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1.
Chinese Journal of Experimental Traditional Medical Formulae ; (24): 1-9, 2024.
Article in Chinese | WPRIM | ID: wpr-1003760

ABSTRACT

ObjectiveTo investigate the effects of Linggui Zhugantang on mitochondrial fission and fusion and silencing information regulator 3(Sirt3)/adenosine monophosphate dependent protein kinase (AMPK) signaling pathway in chronic heart failure (CHF) rats after myocardial infarction (MI). MethodSD rats randomly divide into sham operation group (normal saline ,thread only without ligature), model group (normal saline, ligation of the left anterior descending coronary artery proximal to the heart), Linggui Zhugantang group (4.8 g·kg-1) and Captopril group (0.002 57 g·kg-1), with 10 rats in each group. Administere drug continuously for 28 days. Echocardiography detected cardiac function parameters. Hematoxylin eosin (HE) staining observed the pathological changes of the heart. Immunofluorescence detected the levels of reactive oxygen species (ROS). JC-1 detect mitochondrial membrane potential. Colorimetry measure adenosine triphosphate (ATP), superoxide dismutase (SOD), malondialdehyde (MDA), mitochondrial respiratory chain complex activity (Ⅰ-Ⅳ). TdT-mediated dUTP nick end labeling (TUNEL) staining detected the apoptosis rate of myocardial tissue. Western blot detected protein expression levels of Sirt3, phosphorylated AMPK (p-AMPK), phosphorylated dynamic-related protein 1(p-Drp1), mitochondrial fission protein 1(Fis1), mitochondrial fission factor (MFF), optic atrophy protein 1(OPA1). ResultCompared to the sham group, the left ventricular end diastolic diameter (LVIDd) and left ventricular end systolic diameter (LVIDs) were significantly increased in model group (P<0.01), while the left ventricular short axis shortening rate (LVFS) and left ventricular ejection fraction (LVEF) were significantly decreased (P<0.01). There were inflammatory cell infiltration and obvious pathological injury in myocardial tissue. ROS, MDA levels and myocardial cell apoptosis rate were significantly increased (P<0.01), SOD level, ATP content, and membrane potential were significantly decreased (P<0.01). The activity of mitochondrial respiratory chain complexes (Ⅰ-Ⅳ) was significantly decreased (P<0.01). Levels of p-Drp1, Fis1, MFF proteins were significantly up-regulated (P<0.01), while Sirt3, p-AMPK, OPA1 proteins level were significantly down-regulated (P<0.01). Compared with model group, LVIDd and LVIDs were significantly decreased (P<0.01), LVEF and LVFS were significantly increased (P<0.01). Inflammatory cell infiltration and pathological damage of myocardial tissue were significantly relieved. ROS, MDA levels and myocardial cell apoptosis rate were significantly decreased in Linggui Zhugantang group and Captopril group (P<0.01), SOD level, ATP content, and membrane potential significantly increased (P<0.01). The activity of mitochondrial respiratory chain complexes (Ⅰ-Ⅳ) increased significantly (P<0.01),and p-Drp1, Fis1, MFF protein levels were significantly down-regulated (P<0.01), Sirt3, p-AMPK, OPA1 protein were significantly up-regulated (P<0.01). ConclusionLinggui Zhugantang can alleviate oxidative stress and apoptosis damage of myocardial cells, maintain mitochondrial function stability, and its effect may be related to mitochondrial mitosis fusion and Sirt3/AMPK signaling pathway.

2.
China Pharmacy ; (12): 665-670, 2024.
Article in Chinese | WPRIM | ID: wpr-1013099

ABSTRACT

OBJECTIVE To investigate the effects and mechanism of polysaccharides from Hedyotis diffusa (HDP) on isoniazid (INH)-induced liver injury. METHODS Healthy transgenic zebrafish with liver-specific fluorescence were divided into normal group, model group (4 mmol/L INH), HDP low-concentration group (4 mmol/L INH+50 mg/mL HDP) and HDP high- concentration group (4 mmol/L INH+100 mg/mL HDP). After grouping treating, the liver fluorescence area, fluorescence intensity and pathological changes of liver tissue were observed. Human liver L02 cells were divided into normal group, model group (4 mmol/L INH), HDP low-concentration group (4 mmol/L INH+2 mg/mL HDP), and HDP high-concentration group (4 mmol/L INH + 4 mg/mL HDP). After grouping treating, the cell viability was detected, and the levels of alanine transaminase (ALT), aspartate transaminase (AST), and the content of glutathione (GSH) as well as the expression levels of silent information regulator 1 (Sirt1), nuclear factor-erythroid 2-related factor 2 (Nrf2), heme oxygenase-1 (HO-1) and quinone oxidoreductase 1 (NQO1) proteins were detected. RESULTS Compared with the model group, the HDP low- and high-concentration groups showed varying degrees of increase in the fluorescence area and fluorescence intensity (except for HDP low-concentration group) of zebrafish liver (P<0.05 or P<0.01), and the characteristics of liver injury and necrosis had been improved to varying degrees. Compared with model group, the survival rate of L02 cells, the content of GSH (except for HDP low-concentration group), the protein expression levels of Sirt1 (except for HDP low-concentration group), Nrf2, NQO1, HO-1 (except for HDP low-concentration group) were significantly increased in HDP low- and high-concentration groups (P<0.05 or P<0.01), and the levels of ALT and AST (except for HDP low-concentration group) were significantly decreased (P<0.05); the number of survival cells significantly increased, while the number of damaged or dead cells significantly decreased. CONCLUSIONS HDP has a potential protective effect against INH-induced liver injury, the mechanism of which may be associated with activating Sirt1/Nrf2 signaling pathway, improving mitochondrial function and enhancing antioxidant capacity.

3.
Journal of Clinical Otorhinolaryngology Head and Neck Surgery ; (12): 288-292, 2023.
Article in Chinese | WPRIM | ID: wpr-982734

ABSTRACT

Objective:To explore the safety and feasibility of bilateral axillo-breast approach (BABA) robot in the operation of thyroid cancer in obese women. Methods:The clinical data of 81 obese female patients who underwent da Vinci robotic thyroid cancer surgery(robotic group) at the Department of Thyroid and Breast Surgery, PLA 960 Hospital from May 2018 to December 2021 were retrospectively analyzed and compared with the clinical data of 106 obese female thyroid cancer patients who underwent open surgery(open group) during the same period. The age, body mass index(BMI), mean time of surgery, mean postoperative drainage, tumor diameter, postoperative tumor stage, number of lymph node dissection in the central and lateral cervical regions, number of positive lymph nodes in the central and lateral cervical regions, postoperative cosmetic outcome satisfaction score, mean postoperative hospital stay and postoperative complications of all patients were counted. The results were analyzed using SPSS 26.0 statistical software, and the count data were compared using the χ² test, and the measurement data were compared using the t test. Results:All patients completed the operation successfully, and there was no conversion in the robot group, postoperative pathological results were all composed of papillary thyroid carcinoma. The operation time in the robot group was(144.62±36.38) min, which was longer than that in the open group(117.06±18.72) min(P<0.05). The average age of the robot group was(40.25±9.27) years, which was lower than that of the open group(49.59±8.70) years(P<0.05). The satisfactory score of cosmetic effect in the robot group(9.44±0.65) was higher than that in the open group(5.23±1.07)(P<0.05). There was no significant difference in tumor diameter, BMI, average postoperative drainage, temporary hypoparathyroidism and recurrent laryngeal nerve injury, number of central and lateral cervical lymph node dissection, number of positive lymph nodes in the central and lateral cervical regions, and average postoperative hospital stay between the two groups. There was no permanent hypoparathyroidism and recurrent laryngeal nerve injury in both groups. Conclusion:The application of BABA pathway robot in thyroid cancer surgery in obese women is safe and feasible, and the cosmetic effect is better after operation.


Subject(s)
Humans , Female , Adult , Middle Aged , Robotics/methods , Retrospective Studies , Recurrent Laryngeal Nerve Injuries , Thyroidectomy/methods , Carcinoma, Papillary/surgery , Thyroid Neoplasms/pathology , Neck Dissection , Treatment Outcome
4.
Journal of Sun Yat-sen University(Medical Sciences) ; (6): 244-253, 2023.
Article in Chinese | WPRIM | ID: wpr-965839

ABSTRACT

ObjectiveTo observe the effects of fire-needle of Lingnan on the vitiligo model after hydroquinone-induced oxidative stress based on the Hippo-YAP signaling pathway. MethodsC57BL/6 mice were randomly divided into normal group (Control), model group (HQ), HQ+fire-needle group (FA), and positive control group (Halometasone), with 8 mice in each group. The vitiligo model was prepared by hydroquinone (HQ). The skin pathological changes were observed by depigmentation score, HE staining and Masson-Fontana. Elisa was used to detect the levels of tyrosinase (TYR), malondialdehyde (MDA) and monoamine oxidase (MAO).Western-blot and PCR were used to detect the expression of Yap1 and Tp73 among the groups. ResultsCompared with the control group, the epidermis and dermis were significantly thicker. The number of melanocyte hair follicles, basal melanocytes, epidermal cells containing melanin granules were significantly decreased, and the depigmentation score was significantly reduced(P<0.01). The level of TYR decreased, and the levels of MDA and MAO increased after modeling(P<0.01). The expression of Yap1 and Tp73 were significantly reduced (P<0.01). The dermis became thinner in the halometasone and FA group after treatment of 4 weeks. The number of melanocyte hair follicles, basal melanocytes, epidermal cells containing melanin granules increased (P<0.05). Compared with that of the HQ group, the level of TYR in the halometasone group and FA group was significantly increased (P<0.01). The levels of MDA and MAO in the FA group were decreased (P<0.05). The expressions of Yap1 and Tp73 in the FA group were significantly increased (P<0.01), and their effects were better than those in the Halometasone group (P<0.05). ConclusionsFire-needle of Lingnan protects melanocytes from oxidative stress by activating the Hippo-YAP pathway. It enhances the synthesis and function of melanocytes and promotes repigmentation by reducing the content and activity of oxidative stress products.

5.
China Journal of Chinese Materia Medica ; (24): 835-840, 2023.
Article in Chinese | WPRIM | ID: wpr-970554

ABSTRACT

"Taking drugs for a long term" is a qualitative expression of medication method based on the efficacy and safety of Chinese medicine, and the study on it is conducive to the full utilization of the efficacy and rational use of drugs. There are 148 drugs that can be taken for a long time recorded in Shen Nong's Classic of Materia Medica, accounting for 41% of the total drugs. This paper analyzed three-grade classification, natural qualities, four properties and five flavors, and efficacy features of the "long-term taking" drugs(LTTD), thus exploring the herbal source of traditional Chinese medicine health care and the rationality of effect accumulation by long-term taking. It was found that there were more than 110 top-grade LTTD in Shen Nong's Classic of Materia Medica, most of which were herbs, with sweet flavor, flat property, and no toxicity. The efficacies were mainly making body feel light and agile(Qingshen) and prolonging life. Eighty-three LTTD were included in the Chinese Pharmacopoeia(2020 edition). In the modern classification, tonic LTTD accounted for the most, followed by damp-draining diuretic LTTD and exterior-releasing LTTD. Twenty LTTD were included in the "List of Medicinal and Edible Products" and 21 were in the "List of Products Used for Health-care Food", involving in various modern health care effects, such as enhancing immunity, assisting in reducing blood lipids, and anti-oxidation. Shen Nong's Classic of Materia Medica is the classic source of traditional Chinese medicine health care, and its medication thought of taking drugs for a long term to accumulate effects has guiding significance for the regulation of sub-health and chronic diseases nowadays. The efficacy and safety of LTTD have been examined in practice for a long time, and some of the drugs are edible, which is unique in the whole cycle of health-care service, especially in line with the health-care needs in the aging society under the concept of Big Health. However, some records in the book are limited by the understanding of the times, which should be scientifically studied according to the Chinese Pharmacopoeia and the related regulations and technical requirements, under the attitude of eliminating falsifications and preserving the truth and keeping the right essence, so as to achieve further improvement, innovation, and development.


Subject(s)
Humans , Delivery of Health Care , Materia Medica , Medicine, Chinese Traditional
6.
Chinese Journal of Surgery ; (12): 227-231, 2023.
Article in Chinese | WPRIM | ID: wpr-970185

ABSTRACT

Objective: To compare the surgical outcome of robotic thyroidectomy through transoral approach and the bilateral breast-axillary approach. Methods: Retrospective analysis was made on the clinical data of patients who performed transoral robotic thyroidectomy (TORT group) or bilateral breast-axillary approach (BABA group) in the Department of Thyroid and Breast Surgery, the 960th Hospital of People's Liberation Army from July 2020 to May 2022. Both groups received lobectomy with lymph node dissection of the central region. A total of 100 cases were included in the study, including 48 cases in the TORT group and 52 cases in the BABA group. The propensity score matching method was used for 1∶1 matching of patients between the 2 groups, with a match tolerance of 0.03. There were 31 patients in each group successfully matched. In the TORT group, there were 5 males and 26 females, aged (33.2±7.9) years (range: 21 to 53 years). While there were 4 males and 27 females in the BABA group, aged (34.6±9.2) years (range: 19 to 58 years). The t test, Mann-Whitney U test, χ2 test or Fisher exact test were used to compare the clinical efficacy between the two groups. Results: All the patients successfully completed robotic thyroid surgery without conversion to open surgery. Compared with BABA group, the TORT group had longer operation time ((211.3±57.2) minutes vs. (126.2±37.8) minutes, t=6.915, P<0.01), shorter drainage tube retention time ((5.4±1.0) days vs. (6.4±1.2) days, t=-3.544, P=0.001), shorter total hospital stay ((6.6±1.2) days vs. (7.4±1.3) days, t=-2.353, P=0.022), and higher cosmetic score (9.46±0.25 vs. 9.27±0.26, t=2.925, P=0.005). There was no significant difference between the two groups in the number of lymph nodes dissection, metastasis in the central compartment, and the incidence of postoperative complications (all P>0.05). Conclusions: Compared with the bilateral breast-axillary approach, the transoral vestibular approach of robotic thyroidectomy is also safe and effective. It shows similar surgical results to the bilateral breast-axillary approach in strictly selected patients, but the postoperative recovery speed is much faster, and the hospital stay is shorter. Transoral robotic thyroidectomy is a more recommended surgical method for patients with high aesthetic demand.


Subject(s)
Male , Female , Humans , Robotic Surgical Procedures/methods , Thyroid Neoplasms/surgery , Thyroidectomy/methods , Retrospective Studies , Neck Dissection/methods , Axilla/pathology , Treatment Outcome
7.
Chinese Acupuncture & Moxibustion ; (12): 255-260, 2023.
Article in Chinese | WPRIM | ID: wpr-969980

ABSTRACT

OBJECTIVE@#To observe the effect of Shugan Tiaoshen acupuncture (acupuncture for soothing the liver and regulating the mentality) combined with western medication on depression and sleep quality in the patients with depression-insomnia comorbidity due to COVID-19 quarantine, and investigate the potential mechanism from the perspective of cortical excitability.@*METHODS@#Sixty patients with depression-insomnia comorbidity due to COVID-19 quarantine were randomly divided into an acupuncture group and a sham-acupuncture group, 30 cases in each one. The patients of both groups were treated with oral administration of sertraline hydrochloride tablets. In the acupuncture group, Shugan Tiaoshen acupuncture was supplemented. Body acupuncture was applied to Yintang (GV 24+), Baihui (GV 20), Hegu (LI 4), Zhaohai (KI 6), Qihai (CV 6), etc. The intradermal needling was used at Xin (CO15), Gan (CO12) and Shen (CO10). In the sham-acupuncture group, the sham-acupuncture was given at the same points as the acupuncture group. The compensatory treatment was provided at the end of follow-up for the patients in the sham-acupuncture group. In both groups, the treatment was given once every two days, 3 times a week, for consecutive 8 weeks. The self-rating depression scale (SDS) and insomnia severity index (ISI) scores were compared between the two groups before and after treatment and 1 month after the end of treatment (follow-up) separately. The cortical excitability indexes (resting motor threshold [rMT], motor evoked potential amplitude [MEP-A], cortical resting period [CSP]) and the level of serum 5-hydroxytryptamine (5-HT) were measured before and after treatment in the two groups.@*RESULTS@#After treatment and in follow-up, SDS and ISI scores were decreased in both groups compared with those before treatment (P<0.05), and the scores in the acupuncture group were lower than those in the sham-acupuncture group (P<0.05), and the decrease range in the acupuncture group after treatment was larger than that in the sham-acupuncture group (P<0.05). After treatment, rMT was reduced (P<0.05), while MEP-A and CSP were increased (P<0.05) in the acupuncture group compared with that before treatment. The levels of serum 5-HT in both groups were increased compared with those before treatment (P<0.05). The rMT in the acupuncture group was lower than that in the sham-acupuncture group, while MEP-A and CSP, as well as the level of serum 5-HT were higher in the acupuncture group in comparison with the sham-acupuncture group (P<0.05).@*CONCLUSION@#Shugan Tiaoshen acupuncture combined with western medication can relieve depression and improve sleep quality in the patients with depression-insomnia comorbidity due to COVID-19 quarantine, which is probably related to rectifying the imbalanced excitatory and inhibitory neuronal functions.


Subject(s)
Humans , Depression , Quarantine , Serotonin , Sleep Initiation and Maintenance Disorders , COVID-19 , Acupuncture Therapy , Comorbidity
8.
Journal of Traditional Chinese Medicine ; (12): 2216-2223, 2023.
Article in Chinese | WPRIM | ID: wpr-997288

ABSTRACT

ObjectiveTo investigate the characteristics of traditional Chinese medicine syndrome and the evolution of pathogenesis in different stages of atherosclerotic thrombotic cerebral infarction (ATCI). MethodsClinical data of 3088 ATCI patients from 8 hospitals in 6 provinces and cities were collected from the hospital information system during January 1, 2015 to December 31, 2019. After staging and counting clinical symptoms, common factors were extracted using the principal component analysis method in factor analysis. Cluster analysis was then carried out on the basis of the factor analysis. The results of the combination of the evidence element identification, cluster analysis and expert discussion were used to discuss the evidence of the different disease stages of atherosclerotic cerebral infarction. ResultsOf the 3088 ATCI patients included, 2290 cases were in the acute phase and 798 in the non-acute phase. Excluding the main symptoms of ischaemic stroke, such as numbness and weakness of limbs, unfavourable movement, unfavourable speech and dizziness, we identified 84 indicators with a frequency ≥5% of the four diagnostic information variables. Of these, 36 indicators were observed in the acute phase and 35 in the non-acute phase. Factor analysis extracted 14 common factors from each phase. We selected factors with a loading coefficient >0.3 for evidence determination. These 14 groups of common factors were used as variables for clustering. After clustering, the acute, non-acute phase were each divided into 5 categories. Based on a combination of clinical practice and expert opinion, the symptoms identified in the acute period were syndrome of deficiency of both qi and yin, syndrome of blockade of wind-phlegm-static blood (36.07%), syndrome of qi deficiency and blood stasis (20.74%), syndrome of upward disturbance of wind-fire (15.15%), syndrome of stirring wind due to yin deficiency (9.43%), and syndrome of spleen deficiency and liver hyperactivity (3.80%). In the non-acute phase, the symptoms were qi and yin deficiency with syndrome of qi stagnation and blood stasis (45.49%), syndrome of deficiency of both qi and yin (20.05%), syndrome of qi stagnation and blood stasis (16.42%), spleen-kidney deficiency syndrome (8.52%), and syndrome of hyperactivity of liver yang (4.89%). ConclusionThe acute phase of AICI is mainly characterized by blood stasis, fire, internal wind, hyperactivity of yang, qi deficiency and yin deficiency, while the non-acute phase is characterized by yin deficiency, qi deficiency, blood stasis and qi stagnation. The main pathomechanism of ATCI involves deficiency of qi and yin, as well as obstruction of the channels by phlegm and blood stasis, and the fundamental pathomechanism is deficiency of qi and yin.

9.
Chinese Journal of Endocrine Surgery ; (6): 19-23, 2023.
Article in Chinese | WPRIM | ID: wpr-989890

ABSTRACT

Objective:To observe the application of near-infrared autofluorescence imaging (NIRAF) technology combined with carbon nanoparticle (CNP) negative imaging in identification of parathyroid gland (PG) during thyroid carcinoma surgery.Methods:80 patients with thyroid cancer who underwent total thyroidectomy + central lymph node dissection performed by the same experienced physician team at the 960th Hospital of the PLA from Jan. to Mar. 2022 were prospectively included. Before operation, they were divided into two groups using random number table method before surgery: control group (40 cases) using CNP negative imaging, and experimental group (40 cases) using CNP negative imaging combined with NIRAF technique for intraoperative identification of PG. The gold standard for the identification of parathyroid glands was to compare the amount of intraoperative discovery retention misresection and transplantation of PG and the number of postoperative parathyroid hormone (PTH) and the number of complications in the two groups by immune colloidal gold technique. SPSS 25.0 software was used for statistical analysis.Results:All patients in the two groups were successfully operated and followed up. 137 149 PG were found and confirmed in the control group and the observation group, 108 132 PG were retained in situ and 29 17 PG were transplanted, the differences were statistically significant (all P <0.05) ; The number of A1 PG was 103 and 109, respectively. Among them, 84 102 were retained in situ and 19 7 were transplanted, the difference was statistically significant ( P <0.05) . There was no significant difference in the amount of A2 type PG and B type PG between the two groups ( P >0.05) . No A3 type PG was found in the two groups, and a total of 3 A3 types of PG were confirmed in postoperative pathological reports. There were no significant differences in misresection in the control group and the observation group, 5 and 2 PG were mistakenly cut, respectively (all P >0.05) . The PTH 1 day after surgery was 17.7 (5.6,30.4) pg/mL in the control group and 21.7 (12.8,38.3) pg/mL in the observation group, the difference was statistically significant ( P<0.05) . There were no significant differences in the levels of serum calcium and serum phosphorus 1 day after operation and PTH 1 month after surgery between the two groups (all P > 0.05) . Conclusion:Compared with CNP alone, combined with NIRAF technique can quickly and effectively identify PG, and PG can be better protected in situ and postoperative hypoparathyroidism can be reduced.

10.
Chinese Journal of Experimental Traditional Medical Formulae ; (24): 190-199, 2023.
Article in Chinese | WPRIM | ID: wpr-972301

ABSTRACT

ObjectiveIn view of the standardization of clinical diagnosis and treatment of the acute abdomen and the inheritance of diagnosis and treatment experience of prestigious veteran traditional Chinese medicine(TCM) doctors, a diagnosis and treatment reasoning algorithm based on association rule mining under incomplete evidence(AMIE)+ random walk was proposed to provide information services and technical support for primary doctors by recommending personalized diagnosis and treatment plans based on medical records. MethodThe experience of diagnosis and treatment of acute abdomen of prestigious veteran TCM doctors and the text data of clinical diagnosis and treatment guidelines of integrated TCM and western medicine were collected to complete the task of knowledge extraction and construct acute abdomen knowledge graph based on Neo4j. On the basis of ontology-supported rule-based reasoning, the rule reasoning based on similar syndromes was used to expand the syndrome combinations whose Jaccard similarity was greater than the threshold in the syndrome recommendation results. The semantic path coverage algorithm was used to calculate the semantic similarity between the symptom nodes. The symptom nodes were divided into 10 categories, and the symptom nodes in the same category were extended. The random walk algorithm was used to search the symptom nodes connected with the syndrome, and the connection rules between the syndrome and symptom nodes were extended to realize the knowledge reasoning of AMIE+ random walk. ResultThe acute abdomen knowledge graph included 1 320 nodes and 2 464 relationships. According to the link prediction evaluation index of knowledge reasoning, the reasoning results of the three algorithms in the auxiliary diagnosis and treatment of acute abdomen were compared. The AMIE+ random walk algorithm complemented the knowledge graph by extending the similar syndrome connection rules and the syndrome-symptom connection rules. Compared with the knowledge reasoning algorithm based on ontology rules, the area under the curve (AUC) was 15.18% higher and the accuracy was 30.36% higher, which achieved more accurate and effective knowledge inference. ConclusionThis study used knowledge graph technology to visualize the diagnosis and treatment of acute abdomen with TCM and western medicine, assisting primary clinicians in intuitively viewing the diagnosis and treatment process and data relationship. The proposed diagnosis and treatment reasoning algorithm can realize the personalized diagnosis and treatment plan recommendation at the level of "disease-syndrome-diagnosis-treatment-prescription", which can assist primary doctors in disease diagnosis and treatment and clinical decision-making, contribute to the knowledge sharing and application of diagnosis and treatment experience and clinical guidelines of prestigious veteran TCM doctors, improve the level of primary clinical diagnosis and treatment, and promote the normalization and standardization of the diagnosis and treatment process of acute abdomen with integrated TCM and western medicine.

11.
Journal of Southern Medical University ; (12): 294-299, 2023.
Article in Chinese | WPRIM | ID: wpr-971528

ABSTRACT

OBJECTIVE@#To investigate the effects of SINC, a secreted protein of Chlamydia psittaci, on autophagy of host cells and the role of MAPK/ERK signaling pathway in mediating SINC-induced autophagy.@*METHODS@#RAW 264.7 cells treated with recombinant SINC were examined for changes in expression levels of LC3-II, Beclin-1, phosphorylated and total ERK1/2 using Western blotting. The expression level of LC3 in the treated cells was detected using immunofluorescence analysis, and the formation of autophagosomes and autolysosomes was observed with transmission electron microscopy (TEM). The effect of pretreatment with U0126 (a specific ERK inhibitor) on the expression levels of LC3-II and Beclin-1 in RAW 264.7 cells exposed to different concentrations of SINC was examined using Western blotting, and LC3 puncta in the cells was detected with immunofluorescence analysis.@*RESULTS@#The expression levels of LC3-II and Beclin-1 were the highest in RAW 264.7 cells treated with 2 μg/mL SINC for 12h. Immunofluorescence analysis showed exposure to SINC significantly increased the number of cells containing LC3 puncta, where the presence of autophagosomes and autolysosomes was detected. Exposure to 2 μg/mL SINC for 15 min resulted in the most significant increase of the ratios of p-ERK1/2/ERK1/2 in RAW 264.7 cells. Pretreatment of the cells with U0126 prior to SINC exposure significantly decreased the ratio of p-ERK1/2/ERK1/2, lowered the expression levels of LC3-II and Beclin-1, and decreased LC3 aggregation in the cells.@*CONCLUSIONS@#SINC exposure can induce autophagy in RAW 264.7 cells by activating the MAPK/ERK signaling pathway.


Subject(s)
MAP Kinase Signaling System , Chlamydophila psittaci , Beclin-1 , Signal Transduction , Autophagy
12.
Acta Anatomica Sinica ; (6): 13-22, 2023.
Article in Chinese | WPRIM | ID: wpr-1015259

ABSTRACT

Objective To explore the effect of activation of mammalian target of rapmycin complex 2(mTORC2)/Akt signaling pathway on dopaminergic neurons and behavior in 6-hydroxydopamine (6-OHDA) model mice and its possible mechanism. Methods Selecting 36 mice which The Nestin-CreERTM and ROSA26-LacZ reporter genes were detected at the same time in 3-month-old male C57BL/6J mice weighing 20-25 g divideng them into 4 gruops, NS+ corn oil group, 6-OHDA+corn oil group, 6-OHDA+PP242 group and 6-OHDA+A-443654 group, and 6-OHDA was injected into the right striatum of the brain to replicate the Parkinson’s disease (PD) model of mice, and then daily intraperitoneal injection of mTORC2/Akt signaling pathway agonist A-443654 or inhibitor PP242. Serum interleukin-1β (IL-1β) and tumor necrosis factor-α(TNF-α)levels were measured by enzyme-linked immunosorbent assay. Immunohistochemistry and immunofluorescence staining were performed to investigate the change of microglia, dopaminergic neurons as well as neural progenitor cells (NPCs). Western blotting was used to detect the expression of related protein of mTORC2/Akt signaling pathway including rictor, p-Akt and regulated in development and DNA dgmage responses 1(REDD1) and the interaction between them were verified by immunoprecipitation. Finally, the behavioral performance of each group of mice was observed. Results With the activation of microglia and the increase of inflammatory factors in PD model mice, the number of dopaminergic neurons in the substantia nigra(SN) decreased significantly, and the motor function of the mice was impaired, but the number of NPCs increased significantly compared with the control mice, mTORC2/Akt signaling pathway related protein expression was also significantly up-regulated. A-443654 treatment further up-regulated the expression of these proteins, meanwhile the indicators mentioned above were ameliorated. However, the inhibitor PP242 treatment group showed completely opposite result with the agonist group. Conclusion A-443654 can promote the proliferation of NPCs and the number of new-born dopaminergic neurons by up-regulating related proteins of mTORC2/Akt signaling pathway, and reducing the activation of microglia and the level of inflammation factors, which ultimately lead to the amelioration of SN-striatal dopaminergic neurons and behavioral performance in PD model mice.

13.
Acta Anatomica Sinica ; (6): 521-530, 2023.
Article in Chinese | WPRIM | ID: wpr-1015181

ABSTRACT

[Abstract] Objective To study whether the regulation of mammalian target of rapamycin complex 2(mTORC2) / Akt signaling pathway has a protective effect on SH-SY5Y cell line damaged by 6-hydroxydopamine (6-OHDA), and to clarify its molecular mechanism. Methods SH-SY5Y cells treated with retinoic acid (RA) were given 6-OHDA, mTORC2 signaling pathway inhibitor PP242 and agonist A-443654 respectively. The changes of cell number in each group were investigated by immunofluorescent staining; The total protein was extracted and the expression level and interaction of key proteins in mTORC2 signaling pathway were determined by Western blotting and co-immunoprecipitation (CoIP); The apoptosis rate of cells in each group was detected by flow cytometry. At the same time, the co-culture Parkinson’ s disease (PD) model was made using SH-SY5Y cell line and Bv-2 cell line; MTT colorimetric method was used to detect the cell viability of each group; ELISA was used to detect the content of tumor necrosis factor-α (TNF-α) and interleukin-1β (IL-1β) in cell culture supernatant. Results The number of tyrosine hydroxylase(TH) / proliferating cell nuclear antigen (PCNA) / hochest-, TH / 5-bronmo-2’ -deoxyuridine(BrdU) -labeled positive cells in 6-OHDA-lesioned PD cell model group was significantly lower than that in the normal group; The apoptosis rate was higher; The expression of Rictor, p-Akt and regulated in DNA damage and development 1(REDD1) was increased; There was an interaction between Rictor and p-Akt or REDD1; The cell viability was significantly reduced in the co-culture model; the content of TNF-α and IL-β increased in the cell culture supernatant. With further up-regulation of the abovementioned protein expressions, the cell survival, apoptosis and pro-inflammatory cytokine levels in A-443654 group were significantly ameliorated, while PP242 group showed the opposite changes. Conclusion A-443654 activates mTORC2 signaling pathway by p-Akt, which increases the expression of Rictor and REDD1 protein. These changes contribute to the amelioration in cell survival rate, apoptosis rate, and the proliferation and differentiation and decreasion of apoptosis rate of SH-SY5Y cells. These result improved 6-OHDA-induced cell damage and inhibited the release of pro-inflammatory cytokines.

14.
Chinese Pharmacological Bulletin ; (12): 1085-1090, 2023.
Article in Chinese | WPRIM | ID: wpr-1013785

ABSTRACT

Aim To investigate the effect of YTHDF2 on the proliferation and migration of activated hepatic stellate cells(HSCs). Methods 5 jjLg • L

15.
Chinese Pharmacological Bulletin ; (12): 2390-2397, 2023.
Article in Chinese | WPRIM | ID: wpr-1013660

ABSTRACT

Aim To investigate whether Linggui Zhugan Decoction ( LGZGD) can inhibit ventricular remodeling and prevent heart failure in rats after myocardial infarction by regulating Nrf2/BNIP3 pathway. Methods The model of heart failure after myocardial infarction was established by left coronary artery ligation in rats. Two weeks after modeling, all rats were randomly divided into model group, LGZGD group, and captopril group. Meanwhile sham operation group was set up. The rats were given continuous intragastric administration with drug or distilled water for 28 days, once a day. The behavioral signs of rats in each group were observed. The cardiac function of rats in each group was examined by echocardiography. Serum BNP and NT-ProBNP content were detected by enzyme -linked immunoassay; The changes of myocardial his-topathological and collagen fibers in rats were detected using sirius staining. The contents of oxidative stress index including ROS, SOD in myocardial tissue of rats in each group were observed by DCFH-DA fluorescent probe and Enzyme-linked immunoassay. The ultra-structure of mitochondria was observed by transmission electron microscopy. Expressions of apoptotic proteins ( mitochondrial CytC, cytoplasmic CytC) were detected by Western blot. Expression of proteins related to the Nrf2/BNIP3 pathway were examined by immunofluorescence and Western blot. Results LGZGD could significantly improve the cardiac function of rats, reduce the contents of BNP and NT-ProBNP, inhibit the excessive deposition of collagen in myocardial interstiti-um, reduce ROS, increase the content of SOD, improve mitochondrial structure damage, up-regulate the expression of Nrf2 and nuclear translocation, and reduce the expression of BNIP3. Conclusions LGZGD can inhibit the ventricular remodeling and prevent the occurrence of heart failure after myocardial infarction. Its pharmacological effects are mainly related to regulating the Nrf2/BNIP3 pathway, activating Nrf2, promoting its nuclear transfer, and further down-regulating BNIP3, protecting mitochondrial function, and reducing cardiomyocyte apoptosis.

16.
China Journal of Orthopaedics and Traumatology ; (12): 574-578, 2023.
Article in Chinese | WPRIM | ID: wpr-981735

ABSTRACT

OBJECTIVE@#To analyze the clinical outcomes of mini-plate combined with wireforms in the treatment of Type C distal radial fractures with marginal articular fragments.@*METHODS@#This retrospective study included a total of 10 cases, including 5 males and 5 females, with 6 cases involving the left side and 4 cases involving the right side, of Type C distal radial fractures with marginal articular fragments. The age of the patients ranged from 35 to 67 years old. All patients underwent surgical treatment utilizing mini-plate combined with wireforms for internal fixation.@*RESULTS@#The follow-up period ranged from 6 to 18 months. Complete fracture healing was observed in all cases, with healing times ranging from 10 to 16 weeks. During the entire follow-up period, patients reported high levels of satisfaction with the treatment outcomes, and there were no incidences of incision infection, chronic wrist pain, or wrist traumatic arthritis. At the final follow-up assessment, the Mayo score for the wrist joint ranged from 85 to 95, with 7 cases rated as excellent and 3 cases as good.@*CONCLUSION@#Mini-plate combined with wireforms proves to be an effective fixation method for Type C distal radial fractures with marginal articular fragments. The early initiation of wrist joint exercises, strong fixation, maintenance of proper reduction, minimal complications, and high rates of excellent and good outcomes demonstrate the reliability and efficacy of this treatment approach.


Subject(s)
Male , Female , Humans , Adult , Middle Aged , Aged , Retrospective Studies , Reproducibility of Results , Radius Fractures/surgery , Fracture Fixation, Internal/methods , Treatment Outcome , Wrist Fractures , Wrist Joint , Bone Plates , Range of Motion, Articular
17.
Chinese Acupuncture & Moxibustion ; (12): 374-378, 2023.
Article in Chinese | WPRIM | ID: wpr-980731

ABSTRACT

OBJECTIVE@#To observe the impacts of acupuncture on depressive mood and sleep quality in patients with comorbid mild-to-moderate depressive disorder and insomnia, and explore its effect mechanism.@*METHODS@#A total of 60 patients with comorbid mild-to-moderate depressive disorder and insomnia were randomly divided into an observation group (30 cases, 1 case dropped off) and a control group (30 cases, 2 cases dropped off). In the observation group, acupuncture and low frequency repeated transcranial magnetic stimulation (rTMS) were combined for the intervention. Acupuncture was applied to Baihui (GV 20), Yintang (GV 24+), Neiguan (PC 6) and Yanglingquan (GB 34), etc., the needles were retained for 30 min; and the intradermal needles were embedded at Xinshu (BL 15) and Danshu (BL 19) for 2 days. After acupuncture, the rTMS was delivered at the right dorsolateral prefrontal cortex (R-DLPFC), with 1 Hz and 80% of movement threshold, lasting 30 min in each treatment. In the control group, the sham-acupuncture was adopted, combined with low frequency rTMS. The acupoint selection and manipulation were the same as the observation group. In the two groups, acupuncture was given once every two days, 3 times weekly; while, rTMS was operated once daily, for consecutive 5 days a week. The duration of treatment consisted of 4 weeks. Hamilton depression scale-17 (HAMD-17) and Pittsburgh sleep quality index (PSQI) scores were observed before and after treatment, as well as 1 month after the treatment completion (follow-up period) separately. Besides, the levels of nerve growth factor (BDNF) and γ-aminobutyric acid (GABA) in the serum were detected before and after treatment in the two groups.@*RESULTS@#After treatment and in follow-up, the HAMD-17 scores were lower than those before treatment in the two groups (P<0.05), and the scores in the observation group were lower than the control group (P<0.05). After treatment, the total scores and the scores of each factor of PSQI were reduced in the two groups in comparison with those before treatment except for the score of sleep efficiency in the control group (P<0.05); the total PSQI score and the scores for sleep quality, sleep latency, sleep efficiency and daytime dysfunction in the observation group were all lower than those in the control group (P<0.05). In the follow-up, except for the scores of sleep duration and sleep efficiency in the control group, the total PSQI score and the scores of all the other factors were reduced compared with those before treatment in the two groups (P<0.05); the total PSQI score and the scores of sleep quality, sleep latency, sleep duration, sleep efficiency and daytime dysfunction in the observation group were lower than the control group (P<0.05). After treatment, the levels of serum BDNF and GABA were increased in comparison with those before treatment in the observation group (P<0.05), and the level of serum BDNF was higher than that in the control group (P<0.05).@*CONCLUSION@#Acupuncture relieves depressive mood and improves sleep quality in patients with comorbid mild-to-moderate depressive disorder and insomnia. The effect mechanism may be related to the regulation of BDNF and GABA levels and the promotion of brain neurological function recovery.


Subject(s)
Humans , Sleep Initiation and Maintenance Disorders/therapy , Transcranial Magnetic Stimulation , Brain-Derived Neurotrophic Factor , Treatment Outcome , Acupuncture Therapy , Acupuncture Points , gamma-Aminobutyric Acid , Depressive Disorder
18.
Journal of Pharmaceutical Analysis ; (6): 308-316, 2022.
Article in Chinese | WPRIM | ID: wpr-931259

ABSTRACT

Recombinant human interferon α2b(rhIFNα2b)is widely used as an antiviral therapy agent for the treatment of hepatitis B and hepatitis C.The current identification test for rhIFNα2b is complex.In this study,an anti-rhIFNα2b nanobody was discovered and used for the development of a rapid lateral flow strip for the identification of rhIFNα2b.RhIFNα2b was used to immunize an alpaca,which established a phage nanobody library.After five steps of enrichment,the nanobody I22,which specifically bound rhIFNα2b,was isolated and inserted into the prokaryotic expression vector pET28a.After subsequent purification,the physicochemical properties of the nanobody were determined.A semiquantitative detection and rapid identification assay of rhIFNα2b was developed using this novel nanobody.To develop a rapid test,the nanobody I22 was coupled with a colloidal gold to produce lateral-flow test strips.The developed rhIFNα2b detection assay had a limit of detection of 1 μg/mL.The isolation of I22 and successful construction of a lateral-flow immunochromatographic test strip demonstrated the feasibility of performing ligand-binding assays on a lateral-flow test strip using recombinant protein products.The principle of this novel assay is generally applicable for the rapid testing of other com-mercial products,with a great potential for routine use in detecting counterfeit recombinant protein products.

19.
Chinese Journal of Urology ; (12): 17-22, 2022.
Article in Chinese | WPRIM | ID: wpr-933155

ABSTRACT

Objective:To identify preoperative clinical predictors of positive lymph nodes in patients with renal cell carcinoma (RCC)and provide a preoperative predictive model.Methods:The data of 173 RCC patients who underwent either retroperitoneal lymph node dissection or biopsy at a single institution from January 2016 to December 2020 were retrospectively analyzed. There were 109 males and 64 females, with an average age of (53.29±13.58) years, median tumor diameter of 70 (23-150) mm, 68 patients with local symptoms, 24 patients with systemic symptoms, and 56 patients with ECOG score ≥1. There were 96 patients with tumor pseudocapsule, 23 patients with renal vein or inferior vena cava tumor thrombus, 114 patients in stage T 1-2, 59 patients in stage T 3-4, 22 patients with distant metastasis and 88 patients with lymph node metastasis by preoperative imaging examination. Univariate analysis was performed by Mann-Whitney U test or Chi-square test, and multivariate logistic regression analysis was used to determine preoperative predictors of pathologic lymph node positivity. The significant variables were then included in a novel Nomogram to predict the probability of lymph node invasion.C-index and Bootstrap self-sampling methods were used to evaluate the discrimination and consistency of the model. Results:Of the 173 patients, 49(28.32%)and 124(71.68%)had pN 1 and pN 0 disease, respectively. Among 88 patients with suspected lymph node involvement (cN 1) assessed by preoperative imaging, only 47.73%(42/88) were confirmed to be pathologically positive. However, 8.24% (7/85) of the 85 patients with negative lymph nodes (cN 0) assessed by preoperative imaging were pathologically positive. Age, ECOG score, symptoms at presentation, tumor pseudocapsule, metastasis at diagnosis, clinical tumor stage, clinical nodal status, clinical nodal size, D-dimer, lactate dehydrogenase, microscopic hematuria were significant in the univariate analysis ( P<0.05). On multivariable analyses, the most informative independent predictors were age, clinical tumor stage, clinical nodal status, clinical nodal size and microscopic hematuria ( P<0.05). A Nomogram with good performance was developed to predict the probability of lymph node metastasis. The C-index of the model was 0.954, the calibration curve of forecasting curve with the ideal curve fit was good, indicating that the model has a good consistency. Conclusions:Younger age, microscopic hematuria, suspected lymph node involvement in imaging, larger lymph node diameter and higher T stage were independent risk factors for renal cell carcinoma with lymph node metastasis. The Nomogram based on the above factors has good identification and calibration ability, which can help predict the probability of lymph node metastasis of renal cell carcinoma before surgery.

20.
Chinese Journal of Experimental Traditional Medical Formulae ; (24): 1-11, 2022.
Article in Chinese | WPRIM | ID: wpr-940687

ABSTRACT

ObjectiveTo explore the effect of Xiao Xianxiongtang (XXXT) on the transforming growth factor (TGF)-β1-induced invasion, metastasis, and epithelial-mesenchymal transition (EMT) of gastric cancer MGC-803 cells and the underlying mechanism. MethodThe molecular docking between XXXT and nuclear factor of activated T cells (NFAT) was performed by CB-DOCK (http://clab.labshare.cn/cb-dock/). The invasion and metastasis model of MGC-803 cells was established with 10 μg·L-1 TGF-β1. MGC-803 cells were classified into blank group, model group, 0.1 g·L-1 XXXT group, 0.2 g·L-1 XXXT group, and 0.4 g·L-1 XXXT group. For further clarifying the key role of Wnt5a/Ca2+/NFAT signaling pathway in the inhibition of XXXT on gastric cancer, MGC-803 cells were transfected with Wnt5a overexpression plasmid, and then the cells were classified into blank plasmid group, Wnt5a-OE group, blank plasmid + XXXT (0.4 g·L-1) group, and Wnt5a-OE + XXXT (0.4 g·L-1) group. Cell viability was determined by cell counting kit-8 (CCK-8) assay, cell invasion and migration ability by Transwell invasion assay and wound healing assay, expression of EMT-related proteins (E-cadherin, N-cadherin, Vimentin, Snail) and Wnt5a/Ca2+/NFAT signaling pathway-related key proteins [Wnt5a, calcineurin (CaN), NFAT1, and p-NFAT1] by Western blot, and changes in intracellular Ca2+ concentration by immunofluorescence assay. ResultMolecular docking suggested that XXXT acted on Wnt5a/Ca2+/NFAT signaling pathway. XXXT (0.1, 0.2, 0.4 g·L-1) significantly promoted the loss of MGC-803 cell viability (P<0.05,P<0.01). It inhibited cells from invading the transwell lower chamber and slowed down the healing of cell wounds in a dose-dependent manner (P<0.05, P<0.01). Moreover, it promoted the expression of E-cadherin while suppressed the expression of N-cadherin, Vimentin, and Snail (P<0.05, P<0.01). Further experiments showed that XXXT could inhibit the expression of Wnt5a, CaN, NFAT1, and p-NFAT1, and reduce the nuclear expression of NFAT1 and the transcription activity mediated by NFAT1, so as to reduce the cellular Ca2+ concentration (P<0.05, P<0.01). XXXT can reverse the effect of Wnt5a (P<0.05, P<0.01). ConclusionXXXT can attenuate the invasion, metastasis, and EMT of MGC-803 cells via the Wnt5a/Ca2+/NFAT pathway, thereby weakening the tumor-promoting effect of TGF-β1. In summary, XXXT may exert therapeutic effect on gastric cancer by regulating the invasion, metastasis, and EMT of gastric cancer cells.

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