advantage by following the theory of'treating the skin diseases with the skin'and'balanced regulation of yin and yang'.In the clinical practice,allergic skin diseases were usually treated with Cicadae Periostracum plus Dictamni Cortex for dispelling wind and relieving itching,hypopigmentation related skin diseases were usually treated with Sojae Semen Nigrum skin plus Dictamni Cortex for dispelling wind and tonifying kidney,autoimmune skin diseases were usually treated with Moutan Cortex plus Lycii Cortex for nourishing yin,clearing heat and activating blood,and skin diseases associated with abnormal sebum secretion were usually treated with Mori Cortex plus Lycii Cortex for purging lung and nourishing kidney.Skin-related Chinese medicinals have the actions of expelling wind and promoting eruption of papules,tonifying kidney and nourishing yin.The medication method of'treating the skin diseases with the skin'will provide reference for the treatment of skin diseases.
2.Evaluation of Microsphere-based xMAP Test for gyrA Mutation Identification in Mycobacterium Tuberculosis.
Xi Chao OU ; Bing ZHAO ; Ze Xuan SONG ; Shao Jun PEI ; Sheng Fen WANG ; Wen Cong HE ; Chun Fa LIU ; Dong Xin LIU ; Rui Da XING ; Hui XIA ; Yan Lin ZHAO
Biomedical and Environmental Sciences 2023;36(4):384-387
3.Functional Autapses Form in Striatal Parvalbumin Interneurons but not Medium Spiny Projection Neurons.
Xuan WANG ; Zhenfeng SHU ; Quansheng HE ; Xiaowen ZHANG ; Luozheng LI ; Xiaoxue ZHANG ; Liang LI ; Yujie XIAO ; Bo PENG ; Feifan GUO ; Da-Hui WANG ; Yousheng SHU
Neuroscience Bulletin 2023;39(4):576-588
Autapses selectively form in specific cell types in many brain regions. Previous studies have also found putative autapses in principal spiny projection neurons (SPNs) in the striatum. However, it remains unclear whether these neurons indeed form physiologically functional autapses. We applied whole-cell recording in striatal slices and identified autaptic cells by the occurrence of prolonged asynchronous release (AR) of neurotransmitters after bursts of high-frequency action potentials (APs). Surprisingly, we found no autaptic AR in SPNs, even in the presence of Sr2+. However, robust autaptic AR was recorded in parvalbumin (PV)-expressing neurons. The autaptic responses were mediated by GABAA receptors and their strength was dependent on AP frequency and number. Further computer simulations suggest that autapses regulate spiking activity in PV cells by providing self-inhibition and thus shape network oscillations. Together, our results indicate that PV neurons, but not SPNs, form functional autapses, which may play important roles in striatal functions.
Parvalbumins/metabolism*
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Corpus Striatum/metabolism*
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Interneurons/physiology*
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Neurons/metabolism*
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Neostriatum
4.Application of ROC and PR curves in the evaluation of clinical diagnostic testing.
Ying Xuan ZHU ; Yang LI ; Shu Tong WU ; Wei Da LIU ; Ruo Qi SONG ; Wei LI ; Yang WANG
Chinese Journal of Preventive Medicine 2022;56(9):1341-1347
This study reviewed the concepts and properties of the receiver operating characteristic (ROC) curve and precision recall (PR) curve, and made suggestions on the application of two curves based on the prevalence in combination with the results of simulation data. This study demonstrated that the ROC curve and PR curve had different properties, which could reflect the performance of diagnostic methods from various aspects. These two curves should be selected with a consideration of prevalence and clinical scenarios. When the prevalence was less than 20%, especially less than 5%, the PR curve could be adopted.
Diagnostic Techniques and Procedures
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Humans
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Prevalence
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ROC Curve
5.Nucleolar protein 6 promotes cell proliferation and acts as a potential novel prognostic marker for hepatocellular carcinoma.
Lei MENG ; Kai-Xuan XU ; Ming-Xi ZHAO ; Kang LI ; Kun ZHU ; Da-Wei YUAN ; Hao-Nan WANG ; Peng-Gao DAI ; Rong YAN
Chinese Medical Journal 2021;134(21):2611-2618
BACKGROUND:
Nucleolar protein 6 (NOL6) is a nucleolar RNA-associated protein that is highly conserved between species. It has been proved to be associated with the prognosis of liver cancer. However, the underlying mechanism has not been fully established. This study aimed to assess the relationship between NOL6 and liver cancer prognosis.
METHODS:
We constructed an NOL6-short hairpin RNA (shRNA)-expressing lentivirus. Through viral transfection, cell growth assay and fluorescence-activated cell sorting, we evaluated the effect of shRNA-mediated NOL6 knockdown on the proliferation, colony formation, and apoptosis of hepatocellular carcinoma (HCC) cells. The relationship between NOL6 expression and HCC patient survival has been established through bioinformatics analysis. We also explored the downstream molecular regulatory network of NOL6 in HCC by performing an Ingenuity Pathway Analysis in the database.
RESULTS:
Increased NOL6 expression was detected in HCC cells compared to normal controls; HCC patients with high NOL6 expression had poorer prognoses than those with low expression. NOL6 knockdown inhibited HCC cell proliferation, apoptosis, and colony formation. Also, MAPK8, CEBPA, and FOSL1 were selected as potential downstream genes of NOL6.
CONCLUSIONS
NOL6 up-regulates HCC cell proliferation and affects downstream expression of related genes. Moreover, NOL6 is considered to be associated with poor prognosis in HCC patients.
Apoptosis/genetics*
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Carcinoma, Hepatocellular/genetics*
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Cell Line, Tumor
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Cell Proliferation/genetics*
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Gene Expression Regulation, Neoplastic
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Humans
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Liver Neoplasms/genetics*
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Nuclear Proteins
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Prognosis
6.Effect of Gastrodia elata Planting on Soil Microbial Community Structure
Jiao XU ; Xuan HUANG ; Tao ZHOU ; Xiao-hong OU ; Yan-hong WANG ; Wei-ke JIANG ; Yuan YUAN ; Da-hui LIU ; Xiao WANG ; Guang-wen ZHANG
Chinese Journal of Experimental Traditional Medical Formulae 2020;26(19):10-16
Objective:To analyze the changes of soil microbial community structure before and after planting
7.Effects of High Temperature Stress on Growth Characteristics of Armillaria
Xuan HUANG ; Jiao XU ; Tao ZHOU ; Xiao-hong OU ; Qing-song YUAN ; Jin-qiang ZHANG ; Wei-ke JIANG ; Yuan YUAN ; Xiao WANG ; Da-hui LIU ; Guang-wen ZHANG
Chinese Journal of Experimental Traditional Medical Formulae 2020;26(19):17-22
Objective:To explore the effects of high temperature stress on the growth characteristics of different
8.Mycoplasma pneumoniae Macrolide Resistance and MLVA Typing in Children in Beijing, China, in 2016: Is It Relevant?
Wei Hai DOU ; Jun Xiu TIAN ; Li De XIN ; Ran WEI ; Wei ZHOU ; Hong WANG ; Guang Xuan QIN ; Yan Jun SHAO ; Ping Bao XU ; Xia Li GE ; Wei Da SHI
Biomedical and Environmental Sciences 2020;33(12):916-924
Objective The aim of this study is to investigate the macrolide resistance rate and molecular type withmultiple-locus variable-number tandem-repeat analysis (MLVA) of Mycoplasma pneumoniae of Beijing in 2016 in pediatric patients. Methods Real-time quantitative polymerase chain reaction (PCR) was used to identify M. pneumoniae, and MLVA was performed. The domain V of the 23S rRNA was sequenced to detect macrolide-resistant point mutations. We also investigated the activities of antibiotics against M. pneumoniae isolates in vitro. Results The PCR detection rate of M. pneumoniae in children in Beijing was 40%, and the macrolide resistance rate was 66%. The A2063G mutation in the 23S rRNA V region is the dominant mutation (137/146, 93.84%), whereas the A2064G mutation is rare (9/146, 6.16%). Seventy-three samples were typed successfully by MLVA typing, including 86.3% (63/73) were MLVA type 4-5-7-2, and 13.7% (10/73) were MLVA type 3-5-6-2. No other types were found. No strains were resistant to levofloxacin or tetracycline. Conclusion In 2016, a specific decrease in the macrolide resistance rate occurred in Beijing. The detection rate and macrolide resistance rate of outpatients are lower than those of inpatients. The A2063G mutants M. pneumoniae have high levels of resistance to erythromycin and azithromycin. The primary MLVA type is 4-5-7-2, followed by 3-5-6-2. No other MLVA types were detected. No strains resistant to tetracycline or levofloxacin were found in vitro.
9.Expression of Nrf2 in Different Cells after Human Cerebral Cortex Contusion.
Xiang Shen GUO ; Shu Heng WEN ; Wen Wen DONG ; Bing Xuan LI ; Zi Yuan CHEN ; Lin Lin WANG ; Da Wei GUAN ; Rui ZHAO
Journal of Forensic Medicine 2019;35(3):273-279
Objective To observe the expression changes of nuclear factor-erythroid derived 2-related factors (Nrf2) in different cells at different time points after human cerebral cortex contusion, and to discuss its application in brain wound age estimation. Methods Thirty-six human brain tissues were selected, of which 6 were for control and 30 were cortical contusion at different time points post-injury, which were divided into 0-1 h, 3-6 h, 1-3 d, 5-7 d, and 10-14 d post-injury groups, with 6 cases in each group. Based on paraffin embedded sections, HE staining was used to observe the morphological changes post-injury, and double immunofluorescence staining was used to detect the expression of Nrf2 in neurons, astrocytes, and microglia. The number of positive cells was counted and statistical analysis was made. Results The number of neurons decreased 1-3 d post-injury. The expression of Nrf2 cells in neurons increased after injury, and the rate of positive cells peaked at 1-3 d post-injury. Glial cells were activated 1-3 d post-injury, and the activation peaked at 5-7 d post-injury. The cerebromalacia began to form at 10-14 d post-injury. Glial fibrillary acidic protein (GFAP) positive cells in mice increased gradually after injury and peaked at 5-7 d post-injury, while the proportion of Nrf2 in GFAP positive cells was relatively stable. After injury, ionized calcium-binding adapter molecule 1 (IBA1) positive cells increased and activated gradually. The expression proportion of Nrf2 in IBA1 positive cells increased gradually, reached its peak at 5-7 d post-injury, and then decreased. Conclusion The expression of Nrf2 in different cells involves in the biological function of different cells post-injury, and the dynamic expression of single cells has a time-dependent pattern. This may provide a new reference index for the wound age estimation of brain contusion in human.
Animals
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Brain Contusion
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Cerebral Cortex
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Glial Fibrillary Acidic Protein
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Humans
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Mice
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NF-E2-Related Factor 2
10.Effects of ursolic acid on activation of NOX2/ROS/NLRP3 inflammasome in liver fibrosis rats
Chen-Kai HUANG ; Da-Kai GAN ; Wang ZHANG ; Fang-Yun LUO ; Jiang CHEN ; An-Jiang WANG ; Bi-Min LI ; Xuan ZHU
Basic & Clinical Medicine 2018;38(4):485-491
Objective To investigate the effect of ursolic acid(UA) on NOX2/ROS/NLRP3 inflammasome activation in carbon tetrachloride(CCl4)-induced liver fibrosis SD rat,and to observe the improvement of collagen deposition in liver tissues. Methods All rats were randomly divided into 3 group:control group,CCl4model group,UA treatment group. Liver fibrosis model SD rats was established by the CCl4-induced method and half of them was used as UA treatment group. Serum ALT was detected by ALT detection kit.The liver pathology and collagen deposition were ob-served by HE and Sirius-red staining. The mRNA expression of Nox2,Nlrp3,Caspase1,IL-1β in liver tissues was detected by RT-qPCR. The protein expression of NOX2,NLRP3,caspase-1 and IL-1β in liver tissues was detected by Western blot and immunohistochemistry and the ROS generation in liver tissues was detected by DCFH-DA fluores-cence probe. Results Compared with control group,in the CCl4model group,the serum ALT was much higher (P<0.05);the Ishak's fibrosis score and collagen deposition was significantly increased(P<0.05) and mRNA of Nox2, Nlrp3,Caspase1,IL-1β was increased.In addition,both the NOX2,NLRP3,caspase-1 p10 and IL-1β protein expres-sion and ROS level (P<0.05) of CCl4model group were significant increased.Compared with CCl4model group,in the UA treatment group Ishak's fibrosis score,collagen deposition and ALT decreased.Both mRNA expression of the Nox2, Nlrp3,Caspase1,IL-1β and protein expression of NOX2,NLRP3,caspase-1 p10 and IL-1β as well as ROS were signif-icant decreased,but the caspase-1 p45 protein level has no difference among all these groups (P>0.05). Conclusions Ursolic acid attenuates the liver injury and reduces the collagen deposition,which may relate to its inhibitory effects on NOX2/ROS/NLRP3 inflammasome activation to reduce IL-1β releasing.

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