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1.
Chinese Journal of Schistosomiasis Control ; (6): 566-579, 2023.
Article in Chinese | WPRIM | ID: wpr-953833

ABSTRACT

Objective To investigate the effect of recombinant Schistosoma japonicum egg ribonuclease SjCP1412 (rSjCP1412) on proliferation, cell cycle, apoptosis and activation of human hepatic stellate cells LX-2 in vitro, and explore the underlying mechanisms. Methods The rSjCP1412 protein was expressed in Escherichia coli BL21 by prokaryotic expression, and the highly purified soluble rSjCP1412 protein was prepared by Ni NTA affinity chromatography and urea gradient refolding dialysis. Yeast RNA was digested using 12.5, 25.0, 50.0 µg rSjCP1412 proteins at 37 °C for 2, 3, 4 h, and the enzymatic products were electrophoresed on 1.5% agarose gel to observe the RNAase activity of rSjCP1412 protein. The proliferation of LX-2 cells stimulated by different doses of rSjCP1412 protein for 48 hours was measured using CCK-8 assay, and the apoptosis of LX-2 cells stimulated by different doses of rSjCP1412 protein for 48 hours was detected using the Annexin V-FITC/PI double staining, while the percentage of LX-2 cells at G0/G1, S and G2/M phases of cell cycle following stimulation with different doses of rSjCP1412 protein for 48 h was detected by DAPI staining. The type I collagen, type III collagen and α-smooth muscle actin (α-SMA) mRNA expression was quantified using quantitative florescent real-time PCR (qPCR) assay and Western blotting at transcriptional and translational levels in LX-2 cells following stimulation with different doses of rSjCP1412 protein for 48 h, while soluble egg antigen (SEA) served a positive control and PBS without rSjCP1412 protein as a normal control in the above experiments. The expression of collagen I, α-SMA and Smad4 protein was determined using Western blotting in LX-2 cells following stimulation with rSjCP1412 protein, transforming growth factor-β1 (TGF-β1) alone or in combination, to examine the signaling for the effect of rSjCP1412 protein on LX-2 cells. Results The rSjCP1412 protein was successfully expressed and the highly purified soluble rSjCP1412 protein was prepared, which had a RNase activity. Compared with the normal group, the survival rates of LX-2 cells significantly decreased post-treatment with 12.5, 25.0, 50.0 µg/mL rSjCP1412 protein and SEA for 48 h (F = 22.417 and 20.448, both P values < 0.05). The apoptotic rates of LX-2 cells significantly increased post-treatment with 12.5, 25.0, 50.0 µg/mL rSjCP1412 protein for 48 h (F = 11.350, P < 0.05), and treatment with 12.5, 25.0, 50.0 µg/mL rSjCP1412 protein for 48 h resulted in arrest of LX-2 cells in G0/G1 phase (F = 20.710, P < 0.05). Treatment with 12.5, 25.0, 50.0 µg/mL rSjCP1412 protein for 48 h caused a significant reduction in relative expression levels of collagen I (F = 11.340, P < 0.05), collagen III (F = 456.600, P < 0.05) and α-SMA mRNA (F = 23.100, P < 0.05) in LX-2 cells, and both rSjCP1412 protein and SEA treatment caused a significant reduction in collagen I (F = 1 302.000, P < 0.05), α-SMA (F = 49.750, P < 0.05) and Smad4 protein expression (F = 52.420, P < 0.05) in LX-2 cells. In addition, rSjCP1412 protein treatment inhibited collagen I (F = 66.290, P < 0.05), α-SMA (F = 31.300, P < 0.05) and Smad4 protein expression (F = 27.010, P < 0.05) in LX-2 cells activated by TGF-β1. Conclusion rSjCP1412 protein may induce apoptosis of LX-2 cells and inhibit proliferation, cell cycle and activation of LX-2 cells through down-regulating Smad4 signaling molecules.

2.
International Eye Science ; (12): 557-562, 2023.
Article in Chinese | WPRIM | ID: wpr-965776

ABSTRACT

AIM: To evaluate the clinical efficacy of P2Y2 agonist diquafosol sodium(DQS)eye drops in the treatment of diabetic dry eye.METHODS: A total of 80 patients(160 eyes)with diabetic dry eye who admitted to our hospital from January 2022 to March 2022 were selected. They were randomly divided into study group and control group. A total of 40 patients(80 eyes)in the study group were treated with 3% DQS eye drops and 40 patients(80 eyes)in the control group were treated with 0.3% sodium hyaluronate eye drops. The ocular surface disease index(OSDI)score, non-invasive tear meniscus height(NITMH), first non-invasive tear film break-up time(NIBUTf), average non-invasive tear film break-up time(NIBUTav), tarsal gland loss score, lipid layer thickness grade and bulbar redness analysis(including conjunctival grade and ciliary grade), were examined before treatment and at 1wk, 1 and 3mo after treatment, respectively. Furthermore, corneal fluorescence staining and conjunctival lissamine green staining were analyzed based on the ocular surface staining score(OSS), and the conjunctival impression cytology and confocal microscopy were evaluated before and 3mo after treatment, respectively.RESULTS: There were no differences in OSDI score, tarsal gland loss score, conjunctival grade score and ciliary grade score between the two groups before and after treatment(P&#x0026;#x003E;0.05). OSS scores in the study group were lower than those in the control group, while NITMH, NIBUTf and NIBUTav were higher than those in the control group at 1 and 3mo after treatment(P&#x0026;#x003C;0.05). After 3mo of treatment, the density of conjunctival goblet cells increased and corneal dendritic cells decreased in the study group compared with the baseline(all P&#x0026;#x003C;0.05), while there were no significant changes in the control group compared with the baseline(all P&#x0026;#x003E;0.05).CONCLUSION: 3% DQS eye drops were effective in treating diabetic dry eye without serious complications.

3.
Acta Pharmaceutica Sinica ; (12): 274-284, 2023.
Article in Chinese | WPRIM | ID: wpr-965709

ABSTRACT

Photothermal therapy (PTT) has attracted significant attention due to minimal side effects and high treatment specificity. However, it often requires very high temperature to achieve complete tumor ablation under a single PTT. Such high temperature brings obvious thermal damage and inflammatory response to the body, affecting the therapeutic effect. In recent years, nitric oxide (NO) has been used to significantly inhibit tumor growth and enhance the sensitivity of tumor cells of temperature and drugs, thus enhancing the therapeutic effect. However, compounds as NO donors often have some disadvantages such as poor biocompatibility and untargeted delivery, etc., therefore, this medical application based on NO therapy is limited. In conclusion, the organic combination of NO donors and photothermal agents (PTAs) is expected to overcome the shortcomings of single therapy and achieve the antitumor effect of "1 + 1 > 2". In view of the rapid development of NO combining with PTT in tumor therapy, this review firstly introduces the antitumor mechanisms of different types of NO donors. Then the treatment strategy based on NO combined with PTT is discussed. Finally, the prospects and challenges of this combination therapy strategy in the clinical treatment of cancer are discussed.

4.
Chinese Journal of Experimental Traditional Medical Formulae ; (24): 129-136, 2023.
Article in Chinese | WPRIM | ID: wpr-965656

ABSTRACT

ObjectiveTo explore the effect and underlying mechanism of alcohol extract of Phyllanthi Fructus on silicosis mice induced by silicon dioxide (SiO2). MethodThirty-six male Kunming mice of SPF grade were randomly divided into a blank group,a model group,high-, medium, and low-dose Phyllanthi Fructus groups (800, 400, 200 mg·kg-1),and a tetrandrine group (0.039 mg·kg-1),with six mice in each group. The silicosis model was induced by static SiO2 exposure in mice except for those in the blank group. After 28 days of administration by gavage,the lung tissues were collected and the organ coefficient was calculated. Hematoxylin-eosin(HE)staining and Masson staining were used to detect the morphology of lung tissues. The content of hydroxyproline (HYP),superoxide dismutase (SOD),malondialdehyde (MDA), and catalase (CAT) in serum was detected by enzyme-linked immunosorbent assay (ELISA). Western blot and Real-time polymerase chain reaction(Real-time PCR) were used to detect the protein and mRNA expression of nuclear factor E2-related factor 2 (Nrf2),heme oxygenase-1 (HO-1),NAD(P)H:quinone oxidoreductase 1 (NQO1),and Kelch-like ECH-associated protein 1 (Keap1), respectively. ResultCompared with the blank group,the model group showed seriously damaged morphological structure of lung tissues with inflammatory cell infiltration and fibrous tissue proliferation, reduced serum content of SOD and CAT(P<0.01),increased content of HYP and MDA(P<0.01), down-regulated protein and mRNA expression of Nrf2,HO-1, and NQO1(P<0.01),and up-regulated protein and mRNA expression of Keap1 (P<0.05,P<0.01). Compared with the model group,the high- and medium-dose Phyllanthi Fructus groups showed significantly restored morphological structure of lung tissues with reduced collagen deposition, increased serum content of SOD and CAT(P<0.05,P<0.01),decreased content of HYP and MDA(P<0.01), up-regulated protein and mRNA expression of Nrf2,HO-1, and NQO1 (P<0.05,P<0.01),and down-regulated protein and mRNA expression of Keap1(P<0.05,P<0.01). ConclusionThe alcohol extract of Phyllanthi Fructus can inhibit pulmonary fibrosis in silicosis mice,and the underlying mechanism may be related to the regulation of the Nrf2/antioxidant response element (ARE) signaling pathway.

5.
Chinese Journal of Experimental Traditional Medical Formulae ; (24): 220-228, 2023.
Article in Chinese | WPRIM | ID: wpr-964963

ABSTRACT

ObjectiveTo analyze relevant literature on Lianhua Qingwen preparations and clarify the research advances and hot spots in this field, so as to provide references for clinical rational application and further research. MethodLiterature related to Lianhua Qingwen preparations in the recent 10 years was retrieved from six databases, including China National Knowledge Infrastructure(CNKI), VIP, Wanfang Data, PubMed, and Web of Science, followed by management and analysis by NoteExpress and CiteSpace. ResultFinally, 344 and 76 Chinese and English research articles were included, and the number of publications increased in recent years. The research articles were published in 162 Chinese and 48 English journals. Shijiazhuang Yiling Pharmaceutical Co., Ltd. and Guangzhou Medical University were institutions with the largest number of Chinese and English publications, respectively. LIU Minyan was the author who had published the most articles. Keywords with high frequency included clinical efficacy, Lianhua Qingwen, inflammatory factors, traditional Chinese medicine, and coronavirus disease-2019(COVID-19). Nineteen clusters, including clinical efficacy, Chinese medicine, Lianhua Qingwen, COVID-19, and influenza A virus, and 47 emergent keywords, including herpes zoster, pneumonia, inflammatory factors, influenza, and gut microbiota, were generated. ConclusionCooperation and exchanges in this field are insufficient. Research focuses on the clinical efficacy of Lianhua Qingwen in the treatment of COVID-19 and other diseases, pharmacological action and mechanism of antiviral drugs, and micro-mechanism research focuses on related pathways and target proteins, as well as the combination of Chinese and western medicines.

6.
Chinese Journal of School Health ; (12): 195-199, 2023.
Article in Chinese | WPRIM | ID: wpr-964409

ABSTRACT

Objective@#To investigate the associations between early life exposure to particulate matter with an aerodynamic diameter less than 2.5 μm (PM 2.5 ) and the risk of autism spectrum disorder (ASD) among school aged children.@*Methods@#A total of 165 children with ASD and 165 age and gender matched typical development (TD) children were recruited. Children s basic information were obtained via questionnaires, and the severity of ASD symptoms was assessed with Social Responsiveness Scale (SRS). Early life PM 2.5 exposure (preconception, entire pregnancy, and the first two years after birth) were extracted from the Tracking Air Pollution in China (TAP) datasets. Conditional Logistic regression and generalized linear model were used to evaluate the associations of early life exposure to PM 2.5 with the risk and the ASD severity symptoms, respectively.@*Results@#The PM 2.5 exposure of ASD group during preconception[(55.08±9.34)μg/m 3], entire pregnancy[(50.44±8.71)μg/m 3], the first year after birth [(45.04± 8.25 )μg/m 3] and the second year after birth [(40.19±7.12)μg/m 3] were significant higher than those in TD children [(47.66± 7.63 , 44.19±7.16, 38.95±6.07, 35.76±5.65)μg/m 3]( t =7.94, 7.13, 7.70, 6.32, P <0.05). After adjusting for potential confounding, each increase of 1 μg/m 3 in PM 2.5 was associated with higher risk of ASD during preconception ( OR=1.21, 95%CI =1.13-1.29), entire pregnancy( OR=1.18, 95%CI =1.11-1.26), the first year after birth ( OR=1.30, 95%CI =1.18-1.43) and the second year after birth ( OR=1.29, 95%CI =1.17-1.42). No similar results were observed regarding the analyses of SRS total and sub scale scores( P >0.05).@*Conclusion@#Early life exposure to PM 2.5 is relate to the risk of ASD, these findings indicated that more attention should be paid to ambient PM pollution in the early life prevention and control of ASD.

7.
Chinese Journal of Industrial Hygiene and Occupational Diseases ; (12): 383-387, 2023.
Article in Chinese | WPRIM | ID: wpr-986019

ABSTRACT

The surveillance of occupational disease has entered a new stage ofdevelopment, with the implementation of the national health informatization project. To improve the efficiency and quality of occupational disease monitoring information reporting in this paper, the system architecture and related management regulations, as long as the major changes and achievement of "surveillance system of occupational disease and health hazards information" under the framework of National Health Insurance Informatization Project were elaborated. The deficiencies existing in the system were analyzed, and expectation for the construction of the occupational disease surveillance system was addressed.


Subject(s)
Humans , Occupational Diseases , Occupational Health
8.
Chinese Journal of Industrial Hygiene and Occupational Diseases ; (12): 353-357, 2023.
Article in Chinese | WPRIM | ID: wpr-986012

ABSTRACT

Objective: To understand the late reporting and the under-reporting of occupational disease from 2018 to 2020 in China and analyze the causes, so as to provide scientific evidence for improving the quality of occupational disease reports in China, timely acquiring the incidence of occupational disease, and assessing the occupational hazards. Methods: From May to December 2021, A total of 320 occupational disease diagnostic institutions were selected for investigation. The original documents of occupational disease diagnosis cases from 2018 to 2020 were compared with the online reported cases, and late reported and under-reported cases of occupational disease were analyzed. Results: A total of 32207 diagnosed cases from 2018 to 2020 were investigated, including 28934 confirmed cases and 3273 cases without occupational disease. The overall late reported rate and under-reported rate of confirmed cases were 20.2% and 2.1%, respectively. There were significant differences in the rate of late reporting and under-reporting of occupational diseases in different regions and different types of diagnostic institutions (P<0.001). The southwest region had the highest rates of late reporting and under-reporting, 61.6% and 7.9% respectively. The late reported rate of all kinds of occupational diseases was about 15.0%, and the under-reported rate was from 1.5.0% to 5.0%. Conclusion: At present, the phenomenon of late reporting and under-reporting occupational diseases is still obvious. It is necessary to strengthen the inspection of occupational disease reporting, improve the quality of occupational disease reporting, and provide scientific basis for the formulation of occupational disease prevention and control policies.


Subject(s)
Humans , Occupational Diseases/diagnosis , China/epidemiology , Incidence
9.
Chinese Journal of School Health ; (12): 1238-1241, 2023.
Article in Chinese | WPRIM | ID: wpr-985597

ABSTRACT

Objective@#To investigate the health of deciduous teeth and the effect of deciduous teeth caries on the nutritional status of Tibetan children in kindergartens in Zhag-yab of Tibet, so as to provide a reference for the prevention and treatment of dental caries in local children.@*Methods@#A cross sectional survey was conducted among all Tibetan children aged 3 to 7 years in kindergartens from 13 districts in Zhag yab of Tibet, a total of 1 263 eligible children were included. Oral examination, height, weight measurement and hemoglobin test were performed. The health status of children was evaluated according to WHO diagnostic criteria of dental caries rate, average of decayed missing filled tooth(DMFT), malnutrition and anemia, and the correlation between deciduous teeth caries and nutritional status of children were analyzed.@*Results@#The overall deciduous teeth caries prevalence rate of Tibetan children in Zhag yab kindergarten was 62.6%, and the mean dmft was (4.0±4.6). Aged 3, 4, 5, 6, 7-year-old children s deciduous teeth caries rate were 31.1%, 55.3%, 63.8%, 70.9%, 76.6%, respectively, mean dmft were (1.1±2.0) (2.9±3.4) ( 3.5± 3.3) (5.4±5.4) (5.9±6.6) respectively. The prevalence of deciduous teeth caries and mean dmft increased with age, and the differences among age groups were statistically significant ( χ 2/F=72.17, 33.47, P <0.05). The overall detection rate of malnutrition( 25.4% ), stunting(12.3%), underweight(12.6%), wasting(10.9%) and anemia(29.6%) in caries children were higher than those in children without caries(19.5%, 8.1%, 6.1%, 6.6%, 15.5%), the differences were statistically significant ( χ 2=5.81, 5.49, 13.61 , 6.52, 32.02, P <0.05). Caries children s overweight rate (3.7%) was higher than that of children without caries (3.4%), obesity rate ( 1.3% ) was lower than that of children without caries(1.9%), there was no statistically significant difference ( χ 2=0.07, 0.82, P >0.05).@*Conclusion@#The problem of deciduous teeth caries in kindergartens in Zhag yab is serious, and it is closely related to the occurrence of malnutrition and anemia. The prevention and intervention of dental caries in local children should be strengthened.

10.
Journal of Southern Medical University ; (12): 1-7, 2023.
Article in Chinese | WPRIM | ID: wpr-971488

ABSTRACT

OBJECTIVE@#To investigate serum thyroid stimulating hormone (TSH) level and its changes with age in apparently healthy Chinese elderly population and analyze the differences between TSH levels detected using Roche and Snibe electrochemiluminescence immunoassay analyzers.@*METHODS@#General clinical data and frozen fasting serum samples were collected from 5451 apparently healthy Chinese elderly individuals (> 60 years) from 10 centers in different geographic regions in China. Thyroid function indexes including TSH level were detected using Roche and Snibe electrochemiluminescence immunoassay analyzer, and the median (2.5% and 97.5% quantiles) TSH level was calculated. The variations of TSH level among the participants with geographic regions, gender, and age (with an interval of 5 years) were analyzed to determine the influence of these factors on TSH level.@*RESULTS@#The reference ranges of serum TSH level established using Roche and Snibe electrochemiluminescence immunoassay analyzers were 0.42-9.47 mU/L and 0.36-7.98 mU/L, respectively, showing significant differences between the two methods (P < 0.001). The TSH levels measured at two centers in Western China were significantly higher than those at the other centers (P < 0.05). In elderly male population, serum TSH level tended to increase with age, which was not observed in elderly female population. At the age of 60-75 years, women generally had higher serum TSH level than men, but this difference was not observed in the population beyond 75 years.@*CONCLUSION@#In elderly population, serum TSH level can vary with geographic region, gender, and age, but there was no need for establishing specific reference ranges for these factors. The differences between different detection methods should be evaluated when interpreting the detection results of TSH level.


Subject(s)
Aged , Female , Humans , Male , Middle Aged , Asian People , China , Fasting , Health Status , Thyrotropin/blood
11.
Journal of Zhejiang University. Science. B ; (12): 130-142, 2023.
Article in English | WPRIM | ID: wpr-971475

ABSTRACT

Polymyxin B, which is a last-line antibiotic for extensively drug-resistant Gram-negative bacterial infections, became available in China in Dec. 2017. As dose adjustments are based solely on clinical experience of risk toxicity, treatment failure, and emergence of resistance, there is an urgent clinical need to perform therapeutic drug monitoring (TDM) to optimize the use of polymyxin B. It is thus necessary to standardize operating procedures to ensure the accuracy of TDM and provide evidence for their rational use. We report a consensus on TDM guidelines for polymyxin B, as endorsed by the Infection and Chemotherapy Committee of the Shanghai Medical Association and the Therapeutic Drug Monitoring Committee of the Chinese Pharmacological Society. The consensus panel was composed of clinicians, pharmacists, and microbiologists from different provinces in China and Australia who made recommendations regarding target concentrations, sample collection, reporting, and explanation of TDM results. The guidelines provide the first-ever consensus on conducting TDM of polymyxin B, and are intended to guide optimal clinical use.


Subject(s)
Humans , Anti-Bacterial Agents/therapeutic use , China , Drug Monitoring/methods , Polymyxin B , Practice Guidelines as Topic
12.
Chinese Journal of Otorhinolaryngology Head and Neck Surgery ; (12): 212-217, 2023.
Article in Chinese | WPRIM | ID: wpr-971436

ABSTRACT

Objective: To explore the reasonable time of prophylactic thyroidectomy for RET gene carriers in multiple endocrine neoplasia(MEN) 2A/2B families. Methods: From May 2015 to August 2021, RET gene carriers in MEN2A/MEN2B families were dynamically followed up at the Department of Thyroid Head and Neck Surgery, Beijing Tongren Hospital of Capital Medical University. The high-risk patients were encouraged to undergo prophylacitc total thyroidectomy according to the principle of "graded early warning system", namely the evaluation of gene detection, calcitonin value and ultrasound examination successively. Seven cases underwent the surgery, including 3 males and 4 females, aged from 7 to 29 years. According to the risk stratification listed in the guidelines of the American Thyroid Association in 2015, there were 2 cases of the highest risk, 2 cases of the high risk and 3 cases of the modest risk. Calcitonin index remained within the normal range in 3 cases and elevated in 4 cases before operation. All 7 patients underwent thyroidectomy with lymph node dissection of the level Ⅵ performed in 4 patients. Results: The time from suggestion to operation was 2 to 37 months, with an average of 15.1 months. The 6 patients were medullary thyroid carcinoma and 1 case with C-cell hyperplasia. The follow-up time was 2 to 82 months, with an average of 38.4 months. Postoperative serum calcitonin levels of all cases decreased to normal level, with biochemical cure. There was no sign of recurrence on ultrasound examination. All 7 patients had no serious complications, no obvious thyroid dysfunction. Their height, weight and other indicators of pediatric patients were similar to those of their peers, with normal growth and development. Conclusion: For healthy people with MEN2A/MEN2B family history, prophylactic thyroidectomy can be carried out selectively based on the comprehensive evaluation of "graded early warning system" with strict screening and close monitoring.


Subject(s)
Female , Male , Humans , Child , Adolescent , Young Adult , Adult , Multiple Endocrine Neoplasia Type 2b/surgery , Thyroidectomy , Multiple Endocrine Neoplasia Type 2a/surgery , Calcitonin , Germ-Line Mutation , Proto-Oncogene Proteins c-ret/genetics
13.
Journal of Central South University(Medical Sciences) ; (12): 285-293, 2023.
Article in English | WPRIM | ID: wpr-971396

ABSTRACT

The cardiovascular patch, served as artificial graft materials to replace heart or vascular tissue defect, is still playing a key role in cardiovascular surgeries. The defects of traditional cardiovascular patch materials may determine its unsatisfactory long-term effect or fatal complications after surgery. Recent studies on many new materials (such as tissue engineered materials, three-dimensional printed materials, etc) are being developed. Patch materials have been widely used in clinical procedures of cardiovascular surgeries such as angioplasty, cardiac atrioventricular wall or atrioventricular septum repair, and valve replacement. The clinical demand for better cardiovascular patch materials is still urgent. However, the cardiovascular patch materials need to adapt to normal coagulation mechanism and durability, promote short-term endothelialization after surgery, and inhibit long-term postoperative intimal hyperplasia, its research and development process is relatively complicated. Understanding the characteristics of various cardiovascular patch materials and their application in cardiovascular surgeries is important for the selection of new clinical surgical materials and the development of cardiovascular patch materials.


Subject(s)
Cardiac Surgical Procedures/methods , Tissue Engineering , Heart Ventricles , Heart Atria , Treatment Outcome
14.
Chinese journal of integrative medicine ; (12): 170-178, 2023.
Article in English | WPRIM | ID: wpr-971338

ABSTRACT

OBJECTIVE@#To explore the protective effect and possible mechanisms of bloodletting acupuncture at Jing-well points (BAJP) pre-treatment on acute hypobaric hypoxia (AHH)-induced myocardium injury rat.@*METHODS@#Seventy-five rats were randomly divided into 5 groups by a random number table: a control group (n=15), a model group (n=15), a BAJP group (n=15), a BAJP+3-methyladenine (3-MA) group (n=15), and a BANA (bloodletting at nonacupoint; tail bleeding, n=15) group. Except for the control group, the AHH rat model was established in the other groups, and the corresponding treatment methods were adopted. Enzyme-linked immunosorbent assay (ELISA) was used to detect creatine kinase isoenzyme MB (CK-MB) and cardiac troponins I (CTnI) levels in serum and superoxide dismutase (SOD) and malondialdehyde (MDA) levels in myocardial tissue. Hematoxylin-eosin (HE) staining was used to observe myocardial injury, and terminal deoxynucleotidyltransferase-mediated dUTP-biotin nick end labeling (TUNEL) staining was used to observe cell apoptosis. Transmission electron microscopy detection was used to observe mitochondrial damage and autophagosomes in the myocardium. The mitochondrial membrane potential of the myocardium was analyzed with the fluorescent dye JC-1. Mitochondrial respiratory chain complex (complex I, III, and IV) activities and ATPase in the myocardium were detected by mitochondrial respiratory chain complex assay kits. Western blot analysis was used to detect the autophagy index and hypoxia inducible factor-1α (HIF-1α)/Bcl-2 and adenovirus E1B 19k Da-interacting protein 3 (BNIP3) signaling.@*RESULTS@#BAJP reduced myocardial injury and inhibited myocardial cell apoptosis in AHH rats. BAJP pretreatment decreased MDA levels and increased SOD levels in AHH rats (all P<0.01). Moreover, BAJP pretreatment increased the mitochondrial membrane potential (P<0.01), mitochondrial respiratory chain complex (complexes I, III, and IV) activities (P<0.01), and mitochondrial ATPase activity in AHH rats (P<0.05). The results from electron microscopy demonstrated that BAJP pretreatment improved mitochondrial swelling and increased the autophagosome number in the myocardium of AHH rats. In addition, BAJP pretreatment activated the HIF-1α/BNIP3 pathway and autophagy. Finally, the results of using 3-MA to inhibit autophagy in BAJP-treated AHH rats showed that suppression of autophagy attenuated the treatment effects of BAJP in AHH rats, further proving that autophagy constitutes a potential target for BAJP treatment of AHH.@*CONCLUSION@#BAJP is an effective treatment for AHH-induced myocardial injury, and the mechanism might involve increasing HIF-1α/BNIP3 signaling-mediated autophagy and decreasing oxidative stress.


Subject(s)
Animals , Rats , Acupuncture Therapy , Altitude , Apoptosis , Autophagy , Bloodletting , Hypoxia/metabolism , Membrane Proteins/pharmacology , Mitochondrial Proteins/pharmacology , Oxidative Stress , Rats, Sprague-Dawley
15.
Chinese Journal of Experimental Traditional Medical Formulae ; (24): 37-46, 2023.
Article in Chinese | WPRIM | ID: wpr-996808

ABSTRACT

ObjectiveTo investigate the effect and mechanism of Dahuang Zhechongwan (DHZCW) on adenine-induced renal fibrosis in rats from the perspective of intestinal flora. MethodThirty-six SD rats were randomly divided into a blank group, a model group, and high-, medium- and low-dose DHZCW groups (0.168, 0.084, 0.042 g·kg-1), and a pirfenidone group (200 mg·kg-1), with 6 rats in each group. Except for those in the blank group, rats in other groups were treated with adenine suspension (250 mg·kg-1) by gavage for 28 days for renal fibrosis model induction. Subsequently, they received drug intervention for 4 weeks. Urine samples were collected from rats in metabolic cages, and renal function indicators including blood urea nitrogen (BUN), urea, creatinine (Crea), cystatin C (Cys C), and 24-hour urine protein (24 h TP) were measured. Kidney samples were collected and subjected to hematoxylin-eosin (HE) staining and Masson's trichrome staining to observe the pathological changes in rat renal tissues. Western blot was used to detect the expression levels of key effector proteins α-smooth muscle actin (α-SMA), type Ⅰ collagen (ColⅠ), and type Ⅲ collagen (ColⅢ) in the kidneys. High-throughput sequencing of 16S rDNA was used to analyze the species diversity of rat intestinal flora. ResultCompared with the blank group, the model group showed increased BUN, urea, Crea, Cys C, and 24 h TP levels (P<0.01). Compared with the model group, the high-, medium-, and low-dose DHZCW groups, as well as the pirfenidone group, showed significant reductions in BUN, urea, Crea, Cys C, and 24 h TP levels (P<0.01), indicating that DHZCW intervention significantly improved renal function. In the model group, renal tissues exhibited significant fibrotic changes, and the protein levels of α-SMA, ColⅠ, and ColⅢ were significantly increased (P<0.01) compared to those in the blank group. Compared with the model group, the high-dose DHZCW group and the pirfenidone group had relatively normal tissue structure, with no significant pathological damage observed. However, fibrotic changes were observed in the medium- and low-dose DHZCW groups, with the changes being more significant in the low-dose group. The protein levels of α-SMA, ColⅠ, and ColⅢ were significantly decreased in the high-, medium-, and low-dose DHZCW groups, as well as the pirfenidone group (P<0.01), indicating that DHZCW effectively reduced abnormal collagen deposition and inhibited renal fibrosis. From the perspective of intestinal flora, at the phylum level, compared with the blank group, the model group showed a significant increase in the abundance of Firmicutes and a decrease in Bacteroidetes, leading to a significant imbalance in their ratio. At the family level, the model group decreased the abundance of Lachnospiraceae, Prevotellaceae, and Bacteroidota_unclassified, and increased the abundance of Ruminococcaceae, Lactobacillaceae, and Oscillospiraceae. At the genus level, the model group showed significantly reduced abundance of Firmicutes_unclassified, Bacteroidota_unclassified, and Prevotellaceae_UCG-001, etc., and increased abundance of UCG-005, Clostridia_UCG-014_unclassified, etc. Compared with the model group, DHZCW effectively reduced the abundance of potential pathogenic bacteria and increased the abundance of beneficial bacteria, regulating the intestinal flora. ConclusionDHZCW can effectively improve renal function and inhibit renal fibrosis, and its mechanism of action may be related to the regulation of intestinal flora.

16.
Chinese Journal of Clinical Thoracic and Cardiovascular Surgery ; (12): 718-723, 2023.
Article in Chinese | WPRIM | ID: wpr-996584

ABSTRACT

@#Objective    To compare the outcomes following emergency surgery or conservative treatment for patients with acute type A aortic intramural hematoma (IMH). Methods    Clinical data of consecutive patients diagnosed with acute type A aortic IMH in our hospital from September 2014 to December 2018 were retrospectively analyzed. The patients who met our surgical indications received surgery (an operation group) and other patients received strict conservative treatment (a conservative treatment group). Results    Finally 127 patients were enrolled, including 112 males and 15 females with an average age of 53.6±13.0 years. Of 127 patients, 85 (66.9%) patients accepted emergency surgery and 42 (33.1%) patients accepted strict conservative treatment. There was no difference between the two groups in early mortality or complications (P>0.05). The 5-year survival rate was 90.4% in the operation group and 74.3% in the conservative treatment group (P=0.010). A maximum aortic diameter in the ascending aorta and aortic arch≥45 mm and maximum thickness of IMH in the same section≥8 mm were risk factors for IMH-related death in patients undergoing conservative treatment (P<0.001). Conclusion    The mortality associated with emergency surgery for patients with acute type A aortic IMH is satisfactory. In clinical centers with well-established surgical techniques and postoperative management, emergency surgical treatment may provide a better outcome than conservative treatment for patients with acute type A aortic IMH.

17.
Chinese Journal of Nephrology ; (12): 305-311, 2023.
Article in Chinese | WPRIM | ID: wpr-994979

ABSTRACT

In recent years, with the development of metabolic reprogramming research, people have changed their understanding of the biological effects of immune cells. Under the stimulation of inflammatory response, immune cells re-regulate their metabolism and bioenergetics, provide energy and substrates for cell survival, and initiate immune effect functions. Nod-like receptor protein 3 (NLRP3) inflammasome, as an important component of the innate immune system, has been shown to sense metabolites such as uric acid and cholesterol crystals, and can be inhibited by metabolites such as ketones. It is also regulated by mitochondrial reactive oxygen species and glycolytic components (such as hexokinase). Recent studies have shown that a variety of metabolic pathways converge as effective regulators of NLRP3 inflammasome. The paper reviews the metabolic regulatory pathways and specificity of NLRP3 inflammasome activation, and its role in renal diseases.

18.
Chinese Journal of Neurology ; (12): 158-163, 2023.
Article in Chinese | WPRIM | ID: wpr-994813

ABSTRACT

Objective:To improve clinicians′ understanding of developmental and epileptic encephalopathy (DEE) caused by PPP3CA gene mutation. Methods:Clinical data of a patient with DEE diagnosed in the First Department of Neurology, Hebei Children′s Hospital in September 2018 were collected. The whole-exome sequencing of the proband′s family was performed, and the characteristics of gene mutation were analyzed. Literature review was carried out based on the reported cases related to PPP3CA gene. Results:The proband, a 3 months and 20 days old girl, was admitted to the hospital with a history of paroxysmal confusion with extremities shaking for 2 days. The clinical manifestations included frequent epilepsy seizures and hypoevolutism. Brain magnetic resonance imaging showed that the bilateral frontotemporal extracerebral space was slightly wider. The video electroencephalography showed hyperarrhythmia and a cluster of spastic seizures. Whole exome sequencing of the family revealed that the proband had a heterozygous de novo frameshift truncating mutation in the PPP3CA gene: c.1255-1256delAG (p.Ser419Cysfs*31). From the establishment of the database to May 2022, 8 foreign literatures and 1 Chinese literature were retrieved, and a total of 21 children with PPP3CA gene mutation were reported, with clinical developmental delay, cognitive dysfunction and abnormal electroencephalography activity. Conclusions:The frameshift truncating mutation of the PPP3CA gene (c.1255-1256delAG) is the hereditary etiology of this patient. For cases of frequent seizures with poor efficacy of antiepileptic drugs, and developmental delay, genetic testing should be performed to confirm diagnosis and treatment.

19.
Chinese Journal of Geriatrics ; (12): 243-247, 2023.
Article in Chinese | WPRIM | ID: wpr-993801

ABSTRACT

Perimenopausal period includes the whole process from the beginning of the decline of gonadal function to the complete loss, which lasts for 1 to 10 years.It is a fragile'window period'with the high incidence of mental illness for women.During this period, the mental health status of women is closely related to their mental health status at older age.Emotional disorders, sleep disorders, and cognitive impairment are common in perimenopausal and postmenopausal women, but currently receive insufficient attention.Therefore, the present review discusses the current state of research on the prevalence, pathogenesis, intervention, and management of the above-mentioned disorders, and thus to provide a basis for prevention and intervention programs among perimenopausal women.

20.
Chinese Journal of Hepatobiliary Surgery ; (12): 86-90, 2023.
Article in Chinese | WPRIM | ID: wpr-993286

ABSTRACT

Objective:To analyze the risk factors of short-term recurrence of hepatocellular carcinoma (HCC) treated by transcatheter arterial chemoembolization combined with radiofrequency ablation (TACE-RFA), and to predict the short-term recurrence rate by establishing a nomogram model.Methods:The clinical data of patients with hepatocellular carcinoma treated with TACE-RFA at the PLA General Hospital from January 2010 to December 2019 were retrospectively analyzed. Of 125 patients who were included, there were 103 males and 22 females, aged (56.6±8.9) years old. Based on whether tumors had recurred within 12 months after treatment, the patients were divided into two groups: the recurrent group ( n=86) and the non-recurrent group ( n=39). The baseline conditions, tumor characteristics and preoperative laboratory examination resultss were collected and the patients were followed-up by outpatient reexaminations. Multivariate logistic regression analysis was used to study the risk factors of short-term recurrence. C-index, correction model and ROC curve were used to evaluate the model. Results:Multivariate logistics regression analysis showed that the neutrophil to lymphocyte ratio (NLR) >1.25 ( OR=2.87, P=0.048), albumin-γ-glutamyltransferase ratio (AGR)≤0.3 ( OR=3.40, P=0.043), incomplete tumor encapsulation ( OR=3.81, P=0.007) and maximum tumor diameter ( OR=1.98, P=0.003) were independent risk factors for short-term recurrence after TACE-RFA. Applying the above factors to construct the nomograph, the C-index was 0.767, the area under the curve was 0.77 (95% CI: 0.67-0.85), and the calibration curve had a good consistency. Conclusion:NLR>1.25, AGR≤0.3, incomplete tumor encapsulation and tumor maximum diameter were risk factors of short-term recurrence after TACE-RFA in patients with HCC. The nomogram model based on the above factors was of good value in predicting short-term recurrence after TACE-RFA.

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