Mechanisms of PiT2-loop7 Missense Mutations Induced Pi Dyshomeostasis / 神经科学通报·英文版

PiT2 is an inorganic phosphate (Pi) transporter whose mutations are linked to primary familial brain calcification (PFBC). PiT2 mainly consists of two ProDom (PD) domains and a large intracellular loop region (loop7). The PD domains are crucial for the Pi transport, but the role of PiT2-loop7 remains unclear. In PFBC patients, mutations in PiT2-loop7 are mainly nonsense or frameshift mutations that probably cause PFBC due to C-PD1131 deletion. To date, six missense mutations have been identified in PiT2-loop7; however, the mechanisms by which these mutations cause PFBC are poorly understood. Here, we found that the p.T390A and p.S434W mutations in PiT2-loop7 decreased the Pi transport activity and cell surface levels of PiT2. Furthermore, we showed that these two mutations attenuated its membrane localization by affecting adenosine monophosphate-activated protein kinase (AMPK)- or protein kinase B (AKT)-mediated PiT2 phosphorylation. In contrast, the p.S121C and p.S601W mutations in the PD domains did not affect PiT2 phosphorylation but rather impaired its substrate-binding abilities. These results suggested that missense mutations in PiT2-loop7 can cause Pi dyshomeostasis by affecting the phosphorylation-regulated cell-surface localization of PiT2. This study helps understand the pathogenesis of PFBC caused by PiT2-loop7 missense mutations and indicates that increasing the phosphorylation levels of PiT2-loop7 could be a promising strategy for developing PFBC therapies.

Evaluation of Extrathyroidal Extension of Papillary Thyroid Microcarcinoma With Three-Dimensional Tomographic Ultrasound Imaging / 中国医学科学院学报

Objective To evaluate extrathyroidal extension (ETE) in papillary thyroid microcarcinoma (PTMC) with three-dimensional tomographic ultrasound imaging (3D-TUI). Methods A total of 97 thyroid nodules of 79 patients with PTMC treated in PUMC Hospital from February 2016 to January 2018 were included in this study.Two ultrasound experts performed independent blinded assessment of the relationship between thyroid nodules and thyroid capsule by two-dimensional ultrasound (2D-US) and 3D-TUI.The results of 2D-US and 3D-TUI in evaluating ETE were compared with intraoperative findings and postoperative histological and pathological results. Results Among the 97 nodules,54 (55.7%) nodules had ETE.The diagnostic sensitivity (68.5% vs.37.0%;χ2=10.737,P=0.002),accuracy (74.5% vs.56.7%;χ2=6.686,P=0.015),and area under the receiver operating characteristic curve[0.761 (95%CI=0.677-0.845) vs.0.592 (95%CI=0.504-0.680);Z=3.500,P<0.001] of 3D-TUI were higher than those of 2D-US.However,3D-TUI and 2D-US showed no significant difference in the specificity (84.1% vs.81.4%;χ2=0.081,P=0.776),negative predictive value (67.9% vs.50.7%;χ2=3.645,P=0.066),or positive predictive value (84.1% vs.71.4%;χ2=1.663,P=0.240). Conclusion Compared with 2D-US,3D-TUI demonstrates increased diagnostic efficiency for ETE of PTMC.

Effects of Pearl Hydrolysate on Hepatic Sinusoidal Endothelial Cell Viability and Capillarization in Liver Fibrosis / 中国医学科学院学报

Objective To study the effect and mechanism of pearl hydrolysate on hepatic sinusoidal capillarization in liver fibrosis. Methods Hepatic sinusoidal endothelial cells (HSEC) and hepatic stellate cells (HSC-LX2) were incubated with Hepu pearl hydrolysate.The proliferation of HSEC and HSC-LX2 was examined by MTT colorimetry.The cell cycle and apoptosis of HSC-LX2 were measured by flow cytometry.The changes of the microstructures such as fenestra and basement membrane of HSEC were observed by transmission electron microscopy. Results The intervention with leptin increased the viability of HSC-LX2 (P=0.041),decreased the viability of HSEC (P=0.004),and caused capillarization signs such as decreased number and diameter of fenestrae and formation of continuous basement membrane.The treatment with pearl hydrolysate at different doses increased and expanded the fenestrae of HSEC (low dose:P=0.020;medium dose:P=0.028;high dose:P=0.032),disintegrated the extracellular basement membrane of HSEC (low dose:P=0.020;medium dose:P=0.028;high dose:P=0.032),decreased the viability of HSC-LX2 (low dose:P=0.018;medium dose:P=0.013;high dose:P=0.009),and induced the apoptosis of HSC-LX2 (low dose:P=0.012;medium dose:P=0.006;high dose:P=0.005).Pearl hydrolysate exerted therapeutic effect on capillarization in a dose-dependent manner (low dose:P=0.020;medium dose:P=0.028;high dose:P=0.032).Moreover,high-dose pearl hydrolysate showed stronger effect on capillarization of hepatic sinuses than colchicine (P=0.034) and salvianolic acid B (P=0.038). Conclusion Hepu pearl hydrolysate can increase the viability of HSEC,restore the area of fenestrae,disintegrate the basement membrane,and decrease the viability and induce the apoptosis of HSC-LX2,demonstrating significant pharmacological effects on the capillarization of HSEC and HSC-LX2.

Relationship between hemoglobin and serum uric acid in adults with various glucose metabolism status / 中华预防医学杂志

Objective: To investigate the relationship between hemoglobin and serum uric acid in adults with various glucose metabolism status. Methods: The demographic data and biochemical indicators of the adult population who had received physical examination in the Second Medical Center of the PLA General Hospital from January 2018 to December 2021 were collected. The subjects were divided into two groups according to the level of serum uric acid: the normal uric acid group and the hyperuricemia group. The relationship between hemoglobin (stratified into four levels of Q1 to Q4 by the quartile) and serum uric acid was quantified by using Pearson correlation and logistic regression analysis. The effects of age and glucose metabolism status on the relationship between hemoglobin and serum uric acid were analyzed. Results: A total of 33 183 adults were enrolled with age (50.6±10.0) years. The level of hemoglobin in the normal uric acid group (142.61±14.24) g/L was significantly lower than that in the hyperuricemia group [(151.79±11.24) g/L, P<0.001]. Univariate Pearson correlation analysis showed that hemoglobin was positively associated with serum uric acid (r=0.444, P<0.001). After adjusting for related confounding factors, multivariate logistic regression analysis showed that hemoglobin was associated with serum uric acid, and the OR values (95%CI) of hemoglobin Q2 to Q4 group were 1.29 (1.13-1.48), 1.42 (1.24-1.62) and 1.51 (1.32-1.72), respectively (Ptrend<0.001) when compared with hemoglobin Q1 group. Subgroup analysis and hierarchical interaction analysis suggested that with the increase of hemoglobin, the serum uric acid in the age<60 years subgroup, normal glucose subgroup and prediabetes subgroup increased gradually (Ptrend<0.05 and Pinteraction<0.001). Conclusion: The association between hemoglobin and serum uric acid in adults is affected by age and glucose metabolism status.

The mechanism of S100A7 inducing the migration and invasion in cervical cancer cells / 中华肿瘤杂志

Objective: To investigate the mechanism of S100A7 inducing the migration and invasion in cervical cancers. Methods: Tissue samples of 5 cases of cervical squamous cell carcinoma and 3 cases of adenocarcinoma were collected from May 2007 to December 2007 in the Department of Gynecology of the Affiliated Hospital of Qingdao University. Immunohistochemistry was performed to evaluate the expression of S100A7 in cervical carcinoma tissues. S100A7-overexpressing HeLa and C33A cells were established with lentiviral systems as the experimental group. Immunofluorescence assay was performed to observe the cell morphology. Transwell assay was taken to detect the effect of S100A7-overexpression on the migration and invasion of cervical cancer cells. Reverse transcription-quantitative real-time polymerase chain reaction (RT-qPCR) was used to examine the mRNA expressions of E-cadherin, N-cadherin, vimentin and fibronectin. The expression of extracellular S100A7 in conditioned medium of cervical cancer cell was detected by western blot. Conditioned medium was added into Transwell lower compartment to detect cell motility. Exosomes were isolated and extracted from the culture supernatant of cervical cancer cell, the expressions of S100A7, CD81 and TSG101 were detected by western blot. Transwell assay was taken to detect the effect of exosomes on the migration and invasion of cervical cancer cells. Results: S100A7 expression was positively expressed in cervical squamous carcinoma and negative expression in adenocarcinoma. Stable S100A7-overexpressing HeLa and C33A cells were successfully constructed. C33A cells in the experimental group were spindle shaped while those in the control group tended to be polygonal epithelioid cells. The number of S100A7-overexpressed HeLa cells passing through the Transwell membrane assay was increased significantly in migration and invasion assay (152.00±39.22 vs 105.13±15.75, P<0.05; 115.38±34.57 vs 79.50±13.68, P<0.05). RT-qPCR indicated that the mRNA expressions of E-cadherin in S100A7-overexpressed HeLa and C33A cells decreased (P<0.05) while the mRNA expressions of N-cadherin and fibronectin in HeLa cells and fibronectin in C33A cells increased (P<0.05). Western blot showed that extracellular S100A7 was detected in culture supernatant of cervical cancer cells. HeLa cells of the experimental group passing through transwell membrane in migration and invasion assays were increased significantly (192.60±24.41 vs 98.80±47.24, P<0.05; 105.40±27.38 vs 84.50±13.51, P<0.05) when the conditional medium was added into the lower compartment of Transwell. Exosomes from C33A cell culture supernatant were extracted successfully, and S100A7 expression was positive. The number of transmembrane C33A cells incubated with exosomes extracted from cells of the experimental group was increased significantly (251.00±49.82 vs 143.00±30.85, P<0.05; 524.60±52.74 vs 389.00±63.23, P<0.05). Conclusion: S100A7 may promote the migration and invasion of cervical cancer cells by epithelial-mesenchymal transition and exosome secretion.

The impact of LDL-C/HDL-C ratio on severity of coronary artery disease and 2-year outcome in patients with premature coronary heart disease: results of a prospective, multicenter, observational cohort study / 中华心血管病杂志

Objective: To explore the relationship between low density lipoprotein cholesterol (LDL-C)/high density lipoprotein cholesterol (HDL-C) ratio with the severity of coronary artery disease and 2-yeat outcome in patients with premature coronary heart disease. Methods: This prospective, multicenter, observational cohort study is originated from the PROMISE study. Eighteen thousand seven hundred and one patients with coronary heart disease (CHD) were screened from January 2015 to May 2019. Three thousand eight hundred and sixty-one patients with premature CHD were enrolled in the current study. According to the median LDL-C/HDL-C ratio (2.4), the patients were divided into two groups: low LDL-C/HDL-C group (LDL-C/HDL-C≤2.4, n=1 867) and high LDL-C/HDL-C group (LDL-C/HDL-C>2.4, n=1 994). Baseline data and 2-year major adverse cardiovascular and cerebrovascular events (MACCE) were collected and analyzed in order to find the differences between premature CHD patients at different LDL-C/HDL-C levels, and explore the correlation between LDL-C/HDL-C ratio with the severity of coronary artery disease and MACCE. Results: The average age of the low LDL-C/HDL-C ratio group was (48.5±6.5) years, 1 154 patients were males (61.8%); the average age of high LDL-C/HDL-C ratio group was (46.5±6.8) years, 1 523 were males (76.4%). The number of target lesions, the number of coronary artery lesions, the preoperative SNYTAX score and the proportion of three-vessel coronary artery disease in the high LDL-C/HDL-C group were significantly higher than those in the low LDL-C/HDL-C group (1.04±0.74 vs. 0.97±0.80, P=0.002; 2.04±0.84 vs. 1.85±0.84, P<0.001; 13.81±8.87 vs. 11.70±8.05, P<0.001; 36.2% vs. 27.4%, respectively, P<0.001). Correlation analysis showed that there was a significant positive correlation between LDL-C/HDL-C ratio and preoperative SYNTAX score, the number of coronary artery lesions, the number of target lesions and whether it was a three-vessel coronary artery disease (all P<0.05). The 2-year follow-up results showed that the incidence of MACCE was significantly higher in the high LDL-C/HDL-C group than that in the low LDL-C/HDL-C group (6.9% vs. 9.1%, P=0.011). There was no significant difference in the incidence of all-cause death, cardiac death, myocardial infarction, stroke, revascularization and bleeding between the two groups. Cox multivariate regression analysis showed that the LDL-C/HDL-C ratio has no correlation with 2-year MACCE, death, myocardial infarction, revascularization, stroke and bleeding events above BARC2 in patients with premature CHD. Conclusion: High LDL-C/HDL-C ratio is positively correlated with the severity of coronary artery disease in patients with premature CHD. The incidence of MACCE of patients with high LDL-C/HDL-C ratio is significantly higher during 2 years follow-up; LDL-C/HDL-C ratio may be an indicator for evaluating the severity of coronary artery disease and long-term prognosis in patients with premature CHD.

Standard for monitoring and evaluation of two-dimensional- and three-dimensional-transesophageal echocardiography during transcatheter tricuspid valve replacement / 中华超声影像学杂志

Transcatheter tricuspid valve intervention is the new frontier of interventional cardiology. The LuX-Valve is a radial force-independent orthotopic tricuspid valve replacement device developed in China. The LuX-Valve Plus transcatheter tricuspid valve replacement (TTVR) system is changed from the trans-atrial to the transjugular approach, which further reduces trauma and pulmonary complications compared with the first generation LuX-Valve. The first-in-human study has been completed at Zhongshan Hospital, Fudan University and an exploratory multicentre clinical study is underway. Echocardiography plays an important role in pre-TTVR screening, intraoperative guidance and postoperative evaluation and follow-up, especially two-dimensional transoesophageal echocardiography (2D-TEE) and three-dimensional transoesophageal echocardiography (3D-TEE). However, there is a lack of appropriate intraoperative guidance and assessment protocols. In this study, we briefly described the protocols and imaging considerations for intraoperative 2D-TEE and 3D-TEE to ensure the successful implantation of TTVR.

Research progress in the diagnosis and treatment of radiocarpal fracture-dislocation / 中华创伤杂志

Radiocarpal fracture-dislocation (RFD) is a rare injury normally associated with the destruction of bones, joints and ligaments. The improper diagnosis and treatment of RFD will cause severe complications and affect the long-term function of wrist joints. The difficulties of clinical diagnosis and treatment lie in the accurate diagnosis, identification and reconstruction of the structure of specific injury. As the foreign and domestic literatures are mainly case analyses or systemic case reports rather than large-scale reports, there still lacks a systemic knowledge of the standard diagnosis and treatment of RFD clinically, thus leading to problems such as missed diagnosed or misdiagnosed, improper application of treatment methods and incomplete reconstruction. Therefore, the authors reviewed relevant literatures about the features, diagnosis and treatment of RFD, in order to provide references for the clinical diagnosis and treatment of RFD.

Changes of plasma METTL3, WTAP and FTO levels in patients with systemic lupus erythematosus and their correlation with clinical indicators / 中国医师杂志

Objective:To explore the clinical significance of N6-methyladenine (m6A) in systemic lupus erythematosus (SLE) by comparing the changes in plasma levels of m6A modification related proteins [methyltransferase 3 (METTL3), methyltransferase 14 (METTL14), Wilms tumor 1 associated protein (WTAP), AlkB homologous protein 5 (ALKBH5), and fat mass and obesity-associated protein (FTO)] and m6A between patients with systemic lupus erythematosus (SLE) and healthy controls.Methods:A total of 64 SLE patients admitted to the Seventh Affiliated Hospital of Sun Yat-Sen University from May 2020 to June 2022 and 24 healthy volunteers during the same period were selected to compare and analyze the plasma levels of METTL3, METTL14, WTAP, ALKBH5, FTO and m6A between the two groups. The correlation between METTL3, WTAP, FTO levels and clinical indicators was analyzed.Results:The plasma METTL3 level of SLE patients was significantly higher than that of control group ( P<0.05), and the plasma WTAP and FTO levels were significantly lower than those of control group (all P<0.05). In SLE patients, plasma METTL3 level was negatively correlated with hemoglobin level ( r=-0.344, P<0.05), plasma FTO level was positively correlated with plasma IgM level ( r=0.337, P<0.05), and plasma IgA level was negatively correlated with SLE patients ( r=-0.286, P<0.05). The incidence of renal involvement and positive rate of plasma anti-histone antibody were higher in SLE patients with high METTL3 level (all P<0.05). The positive rates of plasma anti-dsDNA antibody, anti-SM antibody and AuaA antibody were higher in SLE patients with low FTO level (all P<0.05). Conclusions:The plasma METTL3 level in SLE patients are significantly increased, while the plasma WTAP and FTO levels are significantly reduced, which are related to various clinical indicators and may be related to the onset of SLE.

Sleep deprivation aggravates cognitive impairment in septic rats by activating neuronal glycolytic isoenzyme PFKFB3 / 中华危重病急救医学

Objective:To evaluate the effect of sleep deprivation on cognitive function in septic rats and its relationship with neuronal glycolysis isoenzyme phosphofructokinase-2/fructose-2,?6-diphosphatase 3 (PFKFB3).Methods:Fifty-six healthy male Sprague-Dawley (SD) rats were randomly divided into 4 groups ( n = 14): control group (Con group), sepsis group (LPS group), sepsis+sleep deprivation group (LPS+SD group), sepsis+sleep deprivation+glycolysis inhibitor 3-PO treatment group (LPS+SD+3-PO group). The sepsis model was established by intraperitoneal injection of lipopolysaccharide (LPS) 10 mg/kg. Rats in LPS+SD group were treated with sleep deprivation using a sleep deprivation instrument 24 hours after LPS injection. The LPS+SD+3-PO group was intraperitoneally injected with LPS for 24 hours, and then injected with 3-PO 50 mg/kg, followed by sleep deprivation. Novel object recognition experiments were performed 72 hours after LPS injection. Subsequently, blood and brain tissue samples were collected. The contents of lactate (Lac), reactive oxygen species (ROS) and serum tumor necrosis factor-α(TNF-α), neuron-specific enolase (NSE), pyruvate in brain tissue were detected by enzyme-linked immunosorbent assay (ELISA). Then, the lactate/pyruvate ratio was calculated. Na +-K +-ATPase activity in brain tissue was detected by colorimetry. Morphological changes in hippocampus were detected by hematoxylin-eosin (HE) staining. And the protein expression levels of PFKFB3, ZO-1 and cleaved caspase-3 were measured by Western blotting. Results:Compared with Con group, the novel object recognition index of LPS group was decreased, the levels of NSE, TNF-α, lactate/pyruvate ratio in serum and the levels of Lac, ROS and dry-wet weight ratio in brain tissue were significantly increased, Na +-K +-ATPase activity in brain tissue was decreased, the protein expressions of PFKFB3, caspase-3 were up-regulated, ZO-1 expression was down-regulated, and the neurons in hippocampus were slightly degenerated. Compared with LPS group, the novel object recognition index of LPS+SD group was further decreased [(39.4±5.3)% vs. (54.5±7.6)%)], serum NSE, TNF-α, lactate/pyruvate ratio and brain tissue Lac, ROS, dry-wet weight ratio were further increased [NSE (μg/L): 3.21±0.42 vs. 2.55±0.36, TNF-α (ng/L): 139.4±19.7 vs. 92.2±13.5, lactate/pyruvate ratio: 29.7±5.5 vs. 19.2±4.2, Lac (μmol/g): 19.51±2.33 vs. 11.34±1.52, ROS (kU/g): 117.4±18.7 vs. 78.2±11.8, dry-wet weight ratio: (81.3±9.2)% vs. (64.3±6.6)%], and Na +-K +-ATPase activity was further decreased (mmol·L -1·h -1: 1.88±0.34 vs. 2.91±0.39), the protein expressions of PFKFB3, caspase-3 were further up-regulated and ZO-1 expression was further down-regulated (PFKFB3/β-actin: 0.80±0.11 vs. 0.45±0.07, caspase-3/β-actin: 0.71±0.09 vs. 0.37±0.05, ZO-1/β-actin: 0.31±0.05 vs. 0.61±0.08). The differences were statistically significant (all P < 0.05). HE staining showed that the degeneration of neurons in hippocampus was significantly aggravated. Compared with LPS+SD group, the novel object recognition index of LPS+SD+3-PO group was increased [(50.8±5.9)% vs. (39.4±5.3)%], NSE, TNF-α, lactate/pyruvate ratio of serum and Lac, ROS, dry-wet weight ratio of brain tissue were significantly decreased [NSE (μg/L): 2.60±0.33 vs. 3.21±0.42, TNF-α (ng/L): 103.7±18.3 vs. 139.4±19.7, lactate/pyruvate ratio: 17.4±5.1 vs. 29.7±5.5, Lac (μmol/g): 13.68±2.02 vs. 19.51±2.33, ROS (kU/g): 86.9±14.5 vs. 117.4±18.7, dry-wet weight ratio: (67.7±6.9)% vs. (81.3±9.2)%], and Na +-K +-ATPase activity was increased (mmol·L -1·h -1: 2.82±0.44 vs. 1.88±0.34). The protein expressions of PFKFB3, caspase-3 were down-regulated and ZO-1 expression was up-regulated (PFKFB3/β-actin: 0.50±0.06 vs. 0.80±0.11, caspase-3/β-actin: 0.43±0.06 vs. 0.71±0.09, ZO-1/β-actin: 0.52±0.06 vs. 0.31±0.05). The differences were statistically significant (all P < 0.05). HE staining showed that the degeneration of neurons in hippocampus was significantly improved. Conclusions:Sleep deprivation could aggravate neuroinflammation, neuronal degeneration and apoptosis in septic rats, resulting in destruction of blood-brain barrier and cognitive impairment. 3-PO treatment significantly alleviate the injury and degeneration of hippocampal neurons in septic rats, inhibit neuroinflammation and apoptosis, and improve cognitive dysfunction, which may be related to the inhibition of glycolytic isoenzyme PFKFB3.

Research on the online teaching practice of Chinese traditional medicine based on the model of "Chaoxing learning platform + live broadcasting" / 中华医学教育探索杂志

Taking the course of Chinese traditional medicine as an example, this paper discusses the construction and implementation effect of online teaching mode from the following four aspects: online teaching curriculum design, teaching implementation, teaching effect evaluation, and teaching reflection, with a view to providing beneficial reference for the follow-up hybrid teaching and promoting the construction of hybrid first-class courses by summarizing the experience of online teaching.

Characterization of platelet-derived extracellular vesicles induced by differential platelet activation pathways / 中国输血杂志

【Objective】 To investigate the effects of platelet activation pathways on the characterization of platelet-derived extracellular vesicles(PEVs). 【Methods】 Whole blood from healthy donors was prepared into platelet suspension by centrifugation. Platelets were randomly divided into six groups, the ctrl group added no extra stimulus, and the other five groups were treated with collagen, adenosine diphosphate(ADP), thrombin, Ca2+ ionophore and freeze-thaw cycles (F-T) to activate platelets. Platelet-derived exosomes(PEXOs) and microvesicles(PMVs) were isolated by differential centrifugations, and then were determined by nano-flow cytometry and electron microscopy. The protein markers of PEXOs also were identified by western-blot. The protein concentration and content of PEXOs were also detected. 【Results】 CD9, CD81, TSG101 proteins were detected in all of the PEXOs, which had no calnexin. Both PEXOs and PMVs had CD41; PEXOs were cup-holder-like bilayer membrane vesicles under a transmission electron microscope, while PMVs were irregular membranous structure; 85%-95% of PEXOs were<100nm, 87%-94% of PMVs were 100-300nm. The concentration of exosomes and microvesicles in the F-T group was the highest(205.67±65.27 and 102.73±15.48), followed by the Ca2+ ionophore group(44.42±17.07 and 11.4±4.81). Although in the same size range, the numbers of PEVs induced by different activation conditions varied. The protein concentration of PEXOs in the F-T group(1.11±0.51) was higher than that in the control group(0.32±0.39), ADP group(0.41±0.31) and thrombin group(0.38±0.37), while the total protein(125.40±58.32) was higher than that in other three groups(the ctrl group 25.53±25.96 vs ADP group 37.21±15.73 vs thrombin group 36.28±24.18 vs Ca2+ ionophore group 47.09±23.29). 【Conclusion】 The biological characteristics of PEVs are affected by platelets activation pathways, whose ability to induce protein-packing into exosomes may also be relevant to the particle size. The freeze-thaw cycles can induce high concentrations of extracellular vesicles, which may be an ideal method for the preparation of PEVs.

Cyberbullying and its effect on health risk behaviors among secondary vocational school students / 中国学校卫生

Objective@#To investigate the current situation of cyberbullying and health risk behaviors among secondary vocational school students, to explore the effects of cyberbullying on health risk behaviors, so as to provide a reference for formulating intervention strategies to promote adolescent health related behaviors.@*Methods@#From March to April 2023, a field survey was conducted on 1 184 students from one secondary vocational school each in Jilin City and Yanji City by random cluster sampling method. The data was analyzed using Chi square tests and generalized linear models.@*Results@#Among secondary vocational school students, 839 individuals (70.9%) experienced the cyberbullying, and 1 036 individuals (87.5%) had one and more health risk behavior group. There was a positive correlation between cyberbullying and health risk behaviors ( r=0.60, P <0.01). The generalized linear model analysis showed that female and no Internet addiction were negatively correlated with the health risk behaviors of secondary vocational students ( β =-2.75, -8.90), and the single parent families and peer pressure was positively correlated with the health behaviors of secondary vocational students ( β =2.56, 4.82)( P ＜0.05). Secondary vocational students experienced cyberbullying who from single parent families, peer pressure and social oriented internet usage were more likely to engage in health risk behaviors ( β= 3.41, 4.88, 2.20, P <0.05).@*Conclusions@#The incidence of cyberbullying and health risk behaviors among secondary vocational school students is relatively high, and cyberbullying can influence the occurrence of health risk behaviors. It is important to focus on and implement guidance for internet use and health behavior education for secondary vocational students from multiple perspectives, including the family, school, and society. Corresponding intervention strategies should be taken to promote the healthy development of adolescents.

Research progress on cardiovascular toxicity associated with anti-tumor drugs and its prevention and treatment / 药学学报

Cancer and cardiovascular diseases are the two major causes of death worldwide. The application of anti-tumor drugs has significantly improved the prognosis of patients, the cardiovascular toxicity caused by the application of them has become an important factor affecting the survival and prognosis of cancer patients. Therefore, the prevention and treatment of cardiovascular toxicity related to cancer treatment is increasingly important. The cardiovascular toxicity associated with anti-tumor drugs exhibits different clinical manifestations and involves multiple pathological mechanisms. This article reviews the current research progress from the perspective of the characteristics, molecular mechanisms and prevention and treatment strategies of cardiovascular toxicity caused by cancer drugs.

Research progress of ionizable lipid nanoparticles for siRNA delivery / 药学学报

Small interfering RNA (siRNA) is the initiator of RNA interference and inhibits gene expression by targeted degradation of specific messenger RNA. siRNA-mediated gene regulation has high efficiency and specificity and exhibits great significance in the treatment of diseases. However, the naked or unmodified siRNA has poor stability, easy to degrade by nuclease, short half-life, and low intracellular delivery. As an emerging non-viral nucleic acid delivery system, ionizable lipid nanoparticles play an important role in improving the druggability of siRNA. At present, one siRNA drug based on ionizable lipid nanoparticles has been approved for the treatment of rare disease. This review introduces the research progress in ionizable lipid nanoparticles for siRNA delivery, focusing on the effect of each component of lipid nanoparticles on the efficiency of siRNA-mediated gene silencing, which provides new references for the studies on ionizable lipid nanocarriers for siRNA delivery.

Pyridine pigments from functional Monascus rice / 药学学报

The trace chemical components in functional Monascus rice were studied to explore the potential bioactive substances. MCI column, Sephadex LH-20 gel, and preparative liquid chromatography were used to purified the ethyl acetate extract from functional Monascus rice. Two novel pyridine Monascus pigments were isolated and identified, named monascopyridine G (1) and monascopyridine H (2), respectively based on extensive mass spectrometry (MS), infrared radiation (IR), and nuclear magnetic resonance (NMR) analysis. The molecular docking experiments between compounds 1 and 2 and peroxisome proliferators-activated receptor-gamma (PPARγ) showed that they exhibited obvious binding force with the receptor protein. Besides, the biosynthetic pathways of the two compounds were proposed, which provide a valuable reference for the selective production of these potential bioactive substances.

Study on the mechanism of Chonghe paste promoting the dissipation of swollen lesions in vivo and in vitro / 中国药房

OBJECTIVE To explore the mechanism of Chonghe paste promoting the dissipation of swollen lesions. METHODS The bacteriostatic effects of Chonghe paste against Staphylococcus aureus， Escherichia coli， Pseudomonas aeruginosa， Staphylococcus albus and Streptococcus pneumoniae were detected by punching method. The subcutaneous soft tissue infection model of rats was established by subcutaneous injection of S. aureus. The effects of 14 d intervention of Chonghe paste （Compound polymyxin B ointment as positive control） on the pathological changes of subcutaneous soft tissue， the protein expressions of type Ⅰ collagen， type Ⅲ collagen， matrix metalloproteinase-2 （MMP-2） and MMP-9 in subcutaneous soft tissue， and the contents of transforming growth factor-β （TGF-β） and basic fibroblast growth factor （bFGF） in serum were investigated. RESULTS Chonghe paste had varying degrees of bacteriostatic effect on the above 4 bacteria （except for S. pneumoniae）， especially on S. aureus. Compared with the model group， on the 7th day of treatment， collagen fibers in the Chonghe paste group were arranged in an orderly manner， pus dissipated faster； the protein expressions of type Ⅰ and type Ⅲ collagen and the contents of TGF-β and bFGF were up-regulated significantly， while protein expressions of MMP-2 and MMP-9 were decreased significantly （P＜0.05）. On the 14th day of administration， collagen deposition was obvious in the Chonghe paste group， subcutaneous appendages gradually formed； the protein expressions of type Ⅰ and type Ⅲ collagen and the contents of TGF-β and bFGF were down-regulated significantly， while the protein expressions of MMP-2 and MMP-9 were increased significantly （P＜0.05）. CONCLUSIONS Chonghe paste has the bacteriostatic effect and may play a role in promoting the dissipation of swollen lesions by regulating the formation and decomposition of fibrin and increasing the secretion of bFGF and TGF-β.

Practice and exploration of physician-pharmacist joint outpatient service mode of chronic obstructive pulmonary disease (COPD) and asthma / 药学实践杂志

Objective To explore the physician-pharmacist joint outpatient service mode of chronic obstructive pulmonary disease ( COPD) and asthma. Methods Cases of COPD or asthma patients who visited the joint outpatient department from June 2021 to December 2021 were collected in our hospital, the inhaler usage score，compliance ( MMAS-8) score，clinical control efficacy，incidence of adverse reactions and patient satisfaction were evaluated before and after pharmaceutical care intervention and statistically analyzed．Results The inhaler usage score，MMAS-8 score，and the Asthma Control Test（ACT）/COPD Assessment Test（CAT） score had been changed significantly after the intervention (P<0.05). Patient satisfaction with pharmaceutical care was basically above 94.75%．Conclusion Pharmaceutical care provided by joint outpatient department in our hospital could help COPD and asthma patients to use inhaler device correctly，resulting in improving compliance of inhaler usage, better disease control，and reducing the occurrence of adverse drug reactions, which could be a positive attempt and exploration of standardized pharmaceutical care model for patients with COPD and asthma．

Investigation and analysis of superficial fungal infection and drug use among naval trainees / 药学实践杂志

Objective To investigate the pathogenesis of superficial mycosis among naval trainees, and observe the efficacy of a novel antifungal drug. Methods A questionnaire survey was conducted on the onset, medication and recurrence of superficial fungal infection among the trainees from January, 2020 to July, 2020. At the same time, the new antifungal drug sulconazole nitrate spray was provided for treatment and the drug efficacy was observed. Results The participants generally lacked understanding and attention to superficial fungal infections. The incidence rate of superficial fungal infection was 52%, of which 76.2% of patients had recurrence of superficial fungal infection. The sulconazole nitrate spray showed great effect against these infections. Conclusion The trainees should understand the causes of superficial fungal infection through health education and seek medical treatment and medication in time. The cure rate of superficial fungal infections could only be improved through the collaborative management of the school, hospital, and trainees to reduce the impact of these infections on naval trainees’ work and life.

Research progress on the predicting value of serum markers related to postoperative recurrence in patients with hepatocellular carcinoma after curative resection / 中华检验医学杂志

Patients with surgically resected hepatocellular carcinoma (HCC) have a high recurrence rate within 5 years after surgery. It is therefore essential to explore the risk factors and predictive biomarkers for HCC recurrence and metastasis to identify high-risk patients for HCC recurrence. Serum specimens are readily available and have the advantage of being non-invasive, inexpensive and rapid to detect. Serum markers can dynamically monitor patients′ disease and indicate the status of tumor recurrence. This article summarized the research progress on the predictive value of serum markers associated with recurrence in HCC patients after surgical resection. From the perspectives of common clinical serum markers and liquid biopsy markers, present review aimed to provide some novel ideas for clinicians to assess the risk of HCC recurrence and metastasis in individual patient post-surgical resection of HCC.