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1.
Article in Chinese | WPRIM | ID: wpr-920363

ABSTRACT

Objective To compare the effects of random forest and SARIMA (Seasonal Autoregressive Integrated Moving Average) on predicting incidence rate of brucellosis. Methods Using Brucellosis cases reported in the China Disease Prevention and Control Information System from 2005 to 2017, two models, random forest and SARIMA, were established for training and forecasting, and the forecasting results of the two models were compared. Results The R2 (R Squared) and RMSE (Root Mean Squared Error) of SARIMA model and random forest model are 0.904, 0.034351, 0.927 and 0.03345 respectively. Conclusion Both models have high prediction accuracy and can predict the incidence of brucellosis. Random forest prediction is a little bit better than SARIMA model and has more practical value.

2.
China Pharmacy ; (12): 366-371, 2022.
Article in Chinese | WPRIM | ID: wpr-913097

ABSTRACT

OBJECTIVE To investigate the situation ,influential factors and their re lationship of hospital pharmacy managers ’ servant leadership behavior and hospital pharmacists ’job satisfaction. METHODS The questionnaire survey method was adopted to stratified cluster sampling from primary ,secondary and tertiary hospitals ,five for each in Henan province. The personal basic data scale of pharmacists ,the hospital pharmaceutical service leadership behavior scale and the job satisfaction scale of pharmacists were used to conduct a questionnaire survey among hospital pharmacists. Excel 2019 and SPSS 23.0 software were used for statistical analysis. RESULTS A total of 956 questionnaires were distributed and 882 questionnaires were recovered ,including 841 valid questionnaires,with an effective recovery rate of 95.35%. The reliability coefficients Cronbach’s α of hospital pharmacy managers ’ servant leadership behavior scale and hospital pharmacists ’job satisfaction scale were 0.986 and 0.978,and the validity coefficients KMO were 0.908 and 0.977(P<0.01). The total score of hospital pharmacy managers ’servant leadership behavior was (110.73± 18.63). The total score of hospital pharmacists ’job satisfaction was (126.33±17.79). Hospital grade ,gender,age,professional title and highest education level all affected pharmacists ’recognition for managers ’servant leadership behavior (P<0.05). Hospital grade,age,professional title ,marital status ,highest education level and position all affected job satisfaction (P<0.05). The servant leadership behavior of hospital pharmacy managers was positively correlated with the job satisfaction of hospital pharmacists (correlation coefficient r was 0.521-0.698,all P<0.01). CONCLUSIONS The promotion and optimization the servant leadership behavior of hospital pharmacy managers can improve the job satisfaction of pharmacists ,stabilize the team of pharmacists ,and provide high-quality pharmaceutical care for patients ,so as to improve the core competitiveness of the hospital.

3.
Acta Pharmaceutica Sinica B ; (6): 1473-1486, 2022.
Article in English | WPRIM | ID: wpr-929350

ABSTRACT

The development of nanomedicine has recently achieved several breakthroughs in the field of cancer treatment; however, biocompatibility and targeted penetration of these nanomaterials remain as limitations, which lead to serious side effects and significantly narrow the scope of their application. The self-assembly of intermediate filaments with arginine-glycine-aspartate (RGD) peptide (RGD-IFP) was triggered by the hydrophobic cationic molecule 7-amino actinomycin D (7-AAD) to synthesize a bifunctional nanoparticle that could serve as a fluorescent imaging probe to visualize tumor treatment. The designed RGD-IFP peptide possessed the ability to encapsulate 7-AAD molecules through the formation of hydrogen bonds and hydrophobic interactions by a one-step method. This fluorescent nanoprobe with RGD peptide could be targeted for delivery into tumor cells and released in acidic environments such as endosomes/lysosomes, ultimately inducing cytotoxicity by arresting tumor cell cycling with inserted DNA. It is noteworthy that the RGD-IFP/7-AAD nanoprobe tail-vein injection approach demonstrated not only high tumor-targeted imaging potential, but also potent antitumor therapeutic effects in vivo. The proposed strategy may be used in peptide-driven bifunctional nanoparticles for precise imaging and cancer therapy.

4.
Acta Pharmaceutica Sinica B ; (6): 149-166, 2022.
Article in English | WPRIM | ID: wpr-929285

ABSTRACT

Colorectal cancer (CRC), a malignant tumor worldwide consists of microsatellite instability (MSI) and stable (MSS) phenotypes. Although SHP2 is a hopeful target for cancer therapy, its relationship with innate immunosuppression remains elusive. To address that, single-cell RNA sequencing was performed to explore the role of SHP2 in all cell types of tumor microenvironment (TME) from murine MC38 xenografts. Intratumoral cells were found to be functionally heterogeneous and responded significantly to SHP099, a SHP2 allosteric inhibitor. The malignant evolution of tumor cells was remarkably arrested by SHP099. Mechanistically, STING-TBK1-IRF3-mediated type I interferon signaling was highly activated by SHP099 in infiltrated myeloid cells. Notably, CRC patients with MSS phenotype exhibited greater macrophage infiltration and more potent SHP2 phosphorylation in CD68+ macrophages than MSI-high phenotypes, suggesting the potential role of macrophagic SHP2 in TME. Collectively, our data reveals a mechanism of innate immunosuppression mediated by SHP2, suggesting that SHP2 is a promising target for colon cancer immunotherapy.

5.
Article in English | WPRIM | ID: wpr-929244

ABSTRACT

Fourteen new geranyl phenyl ethers (1-14) along with three known compounds (15-17) were isolated from Illicium micranthum, and their structures were elucidated by comprehensive spectroscopic methods. Illimicranins A-H (1-8) were characterized as geranyl vanillin ethers, while 9 and 10 were dimethyl acetal derivatives. Illimicranins I and J (11 and 12) were rare geranyl isoeugenol ethers. Illimicranins K and L (13 and 14) represented the first example of geranyl guaiacylacetone ether and geranyl zingerone ether, respectively. Compounds 1, 2 and 15 exhibited anti-HBV (hepatitis B virus) activity against HBsAg (hepatitis B surface antigen) and HBeAg (hepatitis B e antigen) secretion, and HBV DNA replication.


Subject(s)
Antiviral Agents/pharmacology , Hepatitis B Surface Antigens , Hepatitis B e Antigens , Illicium/chemistry , Phenyl Ethers
6.
Article in Chinese | WPRIM | ID: wpr-928163

ABSTRACT

This study aims to analyze the research on the prevention and treatment of cerebral small vessel diseases(CSVDs) with traditional Chinese medicine(TCM) based on knowledge map, and to preliminarily explore the research hotspots and trends. To be specific, articles on TCM treatment of CSVDs in CNKI, Wanfang, and VIP(from establishment to November 2021) were retrieved, followed by bibliometric analysis. Then CiteSpace 5.7 R4 and Gephi were employed for generation of maps on annual number of articles, author cooperation, institution cooperation, keyword co-occurrence, keyword clustering, and keyword emergence. A total of 106 eligible articles were screened out, and the annual number of articles presented a steady upward trend. A total of 277 authors were included in the author cooperation network, among whom CHEN Zhigang published the most articles. A total of 87 institutions were included in the institution cooperation network, among which Dongfang Hospital of Beijing University of Chinese Medicine showed the most frequent cooperation with other institutions. Keyword clustering showed that research on the TCM treatment of CSVDs mainly focused on five aspects: related disease research, neurological function deficits, disease nature and location in TCM, TCM treatment methods, and formulas. The prevention and treatment of CSVDs with TCM in China has been developing steadily in the past ten years, and TCM has unique advantages in the prevention and treatment of this disease. The knowledge maps vividly demonstrated the development and research hotspots and trends in this field. The result is expected to provide a reference for further research in this field.


Subject(s)
Bibliometrics , Cerebral Small Vessel Diseases/prevention & control , China , Humans , Medicine, Chinese Traditional , Publications
7.
Article in Chinese | WPRIM | ID: wpr-927946

ABSTRACT

In this study, the content of five heavy metals(Pb, Cd, As, Hg, and Cu) in 59 batches of Lonicerae Japonicae Flos(LJF) medicinal materials and pieces were determined by inductively coupled plasma mass spectrometry(ICP-MS). The health risk assessment was processed using the maximum estimated daily intake(EDI), target hazard quotients(THQ), and carcinogenic risks(CR) assessment models. With reference to the limit standard for heavy metal content in LJF specified in 2020 edition of Chinese Pharmacopoeia, five batches produced in Hebei were found to contain excessive Pb, and the remaining 54 batches met the specifications, with the unqualified rate of 8.47%. Comparative analysis of heavy metal content in LJF samples from three different producing areas, namely Shandong, Henan, and Hebei showed that the levels of Pb, As, and Hg in LJF from Hebei were significantly higher than those from Henan and Shandong. The samples produced in Shandong contained the highest content of Cd. The samples from Hebei contained the highest content of Cu while those from Shandong had the lowest content of Cu. As demonstrated by health risk assessment based on the EDI, THQ and CR models, these 59 batches of LJF samples did not cause significant health hazards for the exposed population, and there was no potential non-carcinogenic or carcinogenic risk. In conclusion, a few of LJF samples contained excessive heavy metals, so some measures, including controlling production environment, cultivating management mode, and optimizing processing methods, should be taken for ensuring the medication safety of LJF.


Subject(s)
Drugs, Chinese Herbal , Environmental Pollution/analysis , Mercury/toxicity , Metals, Heavy/toxicity , Risk Assessment
8.
Article in Chinese | WPRIM | ID: wpr-927915

ABSTRACT

In this experiment, Panax notoginseng saponins chitosan nanoparticles(PNS-NPs) were prepared by self-assembly and their appearance, particle size, encapsulation efficiency, drug loading, polydispersity index(PDI), Zeta potential, and microstructure were characterized. The prepared PNS-NPs were intact in structure, with an average particle size of(209±0.258) nm, encapsulation efficiency of 42.34%±0.28%, a drug loading of 37.63%±0.85%, and a Zeta potential of(39.8±3.122) mV. The intestinal absorption of PNS-NPs in rats was further studied. The established HPLC method of PNS was employed to investigate the effects of pH, perfusion rate, and different drugs(PNS raw materials, Xuesaitong Capsules, and PNS-NPs). The absorption rate constant(K_a) and apparent permeability coefficient(P_(app)) in the duodenum, jejunum, ileum, and colon were calculated and analyzed. As illustrated by the results, the intestinal absorption of PNS-NPs was increased in the perfusion solution at pH 6.8(P<0.05), and perfusion rate had no significant effect on the K_a and P_(app) of PNS-NPs. The intestinal absorption of PNS-NPs was significantly different from that of PNS raw materials and Xuesaitong Capsules(P<0.05), and the intestinal absorption of PNS-NPs was significantly improved.


Subject(s)
Animals , Chitosan/pharmacology , Intestinal Absorption , Nanoparticles , Panax notoginseng/chemistry , Rats , Saponins/pharmacology
9.
Article in Chinese | WPRIM | ID: wpr-910109

ABSTRACT

Objective:To improve the prenatal recognition and diagnostic accuracy of isolated tricuspid valve dysplasia (TVD) by analyzing fetal echocardiographic features.Methods:The fetal echocardiographic features of 7 cases with prenatal diagnosis of TVD were analyzed retrospectively in Pediatric Cardiovascular Center, Beijing Anzhen Hospital, Capital Medical University and Children′s Hospital of Shanxi from June 2012 to December 2020. The fetal echocardiographic characteristics of TVD were summarized.Results:Among the 7 fetuses with TVD, 6 cases showed functional pulmonary atresia with intact ventricular septum and different degrees of pulmonary valve regurgitation, and 1 case showed slightly narrowed pulmonary artery. Characteristic sonographical findings included: ①The axis of heart was exaggerated left-axis deviation and the ratio of cardiothoracic was obviously increased. The right heart was enlarged, in which the right atrium was significantly dilated (an important feature of TVD). ②The position of tricuspid valve ring was normal, the attachment point of each leaf was normal, some tricuspid valves were thickened and insufficiency. ③It was common to be complicated with functional pulmonary valve atresia with intact ventricular septum or severe pulmonary valve stenosis. ④Color Doppler imaging showed severe tricuspid regurgitation and the regurgitation velocity was less than 350 cm/s (an important feature of TVD). ⑤In fetus with functional pulmonary valve atresia with intact ventricular septum, color Doppler imaging showed retrograded ductal flow across the pulmonary artery and the different degrees regurgitation of pulmonary valve.Conclusions:Fetal TVD has typical echocardiographic features, mainly including large tricuspid regurgitation and significant enlargement of the right atrium. The prognosis of fetus with functional pulmonary atresia is poor. Early diagnosis plays a crucial role in prenatal consultation and prognosis evaluation.

10.
Article in Chinese | WPRIM | ID: wpr-910104

ABSTRACT

Objective:To explore the application of four-dimensional automatic left atrial quantitation (4D LAQ) in evaluating left atrial function in patients with essential hypertension (EH) and to find the independent correlative factors affecting left atrial function.Methods:Fifty patients with EH(EH group) and fifty healthy controls(control group) were selected from Fuwai Center China Cardiovascular Hospital from September 2020 to January 2021. Conventional two-dimensional echocardiography was performed, and 4D LAQ parameters, including left atrial minimum volume (LAVmin), left atrial maximum volume (LAVmax), left atrial pre-systolic volume (LAVpreA), left atrial maximum volume index (LAVImax), left atrial reservoir longitudinal strain (LASr), left atrial conduit longitudinal strain (LAScd) and left atrial contraction longitudinal strain (LASct) was analyzed. The independent sample t-test or rank sum test was used to compare the EH group with the normal control group, and ROC curves were used to find the most sensitive parameters for evaluating left atrial function and their correlations were investigated by univariate and multivariate linear regression analyses. Results:Compared with the control group, there was no difference in left ventricular ejection fraction (LVEF) ( P>0.05), LAVmin, LAVmax, LAVpreA and LAVImax increased significantly (all P<0.05), the absolute values of LASr, LAScd and LASct were decreased (all P<0.05). ROC curve analysis showed that LASr had the best performance in evaluating left atrial function in EH patients (AUC: 0.929), systolic blood pressure (SBP), relative wall thickness (RWT) and E/e′ were negatively correlated with LASr (β=-0.308, P<0.05; β=-0.219, P<0.05; β=-0.359, P<0.05). Conclusions:4D LAQ can early identify the changes of left atrial function in EH patients, and the longitudinal strain in the left atrial reservoir period, left atrial conduit period and left atrial contraction period are all impaired in EH patients. LASr has the highest evaluation efficiency in evaluating the left atrial function, and SBP, RWT and E/e′ are independently correlated with LASr.

11.
Article in Chinese | WPRIM | ID: wpr-909015

ABSTRACT

Objective:To explore the effect of problem-based learning (PBL) combined with video teaching mode on the standardized residency training of digestive operating room.Methods:The study selected 52 digestive operating room residents who participated in the standardized residency training in The First Affiliated Hospital of Air Force Medical University from December, 2019 to March, 2020 as research subjects and they were randomized into the routine group and the observation group, with 26 residents in each group. The routine group only issued the standardized training materials for learning, and the observation group introduced PBL combined with video teaching mode on this basis, with 1 month of learning time for both group. The scores of theory and practice, the scores of core competence before and after learning and the satisfaction with teaching mode were compared between the two groups. SPSS 24.0 was used for t test, rank sum test and chi-square test. Results:The results of theory and practice, excellent and good rate of observation group were higher than those of routine group ( P<0.05). After learning, the scores of basic knowledge reserve, emergency identification ability, event handling ability, field investigation ability and safety protection ability of the two groups were higher than those before learning, of which the observation group were significantly higher than the routine group, with statistical differences ( P<0.05). The satisfaction of the observation group was higher than that of the routine group. Conclusion:PBL combined with video teaching mode can improve the performance and core competence of digestive operating room residents, thus reaching their satisfaction.

12.
Article in Chinese | WPRIM | ID: wpr-921911

ABSTRACT

Recurrent anterior dislocation of shoulder with bone defect is one of the common diseases of shoulder joint. How to effectively repair glenoid bone defect and reduce recurrence rate of shoulder dislocation is a problem that clinicians focus on. Bone grafting could stimulate bone, promote bone regeneration and bone remodeling, and restore the normal anatomical structure of glenoid. Among them, Bristow-Latarjet procedure is a classic operation for recurrent shoulder dislocation. Latarjet procedure could repair larger glenoid bone defects, but with higher surgical skills for surgeons;autogenous iliac grafting is the first choice for revision once Latarjet procedure failed;osteochondral grafting (autogenous and allogenous) has certain advantages in reconstructing original articular surface and preventing joint degeneration, but autologous osteochondral grafting may cause secondary injury, while immune rejection is difficult to avoid for allogenous osteochondral grafting. With the improvement of composite materials, and the mechanism of bone regeneration and remodeling, as well as the advantages and disadvantages of bone grafting, tissue engineering technology may become an effective method for the treatment of glenoid bone defect in the future.


Subject(s)
Bone Transplantation , Humans , Joint Instability , Recurrence , Shoulder , Shoulder Dislocation/surgery , Shoulder Joint
13.
Article in Chinese | WPRIM | ID: wpr-912452

ABSTRACT

Objective:To establish the sex-, age-and season-specific (month) reference intervals (RI) for thyroid stimulating hormone (TSH) measurement by big data and indirect method in adults.Methods:TSH data of anonymous patients were collected from Beijing Chaoyang Hospital Affiliated to Capital Medical University in 2016, the data were selected and outliers were removed. Indirect methods (Hoffmann method and Bhattacharya method) were used to calculate TSH reference intervals of whole population, different genders, ages and seasons (months). TSH RI from two indirect methods of total population, selected population, physical examination population was compared with RI from reagent instruction according to reference change value ( RCV) based on biological variability. Results:A total of 61 599 records were obtained from 90 699 records including 18 776 males and 42 823 females. The TSH RI were obtained by Hoffmann method: the whole population, 0.59-5.59 μIU/ml (1 μIU/ml=1 mIU/L), male, 0.53-5.16 μIU/ml, female, 0.59-6.11 μIU/ml. The upper limits of TSH RI were higher with age and in winter (January): 18-30 years old, 0.62-5.57 μIU/ml, 71-80 years old, 0.49-6.45 μIU/ml; January, 0.59-6.40 μIU/ml, August, 0.60-5.56 μIU/ml; The RI of TSH by Bhattacharya method: the whole population, 0.58-5.80 μIU/ml, male, 0.55-5.02 μIU/ml, female, 0.62-6.21 μIU/ml. The upper limits of TSH RI were also higher with age and in winter (January): 18-30 years old, 0.65-5.67 μIU/ml, 71-80 years old, 0.46-5.99 μIU/ml, January: 0.61-6.52 μIU/ml, August: 0.61-5.69 μIU/ml. Compared to RI from reagent instruction, the differences of TSH RI from two indirect methods of total population, selected population, physical examination population were acceptable.Conclusions:TSH RI was established by indirect method. With the increase of age and winter, the upper limit of TSH reference interval tends to increase.

14.
Article in Chinese | WPRIM | ID: wpr-912431

ABSTRACT

Objective:To evaluate the value of capillary electrophoresis in the diagnosis and differential diagnosis of benign and malignant monoclonal gammopathies (MGs).Methods:A retrospective analysis of the capillary electrophoresis test results of 2 445 newly diagnosed patients at the Affiliated Hospital of Qingdao University from January 2016 to June 2020 was carried out. Capillary zone electrophoresis and immunosubtractive assay were used to detect serum monoclonal protein (MP). The clinical diagnosis and other information of the patients were collected from the clinical database of the Affiliated Hospital of Qingdao University. Kruskal-Wallis rank sum test was used to compare the different amount of monoclonal protein among multiple groups. Receiver operator characteristic curve (ROC) was used to analyze the diagnostic sensitivity and specificity of the monoclonal protein of each type. Youden index was used to calculate the cut-off values.Results:Among the 2 445 patients, 1 183 were positive for monoclonal protein, of which 944 cases were diagnosed as malignant MG, 174 were monoclonal gammopathy of undetermined significance (MGUS), and 65 cases were monoclonal gammopathy of renal significance (MGRS). The percentages of M protein types from high to low is immunoglobulin G(IgG)-κ, IgG-λ, IgA-λ, IgA-κ, free λ light chain, free κ light chain, IgM-κ, double clone, and IgM-λ. The levels of MP of IgG, IgA, IgM and FLC in the malignant MG group were all higher than those in the MGUS group, with statistical significance( P<0.01). The MP levels of IgG and IgA types in malignant MG group were higher than that in MGRS group ( P<0.01). ROC curve analysis showed that the MP of IgG, IgA, IgM and FLC types had good diagnostic efficacy for malignant MG ( P<0.01), and their AUC values were 0.947 (95 %CI 0.926-0.968), 0.930 (95 %CI 0.895-0.966), 0.844 (95 %CI 0.722-0.967) and 0.865 (95 %CI 0.781-0.950), respectively. For IgG, the cut-off value was 14.24 g/L, and the diagnostic sensitivity and specificity were 88.5% and 90.1%, respectively. The cut-off value of IgA was 8.88 g/L, and the sensitivity and specificity of IgA were 87.9% and 81.4%, respectively. For IgM, the cut-off value was 26.93 g/L, and the sensitivity was 64.4% and the specificity was 90.9%. For FLC, the cut-off value, diagnostic sensitivity, and specificity was 7.08 g/L, 85.9%, and 77.8%, respectively. Conclusions:Capillary electrophoresis immunotyping technique can be used to diagnose malignant MG such as multiple myeloma (MM) and non-Hodgkin′s lymphoma (NHL), as well as to screen and track diseases like MGUS and MGRS. Serum MP level can be used to distinguish malignant MG from benign MG effectively.

15.
Article in Chinese | WPRIM | ID: wpr-911377

ABSTRACT

Objective:To evaluate the effect of canagliflozin on intrarenal fat content and oxygenation in newly-diagnosed type 2 diabetes patients.Methods:Twenty-three newly-diagnosed type 2 diabetes patients were divided into canagliflozin( n=11) and glimepiride control( n=12) groups .Both groups received MRI scanning with Dixon MRI and BOLD MRI sequence to assess patients′ intrarenal fat content, oxygenation level before treatment and 24 weeks after treatment. Fasting blood glucose, glycosylated hemoglobin, blood uric acid, blood lipids, blood pressure, weight, and other metabolic index were also tested before and after treatment. Furthermore, the relationship between body mass index(BMI) and intrarenal fat content and the correlation between changes in intrarenal fat content and improvement in renal hypoxia were analyzed. Results:No significant differences were found in baseline age, body weight, fasting blood glucose, glycosylated hemoglobin, blood lipid, and serum uric acid between the two groups. There was no significant difference in fasting blood glucose, glycosylated hemoglobin, cholesterol(CHO), low-density lipoprotein-cholesterol(LDL-C), and triglycerides(TG) levels in both groups after 12 and 24 weeks of treatment. The decrease in body weight, blood uric acid level, and diastolic blood pressure from baseline in the canagliflozin group was greater than those in the control group( P<0.05). Two groups of patients with type 2 diabetes at baseline had no obvious difference in intrarenal fat content, and the patients′ BMI showed no obvious correlation with degree of intrarenal fat accumulation. Canagliflozin treatment for 24 weeks could reduce intrarenal fat content, which was higher than that of control group. The R2 * values of renal cortex and medulla in the canagliflozin group decreased from baseline by 19.22% and 22.63% respectively( P<0.05), whereas no significant difference was seen in the glimepiride control group. The decrease of intrarenal fat content in the canagliflozin group was related to the improvement of renal cortex and medulla oxygenation. Conclusion:Canagliflozin can reduce intrarenal fat accumulation and improve renal cortical hypoxia in newly diagnosed type 2 diabetes patients with normal renal function.

16.
China Occupational Medicine ; (6): 223-229, 2021.
Article in Chinese | WPRIM | ID: wpr-923242

ABSTRACT

OBJECTIVE: To analyze the epidemiological characteristics of pneumoconiosis among migrant workers without liability subject(hereinafter referred to as Pneumoconiosis without Liability Subject) in Hunan Province. METHODS: The cases of pneumoconiosis without liability subject from 2017 to 2019 in Hunan Province were selected as the research subjects using typical sampling method. They were clinical diagnosis by occupational disease diagnostic institutions. The distributions of age, gender, length of service, area, type of work, type of pneumoconiosis, pneumoconiosis stage and the situation of poor households with filing and registration card were analyzed. RESULTS: A total of 18 870 cases of pneumoconiosis without liability subject were clinically diagnosed in Hunan Province from 2017 to 2019. The patients were mainly males(accounting for 99.8%), with the age ranged 50-65 years old(64.7%). Most of them had dust exposure service length of 5-29 years(78.4%). The cases of stage Ⅰ, Ⅱ and Ⅲ pneumoconiosis accounted for 32.2%, 26.0% and 41.8% respectively. The main types of disease were coal workers′ pneumoconiosis and silicosis(accounted for 99.3%). The first five geographical distributions were Chenzhou City, Zhuzhou City, Hengyang City, Yiyang City and Shaoyang City, accounting for 17.9%, 14.6%, 14.1%, 11.8% and 9.2% respectively. The distribution of work types were mainly mine-related jobs(91.3%). There were 1 774 cases who had complications(9.4%), of which the top three complications were emphysema, pulmonary and bronchial infection and tuberculosis. There were 3 662 cases with poor households archives and cards(19.4%). CONCLUSION: The hazards of pneumoconiosis among migrant workers in Hunan Province should not be ignored. In 2017, Hunan Province took the lead in launching a large-scale basic medical treatment and rescue operation for migrant workers with pneumoconiosis, which helped solve the problem of pneumoconiosis in migrant workers who had no professional history certification and responsible employer.

17.
Article in English | WPRIM | ID: wpr-922763

ABSTRACT

Pulmonary hypertension (PH) is a severe pathophysiological condition characterized by pulmonary artery remodeling and continuous increases in pulmonary artery pressure, which may eventually develop to right heart failure and death. Although newly discovered and incredible treatment strategies in recent years have improved the prognosis of PH, limited types of effective and economical drugs for PH still makes it as a life-threatening disease. Some drugs from Chinese materia medica (CMM) have been traditionally applied in the treatment of lung diseases. Accumulating evidence suggests active pharmaceutical ingredients (APIs) derived from those medicines brings promising future for the prevention and treatment of PH. In this review, we summarized the pharmacological effects of APIs derived from CMM which are potent in treating PH, so as to provide new thoughts for initial drug discovery and identification of potential therapeutic strategies in alternative medicine for PH.


Subject(s)
China , Drugs, Chinese Herbal , Humans , Hypertension, Pulmonary/drug therapy , Materia Medica , Medicine, Chinese Traditional
18.
Asian Journal of Andrology ; (6): 580-589, 2021.
Article in English | WPRIM | ID: wpr-922375

ABSTRACT

The synaptonemal complex (SC) is a meiosis-specific proteinaceous macromolecular structure that assembles between paired homologous chromosomes during meiosis in various eukaryotes. The SC has a highly conserved ultrastructure and plays critical roles in controlling multiple steps in meiotic recombination and crossover formation, ensuring accurate meiotic chromosome segregation. Recent studies in different organisms, facilitated by advances in super-resolution microscopy, have provided insights into the macromolecular structure of the SC, including the internal organization of the meiotic chromosome axis and SC central region, the regulatory pathways that control SC assembly and dynamics, and the biological functions exerted by the SC and its substructures. This review summarizes recent discoveries about how the SC is organized and regulated that help to explain the biological functions associated with this meiosis-specific structure.


Subject(s)
Animals , Chromosome Segregation , Meiosis/physiology , Synaptonemal Complex/physiology
19.
Chinese Journal of School Health ; (12): 547-550, 2021.
Article in Chinese | WPRIM | ID: wpr-876364

ABSTRACT

Objective@#To explore the relationship between sleep and exercise among grade 1-6 students in a certain city during the period of home based online courses in the epidemic, and to provide reference basis for the government and relevant departments to make relevant policies on student health promotion.@*Methods@#From April 22 to May 14 in 2020, 24 452 primary school students were selected by stratified cluster random sampling method to network questionnaire survey, which included general situation, sleep time,and exercise.@*Results@#Totally 21.6% of primary school students participated in low intensity exercise, 9.4% in moderate intensity exercise and 5.8% in high intensity exercise every day. Less than 10% of the students participated in all types of intense sports for more than 30 minutes each time. The report rate of sleep deprivation among students in grades 1 to 6 was 22.5%, 25.5%, 28.9%, 31.3%, 35.0%, 39.9%, respectively(χ 2=350.75, P<0.05). Multivariate Logistic regression analysis showed that after adjusting for gender, grade, oneness and other factors, high intensity exercise was negatively correlated with sleep deprivation(OR=0.91, 95%CI=0.86-0.97).@*Conclusion@#Insufficient sleep is common among primary students, and appropriate amount of high intensity exercise is a favorable factor to ensure adequate sleep time in primary school students.

20.
Article in English | WPRIM | ID: wpr-874352

ABSTRACT

Purpose@#We sought to investigate the effectiveness and safety of dabrafenib in children with BRAFV600E-mutated Langerhans cell histiocytosis (LCH). @*Materials and Methods@#A retrospective analysis was performed on 20 children with BRAFV600E-mutated LCH who were treated with dabrafenib. @*Results@#The median age at which the patients started taking dabrafenib was 2.3 years old (range, 0.6 to 6.5 years). The ratio of boys to girls was 2.3:1. The median follow-up time was 30.8 months (range, 18.9 to 43.6 months). There were 14 patients (70%) in the risk organ (RO)+ group and six patients (30%) in the RO– group. All patients were initially treated with traditional chemotherapy and then shifted to targeted therapy due to poor control of LCH or intolerance to chemotherapy. The overall objective response rate and the overall disease control rate were 65% and 75%, respectively. During treatment, circulating levels of cell-free BRAFV600E (cfBRAFV600E) became negative in 60% of the patients within a median period of 3.0 months (range, 1.0 to 9.0 months). Grade 2 or 3 adverse effects occurred in five patients. @*Conclusion@#Some children with BRAFV600E-mutated LCH may benefit from monotherapy with dabrafenib, especially high-risk patients with concomitant hemophagocytic lymphohistiocytosis and intolerance to chemotherapy. The safety of dabrafenib is notable. A prospective study with a larger sample size is required to determine the optimal dosage and treatment duration.

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